/* roulang page: index */
:root {
            --bg-dark: #070D1A;
            --bg-deep: #0D1730;
            --bg-topbar: #050B14;
            --primary: #FF7A45;
            --primary-hover: #FF9A6B;
            --accent: #00D4FF;
            --success: #2ED9A0;
            --warning: #FFC53D;
            --danger: #FF3D68;
            --gradient-main: linear-gradient(135deg, #FF7A45 0%, #FF3D68 100%);
            --text-main: #EAF2FF;
            --text-sub: #9CABD0;
            --text-dim: #5B6B8F;
            --glass-bg: rgba(255, 255, 255, 0.05);
            --glass-border: rgba(255, 255, 255, 0.12);
            --radius-card: 16px;
            --radius-btn: 50px;
            --radius-img: 12px;
            --radius-lg: 24px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(0, 212, 255, 0.25);
            --glow-primary: 0 0 20px rgba(255, 122, 69, 0.35);
            --container-max: 1320px;
            --font-cn: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "Barlow Condensed", "DIN Alternate", "Roboto Condensed", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background: var(--bg-dark);
            color: var(--text-main);
            font-family: var(--font-cn);
            font-size: 16px;
            line-height: 1.8;
            position: relative;
            overflow-x: hidden;
        }
        body::before {
            content: '';
            position: fixed;
            inset: 0;
            background-image: repeating-linear-gradient(0deg, rgba(0, 212, 255, 0.025) 0, rgba(0, 212, 255, 0.025) 1px, transparent 1px, transparent 64px);
            pointer-events: none;
            z-index: 0;
        }
        body::after {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 80% 0%, rgba(0, 212, 255, 0.04) 0%, transparent 50%);
            pointer-events: none;
            z-index: 0;
        }
        img {
            max-width: 100%;
            vertical-align: middle;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: var(--text-main);
        }
        .container {
            max-width: var(--container-max);
            padding-left: 24px;
            padding-right: 24px;
        }
        section {
            position: relative;
            z-index: 1;
        }

        /* ===== Buttons ===== */
        .btn-primary-cus {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--gradient-main);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 0.75rem 2rem;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.25s ease;
            box-shadow: var(--glow-primary);
            text-decoration: none;
        }
        .btn-primary-cus:hover {
            filter: brightness(1.1);
            box-shadow: 0 0 28px rgba(255, 122, 69, 0.5);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-primary-cus:active {
            transform: scale(0.97);
        }
        .btn-ghost-cus {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.15), rgba(0, 212, 255, 0.05));
            color: var(--accent);
            border: 1px solid var(--accent);
            border-radius: var(--radius-btn);
            padding: 0.75rem 2rem;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.25s ease;
            text-decoration: none;
        }
        .btn-ghost-cus:hover {
            background: rgba(0, 212, 255, 0.08);
            color: var(--text-main);
            box-shadow: 0 0 16px rgba(0, 212, 255, 0.25);
        }
        .btn-ghost-cus:active {
            transform: scale(0.97);
        }
        .btn-nav-cus {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--gradient-main);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 0.4rem 1.2rem;
            font-weight: 600;
            font-size: 0.875rem;
            transition: all 0.25s ease;
            box-shadow: 0 0 12px rgba(255, 122, 69, 0.25);
            text-decoration: none;
        }
        .btn-nav-cus:hover {
            filter: brightness(1.1);
            color: #fff;
            box-shadow: 0 0 20px rgba(255, 122, 69, 0.4);
        }
        .btn-nav-cus:active {
            transform: scale(0.97);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== Top Bar ===== */
        .top-bar {
            background: var(--bg-topbar);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            height: 44px;
            display: flex;
            align-items: center;
            position: relative;
            z-index: 1001;
        }
        .top-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .top-bar .domain {
            font-family: var(--font-num);
            font-size: 0.8125rem;
            color: var(--text-sub);
            letter-spacing: 0.04em;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .top-bar .status-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--primary);
            display: inline-block;
            animation: pulse-dot 2s ease infinite;
            box-shadow: 0 0 8px rgba(255, 122, 69, 0.6);
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.6;
                transform: scale(0.8);
            }
        }
        .top-bar .top-action {
            color: var(--text-sub);
            font-size: 0.8125rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all 0.25s ease;
        }
        .top-bar .top-action:hover {
            color: var(--accent);
        }
        .top-bar .top-action i {
            transition: transform 0.25s ease;
        }
        .top-bar .top-action:hover i {
            transform: translateX(4px);
        }

        /* ===== Header / Nav ===== */
        .main-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(9, 15, 27, 0.85);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: background 0.3s ease;
        }
        .main-header.scrolled {
            background: rgba(9, 15, 27, 0.95);
        }
        .main-header .navbar-brand {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: 0.01em;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .main-header .navbar-brand:hover {
            color: var(--text-main);
        }
        .main-header .navbar-brand::before {
            content: '';
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--gradient-main);
            box-shadow: 0 0 10px rgba(255, 122, 69, 0.6);
            flex-shrink: 0;
        }
        .main-header .navbar-nav {
            gap: 2rem;
            margin-left: 3rem;
        }
        .main-header .nav-link {
            color: var(--text-sub);
            font-weight: 500;
            font-size: 0.95rem;
            position: relative;
            padding: 0.5rem 0;
            transition: color 0.25s ease;
        }
        .main-header .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width 0.3s ease;
        }
        .main-header .nav-link:hover {
            color: var(--text-main);
        }
        .main-header .nav-link:hover::after {
            width: 100%;
        }
        .main-header .nav-link.active {
            color: var(--text-main);
        }
        .main-header .nav-link.active::after {
            width: 100%;
        }
        .main-header .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 8px;
            padding: 4px 10px;
            color: var(--text-sub);
            background: transparent;
            font-size: 1.1rem;
        }
        .main-header .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.15);
        }
        @media (max-width: 991.98px) {
            .main-header .navbar-nav {
                gap: 0;
                margin-left: 0;
                padding: 0.75rem 0;
            }
            .main-header .nav-link {
                padding: 0.6rem 0;
            }
            .main-header .btn-nav-cus {
                margin-top: 0.75rem;
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== Countdown Bar ===== */
        .countdown-bar {
            background: linear-gradient(90deg, rgba(255, 122, 69, 0.08), rgba(0, 212, 255, 0.05));
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            padding: 8px 0;
            position: relative;
            z-index: 2;
        }
        .countdown-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .live-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8125rem;
            font-weight: 600;
            color: var(--text-main);
            letter-spacing: 0.05em;
            background: rgba(255, 122, 69, 0.12);
            border-radius: var(--radius-btn);
            padding: 4px 14px;
            border: 1px solid rgba(255, 122, 69, 0.3);
        }
        .live-tag .live-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
            animation: pulse-dot 1.4s ease infinite;
        }
        .countdown {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .cd-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(0, 212, 255, 0.15);
            border-radius: 10px;
            padding: 4px 12px;
            min-width: 54px;
        }
        .cd-num {
            font-family: var(--font-num);
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--primary);
            text-shadow: 0 0 12px rgba(255, 122, 69, 0.3);
            line-height: 1.2;
            letter-spacing: 0.02em;
        }
        .cd-label {
            font-size: 0.7rem;
            color: var(--text-sub);
            line-height: 1;
        }
        .cd-sep {
            color: var(--text-dim);
            font-family: var(--font-num);
            font-size: 1.2rem;
            font-weight: 700;
        }
        @media (max-width: 767.98px) {
            .countdown-bar .container {
                flex-direction: column;
                align-items: flex-start;
            }
            .countdown {
                width: 100%;
                overflow-x: auto;
                padding-bottom: 4px;
            }
        }

        /* ===== Hero ===== */
        .hero {
            min-height: 92vh;
            min-height: 640px;
            background:
                radial-gradient(ellipse at 18% 20%, rgba(0, 212, 255, 0.08) 0%, transparent 55%),
                radial-gradient(ellipse at 85% 75%, rgba(255, 122, 69, 0.06) 0%, transparent 55%),
                linear-gradient(160deg, #0B1426 0%, var(--bg-dark) 100%);
            display: flex;
            align-items: center;
            padding: 48px 0 64px;
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 480px;
            height: 480px;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .hero-text h1 {
            font-size: clamp(2.2rem, 5vw, 3.8rem);
            font-weight: 800;
            line-height: 1.2;
            text-wrap: balance;
            margin-bottom: 1.2rem;
            background: linear-gradient(135deg, var(--text-main) 60%, rgba(255, 255, 255, 0.7));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-text h1 .highlight {
            color: var(--primary);
            -webkit-text-fill-color: var(--primary);
        }
        .hero-sub {
            font-size: 1.1rem;
            color: var(--text-sub);
            max-width: 34ch;
            line-height: 1.7;
            margin-bottom: 2rem;
            text-wrap: pretty;
        }
        .hero-cta {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-visual {
            position: relative;
        }
        .glass-frame {
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
            border: 1px solid var(--glass-border);
            border-radius: 20px;
            padding: 16px;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255, 255, 255, 0.1);
            position: relative;
        }
        .glass-frame::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 22px;
            background: linear-gradient(135deg, transparent 40%, rgba(0, 212, 255, 0.3), rgba(255, 122, 69, 0.2), transparent 90%);
            z-index: -1;
            filter: blur(2px);
        }
        .glass-frame img {
            border-radius: 14px;
            width: 100%;
            object-fit: cover;
            min-height: 260px;
            background: linear-gradient(135deg, var(--bg-deep), var(--bg-dark));
        }
        .glass-tag {
            position: absolute;
            bottom: 32px;
            left: 32px;
            background: rgba(7, 13, 26, 0.7);
            border: 1px solid rgba(0, 212, 255, 0.3);
            border-radius: var(--radius-btn);
            padding: 6px 18px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.15em;
            color: var(--accent);
            backdrop-filter: blur(8px);
        }
        @media (max-width: 991.98px) {
            .hero {
                padding: 48px 0 48px;
                min-height: auto;
            }
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-visual {
                max-width: 480px;
                margin: 0 auto;
                width: 100%;
            }
        }
        @media (max-width: 767.98px) {
            .hero {
                min-height: 0;
                padding: 40px 0 40px;
            }
            .hero-text h1 {
                font-size: 2rem;
            }
            .hero-sub {
                font-size: 1rem;
                max-width: 100%;
            }
            .hero-cta .btn-primary-cus,
            .hero-cta .btn-ghost-cus {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== Section Head ===== */
        .section-head {
            margin-bottom: 48px;
            position: relative;
        }
        .section-head h2 {
            font-size: clamp(1.5rem, 2.5vw, 2.2rem);
            font-weight: 700;
            text-wrap: balance;
            margin-bottom: 8px;
            position: relative;
            padding-bottom: 12px;
        }
        .section-head h2::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 64px;
            height: 3px;
            background: var(--gradient-main);
            border-radius: 2px;
        }
        .section-head p {
            color: var(--text-sub);
            font-size: 0.95rem;
            margin-bottom: 0;
        }
        .section-head .view-all {
            font-size: 0.875rem;
            color: var(--text-sub);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all 0.25s ease;
        }
        .section-head .view-all:hover {
            color: var(--accent);
        }
        .section-head .view-all i {
            transition: transform 0.25s ease;
        }
        .section-head .view-all:hover i {
            transform: translateX(4px);
        }

