/* roulang page: index */
:root {
        --primary: #2F6FED;
        --primary-dark: #1D57D0;
        --mint: #0E9F9B;
        --amber: #D97706;
        --ink: #172033;
        --text-main: #3A4A62;
        --muted: #7590B0;
        --line: #E3E9F2;
        --bg: #F5F8FC;
        --card: #FFFFFF;
        --radius-lg: 16px;
        --radius-md: 12px;
        --radius-sm: 10px;
        --shadow: 0 1px 2px rgba(23, 32, 51, 0.04), 0 4px 16px rgba(23, 32, 51, 0.06);
        --shadow-lg: 0 12px 32px rgba(23, 32, 51, 0.10);
    }
    *,
    *::before,
    *::after {
        box-sizing: border-box;
    }
    body {
        margin: 0;
        font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Source Han Sans SC', 'Noto Sans CJK SC', sans-serif;
        background: var(--bg);
        color: var(--text-main);
        line-height: 1.85;
        -webkit-font-smoothing: antialiased;
    }
    img {
        max-width: 100%;
        display: block;
    }
    a {
        color: inherit;
        text-decoration: none;
    }
    button,
    input {
        font-family: inherit;
    }
    .container-x {
        max-width: 1200px;
        margin: 0 auto;
        padding-left: 24px;
        padding-right: 24px;
    }
    .glass-nav {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 60;
        width: 100%;
        background: rgba(255, 255, 255, 0.68);
        -webkit-backdrop-filter: blur(12px);
        backdrop-filter: blur(12px);
        border-bottom: 1px solid rgba(227, 233, 242, 0.55);
        transition: background-color .25s ease, box-shadow .25s ease, border-color .25s ease;
    }
    .glass-nav.scrolled {
        background: rgba(255, 255, 255, 0.97);
        box-shadow: 0 4px 16px rgba(23, 32, 51, 0.06);
        border-bottom: 1px solid var(--line);
    }
    .logo-dot {
        background: linear-gradient(135deg, #2F6FED 0%, #5A9AFF 100%);
        border-radius: 8px;
        width: 38px;
        height: 38px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        font-weight: 800;
        font-size: 18px;
        letter-spacing: 0;
        box-shadow: 0 4px 12px rgba(47, 111, 237, 0.22);
    }
    .nav-link {
        position: relative;
        font-size: 15px;
        font-weight: 500;
        color: #3A4A62;
        padding: 8px 2px;
        margin: 0 18px;
        transition: color .18s ease;
        white-space: nowrap;
    }
    .nav-link:hover {
        color: #172033;
    }
    .nav-link.active {
        color: #172033;
        font-weight: 600;
    }
    .nav-link.active::after {
        content: '';
        position: absolute;
        left: 0;
        right: 0;
        bottom: 0;
        height: 2.5px;
        border-radius: 999px;
        background: var(--primary);
    }
    .btn-primary {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        border-radius: 10px;
        background: var(--primary);
        color: #fff;
        padding: 10px 22px;
        font-size: 15px;
        font-weight: 600;
        border: none;
        cursor: pointer;
        transition: background-color .2s ease, transform .2s ease, box-shadow .2s ease;
        box-shadow: 0 8px 18px rgba(47, 111, 237, 0.18);
    }
    .btn-primary:hover {
        background: var(--primary-dark);
        transform: translateY(-1px);
        box-shadow: 0 10px 24px rgba(29, 87, 208, 0.24);
    }
    .btn-primary .arrow {
        transition: transform .2s ease;
    }
    .btn-primary:hover .arrow {
        transform: translateX(4px);
    }
    .btn-ghost {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        border-radius: 10px;
        background: #fff;
        color: var(--primary);
        border: 1px solid #C9D9F5;
        padding: 10px 22px;
        font-size: 15px;
        font-weight: 600;
        cursor: pointer;
        transition: border-color .2s ease, background .2s ease;
    }
    .btn-ghost:hover {
        border-color: var(--primary);
        background: #F0F5FF;
    }
    .search-field {
        display: flex;
        align-items: center;
        background: #fff;
        border: 1px solid #D9E1EC;
        border-radius: 999px;
        padding: 4px 6px 4px 16px;
        transition: border-color .2s ease, box-shadow .2s ease;
    }
    .search-field:focus-within {
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(47, 111, 237, 0.15);
    }
    .search-field input {
        border: none;
        outline: none;
        background: transparent;
        font-size: 14px;
        min-width: 130px;
        color: var(--ink);
    }
    .search-field button {
        background: var(--primary);
        color: #fff;
        border: none;
        border-radius: 999px;
        width: 32px;
        height: 32px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        transition: background .2s ease;
    }
    .search-field button:hover {
        background: var(--primary-dark);
    }
    .section-pad {
        padding: 96px 0;
    }
    .section-title-wrap {
        margin-bottom: 40px;
    }
    .section-title {
        font-size: 30px;
        font-weight: 700;
        color: var(--ink);
        line-height: 1.3;
        margin: 0;
    }
    .section-rule {
        width: 4px;
        height: 26px;
        border-radius: 99px;
        background: var(--primary);
        display: inline-block;
        margin-right: 14px;
        vertical-align: -3px;
    }
    .section-lead {
        color: var(--muted);
        font-size: 15px;
        margin-top: 10px;
        max-width: 560px;
    }
    .card {
        background: var(--card);
        border-radius: var(--radius-md);
        box-shadow: var(--shadow);
        transition: box-shadow .2s ease, transform .2s ease;
    }
    .card-hover:hover {
        box-shadow: var(--shadow-lg);
        transform: translateY(-2px);
    }
    .img-zoom {
        overflow: hidden;
    }
    .img-zoom img {
        transition: transform .25s ease;
    }
    .img-zoom:hover img {
        transform: scale(1.03);
    }
    .tag {
        display: inline-flex;
        align-items: center;
        border-radius: 999px;
        padding: 4px 12px;
        font-size: 13px;
        font-weight: 500;
        background: rgba(47, 111, 237, 0.10);
        color: var(--primary);
    }
    .tag-mint {
        background: rgba(14, 159, 155, 0.10);
        color: #0A7C79;
    }
    .tag-amber {
        background: rgba(217, 119, 6, 0.10);
        color: #B86409;
    }
    .tag-purple {
        background: rgba(124, 93, 250, 0.10);
        color: #6A4DE0;
    }
    .hero-backdrop {
        position: relative;
        overflow: hidden;
        background: linear-gradient(180deg, rgba(47, 111, 237, 0.04) 0%, var(--bg) 100%);
    }
    .hero-img-card {
        position: relative;
        border-radius: 20px;
        background-image: url('/assets/images/backpic/back-1.webp');
        background-size: cover;
        background-position: center;
        box-shadow: 0 18px 50px rgba(23, 32, 51, 0.18);
        min-height: 420px;
    }
    .hero-float-card {
        position: absolute;
        bottom: 30px;
        left: 30px;
        background: rgba(255, 255, 255, 0.88);
        -webkit-backdrop-filter: blur(10px);
        backdrop-filter: blur(10px);
        border-radius: 16px;
        padding: 18px 22px;
        box-shadow: var(--shadow);
        border: 1px solid rgba(255, 255, 255, 0.8);
    }
    .news-link {
        transition: color .18s ease;
    }
    .news-link:hover {
        color: var(--primary);
    }
    .line-list-item {
        padding: 20px 0;
        border-bottom: 1px solid var(--line);
    }
    .line-list-item:last-child {
        border-bottom: none;
    }
    .compare-wrap {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        border-radius: 14px;
    }
    .compare-table {
        width: 100%;
        border-collapse: separate;
        border-spacing: 0;
        background: #fff;
        border-radius: 14px;
        box-shadow: var(--shadow);
        min-width: 720px;
    }
    .compare-table th,
    .compare-table td {
        padding: 16px 18px;
        border-bottom: 1px solid var(--line);
        text-align: left;
        font-size: 15px;
        vertical-align: middle;
    }
    .compare-table th {
        background: #F8FAFD;
        font-weight: 600;
        color: var(--ink);
    }
    .compare-table th:first-child {
        border-radius: 14px 0 0 0;
    }
    .compare-table th:last-child {
        border-radius: 0 14px 0 0;
    }
    .compare-table tr:last-child td {
        border-bottom: none;
    }
    .compare-table .col-recommend {
        background: rgba(47, 111, 237, 0.04);
        border-left: 1px solid rgba(47, 111, 237, 0.16);
        border-right: 1px solid rgba(47, 111, 237, 0.16);
        position: relative;
    }
    .badge-status {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 14px;
        color: var(--text-main);
    }
    .badge-status .yes {
        color: var(--mint);
    }
    .badge-status .no {
        color: var(--muted);
    }
    .badge-status .minus {
        color: var(--muted);
    }
    .recommend-pill {
        position: absolute;
        top: -12px;
        right: 16px;
        background: var(--mint);
        color: #fff;
        font-size: 12px;
        font-weight: 600;
        border-radius: 999px;
        padding: 3px 12px;
        letter-spacing: 0.4px;
    }
    .feature-icon-box {
        width: 46px;
        height: 46px;
        border-radius: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 21px;
        color: var(--primary);
        background: rgba(47, 111, 237, 0.10);
    }
    .feature-icon-box.mint {
        background: rgba(14, 159, 155, 0.10);
        color: var(--mint);
    }
    .feature-icon-box.amber {
        background: rgba(217, 119, 6, 0.10);
        color: var(--amber);
    }
    .feature-icon-box.slate {
        background: rgba(100, 116, 139, 0.10);
        color: #4B5E78;
    }
    .feature-card {
        position: relative;
        background: #fff;
        border-radius: 14px;
        padding: 26px 22px;
        box-shadow: var(--shadow);
        border: 1px solid rgba(227, 233, 242, 0.7);
        transition: transform .2s ease, box-shadow .2s ease;
    }
    .feature-card:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-lg);
    }
    .feature-card.highlight-feature {
        border-color: rgba(217, 119, 6, 0.32);
        background: #FFFDF7;
    }
    .lock-overlay {
        position: absolute;
        inset: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        background: rgba(255, 255, 255, 0.28);
        -webkit-backdrop-filter: blur(2px);
        backdrop-filter: blur(2px);
        border-radius: 14px;
        z-index: 5;
    }
    .lock-btn {
        background: #fff;
        border-radius: 999px;
        padding: 8px 20px;
        font-size: 14px;
        font-weight: 600;
        color: var(--primary);
        border: 1px solid #D5E0F7;
        box-shadow: 0 8px 20px rgba(23, 32, 51, 0.08);
        display: inline-flex;
        align-items: center;
        gap: 8px;
        cursor: pointer;
        transition: background .2s ease, border-color .2s ease;
    }
    .lock-btn:hover {
        background: #F0F5FF;
        border-color: var(--primary);
    }
    .faq-block {
        background: #fff;
        border: 1px solid var(--line);
        border-radius: 14px;
        margin-bottom: 14px;
        overflow: hidden;
        transition: box-shadow .2s ease;
    }
    .faq-block.open {
        box-shadow: 0 8px 22px rgba(23, 32, 51, 0.07);
    }
    .faq-question {
        padding: 20px 24px;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 18px;
        font-size: 16px;
        font-weight: 600;
        color: var(--ink);
        list-style: none;
        transition: color .18s ease;
        outline: none;
    }
    .faq-question::-webkit-details-marker {
        display: none;
    }
    .faq-question:hover {
        color: var(--primary);
    }
    .faq-icon {
        width: 28px;
        height: 28px;
        border-radius: 50%;
        background: #EEF4FF;
        color: var(--primary);
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
        font-size: 18px;
        transition: transform .3s ease, background .3s ease;
    }
    .faq-block[open] .faq-icon {
        transform: rotate(45deg);
        background: var(--primary);
        color: #fff;
    }
    .faq-answer {
        padding: 0 24px 22px;
        color: var(--text-main);
        font-size: 15px;
    }
    .cta-band {
        background: linear-gradient(120deg, rgba(47, 111, 237, 0.10) 0%, rgba(245, 248, 252, 0.6) 100%);
        border-radius: 24px;
    }
    .footer-links a {
        display: block;
        font-size: 14px;
        color: #667A96;
        padding: 4px 0;
        transition: color .18s ease;
    }
    .footer-links a:hover {
        color: var(--primary);
    }
    .place-list-large {
        display: grid;
        grid-template-columns: 1.5fr 1fr;
        gap: 28px;
        align-items: start;
    }
    .vertical-link-list .line-list-item {
        padding: 16px 0;
    }
    .member-preview-layout {
        display: grid;
        grid-template-columns: 1.15fr 0.85fr;
        gap: 26px;
        align-items: stretch;
    }
    .category-enter-grid {
        display: grid;
        grid-template-columns: 1.1fr 0.9fr;
        gap: 24px;
    }
    .category-enter-grid .right-col {
        display: grid;
        grid-template-rows: 1fr 1fr;
        gap: 24px;
    }
    .empty-state {
        border: 1.5px dashed #C4D0E1;
        background: #F9FBFE;
        border-radius: 14px;
        color: var(--muted);
    }
    @media (max-width:991.98px) {
        .place-list-large {
            grid-template-columns: 1fr;
        }
        .member-preview-layout {
            grid-template-columns: 1fr;
        }
        .category-enter-grid {
            grid-template-columns: 1fr;
        }
        .category-enter-grid .right-col {
            grid-template-columns: 1fr 1fr;
            grid-template-rows: none;
        }
        .section-pad {
            padding: 68px 0;
        }
        .hero-img-card {
            min-height: 300px;
        }
    }
    @media (max-width:767.98px) {
        .container-x {
            padding-left: 18px;
            padding-right: 18px;
        }
        .section-title {
            font-size: 24px;
        }
        .faq-question {
            font-size: 15px;
            padding: 16px 16px;
        }
        .faq-answer {
            padding: 0 16px 16px;
        }
        .hero-img-card {
            min-height: 240px;
        }
        .category-enter-grid .right-col {
            grid-template-columns: 1fr;
        }
        .nav-desktop {
            display: none;
        }
    }
    .mobile-menu {
        display: none;
    }
    .mobile-menu.open {
        display: block;
    }
    @media (min-width:768px) {
        .nav-mobile-trigger {
            display: none !important;
        }
    }
    @media (max-width:767.98px) {
        .nav-desktop {
            display: none !important;
        }
        .nav-mobile-trigger {
            display: inline-flex !important;
        }
    }
    .search-box-inline {
        border: 1px solid #D9E1EC;
        border-radius: 999px;
        display: flex;
        align-items: center;
        padding: 6px 6px 6px 16px;
        background: #fff;
        max-width: 220px;
    }
    .search-box-inline:focus-within {
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(47, 111, 237, 0.12);
    }
    .search-box-inline input {
        border: none;
        outline: none;
        flex: 1;
        font-size: 14px;
        background: transparent;
        min-width: 0;
        color: var(--ink);
    }
    .search-box-inline button {
        border: none;
        background: var(--primary);
        color: #fff;
        border-radius: 999px;
        width: 30px;
        height: 30px;
        cursor: pointer;
        flex-shrink: 0;
    }

