/* roulang page: index */
:root {
            --color-primary: #4B3BFF;
            --color-primary-light: #7C4DFF;
            --color-gold: #FFD700;
            --bg-dark: #0A0E1A;
            --bg-card: rgba(255,255,255,0.05);
            --bg-card-hover: rgba(255,255,255,0.09);
            --bg-input: #1E2335;
            --text-white: #FFFFFF;
            --text-light: #E0E0E0;
            --text-muted: #A0A4B0;
            --border-light: rgba(255,255,255,0.1);
            --border-glow: rgba(124,77,255,0.25);
            --radius-card: 16px;
            --radius-sm: 8px;
            --radius-btn: 24px;
            --shadow-card: drop-shadow(0 8px 32px rgba(0,0,0,0.4));
            --shadow-glow: 0 0 30px rgba(124,77,255,0.2);
            --font-family: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            --transition-base: 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background-color: var(--bg-dark);
            color: var(--text-white);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

        a {
            color: var(--text-white);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--color-gold);
        }
        a:focus-visible {
            outline: 2px solid var(--color-gold);
            outline-offset: 2px;
        }

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

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

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-padding {
            padding: 80px 0;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            text-align: center;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .section-title .highlight {
            background: linear-gradient(135deg, var(--color-primary-light), var(--color-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .section-subtitle {
            text-align: center;
            color: var(--text-muted);
            font-size: 1.05rem;
            max-width: 640px;
            margin: 0 auto 48px auto;
        }
        .section-divider {
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-gold));
            border: none;
            margin: 12px auto 32px auto;
            border-radius: 2px;
        }

        /* Navigation – Desktop */
        .navbar-main {
            background: rgba(10, 14, 26, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-light);
            padding: 0 24px;
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            transition: background var(--transition-base);
        }

        .navbar-main .nav-logo {
            font-size: 1.35rem;
            font-weight: 800;
            background: linear-gradient(135deg, #fff, var(--color-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: 1px;
            white-space: nowrap;
        }

        .navbar-main .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .navbar-main .nav-links a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-light);
            padding: 6px 0;
            position: relative;
            transition: color var(--transition-base);
        }
        .navbar-main .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-gold);
            transition: width var(--transition-base);
        }
        .navbar-main .nav-links a:hover::after,
        .navbar-main .nav-links a.active::after {
            width: 100%;
        }
        .navbar-main .nav-links a:hover {
            color: var(--color-gold);
        }
        .navbar-main .nav-links a.active {
            color: var(--color-gold);
        }

        .navbar-main .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .btn-login {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: var(--text-white);
            padding: 8px 20px;
            border-radius: var(--radius-btn);
            font-size: 0.9rem;
            font-weight: 500;
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .btn-login:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--color-gold);
            color: var(--color-gold);
        }
        .btn-register {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            border: none;
            color: #fff;
            padding: 8px 24px;
            border-radius: var(--radius-btn);
            font-size: 0.9rem;
            font-weight: 600;
            box-shadow: 0 4px 20px rgba(75, 59, 255, 0.35);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .btn-register:hover {
            transform: scale(1.04);
            box-shadow: 0 6px 30px rgba(75, 59, 255, 0.5);
        }
        .btn-register:active {
            transform: scale(0.97);
        }

        /* Mobile Bottom Tab */
        .mobile-bottom-tab {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            height: 62px;
            background: rgba(10, 14, 26, 0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-top: 1px solid var(--border-light);
            z-index: 1060;
            justify-content: space-around;
            align-items: center;
            padding: 0 8px;
        }
        .mobile-bottom-tab .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2px;
            color: var(--text-muted);
            font-size: 0.7rem;
            padding: 4px 10px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-base);
            cursor: pointer;
            text-decoration: none;
            min-width: 56px;
        }
        .mobile-bottom-tab .tab-item i {
            font-size: 1.2rem;
            transition: color var(--transition-base);
        }
        .mobile-bottom-tab .tab-item span {
            font-size: 0.65rem;
            font-weight: 500;
        }
        .mobile-bottom-tab .tab-item:hover,
        .mobile-bottom-tab .tab-item.active {
            color: var(--color-gold);
        }
        .mobile-bottom-tab .tab-item.active i {
            color: var(--color-gold);
        }

        /* Hero */
        .hero-section {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: var(--bg-dark) url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            position: relative;
            padding: 100px 24px 60px;
            margin-top: 64px;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(10, 14, 26, 0.55) 0%, rgba(10, 14, 26, 0.88) 70%);
            z-index: 1;
        }
        .hero-section .hero-content {
            position: relative;
            z-index: 2;
            max-width: 820px;
        }
        .hero-section .hero-badge {
            display: inline-block;
            background: rgba(255, 215, 0, 0.15);
            border: 1px solid rgba(255, 215, 0, 0.3);
            color: var(--color-gold);
            padding: 6px 18px;
            border-radius: var(--radius-btn);
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 1px;
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }
        .hero-section .hero-title {
            font-size: 3.2rem;
            font-weight: 900;
            line-height: 1.25;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #fff 30%, var(--color-gold) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-section .hero-sub {
            font-size: 1.15rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto 36px auto;
            line-height: 1.7;
        }
        .hero-section .hero-cta {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            color: #fff;
            border: none;
            padding: 16px 48px;
            border-radius: var(--radius-btn);
            font-size: 1.1rem;
            font-weight: 700;
            box-shadow: 0 8px 32px rgba(75, 59, 255, 0.45);
            transition: all var(--transition-base);
            cursor: pointer;
            text-decoration: none;
            letter-spacing: 1px;
        }
        .hero-section .hero-cta:hover {
            transform: scale(1.05);
            box-shadow: 0 12px 40px rgba(75, 59, 255, 0.6);
            color: #fff;
        }
        .hero-section .hero-cta:active {
            transform: scale(0.97);
        }
        .hero-section .hero-cta i {
            font-size: 1.2rem;
        }
        .hero-scroll-indicator {
            position: absolute;
            bottom: 32px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 2;
            color: var(--text-muted);
            font-size: 1.6rem;
            animation: bounceDown 2s infinite;
            cursor: pointer;
        }
        @keyframes bounceDown {
            0%,
            100% {
                transform: translateX(-50%) translateY(0);
                opacity: 0.6;
            }
            50% {
                transform: translateX(-50%) translateY(12px);
                opacity: 1;
            }
        }

        /* Features */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 32px 24px;
            text-align: center;
            transition: all var(--transition-base);
            backdrop-filter: blur(6px);
        }
        .feature-card:hover {
            background: var(--bg-card-hover);
            transform: translateY(-6px);
            box-shadow: var(--shadow-glow);
            border-color: rgba(124, 77, 255, 0.3);
        }
        .feature-card .icon-box {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(75, 59, 255, 0.2), rgba(124, 77, 255, 0.2));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px auto;
            font-size: 1.8rem;
            color: var(--color-gold);
            border: 1px solid rgba(255, 215, 0, 0.2);
        }
        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .feature-card p {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.6;
            margin: 0;
        }

        /* Game Intro */
        .game-intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }
        .game-intro-grid .intro-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-glow);
            border: 1px solid var(--border-light);
        }
        .game-intro-grid .intro-image img {
            width: 100%;
            height: auto;
            display: block;
        }
        .game-intro-grid .intro-text h2 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .game-intro-grid .intro-text p {
            color: var(--text-light);
            font-size: 1rem;
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .game-intro-grid .intro-text .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }
        .game-intro-grid .intro-text .tag-list .tag {
            background: rgba(255, 215, 0, 0.12);
            color: var(--color-gold);
            padding: 4px 14px;
            border-radius: var(--radius-btn);
            font-size: 0.82rem;
            font-weight: 500;
            border: 1px solid rgba(255, 215, 0, 0.2);
        }

        /* Rewards Preview – 3D Flip Cards */
        .rewards-section {
            background: linear-gradient(180deg, var(--bg-dark) 0%, #111827 100%);
        }
        .rewards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .flip-card {
            perspective: 1000px;
            height: 280px;
            cursor: pointer;
        }
        .flip-card-inner {
            position: relative;
            width: 100%;
            height: 100%;
            transition: transform 0.6s cubic-bezier(0.23, 1, 0.32, 1);
            transform-style: preserve-3d;
            border-radius: var(--radius-card);
        }
        .flip-card:hover .flip-card-inner {
            transform: rotateY(180deg);
        }
        .flip-card-front,
        .flip-card-back {
            position: absolute;
            inset: 0;
            border-radius: var(--radius-card);
            backface-visibility: hidden;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 24px;
            border: 1px solid var(--border-light);
            background: var(--bg-card);
            backdrop-filter: blur(6px);
        }
        .flip-card-front .reward-icon {
            font-size: 3rem;
            color: var(--color-gold);
            margin-bottom: 14px;
        }
        .flip-card-front h4 {
            font-size: 1.15rem;
            font-weight: 700;
        }
        .flip-card-front p {
            color: var(--text-muted);
            font-size: 0.9rem;
            text-align: center;
        }
        .flip-card-back {
            transform: rotateY(180deg);
            background: linear-gradient(135deg, rgba(75, 59, 255, 0.15), rgba(124, 77, 255, 0.1));
            border-color: rgba(124, 77, 255, 0.3);
        }
        .flip-card-back .reward-detail {
            text-align: center;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .flip-card-back .reward-detail strong {
            color: var(--color-gold);
        }

        /* Steps */
        .steps-wrapper {
            display: flex;
            justify-content: center;
            gap: 0;
            position: relative;
            max-width: 900px;
            margin: 0 auto;
        }
        .steps-wrapper::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 15%;
            right: 15%;
            height: 2px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-gold), var(--color-primary));
            opacity: 0.4;
            z-index: 0;
        }
        .step-item {
            flex: 1;
            text-align: center;
            position: relative;
            z-index: 1;
            padding: 0 12px;
        }
        .step-item .step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            margin: 0 auto 16px auto;
            box-shadow: 0 0 24px rgba(75, 59, 255, 0.4);
            border: 2px solid rgba(255, 215, 0, 0.2);
        }
        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .step-item p {
            color: var(--text-muted);
            font-size: 0.88rem;
            margin: 0;
        }

