/* roulang page: index */
:root {
            --bg-dark: #070B1A;
            --bg-card: rgba(255, 255, 255, 0.04);
            --bg-glass: rgba(255, 255, 255, 0.06);
            --bg-deep: rgba(7, 11, 26, 0.92);
            --primary: #3E8EFF;
            --primary-light: #6AB5FF;
            --accent: #35D0C2;
            --gold: #FFB03A;
            --muted: #64748B;
            --danger: #FF5D73;
            --text-main: #F1F5F9;
            --text-weak: #94A3B8;
            --border-glass: rgba(255, 255, 255, 0.14);
            --border-soft: rgba(255, 255, 255, 0.08);
            --radius-card: 20px;
            --radius-btn: 12px;
            --radius-pill: 50rem;
            --shadow-card: 0 12px 40px rgba(0, 0, 0, 0.45);
            --shadow-btn: 0 0 24px rgba(62, 142, 255, 0.45);
            --shadow-btn-hover: 0 0 36px rgba(106, 181, 255, 0.65);
            --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --section-pad: 96px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-main);
            background-color: var(--bg-dark);
            background-image:
                radial-gradient(ellipse 55% 30% at 12% 0%, rgba(62, 142, 255, 0.14), transparent 70%),
                radial-gradient(ellipse 45% 30% at 88% 100%, rgba(53, 208, 194, 0.09), transparent 70%);
            background-attachment: fixed;
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color .25s ease;
        }

        a:hover {
            color: #cfe2ff;
        }

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

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.35;
            margin-top: 0;
            color: #f8fafc;
        }

        p {
            margin-top: 0;
            margin-bottom: 1rem;
        }

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

        /* ---------- Bootstrap 重写 ---------- */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 1rem;
            line-height: 1.5;
            padding: 0.65rem 1.5rem;
            border: 1px solid transparent;
            transition: all .25s ease;
            text-decoration: none;
            cursor: pointer;
            white-space: nowrap;
            box-shadow: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), #6a5cff);
            color: #fff;
            border-color: transparent;
            box-shadow: var(--shadow-btn);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background: linear-gradient(135deg, var(--primary-light), #7d6bff);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-btn-hover);
            border-color: transparent;
        }

        .btn-outline-light {
            background: rgba(255, 255, 255, 0.03);
            color: #e2e8f0;
            border: 1px solid rgba(255, 255, 255, 0.22);
            backdrop-filter: blur(8px);
        }

        .btn-outline-light:hover,
        .btn-outline-light:focus {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.4);
        }

        .card {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
        }

        .navbar {
            --bs-navbar-padding-y: 0;
        }

        .navbar-brand {
            padding-top: 0;
            padding-bottom: 0;
        }

        .form-control {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-btn);
            color: #e2e8f0;
            padding: 0.75rem 1rem;
        }

        .form-control:focus {
            background: rgba(255, 255, 255, 0.05);
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(62, 142, 255, 0.15);
            color: #fff;
        }

        .form-control::placeholder {
            color: rgba(148, 163, 184, 0.7);
        }

        .badge {
            font-weight: 600;
            padding: 0.45em 0.9em;
            border-radius: var(--radius-pill);
            font-size: 0.8rem;
            background: rgba(62, 142, 255, 0.18);
            color: var(--primary-light);
        }

        .breadcrumb {
            background: transparent;
            padding: 0;
            margin: 0;
        }

        .breadcrumb-item + .breadcrumb-item::before {
            color: var(--muted);
        }

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

        .breadcrumb-item.active {
            color: #cbd5e1;
        }

        /* ---------- 顶部导航 ---------- */
        .site-nav {
            background: transparent;
            padding: 18px 0;
            transition: all .35s ease;
            border-bottom: 1px solid transparent;
        }

        .site-nav.is-scrolled {
            background: rgba(7, 11, 26, 0.82);
            backdrop-filter: blur(14px) saturate(160%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
            padding: 10px 0;
        }

        .site-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
        }

        .site-logo i {
            font-size: 1.5rem;
            color: var(--primary);
            filter: drop-shadow(0 0 12px rgba(62, 142, 255, 0.55));
        }

        .site-logo em {
            font-style: normal;
            color: var(--primary-light);
            font-weight: 600;
            font-size: 0.9rem;
            opacity: 0.85;
        }

        .site-logo:hover {
            color: #fff;
        }

        .site-nav .nav-link {
            color: rgba(226, 232, 240, 0.82) !important;
            font-weight: 500;
            padding: 8px 16px !important;
            margin: 0 2px;
            border-radius: 30px;
            transition: all .25s ease;
            font-size: 0.95rem;
        }

        .site-nav .nav-link:hover,
        .site-nav .nav-link.active {
            color: #fff !important;
            background: rgba(62, 142, 255, 0.12);
            box-shadow: inset 0 0 0 1px rgba(62, 142, 255, 0.3);
        }

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

        .btn-login-nav {
            background: linear-gradient(135deg, var(--primary), #5d7bff);
            color: #fff;
            border-radius: var(--radius-pill);
            padding: 0.4rem 1.4rem;
            font-weight: 600;
            font-size: 0.95rem;
            box-shadow: 0 0 16px rgba(62, 142, 255, 0.3);
            transition: all .3s ease;
            border: none;
        }

        .btn-login-nav:hover {
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 0 26px rgba(62, 142, 255, 0.55);
        }

        /* ---------- Hero ---------- */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: 140px 0 90px;
            overflow: hidden;
            isolation: isolate;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center 28%;
            z-index: -2;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background:
                linear-gradient(180deg, rgba(7, 11, 26, 0.62) 0%, rgba(7, 11, 26, 0.82) 55%, rgba(7, 11, 26, 0.94) 100%);
            z-index: -1;
        }

        .hero-overlay::after {
            content: '';
            position: absolute;
            top: -20%;
            left: -10%;
            width: 60%;
            height: 60%;
            background: radial-gradient(circle, rgba(62, 142, 255, 0.28), transparent 70%);
            filter: blur(20px);
        }

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

        .hero-login-wrap {
            position: relative;
            z-index: 2;
        }

        .hero-title {
            font-size: clamp(2.2rem, 4vw, 3.2rem);
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #ffffff 0%, #bcd9ff 55%, #6ab5ff 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            filter: drop-shadow(0 0 18px rgba(62, 142, 255, 0.22));
        }

        .hero-sub {
            font-size: 1.15rem;
            color: #cbd5e1;
            max-width: 520px;
            margin-bottom: 32px;
            line-height: 1.8;
        }

        .hero-cta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .btn-hero {
            background: linear-gradient(135deg, var(--primary), #6a5cff);
            color: #fff;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: var(--radius-pill);
            font-size: 1rem;
            font-weight: 600;
            box-shadow: 0 0 26px rgba(62, 142, 255, 0.4);
            transition: all .3s ease;
        }

        .btn-hero:hover,
        .btn-hero:focus {
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 0 36px rgba(106, 181, 255, 0.65);
            background: linear-gradient(135deg, var(--primary-light), #7d6bff);
        }

        .btn-hero-ghost {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.28);
            color: #e2e8f0;
            border-radius: var(--radius-pill);
            padding: 0.8rem 2rem;
            font-weight: 500;
            backdrop-filter: blur(10px);
            transition: all .3s ease;
        }

        .btn-hero-ghost:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.5);
        }

        .loginglass {
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(18px) saturate(150%);
            -webkit-backdrop-filter: blur(18px) saturate(150%);
            border: 1px solid var(--border-glass);
            border-radius: 24px;
            padding: 32px 30px;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
            position: relative;
            max-width: 400px;
            margin-left: auto;
        }