/* roulang page: category1 */
:root {
        --primary: #2F6FED;
        --primary-dark: #1D57D0;
        --teal: #0E9F9B;
        --amber: #D97706;
        --page-bg: #F5F8FC;
        --card-bg: #FFFFFF;
        --ink: #172033;
        --text: #3A4A62;
        --muted: #7590B0;
        --line: #E3E9F2;
        --line-dark: #D4DDE8;
        --radius-lg: 16px;
        --radius: 12px;
        --radius-sm: 10px;
        --shadow-sm: 0 1px 2px rgba(23,32,51,0.04), 0 4px 16px rgba(23,32,51,0.06);
        --shadow-lg: 0 12px 32px rgba(23,32,51,0.10);
        --transition: all .2s ease;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
        margin: 0;
        background: var(--page-bg);
        color: var(--text);
        font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
        font-size: 16px;
        line-height: 1.75;
        -webkit-font-smoothing: antialiased;
    }
    img { display: block; max-width: 100%; }
    a { color: inherit; text-decoration: none; }
    button { font-family: inherit; }

    .container-x {
        width: min(1200px, calc(100% - 48px));
        margin-inline: auto;
    }
    .logo-dot {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        border-radius: 10px;
        background: linear-gradient(135deg, #4B8BFF, #1D57D0);
        color: #fff;
        font-weight: 800;
        font-size: 18px;
        box-shadow: 0 4px 12px rgba(47,111,237,.22);
        flex-shrink: 0;
    }

    /* ========== 导航 ========== */
    .glass-nav {
        position: fixed;
        top: 0; left: 0; right: 0;
        z-index: 1000;
        background: rgba(255,255,255,0.68);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-bottom: 1px solid rgba(227,233,242,0.7);
        transition: background .25s ease, box-shadow .25s ease;
    }
    .glass-nav.scrolled {
        background: rgba(255,255,255,0.96);
        box-shadow: 0 4px 16px rgba(23,32,51,0.06);
    }
    .nav-desktop { gap: 28px; }
    .nav-link {
        position: relative;
        padding: 10px 4px;
        font-size: 15px;
        font-weight: 500;
        color: var(--text);
        border-radius: 6px;
        white-space: nowrap;
        transition: var(--transition);
    }
    .nav-link:hover { color: var(--primary); }
    .nav-link.active { color: var(--primary); font-weight: 600; }
    .nav-link.active::after {
        content: "";
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
        bottom: 1px;
        width: 18px;
        height: 3px;
        border-radius: 999px;
        background: var(--primary);
    }
    .btn-primary {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 11px 22px;
        border-radius: 10px;
        background: var(--primary);
        color: #fff;
        font-size: 15px;
        font-weight: 600;
        border: 1px solid var(--primary);
        transition: var(--transition);
    }
    .btn-primary:hover {
        background: var(--primary-dark);
        border-color: var(--primary-dark);
        transform: translateY(-1px);
        box-shadow: 0 8px 22px rgba(47,111,237,.18);
    }
    .btn-primary .arrow { transition: transform .2s ease; }
    .btn-primary:hover .arrow { transform: translateX(4px); }
    .btn-outline {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 10px 20px;
        border-radius: 10px;
        border: 1px solid var(--line-dark);
        background: #fff;
        color: var(--primary);
        font-size: 14px;
        font-weight: 600;
        transition: var(--transition);
    }
    .btn-outline:hover {
        border-color: var(--primary);
        background: rgba(47,111,237,.05);
        transform: translateY(-1px);
        box-shadow: var(--shadow-sm);
    }
    .btn-ghost {
        border: 1px solid transparent;
        background: transparent;
        color: var(--text);
        border-radius: 10px;
        transition: var(--transition);
        width: 40px;
        height: 40px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
    }
    .btn-ghost:hover { background: rgba(47,111,237,.08); color: var(--primary); }
    .search-field {
        height: 40px;
        border: 1px solid var(--line);
        border-radius: 999px;
        background: rgba(255,255,255,.86);
        padding-left: 14px;
        font-size: 14px;
        transition: border-color .2s ease;
    }
    .search-field:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(47,111,237,.12); }
    .search-field input { border: 0; outline: 0; background: transparent; width: 132px; color: var(--ink); font-size: 14px; }
    .search-field input::placeholder { color: #9AAEC4; }
    .search-field button {
        width: 32px;
        height: 32px;
        border: 0;
        border-radius: 999px;
        background: var(--primary);
        color: #fff;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        transition: var(--transition);
    }
    .search-field button:hover { background: var(--primary-dark); }
    .mobile-menu { display: none; }
    .mobile-menu.open { display: block; }
    .m-nav-link {
        display: block;
        padding: 12px 8px;
        font-size: 15px;
        font-weight: 500;
        color: var(--text);
        border-radius: 10px;
        transition: var(--transition);
    }
    .m-nav-link:hover, .m-nav-link.active { color: var(--primary); background: rgba(47,111,237,.06); }

