/* roulang page: index */
:root {
        --bg: #F5F3EC;
        --surface: #FFFFFF;
        --ink: #131410;
        --muted: #6C6B64;
        --line: #DDD8CB;
        --accent: #C9ED3C;
        --accent-2: #D7FA4A;
        --dark: #151610;
        --dark-surface: #1E2019;
        --alert: #FF5233;
        --radius: 12px;
        --shadow: 0 18px 42px rgba(19, 20, 16, .08);
    }

    * {
        box-sizing: border-box;
    }

    html {
        scroll-behavior: smooth;
    }

    body {
        margin: 0;
        font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
        background: var(--bg);
        color: var(--ink);
        line-height: 1.7;
        -webkit-font-smoothing: antialiased;
        overflow-x: hidden;
    }

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

    a {
        color: inherit;
        text-decoration: none;
        transition: color .25s ease, background .25s ease, border-color .25s ease, box-shadow .25s ease, transform .25s ease;
    }

    button {
        font: inherit;
        cursor: pointer;
        border: 0;
    }

    .container-x {
        max-width: 1200px;
        margin: 0 auto;
        padding-left: 24px;
        padding-right: 24px;
    }

    .topbar {
        background: var(--dark);
        color: rgba(245, 243, 236, .86);
        font-size: 13px;
        min-height: 34px;
    }

    .topbar-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        min-height: 34px;
        gap: 16px;
    }

    .topbar-left {
        display: flex;
        align-items: center;
        gap: 8px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .topbar-left .status-dot {
        width: 6px;
        height: 6px;
        border-radius: 50%;
        background: var(--accent);
        flex: 0 0 auto;
        box-shadow: 0 0 0 3px rgba(201, 237, 60, .16);
    }

    .topbar-links {
        display: flex;
        align-items: center;
        gap: 14px;
        flex-shrink: 0;
    }

    .topbar-links a {
        color: rgba(245, 243, 236, .78);
        border-bottom: 1px solid transparent;
        padding: 2px 0;
    }

    .topbar-links a:hover {
        color: var(--accent);
        border-color: rgba(201, 237, 60, .6);
    }

    .main-header {
        position: sticky;
        top: 0;
        z-index: 60;
        background: rgba(245, 243, 236, .9);
        -webkit-backdrop-filter: blur(12px) saturate(1.2);
        backdrop-filter: blur(12px) saturate(1.2);
        border-bottom: 1px solid var(--line);
    }

    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 28px;
        min-height: 68px;
    }

    .brand-lock {
        display: flex;
        flex-direction: column;
        line-height: 1.15;
        flex-shrink: 0;
    }

    .brand-lock .brand-name {
        font-size: 21px;
        font-weight: 800;
        letter-spacing: .02em;
        color: var(--ink);
    }

    .brand-lock .brand-sub {
        font-size: 11px;
        color: var(--muted);
        margin-top: 4px;
        font-weight: 500;
        letter-spacing: .06em;
    }

    .desktop-nav {
        display: flex;
        align-items: center;
        gap: 2px;
        margin-left: auto;
    }

    .nav-item {
        position: relative;
        display: inline-flex;
        align-items: center;
        min-height: 40px;
        padding: 0 14px;
        font-size: 15px;
        font-weight: 600;
        color: #3c3b37;
        border-radius: 8px;
    }

    .nav-item:hover {
        color: var(--ink);
        background: rgba(221, 216, 203, .28);
    }

    .nav-item.active {
        color: var(--ink);
    }

    .nav-item.active::after {
        content: '';
        position: absolute;
        left: 14px;
        right: 14px;
        bottom: 4px;
        height: 3px;
        border-radius: 99px;
        background: var(--alert);
    }

    .header-actions {
        display: flex;
        align-items: center;
        gap: 10px;
        margin-left: 4px;
    }

    .btn-nav {
        margin-left: 4px;
    }

    .mobile-toggle {
        display: none;
        width: 40px;
        height: 40px;
        align-items: center;
        justify-content: center;
        background: transparent;
        border: 1px solid var(--line);
        border-radius: 10px;
    }

    .mobile-toggle span {
        position: relative;
        display: block;
        width: 18px;
        height: 2px;
        background: var(--ink);
        transition: all .3s ease;
    }

    .mobile-toggle span::before,
    .mobile-toggle span::after {
        content: '';
        position: absolute;
        left: 0;
        width: 18px;
        height: 2px;
        background: var(--ink);
        transition: transform .3s ease;
    }

    .mobile-toggle span::before {
        top: -6px;
    }

    .mobile-toggle span::after {
        top: 6px;
    }

    .mobile-nav {
        display: none;
        background: var(--surface);
        border-top: 1px solid var(--line);
        border-bottom: 1px solid var(--line);
        padding: 18px 0 24px;
    }

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

    .mobile-nav a {
        display: block;
        font-size: 16px;
        font-weight: 600;
        padding: 12px 0;
        border-bottom: 1px solid rgba(221, 216, 203, .45);
        border-radius: 0;
        color: var(--ink);
    }

    .mobile-nav a.active {
        color: var(--accent);
    }

    .mobile-nav .mobile-cta {
        margin-top: 16px;
        display: inline-block;
        border: 0;
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        min-height: 50px;
        padding: 0 26px;
        border-radius: 10px;
        font-size: 15px;
        font-weight: 700;
        line-height: 1;
        white-space: nowrap;
        border: 1px solid transparent;
        transition: all .28s cubic-bezier(.2, .8, .25, 1);
    }

    .btn-sm {
        min-height: 38px;
        padding: 0 16px;
        font-size: 14px;
        border-radius: 8px;
    }

    .btn-lg {
        min-height: 54px;
        padding: 0 30px;
        font-size: 16px;
        border-radius: 11px;
    }

    .btn-primary {
        background: var(--accent);
        color: var(--ink);
        border-color: var(--accent);
    }

    .btn-primary:hover {
        background: var(--accent-2);
        border-color: var(--accent-2);
        transform: translateY(-2px);
        box-shadow: 0 12px 28px rgba(201, 237, 60, .25);
    }

    .btn-ink {
        background: var(--ink);
        color: var(--surface);
        border-color: var(--ink);
    }

    .btn-ink:hover {
        background: transparent;
        color: var(--ink);
        transform: translateY(-2px);
    }

    .btn-ghost {
        background: transparent;
        color: var(--ink);
        border-color: var(--ink);
    }

    .btn-ghost:hover {
        background: var(--ink);
        color: var(--surface);
        transform: translateY(-2px);
        box-shadow: var(--shadow);
    }

    .btn-light-ghost {
        background: transparent;
        color: #f5f3ec;
        border-color: rgba(245, 243, 236, .7);
    }

    .btn-light-ghost:hover {
        background: rgba(245, 243, 236, .1);
        color: var(--accent);
        border-color: var(--accent);
    }

    .btn-plain {
        background: transparent;
        color: var(--ink);
        padding: 0 8px;
        font-size: 15px;
        font-weight: 600;
        border-bottom: 2px solid var(--accent);
        min-height: 38px;
        border-radius: 0;
    }

    .btn-plain:hover {
        color: #5b5a4f;
        border-color: var(--ink);
    }

    .hero-intro {
        padding: 76px 0 92px;
        background:
            radial-gradient(ellipse at 80% 10%, rgba(201, 237, 60, .18), transparent 52%),
            var(--bg);
        border-bottom: 1px solid var(--line);
    }

    .hero-grid {
        display: grid;
        grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
        gap: 64px;
        align-items: center;
    }

    .eyebrow {
        display: inline-flex;
        align-items: center;
        gap: 9px;
        min-height: 28px;
        padding: 0 13px;
        border: 1px solid rgba(19, 20, 16, .14);
        border-radius: 999px;
        font-size: 13px;
        font-weight: 600;
        color: #46453f;
        background: rgba(255, 255, 255, .5);
    }

    .eyebrow-red {
        width: 7px;
        height: 7px;
        border-radius: 50%;
        background: var(--alert);
        box-shadow: 0 0 0 4px rgba(255, 82, 51, .13);
    }

    .hero-copy h1 {
        font-size: clamp(38px, 5.4vw, 60px);
        line-height: 1.16;
        font-weight: 800;
        letter-spacing: .01em;
        margin: 24px 0 0;
    }

    .h1-bottom {
        display: block;
        color: #30302b;
    }

    .hero-sub {
        margin-top: 26px;
        max-width: 480px;
        font-size: 18px;
        line-height: 1.8;
        color: var(--muted);
    }

    .hero-actions {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 16px;
        margin-top: 34px;
    }

    .hero-info-strip {
        display: flex;
        flex-wrap: wrap;
        gap: 14px 26px;
        margin-top: 42px;
        padding-top: 18px;
        border-top: 1px solid var(--line);
        font-size: 13px;
        color: #6b6960;
    }

    .hero-info-strip span {
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }

    .hero-info-strip i {
        width: 5px;
        height: 5px;
        border-radius: 50%;
        background: var(--alert);
    }

    .hero-visual {
        position: relative;
        margin: 0;
    }

    .hero-visual-main {
        border-radius: 14px;
        border: 2px solid var(--ink);
        overflow: hidden;
        background: var(--surface);
        aspect-ratio: 4 / 3;
        box-shadow: 18px 22px 0 rgba(19, 20, 16, .06);
    }

    .hero-visual-main img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .hero-visual-label {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        margin-top: 20px;
    }

    .hero-visual-label .tag-chip-inline {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        border: 1px solid var(--line);
        background: var(--surface);
        border-radius: 999px;
        padding: 7px 14px;
        font-size: 13px;
    }

    .hero-visual-label small {
        color: var(--muted);
        font-size: 13px;
    }

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

    .section-white {
        background: var(--surface);
        border-bottom: 1px solid var(--line);
    }

    .section-label {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        color: var(--muted);
        font-size: 13px;
        font-weight: 600;
        letter-spacing: .06em;
        text-transform: none;
        margin-bottom: 14px;
    }

    .section-label::before {
        content: '';
        width: 20px;
        height: 2px;
        background: var(--alert);
    }

    .section-head {
        display: flex;
        flex-direction: column;
        gap: 10px;
        margin-bottom: 44px;
    }

    .section-head h2 {
        font-size: clamp(28px, 3.4vw, 38px);
        line-height: 1.2;
        font-weight: 800;
        margin: 0;
    }

    .section-head p {
        color: var(--muted);
        max-width: 520px;
        margin: 8px 0 0;
        font-size: 16px;
        line-height: 1.8;
    }

    .section-head.split-head {
        flex-direction: row;
        justify-content: space-between;
        align-items: flex-end;
        gap: 36px;
    }

    .section-head.split-head p {
        max-width: 440px;
        margin: 0 0 2px;
    }

    .table-scroll {
        overflow-x: auto;
    }

    .compare-table {
        width: 100%;
        border-collapse: collapse;
        font-size: 15px;
        background: var(--surface);
        border: 1px solid var(--line);
        border-radius: var(--radius);
        overflow: hidden;
        min-width: 760px;
    }

    .compare-table th {
        text-align: center;
        padding: 22px 14px 18px;
        font-size: 16px;
        font-weight: 800;
        vertical-align: top;
        background: #faf8f2;
        border-bottom: 1px solid var(--line);
    }

    .compare-table th .badge-table {
        display: inline-flex;
        margin-top: 6px;
        font-size: 12px;
        color: var(--ink);
        background: var(--accent);
        padding: 3px 11px;
        border-radius: 999px;
        font-weight: 700;
    }

    .compare-table th.recommend-col {
        background: var(--accent);
        position: relative;
    }

    .compare-table th.recommend-col .badge-table {
        background: var(--ink);
        color: var(--surface);
    }

    .compare-table td {
        padding: 18px 16px;
        border-bottom: 1px solid var(--line);
        text-align: center;
        font-size: 15px;
        color: #4a4944;
    }

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

    .compare-table .feature-label {
        text-align: left;
        font-weight: 700;
        color: var(--ink);
        background: #faf9f5;
        width: 220px;
    }

    .compare-table td.mid-col {
        background: rgba(201, 237, 60, .08);
        color: var(--ink);
        font-weight: 600;
    }

    .plan-stack {
        display: flex;
        flex-direction: column;
        gap: 20px;
    }

    .plan-card-m {
        border: 1px solid var(--line);
        border-radius: var(--radius);
        background: var(--surface);
        padding: 22px 18px;
    }

