/* roulang page: index */
:root {
            --color-primary: #C62828;
            --color-primary-hover: #E53935;
            --color-primary-active: #B71C1C;
            --color-accent: #FFB800;
            --color-accent-hover: #FFC533;
            --color-bg: #131417;
            --color-bg-alt: #1B1C20;
            --color-bg-dark: #0D0E10;
            --color-text: #F8F9FA;
            --color-text-secondary: #9CA3AF;
            --color-text-muted: #6B7280;
            --color-border: rgba(255, 255, 255, 0.08);
            --color-success: #4CAF50;
            --color-warning: #FF6B35;
            --color-disabled: #4B5563;
            --radius-card: 16px;
            --radius-btn: 8px;
            --radius-badge: 999px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
            --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.5);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.75;
            font-size: 1rem;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        input {
            font-family: inherit;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-pad {
            padding: 96px 0;
        }
        .section-pad-sm {
            padding: 64px 0;
        }

        /* 导航 */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            z-index: 1000;
            background: linear-gradient(to bottom, rgba(19, 20, 23, 0.92), rgba(19, 20, 23, 0));
            border-bottom: 1px solid transparent;
            transition: all 0.3s ease;
        }
        .site-header.scrolled {
            background: rgba(23, 23, 26, 0.96);
            border-bottom: 1px solid var(--color-border);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 56px;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .header-left {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .logo {
            font-size: 1.375rem;
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: 0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .logo .logo-accent {
            color: var(--color-accent);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 2px;
        }
        .nav-link {
            padding: 6px 16px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            border-radius: 6px;
            transition: all 0.3s ease;
            position: relative;
            letter-spacing: 0.01em;
        }
        .nav-link:hover {
            color: var(--color-text);
            background: rgba(255, 255, 255, 0.03);
        }
        .nav-link.active {
            color: var(--color-primary-hover);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .header-right {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-btn);
            padding: 0 12px;
            height: 36px;
            width: 200px;
            transition: all 0.3s;
            border: 1px solid rgba(255, 255, 255, 0.06);
            overflow: hidden;
        }
        .search-box:focus-within {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(198, 40, 40, 0.15);
        }
        .search-box input {
            background: transparent;
            border: none;
            outline: none;
            color: var(--color-text);
            font-size: 0.8125rem;
            width: 100%;
            line-height: 34px;
        }
        .search-box input::placeholder {
            color: var(--color-text-muted);
        }
        .search-box .search-btn {
            background: transparent;
            border: none;
            color: var(--color-text-muted);
            font-size: 1rem;
            padding: 0;
            margin-left: 6px;
            line-height: 1;
            flex-shrink: 0;
            transition: color 0.3s;
        }
        .search-box .search-btn:hover {
            color: var(--color-accent);
        }
        .btn-header {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 100px;
            height: 36px;
            padding: 0 18px;
            background: var(--color-primary);
            color: #fff;
            border-radius: var(--radius-btn);
            font-size: 0.8125rem;
            font-weight: 600;
            transition: all 0.3s ease;
            border: none;
            letter-spacing: 0.02em;
        }
        .btn-header:hover {
            background: var(--color-primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(198, 40, 40, 0.4);
        }
        .btn-header:active {
            background: var(--color-primary-active);
            transform: translateY(0);
        }
        .menu-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--color-text);
            font-size: 1.375rem;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            transition: background 0.3s;
        }
        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.05);
        }
        .mobile-menu {
            display: none;
            position: absolute;
            top: 56px;
            left: 0;
            right: 0;
            background: rgba(19, 20, 23, 0.98);
            border-bottom: 1px solid var(--color-border);
            padding: 8px 16px 16px;
            flex-direction: column;
            gap: 4px;
            box-shadow: var(--shadow-card);
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-nav-link {
            padding: 12px 16px;
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            border-radius: var(--radius-btn);
            transition: all 0.3s;
        }
        .mobile-nav-link:hover {
            color: var(--color-text);
            background: rgba(255, 255, 255, 0.04);
        }
        .mobile-nav-link.active {
            color: var(--color-primary-hover);
            background: rgba(198, 40, 40, 0.08);
        }

        /* 按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 160px;
            height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-btn);
            font-size: 0.9375rem;
            font-weight: 600;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            letter-spacing: 0.02em;
        }
        .btn:hover {
            transform: translateY(-2px);
        }
        .btn:active {
            transform: translateY(0);
        }
        .btn-primary {
            background: var(--color-primary);
            color: #fff;
            box-shadow: 0 2px 12px rgba(198, 40, 40, 0.3);
        }
        .btn-primary:hover {
            background: var(--color-primary-hover);
            box-shadow: 0 6px 24px rgba(198, 40, 40, 0.45);
        }
        .btn-primary:active {
            background: var(--color-primary-active);
        }
        .btn-secondary {
            background: transparent;
            color: var(--color-primary-hover);
            border: 1px solid rgba(198, 40, 40, 0.4);
        }
        .btn-secondary:hover {
            border-color: rgba(198, 40, 40, 0.8);
            background: rgba(198, 40, 40, 0.08);
            box-shadow: 0 4px 16px rgba(198, 40, 40, 0.15);
        }
        .btn-cta-big {
            min-width: 220px;
            height: 56px;
            font-size: 1.0625rem;
            border-radius: 12px;
        }

