/* roulang page: index */
/* ===== 1. Design Tokens ===== */
    :root {
        --primary: #1E4D3A;
        --primary-dark: #153A2C;
        --surface-dark: #142A22;
        --accent: #E8871E;
        --accent-hover: #D1740C;
        --bg: #F6F3EE;
        --surface: #FFFFFF;
        --text: #23332C;
        --text-muted: #6B7C72;
        --border: #E3DED5;
        --line: #D6CFC4;
        --radius-lg: 20px;
        --radius-md: 12px;
        --radius-pill: 999px;
        --shadow-sm: 0 2px 8px rgba(30, 77, 58, 0.06);
        --shadow-hover: 0 8px 24px rgba(30, 77, 58, 0.10);
        --shadow-cover: 0 12px 32px rgba(0, 0, 0, 0.18);
        --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        --font-mono: "DIN Alternate", "Roboto Mono", "SFMono-Regular", monospace;
    }

    /* ===== 2. Reset & Base ===== */
    *,
    *::before,
    *::after {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        font-family: var(--font-sans);
        background-color: var(--bg);
        color: var(--text);
        font-size: 16px;
        line-height: 1.8;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        overflow-x: hidden;
    }
    a {
        text-decoration: none;
        color: inherit;
        transition: color .2s ease;
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    button,
    input {
        font-family: inherit;
        font-size: inherit;
        border: none;
        outline: none;
        background: none;
    }
    ul,
    ol {
        list-style: none;
    }
    section[id] {
        scroll-margin-top: 110px;
    }

    /* ===== 3. Container & Utilities ===== */
    .container {
        max-width: 1240px;
        padding-left: 20px;
        padding-right: 20px;
    }
    .section-pad {
        padding: 72px 0;
    }
    .section-head {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 12px;
        margin-bottom: 40px;
    }
    .section-head h2 {
        font-size: 28px;
        font-weight: 700;
        line-height: 1.3;
        color: var(--text);
        position: relative;
        padding-left: 16px;
    }
    .section-head h2::before {
        content: '';
        position: absolute;
        left: 0;
        top: 50%;
        transform: translateY(-50%);
        width: 4px;
        height: 24px;
        border-radius: 4px;
        background: var(--accent);
    }
    .section-note {
        font-size: 13px;
        color: var(--text-muted);
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: var(--radius-pill);
        padding: 4px 14px;
    }
    .section-more {
        font-size: 14px;
        font-weight: 600;
        color: var(--primary);
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: var(--radius-pill);
        padding: 8px 18px;
        transition: var(--transition);
    }
    .section-more:hover {
        background: rgba(30, 77, 58, .06);
        border-color: rgba(30, 77, 58, .3);
        transform: translateY(-1px);
    }

    @media (max-width: 767px) {
        .section-pad {
            padding: 48px 0;
        }
        .section-head {
            margin-bottom: 28px;
        }
    }

    /* ===== 4. Buttons ===== */
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        font-weight: 600;
        border-radius: var(--radius-pill);
        padding: 12px 28px;
        font-size: 15px;
        line-height: 1.4;
        border: 1px solid transparent;
        transition: all .25s ease;
        cursor: pointer;
    }
    .btn:hover {
        transform: translateY(-2px);
    }
    .btn:focus-visible {
        outline: none;
        box-shadow: 0 0 0 3px rgba(30, 77, 58, .25);
    }
    .btn-primary {
        background: var(--primary);
        color: #fff;
        box-shadow: 0 4px 14px rgba(30, 77, 58, .2);
    }
    .btn-primary:hover {
        background: var(--primary-dark);
        color: #fff;
        box-shadow: 0 8px 22px rgba(30, 77, 58, .28);
    }
    .btn-outline {
        background: transparent;
        border-color: var(--primary);
        color: var(--primary);
    }
    .btn-outline:hover {
        background: rgba(30, 77, 58, .06);
        color: var(--primary-dark);
    }
    .btn-accent {
        background: var(--accent);
        color: var(--primary-dark);
        box-shadow: 0 4px 14px rgba(232, 135, 30, .25);
    }
    .btn-accent:hover {
        background: var(--accent-hover);
        color: var(--primary-dark);
        box-shadow: 0 8px 20px rgba(232, 135, 30, .3);
        transform: translateY(-2px);
    }
    .btn-lg {
        padding: 14px 36px;
        font-size: 16px;
    }
    .btn-sm {
        padding: 8px 20px;
        font-size: 14px;
    }

    /* ===== 5. Navbar ===== */
    .site-nav {
        position: sticky;
        top: 16px;
        z-index: 1030;
        padding: 0;
        margin-bottom: -60px;
    }
    .site-nav .container {
        max-width: 1240px;
        padding-left: 20px;
        padding-right: 20px;
    }
    .nav-capsule {
        display: flex;
        align-items: center;
        justify-content: space-between;
        background: rgba(246, 243, 238, .88);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border: 1px solid var(--border);
        border-radius: var(--radius-pill);
        padding: 8px 12px 8px 24px;
        box-shadow: 0 4px 20px rgba(30, 77, 58, .07);
    }
    .nav-logo {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        font-size: 18px;
        font-weight: 700;
        color: var(--primary);
        letter-spacing: .5px;
        white-space: nowrap;
    }
    .nav-logo .logo-dot {
        width: 10px;
        height: 10px;
        border-radius: 50%;
        background: var(--accent);
        box-shadow: 0 0 0 4px rgba(232, 135, 30, .2);
        flex-shrink: 0;
    }
    .nav-links {
        display: flex;
        align-items: center;
        gap: 4px;
        margin-left: auto;
        margin-right: 8px;
    }
    .nav-links .nav-item {
        list-style: none;
    }
    .nav-links .nav-link {
        display: block;
        padding: 8px 18px;
        font-size: 15px;
        font-weight: 500;
        color: var(--text);
        border-radius: var(--radius-pill);
        transition: background .2s, color .2s;
        white-space: nowrap;
    }
    .nav-links .nav-link:hover {
        background: rgba(30, 77, 58, .08);
        color: var(--primary);
    }
    .nav-links .nav-link.active {
        color: var(--primary);
        font-weight: 600;
        background: rgba(30, 77, 58, .08);
    }
    .navbar-toggler {
        display: none;
        width: 42px;
        height: 42px;
        border-radius: 50%;
        background: var(--surface);
        border: 1px solid var(--border);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 5px;
        cursor: pointer;
    }
    .navbar-toggler span {
        display: block;
        width: 18px;
        height: 2px;
        background: var(--primary);
        border-radius: 2px;
        transition: all .3s;
    }
    .navbar-toggler[aria-expanded="true"] span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    .navbar-toggler[aria-expanded="true"] span:nth-child(2) {
        opacity: 0;
    }
    .navbar-toggler[aria-expanded="true"] span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
    .collapse-menu {
        display: none;
    }