    /* ========== 按钮 / 标签 / 辅助 ========== */
    .badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 5px 12px;
        border-radius: 999px;
        font-size: 13px;
        font-weight: 600;
        line-height: 1.2;
        white-space: nowrap;
    }
    .badge-blue { background: rgba(47,111,237,.10); color: #1D57D0; }
    .badge-teal { background: rgba(14,159,155,.12); color: #0C8A86; }
    .badge-amber { background: rgba(217,119,6,.13); color: #B25B08; }
    .tag-small { font-size: 12px; letter-spacing: .02em; }
    .text-kicker {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        color: var(--primary);
        font-size: 13px;
        font-weight: 700;
        letter-spacing: .10em;
        text-transform: uppercase;
    }
    .text-kicker::before {
        content: "";
        width: 24px;
        height: 2px;
        background: var(--primary);
        border-radius: 2px;
    }
    .section-heading { margin-bottom: 34px; }
    .section-heading h2 {
        font-size: 30px;
        font-weight: 800;
        line-height: 1.3;
        color: var(--ink);
        margin: 10px 0 8px;
        letter-spacing: -0.02em;
    }
    .section-heading p { max-width: 660px; font-size: 15px; color: var(--muted); }
    .section-y-pad { padding: 80px 0; }

    /* ========== 页面内页 Hero ========== */
    .page-hero {
        position: relative;
        padding: 168px 0 84px;
        background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
        overflow: hidden;
    }
    .page-hero::before {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(105deg, rgba(255,255,255,.98) 12%, rgba(245,248,252,.92) 42%, rgba(245,248,252,.62) 72%, rgba(245,248,252,.35));
    }
    .page-hero-content {
        position: relative;
        z-index: 2;
    }
    .crumb {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 8px;
        font-size: 14px;
        color: var(--muted);
        margin-bottom: 16px;
    }
    .crumb a { color: var(--muted); transition: var(--transition); }
    .crumb a:hover { color: var(--primary); }
    .crumb svg { width: 14px; height: 14px; }
    .page-hero h1 {
        font-size: clamp(32px, 4vw, 46px);
        line-height: 1.25;
        font-weight: 800;
        color: var(--ink);
        letter-spacing: -0.02em;
        margin: 0 0 14px;
    }
    .page-hero h1 .light-text { color: var(--muted); font-weight: 600; }
    .page-hero-description {
        max-width: 640px;
        font-size: 16px;
        color: var(--text);
        margin-bottom: 0;
    }
    .hero-note-row {
        display: flex;
        flex-wrap: wrap;
        gap: 16px;
        margin-top: 22px;
    }

    /* ========== 首页通用分类卡片区域 ========== */
    .block-section { padding: 84px 0; }
    .block-section.soft-bg { background: linear-gradient(180deg, #FFFFFF, #F2F6FC); }
    .block-section.border-line { border-bottom: 1px solid var(--line); }

    /* ========== 版本动态分类主体 ========== */
    .news-grid {
        display: grid;
        grid-template-columns: 1.25fr .9fr;
        gap: 26px;
        align-items: stretch;
    }
    .feature-card {
        background: var(--card-bg);
        border-radius: var(--radius-lg);
        border: 1px solid var(--line);
        box-shadow: var(--shadow-sm);
        overflow: hidden;
        transition: var(--transition);
    }
    .feature-card:hover {
        box-shadow: var(--shadow-lg);
        transform: translateY(-2px);
        border-color: #C9D6EA;
    }
    .feature-card .feature-media { position: relative; aspect-ratio: 16 / 9; background: #EAF0F7; }
    .feature-card .feature-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease; }
    .feature-card:hover .feature-media img { transform: scale(1.02); }
    .feature-card .cover-label {
        position: absolute;
        left: 16px;
        top: 16px;
        background: rgba(255,255,255,.92);
        color: var(--primary-dark);
        border-radius: 999px;
        padding: 6px 13px;
        font-size: 12px;
        font-weight: 700;
        box-shadow: 0 4px 14px rgba(23,32,51,.10);
    }
    .feature-card .feature-body { padding: 24px; }
    .feature-meta {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 14px;
        font-size: 13px;
        color: var(--muted);
        margin-bottom: 10px;
    }
    .feature-card h3 { font-size: 21px; line-height: 1.45; font-weight: 700; color: var(--ink); margin: 0 0 10px; }
    .feature-card h3 a { transition: var(--transition); }
    .feature-card h3 a:hover { color: var(--primary); }
    .feature-card p { margin: 0 0 18px; font-size: 15px; color: var(--text); }
    .side-list { display: flex; flex-direction: column; gap: 14px; }
    .side-item {
        display: flex;
        gap: 16px;
        background: #fff;
        border: 1px solid var(--line);
        border-radius: var(--radius);
        padding: 18px;
        transition: var(--transition);
        box-shadow: 0 1px 0 rgba(23,32,51,.02);
    }
    .side-item:hover {
        border-color: #BFD3FA;
        box-shadow: var(--shadow-lg);
        transform: translateY(-2px);
    }
    .side-item .side-date {
        flex-shrink: 0;
        width: 54px;
        height: 54px;
        border-radius: 14px;
        background: rgba(47,111,237,.10);
        color: var(--primary-dark);
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        font-weight: 700;
        font-size: 14px;
        line-height: 1.2;
    }
    .side-item .side-date small { font-size: 11px; font-weight: 500; color: var(--muted); }
    .side-item h3 {
        margin: 0 0 5px;
        font-size: 16px;
        line-height: 1.5;
        font-weight: 600;
        color: var(--ink);
    }
    .side-item h3 a { transition: var(--transition); }
    .side-item h3 a:hover { color: var(--primary); }
    .side-item p { margin: 0; color: var(--muted); font-size: 13.5px; }
    .side-badge-row { margin-top: 10px; display: flex; gap: 8px; flex-wrap: wrap; }

    /* ========== 两列长文 ========== */
    .duo-read-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }
    .read-card {
        background: #fff;
        border: 1px solid var(--line);
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow-sm);
        display: flex;
        flex-direction: column;
        transition: var(--transition);
    }
    .read-card:hover {
        box-shadow: var(--shadow-lg);
        transform: translateY(-2px);
    }
    .read-card .read-media { aspect-ratio: 16 / 8; overflow: hidden; background: #EAF0F7; }
    .read-card .read-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
    .read-card:hover .read-media img { transform: scale(1.03); }
    .read-card .read-body { padding: 26px; flex: 1; }
    .read-card .read-body h3 { font-size: 20px; margin: 10px 0 10px; font-weight: 700; color: var(--ink); line-height: 1.45; }
    .read-card .read-body p { margin: 0 0 16px; font-size: 14.5px; color: var(--text); }
    .read-more {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        color: var(--primary);
        font-weight: 600;
        font-size: 14px;
        transition: var(--transition);
    }
    .read-more:hover { color: var(--primary-dark); }
    .read-more svg { width: 15px; height: 15px; transition: transform .2s ease; }
    .read-more:hover svg { transform: translateX(4px); }

    /* ========== 会员专区 / 专属预览 ========== */
    .lock-wrapper {
        position: relative;
        z-index: 1;
        overflow: hidden;
        border-radius: var(--radius-lg);
    }
    .lock-wrapper .lock-panel {
        position: absolute;
        inset: 0;
        z-index: 3;
        background: rgba(255,255,255,.58);
        backdrop-filter: blur(3px);
        -webkit-backdrop-filter: blur(3px);
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .lock-card {
        max-width: 260px;
        text-align: center;
        border-radius: var(--radius);
        padding: 18px 20px;
        background: rgba(255,255,255,.92);
        border: 1px solid var(--line);
        box-shadow: var(--shadow-sm);
    }
    .lock-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 42px;
        height: 42px;
        background: rgba(217,119,6,.12);
        border-radius: 50%;
        color: var(--amber);
        margin-bottom: 8px;
    }
    .lock-card p { font-size: 14px; color: var(--text); margin-bottom: 12px; }
    .btn-lock {
        display: inline-flex;
        gap: 6px;
        background: var(--amber);
        color: #fff;
        padding: 9px 16px;
        font-size: 14px;
        font-weight: 700;
        border-radius: 10px;
        transition: var(--transition);
    }
    .btn-lock:hover { background: #B25B08; transform: translateY(-1px); }
    .member-split {
        display: grid;
        grid-template-columns: .92fr 1.08fr;
        gap: 24px;
    }
    .member-list-item {
        background: #fff;
        border: 1px solid var(--line);
        border-radius: var(--radius);
        padding: 20px 22px;
        margin-bottom: 12px;
        transition: var(--transition);
        display: flex;
        gap: 16px;
        align-items: flex-start;
    }
    .member-list-item:hover { box-shadow: var(--shadow-sm); border-color: #C9D6EA; }
    .member-list-item .item-arrow {
        margin-left: auto;
        color: var(--muted);
        font-size: 20px;
        line-height: 1.4;
        transition: var(--transition);
    }
    .member-list-item:hover .item-arrow { color: var(--primary); transform: translateX(3px); }