        /* Hero */
        .hero-section {
            width: 100%;
            min-height: 100vh;
            min-height: 640px;
            display: flex;
            padding-top: 56px;
            background: var(--color-bg);
            position: relative;
            overflow: hidden;
        }
        .hero-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            width: 100%;
            max-width: 100%;
        }
        .hero-left {
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: flex-start;
            padding: 48px clamp(24px, 4vw, 48px) 48px clamp(16px, 3vw, 48px);
            max-width: 660px;
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border: 1px solid rgba(255, 184, 0, 0.3);
            border-radius: var(--radius-badge);
            font-size: 0.8125rem;
            font-weight: 500;
            color: var(--color-accent);
            margin-bottom: 20px;
            background: rgba(255, 184, 0, 0.06);
            letter-spacing: 0.02em;
        }
        .hero-badge i {
            font-style: normal;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-accent);
            display: inline-block;
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(255, 184, 0, 0.5);
            }
            50% {
                box-shadow: 0 0 0 6px rgba(255, 184, 0, 0);
            }
        }
        .hero-title {
            font-size: clamp(1.875rem, 4vw, 3rem);
            font-weight: 800;
            line-height: 1.22;
            letter-spacing: 0.01em;
            color: var(--color-text);
            margin-bottom: 20px;
        }
        .hero-title .highlight {
            color: var(--color-primary-hover);
        }
        .hero-title .highlight-gold {
            color: var(--color-accent);
        }
        .hero-subtitle {
            font-size: 1.0625rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            max-width: 460px;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-right {
            position: relative;
            min-height: 640px;
            overflow: hidden;
            background: var(--color-bg-alt);
        }
        .hero-right img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(19, 20, 23, 0.6) 0%, rgba(19, 20, 23, 0.1) 50%, rgba(198, 40, 40, 0.04) 100%);
            z-index: 1;
        }
        .hero-stats {
            position: absolute;
            bottom: 24px;
            left: 24px;
            right: 24px;
            z-index: 2;
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-stat {
            background: rgba(19, 20, 23, 0.75);
            border: 1px solid var(--color-border);
            border-radius: 12px;
            padding: 12px 20px;
            backdrop-filter: blur(4px);
            flex: 1;
            min-width: 110px;
        }
        .hero-stat .stat-num {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-accent);
            display: block;
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
        }
        .hero-stat .stat-label {
            font-size: 0.75rem;
            color: var(--color-text-secondary);
            display: block;
            margin-top: 2px;
        }

        /* 板块标题 */
        .section-header {
            margin-bottom: 48px;
            text-align: center;
            max-width: 720px;
            margin-left: auto;
            margin-right: auto;
        }
        .section-header .section-tag {
            display: inline-block;
            font-size: 0.8125rem;
            font-weight: 600;
            color: var(--color-primary-hover);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 8px;
            background: rgba(198, 40, 40, 0.1);
            padding: 4px 14px;
            border-radius: var(--radius-badge);
        }
        .section-header h2 {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .section-header p {
            font-size: 1rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        /* 玩法介绍 */
        .gameplay-section {
            background: var(--color-bg);
            position: relative;
        }
        .gameplay-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 24px;
            align-items: stretch;
        }
        .gameplay-card {
            background: var(--color-bg-alt);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px;
            position: relative;
            overflow: hidden;
            transition: all 0.35s ease;
            box-shadow: var(--shadow-card);
        }
        .gameplay-card:hover {
            transform: translateY(-2px);
            border-color: rgba(255, 255, 255, 0.2);
            box-shadow: var(--shadow-card-hover);
        }
        .gameplay-card .card-number {
            position: absolute;
            top: -8px;
            right: 12px;
            font-size: 5rem;
            font-weight: 800;
            color: rgba(255, 255, 255, 0.04);
            line-height: 1;
            transition: color 0.35s;
            pointer-events: none;
        }
        .gameplay-card:hover .card-number {
            color: rgba(198, 40, 40, 0.15);
        }
        .gameplay-featured {
            display: flex;
            flex-direction: column;
        }
        .gameplay-featured .card-media {
            width: 100%;
            height: auto;
            max-height: 260px;
            overflow: hidden;
            border-radius: 12px;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #1e1e22, #25252a);
        }
        .gameplay-featured .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .gameplay-card .card-body {
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .gameplay-card .card-title-row {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 8px;
        }
        .gameplay-card .card-title-row .card-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(198, 40, 40, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.125rem;
            flex-shrink: 0;
        }
        .gameplay-card h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--color-text);
        }
        .gameplay-card .card-desc {
            font-size: 0.9375rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }
        .gameplay-card .card-link {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-primary-hover);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.3s;
        }
        .gameplay-card .card-link:hover {
            gap: 10px;
            color: var(--color-primary-hover);
        }
        .gameplay-side {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .gameplay-side .gameplay-card {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .gameplay-side .card-media {
            width: 100%;
            height: 0;
            padding-bottom: 56.25%;
            position: relative;
            overflow: hidden;
            border-radius: 10px;
            margin-bottom: 16px;
            background: linear-gradient(135deg, #1e1e22, #25252a);
        }
        .gameplay-side .card-media img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* 奖励预览 */
        .reward-section {
            background: var(--color-bg-alt);
            position: relative;
            overflow: hidden;
        }
        .reward-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 300px;
            background: radial-gradient(ellipse, rgba(255, 184, 0, 0.04) 0%, transparent 70%);
            pointer-events: none;
        }
        .podium {
            display: flex;
            align-items: flex-end;
            justify-content: center;
            gap: 20px;
            max-width: 980px;
            margin: 0 auto;
            padding: 20px 0 0;
        }
        .podium-card {
            border-radius: var(--radius-card);
            padding: 24px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: flex-start;
            text-align: center;
            position: relative;
            border: 1px solid var(--color-border);
            transition: all 0.35s ease;
            flex: 1;
            max-width: 260px;
            min-width: 200px;
        }
        .podium-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .podium-first {
            height: 320px;
            background: linear-gradient(135deg, rgba(198, 40, 40, 0.12) 0%, rgba(19, 20, 23, 0.9) 60%), var(--color-bg);
            border-color: rgba(198, 40, 40, 0.4);
            max-width: 300px;
            flex: 1.2;
            box-shadow: 0 0 40px rgba(198, 40, 40, 0.1);
        }
        .podium-first:hover {
            border-color: rgba(198, 40, 40, 0.7);
            box-shadow: 0 8px 40px rgba(198, 40, 40, 0.2);
        }
        .podium-second {
            height: 220px;
            background: rgba(19, 20, 23, 0.6);
            border-color: rgba(255, 184, 0, 0.15);
        }
        .podium-third {
            height: 220px;
            background: rgba(19, 20, 23, 0.6);
            border-color: rgba(255, 255, 255, 0.06);
        }
        .podium-icon {
            font-size: 2.5rem;
            margin-bottom: 12px;
            line-height: 1;
        }
        .podium-first .podium-icon {
            font-size: 3.25rem;
        }
        .podium-rank {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
            letter-spacing: 0.05em;
        }
        .podium-reward {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1.2;
            margin-bottom: 4px;
            font-variant-numeric: tabular-nums;
        }
        .podium-extra {
            font-size: 0.8125rem;
            color: var(--color-text-muted);
        }
        .podium-link {
            margin-top: 24px;
            text-align: center;
        }
        .podium-link a {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-primary-hover);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.3s;
        }
        .podium-link a:hover {
            gap: 10px;
        }