        /* ===== Features ===== */
        .features-section {
            padding: 96px 0;
            background: var(--bg-dark);
            position: relative;
        }
        .features-list {
            display: flex;
            flex-direction: column;
            gap: 32px;
            margin-top: 32px;
        }
        .feature-row {
            display: grid;
            grid-template-columns: 1fr 3fr;
            gap: 32px;
            align-items: start;
            padding: 24px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            position: relative;
            transition: all 0.25s ease;
        }
        .feature-row:last-child {
            border-bottom: none;
        }
        .feature-row:nth-child(even) {
            margin-left: 8%;
        }
        .feature-row .feature-num {
            font-family: var(--font-num);
            font-size: 3rem;
            font-weight: 700;
            line-height: 1;
            color: transparent;
            -webkit-text-stroke: 1px rgba(0, 212, 255, 0.4);
            color: rgba(0, 212, 255, 0.15);
            position: relative;
            transition: all 0.25s ease;
        }
        .feature-row:hover .feature-num {
            -webkit-text-stroke: 1px var(--accent);
            color: rgba(0, 212, 255, 0.3);
            text-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
        }
        .feature-row .feature-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-main);
        }
        .feature-row .feature-body p {
            color: var(--text-sub);
            font-size: 0.95rem;
            max-width: 46ch;
            line-height: 1.7;
            margin-bottom: 0;
        }
        @media (max-width: 767.98px) {
            .features-section {
                padding: 56px 0;
            }
            .feature-row {
                grid-template-columns: 1fr;
                gap: 12px;
                margin-left: 0 !important;
                padding: 20px 0;
            }
            .feature-row .feature-num {
                font-size: 2.4rem;
                margin-bottom: 4px;
            }
        }

        /* ===== Gallery ===== */
        .gallery-section {
            padding: 96px 0;
            background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-deep) 100%);
            position: relative;
        }
        .masonry-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            grid-auto-rows: 140px;
            gap: 16px;
        }
        .masonry-item {
            border-radius: var(--radius-img);
            overflow: hidden;
            position: relative;
            background: linear-gradient(135deg, var(--bg-deep), var(--bg-dark));
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }
        .masonry-item:hover {
            box-shadow: var(--shadow-hover);
        }
        .masonry-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .masonry-item:hover img {
            transform: scale(1.03);
        }
        .masonry-item::after {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(7, 13, 26, 0);
            transition: background 0.3s ease;
        }
        .masonry-item:hover::after {
            background: rgba(7, 13, 26, 0.4);
        }
        .masonry-tag {
            position: absolute;
            bottom: 12px;
            left: 12px;
            z-index: 2;
            background: rgba(7, 13, 26, 0.75);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-btn);
            padding: 4px 12px;
            font-size: 0.75rem;
            color: var(--text-main);
            backdrop-filter: blur(6px);
            letter-spacing: 0.03em;
            transition: all 0.3s ease;
            opacity: 0.9;
        }
        .masonry-item:hover .masonry-tag {
            opacity: 1;
            border-color: rgba(0, 212, 255, 0.4);
            color: var(--accent);
        }
        .m-i1 {
            grid-column: 1 / 5;
            grid-row: 1 / 3;
        }
        .m-i2 {
            grid-column: 5 / 7;
            grid-row: 1 / 2;
        }
        .m-i3 {
            grid-column: 5 / 7;
            grid-row: 2 / 3;
        }
        .m-i4 {
            grid-column: 1 / 3;
            grid-row: 3 / 5;
        }
        .m-i5 {
            grid-column: 3 / 7;
            grid-row: 3 / 5;
        }
        @media (max-width: 991.98px) {
            .masonry-grid {
                grid-auto-rows: 120px;
            }
        }
        @media (max-width: 767.98px) {
            .gallery-section {
                padding: 56px 0;
            }
            .masonry-grid {
                grid-template-columns: repeat(2, 1fr);
                grid-auto-rows: 160px;
            }
            .m-i1,
            .m-i2,
            .m-i3,
            .m-i4,
            .m-i5 {
                grid-column: auto;
                grid-row: auto;
            }
            .m-i1 {
                grid-column: span 2;
                grid-row: span 2;
            }
            .m-i2 {
                grid-column: span 1;
                grid-row: span 1;
            }
            .m-i3 {
                grid-column: span 1;
                grid-row: span 1;
            }
            .m-i4 {
                grid-column: span 1;
                grid-row: span 1;
            }
            .m-i5 {
                grid-column: span 2;
                grid-row: span 1;
            }
        }
        @media (max-width: 575.98px) {
            .masonry-grid {
                grid-auto-rows: 130px;
            }
        }

        /* ===== Signup Section ===== */
        .signup-section {
            padding: 96px 0;
            background: var(--bg-dark);
            position: relative;
        }
        .signup-panel {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 48px;
            box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255, 255, 255, 0.08);
            border-left: 3px solid var(--primary);
            position: relative;
            overflow: hidden;
        }
        .signup-panel::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(255, 122, 69, 0.05) 0%, transparent 70%);
            pointer-events: none;
        }
        .signup-panel h2 {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            margin-bottom: 8px;
        }
        .signup-panel .signup-sub {
            color: var(--text-sub);
            font-size: 0.95rem;
            margin-bottom: 32px;
            max-width: 48ch;
        }
        .signup-form .form-group {
            margin-bottom: 0;
        }
        .signup-form .form-control,
        .signup-form .form-select {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 12px;
            padding: 0.75rem 1rem;
            color: var(--text-main);
            font-size: 0.95rem;
            transition: all 0.25s ease;
        }
        .signup-form .form-control::placeholder {
            color: var(--text-dim);
        }
        .signup-form .form-control:focus,
        .signup-form .form-select:focus {
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(0, 212, 255, 0.15);
            color: var(--text-main);
        }
        .signup-form .form-select option {
            background: var(--bg-deep);
            color: var(--text-main);
        }
        .signup-form .form-label {
            color: var(--text-main);
            font-size: 0.875rem;
            font-weight: 500;
            margin-bottom: 6px;
        }
        .signup-form .btn-submit {
            width: 100%;
            justify-content: center;
            padding: 0.85rem 2rem;
            font-size: 1rem;
        }
        .signup-form .btn-submit.success {
            background: var(--success);
            box-shadow: 0 0 16px rgba(46, 217, 160, 0.4);
        }
        @media (max-width: 767.98px) {
            .signup-section {
                padding: 56px 0;
            }
            .signup-panel {
                padding: 32px 20px;
            }
            .signup-form .btn-submit {
                margin-top: 12px;
            }
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            padding: 96px 0;
            background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-deep) 100%);
            position: relative;
        }
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1.4fr;
            gap: 48px;
        }
        .faq-summary h2 {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            margin-bottom: 16px;
        }
        .faq-summary .summary-text {
            color: var(--text-sub);
            font-size: 0.95rem;
            line-height: 1.8;
            margin-bottom: 24px;
            max-width: 40ch;
        }
        .faq-summary .rule-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all 0.25s ease;
        }
        .faq-summary .rule-link:hover {
            color: var(--text-main);
        }
        .faq-summary .rule-link i {
            transition: transform 0.25s ease;
        }
        .faq-summary .rule-link:hover i {
            transform: translateX(4px);
        }
        .faq-accordion .accordion-item {
            background: transparent;
            border: none;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 0;
            transition: background 0.25s ease;
        }
        .faq-accordion .accordion-item:last-child {
            border-bottom: none;
        }
        .faq-accordion .accordion-item.active {
            background: rgba(0, 212, 255, 0.04);
            box-shadow: 0 0 0 1px rgba(0, 212, 255, 0.12);
            border-radius: 12px;
        }
        .faq-accordion .accordion-button {
            background: transparent;
            color: var(--text-main);
            font-size: 0.95rem;
            font-weight: 600;
            padding: 1rem 0;
            box-shadow: none;
            border: none;
            transition: color 0.25s ease;
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--accent);
            background: transparent;
            box-shadow: none;
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: transparent;
        }
        .faq-accordion .accordion-button::after {
            background-image: none;
            content: '\2B';
            font-size: 1.4rem;
            font-family: var(--font-cn);
            font-weight: 300;
            line-height: 1;
            transform: rotate(0deg);
            transition: transform 0.25s ease;
            color: var(--text-sub);
        }
        .faq-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
            color: var(--accent);
        }
        .faq-accordion .accordion-body {
            color: var(--text-sub);
            font-size: 0.9rem;
            line-height: 1.75;
            padding: 0 0 1.2rem 0;
        }
        @media (max-width: 991.98px) {
            .faq-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 767.98px) {
            .faq-section {
                padding: 56px 0;
            }
        }