    .plan-card-m.hot-plan {
        border-color: #a5be30;
        box-shadow: 0 18px 34px rgba(19, 20, 16, .08);
    }

    .plan-name {
        font-size: 18px;
        font-weight: 800;
    }

    .plan-recommend {
        display: inline-block;
        font-size: 12px;
        font-weight: 700;
        padding: 2px 10px;
        border-radius: 999px;
        background: var(--ink);
        color: var(--accent);
    }

    .plan-feature {
        font-size: 14px;
        color: var(--muted);
        padding: 10px 0;
        border-bottom: 1px dashed var(--line);
        display: flex;
        align-items: flex-start;
        gap: 8px;
    }

    .feature-level {
        background: var(--bg);
        border-bottom: 1px solid var(--line);
    }

    .level-grid {
        display: grid;
        grid-template-columns: minmax(0, .7fr) minmax(0, 1.3fr);
        gap: 72px;
        align-items: stretch;
    }

    .level-lead {
        border-right: 1px solid var(--line);
        padding-right: 52px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: flex-start;
    }

    .level-lead h2 {
        font-size: clamp(28px, 3vw, 38px);
        line-height: 1.22;
        font-weight: 800;
        margin: 0;
    }

    .level-lead p {
        color: var(--muted);
        margin: 20px 0 0;
        font-size: 16px;
        line-height: 1.8;
    }

    .level-lead .btn {
        margin-top: 28px;
    }

    .level-list {
        display: flex;
        flex-direction: column;
        gap: 24px;
        justify-content: center;
    }

    .level-card {
        display: grid;
        grid-template-columns: 72px 1fr;
        align-items: center;
        border-radius: var(--radius);
        min-height: 160px;
        border: 1px solid var(--line);
        padding: 26px;
        background: var(--surface);
    }

    .level-card-dark {
        background: var(--dark);
        border-color: var(--dark);
        color: var(--surface);
        margin-left: 14%;
    }

    .level-card-dark .level-num {
        color: var(--accent);
    }

    .level-card-dark h3 {
        color: var(--surface);
    }

    .level-card-dark p {
        color: rgba(245, 243, 236, .72);
    }

    .level-num {
        font-size: 30px;
        font-weight: 800;
        color: var(--line);
    }

    .level-card h3 {
        font-size: 22px;
        font-weight: 800;
        margin: 0;
        color: var(--ink);
    }

    .level-card p {
        margin: 8px 0 0;
        color: var(--muted);
        line-height: 1.75;
    }

    .preview-dark {
        background: var(--dark);
        color: var(--surface);
        padding: 96px 0;
        border-bottom: 1px solid rgba(0, 0, 0, .3);
    }

    .preview-dark .section-head h2 {
        color: var(--surface);
    }

    .preview-dark .section-label,
    .preview-dark .section-head p {
        color: rgba(245, 243, 236, .72);
    }

    .preview-grid {
        display: grid;
        grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
        gap: 44px;
        align-items: end;
    }

    .preview-main .preview-frame {
        border-radius: 14px;
        overflow: hidden;
        position: relative;
        border: 1px solid rgba(255, 255, 255, .18);
        aspect-ratio: 4 / 3;
        background: var(--dark-surface);
    }

    .preview-frame img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        opacity: .74;
    }

    .preview-badge {
        position: absolute;
        top: 16px;
        left: 16px;
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: var(--accent);
        color: var(--ink);
        font-size: 12px;
        font-weight: 800;
        border-radius: 999px;
        padding: 6px 14px;
        box-shadow: 0 8px 20px rgba(0, 0, 0, .22);
    }

    .preview-caption {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 20px;
        margin-top: 14px;
        font-size: 14px;
        color: rgba(245, 243, 236, .65);
    }

    .preview-list {
        display: flex;
        flex-direction: column;
        gap: 0;
        border-top: 1px solid rgba(245, 243, 236, .16);
    }

    .preview-item {
        display: block;
        padding: 20px 0;
        border-bottom: 1px solid rgba(245, 243, 236, .14);
    }

    .preview-item .preview-tag {
        display: inline-block;
        font-size: 12px;
        font-weight: 700;
        color: var(--accent);
        padding: 3px 10px;
        border: 1px solid rgba(201, 237, 60, .5);
        border-radius: 999px;
        margin-bottom: 10px;
    }

    .preview-item h3 {
        font-size: 19px;
        font-weight: 700;
        margin: 0;
        color: #f7f5ee;
        line-height: 1.5;
    }

    .preview-item p {
        font-size: 14px;
        color: rgba(245, 243, 236, .62);
        margin: 8px 0 0;
        overflow: hidden;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
    }

    .preview-item .preview-link {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        color: var(--accent);
        font-size: 14px;
        font-weight: 600;
        margin-top: 10px;
    }

    .preview-item:hover h3 {
        color: var(--accent);
    }

    .faq-block {
        background: var(--surface);
        border-bottom: 1px solid var(--line);
    }

    .faq-grid {
        display: grid;
        grid-template-columns: minmax(220px, .62fr) minmax(0, 1.38fr);
        gap: 56px;
    }

    .faq-lead {
        position: sticky;
        top: 96px;
        align-self: start;
        display: flex;
        flex-direction: column;
    }

    .faq-list {
        border-top: 1px solid var(--line);
    }

    .faq-item {
        border-bottom: 1px solid var(--line);
    }

    .faq-question {
        width: 100%;
        min-height: 60px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        background: transparent;
        text-align: left;
        font-size: 17px;
        font-weight: 700;
        color: var(--ink);
        padding: 0 0 0 4px;
        transition: color .2s ease;
    }

    .faq-question:hover {
        color: #4b6e38;
    }

    .faq-icon {
        flex: 0 0 auto;
        width: 34px;
        height: 34px;
        display: flex;
        align-items: center;
        justify-content: center;
        border: 1px solid var(--line);
        border-radius: 8px;
        font-size: 20px;
        color: var(--muted);
        transition: all .3s ease;
    }

    .faq-item.open .faq-icon {
        transform: rotate(45deg);
        background: var(--accent);
        color: var(--ink);
        border-color: var(--accent);
    }

    .faq-answer {
        overflow: hidden;
        max-height: 0;
        transition: max-height .36s ease;
        color: var(--muted);
        font-size: 16px;
        line-height: 1.8;
        padding-left: 4px;
        padding-right: 36px;
    }

    .faq-item.open .faq-answer {
        max-height: 600px;
        padding-bottom: 24px;
    }

    .cta-section {
        padding: 96px 0 104px;
        background: var(--bg);
        border-bottom: 1px solid var(--line);
    }

    .cta-panel {
        position: relative;
        background: var(--surface);
        border: 2px solid var(--ink);
        border-radius: 16px;
        display: grid;
        grid-template-columns: minmax(0, 1fr) auto;
        align-items: center;
        overflow: hidden;
    }

    .cta-copy {
        padding: 50px 54px;
    }

    .cta-panel img {
        width: 330px;
        height: 280px;
        object-fit: cover;
        border-left: 2px solid var(--ink);
    }

    .cta-copy .badge-cta {
        display: inline-flex;
        align-items: center;
        gap: 7px;
        font-size: 13px;
        font-weight: 700;
        padding: 6px 14px;
        border-radius: 999px;
        background: var(--accent);
        color: var(--ink);
    }

    .cta-copy h2 {
        font-size: clamp(26px, 3vw, 36px);
        line-height: 1.25;
        font-weight: 800;
        margin: 18px 0 0;
    }

    .cta-copy p {
        color: var(--muted);
        margin: 18px 0 0;
        font-size: 16px;
        max-width: 560px;
        line-height: 1.8;
    }

    .cta-actions {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 18px;
        margin-top: 28px;
    }

    .news-section {
        background: var(--surface);
        padding: 96px 0;
    }

    .news-layout {
        display: grid;
        grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
        gap: 40px;
        align-items: start;
    }

    .news-featured {
        border: 1px solid var(--line);
        border-radius: 14px;
        background: var(--bg);
        overflow: hidden;
        display: flex;
        flex-direction: column;
        height: 100%;
    }

    .news-featured-thumb {
        position: relative;
        overflow: hidden;
        aspect-ratio: 16 / 10;
        background: var(--dark-surface);
    }

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

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

    .news-featured-body {
        padding: 24px;
    }

    .news-featured-body .post-meta {
        margin-top: 14px;
    }

    .news-featured h3 {
        font-size: 24px;
        font-weight: 800;
        line-height: 1.35;
        margin: 12px 0 0;
    }

    .news-featured p {
        color: var(--muted);
        margin-top: 10px;
        font-size: 15px;
        line-height: 1.75;
    }

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

    .news-item {
        display: flex;
        align-items: flex-start;
        gap: 16px;
        border: 1px solid var(--line);
        border-radius: 14px;
        padding: 18px;
        background: var(--surface);
        transition: all .3s ease;
    }

    .news-item:hover {
        box-shadow: 0 14px 30px rgba(19, 20, 16, .06);
        transform: translateY(-2px);
    }

    .news-item-dot {
        flex: 0 0 5px;
        width: 5px;
        height: 44px;
        border-radius: 99px;
        background: var(--alert);
    }

    .news-item-content {
        flex: 1;
        min-width: 0;
    }

    .news-item-content h3 {
        font-size: 17px;
        line-height: 1.5;
        font-weight: 700;
        margin: 0;
        overflow: hidden;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
    }

    .news-item-content p {
        font-size: 14px;
        color: var(--muted);
        margin: 6px 0 0;
        overflow: hidden;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
    }

    .post-meta {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 14px;
        font-size: 13px;
        color: var(--muted);
    }

    .read-more {
        display: inline-flex;
        align-items: center;
        gap: 5px;
        color: var(--ink);
        font-weight: 700;
        transition: color .2s ease;
    }

    .read-more svg {
        width: 15px;
        height: 15px;
        transition: transform .25s ease;
    }

    .news-item:hover .read-more svg,
    .news-featured:hover .read-more svg {
        transform: translateX(4px);
    }

    .empty-news {
        border: 1px solid var(--line);
        border-radius: var(--radius);
        background: var(--bg);
        padding: 40px;
        text-align: center;
    }

    .empty-news .empty-icon {
        width: 48px;
        height: 48px;
        border-radius: 24px;
        background: #eeeae0;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 20px;
        color: var(--muted);
    }

    .empty-news p {
        margin-top: 14px;
        color: var(--muted);
    }

    .footer {
        background: var(--dark);
        color: rgba(245, 243, 236, .75);
        padding-top: 64px;
        padding-bottom: 32px;
    }

    .footer-top {
        display: grid;
        grid-template-columns: 1.2fr .8fr .8fr 1.1fr;
        gap: 48px;
        padding-bottom: 44px;
        border-bottom: 1px solid rgba(245, 243, 236, .12);
    }

    .footer-brand-name {
        color: var(--surface);
        font-size: 20px;
        font-weight: 800;
        margin: 0;
        line-height: 1.2;
    }

    .footer-desc {
        color: rgba(245, 243, 236, .56);
        font-size: 14px;
        line-height: 1.8;
        margin: 14px 0 0;
        max-width: 340px;
    }

    .footer-col h4 {
        font-size: 14px;
        font-weight: 600;
        color: rgba(245, 243, 236, .98);
        letter-spacing: .02em;
        margin: 0 0 16px;
    }

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

    .footer-col li+li {
        margin-top: 9px;
    }

    .footer-col a {
        position: relative;
        font-size: 14px;
        color: rgba(245, 243, 236, .65);
        transition: color .25s ease, padding-left .25s ease;
        padding-bottom: 3px;
    }

    .footer-col a:hover {
        color: var(--accent);
        padding-left: 4px;
    }

    .footer-bottom {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: space-between;
        gap: 14px;
        padding-top: 24px;
        font-size: 13px;
        color: rgba(245, 243, 236, .46);
    }

    .footer-bottom a {
        color: rgba(245, 243, 236, .65);
    }

    .tag-chip {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        width: fit-content;
        padding: 4px 13px;
        border-radius: 999px;
        background: #f0ece1;
        border: 1px solid var(--line);
        color: #57564d;
        font-size: 12px;
        font-weight: 700;
    }

    .article-return {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 14px;
        font-weight: 600;
        color: var(--ink);
    }

