/* roulang page: index */
/* ========== 设计变量 ========== */
        :root {
            --bg-deep: #0A0E13;
            --bg-dark: #0D141B;
            --bg-card: #111922;
            --bg-footer: #070A0E;
            --accent-primary: #FF4D2E;
            --accent-secondary: #FFB224;
            --accent-success: #2FE6A7;
            --text-main: #F2F5F7;
            --text-muted: #9AA8B4;
            --border-color: rgba(255, 255, 255, 0.08);
            --radius-card: 12px;
            --radius-btn: 8px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.3);
            --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

        /* ========== Reset / Base ========== */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-main);
            background-color: var(--bg-deep);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }
        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }
        ul, ol {
            list-style: none;
        }
        /* 去除默认蓝色链接 */
        a:not(.btn-brand):not(.btn-ghost):not(.footer-link) {
            color: inherit;
        }
        a:hover {
            color: var(--accent-primary);
        }

        /* ========== 容器 ========== */
        .container-main {
            max-width: 80rem;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }
        @media (min-width: 640px) {
            .container-main {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }
        @media (min-width: 1024px) {
            .container-main {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* ========== 板块间距 ========== */
        .section-pad {
            padding-top: 5rem;
            padding-bottom: 5rem;
        }
        @media (min-width: 1024px) {
            .section-pad {
                padding-top: 7rem;
                padding-bottom: 7rem;
            }
        }

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background-color: rgba(10, 14, 19, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--accent-primary), #c22f14);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 900;
            color: #fff;
            flex-shrink: 0;
            box-shadow: 0 0 20px rgba(255, 77, 46, 0.3);
        }
        .logo-text {
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--text-main);
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--accent-primary);
        }
        .nav-links {
            display: none;
            align-items: center;
            gap: 2rem;
        }
        .nav-links a {
            font-size: 0.95rem;
            color: var(--text-muted);
            font-weight: 500;
            padding: 0.25rem 0;
            position: relative;
            transition: color 0.2s;
        }
        .nav-links a:hover {
            color: var(--accent-primary);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 2px;
            background: var(--accent-primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.3s ease;
        }
        .nav-links a:hover::after {
            transform: scaleX(1);
        }
        .nav-links a.active {
            color: var(--text-main);
            font-weight: 600;
        }
        .nav-links a.active::after {
            transform: scaleX(1);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .btn-brand {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--accent-primary);
            color: #fff !important;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.65rem 1.5rem;
            border-radius: var(--radius-btn);
            transition: all 0.25s ease;
            box-shadow: 0 2px 10px rgba(255, 77, 46, 0.25);
            border: 1px solid transparent;
            white-space: nowrap;
        }
        .btn-brand:hover {
            background: #ff6a4d;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 77, 46, 0.35);
            color: #fff !important;
        }
        .btn-brand:active {
            transform: translateY(0);
        }
        .btn-brand:focus-visible {
            outline: none;
            box-shadow: 0 0 0 4px rgba(255, 77, 46, 0.3);
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--text-muted) !important;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.65rem 1.5rem;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(255, 255, 255, 0.25);
            transition: all 0.25s ease;
            white-space: nowrap;
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-main) !important;
            border-color: rgba(255, 255, 255, 0.4);
        }
        .btn-ghost:focus-visible {
            outline: none;
            box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.15);
        }
        .btn-ghost:active {
            transform: scale(0.98);
        }
        /* 汉堡 */
        .menu-toggle {
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            transition: border-color 0.3s;
        }
        .menu-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: all 0.3s;
        }
        .menu-toggle.open span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }
        .menu-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.open span:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }
        /* 移动端菜单 */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--bg-deep);
            padding: 2rem 1.5rem;
            z-index: 40;
            overflow-y: auto;
            border-top: 1px solid var(--border-color);
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu nav {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .mobile-menu nav a {
            font-size: 1.2rem;
            font-weight: 600;
            padding: 0.75rem 0;
            border-bottom: 1px solid var(--border-color);
            color: var(--text-main);
        }
        .mobile-menu nav a:hover {
            color: var(--accent-primary);
        }
        .mobile-menu .mobile-cta {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            margin-top: 2rem;
        }
        .mobile-menu .mobile-cta .btn-brand,
        .mobile-menu .mobile-cta .btn-ghost {
            width: 100%;
            padding: 0.85rem;
        }

