/* roulang page: index */
:root {
            --primary: #E07A1F;
            --primary-dark: #C66410;
            --primary-soft: #FBE9D6;
            --secondary: #226B58;
            --secondary-soft: #E4F1EB;
            --bg: #F7F4EE;
            --bg-deep: #EFEAE1;
            --card-bg: #FFFFFF;
            --hero-grad: linear-gradient(135deg, #FBEDDE 0%, #F4E3D1 100%);
            --text-strong: #1E2019;
            --text-body: #2C2B2A;
            --text-weak: #7A7A70;
            --border: #E6E0D3;
            --border-deep: #D5CDBD;
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 8px;
            --shadow-card: 0 4px 16px rgba(30, 20, 5, 0.06);
            --shadow-hover: 0 12px 32px rgba(30, 20, 5, 0.12);
            --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "微软雅黑", sans-serif;
            --font-num: "Inter", ui-monospace, "SFMono-Regular", Menlo, monospace;
            --transition: cubic-bezier(0.2, 0, 0, 1) 0.25s;
            --section-gap: 96px;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(224, 122, 31, .35);
            outline-offset: 2px;
        }

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

        .o-container--narrow {
            max-width: 860px;
        }

        .text-brand {
            color: var(--primary);
        }

        .text-secondary {
            color: var(--secondary);
        }

        .text-weak {
            color: var(--text-weak);
        }

        /* ---------- Header ---------- */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 60;
            background: rgba(255, 255, 255, .96);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 0 rgba(244, 236, 225, .6);
        }

        .header-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            gap: 20px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand__icon {
            width: 36px;
            height: 36px;
            border-radius: 12px;
            background: linear-gradient(140deg, #F6A64B, #D97318);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 19px;
            box-shadow: 0 4px 12px rgba(224, 122, 31, .28);
        }

        .brand__text {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 0;
            color: var(--text-strong);
            white-space: nowrap;
            line-height: 1.2;
        }

        .brand__text small {
            display: block;
            font-size: 11px;
            color: var(--text-weak);
            font-weight: 400;
            letter-spacing: .08em;
            margin-top: 1px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 4px;
            flex: 1;
            min-width: 0;
        }

        .main-nav a {
            position: relative;
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            border-radius: 999px;
            white-space: nowrap;
            transition: all var(--transition);
        }

        .main-nav a:hover {
            color: var(--primary-dark);
            background: var(--primary-soft);
        }

        .main-nav a.is-active {
            color: #fff;
            background: var(--primary);
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(224, 122, 31, .2);
        }

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

        .header-search {
            display: flex;
            align-items: center;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 999px;
            height: 42px;
            padding: 0 14px;
            gap: 8px;
            transition: box-shadow var(--transition), border-color var(--transition);
        }

        .header-search i {
            color: var(--text-weak);
            font-size: 14px;
        }

        .header-search input {
            border: none;
            background: transparent;
            font-size: 14px;
            width: 120px;
            outline: none;
            font-family: var(--font-sans);
        }

        .header-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(224, 122, 31, .14);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-family: var(--font-sans);
            font-size: 15px;
            font-weight: 600;
            border-radius: 999px;
            padding: 11px 24px;
            border: 1px solid transparent;
            line-height: 1.2;
            cursor: pointer;
            transition: all .15s ease;
            text-align: center;
            white-space: nowrap;
        }

        .btn--primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 18px rgba(224, 122, 31, .24);
        }

        .btn--primary:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 10px 22px rgba(224, 122, 31, .3);
        }

        .btn--primary:active {
            transform: translateY(1px) scale(.99);
        }

        .btn--ghost {
            background: #fff;
            border-color: var(--border-deep);
            color: var(--text-strong);
        }

        .btn--ghost:hover {
            background: var(--primary-soft);
            border-color: var(--primary);
            color: var(--primary-dark);
        }

        .btn--white {
            background: #fff;
            color: var(--primary-dark);
        }

        .btn--white:hover {
            background: var(--primary-soft);
        }

        .btn--dark {
            background: #262018;
            color: #FFF8EF;
        }

        .btn--dark:hover {
            background: #3B2E24;
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            border: 1px solid var(--border);
            background: #fff;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--text-strong);
            cursor: pointer;
        }

        .mobile-menu {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 12px 20px 20px;
        }

        .mobile-menu a {
            display: block;
            padding: 12px 16px;
            font-size: 15px;
            color: var(--text-body);
            border-radius: 12px;
            margin-bottom: 4px;
        }

        .mobile-menu a:hover {
            background: var(--primary-soft);
            color: var(--primary-dark);
        }

        .mobile-menu a.is-active {
            background: var(--primary);
            color: #fff;
        }

        /* ---------- Sections common ---------- */
        .section {
            padding: var(--section-gap) 0;
        }

        .section--tint {
            background: #FFFDF9;
        }

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

        .section__head {
            margin-bottom: 48px;
        }

        .section__head--center {
            text-align: center;
            max-width: 740px;
            margin-left: auto;
            margin-right: auto;
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .02em;
            color: var(--primary-dark);
            background: var(--primary-soft);
            border: 1px solid rgba(224, 122, 31, .2);
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 16px;
        }

        .section__title {
            font-size: 32px;
            line-height: 1.3;
            font-weight: 800;
            color: var(--text-strong);
            letter-spacing: -0.01em;
        }

        .section__lead {
            margin-top: 14px;
            font-size: 16px;
            color: var(--text-weak);
            max-width: 640px;
        }

        .section__head--center .section__lead {
            margin-left: auto;
            margin-right: auto;
        }

        .divider-line {
            width: 56px;
            height: 4px;
            border-radius: 4px;
            background: var(--primary);
            margin: 16px 0;
        }

        .section__head--center .divider-line {
            margin-left: auto;
            margin-right: auto;
        }

        .link-arrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-dark);
        }

        .link-arrow i {
            transition: transform var(--transition);
        }

        .link-arrow:hover i {
            transform: translateX(4px);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: 999px;
            padding: 5px 12px;
            font-size: 12px;
            font-weight: 600;
        }

        .badge--warm {
            background: var(--primary-soft);
            color: var(--primary-dark);
        }

        .badge--green {
            background: var(--secondary-soft);
            color: var(--secondary);
        }

