/* roulang page: index */
:root {
        --brand-950: #10281F;
        --brand-900: #12332A;
        --brand-800: #194D3A;
        --brand-600: #11785A;
        --brand-100: #E3F2EA;
        --leaf-400: #CEEC72;
        --leaf-100: #F0F9D8;
        --ember-600: #C8481B;
        --ember-400: #FB7D3E;
        --ember-100: #FCE6DB;
        --canvas: #F6F7F1;
        --ink: #182720;
        --line: #DCE7DF;
        --card-shadow: 0 1px 3px rgba(16, 40, 31, 0.06);
        --card-shadow-hover: 0 16px 40px rgba(16, 40, 31, 0.1);
        --radius-card: 1.5rem;
        --radius-hero: 2rem;
        --font-stack: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", system-ui, sans-serif;
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: var(--font-stack);
        background-color: var(--canvas);
        color: var(--ink);
        line-height: 1.7;
        -webkit-font-smoothing: antialiased;
        text-rendering: optimizeLegibility;
    }

    body.no-scroll {
        overflow: hidden;
    }

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

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

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

    ul,
    ol {
        list-style: none;
    }

    .container {
        width: min(100% - 44px, 1280px);
        margin-inline: auto;
    }

    .section {
        padding-block: 96px;
    }

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

    .section-head {
        max-width: 720px;
        margin-bottom: 48px;
    }

    .section-head.center {
        margin-inline: auto;
        text-align: center;
    }

    .kicker {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        font-weight: 700;
        letter-spacing: 0.08em;
        color: var(--brand-600);
        background: var(--brand-100);
        border-radius: 999px;
        padding: 7px 14px;
    }

    .kicker--leaf {
        background: var(--leaf-100);
        color: #2b5815;
    }

    h1,
    h2,
    h3,
    h4 {
        color: var(--brand-950);
        line-height: 1.2;
        font-weight: 800;
        letter-spacing: -0.01em;
    }

    h1 {
        font-size: 48px;
    }

    h2 {
        font-size: 34px;
        font-weight: 800;
    }

    h3 {
        font-size: 21px;
        font-weight: 750;
    }

    p {
        color: #38483f;
    }

    .lead {
        font-size: 17px;
        color: #46584d;
        line-height: 1.8;
    }

    .fine {
        font-size: 13px;
        color: #7c8982;
    }

    /* 分隔标题线 */
    .divider-line {
        height: 1px;
        background: var(--line);
        border: 0;
    }

    /* 标签 */
    .tag {
        display: inline-flex;
        align-items: center;
        border-radius: 999px;
        background: var(--brand-100);
        color: var(--brand-800);
        padding: 5px 13px;
        font-size: 13px;
        font-weight: 600;
        white-space: nowrap;
    }

    .tag--leaf {
        background: var(--leaf-100);
        color: #3c5a1e;
    }

    .tag--ember {
        background: var(--ember-100);
        color: var(--ember-600);
    }

    /* 按钮 */
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        border-radius: 999px;
        font-weight: 700;
        font-size: 15px;
        line-height: 1;
        padding: 15px 28px;
        transition: background-color .2s ease, transform .2s ease, box-shadow .2s ease, color .2s ease, border-color .2s ease;
        white-space: nowrap;
    }

    .btn:focus-visible {
        outline: none;
        box-shadow: 0 0 0 4px rgba(206, 236, 114, 0.55);
    }

    .btn:active {
        transform: translateY(1px) scale(0.99);
    }

    .btn-primary {
        background: var(--brand-800);
        color: #fff;
    }

    .btn-primary:hover {
        background: var(--brand-600);
        box-shadow: 0 8px 24px rgba(17, 120, 90, 0.28);
        transform: translateY(-2px);
    }

    .btn-ember {
        background: var(--ember-600);
        color: #fff;
    }

    .btn-ember:hover {
        background: #a83a14;
        box-shadow: 0 8px 24px rgba(200, 72, 27, 0.25);
    }

    .btn-outline {
        background: #fff;
        border: 1px solid rgba(25, 77, 58, 0.35);
        color: var(--brand-800);
    }

    .btn-outline:hover {
        background: var(--brand-100);
        border-color: var(--brand-800);
        transform: translateY(-2px);
    }

    .btn-white {
        background: #fff;
        color: var(--brand-950);
    }

    .btn-white:hover {
        background: var(--leaf-100);
        box-shadow: 0 10px 30px rgba(255, 255, 255, 0.15);
        transform: translateY(-2px);
    }

    .btn-light-line {
        border: 1px solid rgba(255, 255, 255, 0.42);
        color: #fff;
    }

    .btn-light-line:hover {
        background: rgba(255, 255, 255, 0.12);
    }

    .icon-btn {
        width: 38px;
        height: 38px;
        border-radius: 50%;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        background: var(--brand-100);
        color: var(--brand-800);
        transition: all .2s;
    }

    .icon-btn:hover {
        background: var(--brand-800);
        color: #fff;
    }

    /* ---------- Header Nav ---------- */
    .navbar {
        position: sticky;
        top: 0;
        z-index: 60;
        background: rgba(255, 255, 255, 0.97);
        backdrop-filter: blur(6px);
        border-bottom: 1px solid rgba(220, 231, 223, 0.8);
        height: 82px;
    }

    .nav-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 100%;
    }

    .nav-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        color: var(--brand-950);
        font-weight: 900;
        letter-spacing: -0.02em;
    }

    .logo-mark {
        width: 36px;
        height: 36px;
        border-radius: 12px;
        background: linear-gradient(135deg, var(--brand-950), var(--brand-600));
        display: grid;
        place-items: center;
        color: var(--leaf-400);
        flex-shrink: 0;
    }

    .nav-logo span {
        font-size: 20px;
    }

    .nav-links {
        display: flex;
        align-items: center;
        gap: 34px;
    }

    .nav-links a {
        font-size: 15px;
        font-weight: 600;
        color: #52625a;
        padding-block: 8px;
        position: relative;
        transition: color .2s ease;
    }

    .nav-links a::after {
        content: "";
        position: absolute;
        bottom: 0;
        left: 0;
        height: 2px;
        width: 0;
        background: var(--brand-800);
        transition: width .24s ease;
        border-radius: 2px;
    }

    .nav-links a:hover {
        color: var(--brand-800);
    }

    .nav-links a.active {
        color: var(--brand-800);
        font-weight: 700;
    }

    .nav-links a.active::after {
        width: 100%;
    }

    .nav-cta {
        display: flex;
        align-items: center;
        gap: 14px;
    }

    .hamburger {
        display: none;
        background: transparent;
        padding: 8px;
        color: var(--brand-950);
    }

    .hamburger svg {
        width: 26px;
        height: 26px;
    }

    /* 移动抽屉 */
    .drawer-backdrop {
        position: fixed;
        inset: 0;
        z-index: 70;
        background: rgba(16, 40, 31, 0.42);
        opacity: 0;
        visibility: hidden;
        transition: opacity .25s ease, visibility .25s ease;
    }

    .drawer-panel {
        position: fixed;
        top: 0;
        right: 0;
        z-index: 80;
        background: #fff;
        width: min(320px, 86vw);
        height: 100vh;
        padding: 24px;
        transform: translateX(102%);
        transition: transform .3s cubic-bezier(.22, 1, .36, 1);
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    .drawer-open .drawer-panel {
        transform: translateX(0);
    }

    .drawer-open .drawer-backdrop {
        opacity: 1;
        visibility: visible;
    }

    .drawer-close {
        align-self: flex-end;
        background: var(--canvas);
        border-radius: 50%;
        width: 40px;
        height: 40px;
        display: grid;
        place-items: center;
    }

    .drawer-links {
        display: flex;
        flex-direction: column;
        gap: 6px;
        margin-top: 8px;
        border-top: 1px solid var(--line);
        padding-top: 16px;
    }

    .drawer-links a {
        font-size: 17px;
        font-weight: 600;
        color: var(--brand-950);
        padding: 13px 10px;
        border-radius: 14px;
        transition: background-color .2s;
    }

    .drawer-links a:hover,
    .drawer-links a.active {
        background: var(--brand-100);
        color: var(--brand-800);
    }

    .drawer-cta {
        margin-top: auto;
    }

    /* ---------- Hero ---------- */
    .hero {
        position: relative;
        overflow: hidden;
        background:
            radial-gradient(600px 300px at 78% 8%, rgba(206, 236, 114, 0.26), transparent 70%),
            radial-gradient(500px 300px at 8% 85%, rgba(17, 120, 90, 0.12), transparent 60%),
            #fff;
    }

    .hero .container {
        display: grid;
        grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
        align-items: center;
        gap: 56px;
        padding-block: 88px 96px;
    }

    .hero-eyebrow {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: var(--leaf-100);
        color: #2f511d;
        padding: 6px 14px;
        border-radius: 999px;
        font-size: 14px;
        font-weight: 700;
    }

    .hero-title {
        font-size: clamp(38px, 5vw, 62px);
        margin-top: 22px;
        line-height: 1.12;
    }

    .hero-title strong {
        color: var(--brand-600);
        font-weight: inherit;
    }

    .hero-sub {
        font-size: 18px;
        line-height: 1.8;
        color: #52625a;
        max-width: 480px;
        margin-top: 22px;
    }

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

    .hero-points {
        display: flex;
        flex-wrap: wrap;
        gap: 22px;
        margin-top: 34px;
        color: #6d7a73;
        font-size: 14px;
        font-weight: 600;
    }

    .hero-points li {
        display: flex;
        align-items: center;
        gap: 7px;
    }

    .hero-points li svg {
        width: 18px;
        height: 18px;
        color: var(--brand-600);
    }

    .hero-art {
        position: relative;
    }

    .hero-img {
        width: 100%;
        aspect-ratio: 5/4.2;
        object-fit: cover;
        border-radius: 30px;
        box-shadow: 0 30px 80px rgba(16, 40, 31, 0.22);
        outline: 1px solid rgba(255, 255, 255, 0.16);
        outline-offset: -1px;
    }

    .float-card {
        position: absolute;
        background: rgba(255, 255, 255, 0.96);
        border-radius: 20px;
        box-shadow: 0 20px 50px rgba(16, 40, 31, 0.18);
        padding: 16px 20px;
        display: flex;
        gap: 14px;
        align-items: center;
        font-weight: 700;
        width: max-content;
        bottom: 28px;
        left: -32px;
        transform: rotate(-2deg);
        color: var(--brand-950);
    }

    .float-card strong {
        font-size: 36px;
        line-height: 1;
        color: var(--brand-600);
        font-variant-numeric: tabular-nums;
    }

    .float-card small {
        font-size: 13px;
        font-weight: 600;
        color: #718078;
        line-height: 1.4;
    }

    .float-card--right {
        top: 32px;
        right: -14px;
        left: auto;
        bottom: auto;
        transform: rotate(2deg);
        background: var(--brand-900);
        color: #fff;
    }

    .float-card--right strong {
        color: var(--leaf-400);
    }

    .float-card--right small {
        color: rgba(255, 255, 255, 0.72);
    }

    /* 信任条 */
    .trust-strip {
        background: #fff;
        border-block: 1px solid var(--line);
        text-align: center;
        padding: 18px 0;
    }

    .trust-strip .container {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        align-items: center;
        gap: 0;
        color: #5f6d65;
        font-size: 15px;
        font-weight: 650;
    }

    .trust-strip span {
        display: inline-flex;
        align-items: center;
        gap: 14px;
        padding: 2px 14px;
    }

    .trust-strip span + span::before {
        content: "";
        width: 4px;
        height: 4px;
        border-radius: 50%;
        background: var(--leaf-400);
        margin-right: 24px;
    }

    /* 痛点卡片 */
    .pain-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
        align-items: start;
    }

    .pain-card {
        background: #fff;
        border: 1px solid rgba(220, 231, 223, 0.82);
        border-radius: var(--radius-card);
        padding: 28px 26px;
        box-shadow: var(--card-shadow);
        transition: transform .25s ease, box-shadow .25s ease;
        min-height: 250px;
    }

    .pain-card:nth-child(2) {
        transform: translateY(36px);
    }

    .pain-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--card-shadow-hover);
    }