    /* Nav CTA */
    .nav-cta-btn {
        margin-left: 4px;
    }

    @media (max-width: 991px) {
        .nav-capsule {
            flex-wrap: wrap;
            padding: 10px 12px 10px 20px;
            border-radius: 24px;
        }
        .nav-logo {
            font-size: 16px;
        }
        .navbar-toggler {
            display: flex;
            margin-left: 4px;
        }
        .nav-links {
            display: none;
        }
        .collapse-menu {
            display: none;
            width: 100%;
            flex-basis: 100%;
            padding-top: 12px;
            margin-top: 10px;
            border-top: 1px solid var(--border);
        }
        .collapse-menu.show {
            display: block;
        }
        .collapse-menu .nav-links-mobile {
            display: flex;
            flex-direction: column;
            gap: 2px;
            padding: 0 0 12px;
        }
        .collapse-menu .nav-link {
            display: block;
            padding: 12px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            border-radius: var(--radius-md);
            transition: background .2s, color .2s;
        }
        .collapse-menu .nav-link:hover,
        .collapse-menu .nav-link.active {
            background: rgba(30, 77, 58, .08);
            color: var(--primary);
        }
        .collapse-menu .nav-cta-mobile {
            padding: 4px 4px 8px;
        }
        .collapse-menu .nav-cta-mobile .btn {
            width: 100%;
        }
        .nav-cta-desktop {
            display: none !important;
        }
    }

    @media (min-width: 992px) {
        .collapse-menu {
            display: none !important;
        }
    }

    /* ===== 6. Hero Section ===== */
    .hero-section {
        position: relative;
        padding: 120px 0 80px;
        background-image: linear-gradient(to right, rgba(246, 243, 238, 1) 0%, rgba(246, 243, 238, .88) 100%), url('/assets/images/backpic/back-1.png');
        background-size: cover;
        background-position: center;
        overflow: hidden;
    }
    .hero-cover-wrap {
        position: relative;
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-cover);
        overflow: hidden;
    }
    .hero-cover {
        width: 100%;
        aspect-ratio: 16 / 10;
        object-fit: cover;
        border-radius: var(--radius-lg);
    }
    .live-badge {
        position: absolute;
        top: 16px;
        left: 16px;
        z-index: 2;
        background: var(--accent);
        color: var(--primary-dark);
        font-size: 12px;
        font-weight: 700;
        letter-spacing: .5px;
        padding: 4px 14px;
        border-radius: var(--radius-pill);
        box-shadow: 0 2px 10px rgba(232, 135, 30, .35);
    }
    .hero-content {
        padding-left: 24px;
    }
    .hero-content h1 {
        font-size: clamp(32px, 4vw, 44px);
        font-weight: 700;
        line-height: 1.3;
        color: var(--text);
        margin-bottom: 16px;
        letter-spacing: .5px;
    }
    .hero-subtitle {
        font-size: 16px;
        color: var(--text-muted);
        line-height: 1.8;
        margin-bottom: 28px;
        max-width: 520px;
    }
    .countdown-box {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        background: var(--surface-dark);
        border-radius: 18px;
        padding: 18px 28px;
        box-shadow: var(--shadow-cover);
        margin-bottom: 28px;
    }
    .countdown-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        min-width: 72px;
    }
    .countdown-value {
        font-family: var(--font-mono);
        font-size: clamp(2.2rem, 4vw, 3.2rem);
        font-weight: 700;
        color: #fff;
        line-height: 1.2;
        font-variant-numeric: tabular-nums;
    }
    .countdown-unit {
        font-size: 12px;
        color: rgba(255, 255, 255, .6);
        letter-spacing: 3px;
        margin-top: 2px;
    }
    .countdown-colon {
        font-family: var(--font-mono);
        font-size: 2rem;
        color: rgba(255, 255, 255, .35);
        margin-bottom: 16px;
        font-weight: 300;
    }
    .live-now {
        display: inline-flex;
        align-items: center;
        gap: 12px;
        background: var(--surface-dark);
        color: #fff;
        font-size: 18px;
        font-weight: 600;
        padding: 18px 32px;
        border-radius: 18px;
        box-shadow: var(--shadow-cover);
        margin-bottom: 28px;
    }
    .live-pulse {
        width: 10px;
        height: 10px;
        border-radius: 50%;
        background: #F03E3E;
        animation: pulse 1.2s ease-in-out infinite;
        flex-shrink: 0;
    }
    @keyframes pulse {
        0%,
        100% {
            box-shadow: 0 0 0 0 rgba(240, 62, 62, .5);
        }
        50% {
            box-shadow: 0 0 0 8px rgba(240, 62, 62, 0);
        }
    }
    .hero-actions {
        display: flex;
        flex-wrap: wrap;
        gap: 14px;
        margin-bottom: 32px;
    }
    .hero-trust {
        display: flex;
        flex-wrap: wrap;
        gap: 20px;
        font-size: 13px;
        color: var(--text-muted);
    }
    .hero-trust span {
        display: inline-flex;
        align-items: center;
        gap: 8px;
    }
    .hero-trust i {
        color: var(--primary);
        font-size: 15px;
    }

    @media (max-width: 991px) {
        .hero-section {
            padding: 130px 0 60px;
        }
        .hero-content {
            padding-left: 0;
            margin-top: 24px;
        }
        .countdown-box {
            padding: 14px 20px;
        }
        .countdown-item {
            min-width: 60px;
        }
    }

    @media (max-width: 575px) {
        .hero-section {
            padding: 120px 0 48px;
        }
        .hero-actions .btn {
            width: 100%;
        }
        .countdown-box {
            width: 100%;
            justify-content: center;
        }
        .hero-trust {
            justify-content: flex-start;
            gap: 14px;
        }
    }

    /* ===== 7. Highlights Timeline ===== */
    .highlights-section {
        background: var(--surface);
        border-bottom: 1px solid var(--border);
    }
    .timeline-list {
        position: relative;
        padding: 0;
        margin: 0;
        border-left: 1px dashed var(--line);
        padding-left: 32px;
        display: flex;
        flex-direction: column;
        gap: 28px;
        max-width: 820px;
    }
    .timeline-item {
        position: relative;
        display: flex;
        align-items: flex-start;
        gap: 20px;
        padding: 20px 20px 20px 0;
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-sm);
        transition: transform .25s ease, box-shadow .25s ease;
        flex-wrap: wrap;
    }
    .timeline-item:hover {
        transform: translateX(4px);
        box-shadow: var(--shadow-hover);
    }
    .timeline-num {
        width: 28px;
        height: 28px;
        border-radius: 50%;
        background: var(--accent);
        color: var(--primary-dark);
        font-size: 14px;
        font-weight: 700;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
        margin-top: 2px;
        transition: background .2s;
    }
    .timeline-item:hover .timeline-num {
        background: var(--accent-hover);
    }
    .timeline-content {
        flex: 1;
        min-width: 0;
    }
    .timeline-content h3 {
        font-size: 18px;
        font-weight: 600;
        line-height: 1.4;
        color: var(--text);
        margin-bottom: 6px;
    }
    .timeline-content p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.7;
    }
    .timeline-cta {
        font-size: 14px;
        font-weight: 600;
        color: var(--primary);
        display: inline-flex;
        align-items: center;
        gap: 6px;
        white-space: nowrap;
        align-self: center;
        padding: 6px 12px;
        border-radius: var(--radius-pill);
        transition: background .2s, transform .2s;
    }
    .timeline-cta:hover {
        background: rgba(30, 77, 58, .08);
        transform: translateX(4px);
    }

