/* roulang page: index */
:root {
            --bg-deep: #070d0d;
            --bg-dark: #0d1515;
            --bg-card: #121c1c;
            --bg-card-hover: #172424;
            --text-main: #f0fdfa;
            --text-muted: #859a99;
            --primary-accent: #00e599;
            --primary-glow: rgba(0, 229, 153, 0.18);
            --border-dark: rgba(255, 255, 255, 0.08);
            --border-card: #1d2c2c;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            background-color: var(--bg-deep);
            color: var(--text-main);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            line-height: 1.6;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.25s ease;
        }
        a:hover {
            color: var(--primary-accent);
        }

        /* 顶部导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(7, 13, 13, 0.88);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-dark);
            padding: 14px 0;
        }
        .navbar-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .navbar-brand .logo-icon {
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, #00e599, #0088cc);
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #000;
            font-size: 1rem;
        }
        .nav-link {
            color: #a8bcbc !important;
            font-size: 0.92rem;
            padding: 6px 14px !important;
            font-weight: 500;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary-accent) !important;
        }
        .header-search {
            background: #131d1d;
            border: 1px solid #233434;
            border-radius: 20px;
            padding: 6px 14px;
            color: #fff;
            font-size: 0.85rem;
            display: flex;
            align-items: center;
            gap: 8px;
            width: 170px;
        }
        .header-search input {
            background: transparent;
            border: none;
            color: #fff;
            outline: none;
            width: 100%;
            font-size: 0.82rem;
        }

        /* 首屏 Hero */
        .hero-section {
            position: relative;
            padding: 90px 0 70px;
            text-align: center;
            background: radial-gradient(circle at 50% 20%, rgba(0, 229, 153, 0.16) 0%, rgba(7, 13, 13, 0.95) 70%),
                        url('/assets/images/dc365372959c1e03.webp') center/cover no-repeat;
            background-blend-mode: overlay;
        }
        .hero-title {
            font-size: 3rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 20px;
            color: #ffffff;
            text-shadow: 0 4px 20px rgba(0,0,0,0.8);
        }
        .hero-title span {
            color: var(--primary-accent);
        }
        .hero-subtitle {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 680px;
            margin: 0 auto 30px;
            line-height: 1.7;
        }
        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
        }
        .btn-brand {
            background-color: var(--primary-accent);
            color: #051a14;
            font-weight: 700;
            padding: 10px 28px;
            border-radius: 24px;
            border: none;
            box-shadow: 0 0 15px var(--primary-glow);
        }
        .btn-brand:hover {
            background-color: #00c784;
            color: #03110d;
        }
        .btn-outline-brand {
            background-color: rgba(255,255,255,0.06);
            color: #ffffff;
            border: 1px solid rgba(255,255,255,0.2);
            padding: 10px 28px;
            border-radius: 24px;
            font-weight: 600;
        }
        .btn-outline-brand:hover {
            background-color: rgba(255,255,255,0.12);
            color: #fff;
            border-color: #fff;
        }

        /* 核心优势板块 */
        .section-header {
            text-align: center;
            margin-bottom: 45px;
        }
        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 8px;
        }
        .section-sub {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .advantage-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: 18px;
            padding: 24px 20px;
            text-align: center;
            height: 100%;
            transition: all 0.3s cubic-bezier(0.2, 0, 0, 1);
        }
        .advantage-card:hover {
            background-color: var(--bg-card-hover);
            transform: translateY(-4px);
            border-color: rgba(0, 229, 153, 0.4);
            box-shadow: 0 10px 25px rgba(0,0,0,0.4);
        }
        .advantage-icon {
            width: 48px;
            height: 48px;
            margin: 0 auto 16px;
            border-radius: 14px;
            background: rgba(0, 229, 153, 0.1);
            color: var(--primary-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
        }
        .advantage-card h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
        }
        .advantage-card p {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.5;
        }