        /* ===== News Section ===== */
        .news-section {
            padding: 96px 0;
            background: var(--bg-dark);
            position: relative;
        }
        .news-list {
            display: flex;
            flex-direction: column;
        }
        .news-item {
            display: grid;
            grid-template-columns: 72px 1fr 32px;
            gap: 24px;
            align-items: center;
            padding: 24px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: all 0.25s ease;
            text-decoration: none;
        }
        .news-item:last-child {
            border-bottom: none;
        }
        .news-item:hover {
            background: rgba(255, 255, 255, 0.02);
            padding-left: 12px;
            padding-right: 12px;
            border-radius: 12px;
        }
        .news-time {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 10px;
            padding: 10px 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            transition: all 0.25s ease;
        }
        .news-item:hover .news-time {
            border-color: rgba(0, 212, 255, 0.4);
            box-shadow: 0 0 12px rgba(0, 212, 255, 0.1);
        }
        .news-day {
            font-family: var(--font-num);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
        }
        .news-month {
            font-size: 0.75rem;
            color: var(--text-sub);
            margin-top: 2px;
        }
        .news-detail h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 4px;
            transition: color 0.25s ease;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 100%;
        }
        .news-item:hover .news-detail h3 {
            color: var(--accent);
        }
        .news-detail p {
            color: var(--text-sub);
            font-size: 0.875rem;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 100%;
            margin-bottom: 6px;
        }
        .news-cat {
            display: inline-block;
            background: rgba(0, 212, 255, 0.1);
            border: 1px solid rgba(0, 212, 255, 0.2);
            color: var(--accent);
            border-radius: 6px;
            padding: 2px 10px;
            font-size: 0.75rem;
        }
        .news-arrow {
            color: var(--text-dim);
            font-size: 1rem;
            justify-self: end;
            transition: all 0.25s ease;
        }
        .news-item:hover .news-arrow {
            color: var(--accent);
            transform: translateX(4px);
        }
        .empty-tip {
            padding: 48px 0;
            text-align: center;
            color: var(--text-dim);
            font-size: 0.95rem;
            background: rgba(255, 255, 255, 0.02);
            border-radius: 12px;
            border: 1px dashed rgba(255, 255, 255, 0.1);
        }
        @media (max-width: 767.98px) {
            .news-section {
                padding: 56px 0;
            }
            .news-item {
                grid-template-columns: 56px 1fr 24px;
                gap: 16px;
                padding: 18px 0;
            }
            .news-time {
                padding: 6px 0;
            }
            .news-day {
                font-size: 1.2rem;
            }
        }
        @media (max-width: 575.98px) {
            .news-item {
                grid-template-columns: 52px 1fr;
                gap: 12px;
            }
            .news-arrow {
                display: none;
            }
            .news-detail h3 {
                font-size: 1rem;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-topbar);
            border-top: 1px solid transparent;
            position: relative;
            z-index: 1;
            margin-top: 0;
        }
        .site-footer::before {
            content: '';
            position: absolute;
            top: -1px;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent 0%, var(--primary) 35%, var(--accent) 65%, transparent 100%);
        }
        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding: 64px 0 40px;
        }
        .footer-brand h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-brand h3::before {
            content: '';
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--gradient-main);
            box-shadow: 0 0 8px rgba(255, 122, 69, 0.5);
        }
        .footer-brand p {
            color: var(--text-sub);
            font-size: 0.875rem;
            max-width: 32ch;
            margin-bottom: 0;
        }
        .footer-nav h4,
        .footer-contact h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 16px;
        }
        .footer-nav ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-nav a {
            color: var(--text-sub);
            font-size: 0.875rem;
            transition: all 0.25s ease;
        }
        .footer-nav a:hover {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 4px;
        }
        .footer-contact p {
            color: var(--text-sub);
            font-size: 0.875rem;
            margin-bottom: 0;
            max-width: 28ch;
        }
        .footer-middle {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 20px 0;
            text-align: center;
        }
        .footer-middle p {
            color: var(--text-sub);
            font-size: 0.8125rem;
            margin-bottom: 0;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            padding: 16px 0;
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 24px;
        }
        .footer-bottom span {
            color: var(--text-dim);
            font-size: 0.75rem;
            font-family: var(--font-num);
            letter-spacing: 0.05em;
        }
        @media (max-width: 991.98px) {
            .footer-top {
                grid-template-columns: 1fr;
                gap: 32px;
                padding: 48px 0 32px;
            }
        }
        @media (max-width: 767.98px) {
            .footer-top {
                gap: 24px;
                padding: 40px 0 24px;
            }
            .footer-middle,
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
            }
        }

        /* ===== Section spacing ===== */
        .section-pad {
            padding: 96px 0;
        }

        /* ===== Reduced Motion ===== */
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
            html {
                scroll-behavior: auto;
            }
        }

        /* ===== Misc ===== */
        .section-subtitle {
            color: var(--text-sub);
            font-size: 0.95rem;
            max-width: 56ch;
            margin-bottom: 0;
        }
        .accent-text {
            color: var(--accent);
        }
        .primary-text {
            color: var(--primary);
        }
        .divider-gradient {
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
            border: none;
            opacity: 1;
        }

/* roulang page: category1 */
:root {
            --bg-primary: #070D1A;
            --bg-secondary: #0D1730;
            --bg-soft: rgba(255, 255, 255, 0.04);
            --brand: #FF7A45;
            --brand-hover: #FF9A6B;
            --accent: #00D4FF;
            --gradient: linear-gradient(135deg, #FF7A45 0%, #FF3D68 100%);
            --gradient-accent: linear-gradient(135deg, rgba(0, 212, 255, 0.15), rgba(0, 212, 255, 0.05));
            --card-bg: rgba(255, 255, 255, 0.05);
            --card-border: rgba(255, 255, 255, 0.12);
            --text-primary: #EAF2FF;
            --text-secondary: #9CABD0;
            --text-muted: #5B6B8F;
            --success: #2ED9A0;
            --warning: #FFC53D;
            --danger: #FF3D68;
            --radius-card: 16px;
            --radius-btn: 50px;
            --radius-img: 12px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(0, 212, 255, 0.25);
            --transition: 0.25s ease;
            --font-num: "Barlow Condensed", "DIN Alternate", "Roboto Condensed", sans-serif;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            font-size: 16px;
            line-height: 1.75;
            overflow-x: hidden;
        }

        body::before {
            content: "";
            position: fixed;
            inset: 0;
            z-index: 0;
            pointer-events: none;
            background-image: repeating-linear-gradient(0deg, rgba(0, 212, 255, 0.03) 0px, rgba(0, 212, 255, 0.03) 1px, transparent 1px, transparent 40px),
                repeating-linear-gradient(90deg, rgba(0, 212, 255, 0.03) 0px, rgba(0, 212, 255, 0.03) 1px, transparent 1px, transparent 40px);
        }

        body>header,
        body>main,
        body>footer {
            position: relative;
            z-index: 1;
        }

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

        a:hover {
            color: var(--brand-hover);
        }

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

        .container {
            max-width: 1320px;
            padding-left: 24px;
            padding-right: 24px;
        }

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

        /* ===== 顶部信息条 ===== */
        .top-bar {
            background: #050B14;
            height: 44px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.8125rem;
            display: flex;
            align-items: center;
        }

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

        .top-bar .domain {
            font-family: "SF Mono", "Consolas", "Courier New", monospace;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .top-bar .domain .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--brand);
            box-shadow: 0 0 8px var(--brand);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%, 100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: .6;
                transform: scale(.8);
            }
        }

        .top-bar .action-link {
            color: var(--text-secondary);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition);
        }

        .top-bar .action-link i {
            transition: transform var(--transition);
        }

        .top-bar .action-link:hover {
            color: var(--brand);
        }

        .top-bar .action-link:hover i {
            transform: translateX(4px);
        }

        /* ===== 主导航 ===== */
        .main-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(9, 15, 27, 0.85);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .main-header.scrolled {
            background: rgba(9, 15, 27, 0.95);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }

        .main-header .navbar {
            padding: 0;
            min-height: 72px;
        }

        .main-header .navbar-brand {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            background: linear-gradient(135deg, var(--brand) 0%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }

        .main-header .navbar-brand:hover {
            color: var(--brand);
            -webkit-text-fill-color: var(--brand);
        }

        .main-header .navbar-nav {
            gap: 0.5rem;
        }

        .main-header .nav-link {
            color: var(--text-secondary);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 0.5rem 0.25rem;
            margin: 0 0.75rem;
            position: relative;
            transition: color var(--transition);
        }

        .main-header .nav-link::after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            box-shadow: 0 0 8px rgba(0, 212, 255, 0.5);
            transition: width var(--transition);
        }

        .main-header .nav-link:hover,
        .main-header .nav-link.active {
            color: var(--text-primary);
        }

        .main-header .nav-link:hover::after,
        .main-header .nav-link.active::after {
            width: 100%;
        }

        .btn-nav-cus {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 0.5rem 1.4rem;
            border-radius: 50px;
            background: var(--gradient);
            color: #fff;
            font-size: 0.875rem;
            font-weight: 600;
            border: none;
            box-shadow: 0 0 16px rgba(255, 122, 69, 0.35);
            transition: all var(--transition);
            text-decoration: none;
        }

        .btn-nav-cus:hover {
            filter: brightness(1.1);
            color: #fff;
            box-shadow: 0 0 28px rgba(255, 122, 69, 0.55);
            transform: translateY(-2px);
        }

        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 8px;
            padding: 6px 10px;
            color: var(--text-primary);
            background: transparent;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.2);
            outline: none;
        }

        @media (max-width: 991px) {
            .main-header .navbar-collapse {
                background: rgba(9, 15, 27, 0.97);
                border-radius: 12px;
                padding: 1rem;
                margin-top: 0.5rem;
                border: 1px solid rgba(255, 255, 255, 0.08);
            }
            .main-header .navbar-nav {
                gap: 0.25rem;
                margin-bottom: 0.75rem;
            }
            .main-header .nav-link {
                padding: 0.75rem 0.5rem;
            }
            .btn-nav-cus {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== 页面 Hero / Banner ===== */
        .category-hero {
            position: relative;
            padding: 90px 0 80px;
            background:
                radial-gradient(ellipse at top right, rgba(0, 212, 255, 0.12), transparent 60%),
                radial-gradient(ellipse at bottom left, rgba(255, 122, 69, 0.08), transparent 50%),
                linear-gradient(180deg, #0B1426 0%, var(--bg-primary) 100%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            overflow: hidden;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            z-index: 0;
        }