        /* Latest News (CMS) */
        .news-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .news-card {
            display: flex;
            gap: 18px;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 18px;
            transition: all var(--transition-base);
            align-items: flex-start;
        }
        .news-card:hover {
            background: var(--bg-card-hover);
            transform: translateY(-3px);
            box-shadow: var(--shadow-glow);
            border-color: rgba(124, 77, 255, 0.25);
        }
        .news-card .news-thumb {
            width: 120px;
            height: 80px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--bg-input);
            border: 1px solid var(--border-light);
        }
        .news-card .news-body {
            flex: 1;
            min-width: 0;
        }
        .news-card .news-body .news-title {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.4;
        }
        .news-card .news-body .news-title a {
            color: var(--text-white);
            transition: color var(--transition-base);
        }
        .news-card .news-body .news-title a:hover {
            color: var(--color-gold);
        }
        .news-card .news-body .news-summary {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.5;
            margin-bottom: 8px;
        }
        .news-card .news-body .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.78rem;
            color: var(--text-muted);
        }
        .news-card .news-body .news-meta .cat-badge {
            background: rgba(255, 215, 0, 0.15);
            color: var(--color-gold);
            padding: 1px 10px;
            border-radius: var(--radius-btn);
            font-size: 0.72rem;
            font-weight: 500;
            border: 1px solid rgba(255, 215, 0, 0.2);
        }
        .news-card .news-body .news-meta .cat-badge a {
            color: var(--color-gold);
        }
        .empty-state {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px 24px;
            color: var(--text-muted);
            background: var(--bg-card);
            border-radius: var(--radius-card);
            border: 1px dashed var(--border-light);
        }
        .empty-state i {
            font-size: 2.4rem;
            margin-bottom: 12px;
            opacity: 0.5;
        }
        .empty-state p {
            font-size: 1rem;
            margin: 0;
        }

        /* FAQ */
        .faq-wrapper {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: rgba(124, 77, 255, 0.25);
        }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 22px;
            cursor: pointer;
            user-select: none;
            transition: background var(--transition-base);
        }
        .faq-question .q-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-gold);
            color: #000;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 0.85rem;
            flex-shrink: 0;
        }
        .faq-question .q-text {
            flex: 1;
            font-weight: 600;
            font-size: 1rem;
        }
        .faq-question .q-arrow {
            font-size: 1.2rem;
            color: var(--text-muted);
            transition: transform var(--transition-base);
        }
        .faq-item.open .faq-question .q-arrow {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 22px;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
            border-top: 0 solid var(--border-light);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 16px 22px 22px 22px;
            border-top-width: 1px;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, rgba(75, 59, 255, 0.08), rgba(124, 77, 255, 0.05));
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
            text-align: center;
            padding: 72px 24px;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: var(--text-light);
            max-width: 520px;
            margin: 0 auto 32px auto;
            font-size: 1.05rem;
        }
        .cta-section .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            color: #fff;
            border: none;
            padding: 16px 52px;
            border-radius: var(--radius-btn);
            font-size: 1.1rem;
            font-weight: 700;
            box-shadow: 0 8px 32px rgba(75, 59, 255, 0.45);
            transition: all var(--transition-base);
            cursor: pointer;
            text-decoration: none;
            animation: pulse-cta 2.4s infinite;
        }
        .cta-section .cta-btn:hover {
            transform: scale(1.05);
            box-shadow: 0 12px 40px rgba(75, 59, 255, 0.6);
            color: #fff;
            animation: none;
        }
        @keyframes pulse-cta {
            0%,
            100% {
                box-shadow: 0 8px 32px rgba(75, 59, 255, 0.45);
            }
            50% {
                box-shadow: 0 8px 48px rgba(75, 59, 255, 0.7);
            }
        }

        /* Footer */
        .footer-main {
            background: #070b14;
            border-top: 1px solid var(--border-light);
            padding: 56px 24px 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr;
            gap: 40px;
            max-width: 1200px;
            margin: 0 auto;
        }
        .footer-col .footer-logo {
            font-size: 1.4rem;
            font-weight: 800;
            background: linear-gradient(135deg, #fff, var(--color-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 12px;
        }
        .footer-col p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .footer-col .social-links {
            display: flex;
            gap: 12px;
        }
        .footer-col .social-links a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            font-size: 1.1rem;
            transition: all var(--transition-base);
        }
        .footer-col .social-links a:hover {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            transform: translateY(-3px);
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-white);
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: color var(--transition-base);
        }
        .footer-col ul li a:hover {
            color: var(--color-gold);
        }
        .footer-col .contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 10px;
        }
        .footer-col .contact-item i {
            width: 20px;
            color: var(--color-gold);
        }
        .footer-bottom {
            text-align: center;
            padding-top: 28px;
            margin-top: 32px;
            border-top: 1px solid var(--border-light);
            color: var(--text-muted);
            font-size: 0.82rem;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
        }

        /* Responsive */
        @media (max-width: 992px) {
            .navbar-main .nav-links {
                gap: 20px;
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .rewards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .game-intro-grid {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .game-intro-grid .intro-text .tag-list {
                justify-content: center;
            }
            .news-list {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero-section .hero-title {
                font-size: 2.6rem;
            }
        }

        @media (max-width: 768px) {
            .navbar-main .nav-links,
            .navbar-main .nav-actions {
                display: none;
            }
            .navbar-main {
                justify-content: center;
            }
            .mobile-bottom-tab {
                display: flex;
            }
            .hero-section {
                margin-top: 56px;
                min-height: 90vh;
                padding: 80px 16px 48px;
            }
            .hero-section .hero-title {
                font-size: 2rem;
            }
            .hero-section .hero-sub {
                font-size: 1rem;
            }
            .hero-section .hero-cta {
                padding: 14px 36px;
                font-size: 1rem;
            }
            .section-padding {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .features-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .rewards-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .steps-wrapper {
                flex-direction: column;
                gap: 28px;
                align-items: center;
            }
            .steps-wrapper::before {
                display: none;
            }
            .step-item {
                max-width: 280px;
            }
            .news-card {
                flex-direction: column;
            }
            .news-card .news-thumb {
                width: 100%;
                height: 140px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
                text-align: center;
            }
            .footer-col .social-links {
                justify-content: center;
            }
            .footer-col .contact-item {
                justify-content: center;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .cta-section .cta-btn {
                padding: 14px 36px;
                font-size: 1rem;
            }
            .faq-question {
                padding: 14px 16px;
            }
            .faq-question .q-text {
                font-size: 0.92rem;
            }
            .flip-card {
                height: 240px;
            }
            body {
                padding-bottom: 62px;
            }
        }

        @media (max-width: 576px) {
            .hero-section .hero-title {
                font-size: 1.7rem;
            }
            .hero-section .hero-sub {
                font-size: 0.92rem;
            }
            .hero-section .hero-cta {
                padding: 12px 28px;
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section-subtitle {
                font-size: 0.92rem;
                margin-bottom: 32px;
            }
            .container-custom {
                padding: 0 16px;
            }
            .news-card .news-thumb {
                height: 100px;
            }
            .footer-main {
                padding: 36px 16px 20px;
            }
        }

        /* Scroll reveal helper */
        .reveal {
            opacity: 0;
            transform: translateY(28px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }
        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --color-primary: #4B3BFF;
            --color-primary-light: #7C4DFF;
            --color-primary-dark: #3A2ECC;
            --color-gold: #FFD700;
            --color-gold-light: #FFED4A;
            --color-accent: #FF6B6B;
            --bg-dark: #0A0E1A;
            --bg-card: rgba(255, 255, 255, 0.05);
            --bg-card-hover: rgba(255, 255, 255, 0.09);
            --bg-elevated: #131829;
            --bg-input: #1E2335;
            --text-primary: #FFFFFF;
            --text-secondary: #E0E0E0;
            --text-muted: #A0A0B0;
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-light: rgba(255, 255, 255, 0.15);
            --radius-card: 16px;
            --radius-sm: 8px;
            --radius-xs: 4px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-glow: 0 0 20px rgba(124, 77, 255, 0.15);
            --shadow-glow-hover: 0 0 30px rgba(124, 77, 255, 0.3);
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --font-sans: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

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

        a {
            color: var(--color-primary-light);
            text-decoration: none;
            transition: var(--transition-base);
        }
        a:hover,
        a:focus {
            color: var(--color-gold);
            text-decoration: none;
        }
        a:focus-visible {
            outline: 2px solid var(--color-gold);
            outline-offset: 2px;
            border-radius: var(--radius-xs);
        }

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }

        ul,
        ol {
            list-style: none;
        }

        /* ===== Container ===== */
        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

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

        /* ===== Navigation ===== */
        .navbar-main {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1040;
            background: rgba(10, 14, 26, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 0 24px;
            height: 68px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: var(--transition-base);
        }

        .navbar-main.scrolled {
            background: rgba(10, 14, 26, 0.98);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }

        .nav-logo {
            font-size: 1.5rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--color-primary-light), var(--color-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: 0.5px;
            text-decoration: none;
            flex-shrink: 0;
        }
        .nav-logo:hover {
            opacity: 0.9;
            color: transparent;
            background: linear-gradient(135deg, var(--color-gold), var(--color-primary-light));
            -webkit-background-clip: text;
            background-clip: text;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            display: inline-block;
            padding: 8px 18px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 24px;
            transition: var(--transition-base);
            position: relative;
            text-decoration: none;
        }
        .nav-links li a:hover,
        .nav-links li a:focus {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-links li a.active {
            color: var(--color-gold);
            background: rgba(255, 215, 0, 0.08);
        }
        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--color-gold);
            border-radius: 2px;
        }

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

        .btn-login {
            background: transparent;
            border: 1px solid var(--border-light);
            color: var(--text-primary);
            padding: 8px 24px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition-base);
        }
        .btn-login:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.3);
        }

        .btn-register {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            border: none;
            color: #fff;
            padding: 8px 24px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            box-shadow: var(--shadow-glow);
            transition: var(--transition-base);
        }
        .btn-register:hover {
            transform: scale(1.04);
            box-shadow: var(--shadow-glow-hover);
        }