        /* 任务进度 */
        .progress-section {
            background: var(--color-bg);
        }
        .progress-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
            max-width: 1080px;
            margin: 0 auto;
        }
        .steps-list {
            position: relative;
            padding-left: 0;
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .steps-list::before {
            content: '';
            position: absolute;
            left: 11px;
            top: 24px;
            bottom: 24px;
            width: 2px;
            background: rgba(255, 255, 255, 0.08);
        }
        .step-item {
            position: relative;
            padding: 0 0 32px 40px;
        }
        .step-item:last-child {
            padding-bottom: 0;
        }
        .step-item.step-completed::before {
            content: '✓';
            position: absolute;
            left: 0;
            top: 4px;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--color-success);
            color: #fff;
            font-size: 0.75rem;
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 2;
            box-shadow: 0 0 0 4px rgba(76, 175, 80, 0.2);
        }
        .step-item.step-active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 4px;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            border: 2px solid var(--color-primary);
            background: var(--color-bg);
            z-index: 2;
            animation: pulse-ring 2s infinite;
        }
        .step-item.step-pending::before {
            content: '';
            position: absolute;
            left: 0;
            top: 4px;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            z-index: 2;
        }
        @keyframes pulse-ring {
            0% {
                box-shadow: 0 0 0 0 rgba(198, 40, 40, 0.4);
            }
            70% {
                box-shadow: 0 0 0 10px rgba(198, 40, 40, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(198, 40, 40, 0);
            }
        }
        .step-item .step-name {
            font-size: 1.0625rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 2px;
        }
        .step-item .step-desc {
            font-size: 0.8125rem;
            color: var(--color-text-muted);
        }
        .progress-panel {
            background: var(--color-bg-alt);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
        }
        .progress-panel-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .progress-panel-title .progress-percent {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-accent);
            font-variant-numeric: tabular-nums;
        }
        .progress-bar {
            height: 8px;
            border-radius: 99px;
            background: rgba(255, 255, 255, 0.08);
            overflow: hidden;
            margin-bottom: 24px;
        }
        .progress-fill {
            height: 100%;
            border-radius: 99px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
            transition: width 0.5s ease;
        }
        .task-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .task-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            border-bottom: 1px solid var(--color-border);
        }
        .task-item:last-child {
            border-bottom: none;
        }
        .task-item .task-name {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9375rem;
            color: var(--color-text);
        }
        .task-item .task-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-disabled);
            flex-shrink: 0;
        }
        .task-item.task-completed .task-dot {
            background: var(--color-success);
        }
        .task-item.task-completed .task-name {
            color: var(--color-text-secondary);
        }
        .task-item.task-completed .task-status {
            color: var(--color-success);
        }
        .task-item.task-active .task-dot {
            background: var(--color-primary);
            animation: pulse-dot 2s infinite;
        }
        .task-item.task-active .task-status {
            color: var(--color-accent);
        }
        .task-item .task-status {
            font-size: 0.8125rem;
            color: var(--color-text-muted);
            font-weight: 500;
        }

        /* CTA区 */
        .cta-section {
            background: var(--color-bg);
            position: relative;
            padding: 128px 0;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(255, 184, 0, 0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 184, 0, 0.04) 1px, transparent 1px);
            background-size: 40px 40px;
            pointer-events: none;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: clamp(1.5rem, 3vw, 2.25rem);
            font-weight: 800;
            color: var(--color-text);
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }
        .cta-inner p {
            font-size: 1rem;
            color: var(--color-text-secondary);
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .cta-inner .btn {
            min-width: 220px;
            height: 56px;
            font-size: 1.0625rem;
            border-radius: 12px;
        }

        /* 最新信息 */
        .news-section {
            background: var(--color-bg-alt);
        }
        .news-list {
            max-width: 960px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .news-item {
            display: flex;
            align-items: center;
            gap: 20px;
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: 12px;
            padding: 16px 20px;
            transition: all 0.35s ease;
            position: relative;
            overflow: hidden;
        }
        .news-item:hover {
            border-color: rgba(255, 255, 255, 0.18);
            box-shadow: var(--shadow-card-hover);
            transform: translateX(2px);
        }
        .news-thumb {
            width: 120px;
            height: 80px;
            border-radius: 10px;
            overflow: hidden;
            flex-shrink: 0;
            background: linear-gradient(135deg, #1e1e22, #25252a);
            border: 1px solid rgba(255, 255, 255, 0.04);
        }
        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }
        .news-item:hover .news-thumb img {
            transform: scale(1.05);
        }
        .news-thumb-fallback {
            width: 100%;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #1e1e22, #25252a);
            font-size: 1.5rem;
            color: rgba(255, 255, 255, 0.2);
        }
        .news-content {
            flex: 1;
            min-width: 0;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 4px;
            flex-wrap: wrap;
        }
        .news-category {
            display: inline-flex;
            align-items: center;
            padding: 2px 10px;
            background: rgba(198, 40, 40, 0.12);
            color: var(--color-primary-hover);
            border-radius: var(--radius-badge);
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .news-time {
            font-size: 0.75rem;
            color: var(--color-text-muted);
        }
        .news-title {
            font-size: 1.0625rem;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.4;
            margin-bottom: 4px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            transition: color 0.3s;
        }
        .news-item:hover .news-title {
            color: var(--color-primary-hover);
        }
        .news-summary {
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-arrow {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            color: var(--color-text-muted);
            font-size: 1.125rem;
            flex-shrink: 0;
            opacity: 0;
            transform: translateX(-8px);
            transition: all 0.35s ease;
        }
        .news-item:hover .news-arrow {
            opacity: 1;
            transform: translateX(0);
            color: var(--color-accent);
        }
        .news-empty {
            text-align: center;
            padding: 60px 20px;
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            color: var(--color-text-muted);
        }
        .news-empty-icon {
            font-size: 3rem;
            margin-bottom: 16px;
            opacity: 0.4;
        }
        .news-empty p {
            font-size: 0.9375rem;
        }