        .float-cta {
            position: fixed;
            right: 28px;
            bottom: 30px;
            z-index: 80;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(140deg, #F6A64B, #D97318);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            box-shadow: 0 10px 28px rgba(224, 122, 31, .35);
            opacity: 0;
            pointer-events: none;
            transform: translateY(16px);
            transition: all var(--transition);
            border: none;
            cursor: pointer;
        }

        .float-cta.is-show {
            opacity: 1;
            pointer-events: auto;
            transform: translateY(0);
        }

        .float-cta:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 34px rgba(224, 122, 31, .42);
        }

        .float-cta span {
            position: absolute;
            right: 60px;
            background: #262018;
            color: #fff;
            font-size: 12px;
            padding: 4px 10px;
            border-radius: 8px;
            white-space: nowrap;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition);
        }

        .float-cta:hover span {
            opacity: 1;
        }

        /* ---------- Hero ---------- */
        .hero {
            background: var(--hero-grad);
            border-bottom: 1px solid var(--border);
            padding: 72px 0 80px;
            overflow: hidden;
            position: relative;
        }

        .hero::before {
            content: "";
            position: absolute;
            right: -120px;
            top: -150px;
            width: 460px;
            height: 460px;
            background: rgba(224, 122, 31, .07);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .hero__content {
            position: relative;
            z-index: 2;
        }

        .hero__mark {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .8);
            color: var(--primary-dark);
            border: 1px solid rgba(224, 122, 31, .18);
            font-weight: 600;
            font-size: 13px;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 24px;
            box-shadow: var(--shadow-card);
        }

        .hero__mark i {
            color: var(--primary);
        }

        .hero h1 {
            font-size: 42px;
            line-height: 1.28;
            font-weight: 800;
            color: var(--text-strong);
            letter-spacing: -0.02em;
            margin-bottom: 20px;
        }

        .hero h1 .hl {
            color: var(--primary-dark);
            position: relative;
            white-space: nowrap;
        }

        .hero h1 .hl::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 4px;
            width: 100%;
            height: 10px;
            background: rgba(224, 122, 31, .14);
            border-radius: 4px;
            z-index: -1;
        }

        .hero__desc {
            font-size: 17px;
            color: #4A4A42;
            margin-bottom: 34px;
            max-width: 520px;
        }

        .hero__btns {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 44px;
        }

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

        .stat-pill {
            display: flex;
            flex-direction: column;
            background: rgba(255, 255, 255, .72);
            border: 1px solid rgba(255, 255, 255, .9);
            border-radius: var(--radius-md);
            padding: 14px 18px;
            min-width: 118px;
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(4px);
        }

        .stat-pill__num {
            font-family: var(--font-num);
            font-size: 26px;
            font-weight: 800;
            color: var(--primary-dark);
            line-height: 1.2;
        }

        .stat-pill__label {
            font-size: 12px;
            color: var(--text-weak);
            margin-top: 4px;
            line-height: 1.4;
        }

        .hero__visual {
            position: relative;
            z-index: 2;
        }

        .hero-photo {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 24px 60px rgba(30, 20, 5, .16);
            border: 6px solid rgba(255, 255, 255, .8);
        }

        .hero-photo img {
            width: 100%;
            object-fit: cover;
            aspect-ratio: 5/4;
        }

        .hero-card-float {
            position: absolute;
            left: -22px;
            bottom: 26px;
            background: #fff;
            border-radius: 16px;
            box-shadow: var(--shadow-hover);
            padding: 14px 18px;
            display: flex;
            align-items: center;
            gap: 12px;
            border: 1px solid var(--border);
        }

        .hero-card-float__icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--secondary-soft);
            color: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
        }

        .hero-card-float__text {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.4;
        }

        .hero-card-float__text strong {
            display: block;
            color: var(--text-strong);
            font-size: 15px;
            margin-bottom: 1px;
        }

        /* ---------- Feature cards ---------- */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            padding: 28px 24px;
            position: relative;
            transition: transform .25s var(--transition), box-shadow .25s var(--transition);
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .feature-card__tag {
            position: absolute;
            top: 18px;
            right: 18px;
            font-size: 11px;
            font-weight: 600;
            border-radius: 999px;
            padding: 3px 10px;
            background: var(--secondary-soft);
            color: var(--secondary);
        }

        .feature-card__icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 21px;
            margin-bottom: 18px;
        }

        .icon-warm {
            background: var(--primary-soft);
            color: var(--primary-dark);
        }

        .icon-green {
            background: var(--secondary-soft);
            color: var(--secondary);
        }

        .icon-gray {
            background: #F0EFEA;
            color: #5C5B55;
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 8px;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
        }

        /* ---------- How-block ---------- */
        .how-grid {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .how-steps {
            list-style: none;
            counter-reset: step;
        }

        .how-steps li {
            position: relative;
            padding-left: 72px;
            margin-bottom: 34px;
            counter-increment: step;
        }

        .how-steps li::before {
            content: counter(step, decimal-leading-zero);
            position: absolute;
            left: 0;
            top: -4px;
            font-family: var(--font-num);
            font-size: 13px;
            font-weight: 700;
            color: var(--primary-dark);
            background: var(--primary-soft);
            border: 1px solid rgba(224, 122, 31, .2);
            width: 44px;
            height: 44px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .how-steps h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 6px;
        }

        .how-steps p {
            font-size: 14px;
            color: var(--text-weak);
        }

        .how-visual {
            position: relative;
        }

        .how-visual .main-img {
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
        }

        .how-visual .main-img img {
            aspect-ratio: 4/3;
            object-fit: cover;
            width: 100%;
        }

        .how-mini-stat {
            display: flex;
            gap: 16px;
            margin-top: 20px;
        }

        .mini-stat {
            flex: 1;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px;
            text-align: center;
            box-shadow: var(--shadow-card);
        }

        .mini-stat strong {
            display: block;
            font-size: 24px;
            color: var(--secondary);
            font-family: var(--font-num);
            line-height: 1.2;
        }

        .mini-stat span {
            font-size: 12px;
            color: var(--text-weak);
        }

        .compare-list {
            list-style: none;
            margin-top: 0;
        }

        .compare-list li {
            display: flex;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px dashed var(--border);
            font-size: 15px;
            color: var(--text-body);
            align-items: flex-start;
        }

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

        .compare-list i {
            color: var(--primary);
            margin-top: 5px;
            font-size: 14px;
        }