    @media (max-width: 575px) {
        .timeline-list {
            padding-left: 20px;
        }
        .timeline-item {
            padding: 16px;
            gap: 12px;
        }
        .timeline-cta {
            width: 100%;
            justify-content: center;
            padding: 10px;
            background: rgba(30, 77, 58, .05);
        }
        .timeline-cta:hover {
            transform: none;
        }
    }

    /* ===== 8. Subscribe Section ===== */
    .subscribe-section {
        padding: 72px 0;
    }
    .subscribe-card {
        background: linear-gradient(135deg, #1E4D3A 0%, #153A2C 100%);
        border-radius: 24px;
        padding: 40px 32px;
        color: #fff;
        position: relative;
        overflow: hidden;
        box-shadow: 0 16px 40px rgba(21, 58, 44, .3);
    }
    .subscribe-card::before {
        content: '';
        position: absolute;
        top: -60px;
        right: -60px;
        width: 240px;
        height: 240px;
        border-radius: 50%;
        background: rgba(232, 135, 30, .12);
        pointer-events: none;
    }
    .subscribe-card h2 {
        font-size: 28px;
        font-weight: 700;
        margin-bottom: 10px;
        line-height: 1.3;
    }
    .subscribe-card p {
        font-size: 14px;
        color: rgba(255, 255, 255, .75);
        line-height: 1.8;
        margin-bottom: 0;
    }
    .subscribe-form-wrap {
        position: relative;
        z-index: 1;
    }
    .subscribe-form {
        display: flex;
        gap: 12px;
        max-width: 560px;
        margin-left: auto;
    }
    .subscribe-form input {
        flex: 1;
        min-width: 0;
        background: #fff;
        border: 1px solid transparent;
        border-radius: var(--radius-md);
        padding: 12px 18px;
        font-size: 14px;
        color: var(--text);
        transition: border-color .2s, box-shadow .2s;
    }
    .subscribe-form input::placeholder {
        color: #9AA8A0;
    }
    .subscribe-form input:focus {
        border-color: var(--accent);
        box-shadow: 0 0 0 3px rgba(232, 135, 30, .2);
    }
    .subscribe-form input.input-error {
        border-color: var(--accent-hover);
    }
    .form-error {
        font-size: 12px;
        color: #FFD3A5;
        margin-top: 8px;
        min-height: 18px;
    }
    .form-note {
        font-size: 12px;
        color: rgba(255, 255, 255, .5);
        margin-top: 10px;
    }
    .subscribe-success {
        display: flex;
        align-items: center;
        gap: 12px;
        background: rgba(255, 255, 255, .12);
        border-radius: var(--radius-md);
        padding: 16px 20px;
        font-size: 15px;
        font-weight: 500;
    }
    .subscribe-success i {
        color: var(--accent);
        font-size: 22px;
    }

    @media (max-width: 991px) {
        .subscribe-form {
            margin-left: 0;
            max-width: 100%;
            margin-top: 16px;
            flex-direction: column;
        }
        .subscribe-form .btn {
            width: 100%;
        }
        .subscribe-card {
            padding: 32px 24px;
        }
    }

    /* ===== 9. Replay / Entry Section ===== */
    .replay-section {
        padding: 72px 0;
        background: var(--surface);
        border-top: 1px solid var(--border);
        border-bottom: 1px solid var(--border);
    }
    .replay-card {
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow-sm);
        transition: transform .3s, box-shadow .3s;
        height: 100%;
    }
    .replay-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-hover);
    }
    .replay-thumb {
        position: relative;
        overflow: hidden;
        aspect-ratio: 16 / 9;
        background: var(--surface-dark);
    }
    .replay-thumb img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform .4s;
    }
    .replay-card:hover .replay-thumb img {
        transform: scale(1.04);
    }
    .replay-play {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 56px;
        height: 56px;
        border-radius: 50%;
        background: rgba(255, 255, 255, .92);
        color: var(--primary);
        font-size: 20px;
        display: flex;
        align-items: center;
        justify-content: center;
        box-shadow: 0 6px 20px rgba(0, 0, 0, .25);
        transition: transform .25s, background .25s;
        border: none;
        cursor: pointer;
    }
    .replay-card:hover .replay-play {
        transform: translate(-50%, -50%) scale(1.1);
        background: #fff;
    }
    .replay-body {
        padding: 24px;
    }
    .replay-body h3 {
        font-size: 20px;
        font-weight: 700;
        color: var(--text);
        margin-bottom: 8px;
    }
    .replay-body p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.7;
        margin-bottom: 18px;
    }

    @media (max-width: 767px) {
        .replay-section {
            padding: 48px 0;
        }
    }

    /* ===== 10. Latest News / CMS Cards ===== */
    .latest-section {
        padding: 72px 0;
        background: var(--bg);
    }
    .news-card {
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow-sm);
        transition: transform .3s, box-shadow .3s;
        height: 100%;
        display: flex;
        flex-direction: column;
    }
    .news-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-hover);
    }
    .news-thumb {
        position: relative;
        aspect-ratio: 16 / 9;
        overflow: hidden;
        background: var(--surface-dark);
    }
    .news-thumb img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform .4s;
    }
    .news-card:hover .news-thumb img {
        transform: scale(1.05);
    }
    .news-cat {
        position: absolute;
        top: 12px;
        left: 12px;
        z-index: 2;
        background: rgba(255, 255, 255, .95);
        color: var(--primary);
        font-size: 12px;
        font-weight: 600;
        letter-spacing: .5px;
        padding: 3px 12px;
        border-radius: var(--radius-pill);
        border: 1px solid rgba(30, 77, 58, .2);
    }
    .news-body {
        padding: 20px;
        display: flex;
        flex-direction: column;
        flex: 1;
    }
    .news-title {
        font-size: 18px;
        font-weight: 700;
        line-height: 1.4;
        color: var(--text);
        margin-bottom: 10px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        min-height: 50px;
    }
    .news-title a {
        color: inherit;
        transition: color .2s;
    }
    .news-title a:hover {
        color: var(--primary);
    }
    .news-excerpt {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.7;
        margin-bottom: 16px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .news-footer {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 10px;
        padding-top: 14px;
        border-top: 1px solid var(--border);
        margin-top: auto;
    }
    .news-date {
        font-size: 13px;
        color: var(--text-muted);
        font-family: var(--font-mono);
    }
    .news-link {
        font-size: 14px;
        font-weight: 600;
        color: var(--primary);
        display: inline-flex;
        align-items: center;
        gap: 4px;
        transition: gap .2s;
        white-space: nowrap;
    }
    .news-link:hover {
        gap: 8px;
        color: var(--primary-dark);
    }