        .category-hero .container {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 860px;
        }

        .category-hero .breadcrumb-wrap {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 0.8125rem;
            color: var(--text-secondary);
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: 50px;
            padding: 6px 18px;
            margin-bottom: 24px;
        }

        .category-hero .breadcrumb-wrap a {
            color: var(--text-secondary);
        }

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

        .category-hero .breadcrumb-wrap i {
            font-size: 10px;
            color: var(--text-muted);
        }

        .category-hero h1 {
            font-size: clamp(2.2rem, 5vw, 3.4rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 18px;
            text-wrap: balance;
            letter-spacing: 0.01em;
        }

        .category-hero h1 .highlight {
            background: linear-gradient(135deg, var(--brand), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .category-hero .lead-text {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 42ch;
            margin: 0 auto 32px;
            line-height: 1.8;
            text-wrap: pretty;
        }

        .category-hero .hero-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-primary-cus {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 0.75rem 2rem;
            border-radius: 50px;
            background: var(--gradient);
            color: #fff !important;
            font-weight: 600;
            border: none;
            box-shadow: 0 0 20px rgba(255, 122, 69, 0.35);
            transition: all var(--transition);
            text-decoration: none;
        }

        .btn-primary-cus:hover {
            filter: brightness(1.1);
            transform: translateY(-2px);
            box-shadow: 0 0 32px rgba(255, 122, 69, 0.55);
        }

        .btn-primary-cus:active {
            transform: scale(0.97);
        }

        .btn-outline-cus {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 0.75rem 2rem;
            border-radius: 50px;
            background: var(--gradient-accent);
            border: 1px solid var(--accent);
            color: var(--accent) !important;
            font-weight: 500;
            transition: all var(--transition);
            text-decoration: none;
        }

        .btn-outline-cus:hover {
            background: rgba(0, 212, 255, 0.15);
            color: var(--accent);
            box-shadow: 0 0 24px rgba(0, 212, 255, 0.2);
            transform: translateY(-2px);
        }

        .btn-outline-cus:active {
            transform: scale(0.97);
        }

        @media (max-width: 768px) {
            .category-hero {
                padding: 56px 0 48px;
            }
            .category-hero .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .category-hero .btn-primary-cus,
            .category-hero .btn-outline-cus {
                justify-content: center;
            }
        }

        /* ===== 玩法核心模式 ===== */
        .section-pattern {
            padding: 96px 0;
        }

        @media (max-width: 991px) {
            .section-pattern {
                padding: 72px 0;
            }
        }

        @media (max-width: 767px) {
            .section-pattern {
                padding: 56px 0;
            }
        }

        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }

        .section-header .tag-line {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8125rem;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            font-weight: 600;
            margin-bottom: 14px;
        }

        .section-header .tag-line::before,
        .section-header .tag-line::after {
            content: "";
            width: 24px;
            height: 1px;
            background: var(--accent);
            opacity: 0.6;
        }

        .section-header h2 {
            font-size: clamp(1.5rem, 2.5vw, 2.2rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 16px;
            text-wrap: balance;
        }

        .section-header .section-desc {
            color: var(--text-secondary);
            font-size: 1rem;
            max-width: 620px;
            margin: 0 auto;
            line-height: 1.8;
        }

        .mode-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        @media (max-width: 767px) {
            .mode-grid {
                grid-template-columns: 1fr;
            }
        }

        .mode-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--radius-card);
            padding: 36px 32px;
            position: relative;
            transition: all var(--transition);
            overflow: hidden;
        }

        .mode-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--gradient);
            opacity: 0;
            transition: opacity var(--transition);
        }

        .mode-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 212, 255, 0.25);
        }

        .mode-card:hover::before {
            opacity: 1;
        }

        .mode-card .mode-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            background: var(--gradient-accent);
            border: 1px solid rgba(0, 212, 255, 0.25);
            color: var(--accent);
            margin-bottom: 20px;
        }

        .mode-card h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--text-primary);
        }

        .mode-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.75;
            margin-bottom: 16px;
        }

        .mode-card .mode-points {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .mode-card .mode-points li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.875rem;
            color: var(--text-secondary);
            padding: 4px 0;
        }

        .mode-card .mode-points li i {
            color: var(--success);
            font-size: 14px;
        }

        /* ===== 参与流程 ===== */
        .flow-section {
            background: var(--bg-secondary);
            background-image: radial-gradient(ellipse at 50% 0%, rgba(0, 212, 255, 0.06), transparent 60%);
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .flow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }

        @media (max-width: 991px) {
            .flow-steps {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 575px) {
            .flow-steps {
                grid-template-columns: 1fr;
            }
        }

        .flow-step {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            position: relative;
            transition: all var(--transition);
        }

        .flow-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .flow-step .step-num {
            font-family: var(--font-num);
            font-size: 3rem;
            font-weight: 700;
            line-height: 1;
            color: transparent;
            -webkit-text-stroke: 1px var(--accent);
            opacity: 0.7;
            margin-bottom: 16px;
            display: block;
        }

        .flow-step h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-primary);
        }

        .flow-step p {
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .flow-step .step-arrow {
            position: absolute;
            top: 50%;
            right: -18px;
            transform: translateY(-50%);
            color: var(--accent);
            font-size: 14px;
            z-index: 2;
            background: var(--bg-secondary);
            border-radius: 50%;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid rgba(0, 212, 255, 0.3);
        }

        @media (max-width: 991px) {
            .flow-step .step-arrow {
                display: none;
            }
        }

        /* ===== 注意事项 ===== */
        .tips-section {
            padding: 96px 0;
        }

        @media (max-width: 767px) {
            .tips-section {
                padding: 56px 0;
            }
        }

        .tips-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        @media (max-width: 991px) {
            .tips-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        .tips-image {
            border-radius: 20px;
            overflow: hidden;
            position: relative;
            box-shadow: var(--shadow-card);
            min-height: 320px;
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(255, 122, 69, 0.08)), var(--bg-secondary);
        }

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

        .tips-image:hover img {
            transform: scale(1.03);
        }

        .tips-image .tips-badge {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background: rgba(7, 13, 26, 0.75);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 8px;
            padding: 6px 14px;
            font-size: 0.8125rem;
            color: var(--text-primary);
        }

        .tips-content h2 {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            margin-bottom: 16px;
            text-wrap: balance;
        }

        .tips-content>p {
            color: var(--text-secondary);
            margin-bottom: 24px;
            line-height: 1.8;
        }

        .tips-list {
            list-style: none;
            padding: 0;
            margin: 0 0 28px;
        }

        .tips-list li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.9375rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .tips-list li:last-child {
            border-bottom: none;
        }

        .tips-list li i {
            color: var(--warning);
            font-size: 14px;
            margin-top: 5px;
            flex-shrink: 0;
        }

        /* ===== 相关主题 ===== */
        .related-section {
            padding: 96px 0;
            background: var(--bg-secondary);
            background-image: radial-gradient(ellipse at 80% 100%, rgba(255, 122, 69, 0.06), transparent 50%);
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        @media (max-width: 991px) {
            .related-section {
                padding: 72px 0;
            }
        }

        @media (max-width: 767px) {
            .related-section {
                padding: 56px 0;
            }
        }

        .related-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        @media (max-width: 767px) {
            .related-grid {
                grid-template-columns: 1fr;
            }
        }

        .related-card {
            border-radius: var(--radius-card);
            overflow: hidden;
            position: relative;
            min-height: 280px;
            display: flex;
            align-items: flex-end;
            background: var(--bg-secondary);
            border: 1px solid var(--card-border);
            transition: all var(--transition);
            text-decoration: none;
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 212, 255, 0.3);
        }

        .related-card .related-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.4;
            transition: transform 0.4s ease, opacity var(--transition);
        }

        .related-card:hover .related-bg {
            transform: scale(1.05);
            opacity: 0.5;
        }

        .related-card .related-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 30%, rgba(7, 13, 26, 0.92) 100%);
        }

        .related-card .related-content {
            position: relative;
            padding: 28px;
            width: 100%;
        }

        .related-card .related-content .related-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent);
            background: rgba(0, 212, 255, 0.12);
            border: 1px solid rgba(0, 212, 255, 0.3);
            border-radius: 6px;
            padding: 3px 12px;
            margin-bottom: 12px;
        }

        .related-card .related-content h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .related-card .related-content p {
            font-size: 0.875rem;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        .related-card .related-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 12px;
            font-size: 0.875rem;
            color: var(--brand);
            opacity: 0;
            transform: translateY(4px);
            transition: all var(--transition);
        }

        .related-card:hover .related-link {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-panel {
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: 24px;
            padding: 56px 48px;
            text-align: center;
            position: relative;
            max-width: 900px;
            margin: 0 auto;
            box-shadow: var(--shadow-card);
        }

        .cta-panel::before {
            content: "";
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background: var(--gradient);
            border-radius: 0 0 3px 3px;
        }

        .cta-panel h2 {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text-primary);
            text-wrap: balance;
        }

        .cta-panel p {
            color: var(--text-secondary);
            margin-bottom: 28px;
            max-width: 46ch;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.8;
        }

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

        @media (max-width: 575px) {
            .cta-panel {
                padding: 40px 24px;
            }
            .cta-panel .cta-actions {
                flex-direction: column;
            }
            .cta-panel .btn-primary-cus,
            .cta-panel .btn-outline-cus {
                justify-content: center;
                width: 100%;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #050B14;
            border-top: 1px solid rgba(255, 122, 69, 0.25);
            position: relative;
        }

        .site-footer::before {
            content: "";
            position: absolute;
            top: -1px;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255, 122, 69, 0.6), rgba(0, 212, 255, 0.6), transparent);
        }

        .site-footer .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr;
            gap: 48px;
            padding: 56px 0 40px;
        }

        @media (max-width: 991px) {
            .site-footer .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .site-footer .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 575px) {
            .site-footer .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
                padding: 40px 0 24px;
            }
        }

