/* roulang page: index */
:root {
        --sand: #b4832f;
        --sand-dark: #8a6420;
        --sand-light: #dfc89a;
        --sand-pale: #f1e7d0;
        --espresso: #3e3226;
        --mink: #2f463a;
        --mink-deep: #23382f;
        --cream: #f4efe5;
        --paper: #fffaf2;
        --line: #e8dcc3;
        --muted: #6f6253;
        --radius-lg: 22px;
        --radius-md: 14px;
        --radius-sm: 10px;
        --shadow-soft: 0 10px 30px -14px rgba(63, 48, 27, .25);
        --shadow-hover: 0 18px 42px -16px rgba(63, 48, 27, .34);
        --container: 1280px;
    }

    * {
        box-sizing: border-box;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        margin: 0;
        font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
        background: var(--cream);
        color: var(--mink);
        line-height: 1.75;
        letter-spacing: .01em;
        -webkit-font-smoothing: antialiased;
    }
    a {
        color: inherit;
        text-decoration: none;
        transition: color .25s, background-color .25s, box-shadow .25s, transform .25s, border-color .25s;
    }
    img {
        max-width: 100%;
        display: block;
    }
    button,
    input,
    textarea {
        font: inherit;
    }
    p {
        margin: 0;
    }
    ul,
    ol {
        margin: 0;
        padding: 0;
        list-style: none;
    }
    h1,
    h2,
    h3,
    h4 {
        margin: 0;
        font-weight: 700;
        line-height: 1.25;
        letter-spacing: .015em;
        text-wrap: balance;
    }
    :focus-visible {
        outline: 2px solid var(--sand);
        outline-offset: 3px;
    }

    .wrap {
        max-width: var(--container);
        margin-left: auto;
        margin-right: auto;
        padding-left: 1.25rem;
        padding-right: 1.25rem;
        width: 100%;
    }

    .site-header {
        position: sticky;
        top: 0;
        z-index: 50;
        background: rgba(244, 239, 229, .88);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border-bottom: 1px solid rgba(232, 220, 195, .85);
        transition: box-shadow .3s, background .3s;
    }
    .site-header.scrolled {
        background: rgba(244, 239, 229, .96);
        box-shadow: 0 12px 30px -30px rgba(62, 50, 38, .6);
    }

    .brand-mark {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        background: var(--sand);
        color: #fffaf2;
        font-weight: 800;
        letter-spacing: .04em;
        min-width: 62px;
        height: 38px;
        border-radius: 10px;
        padding: 0 8px;
        font-size: 15px;
        box-shadow: 0 8px 18px -10px rgba(180, 131, 47, .8);
    }
    .brand-text {
        font-weight: 800;
        font-size: 20px;
        letter-spacing: .06em;
        color: var(--espresso);
        white-space: nowrap;
    }

    .nav-link {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-height: 44px;
        padding: 0 10px;
        font-size: 15px;
        font-weight: 500;
        color: #3f3a33;
        border-radius: 999px;
        position: relative;
        white-space: nowrap;
        transition: color .2s, background .2s;
    }
    .nav-link:hover {
        color: var(--sand-dark);
        background: var(--sand-pale);
    }
    .nav-link.is-active {
        color: var(--sand-dark);
        font-weight: 700;
    }
    .nav-link.is-active::after {
        content: "";
        position: absolute;
        left: 16px;
        right: 16px;
        bottom: 8px;
        height: 2px;
        border-radius: 2px;
        background: var(--sand);
    }
    .nav-cta {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        background: var(--mink);
        color: #f4efe5;
        border-radius: 999px;
        height: 42px;
        padding: 0 18px;
        font-size: 14px;
        font-weight: 600;
        box-shadow: 0 10px 20px -12px rgba(47, 70, 58, .8);
        transition: background .2s, transform .2s, box-shadow .2s;
    }
    .nav-cta:hover {
        background: #1c2e27;
        transform: translateY(-1px);
        box-shadow: 0 14px 24px -14px rgba(47, 70, 58, .8);
    }
    .icon-btn {
        width: 42px;
        height: 42px;
        border-radius: 999px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border: 1px solid var(--line);
        background: rgba(255, 250, 242, .7);
        color: var(--espresso);
        transition: background .2s, color .2s, border .2s;
    }
    .icon-btn:hover {
        background: var(--sand-pale);
        border-color: var(--sand-light);
        color: var(--sand-dark);
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        min-height: 48px;
        padding: 0 26px;
        border-radius: 999px;
        font-size: 15px;
        font-weight: 700;
        border: 1px solid transparent;
        cursor: pointer;
        transition: transform .2s, box-shadow .2s, background .2s, color .2s, border-color .2s;
        white-space: nowrap;
    }
    .btn-primary {
        background: var(--sand);
        color: #fffaf2;
        box-shadow: 0 16px 30px -18px rgba(180, 131, 47, .9);
    }
    .btn-primary:hover {
        background: var(--sand-dark);
        transform: translateY(-2px);
        box-shadow: 0 22px 36px -20px rgba(138, 100, 32, .9);
    }
    .btn-outline {
        border-color: rgba(62, 50, 38, .35);
        color: var(--espresso);
        background: transparent;
    }
    .btn-outline:hover {
        background: var(--sand-pale);
        border-color: var(--sand);
        transform: translateY(-2px);
    }
    .btn-light {
        background: #f9f3e7;
        color: var(--mink);
        box-shadow: 0 16px 30px -20px rgba(0, 0, 0, .3);
    }
    .btn-light:hover {
        background: #fffaf2;
        transform: translateY(-2px);
    }

    .eyebrow {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        padding: 6px 14px;
        border-radius: 999px;
        background: var(--sand-pale);
        border: 1px solid var(--line);
        color: var(--sand-dark);
        font-size: 13px;
        font-weight: 600;
        letter-spacing: .06em;
    }
    .eyebrow-dot {
        width: 7px;
        height: 7px;
        border-radius: 999px;
        background: var(--sand);
        display: inline-block;
    }
    .section {
        padding: 72px 0;
    }
    .section-md {
        padding: 48px 0;
    }
    @media (min-width: 768px) {
        .section {
            padding: 96px 0;
        }
        .section-md {
            padding: 64px 0;
        }
    }
    @media (min-width: 1024px) {
        .section {
            padding: 112px 0;
        }
    }

    .section-title {
        font-size: clamp(28px, 3vw, 36px);
        letter-spacing: .01em;
        color: var(--espresso);
    }
    .section-desc {
        font-size: 16px;
        color: var(--muted);
        line-height: 1.9;
    }
    .title-mark {
        color: var(--sand);
    }

    .link-arrow {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        color: var(--sand-dark);
        font-weight: 600;
        font-size: 14px;
        transition: gap .2s, color .2s;
    }
    .link-arrow:hover {
        gap: 12px;
        color: var(--sand-dark);
    }

    .hero {
        position: relative;
        background:
            linear-gradient(90deg, rgba(255, 250, 242, .40) 0%, rgba(244, 239, 229, .12) 100%),
            var(--cream);
        overflow: hidden;
    }
    .hero::before {
        content: "";
        position: absolute;
        width: 420px;
        height: 420px;
        border-radius: 50%;
        right: 5%;
        top: 26%;
        background: rgba(223, 200, 154, .14);
        filter: blur(2px);
        pointer-events: none;
    }
    .hero::after {
        content: "";
        position: absolute;
        width: 600px;
        height: 200px;
        bottom: -80px;
        left: -220px;
        background: repeating-linear-gradient(90deg, rgba(180, 131, 47, .08) 0 1px, transparent 1px 22px);
        transform: rotate(-8deg);
        pointer-events: none;
    }
    .hero-visual {
        position: relative;
        border-radius: 30px;
        overflow: hidden;
        box-shadow: var(--shadow-hover);
        border: 1px solid rgba(223, 200, 154, .8);
        background: var(--sand-pale);
    }
    .hero-visual::after {
        content: "";
        position: absolute;
        inset: auto 0 0 0;
        height: 130px;
        background: linear-gradient(transparent, rgba(47, 70, 58, .35));
    }
    .hero-badge {
        position: absolute;
        right: 22px;
        bottom: 22px;
        z-index: 2;
        background: rgba(255, 250, 242, .92);
        backdrop-filter: blur(8px);
        border: 1px solid rgba(223, 200, 154, .9);
        padding: 10px 16px;
        border-radius: 999px;
        font-weight: 600;
        font-size: 13px;
        color: var(--espresso);
        box-shadow: var(--shadow-soft);
    }
    .hero-corner {
        position: absolute;
        top: -16px;
        right: -16px;
        width: 80px;
        height: 80px;
        background: repeating-linear-gradient(135deg, rgba(180, 131, 47, .28) 0 8px, transparent 8px 18px);
        border-radius: 20px;
        z-index: 0;
    }

    .trust-line {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 10px 20px;
    }
    .trust-item {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 14px;
        color: var(--muted);
        font-weight: 500;
    }
    .trust-item .tick {
        width: 20px;
        height: 20px;
        border-radius: 999px;
        background: var(--sand-pale);
        border: 1px solid var(--line);
        color: var(--sand-dark);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 12px;
    }

    .grid-title-wrap {
        position: relative;
    }
    .grid-title-wrap::before {
        content: "";
        width: 42px;
        height: 4px;
        border-radius: 4px;
        background: var(--sand);
        display: block;
        margin-bottom: 18px;
    }

    .feature-main {
        border-radius: 28px;
        position: relative;
        overflow: hidden;
        background: linear-gradient(160deg, rgba(62, 50, 38, .83), rgba(47, 70, 58, .72)), url('/assets/images/coverpic/cover-5.png') center/cover no-repeat;
        min-height: 420px;
        display: flex;
        flex-direction: column;
        justify-content: flex-end;
        padding: 34px;
        color: #fff7e8;
        box-shadow: var(--shadow-soft);
        transition: box-shadow .3s, transform .3s;
    }
    .feature-main:hover {
        box-shadow: var(--shadow-hover);
    }
    .feature-mini {
        border-radius: 24px;
        border: 1px solid var(--line);
        background: rgba(255, 250, 242, .7);
        padding: 28px;
        display: block;
        transition: background .2s, border .2s, box-shadow .2s, transform .2s;
    }
    .feature-mini:hover {
        background: var(--paper);
        border-color: var(--sand-light);
        box-shadow: var(--shadow-soft);
        transform: translateY(-4px);
    }
    .feature-mini .num {
        font-size: 13px;
        color: var(--sand-dark);
        font-weight: 800;
        letter-spacing: .12em;
    }
    .feature-mini h3 {
        color: var(--espresso);
        font-size: 19px;
        margin: 10px 0 8px;
    }
    .feature-mini p {
        color: var(--muted);
        font-size: 14px;
        line-height: 1.8;
    }

    .scene-list {
        border-top: 1px solid var(--line);
    }
    .scene-item {
        display: grid;
        grid-template-columns: 46px 1fr;
        gap: 0 26px;
        border-bottom: 1px solid var(--line);
        padding: 27px 0;
        transition: padding-left .2s, background .2s;
    }
    .scene-item .scene-index {
        font-size: 15px;
        font-weight: 800;
        color: var(--sand);
        letter-spacing: .05em;
        transition: transform .2s, color .2s;
    }
    .scene-item:hover .scene-index {
        transform: scale(1.4);
        color: var(--sand-dark);
        transform-origin: left center;
    }
    .scene-item h3 {
        color: var(--espresso);
        font-size: 18px;
        margin-bottom: 6px;
    }
    .scene-item p {
        color: var(--muted);
        font-size: 15px;
        max-width: 680px;
        line-height: 1.8;
    }
    .scene-chip {
        display: inline-flex;
        align-items: center;
        background: var(--sand-pale);
        color: var(--sand-dark);
        border-radius: 999px;
        padding: 4px 12px;
        font-size: 12px;
        font-weight: 600;
        margin-top: 10px;
    }

    .case-card {
        min-width: 300px;
        width: 320px;
        background: var(--paper);
        border-radius: 24px;
        border: 1px solid var(--line);
        overflow: hidden;
        transition: transform .25s, box-shadow .25s, border-color .25s;
    }
    @media (min-width: 768px) {
        .case-card {
            width: 360px;
        }
    }
    .case-card:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow-hover);
        border-color: var(--sand-light);
    }
    .case-card .card-img {
        aspect-ratio: 16/10;
        overflow: hidden;
        background: var(--sand-pale);
    }
    .case-card .card-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform .5s;
    }
    .case-card:hover .card-img img {
        transform: scale(1.04);
    }
    .case-card .card-body {
        padding: 22px;
    }