        /* ========== Hero 首屏 ========== */
        .hero-section {
            position: relative;
            min-height: 90vh;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 14, 19, 0.95) 0%, rgba(10, 14, 19, 0.85) 50%, rgba(10, 14, 19, 0.7) 100%);
        }
        .hero-overlay::after {
            content: '';
            position: absolute;
            inset: 0;
            background-image: radial-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px);
            background-size: 24px 24px;
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            padding: 5rem 0;
            display: grid;
            gap: 3rem;
        }
        @media (min-width: 1024px) {
            .hero-content {
                grid-template-columns: 1.2fr 0.8fr;
                align-items: center;
                gap: 4rem;
                padding: 6rem 0;
            }
        }
        .hero-badge {
            display: inline-block;
            padding: 0.35rem 1rem;
            border-radius: 9999px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-secondary);
            border: 1px solid rgba(255, 178, 36, 0.4);
            background: rgba(255, 178, 36, 0.08);
            margin-bottom: 1.5rem;
            letter-spacing: 0.02em;
        }
        .hero-title {
            font-size: 2.25rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 1.5rem;
            color: var(--text-main);
        }
        .hero-title .highlight {
            color: var(--accent-primary);
        }
        @media (min-width: 768px) {
            .hero-title {
                font-size: 3.25rem;
            }
        }
        @media (min-width: 1024px) {
            .hero-title {
                font-size: 3.5rem;
            }
        }
        .hero-subtitle {
            font-size: 1.1rem;
            line-height: 1.75;
            color: var(--text-muted);
            margin-bottom: 2rem;
            max-width: 540px;
        }
        @media (min-width: 768px) {
            .hero-subtitle {
                font-size: 1.2rem;
            }
        }
        .hero-cta {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 1.5rem;
        }
        .hero-trust {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
        }
        .hero-trust .dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--accent-success);
            display: inline-block;
        }
        /* Hero 右侧终端卡片 */
        .terminal-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transform: perspective(1200px) rotateY(-3deg) rotateX(2deg);
            transition: transform 0.4s ease, box-shadow 0.4s ease;
        }
        .terminal-card:hover {
            transform: perspective(1200px) rotateY(-1deg) rotateX(0deg) translateY(-4px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
        }
        .terminal-header {
            background: rgba(255, 255, 255, 0.04);
            padding: 0.85rem 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            border-bottom: 1px solid var(--border-color);
        }
        .terminal-header .dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            flex-shrink: 0;
        }
        .terminal-body {
            padding: 0;
            position: relative;
            overflow: hidden;
        }
        .terminal-body img {
            width: 100%;
            height: 240px;
            object-fit: cover;
        }
        @media (min-width: 768px) {
            .terminal-body img {
                height: 280px;
            }
        }
        .terminal-footer {
            padding: 1rem 1.25rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--border-color);
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .terminal-footer .status {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: var(--accent-success);
            font-weight: 600;
        }
        .floating-badge {
            position: absolute;
            top: -12px;
            right: 20px;
            background: var(--accent-secondary);
            color: #0A0E13;
            font-size: 0.8rem;
            font-weight: 700;
            padding: 0.35rem 0.9rem;
            border-radius: 9999px;
            box-shadow: 0 4px 16px rgba(255, 178, 36, 0.4);
            z-index: 3;
            animation: pulse-badge 2s ease-in-out infinite;
        }
        @keyframes pulse-badge {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.05); }
        }

        /* ========== 信息条 ========== */
        .info-bar {
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            background: var(--bg-dark);
            padding: 0.85rem 0;
            overflow: hidden;
            white-space: nowrap;
            position: relative;
        }
        .info-bar-track {
            display: inline-block;
            animation: scroll-x 30s linear infinite;
        }
        .info-bar-track span {
            margin-right: 2.5rem;
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: color 0.2s;
        }
        .info-bar-track span:hover {
            color: var(--accent-primary);
        }
        @keyframes scroll-x {
            0% { transform: translateX(0); }
            100% { transform: translateX(-50%); }
        }