    .article-return:hover {
        color: #6b8f22;
    }

    .category-banner {
        padding: 76px 0;
        background: var(--surface);
        border-bottom: 1px solid var(--line);
    }

    .category-banner-grid {
        display: grid;
        grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
        gap: 40px;
        align-items: center;
    }

    .category-banner-img {
        border-radius: 14px;
        overflow: hidden;
        border: 1px solid var(--line);
        background: var(--bg);
        aspect-ratio: 5 / 3;
    }

    .category-banner-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .reveal-init {
        opacity: 0;
        transform: translateY(12px);
    }

    .reveal-visible {
        opacity: 1;
        transform: none;
        transition: opacity .6s ease, transform .5s ease;
    }

    @media (prefers-reduced-motion: reduce) {
        html {
            scroll-behavior: auto;
        }
        *,
        *::before,
        *::after {
            transition-duration: .01ms !important;
            animation-duration: .01ms !important;
        }
        .reveal-init {
            opacity: 1;
            transform: none;
        }
    }

    @media (max-width: 1100px) {
        .desktop-nav {
            display: none;
        }
        .nav-cta-desktop {
            display: none;
        }
        .mobile-toggle {
            display: flex;
            margin-left: auto;
        }
        .level-grid {
            gap: 42px;
        }
        .preview-grid {
            gap: 30px;
        }
        .cta-panel img {
            width: 260px;
            height: auto;
        }
        .footer-top {
            grid-template-columns: 1fr 1fr;
        }
        .news-layout {
            grid-template-columns: 1fr;
        }
    }

    @media (max-width: 900px) {
        .section-block {
            padding: 72px 0;
        }
        .preview-dark {
            padding: 72px 0;
        }
        .hero-intro {
            padding: 54px 0 68px;
        }
        .hero-grid {
            grid-template-columns: 1fr;
            gap: 42px;
        }
        .hero-visual-label {
            margin-top: 14px;
        }
        .level-grid {
            grid-template-columns: 1fr;
        }
        .level-lead {
            border-right: 0;
            padding-right: 0;
            padding-bottom: 16px;
        }
        .level-card-dark {
            margin-left: 0;
        }
        .preview-grid {
            grid-template-columns: 1fr;
            align-items: start;
        }
        .preview-main .preview-frame {
            aspect-ratio: 16 / 10;
        }
        .faq-grid {
            grid-template-columns: 1fr;
            gap: 28px;
        }
        .faq-lead {
            position: static;
        }
        .cta-panel {
            grid-template-columns: 1fr;
        }
        .cta-panel img {
            display: none;
        }
    }

    @media (max-width: 640px) {
        .container-x {
            padding-left: 18px;
            padding-right: 18px;
        }
        .topbar-links {
            display: none;
        }
        .header-inner {
            min-height: 60px;
            gap: 14px;
        }
        .brand-lock .brand-name {
            font-size: 18px;
        }
        .brand-lock .brand-sub {
            font-size: 10px;
        }
        .section-block {
            padding: 64px 0;
        }
        .preview-dark {
            padding: 64px 0;
        }
        .hero-intro {
            padding: 40px 0 56px;
        }
        .hero-copy h1 {
            font-size: 35px;
        }
        .hero-sub {
            font-size: 16px;
        }
        .hero-actions {
            align-items: stretch;
            flex-direction: column;
        }
        .hero-actions .btn {
            width: 100%;
        }
        .section-head.split-head {
            flex-direction: column;
            align-items: flex-start;
            gap: 12px;
        }
        .cta-copy {
            padding: 32px 24px;
        }
        .cta-panel {
            border-radius: 12px;
        }
        .footer-top {
            grid-template-columns: 1fr;
            gap: 32px;
        }
        .level-card {
            grid-template-columns: 48px 1fr;
            padding: 20px 16px;
            min-height: auto;
        }
        .news-item {
            padding: 14px;
        }
        .news-item-dot {
            height: 36px;
        }
        .news-featured-body {
            padding: 18px;
        }
    }

/* roulang page: category1 */
:root {
            --bg: #F5F3EC;
            --surface: #FFFFFF;
            --ink: #131410;
            --muted: #6C6B64;
            --line: #DDD8CB;
            --accent: #C9ED3C;
            --accent-hover: #D7FA4A;
            --dark: #151610;
            --dark-surface: #1E2019;
            --red: #FF5233;
            --radius: 10px;
            --container: 1200px;
            --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

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

        body {
            margin: 0;
            background: var(--bg);
            color: var(--ink);
            font-family: var(--font);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }

        img {
            max-width: 100%;
            display: inline-block;
            vertical-align: middle;
        }

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

        button {
            font-family: inherit;
            border: none;
            cursor: pointer;
        }

        .container-x {
            width: 100%;
            max-width: var(--container);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

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

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .04em;
            color: var(--muted);
            text-transform: uppercase;
        }

        .eyebrow::before {
            content: "";
            width: 22px;
            height: 3px;
            background: var(--accent);
            border-radius: 99px;
        }

        .section-heading {
            margin: 12px 0 0;
        }

        .section-heading h2 {
            font-size: clamp(28px, 4vw, 38px);
            line-height: 1.22;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin: 0;
        }

        .section-heading p {
            margin: 14px 0 0;
            max-width: 640px;
            color: var(--muted);
            font-size: 16px;
            line-height: 1.8;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 50px;
            padding: 0 26px;
            font-size: 16px;
            font-weight: 700;
            border-radius: 7px;
            transition: transform .2s ease, background-color .2s ease, border-color .2s ease, color .2s ease, box-shadow .2s ease;
            text-align: center;
            line-height: 1;
            border: 1px solid transparent;
        }

        .btn svg {
            width: 17px;
            height: 17px;
            transition: transform .2s ease;
        }

        .btn:hover svg {
            transform: translateX(4px);
        }

        .btn-primary {
            background: var(--accent);
            color: var(--ink);
            border-color: var(--accent);
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, .08);
        }

        .btn-ghost {
            background: transparent;
            color: var(--ink);
            border-color: var(--ink);
        }

        .btn-ghost:hover {
            background: var(--ink);
            color: #fff;
            transform: translateY(-2px);
            border-color: var(--ink);
        }

        .btn-sm {
            min-height: 42px;
            padding: 0 20px;
            font-size: 14px;
        }

        .btn-dark {
            background: transparent;
            color: #f2f2eb;
            border-color: rgba(255, 255, 255, .62);
        }

        .btn-dark:hover {
            background: #fff;
            border-color: #fff;
            color: var(--dark);
            transform: translateY(-2px);
        }

        .accent-btn-dark {
            background: var(--accent);
            color: var(--ink);
            border-color: var(--accent);
        }

        .accent-btn-dark:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
        }

        .btn:focus-visible,
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 3px;
        }

        .main-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(245, 243, 236, .9);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(221, 216, 203, .9);
            transition: box-shadow .2s ease;
        }

        .header-inner {
            min-height: 68px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .brand-lock {
            display: flex;
            align-items: baseline;
            flex-direction: row;
            gap: 10px;
            white-space: nowrap;
        }

        .brand-name {
            font-size: 21px;
            font-weight: 900;
            color: var(--ink);
            line-height: 1.1;
            letter-spacing: -.02em;
        }

        .brand-sub {
            font-size: 12px;
            color: var(--muted);
            font-weight: 500;
            border-left: 1px solid var(--line);
            padding-left: 9px;
            letter-spacing: .02em;
        }

        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-item {
            display: block;
            padding: 10px 6px;
            font-size: 15px;
            font-weight: 600;
            color: #4c4b45;
            position: relative;
            white-space: nowrap;
        }

        .nav-item::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 4px;
            height: 2px;
            width: 0%;
            background: var(--accent);
            border-radius: 3px;
            transition: width .25s ease;
        }

        .nav-item:hover {
            color: var(--ink);
        }

        .nav-item:hover::after,
        .nav-item.active::after {
            width: 100%;
        }

        .nav-item.active {
            color: var(--ink);
            font-weight: 800;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border: 1px solid var(--line);
            border-radius: 8px;
            background: transparent;
            position: relative;
        }

        .mobile-toggle span,
        .mobile-toggle span::before,
        .mobile-toggle span::after {
            content: "";
            position: absolute;
            width: 18px;
            height: 2px;
            left: 10px;
            top: 19px;
            background: var(--ink);
            transition: .3s ease;
        }

        .mobile-toggle span::before {
            top: -6px;
        }

        .mobile-toggle span::after {
            top: 6px;
        }

        .mobile-toggle.open span {
            background: transparent;
        }

        .mobile-toggle.open span::before {
            top: 0;
            transform: rotate(45deg);
        }

        .mobile-toggle.open span::after {
            top: 0;
            transform: rotate(-45deg);
        }

        .mobile-nav {
            display: none;
            border-top: 1px solid var(--line);
            background: #fbfaf5;
            padding: 16px 0 24px;
        }

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

        .mobile-nav .container-x {
            display: flex;
            flex-direction: column;
        }

        .mobile-nav a {
            min-height: 50px;
            display: flex;
            align-items: center;
            font-size: 16px;
            font-weight: 600;
            border-bottom: 1px solid rgba(221, 216, 203, .65);
            color: var(--ink);
        }

        .mobile-nav a:last-child {
            border-bottom: none;
        }

        .mobile-nav a.active {
            color: var(--ink);
            font-weight: 800;
        }

        .mobile-nav .mobile-cta {
            display: flex;
            justify-content: center;
            margin-top: 14px;
            border: none;
            border-radius: 8px;
        }

        /* category banner */
        .category-banner {
            position: relative;
            min-height: 410px;
            display: flex;
            align-items: flex-end;
            background-size: cover;
            background-position: center;
            color: #fff;
            isolation: isolate;
            overflow: hidden;
        }

        .category-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            z-index: -1;
            background: linear-gradient(90deg, rgba(10, 12, 9, .92) 0%, rgba(10, 12, 9, .45) 75%, rgba(10, 12, 9, .2) 100%);
        }

        .banner-content {
            width: 100%;
            padding: 54px 0 44px;
        }

        .bread-line {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, .8);
            margin-bottom: 24px;
        }

        .bread-line a {
            color: rgba(255, 255, 255, .85);
        }

        .bread-line a:hover {
            color: var(--accent);
        }

        .banner-content h1 {
            font-size: clamp(38px, 6vw, 60px);
            font-weight: 900;
            line-height: 1.12;
            letter-spacing: -0.03em;
            margin: 0 0 18px;
            max-width: 900px;
        }

        .banner-content h1 span {
            color: var(--accent);
            font-weight: 800;
        }

        .banner-content p {
            max-width: 780px;
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .88);
            margin: 0 0 30px;
        }

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

        .banner-chip {
            position: absolute;
            right: 40px;
            top: 50%;
            transform: translateY(-50%);
            max-width: 300px;
            display: flex;
            align-items: center;
            gap: 14px;
            border: 1px solid rgba(255, 255, 255, .2);
            background: rgba(21, 22, 16, .55);
            backdrop-filter: blur(10px);
            border-radius: 12px;
            padding: 22px 24px;
            color: #fff;
        }

        .banner-chip .pulse-dot {
            width: 9px;
            height: 9px;
            border-radius: 99px;
            background: var(--red);
            flex: none;
        }

        .banner-chip .txt b {
            display: block;
            font-size: 16px;
            font-weight: 700;
            line-height: 1.4;
        }

        .banner-chip .txt span {
            display: block;
            color: rgba(255, 255, 255, .7);
            font-size: 13px;
            margin-top: 4px;
        }

        /* Overview */
        .overview-grid {
            display: grid;
            grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
            gap: 40px;
            align-items: center;
        }

        .overview-lead {
            font-size: 25px;
            line-height: 1.65;
            font-weight: 700;
            letter-spacing: -0.01em;
        }

        .overview-lead span {
            background: linear-gradient(transparent 62%, rgba(201, 237, 60, .72) 62%);
        }

        .overview-copy {
            margin-top: 18px;
        }

        .overview-copy p {
            color: #4f4f49;
            font-size: 16px;
            line-height: 1.9;
            margin: 0 0 14px;
        }

        .check-list {
            list-style: none;
            margin: 24px 0 0;
            padding: 0;
        }

        .check-list li {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding: 12px 0;
            border-bottom: 1px dashed var(--line);
        }

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

        .check-list svg {
            margin-top: 5px;
            width: 19px;
            height: 19px;
            flex: none;
            color: #151610;
        }