    .plan-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 20px;
        align-items: stretch;
    }
    .plan-card {
        background: rgba(255, 250, 242, .78);
        border: 1px solid var(--line);
        border-radius: 28px;
        padding: 34px 28px;
        display: flex;
        flex-direction: column;
        transition: transform .2s, box-shadow .2s, background .2s;
    }
    .plan-card:hover {
        background: var(--paper);
        box-shadow: var(--shadow-soft);
        transform: translateY(-4px);
    }
    .plan-card strong {
        font-size: 22px;
        color: var(--espresso);
    }
    .plan-card .price-tip {
        color: var(--sand-dark);
        font-size: 15px;
        font-weight: 700;
        margin-top: 8px;
    }
    .plan-card ul {
        margin-top: 20px;
        flex: 1;
    }
    .plan-card li {
        display: flex;
        gap: 10px;
        color: var(--muted);
        font-size: 14px;
        padding: 7px 0;
    }
    .plan-card li::before {
        content: "";
        flex: 0 0 6px;
        width: 6px;
        height: 6px;
        border-radius: 999px;
        background: var(--sand);
        margin-top: 10px;
    }
    .plan-card.is-center {
        background: linear-gradient(155deg, var(--mink), var(--mink-deep));
        border-color: transparent;
        color: #f8f2e6;
        box-shadow: 0 22px 50px -28px rgba(47, 70, 58, .85);
        transform: translateY(-8px);
    }
    @media (min-width: 768px) {
        .plan-card.is-center {
            padding-top: 44px;
            padding-bottom: 44px;
        }
    }
    .plan-card.is-center strong {
        color: var(--sand-light);
    }
    .plan-card.is-center li {
        color: rgba(244, 239, 229, .86);
    }
    .plan-card.is-center .price-tip {
        color: #f1c877;
    }
    .badge-pop {
        display: inline-flex;
        background: var(--sand);
        color: #fffaf2;
        font-size: 12px;
        padding: 4px 12px;
        border-radius: 999px;
        margin-bottom: 16px;
        font-weight: 700;
        letter-spacing: .05em;
    }

    .news-card {
        border-radius: 24px;
        overflow: hidden;
        background: var(--paper);
        border: 1px solid var(--line);
        transition: transform .25s, border .25s, box-shadow .25s;
    }
    .news-card:hover {
        transform: translateY(-5px);
        border-color: var(--sand-light);
        box-shadow: var(--shadow-hover);
    }
    .news-list-item {
        display: flex;
        gap: 22px;
        padding: 22px 0;
        border-bottom: 1px solid var(--line);
        align-items: flex-start;
        transition: padding-left .2s, background .2s;
    }
    .news-list-item:hover {
        padding-left: 10px;
        background: linear-gradient(90deg, rgba(223, 200, 154, .15), transparent 80%);
    }
    .news-list-item .date {
        min-width: 72px;
        color: var(--sand-dark);
        font-size: 14px;
        font-weight: 600;
    }
    @media (min-width: 640px) {
        .news-list-item .date {
            font-size: 15px;
        }
    }

    .empty-note {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 12px;
        background: rgba(255, 250, 242, .72);
        border: 1px dashed var(--sand-light);
        color: var(--muted);
        border-radius: 20px;
        padding: 26px 22px;
        font-size: 15px;
    }

    .faq-box {
        background: rgba(255, 250, 242, .7);
        border: 1px solid var(--line);
        border-radius: 18px;
    }
    .faq-box summary {
        list-style: none;
        cursor: pointer;
        padding: 20px 24px;
        font-weight: 600;
        color: var(--espresso);
        font-size: 16px;
        display: flex;
        justify-content: space-between;
        gap: 20px;
        align-items: center;
        transition: color .2s, background .2s;
        border-radius: 18px;
        position: relative;
    }
    .faq-box summary::-webkit-details-marker {
        display: none;
    }
    .faq-box summary::after {
        content: "+";
        color: var(--sand);
        font-size: 25px;
        line-height: 20px;
        font-weight: 400;
        transition: transform .25s, color .25s;
    }
    .faq-box:hover summary {
        background: rgba(241, 231, 208, .5);
    }
    .faq-box[open] summary::after {
        transform: rotate(45deg);
        color: var(--sand-dark);
    }
    .faq-box .faq-body {
        padding: 2px 24px 24px 24px;
        color: var(--muted);
        line-height: 1.9;
        font-size: 15px;
    }
    .faq-box .faq-body p + p {
        margin-top: 10px;
    }

    .cta-band {
        background:
            repeating-linear-gradient(90deg, rgba(255, 245, 218, .05) 0 1px, transparent 1px 68px),
            repeating-linear-gradient(0deg, rgba(255, 245, 218, .04) 0 1px, transparent 1px 68px),
            linear-gradient(130deg, #2f463a 0%, #3e3226 100%);
        border-radius: 34px;
        position: relative;
        overflow: hidden;
    }
    .cta-band::before {
        content: "";
        position: absolute;
        width: 300px;
        height: 300px;
        right: -80px;
        top: -120px;
        border-radius: 50%;
        border: 60px solid rgba(241, 220, 168, .12);
    }
    .cta-tel {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        color: rgba(255, 247, 228, .85);
        font-weight: 500;
        font-size: 15px;
        border-bottom: 1px solid rgba(255, 247, 228, .3);
        padding-bottom: 3px;
        transition: border-color .2s, color .2s;
    }
    .cta-tel:hover {
        color: #f2c46c;
        border-color: #f2c46c;
    }

    .site-footer {
        background: var(--mink-deep);
        color: rgba(244, 239, 229, .78);
    }
    .site-footer .footer-brand .brand-text {
        color: #f4efe5;
    }
    .footer-title {
        color: #e9d9b6;
        font-size: 15px;
        letter-spacing: .08em;
        margin-bottom: 18px;
    }
    .footer-title::after {
        content: "";
        display: block;
        width: 20px;
        height: 2px;
        margin-top: 8px;
        background: rgba(180, 131, 47, .9);
        border-radius: 4px;
    }
    .footer-links a {
        display: inline-block;
        padding: 5px 0;
        color: rgba(244, 239, 229, .72);
        font-size: 14px;
        transition: color .2s, padding-left .2s;
    }
    .footer-links a:hover {
        color: var(--sand-light);
        padding-left: 6px;
    }
    .footer-bottom {
        border-top: 1px solid rgba(223, 200, 154, .2);
        padding: 26px 0;
        font-size: 13px;
        color: rgba(244, 239, 229, .55);
    }

    .mobile-menu {
        display: none;
        background: rgba(244, 239, 229, .98);
        border-bottom: 1px solid var(--line);
    }
    .mobile-menu.open {
        display: block;
    }
    .mobile-link {
        display: flex;
        min-height: 48px;
        align-items: center;
        padding: 0 24px;
        font-weight: 600;
        color: var(--espresso);
        border-bottom: 1px solid rgba(232, 220, 195, .7);
    }
    .mobile-link.is-active {
        color: var(--sand-dark);
        background: var(--sand-pale);
    }

    @media (max-width: 1023px) {
        .desktop-nav {
            display: none !important;
        }
    }
    @media (min-width: 1024px) {
        .mobile-trigger {
            display: none;
        }
    }
    .img-cover {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

/* roulang page: article */
:root {
            --sand: #b4832f;
            --sand-dark: #987126;
            --sand-deep: #3e3226;
            --paper: #f4efe5;
            --paper-deep: #e9dfcf;
            --pine: #2f463a;
            --pine-soft: #365a49;
            --gold-light: #dfc89a;
            --line: #e8dcc3;
            --success: #2f6b4f;
            --muted: #776b5c;
            --radius-lg: 18px;
            --radius-md: 12px;
            --shadow: 0 10px 30px -14px rgba(63, 48, 27, .25);
            --shadow-lg: 0 24px 44px -20px rgba(63, 48, 27, .32);
            --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

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

        body {
            margin: 0;
            background: var(--paper);
            color: #2d2a25;
            font-family: var(--font);
            line-height: 1.7;
            letter-spacing: .01em;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color .25s ease;
        }

        button,
        input,
        textarea {
            font: inherit;
        }

        .wrap {
            width: 100%;
            max-width: 1280px;
            margin-inline: auto;
            padding-inline: clamp(1rem, 4vw, 2rem);
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 60;
            background: rgba(244, 239, 229, .88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(223, 200, 154, .55);
            transition: box-shadow .3s ease, background .3s ease;
        }

        .site-header.is-scrolled {
            box-shadow: 0 12px 28px -18px rgba(63, 48, 27, .38);
        }

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--sand);
            color: #fff;
            font-weight: 700;
            letter-spacing: .03em;
            font-size: .86rem;
            padding: .3rem .55rem;
            border-radius: .55rem;
            line-height: 1.2;
            box-shadow: 0 6px 14px -8px rgba(180, 131, 47, .7);
        }

        .brand-text {
            color: var(--sand-deep);
            font-weight: 700;
            font-size: 1.1rem;
            letter-spacing: .04em;
            white-space: nowrap;
        }

        .nav-link,
        .mobile-link {
            position: relative;
            color: var(--sand-deep);
            font-size: .94rem;
            font-weight: 500;
            padding: .5rem .8rem;
            border-radius: .6rem;
            transition: color .2s ease, background .2s ease;
        }

        .nav-link:hover,
        .mobile-link:hover {
            color: var(--sand-dark);
            background: rgba(223, 200, 154, .2);
        }

        .nav-link.is-active,
        .mobile-link.is-active {
            color: var(--sand-dark);
        }

        .nav-link.is-active::after {
            content: "";
            position: absolute;
            left: .8rem;
            right: .8rem;
            bottom: -.1rem;
            height: 2px;
            border-radius: 2rem;
            background: var(--sand);
        }

        .desktop-nav {
            display: none;
        }

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

        .icon-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 999px;
            color: var(--sand-deep);
            border: 1px solid var(--line);
            background: rgba(255, 255, 255, .45);
            cursor: pointer;
            transition: background .25s ease, border-color .25s ease, color .25s ease;
        }

        .icon-btn:hover {
            background: var(--gold-light);
            border-color: transparent;
            color: var(--sand-deep);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--sand);
            color: #fff;
            font-size: .92rem;
            font-weight: 600;
            padding: .5rem 1.1rem;
            border-radius: 999px;
            gap: .3rem;
            box-shadow: 0 8px 18px -12px rgba(180, 131, 47, .8);
            transition: background .25s ease, transform .25s ease, box-shadow .25s ease;
        }

        .nav-cta:hover {
            background: var(--sand-dark);
            transform: translateY(-1px);
            box-shadow: 0 12px 22px -12px rgba(180, 131, 47, .9);
            color: #fff;
        }

        .mobile-menu {
            display: none;
            border-top: 1px solid var(--line);
            background: var(--paper);
            padding: .8rem 1rem 1.1rem;
            box-shadow: 0 18px 28px -24px rgba(63, 48, 27, .45);
        }

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

        .mobile-link {
            display: block;
            line-height: 48px;
            padding-inline: 1rem;
            border-radius: .7rem;
        }

        /* 内页文章专用 */
        .article-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid var(--line);
            z-index: 0;
        }

        .article-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(105deg, rgba(244, 239, 229, .96) 0%, rgba(244, 239, 229, .86) 42%, rgba(223, 200, 154, .64) 100%);
            z-index: -1;
        }

        .article-head {
            position: relative;
            padding: 2.6rem 0 3rem;
            max-width: 920px;
        }

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: .45rem;
            color: rgba(62, 50, 38, .62);
            font-size: .86rem;
            margin-bottom: 1.2rem;
        }

        .breadcrumb a {
            color: inherit;
            transition: color .25s ease;
        }

        .breadcrumb a:hover {
            color: var(--sand-dark);
        }

        .breadcrumb .current {
            color: var(--sand-deep);
            font-weight: 600;
        }

        .breadcrumb i {
            font-style: normal;
            opacity: .6;
        }

        .article-title {
            color: var(--sand-deep);
            font-size: clamp(30px, 4.6vw, 50px);
            line-height: 1.24;
            font-weight: 700;
            letter-spacing: -.01em;
            margin: 0;
            word-break: break-word;
        }

        .article-deck {
            margin-top: 1.2rem;
            color: rgba(47, 70, 58, .86);
            font-size: 1.02rem;
            line-height: 1.9;
            max-width: 860px;
            word-break: break-word;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: .6rem 1.4rem;
            margin-top: 1.7rem;
            color: var(--muted);
            font-size: .88rem;
        }

        .article-meta .chip {
            display: inline-flex;
            align-items: center;
            gap: .4rem;
            background: rgba(223, 200, 154, .28);
            border: 1px solid rgba(223, 200, 154, .65);
            color: var(--sand-deep);
            border-radius: 999px;
            padding: .28rem .8rem;
            font-size: .82rem;
            font-weight: 600;
        }

        .article-main {
            padding: 3rem 0 4.5rem;
        }

        .post-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 280px;
            gap: 2.8rem;
            align-items: start;
        }

        .post-card {
            background: #fffaf1;
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            padding: clamp(1.4rem, 4vw, 2.6rem);
        }

        .rich-content {
            max-width: 720px;
            font-size: 17px;
            line-height: 1.9;
            color: #39352e;
            word-break: break-word;
        }