    /* Empty state */
    .news-empty {
        grid-column: 1 / -1;
        text-align: center;
        padding: 60px 24px;
        background: var(--surface);
        border: 1px dashed var(--line);
        border-radius: var(--radius-lg);
    }
    .news-empty i {
        font-size: 44px;
        color: var(--line);
        margin-bottom: 16px;
        display: block;
    }
    .news-empty p {
        font-size: 15px;
        color: var(--text-muted);
        margin-bottom: 20px;
    }

    @media (max-width: 767px) {
        .latest-section {
            padding: 48px 0;
        }
        .news-title {
            font-size: 17px;
            min-height: auto;
        }
    }

    /* ===== 11. FAQ Section ===== */
    .faq-section {
        padding: 72px 0;
        background: var(--surface);
        border-top: 1px solid var(--border);
    }
    .faq-accordion {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    .faq-accordion .accordion-item {
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 16px;
        overflow: hidden;
        box-shadow: var(--shadow-sm);
        transition: box-shadow .25s;
    }
    .faq-accordion .accordion-item:hover {
        box-shadow: var(--shadow-hover);
    }
    .faq-accordion .accordion-header {
        border-bottom: none;
        margin: 0;
    }
    .faq-accordion .accordion-button {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        padding: 18px 20px;
        font-size: 16px;
        font-weight: 600;
        color: var(--text);
        background: transparent;
        border: none;
        border-radius: 16px;
        cursor: pointer;
        transition: color .2s, padding-left .25s;
        position: relative;
        text-align: left;
    }
    .faq-accordion .accordion-button::after {
        content: none;
    }
    .faq-accordion .accordion-button .faq-icon {
        width: 24px;
        height: 24px;
        border-radius: 50%;
        background: rgba(30, 77, 58, .08);
        color: var(--primary);
        font-size: 14px;
        font-weight: 300;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
        transition: transform .3s, background .3s;
        font-family: var(--font-mono);
        line-height: 1;
    }
    .faq-accordion .accordion-button[aria-expanded="true"] {
        color: var(--primary);
        padding-left: 24px;
        border-left: 3px solid var(--accent);
    }
    .faq-accordion .accordion-button[aria-expanded="true"] .faq-icon {
        background: var(--accent);
        color: var(--primary-dark);
        transform: rotate(45deg);
    }
    .faq-accordion .accordion-body {
        padding: 4px 20px 20px;
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.8;
        border-top: 1px solid var(--border);
        margin-top: 0;
    }
    .faq-accordion .accordion-collapse {
        transition: all .3s ease;
    }

    @media (max-width: 767px) {
        .faq-section {
            padding: 48px 0;
        }
        .faq-accordion .accordion-button {
            font-size: 15px;
            padding: 16px;
        }
        .faq-accordion .accordion-body {
            padding: 4px 16px 16px;
        }
    }

    /* ===== 12. CTA Band ===== */
    .cta-band {
        padding: 72px 0;
        background: var(--bg);
    }
    .cta-inner {
        background: linear-gradient(135deg, #1E4D3A 0%, #153A2C 100%);
        border-radius: 24px;
        padding: 48px 40px;
        text-align: center;
        color: #fff;
        box-shadow: 0 16px 40px rgba(21, 58, 44, .3);
        position: relative;
        overflow: hidden;
    }
    .cta-inner::after {
        content: '';
        position: absolute;
        bottom: -80px;
        left: -80px;
        width: 260px;
        height: 260px;
        border-radius: 50%;
        background: rgba(232, 135, 30, .1);
        pointer-events: none;
    }
    .cta-inner h2 {
        font-size: 28px;
        font-weight: 700;
        margin-bottom: 12px;
    }
    .cta-inner p {
        font-size: 15px;
        color: rgba(255, 255, 255, .75);
        max-width: 620px;
        margin: 0 auto 28px;
        line-height: 1.8;
    }
    .cta-actions {
        display: flex;
        justify-content: center;
        align-items: center;
        flex-wrap: wrap;
        gap: 14px;
    }

    @media (max-width: 575px) {
        .cta-inner {
            padding: 36px 20px;
        }
        .cta-actions .btn {
            width: 100%;
        }
    }

    /* ===== 13. Footer ===== */
    .site-footer {
        background: var(--surface-dark);
        color: rgba(255, 255, 255, .8);
        padding: 64px 0 0;
    }
    .footer-brand .footer-logo {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        font-size: 20px;
        font-weight: 700;
        color: #fff;
        margin-bottom: 14px;
        letter-spacing: .5px;
    }
    .footer-brand .footer-logo .logo-dot {
        width: 10px;
        height: 10px;
        border-radius: 50%;
        background: var(--accent);
        box-shadow: 0 0 0 4px rgba(232, 135, 30, .15);
    }
    .footer-brand p {
        font-size: 14px;
        color: rgba(255, 255, 255, .55);
        line-height: 1.7;
        max-width: 260px;
    }
    .site-footer h4 {
        font-size: 13px;
        font-weight: 600;
        letter-spacing: 1px;
        color: rgba(255, 255, 255, .4);
        text-transform: uppercase;
        margin-bottom: 16px;
    }
    .site-footer ul {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    .site-footer ul a {
        font-size: 14px;
        color: rgba(255, 255, 255, .75);
        transition: color .2s, padding-left .2s;
    }
    .site-footer ul a:hover {
        color: var(--accent);
        padding-left: 4px;
    }
    .site-footer ul li {
        font-size: 14px;
        color: rgba(255, 255, 255, .55);
    }
    .footer-bottom {
        margin-top: 48px;
        padding: 20px 0;
        border-top: 1px solid rgba(255, 255, 255, .08);
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 10px;
    }
    .footer-bottom p {
        font-size: 13px;
        color: rgba(255, 255, 255, .4);
        margin: 0;
    }
    .footer-bottom .footer-icp {
        letter-spacing: .5px;
    }

    @media (max-width: 767px) {
        .site-footer {
            padding: 48px 0 0;
        }
        .footer-bottom {
            flex-direction: column;
            text-align: center;
        }
    }

    /* ===== 14. News Card Alternate CSS for article index ===== */
    .row.g-4 {
        --bs-gutter-y: 24px;
    }