        /* Mobile bottom tab */
        .mobile-bottom-tab {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 60px;
            background: rgba(10, 14, 26, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--border-subtle);
            z-index: 1050;
            justify-content: space-around;
            align-items: center;
            padding: 0 8px;
        }
        .mobile-bottom-tab a {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            color: var(--text-muted);
            font-size: 0.65rem;
            text-decoration: none;
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            transition: var(--transition-base);
        }
        .mobile-bottom-tab a i {
            font-size: 1.2rem;
            transition: var(--transition-base);
        }
        .mobile-bottom-tab a.active {
            color: var(--color-gold);
        }
        .mobile-bottom-tab a.active i {
            color: var(--color-gold);
        }
        .mobile-bottom-tab a:hover {
            color: var(--text-primary);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-wrap {
            padding: 100px 0 20px 0;
            background: linear-gradient(180deg, rgba(10, 14, 26, 0.98) 0%, rgba(19, 24, 41, 0.9) 100%);
            border-bottom: 1px solid var(--border-subtle);
        }
        .breadcrumb-wrap .breadcrumb {
            background: transparent;
            padding: 0;
            margin: 0;
        }
        .breadcrumb-wrap .breadcrumb-item {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .breadcrumb-wrap .breadcrumb-item a {
            color: var(--color-primary-light);
        }
        .breadcrumb-wrap .breadcrumb-item a:hover {
            color: var(--color-gold);
        }
        .breadcrumb-wrap .breadcrumb-item.active {
            color: var(--text-secondary);
        }
        .breadcrumb-wrap .breadcrumb-item + .breadcrumb-item::before {
            color: var(--text-muted);
            content: '/';
        }

        /* ===== Article Header ===== */
        .article-header {
            padding: 0 0 40px 0;
            background: linear-gradient(180deg, rgba(19, 24, 41, 0.6) 0%, var(--bg-dark) 100%);
        }
        .article-header h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #fff 60%, var(--color-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            max-width: 900px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 30px;
            align-items: center;
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .article-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta .meta-item i {
            color: var(--color-primary-light);
        }
        .article-meta .category-badge {
            display: inline-block;
            background: rgba(255, 215, 0, 0.15);
            color: var(--color-gold);
            padding: 2px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
        }

        /* ===== Article Content ===== */
        .article-content-wrap {
            padding: 40px 0 60px;
        }
        .article-content-inner {
            max-width: 800px;
            margin: 0 auto;
        }
        #article-content {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-secondary);
        }
        #article-content h2,
        #article-content h3,
        #article-content h4 {
            color: var(--text-primary);
            margin-top: 2rem;
            margin-bottom: 1rem;
            font-weight: 700;
        }
        #article-content h2 {
            font-size: 1.6rem;
            border-bottom: 1px solid var(--border-subtle);
            padding-bottom: 0.5rem;
        }
        #article-content h3 {
            font-size: 1.3rem;
        }
        #article-content p {
            margin-bottom: 1.2rem;
        }
        #article-content ul,
        #article-content ol {
            margin-bottom: 1.2rem;
            padding-left: 1.5rem;
            list-style: disc;
        }
        #article-content li {
            margin-bottom: 0.4rem;
        }
        #article-content a {
            color: var(--color-primary-light);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        #article-content a:hover {
            color: var(--color-gold);
        }
        #article-content img {
            border-radius: var(--radius-card);
            margin: 1.5rem 0;
            box-shadow: var(--shadow-card);
        }
        #article-content blockquote {
            border-left: 4px solid var(--color-primary-light);
            padding: 0.8rem 1.2rem;
            margin: 1.5rem 0;
            background: rgba(75, 59, 255, 0.06);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-muted);
        }
        #article-content pre {
            background: var(--bg-elevated);
            border-radius: var(--radius-sm);
            padding: 1.2rem;
            overflow-x: auto;
            font-family: var(--font-mono);
            font-size: 0.9rem;
            border: 1px solid var(--border-subtle);
            margin: 1.5rem 0;
        }
        #article-content code {
            font-family: var(--font-mono);
            background: rgba(255, 255, 255, 0.06);
            padding: 2px 6px;
            border-radius: 4px;
            font-size: 0.9em;
        }

        /* Empty state */
        .article-empty {
            text-align: center;
            padding: 80px 20px;
        }
        .article-empty i {
            font-size: 3rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            display: block;
        }
        .article-empty h3 {
            font-size: 1.4rem;
            color: var(--text-secondary);
            margin-bottom: 12px;
        }
        .article-empty p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .btn-back-home {
            display: inline-block;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            color: #fff;
            padding: 12px 36px;
            border-radius: 24px;
            font-weight: 600;
            transition: var(--transition-base);
            text-decoration: none;
        }
        .btn-back-home:hover {
            transform: scale(1.04);
            box-shadow: var(--shadow-glow-hover);
            color: #fff;
        }

        /* ===== Related Articles ===== */
        .related-section {
            padding: 60px 0;
            border-top: 1px solid var(--border-subtle);
            background: rgba(19, 24, 41, 0.3);
        }
        .related-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 40px;
            text-align: center;
            color: var(--text-primary);
        }
        .related-section h2 span {
            background: linear-gradient(135deg, var(--color-primary-light), var(--color-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            transition: var(--transition-base);
            text-decoration: none;
            display: block;
        }
        .related-card:hover {
            transform: translateY(-4px);
            background: var(--bg-card-hover);
            border-color: rgba(124, 77, 255, 0.2);
            box-shadow: var(--shadow-card), var(--shadow-glow);
        }
        .related-card .thumb {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }
        .related-card .info {
            padding: 18px 20px 20px;
        }
        .related-card .info h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .info p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .info .meta-sm {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 10px;
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* ===== Back Button ===== */
        .back-action {
            text-align: center;
            padding: 30px 0 10px;
        }
        .back-action .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 1px solid var(--border-light);
            color: var(--text-secondary);
            padding: 10px 32px;
            border-radius: 24px;
            font-size: 0.95rem;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
        }
        .back-action .btn-back:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--color-primary-light);
            color: var(--text-primary);
        }

        /* ===== Footer ===== */
        .footer-main {
            background: #0A0E1A;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 60px 0 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 40px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-col .footer-logo {
            font-size: 1.6rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--color-primary-light), var(--color-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 12px;
        }
        .footer-col p {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.7;
            margin-bottom: 16px;
            max-width: 360px;
        }
        .social-links {
            display: flex;
            gap: 12px;
        }
        .social-links a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-secondary);
            font-size: 1.1rem;
            transition: var(--transition-base);
            text-decoration: none;
            border: 1px solid var(--border-subtle);
        }
        .social-links a:hover {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            transform: scale(1.1);
        }
        .footer-col h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.88rem;
            transition: var(--transition-base);
            text-decoration: none;
        }
        .footer-col ul li a:hover {
            color: var(--color-primary-light);
            padding-left: 4px;
        }
        .contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-muted);
            font-size: 0.88rem;
            margin-bottom: 10px;
        }
        .contact-item i {
            width: 16px;
            color: var(--color-primary-light);
        }
        .footer-bottom {
            text-align: center;
            padding: 24px 24px;
            margin-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            color: var(--text-muted);
            font-size: 0.8rem;
        }

        /* ===== Responsive ===== */
        @media (max-width: 992px) {
            .nav-links {
                gap: 4px;
            }
            .nav-links li a {
                padding: 6px 14px;
                font-size: 0.85rem;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            .navbar-main {
                height: 60px;
                padding: 0 16px;
            }
            .nav-links {
                display: none;
            }
            .nav-actions .btn-login,
            .nav-actions .btn-register {
                padding: 6px 16px;
                font-size: 0.8rem;
            }
            .mobile-bottom-tab {
                display: flex;
            }
            .breadcrumb-wrap {
                padding: 80px 0 16px 0;
            }
            .article-header h1 {
                font-size: 1.6rem;
            }
            .article-meta {
                gap: 12px 20px;
                font-size: 0.8rem;
            }
            .article-content-wrap {
                padding: 24px 0 40px;
            }
            #article-content {
                font-size: 0.98rem;
                line-height: 1.7;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .related-section h2 {
                font-size: 1.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                padding: 0 16px;
            }
            .footer-col p {
                max-width: 100%;
            }
            body {
                padding-bottom: 60px;
            }
        }

        @media (max-width: 576px) {
            .nav-actions .btn-login {
                display: none;
            }
            .article-header h1 {
                font-size: 1.35rem;
            }
            .container-custom {
                padding: 0 12px;
            }
            .related-card .thumb {
                height: 140px;
            }
        }

        @media (min-width: 769px) {
            .mobile-bottom-tab {
                display: none !important;
            }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #4B3BFF;
            --color-primary-light: #7C4DFF;
            --color-primary-dark: #3A2AD8;
            --color-gold: #FFD700;
            --color-gold-light: #FFED4A;
            --color-dark: #0A0E1A;
            --color-dark-card: #131829;
            --color-dark-surface: #1A1F35;
            --color-text: #FFFFFF;
            --color-text-secondary: #E0E0E0;
            --color-text-muted: #A0A4B8;
            --color-border: rgba(255, 255, 255, 0.08);
            --color-border-light: rgba(255, 255, 255, 0.15);
            --radius-card: 16px;
            --radius-sm: 8px;
            --radius-pill: 24px;
            --shadow-card: drop-shadow(0 8px 32px rgba(0, 0, 0, 0.4));
            --shadow-glow: 0 0 20px rgba(124, 77, 255, 0.15);
            --shadow-glow-hover: 0 0 40px rgba(124, 77, 255, 0.3);
            --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --spacing-section: 5rem;
            --spacing-section-mobile: 3rem;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: var(--color-dark);
            color: var(--color-text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--color-gold);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--color-gold-light);
        }
        a:focus-visible {
            outline: 2px solid var(--color-gold);
            outline-offset: 4px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
        }
        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        /* ===== Container ===== */
        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        @media (min-width: 768px) {
            .container-custom {
                padding: 0 2rem;
            }
        }
        @media (min-width: 1200px) {
            .container-custom {
                padding: 0 2.5rem;
            }
        }

        /* ===== Typography ===== */
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: var(--color-text);
        }
        h1 {
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 2rem;
            margin-bottom: 1.5rem;
            position: relative;
        }
        h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-gold));
            border-radius: 2px;
            margin-top: 0.6rem;
        }
        h3 {
            font-size: 1.3rem;
            font-weight: 600;
        }
        p {
            color: var(--color-text-secondary);
            margin-bottom: 1rem;
        }
        .text-muted {
            color: var(--color-text-muted) !important;
        }
        .text-gold {
            color: var(--color-gold);
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h2::after {
                width: 40px;
                height: 3px;
            }
            h3 {
                font-size: 1.1rem;
            }
        }