        .rich-content p {
            margin: 0 0 1.45em;
        }

        .rich-content h2,
        .rich-content h3,
        .rich-content h4 {
            color: var(--sand-deep);
            font-weight: 700;
            line-height: 1.5;
            margin: 1.6em 0 .65em;
        }

        .rich-content h2 {
            font-size: clamp(24px, 2.6vw, 34px);
        }

        .rich-content h3 {
            font-size: 22px;
        }

        .rich-content ul,
        .rich-content ol {
            margin: 0 0 1.5em;
            padding-left: 1.2em;
        }

        .rich-content li {
            margin-bottom: .7em;
            line-height: 1.8;
        }

        .rich-content img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            margin: 2rem auto;
            max-width: 100%;
            border: 1px solid var(--line);
        }

        .rich-content blockquote {
            margin: 2rem 0;
            padding: .9rem 1.4rem;
            border-left: 3px solid var(--sand);
            background: rgba(223, 200, 154, .16);
            border-radius: 0 .75rem .75rem 0;
            color: var(--sand-deep);
        }

        .rich-content table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            margin: 2rem 0;
            font-size: .92rem;
            border-radius: .8rem;
            overflow: hidden;
            border: 1px solid var(--line);
        }

        .rich-content th {
            background: var(--gold-light);
            color: var(--sand-deep);
            padding: .75rem .95rem;
            text-align: left;
            font-weight: 600;
        }

        .rich-content td {
            padding: .7rem .95rem;
            border-top: 1px solid var(--line);
            color: #4e4639;
        }

        .post-tools {
            margin-top: 3.2rem;
            padding-top: 1.8rem;
            border-top: 1px solid var(--line);
        }

        .tag-pill {
            display: inline-block;
            border: 1px solid var(--gold-light);
            background: rgba(223, 200, 154, .2);
            border-radius: 999px;
            color: var(--sand-deep);
            font-size: .82rem;
            padding: .3rem .85rem;
            margin: 0 .5rem .65rem 0;
            transition: background .25s ease, border-color .25s ease;
        }

        .tag-pill:hover {
            background: var(--gold-light);
            border-color: var(--sand);
        }

        .secondary-links {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
            margin-top: 1.6rem;
        }

        .secondary-link-card {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: .8rem;
            background: rgba(255, 255, 255, .52);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: .85rem 1.1rem;
            color: var(--sand-deep);
            font-weight: 500;
            font-size: .9rem;
            transition: border-color .25s ease, background .25s ease, transform .25s ease;
        }

        .secondary-link-card:hover {
            background: rgba(223, 200, 154, .18);
            border-color: var(--gold-light);
            transform: translateY(-2px);
        }

        .right-side {
            position: sticky;
            top: 6rem;
        }

        .mini-panel {
            background: rgba(255, 250, 241, .9);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 1.35rem 1.3rem;
            box-shadow: var(--shadow);
            margin-bottom: 1.5rem;
        }

        .mini-panel h3 {
            margin: 0 0 .8rem;
            font-size: 1rem;
            color: var(--sand-deep);
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: .5rem;
        }

        .mini-panel h3::before {
            content: "";
            width: 3px;
            height: 16px;
            border-radius: 2px;
            background: var(--sand);
        }

        .side-card-tiny {
            display: flex;
            gap: .8rem;
            align-items: center;
            padding: .7rem .55rem;
            border-radius: .7rem;
            color: var(--muted);
            font-size: .88rem;
            transition: background .25s ease, color .25s ease;
        }

        .side-card-tiny:hover {
            background: rgba(223, 200, 154, .16);
            color: var(--sand-dark);
        }

        .side-card-tiny b {
            font-weight: 600;
            color: var(--sand-deep);
            line-height: 1.55;
        }

        .list-number {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--gold-light);
            color: var(--sand-deep);
            border-radius: .55rem;
            font-size: .78rem;
            font-weight: 700;
        }

        .empty-state {
            background: rgba(255, 250, 241, .85);
            border: 1px dashed var(--gold-light);
            border-radius: var(--radius-lg);
            padding: 4rem 2rem;
            text-align: center;
            max-width: 780px;
            margin-inline: auto;
        }

        .empty-state .empty-tag {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 64px;
            height: 64px;
            background: rgba(223, 200, 154, .24);
            border-radius: 999px;
            color: var(--sand-dark);
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 1.2rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            border-radius: 999px;
            padding: .75rem 1.7rem;
            font-size: .95rem;
            font-weight: 600;
            cursor: pointer;
            border: 1px solid transparent;
            transition: background .25s ease, color .25s ease, transform .25s ease, box-shadow .25s ease, border-color .25s ease;
        }

        .btn svg {
            width: 17px;
            height: 17px;
        }

        .btn-primary {
            background: var(--sand);
            color: #fff;
            box-shadow: 0 10px 22px -14px rgba(180, 131, 47, .9);
        }

        .btn-primary:hover {
            background: var(--sand-dark);
            transform: translateY(-2px);
            color: #fff;
            box-shadow: 0 14px 28px -16px rgba(180, 131, 47, .96);
        }

        .btn-ghost {
            border-color: rgba(47, 70, 58, .55);
            color: var(--pine);
            background: transparent;
        }

        .btn-ghost:hover {
            background: rgba(47, 70, 58, .08);
            border-color: var(--pine);
            color: var(--pine);
        }

        .btn-light {
            background: #fff;
            color: var(--sand-deep);
        }

        .btn-light:hover {
            background: var(--paper);
            color: var(--sand-dark);
            transform: translateY(-2px);
        }

        /* 延展阅读 */
        .related-section {
            background: var(--paper-deep);
            border-block: 1px solid var(--line);
        }

        .section-kicker {
            color: var(--sand-dark);
            font-size: .8rem;
            font-weight: 700;
            letter-spacing: .14em;
            text-transform: uppercase;
        }

        .section-title {
            color: var(--sand-deep);
            font-size: clamp(25px, 2.8vw, 34px);
            line-height: 1.35;
            font-weight: 700;
            margin: .3rem 0 0;
        }

        .view-card {
            background: #fffaf1;
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            overflow: hidden;
            display: block;
            height: 100%;
            box-shadow: 0 4px 16px -14px rgba(63, 48, 27, .18);
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
        }

        .view-card:hover {
            border-color: var(--gold-light);
            box-shadow: var(--shadow);
            transform: translateY(-5px);
        }

        .view-card-thumb {
            aspect-ratio: 16 / 10;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .view-card-thumb::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(244, 239, 229, 0) 52%, rgba(62, 50, 38, .28) 100%);
        }

        .view-card-body {
            padding: 1.2rem 1.3rem 1.35rem;
        }

        .view-card-body h3 {
            color: var(--sand-deep);
            font-size: 1.03rem;
            line-height: 1.55;
            font-weight: 700;
            margin: 0 0 .5rem;
        }

        .view-card-body p {
            color: var(--muted);
            font-size: .87rem;
            line-height: 1.8;
            margin: 0;
        }

        .card-more {
            margin-top: 1.2rem;
            display: inline-flex;
            align-items: center;
            gap: .35rem;
            color: var(--sand-dark);
            font-size: .87rem;
            font-weight: 600;
            transition: color .25s ease, gap .25s ease;
        }

        .view-card:hover .card-more {
            color: var(--sand);
            gap: .55rem;
        }

        .cover-badge {
            position: absolute;
            left: .9rem;
            bottom: .85rem;
            z-index: 2;
            background: rgba(244, 239, 229, .85);
            backdrop-filter: blur(6px);
            color: var(--sand-deep);
            border: 1px solid rgba(223, 200, 154, .8);
            border-radius: 999px;
            font-size: .74rem;
            padding: .18rem .75rem;
            font-weight: 600;
            box-shadow: 0 4px 10px -6px rgba(63, 48, 27, .3);
        }

        /* FAQ */
        .faq-box {
            max-width: 860px;
            margin-inline: auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--line);
            padding: .65rem 0;
        }

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

        .faq-item summary {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            padding: 1rem 0;
            color: var(--sand-deep);
            font-weight: 600;
            font-size: 1rem;
            position: relative;
            border-left: 0 solid transparent;
            transition: color .25s ease, padding-left .25s ease;
            list-style: none;
        }

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

        .faq-item summary::after {
            content: "+";
            font-size: 1.3rem;
            font-weight: 400;
            color: var(--sand-dark);
            flex-shrink: 0;
            margin-left: .8rem;
            transition: transform .25s ease;
        }

        .faq-item[open] summary {
            color: var(--sand-dark);
            padding-left: .45rem;
        }

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

        .faq-item .answer {
            color: var(--muted);
            padding: 0 0 1.2rem;
            line-height: 1.9;
            font-size: .95rem;
        }

        /* 转化条 */
        .cta-band {
            position: relative;
            background-color: var(--pine);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            color: #fff;
            isolation: isolate;
            padding: 4rem 0 4.6rem;
        }

        .cta-band::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(47, 70, 58, .93), rgba(62, 50, 38, .78));
            z-index: -1;
        }

        .cta-title {
            color: #fff;
            font-size: clamp(25px, 3vw, 35px);
            line-height: 1.42;
            font-weight: 700;
        }

        .cta-sub {
            color: rgba(255, 255, 255, .72);
            font-size: .98rem;
            margin-top: .7rem;
        }

        /* 页脚共享 */
        .site-footer {
            background: var(--pine);
            color: #e9e5da;
        }

        .site-footer .brand-mark {
            background: var(--gold-light);
            color: var(--sand-deep);
        }

        .site-footer .brand-text {
            color: #fff;
        }

        .footer-title {
            font-size: .88rem;
            letter-spacing: .12em;
            color: var(--gold-light);
            font-weight: 700;
            margin: .4rem 0 1rem;
            text-transform: uppercase;
        }

        .footer-links a {
            color: rgba(255, 255, 255, .62);
            line-height: 2.2;
            font-size: .9rem;
            transition: color .25s ease;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
        }

        .footer-bottom::before {
            content: "";
            display: block;
            height: 1px;
            max-width: 1280px;
            margin: 0 auto;
            background: linear-gradient(90deg, var(--gold-light), transparent 80%);
        }

        .footer-bottom p {
            color: rgba(255, 255, 255, .55);
            font-size: .82rem;
            margin: 0;
        }

        @media (max-width: 1120px) {
            .post-layout {
                grid-template-columns: minmax(0, 1fr);
                gap: 2rem;
            }

            .right-side {
                position: static;
                display: grid;
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 767px) {
            .article-head {
                padding: 1.6rem 0 2.2rem;
            }

            .article-meta {
                gap: .45rem 1rem;
                align-items: flex-start;
            }

            .post-card {
                padding: 1.3rem 1.1rem;
            }

            .rich-content {
                font-size: 16px;
            }

            .secondary-links {
                grid-template-columns: 1fr;
            }

            .cta-band {
                padding: 3rem 0;
            }
        }

/* roulang page: category1 */
:root {
        --gold: #b4832f;
        --gold-dark: #956d20;
        --gold-soft: #dfc89a;
        --sand-deep: #3e3226;
        --paper: #f4efe5;
        --card: #fffdf8;
        --forest: #2f463a;
        --border: #e8dcc3;
        --ink: #2f463a;
        --muted: #6f655a;
        --shadow: 0 10px 30px -14px rgba(63, 48, 27, .28);
        --shadow-lg: 0 22px 50px -20px rgba(63, 48, 27, .38);
        --radius: 1rem;
        --radius-lg: 1.4rem;
        --font-h1: clamp(30px, 4.2vw, 50px);
        --font-h2: clamp(24px, 2.8vw, 36px);
        --font-h3: 18px;
    }

    * {
        box-sizing: border-box;
    }

    html {
        scroll-behavior: smooth;
    }

    body {
        margin: 0;
        background: var(--paper);
        color: var(--ink);
        font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
        font-size: 16px;
        line-height: 1.8;
        letter-spacing: .015em;
    }

    h1, h2, h3, h4, p, figure, ul, ol {
        margin: 0;
    }

    h1, h2, h3 {
        line-height: 1.35;
        color: var(--sand-deep);
        letter-spacing: .01em;
    }

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

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

    button {
        font-family: inherit;
        cursor: pointer;
    }

    .wrap {
        width: 100%;
        max-width: 1280px;
        margin: 0 auto;
        padding: 0 28px;
    }

    .site-header {
        position: sticky;
        top: 0;
        z-index: 70;
        background: rgba(244, 239, 229, .9);
        -webkit-backdrop-filter: blur(14px);
        backdrop-filter: blur(14px);
        border-bottom: 1px solid rgba(180, 131, 47, .18);
        box-shadow: 0 6px 20px -18px rgba(63, 48, 27, .35);
    }

    .brand-mark {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 42px;
        height: 42px;
        border-radius: 12px;
        background: var(--gold);
        color: #fff;
        font-weight: 800;
        font-size: 16px;
        letter-spacing: -.02em;
        box-shadow: 0 6px 16px -8px rgba(180, 131, 47, .55);
    }