        .compare-list strong {
            color: var(--text-strong);
        }

        /* ---------- Trust ---------- */
        .trust-wrap {
            background: #262018;
            border-radius: var(--radius-lg);
            padding: 56px 60px;
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 48px;
            align-items: center;
            color: #FFF;
            position: relative;
            overflow: hidden;
        }

        .trust-wrap::after {
            content: "";
            position: absolute;
            right: -90px;
            bottom: -90px;
            width: 260px;
            height: 260px;
            background: rgba(224, 122, 31, .15);
            border-radius: 50%;
        }

        .trust-copy h2 {
            font-size: 28px;
            font-weight: 800;
            line-height: 1.35;
            margin-bottom: 14px;
            color: #FFF8EF;
        }

        .trust-copy>p {
            color: rgba(255, 248, 239, .72);
            font-size: 15px;
            max-width: 480px;
        }

        .trust-metrics {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .trust-metric {
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: 16px;
            padding: 20px;
        }

        .trust-metric strong {
            display: block;
            font-size: 30px;
            font-family: var(--font-num);
            color: #FFB370;
            line-height: 1.2;
        }

        .trust-metric span {
            font-size: 13px;
            color: rgba(255, 255, 255, .68);
        }

        /* ---------- Plans ---------- */
        .plan-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: stretch;
        }

        .plan-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 24px;
            box-shadow: var(--shadow-card);
            padding: 34px 30px;
            display: flex;
            flex-direction: column;
            position: relative;
        }

        .plan-card--center {
            border: 2px solid var(--primary);
            box-shadow: 0 24px 60px rgba(224, 122, 31, .15);
            transform: scale(1.02);
            z-index: 2;
        }

        .plan-card--center .plan-card__flag {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--primary);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 999px;
            white-space: nowrap;
            box-shadow: 0 4px 12px rgba(224, 122, 31, .3);
        }

        .plan-card__name {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 6px;
        }

        .plan-card__desc {
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 20px;
            min-height: 38px;
        }

        .plan-card__price {
            display: flex;
            align-items: baseline;
            gap: 6px;
            font-size: 16px;
            color: var(--text-weak);
            margin-bottom: 24px;
        }

        .plan-card__price strong {
            font-size: 42px;
            color: var(--text-strong);
            font-family: var(--font-num);
            letter-spacing: -0.03em;
        }

        .plan-card--center .plan-card__price strong {
            color: var(--primary-dark);
        }

        .plan-card__list {
            list-style: none;
            margin-bottom: 36px;
            flex: 1;
        }

        .plan-card__list li {
            padding: 8px 0;
            border-bottom: 1px dashed var(--border);
            display: flex;
            gap: 10px;
            font-size: 14px;
            color: var(--text-body);
        }

        .plan-card__list li i {
            color: var(--secondary);
            margin-top: 4px;
            font-size: 13px;
        }

        .plan-card .btn {
            width: 100%;
        }

        /* ---------- News / CMS ---------- */
        .news-grid {
            margin-top: 40px;
        }

        .news-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition), box-shadow var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .news-card__media {
            height: 150px;
            overflow: hidden;
            background: var(--bg-deep);
        }

        .news-card__media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .news-card:hover .news-card__media img {
            transform: scale(1.04);
        }

        .news-card__body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-card__meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 12px;
            color: var(--text-weak);
            margin-bottom: 10px;
        }

        .news-card__tag {
            background: var(--primary-soft);
            color: var(--primary-dark);
            font-weight: 600;
            padding: 2px 9px;
            border-radius: 6px;
            font-size: 12px;
        }

        .news-card__title {
            font-size: 17px;
            line-height: 1.45;
            font-weight: 700;
            color: var(--text-strong);
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            margin-bottom: 10px;
        }

        .news-card__summary {
            font-size: 14px;
            line-height: 1.65;
            color: var(--text-weak);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            margin-bottom: 18px;
            flex: 1;
        }

        .news-card__more {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-dark);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .news-card__more i {
            font-size: 12px;
        }

        .news-empty {
            text-align: center;
            padding: 56px 20px;
            background: #fff;
            border-radius: 16px;
            border: 1px dashed var(--border-deep);
            color: var(--text-weak);
            font-size: 15px;
        }

        /* ---------- FAQ ---------- */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 0;
            margin-bottom: 16px;
        }

        .faq-item h3 {
            font-size: 17px;
            font-weight: 600;
            padding: 0;
            margin: 0;
            color: var(--text-strong);
        }

        .faq-item h3 button {
            width: 100%;
            background: transparent;
            border: none;
            padding: 20px 24px;
            font-size: 16px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 14px;
            color: var(--text-strong);
            cursor: pointer;
            font-family: var(--font-sans);
            font-weight: 600;
        }

        .faq-item h3 button .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary-dark);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            flex-shrink: 0;
            transition: transform .25s ease;
        }

        .faq-item h3 button[aria-expanded="true"] .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-content {
            padding: 0 24px 22px;
            font-size: 15px;
            color: var(--text-weak);
        }

        /* ---------- CTA Banner ---------- */
        .cta-banner {
            border-radius: 24px;
            background: linear-gradient(110deg, #D97318 0%, #E89B4A 45%, #226B58 130%);
            padding: 48px 54px;
            display: flex;
            gap: 32px;
            align-items: center;
            justify-content: space-between;
            color: #fff;
            overflow: hidden;
            position: relative;
        }

        .cta-banner::before {
            content: "";
            position: absolute;
            left: -40px;
            top: -60px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .08);
        }

        .cta-banner h2 {
            font-size: 28px;
            font-weight: 800;
            line-height: 1.4;
            color: #fff;
            margin-bottom: 10px;
        }

        .cta-banner p {
            color: rgba(255, 255, 255, .88);
            font-size: 15px;
            max-width: 560px;
        }

        /* ---------- Footer ---------- */
        .site-footer {
            background: #262018;
            color: rgba(255, 248, 239, .78);
            padding: 70px 0 36px;
            margin-top: var(--section-gap);
        }

        .site-footer .footer-topline {
            height: 3px;
            background: linear-gradient(90deg, var(--primary), transparent);
            margin-bottom: 56px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
        }