        /* ========== 痛点区 ========== */
        .section-title {
            font-size: 1.75rem;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.01em;
            margin-bottom: 1rem;
            color: var(--text-main);
        }
        @media (min-width: 768px) {
            .section-title {
                font-size: 2.25rem;
            }
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 640px;
            margin-bottom: 2.5rem;
            line-height: 1.75;
        }
        .pain-grid {
            display: grid;
            gap: 1.5rem;
        }
        @media (min-width: 768px) {
            .pain-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .pain-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 2rem;
            }
        }
        .pain-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 1.75rem;
            position: relative;
            overflow: hidden;
            transition: all 0.3s ease;
            border-left: 4px solid var(--accent-primary);
        }
        .pain-card:hover {
            transform: translateY(-6px);
            border-color: rgba(255, 178, 36, 0.5);
            box-shadow: 0 16px 32px rgba(0, 0, 0, 0.4);
        }
        .pain-card:hover::after {
            opacity: 1;
        }
        .pain-card::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 80px;
            height: 80px;
            background: radial-gradient(circle, rgba(255, 77, 46, 0.08) 0%, transparent 70%);
            opacity: 0.5;
            transition: opacity 0.3s;
        }
        .pain-icon {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background: rgba(255, 77, 46, 0.1);
            border: 1px solid rgba(255, 77, 46, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 1rem;
        }
        .pain-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            color: var(--text-main);
        }
        .pain-card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .pain-banner {
            margin-top: 1.5rem;
            background: rgba(255, 77, 46, 0.08);
            border: 1px dashed rgba(255, 77, 46, 0.3);
            border-radius: var(--radius-card);
            padding: 1.25rem 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            flex-wrap: wrap;
            transition: border-color 0.3s;
        }
        .pain-banner:hover {
            border-color: rgba(255, 77, 46, 0.6);
        }
        .pain-banner span {
            font-size: 1rem;
            color: var(--text-main);
            font-weight: 500;
        }
        .pain-banner a {
            color: var(--accent-primary);
            font-weight: 600;
            font-size: 0.95rem;
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            transition: gap 0.2s;
            white-space: nowrap;
        }
        .pain-banner a:hover {
            gap: 0.6rem;
            color: #ff6a4d;
        }

        /* ========== 解决方案区 ========== */
        .solution-section {
            background: var(--bg-deep);
            position: relative;
        }
        .solution-grid {
            display: grid;
            gap: 3rem;
        }
        @media (min-width: 1024px) {
            .solution-grid {
                grid-template-columns: 0.9fr 1.1fr;
                gap: 4rem;
                align-items: start;
            }
        }
        .solution-left {
            position: sticky;
            top: 100px;
        }
        .solution-tag {
            display: inline-block;
            padding: 0.3rem 0.9rem;
            border-radius: 9999px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent-secondary);
            background: rgba(255, 178, 36, 0.08);
            border: 1px solid rgba(255, 178, 36, 0.3);
            margin-bottom: 1.25rem;
        }
        .solution-left h2 {
            font-size: 1.75rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 1rem;
        }
        @media (min-width: 768px) {
            .solution-left h2 {
                font-size: 2.25rem;
            }
        }
        .solution-left>p {
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 1.75rem;
            font-size: 1rem;
        }
        .solution-features {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 1.5rem;
        }
        .solution-feature-item {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.98rem;
            color: var(--text-main);
            font-weight: 500;
        }
        .solution-feature-item .check {
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: rgba(47, 230, 167, 0.15);
            border: 1px solid rgba(47, 230, 167, 0.4);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            color: var(--accent-success);
            flex-shrink: 0;
        }
        .solution-cards {
            display: grid;
            gap: 1.25rem;
        }
        @media (min-width: 768px) {
            .solution-cards {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        .sol-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        .sol-card:hover {
            transform: translateY(-6px);
            border-color: rgba(255, 178, 36, 0.5);
            box-shadow: 0 16px 32px rgba(0, 0, 0, 0.4);
        }
        .sol-card-img {
            overflow: hidden;
            height: 160px;
            position: relative;
        }
        .sol-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .sol-card:hover .sol-card-img img {
            transform: scale(1.05);
        }
        .sol-card-body {
            padding: 1.25rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .sol-card-body h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--text-main);
            line-height: 1.4;
        }
        .sol-card-body p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 1rem;
            flex: 1;
        }
        .sol-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .sol-card-footer .tags {
            display: flex;
            gap: 0.4rem;
        }
        .sol-tag {
            font-size: 0.7rem;
            color: var(--text-muted);
            border: 1px solid var(--border-color);
            border-radius: 9999px;
            padding: 0.15rem 0.55rem;
            background: rgba(255, 255, 255, 0.02);
        }
        .sol-link {
            font-size: 0.82rem;
            color: var(--accent-secondary);
            font-weight: 600;
            transition: color 0.2s;
        }
        .sol-link:hover {
            color: #ffc95c;
        }