    .brand-text {
        color: var(--sand-deep);
        font-size: 19px;
        font-weight: 800;
        letter-spacing: .04em;
        white-space: nowrap;
    }

    .desktop-nav {
        display: none;
    }

    @media (min-width: 1024px) {
        .desktop-nav {
            display: flex;
            margin-left: 22px;
        }
    }

    .nav-link {
        position: relative;
        display: inline-flex;
        align-items: center;
        min-height: 44px;
        padding: 0 14px;
        border-radius: 999px;
        color: #5b4a37;
        font-size: 15px;
        font-weight: 500;
        line-height: 1;
        background: transparent;
        white-space: nowrap;
    }

    .nav-link:hover {
        color: var(--gold-dark);
        background: rgba(223, 200, 154, .22);
    }

    .nav-link.is-active {
        color: var(--gold-dark);
        font-weight: 700;
        background: rgba(223, 200, 154, .34);
    }

    .icon-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        border: 1px solid rgba(149, 109, 32, .24);
        border-radius: 999px;
        background: rgba(255, 253, 248, .6);
        color: var(--sand-deep);
        transition: background .25s ease, color .25s ease, border-color .25s ease;
    }

    .icon-btn:hover {
        background: var(--gold);
        border-color: var(--gold);
        color: #fff;
    }

    .nav-cta {
        display: none;
        align-items: center;
        min-height: 44px;
        margin-left: 6px;
        padding: 0 22px;
        border-radius: 999px;
        background: var(--gold);
        color: #fffdf8;
        font-size: 15px;
        font-weight: 700;
        letter-spacing: .03em;
        box-shadow: 0 10px 24px -12px rgba(180, 131, 47, .65);
    }

    @media (min-width: 1024px) {
        .nav-cta {
            display: inline-flex;
        }
    }

    .nav-cta:hover {
        background: var(--gold-dark);
        transform: translateY(-2px);
        box-shadow: 0 12px 26px -10px rgba(149, 109, 32, .62);
    }

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

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

    .mobile-menu {
        display: none;
        border-top: 1px solid rgba(180, 131, 47, .2);
        background: rgba(255, 253, 248, .98);
        padding: 18px 22px 26px;
    }

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

    .mobile-link {
        display: block;
        min-height: 48px;
        padding: 14px 10px;
        font-size: 16px;
        font-weight: 600;
        color: var(--sand-deep);
        border-bottom: 1px solid rgba(232, 220, 195, .8);
    }

    .mobile-link:hover,
    .mobile-link.is-active {
        color: var(--gold-dark);
        background: rgba(223, 200, 154, .14);
        padding-left: 14px;
    }

    .page-banner {
        position: relative;
        overflow: hidden;
        padding: 64px 0 58px;
        background-color: #3e3226;
        background-image: linear-gradient(108deg, rgba(62, 50, 38, .97) 0%, rgba(62, 50, 38, .88) 42%, rgba(47, 70, 58, .82) 100%), url('/assets/images/backpic/back-1.png');
        background-position: center;
        background-size: cover;
        background-repeat: no-repeat;
    }

    .page-banner::after {
        content: "";
        pointer-events: none;
        position: absolute;
        inset: 0;
        background-image:
            repeating-linear-gradient(115deg, rgba(255, 255, 255, .018) 0, rgba(255, 255, 255, .018) 1px, transparent 1px, transparent 12px);
    }

    .page-banner .wrap {
        position: relative;
        z-index: 2;
    }

    .breadcrumb {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        align-items: center;
        margin-bottom: 20px;
        color: rgba(255, 255, 255, .62);
        font-size: 13px;
    }

    .breadcrumb a {
        color: rgba(255, 255, 255, .78);
    }

    .breadcrumb a:hover {
        color: var(--gold-soft);
    }

    .hero-mark {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        margin-bottom: 20px;
        border-radius: 999px;
        border: 1px solid rgba(223, 200, 154, .32);
        padding: 8px 16px;
        background: rgba(255, 255, 255, .06);
        color: #efe1c2;
        font-size: 13px;
        letter-spacing: .08em;
    }

    .hero-mark::before {
        content: "";
        width: 6px;
        height: 6px;
        border-radius: 50%;
        background: var(--gold-soft);
    }

    .page-banner h1 {
        margin-bottom: 20px;
        color: #fff;
        font-size: var(--font-h1);
        font-weight: 800;
        line-height: 1.28;
        letter-spacing: .01em;
    }

    .page-banner h1 .accent {
        color: var(--gold-soft);
    }

    .banner-lead {
        max-width: 700px;
        color: rgba(255, 255, 255, .78);
        font-size: 17px;
        line-height: 2;
    }

    .hero-hints {
        margin-top: 28px;
        padding-top: 22px;
        border-top: 1px solid rgba(255, 255, 255, .16);
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
    }

    .hero-hints span {
        display: inline-flex;
        align-items: center;
        min-height: 38px;
        border-radius: 999px;
        border: 1px solid rgba(255, 255, 255, .16);
        padding: 6px 16px;
        background: rgba(255, 255, 255, .05);
        color: rgba(255, 255, 255, .76);
        font-size: 13px;
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-height: 48px;
        border-radius: 999px;
        padding: 0 26px;
        font-weight: 700;
        font-size: 15px;
        line-height: 1;
        letter-spacing: .04em;
        border: 1px solid transparent;
        transition: all .25s ease;
    }

    .btn-gold {
        background: var(--gold);
        color: #fffdf8;
        box-shadow: 0 12px 26px -12px rgba(180, 131, 47, .55);
    }

    .btn-gold:hover {
        background: var(--gold-dark);
        color: #fff;
        transform: translateY(-2px);
        box-shadow: 0 16px 34px -14px rgba(149, 109, 32, .6);
    }

    .btn-outline {
        border-color: rgba(180, 131, 47, .45);
        background: transparent;
        color: var(--gold-dark);
    }

    .btn-outline:hover {
        background: rgba(223, 200, 154, .24);
        border-color: var(--gold);
        transform: translateY(-2px);
    }

    .btn-on-dark {
        border-color: rgba(255, 255, 255, .38);
        background: transparent;
        color: #f6edda;
    }

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

    @media (min-width: 1024px) {
        .page-banner {
            min-height: 430px;
            padding: 92px 0 70px;
        }
    }

    .section {
        padding: 76px 0;
    }

    .section-tint {
        background: #f0e8da;
    }

    .section-deep {
        background: #efe7d4;
    }

    @media (max-width: 767px) {
        .section {
            padding: 54px 0;
        }
    }

    .eyebrow {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 14px;
        color: var(--gold-dark);
        font-size: 14px;
        font-weight: 700;
        letter-spacing: .1em;
    }

    .eyebrow::before {
        content: "";
        width: 28px;
        height: 3px;
        border-radius: 999px;
        background: var(--gold);
    }

    .section-heading {
        margin-bottom: 48px;
    }

    .section-heading h2 {
        font-size: var(--font-h2);
        font-weight: 800;
        margin-bottom: 14px;
    }

    .section-heading p {
        max-width: 760px;
        color: var(--muted);
        font-size: 16px;
    }

    .cover-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 24px;
    }

    @media (min-width: 1024px) {
        .cover-grid {
            grid-template-columns: repeat(5, minmax(0, 1fr));
        }
        .cover-grid .span-large {
            grid-column: span 3;
        }
        .cover-grid .span-stack {
            grid-column: span 2;
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
    }

    .cover-card {
        display: flex;
        flex-direction: column;
        overflow: hidden;
        border-radius: var(--radius-lg);
        background: var(--card);
        border: 1px solid var(--border);
        box-shadow: var(--shadow);
        transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
    }

    .cover-card:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow-lg);
        border-color: rgba(180, 131, 47, .55);
    }

    .cover-image {
        width: 100%;
        aspect-ratio: 16 / 10;
        object-fit: cover;
        background: #e9dfc8;
    }

    .cover-image.small {
        aspect-ratio: 4 / 3;
    }

    .card-body {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        padding: 24px;
    }

    .card-body h3 {
        font-size: 20px;
        font-weight: 800;
        margin-bottom: 10px;
        color: var(--sand-deep);
    }

    .card-body p {
        color: var(--muted);
        font-size: 14px;
        line-height: 1.85;
        flex: 1;
    }

    .tag-row {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        margin-top: 18px;
    }

    .tag {
        display: inline-flex;
        align-items: center;
        min-height: 28px;
        border-radius: 8px;
        padding: 0 12px;
        border: 1px solid var(--gold-soft);
        background: rgba(223, 200, 154, .2);
        color: #6d521e;
        font-size: 12px;
        font-weight: 600;
        line-height: 1;
    }

    .more-link {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        margin-top: auto;
        padding-top: 18px;
        color: var(--gold-dark);
        font-size: 14px;
        font-weight: 700;
    }

    .more-link .arrow {
        transition: transform .25s ease;
    }

    .more-link:hover {
        color: var(--gold-dark);
    }

    .more-link:hover .arrow {
        transform: translateX(5px);
    }

    .aside-note {
        margin-top: 24px;
        border-radius: var(--radius);
        border: 1px dashed rgba(180, 131, 47, .45);
        background: rgba(223, 200, 154, .12);
        padding: 20px 24px;
        color: #5d4a2c;
        font-size: 14px;
    }

    .process-wrap {
        display: grid;
        grid-template-columns: 1fr;
        gap: 36px;
    }

    @media (min-width: 1024px) {
        .process-wrap {
            grid-template-columns: 5fr 7fr;
            align-items: center;
            gap: 60px;
        }
    }

    .step-item {
        position: relative;
        padding: 0 0 32px 78px;
    }

    .step-item:last-child {
        padding-bottom: 0;
    }

    .step-item::before {
        content: "";
        position: absolute;
        left: 25px;
        top: 54px;
        bottom: 8px;
        width: 1px;
        background: linear-gradient(to bottom, var(--gold-soft), transparent);
    }

    .step-item:last-child::before {
        display: none;
    }

    .step-num {
        position: absolute;
        left: 0;
        top: 0;
        width: 52px;
        height: 52px;
        border-radius: 16px;
        background: rgba(223, 200, 154, .24);
        border: 1px solid var(--gold-soft);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--gold-dark);
        font-size: 16px;
        font-weight: 800;
        letter-spacing: .06em;
        transition: background .3s ease, color .3s ease, transform .3s ease;
    }

    .step-item:hover .step-num {
        background: var(--gold);
        color: #fff;
        transform: translateY(-2px);
    }

    .step-title {
        margin-bottom: 6px;
        font-size: 17px;
        font-weight: 800;
        color: var(--sand-deep);
    }

    .step-desc {
        color: var(--muted);
        font-size: 14px;
        line-height: 1.85;
    }

    .visual-frame {
        position: relative;
        overflow: hidden;
        border-radius: calc(var(--radius-lg) + 6px);
        box-shadow: var(--shadow-lg);
    }

    .visual-frame img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        min-height: 280px;
    }

    .visual-frame::after {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(to top, rgba(62, 50, 38, .55), rgba(62, 50, 38, 0) 42%);
    }

    .visual-caption {
        position: absolute;
        left: 24px;
        right: 24px;
        bottom: 22px;
        z-index: 2;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 10px;
    }

    .visual-caption span {
        border-radius: 999px;
        border: 1px solid rgba(255, 255, 255, .32);
        background: rgba(62, 50, 38, .55);
        padding: 7px 15px;
        color: #fff;
        font-size: 13px;
        line-height: 1;
        -webkit-backdrop-filter: blur(5px);
        backdrop-filter: blur(5px);
    }

    .scene-layout {
        display: grid;
        grid-template-columns: 1fr;
        gap: 40px;
    }

    @media (min-width: 1024px) {
        .scene-layout {
            grid-template-columns: 4fr 8fr;
            gap: 56px;
        }
    }

    .scene-intro h2 {
        font-size: var(--font-h2);
        margin-bottom: 16px;
        font-weight: 800;
    }

    .scene-intro p {
        color: var(--muted);
        font-size: 15px;
    }

    .scene-intro .more-link {
        margin-top: 22px;
    }

    .scene-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 18px;
    }

    @media (min-width: 768px) {
        .scene-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }

    .scene-card {
        position: relative;
        padding: 28px 30px 26px;
        border-radius: var(--radius-lg);
        background: rgba(255, 253, 248, .96);
        border: 1px solid var(--border);
        box-shadow: 0 6px 20px -16px rgba(63, 48, 27, .24);
        transition: border-color .3s ease, box-shadow .3s ease, transform .3s ease;
    }

    .scene-card:hover {
        border-color: rgba(180, 131, 47, .5);
        box-shadow: var(--shadow);
        transform: translateY(-3px);
    }

    .scene-card::before {
        content: "";
        position: absolute;
        left: 0;
        top: 28px;
        bottom: 28px;
        width: 4px;
        border-radius: 999px;
        background: var(--gold-soft);
        transform: scaleY(.7);
        transform-origin: top;
        transition: transform .3s ease, background .3s ease;
    }