        /* FAQ */
        .faq-section {
            background: var(--color-bg);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-bg-alt);
            border: 1px solid var(--color-border);
            border-radius: 12px;
            overflow: hidden;
            transition: border-color 0.3s;
        }
        .faq-item:hover {
            border-color: rgba(255, 255, 255, 0.15);
        }
        .faq-item.open {
            border-color: rgba(198, 40, 40, 0.4);
        }
        .faq-item-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            transition: background 0.3s;
            min-height: 56px;
            gap: 12px;
        }
        .faq-item-head:hover {
            background: rgba(255, 255, 255, 0.02);
        }
        .faq-item-title {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--color-text);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .faq-item-title .faq-bar {
            width: 3px;
            height: 18px;
            background: var(--color-primary);
            border-radius: 2px;
            flex-shrink: 0;
        }
        .faq-item-icon {
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text-muted);
            font-size: 1rem;
            flex-shrink: 0;
            transition: transform 0.3s;
        }
        .faq-item.open .faq-item-icon {
            transform: rotate(45deg);
            color: var(--color-primary-hover);
        }
        .faq-item-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 20px;
            border-top: 1px solid transparent;
        }
        .faq-item.open .faq-item-body {
            max-height: 300px;
            padding: 16px 20px;
            border-top: 1px solid var(--color-border);
        }
        .faq-item-body p {
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* 页脚 */
        .site-footer {
            background: #0D0E10;
            border-top: 1px solid var(--color-border);
            padding: 64px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
        }
        .footer-brand .logo {
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.875rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-title {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-links a {
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            transition: color 0.3s, padding-left 0.3s;
        }
        .footer-links a:hover {
            color: var(--color-primary-hover);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 20px 0;
            text-align: center;
            font-size: 0.8125rem;
            color: var(--color-text-muted);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .container {
                padding: 0 20px;
            }
            .gameplay-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .gameplay-side {
                flex-direction: row;
                gap: 20px;
            }
            .gameplay-side .gameplay-card {
                flex: 1;
                min-height: 220px;
            }
            .podium {
                gap: 12px;
                padding: 0 10px;
            }
            .podium-card {
                min-width: 160px;
                padding: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            .section-pad {
                padding: 56px 0;
            }
            .section-pad-sm {
                padding: 40px 0;
            }
            .main-nav {
                display: none;
            }
            .search-box {
                display: none;
            }
            .menu-toggle {
                display: flex;
            }
            .btn-header {
                min-width: 84px;
                padding: 0 12px;
                font-size: 0.75rem;
            }
            .hero-section {
                display: block;
                padding-top: 56px;
            }
            .hero-inner {
                grid-template-columns: 1fr;
            }
            .hero-left {
                padding: 40px 16px 24px;
                max-width: 100%;
            }
            .hero-title {
                font-size: clamp(1.625rem, 6vw, 2.125rem);
            }
            .hero-subtitle {
                font-size: 0.9375rem;
            }
            .hero-actions {
                gap: 12px;
                width: 100%;
            }
            .hero-actions .btn {
                min-width: 140px;
                height: 44px;
            }
            .hero-right {
                min-height: 320px;
                order: 2;
            }
            .hero-right img {
                position: relative;
                height: 320px;
            }
            .hero-stats {
                position: relative;
                bottom: auto;
                left: auto;
                right: auto;
                padding: 12px 16px;
                background: var(--color-bg);
                flex-direction: row;
            }
            .hero-stat {
                min-width: 0;
                flex: 1;
                padding: 10px 12px;
            }
            .hero-stat .stat-num {
                font-size: 1.125rem;
            }
            .gameplay-side {
                flex-direction: column;
            }
            .gameplay-side .gameplay-card {
                min-height: auto;
            }
            .podium {
                flex-direction: column;
                align-items: center;
                gap: 16px;
            }
            .podium-card,
            .podium-first {
                width: 100%;
                max-width: 100%;
                height: auto !important;
                min-height: 140px;
                max-height: none;
            }
            .podium-card {
                height: auto;
                min-height: 0;
            }
            .podium-first {
                order: -1;
            }
            .progress-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .news-item {
                flex-direction: row;
                padding: 12px;
                gap: 12px;
            }
            .news-thumb {
                width: 96px;
                height: 64px;
            }
            .news-arrow {
                display: none;
            }
            .news-title {
                font-size: 0.9375rem;
            }
            .news-summary {
                font-size: 0.8125rem;
                -webkit-line-clamp: 2;
            }
            .cta-section {
                padding: 80px 0;
            }
            .cta-inner .btn {
                width: 100%;
                min-width: 0;
                height: 48px;
                font-size: 0.9375rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                padding-bottom: 32px;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .section-header h2 {
                font-size: 1.375rem;
            }
            .gameplay-card {
                padding: 20px;
            }
            .gameplay-card .card-number {
                font-size: 3.5rem;
            }
        }
        @media (max-width: 480px) {
            .header-inner {
                padding: 0 12px;
            }
            .logo {
                font-size: 1.125rem;
            }
            .btn-header {
                min-width: 72px;
                height: 32px;
                font-size: 0.6875rem;
                padding: 0 8px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn {
                width: 100%;
                min-width: 0;
            }
            .news-item {
                flex-direction: column;
                align-items: flex-start;
            }
            .news-thumb {
                width: 100%;
                height: 150px;
            }
            .news-thumb img {
                height: 150px;
            }
            .news-meta {
                margin-top: 4px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #C62828;
            --primary-hover: #E53935;
            --primary-active: #B71C1C;
            --accent: #FFB800;
            --accent-hover: #FFC533;
            --bg: #131417;
            --bg-alt: #1B1C20;
            --bg-deep: #0D0E10;
            --text: #F8F9FA;
            --text-secondary: #9CA3AF;
            --text-muted: #6B7280;
            --border: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(255, 255, 255, 0.2);
            --radius: 16px;
            --radius-sm: 8px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
            --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.55);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease, background-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            color: inherit;
            transition: all 0.25s ease;
        }

        input:focus,
        textarea:focus,
        button:focus {
            outline: 2px solid rgba(198, 40, 40, 0.6);
            outline-offset: 2px;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 96px 0;
        }