    .pain-card:nth-child(2):hover {
        transform: translateY(32px);
    }

    .pain-num {
        font-size: 14px;
        font-weight: 800;
        letter-spacing: .08em;
        margin-bottom: 22px;
        display: inline-flex;
        color: var(--brand-600);
    }

    .pain-icon {
        width: 44px;
        height: 44px;
        margin-bottom: 20px;
        border-radius: 14px;
        background: var(--leaf-100);
        display: grid;
        place-items: center;
        color: #467020;
    }

    .pain-card--orange {
        background: #fff8f4;
        border-color: rgba(200, 72, 27, 0.12);
    }

    .pain-card--orange .pain-icon {
        background: var(--ember-100);
        color: var(--ember-600);
    }

    .pain-card h3 {
        margin-bottom: 10px;
    }

    .pain-card p {
        font-size: 15px;
        color: #5c6a62;
    }

    /* 解决方案模块 */
    .solution-wrap {
        background: #fff;
        border-radius: 34px;
        padding: 60px;
    }

    .solution-layout {
        display: grid;
        grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
        gap: 54px;
        align-items: center;
    }

    .solution-aside h2 {
        max-width: 360px;
        font-size: 38px;
        line-height: 1.2;
    }

    .solution-aside p {
        margin-top: 22px;
        font-size: 16px;
        line-height: 1.8;
    }

    .solution-feature-img {
        margin-top: 28px;
        border-radius: 22px;
        width: 100%;
        aspect-ratio: 4/2.5;
        object-fit: cover;
        box-shadow: var(--card-shadow);
    }

    .solution-items {
        display: grid;
        gap: 20px;
    }

    .solution-item {
        border: 1px solid var(--line);
        border-radius: 22px;
        padding: 24px;
        background: var(--canvas);
        display: grid;
        grid-template-columns: 50px 1fr auto;
        gap: 18px;
        align-items: start;
        transition: background-color .2s, box-shadow .2s, border-color .2s;
    }

    .solution-item:hover {
        background: #fff;
        border-color: rgba(25, 77, 58, 0.35);
        box-shadow: var(--card-shadow-hover);
    }

    .solution-item-icon {
        width: 48px;
        height: 48px;
        border-radius: 14px;
        background: var(--brand-800);
        display: grid;
        place-items: center;
        color: var(--leaf-400);
        flex-shrink: 0;
    }

    .solution-item--media {
        background: #fff;
        border: 1px solid rgba(220, 231, 223, 0.7);
        grid-template-columns: 50px 1fr auto;
    }

    .solution-item h3 {
        font-size: 20px;
        margin-bottom: 5px;
    }

    .solution-item p {
        font-size: 15px;
        line-height: 1.7;
    }

    .tag-row {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        margin-top: 14px;
    }

    .solution-link {
        display: inline-flex;
        align-items: center;
        margin-top: 16px;
        font-size: 15px;
        font-weight: 700;
        color: var(--brand-600);
    }

    .solution-link:hover {
        color: var(--ember-600);
    }

    .solution-link svg {
        transition: transform .2s;
    }

    .solution-link:hover svg {
        transform: translateX(4px);
    }

    /* 数据带 */
    .data-band {
        background: linear-gradient(135deg, #10281f 0%, #194d3a 55%, #2f8a68 100%);
        border-radius: 42px;
        padding: 54px;
        color: #fff;
        position: relative;
        overflow: hidden;
    }

    .data-band::before {
        content: "";
        position: absolute;
        inset: 0;
        background: radial-gradient(320px 180px at 94% 6%, rgba(206, 236, 114, 0.28), transparent 68%);
        pointer-events: none;
    }

    .data-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 32px;
        position: relative;
        z-index: 1;
    }

    .data-item {
        border-left: 1px solid rgba(255, 255, 255, 0.14);
        padding-left: 22px;
    }

    .data-item strong {
        display: block;
        font-size: 48px;
        line-height: 1;
        font-weight: 900;
        color: var(--leaf-400);
        font-variant-numeric: tabular-nums;
        letter-spacing: -0.04em;
    }

    .data-item em {
        display: block;
        font-style: normal;
        color: rgba(255, 255, 255, 0.74);
        margin-top: 6px;
        font-size: 14px;
    }

    .data-item small {
        display: block;
        margin-top: 14px;
        color: rgba(255, 255, 255, 0.92);
        font-size: 15px;
        font-weight: 600;
        line-height: 1.5;
    }

    /* ---------- 最新信息 ---------- */
    .news-section {
        background: #fff;
    }

    .news-wrap {
        border-radius: 36px;
        background: var(--canvas);
        padding: 54px;
    }

    .news-layout {
        display: grid;
        grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
        gap: 34px;
        align-items: start;
    }

    .news-feature {
        background: #fff;
        border-radius: 26px;
        overflow: hidden;
        box-shadow: var(--card-shadow);
        transition: transform .22s ease, box-shadow .22s ease;
    }

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

    .news-feature-img {
        aspect-ratio: 16/9;
        object-fit: cover;
        width: 100%;
    }

    .news-feature-body {
        padding: 26px 28px 28px;
    }

    .news-meta {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 14px;
        margin-bottom: 16px;
        font-size: 14px;
        color: #859088;
    }

    .news-feature h3 {
        font-size: 24px;
        line-height: 1.3;
        margin-bottom: 12px;
    }

    .news-feature h3 a:hover {
        color: var(--brand-600);
    }

    .news-feature p {
        font-size: 15px;
        line-height: 1.75;
        color: #5c6a62;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .news-list {
        display: flex;
        flex-direction: column;
        max-height: 590px;
        overflow-y: auto;
        gap: 12px;
        padding-right: 4px;
    }

    .news-list::-webkit-scrollbar {
        width: 6px;
    }

    .news-list::-webkit-scrollbar-thumb {
        background: #ccd9d0;
        border-radius: 8px;
    }

    .news-row {
        background: #fff;
        border-radius: 20px;
        padding: 18px 20px;
        border: 1px solid rgba(220, 231, 223, 0.72);
        transition: border-color .2s ease, box-shadow .2s ease, transform .2s;
    }

    .news-row:hover {
        border-color: rgba(25, 77, 58, 0.32);
        box-shadow: var(--card-shadow-hover);
        transform: translateY(-2px);
    }

    .news-row h4 {
        font-size: 16px;
        font-weight: 750;
        line-height: 1.5;
        margin-bottom: 6px;
    }

    .news-row h4 a:hover {
        color: var(--brand-600);
    }

    .news-row p {
        font-size: 14px;
        color: #746f6f;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        margin-bottom: 10px;
    }

    .news-row-meta {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
    }

    .news-link {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        color: var(--brand-600);
        font-weight: 700;
        font-size: 14px;
    }

    .news-link:hover {
        color: var(--ember-600);
    }

    .news-empty {
        grid-column: 1 / -1;
        border: 2px dashed #c6d6cc;
        border-radius: 24px;
        text-align: center;
        padding: 64px 24px;
        background: #fff;
    }

    .news-empty svg {
        width: 42px;
        height: 42px;
        color: #8ba494;
        margin: 0 auto 12px;
    }

    .news-empty p {
        color: #75847c;
        font-size: 16px;
    }

    /* 客户证言 */
    .review-card {
        background: #fff;
        border-radius: 26px;
        padding: 30px 28px;
        box-shadow: var(--card-shadow);
        display: flex;
        flex-direction: column;
        height: 100%;
        transition: box-shadow .2s ease, transform .2s ease;
    }

    .review-card:hover {
        box-shadow: var(--card-shadow-hover);
        transform: translateY(-4px);
    }

    .review-stars {
        color: #e6a23c;
        display: flex;
        gap: 2px;
        margin-bottom: 18px;
    }

    .review-stars svg {
        width: 18px;
        height: 18px;
        fill: currentColor;
    }

    .review-text {
        font-size: 16px;
        line-height: 1.85;
        color: #394d43;
        flex: 1;
    }

    .review-person {
        display: flex;
        align-items: center;
        gap: 13px;
        margin-top: 24px;
    }

    .review-avatar {
        width: 44px;
        height: 44px;
        border-radius: 50%;
        object-fit: cover;
        background: var(--brand-100);
        color: var(--brand-800);
        display: grid;
        place-items: center;
        font-weight: 800;
        overflow: hidden;
    }

    .review-person strong {
        display: block;
        font-size: 15px;
        color: var(--brand-950);
    }

    .review-person span {
        font-size: 13px;
        color: #849088;
    }

    /* FAQ */
    .faq-wrap {
        max-width: 920px;
        margin: 0 auto;
    }

    .faq-item {
        background: #fff;
        border-radius: 22px;
        box-shadow: var(--card-shadow);
        border: 1px solid rgba(220, 231, 223, 0.8);
        margin-bottom: 14px;
        overflow: hidden;
        transition: box-shadow .2s ease;
    }

    .faq-item summary {
        list-style: none;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 20px;
        padding: 22px 28px;
        cursor: pointer;
        font-size: 17px;
        font-weight: 750;
        color: var(--brand-950);
        transition: color .15s;
        user-select: none;
    }

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

    .faq-item summary:hover {
        color: var(--brand-600);
    }

    .faq-icon {
        width: 28px;
        height: 28px;
        border-radius: 50%;
        background: var(--brand-100);
        display: grid;
        place-items: center;
        color: var(--brand-800);
        font-size: 22px;
        line-height: 1;
        flex-shrink: 0;
        transition: transform .25s ease, background-color .2s ease, color .2s ease;
    }

    .faq-item[open] .faq-icon {
        transform: rotate(45deg);
        background: var(--brand-800);
        color: var(--leaf-400);
    }

    .faq-answer {
        padding: 0 28px 22px 28px;
        margin-top: -6px;
        color: #58665f;
        font-size: 15px;
        line-height: 1.8;
        border-top: 1px dashed var(--line);
        padding-top: 16px;
        margin-left: 28px;
        margin-right: 28px;
        padding-left: 0;
        padding-right: 0;
    }

    /* CTA */
    .cta-band {
        position: relative;
        border-radius: 40px;
        overflow: hidden;
        min-height: 360px;
        display: flex;
        align-items: center;
        background: var(--brand-950);
        isolation: isolate;
    }

    .cta-band::before {
        content: "";
        position: absolute;
        inset: 0;
        background-image: url('/assets/images/backpic/back-2.webp');
        background-size: cover;
        background-position: center;
        z-index: -2;
    }

    .cta-band::after {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(100deg, rgba(16, 40, 31, 0.96) 10%, rgba(16, 40, 31, 0.76) 100%);
        z-index: -1;
    }

    .cta-content {
        padding: 72px 64px;
        max-width: 760px;
        color: #fff;
    }

    .cta-content h2 {
        font-size: clamp(27px, 4vw, 40px);
        color: #fff;
        letter-spacing: -0.02em;
    }

    .cta-content p {
        color: rgba(255, 255, 255, 0.78);
        margin-top: 18px;
        font-size: 16px;
        line-height: 1.8;
    }

    .cta-btn-row {
        display: flex;
        flex-wrap: wrap;
        gap: 14px;
        margin-top: 30px;
    }

    /* Footer */
    .footer {
        background: var(--brand-950);
        margin-top: 90px;
        color: rgba(255, 255, 255, 0.72);
    }

    .footer-topline {
        height: 3px;
        background: linear-gradient(90deg, var(--leaf-400), transparent 65%);
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr 0.8fr 1fr 1fr;
        gap: 34px;
        padding-block: 60px 42px;
    }

    .footer h4 {
        color: #fff;
        font-size: 16px;
        margin-bottom: 18px;
        font-weight: 750;
    }

    .footer-brand {
        font-size: 23px;
        font-weight: 900;
        color: #fff;
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 16px;
    }

    .footer-brand .logo-mark {
        width: 38px;
        height: 38px;
    }

    .footer-desc {
        font-size: 15px;
        line-height: 1.8;
        max-width: 300px;
        color: rgba(255, 255, 255, 0.6);
    }

    .footer-nav a {
        display: block;
        padding: 5px 0;
        font-size: 15px;
        color: rgba(255, 255, 255, 0.72);
        transition: color .2s ease, padding-left .2s ease;
    }