    /* ========== 对比表 ========== */
    .table-scroll-box {
        overflow-x: auto;
        border: 1px solid var(--line);
        border-radius: 16px;
        background: #fff;
        box-shadow: var(--shadow-sm);
    }
    .compare-table {
        width: 100%;
        min-width: 760px;
        border-collapse: collapse;
        font-size: 14px;
    }
    .compare-table th {
        background: #F7FAFF;
        border-bottom: 1px solid var(--line-dark);
        color: var(--ink);
        font-weight: 700;
        font-size: 15px;
        text-align: left;
        padding: 16px 18px;
    }
    .compare-table th .desc { display: block; font-size: 12px; font-weight: 400; margin-top: 3px; color: var(--muted); }
    .compare-table td {
        padding: 15px 18px;
        border-bottom: 1px solid #EEF2F7;
        color: var(--text);
        vertical-align: top;
    }
    .compare-table tr:last-child td { border-bottom: 0; }
    .compare-table td:first-child { font-weight: 600; color: var(--ink); }
    .col-vip-cell {
        border-left: 3px solid var(--teal);
        background: rgba(14,159,155,.04);
    }
    .vip-recommend {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        background: rgba(14,159,155,.13);
        color: #0C8A86;
        border-radius: 999px;
        padding: 3px 10px;
        font-size: 12px;
        font-weight: 700;
        vertical-align: middle;
        margin-left: 10px;
    }
    .check-mark { color: var(--teal); font-weight: 800; font-size: 16px; }
    .minus-mark { color: #AEBFD4; font-weight: 700; font-size: 16px; }
    .table-first-col { font-weight: 600; }

    /* ========== CTA ========== */
    .cta-band {
        border-radius: 20px;
        background: linear-gradient(120deg, rgba(47,111,237,.06), rgba(14,159,155,.05)), #fff;
        border: 1px solid var(--line);
        box-shadow: var(--shadow-sm);
        position: relative;
        overflow: hidden;
        padding: 44px 48px;
    }
    .cta-band .bg-symbol {
        position: absolute;
        right: -30px;
        top: -30px;
        color: rgba(47,111,237,.05);
        font-size: 170px;
        line-height: 1;
        user-select: none;
        pointer-events: none;
    }

    /* ========== FAQ ========== */
    .faq-list { max-width: 860px; }
    .faq-item {
        background: #fff;
        border: 1px solid var(--line);
        border-radius: 14px;
        margin-bottom: 12px;
        padding: 0 22px;
        transition: border-color .2s ease, box-shadow .2s ease;
    }
    .faq-item.open { box-shadow: var(--shadow-sm); border-color: #C9D6EA; }
    .faq-q {
        display: flex;
        align-items: center;
        gap: 14px;
        width: 100%;
        text-align: left;
        background: transparent;
        border: 0;
        padding: 18px 0;
        cursor: pointer;
        font-size: 16px;
        font-weight: 600;
        color: var(--ink);
    }
    .faq-q:hover { color: var(--primary); }
    .faq-icon {
        flex-shrink: 0;
        margin-left: auto;
        width: 22px;
        height: 22px;
        border-radius: 50%;
        border: 1px solid var(--line-dark);
        color: var(--muted);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        line-height: 1;
        transition: transform .25s ease, background .25s;
    }
    .faq-item.open .faq-icon {
        transform: rotate(45deg);
        background: var(--primary);
        color: #fff;
        border-color: var(--primary);
    }
    .faq-a {
        max-height: 0;
        overflow: hidden;
        transition: max-height .28s ease, padding .28s ease;
    }
    .faq-answer-inner {
        padding-bottom: 20px;
        font-size: 15px;
        color: var(--text);
        border-top: 1px dashed #E5EBF3;
        padding-top: 16px;
    }

    /* ========== 页脚 ========== */
    .footer-links { display: flex; flex-direction: column; gap: 10px; }
    .footer-links a {
        font-size: 14px;
        color: #667A96;
        transition: var(--transition);
    }
    .footer-links a:hover { color: var(--primary); }

    /* ========== 响应式 ========== */
    @media (max-width: 1023px) {
        .nav-desktop { display: none !important; }
        .search-field { display: none !important; }
        .page-hero { padding: 150px 0 66px; }
        .news-grid { grid-template-columns: 1fr; }
        .duo-read-grid { grid-template-columns: 1fr; }
        .member-split { grid-template-columns: 1fr; }
        .block-section { padding: 64px 0; }
        .section-y-pad { padding: 60px 0; }
    }
    @media (max-width: 767px) {
        .container-x { width: min(100% - 32px, 1200px); }
        .page-hero h1 { font-size: 29px; }
        .section-heading h2, .block-section h2 { font-size: 25px; }
        .cta-band { padding: 32px 22px; }
        .feature-card .feature-body { padding: 20px; }
        .side-item { padding: 15px; flex-direction: column; gap: 12px; }
        .side-item .side-date { width: 46px; height: 46px; }
    }
    @media (max-width: 520px) {
        .page-hero { padding-top: 136px; }
        .page-hero .hero-note-row, .breadcrumb { flex-wrap: wrap; }
        .block-section { padding: 52px 0; }
        .faq-item { padding: 0 16px; }
        .read-card .read-body { padding: 20px; }
    }

/* roulang page: article */
:root {
            --primary: #2F6FED;
            --primary-dark: #1D57D0;
            --teal: #0E9F9B;
            --amber: #D97706;
            --page: #F5F8FC;
            --card: #FFFFFF;
            --ink: #172033;
            --text: #3A4A62;
            --muted: #7590B0;
            --line: #E3E9F2;
            --line-dark: #D4DDE8;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 10px;
            --shadow-card: 0 1px 2px rgba(23, 32, 51, 0.04), 0 4px 16px rgba(23, 32, 51, 0.06);
            --shadow-hover: 0 12px 32px rgba(23, 32, 51, 0.10);
            --content-width: 1200px;
            --article-width: 760px;
            --space-section: 104px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
            font-size: 15px;
            line-height: 1.7;
            background: var(--page);
            color: var(--text);
        }

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

        a {
            color: inherit;
            text-decoration: none;
        }

        button,
        input {
            font-family: inherit;
        }

        .container-x {
            max-width: var(--content-width);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .container-narrow {
            max-width: var(--article-width);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .logo-dot {
            width: 40px;
            height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: linear-gradient(135deg, #2F6FED, #4E93FF);
            color: #fff;
            font-weight: 800;
            font-size: 20px;
            box-shadow: 0 6px 16px rgba(47, 111, 237, 0.24);
        }

        .glass-nav {
            position: fixed;
            left: 0;
            right: 0;
            top: 0;
            z-index: 60;
            background: rgba(255, 255, 255, 0.68);
            -webkit-backdrop-filter: blur(14px);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.55);
            transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .glass-nav.scrolled {
            background: rgba(255, 255, 255, 0.96);
            border-bottom: 1px solid var(--line);
            box-shadow: 0 4px 16px rgba(23, 32, 51, 0.06);
        }

        .nav-desktop {
            display: none !important;
            gap: 2px;
        }

        @media (min-width: 1024px) {
            .nav-desktop {
                display: flex !important;
            }
        }

        .nav-link {
            display: block;
            padding: 8px 15px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            transition: color 0.2s ease, background 0.2s ease;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(47, 111, 237, 0.06);
        }

        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(47, 111, 237, 0.08);
        }

        .search-field {
            display: flex;
            align-items: center;
            height: 40px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.82);
            border: 1px solid var(--line);
            padding: 0 8px 0 14px;
            transition: border 0.2s ease, box-shadow 0.2s ease;
        }

        .search-field:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(47, 111, 237, 0.12);
        }

        .search-field input {
            border: 0;
            outline: 0;
            background: transparent;
            font-size: 13px;
            color: var(--ink);
            width: 92px;
        }

        .search-field button {
            border: 0;
            background: var(--primary);
            color: #fff;
            width: 26px;
            height: 26px;
            border-radius: 999px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: background 0.2s ease;
        }

        .search-field button:hover {
            background: var(--primary-dark);
        }

        #mobileMenu {
            display: none;
        }

        #mobileMenu.open {
            display: block;
            max-height: 80vh;
            overflow-y: auto;
        }

        .mobile-nav-link {
            display: block;
            padding: 11px 12px;
            border-radius: 10px;
            color: var(--text);
            font-size: 15px;
            font-weight: 500;
            transition: background 0.2s ease, color 0.2s ease;
        }

        .mobile-nav-link:hover {
            background: rgba(47, 111, 237, 0.07);
            color: var(--primary);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 10px 22px;
            border: 0;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
            box-shadow: 0 8px 20px rgba(47, 111, 237, 0.16);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 10px 24px rgba(47, 111, 237, 0.22);
        }

        .btn-primary .arrow {
            display: inline-block;
            transition: transform 0.2s ease;
        }

        .btn-primary:hover .arrow {
            transform: translateX(4px);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 44px;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--line-dark);
            background: #fff;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            transition: border 0.2s ease, background 0.2s ease;
        }

        .btn-secondary:hover {
            border-color: var(--primary);
            background: rgba(47, 111, 237, 0.03);
        }

        .btn-ghost {
            border: 0;
            background: transparent;
            border-radius: 10px;
            cursor: pointer;
            color: var(--text);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: background 0.2s ease, color 0.2s ease;
        }

        .btn-ghost:hover {
            background: rgba(47, 111, 237, 0.06);
            color: var(--primary);
        }

        .article-page-top {
            padding-top: 136px;
            padding-bottom: 60px;
            background: linear-gradient(180deg, #EAF2FE 0%, rgba(234, 242, 254, 0.35) 60%, rgba(245, 248, 252, 0) 100%);
            border-bottom: 1px solid rgba(227, 233, 242, 0.6);
        }