        .footer-brand .brand__text {
            color: #FFF8EF;
        }

        .footer-brand .brand__text small {
            color: rgba(255, 248, 239, .5);
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 248, 239, .58);
            margin-top: 16px;
            max-width: 320px;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 700;
            color: #FFF8EF;
            margin-bottom: 18px;
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 12px;
        }

        .footer-links a {
            font-size: 14px;
            color: rgba(255, 248, 239, .68);
            transition: all var(--transition);
        }

        .footer-links a:hover {
            color: #FFB370;
            padding-left: 4px;
        }

        .footer-contact p {
            font-size: 14px;
            color: rgba(255, 248, 239, .68);
            margin-bottom: 10px;
            display: flex;
            gap: 8px;
            align-items: center;
        }

        .footer-contact i {
            color: #FFB370;
        }

        .footer-social {
            display: flex;
            gap: 10px;
            margin-top: 20px;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(255, 255, 255, .06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: rgba(255, 248, 239, .78);
        }

        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            margin-top: 48px;
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255, 248, 239, .4);
        }

        .footer-bottom a {
            color: rgba(255, 248, 239, .5);
        }

        /* ---------- Responsive ---------- */
        @media screen and (max-width: 1024px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

            .header-search {
                display: none;
            }

            .trust-wrap {
                grid-template-columns: 1fr;
                padding: 44px;
            }
        }

        @media screen and (max-width: 820px) {
            :root {
                --section-gap: 64px;
            }

            .hero {
                padding: 48px 0;
            }

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

            .hero h1 {
                font-size: 34px;
            }

            .how-grid {
                grid-template-columns: 1fr;
                gap: 42px;
            }

            .plan-grid {
                grid-template-columns: 1fr;
                max-width: 480px;
                margin-left: auto;
                margin-right: auto;
            }

            .plan-card--center {
                transform: none;
            }

            .cta-banner {
                flex-direction: column;
                align-items: flex-start;
                padding: 36px 30px;
            }

            .main-nav {
                display: none;
            }

            .header-actions .header-search {
                display: none;
            }

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

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

        @media screen and (max-width: 640px) {
            .section__title {
                font-size: 26px;
            }

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

            .hero h1 {
                font-size: 30px;
            }

            .hero__badges {
                flex-direction: column;
            }

            .stat-pill {
                min-width: auto;
                flex-direction: row;
                align-items: center;
                gap: 12px;
            }

            .stat-pill__num {
                font-size: 22px;
            }

            .trust-metrics {
                grid-template-columns: 1fr;
            }

            .how-mini-stat {
                flex-direction: column;
            }

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .brand__text {
                font-size: 17px;
            }

            .header-bar {
                height: 64px;
            }

            .header-actions .btn {
                padding: 9px 16px;
                font-size: 13px;
            }

            .float-cta {
                right: 16px;
                bottom: 16px;
                width: 48px;
                height: 48px;
                font-size: 18px;
            }

            .news-card__media {
                height: 190px;
            }

            .cta-banner h2 {
                font-size: 23px;
            }

            .site-footer {
                padding-top: 50px;
            }
        }

/* roulang page: article */
:root {
  --primary: #D97318;
  --primary-dark: #B95E0E;
  --primary-deep: #95430A;
  --primary-soft: #FCEAD8;
  --accent: #1F6F5C;
  --accent-soft: #DCEBE5;
  --bg: #F7F4EE;
  --card: #FFFFFF;
  --ink: #1E2019;
  --text: #2C2B2A;
  --muted: #7A7A70;
  --line: #E6E0D3;
  --line-soft: #F1ECDF;
  --radius-lg: 26px;
  --radius-md: 18px;
  --radius-sm: 10px;
  --shadow: 0 4px 18px rgba(30, 20, 5, 0.06);
  --shadow-hover: 0 12px 30px rgba(30, 20, 5, 0.11);
  --space: 96px;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "微软雅黑", sans-serif;
  --number-font: "Inter", "DIN Alternate", "Roboto", ui-monospace, monospace;
}

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

html,
body {
  padding: 0;
  margin: 0;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.65;
}

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

a {
  color: var(--text);
  transition: color 0.18s ease;
}

a:not(.btn):hover {
  color: var(--primary);
}

button,
input {
  font-family: inherit;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font);
  color: var(--ink);
  font-weight: 700;
  line-height: 1.3;
}

.o-container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* ---------- header / nav ---------- */
.site-header {
  background: #FFFCF7;
  border-bottom: 1px solid var(--line-soft);
  box-shadow: 0 1px 10px rgba(30, 20, 5, 0.04);
  position: sticky;
  top: 0;
  z-index: 99;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  min-height: 76px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
}

.brand__icon {
  width: 40px;
  height: 40px;
  border-radius: 13px;
  background: linear-gradient(135deg, var(--primary) 0%, #F0A354 100%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  box-shadow: 0 6px 14px rgba(217, 115, 24, 0.28);
  flex-shrink: 0;
}

.brand__text {
  font-size: 20px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.brand__text small {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--muted);
  margin-top: 3px;
  letter-spacing: 0.14em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.main-nav a {
  display: inline-flex;
  align-items: center;
  padding: 10px 16px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 500;
  font-size: 15px;
  color: var(--text);
  transition: all 0.18s ease;
}

.main-nav a:hover {
  background: var(--primary-soft);
  color: var(--primary);
}

.main-nav a.is-active {
  background: var(--primary);
  color: #fff;
}

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

.header-search {
  background: #FBF8F1;
  border: 1px solid var(--line);
  border-radius: 999px;
  display: flex;
  align-items: center;
  padding: 5px 8px 5px 15px;
  gap: 8px;
}

.header-search i {
  color: var(--muted);
  font-size: 14px;
}

.header-search input {
  border: none;
  outline: none;
  background: transparent;
  font-size: 13px;
  width: 132px;
  color: var(--text);
}

.header-search input::placeholder {
  color: #B3AEA1;
}

.nav-toggle {
  background: none;
  border: 1px solid var(--line);
  border-radius: 10px;
  width: 42px;
  height: 42px;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 19px;
  color: var(--primary);
  cursor: pointer;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.4;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.12s ease, background 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.btn .icon,
.btn i {
  font-size: 0.9em;
}

.btn--primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 20px rgba(217, 115, 24, 0.22);
}

.btn--primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  color: #fff;
  box-shadow: 0 12px 26px rgba(217, 115, 24, 0.28);
}