        .loginglass::before {
            content: '';
            position: absolute;
            top: 0;
            left: 16px;
            right: 16px;
            height: 1px;
            background: rgba(255, 255, 255, 0.28);
            border-radius: 2px;
        }

        .login-title {
            font-size: 1.2rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 4px;
        }

        .login-sub {
            font-size: 0.85rem;
            color: var(--text-weak);
            margin-bottom: 24px;
        }

        .login-field {
            position: relative;
            margin-bottom: 20px;
        }

        .login-field i {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: rgba(148, 163, 184, 0.7);
            font-size: 0.95rem;
        }

        .login-input {
            width: 100%;
            background: transparent;
            border: none;
            border-bottom: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            font-size: 0.95rem;
            padding: 12px 12px 12px 44px;
            border-radius: 0;
            outline: none;
            transition: border-color .3s ease, box-shadow .3s ease;
        }

        .login-input:focus {
            border-bottom-color: var(--primary);
            box-shadow: 0 4px 12px -8px rgba(62, 142, 255, 0.5);
            background: transparent;
        }

        .login-input::placeholder {
            color: rgba(148, 163, 184, 0.65);
        }

        .btn-login-panel {
            width: 100%;
            background: linear-gradient(135deg, var(--primary), #6a5cff);
            color: #fff;
            border: none;
            padding: 12px 20px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            margin-top: 8px;
            box-shadow: var(--shadow-btn);
            transition: all .3s ease;
        }

        .btn-login-panel:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-btn-hover);
            color: #fff;
            background: linear-gradient(135deg, var(--primary-light), #7d6bff);
        }

        .login-links {
            display: flex;
            justify-content: space-between;
            margin-top: 16px;
            font-size: 0.85rem;
        }

        .login-links a {
            color: rgba(148, 163, 184, 0.85);
        }

        .login-links a:hover {
            color: var(--primary-light);
        }

        .scroll-down {
            position: absolute;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            color: rgba(255, 255, 255, 0.6);
            font-size: 1.2rem;
            animation: floatDown 2s infinite ease-in-out;
            z-index: 3;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
        }

        @keyframes floatDown {
            0%,
            100% {
                transform: translateX(-50%) translateY(0);
                opacity: 0.6;
            }
            50% {
                transform: translateX(-50%) translateY(10px);
                opacity: 1;
            }
        }

        /* ---------- 通用板块 ---------- */
        .section {
            padding: var(--section-pad) 0;
            position: relative;
        }

        .section-header {
            margin-bottom: 52px;
        }

        .section-header.center {
            text-align: center;
            max-width: 680px;
            margin-left: auto;
            margin-right: auto;
        }

        .section-header .section-tag {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary-light);
            background: rgba(62, 142, 255, 0.1);
            padding: 4px 16px;
            border-radius: var(--radius-pill);
            margin-bottom: 12px;
            border: 1px solid rgba(62, 142, 255, 0.2);
        }

        .section-header h2 {
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: #f8fafc;
        }

        .section-header p {
            color: var(--text-weak);
            font-size: 0.95rem;
            margin-bottom: 0;
        }

        .section-header.between {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }

        .btn-more {
            border-radius: var(--radius-pill);
            font-size: 0.9rem;
        }

        /* ---------- 玩法步骤 ---------- */
        .section-howto {
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }

        .step-path {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 20px;
            position: relative;
        }

        .step-path::before {
            content: '';
            position: absolute;
            top: 52px;
            left: 12%;
            right: 12%;
            height: 2px;
            background: linear-gradient(90deg, rgba(62, 142, 255, 0.2), rgba(53, 208, 194, 0.45), rgba(255, 176, 58, 0.25));
            border-radius: 2px;
        }

        .step-item {
            flex: 1;
            text-align: center;
            position: relative;
            z-index: 1;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.07);
            border-radius: var(--radius-card);
            padding: 32px 18px 26px;
            backdrop-filter: blur(6px);
            transition: border-color .3s ease, transform .3s ease, box-shadow .3s ease;
        }

        .step-item:hover {
            border-color: rgba(62, 142, 255, 0.4);
            transform: translateY(-4px);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
        }

        .step-icon {
            width: 72px;
            height: 72px;
            margin: 0 auto 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, rgba(62, 142, 255, 0.2), rgba(53, 208, 194, 0.12));
            border: 1px solid rgba(62, 142, 255, 0.28);
            border-radius: 50%;
            font-size: 1.6rem;
            color: var(--primary-light);
            box-shadow: 0 0 24px rgba(62, 142, 255, 0.12);
        }

        .step-num {
            display: block;
            font-size: 0.8rem;
            font-weight: 700;
            color: rgba(148, 163, 184, 0.6);
            letter-spacing: 1px;
            margin-bottom: 8px;
        }

        .step-item h3 {
            font-size: 1.05rem;
            margin-bottom: 8px;
            color: #edf2f7;
        }

        .step-item p {
            font-size: 0.85rem;
            color: var(--text-weak);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ---------- 奖励预览 ---------- */
        .section-rewards {
            background: linear-gradient(180deg, rgba(62, 142, 255, 0.02), transparent 60%);
        }

        .reward-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.09);
            border-radius: var(--radius-card);
            padding: 30px 26px;
            height: 100%;
            display: flex;
            flex-direction: column;
            position: relative;
            transition: all .3s ease;
        }

        .reward-card:hover {
            border-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }

        .reward-main {
            background: linear-gradient(135deg, rgba(62, 142, 255, 0.1), rgba(255, 176, 58, 0.05));
            border-color: rgba(62, 142, 255, 0.3);
        }

        .reward-main::after {
            content: '';
            position: absolute;
            top: 0;
            left: 20px;
            right: 20px;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
        }

        .reward-icon {
            width: 58px;
            height: 58px;
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.35rem;
            margin-bottom: 20px;
            background: rgba(62, 142, 255, 0.14);
            border: 1px solid rgba(62, 142, 255, 0.25);
            color: var(--primary-light);
        }

        .reward-main .reward-icon {
            background: linear-gradient(135deg, rgba(255, 176, 58, 0.2), rgba(62, 142, 255, 0.1));
            border-color: rgba(255, 176, 58, 0.3);
            color: var(--gold);
            box-shadow: 0 0 24px rgba(255, 176, 58, 0.16);
        }

        .reward-badge {
            position: absolute;
            top: 24px;
            right: 24px;
            font-size: 0.7rem;
            font-weight: 600;
            padding: 3px 12px;
            background: rgba(255, 176, 58, 0.15);
            color: var(--gold);
            border: 1px solid rgba(255, 176, 58, 0.3);
            border-radius: var(--radius-pill);
        }

        .reward-card h3 {
            font-size: 1.15rem;
            margin-bottom: 6px;
            color: #f8fafc;
        }

        .reward-value {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--gold);
            margin-bottom: 12px;
        }

        .reward-desc {
            font-size: 0.85rem;
            color: var(--text-weak);
            margin-bottom: 16px;
            line-height: 1.7;
        }

        .reward-condition {
            font-size: 0.82rem;
            color: rgba(148, 163, 184, 0.75);
            border: 1px solid rgba(255, 255, 255, 0.06);
            background: rgba(255, 255, 255, 0.02);
            padding: 8px 14px;
            border-radius: 10px;
            margin-top: auto;
            margin-bottom: 16px;
        }

        .reward-condition i {
            color: var(--accent);
            margin-right: 6px;
        }

        .reward-card .btn {
            align-self: flex-start;
        }

        .reward-main .btn {
            align-self: stretch;
        }

        /* ---------- 最新资讯 ---------- */
        .section-news {
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .news-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-card);
            overflow: hidden;
            height: 100%;
            transition: border-color .3s ease, transform .3s ease, box-shadow .3s ease;
        }

        .news-card:hover {
            border-color: rgba(62, 142, 255, 0.35);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }

        .news-card-link {
            display: flex;
            flex-direction: column;
            height: 100%;
            color: inherit;
        }

        .news-card-link:hover {
            color: inherit;
        }

        .news-cover {
            position: relative;
            height: 200px;
            overflow: hidden;
        }

        .news-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .news-card:hover .news-img {
            transform: scale(1.03);
        }

        .news-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            font-size: 0.72rem;
            font-weight: 600;
            background: rgba(7, 11, 26, 0.85);
            backdrop-filter: blur(8px);
            color: var(--primary-light);
            border: 1px solid rgba(62, 142, 255, 0.3);
            padding: 4px 14px;
            border-radius: var(--radius-pill);
        }

        .news-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .news-body h3 {
            font-size: 1.05rem;
            margin-bottom: 10px;
            color: #edf2f7;
            line-height: 1.6;
        }

        .news-summary {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            font-size: 0.88rem;
            color: var(--text-weak);
            margin-bottom: 16px;
            line-height: 1.7;
        }

        .news-meta {
            margin-top: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: rgba(148, 163, 184, 0.8);
        }

        .news-date i {
            margin-right: 4px;
        }

        .read-more {
            color: var(--primary-light);
            font-weight: 500;
            transition: color .2s ease;
        }

        .read-more i {
            transition: transform .2s ease;
            font-size: 0.75rem;
            margin-left: 2px;
        }

        .news-card:hover .read-more i {
            transform: translateX(4px);
        }

        .news-empty {
            max-width: 520px;
            margin: 0 auto;
            text-align: center;
            padding: 60px 24px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px dashed rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-card);
        }

        .news-empty i {
            font-size: 2.4rem;
            color: rgba(148, 163, 184, 0.5);
            margin-bottom: 14px;
        }

        .news-empty p {
            color: var(--text-weak);
            font-size: 0.92rem;
            margin-bottom: 0;
        }

        /* ---------- 任务进度 ---------- */
        .section-tasks {
            background: linear-gradient(180deg, rgba(53, 208, 194, 0.03), transparent 50%);
        }

        .task-progress-block {
            max-width: 420px;
        }

        .progress-info {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            margin-bottom: 14px;
        }

        .progress-info span {
            color: var(--text-weak);
            font-size: 0.9rem;
        }

        .progress-info strong {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--accent);
        }

        .progress {
            height: 12px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-pill);
            overflow: hidden;
            margin-bottom: 10px;
        }

        .progress-bar {
            background: linear-gradient(90deg, var(--accent), var(--primary));
            border-radius: var(--radius-pill);
            position: relative;
            font-size: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
        }

        .progress-tip {
            font-size: 0.82rem;
            color: var(--text-weak);
            margin-bottom: 0;
        }

        .task-list-wrap {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .task-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 18px;
            padding: 18px 20px;
            transition: border-color .3s ease, transform .3s ease;
            flex-wrap: wrap;
        }

        .task-item:hover {
            border-color: rgba(255, 255, 255, 0.16);
        }

        .task-item.done {
            border-left: 3px solid var(--accent);
        }

        .task-item.active {
            border-left: 3px solid var(--primary);
        }

        .task-item.locked {
            opacity: 0.6;
            border-left: 3px solid var(--muted);
        }

        .task-icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            font-size: 1rem;
        }

        .task-item.done .task-icon {
            background: rgba(53, 208, 194, 0.12);
            color: var(--accent);
            border: 1px solid rgba(53, 208, 194, 0.3);
        }

        .task-item.active .task-icon {
            background: rgba(62, 142, 255, 0.12);
            color: var(--primary-light);
            border: 1px solid rgba(62, 142, 255, 0.3);
        }

        .task-item.locked .task-icon {
            background: rgba(100, 116, 139, 0.1);
            color: var(--muted);
            border: 1px solid rgba(100, 116, 139, 0.25);
        }

        .task-content {
            flex: 1;
            min-width: 180px;
        }

        .task-content h3 {
            font-size: 0.98rem;
            margin-bottom: 2px;
            color: #f1f5f9;
        }

        .task-content h3 small {
            font-size: 0.78rem;
            color: var(--primary-light);
            margin-left: 6px;
        }

        .task-content p {
            font-size: 0.8rem;
            color: var(--text-weak);
            margin-bottom: 0;
        }

        .task-badge {
            font-size: 0.72rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            white-space: nowrap;
        }

        .task-badge.done {
            background: rgba(53, 208, 194, 0.12);
            color: var(--accent);
            border: 1px solid rgba(53, 208, 194, 0.3);
        }

        .task-badge.active {
            background: rgba(62, 142, 255, 0.13);
            color: var(--primary-light);
            border: 1px solid rgba(62, 142, 255, 0.3);
        }

        .task-badge.locked {
            background: rgba(100, 116, 139, 0.1);
            color: var(--muted);
            border: 1px solid rgba(100, 116, 139, 0.25);
        }

        .task-item .btn-sm {
            padding: 6px 16px;
            font-size: 0.82rem;
        }

        .btn-pulse {
            position: relative;
        }

        .btn-pulse::after {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: var(--radius-btn);
            background: rgba(62, 142, 255, 0.4);
            animation: pulseRing 1.8s ease-out infinite;
            z-index: -1;
        }

        @keyframes pulseRing {
            0% {
                transform: scale(1);
                opacity: 0.5;
            }
            100% {
                transform: scale(1.18);
                opacity: 0;
            }
        }

        /* ---------- 参与 CTA ---------- */
        .cta-section {
            position: relative;
            padding: 120px 0;
            text-align: center;
            overflow: hidden;
            isolation: isolate;
        }

        .cta-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            z-index: -2;
        }

        .cta-overlay {
            position: absolute;
            inset: 0;
            background: rgba(7, 11, 26, 0.78);
            z-index: -1;
        }

        .cta-content {
            max-width: 620px;
            margin: 0 auto;
            padding: 20px;
        }

        .cta-content h2 {
            font-size: 2rem;
            margin-bottom: 16px;
            color: #ffffff;
        }

        .cta-content p {
            color: #cbd5e1;
            font-size: 1rem;
            margin-bottom: 32px;
        }

        .btn-cta {
            background: linear-gradient(135deg, var(--gold), #ff8a3a);
            color: #0f172a;
            border: none;
            padding: 0.9rem 3rem;
            border-radius: var(--radius-pill);
            font-size: 1.1rem;
            font-weight: 700;
            box-shadow: 0 0 30px rgba(255, 176, 58, 0.4);
            transition: all .3s ease;
        }

        .btn-cta:hover {
            color: #0f172a;
            transform: translateY(-2px);
            box-shadow: 0 0 42px rgba(255, 176, 58, 0.6);
            background: linear-gradient(135deg, #ffc25e, #ff954d);
        }

        /* ---------- FAQ ---------- */
        .section-faq {
            padding: calc(var(--section-pad) - 20px) 0 var(--section-pad);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 16px;
            overflow: hidden;
            transition: border-color .3s ease;
        }

        .faq-item:has(.collapse.show) {
            border-color: rgba(62, 142, 255, 0.3);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            background: transparent;
            border: none;
            color: #e2e8f0;
            padding: 20px 24px;
            font-size: 0.98rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            transition: color .2s ease;
        }

        .faq-question i {
            font-size: 0.9rem;
            color: var(--primary-light);
            transition: transform .3s ease;
            flex-shrink: 0;
        }

        .faq-item:has(.collapse.show) .faq-question i {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 24px 20px 56px;
            color: var(--text-weak);
            font-size: 0.9rem;
            line-height: 1.75;
        }

        /* ---------- 页脚 ---------- */
        .site-footer {
            background: rgba(7, 11, 26, 0.97);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 70px 0 30px;
            position: relative;
        }