        /* 精选视频/精选片单 (六格彩底卡片) */
        .color-card-item {
            background-color: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: 16px;
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: transform 0.3s;
        }
        .color-card-item:hover {
            transform: translateY(-5px);
            border-color: rgba(0, 229, 153, 0.5);
        }
        .color-thumb {
            height: 160px;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            background-size: cover;
            background-position: center;
        }
        .color-thumb::after {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(0, 0, 0, 0.4);
        }
        .badge-tag-top {
            position: absolute;
            top: 10px;
            left: 10px;
            z-index: 2;
            font-size: 0.72rem;
            padding: 3px 8px;
            border-radius: 6px;
            background: rgba(0,0,0,0.5);
            backdrop-filter: blur(4px);
            color: #fff;
        }
        .badge-duration {
            position: absolute;
            bottom: 10px;
            right: 10px;
            z-index: 2;
            font-size: 0.72rem;
            padding: 2px 6px;
            border-radius: 4px;
            background: rgba(0,0,0,0.7);
            color: #fff;
        }
        .play-btn-circle {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(255,255,255,0.85);
            color: #111;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            position: relative;
            z-index: 2;
            box-shadow: 0 4px 12px rgba(0,0,0,0.3);
            transition: transform 0.2s;
        }
        .color-card-item:hover .play-btn-circle {
            transform: scale(1.1);
            background: var(--primary-accent);
            color: #051a14;
        }
        .color-card-body {
            padding: 16px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .color-card-body h5 {
            font-size: 0.98rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .color-card-body p {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.45;
        }
        .card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.75rem;
            color: #6d8281;
        }
        .card-meta .meta-stats {
            display: flex;
            gap: 12px;
        }

        /* 网站简介 (中间文案框) */
        .intro-box {
            background-color: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: 20px;
            padding: 35px 30px;
            text-align: center;
        }
        .intro-tags {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 24px;
        }
        .intro-tag {
            background: #192727;
            border: 1px solid #273e3e;
            color: #a1b8b7;
            font-size: 0.78rem;
            padding: 4px 14px;
            border-radius: 20px;
        }
        .intro-text {
            color: #9ab0af;
            font-size: 0.88rem;
            line-height: 1.85;
            max-width: 900px;
            margin: 0 auto;
        }

        /* 相关资讯 (CMS 卡片网格) */
        .news-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: 16px;
            padding: 20px;
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: all 0.25s ease;
        }
        .news-card:hover {
            border-color: rgba(0, 229, 153, 0.4);
            background-color: var(--bg-card-hover);
            transform: translateY(-3px);
        }
        .news-date {
            font-size: 0.75rem;
            color: #637776;
            margin-bottom: 8px;
        }
        .news-title {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 10px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-desc {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 15px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.5;
        }
        .news-readmore {
            font-size: 0.78rem;
            color: var(--primary-accent);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* 常见问题 (FAQ 列表) */
        .faq-item {
            background-color: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: 12px;
            margin-bottom: 12px;
            overflow: hidden;
        }
        .faq-question {
            padding: 16px 20px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.95rem;
            font-weight: 500;
            color: #e2eceb;
            background: transparent;
            width: 100%;
            border: none;
            text-align: left;
        }
        .faq-question i.faq-icon-left {
            color: var(--primary-accent);
            margin-right: 10px;
            font-size: 0.85rem;
        }
        .faq-answer {
            padding: 0 20px 16px;
            font-size: 0.85rem;
            color: #8c9f9e;
            line-height: 1.6;
        }

        /* 使用指南步骤 (四格) */
        .step-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: 16px;
            padding: 24px 16px;
            text-align: center;
            height: 100%;
        }
        .step-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: #182827;
            color: var(--primary-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 1.1rem;
        }
        .step-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 6px;
        }
        .step-text {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.4;
        }

        /* 用户评价 */
        .review-panel {
            background-color: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: 20px;
            padding: 28px;
        }
        .comment-form input, .comment-form textarea {
            background-color: #0b1313;
            border: 1px solid #1c2b2b;
            color: #fff;
            border-radius: 8px;
            font-size: 0.85rem;
            padding: 10px 14px;
            width: 100%;
            margin-bottom: 12px;
        }
        .comment-form input:focus, .comment-form textarea:focus {
            outline: none;
            border-color: var(--primary-accent);
        }
        .comment-item {
            padding: 18px 0;
            border-bottom: 1px solid #182525;
        }
        .comment-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            font-size: 0.8rem;
            margin-bottom: 6px;
        }
        .comment-user {
            color: #e2eceb;
            font-weight: 600;
        }
        .comment-time {
            color: #5c706f;
        }
        .comment-body {
            font-size: 0.85rem;
            color: #92a7a6;
            line-height: 1.5;
            margin-bottom: 8px;
        }
        .comment-actions {
            display: flex;
            gap: 16px;
            font-size: 0.75rem;
            color: #637776;
        }

        /* 页脚 */
        .site-footer {
            background: #050909;
            border-top: 1px solid #152020;
            padding: 40px 0 30px;
            text-align: center;
            font-size: 0.78rem;
            color: #5c706f;
            line-height: 1.8;
        }
        .site-footer a {
            color: #7d9695;
            margin: 0 8px;
        }
        .site-footer a:hover {
            color: var(--primary-accent);
        }