    /* ===== 15. Utility Fixes ===== */
    .accordion-button:not(.collapsed) {
        box-shadow: none;
    }
    .accordion-button:focus {
        box-shadow: none;
        border-color: transparent;
    }
    .listing-card {
        background: #fff;
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        padding: 28px;
        box-shadow: var(--shadow-sm);
        transition: transform .3s, box-shadow .3s;
    }
    .listing-card:hover {
        transform: translateY(-3px);
        box-shadow: var(--shadow-hover);
    }
    .listing-card h3 {
        font-size: 18px;
        font-weight: 600;
        color: var(--text);
        margin-bottom: 8px;
    }
    .listing-card p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.7;
        margin-bottom: 0;
    }
    .listing-icon {
        width: 44px;
        height: 44px;
        border-radius: 12px;
        background: rgba(30, 77, 58, .08);
        color: var(--primary);
        font-size: 18px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 14px;
    }

/* roulang page: category1 */
/* ============ 设计变量 ============ */
        :root {
            --primary: #1E4D3A;
            --primary-dark: #153A2C;
            --surface-dark: #142A22;
            --accent: #E8871E;
            --accent-hover: #D1740C;
            --bg: #F6F3EE;
            --surface: #FFFFFF;
            --text: #23332C;
            --text-muted: #6B7C72;
            --border: #E3DED5;
            --line: #D6CFC4;
            --radius-lg: 20px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 2px 8px rgba(30, 77, 58, .06);
            --shadow-hover: 0 8px 24px rgba(30, 77, 58, .10);
            --shadow-hero: 0 12px 32px rgba(0, 0, 0, .18);
            --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-mono: "DIN Alternate", "Roboto Mono", "SFMono-Regular", monospace;
        }

        /* ============ 基础 Reset / Base ============ */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            margin: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        body.modal-open {
            padding-right: 0 !important;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        ol,
        ul {
            padding-left: 0;
            margin-bottom: 0;
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            margin: 0 0 12px;
            color: var(--text);
        }
        p {
            margin: 0 0 16px;
        }
        p:last-child {
            margin-bottom: 0;
        }

        /* ============ 通用布局 ============ */
        .container {
            max-width: 1240px;
            padding-left: 20px;
            padding-right: 20px;
        }
        .section {
            padding: 72px 0;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 8px;
            letter-spacing: .5px;
        }
        .section-subtitle {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 32px;
            max-width: 640px;
        }

        /* ============ 按钮系统 ============ */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            border-radius: 999px;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all .25s ease;
            text-decoration: none;
            white-space: nowrap;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(30, 77, 58, .25);
            outline: none;
        }
        .btn-primary:focus-visible {
            box-shadow: 0 0 0 3px rgba(30, 77, 58, .25), 0 6px 18px rgba(30, 77, 58, .2);
        }
        .btn-outline-primary {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline-primary:hover {
            background: rgba(30, 77, 58, .06);
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .btn-outline-primary:focus-visible {
            box-shadow: 0 0 0 3px rgba(30, 77, 58, .2);
            outline: none;
        }
        .btn-accent {
            background-color: var(--accent);
            color: var(--primary-dark);
            border-color: var(--accent);
            font-weight: 700;
        }
        .btn-accent:hover {
            background-color: var(--accent-hover);
            border-color: var(--accent-hover);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(232, 135, 30, .25);
        }
        .btn-accent:focus-visible {
            box-shadow: 0 0 0 3px rgba(232, 135, 30, .3);
            outline: none;
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 14px;
        }
        .btn-block-mobile {
            width: 100%;
        }

        /* ============ 悬浮胶囊导航 ============ */
        .site-nav {
            position: sticky;
            top: 16px;
            z-index: 1030;
            padding: 0;
        }
        .site-nav .container {
            max-width: 1240px;
        }
        .nav-capsule {
            display: flex;
            align-items: center;
            gap: 24px;
            background: rgba(246, 243, 238, .88);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 8px 20px;
            box-shadow: var(--shadow-card);
            min-height: 64px;
        }
        .nav-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: .3px;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .nav-logo:hover {
            color: var(--primary-dark);
        }
        .logo-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent);
            display: inline-block;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: auto;
            margin-right: 8px;
        }
        .nav-link {
            display: inline-block;
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            border-radius: 999px;
            transition: background .2s, color .2s;
            text-decoration: none;
        }
        .nav-link:hover {
            background: rgba(30, 77, 58, .08);
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 700;
            background: rgba(30, 77, 58, .06);
        }
        .nav-cta-btn {
            flex-shrink: 0;
        }
        .navbar-toggler {
            display: none;
            border: none;
            background: transparent;
            width: 40px;
            height: 40px;
            padding: 8px;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            border-radius: 50%;
            cursor: pointer;
            margin-left: auto;
        }
        .navbar-toggler span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: transform .25s, opacity .25s;
        }
        .navbar-toggler[aria-expanded="true"] span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .navbar-toggler[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }
        .navbar-toggler[aria-expanded="true"] span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .collapse-menu {
            display: none;
            position: absolute;
            top: calc(100% + 10px);
            left: 0;
            right: 0;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 16px;
            box-shadow: 0 12px 32px rgba(20, 42, 34, .15);
            padding: 16px;
            z-index: 1040;
        }
        .collapse-menu.show {
            display: block;
        }
        .nav-links-mobile {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .nav-links-mobile .nav-link {
            padding: 12px 16px;
            border-radius: 12px;
            font-size: 15px;
        }
        .nav-cta-mobile {
            display: none;
            margin-top: 12px;
            padding-top: 12px;
            border-top: 1px solid var(--border);
        }
        .nav-cta-mobile .btn {
            width: 100%;
        }

        /* ============ 分类页 Hero（小尺寸） ============ */
        .cat-hero {
            position: relative;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 55%, var(--surface-dark) 100%);
            padding: 92px 0 80px;
            margin-top: -40px;
            border-radius: 0 0 32px 32px;
            overflow: hidden;
        }
        .cat-hero::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -40px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(232, 135, 30, .18);
            filter: blur(60px);
            pointer-events: none;
        }
        .cat-hero::after {
            content: "";
            position: absolute;
            bottom: -80px;
            left: 20%;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .06);
            pointer-events: none;
        }
        .cat-hero .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .cat-hero .hero-badge {
            display: inline-block;
            background: var(--accent);
            color: var(--primary-dark);
            font-size: 12px;
            font-weight: 700;
            letter-spacing: .5px;
            padding: 4px 16px;
            border-radius: 999px;
            margin-bottom: 20px;
        }
        .cat-hero h1 {
            color: #fff;
            font-size: clamp(32px, 4vw, 44px);
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: .5px;
            line-height: 1.25;
        }
        .cat-hero .hero-desc {
            color: rgba(255, 255, 255, .85);
            font-size: 15px;
            line-height: 1.8;
            max-width: 560px;
            margin: 0 auto;
        }