        .section-alt {
            background: var(--bg-alt);
        }

        .section-deep {
            background: var(--bg-deep);
        }

        .section-title {
            font-size: 1.625rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            margin-bottom: 12px;
            color: var(--text);
        }

        .section-sub {
            color: var(--text-secondary);
            font-size: 1rem;
            max-width: 640px;
            margin-bottom: 48px;
        }

        .divider-line {
            width: 48px;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 2px;
            margin-bottom: 16px;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-width: 160px;
            height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: all 0.25s ease;
            text-align: center;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 18px rgba(198, 40, 40, 0.35);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(198, 40, 40, 0.5);
        }

        .btn-primary:active {
            background: var(--primary-active);
            transform: translateY(0);
        }

        .btn-secondary {
            background: transparent;
            border: 1px solid var(--border-hover);
            color: var(--accent);
        }

        .btn-secondary:hover {
            border-color: var(--accent);
            background: rgba(255, 184, 0, 0.08);
            transform: translateY(-2px);
        }

        .btn-secondary:active {
            transform: translateY(0);
        }

        .btn-lg {
            min-width: 220px;
            height: 56px;
            font-size: 1.0625rem;
            padding: 0 40px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            height: 64px;
            background: rgba(19, 20, 23, 0.95);
            border-bottom: 1px solid var(--border);
            backdrop-filter: blur(12px);
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            background: rgba(13, 14, 16, 0.98);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        .nav-left {
            display: flex;
            align-items: center;
            gap: 36px;
        }

        .nav-brand {
            font-size: 1.375rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: var(--text);
            white-space: nowrap;
            display: flex;
            align-items: center;
        }

        .logo-accent {
            color: var(--accent);
            margin: 0 2px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .nav-link {
            position: relative;
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 0;
            white-space: nowrap;
            transition: color 0.25s ease;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
            transform: scaleX(0);
            transform-origin: center;
            transition: transform 0.25s ease;
        }

        .nav-link:hover {
            color: var(--text);
        }

        .nav-link:hover::after {
            transform: scaleX(1);
        }

        .nav-link.active {
            color: var(--text);
        }

        .nav-link.active::after {
            transform: scaleX(1);
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .search-btn {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.04);
        }

        .search-btn:hover {
            border-color: var(--primary);
            color: var(--text);
        }

        .search-btn svg {
            width: 18px;
            height: 18px;
        }

        .nav-cta {
            min-width: 120px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            font-size: 0.875rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0 20px;
            box-shadow: 0 2px 12px rgba(198, 40, 40, 0.35);
        }

        .nav-cta:hover {
            background: var(--primary-hover);
            transform: translateY(-1px);
        }

        .menu-btn {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            align-items: center;
            justify-content: center;
            color: var(--text);
            font-size: 1.25rem;
            background: rgba(255, 255, 255, 0.04);
        }

        .menu-btn:hover {
            border-color: var(--primary);
        }

        /* ===== Hero ===== */
        .category-hero {
            position: relative;
            padding: 160px 0 80px;
            background: linear-gradient(135deg, rgba(13, 14, 16, 0.92), rgba(19, 20, 23, 0.72)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(198, 40, 40, 0.18) 0%, transparent 70%);
            pointer-events: none;
        }

        .category-hero .container {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8125rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .breadcrumb a {
            color: var(--text-muted);
        }

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

        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.3);
        }

        .hero-title {
            font-size: clamp(1.75rem, 3.5vw, 2.75rem);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: 0.01em;
            margin-bottom: 20px;
            max-width: 720px;
        }

        .hero-title .highlight {
            color: var(--accent);
        }

        .hero-desc {
            font-size: 1.0625rem;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 680px;
            margin-bottom: 32px;
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 32px;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 0.8125rem;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border);
            color: var(--text-secondary);
        }

        .tag span {
            color: var(--accent);
            margin-right: 6px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== Gameplay Cards ===== */
        .gameplay-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 24px;
        }

        .gameplay-card {
            position: relative;
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px;
            overflow: hidden;
            transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
            min-height: 280px;
            display: flex;
            flex-direction: column;
        }

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

        .gameplay-card .card-num {
            position: absolute;
            top: 16px;
            right: 24px;
            font-size: 4rem;
            font-weight: 800;
            color: rgba(255, 255, 255, 0.03);
            line-height: 1;
            transition: color 0.3s ease;
        }

        .gameplay-card:hover .card-num {
            color: rgba(198, 40, 40, 0.2);
        }

        .card-media {
            border-radius: 12px;
            overflow: hidden;
            margin-bottom: 20px;
            background: linear-gradient(145deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01));
        }

        .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .gameplay-card:hover .card-media img {
            transform: scale(1.04);
        }

        .card-media.ratio-16x9 {
            aspect-ratio: 16 / 9;
        }

        .card-media.ratio-4x3 {
            aspect-ratio: 4 / 3;
        }

        .card-body {
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(198, 40, 40, 0.15);
            color: #ff8a80;
            margin-bottom: 12px;
            align-self: flex-start;
        }

        .card-title {
            font-size: 1.125rem;
            font-weight: 600;
            letter-spacing: 0.01em;
            margin-bottom: 8px;
        }

        .card-text {
            font-size: 0.875rem;
            color: var(--text-secondary);
            margin-bottom: 16px;
            flex: 1;
        }

        .card-link {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .card-link:hover {
            color: var(--accent-hover);
            gap: 10px;
        }

        .gameplay-sub {
            display: flex;
            flex-direction: column;
            gap: 24px;
            height: 100%;
        }

        .gameplay-card.small-card {
            min-height: 0;
            flex: 1;
            padding: 20px;
        }

        /* ===== Reward Podium ===== */
        .podium-grid {
            display: flex;
            align-items: flex-end;
            justify-content: center;
            gap: 20px;
            padding: 0 16px;
            min-height: 360px;
            position: relative;
        }

        .podium-card {
            border-radius: var(--radius);
            padding: 32px 28px;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            border: 1px solid var(--border);
            position: relative;
            overflow: hidden;
            flex: 1;
            max-width: 320px;
            transition: transform 0.3s ease, border-color 0.3s ease;
        }