        .breadcrumb-list {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--muted);
            margin: 0 0 26px;
            padding: 0;
            list-style: none;
        }

        .breadcrumb-list a {
            color: var(--muted);
            transition: color 0.2s ease;
        }

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

        .breadcrumb-list .current {
            color: var(--text);
            max-width: 460px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .article-title-line {
            margin: 0 0 18px;
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.01em;
            color: var(--ink);
        }

        .article-meta-line {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--muted);
        }

        .article-meta-line .dot {
            width: 3px;
            height: 3px;
            border-radius: 999px;
            background: #B9C8DE;
        }

        .article-meta-line strong {
            color: var(--ink);
            font-weight: 600;
        }

        .article-shell {
            padding: 52px 0 20px;
        }

        .article-content-card {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 44px clamp(22px, 5vw, 60px);
        }

        .article-content {
            color: var(--text);
        }

        .article-content p {
            margin: 0 0 22px;
            font-size: 15.5px;
            line-height: 1.9;
        }

        .article-content h2 {
            margin: 42px 0 16px;
            font-size: 24px;
            font-weight: 700;
            color: var(--ink);
            padding-top: 6px;
            border-left: 4px solid var(--primary);
            padding-left: 14px;
            line-height: 1.4;
        }

        .article-content h3 {
            margin: 30px 0 12px;
            font-size: 19px;
            font-weight: 700;
            color: var(--ink);
            line-height: 1.45;
        }

        .article-content ul,
        .article-content ol {
            margin: 0 0 24px;
            padding-left: 24px;
        }

        .article-content ul li,
        .article-content ol li {
            margin-bottom: 10px;
            padding-left: 4px;
            line-height: 1.85;
        }

        .article-content ul li::marker {
            color: var(--primary);
        }

        .article-content blockquote {
            margin: 28px 0;
            padding: 18px 22px;
            background: #F5F8FC;
            border-left: 4px solid var(--primary);
            border-radius: 0 12px 12px 0;
            color: var(--text);
        }

        .article-content img {
            border-radius: 12px;
            margin: 26px 0;
        }

        .article-content figcaption {
            font-size: 13px;
            color: var(--muted);
            text-align: center;
            margin-top: -16px;
        }

        .article-content a {
            color: var(--primary);
            font-weight: 500;
            border-bottom: 1px solid rgba(47, 111, 237, 0.22);
            transition: background 0.2s ease, color 0.2s ease;
        }

        .article-content a:hover {
            background: rgba(47, 111, 237, 0.06);
            border-bottom-color: var(--primary);
        }

        .member-strip-card {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            background: linear-gradient(135deg, #EFF5FF, #F8FBFF);
            border: 1px solid #D7E6FF;
            border-radius: 16px;
            padding: 24px 26px;
            margin: 40px 0 24px;
        }

        .member-strip-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--ink);
            margin: 0 0 6px;
        }

        .member-strip-desc {
            font-size: 14px;
            color: var(--muted);
            margin: 0;
            line-height: 1.7;
            max-width: 640px;
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            margin: 18px 0 38px;
        }

        .article-tags span {
            font-size: 13px;
            color: var(--muted);
            margin-right: 4px;
        }

        .article-tags a {
            display: inline-flex;
            align-items: center;
            min-height: 30px;
            padding: 4px 14px;
            background: #F1F5FB;
            border: 1px solid var(--line);
            border-radius: 999px;
            color: var(--text);
            font-size: 13px;
            transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
        }

        .article-tags a:hover {
            background: rgba(47, 111, 237, 0.08);
            color: var(--primary);
            border-color: rgba(47, 111, 237, 0.2);
        }

        .article-separator {
            border: 0;
            border-top: 1px solid var(--line);
            margin: 20px 0 44px;
        }

        .related-section {
            padding: 48px 0 20px;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.04em;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .section-title {
            font-size: clamp(24px, 3vw, 30px);
            font-weight: 800;
            color: var(--ink);
            line-height: 1.35;
            margin: 0 0 12px;
        }

        .section-desc {
            color: var(--muted);
            font-size: 15px;
            line-height: 1.8;
            margin: 0;
            max-width: 620px;
        }

        .related-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
            margin-top: 30px;
        }

        @media (min-width: 640px) {
            .related-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        .related-card {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 14px;
            overflow: hidden;
            box-shadow: 0 1px 2px rgba(23, 32, 51, 0.03);
            transition: box-shadow 0.24s ease, transform 0.24s ease;
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .related-thumb {
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: #EAF0F8;
        }

        .related-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

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

        .related-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .related-cat {
            font-size: 12px;
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 6px;
        }

        .related-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--ink);
            line-height: 1.5;
            margin: 0 0 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-title a {
            transition: color 0.2s ease;
        }

        .related-title a:hover {
            color: var(--primary);
        }

        .related-desc {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.7;
            margin: 0 0 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-meta {
            margin-top: auto;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            font-size: 12px;
            color: var(--muted);
        }

        .back-column {
            margin-top: 28px;
            display: flex;
            justify-content: flex-end;
        }

        .back-column a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(47, 111, 237, 0.06);
            transition: background 0.2s ease, transform 0.2s ease;
        }

        .back-column a:hover {
            background: rgba(47, 111, 237, 0.12);
            transform: translateX(-2px);
        }

        .faq-section {
            padding: 78px 0;
            background: #FBFDFF;
            border-top: 1px solid var(--line);
            margin-top: 64px;
        }

        .faq-list {
            max-width: 760px;
            margin: 34px auto 0;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 14px;
            overflow: hidden;
            transition: box-shadow 0.22s ease, border-color 0.22s ease;
        }

        .faq-item.open {
            border-color: rgba(47, 111, 237, 0.25);
            box-shadow: 0 8px 24px rgba(23, 32, 51, 0.06);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            border: 0;
            background: transparent;
            padding: 18px 22px;
            text-align: left;
            cursor: pointer;
            color: var(--ink);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.5;
            transition: color 0.2s ease;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            border-radius: 999px;
            background: #EDF3FB;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            transition: transform 0.28s ease, background 0.28s ease, color 0.28s ease;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.32s ease;
        }

        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 14.5px;
            line-height: 1.85;
            color: var(--text);
        }

        .not-found-section {
            padding: 180px 24px 120px;
        }

        .not-found-card {
            max-width: 640px;
            margin: 0 auto;
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 20px;
            box-shadow: var(--shadow-card);
            padding: 48px 36px;
            text-align: center;
        }

        .not-found-card h1 {
            font-size: 30px;
            font-weight: 800;
            color: var(--ink);
            margin: 0 0 14px;
        }

        .not-found-card p {
            color: var(--muted);
            line-height: 1.8;
            margin: 0 0 26px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: #667A96;
            transition: color 0.2s ease;
        }

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

        @media (max-width: 767px) {
            :root {
                --space-section: 64px;
            }

            .article-shell {
                padding: 32px 0 10px;
            }

            .article-content-card {
                padding: 28px 20px;
            }

            .member-strip-card {
                flex-direction: column;
                align-items: flex-start;
                padding: 20px;
            }

            .faq-section {
                padding: 56px 0;
                margin-top: 44px;
            }

            .related-section {
                padding: 28px 0 10px;
            }

            .not-found-section {
                padding: 150px 18px 80px;
            }

            .not-found-card {
                padding: 38px 22px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #2F6FED;
            --primary-deep: #1D57D0;
            --teal: #0E9F9B;
            --amber: #D97706;
            --bg: #F5F8FC;
            --white: #FFFFFF;
            --line: #E3E9F2;
            --ink: #172033;
            --text: #3A4A62;
            --muted: #7590B0;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 10px;
            --shadow-soft: 0 1px 2px rgba(23, 32, 51, 0.04), 0 4px 16px rgba(23, 32, 51, 0.06);
            --shadow-hover: 0 12px 32px rgba(23, 32, 51, 0.10);
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background: var(--bg);
            color: var(--text);
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
            font-size: 15px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
        }

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

        .container-x {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }

        section[id] {
            scroll-margin-top: 90px;
        }

        .glass-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 50;
            background: rgba(255, 255, 255, 0.68);
            border-bottom: 1px solid rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .glass-nav.scrolled {
            background: rgba(255, 255, 255, 0.96);
            border-color: var(--line);
            box-shadow: 0 4px 16px rgba(23, 32, 51, 0.06);
        }

        .logo-dot {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 11px;
            background: linear-gradient(135deg, #2F6FED 0%, #1D57D0 100%);
            color: #fff;
            font-weight: 800;
            font-size: 19px;
            box-shadow: 0 6px 14px rgba(47, 111, 237, 0.24);
            flex-shrink: 0;
        }

        .nav-desktop {
            align-items: center;
            gap: 34px;
            margin-left: 36px;
        }

        .nav-link {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            padding: 8px 2px;
            position: relative;
            white-space: nowrap;
            transition: color 0.2s ease;
        }

        .nav-link:hover {
            color: var(--primary);
        }

        .nav-link.active {
            color: var(--primary);
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
        }

        .search-field {
            align-items: center;
            background: #FFFFFF;
            border: 1px solid var(--line);
            border-radius: 999px;
            height: 40px;
            padding: 0 12px 0 15px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .search-field:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(47, 111, 237, 0.10);
        }

        .search-field input {
            width: 140px;
            border: 0;
            background: transparent;
            font-size: 13px;
            color: var(--ink);
        }

        .search-field input::placeholder {
            color: #9AABC2;
        }

        .search-field button {
            border: 0;
            background: transparent;
            color: var(--muted);
            cursor: pointer;
            padding: 4px;
        }