        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(62, 142, 255, 0.35), rgba(53, 208, 194, 0.2), transparent);
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 700;
            color: #f8fafc;
            margin-bottom: 14px;
        }

        .footer-brand i {
            font-size: 1.4rem;
            color: var(--primary);
            filter: drop-shadow(0 0 10px rgba(62, 142, 255, 0.5));
        }

        .footer-desc {
            font-size: 0.85rem;
            color: var(--text-weak);
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-heading {
            font-size: 0.95rem;
            font-weight: 600;
            color: #e2e8f0;
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-heading::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 24px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), transparent);
            border-radius: 2px;
        }

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

        .footer-links a,
        .footer-links span {
            font-size: 0.85rem;
            color: var(--text-weak);
            transition: color .2s ease;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            margin-top: 52px;
            padding-top: 24px;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 0.78rem;
            color: rgba(100, 116, 139, 0.65);
            margin-bottom: 0;
        }

        /* ---------- 移动端底部 Tab ---------- */
        .mobile-tabbar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            display: flex;
            background: rgba(7, 11, 26, 0.95);
            backdrop-filter: blur(18px) saturate(150%);
            -webkit-backdrop-filter: blur(18px) saturate(150%);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 6px 8px 10px;
            justify-content: space-around;
        }

        .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 3px;
            color: rgba(148, 163, 184, 0.85);
            font-size: 0.68rem;
            font-weight: 500;
            padding: 6px 12px;
            border-radius: 14px;
            transition: all .25s ease;
            background: transparent;
        }

        .tab-item i {
            font-size: 1.2rem;
            transition: transform .2s ease;
        }

        .tab-item:hover {
            color: #e2e8f0;
        }

        .tab-item.active {
            color: var(--primary-light);
            background: rgba(62, 142, 255, 0.12);
            box-shadow: 0 0 22px rgba(62, 142, 255, 0.2);
        }

        .tab-item.active i {
            transform: translateY(-1px);
        }

        /* ---------- 响应式调整 ---------- */
        @media (min-width: 992px) {
            .mobile-tabbar {
                display: none;
            }
        }

        @media (max-width: 991.98px) {
            .mobile-tabbar {
                display: flex;
            }

            body {
                padding-bottom: 70px;
            }

            .site-footer {
                padding-bottom: 90px;
            }

            .section {
                --section-pad: 64px;
            }

            .loginglass {
                margin: 0 auto;
            }

            .hero {
                padding: 110px 0 70px;
            }

            .scroll-down {
                display: none;
            }
        }

        @media (min-width: 576px) and (max-width: 991.98px) {
            .rewards-row {
                display: flex;
                flex-wrap: nowrap;
                overflow-x: auto;
                scroll-snap-type: x mandatory;
                padding-bottom: 12px;
            }

            .rewards-row .col-lg-6 {
                flex: 0 0 320px;
                max-width: 320px;
                scroll-snap-align: start;
            }

            .rewards-row .col-lg-3 {
                flex: 0 0 230px;
                max-width: 230px;
                scroll-snap-align: start;
            }

            .step-path {
                flex-wrap: nowrap;
                overflow-x: auto;
                padding-bottom: 12px;
            }

            .step-item {
                flex: 0 0 220px;
            }
        }

        @media (max-width: 575.98px) {
            .section {
                --section-pad: 56px;
            }

            .hero {
                padding: 96px 0 56px;
            }

            .hero-title {
                font-size: 1.9rem;
            }

            .hero-sub {
                font-size: 0.95rem;
            }

            .hero-cta {
                flex-direction: column;
                align-items: stretch;
            }

            .hero-cta .btn {
                width: 100%;
            }

            .loginglass {
                margin-top: 40px;
                padding: 24px 20px;
            }

            .section-header {
                margin-bottom: 36px;
            }

            .section-header h2 {
                font-size: 1.4rem;
            }

            .section-header.between {
                flex-direction: column;
                align-items: flex-start;
            }

            .step-path {
                flex-direction: column;
                gap: 16px;
            }

            .step-path::before {
                display: none;
            }

            .step-item {
                width: 100%;
            }

            .task-item {
                padding: 14px 14px;
            }

            .task-badge {
                margin-left: 56px;
            }

            .faq-answer {
                padding-left: 24px;
            }

            .cta-section {
                padding: 72px 0;
            }

            .cta-content h2 {
                font-size: 1.5rem;
            }

            .news-cover {
                height: 170px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-dark: #070B1A;
            --bg-deep: #0A1026;
            --bg-panel: rgba(255, 255, 255, 0.04);
            --bg-glass: rgba(255, 255, 255, 0.06);
            --primary: #3E8EFF;
            --primary-light: #6AB5FF;
            --accent: #35D0C2;
            --gold: #FFB03A;
            --muted: #64748B;
            --danger: #FF5D73;
            --text-main: #E8EDF7;
            --text-sub: #B6C2DC;
            --text-muted: #9AA7C0;
            --border-light: rgba(255, 255, 255, 0.14);
            --border-subtle: rgba(255, 255, 255, 0.08);
            --radius-lg: 20px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --shadow-card: 0 12px 40px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 24px rgba(62, 142, 255, 0.45);
            --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --section-pad: 96px;
            --transition-base: all .3s ease;
        }

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

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

        body {
            font-family: var(--font-stack);
            background-color: var(--bg-dark);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 1rem;
            overflow-x: hidden;
        }

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

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

        a:hover {
            color: #fff;
        }

        ul,
        ol {
            padding-left: 1.2rem;
        }

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

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        .section {
            padding: var(--section-pad) 0;
            position: relative;
        }

        .section-sm {
            padding: 56px 0;
        }

        .section-head {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-head h2 {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: 1px;
            margin-bottom: 12px;
        }

        .section-head p {
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto;
            font-size: 0.95rem;
        }

        .section-head .head-line {
            width: 48px;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 4px;
            margin: 14px auto 0;
        }

        /* 按钮 */
        .btn {
            border-radius: var(--radius-sm);
            padding: 12px 28px;
            font-size: 1rem;
            font-weight: 600;
            border: 1px solid transparent;
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), #2A6FE8);
            color: #fff !important;
            border: none;
            box-shadow: var(--shadow-glow);
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, #2F7EF2, #1E5FD0);
            transform: translateY(-2px);
            box-shadow: 0 0 36px rgba(106, 181, 255, 0.65);
            color: #fff !important;
        }

        .btn-outline-light {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-light);
            color: var(--text-main) !important;
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.24);
            transform: translateY(-2px);
        }

        .btn-gold {
            background: linear-gradient(135deg, var(--gold), #F09A1E);
            color: #101523 !important;
            border: none;
            font-weight: 700;
            box-shadow: 0 0 24px rgba(255, 176, 58, 0.35);
        }

        .btn-gold:hover {
            box-shadow: 0 0 36px rgba(255, 176, 58, 0.55);
            transform: translateY(-2px);
            color: #101523 !important;
        }

        .btn-lg {
            padding: 16px 44px;
            font-size: 1.1rem;
            border-radius: 50px;
        }

        /* 顶部导航 */
        .site-nav {
            padding: 18px 0;
            background: transparent;
            transition: var(--transition-base);
            border-bottom: 1px solid transparent;
        }

        .site-nav.scrolled {
            background: rgba(7, 11, 26, 0.82);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 12px 0;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
        }

        .site-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.45rem;
            font-weight: 800;
            color: #fff !important;
            letter-spacing: 1px;
        }

        .site-logo i {
            color: var(--primary-light);
            font-size: 1.6rem;
            filter: drop-shadow(0 0 8px rgba(62, 142, 255, 0.6));
        }