        /* ===== Navigation ===== */
        .navbar-main {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 14, 26, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--color-border);
            padding: 0 1.5rem;
            height: 70px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: background var(--transition-base);
        }
        .navbar-main .nav-logo {
            font-size: 1.4rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--color-primary-light), var(--color-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.01em;
            text-decoration: none;
            white-space: nowrap;
        }
        .navbar-main .nav-logo:hover {
            opacity: 0.9;
        }
        .navbar-main .nav-links {
            display: flex;
            align-items: center;
            gap: 1.8rem;
        }
        .navbar-main .nav-links li a {
            color: var(--color-text-secondary);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 0.3rem 0;
            position: relative;
            transition: color var(--transition-base);
            text-decoration: none;
        }
        .navbar-main .nav-links li a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-gold);
            transition: width var(--transition-base);
            border-radius: 1px;
        }
        .navbar-main .nav-links li a:hover {
            color: var(--color-text);
        }
        .navbar-main .nav-links li a:hover::after {
            width: 100%;
        }
        .navbar-main .nav-links li a.active {
            color: var(--color-gold);
        }
        .navbar-main .nav-links li a.active::after {
            width: 100%;
            background: var(--color-gold);
        }
        .navbar-main .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        .navbar-main .nav-actions .btn-login,
        .navbar-main .nav-actions .btn-register {
            padding: 0.5rem 1.4rem;
            border-radius: var(--radius-pill);
            font-size: 0.9rem;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
        }
        .navbar-main .nav-actions .btn-login {
            background: transparent;
            color: var(--color-text-secondary);
            border: 1px solid var(--color-border-light);
        }
        .navbar-main .nav-actions .btn-login:hover {
            background: rgba(255, 255, 255, 0.08);
            color: var(--color-text);
            border-color: rgba(255, 255, 255, 0.3);
        }
        .navbar-main .nav-actions .btn-register {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            color: #fff;
            box-shadow: 0 4px 20px rgba(75, 59, 255, 0.3);
        }
        .navbar-main .nav-actions .btn-register:hover {
            transform: scale(1.04);
            box-shadow: 0 6px 30px rgba(75, 59, 255, 0.5);
        }
        .navbar-main .nav-actions .btn-register:active {
            transform: scale(0.97);
        }

        /* 移动端底部导航 */
        .bottom-tab {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: rgba(10, 14, 26, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--color-border);
            z-index: 1000;
            justify-content: space-around;
            align-items: center;
            padding: 0 0.5rem;
        }
        .bottom-tab .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            color: var(--color-text-muted);
            font-size: 0.65rem;
            text-decoration: none;
            padding: 0.3rem 0.6rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-base);
        }
        .bottom-tab .tab-item i {
            font-size: 1.2rem;
            transition: color var(--transition-base);
        }
        .bottom-tab .tab-item:hover {
            color: var(--color-text-secondary);
        }
        .bottom-tab .tab-item.active {
            color: var(--color-gold);
        }
        .bottom-tab .tab-item.active i {
            color: var(--color-gold);
        }

        @media (max-width: 768px) {
            .navbar-main .nav-links,
            .navbar-main .nav-actions {
                display: none;
            }
            .navbar-main {
                height: 60px;
                padding: 0 1rem;
            }
            .bottom-tab {
                display: flex;
            }
            body {
                padding-bottom: 60px;
            }
        }

        /* ===== Hero ===== */
        .hero-section {
            padding: 8rem 0 4rem;
            background: linear-gradient(135deg, #0A0E1A 0%, #1A0A2E 50%, #0A0E1A 100%);
            position: relative;
            overflow: hidden;
            min-height: 70vh;
            display: flex;
            align-items: center;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.2;
            animation: heroParallax 30s infinite alternate ease-in-out;
        }
        @keyframes heroParallax {
            0% {
                transform: scale(1) translate(0, 0);
            }
            100% {
                transform: scale(1.08) translate(-10px, -10px);
            }
        }
        .hero-section .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(75, 59, 255, 0.15), transparent 70%);
        }
        .hero-section .container-custom {
            position: relative;
            z-index: 2;
        }
        .hero-section .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid rgba(255, 215, 0, 0.25);
            padding: 0.35rem 1rem;
            border-radius: var(--radius-pill);
            font-size: 0.8rem;
            color: var(--color-gold);
            margin-bottom: 1.2rem;
        }
        .hero-section .hero-badge i {
            font-size: 0.7rem;
        }
        .hero-section h1 {
            font-size: 3.2rem;
            font-weight: 900;
            background: linear-gradient(135deg, #FFFFFF 0%, var(--color-gold) 70%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 1rem;
            max-width: 800px;
        }
        .hero-section .hero-sub {
            font-size: 1.2rem;
            color: var(--color-text-secondary);
            max-width: 600px;
            margin-bottom: 1.8rem;
            line-height: 1.7;
        }
        .hero-section .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            align-items: center;
        }
        .hero-section .hero-actions .btn-primary-custom {
            padding: 0.8rem 2.4rem;
            border-radius: var(--radius-pill);
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            box-shadow: 0 4px 24px rgba(75, 59, 255, 0.35);
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            text-decoration: none;
        }
        .hero-section .hero-actions .btn-primary-custom:hover {
            transform: scale(1.05);
            box-shadow: 0 8px 40px rgba(75, 59, 255, 0.55);
        }
        .hero-section .hero-actions .btn-primary-custom:active {
            transform: scale(0.97);
        }
        .hero-section .hero-actions .btn-secondary-custom {
            padding: 0.8rem 2rem;
            border-radius: var(--radius-pill);
            background: transparent;
            color: var(--color-text-secondary);
            border: 1px solid var(--color-border-light);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition-base);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .hero-section .hero-actions .btn-secondary-custom:hover {
            background: rgba(255, 255, 255, 0.08);
            color: var(--color-text);
            border-color: rgba(255, 255, 255, 0.3);
        }
        .hero-section .hero-stats {
            display: flex;
            gap: 2.5rem;
            margin-top: 2.5rem;
            flex-wrap: wrap;
        }
        .hero-section .hero-stats .stat-item {
            text-align: center;
        }
        .hero-section .hero-stats .stat-item .stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--color-gold);
        }
        .hero-section .hero-stats .stat-item .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-muted);
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 6rem 0 3rem;
                min-height: auto;
            }
            .hero-section h1 {
                font-size: 2rem;
            }
            .hero-section .hero-sub {
                font-size: 1rem;
            }
            .hero-section .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-section .hero-actions .btn-primary-custom,
            .hero-section .hero-actions .btn-secondary-custom {
                justify-content: center;
                text-align: center;
            }
            .hero-section .hero-stats {
                gap: 1.5rem;
                justify-content: center;
            }
            .hero-section .hero-stats .stat-item .stat-number {
                font-size: 1.4rem;
            }
        }

        /* ===== Section General ===== */
        .section-block {
            padding: var(--spacing-section) 0;
        }
        .section-block-alt {
            background: var(--color-dark-card);
        }
        .section-block-dark {
            background: #05080F;
        }
        .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-title h2 {
            display: inline-block;
        }
        .section-title h2::after {
            margin-left: auto;
            margin-right: auto;
        }
        .section-title p {
            max-width: 600px;
            margin: 1rem auto 0;
            font-size: 1.05rem;
        }
        @media (max-width: 768px) {
            .section-block {
                padding: var(--spacing-section-mobile) 0;
            }
            .section-title {
                margin-bottom: 2rem;
            }
        }

        /* ===== Cards Grid ===== */
        .card-grid {
            display: grid;
            gap: 1.5rem;
        }
        .card-grid-3 {
            grid-template-columns: repeat(3, 1fr);
        }
        .card-grid-2 {
            grid-template-columns: repeat(2, 1fr);
        }
        .card-grid-4 {
            grid-template-columns: repeat(4, 1fr);
        }
        @media (max-width: 992px) {
            .card-grid-3,
            .card-grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .card-grid-2,
            .card-grid-3,
            .card-grid-4 {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Card Custom ===== */
        .card-custom {
            background: var(--color-dark-card);
            border-radius: var(--radius-card);
            padding: 1.8rem;
            border: 1px solid var(--color-border);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-glow);
        }
        .card-custom::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-gold));
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .card-custom:hover {
            transform: translateY(-4px);
            border-color: rgba(255, 215, 0, 0.2);
            box-shadow: var(--shadow-glow-hover);
        }
        .card-custom:hover::before {
            opacity: 1;
        }
        .card-custom .card-icon {
            width: 50px;
            height: 50px;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(75, 59, 255, 0.15), rgba(124, 77, 255, 0.1));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--color-gold);
            margin-bottom: 1.2rem;
        }
        .card-custom .card-img {
            border-radius: var(--radius-sm);
            overflow: hidden;
            margin-bottom: 1.2rem;
            aspect-ratio: 16 / 9;
            background: var(--color-dark-surface);
        }
        .card-custom .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .card-custom:hover .card-img img {
            transform: scale(1.05);
        }
        .card-custom h3 {
            margin-bottom: 0.6rem;
            font-size: 1.15rem;
        }
        .card-custom p {
            font-size: 0.92rem;
            color: var(--color-text-muted);
            margin-bottom: 0;
        }
        .card-custom .card-tag {
            display: inline-block;
            background: rgba(255, 215, 0, 0.12);
            color: var(--color-gold);
            font-size: 0.7rem;
            padding: 0.2rem 0.7rem;
            border-radius: var(--radius-pill);
            margin-bottom: 0.8rem;
            font-weight: 600;
        }
        .card-custom .card-link {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            color: var(--color-primary-light);
            font-weight: 600;
            font-size: 0.9rem;
            margin-top: 1rem;
            transition: gap var(--transition-base);
        }
        .card-custom .card-link:hover {
            gap: 0.6rem;
            color: var(--color-gold);
        }

        /* ===== 攻略分类板块 ===== */
        .guide-categories {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 1.5rem;
        }
        .guide-cat-item {
            background: var(--color-dark-card);
            border-radius: var(--radius-card);
            padding: 2rem 1.5rem;
            border: 1px solid var(--color-border);
            text-align: center;
            transition: all var(--transition-base);
            cursor: default;
        }
        .guide-cat-item:hover {
            transform: translateY(-3px);
            border-color: rgba(255, 215, 0, 0.15);
            box-shadow: var(--shadow-glow-hover);
        }
        .guide-cat-item .cat-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(75, 59, 255, 0.2), rgba(124, 77, 255, 0.1));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.2rem;
            font-size: 1.6rem;
            color: var(--color-gold);
        }
        .guide-cat-item h3 {
            font-size: 1.1rem;
            margin-bottom: 0.5rem;
        }
        .guide-cat-item p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            margin-bottom: 0;
        }