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

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

.btn--secondary {
  background: #fff;
  border-color: var(--line);
  color: var(--ink);
}

.btn--secondary:hover {
  background: var(--primary-soft);
  border-color: var(--primary);
  color: var(--primary);
}

.btn--ghost {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.6);
  color: #fff;
}

/* ---------- page hero ---------- */
.article-hero {
  margin-top: 28px;
  position: relative;
}

.article-hero .bg-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 420px;
  background-image: url("/assets/images/backpic/back-2.png");
  background-size: cover;
  background-position: center;
  position: relative;
  display: flex;
  align-items: center;
}

.article-hero .bg-wrap::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(246, 240, 228, 0.98) 4%, rgba(247, 240, 227, 0.86) 58%, rgba(255, 246, 230, 0.42) 100%);
}

.article-hero .hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 64px 56px 54px;
}

.crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 22px;
}

.crumb a {
  color: var(--muted);
  text-decoration: none;
  padding: 3px 0;
}

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

.crumb i {
  font-size: 12px;
  color: #C0BBAF;
}

.crumb .current {
  color: var(--primary);
  font-weight: 600;
  max-width: 240px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tag-live {
  background: rgba(217, 115, 24, 0.12);
  border: 1px solid rgba(217, 115, 24, 0.3);
  color: var(--primary-dark);
  border-radius: 999px;
  display: inline-flex;
  padding: 4px 13px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 18px;
  align-items: center;
  gap: 6px;
}

.article-hero h1 {
  font-size: 42px;
  max-width: 920px;
  margin: 0 0 18px;
  letter-spacing: -0.01em;
}

.article-hero .lead {
  font-size: 17px;
  color: #4F4C45;
  max-width: 800px;
  margin: 0 0 28px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 20px;
  font-size: 14px;
  color: var(--muted);
}

.hero-meta .dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--primary);
  display: inline-block;
  margin-right: 8px;
  vertical-align: middle;
}

.hero-meta .publisher {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.publisher .avat {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary-dark);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
}

/* ---------- article main ---------- */
.article-main {
  max-width: 860px;
  margin: 0 auto;
}

.article-layout {
  padding: 70px 0 0;
}

.article-content {
  background: #fff;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 6vw, 76px);
  box-shadow: var(--shadow);
}

.article-cover {
  border-radius: 20px;
  overflow: hidden;
  margin-bottom: 44px;
  border: 1px solid var(--line-soft);
}

.article-cover img {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
}

.article-body {
  font-size: 17px;
  line-height: 1.85;
  color: var(--text);
}

.article-body p {
  margin-bottom: 1.6em;
}

.article-body h2 {
  font-size: 27px;
  margin: 2em 0 0.8em;
  padding-left: 16px;
  border-left: 5px solid var(--primary);
}

.article-body h3 {
  font-size: 22px;
  margin: 1.8em 0 0.7em;
  color: var(--ink);
}

.article-body ul {
  list-style: none;
  margin: 0 0 1.8em;
  padding: 0;
}

.article-body ul li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 11px;
}

.article-body ul li::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 0.68em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0.85;
}

.article-body ol {
  list-style: decimal;
  padding-left: 26px;
  margin-bottom: 1.8em;
}

.article-body ol li {
  margin-bottom: 10px;
  padding-left: 5px;
}

.article-body img {
  border-radius: 16px;
  border: 1px solid var(--line-soft);
  margin: 24px 0;
}

.article-body blockquote {
  margin: 28px 0;
  padding: 4px 0 4px 24px;
  border-left: 4px solid var(--primary);
  background: #FBF7F0;
  border-radius: 0 16px 16px 0;
}

.article-body blockquote p {
  margin-bottom: 0;
  color: #4F4C45;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  border-radius: 14px;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  margin: 28px 0;
  display: block;
  overflow-x: auto;
}

.article-body table th,
.article-body table td {
  border-bottom: 1px solid var(--line-soft);
  padding: 12px 14px;
  text-align: left;
  font-size: 15px;
}

.article-body table tr:last-child td {
  border-bottom: none;
}

.article-body table th {
  background: #F7F1E6;
}

.article-body code {
  background: #F3F0EA;
  border-radius: 7px;
  padding: 2px 7px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 14px;
  color: var(--ink);
}

.article-body pre {
  background: #F6F2EA;
  border-radius: 18px;
  padding: 18px 22px;
  overflow-x: auto;
  border: 1px solid var(--line);
  margin: 26px 0;
}

/* not found */
.not-found {
  text-align: center;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 90px 24px;
  border: 1px solid var(--line-soft);
  box-shadow: var(--shadow);
}

.not-found .found-icon {
  width: 92px;
  height: 92px;
  background: var(--primary-soft);
  color: var(--primary);
  border-radius: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 26px;
  font-size: 38px;
}

.not-found h2 {
  font-size: 31px;
  margin: 0 0 14px;
}

.not-found p {
  color: var(--muted);
  max-width: 420px;
  margin: 0 auto 34px;
}

/* ---------- related / cta ---------- */
.related-section {
  background: #fff;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  margin-top: 64px;
  padding: 40px clamp(24px, 5vw, 60px);
  box-shadow: var(--shadow);
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 26px;
}

.section-head .label-line {
  font-size: 14px;
  color: var(--primary);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 7px;
}

.section-head .label-line i {
  color: var(--primary);
}

.section-head .line {
  height: 1px;
  flex: 1;
  background: repeating-linear-gradient(90deg, var(--line) 0 6px, transparent 6px 12px);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.related-card {
  background: #FAF6EF;
  border: 1px solid var(--line);
  border-radius: 17px;
  overflow: hidden;
  color: var(--text);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

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

.related-card__img {
  height: 140px;
  width: 100%;
  object-fit: cover;
  background: var(--line-soft);
}

.related-card__body {
  padding: 20px 20px 24px;
}

.related-card__body .kicker {
  font-size: 12px;
  width: fit-content;
  border-radius: 999px;
  padding: 2px 10px;
  margin-bottom: 12px;
  font-weight: 500;
  background: var(--primary-soft);
  color: var(--primary-deep);
  display: block;
}

.related-card__body h3 {
  font-size: 18px;
  line-height: 1.4;
  margin: 0 0 10px;
}

.related-card__body p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* prev next */
.article-direct {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 28px;
}