        .site-logo span {
            background: linear-gradient(120deg, #fff 20%, var(--primary-light) 60%, var(--accent) 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .site-logo em {
            font-style: normal;
            color: var(--primary-light);
            -webkit-text-fill-color: var(--primary-light);
            margin-left: 2px;
        }

        .site-nav .navbar-nav .nav-link {
            color: var(--text-sub);
            font-size: 0.95rem;
            font-weight: 500;
            margin: 0 8px;
            padding: 8px 14px;
            border-radius: 8px;
            position: relative;
        }

        .site-nav .navbar-nav .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }

        .site-nav .navbar-nav .nav-link.active {
            color: var(--primary-light);
            background: rgba(62, 142, 255, 0.1);
        }

        .site-nav .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            bottom: 4px;
            width: 18px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            box-shadow: 0 0 8px var(--primary);
        }

        .btn-login-nav {
            background: linear-gradient(135deg, rgba(62, 142, 255, 0.9), rgba(42, 111, 232, 0.9));
            color: #fff;
            border-radius: 50px;
            padding: 9px 24px;
            font-weight: 600;
            font-size: 0.92rem;
            box-shadow: 0 0 16px rgba(62, 142, 255, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.12);
        }

        .btn-login-nav:hover {
            box-shadow: 0 0 28px rgba(62, 142, 255, 0.55);
            transform: translateY(-2px);
            color: #fff;
        }

        .navbar-toggler {
            border: 1px solid var(--border-light);
            border-radius: 8px;
            padding: 6px 10px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(62, 142, 255, 0.25);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* 分类页 Hero */
        .page-hero {
            position: relative;
            min-height: 480px;
            display: flex;
            align-items: center;
            padding: 140px 0 90px;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center 30%;
            background-attachment: fixed;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7, 11, 26, 0.92) 0%, rgba(7, 11, 26, 0.82) 50%, rgba(7, 11, 26, 0.96) 100%);
            z-index: 1;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background:
                radial-gradient(ellipse at 85% 20%, rgba(62, 142, 255, 0.2), transparent 50%),
                radial-gradient(ellipse at 10% 80%, rgba(53, 208, 194, 0.12), transparent 45%);
            z-index: 1;
        }

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

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            padding: 0;
            margin-bottom: 22px;
            list-style: none;
            background: transparent;
        }

        .breadcrumb-item a {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

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

        .breadcrumb-item.active {
            color: var(--primary-light);
        }

        .breadcrumb-item+.breadcrumb-item::before {
            content: '/';
            color: var(--muted);
            padding: 0 8px;
        }

        .hero-title {
            font-size: clamp(2.2rem, 4vw, 3.2rem);
            font-weight: 700;
            margin-bottom: 14px;
            color: #fff;
            line-height: 1.3;
        }

        .hero-title .grad-text {
            background: linear-gradient(120deg, var(--primary-light) 10%, var(--accent) 50%, var(--gold) 90%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-sub {
            font-size: 1.15rem;
            color: var(--text-sub);
            max-width: 600px;
            margin-bottom: 10px;
            line-height: 1.6;
        }

        .hero-desc {
            color: var(--text-muted);
            max-width: 700px;
            margin-bottom: 28px;
            font-size: 0.98rem;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        /* 图文混排 */
        .feature-block {
            display: flex;
            align-items: center;
            gap: 56px;
            margin-bottom: 72px;
        }

        .feature-block.reverse {
            flex-direction: row-reverse;
        }

        .feature-media {
            flex: 0 0 46%;
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            box-shadow: var(--shadow-card);
        }

        .feature-media img {
            width: 100%;
            height: 340px;
            object-fit: cover;
            transition: transform .6s ease;
        }

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

        .feature-media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(200deg, rgba(62, 142, 255, 0.06), transparent 50%);
            pointer-events: none;
        }

        .feature-body {
            flex: 1;
        }

        .feature-body h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-main);
        }

        .feature-body p {
            color: var(--text-sub);
            margin-bottom: 16px;
            line-height: 1.9;
        }

        .feature-list {
            list-style: none;
            padding: 0;
            margin: 18px 0 0;
        }

        .feature-list li {
            position: relative;
            padding-left: 32px;
            margin-bottom: 12px;
            color: var(--text-sub);
        }

        .feature-list li::before {
            content: '\f058';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 2px;
            color: var(--accent);
            font-size: 1.05rem;
        }

        /* 内容卡片 */
        .content-card {
            background: var(--bg-panel);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 36px 30px;
            height: 100%;
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .content-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.28), transparent);
        }

        .content-card:hover {
            border-color: rgba(62, 142, 255, 0.35);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }

        .card-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 20px;
            background: rgba(62, 142, 255, 0.1);
            color: var(--primary-light);
            border: 1px solid rgba(62, 142, 255, 0.2);
        }

        .card-icon.gold {
            background: rgba(255, 176, 58, 0.1);
            color: var(--gold);
            border-color: rgba(255, 176, 58, 0.2);
        }

        .card-icon.accent {
            background: rgba(53, 208, 194, 0.1);
            color: var(--accent);
            border-color: rgba(53, 208, 194, 0.2);
        }

        .content-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .content-card p {
            color: var(--text-muted);
            font-size: 0.92rem;
            margin-bottom: 0;
        }

        .content-card .value-tag {
            display: inline-block;
            background: rgba(255, 176, 58, 0.12);
            color: var(--gold);
            border-radius: 50px;
            padding: 4px 14px;
            font-size: 0.82rem;
            font-weight: 600;
            margin-top: 14px;
        }

        /* 流程步骤 */
        .process-section {
            background: var(--bg-deep);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
            overflow: hidden;
        }

        .process-steps {
            display: flex;
            justify-content: space-between;
            gap: 20px;
            position: relative;
        }

        .process-steps::before {
            content: '';
            position: absolute;
            top: 44px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent), var(--gold));
            border-radius: 2px;
            opacity: .45;
        }

        .process-item {
            flex: 1;
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .step-number {
            width: 76px;
            height: 76px;
            border-radius: 50%;
            background: var(--bg-dark);
            border: 3px solid var(--primary);
            color: var(--primary-light);
            font-size: 1.6rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: 0 0 22px rgba(62, 142, 255, 0.25);
        }

        .process-item:nth-child(2) .step-number {
            border-color: var(--accent);
            color: var(--accent);
            box-shadow: 0 0 22px rgba(53, 208, 194, 0.25);
        }

        .process-item:nth-child(3) .step-number {
            border-color: var(--gold);
            color: var(--gold);
            box-shadow: 0 0 22px rgba(255, 176, 58, 0.25);
        }

        .process-item:nth-child(4) .step-number {
            border-color: var(--primary-light);
            color: var(--primary-light);
            box-shadow: 0 0 22px rgba(106, 181, 255, 0.25);
        }

        .process-item h4 {
            font-size: 1.08rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .process-item p {
            font-size: 0.88rem;
            color: var(--text-muted);
            max-width: 220px;
            margin: 0 auto;
        }

        /* 赛事卡片 */
        .game-card {
            background: var(--bg-panel);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 100%;
            transition: var(--transition-base);
        }

        .game-card:hover {
            transform: translateY(-4px);
            border-color: rgba(62, 142, 255, 0.3);
            box-shadow: var(--shadow-card);
        }

        .game-thumb {
            position: relative;
            overflow: hidden;
            height: 200px;
        }

        .game-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

        .game-card:hover .game-thumb img {
            transform: scale(1.04);
        }

        .game-thumb .game-tag {
            position: absolute;
            left: 14px;
            top: 14px;
            background: rgba(7, 11, 26, 0.7);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 50px;
            padding: 5px 14px;
            font-size: 0.78rem;
            font-weight: 600;
            color: #fff;
        }