        .overview-panel {
            position: relative;
            background: var(--dark);
            color: #F5F3EC;
            border-radius: 16px;
            overflow: hidden;
            padding: 30px;
            min-height: 340px;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
        }

        .overview-panel::after {
            content: "";
            position: absolute;
            right: -40px;
            top: -40px;
            width: 160px;
            height: 160px;
            background: var(--accent);
            border-radius: 50%;
            opacity: .12;
        }

        .overview-panel .caption {
            font-size: 13px;
            color: rgba(255, 255, 255, .7);
        }

        .overview-panel h3 {
            font-size: 28px;
            font-weight: 800;
            line-height: 1.35;
            margin: 8px 0 12px;
            max-width: 300px;
        }

        .overview-panel img {
            border-radius: 12px;
            margin-top: auto;
            width: 100%;
            height: 130px;
            object-fit: cover;
            margin-top: 28px;
        }

        /* compare table */
        .compare-section {
            background: var(--surface);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }

        .compare-wrap {
            margin-top: 44px;
        }

        .desk-table-wrap {
            overflow: hidden;
            border: 1px solid var(--line);
            border-radius: 14px;
            background: #fbfaf5;
        }

        .benefit-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 860px;
            table-layout: auto;
        }

        .benefit-table th {
            padding: 16px 16px;
            font-size: 13px;
            color: var(--muted);
            font-weight: 600;
            text-align: left;
            background: #fdeeee;
            border-bottom: 1px solid var(--line);
            letter-spacing: .02em;
        }

        .benefit-table th.top-tier {
            background: var(--accent);
            color: var(--ink);
            font-weight: 800;
        }

        .best-mark {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 11px;
            background: var(--ink);
            color: #fff;
            padding: 2px 8px;
            border-radius: 20px;
            margin-left: 4px;
        }

        .benefit-table td {
            padding: 15px 16px;
            font-size: 15px;
            border-bottom: 1px solid var(--line);
            vertical-align: top;
        }

        .benefit-table tbody tr:last-child td {
            border-bottom: none;
        }

        .benefit-table td:first-child {
            font-weight: 700;
        }

        .benefit-table td.tick {
            color: var(--ink);
            font-weight: 600;
        }

        .tick-icon {
            display: inline-flex;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--accent);
            align-items: center;
            justify-content: center;
            margin-right: 4px;
            vertical-align: -4px;
        }

        .tick-icon svg {
            width: 12px;
            height: 12px;
        }

        .mobile-compare {
            display: none;
            gap: 18px;
            margin-top: 26px;
        }

        .m-plan-card {
            background: #FBF9F2;
            border: 1px solid var(--line);
            border-radius: 12px;
            padding: 20px;
        }

        .m-plan-card.hot {
            background: var(--ink);
            color: #fff;
            position: relative;
        }

        .m-plan-card.hot .plan-badge {
            background: var(--accent);
            color: var(--ink);
        }

        .m-plan-card .plan-badge {
            display: inline-block;
            font-size: 11px;
            font-weight: 700;
            background: var(--line);
            color: var(--ink);
            padding: 3px 10px;
            border-radius: 99px;
            margin-bottom: 14px;
        }

        .m-plan-card h5 {
            font-size: 20px;
            font-weight: 800;
            margin: 0 0 12px;
        }

        .m-plan-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .m-plan-card li {
            position: relative;
            padding: 7px 0 7px 20px;
            font-size: 14px;
        }

        .m-plan-card li::before {
            content: "";
            position: absolute;
            left: 0;
            top: 15px;
            width: 6px;
            height: 6px;
            background: var(--accent);
            border-radius: 50%;
        }

        .m-plan-card.hot li::before {
            background: var(--accent-hover);
        }

        /* Levels: dark area */
        .arena-levels {
            background: var(--dark);
            color: #F5F3EC;
            overflow: hidden;
            position: relative;
        }

        .arena-levels .eyebrow,
        .arena-levels .section-heading p {
            color: rgba(245, 243, 236, .7);
        }

        .arena-levels .eyebrow::before {
            background: var(--accent);
        }

        .level-stack {
            margin-top: 46px;
            display: grid;
            gap: 16px;
        }

        .level-row {
            display: grid;
            grid-template-columns: 90px 1fr auto;
            align-items: stretch;
            gap: 20px;
            background: var(--dark-surface);
            border-radius: 14px;
            padding: 24px 26px;
            border: 1px solid rgba(255, 255, 255, .07);
            transition: background .2s ease;
        }

        .level-row:hover {
            background: #272a21;
        }

        .level-number {
            font-size: 44px;
            font-weight: 900;
            line-height: 1;
            color: var(--accent);
            letter-spacing: -.02em;
            font-variant-numeric: tabular-nums;
        }

        .level-name h4 {
            font-size: 21px;
            margin: 0 0 4px;
            font-weight: 800;
        }

        .level-name .level-tag {
            display: inline-block;
            color: rgba(255, 255, 255, .65);
            font-size: 12px;
            padding: 3px 10px;
            border: 1px solid rgba(255, 255, 255, .16);
            border-radius: 99px;
            margin-bottom: 8px;
        }

        .level-name p {
            margin: 6px 0 0;
            color: rgba(255, 255, 255, .72);
            font-size: 15px;
            line-height: 1.8;
            max-width: 560px;
        }

        .level-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--accent);
            font-weight: 700;
            font-size: 14px;
            white-space: nowrap;
        }

        .level-link:hover {
            color: var(--accent-hover);
        }

        .level-link svg {
            width: 16px;
            transition: transform .2s;
        }

        .level-link:hover svg {
            transform: translateX(3px);
        }

        /* Feature / exclusive */
        .exclusive-panel {
            display: grid;
            grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
            gap: 34px;
            align-items: stretch;
        }

        .exclusive-visual {
            position: relative;
            border-radius: 15px;
            overflow: hidden;
            min-height: 400px;
            background: #D9D7CE;
        }

        .exclusive-visual img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .exclusive-visual .meta {
            position: absolute;
            left: 18px;
            right: 18px;
            bottom: 16px;
            background: rgba(21, 22, 16, .72);
            border-radius: 10px;
            padding: 14px 16px;
            color: #fff;
            font-size: 13px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            backdrop-filter: blur(6px);
        }

        .exclusive-list {
            display: flex;
            flex-direction: column;
        }

        .ex-row {
            display: grid;
            grid-template-columns: auto 1fr auto;
            gap: 16px;
            padding: 19px 0;
            border-bottom: 1px solid var(--line);
            align-items: flex-start;
        }

        .ex-row:last-child {
            border-bottom: none;
        }

        .ex-no {
            font-size: 12px;
            color: var(--muted);
            font-weight: 700;
            letter-spacing: .02em;
            padding-top: 7px;
            min-width: 32px;
        }

        .ex-row .ex-text .badge {
            font-size: 11px;
            color: var(--ink);
            background: #EDECE4;
            border-radius: 99px;
            padding: 3px 10px;
            font-weight: 600;
            line-height: 1.6;
        }

        .ex-row .ex-text h4 {
            margin: 8px 0 6px;
            font-size: 19px;
            font-weight: 800;
            line-height: 1.4;
        }

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

        .ex-arrow {
            border: 1px solid var(--line);
            width: 34px;
            height: 34px;
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            transition: .2s;
        }

        .ex-row:hover .ex-arrow {
            background: var(--ink);
            color: #fff;
            border-color: var(--ink);
        }

        .ex-arrow svg {
            width: 16px;
            height: 16px;
        }

        /* flow section */
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1px;
            background: var(--line);
            border: 1px solid var(--line);
            border-radius: 14px;
            overflow: hidden;
            margin-top: 44px;
        }

        .flow-cell {
            min-height: 180px;
            background: var(--surface);
            padding: 24px 22px;
            display: flex;
            flex-direction: column;
            position: relative;
        }

        .flow-cell b {
            font-size: 22px;
            font-weight: 900;
            color: var(--dark);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .flow-cell b span {
            color: var(--accent);
        }

        .flow-cell h4 {
            font-size: 17px;
            font-weight: 700;
            margin: 16px 0 8px;
        }

        .flow-cell p {
            margin: 0;
            font-size: 14px;
            color: var(--muted);
            line-height: 1.8;
        }

        .flow-cell::after {
            content: "";
            position: absolute;
            left: 24px;
            bottom: 0;
            height: 3px;
            width: 30px;
            background: var(--accent);
            transition: width .2s;
        }

        .flow-cell:hover::after {
            width: 60px;
        }

        /* FAQ */
        .faq-layout {
            display: grid;
            grid-template-columns: 0.72fr 1.28fr;
            gap: 48px;
        }

        .faq-list {
            margin-top: 0;
        }

        .faq-row {
            border-bottom: 1px solid var(--line);
        }

        .faq-row:first-child {
            border-top: 1px solid var(--line);
        }

        .faq-q {
            width: 100%;
            min-height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            background: transparent;
            padding: 0 8px 0 0;
            text-align: left;
            font-size: 16px;
            font-weight: 700;
            color: var(--ink);
            border: none;
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--line);
            display: flex;
            align-items: center;
            justify-content: center;
            flex: none;
            transition: transform .25s ease, background .2s ease, border-color .2s ease;
            color: var(--ink);
        }

        .faq-icon svg {
            width: 12px;
            height: 12px;
        }

        .faq-row.open .faq-icon {
            transform: rotate(45deg);
            background: var(--accent);
            border-color: var(--accent);
        }

        .faq-a {
            max-height: 0;
            opacity: 0;
            overflow: hidden;
            transition: max-height .35s ease, opacity .3s ease, margin .2s ease;
        }

        .faq-row.open .faq-a {
            max-height: 320px;
            opacity: 1;
            margin-top: 2px;
        }

        .faq-a-inner {
            font-size: 15px;
            line-height: 1.9;
            color: var(--muted);
            padding: 0 40px 20px 0;
        }

        .faq-row.open .faq-q {
            color: var(--ink);
        }

        /* CTA */
        .cta-panel {
            background: var(--surface);
        }

        .cta-panel-inside {
            border: 1px solid var(--ink);
            border-radius: 16px;
            padding: 64px 56px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            background:
                linear-gradient(120deg, rgba(21, 22, 16, .95), rgba(21, 22, 16, .72)),
                url(/assets/images/backpic/back-3.webp) center/cover;
            color: #f8f7f0;
            overflow: hidden;
            position: relative;
        }

        .cta-panel-inside h2 {
            margin: 0;
            font-size: clamp(26px, 4vw, 38px);
            line-height: 1.3;
            font-weight: 800;
        }

        .cta-panel-inside p {
            font-size: 15px;
            line-height: 1.8;
            color: rgba(245, 243, 236, .8);
        }

        .cta-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            flex: none;
        }

        /* footer */
        .footer {
            background: #12130f;
            color: #EAE8DE;
            padding-top: 74px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.2fr .88fr .76fr .9fr;
            gap: 40px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, .1);
        }

        .footer-brand-name {
            font-size: 22px;
            font-weight: 900;
            color: #fff;
            margin: 0 0 8px;
        }

        .footer-desc {
            color: rgba(255, 255, 255, .55);
            line-height: 1.8;
            font-size: 14px;
            margin: 0;
        }

        .footer h4 {
            margin: 0 0 12px;
            color: #fff;
            font-size: 16px;
            font-weight: 700;
        }

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

        .footer ul li a {
            color: rgba(255, 255, 255, .58);
            display: inline-block;
            padding: 6px 0;
            font-size: 14px;
            transition: color .2s;
            position: relative;
        }

        .footer ul li a::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0%;
            height: 1px;
            background: var(--accent);
            transition: width .2s;
        }

        .footer ul li a:hover {
            color: var(--accent);
        }

        .footer ul li a:hover::after {
            width: 100%;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
            justify-content: space-between;
            padding: 22px 0 28px;
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
        }

        /* reveal */
        .reveal {
            opacity: 0;
            transform: translateY(10px);
            transition: opacity .5s ease, transform .5s ease;
        }

        .reveal.in-view {
            opacity: 1;
            transform: none;
        }

        /* responsive */
        @media (max-width: 1100px) {
            .desktop-nav {
                display: none;
            }

            .mobile-toggle {
                display: inline-flex;
            }

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

        @media (min-width: 1101px) {
            .mobile-nav {
                display: none !important;
            }
        }