        .search-field button:hover {
            color: var(--primary);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 9px;
            background: var(--primary);
            color: #FFFFFF;
            border: 1px solid transparent;
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            border-radius: var(--radius-sm);
            padding: 12px 18px;
            cursor: pointer;
            transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
            box-shadow: 0 6px 14px rgba(47, 111, 237, 0.18);
        }

        .btn-primary:hover {
            background: var(--primary-deep);
            transform: translateY(-1px);
            box-shadow: 0 10px 22px rgba(29, 87, 208, 0.24);
        }

        .btn-primary .arrow {
            transition: transform 0.2s ease;
        }

        .btn-primary:hover .arrow {
            transform: translateX(4px);
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            border: 1px solid var(--line);
            color: var(--text);
            border-radius: var(--radius-sm);
            padding: 10px 14px;
            font-weight: 600;
            transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
        }

        .btn-ghost:hover {
            border-color: rgba(47, 111, 237, 0.4);
            color: var(--primary);
            background: rgba(47, 111, 237, 0.05);
        }

        .btn-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 600;
            transition: color 0.2s ease, gap 0.2s ease;
        }

        .btn-link:hover {
            color: var(--primary-deep);
        }

        .mobile-menu {
            display: none;
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-link {
            display: block;
            padding: 10px 12px;
            border-radius: 10px;
            font-weight: 600;
            color: var(--text);
            transition: background 0.2s ease, color 0.2s ease;
        }

        .mobile-link:hover,
        .mobile-link.active {
            background: rgba(47, 111, 237, 0.08);
            color: var(--primary);
        }

        .category-hero {
            position: relative;
            padding: 172px 0 122px;
            background: #FFFFFF;
            overflow: hidden;
        }

        .category-hero .hero-bg-image {
            position: absolute;
            inset: 0;
            background-image: url("/assets/images/backpic/back-2.png");
            background-size: cover;
            background-position: center;
            opacity: 0.55;
        }

        .category-hero .hero-bg-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(250, 252, 255, 0.98) 0%, rgba(247, 250, 255, 0.86) 48%, rgba(237, 244, 252, 0.55) 100%);
        }

        .breadcrumb-nav {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--muted);
            margin-bottom: 24px;
        }

        .breadcrumb-nav a {
            color: var(--muted);
            transition: color 0.2s ease;
        }

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

        .breadcrumb-nav span.current {
            color: var(--ink);
            font-weight: 600;
        }

        .hero-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(47, 111, 237, 0.10);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 16px;
        }

        .hero-title {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--ink);
            margin: 0 0 20px;
            letter-spacing: -0.02em;
        }

        .hero-subtitle {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text);
            max-width: 620px;
            margin: 0;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            margin-top: 30px;
        }

        .hero-glass-card {
            background: rgba(255, 255, 255, 0.56);
            border: 1px solid rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-radius: 22px;
            padding: 16px;
            box-shadow: 0 14px 38px rgba(23, 32, 51, 0.10);
            transform: rotate(1.2deg);
        }

        .hero-glass-card img {
            border-radius: 14px;
            width: 100%;
            height: 260px;
            object-fit: cover;
        }

        .toc-wrap {
            position: relative;
            z-index: 15;
        }

        .toc-panel {
            display: flex;
            gap: 8px;
            align-items: center;
            padding: 14px 16px;
            margin-top: -42px;
            background: rgba(255, 255, 255, 0.7);
            border: 1px solid rgba(255, 255, 255, 0.95);
            border-radius: 18px;
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            box-shadow: var(--shadow-soft);
            overflow-x: auto;
        }

        .toc-panel .toc-prepend {
            font-size: 13px;
            color: var(--muted);
            padding: 0 8px 0 4px;
            white-space: nowrap;
        }

        .toc-link {
            display: inline-flex;
            align-items: center;
            white-space: nowrap;
            padding: 9px 15px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 14px;
            color: var(--text);
            background: transparent;
            transition: background 0.2s ease, color 0.2s ease;
        }

        .toc-link:hover {
            background: rgba(47, 111, 237, 0.10);
            color: var(--primary);
        }

        .section-block {
            padding: 96px 0;
        }

        .block-white {
            background: #FFFFFF;
        }

        .block-deep {
            background: #EEF3F8;
        }

        .eyebrow-line {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            margin-bottom: 12px;
        }

        .eyebrow-line::before {
            content: "";
            width: 4px;
            height: 16px;
            border-radius: 4px;
            background: var(--primary);
        }

        .section-title {
            font-size: 30px;
            line-height: 1.35;
            font-weight: 800;
            color: var(--ink);
            margin: 0 0 18px;
            letter-spacing: -0.01em;
        }

        .section-lead {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text);
            max-width: 760px;
            margin: 0;
        }

        .intro-split {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            align-items: center;
            gap: 48px;
        }

        .intro-visual {
            grid-column: span 6;
            position: relative;
        }

        .intro-visual .figure-main {
            border-radius: 18px;
            overflow: hidden;
            box-shadow: var(--shadow-soft);
        }

        .intro-visual .figure-main img {
            width: 100%;
            height: 400px;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .intro-visual:hover .figure-main img {
            transform: scale(1.03);
        }

        .visual-chip {
            position: absolute;
            left: 18px;
            bottom: 18px;
            background: rgba(23, 32, 51, 0.78);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            color: #FFFFFF;
            font-size: 13px;
            font-weight: 600;
            padding: 8px 16px;
            border-radius: 999px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1px solid rgba(255, 255, 255, 0.22);
        }

        .intro-copy {
            grid-column: span 6;
            padding-left: 12px;
        }

        .intro-copy .section-title {
            font-size: 28px;
        }

        .intro-copy p {
            margin: 0 0 16px;
        }

        .check-list {
            list-style: none;
            padding: 0;
            margin: 26px 0 0;
            display: grid;
            gap: 14px;
        }

        .check-list li {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            background: #FFFFFF;
            border: 1px solid #EDF1F7;
            border-radius: 14px;
            padding: 14px 16px;
            box-shadow: 0 2px 10px rgba(23, 32, 51, 0.03);
        }

        .check-list .icon-check {
            flex: 0 0 auto;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: rgba(14, 159, 155, 0.12);
            color: var(--teal);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 800;
            margin-top: 3px;
        }

        .feature-row {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 44px;
            align-items: center;
            padding: 40px 0;
        }

        .feature-media {
            grid-column: span 6;
            border-radius: 18px;
            overflow: hidden;
            box-shadow: var(--shadow-soft);
            background: #F0F4F9;
        }

        .feature-media img {
            width: 100%;
            height: 340px;
            object-fit: cover;
            transition: transform 0.35s ease;
        }

        .feature-row:hover .feature-media img {
            transform: scale(1.03);
        }

        .feature-copy {
            grid-column: span 6;
        }

        .feature-tag {
            display: inline-flex;
            align-items: center;
            background: rgba(14, 159, 155, 0.10);
            color: var(--teal);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 999px;
            margin-bottom: 14px;
        }

        .feature-title {
            font-size: 23px;
            font-weight: 750;
            color: var(--ink);
            line-height: 1.4;
            margin: 0 0 12px;
        }

        .feature-copy p {
            color: var(--text);
            margin: 0 0 16px;
        }

        .feature-list {
            list-style: none;
            margin: 14px 0 0;
            padding: 0;
            display: grid;
            gap: 10px;
        }

        .feature-list li {
            display: flex;
            gap: 10px;
            position: relative;
            padding-left: 24px;
            line-height: 1.7;
        }

        .feature-list li::before {
            content: "";
            position: absolute;
            left: 2px;
            top: 12px;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--primary);
        }

        .member-locked-list {
            display: grid;
            gap: 16px;
        }

        .locked-item {
            position: relative;
            display: grid;
            grid-template-columns: 76px 1fr auto;
            gap: 16px;
            align-items: center;
            background: rgba(255, 255, 255, 0.86);
            border: 1px solid var(--line);
            border-radius: 14px;
            padding: 14px;
            overflow: hidden;
            transition: box-shadow 0.2s ease, transform 0.2s ease;
        }

        .locked-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .locked-thumb {
            width: 76px;
            height: 64px;
            border-radius: 10px;
            object-fit: cover;
            background: #E6EDF5;
        }

        .locked-title {
            font-weight: 700;
            color: var(--ink);
            font-size: 15px;
            line-height: 1.5;
        }

        .locked-desc {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.7;
            margin-top: 4px;
        }

        .lock-badge {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-size: 13px;
            font-weight: 700;
            color: #8A6A2B;
            background: rgba(217, 119, 6, 0.12);
            border: 1px solid rgba(217, 119, 6, 0.22);
            padding: 6px 12px;
            border-radius: 999px;
            white-space: nowrap;
        }

        .lock-icon {
            width: 18px;
            height: 18px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 5px;
            background: var(--amber);
            color: #fff;
            font-size: 11px;
        }

        .highlight-note {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            border-radius: 16px;
            background: rgba(14, 159, 155, 0.08);
            border: 1px solid rgba(14, 159, 155, 0.18);
            padding: 18px 20px;
            color: var(--text);
            margin-top: 22px;
        }

        .highlight-note .note-mark {
            flex: 0 0 auto;
            width: 30px;
            height: 30px;
            border-radius: 9px;
            background: var(--teal);
            color: #FFFFFF;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 15px;
        }

        .table-scroll {
            overflow-x: auto;
            border-radius: 16px;
            border: 1px solid var(--line);
            background: #FFFFFF;
            box-shadow: var(--shadow-soft);
        }

        .rate-table {
            width: 100%;
            min-width: 620px;
            border-collapse: separate;
            border-spacing: 0;
            text-align: left;
        }

        .rate-table th,
        .rate-table td {
            padding: 16px 18px;
            font-size: 14px;
            line-height: 1.6;
        }