        .game-body {
            padding: 24px;
        }

        .game-body h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .game-body p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 16px;
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .game-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .game-meta .read-link {
            color: var(--primary-light);
            font-weight: 600;
        }

        .game-meta .read-link:hover {
            color: #fff;
            text-decoration: underline;
        }

        /* 不规则卡片栅格 */
        .reward-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 24px;
            align-items: stretch;
        }

        .reward-card-main {
            background: linear-gradient(160deg, rgba(62, 142, 255, 0.1), rgba(255, 255, 255, 0.03));
            border: 1px solid rgba(62, 142, 255, 0.3);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            position: relative;
            overflow: hidden;
        }

        .reward-card-main::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(62, 142, 255, 0.2), transparent 70%);
            border-radius: 50%;
        }

        .reward-card-main h4 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .reward-card-main p {
            color: var(--text-sub);
            font-size: 0.93rem;
        }

        .reward-card-main .reward-badge {
            display: inline-block;
            background: rgba(255, 176, 58, 0.15);
            color: var(--gold);
            border: 1px solid rgba(255, 176, 58, 0.3);
            padding: 4px 16px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.85rem;
            margin-bottom: 14px;
        }

        .reward-card-sub {
            background: var(--bg-panel);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

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

        .reward-card-sub p {
            color: var(--text-muted);
            font-size: 0.88rem;
            margin-bottom: 0;
        }

        .reward-card-sub .reward-icon {
            font-size: 1.8rem;
            color: var(--primary-light);
            margin-bottom: 12px;
        }

        /* FAQ */
        .faq-section {
            background: var(--bg-deep);
        }

        .accordion {
            max-width: 780px;
            margin: 0 auto;
        }

        .accordion-item {
            background: var(--bg-panel);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md) !important;
            margin-bottom: 16px;
            overflow: hidden;
        }

        .accordion-button {
            background: transparent;
            color: var(--text-main);
            font-weight: 600;
            font-size: 1rem;
            padding: 20px 24px;
            box-shadow: none;
            border-radius: 0;
        }

        .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%233E8EFF'%3e%3cpath fill-rule='evenodd' d='M8 4a.5.5 0 0 1 .5.5v3h3a.5.5 0 0 1 0 1h-3v3a.5.5 0 0 1-1 0v-3h-3a.5.5 0 0 1 0-1h3v-3A.5.5 0 0 1 8 4z'/%3e%3c/svg%3e");
            transition: var(--transition-base);
        }

        .accordion-button:not(.collapsed) {
            background: rgba(62, 142, 255, 0.08);
            color: var(--primary-light);
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(62, 142, 255, 0.15);
        }

        .accordion-body {
            padding: 0 24px 22px;
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.8;
        }

        /* CTA */
        .cta-section {
            position: relative;
            padding: 100px 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            text-align: center;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7, 11, 26, 0.9), rgba(7, 11, 26, 0.96));
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .cta-section p {
            color: var(--text-sub);
            max-width: 560px;
            margin: 0 auto 32px;
            font-size: 1rem;
        }

        /* 相关栏目 */
        .related-section {
            padding: 56px 0;
        }

        .related-card {
            background: var(--bg-panel);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 32px;
            text-align: center;
            transition: var(--transition-base);
            display: block;
            height: 100%;
            color: var(--text-main);
        }

        .related-card:hover {
            transform: translateY(-4px);
            border-color: rgba(62, 142, 255, 0.35);
            color: var(--text-main);
            box-shadow: var(--shadow-card);
        }

        .related-card i {
            font-size: 2rem;
            color: var(--primary-light);
            margin-bottom: 16px;
        }

        .related-card h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 8px;
        }

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

        /* 页脚 */
        .site-footer {
            background: #050814;
            padding: 72px 0 28px;
            border-top: 1px solid var(--border-subtle);
            position: relative;
        }

        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(62, 142, 255, 0.5), rgba(53, 208, 194, 0.3), transparent);
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand i {
            color: var(--primary-light);
            font-size: 1.5rem;
        }

        .footer-brand span {
            background: linear-gradient(120deg, #fff, var(--primary-light));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .footer-desc {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .footer-heading {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-heading::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

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

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

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: var(--transition-base);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            margin-top: 48px;
            text-align: center;
        }

        .footer-bottom p {
            color: var(--muted);
            font-size: 0.82rem;
            margin: 0;
        }

        /* 底部 Tab 移动端 */
        .mobile-tabbar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(7, 11, 26, 0.94);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: none;
            justify-content: space-around;
            padding: 8px 0 12px;
        }

        .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            color: var(--text-muted);
            font-size: 0.72rem;
            padding: 6px 12px;
            border-radius: 12px;
            transition: var(--transition-base);
        }

        .tab-item i {
            font-size: 1.2rem;
        }

        .tab-item:hover,
        .tab-item.active {
            color: var(--primary-light);
        }

        .tab-item.active i {
            text-shadow: 0 0 12px rgba(62, 142, 255, 0.8);
        }

        /* 响应式 */
        @media (max-width: 991.98px) {
            .site-nav {
                background: rgba(7, 11, 26, 0.9);
                backdrop-filter: blur(14px);
                -webkit-backdrop-filter: blur(14px);
            }

            .site-nav .navbar-collapse {
                background: rgba(7, 11, 26, 0.98);
                border: 1px solid var(--border-subtle);
                border-radius: var(--radius-md);
                padding: 20px;
                margin-top: 12px;
            }

            .site-nav .navbar-nav .nav-link {
                padding: 12px 16px;
                margin: 2px 0;
            }

            .nav-action {
                margin-top: 12px;
            }

            .mobile-tabbar {
                display: flex;
            }

            body {
                padding-bottom: 80px;
            }

            .page-hero {
                min-height: 420px;
                padding: 120px 0 70px;
                background-attachment: scroll;
            }

            .feature-block,
            .feature-block.reverse {
                flex-direction: column;
                gap: 32px;
            }

            .feature-media {
                flex: 0 0 100%;
                width: 100%;
            }

            .feature-media img {
                height: 260px;
            }

            .reward-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .process-steps {
                flex-direction: column;
                gap: 32px;
            }

            .process-steps::before {
                display: none;
            }
        }

        @media (max-width: 767.98px) {
            .section {
                --section-pad: 56px;
            }

            .hero-title {
                font-size: 2rem;
            }

            .hero-sub {
                font-size: 1rem;
            }

            .section-head {
                margin-bottom: 32px;
            }

            .section-head h2 {
                font-size: 1.45rem;
            }

            .feature-media img {
                height: 220px;
            }

            .process-item {
                display: flex;
                gap: 20px;
                text-align: left;
                align-items: flex-start;
            }

            .step-number {
                margin: 0;
                flex-shrink: 0;
                width: 64px;
                height: 64px;
                font-size: 1.3rem;
            }

            .process-item p {
                margin: 0;
            }

            .content-card {
                margin-bottom: 20px;
            }

            .cta-section {
                padding: 72px 0;
            }

            .cta-section h2 {
                font-size: 1.5rem;
            }

            .footer-bottom {
                margin-top: 32px;
            }
        }

        @media (max-width: 575.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .btn-lg {
                padding: 14px 32px;
            }

            .game-thumb {
                height: 180px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .hero-actions .btn {
                justify-content: center;
            }