        @media (max-width: 1024px) {
            .banner-chip {
                display: none;
            }

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

            .faq-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-top {
                grid-template-columns: 1fr 1fr;
            }

            .exclusive-panel {
                grid-template-columns: 1fr;
            }

            .exclusive-panel .exclusive-list {
                margin-top: 12px;
            }

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

        @media (max-width: 900px) {
            .desk-table-wrap {
                display: none;
            }

            .mobile-compare {
                display: grid;
                grid-template-columns: 1fr 1fr;
            }

            .level-row {
                grid-template-columns: 64px 1fr;
            }

            .level-link {
                grid-column: 2;
                margin-top: -4px;
            }
        }

        @media (max-width: 720px) {
            .section-pad {
                padding: 64px 0;
            }

            .container-x {
                padding-left: 18px;
                padding-right: 18px;
            }

            .brand-sub {
                display: none;
            }

            .category-banner {
                min-height: 360px;
            }

            .banner-content h1 {
                font-size: 36px;
            }

            .banner-content p {
                font-size: 15px;
            }

            .cta-panel-inside {
                padding: 40px 24px;
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-buttons {
                width: 100%;
            }

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

            .footer-top {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 580px) {
            .mobile-compare {
                grid-template-columns: 1fr;
            }

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

            .level-row {
                grid-template-columns: 1fr;
                gap: 12px;
                padding: 20px;
            }

            .level-link {
                grid-column: auto;
                margin-top: 4px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            * {
                scroll-behavior: auto !important;
                animation-duration: .01ms !important;
                transition-duration: .01ms !important;
            }

            .reveal {
                opacity: 1;
                transform: none;
            }
        }

/* roulang page: article */
:root {
  --bg: #F5F3EC;
  --surface: #FFFFFF;
  --ink: #131410;
  --muted: #6C6B64;
  --line: #DDD8CB;
  --lime: #C9ED3C;
  --lime-bright: #D7FA4A;
  --dark: #151610;
  --dark-surface: #1E2019;
  --coral: #FF5233;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 7px;
  --shadow-lift: 0 16px 34px -18px rgba(19, 20, 16, .28);
  --container: 1200px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 800;
  line-height: 1.3;
  color: var(--ink);
}

p {
  margin: 0;
}

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

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

button, input, textarea, select {
  font-family: inherit;
}

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

:focus-visible {
  outline: 3px solid rgba(201, 237, 60, .85);
  outline-offset: 3px;
}

.container-x {
  width: 100%;
  max-width: var(--container);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.site-main {
  min-height: 62vh;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  color: var(--ink);
  transition: color .2s, gap .2s;
}

.text-link:hover {
  color: #159a00;
  gap: 9px;
}

/* top strip */
.topbar {
  background: var(--dark);
  color: rgba(255, 255, 255, .68);
  min-height: 34px;
}

.topbar-inner {
  min-height: 34px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  font-size: 13px;
}

.topbar-tip {
  display: flex;
  align-items: center;
  white-space: nowrap;
  color: rgba(255, 255, 255, .76);
  margin: 0;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--lime);
  margin-right: 8px;
  flex: 0 0 auto;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  white-space: nowrap;
}

.topbar-actions a {
  color: rgba(255, 255, 255, .7);
  transition: color .18s;
  position: relative;
}

.topbar-actions a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--lime);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .2s;
}

.topbar-actions a:hover {
  color: var(--lime);
}

.topbar-actions a:hover::after {
  transform: scaleX(1);
}

/* header */
.main-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(245, 243, 236, .86);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand-lock {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  line-height: 1;
  flex-shrink: 0;
}

.brand-name {
  font-size: 23px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.brand-sub {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .12em;
  color: var(--muted);
  margin-top: 5px;
}

.desktop-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 26px;
}

.nav-item {
  position: relative;
  padding: 8px 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
  transition: color .2s;
}

.nav-item::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 3px;
  background: var(--lime);
  border-radius: 4px;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .24s ease;
}

.nav-item:hover::after,
.nav-item.active::after {
  transform: scaleX(1);
}

.nav-item:hover,
.nav-item.active {
  color: var(--ink);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.nav-cta-desktop {
  height: 40px;
  padding: 0 18px;
  font-size: 14px;
}

.mobile-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 0;
  background: transparent;
  cursor: pointer;
  color: var(--ink);
  border-radius: 8px;
}

.mobile-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  position: relative;
  margin: 0 auto;
}

.mobile-toggle span::before,
.mobile-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 3px;
}

.mobile-toggle span::before {
  top: -6px;
}

.mobile-toggle span::after {
  top: 6px;
}

.mobile-nav {
  display: none;
}

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

  .nav-cta-desktop {
    display: none;
  }

  .mobile-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .mobile-nav {
    display: block;
    max-height: 0;
    overflow: hidden;
    visibility: hidden;
    opacity: 0;
    transition: max-height .35s ease, opacity .3s ease, visibility .3s ease;
    border-top: 0 solid transparent;
  }

  .mobile-nav.open {
    max-height: 560px;
    visibility: visible;
    opacity: 1;
    border-top-width: 1px;
    border-top-color: var(--line);
  }

  .mobile-nav-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    padding-top: 12px;
    padding-bottom: 24px;
  }

  .mobile-nav-list a {
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    border-bottom: 1px solid #ECE7DB;
  }

  .mobile-nav-list a.active {
    color: #1f9d00;
  }

  .mobile-nav-list a.btn {
    margin-top: 16px;
    justify-content: center;
    border-bottom: 0;
  }
}

/* buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  height: 50px;
  padding: 0 22px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
}

.btn-primary {
  background: var(--lime);
  color: var(--ink);
}

.btn-primary:hover {
  background: var(--lime-bright);
  transform: translateY(-2px);
  box-shadow: 0 12px 22px -12px rgba(19, 20, 16, .35);
}

.btn-outline {
  background: transparent;
  border-color: var(--ink);
  color: var(--ink);
}

.btn-outline:hover {
  background: var(--ink);
  color: var(--bg);
  transform: translateY(-1px);
}

.btn-light {
  background: var(--lime);
  color: var(--ink);
}

.btn-light:hover {
  background: var(--lime-bright);
  transform: translateY(-2px);
  box-shadow: 0 10px 22px -10px rgba(0, 0, 0, .4);
}

.btn-line-light {
  background: transparent;
  border-color: rgba(255, 255, 255, .7);
  color: #ffffff;
}

.btn-line-light:hover {
  background: #ffffff;
  color: var(--dark);
  transform: translateY(-2px);
}

.btn-sm {
  height: 40px;
  padding: 0 16px;
  font-size: 14px;
}

/* article page */
.article-page {
  padding-top: 44px;
  padding-bottom: 96px;
}

.crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 30px;
  overflow-wrap: anywhere;
}

.crumb a {
  color: var(--muted);
  transition: color .18s;
}

.crumb a:hover {
  color: var(--ink);
}

.crumb-sep {
  color: #b9b4a7;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 728px) minmax(0, 292px);
  gap: 44px;
  justify-content: center;
  align-items: start;
}

.article-col-main {
  min-width: 0;
}

.article-paper {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 50px;
}

.article-head {
  border-bottom: 1px solid var(--line);
  padding-bottom: 26px;
}

.article-cat {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--lime);
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 999px;
}

.article-head h1 {
  margin: 20px 0 0;
  font-size: clamp(30px, 4vw, 40px);
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: var(--ink);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
  margin-top: 22px;
  color: var(--muted);
  font-size: 13px;
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.meta-dot {
  display: inline-block;
  width: 3px;
  height: 3px;
  border-radius: 999px;
  background: #aaa592;
}

.article-cover {
  margin: 36px 0 8px;
  overflow: hidden;
  border-radius: 16px;
  background: #e6e1d6;
}

.article-cover img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.article-body {
  font-size: 16px;
  line-height: 1.9;
  color: #2b2a24;
  overflow-wrap: break-word;
  padding-top: 22px;
}

.article-body p {
  margin-bottom: 1.45em;
}

.article-body h2 {
  font-size: 27px;
  font-weight: 800;
  margin: 1.7em 0 .55em;
  color: var(--ink);
  line-height: 1.4;
}

.article-body h3 {
  font-size: 20px;
  font-weight: 800;
  margin: 1.6em 0 .5em;
  color: var(--ink);
  line-height: 1.45;
}

.article-body h4 {
  font-size: 18px;
  font-weight: 700;
  margin: 1.4em 0 .4em;
  color: var(--ink);
}

.article-body ul {
  margin: 0 0 1.5em;
  padding-left: 0;
  list-style: none;
}

.article-body ul > li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 8px;
}

.article-body ul > li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: .82em;
  width: 7px;
  height: 7px;
  background: var(--lime);
  border-radius: 2px;
}

.article-body ol {
  margin: 0 0 1.5em;
  padding-left: 22px;
  list-style: decimal;
}

.article-body ol li {
  padding-left: 6px;
  margin-bottom: 8px;
}

.article-body ol li::marker {
  color: var(--ink);
  font-weight: 700;
}

.article-body blockquote {
  margin: 1.6em 0;
  padding: 18px 22px;
  background: #F8F5EC;
  border-left: 5px solid var(--lime);
  border-radius: 0 14px 14px 0;
  color: #4b493f;
  font-size: 16px;
}

.article-body blockquote p:last-child {
  margin-bottom: 0;
}

.article-body a {
  font-weight: 600;
  color: var(--ink);
  box-shadow: inset 0 -3px 0 var(--lime);
  transition: box-shadow .2s;
}

.article-body a:hover {
  box-shadow: inset 0 -14px 0 var(--lime);
}

.article-body img {
  width: 100%;
  height: auto;
  margin: 24px 0;
  border-radius: 14px;
}

.article-body figure {
  margin: 1.6em 0;
}

.article-body figcaption {
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  margin-top: -8px;
}

.article-body code {
  background: var(--dark);
  color: var(--lime);
  border-radius: 5px;
  padding: 2px 7px;
  font-size: .9em;
}

.article-body pre {
  background: var(--dark);
  color: #f2f0e8;
  border-radius: 14px;
  padding: 20px;
  overflow-x: auto;
  margin: 1.6em 0;
  border: 1px solid rgba(255, 255, 255, .05);
}

.article-body pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}

.article-return {
  margin-top: 44px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.return-label {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.article-return strong {
  display: block;
  font-size: 17px;
  margin-top: 4px;
}

.article-side {
  min-width: 0;
  position: sticky;
  top: 94px;
  display: grid;
  gap: 18px;
  align-self: start;
}

.side-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 22px;
}

.side-card h3 {
  font-size: 15px;
  margin: 0 0 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  font-weight: 800;
}

.side-cat-name {
  font-size: 17px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 8px;
}

.side-sub {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  margin-bottom: 16px;
}

.side-list li {
  border-bottom: 1px solid #EEE9DE;
}

.side-list li:last-child {
  border-bottom: 0;
}

.side-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}

.side-list a span:last-child {
  transition: transform .2s;
}

.side-list a:hover span:last-child {
  transform: translateX(4px);
}

.side-accent {
  background: var(--dark);
  color: rgba(255, 255, 255, .7);
}

.side-accent h3 {
  color: #ffffff;
  border-bottom-color: rgba(255, 255, 255, .12);
}

.side-accent .side-sub {
  color: rgba(255, 255, 255, .6);
}

/* related */
.related-area {
  padding: 8px 0 0;
  margin-top: 64px;
}

.related-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

.related-head h2 {
  font-size: 27px;
  font-weight: 800;
  margin: 0;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.related-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 15px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}

.related-card:hover {
  transform: translateY(-3px);
  border-color: #c6bfae;
  box-shadow: var(--shadow-lift);
}

.related-index {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .1em;
  color: var(--muted);
}

.related-card h3 {
  font-size: 18px;
  margin: 10px 0 6px;
  font-weight: 800;
}

.related-card h3 a {
  transition: color .18s;
}

.related-card h3 a:hover {
  color: #1f9d00;
}

.related-card p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
  flex: 1;
  margin-bottom: 18px;
}

.related-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
}

.related-more:hover {
  color: #1f9d00;
}

/* vip cta */
.vip-cta {
  padding: 24px 0 104px;
}

.vip-inner {
  background: var(--dark);
  border-radius: 22px;
  padding: 52px 56px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 40px;
  color: rgba(255, 255, 255, .76);
  position: relative;
  overflow: hidden;
}