        .podium-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-hover);
        }

        .podium-rank {
            font-size: 0.875rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 12px;
            opacity: 0.85;
        }

        .podium-icon {
            font-size: 2.5rem;
            margin-bottom: 12px;
        }

        .podium-value {
            font-size: clamp(1.5rem, 3vw, 2rem);
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 8px;
        }

        .podium-label {
            font-size: 0.875rem;
            color: var(--text-secondary);
        }

        .podium-card.first {
            height: 320px;
            border-color: rgba(255, 184, 0, 0.35);
            background: linear-gradient(145deg, rgba(198, 40, 40, 0.25), rgba(19, 20, 23, 0.9) 60%);
            box-shadow: 0 0 60px rgba(198, 40, 40, 0.15);
            flex: 1.2;
            max-width: 380px;
        }

        .podium-card.first::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
        }

        .podium-card.second {
            height: 220px;
            background: rgba(255, 255, 255, 0.03);
        }

        .podium-card.third {
            height: 180px;
            background: rgba(255, 255, 255, 0.02);
        }

        .podium-link {
            margin-top: 28px;
            text-align: center;
            font-size: 0.875rem;
        }

        .podium-link a {
            color: var(--accent);
            border-bottom: 1px solid rgba(255, 184, 0, 0.3);
            padding-bottom: 2px;
        }

        .podium-link a:hover {
            color: var(--accent-hover);
            border-color: var(--accent);
        }

        /* ===== Progress ===== */
        .progress-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }

        .steps-list {
            position: relative;
            padding-left: 0;
            list-style: none;
        }

        .steps-list li {
            position: relative;
            padding-left: 48px;
            padding-bottom: 36px;
            min-height: 72px;
        }

        .steps-list li:last-child {
            padding-bottom: 0;
        }

        .steps-list li::before {
            content: '';
            position: absolute;
            left: 11px;
            top: 28px;
            bottom: 0;
            width: 2px;
            background: rgba(255, 255, 255, 0.1);
        }

        .steps-list li:last-child::before {
            display: none;
        }

        .steps-list li.done::before {
            background: var(--primary);
        }

        .steps-list li.current::before {
            background: linear-gradient(180deg, var(--primary), rgba(255, 184, 0, 0.4));
        }

        .step-dot {
            position: absolute;
            left: 0;
            top: 4px;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            z-index: 2;
            transition: all 0.3s ease;
        }

        .step-dot.done {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 0 0 4px rgba(198, 40, 40, 0.15);
        }

        .step-dot.current {
            border: 2px solid var(--accent);
            background: var(--bg);
            color: var(--accent);
            box-shadow: 0 0 0 4px rgba(255, 184, 0, 0.1), 0 0 16px rgba(255, 184, 0, 0.4);
            animation: pulse-dot 2s infinite;
        }

        .step-dot.pending {
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-muted);
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 4px rgba(255, 184, 0, 0.1), 0 0 10px rgba(255, 184, 0, 0.3);
            }
            50% {
                box-shadow: 0 0 0 8px rgba(255, 184, 0, 0.05), 0 0 24px rgba(255, 184, 0, 0.5);
            }
        }

        .step-name {
            font-weight: 600;
            font-size: 1.0625rem;
            margin-bottom: 4px;
        }

        .step-desc {
            font-size: 0.875rem;
            color: var(--text-secondary);
        }

        .step-meta {
            font-size: 0.8125rem;
            color: var(--text-muted);
            margin-top: 12px;
            display: inline-flex;
            align-items: center;
            gap: 24px;
        }

        .progress-panel {
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px;
        }

        .progress-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 24px;
        }

        .progress-header h3 {
            font-size: 1.125rem;
            font-weight: 600;
        }

        .progress-percent {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent);
            font-variant-numeric: tabular-nums;
        }

        .progress-bar {
            height: 8px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 4px;
            overflow: hidden;
            margin-bottom: 32px;
        }

        .progress-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 4px;
            width: 45%;
            transition: width 0.6s ease;
        }

        .task-list {
            list-style: none;
        }

        .task-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 0.9375rem;
        }

        .task-item:last-child {
            border-bottom: none;
        }

        .task-state {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            flex-shrink: 0;
        }

        .task-state.done {
            background: #4CAF50;
            box-shadow: 0 0 8px rgba(76, 175, 80, 0.4);
        }

        .task-state.current {
            background: var(--accent);
            box-shadow: 0 0 10px rgba(255, 184, 0, 0.6);
            animation: pulse-dot 2s infinite;
        }

        .task-state.pending {
            background: rgba(255, 255, 255, 0.15);
        }

        .task-name {
            flex: 1;
            color: var(--text);
        }

        .task-date {
            font-size: 0.8125rem;
            color: var(--text-muted);
            font-variant-numeric: tabular-nums;
        }

        .task-status-text {
            font-size: 0.8125rem;
            color: var(--text-secondary);
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: 12px;
            margin-bottom: 16px;
            overflow: hidden;
            transition: border-color 0.3s ease;
        }

        .faq-item.active {
            border-color: rgba(198, 40, 40, 0.3);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 24px;
            height: 56px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            cursor: pointer;
            position: relative;
            transition: color 0.2s ease;
        }

        .faq-question::before {
            content: '';
            position: absolute;
            left: 0;
            top: 14px;
            bottom: 14px;
            width: 3px;
            border-radius: 2px;
            background: var(--primary);
            opacity: 0.7;
        }

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

        .faq-icon {
            font-size: 1.25rem;
            color: var(--text-muted);
            transition: transform 0.3s ease, color 0.3s ease;
            line-height: 1;
            flex-shrink: 0;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            color: var(--accent);
        }

        .faq-answer-wrap {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-answer {
            padding: 0 24px 20px;
            font-size: 0.9375rem;
            color: var(--text-secondary);
            line-height: 1.75;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            padding-top: 16px;
            margin-top: 0;
        }