        .site-footer .footer-brand h3 {
            font-size: 1.25rem;
            font-weight: 800;
            margin-bottom: 12px;
            background: linear-gradient(135deg, var(--brand), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .site-footer .footer-brand p {
            color: var(--text-secondary);
            font-size: 0.875rem;
            line-height: 1.7;
            margin-bottom: 0;
            max-width: 30ch;
        }

        .site-footer .footer-nav h4,
        .site-footer .footer-contact h4 {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

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

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

        .site-footer .footer-nav ul li a {
            color: var(--text-secondary);
            font-size: 0.875rem;
            text-decoration: none;
            transition: all var(--transition);
        }

        .site-footer .footer-nav ul li a:hover {
            color: var(--brand);
            padding-left: 4px;
        }

        .site-footer .footer-contact p {
            color: var(--text-secondary);
            font-size: 0.875rem;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .site-footer .footer-middle {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 20px 0;
            text-align: center;
        }

        .site-footer .footer-middle p {
            font-size: 0.8125rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            padding: 16px 0;
            display: flex;
            justify-content: center;
            gap: 24px;
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        @media (max-width: 575px) {
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: center;
                gap: 4px;
            }
        }

        /* ===== 无障碍 focus ===== */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
        }

/* roulang page: article */
:root{
  --bg-deep:#070D1A;
  --bg-dark:#0D1730;
  --bg-soft:#0B1426;
  --primary:#FF7A45;
  --primary-hover:#FF9A6B;
  --primary-deep:#FF3D68;
  --accent:#00D4FF;
  --success:#2ED9A0;
  --warn:#FFC53D;
  --text-main:#EAF2FF;
  --text-sub:#9CABD0;
  --text-dim:#5B6B8F;
  --border-line:rgba(255,255,255,0.08);
  --card-bg:rgba(255,255,255,0.05);
  --card-border:rgba(255,255,255,0.12);
  --radius-card:16px;
  --radius-btn:50px;
  --radius-img:12px;
  --shadow-card:0 8px 32px rgba(0,0,0,0.35);
  --shadow-hover:0 16px 48px rgba(0,0,0,0.5),0 0 0 1px rgba(0,212,255,0.25);
  --glow-primary:0 0 20px rgba(255,122,69,0.35);
  --glow-accent:0 0 20px rgba(0,212,255,0.2);
  --transition:0.25s ease;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg-deep);
  color:var(--text-main);
  line-height:1.8;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    repeating-linear-gradient(90deg,rgba(0,212,255,0.03) 1px,transparent 1px,transparent 80px),
    repeating-linear-gradient(0deg,rgba(0,212,255,0.03) 1px,transparent 1px,transparent 80px);
  z-index:0;
  pointer-events:none;
}
body::after{
  content:"";
  position:fixed;
  top:-200px;right:-200px;
  width:520px;height:520px;
  background:radial-gradient(circle,rgba(0,212,255,0.08) 0%,transparent 70%);
  z-index:0;
  pointer-events:none;
}
a{color:var(--accent);text-decoration:none;transition:color var(--transition);}
a:hover{color:var(--primary-hover);}
img{max-width:100%;}
button,input,select,textarea{font-family:inherit;}
.container{max-width:1320px;padding-left:24px;padding-right:24px;}
.row{--bs-gutter-x:1.5rem;}

/* ===== 顶部信息条 ===== */
.topbar{
  background:#050B14;
  border-bottom:1px solid rgba(255,255,255,0.06);
  height:44px;
  display:flex;
  align-items:center;
  position:relative;
  z-index:1001;
}
.topbar .container{display:flex;align-items:center;justify-content:space-between;height:100%;}
.topbar-domain{
  font-family:"Barlow Condensed","DIN Alternate","Roboto Condensed",sans-serif;
  font-size:0.8125rem;
  letter-spacing:0.04em;
  color:var(--text-sub);
  display:flex;
  align-items:center;
  gap:8px;
}
.topbar-domain::before{
  content:"";
  width:7px;height:7px;
  background:var(--primary);
  border-radius:50%;
  box-shadow:0 0 8px var(--primary);
  animation:pulseDot 2s ease-in-out infinite;
}
@keyframes pulseDot{
  0%,100%{opacity:1;transform:scale(1);}
  50%{opacity:0.6;transform:scale(0.8);}
}
.topbar-action{
  font-size:0.8125rem;
  color:var(--text-sub);
  display:inline-flex;
  align-items:center;
  gap:6px;
  transition:color var(--transition);
}
.topbar-action:hover{color:var(--primary);}
.topbar-action i{font-size:0.72rem;transition:transform var(--transition);}
.topbar-action:hover i{transform:translateX(4px);}

/* ===== 主导航 ===== */
.main-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(9,15,27,0.85);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border-line);
  transition:background var(--transition),box-shadow var(--transition);
}
.main-header.scrolled{
  background:rgba(9,15,27,0.95);
  box-shadow:0 8px 32px rgba(0,0,0,0.3);
}
.main-header .navbar{padding:0.75rem 0;}
.navbar-brand{
  font-size:1.35rem;
  font-weight:800;
  color:#fff;
  letter-spacing:0.01em;
  background:linear-gradient(135deg,#FF7A45,#FF3D68);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
  white-space:nowrap;
}
.navbar-brand:hover{color:var(--primary);}
.navbar-toggler{
  border:none;
  background:rgba(255,255,255,0.08);
  color:#fff;
  width:42px;height:42px;
  border-radius:10px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1rem;
  box-shadow:none;
}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(0,212,255,0.25);outline:none;}
.main-header .navbar-nav{gap:0.5rem;}
.main-header .nav-link{
  color:var(--text-sub);
  font-size:0.95rem;
  font-weight:500;
  padding:0.5rem 1rem;
  position:relative;
  border-radius:8px;
  transition:color var(--transition);
}
.main-header .nav-link::after{
  content:"";
  position:absolute;
  left:1rem;right:1rem;bottom:2px;
  height:2px;
  background:var(--accent);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--transition);
}
.main-header .nav-link:hover::after,
.main-header .nav-link.active::after{transform:scaleX(1);}
.main-header .nav-link:hover,.main-header .nav-link.active{color:#fff;}
.btn-nav-cus{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:linear-gradient(135deg,#FF7A45 0%,#FF3D68 100%);
  color:#fff;
  font-size:0.9rem;
  font-weight:600;
  padding:0.55rem 1.45rem;
  border-radius:50px;
  box-shadow:var(--glow-primary);
  transition:all var(--transition);
  border:none;
  white-space:nowrap;
}
.btn-nav-cus:hover{
  color:#fff;
  filter:brightness(1.1);
  transform:translateY(-2px);
  box-shadow:0 6px 24px rgba(255,122,69,0.45);
}
.btn-nav-cus i{font-size:0.8rem;transition:transform var(--transition);}
.btn-nav-cus:hover i{transform:translateX(3px);}

/* ===== 按钮 ===== */
.btn-primary-cus{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  background:linear-gradient(135deg,#FF7A45 0%,#FF3D68 100%);
  color:#fff;
  font-weight:600;
  font-size:0.95rem;
  padding:0.75rem 2rem;
  border-radius:50px;
  border:none;
  cursor:pointer;
  box-shadow:var(--glow-primary);
  transition:all var(--transition);
  text-decoration:none;
}
.btn-primary-cus:hover{color:#fff;filter:brightness(1.1);transform:translateY(-2px);box-shadow:0 6px 24px rgba(255,122,69,0.45);}
.btn-primary-cus:active{transform:scale(0.97);}
.btn-outline-cus{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  background:linear-gradient(135deg,rgba(0,212,255,0.15),rgba(0,212,255,0.05));
  border:1px solid var(--accent);
  color:var(--accent);
  font-weight:500;
  font-size:0.95rem;
  padding:0.7rem 1.75rem;
  border-radius:50px;
  cursor:pointer;
  transition:all var(--transition);
  text-decoration:none;
}
.btn-outline-cus:hover{background:rgba(0,212,255,0.12);color:var(--accent);transform:translateY(-2px);box-shadow:var(--glow-accent);}
.btn-ghost-cus{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:none;
  border:none;
  color:var(--text-sub);
  font-weight:500;
  font-size:0.9rem;
  padding:0.6rem 1.2rem;
  border-radius:50px;
  cursor:pointer;
  transition:all var(--transition);
  text-decoration:none;
}
.btn-ghost-cus:hover{color:#fff;background:rgba(255,255,255,0.06);}
.btn-ghost-cus i{transition:transform var(--transition);}
.btn-ghost-cus:hover i{transform:translateX(-3px);}

/* ===== 页面主体 ===== */
.page-article-main{
  position:relative;
  z-index:1;
  background:
    radial-gradient(ellipse at 0% 0%,rgba(0,212,255,0.05) 0%,transparent 50%),
    radial-gradient(ellipse at 100% 10%,rgba(255,122,69,0.04) 0%,transparent 50%),
    var(--bg-deep);
}
.breadcrumb-wrap{
  padding:1.5rem 0 0.5rem;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  list-style:none;
  gap:6px;
  align-items:center;
  font-size:0.875rem;
  color:var(--text-sub);
  margin:0;
}
.breadcrumb li{display:flex;align-items:center;gap:6px;}
.breadcrumb li+li::before{
  content:"/";
  color:var(--text-dim);
  margin:0 2px;
}
.breadcrumb a{color:var(--text-sub);transition:color var(--transition);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .active{color:var(--text-dim);max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ===== 文章头部 ===== */
.article-header{
  padding:1.5rem 0 2rem;
  border-bottom:1px solid var(--border-line);
  margin-bottom:2rem;
}
.article-header h1{
  font-size:clamp(1.7rem,2.8vw,2.4rem);
  font-weight:800;
  line-height:1.3;
  text-wrap:balance;
  color:#fff;
  margin-bottom:1rem;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  gap:1.25rem;
  align-items:center;
  font-size:0.875rem;
  color:var(--text-sub);
}
.meta-item{display:inline-flex;align-items:center;gap:6px;}
.meta-item i{color:var(--accent);font-size:0.8rem;}
.meta-badge{
  display:inline-flex;
  align-items:center;
  background:rgba(255,122,69,0.15);
  border:1px solid rgba(255,122,69,0.4);
  color:var(--primary);
  font-size:0.75rem;
  font-weight:600;
  padding:2px 12px;
  border-radius:50px;
}