.vip-cta::before {
  content: "";
  position: absolute;
  right: -80px;
  top: -100px;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(201, 237, 60, .18), transparent 70%);
  pointer-events: none;
}

.vip-copy {
  position: relative;
  z-index: 1;
}

.vip-overline {
  display: inline-block;
  color: var(--lime);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .1em;
  margin-bottom: 12px;
}

.vip-copy h2 {
  color: #ffffff;
  font-size: 30px;
  margin: 0 0 12px;
}

.vip-copy p {
  max-width: 620px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .65);
  margin-bottom: 24px;
}

.vip-stat {
  text-align: center;
  color: rgba(255, 255, 255, .85);
  min-width: 130px;
  border-left: 1px solid rgba(255, 255, 255, .14);
  padding-left: 32px;
}

.vip-stat strong {
  display: block;
  color: var(--lime);
  font-size: 48px;
  line-height: 1;
  font-weight: 800;
}

.vip-stat span {
  font-size: 13px;
  color: rgba(255, 255, 255, .58);
}

/* not found */
.not-found-wrap {
  display: flex;
  justify-content: center;
  padding: 90px 24px 130px;
}

.not-found-card {
  width: 100%;
  max-width: 620px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
  text-align: center;
  padding: 64px 42px;
}

.not-found-code {
  display: block;
  color: var(--lime);
  font-size: 44px;
  line-height: 1;
  font-weight: 900;
  letter-spacing: -0.04em;
}

.not-found-card h1 {
  font-size: 34px;
  margin: 18px 0 10px;
}

.not-found-card p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 28px;
}

/* footer */
.footer {
  background: var(--dark);
  color: rgba(255, 255, 255, .58);
  padding: 76px 0 36px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2.2fr 1fr 1fr 1fr;
  gap: 52px;
}

.footer-brand-name {
  color: #ffffff;
  font-size: 23px;
  font-weight: 800;
  margin: 0 0 10px;
}

.footer-desc {
  max-width: 320px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .5);
}

.footer-col h4 {
  color: #ffffff;
  font-size: 15px;
  margin: 0 0 20px;
  font-weight: 700;
}

.footer-col ul li {
  margin-bottom: 13px;
}

.footer-col ul a {
  font-size: 14px;
  color: rgba(255, 255, 255, .55);
  transition: color .18s;
}

.footer-col ul a:hover {
  color: var(--lime);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding-top: 30px;
  margin-top: 56px;
  border-top: 1px solid rgba(255, 255, 255, .12);
  font-size: 13px;
  color: rgba(255, 255, 255, .36);
}

/* responsive */
@media (max-width: 1100px) {
  .article-layout {
    grid-template-columns: minmax(0, 700px) minmax(0, 280px);
    gap: 32px;
  }

  .article-paper {
    padding: 36px;
  }
}

@media (max-width: 1023px) {
  .topbar-inner {
    font-size: 12px;
  }

  .header-inner {
    gap: 14px;
  }

  .article-page {
    padding-top: 34px;
    padding-bottom: 72px;
  }

  .article-layout {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .article-side {
    position: static;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
    gap: 16px;
  }

  .vip-inner {
    grid-template-columns: 1fr;
    padding: 40px;
  }

  .vip-stat {
    text-align: left;
    border-left: 0;
    padding-left: 0;
    border-top: 1px solid rgba(255, 255, 255, .14);
    padding-top: 20px;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    column-gap: 38px;
    row-gap: 44px;
  }

  .footer-about {
    grid-column: 1 / -1;
  }
}

@media (max-width: 760px) {
  .article-side {
    grid-template-columns: 1fr;
  }

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

  .article-paper {
    padding: 26px;
    border-radius: 16px;
  }

  .vip-cta {
    padding-bottom: 70px;
  }

  .vip-inner {
    padding: 30px 24px;
    border-radius: 16px;
  }

  .vip-copy h2 {
    font-size: 25px;
  }

  .article-head h1 {
    font-size: 28px;
  }

  .not-found-card {
    padding: 44px 24px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .footer-bottom {
    flex-direction: column;
  }
}

@media (max-width: 600px) {
  .container-x {
    padding-left: 20px;
    padding-right: 20px;
  }

  .topbar-actions {
    display: none;
  }

  .brand-name {
    font-size: 20px;
  }

  .brand-sub {
    display: none;
  }

  .footer {
    padding-top: 56px;
  }

  .footer-bottom {
    margin-top: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}

/* roulang page: category2 */
:root{
  --bg:#F5F3EC;
  --card:#FFFFFF;
  --ink:#131410;
  --muted:#6C6B64;
  --line:#DDD8CB;
  --acid:#C9ED3C;
  --acid-hover:#D7FA4A;
  --dark:#151610;
  --dark-surface:#1E2019;
  --red:#FF5233;
  --radius:10px;
  --radius-lg:16px;
  --shadow:0 16px 34px rgba(21, 22, 16, .12);
  --font:-apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--ink);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img,svg,video{display:block;max-width:100%}
a,button,input,textarea{font-family:inherit;color:inherit;text-decoration:none}
button{background:none;border:0;cursor:pointer}
.container-x{max-width:1200px;margin-left:auto;margin-right:auto;padding-left:24px;padding-right:24px;width:100%}
.main-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(245,243,236,.88);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(221,216,203,.9);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:68px;
  gap:20px;
}
.brand-lock{display:flex;flex-direction:column;line-height:1.2;min-width:180px}
.brand-name{font-size:20px;font-weight:900;letter-spacing:-.5px}
.brand-sub{font-size:12px;color:var(--muted);margin-top:2px}
.desktop-nav{display:flex;align-items:center;gap:28px}
.nav-item{
  position:relative;
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  padding:24px 2px 20px;
  transition:color .2s;
}
.nav-item:hover,.nav-item.active{color:#000}
.nav-item::after{
  content:"";
  position:absolute;
  left:0;bottom:12px;
  width:0;height:2px;
  background:var(--acid);
  transition:width .28s ease;
}
.nav-item.active::after,.nav-item:hover::after{width:100%}
.header-actions{display:flex;align-items:center;gap:12px}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:50px;
  padding:0 22px;
  border-radius:8px;
  font-size:15px;
  font-weight:700;
  border:1px solid transparent;
  transition:background .25s,color .25s,transform .25s,box-shadow .25s,border-color .25s;
}
.btn:focus-visible,.nav-item:focus-visible,.mobile-toggle:focus-visible{
  outline:3px solid var(--acid);
  outline-offset:2px;
}
.btn-primary{background:var(--acid);color:#151610;border-color:var(--acid)}
.btn-primary:hover{background:var(--acid-hover);transform:translateY(-2px);box-shadow:0 12px 22px rgba(201,237,60,.25)}
.btn-outline{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-outline:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-ghost{border-color:rgba(255,255,255,.5);color:#fff;background:transparent}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.1)}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}
.nav-cta-desktop{min-height:38px;padding:0 16px;font-size:14px}
.mobile-toggle{
  display:none;
  width:42px;height:42px;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.mobile-toggle span{
  display:block;
  width:22px;height:2px;
  background:var(--ink);
  border-radius:4px;
  transition:transform .25s,opacity .25s;
}
.mobile-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.mobile-toggle.open span:nth-child(2){transform:rotate(-45deg)}
.mobile-nav{
  display:none;
  background:var(--bg);
  border-top:1px solid var(--line);
  padding:14px 0 22px;
}
.mobile-nav.open{display:block}
.mobile-nav .container-x{display:flex;flex-direction:column;gap:8px}
.mobile-nav a:not(.btn){
  display:block;
  min-height:48px;
  display:flex;
  align-items:center;
  padding:0 8px;
  font-size:16px;
  font-weight:600;
  border-radius:8px;
}
.mobile-nav a:not(.btn):hover,.mobile-nav a:not(.btn).active{color:#000;background:#fff}
.mobile-cta{margin-top:16px}

.page-hero{
  position:relative;
  color:#fff;
  background-size:cover;
  background-position:center;
  overflow:hidden;
  padding:104px 0 92px;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(21,22,16,.94) 0%,rgba(21,22,16,.78) 46%,rgba(21,22,16,.36) 100%);
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-120px;
  bottom:-140px;
  width:420px;height:420px;
  background:radial-gradient(circle,rgba(201,237,60,.22),transparent 70%);
}
.hero-inner{
  position:relative;
  z-index:2;
  max-width:780px;
}
.crumbs{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.68);
  margin-bottom:28px;
}
.crumbs a{color:rgba(255,255,255,.85);transition:color .2s}
.crumbs a:hover{color:var(--acid)}
.hero-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.18);
  border-radius:999px;
  font-size:13px;
  padding:8px 14px;
  color:#F5F3EC;
  margin-bottom:20px;
}
.hero-kicker .dot{
  width:6px;height:6px;
  background:var(--red);
  border-radius:50%;
  flex:0 0 auto;
}
.hero-title{
  font-size:clamp(40px,7vw,66px);
  line-height:1.08;
  letter-spacing:-2px;
  font-weight:900;
}
.hero-title span{
  color:var(--acid);
}
.hero-text{
  margin-top:26px;
  font-size:17px;
  line-height:1.9;
  color:rgba(255,255,255,.82);
  max-width:650px;
}
.hero-actions{
  margin-top:36px;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}

.section{padding:96px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{
  max-width:720px;
  margin-bottom:56px;
}
.section-index{
  display:block;
  font-size:13px;
  letter-spacing:1px;
  font-weight:700;
  color:#98958d;
  margin-bottom:12px;
}
.section-title{
  font-size:clamp(26px,4vw,36px);
  line-height:1.25;
  font-weight:900;
  letter-spacing:-1px;
}
.section-desc{
  color:var(--muted);
  font-size:16px;
  margin-top:16px;
}

.standard-grid{
  display:grid;
  grid-template-columns:46% 1fr;
  gap:42px;
  align-items:start;
}
.standard-lead{
  background:var(--dark);
  color:#fff;
  border-radius:var(--radius-lg);
  padding:38px 36px;
  position:relative;
  overflow:hidden;
}
.standard-lead::after{
  content:"";
  position:absolute;
  right:-54px;bottom:-54px;
  width:180px;height:180px;
  border-radius:999px;
  background:rgba(201,237,60,.16);
}
.standard-lead h3{font-size:24px;font-weight:900;line-height:1.4}
.standard-lead p{margin-top:16px;color:rgba(255,255,255,.7);font-size:15px}
.standard-list{display:flex;flex-direction:column;gap:20px}
.standard-row{
  display:flex;
  gap:18px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px 22px;
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.standard-row:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow);
  border-color:rgba(201,237,60,.8);
}
.row-num{
  flex:0 0 auto;
  width:34px;height:34px;
  border-radius:9px;
  background:var(--acid);
  color:#151610;
  font-size:14px;
  font-weight:900;
  display:flex;
  align-items:center;
  justify-content:center;
}
.row-main strong{
  display:block;
  font-size:17px;
  margin-bottom:4px;
}
.row-main p{font-size:14px;color:var(--muted);line-height:1.7}

.cover-zine{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
}
.cover-card{
  grid-column:span 4;
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  overflow:hidden;
  transition:transform .3s,box-shadow .3s,border-color .3s;
}
.cover-card:nth-child(3n+1){
  grid-column:span 7;
}
.cover-card:nth-child(4){
  grid-column:span 5;
}
.cover-card:hover{
  transform:translateY(-4px);
  box-shadow:0 20px 38px rgba(21,22,16,.1);
  border-color:#b9b3a2;
}
.cover-thumb{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--dark-surface);
}
.cover-card:nth-child(3n+1) .cover-thumb{aspect-ratio:16/9}
.cover-card:nth-child(3n+2) .cover-thumb{aspect-ratio:4/3}
.cover-card:nth-child(3n+3) .cover-thumb{aspect-ratio:1/1}
.cover-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .45s ease;
}
.cover-card:hover .cover-thumb img{transform:scale(1.035)}
.cover-badge{
  position:absolute;
  top:12px;left:12px;
  background:var(--acid);
  color:#151610;
  padding:5px 11px;
  font-size:12px;
  font-weight:800;
  border-radius:999px;
}
.cover-body{padding:22px}
.cover-tag{display:inline-block;font-size:12px;color:var(--muted);margin-bottom:10px}
.cover-body h3{
  font-size:20px;
  line-height:1.45;
  font-weight:900;
  margin-bottom:8px;
}
.cover-body p{
  font-size:14px;
  color:var(--muted);
  line-height:1.75;
}
.cover-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--ink);
  font-size:14px;
  font-weight:700;
  margin-top:14px;
  transition:gap .2s,color .2s;
}
.cover-link:hover{gap:10px;color:#000}