        /* ========== 成果数据区 ========== */
        .stats-section {
            background: var(--bg-dark);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            padding: 3.5rem 0;
        }
        @media (min-width: 1024px) {
            .stats-section {
                padding: 4.5rem 0;
            }
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 2rem 1rem;
        }
        @media (min-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(4, 1fr);
                gap: 0;
            }
        }
        .stat-item {
            text-align: center;
            padding: 0.75rem;
            position: relative;
        }
        @media (min-width: 768px) {
            .stat-item:not(:last-child)::after {
                content: '';
                position: absolute;
                right: 0;
                top: 20%;
                height: 60%;
                width: 1px;
                background: var(--border-color);
            }
        }
        .stat-value {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--accent-secondary);
            font-family: 'Courier New', monospace;
            line-height: 1.2;
            margin-bottom: 0.25rem;
        }
        @media (min-width: 768px) {
            .stat-value {
                font-size: 2.25rem;
            }
        }
        .stat-label {
            font-size: 0.88rem;
            color: var(--text-muted);
        }

        /* ========== 步骤三连 ========== */
        .steps-section {
            background: var(--bg-deep);
        }
        .steps-grid {
            display: grid;
            gap: 2rem;
            margin-top: 3rem;
        }
        @media (min-width: 768px) {
            .steps-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 1.5rem;
            }
        }
        .step-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 2rem 1.75rem;
            position: relative;
            transition: all 0.3s ease;
            text-align: center;
        }
        .step-item:hover {
            transform: translateY(-6px);
            border-color: rgba(255, 178, 36, 0.4);
            box-shadow: 0 16px 32px rgba(0, 0, 0, 0.4);
        }
        .step-num {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--accent-primary), #e43a1f);
            color: #fff;
            font-size: 1.5rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.25rem;
            box-shadow: 0 6px 20px rgba(255, 77, 46, 0.3);
            font-family: 'Courier New', monospace;
        }
        .step-item h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: var(--text-main);
        }
        .step-item p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .step-item::before {
            content: '';
            position: absolute;
            top: 50%;
            right: -12px;
            width: 24px;
            height: 24px;
            background: var(--accent-secondary);
            clip-path: polygon(0 0, 100% 50%, 0 100%);
            display: none;
            z-index: 2;
            opacity: 0.3;
        }
        @media (min-width: 768px) {
            .step-item:not(:last-child)::before {
                display: block;
            }
        }

        /* ========== 资讯区 ========== */
        .news-section {
            background: var(--bg-dark);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .news-layout {
            display: grid;
            gap: 2.5rem;
        }
        @media (min-width: 1024px) {
            .news-layout {
                grid-template-columns: 1.3fr 0.7fr;
                gap: 3rem;
            }
        }
        .news-list {
            display: flex;
            flex-direction: column;
        }
        .news-item {
            padding: 1.5rem 0;
            border-bottom: 1px solid var(--border-color);
            transition: background 0.2s;
        }
        .news-item:first-child {
            padding-top: 0;
        }
        .news-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .news-item:hover {
            background: rgba(255, 255, 255, 0.01);
        }
        .news-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 0.4rem;
            display: flex;
            gap: 1rem;
        }
        .news-meta .badge {
            background: rgba(255, 77, 46, 0.15);
            color: var(--accent-primary);
            padding: 0.15rem 0.6rem;
            border-radius: 9999px;
            font-size: 0.72rem;
            font-weight: 600;
        }
        .news-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0.4rem;
            line-height: 1.4;
            transition: color 0.2s;
        }
        .news-title:hover {
            color: var(--accent-primary);
        }
        .news-desc {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.65;
        }
        .news-right {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 1.75rem;
            align-self: start;
        }
        .news-right h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 1.25rem;
            color: var(--text-main);
            padding-bottom: 0.75rem;
            border-bottom: 1px solid var(--border-color);
        }
        .news-right ul {
            display: flex;
            flex-direction: column;
            gap: 0.85rem;
        }
        .news-right ul li a {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.5;
            display: block;
            padding: 0.35rem 0;
            transition: color 0.2s, padding-left 0.2s;
        }
        .news-right ul li a:hover {
            color: var(--accent-secondary);
            padding-left: 0.5rem;
        }  
        .news-right .view-all {
            display: block;
            margin-top: 1.5rem;
            text-align: center;
            padding: 0.65rem;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: all 0.3s;
        }
        .news-right .view-all:hover {
            border-color: var(--accent-primary);
            color: var(--accent-primary);
        }