    .scene-card:hover::before {
        transform: scaleY(1);
        background: var(--gold);
    }

    .scene-card h3 {
        margin-bottom: 12px;
        font-size: 18px;
        font-weight: 800;
        color: var(--sand-deep);
    }

    .scene-card p {
        color: var(--muted);
        font-size: 14px;
        line-height: 1.9;
    }

    .assurance-panel {
        position: relative;
        overflow: hidden;
        border-radius: calc(var(--radius-lg) + 10px);
        padding: 56px;
        background-color: var(--forest);
        background-image: repeating-linear-gradient(120deg, rgba(255, 255, 255, .018) 0, rgba(255, 255, 255, .018) 1px, transparent 1px, transparent 10px), linear-gradient(135deg, rgba(180, 131, 47, .18), transparent 55%), url('/assets/images/backpic/back-3.png');
        background-position: center;
        background-size: cover;
        color: #f1efe7;
    }

    .assurance-panel::after {
        content: "";
        pointer-events: none;
        position: absolute;
        right: -80px;
        top: -80px;
        width: 260px;
        height: 260px;
        border-radius: 50%;
        border: 40px solid rgba(223, 200, 154, .08);
    }

    .assurance-panel .eyebrow::before {
        background: var(--gold-soft);
    }

    .assurance-panel .eyebrow {
        color: var(--gold-soft);
    }

    .assurance-panel h2 {
        color: #fff;
        font-size: var(--font-h2);
        font-weight: 800;
    }

    .assurance-sub {
        max-width: 760px;
        margin-top: 14px;
        color: rgba(255, 255, 255, .68);
    }

    .guarantee-grid {
        position: relative;
        z-index: 2;
        display: grid;
        grid-template-columns: 1fr;
        gap: 0;
        margin-top: 48px;
        border-top: 1px solid rgba(255, 255, 255, .12);
    }

    @media (min-width: 768px) {
        .guarantee-grid {
            grid-template-columns: repeat(3, 1fr);
            gap: 0;
        }
    }

    .guarantee-item {
        padding: 28px 28px 0 0;
        border-bottom: 1px solid rgba(255, 255, 255, .12);
    }

    @media (min-width: 768px) {
        .guarantee-item {
            padding: 26px 36px 10px 0;
            border-bottom: 0;
        }
        .guarantee-item+.guarantee-item {
            border-left: 1px solid rgba(255, 255, 255, .12);
            padding-left: 36px;
        }
    }

    .guarantee-item h3 {
        color: #fff;
        font-size: 18px;
        font-weight: 700;
        margin-bottom: 10px;
        letter-spacing: .02em;
    }

    .guarantee-item p {
        color: rgba(255, 255, 255, .62);
        font-size: 14px;
        line-height: 1.9;
    }

    .faq-wrap {
        max-width: 800px;
        margin: 0 auto;
    }

    .faq-item {
        border-bottom: 1px solid rgba(180, 131, 47, .22);
        background: transparent;
        transition: background .3s ease, border-color .3s ease;
    }

    .faq-item+.faq-item {
        margin-top: 0;
    }

    .faq-item:hover {
        background: rgba(223, 200, 154, .1);
    }

    .faq-button {
        position: relative;
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        min-height: 64px;
        padding: 18px 16px;
        border: 0;
        background: transparent;
        color: var(--sand-deep);
        font-size: 17px;
        font-weight: 700;
        text-align: left;
    }

    .faq-icon {
        flex: 0 0 22px;
        position: relative;
        width: 22px;
        height: 22px;
        border-radius: 50%;
        border: 2px solid var(--gold);
        transition: background .3s ease, transform .3s ease;
    }

    .faq-icon::before,
    .faq-icon::after {
        content: "";
        position: absolute;
        left: 50%;
        top: 50%;
        width: 10px;
        height: 2px;
        background: var(--gold-dark);
        border-radius: 999px;
        transform: translate(-50%, -50%);
        transition: background .3s ease;
    }

    .faq-icon::after {
        transform: translate(-50%, -50%) rotate(90deg);
        transition: transform .3s ease, background .3s ease;
    }

    .faq-button:hover .faq-icon {
        background: var(--gold);
    }

    .faq-button:hover .faq-icon::before,
    .faq-button:hover .faq-icon::after {
        background: #fff;
    }

    .faq-item.open .faq-icon {
        background: var(--gold);
    }

    .faq-item.open .faq-icon::before,
    .faq-item.open .faq-icon::after {
        background: #fff;
    }

    .faq-item.open .faq-icon::after {
        transform: translate(-50%, -50%) rotate(0);
    }

    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height .35s ease;
    }

    .faq-answer-inner {
        padding: 0 18px 24px;
        color: var(--muted);
        font-size: 15px;
        line-height: 2;
    }

    .cta-section {
        background: #efe7d6;
        background-image: radial-gradient(rgba(180, 131, 47, .12) 1px, transparent 1px);
        background-size: 22px 22px;
    }

    .cta-panel {
        position: relative;
        display: grid;
        grid-template-columns: 1fr;
        gap: 28px;
        border-radius: var(--radius-lg);
        border: 1px solid var(--border);
        background: var(--card);
        box-shadow: var(--shadow);
        padding: 44px;
        overflow: hidden;
    }

    .cta-panel::before {
        content: "";
        position: absolute;
        left: 0;
        top: 0;
        bottom: 0;
        width: 6px;
        background: var(--gold);
    }

    @media (min-width: 1024px) {
        .cta-panel {
            grid-template-columns: 9fr 3fr;
            align-items: center;
            padding: 52px 56px;
        }
    }

    .cta-panel h2 {
        font-size: clamp(24px, 2.6vw, 34px);
        font-weight: 800;
        margin-bottom: 12px;
    }

    .cta-panel p {
        color: var(--muted);
        font-size: 15px;
        max-width: 720px;
    }

    .cta-actions {
        display: flex;
        flex-direction: column;
        gap: 14px;
        align-items: stretch;
    }

    .site-footer {
        background: var(--forest);
        border-top: 4px solid var(--gold);
        color: rgba(255, 255, 255, .7);
    }

    .site-footer .brand-text {
        color: #fff;
    }

    .site-footer .brand-mark {
        box-shadow: none;
    }

    .footer-title {
        margin-bottom: 22px;
        color: #fffdf8;
        font-size: 15px;
        font-weight: 700;
        letter-spacing: .06em;
    }

    .footer-links {
        font-size: 14px;
        line-height: 2.3;
    }

    .footer-links a {
        color: rgba(255, 255, 255, .68);
    }

    .footer-links a:hover {
        color: var(--gold-soft);
        padding-left: 3px;
    }

    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, .14);
        background: rgba(0, 0, 0, .08);
        padding: 22px 0;
        color: rgba(255, 255, 255, .52);
        font-size: 13px;
        line-height: 1.8;
    }

    @media (max-width: 767px) {
        .wrap {
            padding: 0 20px;
        }
        .page-banner {
            padding: 48px 0 44px;
        }
        .page-banner h1 {
            font-size: 30px;
        }
        .banner-lead {
            font-size: 15px;
        }
        .cta-panel {
            padding: 34px 26px;
        }
        .assurance-panel {
            padding: 36px 24px;
        }
        .cover-grid {
            gap: 18px;
        }
        .card-body {
            padding: 18px;
        }
        .scene-card {
            padding: 22px 24px;
        }
    }