    .footer-nav a:hover {
        color: var(--leaf-400);
        padding-left: 6px;
    }

    .footer-contact li {
        display: flex;
        gap: 10px;
        align-items: flex-start;
        margin-bottom: 14px;
        font-size: 15px;
        line-height: 1.6;
        color: rgba(255, 255, 255, 0.66);
    }

    .footer-contact svg {
        width: 19px;
        height: 19px;
        flex-shrink: 0;
        margin-top: 2px;
        color: var(--leaf-400);
    }

    .footer-copy {
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        padding-block: 22px;
        display: flex;
        justify-content: space-between;
        gap: 14px;
        flex-wrap: wrap;
        font-size: 13px;
        color: rgba(255, 255, 255, 0.5);
    }

    .footer-copy a {
        color: rgba(255, 255, 255, 0.65);
    }

    .footer-copy a:hover {
        color: var(--leaf-400);
    }

    .backtop {
        position: fixed;
        right: 25px;
        bottom: 25px;
        z-index: 40;
        width: 44px;
        height: 44px;
        border-radius: 50%;
        background: var(--brand-800);
        color: #fff;
        display: grid;
        place-items: center;
        box-shadow: 0 10px 30px rgba(16, 40, 31, 0.25);
        opacity: 0;
        visibility: hidden;
        transition: opacity .3s, visibility .3s, transform .3s;
    }

    .backtop.show {
        opacity: 1;
        visibility: visible;
    }

    .backtop:hover {
        transform: translateY(-4px);
        background: var(--brand-600);
    }

    /* 响应式 */
    @media (max-width: 1100px) {
        .nav-links {
            gap: 26px;
        }

        .hero .container {
            gap: 34px;
        }

        .solution-wrap {
            padding: 36px;
        }

        .data-grid {
            grid-template-columns: repeat(2, 1fr);
            row-gap: 34px;
        }

        .data-item {
            padding-left: 18px;
        }
    }

    @media (max-width: 900px) {
        .section {
            padding-block: 72px;
        }

        .nav-links,
        .nav-cta .btn {
            display: none;
        }

        .hamburger {
            display: inline-flex;
        }

        .hero .container {
            grid-template-columns: 1fr;
            padding-block: 52px;
            gap: 44px;
        }

        .hero-title {
            font-size: 42px;
        }

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

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

        .pain-card:nth-child(2),
        .pain-card:nth-child(2):hover {
            transform: none;
        }

        .pain-card:nth-child(3) {
            grid-column: 1 / -1;
            min-height: 0;
        }

        .solution-wrap {
            padding: 27px;
        }

        .solution-layout,
        .news-layout {
            grid-template-columns: 1fr;
        }

        .solution-feature-img {
            aspect-ratio: 16/10;
        }

        .review-card {
            margin-bottom: 4px;
        }

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

        .cta-content {
            padding: 52px 34px;
        }
    }

    @media (max-width: 640px) {
        .section {
            padding-block: 60px;
        }

        .container {
            width: min(100% - 32px, 1280px);
        }

        .nav-inner {
            height: 72px;
        }

        .navbar {
            height: 72px;
        }

        .nav-logo span {
            font-size: 18px;
        }

        .hero .container {
            padding-block: 40px;
        }

        .hero-title {
            font-size: 34px;
            line-height: 1.2;
        }

        .hero-actions {
            flex-direction: column;
        }

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

        .float-card,
        .float-card--right {
            left: 14px;
            right: auto;
            bottom: 14px;
            top: auto;
            transform: rotate(-2deg);
            padding: 12px 15px;
        }

        .float-card--right {
            top: 14px;
            right: 14px;
            left: auto;
            bottom: auto;
            transform: rotate(2deg);
        }

        .float-card strong {
            font-size: 26px;
        }

        .trust-strip .container {
            gap: 0;
            flex-direction: row;
            flex-wrap: wrap;
        }

        .trust-strip span + span::before {
            margin-right: 16px;
        }

        .trust-strip span {
            padding: 2px 8px;
        }

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

        .pain-card {
            min-height: 0;
        }

        .pain-card:nth-child(3) {
            grid-column: auto;
        }

        .section-head {
            margin-bottom: 34px;
        }

        h1 {
            font-size: 34px;
        }

        h2 {
            font-size: 28px;
        }

        .data-band {
            border-radius: 24px;
            padding: 30px 22px;
        }

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

        .data-item {
            padding-left: 14px;
        }

        .data-item strong {
            font-size: 38px;
        }

        .news-wrap {
            padding: 24px 16px;
        }

        .news-list {
            max-height: none;
            overflow-y: visible;
        }

        .news-row-meta {
            align-items: flex-start;
            flex-direction: column;
        }

        .review-item + .review-item {
            margin-top: 18px;
        }

        .faq-item summary {
            padding: 18px 18px;
            font-size: 16px;
        }

        .faq-answer {
            padding: 16px 0 22px;
            margin: 0 18px;
        }

        .cta-band {
            border-radius: 26px;
        }

        .cta-content {
            padding: 44px 24px;
        }

        .footer-grid {
            grid-template-columns: 1fr;
            padding-block: 40px 28px;
        }

        .backtop {
            right: 16px;
            bottom: 16px;
            width: 40px;
            height: 40px;
        }
    }

/* roulang page: category1 */
:root {
            --brand-950: #10281F;
            --brand-900: #12332A;
            --brand-800: #194D3A;
            --brand-600: #11785A;
            --brand-100: #E3F2EA;
            --leaf-400: #CEEC72;
            --leaf-100: #F0F9D8;
            --ember-600: #C8481B;
            --ember-400: #FB7D3E;
            --ember-100: #FCE6DB;
            --canvas: #F6F7F1;
            --ink: #182720;
            --line: #DCE7DF;
            --radius-lg: 24px;
            --radius-xl: 30px;
            --shadow-sm: 0 1px 3px rgba(16, 40, 31, 0.06);
            --shadow-lg: 0 16px 40px rgba(16, 40, 31, 0.10);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            color: var(--ink);
            background: var(--canvas);
            font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", system-ui, sans-serif;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

        body.menu-open {
            overflow: hidden;
        }

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

        a {
            color: var(--brand-800);
            text-decoration: none;
        }

        h1, h2, h3, p {
            margin-top: 0;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        @media (min-width: 1024px) {
            .container {
                padding-left: 24px;
                padding-right: 24px;
            }
        }

        .section {
            padding-top: 64px;
            padding-bottom: 64px;
        }

        @media (min-width: 1024px) {
            .section {
                padding-top: 96px;
                padding-bottom: 96px;
            }
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 999px;
            padding: 14px 26px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            border: 1px solid transparent;
            transition: background .2s ease, color .2s ease, box-shadow .2s ease, transform .15s ease;
            cursor: pointer;
            text-align: center;
        }

        .btn:active {
            transform: translateY(1px);
        }

        .btn:focus-visible {
            outline: 2px solid var(--leaf-400);
            outline-offset: 3px;
        }

        .btn-primary {
            background: var(--brand-800);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--brand-600);
            box-shadow: 0 12px 30px rgba(17, 120, 90, 0.22);
        }

        .btn-ghost {
            background: #fff;
            border-color: rgba(25, 77, 58, .25);
            color: var(--brand-800);
        }

        .btn-ghost:hover {
            background: var(--brand-100);
            border-color: rgba(25, 77, 58, .4);
        }

        .btn-ember {
            background: var(--ember-600);
            color: #fff;
        }

        .btn-ember:hover {
            background: var(--ember-400);
            box-shadow: 0 12px 30px rgba(200, 72, 27, 0.25);
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 60;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(220, 231, 223, 0.8);
        }

        .header-inner {
            height: 76px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--brand-950);
            letter-spacing: .5px;
        }

        .logo-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, #10281F 0%, #194D3A 55%, #2F8A68 100%);
            border-radius: 12px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--leaf-400);
            box-shadow: 0 8px 18px rgba(16, 40, 31, .16);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            color: #31433A;
            font-size: 15px;
            font-weight: 500;
            padding: 8px 0;
            position: relative;
            white-space: nowrap;
        }

        .nav-links a.active {
            color: var(--brand-800);
            font-weight: 700;
        }

        .nav-links a.active::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 3px;
            border-radius: 999px;
            background: var(--leaf-400);
        }

        .nav-links a:hover {
            color: var(--brand-800);
        }

        .menu-toggle {
            width: 42px;
            height: 42px;
            display: none;
            align-items: center;
            justify-content: center;
            border-radius: 14px;
            border: 1px solid var(--line);
            background: #fff;
            cursor: pointer;
        }

        .menu-toggle span {
            width: 18px;
            height: 2px;
            background: var(--brand-950);
            display: inline-block;
            position: relative;
            transition: background .2s;
        }

        .menu-toggle span::before,
        .menu-toggle span::after {
            content: "";
            position: absolute;
            width: 18px;
            height: 2px;
            background: var(--brand-950);
            left: 0;
            transition: transform .2s, top .2s;
        }

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

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

        .site-header.menu-open .menu-toggle span {
            background: transparent;
        }

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

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

        /* Footer */
        .footer {
            background: var(--brand-950);
            color: rgba(255, 255, 255, 0.80);
            margin-top: 0;
            padding-top: 64px;
            padding-bottom: 28px;
            position: relative;
        }

        .footer-topline {
            height: 4px;
            background: linear-gradient(90deg, var(--leaf-400), rgba(206, 236, 114, 0.3));
        }

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

        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 2fr 0.8fr 0.9fr 1.1fr;
            }
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-size: 22px;
            font-weight: 800;
        }

        .footer-brand .logo-mark {
            background: rgba(255, 255, 255, 0.1);
            color: var(--leaf-400);
        }

        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.62);
            margin-top: 18px;
            line-height: 1.8;
        }

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

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

        .footer-nav a {
            color: rgba(255, 255, 255, 0.68);
            font-size: 14px;
        }

        .footer-nav a:hover {
            color: var(--leaf-400);
        }

        .footer-contact {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 13px;
        }

        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.72);
        }

        .footer-contact svg {
            width: 17px;
            height: 17px;
            margin-top: 3px;
            flex: none;
        }

        .footer-copy {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 42px;
            padding-top: 20px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.46);
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: space-between;
        }

        /* Category hero */
        .cat-hero {
            background: linear-gradient(135deg, #10281F 0%, #194D3A 55%, #2F8A68 100%);
            background-image: linear-gradient(120deg, rgba(16, 40, 31, 0.96), rgba(25, 77, 58, 0.88)), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            color: #fff;
            padding-top: 72px;
            padding-bottom: 72px;
            position: relative;
            overflow: hidden;
        }

        @media (min-width: 1024px) {
            .cat-hero {
                padding-top: 92px;
                padding-bottom: 92px;
            }
        }

        .cat-hero-inner {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
            align-items: center;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        @media (min-width: 1024px) {
            .cat-hero-inner {
                grid-template-columns: 1.2fr 0.8fr;
                padding-left: 24px;
                padding-right: 24px;
            }
        }

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.62);
            gap: 8px;
            margin-bottom: 20px;
        }

        .breadcrumb a {
            color: var(--leaf-400);
        }

        .breadcrumb a:hover {
            text-decoration: underline;
        }

        .cat-hero h1 {
            color: #fff;
            font-size: clamp(34px, 5vw, 60px);
            font-weight: 800;
            line-height: 1.2;
            margin: 0 0 18px;
            max-width: 760px;
            letter-spacing: -0.5px;
        }

        .cat-hero h1 .hero-highlight {
            color: var(--leaf-400);
        }

        .cat-hero p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 26px;
            max-width: 640px;
        }

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

        .cat-hero-note {
            background: rgba(255, 255, 255, 0.10);
            border: 1px solid rgba(255, 255, 255, 0.16);
            backdrop-filter: blur(8px);
            border-radius: 24px;
            padding: 30px;
            color: rgba(255, 255, 255, 0.9);
            box-shadow: 0 24px 48px rgba(0, 0, 0, 0.16);
        }

        .cat-hero-note h2 {
            color: #fff;
            font-size: 22px;
            font-weight: 700;
            margin: 0 0 14px;
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .cat-hero-note p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.76);
        }