        /* ========== CTA 区 ========== */
        .cta-section {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
        }
        .cta-overlay {
            position: absolute;
            inset: 0;
            background: rgba(10, 14, 19, 0.85);
        }
        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 4.5rem 0;
        }
        @media (min-width: 1024px) {
            .cta-content {
                padding: 6rem 0;
            }
        }
        .cta-content h2 {
            font-size: 1.75rem;
            font-weight: 800;
            margin-bottom: 1rem;
            color: #fff;
            line-height: 1.3;
        }
        @media (min-width: 768px) {
            .cta-content h2 {
                font-size: 2.5rem;
            }
        }
        .cta-content p {
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto 2rem;
            font-size: 1rem;
            line-height: 1.75;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 1rem;
            flex-wrap: wrap;
        }

        /* ========== FAQ 区 ========== */
        .faq-section {
            background: var(--bg-deep);
        }
        .faq-wrap {
            max-width: 48rem;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-color);
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border-color);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.25rem 0.5rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-main);
            text-align: left;
            transition: color 0.2s;
            gap: 1rem;
        }
        .faq-question:hover {
            color: var(--accent-secondary);
        }
        .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            border: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            transition: transform 0.3s ease, background 0.3s, border-color 0.3s;
            flex-shrink: 0;
            color: var(--text-muted);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--accent-primary);
            border-color: var(--accent-primary);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }
        .faq-answer-inner {
            padding: 0 0.5rem 1.25rem;
            color: var(--text-muted);
            line-height: 1.8;
            font-size: 0.95rem;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--bg-footer);
            border-top: 1px solid var(--border-color);
            padding: 3.5rem 0 1.5rem;
        }
        .footer-grid {
            display: grid;
            gap: 2rem;
            margin-bottom: 2.5rem;
        }
        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-top: 1rem;
        }
        .footer-brand .footer-logo {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .footer-brand .footer-logo span {
            color: var(--accent-primary);
        }
        .footer-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 1.1rem;
            letter-spacing: 0.02em;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }
        .footer-links a {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: color 0.2s, padding-left 0.2s;
            display: inline-block;
        }
        .footer-links a:hover {
            color: var(--accent-primary);
            padding-left: 0.25rem;
        }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-muted);
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        @media (min-width: 768px) {
            .footer-bottom {
                flex-direction: row;
                justify-content: space-between;
                text-align: left;
            }
        }

        /* ========== 辅助类 ========== */
        .text-gradient-brand {
            background: linear-gradient(135deg, var(--accent-primary), #ff8a5c);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .content-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 1.5rem;
            transition: all 0.3s ease;
        }
        .content-card:hover {
            border-color: rgba(255, 178, 36, 0.5);
            transform: translateY(-4px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.4);
        }

        /* ========== 响应式 ========== */
        @media (min-width: 1024px) {
            .nav-links {
                display: flex;
            }
            .menu-toggle {
                display: none;
            }
            .mobile-menu {
                display: none !important;
            }
        }
        @media (max-width: 1023px) {
            .header-actions .btn-brand,
            .header-actions .btn-ghost {
                display: none;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.75rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .stat-value {
                font-size: 1.5rem;
            }
            .btn-brand, .btn-ghost {
                padding: 0.55rem 1.1rem;
                font-size: 0.88rem;
            }
            .logo-text {
                font-size: 1.1rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category1 */
/* ========== 设计变量 ========== */
:root {
  --bg-deep: #0A0E13;
  --bg-dark: #0D141B;
  --bg-card: #111922;
  --bg-footer: #070A0E;
  --accent-primary: #FF4D2E;
  --accent-secondary: #FFB224;
  --accent-success: #2FE6A7;
  --text-main: #F2F5F7;
  --text-muted: #9AA8B4;
  --border-color: rgba(255, 255, 255, 0.08);
  --radius-card: 12px;
  --radius-btn: 8px;
  --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.3);
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