/* ===== 正文内容 ===== */
.article-content{
  font-size:1rem;
  line-height:1.9;
  color:var(--text-main);
}
.article-content p{margin-bottom:1.5rem;text-wrap:pretty;}
.article-content h2{
  font-size:1.55rem;
  font-weight:700;
  color:#fff;
  margin:2.5rem 0 1rem;
  padding-left:1rem;
  border-left:3px solid var(--primary);
  line-height:1.35;
}
.article-content h3{
  font-size:1.25rem;
  font-weight:600;
  color:#fff;
  margin:2rem 0 0.75rem;
}
.article-content img{
  max-width:100%;
  border-radius:12px;
  border:1px solid rgba(255,255,255,0.1);
  margin:1.5rem 0;
}
.article-content blockquote{
  border-left:3px solid var(--accent);
  background:rgba(0,212,255,0.04);
  padding:1rem 1.5rem;
  margin:1.5rem 0;
  border-radius:0 12px 12px 0;
  color:var(--text-sub);
  font-style:italic;
}
.article-content pre{
  background:var(--bg-dark);
  border:1px solid var(--border-line);
  border-radius:12px;
  padding:1.25rem;
  overflow-x:auto;
  margin:1.5rem 0;
  font-size:0.875rem;
  line-height:1.7;
}
.article-content code{
  background:rgba(0,212,255,0.08);
  color:var(--accent);
  border-radius:6px;
  padding:0.1rem 0.5rem;
  font-size:0.875rem;
}
.article-content pre code{background:none;color:var(--text-main);padding:0;}
.article-content ul,.article-content ol{margin-bottom:1.5rem;padding-left:1.5rem;}
.article-content li{margin-bottom:0.5rem;}
.article-content table{width:100%;margin:1.5rem 0;border-collapse:collapse;font-size:0.925rem;}
.article-content th,.article-content td{padding:0.75rem 1rem;border:1px solid var(--border-line);}
.article-content th{background:rgba(0,212,255,0.06);color:#fff;font-weight:600;}
.article-not-found{
  text-align:center;
  padding:4rem 2rem;
  background:var(--card-bg);
  border:1px solid var(--card-border);
  border-radius:var(--radius-card);
}
.article-not-found p{
  font-size:1.25rem;
  color:var(--text-sub);
  margin-bottom:1.5rem;
}

/* ===== 标签区 ===== */
.article-tags{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  padding:1.5rem 0;
  border-top:1px solid var(--border-line);
  border-bottom:1px solid var(--border-line);
  margin-top:2.5rem;
}
.tags-label{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:0.875rem;
  color:var(--text-sub);
}
.tags-label i{color:var(--accent);}
.tag-pill{
  display:inline-block;
  background:rgba(0,212,255,0.08);
  border:1px solid rgba(0,212,255,0.25);
  color:var(--accent);
  font-size:0.8rem;
  padding:4px 14px;
  border-radius:50px;
  transition:all var(--transition);
  text-decoration:none;
}
.tag-pill:hover{
  background:rgba(0,212,255,0.18);
  color:#fff;
  border-color:var(--accent);
  transform:translateY(-2px);
}

/* ===== 相关推荐 ===== */
.related-section{
  padding:2.5rem 0 0;
}
.related-section h2{
  font-size:1.4rem;
  font-weight:700;
  color:#fff;
  margin-bottom:1.5rem;
  text-wrap:balance;
}
.related-card{
  background:var(--card-bg);
  border:1px solid var(--card-border);
  border-radius:var(--radius-card);
  overflow:hidden;
  height:100%;
  transition:all var(--transition);
  backdrop-filter:blur(12px);
}
.related-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}
.related-card .related-img-wrap{position:relative;overflow:hidden;}
.related-card img{
  width:100%;
  height:150px;
  object-fit:cover;
  display:block;
  border-radius:0;
  transition:transform 0.4s ease;
}
.related-card:hover img{transform:scale(1.03);}
.related-body{
  padding:1rem 1.25rem 1.25rem;
  display:flex;
  flex-direction:column;
  gap:6px;
}
.related-body h3{
  font-size:1rem;
  font-weight:600;
  color:var(--text-main);
  line-height:1.45;
  margin:0;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  min-height:2.9em;
}
.related-card:hover .related-body h3{color:#fff;}
.related-date{
  font-size:0.8rem;
  color:var(--text-dim);
  display:flex;
  align-items:center;
  gap:6px;
}
.related-date::before{
  content:"";
  width:4px;height:4px;
  background:var(--accent);
  border-radius:50%;
}
.related-empty{
  text-align:center;
  padding:3rem 2rem;
  background:var(--card-bg);
  border:1px dashed var(--card-border);
  border-radius:var(--radius-card);
}

/* ===== 侧边栏 ===== */
.sidebar-widget{
  background:var(--card-bg);
  border:1px solid var(--card-border);
  border-radius:var(--radius-card);
  padding:1.5rem;
  margin-bottom:1.5rem;
  backdrop-filter:blur(12px);
  box-shadow:var(--shadow-card);
}
.sidebar-widget h3{
  font-size:1.05rem;
  font-weight:700;
  color:#fff;
  margin-bottom:1.1rem;
  padding-bottom:0.75rem;
  border-bottom:1px solid var(--border-line);
  position:relative;
}
.sidebar-widget h3::after{
  content:"";
  position:absolute;
  left:0;bottom:-1px;
  width:48px;height:3px;
  background:linear-gradient(90deg,var(--primary),var(--primary-deep));
  border-radius:2px;
}
.sidebar-nav{
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin:0;
  padding:0;
}
.sidebar-nav a{
  display:inline-block;
  background:rgba(255,255,255,0.05);
  border:1px solid rgba(255,255,255,0.1);
  color:var(--text-sub);
  font-size:0.85rem;
  padding:6px 16px;
  border-radius:50px;
  transition:all var(--transition);
  text-decoration:none;
}
.sidebar-nav a:hover{
  background:rgba(0,212,255,0.1);
  border-color:var(--accent);
  color:var(--accent);
  transform:translateY(-2px);
}
.sidebar-img{
  width:100%;
  height:120px;
  object-fit:cover;
  border-radius:12px;
  margin-bottom:1rem;
  border:1px solid var(--card-border);
  display:block;
}
.sidebar-widget .btn{width:100%;}
.sidebar-widget p{font-size:0.875rem;color:var(--text-sub);margin-bottom:1rem;}
.sidebar-cta{
  background:linear-gradient(135deg,rgba(255,122,69,0.15),rgba(255,61,104,0.08));
  border:1px solid rgba(255,122,69,0.35);
  border-radius:var(--radius-card);
  padding:1.5rem;
  text-align:center;
}
.sidebar-cta h3{
  font-size:1.1rem;
  font-weight:700;
  color:#fff;
  margin-bottom:0.5rem;
}
.sidebar-cta p{
  font-size:0.875rem;
  color:var(--text-sub);
  margin-bottom:1.25rem;
}
.sidebar-cta .btn{width:100%;}

/* ===== 页脚 ===== */
.site-footer{
  background:#050B14;
  border-top:1px solid rgba(255,255,255,0.06);
  position:relative;
  z-index:1;
  margin-top:4rem;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,122,69,0.6),rgba(0,212,255,0.6),transparent);
}
.footer-top{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr;
  gap:2.5rem;
  padding:3rem 0 2rem;
}
.footer-brand h3{
  font-size:1.3rem;
  font-weight:800;
  background:linear-gradient(135deg,#FF7A45,#FF3D68);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
  margin-bottom:0.75rem;
}
.footer-brand p{
  font-size:0.9rem;
  color:var(--text-sub);
  max-width:30ch;
  margin:0;
}
.footer-nav h4,.footer-contact h4{
  font-size:0.95rem;
  font-weight:600;
  color:#fff;
  margin-bottom:1rem;
}
.footer-nav ul{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-direction:column;
  gap:8px;
}
.footer-nav a{
  color:var(--text-sub);
  font-size:0.875rem;
  transition:color var(--transition);
  text-decoration:none;
}
.footer-nav a:hover{
  color:var(--primary);
  text-decoration:underline;
}
.footer-contact p{
  font-size:0.875rem;
  color:var(--text-sub);
  margin:0;
}
.footer-middle{
  border-top:1px solid rgba(255,255,255,0.06);
  text-align:center;
  padding:1.25rem 0;
  font-size:0.85rem;
  color:var(--text-dim);
}
.footer-middle p{margin:0;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.04);
  display:flex;
  justify-content:center;
  align-items:center;
  gap:1.5rem;
  flex-wrap:wrap;
  padding:1rem 0 1.5rem;
  font-family:"Barlow Condensed","DIN Alternate","Roboto Condensed",sans-serif;
  font-size:0.75rem;
  letter-spacing:0.04em;
  color:var(--text-dim);
}
.footer-bottom span{opacity:0.7;}