.exclusive{
  background:var(--dark);
  color:#fff;
  border-radius:20px;
  overflow:hidden;
  margin-top:8px;
}
.exclusive-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:0;
}
.exclusive-visual{
  position:relative;
  min-height:420px;
  overflow:hidden;
}
.exclusive-visual::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(75deg,rgba(21,22,16,.4),rgba(21,22,16,.12));
  pointer-events:none;
}
.exclusive-visual img{width:100%;height:100%;position:absolute;inset:0;object-fit:cover}
.exclusive-list{
  padding:48px 40px;
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.exclusive-list h3{
  font-size:29px;
  line-height:1.35;
  font-weight:900;
  letter-spacing:-1px;
}
.exclusive-list > p{
  margin-top:14px;
  color:rgba(255,255,255,.66);
  font-size:15px;
}
.ex-item{
  display:flex;
  gap:14px;
  padding:16px 0;
  border-bottom:1px solid rgba(255,255,255,.12);
  align-items:flex-start;
}
.ex-item:last-child{border-bottom:0}
.ex-mark{
  flex:0 0 auto;
  width:8px;height:8px;
  border-radius:2px;
  background:var(--acid);
  margin-top:12px;
}
.ex-item strong{display:block;font-size:15px;font-weight:800}
.ex-item span{font-size:13px;color:rgba(255,255,255,.55)}

.compare-panel{
  border:1px solid var(--line);
  border-radius:18px;
  overflow:hidden;
  background:#fff;
}
.compare-grid{
  display:grid;
  grid-template-columns:1.2fr 1fr 1fr;
  border-bottom:1px solid var(--line);
}
.compare-grid.compare-head{
  background:var(--dark);
  color:#fff;
}
.compare-cell{
  padding:18px 20px;
  border-left:1px solid rgba(255,255,255,.1);
  font-size:15px;
  min-height:50px;
  display:flex;
  align-items:center;
}
.compare-body .compare-cell{
  border-left-color:var(--line);
  padding:20px;
  font-size:14px;
  color:var(--ink);
}
.compare-body .compare-cell:first-child{
  color:var(--muted);
  font-weight:600;
}
.compare-grid:last-child{border-bottom:0}
.hot-col{
  position:relative;
  background:#f0f8dc;
  font-weight:900;
}
.hot-tag{
  display:inline-block;
  background:var(--acid);
  color:var(--ink);
  font-size:11px;
  font-weight:900;
  border-radius:999px;
  padding:3px 9px;
  margin-right:8px;
}
.unit{
  font-size:12px;
  font-weight:500;
  color:var(--muted);
}

.level-row{
  display:grid;
  grid-template-columns:120px 1fr 2fr 220px;
  align-items:center;
  padding:24px 8px;
  border-top:1px solid var(--line);
  gap:20px;
}
.level-row:last-child{border-bottom:1px solid var(--line)}
.level-tier{
  font-size:13px;
  font-weight:800;
  color:#8b8780;
  letter-spacing:.5px;
}
.level-name{font-size:19px;font-weight:900}
.level-note{font-size:15px;color:var(--muted)}
.level-action{display:flex;justify-content:flex-end}
.level-action .btn{min-height:40px;font-size:14px;padding:0 16px}

.flow-wrap{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
  counter-reset:flow;
}
.flow-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  padding:30px 22px;
  position:relative;
  transition:transform .25s,box-shadow .25s;
}
.flow-card:hover{
  transform:translateY(-4px);
  box-shadow:0 18px 30px rgba(21,22,16,.1);
}
.flow-card::before{
  counter-increment:flow;
  content:"0" counter(flow);
  display:block;
  font-size:13px;
  font-weight:800;
  letter-spacing:.5px;
  color:var(--acid);
}
.flow-card h3{font-size:19px;margin:20px 0 8px;font-weight:900}
.flow-card p{font-size:14px;color:var(--muted)}

.faq-wrap{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:48px;
  align-items:start;
}
.faq-intro{
  background:#fff;
  border:1px solid var(--line);
  border-radius:18px;
  padding:34px;
}
.faq-intro h3{font-size:28px;font-weight:900;line-height:1.3}
.faq-intro p{margin-top:18px;color:var(--muted);font-size:15px}
.faq-list{}
.faq-item{
  border-top:1px solid var(--line);
  background:#fff;
}
.faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-q{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:20px;
  width:100%;
  min-height:72px;
  text-align:left;
  font-size:16px;
  font-weight:800;
  padding:16px 22px;
}
.faq-q .ico{
  font-size:22px;
  font-weight:300;
  transition:transform .35s;
  flex:0 0 auto;
}
.faq-item.active .ico{transform:rotate(45deg);color:var(--red)}
.faq-item.active .faq-q{color:#000}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease;
  border-top:0 solid var(--line);
}
.faq-item.active .faq-a{
  max-height:280px;
}
.faq-a-inner{
  padding:0 22px 26px;
  font-size:15px;
  color:var(--muted);
  line-height:1.85;
}
.faq-a-inner::before{
  content:"";
  display:block;
  width:34px;height:3px;
  background:var(--acid);
  border-radius:3px;
  margin:0 0 16px;
}

.cta-dark{
  background:var(--dark);
  color:#fff;
  padding:84px 0;
}
.cta-wrap{
  border:1px solid rgba(255,255,255,.18);
  background:linear-gradient(135deg,#1E2019,#151610);
  border-radius:22px;
  padding:52px;
  position:relative;
  overflow:hidden;
}
.cta-wrap::before{
  content:"";
  position:absolute;
  right:-80px;
  top:-80px;
  width:240px;height:240px;
  background:rgba(201,237,60,.16);
  border-radius:999px;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.cta-inner h2{
  font-size:clamp(26px,4vw,38px);
  line-height:1.25;
  font-weight:900;
  max-width:640px;
}
.cta-inner p{margin-top:14px;color:rgba(255,255,255,.68);max-width:640px}
.cta-actions{display:flex;flex-direction:column;gap:12px;align-items:flex-start}

.footer{
  background:var(--dark);
  color:rgba(255,255,255,.7);
  padding:64px 0 26px;
}
.footer-top{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:44px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand-name{
  color:#fff;
  font-size:20px;
  font-weight:900;
  margin-bottom:16px;
}
.footer-desc{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.55);
  max-width:320px;
}
.footer-col h4{
  color:#fff;
  font-size:15px;
  font-weight:800;
  margin-bottom:16px;
}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:8px}
.footer-col a{
  font-size:14px;
  color:rgba(255,255,255,.58);
  transition:color .2s;
}
.footer-col a:hover{color:var(--acid)}
.footer-bottom{
  padding-top:24px;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:rgba(255,255,255,.4);
}
@media (max-width:1024px){
  .desktop-nav{display:none}
  .nav-cta-desktop{display:none}
  .mobile-toggle{
    display:inline-flex;
    align-items:center;
    justify-content:center;
  }
  .standard-grid{grid-template-columns:1fr}
  .cover-zine{grid-template-columns:repeat(2,1fr)}
  .cover-card,.cover-card:nth-child(3n+1),.cover-card:nth-child(4){grid-column:span 1}
  .flow-wrap{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr}
  .exclusive-grid{grid-template-columns:1fr}
  .exclusive-visual{min-height:300px}
  .level-row{grid-template-columns:100px 1fr 1fr}
  .faq-wrap{grid-template-columns:1fr}
  .compare-panel{overflow-x:auto}
  .compare-table{min-width:720px}
}
@media (max-width:768px){
  .section{padding:68px 0}
  .hero-title{letter-spacing:-1px}
  .footer-top{grid-template-columns:1fr;}
  .footer-desc{max-width:none}
  .standard-row{flex-direction:column}
  .level-row{grid-template-columns:1fr;gap:10px;padding:28px 4px}
  .level-action{display:block;text-align:left}
  .level-action .btn{width:100%}
  .flow-wrap{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr}
  .cta-wrap{padding:34px 24px}
  .cta-inner{flex-direction:column}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .page-hero{padding:74px 0 70px}
  .container-x{padding-left:18px;padding-right:18px}
  .cover-zine{grid-template-columns:1fr}
  .cover-card,.cover-card:nth-child(3n+1),.cover-card:nth-child(4){grid-column:span 1}
  .cover-card:nth-child(3n+2) .cover-thumb{aspect-ratio:16/10}
  .exclusive-list{padding:34px 24px}
  .compare-grid .compare-cell{padding:14px 10px;font-size:13px}
}

/* roulang page: category3 */
:root {
    --bg: #F5F3EC;
    --surface: #FFFFFF;
    --text: #131410;
    --muted: #6C6B64;
    --line: #DDD8CB;
    --brand: #C9ED3C;
    --brand-hover: #D7FA4A;
    --dark: #151610;
    --dark-surface: #1E2019;
    --danger: #FF5233;
    --shadow-soft: 0 12px 30px rgba(21, 22, 16, .06);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.75;
    min-width: 320px;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

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

button {
    background: none;
    border: 0;
    cursor: pointer;
    font: inherit;
}

ul,
ol {
    list-style-position: inside;
}

:focus-visible {
    outline: 3px solid var(--brand);
    outline-offset: 3px;
    border-radius: 6px;
}

.container-x {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 24px;
    padding-right: 24px;
}

.main-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(245, 243, 236, .84);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(221, 216, 203, .9);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
}

.brand-lock {
    display: flex;
    flex-direction: column;
    justify-content: center;
    line-height: 1.15;
}

.brand-name {
    font-size: 21px;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text);
}

.brand-sub {
    font-size: 11px;
    color: var(--muted);
    letter-spacing: .12em;
    margin-top: 3px;
}

.desktop-nav {
    display: flex;
    gap: 4px;
}

.nav-item {
    position: relative;
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 0 14px;
    font-size: 15px;
    font-weight: 600;
    color: #4F4E48;
    border-radius: 8px;
    transition: color .2s ease, background .2s ease;
}

.nav-item::after {
    content: "";
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 8px;
    height: 3px;
    border-radius: 6px;
    background: var(--brand);
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform .22s ease;
}

.nav-item:hover {
    color: var(--text);
    background: rgba(21, 22, 16, .04);
}

.nav-item:hover::after,
.nav-item.active::after {
    transform: scaleX(1);
}

.nav-item.active {
    color: var(--text);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 22px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 700;
    line-height: 1;
    transition: background .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease, color .2s ease;
}

.btn-sm {
    min-height: 38px;
    padding: 0 16px;
    font-size: 14px;
    border-radius: 7px;
}

.btn-primary {
    background: var(--brand);
    color: var(--text);
    border: 1px solid transparent;
}

.btn-primary:hover {
    background: var(--brand-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(201, 237, 60, .24);
}

.btn-outline-dark {
    background: transparent;
    color: var(--text);
    border: 1px solid rgba(21, 22, 16, .55);
}

.btn-outline-dark:hover {
    background: var(--text);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(21, 22, 16, .12);
}

.btn-outline-light {
    background: transparent;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, .6);
}

.btn-outline-light:hover {
    border-color: #fff;
    background: rgba(255, 255, 255, .09);
    transform: translateY(-2px);
}

.nav-cta-desktop {
    white-space: nowrap;
}

.mobile-toggle {
    display: none;
    position: relative;
    width: 44px;
    height: 44px;
    border-radius: 10px;
}

.mobile-toggle span {
    position: absolute;
    left: 11px;
    right: 11px;
    top: 50%;
    height: 2px;
    border-radius: 4px;
    background: var(--text);
    transform: translateY(-50%);
    transition: background .2s ease;
}

.mobile-toggle span::before,
.mobile-toggle span::after {
    content: "";
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    border-radius: 4px;
    background: var(--text);
    transition: transform .24s ease, top .24s ease;
}

.mobile-toggle span::before {
    top: -8px;
}

.mobile-toggle span::after {
    top: 8px;
}

.mobile-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 99;
    background: var(--dark);
    color: #fff;
    padding: 8px 0 20px;
}