        /* ===== 流程步骤 ===== */
        .steps-flow {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1.5rem;
            position: relative;
            counter-reset: step;
        }
        .steps-flow .step-item {
            flex: 1;
            min-width: 180px;
            max-width: 240px;
            text-align: center;
            position: relative;
            counter-increment: step;
        }
        .steps-flow .step-item::before {
            content: counter(step);
            display: block;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            color: #fff;
            font-size: 1.2rem;
            font-weight: 800;
            line-height: 48px;
            margin: 0 auto 1rem;
            box-shadow: 0 4px 20px rgba(75, 59, 255, 0.3);
        }
        .steps-flow .step-item .step-label {
            font-weight: 600;
            color: var(--color-text);
            font-size: 0.95rem;
        }
        .steps-flow .step-item .step-desc {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            margin-top: 0.3rem;
        }
        .steps-flow .step-item:not(:last-child)::after {
            content: '';
            position: absolute;
            top: 24px;
            right: -1.2rem;
            width: 1.8rem;
            height: 2px;
            background: linear-gradient(90deg, var(--color-primary-light), transparent);
        }
        @media (max-width: 768px) {
            .steps-flow {
                flex-direction: column;
                align-items: center;
            }
            .steps-flow .step-item {
                max-width: 300px;
            }
            .steps-flow .step-item:not(:last-child)::after {
                display: none;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        .faq-item {
            background: var(--color-dark-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: border-color var(--transition-base);
        }
        .faq-item:hover {
            border-color: rgba(255, 215, 0, 0.1);
        }
        .faq-item .faq-question {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            padding: 1.2rem 1.5rem;
            cursor: pointer;
            user-select: none;
            transition: background var(--transition-base);
        }
        .faq-item .faq-question:hover {
            background: rgba(255, 255, 255, 0.02);
        }
        .faq-item .faq-question .faq-q-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(255, 215, 0, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-gold);
            font-size: 0.75rem;
            font-weight: 700;
            flex-shrink: 0;
        }
        .faq-item .faq-question .faq-q-text {
            flex: 1;
            font-weight: 600;
            color: var(--color-text);
            font-size: 0.95rem;
        }
        .faq-item .faq-question .faq-toggle {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question .faq-toggle {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 1.5rem;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 1.5rem 1.2rem;
        }
        .faq-item .faq-answer p {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            margin-bottom: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-dark-card), #1A0A2E);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .cta-box {
            text-align: center;
            padding: 3rem 2rem;
            border-radius: var(--radius-card);
            background: radial-gradient(ellipse at 50% 0%, rgba(75, 59, 255, 0.08), transparent 70%);
        }
        .cta-box h2 {
            font-size: 2rem;
            margin-bottom: 0.8rem;
        }
        .cta-box h2::after {
            margin-left: auto;
            margin-right: auto;
        }
        .cta-box p {
            max-width: 560px;
            margin: 0 auto 1.8rem;
            font-size: 1.05rem;
        }
        .cta-box .btn-cta {
            padding: 0.9rem 3rem;
            border-radius: var(--radius-pill);
            background: linear-gradient(135deg, var(--color-gold), #E6B800);
            color: #0A0E1A;
            font-weight: 800;
            font-size: 1.05rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            box-shadow: 0 4px 30px rgba(255, 215, 0, 0.3);
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            text-decoration: none;
            animation: pulseGlow 2s infinite;
        }
        @keyframes pulseGlow {
            0%,
            100% {
                box-shadow: 0 4px 30px rgba(255, 215, 0, 0.3);
            }
            50% {
                box-shadow: 0 8px 50px rgba(255, 215, 0, 0.5);
            }
        }
        .cta-box .btn-cta:hover {
            transform: scale(1.06);
            box-shadow: 0 8px 50px rgba(255, 215, 0, 0.6);
        }
        .cta-box .btn-cta:active {
            transform: scale(0.97);
        }
        @media (max-width: 768px) {
            .cta-box h2 {
                font-size: 1.5rem;
            }
            .cta-box p {
                font-size: 0.95rem;
            }
            .cta-box .btn-cta {
                padding: 0.8rem 2rem;
                font-size: 0.95rem;
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== Footer ===== */
        .footer-main {
            background: #05080F;
            padding: 4rem 0 0;
            border-top: 1px solid var(--color-border);
        }
        .footer-main .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1.2fr;
            gap: 2.5rem;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .footer-main .footer-col h4 {
            color: var(--color-text);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1.2rem;
        }
        .footer-main .footer-col p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            margin-bottom: 1.2rem;
            line-height: 1.7;
        }
        .footer-main .footer-logo {
            font-size: 1.3rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--color-primary-light), var(--color-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 0.8rem;
        }
        .footer-main .social-links {
            display: flex;
            gap: 0.8rem;
            flex-wrap: wrap;
        }
        .footer-main .social-links a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text-muted);
            font-size: 1.1rem;
            transition: all var(--transition-base);
            border: 1px solid var(--color-border);
            text-decoration: none;
        }
        .footer-main .social-links a:hover {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            transform: translateY(-2px);
        }
        .footer-main .footer-col ul li {
            margin-bottom: 0.6rem;
        }
        .footer-main .footer-col ul li a {
            color: var(--color-text-muted);
            font-size: 0.88rem;
            transition: color var(--transition-base);
            text-decoration: none;
        }
        .footer-main .footer-col ul li a:hover {
            color: var(--color-gold);
        }
        .footer-main .contact-item {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            color: var(--color-text-muted);
            font-size: 0.88rem;
            margin-bottom: 0.6rem;
        }
        .footer-main .contact-item i {
            width: 20px;
            color: var(--color-primary-light);
        }
        .footer-main .footer-bottom {
            border-top: 1px solid var(--color-border);
            margin-top: 3rem;
            padding: 1.5rem 1.5rem;
            text-align: center;
            font-size: 0.82rem;
            color: var(--color-text-muted);
        }
        .footer-main .footer-bottom a {
            color: var(--color-text-muted);
            text-decoration: none;
        }
        .footer-main .footer-bottom a:hover {
            color: var(--color-gold);
        }
        @media (max-width: 768px) {
            .footer-main .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
                text-align: center;
            }
            .footer-main .social-links {
                justify-content: center;
            }
            .footer-main .contact-item {
                justify-content: center;
            }
        }

        /* ===== 装饰粒子（纯CSS） ===== */
        .particles-bg {
            position: absolute;
            inset: 0;
            overflow: hidden;
            pointer-events: none;
            z-index: 1;
        }
        .particles-bg span {
            position: absolute;
            width: 3px;
            height: 3px;
            background: rgba(255, 215, 0, 0.2);
            border-radius: 50%;
            animation: floatParticle 20s infinite linear;
        }
        .particles-bg span:nth-child(1) {
            top: 10%;
            left: 5%;
            animation-duration: 22s;
            animation-delay: 0s;
        }
        .particles-bg span:nth-child(2) {
            top: 30%;
            left: 80%;
            width: 5px;
            height: 5px;
            animation-duration: 18s;
            animation-delay: 2s;
        }
        .particles-bg span:nth-child(3) {
            top: 60%;
            left: 15%;
            animation-duration: 25s;
            animation-delay: 4s;
        }
        .particles-bg span:nth-child(4) {
            top: 80%;
            left: 70%;
            width: 4px;
            height: 4px;
            animation-duration: 20s;
            animation-delay: 1s;
        }
        .particles-bg span:nth-child(5) {
            top: 45%;
            left: 50%;
            animation-duration: 28s;
            animation-delay: 3s;
        }
        .particles-bg span:nth-child(6) {
            top: 15%;
            left: 35%;
            width: 2px;
            height: 2px;
            animation-duration: 16s;
            animation-delay: 5s;
        }
        @keyframes floatParticle {
            0% {
                transform: translateY(0) translateX(0) scale(1);
                opacity: 0.2;
            }
            50% {
                transform: translateY(-120px) translateX(60px) scale(1.5);
                opacity: 0.6;
            }
            100% {
                transform: translateY(-240px) translateX(-30px) scale(0.8);
                opacity: 0;
            }
        }

        /* ===== 滚动渐入动画 ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== 辅助 ===== */
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }
        .gap-1 {
            gap: 1rem;
        }
        .text-center {
            text-align: center;
        }
        .d-flex {
            display: flex;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }
        .align-center {
            align-items: center;
        }
        .justify-center {
            justify-content: center;
        }

        /* ===== 空状态（保留备用） ===== */
        .empty-state {
            text-align: center;
            padding: 4rem 2rem;
            color: var(--color-text-muted);
        }
        .empty-state i {
            font-size: 3rem;
            margin-bottom: 1rem;
            opacity: 0.3;
        }
        .empty-state p {
            font-size: 1rem;
        }

        /* ===== 图片圆角辅助 ===== */
        .img-radius {
            border-radius: var(--radius-sm);
        }
        .img-radius-card {
            border-radius: var(--radius-card);
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #4B3BFF;
            --color-primary-light: #7C4DFF;
            --color-primary-dark: #3528CC;
            --color-gold: #FFD700;
            --color-gold-light: #FFED4A;
            --color-gold-dark: #D4A800;
            --color-dark-bg: #0A0E1A;
            --color-dark-card: #131829;
            --color-dark-card-hover: #1A1F35;
            --color-dark-overlay: rgba(10, 14, 26, 0.85);
            --color-text-white: #FFFFFF;
            --color-text-light: #E0E0E0;
            --color-text-muted: #8A8FA8;
            --color-border: rgba(255, 255, 255, 0.08);
            --color-border-light: rgba(255, 255, 255, 0.15);
            --radius-card: 16px;
            --radius-btn: 24px;
            --radius-sm: 8px;
            --shadow-card: drop-shadow(0 8px 32px rgba(0, 0, 0, 0.4));
            --shadow-card-hover: drop-shadow(0 12px 40px rgba(0, 0, 0, 0.6));
            --glow-primary: 0 0 20px rgba(75, 59, 255, 0.25);
            --glow-gold: 0 0 20px rgba(255, 215, 0, 0.2);
            --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'PingFang SC', 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background-color: var(--color-dark-bg);
            color: var(--color-text-white);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--color-text-white);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--color-gold);
        }
        a:focus-visible {
            outline: 2px solid var(--color-gold);
            outline-offset: 2px;
        }

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

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }

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

        /* ===== Container ===== */
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

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

        /* ===== Typography ===== */
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-text-white);
        }

        .text-gold {
            color: var(--color-gold);
        }
        .text-primary-light {
            color: var(--color-primary-light);
        }
        .text-muted-custom {
            color: var(--color-text-muted);
        }

        /* ===== Header / Nav ===== */
        .navbar-main {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 40px;
            height: 72px;
            background: rgba(10, 14, 26, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--color-border);
            transition: background var(--transition-base);
        }