/* ========== 基础 reset ========== */
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-main);
  background-color: var(--bg-deep);
  color: var(--text-main);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  margin: 0;
}
* {
  box-sizing: border-box;
}
img {
  max-width: 100%;
  display: block;
}
a {
  text-decoration: none;
  color: inherit;
  transition: color 0.2s ease;
}
button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}
a:not(.btn-brand):not(.btn-ghost):not(.footer-link) {
  color: inherit;
}
a:hover {
  color: var(--accent-primary);
}

/* ========== 容器 ========== */
.container-main {
  max-width: 80rem;
  margin: 0 auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}
@media (min-width: 768px) {
  .container-main {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}
@media (min-width: 1024px) {
  .container-main {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

/* ========== 板块间距 ========== */
.section-pad {
  padding-top: 4rem;
  padding-bottom: 4rem;
}
@media (min-width: 768px) {
  .section-pad {
    padding-top: 5rem;
    padding-bottom: 5rem;
  }
}
@media (min-width: 1024px) {
  .section-pad {
    padding-top: 7rem;
    padding-bottom: 7rem;
  }
}

/* ========== 导航 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(10, 14, 19, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo-area {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}
.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent-primary), #c22f14);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 900;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 0 20px rgba(255, 77, 46, 0.3);
}
.logo-text {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text-main);
  white-space: nowrap;
}
.logo-text span {
  color: var(--accent-primary);
}
.nav-links {
  display: none;
  align-items: center;
  gap: 2rem;
}
.nav-links a {
  font-size: 0.95rem;
  color: var(--text-muted);
  font-weight: 500;
  padding: 0.25rem 0;
  position: relative;
  transition: color 0.2s;
}
.nav-links a:hover {
  color: var(--accent-primary);
}
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  background: var(--accent-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.nav-links a:hover::after {
  transform: scaleX(1);
}
.nav-links a.active {
  color: var(--text-main);
  font-weight: 600;
}
.nav-links a.active::after {
  transform: scaleX(1);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-btn);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-size: 1.25rem;
  transition: all 0.2s;
}
.menu-toggle:hover {
  border-color: var(--accent-secondary);
  color: var(--accent-secondary);
}
@media (min-width: 1024px) {
  .nav-links {
    display: flex;
  }
  .menu-toggle {
    display: none;
  }
}

/* ========== 移动端抽屉 ========== */
.mobile-drawer {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 49;
  background: rgba(10, 14, 19, 0.98);
  padding: 2rem 1.5rem;
  overflow-y: auto;
}
.mobile-drawer.open {
  display: block;
}
.mobile-drawer a {
  display: block;
  padding: 1rem 0;
  font-size: 1.05rem;
  color: var(--text-main);
  border-bottom: 1px solid var(--border-color);
}
.mobile-drawer a:hover {
  color: var(--accent-primary);
}
.mobile-drawer a.active {
  color: var(--accent-primary);
  font-weight: 600;
}
.mobile-drawer .btn-brand,
.mobile-drawer .btn-ghost {
  display: flex;
  width: 100%;
  margin-top: 1rem;
  justify-content: center;
}

/* ========== 按钮 ========== */
.btn-brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-primary);
  color: #fff !important;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.65rem 1.5rem;
  border-radius: var(--radius-btn);
  transition: all 0.25s ease;
  box-shadow: 0 2px 10px rgba(255, 77, 46, 0.25);
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn-brand:hover {
  background: #ff6a4d;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 77, 46, 0.35);
  color: #fff !important;
}
.btn-brand:active {
  transform: translateY(0);
}
.btn-brand:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(255, 77, 46, 0.3);
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--text-muted) !important;
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.65rem 1.5rem;
  border-radius: var(--radius-btn);
  border: 1px solid rgba(255, 255, 255, 0.25);
  transition: all 0.25s ease;
  white-space: nowrap;
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main) !important;
  border-color: rgba(255, 255, 255, 0.4);
}
.btn-ghost:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.15);
}
.btn-ghost:active {
  transform: scale(0.98);
}