        .hero-list {
            margin: 16px 0 0;
            padding: 0;
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .hero-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
        }

        .hero-list li::before {
            content: "";
            width: 7px;
            height: 7px;
            background: var(--leaf-400);
            border-radius: 50%;
            flex: none;
            margin-top: 9px;
        }

        /* Theme feature cards */
        .feature-band {
            margin-top: -40px;
            position: relative;
            z-index: 5;
        }

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

        @media (min-width: 1024px) {
            .feature-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        .feature-topic-card {
            background: #fff;
            border-radius: 28px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(220, 231, 223, 0.8);
            display: flex;
            flex-direction: column;
            transition: box-shadow .25s ease, transform .25s ease;
        }

        @media (min-width: 768px) {
            .feature-topic-card {
                flex-direction: row;
            }
        }

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

        .feature-topic-card .media {
            flex: 0 0 100%;
            min-height: 200px;
            position: relative;
            overflow: hidden;
            background: var(--brand-100);
        }

        @media (min-width: 768px) {
            .feature-topic-card .media {
                flex: 0 0 42%;
                min-height: 260px;
            }
        }

        .feature-topic-card .media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }

        .feature-topic-card .body {
            padding: 26px 26px 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            justify-content: center;
        }

        .cat-pill {
            display: inline-block;
            align-self: flex-start;
            background: var(--brand-100);
            color: var(--brand-800);
            border-radius: 999px;
            padding: 5px 13px;
            font-size: 13px;
            font-weight: 600;
            line-height: 1.4;
        }

        .feature-topic-card h3 {
            font-size: 23px;
            font-weight: 750;
            line-height: 1.35;
            margin: 8px 0 0;
            color: var(--brand-950);
        }

        .feature-topic-card .summary {
            font-size: 15px;
            color: #4e5f56;
            line-height: 1.7;
            margin: 0;
        }

        .article-arrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--brand-800);
            font-weight: 600;
            font-size: 15px;
            margin-top: 6px;
        }

        .article-arrow::after {
            content: "→";
            transition: transform .2s;
        }

        .article-arrow:hover::after {
            transform: translateX(4px);
        }

        /* Split area */
        .split-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
            margin-top: 80px;
        }

        @media (min-width: 1024px) {
            .split-layout {
                grid-template-columns: minmax(0, 1fr) 350px;
            }
        }

        .topic-main {
            padding: 8px 0;
        }

        .topic-main-heading {
            margin-bottom: 24px;
        }

        .topic-main-heading .eyebrow {
            display: inline-block;
            font-size: 14px;
            font-weight: 700;
            color: var(--brand-800);
            background: var(--leaf-100);
            border-radius: 999px;
            padding: 6px 14px;
            margin-bottom: 16px;
        }

        .topic-main-heading h2 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--brand-950);
            margin: 0;
        }

        .topic-point {
            display: flex;
            gap: 20px;
            padding: 28px 26px;
            border-radius: 24px;
            background: #fff;
            border: 1px solid rgba(220, 231, 223, 0.9);
            margin-bottom: 16px;
            transition: box-shadow .2s ease, transform .2s ease;
        }

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

        .topic-num {
            font-size: 30px;
            font-weight: 800;
            color: var(--leaf-400);
            font-variant-numeric: tabular-nums;
            letter-spacing: -1px;
            flex: none;
            line-height: 1.2;
            min-width: 54px;
        }

        .topic-point h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--brand-950);
            margin: 0 0 8px;
        }

        .topic-point ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 18px;
        }

        .topic-point li {
            color: #4e5f56;
            font-size: 14px;
            display: flex;
            align-items: flex-start;
            gap: 6px;
        }

        .topic-point li::before {
            content: "";
            width: 5px;
            height: 5px;
            background: var(--brand-600);
            border-radius: 50%;
            margin-top: 9px;
            flex: none;
        }

        @media (max-width: 520px) {
            .topic-point {
                flex-direction: column;
                gap: 10px;
                padding: 22px;
            }

            .topic-num {
                min-width: unset;
            }
        }

        /* Side toc */
        .side-toc {
            position: sticky;
            top: 104px;
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .stk-card {
            background: #fff;
            border-radius: 24px;
            border: 1px solid var(--line);
            padding: 24px;
        }

        .stk-card h4 {
            color: var(--brand-950);
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

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

        .toc-list li {
            border-bottom: 1px solid var(--line);
            margin-bottom: 2px;
        }

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

        .toc-list a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 4px;
            color: #31433a;
            font-size: 15px;
            transition: color .2s, padding-left .2s;
        }

        .toc-list a:hover {
            color: var(--brand-800);
            padding-left: 10px;
        }

        .toc-list a .idx {
            color: rgba(25, 77, 58, .45);
            font-size: 13px;
            font-weight: 600;
        }

        .download-box {
            background: var(--leaf-100);
            border: 1px dashed rgba(25, 77, 58, 0.16);
            border-radius: 18px;
            padding: 16px;
            margin-top: 4px;
        }

        .download-box strong {
            display: block;
            font-size: 15px;
            color: var(--brand-950);
            margin-bottom: 6px;
        }

        .download-box span {
            font-size: 13px;
            line-height: 1.6;
            display: block;
            color: #4e5f56;
            margin-bottom: 11px;
        }

        .mini-contact {
            background: linear-gradient(135deg, #10281F 0%, #194D3A 60%);
            color: #fff;
            border-radius: 22px;
            padding: 22px;
        }

        .mini-contact h5 {
            color: var(--leaf-400);
            margin: 0 0 8px;
            font-size: 17px;
        }

        .mini-contact p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
            margin-bottom: 14px;
        }

        .mini-contact .small-link {
            color: white;
            font-weight: 600;
            font-size: 14px;
        }

        /* Scene section */
        .scene-section {
            background: var(--brand-950);
            color: #fff;
            border-radius: 42px;
            overflow: hidden;
        }

        .scene-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 14px;
        }

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

        .scene-item {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 24px;
            padding: 24px 22px;
        }

        .scene-item strong {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            margin-bottom: 10px;
        }

        .scene-item p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            margin: 0;
            line-height: 1.7;
        }

        /* Process */
        .process-line {
            display: grid;
            gap: 18px;
            grid-template-columns: 1fr;
            margin-top: 12px;
        }

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

        @media (min-width: 1024px) {
            .process-line {
                grid-template-columns: repeat(5, 1fr);
            }
        }

        .process-step {
            background: #fff;
            border-radius: 22px;
            border: 1px solid var(--line);
            padding: 22px 20px;
            position: relative;
            box-shadow: var(--shadow-sm);
        }

        .process-step:hover {
            box-shadow: var(--shadow-lg);
        }

        .process-step .step-no {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            color: var(--ember-600);
            background: var(--ember-100);
            border-radius: 999px;
            padding: 4px 11px;
            margin-bottom: 14px;
        }

        .process-step h3 {
            margin: 0 0 8px;
            font-size: 18px;
            font-weight: 700;
            color: var(--brand-950);
        }

        .process-step p {
            font-size: 14px;
            color: #5b6d62;
            line-height: 1.7;
            margin: 0;
        }

        /* FAQ */
        .faq-item {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 20px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: box-shadow .2s ease;
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 18px 22px 17px;
            font-weight: 600;
            color: var(--brand-950);
            cursor: pointer;
            font-size: 16px;
        }

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

        .faq-item summary::after {
            content: "+";
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: var(--brand-100);
            color: var(--brand-800);
            font-size: 20px;
            font-weight: 400;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex: none;
            transition: transform .2s;
        }

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

        .faq-answer {
            border-top: 1px solid var(--line);
            padding: 16px 22px 22px;
            color: #4e5f56;
            font-size: 15px;
            line-height: 1.8;
        }

        /* CTA */
        .cta-panel {
            border-radius: 40px;
            overflow: hidden;
            background: linear-gradient(100deg, rgba(16, 40, 31, 0.94), rgba(25, 77, 58, 0.80)), url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            color: #fff;
            padding: 56px 32px;
            text-align: center;
        }

        @media (min-width: 768px) {
            .cta-panel {
                padding: 88px 64px;
            }
        }

        .cta-panel h2 {
            color: #fff;
            font-size: 30px;
            font-weight: 800;
            margin-bottom: 16px;
        }

        @media (min-width: 1024px) {
            .cta-panel h2 {
                font-size: 40px;
            }
        }

        .cta-panel p {
            color: rgba(255, 255, 255, 0.78);
            font-size: 16px;
            max-width: 600px;
            margin: 0 auto 30px;
        }

        .cta-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 14px;
        }

        .back-to-top {
            position: fixed;
            right: 22px;
            bottom: 22px;
            width: 46px;
            height: 46px;
            z-index: 59;
            background: var(--brand-800);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 21px;
            box-shadow: 0 10px 30px rgba(16, 40, 31, .18);
            transition: background .2s;
        }

        .back-to-top:hover {
            background: var(--brand-600);
        }

        /* Mobile menu */
        @media (max-width: 1024px) {
            .menu-toggle {
                display: inline-flex;
            }

            .nav-links {
                position: fixed;
                top: 76px;
                right: 0;
                bottom: 0;
                width: min(82vw, 330px);
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 30px 24px 40px;
                display: flex;
                transform: translateX(100%);
                opacity: 0;
                transition: transform .3s ease, opacity .25s ease;
                box-shadow: -20px 0 40px rgba(16, 40, 31, .12);
                margin: 0;
            }

            .nav-links a {
                padding: 14px 0;
                border-bottom: 1px solid #edf4ef;
                font-size: 16px;
            }

            .nav-links a.active::after {
                height: 3px;
                left: 0;
                width: 60px;
                background: var(--leaf-400);
            }

            .nav-links .mobile-cta {
                margin-top: 18px;
            }

            .site-header.menu-open .nav-links {
                transform: translateX(0);
                opacity: 1;
            }

            .header-cta {
                display: none;
            }
        }

        @media (max-width: 540px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .cat-hero-inner {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

/* roulang page: article */
:root {
  --color-brand-950: #10281F;
  --color-brand-900: #12332A;
  --color-brand-800: #194D3A;
  --color-brand-600: #11785A;
  --color-brand-100: #E3F2EA;
  --color-leaf-400: #CEEC72;
  --color-leaf-100: #F0F9D8;
  --color-ember-600: #C8481B;
  --color-ember-400: #FB7D3E;
  --color-ember-100: #FCE6DB;
  --color-canvas: #F6F7F1;
  --color-ink: #182720;
  --color-line: #DCE7DF;
  --color-muted: #66786F;
  --brand-gradient: linear-gradient(135deg, #10281F 0%, #194D3A 55%, #2F8A68 100%);
  --shadow-card: 0 1px 3px rgba(16, 40, 31, 0.06);
  --shadow-card-lg: 0 16px 40px rgba(16, 40, 31, 0.10);
  --radius-card: 1.5rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-canvas);
  color: var(--color-ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", system-ui, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color .2s ease;
}

button,
input,
textarea {
  font: inherit;
}

.container {
  max-width: 80rem;
  margin-inline: auto;
  padding-inline: 1.25rem;
}

@media (min-width: 768px) {
  .container {
    padding-inline: 2rem;
  }
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-brand-600);
  outline-offset: 3px;
  border-radius: 4px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  border: 0;
  cursor: pointer;
  border-radius: 999px;
  font-weight: 600;
  font-size: .9375rem;
  padding: .85rem 1.7rem;
  line-height: 1.2;
  transition: all .24s ease;
  box-shadow: 0 1px 3px rgba(16, 40, 31, 0.04);
  text-align: center;
  white-space: nowrap;
}

.btn-sm {
  padding: .58rem 1.15rem;
  font-size: .875rem;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1rem;
}

.btn-primary {
  background: var(--color-brand-800);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-brand-600);
  box-shadow: var(--shadow-card-lg);
  transform: translateY(-2px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-ember {
  background: var(--color-ember-600);
  color: #fff;
}

.btn-ember:hover {
  background: var(--color-ember-400);
  box-shadow: 0 10px 28px rgba(200, 72, 27, 0.32);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  border: 1px solid rgba(25, 77, 58, 0.26);
  color: var(--color-brand-800);
}