        .nav-logo {
            font-size: 22px;
            font-weight: 800;
            background: linear-gradient(135deg, var(--color-primary-light), var(--color-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }
        .nav-logo:hover {
            opacity: 0.9;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            padding: 8px 18px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-light);
            transition: all var(--transition-base);
            position: relative;
        }
        .nav-links li a:hover {
            color: var(--color-text-white);
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-links li a.active {
            color: var(--color-gold);
            background: rgba(255, 215, 0, 0.08);
        }
        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-gold);
            border-radius: 2px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .btn-login {
            background: transparent;
            color: var(--color-text-light);
            padding: 8px 20px;
            border-radius: var(--radius-btn);
            font-weight: 500;
            font-size: 14px;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .btn-login:hover {
            background: rgba(255, 255, 255, 0.08);
            color: var(--color-text-white);
            border-color: rgba(255, 255, 255, 0.3);
        }
        .btn-register {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            color: #fff;
            padding: 8px 22px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14px;
            box-shadow: var(--glow-primary);
            transition: all var(--transition-base);
            cursor: pointer;
            border: none;
        }
        .btn-register:hover {
            transform: scale(1.04);
            box-shadow: 0 0 30px rgba(75, 59, 255, 0.4);
        }
        .btn-register:active {
            transform: scale(0.97);
        }

        /* ===== Mobile Bottom Tab ===== */
        .mobile-tab-bar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1060;
            height: 60px;
            background: rgba(10, 14, 26, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--color-border);
            padding: 0 8px;
            align-items: center;
            justify-content: space-around;
        }
        .mobile-tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2px;
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            color: var(--color-text-muted);
            font-size: 11px;
            font-weight: 500;
            transition: all var(--transition-base);
            cursor: pointer;
            text-decoration: none;
            min-width: 56px;
        }
        .mobile-tab-item i {
            font-size: 20px;
            transition: color var(--transition-base);
        }
        .mobile-tab-item span {
            font-size: 10px;
            line-height: 1.2;
        }
        .mobile-tab-item:hover {
            color: var(--color-text-light);
        }
        .mobile-tab-item.active {
            color: var(--color-gold);
        }
        .mobile-tab-item.active i {
            color: var(--color-gold);
        }

        /* ===== Hero / Banner ===== */
        .category-banner {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 120px 24px 80px;
            background: linear-gradient(135deg, #0A0E1A 0%, #1A0A30 50%, #0A0E1A 100%);
            overflow: hidden;
        }
        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.25;
            mix-blend-mode: overlay;
            animation: bgPulse 12s ease-in-out infinite alternate;
        }
        .category-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 100%, rgba(75, 59, 255, 0.15) 0%, transparent 70%);
        }
        @keyframes bgPulse {
            0% {
                opacity: 0.2;
                transform: scale(1);
            }
            100% {
                opacity: 0.35;
                transform: scale(1.05);
            }
        }
        .category-banner-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
        }
        .category-banner h1 {
            font-size: 3.2rem;
            font-weight: 900;
            margin-bottom: 16px;
            background: linear-gradient(135deg, var(--color-gold), #FFA500, var(--color-gold-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: 1px;
        }
        .category-banner .banner-sub {
            font-size: 1.2rem;
            color: var(--color-text-light);
            max-width: 640px;
            margin: 0 auto 28px;
            line-height: 1.8;
            opacity: 0.9;
        }
        .category-banner .banner-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            color: #fff;
            padding: 14px 44px;
            border-radius: var(--radius-btn);
            font-size: 18px;
            font-weight: 700;
            box-shadow: var(--glow-primary);
            transition: all var(--transition-base);
            cursor: pointer;
            border: none;
        }
        .category-banner .banner-cta:hover {
            transform: scale(1.05);
            box-shadow: 0 0 40px rgba(75, 59, 255, 0.5);
        }
        .category-banner .banner-cta i {
            font-size: 20px;
        }

        @media (max-width: 768px) {
            .category-banner {
                min-height: 320px;
                padding: 100px 16px 60px;
            }
            .category-banner h1 {
                font-size: 2.2rem;
            }
            .category-banner .banner-sub {
                font-size: 1rem;
            }
            .category-banner .banner-cta {
                padding: 12px 32px;
                font-size: 16px;
            }
        }

        /* ===== Section通用 ===== */
        .section-padding {
            padding: 80px 0;
        }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 12px;
            position: relative;
            display: inline-block;
        }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--color-gold), var(--color-primary-light));
            border-radius: 2px;
            margin: 12px auto 0;
        }
        .section-title p {
            color: var(--color-text-muted);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto;
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 50px 0;
            }
            .section-title h2 {
                font-size: 1.7rem;
            }
        }

        /* ===== 活动亮点卡片 ===== */
        .highlight-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        @media (max-width: 992px) {
            .highlight-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .highlight-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        .highlight-card {
            background: var(--color-dark-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            text-align: center;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .highlight-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-gold));
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .highlight-card:hover {
            transform: translateY(-6px);
            background: var(--color-dark-card-hover);
            border-color: rgba(255, 255, 255, 0.15);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
        }
        .highlight-card:hover::before {
            opacity: 1;
        }
        .highlight-card .icon-wrap {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            border-radius: 50%;
            background: rgba(75, 59, 255, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: var(--color-gold);
            transition: all var(--transition-base);
        }
        .highlight-card:hover .icon-wrap {
            background: rgba(75, 59, 255, 0.25);
            transform: scale(1.08);
        }
        .highlight-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .highlight-card p {
            color: var(--color-text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            margin: 0;
        }

        /* ===== 活动列表 ===== */
        .activity-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        @media (max-width: 768px) {
            .activity-grid {
                grid-template-columns: 1fr;
            }
        }
        .activity-card {
            background: var(--color-dark-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .activity-card:hover {
            transform: translateY(-4px);
            border-color: rgba(255, 255, 255, 0.12);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.45);
        }
        .activity-card .card-img {
            height: 180px;
            background: var(--color-dark-card-hover);
            position: relative;
            overflow: hidden;
        }
        .activity-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .activity-card:hover .card-img img {
            transform: scale(1.06);
        }
        .activity-card .card-img .badge-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--color-gold);
            color: #0A0E1A;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 20px;
            letter-spacing: 0.3px;
        }
        .activity-card .card-img .badge-hot {
            background: #FF3B3B;
            color: #fff;
        }
        .activity-card .card-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .activity-card .card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .activity-card .card-body p {
            color: var(--color-text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            margin-bottom: 14px;
            flex: 1;
        }
        .activity-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            color: var(--color-text-muted);
            font-size: 0.85rem;
        }
        .activity-card .card-meta .meta-time i {
            margin-right: 4px;
        }
        .activity-card .card-meta .btn-join {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            color: #fff;
            padding: 6px 20px;
            border-radius: var(--radius-btn);
            font-size: 13px;
            font-weight: 600;
            transition: all var(--transition-base);
            border: none;
            cursor: pointer;
        }
        .activity-card .card-meta .btn-join:hover {
            transform: scale(1.05);
            box-shadow: 0 0 20px rgba(75, 59, 255, 0.3);
        }

        /* ===== 步骤流程 ===== */
        .steps-section {
            background: linear-gradient(180deg, var(--color-dark-bg) 0%, #0D0E1A 50%, var(--color-dark-bg) 100%);
            position: relative;
        }
        .steps-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--color-border-light), transparent);
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step-counter;
            position: relative;
        }
        .steps-grid::before {
            content: '';
            position: absolute;
            top: 44px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-gold), var(--color-primary-light));
            opacity: 0.3;
            z-index: 0;
        }
        @media (max-width: 992px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid::before {
                display: none;
            }
        }
        @media (max-width: 576px) {
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        .step-item {
            text-align: center;
            position: relative;
            z-index: 1;
            padding: 0 8px;
        }
        .step-item .step-num {
            width: 56px;
            height: 56px;
            margin: 0 auto 16px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            box-shadow: 0 0 24px rgba(75, 59, 255, 0.3);
            position: relative;
        }
        .step-item .step-num::after {
            content: '';
            position: absolute;
            inset: -4px;
            border-radius: 50%;
            border: 2px solid rgba(255, 215, 0, 0.2);
            animation: pulseRing 2s ease-in-out infinite;
        }
        @keyframes pulseRing {
            0%,
            100% {
                transform: scale(1);
                opacity: 0.6;
            }
            50% {
                transform: scale(1.12);
                opacity: 0.2;
            }
        }
        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .step-item p {
            color: var(--color-text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            margin: 0;
        }

        /* ===== 奖励展示 ===== */
        .rewards-showcase {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        @media (max-width: 992px) {
            .rewards-showcase {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .rewards-showcase {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
        }
        .reward-item {
            background: var(--color-dark-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px 16px;
            text-align: center;
            transition: all var(--transition-base);
            cursor: default;
        }
        .reward-item:hover {
            transform: translateY(-4px);
            background: var(--color-dark-card-hover);
            border-color: rgba(255, 215, 0, 0.2);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
        }
        .reward-item .reward-icon {
            font-size: 36px;
            color: var(--color-gold);
            margin-bottom: 10px;
            display: block;
        }
        .reward-item .reward-value {
            font-size: 1.4rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--color-gold), #FFA500);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .reward-item .reward-label {
            color: var(--color-text-muted);
            font-size: 0.85rem;
            margin-top: 4px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--color-dark-bg);
        }
        .faq-accordion {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-dark-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color var(--transition-base);
        }
        .faq-item:hover {
            border-color: rgba(255, 255, 255, 0.12);
        }
        .faq-item .faq-question {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 24px;
            cursor: pointer;
            user-select: none;
            transition: background var(--transition-base);
        }
        .faq-item .faq-question:hover {
            background: rgba(255, 255, 255, 0.02);
        }
        .faq-item .faq-question .q-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(255, 215, 0, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-gold);
            font-weight: 700;
            font-size: 14px;
            flex-shrink: 0;
        }
        .faq-item .faq-question .q-text {
            flex: 1;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text-white);
        }
        .faq-item .faq-question .q-arrow {
            color: var(--color-text-muted);
            font-size: 14px;
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .q-arrow {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px 70px;
            color: var(--color-text-muted);
            font-size: 0.95rem;
            line-height: 1.8;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #0A0E1A 0%, #1A0A30 50%, #0A0E1A 100%);
            position: relative;
            padding: 80px 24px;
            text-align: center;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.webp') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .cta-content {
            position: relative;
            z-index: 2;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-section h2 {
            font-size: 2.4rem;
            font-weight: 900;
            margin-bottom: 14px;
        }
        .cta-section h2 .highlight {
            background: linear-gradient(135deg, var(--color-gold), #FFA500);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .cta-section p {
            color: var(--color-text-light);
            font-size: 1.1rem;
            margin-bottom: 28px;
            opacity: 0.9;
        }
        .cta-section .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            background: linear-gradient(135deg, var(--color-gold), #FFA500);
            color: #0A0E1A;
            padding: 16px 48px;
            border-radius: var(--radius-btn);
            font-size: 18px;
            font-weight: 800;
            transition: all var(--transition-base);
            border: none;
            cursor: pointer;
            box-shadow: 0 0 30px rgba(255, 215, 0, 0.2);
        }
        .cta-section .cta-btn:hover {
            transform: scale(1.06);
            box-shadow: 0 0 50px rgba(255, 215, 0, 0.4);
        }
        .cta-section .cta-btn i {
            font-size: 20px;
        }
        @media (max-width: 768px) {
            .cta-section h2 {
                font-size: 1.8rem;
            }
            .cta-section .cta-btn {
                padding: 14px 32px;
                font-size: 16px;
            }
        }