/* roulang page: category2 */
:root {
            --sand: #b4832f;
            --sand-dark: #8f6520;
            --sand-light: #dfc89a;
            --brown: #3e3226;
            --paper: #f4efe5;
            --ink: #2f463a;
            --ink-light: #3d5c4d;
            --card: #fffdf8;
            --line: #e8dcc3;
            --muted: #6f6455;
            --radius: 18px;
            --shadow: 0 10px 30px -14px rgba(63, 48, 27, .25);
            --shadow-hover: 0 22px 44px -18px rgba(63, 48, 27, .32);
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            background: var(--paper);
            color: var(--ink);
            line-height: 1.7;
            letter-spacing: .01em;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        a:focus-visible,
        button:focus-visible,
        summary:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--sand);
            outline-offset: 3px;
            border-radius: 6px;
        }
        .wrap {
            max-width: 1280px;
            margin-inline: auto;
            padding-inline: 1rem;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(244, 239, 229, .88);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(223, 200, 154, .55);
            box-shadow: 0 6px 18px -22px rgba(62, 50, 38, .6);
        }
        .site-header:hover {
            box-shadow: 0 10px 28px -22px rgba(62, 50, 38, .55);
        }
        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--sand);
            color: #fff;
            font-size: 11px;
            font-weight: 800;
            line-height: 1;
            padding: 9px 8px;
            border-radius: 13px;
            letter-spacing: .04em;
            box-shadow: 0 6px 16px -8px rgba(180, 131, 47, .9);
        }
        .brand-text {
            font-size: 19px;
            font-weight: 700;
            color: var(--ink);
            letter-spacing: .02em;
            white-space: nowrap;
        }
        .desktop-nav {
            display: none;
        }
        .mobile-menu {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
            border-top: 1px solid rgba(232, 220, 195, .8);
            background: rgba(244, 239, 229, .97);
        }
        .mobile-menu.is-open {
            max-height: 340px;
            border-bottom: 1px solid rgba(232, 220, 195, .8);
        }
        .mobile-menu nav {
            display: flex;
            flex-direction: column;
            padding: .75rem 1rem 1rem;
        }
        .mobile-link {
            display: flex;
            align-items: center;
            min-height: 48px;
            padding: 0 .5rem;
            font-size: 15px;
            font-weight: 500;
            color: var(--ink);
            border-bottom: 1px solid rgba(232, 220, 195, .5);
        }
        .mobile-link.is-active {
            color: var(--sand-dark);
            font-weight: 700;
        }
        .icon-btn {
            width: 42px;
            height: 42px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 999px;
            border: 1px solid rgba(180, 131, 47, .28);
            background: rgba(255, 253, 248, .75);
            color: var(--ink);
            transition: all .2s ease;
        }
        .icon-btn:hover {
            background: var(--sand-light);
            color: var(--brown);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 44px;
            padding: 0 22px;
            border-radius: 999px;
            background: var(--sand);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: .02em;
            box-shadow: 0 8px 18px -10px rgba(180, 131, 47, .9);
            transition: all .22s ease;
        }
        .nav-cta:hover {
            background: var(--sand-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 22px -10px rgba(180, 131, 47, 1);
        }
        @media (min-width: 1024px) {
            .desktop-nav {
                display: flex;
            }
        }
        .nav-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            min-height: 44px;
            padding: 0 .8rem;
            font-size: 15px;
            font-weight: 500;
            color: var(--ink);
            border-radius: 999px;
            transition: color .2s ease, background .2s ease;
            white-space: nowrap;
        }
        .nav-link:hover {
            background: rgba(223, 200, 154, .28);
            color: var(--sand-dark);
        }
        .nav-link.is-active {
            color: var(--sand-dark);
            font-weight: 700;
        }
        .nav-link.is-active::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: 2px;
            transform: translateX(-50%);
            width: 22px;
            height: 3px;
            background: var(--sand);
            border-radius: 3px;
        }
        .cat-hero {
            background: linear-gradient(100deg, rgba(244, 239, 229, .98) 4%, rgba(244, 239, 229, .94) 38%, rgba(244, 239, 229, .78) 68%, rgba(244, 239, 229, .42) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            border-bottom: 1px solid rgba(223, 200, 154, .5);
            min-height: 62vh;
        }
        .hero-kicker {
            display: inline-flex;
            align-items: center;
            gap: .35rem;
            border: 1px solid rgba(180, 131, 47, .35);
            background: rgba(255, 253, 248, .6);
            color: var(--sand-dark);
            font-size: 13px;
            padding: .4rem 1rem;
            border-radius: 999px;
            font-weight: 600;
            letter-spacing: .04em;
        }
        .cat-hero h1 {
            font-size: clamp(31px, 4.4vw, 54px);
            line-height: 1.16;
            letter-spacing: .01em;
            font-weight: 800;
            color: var(--ink);
            margin: 1.2rem 0 1.25rem;
        }
        .cat-hero .lead {
            font-size: 16px;
            line-height: 1.95;
            color: #4c433a;
            max-width: 700px;
            margin-bottom: 1.75rem;
        }
        .hero-panel {
            border: 1px solid rgba(232, 220, 195, .9);
            background: rgba(255, 253, 248, .66);
            border-radius: 22px;
            padding: 1.35rem;
            box-shadow: var(--shadow);
            backdrop-filter: blur(10px);
            margin-top: 2rem;
        }
        .hero-panel strong {
            color: var(--sand-dark);
            font-size: 14px;
            font-weight: 700;
        }
        .hero-panel p {
            color: #4c433a;
            font-size: 13px;
            line-height: 1.9;
            margin-top: .6rem;
            margin-bottom: 0;
        }
        .stat-chip {
            display: inline-flex;
            align-items: center;
            gap: .45rem;
            font-size: 12px;
            font-weight: 600;
            color: var(--brown);
            background: rgba(223, 200, 154, .22);
            border: 1px solid rgba(180, 131, 47, .25);
            border-radius: 999px;
            padding: .4rem .85rem;
        }
        .btn-gold {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 48px;
            padding: 0 28px;
            border-radius: 999px;
            background: var(--sand);
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            border: 1px solid transparent;
            box-shadow: 0 8px 22px -12px rgba(180, 131, 47, .9);
            transition: transform .22s ease, background .22s ease, box-shadow .22s ease;
        }
        .btn-gold:hover {
            background: var(--sand-dark);
            transform: translateY(-2px);
            box-shadow: 0 14px 26px -12px rgba(143, 101, 32, .7);
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 48px;
            padding: 0 28px;
            border-radius: 999px;
            border: 1px solid rgba(62, 50, 38, .35);
            color: var(--brown);
            background: transparent;
            font-size: 15px;
            font-weight: 600;
            transition: all .22s ease;
        }
        .btn-ghost:hover {
            background: rgba(223, 200, 154, .24);
            border-color: var(--sand);
            transform: translateY(-2px);
        }
        .section-pad {
            padding-top: 4.6rem;
            padding-bottom: 4.6rem;
        }
        .eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: .14em;
            color: var(--sand-dark);
            text-transform: uppercase;
            margin-bottom: .6rem;
        }
        .section-title {
            font-size: clamp(25px, 3vw, 38px);
            line-height: 1.25;
            font-weight: 800;
            color: var(--ink);
            letter-spacing: .01em;
        }
        .section-lead {
            font-size: 15px;
            line-height: 1.9;
            color: #5e5448;
            max-width: 820px;
        }
        .cap-row {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
            margin-top: 2rem;
            border: 1px solid rgba(232, 220, 195, .9);
            border-radius: var(--radius);
            background: var(--card);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: box-shadow .3s ease, transform .3s ease, border-color .3s ease;
        }
        .cap-row:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(180, 131, 47, .35);
            transform: translateY(-4px);
        }
        .cap-figure {
            position: relative;
            min-height: 220px;
            overflow: hidden;
        }
        .cap-figure img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .6s ease;
        }
        .cap-row:hover .cap-figure img {
            transform: scale(1.04);
        }
        .cap-content {
            padding: 1.5rem 1.4rem 1.7rem;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .cap-index {
            width: 44px;
            height: 44px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(180, 131, 47, .11);
            color: var(--sand-dark);
            border-radius: 14px;
            font-weight: 800;
            font-size: 15px;
            margin-bottom: .85rem;
            border: 1px solid rgba(180, 131, 47, .18);
        }
        .cap-content h3 {
            margin: 0 0 .7rem;
            font-size: 20px;
            font-weight: 800;
            color: var(--ink);
        }
        .cap-content p {
            margin: 0 0 1.15rem;
            font-size: 15px;
            line-height: 1.95;
            color: #4f463b;
        }
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: .45rem .6rem;
        }
        .tag-list span {
            padding: .3rem .75rem;
            border-radius: 8px;
            border: 1px solid rgba(223, 200, 154, .9);
            background: rgba(223, 200, 154, .14);
            color: #4c433a;
            font-size: 12px;
            font-weight: 500;
        }
        @media (min-width: 1024px) {
            .cap-row {
                grid-template-columns: 5fr 7fr;
                gap: 0;
                align-items: stretch;
                margin-top: 1.3rem;
            }
            .cap-content {
                padding: 2.4rem 2.8rem;
            }
            .cap-row:nth-child(even) .cap-figure {
                order: 2;
            }
            .cap-row:nth-child(even) .cap-content {
                order: 1;
            }
            .section-pad {
                padding-top: 6rem;
                padding-bottom: 6rem;
            }
        }
        .process-grid {
            display: grid;
            grid-template-columns: repeat(1, 1fr);
            gap: 1.25rem;
            margin-top: 2rem;
        }
        @media (min-width: 768px) {
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .process-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }
        .step-card {
            background: var(--card);
            border: 1px solid rgba(232, 220, 195, .95);
            border-radius: var(--radius);
            padding: 1.6rem 1.4rem 1.7rem;
            box-shadow: var(--shadow);
            transition: all .25s ease;
            position: relative;
            overflow: hidden;
        }
        .step-card::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            height: 100%;
            width: 4px;
            background: var(--sand);
            transform: scaleY(0);
            transform-origin: bottom;
            transition: transform .3s ease;
        }
        .step-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .step-card:hover::before {
            transform: scaleY(1);
        }
        .step-no {
            font-size: 28px;
            font-weight: 800;
            color: rgba(180, 131, 47, .28);
            letter-spacing: .05em;
        }
        .step-card h3 {
            margin: .85rem 0 .6rem;
            font-size: 17px;
            font-weight: 700;
            color: var(--ink);
        }
        .step-card p {
            font-size: 14px;
            line-height: 1.88;
            color: #5e5448;
            margin: 0;
        }
        .scene-section {
            background: linear-gradient(120deg, rgba(47, 70, 58, .98), rgba(47, 70, 58, .88)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            border-radius: 0;
            color: #f4efe5;
        }
        .scene-section .section-title {
            color: #fff8e8;
        }
        .scene-section .section-lead {
            color: rgba(244, 239, 229, .78);
        }
        .scene-list {
            display: grid;
            gap: 1rem;
            grid-template-columns: 1fr;
            list-style: none;
            padding: 0;
            margin: 2rem 0 0;
        }
        @media (min-width: 768px) {
            .scene-list {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        .scene-item {
            border: 1px solid rgba(223, 200, 154, .24);
            background: rgba(255, 253, 248, .06);
            border-radius: 18px;
            padding: 1.35rem 1.4rem;
            transition: all .25s ease;
            backdrop-filter: blur(7px);
        }
        .scene-item:hover {
            background: rgba(223, 200, 154, .12);
            transform: translateY(-4px);
        }
        .scene-item h3 {
            margin: 0 0 .5rem;
            color: #f7e6bf;
            font-size: 17px;
            font-weight: 700;
        }
        .scene-item p {
            margin: 0;
            color: rgba(244, 239, 229, .78);
            font-size: 14px;
            line-height: 1.85;
        }
        .scene-visual {
            border-radius: 22px;
            overflow: hidden;
            box-shadow: 0 22px 50px -22px rgba(0, 0, 0, .5);
        }
        .scene-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .quality-band {
            background: var(--brown);
            border-radius: 0;
        }
        .quality-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
            margin-top: 2rem;
        }
        @media (min-width: 1024px) {
            .quality-grid {
                grid-template-columns: 5fr 6fr;
                align-items: center;
                gap: 4rem;
            }
        }
        .quality-grid h2 {
            color: #fff8e8;
            max-width: 540px;
        }
        .quality-grid p {
            color: rgba(244, 239, 229, .72);
            font-size: 15px;
        }
        .quality-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
        }
        .quality-line {
            display: flex;
            gap: .9rem;
            align-items: flex-start;
            background: rgba(244, 239, 229, .06);
            border: 1px solid rgba(223, 200, 154, .2);
            border-radius: 18px;
            padding: 1.15rem 1.2rem;
            transition: background .2s ease;
        }
        .quality-line:hover {
            background: rgba(223, 200, 154, .1);
        }
        .quality-check {
            width: 28px;
            height: 28px;
            flex: 0 0 28px;
            border-radius: 50%;
            background: rgba(180, 131, 47, .24);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #f2d28a;
            font-weight: 800;
            font-size: 13px;
        }
        .quality-line strong {
            display: block;
            color: #f1e0bd;
            margin-bottom: .25rem;
            font-weight: 700;
        }
        .quality-line span {
            color: rgba(244, 239, 229, .68);
            font-size: 14px;
            line-height: 1.7;
        }
        .faq-block {
            max-width: 860px;
            margin-inline: auto;
        }
        .faq-item {
            background: var(--card);
            border-radius: 18px;
            border: 1px solid rgba(232, 220, 195, .9);
            margin-bottom: 1rem;
            overflow: hidden;
            box-shadow: 0 8px 24px -24px rgba(63, 48, 27, .3);
            transition: box-shadow .25s ease, transform .25s ease;
        }
        .faq-item:hover {
            border-color: rgba(180, 131, 47, .4);
            box-shadow: var(--shadow);
        }
        .faq-item summary {
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            padding: 1.25rem 1.4rem;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            cursor: pointer;
            min-height: 60px;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-icon {
            width: 30px;
            height: 30px;
            flex: 0 0 30px;
            border-radius: 50%;
            border: 1px solid rgba(180, 131, 47, .4);
            color: var(--sand-dark);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            transition: transform .3s ease, background .25s ease;
        }
        .faq-item[open] .faq-icon {
            transform: rotate(45deg);
            background: var(--sand);
            color: #fff;
            border-color: var(--sand);
        }
        .faq-item p {
            margin: 0;
            padding: 0 1.4rem 1.4rem;
            font-size: 15px;
            line-height: 1.95;
            color: #4f463b;
        }
        .cta-area {
            background: linear-gradient(135deg, rgba(47, 70, 58, .98), rgba(62, 50, 38, .96)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #f4efe5;
            border-radius: 0;
        }
        .cta-area .section-title {
            color: #fff8e8;
        }
        .cta-area p {
            color: rgba(244, 239, 229, .72);
        }
        .cta-info {
            border-top: 1px solid rgba(223, 200, 154, .2);
            border-bottom: 1px solid rgba(223, 200, 154, .2);
            border-radius: 0;
            padding: 1.25rem 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 1.2rem;
        }
        .cta-phone {
            font-size: 22px;
            font-weight: 800;
            color: #f2d28a;
            letter-spacing: .03em;
        }
        .site-footer {
            background: var(--ink);
            color: #f4efe5;
            border-top: 1px solid rgba(223, 200, 154, .15);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(223, 200, 154, .2);
            margin-top: 1.5rem;
            padding-top: 1.5rem;
            padding-bottom: 1.5rem;
            background: rgba(0, 0, 0, .12);
        }
        .footer-title {
            color: #f1e0bd;
            font-size: 14px;
            font-weight: 700;
            letter-spacing: .08em;
            margin-bottom: 1.1rem;
        }
        .footer-links a {
            color: rgba(244, 239, 229, .68);
            font-size: 14px;
            line-height: 2.3;
            transition: color .2s ease, padding-left .2s ease;
        }
        .footer-links a:hover {
            color: #f2d28a;
            padding-left: 4px;
        }
        .footer-links p {
            color: rgba(244, 239, 229, .68);
            font-size: 14px;
        }
        .site-footer .brand-text {
            color: #fff8e8;
        }

/* roulang page: category3 */
:root {
            --gold: #b4832f;
            --gold-deep: #8f6420;
            --sand: #3e3226;
            --paper: #f4efe5;
            --paper-light: #faf6ee;
            --green: #2f463a;
            --green-dark: #1f322a;
            --light-gold: #dfc89a;
            --border: #e3d5b8;
            --alert-green: #2f6b4f;
            --radius: 20px;
            --radius-sm: 14px;
            --shadow: 0 18px 40px -26px rgba(63, 48, 27, .35);
            --shadow-deep: 0 24px 60px -30px rgba(52, 38, 21, .42);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            background: var(--paper);
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            letter-spacing: .01em;
            -webkit-font-smoothing: antialiased;
            color: #2d2d27;
        }
        img {
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        button {
            font-family: inherit;
        }
        .wrap {
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }
        @media (min-width: 768px) {
            .wrap {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 80;
            background: rgba(244, 239, 229, .92);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(227, 213, 184, .8);
            transition: box-shadow .3s, background .3s;
        }
        .site-header.is-scrolled {
            background: rgba(250, 246, 238, .96);
            box-shadow: 0 12px 34px -26px rgba(63, 48, 27, .55);
        }
        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 54px;
            height: 34px;
            padding: 0 .55rem;
            border-radius: 10px;
            background: var(--gold);
            color: #fff8ea;
            font-weight: 700;
            font-size: .95rem;
            letter-spacing: .02em;
            box-shadow: 0 10px 24px -16px rgba(180, 131, 47, .9);
        }
        .brand-text {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--green);
            letter-spacing: .06em;
        }
        .desktop-nav {
            display: none;
            margin-left: .65rem;
        }
        @media (min-width: 1024px) {
            .desktop-nav {
                display: inline-flex;
            }
        }
        .nav-link {
            position: relative;
            padding: .55rem .85rem;
            border-radius: 999px;
            font-size: .94rem;
            font-weight: 500;
            color: #4e4a42;
            transition: color .2s, background .2s;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--green);
            background: rgba(223, 200, 154, .3);
        }
        .nav-link.is-active {
            color: var(--gold-deep);
            font-weight: 600;
            background: rgba(223, 200, 154, .34);
        }
        .nav-link.is-active::after {
            content: '';
            position: absolute;
            left: 50%;
            bottom: 2px;
            transform: translateX(-50%);
            width: 16px;
            height: 3px;
            border-radius: 999px;
            background: var(--gold);
        }
        .icon-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 999px;
            border: 1px solid transparent;
            color: var(--green);
            background: transparent;
            transition: all .2s;
        }
        .icon-btn:hover {
            background: rgba(223, 200, 154, .42);
            border-color: rgba(180, 131, 47, .24);
        }
        .icon-btn:focus-visible,
        .nav-cta:focus-visible,
        .btn-primary:focus-visible,
        .btn-outline:focus-visible,
        .btn-light:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 3px;
            border-radius: 8px;
        }
        .nav-cta {
            display: none;
            align-items: center;
            height: 42px;
            padding: 0 1.1rem;
            border-radius: 999px;
            background: var(--green);
            color: #f8f2e4;
            font-size: .93rem;
            font-weight: 600;
            transition: background .2s, transform .2s, box-shadow .2s;
        }
        @media (min-width: 1024px) {
            .nav-cta {
                display: inline-flex;
            }
        }
        .nav-cta:hover {
            background: #263f34;
            transform: translateY(-1px);
            box-shadow: 0 16px 26px -18px rgba(47, 70, 58, .7);
        }
        .mobile-trigger {
            display: inline-flex;
        }
        @media (min-width: 1024px) {
            .mobile-trigger {
                display: none;
            }
        }
        .mobile-menu {
            display: none;
            background: rgba(250, 246, 238, .98);
            border-top: 1px solid var(--border);
            padding: .5rem 1.1rem 1rem;
        }
        .mobile-menu.is-open {
            display: block;
        }
        .mobile-link {
            display: block;
            line-height: 48px;
            border-bottom: 1px solid rgba(227, 213, 184, .6);
            color: #464238;
            font-weight: 500;
        }
        .mobile-link.is-active {
            color: var(--gold-deep);
            font-weight: 700;
        }
        .mobile-link:last-child {
            border-bottom: 0;
        }