.btn-outline:hover {
  background: var(--color-brand-100);
  border-color: var(--color-brand-600);
}

.btn-outline-light {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: #fff;
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.65);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid rgba(220, 231, 223, 0.9);
}

.header-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 1rem;
  max-width: 80rem;
  margin-inline: auto;
  padding-inline: 1.25rem;
  height: 5rem;
}

@media (min-width: 768px) {
  .header-inner {
    padding-inline: 2rem;
    grid-template-columns: auto 1fr auto;
  }
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  min-width: max-content;
}

.logo-mark {
  width: 2.2rem;
  height: 2.2rem;
  border-radius: .7rem;
  background: var(--brand-gradient);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 6px 14px rgba(16, 40, 31, 0.18);
}

.logo-name {
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  color: var(--color-brand-900);
  white-space: nowrap;
}

.nav-links {
  display: none;
  align-items: center;
  gap: 2rem;
  justify-self: end;
}

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

.nav-links a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  color: #4E6157;
  font-size: .9375rem;
  font-weight: 500;
  padding: 0 .2rem;
}

.nav-links a:hover {
  color: var(--color-brand-800);
}

.nav-links a.active {
  color: var(--color-brand-800);
  font-weight: 700;
}

.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -2px;
  transform: translateX(-50%);
  width: 22px;
  height: 3px;
  border-radius: 999px;
  background: var(--color-brand-600);
}

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

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

.menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: .9rem;
  border: 1px solid #E1EAE4;
  background: #fff;
  color: var(--color-brand-900);
  cursor: pointer;
}

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

.mobile-menu {
  display: none;
  background: #fff;
  border-top: 1px solid var(--color-line);
  padding: 1rem 1.5rem 1.6rem;
  box-shadow: 0 18px 36px rgba(16, 40, 31, 0.08);
}

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

.mobile-nav {
  display: grid;
  gap: .25rem;
}

.mobile-nav a {
  padding: .8rem .2rem;
  border-radius: .8rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-brand-900);
}

.mobile-nav a:hover,
.mobile-nav a.active {
  background: var(--color-brand-100);
  color: var(--color-brand-800);
}

.mobile-menu-btn {
  margin-top: .75rem;
}

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

@media (min-width: 768px) {
  .article-page {
    padding: 4.5rem 0 5.5rem;
  }
}

.breadcrumb-wrap {
  max-width: 47rem;
  margin-inline: auto;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  color: #829188;
  font-size: .875rem;
  margin-bottom: 1.25rem;
}

@media (min-width: 768px) {
  .breadcrumb {
    justify-content: flex-start;
  }
}

.breadcrumb a {
  color: var(--color-brand-600);
  font-weight: 500;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.breadcrumb .current {
  color: #53665B;
  max-width: 30rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.breadcrumb .divider {
  color: #B5C4BA;
}

.article-head {
  max-width: 47rem;
  margin-inline: auto;
  text-align: center;
  padding-bottom: 2rem;
}

@media (min-width: 768px) {
  .article-head {
    text-align: left;
    padding-bottom: 2.5rem;
  }
}

.category-pill {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  background: var(--color-brand-100);
  color: var(--color-brand-800);
  border-radius: 999px;
  padding: .32rem .9rem;
  font-size: .8rem;
  font-weight: 600;
  margin-bottom: 1.05rem;
}

.category-pill::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-brand-600);
}

.article-title {
  font-size: clamp(1.9rem, 4vw, 2.9rem);
  line-height: 1.25;
  letter-spacing: -0.025em;
  color: var(--color-brand-950);
  font-weight: 800;
  margin: 0 0 1.1rem;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: .7rem 1.1rem;
  color: #6b7a72;
  font-size: .875rem;
}

@media (min-width: 768px) {
  .article-meta {
    justify-content: flex-start;
  }
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: .42rem;
}

.meta-dot {
  width: 4px;
  height: 4px;
  border-radius: 99px;
  background: #B4C3BA;
}

.article-cover {
  max-width: 47rem;
  margin: 0 auto 2.5rem;
  border-radius: 1.6rem;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(255, 255, 255, 0.6);
  background: #fff;
}

.article-body {
  max-width: 47rem;
  margin-inline: auto;
  font-size: 1.0625rem;
  line-height: 1.85;
  color: #26362d;
  overflow-wrap: break-word;
}

.article-body > p:first-of-type {
  font-size: 1.1875rem;
  color: #21332a;
}

.article-body p {
  margin: 0 0 1.35rem;
}

.article-body h2,
.article-body h3,
.article-body h4 {
  color: var(--color-brand-950);
  font-weight: 800;
  letter-spacing: -0.015em;
  line-height: 1.35;
  scroll-margin-top: 100px;
}

.article-body h2 {
  font-size: 1.55rem;
  margin: 2.4rem 0 1rem;
}

.article-body h3 {
  font-size: 1.25rem;
  margin: 1.8rem 0 .8rem;
}

.article-body h4 {
  font-size: 1.1rem;
  margin: 1.5rem 0 .6rem;
}

.article-body ul,
.article-body ol {
  padding-left: 1.4rem;
  margin: 0 0 1.4rem;
}

.article-body ul li,
.article-body ol li {
  margin: .3rem 0;
  padding-left: .2rem;
}

.article-body a {
  color: var(--color-brand-600);
  text-decoration: underline;
  text-decoration-color: rgba(17, 120, 90, 0.28);
  text-underline-offset: 3px;
}

.article-body a:hover {
  color: var(--color-brand-800);
  text-decoration-color: var(--color-brand-800);
}

.article-body blockquote {
  margin: 2rem 0;
  padding: 1.3rem 1.5rem 1.2rem;
  border-left: 4px solid var(--color-brand-600);
  border-radius: 0 1.2rem 1.2rem 0;
  background: #F0F6F2;
  color: #3D5146;
}

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

.article-body img {
  border-radius: 1.35rem;
  margin: 1.8rem 0 1rem;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(16, 40, 31, 0.06);
}

.article-body img + em,
.article-body figure figcaption,
.article-body figcaption {
  display: block;
  text-align: center;
  font-style: normal;
  color: #819087;
  font-size: .85rem;
  margin: -0.45rem auto 1.8rem;
}

.article-body figure {
  margin: 2rem 0;
}

.article-body figure img {
  margin-bottom: .8rem;
}

.article-body hr {
  border: 0;
  border-top: 1px solid var(--color-line);
  margin: 2.5rem 0;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.75rem 0;
  font-size: .95rem;
  border-radius: 1rem;
  overflow: hidden;
  display: block;
  overflow-x: auto;
}

.article-body th,
.article-body td {
  text-align: left;
  padding: .7rem 1rem;
  border-bottom: 1px solid var(--color-line);
}

.article-body th {
  background: var(--color-brand-100);
  color: var(--color-brand-900);
  font-weight: 700;
}

.article-body code {
  background: #EFF3EF;
  color: var(--color-brand-800);
  border-radius: .4rem;
  padding: .1rem .4rem;
  font-size: .9em;
}

.article-body pre {
  background: var(--color-brand-950);
  color: #E8FAEE;
  border-radius: 1.2rem;
  padding: 1.2rem 1.4rem;
  overflow-x: auto;
  margin: 1.5rem 0;
}

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

.not-found-panel {
  max-width: 43rem;
  margin: 0 auto;
  background: #fff;
  border: 1px dashed #C2D5C9;
  border-radius: 2rem;
  text-align: center;
  padding: 4rem 1.8rem 4.2rem;
  box-shadow: var(--shadow-card);
}

.not-found-code {
  display: block;
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: .04em;
  color: var(--color-brand-100);
  line-height: 1;
  margin-bottom: .8rem;
}

.not-found-panel h1 {
  font-size: 1.65rem;
  color: var(--color-brand-900);
  margin: 0 0 .5rem;
}

.not-found-panel p {
  color: var(--color-muted);
  margin: 0 0 1.4rem;
}

.article-divider {
  max-width: 47rem;
  margin: 3rem auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-line) 15%, var(--color-line) 85%, transparent);
}

.article-end-actions {
  max-width: 47rem;
  margin: 1.25rem auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.article-end-actions .back-link {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  color: var(--color-brand-600);
  font-weight: 600;
  font-size: .935rem;
}

.article-end-actions .back-link:hover {
  color: var(--color-brand-800);
}

.post-pager {
  max-width: 47rem;
  margin: 1.25rem auto 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: .8rem;
}

@media (min-width: 768px) {
  .post-pager {
    grid-template-columns: 1fr auto 1fr;
  }
}

.post-nav-card {
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: 1.3rem;
  padding: 1rem 1.25rem;
  color: #5F7267;
  transition: all .2s ease;
  min-height: 5rem;
  text-align: left;
}

.post-nav-card:hover:not(.is-disabled) {
  border-color: #C0DCCB;
  box-shadow: var(--shadow-card-lg);
  transform: translateY(-2px);
  color: var(--color-brand-800);
}

.post-nav-card.is-disabled {
  opacity: .72;
  cursor: not-allowed;
}

.post-nav-card-label {
  display: block;
  font-size: .75rem;
  color: #9AA7A0;
  font-weight: 500;
  margin-bottom: .25rem;
}

.post-nav-card-title {
  display: block;
  font-weight: 700;
  font-size: .9rem;
  color: var(--color-brand-900);
}

.post-nav-home {
  text-align: center;
  justify-content: center;
  display: flex;
  flex-direction: column;
}

@media (min-width: 768px) {
  .post-nav-card + .post-nav-home {
    order: 2;
  }
}

.related-area {
  margin-top: 3.5rem;
}

@media (min-width: 768px) {
  .related-area {
    margin-top: 4.5rem;
  }
}

.related-area-heading {
  max-width: 47rem;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
}

.section-eyebrow {
  color: var(--color-brand-600);
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .08em;
}

.related-area-heading h2 {
  font-size: 1.5rem;
  color: var(--color-brand-950);
  font-weight: 800;
  margin: .2rem 0 0;
}

.related-grid {
  max-width: 47rem;
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.1rem;
}

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

.related-card {
  background: #fff;
  border-radius: 1.3rem;
  padding: 1.4rem 1.3rem;
  border: 1px solid rgba(220, 231, 223, 0.9);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  transition: all .24s ease;
}

.related-card:hover {
  box-shadow: var(--shadow-card-lg);
  transform: translateY(-3px);
  border-color: #C7DCCF;
}

.related-card-time {
  color: #98A59E;
  font-size: .78rem;
  margin-bottom: .7rem;
}

.related-card h3 {
  color: var(--color-brand-900);
  font-size: 1rem;
  line-height: 1.5;
  font-weight: 700;
  margin: 0 0 .5rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-card h3 a:hover {
  color: var(--color-brand-600);
}

.related-card p {
  font-size: .88rem;
  line-height: 1.6;
  color: var(--color-muted);
  margin: .2rem 0 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-card-foot {
  margin-top: auto;
  font-size: .86rem;
  color: var(--color-brand-600);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: .35rem;
}

.related-empty {
  max-width: 47rem;
  margin-inline: auto;
  background: #fff;
  border: 1px dashed #C8D9CF;
  border-radius: 2rem;
  padding: 2.2rem 1.5rem;
  text-align: center;
}

.related-empty p {
  margin: 0 0 1.1rem;
  color: var(--color-muted);
}

.final-cta {
  max-width: 80rem;
  margin: 4rem auto 0;
  padding-inline: 1.25rem;
  padding-bottom: 4.5rem;
}

@media (min-width: 768px) {
  .final-cta {
    padding-inline: 2rem;
  }
}

.cta-gradient {
  background: var(--brand-gradient);
  border-radius: 2.4rem;
  padding: 2.8rem 1.6rem;
  position: relative;
  overflow: hidden;
  color: #fff;
}

@media (min-width: 768px) {
  .cta-gradient {
    padding: 3.8rem 3.5rem;
  }
}

.cta-gradient::after {
  content: "";
  position: absolute;
  right: -6rem;
  top: -7rem;
  width: 22rem;
  height: 22rem;
  background: repeating-linear-gradient(115deg, rgba(206, 236, 114, 0.14) 0 2px, transparent 2px 24px);
  border-radius: 50%;
}