.mobile-nav .container-x {
    display: flex;
    flex-direction: column;
}

.mobile-nav a {
    display: flex;
    align-items: center;
    min-height: 50px;
    font-size: 16px;
    color: rgba(245, 243, 236, .82);
    border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.mobile-nav a.active {
    color: var(--brand);
}

.mobile-nav .mobile-cta {
    justify-content: center;
    margin: 18px 0 4px;
    border: 0;
}

body.nav-open .mobile-nav {
    display: block;
}

body.nav-open .mobile-toggle span {
    background: transparent;
}

body.nav-open .mobile-toggle span::before {
    top: 0;
    transform: rotate(45deg);
}

body.nav-open .mobile-toggle span::after {
    top: 0;
    transform: rotate(-45deg);
}

.cat-hero {
    position: relative;
    color: #F5F3EC;
    padding: 92px 0 92px;
    background-size: cover;
    background-position: center;
    overflow: hidden;
}

.cat-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(88deg, rgba(21, 22, 16, .96) 0%, rgba(21, 22, 16, .78) 46%, rgba(21, 22, 16, .30) 100%);
    pointer-events: none;
}

.cat-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
    background-size: 44px 44px;
    pointer-events: none;
}

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

.cat-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(300px, .92fr);
    gap: 56px;
    align-items: center;
}

.hero-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .12em;
    color: var(--brand);
    text-transform: uppercase;
}

.hero-kicker::before {
    content: "";
    width: 28px;
    height: 2px;
    background: var(--brand);
    border-radius: 4px;
}

.cat-hero h1 {
    font-size: clamp(42px, 5.5vw, 68px);
    line-height: 1.12;
    font-weight: 800;
    letter-spacing: -0.04em;
    color: #fff;
    margin: 16px 0 20px;
}

.cat-hero h1 .hero-brand {
    display: block;
    color: var(--brand);
    font-size: .6em;
    letter-spacing: -0.03em;
    margin-top: 7px;
}

.hero-desc {
    max-width: 620px;
    font-size: 17px;
    color: rgba(245, 243, 236, .76);
    line-height: 1.9;
}

.hero-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 32px;
}

.cat-hero-card {
    background: rgba(255, 255, 255, .06);
    border: 1px solid rgba(255, 255, 255, .22);
    border-radius: 14px;
    padding: 24px;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.cat-hero-card-title {
    display: block;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .12em;
    color: rgba(245, 243, 236, .55);
    margin-bottom: 10px;
}

.hero-card-row {
    display: grid;
    grid-template-columns: 38px 1fr;
    gap: 12px;
    padding: 14px 0;
    border-top: 1px solid rgba(255, 255, 255, .14);
    transition: background .2s ease, padding .2s ease;
}

.hero-card-row:hover {
    background: rgba(255, 255, 255, .05);
    padding-left: 8px;
    padding-right: 8px;
}

.hero-card-num {
    font-size: 13px;
    font-weight: 800;
    color: var(--brand);
}

.hero-card-row b {
    display: block;
    color: #fff;
    font-size: 16px;
    font-weight: 700;
}

.hero-card-row small {
    color: rgba(245, 243, 236, .54);
    font-size: 13px;
}

.section-block {
    padding: 88px 0;
}

.surface-section {
    background: var(--surface);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.section-head {
    max-width: 780px;
    margin-bottom: 40px;
}

.sec-note {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .16em;
    color: var(--muted);
}

.sec-note::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 2px;
    background: var(--brand);
}

.h2-title {
    font-size: clamp(30px, 4vw, 42px);
    line-height: 1.16;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin: 10px 0 14px;
}

.sec-sub {
    color: var(--muted);
    font-size: 16px;
    line-height: 1.85;
}

.id-anchor {
    scroll-margin-top: 110px;
}

.catalog-list {
    border-top: 1px solid var(--line);
}

.catalog-row {
    position: relative;
    display: grid;
    grid-template-columns: 104px minmax(0, 1fr) minmax(0, 1.8fr) auto;
    align-items: center;
    gap: 24px;
    padding: 30px 10px;
    border-bottom: 1px solid var(--line);
    transition: background .2s ease, padding-left .2s ease;
}

.catalog-row:hover {
    background: rgba(255, 255, 255, .55);
    padding-left: 18px;
}

.catalog-no {
    font-size: 15px;
    font-weight: 800;
    color: var(--muted);
}

.catalog-title {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.01em;
}

.catalog-desc {
    color: var(--muted);
    font-size: 15px;
    line-height: 1.8;
}

.tag-label {
    display: inline-flex;
    align-items: center;
    min-height: 26px;
    padding: 0 12px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: #EEEBE1;
    font-size: 12px;
    font-weight: 700;
    color: #55544D;
    white-space: nowrap;
}

.path-section {
    background: var(--dark);
    color: rgba(245, 243, 236, .8);
}

.path-section .sec-note {
    color: rgba(245, 243, 236, .54);
}

.path-section .h2-title {
    color: #fff;
}

.path-section .sec-sub {
    color: rgba(245, 243, 236, .58);
}

.path-list {
    margin-top: 28px;
}

.path-item {
    display: grid;
    grid-template-columns: 90px minmax(0, 1fr);
    gap: 28px;
    padding: 34px 0;
    border-top: 1px solid rgba(255, 255, 255, .14);
}

.path-no {
    font-size: 15px;
    font-weight: 800;
    color: var(--brand);
    letter-spacing: .06em;
}

.path-title {
    font-size: 24px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 10px;
    letter-spacing: -0.01em;
}

.path-desc {
    max-width: 760px;
    color: rgba(245, 243, 236, .68);
    font-size: 15px;
    line-height: 1.9;
}

.path-subgrid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.path-note {
    border-left: 2px solid var(--brand);
    padding-left: 14px;
    color: rgba(245, 243, 236, .5);
    font-size: 14px;
}

.path-note strong {
    display: block;
    color: rgba(245, 243, 236, .9);
    font-size: 14px;
}

.scene-grid {
    display: grid;
    grid-template-columns: 1.25fr .85fr .9fr;
    gap: 16px;
    align-items: stretch;
}

.scene-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 28px;
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}

.scene-card:hover {
    transform: translateY(-3px);
    border-color: rgba(21, 22, 16, .25);
    box-shadow: var(--shadow-soft);
}

.scene-main {
    grid-row: span 2;
    background: var(--dark);
    color: rgba(245, 243, 236, .78);
    border-color: var(--dark);
}

.scene-main:hover {
    border-color: var(--dark);
}

.scene-card .scene-kicker {
    display: inline-block;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .1em;
    color: var(--muted);
    margin-bottom: 12px;
}

.scene-main .scene-kicker {
    color: var(--brand);
}

.scene-card h3 {
    font-size: 20px;
    font-weight: 800;
    line-height: 1.4;
    color: var(--text);
}

.scene-main h3 {
    color: #fff;
    font-size: 24px;
}

.scene-card p {
    font-size: 15px;
    color: var(--muted);
    margin-top: 12px;
    line-height: 1.9;
}

.scene-main p {
    color: rgba(245, 243, 236, .62);
}

.scene-list {
    list-style: none;
    margin-top: 24px;
    display: grid;
    gap: 12px;
}

.scene-list li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    color: rgba(245, 243, 236, .68);
    font-size: 14px;
}

.scene-list li::before {
    content: "→";
    color: var(--brand);
    font-weight: 800;
}

.faq-section {
    background: var(--bg);
}

.faq-wrap {
    display: grid;
    grid-template-columns: .8fr 1.6fr;
    gap: 56px;
    align-items: start;
}

.faq-sticky-head {
    position: sticky;
    top: 110px;
}

.faq-item {
    border-bottom: 1px solid var(--line);
}

.faq-item summary {
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 26px;
    padding: 22px 2px;
    cursor: pointer;
    font-size: 17px;
    font-weight: 700;
    line-height: 1.5;
    color: var(--text);
    transition: color .2s ease;
}

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

.faq-item summary:hover {
    color: #34352F;
}

.faq-item summary::after {
    content: "＋";
    flex: 0 0 auto;
    font-size: 24px;
    font-weight: 400;
    color: var(--muted);
    transition: transform .22s ease, color .2s ease;
}

.faq-item[open] summary::after {
    transform: rotate(45deg);
    color: var(--text);
}

.faq-answer {
    padding: 0 30px 24px 2px;
    max-width: 760px;
    color: var(--muted);
    font-size: 15px;
    line-height: 1.9;
}

.cta-section {
    background: var(--surface);
    padding: 64px 0;
}

.cta-box {
    position: relative;
    background: var(--dark);
    color: rgba(245, 243, 236, .8);
    border-radius: 16px;
    padding: 54px 64px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 36px;
}

.cta-box::after {
    content: "";
    position: absolute;
    width: 340px;
    height: 340px;
    right: -110px;
    bottom: -150px;
    border-radius: 50%;
    background: var(--brand);
    opacity: .18;
}

.cta-kicker {
    display: inline-block;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .12em;
    color: var(--brand);
    margin-bottom: 10px;
}

.cta-box h2 {
    color: #fff;
    font-size: 26px;
    font-weight: 800;
    line-height: 1.4;
}

.cta-box p {
    margin-top: 12px;
    color: rgba(245, 243, 236, .62);
    font-size: 15px;
    max-width: 620px;
}

.cta-box .btn {
    position: relative;
    z-index: 2;
    flex: 0 0 auto;
    white-space: nowrap;
}

.footer {
    background: var(--dark);
    color: rgba(245, 243, 236, .74);
    padding: 78px 0 0;
}

.footer-top {
    display: grid;
    grid-template-columns: 1.6fr .75fr .8fr .9fr;
    gap: 44px;
    padding-bottom: 52px;
}

.footer-brand-name {
    font-size: 23px;
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.02em;
}

.footer-desc {
    max-width: 340px;
    margin-top: 14px;
    font-size: 14px;
    line-height: 1.9;
    color: rgba(245, 243, 236, .62);
}

.footer-col h4 {
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .1em;
    color: rgba(245, 243, 236, .95);
    margin-bottom: 16px;
}

.footer-col ul {
    list-style: none;
    display: grid;
    gap: 10px;
}

.footer-col a {
    display: inline-block;
    font-size: 14px;
    color: rgba(245, 243, 236, .58);
    transition: color .2s ease, transform .2s ease;
}

.footer-col a:hover {
    color: var(--brand);
    transform: translateX(3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .1);
    padding: 22px 0;
    display: flex;
    justify-content: space-between;
    gap: 18px;
    flex-wrap: wrap;
    color: rgba(245, 243, 236, .36);
    font-size: 12px;
}

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

    .mobile-toggle {
        display: block;
    }

    .cat-hero-grid {
        grid-template-columns: 1fr;
    }

    .cat-hero {
        padding: 72px 0;
    }

    .cat-hero-card {
        max-width: 560px;
    }

    .faq-wrap {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .faq-sticky-head {
        position: static;
    }

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

    .scene-main {
        grid-column: 1 / -1;
        grid-row: auto;
    }

    .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
    }
}

@media (max-width: 767px) {
    .header-inner {
        height: 60px;
    }

    .brand-name {
        font-size: 18px;
    }

    .brand-sub {
        font-size: 10px;
    }

    .container-x {
        padding-left: 18px;
        padding-right: 18px;
    }

    .section-block {
        padding: 64px 0;
    }

    .cat-hero {
        padding: 64px 0 56px;
    }

    .cat-hero h1 {
        font-size: 40px;
    }

    .hero-desc {
        font-size: 15px;
    }

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

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

    .hero-card-row span {
        font-size: 13px;
    }

    .catalog-row {
        grid-template-columns: 52px 1fr;
        gap: 10px 14px;
        padding: 24px 2px;
    }

    .catalog-no {
        font-size: 13px;
    }

    .catalog-tag {
        grid-column: 2;
        justify-self: start;
    }

    .path-item {
        grid-template-columns: 44px 1fr;
        gap: 12px;
    }

    .path-no {
        font-size: 13px;
    }

    .path-title {
        font-size: 20px;
    }

    .path-subgrid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

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

    .scene-main {
        grid-column: 1;
    }

    .cta-box {
        flex-direction: column;
        align-items: stretch;
        padding: 36px 24px;
    }

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

    .cta-box h2 {
        font-size: 22px;
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }

    html {
        scroll-behavior: auto;
    }
}