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

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            background: linear-gradient(135deg, #0D0E10, #1B1C20);
            padding: 120px 0;
            text-align: center;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: repeating-linear-gradient(45deg, transparent, transparent 12px, rgba(255, 184, 0, 0.03) 12px, rgba(255, 184, 0, 0.03) 13px);
            pointer-events: none;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-title {
            font-size: clamp(1.5rem, 3vw, 2.25rem);
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        .cta-sub {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-bottom: 40px;
            max-width: 480px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border);
            padding: 64px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-brand .logo {
            font-size: 1.375rem;
            font-weight: 800;
            margin-bottom: 16px;
            display: inline-block;
        }

        .footer-brand p {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 360px;
        }

        .footer-title {
            font-size: 0.9375rem;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--text);
        }

        .footer-links {
            list-style: none;
        }

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

        .footer-links a {
            font-size: 0.875rem;
            color: var(--text-secondary);
        }

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

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 20px 0;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 0.8125rem;
            color: var(--text-muted);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .gameplay-grid {
                grid-template-columns: 1fr;
            }
            .podium-grid {
                flex-wrap: wrap;
            }
            .podium-card {
                max-width: 280px;
            }
            .podium-card.first {
                order: -1;
                flex: 1 1 100%;
                max-width: 380px;
                margin: 0 auto;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            .section {
                padding: 56px 0;
            }
            .section-sub {
                margin-bottom: 32px;
            }
            .nav-container {
                height: 60px;
            }
            .site-header {
                height: 60px;
            }
            .main-nav {
                position: fixed;
                top: 60px;
                left: 0;
                right: 0;
                background: rgba(13, 14, 16, 0.98);
                flex-direction: column;
                align-items: flex-start;
                padding: 20px 24px;
                gap: 16px;
                border-bottom: 1px solid var(--border);
                transform: translateY(-120%);
                transition: transform 0.3s ease;
                display: none;
            }
            .main-nav.open {
                transform: translateY(0);
                display: flex;
            }
            .menu-btn {
                display: flex;
            }
            .nav-cta {
                display: none;
            }
            .search-btn {
                width: 36px;
                height: 36px;
            }
            .nav-brand {
                font-size: 1.125rem;
            }
            .category-hero {
                padding: 120px 0 56px;
            }
            .hero-title {
                font-size: 1.75rem;
            }
            .hero-actions .btn {
                min-width: 140px;
                height: 44px;
                padding: 0 20px;
            }
            .progress-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .podium-grid {
                gap: 12px;
            }
            .podium-card.first {
                height: 260px;
            }
            .podium-card.second {
                height: 180px;
            }
            .podium-card.third {
                height: 160px;
            }
            .podium-card {
                padding: 20px 16px;
            }
            .cta-section {
                padding: 80px 0;
            }
            .cta-buttons .btn {
                min-width: 140px;
                height: 44px;
            }
        }

        @media (max-width: 480px) {
            .hero-tags {
                gap: 8px;
            }
            .tag {
                font-size: 0.75rem;
                padding: 4px 12px;
            }
            .gameplay-card {
                padding: 20px;
            }
            .card-title {
                font-size: 1rem;
            }
            .podium-grid {
                flex-direction: column;
                align-items: center;
            }
            .podium-card,
            .podium-card.first,
            .podium-card.second,
            .podium-card.third {
                width: 100%;
                max-width: 320px;
                height: auto;
                min-height: 160px;
                margin-bottom: 12px;
            }
            .podium-card.first {
                order: 0;
                min-height: 220px;
            }
            .faq-question {
                padding: 0 16px;
                font-size: 0.9375rem;
            }
            .faq-answer {
                padding: 0 16px 16px;
            }
            .task-item {
                flex-wrap: wrap;
                gap: 8px;
            }
            .task-date {
                width: 100%;
                margin-left: 24px;
            }
        }

/* roulang page: article */
:root {
            --primary: #C62828;
            --primary-hover: #E53935;
            --primary-active: #B71C1C;
            --accent: #FFB800;
            --accent-hover: #FFC533;
            --bg: #131417;
            --bg-alt: #1B1C20;
            --bg-deep: #0D0E10;
            --text: #F8F9FA;
            --text-secondary: #9CA3AF;
            --text-muted: #6B7280;
            --border: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(255, 255, 255, 0.2);
            --radius: 16px;
            --radius-sm: 8px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
            --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.5);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
        }

        button {
            font-family: inherit;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(23, 23, 26, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }

        .nav-container {
            display: flex;
            align-items: center;
            height: 56px;
            justify-content: space-between;
        }

        .logo {
            font-size: 1.25rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: var(--text);
            white-space: nowrap;
        }

        .logo-accent {
            color: var(--accent);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-left: 32px;
            flex: 1;
        }

        .nav-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: color 0.2s ease, background 0.2s ease;
        }

        .nav-link:hover {
            color: var(--primary-hover);
            background: rgba(198, 40, 40, 0.08);
        }

        .nav-link.active {
            color: var(--primary-hover);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 4px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

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

        .btn-nav {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 120px;
            height: 36px;
            padding: 0 16px;
            background: var(--primary);
            color: #fff;
            font-size: 0.875rem;
            font-weight: 600;
            border-radius: 8px;
            border: none;
            cursor: pointer;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
        }

        .btn-nav:hover {
            background: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(198, 40, 40, 0.35);
        }

        .btn-nav:active {
            background: var(--primary-active);
            transform: translateY(0);
        }

        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border);
            border-radius: 8px;
            color: var(--text);
            font-size: 1.25rem;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: border-color 0.2s ease, background 0.2s ease;
        }

        .mobile-toggle:hover {
            border-color: var(--primary);
            background: rgba(198, 40, 40, 0.1);
        }

        /* ========== 面包屑 ========== */
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            padding: 28px 0 12px;
            font-size: 0.875rem;
            color: var(--text-muted);
        }

        .breadcrumb a {
            color: var(--text-muted);
            transition: color 0.2s ease;
        }

        .breadcrumb a:hover {
            color: var(--primary-hover);
        }

        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.2);
        }

        .crumb-current {
            max-width: 260px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            color: var(--text-secondary);
        }

        /* ========== 文章头 ========== */
        .article-header {
            padding: 8px 0 32px;
        }

        .article-category {
            display: inline-flex;
            align-items: center;
            padding: 4px 14px;
            background: rgba(198, 40, 40, 0.15);
            color: #ff6b6b;
            border-radius: 999px;
            font-size: 0.8125rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            margin-bottom: 16px;
        }