            .feature-list li {
                font-size: 0.9rem;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #070B1A;
            --bg-deep: #050812;
            --bg-card: rgba(255,255,255,0.04);
            --bg-glass: rgba(255,255,255,0.06);
            --primary: #3E8EFF;
            --primary-bright: #6AB5FF;
            --secondary: #35D0C2;
            --accent: #FFB03A;
            --danger: #FF5D73;
            --disabled: #64748B;
            --text-primary: #EAF1FF;
            --text-secondary: rgba(234,241,255,0.72);
            --text-muted: rgba(234,241,255,0.45);
            --border: rgba(255,255,255,0.14);
            --border-muted: rgba(255,255,255,0.08);
            --radius-card: 20px;
            --radius-btn: 12px;
            --radius-img: 16px;
            --shadow-card: 0 12px 40px rgba(0,0,0,0.45);
            --shadow-glow: 0 0 24px rgba(62,142,255,0.45);
            --shadow-glow-hover: 0 0 36px rgba(106,181,255,0.65);
            --font-main: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
            --nav-height: 72px;
            --section-pad: 96px;
            --container-max: 1200px;
        }

        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-main);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; }
        a { color: var(--primary); text-decoration: none; transition: all .3s ease; }
        a:hover { color: var(--primary-bright); }
        .container { max-width: var(--container-max); }

        /* ===== 顶部导航 ===== */
        .site-nav {
            padding: 16px 0;
            transition: all .4s ease;
            background: transparent;
            border-bottom: 1px solid transparent;
        }
        .site-nav.scrolled {
            background: rgba(7,11,26,0.85);
            backdrop-filter: blur(14px) saturate(150%);
            -webkit-backdrop-filter: blur(14px) saturate(150%);
            border-bottom: 1px solid rgba(255,255,255,0.08);
            box-shadow: 0 8px 32px rgba(0,0,0,0.35);
            padding: 10px 0;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff !important;
            letter-spacing: .5px;
        }
        .site-logo i {
            color: var(--primary);
            font-size: 1.35rem;
            filter: drop-shadow(0 0 8px rgba(62,142,255,0.6));
        }
        .site-logo em {
            font-style: normal;
            color: var(--primary-bright);
        }
        .site-nav .nav-link {
            color: rgba(234,241,255,0.8);
            font-weight: 500;
            padding: .5rem 1rem !important;
            position: relative;
            transition: color .3s;
            border-radius: 6px;
        }
        .site-nav .nav-link:hover,
        .site-nav .nav-link.active {
            color: #fff;
        }
        .site-nav .nav-link::after {
            content: '';
            display: block;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            width: 0;
            transition: width .35s ease;
            border-radius: 2px;
            margin-top: 2px;
        }
        .site-nav .nav-link:hover::after,
        .site-nav .nav-link.active::after {
            width: 100%;
        }
        .btn-login-nav {
            background: linear-gradient(135deg, var(--primary), #2563EB);
            border: none;
            color: #fff;
            padding: .55rem 1.4rem;
            border-radius: 999px;
            box-shadow: 0 0 18px rgba(62,142,255,0.35);
            transition: all .3s ease;
            font-weight: 500;
        }
        .btn-login-nav:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(106,181,255,0.55);
            color: #fff;
        }
        .btn-login-nav i { margin-right: 4px; }

        /* ===== 文章 Hero ===== */
        .article-hero {
            position: relative;
            padding: calc(var(--nav-height) + 56px) 0 72px;
            overflow: hidden;
            background: var(--bg-deep);
        }
        .article-hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            transform: scale(1.05);
        }
        .article-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7,11,26,0.82) 0%, rgba(7,11,26,0.6) 45%, rgba(7,11,26,0.94) 100%);
        }
        .article-hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 860px;
            margin: 0 auto;
        }
        .article-hero h1 {
            font-size: clamp(1.8rem, 3vw, 2.6rem);
            font-weight: 700;
            line-height: 1.35;
            margin: 18px 0 14px;
            color: #fff;
            letter-spacing: .5px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.4);
        }
        .article-meta {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 14px;
            font-size: .875rem;
            color: var(--text-secondary);
            margin-top: 10px;
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255,255,255,0.06);
            border: 1px solid var(--border-muted);
            padding: .3rem .8rem;
            border-radius: 999px;
            backdrop-filter: blur(8px);
        }
        .article-meta i { color: var(--primary-bright); }

        /* ===== 面包屑 ===== */
        .breadcrumb-wrap {
            display: flex;
            justify-content: center;
            margin-bottom: 6px;
        }
        .breadcrumb {
            --bs-breadcrumb-divider: '>';
            background: rgba(255,255,255,0.05);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-muted);
            border-radius: 999px;
            padding: .45rem 1.2rem;
            display: inline-flex;
            font-size: .875rem;
        }
        .breadcrumb-item a { color: var(--text-secondary); }
        .breadcrumb-item a:hover { color: var(--primary-bright); }
        .breadcrumb-item.active { color: var(--text-muted); }
        .breadcrumb-item + .breadcrumb-item::before {
            content: '›';
            color: rgba(255,255,255,0.35);
        }

        /* ===== 正文内容 ===== */
        .article-content {
            padding: 72px 0 56px;
        }
        .article-wrap {
            max-width: 760px;
            margin: 0 auto;
            background: var(--bg-card);
            border: 1px solid var(--border-muted);
            border-radius: var(--radius-card);
            padding: clamp(1.5rem, 4vw, 3.2rem);
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }
        .article-wrap::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.28), transparent);
        }
        .prose {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-primary);
        }
        .prose h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin: 2.5rem 0 1rem;
            padding-left: 1rem;
            border-left: 4px solid var(--primary);
            letter-spacing: .3px;
        }
        .prose h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin: 2rem 0 .75rem;
            color: var(--primary-bright);
        }
        .prose p { margin-bottom: 1.5rem; }
        .prose ul, .prose ol {
            padding-left: 1.5rem;
            margin-bottom: 1.5rem;
        }
        .prose li { margin-bottom: .5rem; }
        .prose blockquote {
            border-left: 4px solid var(--accent);
            background: rgba(255,176,58,0.08);
            padding: 1rem 1.5rem;
            border-radius: 0 var(--radius-btn) var(--radius-btn) 0;
            margin: 1.5rem 0;
            color: var(--text-secondary);
        }
        .prose img {
            border-radius: var(--radius-img);
            max-width: 100%;
            height: auto;
            margin: 1.5rem 0;
            box-shadow: 0 8px 24px rgba(0,0,0,0.35);
        }
        .prose code {
            background: rgba(255,255,255,0.08);
            border-radius: 6px;
            padding: .15em .5em;
            font-size: .9em;
            color: var(--secondary);
        }
        .prose table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
        }
        .prose th, .prose td {
            border: 1px solid var(--border-muted);
            padding: .75rem 1rem;
            text-align: left;
        }
        .prose th {
            background: rgba(62,142,255,0.12);
            color: var(--primary-bright);
            font-weight: 600;
        }

        .article-empty {
            text-align: center;
            padding: 4rem 1.5rem;
        }
        .article-empty i {
            font-size: 3.5rem;
            color: var(--text-muted);
            display: block;
            margin-bottom: 1rem;
        }
        .article-empty h2 {
            font-size: 1.5rem;
            margin-bottom: .75rem;
        }
        .article-empty p {
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
        }