        /* ============ 分类页主体 ============ */
        .cat-main {
            padding: 64px 0 72px;
        }
        .cat-main .container {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 360px;
            gap: 32px;
            align-items: start;
        }
        /* 左侧文章摘要列表 */
        .post-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .post-list-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 8px;
        }
        .post-list-header h2 {
            font-size: 24px;
            font-weight: 700;
            margin: 0;
        }
        .post-count {
            font-size: 13px;
            color: var(--text-muted);
            background: var(--surface);
            border: 1px solid var(--border);
            padding: 4px 14px;
            border-radius: 999px;
        }
        .post-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            display: flex;
            gap: 0;
            transition: box-shadow .25s ease, transform .25s ease;
            box-shadow: var(--shadow-card);
        }
        .post-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .post-card-thumb {
            width: 240px;
            flex-shrink: 0;
            min-height: 170px;
            overflow: hidden;
            position: relative;
        }
        .post-card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .post-card:hover .post-card-thumb img {
            transform: scale(1.04);
        }
        .post-card-thumb .thumb-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: var(--primary-dark);
            font-size: 12px;
            font-weight: 700;
            padding: 3px 12px;
            border-radius: 999px;
            letter-spacing: .3px;
            z-index: 2;
        }
        .post-card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .post-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.45;
            margin-bottom: 10px;
            color: var(--text);
            transition: color .2s;
        }
        .post-card:hover .post-card-body h3 {
            color: var(--primary);
        }
        .post-card-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
            border-top: 1px solid var(--border);
            padding-top: 14px;
            margin-top: auto;
        }
        .post-card-meta .date {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .post-card-meta .date::before {
            content: "";
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            display: inline-block;
        }
        .read-more {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap .2s;
        }
        .read-more:hover {
            gap: 8px;
            color: var(--accent-hover);
        }
        .read-more::after {
            content: "→";
            font-size: 14px;
        }

        /* ============ 右侧侧边栏 ============ */
        .cat-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 96px;
        }
        .sidebar-widget {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-card);
        }
        .sidebar-widget h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-widget h3::before {
            content: "";
            width: 4px;
            height: 18px;
            border-radius: 2px;
            background: var(--accent);
            display: inline-block;
        }
        .widget-nav-list {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .widget-nav-list a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 14px;
            font-size: 14px;
            color: var(--text);
            border-radius: var(--radius-md);
            transition: background .2s, color .2s;
            text-decoration: none;
        }
        .widget-nav-list a:hover {
            background: rgba(30, 77, 58, .06);
            color: var(--primary);
        }
        .widget-nav-list a.active {
            background: rgba(30, 77, 58, .08);
            color: var(--primary);
            font-weight: 600;
        }
        .widget-nav-list a .count {
            font-size: 12px;
            color: var(--text-muted);
            background: var(--bg);
            padding: 2px 10px;
            border-radius: 999px;
            font-family: var(--font-mono);
        }
        /* 标签云 */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-item {
            display: inline-block;
            padding: 6px 14px;
            font-size: 13px;
            color: var(--primary);
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            text-decoration: none;
            transition: all .2s ease;
        }
        .tag-item:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-1px);
        }
        /* 侧边栏 FAQ */
        .sidebar-faq .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--surface);
        }
        .sidebar-faq .accordion-item:last-child {
            margin-bottom: 0;
        }
        .sidebar-faq .accordion-button {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            background: var(--surface);
            padding: 14px 16px;
            border: none;
            box-shadow: none;
            position: relative;
            border-radius: var(--radius-md) !important;
            transition: background .2s, color .2s;
        }
        .sidebar-faq .accordion-button:hover {
            background: rgba(30, 77, 58, .04);
        }
        .sidebar-faq .accordion-button:not(.collapsed) {
            background: var(--surface);
            color: var(--primary);
            box-shadow: none;
        }
        .sidebar-faq .accordion-button::after {
            background-image: none;
            content: "+";
            font-size: 20px;
            font-weight: 300;
            color: var(--primary);
            transform: none;
            transition: transform .25s;
            width: auto;
            height: auto;
        }
        .sidebar-faq .accordion-button:not(.collapsed)::after {
            content: "−";
            transform: rotate(0deg);
        }
        .sidebar-faq .accordion-body {
            font-size: 13px;
            line-height: 1.7;
            color: var(--text-muted);
            padding: 4px 16px 16px;
            border-top: 1px solid var(--border);
            background: var(--surface);
        }

        /* ============ 底部 CTA 区 ============ */
        .cat-cta {
            padding: 0 0 72px;
        }
        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .cta-card {
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            min-height: 220px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: flex-start;
            position: relative;
            overflow: hidden;
            border: 1px solid var(--border);
            transition: transform .25s ease, box-shadow .25s ease;
        }
        .cta-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .cta-card-ghost {
            background: var(--surface);
            box-shadow: var(--shadow-card);
        }
        .cta-card-solid {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-color: transparent;
            box-shadow: 0 8px 24px rgba(30, 77, 58, .2);
        }
        .cta-card-solid h3 {
            color: #fff;
        }
        .cta-card-solid p {
            color: rgba(255, 255, 255, .8);
        }
        .cta-card h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .cta-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 20px;
            max-width: 340px;
        }
        .cta-card-solid p {
            color: rgba(255, 255, 255, .8);
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--surface-dark);
            color: #fff;
            padding: 56px 0 0;
        }
        .site-footer .footer-brand {
            margin-bottom: 12px;
        }
        .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, .6);
            max-width: 300px;
            margin-bottom: 0;
        }
        .site-footer .footer-logo .logo-dot {
            background: var(--accent);
        }
        .site-footer h4 {
            font-size: 13px;
            font-weight: 700;
            color: rgba(255, 255, 255, .45);
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 16px;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .site-footer ul a {
            color: rgba(255, 255, 255, .75);
            font-size: 14px;
            text-decoration: none;
            transition: color .2s;
        }
        .site-footer ul a:hover {
            color: var(--accent);
        }
        .site-footer ul li {
            color: rgba(255, 255, 255, .55);
            font-size: 14px;
        }
        .footer-bottom {
            margin-top: 48px;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, .08);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }
        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, .45);
            margin: 0;
        }
        .footer-bottom .footer-icp {
            font-family: var(--font-mono);
        }