        /* ===== Footer ===== */
        .footer-main {
            background: #080B14;
            border-top: 1px solid var(--color-border);
            padding: 60px 40px 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            max-width: 1200px;
            margin: 0 auto 32px;
        }
        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 576px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }
        .footer-col .footer-logo {
            font-size: 20px;
            font-weight: 800;
            background: linear-gradient(135deg, var(--color-primary-light), var(--color-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 12px;
        }
        .footer-col p {
            color: var(--color-text-muted);
            font-size: 0.9rem;
            line-height: 1.8;
            margin-bottom: 16px;
            max-width: 320px;
        }
        .footer-col .social-links {
            display: flex;
            gap: 10px;
        }
        .footer-col .social-links a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text-muted);
            font-size: 18px;
            transition: all var(--transition-base);
        }
        .footer-col .social-links a:hover {
            background: var(--color-primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--color-text-white);
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: var(--color-text-muted);
            font-size: 0.9rem;
            transition: color var(--transition-base);
        }
        .footer-col ul li a:hover {
            color: var(--color-gold);
        }
        .contact-item {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--color-text-muted);
            font-size: 0.9rem;
            margin-bottom: 8px;
        }
        .contact-item i {
            width: 20px;
            color: var(--color-primary-light);
        }
        .footer-bottom {
            text-align: center;
            padding-top: 24px;
            border-top: 1px solid var(--color-border);
            color: var(--color-text-muted);
            font-size: 0.85rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        /* ===== Responsive Nav ===== */
        @media (max-width: 992px) {
            .navbar-main .nav-links {
                display: none;
            }
            .navbar-main .nav-actions {
                display: none;
            }
            .mobile-tab-bar {
                display: flex;
            }
            .navbar-main {
                padding: 0 20px;
                height: 64px;
            }
            .nav-logo {
                font-size: 18px;
            }
            body {
                padding-bottom: 60px;
            }
        }

        @media (min-width: 993px) {
            .mobile-tab-bar {
                display: none !important;
            }
            body {
                padding-bottom: 0;
            }
        }

        /* ===== 动画 ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== 空状态 ===== */
        .empty-state {
            text-align: center;
            padding: 60px 20px;
            color: var(--color-text-muted);
        }
        .empty-state i {
            font-size: 48px;
            margin-bottom: 16px;
            opacity: 0.4;
        }
        .empty-state p {
            font-size: 1rem;
        }

        /* ===== 杂项 ===== */
        .divider-gradient {
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--color-border-light), transparent);
            margin: 0;
        }

        .badge-custom {
            display: inline-block;
            background: rgba(255, 215, 0, 0.15);
            color: var(--color-gold);
            font-size: 12px;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 12px;
        }

        /* ===== 覆盖 Bootstrap 默认 ===== */
        .btn {
            border-radius: var(--radius-btn);
            font-weight: 600;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            border: none;
            box-shadow: var(--glow-primary);
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
            transform: scale(1.03);
        }

        .form-control {
            background: #1E2335;
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 12px;
            color: var(--color-text-white);
            padding: 12px 16px;
        }
        .form-control:focus {
            background: #1E2335;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(75, 59, 255, 0.2);
            color: var(--color-text-white);
        }
        .form-control::placeholder {
            color: var(--color-text-muted);
        }

        /* ===== 时间线装饰 ===== */
        .timeline-decoration {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            margin: 20px 0 0;
            color: var(--color-text-muted);
            font-size: 0.9rem;
        }
        .timeline-decoration .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-gold);
            opacity: 0.5;
        }
        .timeline-decoration .line {
            width: 40px;
            height: 1px;
            background: var(--color-border);
        }

/* roulang page: category3 */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #4B3BFF;
            --color-primary-light: #7C4DFF;
            --color-gold: #FFD700;
            --color-bg-dark: #0A0E1A;
            --color-bg-card: rgba(255, 255, 255, 0.05);
            --color-bg-card-hover: rgba(255, 255, 255, 0.10);
            --color-bg-section: #0F1420;
            --color-text-white: #FFFFFF;
            --color-text-light: #E0E0E0;
            --color-text-muted: #A0A4B0;
            --color-border: rgba(255, 255, 255, 0.08);
            --radius-card: 16px;
            --radius-sm: 8px;
            --radius-btn: 24px;
            --shadow-card: drop-shadow(0 8px 32px rgba(0,0,0,0.4));
            --shadow-glow: 0 0 20px rgba(124,77,255,0.15);
            --transition-base: 0.3s ease;
            --font-cn: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-cn);
            background-color: var(--color-bg-dark);
            color: var(--color-text-light);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--color-text-white);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--color-gold);
        }
        a:focus-visible {
            outline: 2px solid var(--color-gold);
            outline-offset: 2px;
        }

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

        /* ===== Container ===== */
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 576px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* ===== 导航 ===== */
        .navbar-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 40px;
            background: rgba(10, 14, 26, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 1050;
            flex-wrap: wrap;
        }

        .nav-logo {
            font-size: 1.4rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--color-primary-light), var(--color-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: 1px;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 8px;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }

        .nav-links li a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-light);
            transition: all var(--transition-base);
            position: relative;
        }

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

        .nav-links li a.active {
            color: var(--color-gold);
            background: rgba(255, 215, 0, 0.12);
            box-shadow: inset 0 -2px 0 var(--color-gold);
        }

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

        .btn-login {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: var(--color-text-white);
            padding: 8px 22px;
            border-radius: var(--radius-btn);
            font-size: 0.9rem;
            font-weight: 500;
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .btn-login:hover {
            background: rgba(255, 255, 255, 0.10);
            border-color: rgba(255, 255, 255, 0.4);
            transform: scale(1.02);
        }

        .btn-register {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            border: none;
            color: #fff;
            padding: 8px 22px;
            border-radius: var(--radius-btn);
            font-size: 0.9rem;
            font-weight: 600;
            box-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.2), 0 4px 15px rgba(75, 59, 255, 0.3);
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .btn-register:hover {
            transform: scale(1.04);
            box-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.3), 0 6px 25px rgba(75, 59, 255, 0.45);
        }

        /* 移动端底部 Tab (仅移动端可见) */
        .bottom-tab {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: rgba(10, 14, 26, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid var(--color-border);
            z-index: 1060;
            align-items: center;
            justify-content: space-around;
            padding: 0 8px;
        }

        .bottom-tab a {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2px;
            font-size: 0.65rem;
            color: var(--color-text-muted);
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-base);
        }

        .bottom-tab a i {
            font-size: 1.1rem;
        }

        .bottom-tab a.active {
            color: var(--color-gold);
        }

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

        @media (max-width: 768px) {
            .navbar-main {
                padding: 12px 16px;
            }
            .nav-links {
                display: none;
            }
            .nav-actions .btn-login {
                display: none;
            }
            .nav-actions .btn-register {
                padding: 6px 16px;
                font-size: 0.82rem;
            }
            .bottom-tab {
                display: flex;
            }
            body {
                padding-bottom: 60px;
            }
        }

        @media (min-width: 769px) {
            .bottom-tab {
                display: none !important;
            }
            body {
                padding-bottom: 0;
            }
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            min-height: 70vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            background-blend-mode: overlay;
            background-color: #0A0E1A;
            overflow: hidden;
            padding: 80px 24px;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 14, 26, 0.88) 0%, rgba(15, 20, 32, 0.70) 60%, rgba(75, 59, 255, 0.15) 100%);
            z-index: 1;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 30% 50%, rgba(124, 77, 255, 0.08) 0%, transparent 60%),
                        radial-gradient(circle at 70% 30%, rgba(255, 215, 0, 0.04) 0%, transparent 50%);
            z-index: 1;
        }

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

        .hero-content .hero-badge {
            display: inline-block;
            background: rgba(255, 215, 0, 0.15);
            color: var(--color-gold);
            padding: 6px 20px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 20px;
            border: 1px solid rgba(255, 215, 0, 0.20);
        }

        .hero-content h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: var(--color-text-white);
            line-height: 1.2;
            margin-bottom: 20px;
        }

        .hero-content h1 .highlight {
            background: linear-gradient(135deg, var(--color-primary-light), var(--color-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-content p {
            font-size: 1.15rem;
            color: var(--color-text-muted);
            max-width: 640px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

        .hero-search-box {
            display: flex;
            max-width: 520px;
            margin: 0 auto 16px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 50px;
            border: 1px solid rgba(255, 255, 255, 0.10);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .hero-search-box:focus-within {
            border-color: var(--color-primary-light);
            box-shadow: 0 0 20px rgba(124, 77, 255, 0.15);
        }

        .hero-search-box input {
            flex: 1;
            background: transparent;
            border: none;
            padding: 14px 24px;
            color: var(--color-text-white);
            font-size: 0.95rem;
            outline: none;
        }

        .hero-search-box input::placeholder {
            color: var(--color-text-muted);
        }

        .hero-search-box button {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            border: none;
            color: #fff;
            padding: 14px 28px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition-base);
        }

        .hero-search-box button:hover {
            filter: brightness(1.10);
        }

        .hero-meta-tags {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
            margin-top: 12px;
        }

        .hero-meta-tags span {
            background: rgba(255, 255, 255, 0.06);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.78rem;
            color: var(--color-text-muted);
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

        @media (max-width: 768px) {
            .hero-section {
                min-height: 60vh;
                padding: 60px 16px;
            }
            .hero-content h1 {
                font-size: 2.2rem;
            }
            .hero-content p {
                font-size: 1rem;
            }
            .hero-search-box {
                flex-direction: column;
                border-radius: var(--radius-card);
            }
            .hero-search-box input {
                padding: 12px 18px;
            }
            .hero-search-box button {
                padding: 12px 18px;
                width: 100%;
            }
        }