.cta-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 1.8rem;
}

.cta-copy {
  flex: 1 1 20rem;
}

.cta-copy h2 {
  color: #fff;
  font-size: 1.7rem;
  letter-spacing: -0.02em;
  font-weight: 800;
  margin: 0 0 .9rem;
}

.cta-copy p {
  margin: 0;
  max-width: 34rem;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.8;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  align-items: center;
}

.back-top {
  position: fixed;
  right: 1.15rem;
  bottom: 1.15rem;
  z-index: 42;
  width: 2.9rem;
  height: 2.9rem;
  background: var(--color-brand-800);
  color: #fff;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 30px rgba(16, 40, 31, 0.24);
  border: 1px solid rgba(255, 255, 255, 0.12);
  transition: all .2s ease;
}

.back-top:hover {
  background: var(--color-brand-600);
  transform: translateY(-3px);
}

.footer {
  background: var(--color-brand-950);
  color: rgba(255, 255, 255, 0.72);
  margin-top: 0;
  position: relative;
}

.footer-topline {
  height: 4px;
  background: linear-gradient(90deg, var(--color-leaf-400) 0%, #7BAE64 45%, var(--color-brand-800) 100%);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  padding: 3.5rem 0 2.5rem;
}

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

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1.3fr;
    gap: 3rem;
    padding: 4.5rem 0 3.5rem;
  }
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: .6rem;
  color: #fff;
  font-weight: 800;
  font-size: 1.25rem;
  margin-bottom: .8rem;
}

.footer-logo .logo-mark {
  width: 2rem;
  height: 2rem;
}

.footer-desc {
  max-width: 20rem;
  color: rgba(255, 255, 255, 0.6);
  font-size: .9rem;
  line-height: 1.8;
  margin: 0;
}

.footer h4 {
  color: #fff;
  margin: .1rem 0 1rem;
  font-size: .97rem;
  font-weight: 600;
}

.footer-nav {
  display: grid;
  gap: .65rem;
}

.footer-nav a,
.footer-contact li {
  color: rgba(255, 255, 255, 0.62);
  font-size: .9rem;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  line-height: 1.6;
  transition: color .2s ease;
}

.footer-nav a:hover {
  color: #fff;
}

.footer-contact {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .7rem;
}

.footer-contact svg {
  width: 1.05rem;
  height: 1.05rem;
  flex-shrink: 0;
  color: var(--color-leaf-400);
}

.footer-copy {
  border-top: 1px solid rgba(255, 255, 255, 0.09);
  padding: 1.35rem 0 1.6rem;
  font-size: .84rem;
  color: rgba(255, 255, 255, 0.45);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .65rem 1.6rem;
}

.footer-copy a {
  color: rgba(255, 255, 255, 0.55);
}

.footer-copy a:hover {
  color: #fff;
}

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

/* roulang page: category2 */
:root {
            --color-brand-950: #10281F;
            --color-brand-900: #12332A;
            --color-brand-800: #194D3A;
            --color-brand-600: #11785A;
            --color-brand-100: #E3F2EA;
            --color-leaf-400: #CEEC72;
            --color-leaf-100: #F0F9D8;
            --color-ember-600: #C8481B;
            --color-ember-400: #FB7D3E;
            --color-ember-100: #FCE6DB;
            --color-canvas: #F6F7F1;
            --color-ink: #182720;
            --color-line: #DCE7DF;
            --shadow-card: 0 1px 3px rgba(16, 40, 31, 0.06);
            --shadow-hover: 0 16px 40px rgba(16, 40, 31, 0.10);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background: var(--color-canvas);
            color: var(--color-ink);
            font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", system-ui, sans-serif;
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button {
            font-family: inherit;
        }

        h1,
        h2,
        h3,
        h4,
        p,
        ul {
            margin-top: 0;
        }

        .container {
            width: 100%;
            max-width: 80rem;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 1024px) {
            .container {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        .section {
            padding-top: 5rem;
            padding-bottom: 5rem;
        }

        @media (min-width: 1024px) {
            .section {
                padding-top: 6rem;
                padding-bottom: 6rem;
            }
        }

        .section-head {
            max-width: 42rem;
            margin-bottom: 2.5rem;
        }

        .section-head .eyebrow {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            padding: 0.25rem 0.9rem;
            border-radius: 999px;
            background: var(--color-leaf-100);
            color: var(--color-brand-800);
            margin-bottom: 1rem;
            letter-spacing: 0.05em;
        }

        .section-head h2 {
            font-size: clamp(1.75rem, 3vw, 2.35rem);
            font-weight: 800;
            line-height: 1.25;
            color: var(--color-brand-950);
            margin-bottom: 0.65rem;
        }

        .section-head p {
            color: #53675e;
            font-size: 1rem;
            margin: 0;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.85rem 1.6rem;
            border-radius: 999px;
            font-size: 0.95rem;
            font-weight: 600;
            line-height: 1;
            border: 1px solid transparent;
            cursor: pointer;
            transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
            white-space: nowrap;
        }

        .btn:focus-visible {
            outline: none;
            ring: none;
            box-shadow: 0 0 0 2px #fff, 0 0 0 5px var(--color-brand-600);
        }

        .btn-primary {
            background: var(--color-brand-800);
            color: #fff;
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, #10281F 0%, #11785A 100%);
            box-shadow: 0 12px 28px rgba(25, 77, 58, 0.23);
            transform: translateY(-2px);
        }

        .btn-accent {
            background: var(--color-ember-600);
            color: #fff;
        }

        .btn-accent:hover {
            background: #b33d17;
            box-shadow: 0 12px 28px rgba(200, 72, 27, 0.24);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            color: var(--color-brand-800);
            border-color: var(--color-brand-800);
        }

        .btn-outline:hover {
            background: var(--color-brand-100);
            border-color: var(--color-brand-600);
            color: var(--color-brand-900);
            transform: translateY(-2px);
        }

        .btn:active {
            transform: translateY(0) scale(0.98);
        }

        /* Chips / tags */
        .chip {
            display: inline-flex;
            align-items: center;
            font-size: 0.8rem;
            padding: 0.3rem 0.9rem;
            border-radius: 999px;
            background: var(--color-brand-100);
            color: var(--color-brand-800);
            font-weight: 500;
            line-height: 1.4;
        }

        .chip-dark {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.14);
        }

        .chip-orange {
            background: var(--color-ember-100);
            color: var(--color-ember-600);
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(220, 231, 223, 0.8);
        }

        .nav-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 5rem;
            gap: 2rem;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            color: var(--color-brand-900);
            font-weight: 800;
            font-size: 1.275rem;
            letter-spacing: 0.02em;
        }

        .logo-mark {
            width: 2.1rem;
            height: 2.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 0.7rem;
            background: var(--color-brand-800);
            color: #fff;
            flex-shrink: 0;
        }

        .nav-links {
            display: none;
            align-items: center;
            gap: 1.75rem;
        }

        .nav-links a {
            position: relative;
            color: #41534a;
            font-size: 0.95rem;
            font-weight: 500;
            padding: 0.35rem 0;
        }

        .nav-links a:hover {
            color: var(--color-brand-800);
        }

        .nav-links a.active {
            color: var(--color-brand-800);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -4px;
            width: 100%;
            height: 2px;
            border-radius: 999px;
            background: var(--color-brand-600);
        }

        .nav-toggle {
            width: 2.5rem;
            height: 2.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            border: 1px solid var(--color-line);
            border-radius: 0.75rem;
            color: var(--color-brand-800);
            cursor: pointer;
        }

        @media (min-width: 1024px) {
            .nav-links {
                display: flex;
            }
            .nav-toggle {
                display: none;
            }
        }

        .mobile-nav {
            display: none;
        }

        .mobile-nav.open {
            display: block;
            background: #fff;
            border-top: 1px solid var(--color-line);
        }

        .mobile-nav a {
            display: block;
            padding: 0.95rem 1.25rem;
            font-weight: 500;
            color: var(--color-ink);
            border-bottom: 1px solid #eef3ef;
        }

        .mobile-nav a.active {
            color: var(--color-brand-800);
            background: var(--color-brand-100);
        }

        /* Hero compact */
        .hero-category {
            position: relative;
            background: radial-gradient(circle at 20% 20%, rgba(206, 236, 114, 0.2), transparent 34%), linear-gradient(135deg, #fff 0%, #f5f9f1 100%);
            overflow: hidden;
            border-bottom: 1px solid var(--color-line);
        }

        .hero-category .hero-grid {
            display: grid;
            gap: 2.5rem;
            align-items: center;
            padding-top: 4rem;
            padding-bottom: 4rem;
        }

        @media (min-width: 1024px) {
            .hero-category .hero-grid {
                grid-template-columns: 1fr 0.9fr;
                padding-top: 5rem;
                padding-bottom: 5rem;
            }
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.4rem;
            font-size: 0.82rem;
            color: #72877c;
            margin-bottom: 1.25rem;
        }

        .breadcrumb a:hover {
            color: var(--color-brand-800);
        }

        .hero-img-wrap {
            position: relative;
            border-radius: 2rem;
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            border: 1px solid rgba(0, 0, 0, 0.04);
        }

        .hero-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 260px;
            aspect-ratio: 4 / 3;
        }

        @media (min-width: 1024px) {
            .hero-img-wrap img {
                aspect-ratio: 11 / 10;
            }
        }

        .hero-badge {
            position: absolute;
            left: 1.25rem;
            bottom: 1.25rem;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.7);
            padding: 0.75rem 1.1rem;
            border-radius: 1.1rem;
            box-shadow: 0 8px 24px rgba(16, 40, 31, 0.14);
            transform: rotate(-2deg);
            min-width: 130px;
            line-height: 1.2;
        }

        .hero-badge strong {
            font-size: 1.6rem;
            font-weight: 900;
            color: var(--color-ember-600);
            font-variant-numeric: tabular-nums;
        }

        .hero-badge span {
            display: block;
            font-size: 0.76rem;
            color: #587066;
            margin-top: 0.15rem;
        }

        /* Matrix grid */
        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(12, minmax(0, 1fr));
            gap: 1.25rem;
        }

        @media (min-width: 768px) {
            .matrix-grid {
                gap: 1.5rem;
            }
        }

        .matrix-card {
            background: #fff;
            border-radius: 1.5rem;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-line);
            padding: 1.75rem;
            transition: box-shadow 0.25s ease, transform 0.25s ease;
            display: flex;
            flex-direction: column;
        }

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

        .matrix-card--hero {
            grid-column: 1 / -1;
            background: linear-gradient(135deg, #F0F9D8 0%, #ffffff 52%, #E3F2EA 100%);
            border-color: rgba(206, 236, 114, 0.55);
            padding: 0;
            gap: 1.5rem;
        }

        @media (min-width: 1024px) {
            .matrix-card--hero {
                display: grid;
                grid-template-columns: 1.15fr 0.85fr;
            }
        }

        .matrix-card--hero .hero-info {
            padding: 1.75rem 1.75rem 0;
        }

        @media (min-width: 1024px) {
            .matrix-card--hero .hero-info {
                padding: 2rem;
            }
        }

        .matrix-card--hero .hero-media {
            min-height: 220px;
            overflow: hidden;
            border-radius: 0 0 1.5rem 1.5rem;
            position: relative;
        }

        @media (min-width: 1024px) {
            .matrix-card--hero .hero-media {
                border-radius: 0 1.5rem 1.5rem 0;
                min-height: 300px;
            }
        }

        .matrix-card--hero .hero-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }

        .matrix-card--tall {
            grid-column: span 12;
            min-height: 250px;
        }

        .matrix-card--wide {
            grid-column: span 12;
        }

        @media (min-width: 768px) {
            .matrix-card--tall {
                grid-column: span 5;
            }
            .matrix-card--tall-2 {
                grid-column: span 7;
            }
            .matrix-card--wide {
                grid-column: span 7;
            }
            .matrix-card--wide-2 {
                grid-column: span 5;
            }
        }

        .card-num {
            display: inline-flex;
            width: 2rem;
            height: 2rem;
            border-radius: 999px;
            align-items: center;
            justify-content: center;
            font-size: 0.78rem;
            font-weight: 800;
            background: var(--color-leaf-100);
            color: var(--color-brand-800);
            margin-bottom: 1.5rem;
        }