        /* ============ 响应式断点 ============ */
        @media (max-width: 991px) {
            .cat-hero {
                padding: 80px 0 64px;
            }
            .cat-main .container {
                grid-template-columns: 1fr;
            }
            .cat-sidebar {
                position: static;
                margin-top: 8px;
            }
            .post-card-thumb {
                width: 200px;
            }
            .cta-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 767px) {
            .section {
                padding: 48px 0;
            }
            .nav-capsule {
                padding: 8px 16px;
                gap: 12px;
            }
            .nav-logo {
                font-size: 17px;
            }
            .nav-links,
            .nav-cta-desktop {
                display: none;
            }
            .navbar-toggler {
                display: flex;
            }
            .nav-cta-mobile {
                display: block;
            }
            .collapse-menu {
                top: calc(100% + 8px);
            }
            .cat-hero {
                padding: 72px 0 56px;
                margin-top: -40px;
                border-radius: 0 0 24px 24px;
            }
            .cat-hero h1 {
                font-size: 30px;
            }
            .cat-main {
                padding: 40px 0 48px;
            }
            .post-card {
                flex-direction: column;
            }
            .post-card-thumb {
                width: 100%;
                height: 200px;
                min-height: auto;
            }
            .post-card-body {
                padding: 20px;
            }
            .post-card-body h3 {
                font-size: 17px;
            }
            .post-list-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .cta-card {
                padding: 28px 24px;
                min-height: auto;
            }
            .btn {
                width: 100%;
                max-width: 420px;
            }
            .btn-sm {
                width: auto;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .nav-logo {
                font-size: 15px;
                gap: 8px;
            }
            .logo-dot {
                width: 8px;
                height: 8px;
            }
            .nav-capsule {
                min-height: 56px;
            }
            .post-card-thumb {
                height: 180px;
            }
        }

        /* ============ Bootstrap 默认视觉覆盖 ============ */
        .accordion-button:focus {
            box-shadow: none;
        }
        .accordion-button:not(.collapsed)::after {
            background-image: none;
        }
        a.text-decoration-none {
            text-decoration: none;
        }