.direct-link {
  background: #FAF6EF;
  border: 1px solid var(--line);
  border-radius: 16px;
  text-decoration: none;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: background 0.18s ease, border-color 0.18s ease;
}

.direct-link:hover {
  background: var(--primary-soft);
  border-color: var(--primary);
  color: var(--ink);
}

.direct-link i {
  font-size: 18px;
  color: var(--primary);
}

.direct-link .direct-desc {
  font-size: 13px;
  color: var(--muted);
}

.direct-link .direct-title {
  font-weight: 600;
  color: var(--ink);
}

/* cta banner */
.cta-banner {
  margin: 90px auto 0;
  background: linear-gradient(120deg, #E57E22 0%, #E2953F 55%, #227463 130%);
  border-radius: var(--radius-lg);
  padding: clamp(26px, 5vw, 56px);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  box-shadow: 0 16px 42px rgba(31, 111, 92, 0.2);
}

.cta-banner h3 {
  color: #fff;
  margin: 0 0 8px;
  font-size: 26px;
}

.cta-banner p {
  color: rgba(255,255,255,0.9);
  margin: 0;
  max-width: 560px;
}

.cta-btn {
  background: #fff;
  color: var(--primary-deep);
  border-radius: 12px;
  font-weight: 700;
}

.cta-btn:hover {
  background: #FFEED9;
  color: var(--primary-deep);
  transform: translateY(-2px);
}

/* ---------- footer ---------- */
.site-footer {
  margin-top: 90px;
  background: #262018;
  color: #D8D0C4;
}

.footer-topline {
  height: 4px;
  background: linear-gradient(90deg, var(--primary) 0%, #F0A354 40%, var(--accent) 120%);
}

.site-footer .o-container {
  padding-top: 52px;
  padding-bottom: 46px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.6fr;
  gap: 36px;
}

.footer-brand .brand {
  margin-bottom: 16px;
}

.footer-brand .brand__icon {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  font-size: 16px;
}

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

.footer-brand .brand__text small {
  color: #A5A095;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: #B6AFA3;
  max-width: 300px;
  margin: 0;
}

.footer-title {
  color: #fff;
  font-weight: 600;
  margin-bottom: 18px;
  padding-bottom: 12px;
  position: relative;
  font-size: 16px;
}

.footer-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: var(--primary);
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: #C9C0B3;
  text-decoration: none;
  font-size: 14px;
  display: inline-block;
  transition: color 0.16s ease, margin-left 0.16s ease;
}

.footer-links a:hover {
  color: #FFC487;
  margin-left: 3px;
}

.footer-contact p {
  margin-bottom: 10px;
  font-size: 14px;
  color: #B6AFA3;
  display: flex;
  gap: 9px;
  align-items: center;
}

.footer-contact i {
  color: var(--primary);
  width: 16px;
  text-align: center;
}

.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.footer-social a {
  width: 38px;
  height: 38px;
  background: rgba(255,255,255,0.08);
  border-radius: 12px;
  color: #E0D7C9;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-size: 15px;
  transition: all 0.16s ease;
}

.footer-social a:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}

.footer-bottom {
  margin-top: 44px;
  padding-top: 20px;
  border-top: 1px solid #3B332C;
  font-size: 13px;
  color: #8F897F;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
}

.footer-bottom a {
  color: #B6AFA3;
  text-decoration: none;
}

.footer-bottom a:hover {
  color: #FFB46B;
}

/* ---------- responsive ---------- */
@media screen and (max-width: 1024px) {
  .header-actions {
    display: none;
  }

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

  .main-nav {
    display: block;
    position: fixed;
    top: 72px;
    left: 16px;
    right: 16px;
    background: #FFFCF7;
    border: 1px solid var(--line);
    border-radius: 20px;
    box-shadow: var(--shadow-hover);
    padding: 12px;
    opacity: 0;
    transform: translateY(-10px);
    pointer-events: none;
    transition: all 0.2s ease;
    max-height: calc(100vh - 110px);
    overflow-y: auto;
    z-index: 99;
  }

  .main-nav.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .main-nav a {
    display: block;
    width: 100%;
    border-radius: 12px;
    margin: 3px 0;
  }

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

  .article-hero h1 {
    font-size: 36px;
  }

  .article-cover img {
    max-height: 360px;
  }

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

@media screen and (max-width: 640px) {
  .header-inner {
    min-height: 64px;
  }

  .brand__text {
    font-size: 17px;
  }

  .brand__text small {
    display: none;
  }

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

  .article-hero .hero-content {
    padding: 34px 24px 30px;
  }

  .article-hero h1 {
    font-size: 31px;
  }

  .article-hero .lead {
    font-size: 16px;
  }

  .crumb .current {
    max-width: 120px;
  }

  .related-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .related-card__img {
    height: 150px;
  }

  .article-direct {
    grid-template-columns: 1fr;
  }

  .cta-banner {
    flex-direction: column;
    align-items: flex-start;
  }

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

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

  .article-content {
    padding: 24px 20px;
  }
}

/* roulang page: category3 */
:root {
            --primary: #D97318;
            --primary-deep: #B4560D;
            --primary-soft: #FCEEDD;
            --secondary: #1F6F5C;
            --secondary-deep: #155647;
            --secondary-soft: #E4F1EC;
            --bg-body: #F7F4EE;
            --bg-white: #FFFFFF;
            --bg-warm: #FBFAF6;
            --text-title: #1E2019;
            --text-body: #2C2B2A;
            --text-muted: #7A7A70;
            --line-border: #E6E0D3;
            --line-card: #EBE4D8;
            --shadow-sm: 0 4px 16px rgba(30,20,5,.06);
            --shadow-hv: 0 12px 36px rgba(30,20,5,.12);
            --radius-card: 20px;
            --radius-btn: 10px;
            --radius-soft: 14px;
            --trans: cubic-bezier(.2,0,0,1) .35s;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--trans);
        }

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

        h1,
        h2,
        h3,
        h4 {
            color: var(--text-title);
            line-height: 1.35;
            font-weight: 700;
        }

        .o-container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
            width: 100%;
        }

        .sec-space {
            padding: 92px 0;
        }

        .sec-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary-soft);
            color: var(--primary-deep);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .03em;
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 16px;
        }

        .sec-tag .dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--primary);
        }