        .rate-table thead th {
            background: #F5F8FC;
            color: var(--ink);
            font-weight: 700;
            border-bottom: 1px solid var(--line);
            white-space: nowrap;
        }

        .rate-table thead th:first-child {
            border-top-left-radius: 14px;
        }

        .rate-table thead th:last-child {
            border-top-right-radius: 14px;
        }

        .rate-table tbody td {
            border-bottom: 1px solid #EAF0F5;
            color: var(--text);
        }

        .rate-table tbody tr:last-child td {
            border-bottom: 0;
        }

        .rate-table .compare-col {
            text-align: center;
        }

        .rate-table .col-member {
            background: #F3F8FF;
            font-weight: 600;
            color: var(--ink);
        }

        .table-status {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 13px;
            font-weight: 600;
        }

        .table-icon-yes {
            color: var(--teal);
        }

        .table-icon-no {
            color: #B7C4D4;
        }

        .table-tip {
            font-size: 13px;
            color: var(--muted);
            margin-top: 12px;
        }

        .step-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 44px;
        }

        .step-card {
            position: relative;
            background: #FFFFFF;
            border: 1px solid #E8EEF5;
            border-radius: 16px;
            padding: 26px 20px 22px;
            box-shadow: var(--shadow-soft);
            transition: box-shadow 0.2s ease, transform 0.2s ease;
        }

        .step-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .step-num {
            font-size: 34px;
            line-height: 1;
            font-weight: 800;
            color: #C6D2E2;
            margin-bottom: 14px;
            letter-spacing: -0.03em;
        }

        .step-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--ink);
            margin: 0 0 8px;
        }

        .step-card p {
            font-size: 14px;
            color: var(--text);
            line-height: 1.75;
            margin: 0;
        }

        .faq-group details {
            border: 1px solid var(--line);
            border-radius: 14px;
            background: #FFFFFF;
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .faq-group details[open] {
            border-color: rgba(47, 111, 237, 0.3);
            box-shadow: 0 8px 24px rgba(23, 32, 51, 0.05);
        }

        .faq-group summary {
            list-style: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            padding: 18px 20px;
            font-weight: 700;
            color: var(--ink);
            line-height: 1.5;
            user-select: none;
        }

        .faq-group summary::-webkit-details-marker {
            display: none;
        }

        .faq-group .faq-icon {
            flex: 0 0 auto;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid #CBD6E4;
            color: var(--muted);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 400;
            transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
        }

        .faq-group details[open] .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            border-color: var(--primary);
            color: #FFFFFF;
        }

        .faq-group .faq-answer {
            padding: 0 20px 20px;
            color: var(--text);
            line-height: 1.9;
        }

        .faq-group .faq-answer p {
            margin: 0;
        }

        .cta-band {
            position: relative;
            border-radius: 28px;
            padding: 64px;
            overflow: hidden;
            background: linear-gradient(120deg, #EFF5FF 0%, #FFFFFF 52%, #EAF7F5 100%);
            border: 1px solid var(--line);
            box-shadow: var(--shadow-soft);
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
        }

        .cta-band .cta-title {
            font-size: 30px;
            font-weight: 800;
            color: var(--ink);
            line-height: 1.35;
            margin: 0 0 14px;
        }

        .cta-band p {
            margin: 0 0 24px;
            font-size: 16px;
            max-width: 560px;
        }

        .cta-relative-visual {
            border-radius: 18px;
            overflow: hidden;
            box-shadow: 0 8px 26px rgba(23, 32, 51, 0.08);
        }

        .footer-links {
            display: grid;
            gap: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: #667A96;
            transition: color 0.2s ease;
        }

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

        @media (min-width: 1280px) {
            .search-field {
                display: flex;
            }
        }

        @media (max-width: 1279px) {
            .search-field {
                display: none;
            }
        }

        @media (max-width: 1023px) {
            .nav-desktop {
                display: none;
            }

            .nav-mobile-trigger {
                display: inline-flex;
            }

            .mobile-menu {
                display: none;
            }

            .mobile-menu.open {
                display: block;
            }

            .hero-title {
                font-size: 36px;
            }

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

            .step-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .cta-band {
                grid-template-columns: 1fr;
                padding: 40px;
            }

            .cta-relative-visual {
                display: none;
            }
        }

        @media (min-width: 1024px) {
            .nav-mobile-trigger {
                display: none;
            }

            .mobile-menu {
                display: none !important;
            }
        }

        @media (max-width: 767px) {
            .container-x {
                padding: 0 20px;
            }

            .category-hero {
                padding: 132px 0 96px;
            }

            .hero-title {
                font-size: 30px;
            }

            .hero-subtitle {
                font-size: 16px;
            }

            .hero-glass-card {
                margin-top: 26px;
                transform: none;
            }

            .hero-glass-card img {
                height: 200px;
            }

            .intro-split {
                display: block;
            }

            .intro-visual .figure-main img {
                height: 230px;
            }

            .intro-copy {
                padding-left: 0;
                margin-top: 34px;
            }

            .feature-row {
                display: block;
                padding: 24px 0;
            }

            .feature-media {
                margin-bottom: 22px;
            }

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

            .section-title {
                font-size: 24px;
            }

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

            .locked-item {
                grid-template-columns: 64px 1fr;
            }

            .locked-thumb {
                width: 64px;
                height: 60px;
            }

            .lock-badge {
                grid-column: span 2;
                justify-content: center;
                width: 100%;
            }

            .step-grid {
                grid-template-columns: 1fr;
            }

            .cta-band {
                padding: 30px 22px;
                border-radius: 20px;
            }

            .cta-band .cta-title {
                font-size: 24px;
            }

            .table-status {
                font-size: 12px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #2F6FED;
            --primary-dark: #1D57D0;
            --teal: #0E9F9B;
            --amber: #D97706;
            --bg: #F5F8FC;
            --card: #FFFFFF;
            --line: #E3E9F2;
            --line-strong: #D4DDE8;
            --ink: #172033;
            --body: #3A4A62;
            --muted: #7590B0;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-btn: 10px;
            --shadow-sm: 0 1px 2px rgba(23, 32, 51, .04), 0 4px 16px rgba(23, 32, 51, .06);
            --shadow-hover: 0 12px 32px rgba(23, 32, 51, .10);
            --container: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
            background: var(--bg);
            color: var(--body);
            font-size: 16px;
            line-height: 1.85;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        ul,
        ol {
            list-style: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        input,
        button {
            font-family: inherit;
            font-size: 14px;
            outline: none;
        }
        button {
            cursor: pointer;
            background: none;
            border: none;
            color: inherit;
        }
        .container-x {
            max-width: var(--container);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section-pad {
            padding: 96px 0;
        }
        ::selection {
            background: #D9E7FF;
            color: var(--ink);
        }

        .glass-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 70;
            background: rgba(255, 255, 255, 0.68);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(227, 233, 242, 0.82);
            transition: background .25s ease, box-shadow .25s ease, border-color .25s ease;
        }
        .glass-nav.scrolled {
            background: rgba(255, 255, 255, 0.96);
            box-shadow: 0 4px 16px rgba(23, 32, 51, .06);
            border-color: var(--line);
        }
        .logo-dot {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 19px;
            flex: none;
            box-shadow: 0 6px 16px rgba(47, 111, 237, .22);
        }
        .nav-desktop {
            gap: 4px;
            margin-left: 30px;
            margin-right: 16px;
        }
        .nav-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            height: 40px;
            padding: 0 14px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 500;
            color: #3A4A62;
            transition: color .2s ease, background .2s ease;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
            background: rgba(47, 111, 237, .06);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(47, 111, 237, .07);
        }
        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            border-radius: 99px;
            background: var(--primary);
        }
        .mobile-menu {
            display: none;
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-nav-link {
            display: block;
            padding: 12px 10px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 500;
            color: var(--body);
            transition: all .2s ease;
        }
        .mobile-nav-link:hover,
        .mobile-nav-link.active {
            color: var(--primary);
            background: #EDF4FF;
        }

        .search-field {
            display: flex;
            align-items: center;
            width: 218px;
            height: 40px;
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 999px;
            padding: 0 10px 0 14px;
            transition: border .2s ease, box-shadow .2s ease;
        }
        .search-field:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(47, 111, 237, .14);
        }
        .search-field input {
            flex: 1;
            min-width: 0;
            background: transparent;
            border: none;
            font-size: 13px;
            color: var(--ink);
        }
        .search-field button {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: background .2s ease;
        }
        .search-field button:hover {
            background: #EAF1FE;
        }
        .btn-primary,
        .btn-ghost,
        .btn-white {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            height: 44px;
            padding: 0 20px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all .22s ease;
            border: 1px solid transparent;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 16px rgba(47, 111, 237, .22);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 22px rgba(29, 87, 208, .24);
        }
        .btn-primary .arrow,
        .btn-white .arrow {
            display: inline-block;
            transition: transform .22s ease;
        }
        .btn-primary:hover .arrow,
        .btn-white:hover .arrow {
            transform: translateX(4px);
        }
        .btn-ghost {
            background: #fff;
            color: var(--primary);
            border-color: var(--line);
        }
        .btn-ghost:hover {
            border-color: var(--primary);
            background: #F4F8FF;
            color: var(--primary-dark);
        }
        .btn-white {
            background: #fff;
            color: var(--primary-dark);
            box-shadow: 0 8px 24px rgba(23, 32, 51, .08);
        }
        .btn-white:hover {
            background: #F0F6FF;
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(23, 32, 51, .12);
        }