/* roulang page: article */
:root {
            --primary: #1E4D3A;
            --primary-dark: #153A2C;
            --surface-dark: #142A22;
            --accent: #E8871E;
            --accent-hover: #D1740C;
            --bg: #F6F3EE;
            --surface: #FFFFFF;
            --text: #23332C;
            --text-muted: #6B7C72;
            --border: #E3DED5;
            --line: #D6CFC4;
            --radius-lg: 20px;
            --radius-sm: 12px;
            --shadow-card: 0 2px 8px rgba(30, 77, 58, .06);
            --shadow-card-hover: 0 8px 24px rgba(30, 77, 58, .12);
            --shadow-hero: 0 12px 32px rgba(0, 0, 0, .18);
            --transition: .25s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
        }
        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            cursor: pointer;
            border: 1px solid transparent;
            transition: background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
            text-decoration: none;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(30, 77, 58, .22);
        }
        .btn-primary:focus-visible {
            outline: 2px solid rgba(30, 77, 58, .35);
            outline-offset: 2px;
        }
        .btn-accent {
            background: var(--accent);
            color: var(--primary-dark);
            border-color: var(--accent);
            font-weight: 700;
        }
        .btn-accent:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(232, 135, 30, .28);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: rgba(30, 77, 58, .06);
            color: var(--primary-dark);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 14px;
        }
        .btn-lg {
            padding: 14px 40px;
            font-size: 16px;
        }
        .site-nav {
            position: sticky;
            top: 16px;
            z-index: 1030;
            padding: 0;
            pointer-events: none;
        }
        .site-nav .container {
            pointer-events: none;
        }
        .nav-capsule {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(246, 243, 238, .92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 10px 14px 10px 24px;
            box-shadow: 0 4px 20px rgba(30, 77, 58, .06);
            pointer-events: auto;
        }
        .nav-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: .5px;
            white-space: nowrap;
        }
        .logo-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent);
            display: inline-block;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: 16px;
        }
        .nav-link {
            display: inline-block;
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 14px;
            color: var(--text);
            transition: background var(--transition), color var(--transition);
        }
        .nav-link:hover {
            background: rgba(30, 77, 58, .08);
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 700;
            background: rgba(30, 77, 58, .06);
        }
        .nav-cta-btn {
            flex-shrink: 0;
            margin-left: 12px;
        }
        .navbar-toggler {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: rgba(30, 77, 58, .08);
            border: none;
            cursor: pointer;
            padding: 10px;
        }
        .navbar-toggler span {
            display: block;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
            transition: all .3s;
        }
        .collapse-menu {
            display: none;
        }
        .article-page {
            padding-top: 48px;
        }
        .article-breadcrumb {
            padding: 24px 0 16px;
        }
        .article-breadcrumb .container {
            max-width: 760px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .article-breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .article-breadcrumb a:hover {
            color: var(--primary);
        }
        .article-breadcrumb .divider {
            color: var(--line);
            font-size: 12px;
        }
        .article-breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
            max-width: 260px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .article-wrapper {
            display: flex;
            justify-content: center;
        }
        .article-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 40px 44px;
            max-width: 760px;
            width: 100%;
            margin-bottom: 48px;
            position: relative;
        }
        .article-title {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 700;
            line-height: 1.35;
            color: var(--text);
            margin-bottom: 16px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--line);
            margin-bottom: 24px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .meta-item i {
            color: var(--accent);
            font-size: 14px;
        }
        .article-body {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
        }
        .article-body p {
            margin-bottom: 16px;
        }
        .article-body h2 {
            font-size: 22px;
            font-weight: 600;
            margin: 32px 0 14px;
            color: var(--primary);
            line-height: 1.4;
        }
        .article-body h3 {
            font-size: 18px;
            font-weight: 600;
            margin: 24px 0 12px;
            color: var(--text);
            line-height: 1.5;
        }
        .article-body ul,
        .article-body ol {
            margin: 0 0 16px 1.2em;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body blockquote {
            border-left: 4px solid var(--accent);
            background: rgba(232, 135, 30, .07);
            padding: 12px 18px;
            border-radius: 0 12px 12px 0;
            margin: 20px 0;
            color: var(--text-muted);
            font-style: normal;
        }
        .article-body img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
            margin: 16px 0;
        }
        .article-body figure {
            margin: 20px 0;
        }
        .article-body figcaption {
            font-size: 13px;
            color: var(--text-muted);
            text-align: center;
            margin-top: 6px;
        }
        .article-body a {
            color: var(--primary);
            border-bottom: 1px solid rgba(30, 77, 58, .3);
        }
        .article-body a:hover {
            color: var(--accent-hover);
            border-bottom-color: var(--accent);
        }
        .article-divider {
            height: 1px;
            background: var(--line);
            margin: 32px 0;
        }
        .article-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 500;
            color: var(--primary);
            background: rgba(30, 77, 58, .07);
            border: 1px solid rgba(30, 77, 58, .18);
            letter-spacing: .5px;
            transition: background var(--transition);
        }
        .tag:hover {
            background: rgba(30, 77, 58, .12);
        }
        .back-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--primary);
            font-weight: 500;
            transition: gap var(--transition), color var(--transition);
        }
        .back-link:hover {
            gap: 12px;
            color: var(--accent-hover);
        }
        .not-found {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 64px 40px;
            text-align: center;
            max-width: 760px;
            width: 100%;
            margin-bottom: 48px;
        }
        .not-found-icon {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: rgba(232, 135, 30, .1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 24px;
            font-size: 30px;
            color: var(--accent);
        }
        .not-found h2 {
            font-size: 24px;
            margin-bottom: 12px;
            color: var(--text);
        }
        .not-found p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .related-section {
            padding: 72px 0;
            background: var(--bg);
        }
        .section-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 40px;
        }
        .section-head h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text);
            position: relative;
            padding-bottom: 8px;
        }
        .section-head h2::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 48px;
            height: 3px;
            border-radius: 2px;
            background: var(--accent);
        }
        .section-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--primary);
            font-weight: 500;
            transition: gap var(--transition), color var(--transition);
        }
        .section-more:hover {
            gap: 12px;
            color: var(--accent-hover);
        }
        .related-card {
            display: flex;
            flex-direction: column;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition), box-shadow var(--transition);
            height: 100%;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .related-thumb {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #e9e4da;
        }
        .related-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .related-card:hover .related-thumb img {
            transform: scale(1.04);
        }
        .related-info {
            padding: 20px;
        }
        .related-info h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
            line-height: 1.4;
        }
        .related-info p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }
        .faq-section {
            padding: 72px 0;
            background: #EFEBE4;
        }
        .faq-section .container {
            max-width: 860px;
        }
        .faq-section > .container > h2 {
            text-align: center;
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 40px;
            color: var(--text);
            position: relative;
        }
        .faq-section > .container > h2::after {
            content: "";
            display: block;
            width: 48px;
            height: 3px;
            border-radius: 2px;
            background: var(--accent);
            margin: 12px auto 0;
        }
        .accordion {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .accordion-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .accordion-button {
            background: var(--surface);
            color: var(--text);
            font-size: 16px;
            font-weight: 600;
            padding: 18px 22px;
            box-shadow: none;
            border: none;
            text-align: left;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            transition: background var(--transition), color var(--transition);
        }
        .accordion-button:not(.collapsed) {
            background: var(--surface);
            color: var(--primary);
            border-left: 3px solid var(--accent);
            padding-left: 19px;
        }
        .accordion-button:focus {
            box-shadow: none;
        }
        .accordion-button::after {
            display: none;
        }
        .accordion-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: rgba(30, 77, 58, .06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--primary);
            flex-shrink: 0;
            transition: transform .3s ease, background .3s ease;
        }
        .accordion-button:not(.collapsed) .accordion-icon {
            transform: rotate(45deg);
            background: rgba(232, 135, 30, .15);
            color: var(--accent-hover);
        }
        .accordion-body {
            padding: 16px 22px 20px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            border-top: 1px solid var(--border);
        }
        .cta-section {
            padding: 72px 0;
        }
        .cta-section .container {
            max-width: 960px;
        }
        .cta-card {
            background: linear-gradient(135deg, #1E4D3A 0%, #153A2C 100%);
            border-radius: 24px;
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-card::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .05);
        }
        .cta-card::after {
            content: "";
            position: absolute;
            bottom: -80px;
            left: -40px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(232, 135, 30, .08);
        }
        .cta-card h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-card p {
            font-size: 15px;
            color: rgba(255, 255, 255, .8);
            margin-bottom: 28px;
            position: relative;
            z-index: 1;
        }
        .cta-card .btn {
            position: relative;
            z-index: 1;
        }
        .site-footer {
            background: var(--surface-dark);
            color: #E8E4DC;
            padding: 64px 0 0;
            margin-top: 0;
        }
        .site-footer .row {
            margin-bottom: 40px;
        }
        .footer-brand {
            margin-bottom: 12px;
        }
        .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 13px;
            color: rgba(255, 255, 255, .6);
            line-height: 1.7;
            margin-bottom: 0;
            max-width: 260px;
        }
        .site-footer h4 {
            font-size: 13px;
            letter-spacing: 1px;
            color: rgba(255, 255, 255, .5);
            margin-bottom: 16px;
            font-weight: 600;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .site-footer ul li {
            font-size: 14px;
            color: rgba(255, 255, 255, .7);
            line-height: 1.6;
        }
        .site-footer ul a {
            color: rgba(255, 255, 255, .7);
            transition: color var(--transition);
        }
        .site-footer ul a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 8px;
        }
        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
            margin: 0;
        }
        .footer-icp {
            font-size: 12px;
        }
        @media (max-width: 991px) {
            .nav-capsule {
                flex-wrap: wrap;
                border-radius: 20px;
                padding: 10px 12px;
            }
            .nav-links {
                display: none;
            }
            .nav-cta-desktop {
                display: none;
            }
            .navbar-toggler {
                display: flex;
            }
            .collapse-menu {
                display: block;
                width: 100%;
                margin-top: 10px;
                padding-top: 10px;
                border-top: 1px solid var(--border);
            }
            .nav-links-mobile {
                display: flex;
                flex-direction: column;
                gap: 4px;
                padding: 8px 0;
            }
            .nav-links-mobile .nav-link {
                padding: 12px 16px;
                font-size: 15px;
                border-radius: 12px;
            }
            .nav-cta-mobile {
                padding: 12px 0 4px;
                display: flex;
            }
            .nav-cta-mobile .btn {
                width: 100%;
            }
        }
        @media (max-width: 767px) {
            .article-page {
                padding-top: 24px;
            }
            .article-card {
                padding: 28px 20px;
                border-radius: 16px;
            }
            .article-title {
                font-size: 22px;
            }
            .article-meta {
                gap: 10px;
                font-size: 12px;
            }
            .related-section {
                padding: 48px 0;
            }
            .section-head h2 {
                font-size: 22px;
            }
            .faq-section {
                padding: 48px 0;
            }
            .faq-section > .container > h2 {
                font-size: 22px;
            }
            .cta-section {
                padding: 48px 0;
            }
            .cta-card {
                padding: 36px 20px;
                border-radius: 20px;
            }
            .cta-card h2 {
                font-size: 22px;
            }
            .site-footer {
                padding-top: 48px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .nav-capsule {
                border-radius: 16px;
            }
            .nav-logo {
                font-size: 15px;
                gap: 8px;
            }
            .nav-logo .logo-dot {
                width: 8px;
                height: 8px;
            }
            .article-breadcrumb .container {
                font-size: 12px;
                gap: 6px;
            }
            .article-card {
                padding: 20px 16px;
            }
            .article-body {
                font-size: 15px;
            }
            .tag {
                font-size: 11px;
                padding: 3px 10px;
            }
            .related-info {
                padding: 16px;
            }
            .section-more {
                font-size: 13px;
            }
        }