        .sec-title {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .sec-desc {
            color: var(--text-muted);
            font-size: 16px;
            max-width: 780px;
            margin-bottom: 34px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            background: rgba(255,255,255,.96);
            border-bottom: 1px solid var(--line-border);
            position: sticky;
            top: 0;
            z-index: 60;
            box-shadow: 0 2px 14px rgba(30,20,5,.03);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 76px;
            gap: 24px;
        }

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

        .brand__icon {
            width: 42px;
            height: 42px;
            border-radius: 13px;
            background: linear-gradient(135deg, var(--primary), var(--primary-deep));
            color: #fff;
            font-size: 19px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 6px 14px rgba(217,115,24,.28);
        }

        .brand__text {
            display: flex;
            flex-direction: column;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-title);
            line-height: 1.25;
            letter-spacing: .01em;
        }

        .brand__text small {
            font-size: 11px;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: .08em;
        }

        .nav-toggle {
            display: none;
            background: var(--bg-warm);
            border: 1px solid var(--line-card);
            width: 42px;
            height: 42px;
            border-radius: 10px;
            font-size: 17px;
            color: var(--text-title);
            cursor: pointer;
		    align-items:center;
		    justify-content:center;
        }

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

        .main-nav a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 15px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            position: relative;
        }

        .main-nav a:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .main-nav a:focus-visible {
            outline: 2px solid rgba(217,115,24,.55);
            outline-offset: 2px;
        }

        .main-nav a.is-active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(217,115,24,.24);
        }

        /* ===== Breadcrumb ===== */
        .crumb-band {
            padding: 20px 0 0;
        }

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

        .breadcrumb a {
            color: var(--text-muted);
        }

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

        .breadcrumb .sep {
            color: #BAB5A8;
        }

        .breadcrumb .is-current {
            color: var(--primary);
            font-weight: 600;
        }

        /* ===== Category Hero ===== */
        .cat-hero {
            padding: 48px 0 28px;
        }

        .cat-hero .grid-x {
            align-items: center;
        }

        .cat-hero__copy {
            padding-right: 28px;
        }

        .cat-hero h1 {
            font-size: 42px;
            font-weight: 900;
            margin-bottom: 18px;
            letter-spacing: .01em;
        }

        .cat-hero h1 em {
            font-style: normal;
            color: var(--primary);
        }

        .cat-hero__desc {
            color: var(--text-body);
            font-size: 16px;
            line-height: 1.9;
            max-width: 610px;
        }

        .cat-hero__badges {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 24px;
        }

        .mini-badge {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: var(--bg-white);
            border: 1px solid var(--line-card);
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 13px;
            color: var(--secondary-deep);
            font-weight: 600;
            box-shadow: var(--shadow-sm);
        }

        .mini-badge i {
            color: var(--primary);
        }

        .cat-hero__img {
            border-radius: 24px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--line-card);
            background: var(--bg-white);
            line-height: 0;
        }

        .cat-hero__img img {
            width: 100%;
            height: 320px;
            object-fit: cover;
        }

        /* ===== Data Strip ===== */
        .shield-strip {
            margin-top: 28px;
            background: var(--secondary-deep);
            border-radius: 24px;
            color: #fff;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }

        .shield-item {
            padding: 26px 28px;
            border-left: 1px solid rgba(255,255,255,.16);
        }

        .shield-item:first-child {
            border-left: 0;
        }

        .shield-item .shield-num {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            line-height: 1.4;
            font-family: 'Inter', 'PingFang SC', sans-serif;
        }

        .shield-item .shield-label {
            color: rgba(255,255,255,.78);
            font-size: 13px;
            margin-top: 4px;
        }

        .shield-item i {
            color: #FFC88A;
            margin-right: 8px;
        }

        /* ===== Feature cards ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--bg-white);
            border: 1px solid var(--line-card);
            border-radius: var(--radius-card);
            padding: 28px 26px;
            box-shadow: var(--shadow-sm);
            transition: transform var(--trans), box-shadow var(--trans);
            position: relative;
            overflow: hidden;
        }

        .feature-card::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            opacity: 0;
            transition: opacity var(--trans);
        }

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

        .feature-card:hover::after {
            opacity: 1;
        }

        .feature-card .icon-box {
            width: 50px;
            height: 50px;
            border-radius: 14px;
            background: var(--primary-soft);
            color: var(--primary-deep);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 21px;
            margin-bottom: 18px;
        }

        .feature-card .icon-box.green {
            background: var(--secondary-soft);
            color: var(--secondary-deep);
        }

        .feature-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .feature-card p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.8;
        }

        /* ===== Flow section ===== */
        .flow-wrap {
            background: var(--bg-warm);
            border-top: 1px solid var(--line-border);
            border-bottom: 1px solid var(--line-border);
        }

        .flow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .step-card {
            background: var(--bg-white);
            border: 1px solid var(--line-card);
            border-radius: 18px;
            padding: 24px 22px;
            position: relative;
            box-shadow: var(--shadow-sm);
        }

        .step-card .step-no {
            position: absolute;
            top: -14px;
            left: 20px;
            width: 30px;
            height: 30px;
            border-radius: 10px;
            background: var(--secondary);
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 10px rgba(31,111,92,.3);
        }

        .step-card h3 {
            font-size: 17px;
            margin: 14px 0 8px;
        }

        .step-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .flow-media {
            margin-top: 40px;
            display:grid;
            grid-template-columns: 1.1fr .9fr;
            gap: 26px;
            align-items: stretch;
        }

        .media-img {
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--line-card);
            line-height: 0;
        }

        .media-img img {
            width: 100%;
            height: 300px;
            object-fit: cover;
        }

        .flow-media__list {
            background: var(--bg-white);
            border: 1px solid var(--line-card);
            border-radius: 20px;
            padding: 26px 28px;
            box-shadow: var(--shadow-sm);
        }

        .flow-media__list h3 {
            font-size: 20px;
            border-left: 5px solid var(--primary);
            padding-left: 14px;
            line-height: 1.4;
        }

        .flow-media__list ul {
            list-style: none;
            margin-top: 18px;
        }

        .flow-media__list li {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding: 9px 0;
            font-size: 14px;
            color: var(--text-body);
            border-bottom: 1px dashed #EDE8DE;
        }
        .flow-media__list li:last-child{border-bottom:0;}
        .flow-media__list li i {
            color: var(--secondary);
            margin-top: 5px;
        }