        /* page hero */
        .page-hero {
            position: relative;
            overflow: hidden;
            background: url('/assets/images/backpic/back-1.png') center 30% / cover no-repeat;
            border-bottom: 1px solid rgba(227, 213, 184, .8);
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(244, 239, 229, .96) 0%, rgba(244, 239, 229, .86) 42%, rgba(244, 239, 229, .58) 100%);
        }
        .page-hero .wrap {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            font-size: .85rem;
            color: rgba(62, 50, 38, .72);
            display: flex;
            flex-wrap: wrap;
            gap: .3rem .5rem;
        }
        .breadcrumb a {
            color: rgba(62, 50, 38, .52);
            transition: color .2s;
        }
        .breadcrumb a:hover {
            color: var(--gold-deep);
        }
        .page-hero h1 {
            color: var(--green);
            font-weight: 800;
            letter-spacing: .01em;
            line-height: 1.2;
            max-width: 900px;
        }
        .hero-line {
            width: 60px;
            height: 4px;
            border-radius: 99px;
            background: var(--gold);
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: .4rem;
            border-radius: 999px;
            background: rgba(180, 131, 47, .13);
            border: 1px solid rgba(180, 131, 47, .35);
            padding: .4rem .8rem;
            font-size: .82rem;
            font-weight: 600;
            color: #745625;
        }

        /* buttons */
        .btn-primary,
        .btn-outline,
        .btn-light {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            border-radius: 999px;
            padding: 0 1.5rem;
            height: 46px;
            font-size: .96rem;
            font-weight: 600;
            transition: all .2s ease;
            border: 1px solid transparent;
        }
        .btn-primary {
            background: var(--gold);
            color: #fff9ee;
            box-shadow: 0 16px 34px -20px rgba(180, 131, 47, .75);
        }
        .btn-primary:hover {
            background: var(--gold-deep);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 20px 38px -18px rgba(143, 100, 32, .55);
        }
        .btn-outline {
            background: transparent;
            border-color: rgba(62, 50, 38, .36);
            color: #3e3226;
        }
        .btn-outline:hover {
            background: rgba(180, 131, 47, .12);
            border-color: rgba(180, 131, 47, .55);
            transform: translateY(-1px);
        }
        .btn-light {
            background: #f8f1df;
            color: var(--green-dark);
            box-shadow: 0 16px 32px -22px rgba(0, 0, 0, .45);
        }
        .btn-light:hover {
            background: #fff;
            color: var(--gold-deep);
            transform: translateY(-2px);
        }

        /* doc nav */
        .doc-nav {
            border-radius: var(--radius);
            background: #faf5ea;
            border: 1px solid var(--border);
            padding: 1.2rem;
            box-shadow: var(--shadow);
        }
        .doc-nav-title {
            display: block;
            font-weight: 700;
            font-size: .92rem;
            color: var(--green);
            margin-bottom: .7rem;
            letter-spacing: .06em;
        }
        .doc-link {
            display: flex;
            align-items: center;
            gap: .75rem;
            padding: .85rem .85rem;
            border-radius: 14px;
            color: #51483f;
            font-weight: 500;
            border-left: 3px solid transparent;
            background: transparent;
            transition: background .2s, border-color .2s, color .2s;
        }
        .doc-link .doc-num {
            width: 30px;
            height: 30px;
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(223, 200, 154, .36);
            color: #6d5329;
            font-size: .78rem;
            font-weight: 700;
            flex: 0 0 30px;
            transition: all .2s;
        }
        .doc-link:hover {
            background: rgba(180, 131, 47, .1);
            color: var(--green);
        }
        .doc-link.is-active {
            color: var(--gold-deep);
            border-left-color: var(--gold);
            background: rgba(180, 131, 47, .07);
            font-weight: 600;
        }
        .doc-link.is-active .doc-num {
            background: var(--gold);
            color: #fff;
        }
        .doc-aside-note {
            border-radius: 14px;
            background: var(--green);
            color: rgba(255, 255, 255, .88);
        }

        /* accordion */
        .acc-item {
            border: 1px solid var(--border);
            border-radius: 16px;
            background: #fdf9f0;
            margin-bottom: .9rem;
            transition: box-shadow .25s, border-color .25s;
            overflow: hidden;
        }
        .acc-item:hover {
            border-color: rgba(180, 131, 47, .5);
            box-shadow: 0 12px 30px -24px rgba(63, 48, 27, .45);
        }
        .acc-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            list-style: none;
            cursor: pointer;
            padding: 1.2rem 1.3rem;
            font-weight: 600;
            color: #3d392f;
            transition: background .2s;
        }
        .acc-item summary::-webkit-details-marker {
            display: none;
        }
        .acc-item summary:hover {
            background: rgba(223, 200, 154, .16);
        }
        .acc-item[open] summary {
            background: rgba(223, 200, 154, .2);
        }
        .acc-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid rgba(180, 131, 47, .4);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--gold-deep);
            font-size: 1.25rem;
            font-weight: 400;
            line-height: 1;
            transition: transform .3s;
            flex: 0 0 28px;
        }
        .acc-item[open] .acc-icon {
            transform: rotate(45deg);
        }
        .acc-content {
            padding: .2rem 1.3rem 1.3rem;
            color: #5e574c;
            line-height: 1.9;
            font-size: .95rem;
        }
        .acc-content p {
            margin-top: .4rem;
            margin-bottom: .6rem;
        }

        /* quality panel */
        .quality-step {
            scroll-margin-top: 110px;
            border-radius: 24px;
            padding: 1.1rem 1.1rem .2rem;
            background: rgba(255, 252, 244, .62);
            border: 1px solid rgba(227, 213, 184, .6);
            transition: border-color .25s;
        }
        .quality-step:hover {
            border-color: rgba(180, 131, 47, .35);
        }
        .step-title {
            display: flex;
            align-items: center;
            gap: .7rem;
            margin-bottom: .25rem;
        }
        .step-title .dot-line {
            width: 34px;
            height: 3px;
            background: var(--gold);
            border-radius: 99px;
        }

        .section-head {
            display: flex;
            flex-direction: column;
            gap: .5rem;
            max-width: 780px;
        }
        .section-head .eyebrow {
            font-size: .82rem;
            letter-spacing: .14em;
            color: var(--gold-deep);
            font-weight: 700;
        }
        .section-head h2 {
            color: var(--green);
            line-height: 1.25;
            letter-spacing: .01em;
            font-weight: 800;
        }
        .section-kicker {
            color: rgba(62, 50, 38, .62);
            line-height: 1.9;
        }

        /* capability grid cards */
        .cap-card {
            border-radius: var(--radius);
            background: #fdf8ee;
            border: 1px solid var(--border);
            padding: 1.4rem;
            transition: all .3s ease;
            position: relative;
            overflow: hidden;
        }
        .cap-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 0;
            background: var(--gold);
            transition: height .3s;
        }
        .cap-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-deep);
        }
        .cap-card:hover::before {
            height: 72px;
        }
        .cap-icon {
            width: 44px;
            height: 44px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 13px;
            background: rgba(223, 200, 154, .5);
            color: #6d5329;
        }

        /* scenes row */
        .scene-row {
            display: grid;
            grid-template-columns: 1fr;
            border-bottom: 1px solid var(--border);
            transition: background .2s;
            border-radius: 6px;
        }
        .scene-row:hover {
            background: rgba(223, 200, 154, .18);
        }
        @media (min-width: 992px) {
            .scene-row {
                grid-template-columns: 220px 1fr;
                gap: 1rem;
            }
        }
        .scene-index {
            font-size: 1.4rem;
            color: rgba(180, 131, 47, .55);
            font-weight: 800;
            letter-spacing: .06em;
            transition: color .2s, font-size .2s;
        }
        .scene-row:hover .scene-index {
            font-size: 1.7rem;
            color: var(--gold-deep);
        }

        /* price / cooperation */
        .coop-card {
            border-radius: 22px;
            padding: 1.7rem;
            background: #fdf8ee;
            border: 1px solid var(--border);
            transition: all .3s ease;
            position: relative;
        }
        .coop-card.is-center {
            background: var(--green);
            border-color: var(--green);
            color: rgba(255, 255, 255, .88);
            transform: translateY(-4px);
            box-shadow: 0 32px 70px -44px rgba(31, 50, 42, .75);
        }
        .coop-card.is-center:hover {
            transform: translateY(-8px);
        }
        .coop-card:not(.is-center):hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-deep);
        }
        .coop-name {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--green);
        }
        .is-center .coop-name {
            color: #ffffff;
        }
        .coop-list {
            margin-top: 1rem;
            display: grid;
            gap: .65rem;
            line-height: 1.6;
        }
        .coop-list li {
            position: relative;
            padding-left: 1.15rem;
            font-size: .93rem;
        }
        .coop-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: .55em;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--gold);
        }
        .is-center .coop-list li::before {
            background: var(--light-gold);
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--border);
            background: #fdf8ee;
            border-radius: 16px;
            overflow: hidden;
            margin-bottom: .8rem;
            transition: all .25s;
        }
        .faq-item:hover {
            border-color: rgba(180, 131, 47, .55);
            box-shadow: 0 12px 26px -22px rgba(63, 48, 27, .5);
        }
        .faq-item summary {
            padding: 1.05rem 1.2rem;
            list-style: none;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: #3d392f;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item[open] summary {
            color: var(--gold-deep);
        }
        .faq-content {
            padding: .1rem 1.2rem 1.2rem;
            color: #625a4d;
            line-height: 1.85;
            font-size: .95rem;
        }
        .faq-icon {
            flex: 0 0 28px;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--gold-deep);
            transition: transform .3s;
            line-height: 1;
        }
        .faq-item[open] .faq-icon {
            transform: rotate(45deg);
            background: var(--green);
            color: #fff;
            border-color: var(--green);
        }

        /* cta band */
        .cta-band {
            position: relative;
            overflow: hidden;
            background: url('/assets/images/backpic/back-2.png') center / cover no-repeat;
        }
        .cta-band::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(115deg, rgba(31, 50, 42, .98) 0%, rgba(47, 70, 58, .93) 52%, rgba(62, 50, 38, .88) 100%);
        }
        .cta-band .wrap {
            position: relative;
            z-index: 2;
        }

        .site-footer {
            background: #1f322a;
            color: #e7e2d4;
        }
        .site-footer .footer-title {
            font-size: .9rem;
            font-weight: 600;
            letter-spacing: .08em;
            margin-bottom: .85rem;
            color: var(--light-gold);
        }
        .site-footer .footer-links a,
        .site-footer .footer-links p {
            font-size: .9rem;
            line-height: 2.4;
            color: rgba(255, 255, 255, .58);
            transition: color .2s;
        }
        .site-footer .footer-links a:hover {
            color: var(--light-gold);
        }
        .footer-bottom {
            border-top: 1px solid rgba(223, 200, 154, .22);
            padding: 1.15rem 0;
            font-size: .84rem;
            color: rgba(255, 255, 255, .42);
        }