        .inner-hero {
            background-size: cover;
            background-position: center;
            padding: 132px 0 48px;
            border-bottom: 1px solid var(--line);
        }
        .hero-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--muted);
            margin-bottom: 16px;
        }
        .hero-breadcrumb a {
            color: var(--primary);
        }
        .hero-breadcrumb a:hover {
            text-decoration: underline;
        }
        .hero-kicker {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #EAF1FE;
            color: var(--primary);
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
        }
        .hero-title {
            font-size: 42px;
            line-height: 1.25;
            font-weight: 800;
            color: var(--ink);
            margin-top: 18px;
            letter-spacing: -0.02em;
        }
        .hero-sub {
            margin-top: 18px;
            max-width: 560px;
            color: var(--body);
            font-size: 16px;
            line-height: 1.9;
        }
        .hero-art {
            border-radius: 20px;
            overflow: hidden;
            border: 1px solid #fff;
            box-shadow: 0 16px 44px rgba(23, 32, 51, .12);
            background: #fff;
        }
        .hero-art img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .anchor-menu-row {
            margin-top: 24px;
        }
        .hero-anchors {
            display: flex;
            gap: 6px;
            padding: 10px;
            background: rgba(255, 255, 255, .55);
            border: 1px solid rgba(255, 255, 255, .8);
            box-shadow: var(--shadow-sm);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: 999px;
            max-width: 660px;
            flex-wrap: wrap;
        }
        .anchor-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 38px;
            padding: 0 16px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: var(--body);
            transition: all .2s ease;
        }
        .anchor-btn:hover,
        .anchor-btn.active {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 4px 12px rgba(23, 32, 51, .06);
        }

        .section-title-wrap {
            margin-bottom: 12px;
        }
        .section-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .section-kicker .bar {
            width: 18px;
            height: 2px;
            background: var(--primary);
            border-radius: 99px;
        }
        .section-title {
            font-size: 30px;
            line-height: 1.35;
            font-weight: 800;
            color: var(--ink);
            letter-spacing: -0.01em;
        }
        .section-lead {
            color: var(--muted);
            max-width: 720px;
            font-size: 15px;
            margin-top: 10px;
        }
        .visual-frame {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--line);
            box-shadow: var(--shadow-sm);
            position: relative;
            background: #fff;
        }
        .visual-frame .frame-badge {
            position: absolute;
            bottom: 14px;
            left: 14px;
            background: rgba(23, 32, 51, .72);
            color: #fff;
            font-size: 13px;
            padding: 6px 12px;
            border-radius: 999px;
            backdrop-filter: blur(6px);
        }

        .con-list {
            display: grid;
            gap: 14px;
        }
        .con-point {
            display: flex;
            gap: 14px;
            padding: 18px;
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: transform .2s ease, box-shadow .2s ease;
        }
        .con-point:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .con-point i {
            flex: none;
            width: 42px;
            height: 42px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: #EAF1FE;
            color: var(--primary);
            border-radius: 12px;
            font-size: 18px;
        }
        .con-point h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--ink);
        }
        .con-point p {
            color: var(--muted);
            font-size: 14px;
            line-height: 1.75;
        }

        .icon-card {
            padding: 26px 22px;
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            transition: all .25s ease;
            height: 100%;
        }
        .icon-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .icon-wrap {
            width: 52px;
            height: 52px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 14px;
            background: #EAF1FE;
            color: var(--primary);
            font-size: 20px;
            margin-bottom: 18px;
        }
        .icon-card:nth-child(2) .icon-wrap {
            background: #E3F6F4;
            color: var(--teal);
        }
        .icon-card:nth-child(3) .icon-wrap {
            background: #FCF0DF;
            color: var(--amber);
        }
        .icon-card:nth-child(4) .icon-wrap {
            background: #EEF0FF;
            color: #4F5BD5;
        }
        .icon-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 8px;
        }
        .icon-card p {
            color: var(--muted);
            font-size: 14px;
            line-height: 1.8;
        }

        .resource-wrap {
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            background: #fff;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .resource-row {
            display: grid;
            grid-template-columns: 76px 1fr auto;
            gap: 22px;
            align-items: center;
            padding: 26px 28px;
            border-bottom: 1px solid #EDF1F7;
            transition: background .2s ease;
        }
        .resource-row:last-child {
            border-bottom: none;
        }
        .resource-row:hover {
            background: #F8FBFF;
        }
        .resource-num {
            font-size: 30px;
            font-weight: 800;
            letter-spacing: -0.04em;
            color: #C5D4EA;
            line-height: 1;
        }
        .resource-title {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .resource-title h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--ink);
            line-height: 1.5;
        }
        .resource-title h3:hover {
            color: var(--primary);
        }
        .resource-desc {
            color: var(--muted);
            font-size: 14px;
            line-height: 1.8;
            margin-top: 6px;
            max-width: 620px;
        }
        .tag-vip {
            display: inline-flex;
            align-items: center;
            background: #FCF0DF;
            color: var(--amber);
            font-size: 12px;
            font-weight: 600;
            padding: 2px 8px;
            border-radius: 999px;
            white-space: nowrap;
        }
        .resource-meta {
            text-align: right;
            min-width: 124px;
        }
        .resource-time {
            display: block;
            color: var(--muted);
            font-size: 13px;
        }
        .resource-link {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            margin-top: 6px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 500;
            transition: gap .2s ease;
        }
        .resource-link:hover {
            gap: 9px;
        }

        .compare-scroll {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 14px;
            box-shadow: var(--shadow-sm);
            overflow-x: auto;
        }
        .member-table {
            width: 100%;
            min-width: 680px;
            border-collapse: collapse;
            font-size: 14px;
            text-align: center;
        }
        .member-table th,
        .member-table td {
            padding: 16px 16px;
            border-bottom: 1px solid #EAEFF6;
        }
        .member-table thead th {
            background: #F4F8FC;
            color: var(--ink);
            font-weight: 700;
        }
        .member-table th:first-child,
        .member-table td:first-child {
            text-align: left;
            padding-left: 24px;
            color: var(--ink);
            font-weight: 600;
        }
        .member-table td:first-child {
            color: var(--body);
            font-weight: 400;
        }
        .member-table .active-col {
            background: #F0F9F9;
        }
        .member-table thead .active-col {
            border-top: 4px solid var(--teal);
        }
        .member-table .rec-pill {
            display: inline-flex;
            background: var(--teal);
            color: #fff;
            font-size: 11px;
            font-weight: 600;
            padding: 1px 8px 2px;
            border-radius: 999px;
            margin-left: 6px;
        }
        .member-table i.fa-circle-check {
            color: #0E9F9B;
            font-size: 17px;
        }
        .member-table i.fa-circle-minus {
            color: #B9C5D6;
            font-size: 16px;
        }
        .compare-note {
            color: var(--muted);
            font-size: 13px;
            margin-top: 14px;
        }

        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--line);
            background: #fff;
            border-radius: 14px;
            box-shadow: var(--shadow-sm);
            padding: 0;
            transition: box-shadow .2s ease;
        }
        .faq-item + .faq-item {
            margin-top: 14px;
        }
        .faq-item.open {
            box-shadow: var(--shadow-hover);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
            text-align: left;
            padding: 20px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            border-radius: 14px;
        }
        .faq-icon {
            flex: none;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            border: 1px solid var(--line-strong);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 13px;
            transition: transform .3s ease, background .2s ease, color .2s ease;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .3s ease;
            padding: 0 22px;
            color: var(--body);
            font-size: 15px;
            line-height: 1.85;
        }
        .faq-answer p {
            padding-bottom: 20px;
        }

        .cta-panel {
            position: relative;
            border-radius: 22px;
            border: 1px solid #DCE7FD;
            background: linear-gradient(135deg, #E7F0FF 0%, #F8FBFF 100%);
            overflow: hidden;
            padding: 48px 40px 54px;
            text-align: center;
        }
        .cta-panel::before {
            content: "";
            position: absolute;
            width: 410px;
            height: 410px;
            border-radius: 50%;
            background: rgba(47, 111, 237, .08);
            top: -240px;
            left: -100px;
            pointer-events: none;
        }
        .cta-panel h2 {
            position: relative;
            font-size: 30px;
            color: var(--ink);
            font-weight: 800;
            line-height: 1.35;
            letter-spacing: -0.01em;
        }
        .cta-panel p {
            position: relative;
            color: var(--body);
            max-width: 640px;
            margin: 14px auto 24px;
            font-size: 15px;
            line-height: 1.9;
        }

        footer {
            background: #EEF3F8;
            border-top: 1px solid var(--line);
            color: var(--body);
        }
        .footer-links {
            display: grid;
            gap: 8px;
            font-size: 14px;
        }
        .footer-links a {
            color: var(--body);
            transition: color .2s ease, transform .2s ease;
            display: inline-block;
        }
        .footer-links a:hover {
            color: var(--primary);
            transform: translateX(3px);
        }

        @media (max-width: 1023px) {
            .nav-desktop {
                display: none !important;
            }
            .hero-anchors {
                max-width: 100%;
            }
            .section-pad {
                padding: 72px 0;
            }
        }
        @media (max-width: 767px) {
            .container-x {
                padding-left: 18px;
                padding-right: 18px;
            }
            .inner-hero {
                padding: 112px 0 34px;
            }
            .hero-title {
                font-size: 32px;
            }
            .section-title {
                font-size: 25px;
            }
            .section-pad {
                padding: 56px 0;
            }
            .resource-row {
                grid-template-columns: 1fr;
                gap: 14px;
                padding: 22px 20px;
            }
            .resource-num {
                font-size: 24px;
            }
            .resource-meta {
                text-align: left;
                display: flex;
                align-items: center;
                gap: 18px;
                min-width: 0;
            }
            .resource-link {
                margin-top: 0;
                margin-left: auto;
            }
            .cta-panel {
                padding: 38px 20px 42px;
            }
            .cta-panel h2 {
                font-size: 25px;
            }
        }