        .matrix-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            line-height: 1.4;
            color: var(--color-brand-950);
            margin-bottom: 0.6rem;
        }

        .matrix-card p {
            color: #5a6f64;
            line-height: 1.75;
            margin-bottom: 1rem;
            font-size: 0.94rem;
        }

        .arrow-link {
            display: inline-flex;
            align-items: center;
            gap: 0.45rem;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-brand-800);
            margin-top: auto;
        }

        .arrow-link:hover {
            color: var(--color-ember-600);
        }

        .arrow-link .arrow-circle {
            width: 2rem;
            height: 2rem;
            border-radius: 999px;
            background: var(--color-brand-100);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background 0.2s ease, transform 0.2s ease;
        }

        .arrow-link:hover .arrow-circle {
            background: var(--color-ember-100);
            transform: translateX(2px);
        }

        .check-list {
            list-style: none;
            padding: 0;
            margin: 1rem 0 0.5rem;
        }

        .check-list li {
            display: flex;
            gap: 0.5rem;
            align-items: flex-start;
            color: #4d6157;
            font-size: 0.9rem;
            margin-bottom: 0.45rem;
        }

        /* Process / dark section */
        .process-section {
            background: linear-gradient(135deg, var(--color-brand-950) 0%, var(--color-brand-800) 60%, #2f8a68 100%);
            color: #fff;
            border-radius: 0;
        }

        .process-section .section-head h2 {
            color: #fff;
        }

        .process-section .section-head p {
            color: rgba(255, 255, 255, 0.72);
        }

        .process-grid {
            display: grid;
            gap: 1rem;
        }

        @media (min-width: 900px) {
            .process-grid {
                grid-template-columns: repeat(4, 1fr);
                gap: 1.25rem;
            }
        }

        .process-card {
            border: 1px solid rgba(255, 255, 255, 0.1);
            background: rgba(255, 255, 255, 0.05);
            border-radius: 1.5rem;
            padding: 1.5rem;
        }

        .process-card .step-num {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--color-leaf-400);
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            margin-bottom: 0.75rem;
        }

        .process-card h3 {
            font-size: 1.08rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.35rem;
        }

        .process-card p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            line-height: 1.7;
            margin: 0;
        }

        /* Scene cards */
        .scene-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.9rem;
        }

        .scene-chip {
            display: flex;
            align-items: center;
            gap: 0.55rem;
            background: #fff;
            border: 1px solid var(--color-line);
            border-radius: 999px;
            padding: 0.6rem 1.2rem;
            font-weight: 500;
            color: var(--color-brand-900);
            transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
            box-shadow: var(--shadow-card);
        }

        .scene-chip:hover {
            border-color: var(--color-brand-600);
            background: var(--color-brand-100);
            transform: translateY(-1px);
        }

        .scene-chip svg {
            color: var(--color-ember-600);
        }

        /* CTA */
        .cta-wrap {
            position: relative;
            border-radius: 2.5rem;
            overflow: hidden;
            background-color: var(--color-brand-900);
        }

        .cta-bg {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.42;
        }

        .cta-inner {
            position: relative;
            padding: 3.5rem 2rem;
            text-align: center;
        }

        @media (min-width: 768px) {
            .cta-inner {
                padding: 5.5rem 4rem;
            }
        }

        .cta-inner h2 {
            color: #fff;
            font-size: clamp(1.8rem, 3vw, 2.6rem);
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 0.9rem;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, 0.85);
            max-width: 38rem;
            margin: 0 auto 2rem;
            font-size: 1rem;
        }

        /* FAQ */
        .faq-list {
            display: grid;
            gap: 1rem;
            max-width: 56rem;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--color-line);
            border-radius: 1.5rem;
            box-shadow: var(--shadow-card);
        }

        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.3rem 1.5rem;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-brand-950);
            line-height: 1.5;
        }

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

        .faq-item[open] summary {
            border-bottom: 1px solid #eef3ef;
        }

        .faq-item summary .icon {
            width: 1.8rem;
            height: 1.8rem;
            border-radius: 999px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--color-brand-100);
            color: var(--color-brand-800);
            font-size: 1.25rem;
            flex-shrink: 0;
        }

        .faq-item[open] summary .icon {
            background: var(--color-ember-100);
            color: var(--color-ember-600);
        }

        .faq-body {
            padding: 1.2rem 1.5rem 1.5rem;
            color: #5a6f64;
            line-height: 1.8;
            font-size: 0.95rem;
        }

        /* Footer */
        .footer {
            background: var(--color-brand-950);
            color: #d2e0d8;
            margin-top: 0;
        }

        .footer-topline {
            height: 4px;
            background: var(--color-leaf-400);
        }

        .footer-grid {
            display: grid;
            gap: 2.5rem;
            padding: 4rem 0 2rem;
        }

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

        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1.4fr 0.8fr 1fr 1fr;
                gap: 2rem;
            }
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 0.7rem;
            color: #fff;
            font-size: 1.3rem;
            font-weight: 800;
            margin-bottom: 0.9rem;
        }

        .footer-brand .logo-mark {
            background: var(--color-leaf-400);
            color: var(--color-brand-900);
        }

        .footer-desc {
            font-size: 0.93rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.68);
            margin-bottom: 0;
            max-width: 22rem;
        }

        .footer h4 {
            margin: 0 0 1rem;
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
        }

        .footer-nav {
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }

        .footer-nav a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.92rem;
            width: fit-content;
        }

        .footer-nav a:hover {
            color: var(--color-leaf-400);
        }

        .footer-contact {
            list-style: none;
            margin: 0;
            padding: 0;
            display: grid;
            gap: 0.8rem;
        }

        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 0.55rem;
            color: rgba(255, 255, 255, 0.68);
            font-size: 0.9rem;
        }

        .footer-contact svg {
            width: 1.1rem;
            height: 1.1rem;
            flex-shrink: 0;
            color: var(--color-leaf-400);
            margin-top: 0.2rem;
        }

        .footer-copy {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 1.5rem 0 2.5rem;
            display: flex;
            flex-direction: column;
            gap: 0.4rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }

        @media (min-width: 768px) {
            .footer-copy {
                flex-direction: row;
                justify-content: space-between;
            }
        }

        .footer-copy a {
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-copy a:hover {
            color: #fff;
        }

        .back-top {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.42);
            padding: 0.5rem 0;
        }

        .back-top:hover {
            color: var(--color-leaf-400);
        }

/* roulang page: category3 */
:root {
            --color-brand-950: #10281F;
            --color-brand-900: #12332A;
            --color-brand-800: #194D3A;
            --color-brand-600: #11785A;
            --color-brand-100: #E3F2EA;
            --color-leaf-400: #CEEC72;
            --color-leaf-100: #F0F9D8;
            --color-ember-600: #C8481B;
            --color-ember-400: #FB7D3E;
            --color-ember-100: #FCE6DB;
            --color-canvas: #F6F7F1;
            --color-ink: #182720;
            --color-line: #DCE7DF;
            --shadow-sm: 0 1px 3px rgba(16, 40, 31, .06);
            --shadow-md: 0 12px 30px rgba(16, 40, 31, .08);
            --shadow-lg: 0 16px 40px rgba(16, 40, 31, .12);
            --radius-sm: 12px;
            --radius-md: 18px;
            --radius-lg: 24px;
            --radius-xl: 30px;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 1.25rem;
            box-shadow: var(--shadow-sm);
        }

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

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

        h1,
        h2,
        h3,
        h4 {
            margin: 0;
            line-height: 1.3;
            color: var(--color-brand-950);
            letter-spacing: -0.01em;
        }

        p {
            margin: 0;
        }

        figure {
            margin: 0;
        }

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

        .container {
            max-width: 80rem;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

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

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: .5rem;
            font-size: .78rem;
            font-weight: 700;
            letter-spacing: .12em;
            color: var(--color-brand-600);
        }

        .eyebrow.light {
            color: var(--color-leaf-400);
        }

        /* 按钮体系 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            padding: .8rem 1.5rem;
            border-radius: 999px;
            border: 1px solid transparent;
            font-weight: 600;
            font-size: .92rem;
            line-height: 1.2;
            transition: all .25s ease;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 22px rgba(16, 40, 31, .12);
        }

        .btn:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-primary {
            background: var(--color-brand-800);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--color-brand-600);
        }

        .btn-outline {
            background: #fff;
            border-color: var(--color-brand-600);
            color: var(--color-brand-800);
        }

        .btn-outline:hover {
            background: var(--color-brand-100);
            border-color: var(--color-brand-800);
            color: var(--color-brand-900);
        }

        .btn-ember {
            background: var(--color-ember-600);
            color: #fff;
        }

        .btn-ember:hover {
            background: var(--color-ember-400);
        }

        .btn-light {
            background: rgba(255, 255, 255, .12);
            color: #fff;
            border-color: rgba(255, 255, 255, .35);
        }

        .btn-light:hover {
            background: rgba(255, 255, 255, .24);
            border-color: rgba(255, 255, 255, .6);
        }

        a:focus-visible,
        button:focus-visible,
        summary:focus-visible {
            outline: 3px solid rgba(200, 72, 27, .4);
            outline-offset: 3px;
            border-radius: 999px;
        }

        img:focus-visible {
            outline: 3px solid rgba(25, 77, 58, .4);
            outline-offset: 2px;
        }

        /* Header 与导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255, 255, 255, .96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(220, 231, 223, .8);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 5rem;
            gap: 1.5rem;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: .55rem;
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--color-brand-900);
            letter-spacing: -0.02em;
        }

        .brand-logo:hover {
            color: var(--color-brand-800);
        }

        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 12px;
            background: linear-gradient(135deg, #10281F 0%, #194D3A 60%, #2F8A68 100%);
            color: var(--color-leaf-400);
            box-shadow: 0 6px 14px rgba(16, 40, 31, .18);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.9rem;
        }

        .nav-links a {
            position: relative;
            font-weight: 500;
            color: #5A6E63;
            padding: .5rem 0;
            transition: color .2s ease;
        }

        .nav-links a:hover {
            color: var(--color-brand-800);
        }

        .nav-links a.active {
            color: var(--color-brand-800);
            font-weight: 700;
        }

        .nav-links a.active::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            background: var(--color-brand-800);
            border-radius: 999px;
        }

        .header-cta {
            padding: .68rem 1.35rem;
            font-size: .88rem;
        }

        .nav-toggle {
            display: none;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            width: 44px;
            height: 44px;
            border-radius: 999px;
            border: 1px solid var(--color-line);
            background: #fff;
            cursor: pointer;
            transition: all .2s ease;
        }

        .nav-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            border-radius: 2px;
            background: var(--color-brand-800);
            transition: transform .3s ease, opacity .3s ease;
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-panel {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: #fff;
            padding: 1.25rem 1.5rem 1.75rem;
            border-bottom: 1px solid var(--color-line);
            box-shadow: var(--shadow-md);
            border-radius: 0 0 24px 24px;
        }

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

        .mobile-nav {
            display: flex;
            flex-direction: column;
            gap: .15rem;
            margin-bottom: 1rem;
        }

        .mobile-nav a {
            display: block;
            padding: .8rem .2rem;
            border-bottom: 1px solid #f0f4f1;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-brand-900);
            border-radius: 8px;
        }

        .mobile-nav a.active {
            color: var(--color-ember-600);
        }

        .mobile-cta {
            width: 100%;
            margin-top: .5rem;
        }

        @media (max-width: 1023px) {
            .nav-links,
            .header-cta {
                display: none;
            }
            .nav-toggle {
                display: inline-flex;
            }
        }

        /* 页面 Hero */
        .page-hero {
            position: relative;
            overflow: hidden;
            background: linear-gradient(180deg, #EDF3EB 0%, var(--color-canvas) 100%);
            padding: 3.5rem 0 3rem;
            border-bottom: 1px solid rgba(220, 231, 223, .7);
        }

        .page-hero::before {
            content: "";
            position: absolute;
            top: -140px;
            right: 6%;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(206, 236, 114, .32) 0%, transparent 65%);
            pointer-events: none;
        }

        .page-hero-grid {
            position: relative;
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            align-items: center;
        }