        /* ===== 按钮 ===== */
        .btn {
            border-radius: var(--radius-btn);
            padding: .6rem 1.5rem;
            font-weight: 500;
            border: 1px solid transparent;
            transition: all .3s ease;
            font-size: 1rem;
        }
        .btn-glow {
            background: linear-gradient(135deg, #3E8EFF, #2563EB);
            color: #fff;
            box-shadow: var(--shadow-glow);
            border: none;
            padding: .75rem 2rem;
        }
        .btn-glow:hover, .btn-glow:focus {
            background: linear-gradient(135deg, #4D9BFF, #2E6EF0);
            color: #fff;
            box-shadow: var(--shadow-glow-hover);
            transform: translateY(-2px);
        }
        .btn-outline-glass {
            background: rgba(255,255,255,0.04);
            color: var(--text-primary);
            border: 1px solid var(--border);
            backdrop-filter: blur(10px);
            padding: .75rem 1.8rem;
        }
        .btn-outline-glass:hover {
            background: rgba(62,142,255,0.15);
            border-color: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 文末导航 ===== */
        .article-page-nav {
            padding: 0 0 64px;
        }
        .article-page-nav .inner {
            max-width: 760px;
            margin: 0 auto;
            background: var(--bg-card);
            border: 1px solid var(--border-muted);
            border-radius: var(--radius-card);
            padding: 1.5rem 1.8rem;
            box-shadow: 0 8px 28px rgba(0,0,0,0.3);
        }
        .post-prev, .post-next {
            display: flex;
            align-items: center;
            gap: .5rem;
            padding: .85rem 1.1rem;
            background: rgba(255,255,255,0.03);
            border: 1px solid var(--border-muted);
            border-radius: var(--radius-btn);
            transition: all .3s ease;
            color: var(--text-secondary);
            font-size: .95rem;
        }
        .post-prev:hover, .post-next:hover {
            border-color: var(--primary);
            background: rgba(62,142,255,0.1);
            color: #fff;
        }
        .post-prev i, .post-next i { color: var(--primary); }

        /* ===== 相关推荐 ===== */
        .related-posts {
            padding: 0 0 var(--section-pad);
        }
        .related-posts .section-title {
            text-align: center;
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 2rem;
            position: relative;
            padding-bottom: 16px;
        }
        .related-posts .section-title::after {
            content: '';
            position: absolute;
            left: 50%;
            bottom: 0;
            transform: translateX(-50%);
            width: 56px;
            height: 3px;
            border-radius: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
        }
        .related-card {
            background: var(--bg-card);
            border: 1px solid var(--border-muted);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all .35s ease;
            height: 100%;
            display: block;
            color: var(--text-primary);
        }
        .related-card:hover {
            transform: translateY(-4px);
            border-color: var(--border);
            box-shadow: var(--shadow-card);
            color: var(--text-primary);
        }
        .related-card .img-wrap {
            overflow: hidden;
            position: relative;
            height: 180px;
        }
        .related-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .related-card:hover img { transform: scale(1.04); }
        .related-card .card-body {
            padding: 1.25rem 1.3rem;
        }
        .related-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: .5rem;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-date {
            font-size: .8rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 5px;
        }

        /* ===== CTA ===== */
        .article-cta {
            position: relative;
            padding: 80px 0;
            text-align: center;
            overflow: hidden;
        }
        .cta-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
        }
        .cta-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7,11,26,0.85), rgba(7,11,26,0.72), rgba(7,11,26,0.9));
        }
        .article-cta .container {
            position: relative;
            z-index: 2;
        }
        .article-cta h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            margin-bottom: 12px;
        }
        .article-cta p {
            color: var(--text-secondary);
            margin-bottom: 28px;
            font-size: 1rem;
        }
        .article-cta .btn-glow {
            font-size: 1.05rem;
            padding: .9rem 2.6rem;
            border-radius: 999px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border-muted);
            padding: 72px 0 0;
            position: relative;
        }
        .site-footer::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(62,142,255,0.5), rgba(53,208,194,0.5), transparent);
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand i {
            color: var(--primary);
            font-size: 1.4rem;
            filter: drop-shadow(0 0 10px rgba(62,142,255,0.5));
        }
        .footer-desc {
            color: var(--text-secondary);
            font-size: .9rem;
            line-height: 1.8;
            max-width: 360px;
        }
        .footer-heading {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-heading::after {
            content: '';
            position: absolute;
            left: 0; bottom: 0;
            width: 32px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 2px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: var(--text-secondary);
            font-size: .9rem;
            text-decoration: none;
            transition: all .3s;
        }
        .footer-links a:hover {
            color: var(--primary-bright);
            padding-left: 4px;
        }
        .footer-links li:last-child {
            color: var(--text-muted);
            font-size: .875rem;
        }
        .footer-bottom {
            margin-top: 48px;
            padding: 20px 0;
            border-top: 1px solid rgba(255,255,255,0.06);
            text-align: center;
        }
        .footer-bottom p {
            color: var(--text-muted);
            font-size: .825rem;
            margin: 0;
        }

        /* ===== 移动端底部 Tab ===== */
        .mobile-bottom-nav {
            display: none;
            position: fixed;
            left: 0;
            right: 0;
            bottom: 0;
            height: 60px;
            background: rgba(7, 11, 26, 0.96);
            backdrop-filter: blur(18px) saturate(150%);
            -webkit-backdrop-filter: blur(18px) saturate(150%);
            border-top: 1px solid rgba(255,255,255,0.09);
            z-index: 1050;
            box-shadow: 0 -8px 32px rgba(0,0,0,0.5);
        }
        .mb-tab {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 3px;
            color: var(--text-muted);
            font-size: .68rem;
            transition: color .3s;
            text-decoration: none;
        }
        .mb-tab i {
            font-size: 1.1rem;
            transition: color .3s, text-shadow .3s;
        }
        .mb-tab:hover,
        .mb-tab.active {
            color: var(--primary-bright);
        }
        .mb-tab.active i {
            text-shadow: 0 0 12px rgba(62,142,255,0.65);
        }
        .mb-tab.active {
            color: var(--primary);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            :root { --section-pad: 56px; }
            .site-nav { padding: 12px 0; }
            .site-nav.scrolled { padding: 8px 0; }
            .site-nav .nav-link { padding: .6rem .5rem !important; }
            .mobile-bottom-nav { display: flex; }
            .site-footer { padding-bottom: 10px; }
            .site-footer {
                padding-bottom: 30px;
            }
            body {
                padding-bottom: 0;
            }
            .article-hero { padding: 110px 0 52px; }
            .article-content { padding: 48px 0 40px; }
            .related-posts { padding-bottom: 48px; }
            .article-cta { padding: 56px 0; }
        }

        @media (max-width: 767.98px) {
            .article-hero h1 { font-size: 1.6rem; }
            .breadcrumb-wrap { justify-content: center; }
            .breadcrumb {
                padding: .4rem 1rem;
                max-width: 100%;
                overflow-x: auto;
                white-space: nowrap;
                flex-wrap: nowrap;
            }
            .article-wrap { padding: 1.5rem 1.25rem; }
            .prose { font-size: 1rem; }
            .prose h2 { font-size: 1.35rem; }
            .article-meta { gap: 8px; }
            .article-meta span { font-size: .8rem; padding: .25rem .65rem; }
            .post-prev, .post-next { font-size: .875rem; padding: .7rem .8rem; }
            .article-page-nav .inner { padding: 1.1rem 1rem; }
            .related-card .img-wrap { height: 160px; }
            .site-footer { padding: 48px 0 10px; }
            .footer-bottom { margin-top: 32px; }
            .article-cta h2 { font-size: 1.5rem; }
            .article-cta .btn-glow {
                font-size: .95rem;
                padding: .8rem 2rem;
            }
        }

        @media (max-width: 575.98px) {
            body { font-size: 16px; }
            .article-hero { padding: 100px 0 44px; }
            .article-hero h1 { font-size: 1.4rem; }
            .article-meta {
                flex-direction: row;
                justify-content: center;
            }
            .article-meta span { font-size: .75rem; }
            .related-posts .section-title {
                font-size: 1.4rem;
                margin-bottom: 1.5rem;
            }
            .related-card h3 { font-size: 1rem; }
            .article-cta { padding: 44px 0; }
            .article-cta p { font-size: .9rem; }
            .btn-glow { padding: .65rem 1.6rem; font-size: .95rem; }
            .btn-outline-glass { padding: .65rem 1.4rem; font-size: .9rem; }
        }