/* ===== 响应式 ===== */
@media (max-width: 1199px){
  .article-header h1{font-size:2rem;}
}
@media (max-width: 991px){
  .main-header .navbar-nav{gap:0;margin-top:0.75rem;}
  .main-header .nav-link{padding:0.6rem 0.5rem;border-radius:0;}
  .main-header .nav-link::after{left:0.5rem;right:0.5rem;}
  .btn-nav-cus{margin-top:0.75rem;justify-content:center;width:100%;}
  .footer-top{grid-template-columns:1fr 1fr;gap:2rem;}
  .footer-brand{grid-column:1 / -1;}
  .sidebar-widget{margin-bottom:1.25rem;}
  .article-content h2{font-size:1.4rem;}
}
@media (max-width: 767px){
  .container{padding-left:16px;padding-right:16px;}
  .topbar{height:40px;}
  .topbar-action{font-size:0.75rem;}
  .breadcrumb-wrap{padding-top:1rem;}
  .article-header{padding:1rem 0 1.5rem;}
  .article-meta{gap:0.75rem;flex-wrap:wrap;}
  .meta-item{font-size:0.8rem;}
  .footer-top{grid-template-columns:1fr;padding:2rem 0 1rem;gap:1.5rem;}
  .footer-brand{grid-column:auto;}
  .footer-bottom{flex-direction:column;gap:0.5rem;}
  .related-card img{height:130px;}
}
@media (max-width: 575px){
  .breadcrumb .active{max-width:180px;}
  .article-header h1{font-size:1.5rem;}
  .article-tags{gap:6px;}
  .tag-pill{padding:3px 10px;font-size:0.75rem;}
  .sidebar-widget{padding:1.2rem;}
  .related-section h2{font-size:1.2rem;}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:0.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:0.01ms !important;
    scroll-behavior:auto !important;
  }
}
:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
        :root {
            --bg-deep: #070D1A;
            --bg-alt: #0D1730;
            --bg-card: rgba(255, 255, 255, 0.05);
            --bg-hover: rgba(255, 255, 255, 0.08);
            --border-glass: rgba(255, 255, 255, 0.12);
            --border-light: rgba(255, 255, 255, 0.08);
            --primary: #FF7A45;
            --primary-hover: #FF9A6B;
            --accent: #00D4FF;
            --success: #2ED9A0;
            --warning: #FFC53D;
            --danger: #FF3D68;
            --text-main: #EAF2FF;
            --text-secondary: #9CABD0;
            --text-disabled: #5B6B8F;
            --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-number: "Barlow Condensed", "DIN Alternate", "Roboto Condensed", sans-serif;
            --radius-card: 16px;
            --radius-btn: 50px;
            --radius-img: 12px;
            --radius-banner: 24px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(0, 212, 255, 0.25);
            --transition: 0.25s ease;
        }

        /* ============ 基础重置 ============ */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: var(--font-body);
            background-color: var(--bg-deep);
            color: var(--text-main);
            font-size: 1rem;
            line-height: 1.8;
            background-image: repeating-linear-gradient(90deg, rgba(0, 212, 255, 0.025) 0, rgba(0, 212, 255, 0.025) 1px, transparent 1px, transparent 120px);
            overflow-x: hidden;
        }
        body::before {
            content: "";
            position: fixed;
            inset: 0;
            pointer-events: none;
            z-index: 0;
            background: radial-gradient(1200px 600px at 80% -10%, rgba(0, 212, 255, 0.06), transparent 60%), radial-gradient(800px 400px at -5% 40%, rgba(255, 122, 69, 0.05), transparent 60%);
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--text-main);
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            text-wrap: balance;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 0.5rem;
        }
        p {
            text-wrap: pretty;
            margin: 0 0 1rem;
        }
        button,
        input,
        select,
        textarea {
            font-family: var(--font-body);
        }
        :focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

        /* ============ 顶部信息条 ============ */
        .topbar {
            background: #050B14;
            min-height: 44px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            padding: 0 16px;
        }
        .topbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1320px;
        }
        .topbar-left {
            font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
            font-size: 0.8125rem;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: 0.02em;
        }
        .topbar-left::before {
            content: "";
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 122, 69, 0.25);
            animation: livePulse 2.4s ease-in-out infinite;
        }
        .topbar-right {
            font-size: 0.8125rem;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .topbar-right a {
            color: var(--text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition);
        }
        .topbar-right a i {
            transition: transform var(--transition);
        }
        .topbar-right a:hover {
            color: var(--primary);
        }
        .topbar-right a:hover i {
            transform: translateX(4px);
        }

        /* ============ 主导航 ============ */
        .main-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(9, 15, 27, 0.85);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }
        .main-header.scrolled {
            background: rgba(9, 15, 27, 0.95);
            box-shadow: 0 6px 30px rgba(0, 0, 0, 0.35);
        }
        .main-header .navbar {
            padding: 12px 0;
        }
        .main-header .container {
            max-width: 1320px;
        }
        .navbar-brand {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: 0.02em;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-right: 2rem;
            white-space: nowrap;
        }
        .navbar-brand:hover {
            color: var(--primary);
        }
        .navbar-brand::before {
            content: "";
            width: 10px;
            height: 10px;
            border-radius: 3px;
            background: linear-gradient(135deg, var(--primary), #FF3D68);
            box-shadow: 0 0 12px rgba(255, 122, 69, 0.5);
        }
        .navbar-nav .nav-item {
            margin: 0 0.7rem;
        }
        .navbar-nav .nav-link {
            position: relative;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 0.5rem 0.25rem;
            letter-spacing: 0.01em;
            transition: color var(--transition);
        }
        .navbar-nav .nav-link::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            box-shadow: 0 0 10px rgba(0, 212, 255, 0.4);
            transition: width var(--transition);
        }
        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link.active {
            color: var(--text-main);
        }
        .navbar-nav .nav-link:hover::after,
        .navbar-nav .nav-link.active::after {
            width: 100%;
        }
        .btn-nav-cus {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 0.45rem 1.35rem;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, #FF7A45 0%, #FF3D68 100%);
            color: #fff;
            font-weight: 600;
            font-size: 0.875rem;
            border: none;
            transition: filter var(--transition), transform var(--transition), box-shadow var(--transition);
            box-shadow: 0 0 16px rgba(255, 122, 69, 0.25);
            white-space: nowrap;
        }
        .btn-nav-cus:hover {
            filter: brightness(1.1);
            box-shadow: 0 0 24px rgba(255, 122, 69, 0.45);
            color: #fff;
            transform: translateY(-1px);
        }
        .btn-nav-cus:active {
            transform: scale(0.97);
        }
        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 8px;
            color: var(--text-main);
            padding: 6px 12px;
            background: transparent;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.2);
        }

        /* ============ 通用容器与区块 ============ */
        .container {
            max-width: 1320px;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section {
            padding: 96px 0;
            position: relative;
            z-index: 1;
        }
        .section-alt {
            background: var(--bg-alt);
            background-image: radial-gradient(600px 300px at 100% 0%, rgba(0, 212, 255, 0.05), transparent 70%);
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8125rem;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 12px;
        }
        .section-tag::before {
            content: "";
            width: 24px;
            height: 1px;
            background: var(--accent);
        }
        .section-title {
            font-size: clamp(1.5rem, 2.5vw, 2.2rem);
            line-height: 1.3;
            margin-bottom: 1rem;
        }
        .section-sub {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 2.5rem;
        }

        /* ============ 页面 Hero ============ */
        .page-hero {
            position: relative;
            z-index: 1;
            padding: 96px 0 72px;
            background: linear-gradient(135deg, #0B1426 0%, #0D1730 60%, rgba(13, 23, 48, 0.6) 100%);
            background-image: radial-gradient(900px 400px at 100% 0%, rgba(0, 212, 255, 0.1), transparent 60%), radial-gradient(700px 400px at 0% 100%, rgba(255, 122, 69, 0.08), transparent 55%);
            border-bottom: 1px solid var(--border-light);
            overflow: hidden;
        }
        .page-hero::after {
            content: "";
            position: absolute;
            right: -120px;
            top: 20%;
            width: 420px;
            height: 420px;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.18;
            border-radius: 50%;
            filter: blur(8px);
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-breadcrumb {
            font-size: 0.8125rem;
            color: var(--text-secondary);
            margin-bottom: 20px;
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .hero-breadcrumb a {
            color: var(--text-secondary);
        }
        .hero-breadcrumb a:hover {
            color: var(--accent);
        }
        .hero-breadcrumb .sep {
            color: var(--text-disabled);
        }
        .page-hero h1 {
            font-size: clamp(2rem, 4.2vw, 3.2rem);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
        }
        .page-hero h1 span {
            color: var(--primary);
        }
        .page-hero .hero-lead {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin-bottom: 28px;
            line-height: 1.75;
        }
        .hero-stats {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
            margin-top: 40px;
            padding-top: 32px;
            border-top: 1px solid var(--border-light);
        }
        .hero-stat .num {
            font-family: var(--font-number);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
            letter-spacing: 0.02em;
        }
        .hero-stat .lab {
            font-size: 0.8125rem;
            color: var(--text-secondary);
            margin-top: 4px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 8px;
        }

        /* ============ 按钮 ============ */
        .btn-main {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 0.75rem 2rem;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, #FF7A45 0%, #FF3D68 100%);
            color: #fff;
            font-weight: 600;
            border: none;
            box-shadow: 0 0 20px rgba(255, 122, 69, 0.3);
            transition: filter var(--transition), transform var(--transition), box-shadow var(--transition);
        }
        .btn-main:hover {
            filter: brightness(1.1);
            box-shadow: 0 0 30px rgba(255, 122, 69, 0.45);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-main:active {
            transform: scale(0.97);
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 0.75rem 2rem;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.15), rgba(0, 212, 255, 0.05));
            border: 1px solid var(--accent);
            color: var(--accent);
            font-weight: 600;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
        }
        .btn-ghost:hover {
            background: rgba(0, 212, 255, 0.12);
            box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
            transform: translateY(-2px);
            color: var(--accent);
        }
        .btn-ghost:active {
            transform: scale(0.97);
        }

        /* ============ 概览卡片 ============ */
        .overview-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .overview-card {
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            backdrop-filter: blur(12px);
            box-shadow: var(--shadow-card);
            box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
            position: relative;
            overflow: hidden;
        }
        .overview-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 0;
            background: linear-gradient(180deg, var(--primary), var(--accent));
            transition: height var(--transition);
        }
        .overview-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 212, 255, 0.25);
        }
        .overview-card:hover::before {
            height: 60%;
        }
        .overview-card .icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.15rem;
            color: var(--accent);
            background: rgba(0, 212, 255, 0.1);
            border: 1px solid rgba(0, 212, 255, 0.2);
            margin-bottom: 18px;
        }
        .overview-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .overview-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 0;
        }