        .article-title {
            font-size: clamp(1.5rem, 3vw, 2.25rem);
            font-weight: 800;
            line-height: 1.35;
            letter-spacing: 0.01em;
            color: var(--text);
            margin: 0 0 16px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            font-size: 0.875rem;
            color: var(--text-muted);
        }

        .article-meta .dot {
            color: rgba(255, 255, 255, 0.2);
        }

        .article-divider {
            height: 1px;
            background: linear-gradient(90deg, rgba(198, 40, 40, 0.4), rgba(255, 255, 255, 0.08) 40%, rgba(255, 255, 255, 0.08));
            margin-bottom: 40px;
        }

        /* ========== 正文排版 ========== */
        .article-body {
            max-width: 720px;
            margin: 0 auto;
            padding: 8px 0 56px;
        }

        .article-content {
            font-size: 1rem;
            line-height: 1.9;
            color: #c3c9d4;
        }

        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text);
            margin: 2.2em 0 0.8em;
            padding-left: 14px;
            border-left: 3px solid var(--primary);
            letter-spacing: 0.01em;
        }

        .article-content h3 {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--text);
            margin: 1.8em 0 0.6em;
        }

        .article-content p {
            margin-bottom: 1.5em;
            color: #c3c9d4;
        }

        .article-content ul,
        .article-content ol {
            margin: 0 0 1.5em;
            padding-left: 1.5em;
            color: #c3c9d4;
        }

        .article-content li {
            margin-bottom: 0.5em;
        }

        .article-content blockquote {
            margin: 1.8em 0;
            padding: 16px 20px;
            background: rgba(255, 255, 255, 0.03);
            border-left: 3px solid var(--accent);
            border-radius: 0 8px 8px 0;
            color: var(--text-secondary);
        }

        .article-content figure {
            margin: 2em 0;
        }

        .article-content figure img {
            border-radius: 12px;
            border: 1px solid var(--border);
        }

        .article-content figcaption {
            text-align: center;
            color: var(--text-muted);
            font-size: 0.8125rem;
            padding-top: 8px;
        }

        .article-content a {
            color: var(--primary-hover);
            text-decoration: underline;
            text-underline-offset: 4px;
            transition: color 0.2s ease;
        }

        .article-content a:hover {
            color: var(--accent);
        }

        .article-content img {
            border-radius: 12px;
        }

        /* ========== 相关阅读 ========== */
        .related-section {
            max-width: 1080px;
            margin: 0 auto;
            padding: 56px 0;
            border-top: 1px solid var(--border);
        }

        .section-title {
            font-size: 1.625rem;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 0.02em;
            margin-bottom: 24px;
        }

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

        .related-card {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px;
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
        }

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

        .related-card:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .related-thumb {
            flex-shrink: 0;
            width: 120px;
            height: 80px;
            border-radius: 10px;
            overflow: hidden;
            background: linear-gradient(135deg, #1b1c20, #131417);
        }

        .related-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .related-card:hover .related-thumb img {
            transform: scale(1.05);
        }

        .related-info h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            margin: 8px 0 0;
            line-height: 1.5;
            transition: color 0.2s ease;
        }

        .related-card:hover .related-info h3 {
            color: var(--primary-hover);
        }

        .related-info p {
            margin: 4px 0 0;
            font-size: 0.8125rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 2px 10px;
            background: rgba(198, 40, 40, 0.15);
            color: #ff6b6b;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        /* ========== 返回链接 ========== */
        .back-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--text-secondary);
            font-size: 0.9375rem;
            margin: 24px 0 64px;
            transition: color 0.2s ease, transform 0.2s ease;
        }

        .back-link:hover {
            color: var(--primary-hover);
            transform: translateX(-2px);
        }

        .back-link:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 4px;
            border-radius: 4px;
        }

        /* ========== 未找到 ========== */
        .not-found-wrap {
            min-height: 60vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 40px 0;
        }

        .not-found-box {
            text-align: center;
            padding: 48px;
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            max-width: 360px;
            width: 100%;
        }

        .not-found-box h1 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 16px;
        }

        .not-found-box .btn-back {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 160px;
            height: 48px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            font-weight: 600;
            font-size: 0.9375rem;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
        }

        .not-found-box .btn-back:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(198, 40, 40, 0.35);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border);
            padding: 56px 0 32px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin: 12px 0 0;
            max-width: 320px;
            line-height: 1.7;
        }

        .footer-title {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            gap: 10px;
        }

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.875rem;
            transition: color 0.2s ease, padding-left 0.2s ease;
        }

        .footer-links a:hover {
            color: var(--primary-hover);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            color: var(--text-muted);
            font-size: 0.8125rem;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }

            .main-nav {
                display: none;
                position: absolute;
                top: 56px;
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: stretch;
                background: rgba(23, 23, 26, 0.98);
                padding: 16px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
            }

            .main-nav.open {
                display: flex;
            }

            .nav-link {
                padding: 12px 16px;
            }

            .nav-link.active::after {
                left: 16px;
                right: auto;
                bottom: 8px;
                width: 24px;
            }

            .mobile-toggle {
                display: inline-flex;
            }

            .btn-nav {
                min-width: auto;
                padding: 0 14px;
                font-size: 0.8125rem;
            }

            .related-grid {
                grid-template-columns: 1fr;
            }

            .related-thumb {
                width: 96px;
                height: 64px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .article-body {
                padding-bottom: 40px;
            }

            .related-section {
                padding: 40px 0;
            }

            .breadcrumb {
                padding-top: 20px;
            }

            .article-header {
                padding-bottom: 24px;
            }

            .article-divider {
                margin-bottom: 32px;
            }
        }

        @media (max-width: 520px) {
            .logo {
                font-size: 1.05rem;
            }

            .btn-nav {
                min-width: 0;
                width: 40px;
                height: 36px;
                padding: 0;
                font-size: 0;
            }

            .btn-nav::before {
                content: '参与';
                font-size: 0.8125rem;
            }

            .related-card {
                flex-direction: column;
                align-items: flex-start;
            }

            .related-thumb {
                width: 100%;
                height: 140px;
            }

            .back-link {
                margin-bottom: 40px;
            }

            .crumb-current {
                max-width: 160px;
            }
        }