/* ========== 面包屑 ========== */
.breadcrumb {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-dark);
  font-size: 0.875rem;
}
.breadcrumb a {
  color: var(--text-muted);
  transition: color 0.2s;
}
.breadcrumb a:hover {
  color: var(--accent-primary);
}
.breadcrumb .sep {
  color: var(--text-muted);
  margin: 0 0.5rem;
}
.breadcrumb .current {
  color: var(--accent-primary);
  font-weight: 500;
}

/* ========== 分类页 Hero ========== */
.cate-hero {
  position: relative;
  background: linear-gradient(rgba(10, 14, 19, 0.88), rgba(10, 14, 19, 0.92)), url('/assets/images/backpic/back-1.jpg') center center / cover no-repeat;
  padding: 4rem 0;
  border-bottom: 1px solid var(--border-color);
}
@media (min-width: 768px) {
  .cate-hero {
    padding: 6rem 0;
  }
}
.cate-hero .hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--accent-secondary);
  color: var(--accent-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  margin-bottom: 1.5rem;
}
.cate-hero h1 {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
  max-width: 900px;
  margin: 0 0 1.25rem 0;
}
@media (min-width: 768px) {
  .cate-hero h1 {
    font-size: 3rem;
  }
}
.cate-hero .hero-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 760px;
  line-height: 1.8;
  margin-bottom: 2rem;
}
.cate-hero .hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem 2rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  align-items: center;
}
.cate-hero .hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}
.cate-hero .hero-meta span::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-success);
  flex-shrink: 0;
}

/* ========== 筛选标签栏 ========== */
.filter-bar {
  background: var(--bg-dark);
  border-bottom: 1px solid var(--border-color);
  padding: 1.25rem 0;
  position: sticky;
  top: 72px;
  z-index: 30;
}
.filter-scroll {
  display: flex;
  gap: 0.75rem;
  overflow-x: auto;
  padding-bottom: 0.25rem;
  scrollbar-width: none;
}
.filter-scroll::-webkit-scrollbar {
  display: none;
}
.filter-btn {
  flex-shrink: 0;
  padding: 0.4rem 1.1rem;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.2s;
  white-space: nowrap;
}
.filter-btn:hover {
  border-color: var(--accent-secondary);
  color: var(--accent-secondary);
}
.filter-btn.active {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #fff;
  box-shadow: 0 2px 12px rgba(255, 77, 46, 0.3);
}

/* ========== Z 字交错列表 ========== */
.zigzag-section {
  padding: 4rem 0;
  background: var(--bg-deep);
}
@media (min-width: 768px) {
  .zigzag-section {
    padding: 5rem 0;
  }
}
@media (min-width: 1024px) {
  .zigzag-section {
    padding: 6rem 0;
  }
}
.zigzag-list {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}
@media (min-width: 1024px) {
  .zigzag-list {
    gap: 3rem;
  }
}
.zigzag-item {
  display: grid;
  grid-template-columns: 1fr;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  box-shadow: var(--shadow-card);
}
@media (min-width: 768px) {
  .zigzag-item {
    grid-template-columns: 5fr 7fr;
    align-items: stretch;
  }
}
.zigzag-item:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 178, 36, 0.6);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
}
.zigzag-media {
  overflow: hidden;
  min-height: 200px;
  position: relative;
}
@media (min-width: 768px) {
  .zigzag-media {
    min-height: 100%;
  }
}
.zigzag-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.zigzag-item:hover .zigzag-media img {
  transform: scale(1.05);
}
.zigzag-content {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
@media (min-width: 768px) {
  .zigzag-content {
    padding: 2.5rem;
  }
}
.item-date {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  margin-bottom: 0.75rem;
  display: block;
}
.zigzag-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.45;
  margin: 0 0 0.75rem 0;
  transition: color 0.2s;
}
@media (min-width: 768px) {
  .zigzag-content h3 {
    font-size: 1.4rem;
  }
}
.zigzag-content h3:hover {
  color: var(--accent-primary);
}
.zigzag-content p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.75;
  margin: 0 0 1.25rem 0;
}
.item-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}
.item-tags span {
  padding: 0.2rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-muted);
  font-size: 0.8rem;
  transition: all 0.2s;
}
.item-tags span:hover {
  border-color: var(--accent-secondary);
  color: var(--accent-secondary);
}
.item-link {
  color: var(--accent-primary);
  font-weight: 500;
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  transition: gap 0.2s;
}
.item-link:hover {
  gap: 0.625rem;
  color: var(--accent-primary);
}