        /* 响应式断点 */
        @media (max-width: 991px) {
            .hero-title {
                font-size: 2.2rem;
            }
            .header-search {
                display: none;
            }
        }
        @media (max-width: 767px) {
            .hero-title {
                font-size: 1.85rem;
            }
            .hero-section {
                padding: 60px 0 45px;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .review-panel {
                padding: 18px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-deep: #070d0d;
            --bg-dark: #0d1515;
            --bg-card: #121c1c;
            --bg-card-hover: #172424;
            --text-main: #f0fdfa;
            --text-muted: #859a99;
            --primary-accent: #00e599;
            --primary-glow: rgba(0, 229, 153, 0.18);
            --border-dark: rgba(255, 255, 255, 0.08);
            --border-card: #1d2c2c;
        }
        body {
            background-color: var(--bg-deep);
            color: var(--text-main);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            line-height: 1.6;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.25s ease;
        }
        a:hover {
            color: var(--primary-accent);
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(7, 13, 13, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-dark);
            padding: 14px 0;
        }
        .navbar-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .navbar-brand .logo-icon {
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, #00e599, #0088cc);
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #000;
            font-size: 1rem;
        }
        .nav-link {
            color: #a8bcbc !important;
            font-size: 0.92rem;
            padding: 6px 14px !important;
            font-weight: 500;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary-accent) !important;
        }
        .header-search {
            background: #131d1d;
            border: 1px solid #233434;
            border-radius: 20px;
            padding: 6px 14px;
            color: #fff;
            font-size: 0.85rem;
            display: flex;
            align-items: center;
            gap: 8px;
            width: 170px;
        }
        .header-search input {
            background: transparent;
            border: none;
            color: #fff;
            outline: none;
            width: 100%;
            font-size: 0.82rem;
        }
        .hero-section {
            position: relative;
            padding: 90px 0 70px;
            text-align: center;
            background: radial-gradient(circle at 50% 20%, rgba(0, 229, 153, 0.16) 0%, rgba(7, 13, 13, 0.95) 70%),
                        url('/assets/images/dc365372959c1e03.webp') center/cover no-repeat;
            background-blend-mode: overlay;
        }
        .hero-title {
            font-size: 2.85rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 20px;
            color: #ffffff;
            text-shadow: 0 4px 20px rgba(0,0,0,0.8);
        }
        .hero-title span {
            color: var(--primary-accent);
        }
        .hero-subtitle {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 720px;
            margin: 0 auto 30px;
            line-height: 1.8;
        }
        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
        }
        .btn-brand {
            background-color: var(--primary-accent);
            color: #051a14;
            font-weight: 700;
            padding: 10px 28px;
            border-radius: 24px;
            border: none;
            box-shadow: 0 0 15px var(--primary-glow);
        }
        .btn-brand:hover {
            background-color: #00c784;
            color: #03110d;
        }
        .btn-outline-brand {
            background-color: rgba(255,255,255,0.06);
            color: #ffffff;
            border: 1px solid rgba(255,255,255,0.2);
            padding: 10px 28px;
            border-radius: 24px;
            font-weight: 600;
        }
        .btn-outline-brand:hover {
            background-color: rgba(255,255,255,0.12);
            color: #fff;
            border-color: #fff;
        }
        .section-header {
            text-align: center;
            margin-bottom: 45px;
        }
        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 8px;
        }
        .section-sub {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .feature-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: 18px;
            padding: 26px 22px;
            text-align: left;
            height: 100%;
            transition: all 0.3s cubic-bezier(0.2, 0, 0, 1);
        }
        .feature-card:hover {
            background-color: var(--bg-card-hover);
            transform: translateY(-4px);
            border-color: rgba(0, 229, 153, 0.4);
            box-shadow: 0 10px 25px rgba(0,0,0,0.4);
        }
        .feature-icon {
            width: 48px;
            height: 48px;
            margin-bottom: 18px;
            border-radius: 14px;
            background: rgba(0, 229, 153, 0.1);
            color: var(--primary-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
        }
        .feature-card h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 0.84rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }
        .schedule-grid-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: 16px;
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: transform 0.3s;
        }
        .schedule-grid-card:hover {
            transform: translateY(-5px);
            border-color: rgba(0, 229, 153, 0.5);
        }
        .schedule-thumb {
            height: 170px;
            position: relative;
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: flex-end;
            padding: 14px;
        }
        .schedule-thumb::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(0,0,0,0.1) 0%, rgba(7,13,13,0.85) 100%);
        }
        .schedule-tag {
            position: relative;
            z-index: 2;
            background: rgba(0, 229, 153, 0.2);
            color: var(--primary-accent);
            border: 1px solid rgba(0, 229, 153, 0.4);
            font-size: 0.72rem;
            padding: 3px 10px;
            border-radius: 12px;
            font-weight: 600;
        }
        .schedule-time-badge {
            position: absolute;
            top: 12px;
            right: 12px;
            z-index: 2;
            background: rgba(0,0,0,0.65);
            backdrop-filter: blur(4px);
            color: #fff;
            font-size: 0.75rem;
            padding: 4px 10px;
            border-radius: 8px;
            border: 1px solid var(--border-dark);
        }
        .schedule-body {
            padding: 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .schedule-body h5 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: #fff;
        }
        .schedule-body p {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 15px;
            flex: 1;
            line-height: 1.5;
        }
        .schedule-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.78rem;
            color: #728786;
            border-top: 1px solid rgba(255,255,255,0.05);
            padding-top: 12px;
        }
        .spec-strip {
            background-color: var(--bg-dark);
            border-top: 1px solid var(--border-dark);
            border-bottom: 1px solid var(--border-dark);
            padding: 40px 0;
        }
        .spec-item {
            text-align: center;
            padding: 10px;
        }
        .spec-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary-accent);
            line-height: 1.1;
            margin-bottom: 6px;
        }
        .spec-label {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .news-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: 14px;
            padding: 18px;
            height: 100%;
            transition: all 0.25s ease;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .news-card:hover {
            border-color: rgba(0, 229, 153, 0.4);
            transform: translateY(-3px);
            background: var(--bg-card-hover);
        }
        .news-date {
            font-size: 0.75rem;
            color: #5d7574;
            margin-bottom: 8px;
        }
        .news-title {
            font-size: 0.96rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 10px;
            line-height: 1.5;
        }
        .news-snippet {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .news-link {
            font-size: 0.8rem;
            color: var(--primary-accent);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .accordion-item {
            background-color: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: 12px !important;
            margin-bottom: 14px;
            overflow: hidden;
        }
        .accordion-button {
            background-color: var(--bg-card);
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            box-shadow: none !important;
            padding: 18px 20px;
        }
        .accordion-button:not(.collapsed) {
            background-color: #162424;
            color: var(--primary-accent);
        }
        .accordion-button::after {
            filter: invert(1);
        }
        .accordion-body {
            background-color: #0e1717;
            color: var(--text-muted);
            font-size: 0.85rem;
            line-height: 1.7;
            padding: 20px;
            border-top: 1px solid var(--border-card);
        }
        .site-footer {
            background-color: #040808;
            border-top: 1px solid var(--border-dark);
            padding: 50px 0 35px;
            text-align: center;
            font-size: 0.88rem;
        }
        .site-footer a {
            color: var(--text-muted);
            margin: 0 8px;
        }
        .site-footer a:hover {
            color: var(--primary-accent);
        }
        @media (max-width: 991px) {
            .hero-title {
                font-size: 2.2rem;
            }
            .header-search {
                display: none;
            }
        }
        @media (max-width: 767px) {
            .hero-section {
                padding: 60px 0 45px;
            }
            .hero-title {
                font-size: 1.85rem;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }
            .btn-brand, .btn-outline-brand {
                width: 100%;
                max-width: 280px;
            }
            .spec-strip .col-6 {
                margin-bottom: 20px;
            }
        }