        @media (min-width: 1024px) {
            .page-hero {
                padding: 4.5rem 0 4rem;
            }
            .page-hero-grid {
                grid-template-columns: minmax(0, 1.35fr) minmax(0, .75fr);
                gap: 3rem;
            }
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: .55rem;
            font-size: .86rem;
            color: #7B8C83;
            margin-bottom: 1.2rem;
        }

        .breadcrumb a {
            color: var(--color-brand-600);
            font-weight: 500;
            transition: color .2s ease;
        }

        .breadcrumb a:hover {
            color: var(--color-ember-600);
        }

        .breadcrumb span[aria-current="page"] {
            color: #3E5146;
            font-weight: 500;
        }

        .page-hero-main h1 {
            font-size: clamp(1.9rem, 4vw, 2.9rem);
            font-weight: 800;
            max-width: 11em;
            letter-spacing: -0.02em;
            color: var(--color-brand-950);
            margin-bottom: 1.25rem;
        }

        .page-hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: .8rem;
            margin-top: 1.75rem;
        }

        .hero-lede {
            color: #425548;
            max-width: 540px;
            font-size: 1.02rem;
            line-height: 1.8;
        }

        .page-hero-side {
            display: grid;
            gap: .4rem;
            padding: 2rem 1.75rem;
            background: #fff;
            border: 1px solid rgba(220, 231, 223, .9);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border-left: 4px solid var(--color-brand-600);
        }

        .page-hero-side p {
            color: #425548;
            font-size: .95rem;
            margin-bottom: 1rem;
            line-height: 1.6;
        }

        .page-hero-side p:last-child {
            margin-bottom: 0;
        }

        .page-hero-side .eyebrow {
            margin-top: .6rem;
        }

        /* 分类页主体 */
        .guide-section {
            padding: 3.5rem 0 1rem;
        }

        .guide-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr);
            gap: 2.2rem;
            align-items: start;
        }

        @media (min-width: 1024px) {
            .guide-section {
                padding: 4rem 0 1.5rem;
            }
            .guide-layout {
                grid-template-columns: minmax(0, 1fr) 350px;
                gap: 2.5rem;
            }
        }

        .guide-main {
            display: flex;
            flex-direction: column;
            gap: 1.8rem;
        }

        .guide-card {
            background: #fff;
            border: 1px solid rgba(220, 231, 223, .85);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 1.6rem 1.5rem;
            transition: box-shadow .3s ease, transform .3s ease;
        }

        @media (min-width: 768px) {
            .guide-card {
                padding: 2.2rem 2.2rem;
            }
        }

        .guide-card:hover {
            box-shadow: var(--shadow-lg);
        }

        .card-head {
            margin-bottom: 1.25rem;
        }

        .card-head h2 {
            font-size: 1.55rem;
            font-weight: 750;
            margin-top: .45rem;
            color: var(--color-brand-950);
        }

        .section-note {
            margin-top: .65rem;
            color: #61776B;
            font-size: .95rem;
        }

        /* 开班步骤 */
        .step-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
            margin-top: 1rem;
        }

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

        .step-item {
            display: flex;
            align-items: flex-start;
            gap: .9rem;
            background: #FAFDFA;
            padding: 1.1rem 1rem;
            border: 1px solid #E2EAE4;
            border-radius: 20px;
            transition: border-color .2s ease, transform .2s ease;
        }

        .step-item:hover {
            border-color: var(--color-brand-600);
            transform: translateY(-2px);
        }

        .step-num {
            flex: 0 0 auto;
            width: 42px;
            height: 42px;
            border-radius: 999px;
            background: var(--color-brand-100);
            color: var(--color-brand-800);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: .95rem;
            font-variant-numeric: tabular-nums;
        }

        .step-copy h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: .3rem;
        }

        .step-copy p {
            font-size: .88rem;
            color: #61766B;
            line-height: 1.7;
        }

        /* 课堂流程 */
        .flow-wrap {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
            align-items: center;
            margin-top: .6rem;
        }

        @media (min-width: 900px) {
            .flow-wrap {
                grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
                gap: 2rem;
            }
        }

        .flow-timeline {
            display: flex;
            flex-direction: column;
        }

        .flow-timeline li {
            position: relative;
            padding: 0 0 1.3rem 2rem;
        }

        .flow-timeline li:last-child {
            padding-bottom: 0;
        }

        .flow-timeline li::before {
            content: "";
            position: absolute;
            left: 3px;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 999px;
            background: var(--color-leaf-400);
            border: 4px solid var(--color-brand-800);
            box-shadow: 0 0 0 3px rgba(25, 77, 58, .08);
            z-index: 1;
        }

        .flow-timeline li::after {
            content: "";
            position: absolute;
            left: 9px;
            top: 26px;
            bottom: 2px;
            width: 2px;
            background: #DCE5DF;
        }

        .flow-timeline li:last-child::after {
            display: none;
        }

        .time-tag {
            display: inline-block;
            font-size: .75rem;
            font-weight: 700;
            color: var(--color-brand-600);
            background: var(--color-brand-100);
            border-radius: 999px;
            padding: .2rem .7rem;
            margin-bottom: .35rem;
            font-variant-numeric: tabular-nums;
            letter-spacing: .02em;
        }

        .flow-timeline h3 {
            font-size: 1.02rem;
            font-weight: 700;
            margin-bottom: .2rem;
        }

        .flow-timeline p {
            color: #61766B;
            font-size: .9rem;
            line-height: 1.7;
            max-width: 46ch;
        }

        .flow-figure img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
            border-radius: 24px;
            box-shadow: var(--shadow-md);
        }

        .flow-figure figcaption {
            margin-top: .55rem;
            font-size: .8rem;
            color: #809086;
            text-align: center;
        }

        /* FAQ */
        .faq-panel {
            margin-top: 0;
        }

        .faq-list {
            margin-top: .5rem;
            display: flex;
            flex-direction: column;
            gap: .9rem;
        }

        .faq-item {
            background: #FBFCFB;
            border: 1px solid var(--color-line);
            border-radius: 20px;
            padding: 1.1rem 1.3rem;
            transition: border-color .2s ease, box-shadow .2s ease;
        }

        .faq-item:hover {
            border-color: #B9CEC1;
        }

        .faq-item[open] {
            background-color: #fff;
            box-shadow: var(--shadow-sm);
            border-color: var(--color-brand-100);
        }

        .faq-item summary {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            cursor: pointer;
            list-style: none;
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-brand-950);
            line-height: 1.5;
        }

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

        .faq-item summary::after {
            content: "+";
            font-size: 1.6rem;
            font-weight: 400;
            line-height: 1;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--color-brand-600);
            transition: transform .3s ease;
            background: var(--color-brand-100);
            width: 32px;
            height: 32px;
            border-radius: 999px;
            flex: 0 0 auto;
        }

        .faq-item[open] summary::after {
            content: "×";
            transform: rotate(90deg);
            color: var(--color-ember-600);
            background: var(--color-ember-100);
        }

        .faq-answer {
            border-top: 1px solid #E6EDE8;
            margin-top: .95rem;
            padding-top: .9rem;
            font-size: .92rem;
            color: #52665B;
            line-height: 1.8;
            padding-right: 1rem;
        }

        /* 右侧相关卡片 */
        .guide-aside-sticky {
            position: relative;
            top: 0;
        }

        @media (min-width: 1024px) {
            .guide-aside-sticky {
                position: sticky;
                top: 6.8rem;
                display: flex;
                flex-direction: column;
                gap: 1.25rem;
            }
        }

        .aside-inner {
            display: flex;
            flex-direction: column;
            gap: 1.25rem;
        }

        .aside-card {
            background: #fff;
            border: 1px solid rgba(220, 231, 223, .9);
            border-radius: var(--radius-lg);
            padding: 1.4rem 1.5rem;
            box-shadow: var(--shadow-sm);
        }

        .aside-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-brand-950);
            margin-bottom: .6rem;
        }

        .aside-card p {
            font-size: .9rem;
            color: #5B7166;
            line-height: 1.7;
            margin-bottom: .9rem;
        }

        .aside-links {
            padding: 1.3rem 1.2rem;
        }

        .service-link {
            display: block;
            padding: .9rem .35rem;
            border-bottom: 1px solid #EDF1EE;
            transition: background-color .2s ease, padding-left .2s ease;
            border-radius: 10px;
        }

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

        .service-link:hover {
            background: #F3F9F4;
            padding-left: .7rem;
        }

        .service-link strong {
            display: block;
            font-size: .92rem;
            color: var(--color-brand-900);
            font-weight: 700;
            margin-bottom: .15rem;
        }

        .service-link span {
            display: block;
            font-size: .82rem;
            color: #83938A;
            line-height: 1.55;
        }

        .aside-check li {
            position: relative;
            padding: .45rem 0 .45rem 1.4rem;
            font-size: .9rem;
            color: #50665A;
            line-height: 1.6;
        }

        .aside-check li::before {
            content: "";
            position: absolute;
            left: 0;
            top: .85rem;
            width: 10px;
            height: 10px;
            background: var(--color-leaf-400);
            border-radius: 999px;
        }

        /* 横向 CTA */
        .bottom-cta {
            padding: 3rem 0 5rem;
        }

        .cta-box {
            position: relative;
            overflow: hidden;
            border-radius: 32px;
            background: linear-gradient(105deg, rgba(16, 40, 31, .96), rgba(18, 51, 42, .82) 55%, rgba(47, 138, 104, .72)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 2.5rem 1.8rem;
            display: grid;
            gap: 1.6rem;
            color: #fff;
        }

        @media (min-width: 768px) {
            .cta-box {
                padding: 3.2rem 3rem;
                grid-template-columns: 1fr auto;
                align-items: center;
                gap: 2.5rem;
            }
        }

        .cta-box h2 {
            color: #fff;
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            line-height: 1.3;
            font-weight: 800;
            margin: .4rem 0 .6rem;
        }

        .cta-box p {
            color: rgba(255, 255, 255, .82);
            font-size: .98rem;
            line-height: 1.8;
            max-width: 30rem;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: .75rem;
        }

        /* Footer */
        .footer {
            background: var(--color-brand-950);
            color: #C4D5CB;
            font-size: .88rem;
        }

        .footer-topline {
            height: 3px;
            background: linear-gradient(90deg, #CEEC72 0%, #2F8A68 55%, rgba(255, 255, 255, .6) 100%);
        }

        .footer .container {
            padding-top: 3rem;
            padding-bottom: 1.6rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.25rem 1.8rem;
        }

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

        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1.3fr .8fr .9fr 1fr;
                gap: 3rem 2rem;
            }
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: .6rem;
            font-size: 1.25rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: .7rem;
        }

        .footer-brand .logo-mark {
            color: #fff;
        }

        .footer-desc {
            color: rgba(220, 235, 227, .72);
            line-height: 1.8;
            max-width: 16rem;
        }

        .footer h4 {
            color: #fff;
            font-size: .98rem;
            font-weight: 700;
            margin-bottom: .9rem;
            letter-spacing: .02em;
        }

        .footer-nav {
            display: flex;
            flex-direction: column;
            gap: .5rem;
        }

        .footer-nav a {
            color: rgba(220, 235, 227, .72);
            transition: color .2s ease, padding-left .2s ease;
            line-height: 1.4;
        }

        .footer-nav a:hover {
            color: var(--color-leaf-400);
            padding-left: 4px;
        }

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: .7rem;
        }

        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: .5rem;
            color: rgba(220, 235, 227, .78);
            line-height: 1.6;
        }

        .footer-contact svg {
            flex: 0 0 auto;
            width: 18px;
            height: 18px;
            margin-top: .15rem;
            color: var(--color-leaf-400);
            opacity: .8;
        }

        .footer-copy {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: .8rem;
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding-top: 1.4rem;
            margin-top: 1.5rem;
            font-size: .82rem;
            color: rgba(220, 235, 227, .55);
        }

        /* focus 与 misc */
        .back-top {
            color: rgba(255, 255, 255, .85);
            text-decoration: underline;
            text-underline-offset: 4px;
            font-weight: 500;
        }

        .back-top:hover {
            color: var(--color-leaf-400);
        }