        /* ============ 规则对比表格 ============ */
        .compare-wrap {
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-banner);
            padding: 28px 24px;
            backdrop-filter: blur(12px);
            box-shadow: var(--shadow-card);
        }
        .table-rules {
            margin-bottom: 0;
            --bs-table-bg: transparent;
            --bs-table-color: var(--text-main);
            --bs-table-border-color: transparent;
            border-collapse: separate;
            border-spacing: 0;
        }
        .table-rules thead th {
            background: rgba(0, 212, 255, 0.06);
            color: var(--accent);
            font-weight: 600;
            font-size: 0.9375rem;
            padding: 16px 20px;
            border-bottom: 1px solid rgba(0, 212, 255, 0.2);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .table-rules thead th:first-child {
            border-radius: 12px 0 0 0;
        }
        .table-rules thead th:last-child {
            border-radius: 0 12px 0 0;
        }
        .table-rules tbody td {
            padding: 16px 20px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border-light);
            background: transparent;
            vertical-align: middle;
        }
        .table-rules tbody tr {
            transition: background var(--transition);
        }
        .table-rules tbody tr:hover td {
            background: rgba(0, 212, 255, 0.03);
            color: var(--text-main);
        }
        .table-rules tbody td:first-child {
            font-weight: 600;
            color: var(--text-main);
            white-space: nowrap;
        }
        .table-rules tbody tr:last-child td {
            border-bottom: none;
        }
        .table-rules tbody tr:last-child td:first-child {
            border-radius: 0 0 0 12px;
        }
        .table-rules tbody tr:last-child td:last-child {
            border-radius: 0 0 12px 0;
        }
        .compare-note {
            margin-top: 16px;
            font-size: 0.8125rem;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .compare-note i {
            color: var(--warning);
        }

        /* ============ 参与流程 ============ */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            counter-reset: step;
        }
        .step-item {
            position: relative;
            padding-top: 32px;
        }
        .step-item::before {
            counter-increment: step;
            content: "0" counter(step);
            font-family: var(--font-number);
            font-size: 2.6rem;
            font-weight: 700;
            line-height: 1;
            color: transparent;
            -webkit-text-stroke: 1px var(--accent);
            display: block;
            margin-bottom: 16px;
        }
        .step-item::after {
            content: "";
            position: absolute;
            top: 40px;
            left: 40px;
            width: calc(100% - 40px);
            height: 1px;
            background: linear-gradient(90deg, rgba(0, 212, 255, 0.4), transparent);
        }
        .step-item:last-child::after {
            display: none;
        }
        .step-item h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 6px;
        }
        .step-item p {
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }
        .step-item:hover::before {
            color: var(--primary);
            -webkit-text-stroke: 1px var(--primary);
            filter: drop-shadow(0 0 10px rgba(255, 122, 69, 0.5));
        }

        /* ============ 注意事项 ============ */
        .notice-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-banner);
            padding: 40px;
            backdrop-filter: blur(12px);
            box-shadow: var(--shadow-card);
            border-left: 3px solid var(--warning);
        }
        .notice-panel h3 {
            font-size: 1.2rem;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .notice-panel h3 i {
            color: var(--warning);
        }
        .notice-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .notice-list li {
            position: relative;
            padding-left: 28px;
            padding-bottom: 14px;
            font-size: 0.9375rem;
            color: var(--text-secondary);
            line-height: 1.7;
            border-bottom: 1px dashed var(--border-light);
        }
        .notice-list li:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .notice-list li::before {
            content: "\f0a4";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 2px;
            color: var(--warning);
            font-size: 0.8125rem;
        }

        /* ============ 常见问题延伸 ============ */
        .faq-extend-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .faq-card {
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-card);
            padding: 28px;
            backdrop-filter: blur(12px);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .faq-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .faq-card .q {
            font-weight: 600;
            color: var(--text-main);
            font-size: 0.95rem;
            margin-bottom: 10px;
            display: flex;
            gap: 8px;
            align-items: flex-start;
        }
        .faq-card .q i {
            color: var(--accent);
            font-size: 0.8125rem;
            margin-top: 5px;
        }
        .faq-card .a {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            padding-left: 24px;
            margin-bottom: 0;
        }

        /* ============ 相关主题 ============ */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .related-card {
            position: relative;
            border-radius: 20px;
            overflow: hidden;
            min-height: 240px;
            display: flex;
            align-items: flex-end;
            border: 1px solid var(--border-glass);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .related-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .related-card:hover img {
            transform: scale(1.03);
        }
        .related-card::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7, 13, 26, 0.1) 30%, rgba(7, 13, 26, 0.85) 100%);
        }
        .related-body {
            position: relative;
            z-index: 2;
            padding: 28px;
            width: 100%;
        }
        .related-body .tag {
            display: inline-block;
            font-size: 0.75rem;
            background: rgba(0, 212, 255, 0.2);
            border: 1px solid rgba(0, 212, 255, 0.3);
            padding: 4px 12px;
            border-radius: 50px;
            color: var(--accent);
            margin-bottom: 10px;
            letter-spacing: 0.04em;
        }
        .related-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 6px;
        }
        .related-body p {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 14px;
        }
        .related-body a {
            color: #fff;
            font-size: 0.875rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .related-body a i {
            transition: transform var(--transition);
        }
        .related-body a:hover {
            color: var(--accent);
        }
        .related-body a:hover i {
            transform: translateX(4px);
        }

        /* ============ CTA 横幅 ============ */
        .cta-banner {
            position: relative;
            z-index: 1;
            border-radius: var(--radius-banner);
            padding: 56px 48px;
            background: linear-gradient(135deg, rgba(255, 122, 69, 0.15), rgba(0, 212, 255, 0.08)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            border: 1px solid rgba(255, 122, 69, 0.25);
            box-shadow: var(--shadow-card);
            text-align: center;
            overflow: hidden;
        }
        .cta-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(7, 13, 26, 0.65);
            z-index: -1;
        }
        .cta-banner h2 {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            margin-bottom: 12px;
        }
        .cta-banner p {
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 28px;
            font-size: 0.95rem;
        }
        .cta-btn-row {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: #050B14;
            border-top: 1px solid var(--border-light);
            margin-top: 0;
            position: relative;
        }
        .site-footer::before {
            content: "";
            position: absolute;
            top: 0;
            left: 10%;
            right: 10%;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--primary), transparent);
        }
        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1.2fr;
            gap: 40px;
            padding: 64px 0 48px;
        }
        .footer-brand h3 {
            font-size: 1.35rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .footer-brand h3::before {
            content: "";
            display: inline-block;
            width: 8px;
            height: 8px;
            margin-right: 8px;
            border-radius: 3px;
            background: linear-gradient(135deg, var(--primary), #FF3D68);
        }
        .footer-brand p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            max-width: 320px;
            margin-bottom: 0;
        }
        .footer-nav h4,
        .footer-contact h4 {
            font-size: 0.9375rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-nav ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-nav ul li {
            margin-bottom: 10px;
        }
        .footer-nav ul a {
            color: var(--text-secondary);
            font-size: 0.875rem;
            transition: color var(--transition);
        }
        .footer-nav ul a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        .footer-contact p {
            color: var(--text-secondary);
            font-size: 0.875rem;
            line-height: 1.7;
            margin-bottom: 0;
        }
        .footer-middle {
            border-top: 1px solid var(--border-light);
            padding: 20px 0;
            text-align: center;
        }
        .footer-middle p {
            color: var(--text-secondary);
            font-size: 0.8125rem;
            margin: 0;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            padding: 16px 0 20px;
            text-align: center;
            display: flex;
            justify-content: center;
            gap: 24px;
            color: var(--text-disabled);
            font-size: 0.8125rem;
            flex-wrap: wrap;
        }
        .footer-bottom span:first-child::before {
            content: "\f0e7";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            margin-right: 6px;
            color: var(--accent);
        }

        /* ============ 响应式断点 ============ */
        @media (max-width: 1400px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
        }
        @media (max-width: 1199.98px) {
            .overview-grid {
                gap: 16px;
            }
            .overview-card {
                padding: 24px 20px;
            }
            .steps-grid {
                gap: 20px;
            }
            .step-item::after {
                left: 36px;
                width: calc(100% - 36px);
            }
        }
        @media (max-width: 991.98px) {
            .section {
                padding: 72px 0;
            }
            .overview-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .step-item::after {
                display: none;
            }
            .faq-extend-grid {
                grid-template-columns: 1fr;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .navbar-collapse {
                background: rgba(9, 15, 27, 0.98);
                padding: 16px;
                border-radius: 12px;
                margin-top: 12px;
                border: 1px solid var(--border-light);
            }
            .navbar-nav .nav-link {
                padding: 10px 4px;
            }
            .btn-nav-cus {
                margin-top: 8px;
                margin-bottom: 8px;
                width: 100%;
                justify-content: center;
            }
            .page-hero {
                padding: 64px 0 56px;
            }
        }
        @media (max-width: 767.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section {
                padding: 56px 0;
            }
            .page-hero {
                padding: 48px 0 40px;
            }
            .hero-stats {
                gap: 24px;
            }
            .hero-stat .num {
                font-size: 1.8rem;
            }
            .overview-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .compare-wrap {
                padding: 16px;
            }
            .notice-panel {
                padding: 24px;
            }
            .cta-banner {
                padding: 40px 24px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .topbar .container {
                flex-direction: column;
                gap: 4px;
                padding-top: 6px;
                padding-bottom: 6px;
            }
            .topbar {
                min-height: auto;
            }
        }
        @media (max-width: 575.98px) {
            .btn-main,
            .btn-ghost {
                width: 100%;
                justify-content: center;
            }
            .hero-actions {
                flex-direction: column;
            }
            .table-rules thead th,
            .table-rules tbody td {
                padding: 12px 12px;
                font-size: 0.8125rem;
            }
            .related-card {
                min-height: 200px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 6px;
            }
        }

        /* ============ 动效 / 可访问性 ============ */
        @keyframes livePulse {
            0%,
            100% {
                box-shadow: 0 0 0 3px rgba(255, 122, 69, 0.25);
                opacity: 1;
            }
            50% {
                box-shadow: 0 0 0 6px rgba(255, 122, 69, 0.08);
                opacity: 0.8;
            }
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.15s !important;
                scroll-behavior: auto !important;
            }
            .related-card img {
                transform: none;
            }
        }