/* roulang page: article */
:root {
            --bg-deep: #070d0d;
            --bg-dark: #0d1515;
            --bg-card: #121c1c;
            --bg-card-hover: #172424;
            --text-main: #f0fdfa;
            --text-muted: #859a99;
            --primary-accent: #00e599;
            --primary-glow: rgba(0, 229, 153, 0.18);
            --border-dark: rgba(255, 255, 255, 0.08);
            --border-card: #1d2c2c;
        }
        body {
            background-color: var(--bg-deep);
            color: var(--text-main);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            line-height: 1.6;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.25s ease;
        }
        a:hover {
            color: var(--primary-accent);
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(7, 13, 13, 0.88);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-dark);
            padding: 14px 0;
        }
        .navbar-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .navbar-brand .logo-icon {
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, #00e599, #0088cc);
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #000;
            font-size: 1rem;
        }
        .nav-link {
            color: #a8bcbc !important;
            font-size: 0.92rem;
            padding: 6px 14px !important;
            font-weight: 500;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary-accent) !important;
        }
        .header-search {
            background: #131d1d;
            border: 1px solid #233434;
            border-radius: 20px;
            padding: 6px 14px;
            color: #fff;
            font-size: 0.85rem;
            display: flex;
            align-items: center;
            gap: 8px;
            width: 170px;
        }
        .header-search input {
            background: transparent;
            border: none;
            color: #fff;
            outline: none;
            width: 100%;
            font-size: 0.82rem;
        }
        .article-banner {
            padding: 50px 0 35px;
            background: radial-gradient(circle at 50% 20%, rgba(0, 229, 153, 0.12) 0%, rgba(7, 13, 13, 0.98) 75%),
                        url('/assets/images/dc365372959c1e03.webp') center/cover no-repeat;
            background-blend-mode: overlay;
            border-bottom: 1px solid var(--border-card);
        }
        .breadcrumb-box {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .breadcrumb-box a {
            color: var(--text-muted);
        }
        .breadcrumb-box a:hover {
            color: var(--primary-accent);
        }
        .article-main-title {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.35;
            color: #ffffff;
            margin-bottom: 18px;
        }
        .article-meta-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            color: var(--text-muted);
            font-size: 0.85rem;
            align-items: center;
        }
        .article-meta-bar .badge-cat {
            background: rgba(0, 229, 153, 0.15);
            color: var(--primary-accent);
            border: 1px solid rgba(0, 229, 153, 0.3);
            border-radius: 20px;
            padding: 4px 12px;
            font-weight: 500;
        }
        .article-layout {
            padding: 45px 0 80px;
        }
        .article-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: 20px;
            padding: 38px 40px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.3);
        }
        .article-body {
            font-size: 1.05rem;
            line-height: 1.85;
            color: #d1dede;
        }
        .article-body p {
            margin-bottom: 1.5rem;
        }
        .article-body h2 {
            font-size: 1.45rem;
            font-weight: 700;
            color: #ffffff;
            margin-top: 2.2rem;
            margin-bottom: 1rem;
            padding-left: 12px;
            border-left: 4px solid var(--primary-accent);
        }
        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: #e6fcf5;
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
        }
        .article-body img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
            margin: 20px 0;
            border: 1px solid var(--border-card);
        }
        .article-body blockquote {
            background: rgba(0, 229, 153, 0.05);
            border-left: 4px solid var(--primary-accent);
            padding: 16px 20px;
            border-radius: 0 12px 12px 0;
            color: #a4bebe;
            font-style: italic;
            margin: 24px 0;
        }
        .sidebar-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: 18px;
            padding: 24px;
            margin-bottom: 24px;
        }
        .sidebar-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px solid var(--border-card);
            padding-bottom: 12px;
        }
        .sidebar-title i {
            color: var(--primary-accent);
        }
        .side-post-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .side-post-item {
            padding: 12px 0;
            border-bottom: 1px dashed rgba(255, 255, 255, 0.06);
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .side-post-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .side-post-title {
            font-size: 0.92rem;
            line-height: 1.45;
            color: #d1dede;
        }
        .side-post-title:hover {
            color: var(--primary-accent);
        }
        .side-post-date {
            font-size: 0.75rem;
            color: var(--text-muted);
        }
        .article-footer-cta {
            background: linear-gradient(135deg, rgba(0, 229, 153, 0.1) 0%, rgba(13, 21, 21, 0.9) 100%);
            border: 1px solid rgba(0, 229, 153, 0.3);
            border-radius: 16px;
            padding: 24px;
            text-align: center;
            margin-top: 40px;
        }
        .article-footer-cta h4 {
            color: #ffffff;
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .article-footer-cta p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 18px;
        }
        .btn-brand {
            background-color: var(--primary-accent);
            color: #051a14;
            font-weight: 700;
            padding: 8px 24px;
            border-radius: 20px;
            border: none;
            display: inline-block;
        }
        .btn-brand:hover {
            background-color: #00c784;
            color: #03110d;
        }
        .site-footer {
            background: #040808;
            border-top: 1px solid var(--border-dark);
            padding: 40px 0 30px;
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .site-footer a {
            color: var(--text-muted);
            margin: 0 8px;
        }
        .site-footer a:hover {
            color: var(--primary-accent);
        }
        @media (max-width: 991px) {
            .article-main-title {
                font-size: 1.8rem;
            }
            .article-card {
                padding: 24px 20px;
            }
            .sidebar-area {
                margin-top: 30px;
            }
        }
        @media (max-width: 576px) {
            .article-main-title {
                font-size: 1.45rem;
            }
            .article-meta-bar {
                gap: 10px;
            }
            .header-search {
                display: none;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}