/* 左右交替：偶数项媒体区在右侧 */
@media (min-width: 768px) {
  .zigzag-item:nth-child(even) .zigzag-media {
    order: 2;
  }
  .zigzag-item:nth-child(even) .zigzag-content {
    order: 1;
  }
}

/* ========== 分页 ========== */
.pagination-section {
  padding: 2rem 0 4rem;
  background: var(--bg-deep);
}
.pagination {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.page-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  height: 42px;
  padding: 0 0.75rem;
  border-radius: var(--radius-btn);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  background: var(--bg-card);
  font-size: 0.95rem;
  transition: all 0.2s;
}
.page-link:hover {
  border-color: var(--accent-secondary);
  color: var(--accent-secondary);
  transform: translateY(-2px);
}
.page-link.active {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 2px 12px rgba(255, 77, 46, 0.25);
}
.page-link.disabled {
  opacity: 0.4;
  pointer-events: none;
}

/* ========== 相关推荐 ========== */
.related-section {
  background: var(--bg-dark);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 4rem 0;
}
@media (min-width: 768px) {
  .related-section {
    padding: 5rem 0;
  }
}
.section-heading {
  margin-bottom: 2.5rem;
}
.section-heading .section-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--accent-secondary);
  color: var(--accent-secondary);
  font-size: 0.82rem;
  font-weight: 500;
  margin-bottom: 1rem;
}
.section-heading h2 {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 0;
  line-height: 1.3;
}
@media (min-width: 768px) {
  .section-heading h2 {
    font-size: 2rem;
  }
}
.rel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
@media (min-width: 768px) {
  .rel-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
.rel-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
}
.rel-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 178, 36, 0.6);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
}
.rel-media {
  overflow: hidden;
  aspect-ratio: 16 / 10;
}
.rel-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.rel-card:hover .rel-media img {
  transform: scale(1.05);
}
.rel-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.rel-body h3 {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
  margin: 0 0 0.75rem 0;
  transition: color 0.2s;
}
.rel-body h3:hover {
  color: var(--accent-primary);
}
.rel-body p {
  color: var(--text-muted);
  font-size: 0.875rem;
  line-height: 1.7;
  margin: 0 0 1rem 0;
  flex: 1;
}
.rel-body .rel-tag {
  font-size: 0.8rem;
  color: var(--accent-secondary);
  font-weight: 500;
}

/* ========== CTA ========== */
.cta-section {
  position: relative;
  background: linear-gradient(rgba(10, 14, 19, 0.85), rgba(13, 20, 27, 0.9)), url('/assets/images/backpic/back-3.jpg') center center / cover no-repeat;
  padding: 4rem 0;
  text-align: center;
}
@media (min-width: 768px) {
  .cta-section {
    padding: 6rem 0;
  }
}
.cta-section h2 {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 0 0 1rem 0;
  line-height: 1.3;
}
@media (min-width: 768px) {
  .cta-section h2 {
    font-size: 2.25rem;
  }
}
.cta-section .cta-desc {
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto 2rem auto;
  font-size: 1rem;
  line-height: 1.75;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ========== 页脚 ========== */
.site-footer {
  background: var(--bg-footer);
  border-top: 1px solid var(--border-color);
  padding-top: 4rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding-bottom: 3rem;
}
@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
  }
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.footer-logo .logo-text {
  font-size: 1.2rem;
}
.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.75;
  max-width: 320px;
}
.footer-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 1.25rem;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.footer-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: color 0.2s;
}
.footer-links a:hover {
  color: var(--accent-primary);
}
.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding: 1.5rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: center;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}
@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* ========== 响应式辅助 ========== */
@media (max-width: 520px) {
  .cate-hero h1 {
    font-size: 1.6rem;
  }
  .cate-hero .hero-desc {
    font-size: 0.95rem;
  }
  .zigzag-content {
    padding: 1.25rem;
  }
  .item-date {
    font-size: 0.8rem;
  }
  .header-actions .btn-brand,
  .header-actions .btn-ghost {
    display: none;
  }
  .header-actions {
    gap: 0;
  }
}