        /* responsive helpers */
        .quality-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
        }
        @media (min-width: 1024px) {
            .quality-grid {
                grid-template-columns: 3fr 9fr;
                gap: 3rem;
            }
        }
        .scrollspy-doc {
            position: sticky;
            top: 96px;
        }

        @media (max-width: 520px) {
            .brand-text {
                font-size: .96rem;
            }
            .brand-mark {
                min-width: 48px;
                height: 30px;
                font-size: .85rem;
            }
        }

/* roulang page: category4 */
:root {
            --sand: #b4832f;
            --sand-deep: #8a6420;
            --sand-soft: #dfc89a;
            --bronze: #3e3226;
            --pine: #2f463a;
            --pine-deep: #1f352b;
            --paper: #f4efe5;
            --card-bg: #fbf8f2;
            --ink: #35302b;
            --muted: #726657;
            --line: #e8dcc3;
            --hair: #eadfcb;
            --shadow-soft: 0 10px 30px -14px rgba(63, 48, 27, .25);
            --shadow-hover: 0 18px 36px -16px rgba(63, 48, 27, .34);
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background: var(--paper);
            color: var(--ink);
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }

        a:focus-visible,
        button:focus-visible,
        summary:focus-visible {
            outline: 2px solid var(--sand);
            outline-offset: 3px;
            border-radius: 6px;
        }

        .wrap {
            max-width: 1280px;
            margin-inline: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 768px) {
            .wrap {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 55;
            background: rgba(244, 239, 229, .82);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid transparent;
            transition: background .3s, box-shadow .3s;
        }

        .site-header.is-scrolled {
            background: rgba(244, 239, 229, .94);
            border-bottom-color: rgba(229, 217, 191, .8);
            box-shadow: 0 8px 24px -18px rgba(46, 43, 38, .25);
        }

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: .9rem;
            letter-spacing: .04em;
            color: #fff;
            background: linear-gradient(145deg, #9a7428, #6f5119);
            padding: .45rem .68rem;
            border-radius: .75rem;
            line-height: 1;
            box-shadow: 0 8px 16px -8px rgba(106, 80, 27, .6);
        }

        .brand-text {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--bronze);
            letter-spacing: .02em;
            white-space: nowrap;
        }

        .desktop-nav {
            display: none;
        }

        .nav-link {
            position: relative;
            font-size: .95rem;
            font-weight: 500;
            color: #5e5345;
            padding: .48rem .8rem;
            border-radius: .55rem;
            transition: color .25s, background .25s;
        }

        .nav-link:hover {
            color: var(--pine);
            background: rgba(180, 131, 47, .08);
        }

        .nav-link.is-active {
            color: var(--pine);
            font-weight: 600;
        }

        .nav-link.is-active::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: -2px;
            height: 2px;
            border-radius: 2px;
            background: var(--sand);
        }

        .icon-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 999px;
            background: transparent;
            color: var(--pine);
            border: 1px solid transparent;
            transition: background .2s, border-color .2s;
        }

        .icon-btn:hover {
            background: rgba(180, 131, 47, .12);
            border-color: var(--sand-soft);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--pine);
            color: #fff;
            font-size: .92rem;
            font-weight: 600;
            border-radius: 999px;
            padding: .62rem 1.3rem;
            box-shadow: 0 10px 18px -12px rgba(47, 70, 58, .8);
            transition: background .25s, transform .25s, box-shadow .25s;
        }

        .nav-cta:hover {
            background: var(--pine-deep);
            transform: translateY(-1px);
            box-shadow: 0 14px 22px -12px rgba(47, 70, 58, .7);
        }

        @media (min-width: 1024px) {
            .desktop-nav {
                display: flex;
                margin-left: .6rem;
            }

            .mobile-trigger {
                display: none;
            }
        }

        @media (max-width: 1023.98px) {
            .nav-cta {
                display: none;
            }
        }

        .mobile-menu {
            display: none;
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
            background: var(--paper);
        }

        .mobile-menu.open {
            max-height: 480px;
            border-top: 1px solid var(--hair);
        }

        .mobile-menu nav {
            padding: .6rem 1.25rem 1.1rem;
        }

        .mobile-link {
            display: block;
            padding: .8rem .1rem;
            font-size: 1rem;
            border-bottom: 1px dashed var(--hair);
            color: #4f463c;
        }

        .mobile-link:last-child {
            border-bottom: 0;
        }

        .mobile-link.is-active {
            color: var(--pine);
            font-weight: 700;
        }

        .page-hero {
            position: relative;
            overflow: hidden;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
        }

        .hero-dimmer {
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(244, 239, 229, .98) 0%, rgba(244, 239, 229, .92) 42%, rgba(244, 239, 229, .5) 78%, rgba(244, 239, 229, .2) 100%);
        }

        .section-title {
            margin: 0;
            font-size: clamp(1.65rem, 2.8vw, 2.3rem);
            line-height: 1.26;
            font-weight: 800;
            color: var(--pine);
            letter-spacing: .01em;
        }

        .section-kicker {
            display: inline-block;
            font-size: .82rem;
            font-weight: 700;
            letter-spacing: .14em;
            color: var(--sand);
            padding: .28rem .75rem;
            border-radius: 999px;
            background: rgba(180, 131, 47, .1);
            border: 1px solid rgba(180, 131, 47, .25);
        }

        .lead-text {
            font-size: 1rem;
            color: var(--muted);
            line-height: 1.85;
        }

        @media (min-width: 1024px) {
            .lead-text {
                font-size: 1.05rem;
            }
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            background: var(--sand-deep);
            color: #fff;
            font-weight: 600;
            padding: .82rem 1.7rem;
            border-radius: 999px;
            box-shadow: 0 12px 22px -12px rgba(138, 100, 32, .7);
            transition: background .25s, transform .25s, box-shadow .25s;
            border: 1px solid transparent;
        }

        .btn-primary:hover {
            background: #6f4f18;
            transform: translateY(-2px);
            box-shadow: 0 16px 28px -14px rgba(138, 100, 32, .6);
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            background: transparent;
            border: 1px solid rgba(47, 70, 58, .62);
            color: var(--pine);
            font-weight: 600;
            padding: .76rem 1.55rem;
            border-radius: 999px;
            transition: background .2s, transform .2s;
        }

        .btn-ghost:hover {
            background: rgba(47, 70, 58, .08);
            transform: translateY(-1px);
        }

        .btn-light {
            background: #f7f1e5;
            color: var(--pine);
        }

        .btn-light:hover {
            background: #fff;
        }

        .btn-outline-light {
            border-color: rgba(255, 255, 255, .7);
            color: #fff;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .12);
            border-color: #fff;
            color: #fff;
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: .4rem;
            color: var(--pine);
            font-size: .95rem;
            font-weight: 600;
        }

        .text-link span {
            transition: transform .25s;
        }

        .text-link:hover span {
            transform: translateX(5px);
        }

        .card {
            background: var(--card-bg);
            border: 1px solid var(--line);
            border-radius: 1.15rem;
            box-shadow: var(--shadow-soft);
            transition: box-shadow .3s, transform .3s;
        }

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

        .feature-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 50px;
            height: 50px;
            border-radius: 1rem;
            background: rgba(180, 131, 47, .12);
            color: var(--sand-deep);
        }

        .media-box {
            aspect-ratio: 4 / 3;
            overflow: hidden;
            background: #e5dcc8;
        }

        .media-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .grad-overlay {
            background: linear-gradient(to top, rgba(62, 50, 38, .94) 8%, rgba(62, 50, 38, .58) 52%, rgba(62, 50, 38, .16) 100%);
        }

        .section-tint {
            background: #f0e7d7;
        }

        .resource-row {
            display: grid;
            grid-template-columns: 1fr;
            background: var(--card-bg);
            border: 1px solid var(--line);
            border-radius: 1.35rem;
            overflow: hidden;
            box-shadow: var(--shadow-soft);
            transition: box-shadow .3s, transform .3s;
        }

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

        .resource-media {
            min-height: 220px;
            height: 100%;
            background: #e7dcc6;
        }

        .resource-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .resource-info {
            padding: 1.4rem;
        }

        @media (min-width: 768px) {
            .resource-info {
                padding: 2rem 2.2rem;
            }
        }

        .res-index {
            font-size: .95rem;
            font-weight: 800;
            letter-spacing: .08em;
            color: #fff;
            background: var(--sand-deep);
            border-radius: 999px;
            padding: .2rem .8rem;
            display: inline-block;
            margin-bottom: .8rem;
        }

        .res-list {
            margin-top: .8rem;
            padding-left: 0;
            list-style: none;
        }

        .res-list li {
            position: relative;
            padding: .3rem 0 .3rem 1.2rem;
            color: #655a4e;
            font-size: .95rem;
        }

        .res-list li::before {
            content: "";
            position: absolute;
            left: 0;
            top: .82rem;
            width: 7px;
            height: 7px;
            background: var(--sand);
            border-radius: 50%;
        }

        .scene-item {
            display: grid;
            grid-template-columns: 1fr;
            gap: .5rem 1rem;
            padding: 1.15rem 1rem 1.15rem 1.2rem;
            border-left: 3px solid transparent;
            background: #faf6ee;
            border-radius: 1rem;
            transition: border-color .25s, background .25s;
        }

        .scene-item:hover {
            border-left-color: var(--sand);
            background: #fffdf8;
        }

        .scene-no {
            font-size: 2.1rem;
            font-weight: 800;
            line-height: 1;
            color: #d8c9a8;
            transition: color .25s, transform .3s;
        }

        .scene-item:hover .scene-no {
            color: var(--sand);
            transform: translateY(-2px);
        }

        @media (min-width: 768px) {
            .scene-item {
                grid-template-columns: 68px 1fr;
                gap: 1.1rem;
            }

            .scene-no {
                font-size: 2.4rem;
            }
        }

        .flow-step {
            background: #faf6ee;
            border: 1px solid var(--line);
            border-radius: 1.2rem;
            padding: 1.1rem;
            transition: background .3s, box-shadow .3s, transform .3s;
        }

        .flow-step:hover {
            background: #fff;
            box-shadow: var(--shadow-soft);
            transform: translateY(-3px);
        }

        .flow-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 999px;
            background: rgba(180, 131, 47, .14);
            color: var(--sand-deep);
            font-weight: 800;
            font-size: .85rem;
            margin-bottom: .9rem;
        }

        .faq-box {
            max-width: 820px;
            margin-left: auto;
            margin-right: auto;
            background: #fbf8f2;
            border: 1px solid var(--line);
            border-radius: 1.25rem;
            overflow: hidden;
        }

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

        .faq-item:last-child {
            border-bottom: 0;
        }

        .faq-summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            list-style: none;
            cursor: pointer;
            padding: 1.15rem 1.3rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--bronze);
            line-height: 1.5;
            transition: background .25s, padding-left .25s;
        }

        .faq-summary:hover {
            background: rgba(180, 131, 47, .06);
            padding-left: 1.45rem;
        }

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

        .faq-summary::after {
            content: "+";
            font-size: 1.7rem;
            font-weight: 300;
            line-height: 1;
            color: var(--sand);
            flex: none;
            transition: transform .25s;
        }

        .faq-item[open] .faq-summary::after {
            content: "–";
            transform: rotate(90deg);
        }

        .faq-answer {
            padding: 0 1.3rem 1.2rem;
            color: #6d6256;
            line-height: 1.85;
            font-size: .96rem;
        }

        .contact-cta {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
        }

        .contact-cta .cover {
            position: absolute;
            inset: 0;
            background: linear-gradient(115deg, rgba(31, 53, 43, .96), rgba(47, 70, 58, .88) 60%, rgba(47, 70, 58, .76));
        }

        .site-footer {
            background: #22392f;
            color: #fff;
        }

        .site-footer a {
            color: rgba(255, 255, 255, .72);
            transition: color .2s;
            line-height: 2;
        }

        .site-footer a:hover {
            color: var(--sand-soft);
        }

        .footer-brand .brand-text {
            color: #fff;
        }

        .footer-brand .brand-mark {
            background: linear-gradient(145deg, #c39743, #8e6a25);
        }

        .footer-title {
            color: #fff;
            font-size: .92rem;
            font-weight: 700;
            margin: 0 0 .8rem;
            letter-spacing: .1em;
        }

        .site-footer p {
            color: rgba(255, 255, 255, .65);
            line-height: 1.85;
        }

        .footer-links {
            line-height: 2;
            color: rgba(255, 255, 255, .72);
        }

        .footer-links p {
            margin: .2rem 0;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .12);
            background: rgba(0, 0, 0, .08);
        }

        .footer-bottom .wrap {
            border-top: 1px solid rgba(180, 131, 47, .55);
            padding-top: 1.1rem;
            padding-bottom: 1.1rem;
        }

        .footer-bottom p {
            font-size: .88rem;
            color: rgba(255, 255, 255, .55);
            margin: 0;
        }