        @media (max-width: 480px) {
            .hero-content h1 {
                font-size: 1.8rem;
            }
        }

        /* ===== 板块通用 ===== */
        .section-block {
            padding: 80px 0;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-text-white);
            text-align: center;
            margin-bottom: 12px;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--color-text-muted);
            text-align: center;
            max-width: 620px;
            margin: 0 auto 48px;
            line-height: 1.7;
        }

        .section-title-line {
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--color-primary-light), var(--color-gold));
            margin: 16px auto 32px;
            border-radius: 4px;
        }

        @media (max-width: 768px) {
            .section-block {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-subtitle {
                margin-bottom: 32px;
                font-size: 0.95rem;
            }
        }

        /* ===== 帮助分类卡片 ===== */
        .help-category-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .help-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-card);
            padding: 32px 20px;
            text-align: center;
            border: 1px solid var(--color-border);
            transition: all var(--transition-base);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }

        .help-card:hover {
            background: var(--color-bg-card-hover);
            transform: translateY(-6px);
            box-shadow: var(--shadow-glow), 0 12px 40px rgba(0, 0, 0, 0.3);
            border-color: rgba(124, 77, 255, 0.20);
        }

        .help-card .icon-wrap {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(75, 59, 255, 0.15), rgba(124, 77, 255, 0.10));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.6rem;
            color: var(--color-gold);
            transition: all var(--transition-base);
        }

        .help-card:hover .icon-wrap {
            background: linear-gradient(135deg, rgba(75, 59, 255, 0.25), rgba(124, 77, 255, 0.20));
            transform: scale(1.05);
        }

        .help-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--color-text-white);
            margin-bottom: 8px;
        }

        .help-card p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }

        .help-card .card-link {
            display: inline-block;
            margin-top: 14px;
            font-size: 0.85rem;
            color: var(--color-primary-light);
            font-weight: 500;
            transition: color var(--transition-base);
        }

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

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

        @media (max-width: 576px) {
            .help-category-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .help-card {
                padding: 24px 16px;
            }
        }

        /* ===== FAQ 手风琴 ===== */
        .faq-wrapper {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            border-color: rgba(124, 77, 255, 0.15);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            user-select: none;
            transition: background var(--transition-base);
        }

        .faq-question:hover {
            background: rgba(255, 255, 255, 0.03);
        }

        .faq-question .q-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-gold);
            color: #000;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            font-weight: 700;
            flex-shrink: 0;
            margin-right: 16px;
        }

        .faq-question .q-text {
            flex: 1;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text-white);
        }

        .faq-question .q-arrow {
            flex-shrink: 0;
            font-size: 0.9rem;
            color: var(--color-text-muted);
            transition: transform var(--transition-base);
        }

        .faq-item.open .q-arrow {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.45s ease, padding 0.3s ease;
            padding: 0 24px;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }

        .faq-answer p {
            font-size: 0.92rem;
            color: var(--color-text-muted);
            line-height: 1.8;
            margin-bottom: 0;
            border-top: 1px solid var(--color-border);
            padding-top: 16px;
        }

        @media (max-width: 576px) {
            .faq-question {
                padding: 14px 16px;
            }
            .faq-question .q-text {
                font-size: 0.92rem;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 16px;
            }
            .faq-answer p {
                font-size: 0.88rem;
            }
        }

        /* ===== 流程步骤 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step-counter;
        }

        .step-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-card);
            padding: 32px 20px;
            text-align: center;
            border: 1px solid var(--color-border);
            position: relative;
            transition: all var(--transition-base);
        }

        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-glow);
            border-color: rgba(124, 77, 255, 0.15);
        }

        .step-card .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 700;
            margin: 0 auto 16px;
            box-shadow: 0 0 20px rgba(75, 59, 255, 0.20);
        }

        .step-card h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-text-white);
            margin-bottom: 8px;
        }

        .step-card p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }

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

        @media (max-width: 576px) {
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .step-card {
                padding: 24px 16px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: url('/assets/images/backpic/back-3.webp') center center / cover no-repeat;
            background-blend-mode: overlay;
            background-color: #0A0E1A;
            position: relative;
            padding: 80px 24px;
            text-align: center;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 14, 26, 0.88) 0%, rgba(15, 20, 32, 0.75) 100%);
            z-index: 1;
        }

        .cta-content {
            position: relative;
            z-index: 2;
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-text-white);
            margin-bottom: 16px;
        }

        .cta-content p {
            font-size: 1.05rem;
            color: var(--color-text-muted);
            margin-bottom: 28px;
            line-height: 1.7;
        }

        .btn-cta-primary {
            display: inline-block;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            border: none;
            color: #fff;
            padding: 16px 48px;
            border-radius: var(--radius-btn);
            font-size: 1.05rem;
            font-weight: 600;
            box-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.2), 0 4px 20px rgba(75, 59, 255, 0.35);
            transition: all var(--transition-base);
            cursor: pointer;
            text-decoration: none;
            animation: pulse-cta 2s ease-in-out infinite;
        }

        .btn-cta-primary:hover {
            transform: scale(1.06);
            box-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.3), 0 8px 35px rgba(75, 59, 255, 0.50);
            color: #fff;
        }

        @keyframes pulse-cta {
            0%,
            100% {
                box-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.2), 0 4px 20px rgba(75, 59, 255, 0.35);
            }
            50% {
                box-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.2), 0 8px 40px rgba(75, 59, 255, 0.55);
            }
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 60px 16px;
            }
            .cta-content h2 {
                font-size: 1.6rem;
            }
            .cta-content p {
                font-size: 0.95rem;
            }
            .btn-cta-primary {
                padding: 14px 32px;
                font-size: 0.95rem;
            }
        }

        /* ===== 页脚 ===== */
        .footer-main {
            background: #0A0E1A;
            border-top: 1px solid var(--color-border);
            padding: 60px 40px 20px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr;
            gap: 40px;
            max-width: 1200px;
            margin: 0 auto;
        }

        .footer-logo {
            font-size: 1.3rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--color-primary-light), var(--color-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 12px;
        }

        .footer-col p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .social-links {
            display: flex;
            gap: 12px;
        }

        .social-links a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text-muted);
            font-size: 1rem;
            transition: all var(--transition-base);
            border: 1px solid var(--color-border);
        }

        .social-links a:hover {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            transform: translateY(-2px);
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text-white);
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 2px;
            background: var(--color-primary-light);
            border-radius: 2px;
        }

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

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

        .footer-col ul li a {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            transition: color var(--transition-base);
            padding: 2px 0;
            display: inline-block;
        }

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

        .contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.88rem;
            color: var(--color-text-muted);
            margin-bottom: 10px;
        }

        .contact-item i {
            width: 20px;
            color: var(--color-primary-light);
            font-size: 0.9rem;
        }

        .footer-bottom {
            text-align: center;
            padding-top: 28px;
            margin-top: 40px;
            border-top: 1px solid var(--color-border);
            font-size: 0.82rem;
            color: var(--color-text-muted);
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
        }

        @media (max-width: 768px) {
            .footer-main {
                padding: 40px 16px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-col h4::after {
                left: 50%;
                transform: translateX(-50%);
            }
            .footer-col {
                text-align: center;
            }
            .social-links {
                justify-content: center;
            }
            .contact-item {
                justify-content: center;
            }
        }

        /* ===== 统计数字 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            max-width: 800px;
            margin: 0 auto;
        }

        .stat-item {
            text-align: center;
            padding: 24px 16px;
            background: var(--color-bg-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            transition: all var(--transition-base);
        }

        .stat-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-glow);
        }

        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--color-primary-light), var(--color-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            margin-top: 4px;
        }

        @media (max-width: 576px) {
            .stats-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
        }

        /* ===== 空状态 ===== */
        .empty-state {
            text-align: center;
            padding: 60px 20px;
            color: var(--color-text-muted);
        }

        .empty-state i {
            font-size: 3rem;
            color: var(--color-text-muted);
            opacity: 0.3;
            margin-bottom: 16px;
        }

        .empty-state p {
            font-size: 1rem;
        }

        /* ===== 图片占位 ===== */
        .img-placeholder {
            background: var(--color-bg-card);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text-muted);
            font-size: 0.85rem;
            min-height: 120px;
            border: 1px dashed var(--color-border);
        }

        /* ===== 高亮关键词 ===== */
        .keyword-highlight {
            color: var(--color-gold);
            font-weight: 600;
        }

        /* ===== Bootstrap 覆盖 ===== */
        .btn-primary {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light)) !important;
            border: none !important;
            border-radius: var(--radius-btn) !important;
            padding: 12px 32px !important;
            font-weight: 600 !important;
            box-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.2), 0 4px 15px rgba(75, 59, 255, 0.3) !important;
        }

        .btn-primary:hover {
            transform: scale(1.03);
            box-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.3), 0 6px 25px rgba(75, 59, 255, 0.45) !important;
        }

        /* ===== 渐入动画 ===== */
        .fade-in-up {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }

        .fade-in-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== 资讯/动态列表（首页复用） ===== */
        .latest-news {
            margin-top: 32px;
        }

        .news-card {
            display: flex;
            gap: 16px;
            background: var(--color-bg-card);
            border-radius: var(--radius-card);
            padding: 16px;
            border: 1px solid var(--color-border);
            transition: all var(--transition-base);
            margin-bottom: 16px;
        }

        .news-card:hover {
            background: var(--color-bg-card-hover);
            transform: translateY(-3px);
            box-shadow: var(--shadow-glow);
        }

        .news-thumb {
            width: 120px;
            height: 80px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--color-bg-card);
        }

        .news-info {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .news-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text-white);
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-summary {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 4px;
        }

        .news-meta {
            display: flex;
            gap: 12px;
            align-items: center;
            font-size: 0.78rem;
            color: var(--color-text-muted);
        }

        .news-meta .category-badge {
            background: var(--color-gold);
            color: #000;
            padding: 1px 10px;
            border-radius: 12px;
            font-size: 0.72rem;
            font-weight: 600;
        }

        @media (max-width: 576px) {
            .news-card {
                flex-direction: column;
            }
            .news-thumb {
                width: 100%;
                height: 140px;
            }
        }

        /* ===== 响应式微调 ===== */
        @media (max-width: 768px) {
            .section-title {
                font-size: 1.5rem;
            }
            .container-custom {
                padding: 0 16px;
            }
        }