        /* ===== Scene cards ===== */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(2,1fr);
            gap: 24px;
        }

        .scene-card {
            background: var(--bg-white);
            border: 1px solid var(--line-card);
            border-radius: 20px;
            padding: 28px;
            display: flex;
            gap: 20px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--trans);
        }

        .scene-card:hover {
            box-shadow: var(--shadow-hv);
        }

        .scene-icon {
            width: 56px;
            height: 56px;
            border-radius: 15px;
            flex-shrink: 0;
            background: linear-gradient(135deg, var(--primary-soft), #F9E4C8);
            color: var(--primary-deep);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
        }

        .scene-card h3 {
            font-size: 18px;
            margin-bottom: 8px;
        }

        .scene-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 10px;
        }

        .scene-card .suggest {
            background: var(--secondary-soft);
            color: var(--secondary-deep);
            padding: 8px 14px;
            border-radius: 10px;
            font-size: 13px;
            display: inline-flex;
            gap: 7px;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            background: var(--bg-white);
            border-top: 1px solid var(--line-border);
            border-bottom: 1px solid var(--line-border);
        }

        .faq-list {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-warm);
            border: 1px solid var(--line-card);
            border-radius: 16px;
            margin-bottom: 14px;
            padding: 0 10px;
            transition: border-color var(--trans);
        }

        .faq-item[open] {
            border-color: #E2B78A;
            background: #FFFDFB;
        }

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

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

        .faq-item summary i:first-child {
            color: var(--primary);
            margin-right: 8px;
        }

        .faq-item .fa-chevron-down {
            color: var(--text-muted);
            transition: transform var(--trans);
        }

        .faq-item[open] .fa-chevron-down {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-item .faq-body {
            padding: 0 22px 22px 46px;
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.9;
        }

        /* ===== CTA ===== */
        .cta-banner {
            background: linear-gradient(105deg, #CF6B12, #1F6F5C);
            border-radius: 26px;
            padding: 50px 54px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 32px;
            color: #fff;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-hv);
        }

        .cta-banner::after {
            content: "";
            position: absolute;
            right: -40px;
            top: -80px;
            width: 230px;
            height: 230px;
            border: 2px solid rgba(255,255,255,.15);
            border-radius: 50%;
        }

        .cta-banner h2 {
            color: #fff;
            font-size: 27px;
            font-weight: 800;
        }

        .cta-banner p {
            color: rgba(255,255,255,.85);
            font-size: 15px;
            margin-top: 8px;
        }

        .btn-white {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            color: var(--primary-deep);
            font-weight: 700;
            padding: 14px 30px;
            border-radius: 999px;
            transition: all var(--trans);
            box-shadow: 0 6px 18px rgba(0,0,0,.12);
            flex-shrink: 0;
        }

        .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(0,0,0,.2);
            color: var(--primary-deep);
            background: #FFF7EC;
        }

        /* ===== Button general ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            border: 1px solid var(--primary);
            color: #fff;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            transition: all var(--trans);
            cursor: pointer;
        }

        .btn-primary:hover {
            background: var(--primary-deep);
            border-color: var(--primary-deep);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(217,115,24,.25);
            color:#fff;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #262018;
            color: rgba(255,255,255,.72);
            margin-top: 0;
        }

        .footer-topline {
            height: 5px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
        }

        .site-footer .o-container {
            padding-top: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 42px;
        }

        .footer-brand .brand__text {
            color: #fff;
        }
        .footer-brand .brand__text small{
            color: rgba(255,255,255,.58);
        }
        .footer-brand .brand__icon{
            background: var(--primary);
            box-shadow: none;
        }
        .footer-brand p {
            font-size: 13px;
            line-height: 1.8;
            color: rgba(255,255,255,.65);
            margin-top: 16px;
            max-width: 330px;
        }

        .footer-title {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
        }

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

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: rgba(255,255,255,.66);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: color var(--trans);
        }

        .footer-links a:hover {
            color: #FFB776;
        }

        .footer-contact p {
            font-size: 13px;
            display: flex;
            gap: 9px;
            align-items: center;
            margin-bottom: 9px;
            color: rgba(255,255,255,.64);
        }

        .footer-contact i {
            color: #FFBE80;
        }

        .footer-social {
            display: flex;
            gap: 14px;
            margin-top: 18px;
        }

        .footer-social a {
            width: 34px;
            height: 34px;
            border-radius: 9px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(255,255,255,.1);
            color: rgba(255,255,255,.78);
            font-size: 14px;
        }

        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            border-top: 1px solid rgba(255,255,255,.12);
            padding: 22px 0 28px;
            font-size: 13px;
            color: rgba(255,255,255,.45);
        }

        .footer-bottom a {
            color: rgba(255,255,255,.55);
        }

        .footer-bottom a:hover {
            color: #FFC88A;
        }

        /* ===== Responsive ===== */
        @media (max-width:1024px) {
            .header-inner {
                min-height: 68px;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                background: #fff;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                padding: 16px 24px 22px;
                border-bottom: 1px solid var(--line-border);
                box-shadow: 0 16px 40px rgba(30,20,5,.08);
            }
            .main-nav.is-open {
                display: flex;
            }
            .main-nav a {
                font-size: 15px;
                justify-content: flex-start;
                padding: 12px 14px;
                border-radius: 10px;
            }
            .main-nav a.is-active {
                background: var(--primary-soft);
                color: var(--primary-deep);
                box-shadow: none;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .cat-hero h1 {
                font-size: 34px;
            }
            .shield-strip {
                grid-template-columns: repeat(2,1fr);
            }
            .shield-item {
                border-left: 0;
                border-bottom: 1px solid rgba(255,255,255,.12);
            }
            .feature-grid{
                grid-template-columns: repeat(2,1fr);
            }
            .flow-steps{
                grid-template-columns: repeat(2,1fr);
            }
            .flow-media{
                grid-template-columns: 1fr;
            }
            .footer-grid{
                grid-template-columns: repeat(2,1fr);
                gap: 32px;
            }
        }

        @media (max-width:760px) {
            .cat-hero__copy {
                padding-right: 0;
            }
            .cat-hero h1 {
                font-size: 30px;
            }
            .sec-space{
                padding: 60px 0;
            }
            .sec-title{
                font-size: 26px;
            }
            .scene-grid{
                grid-template-columns: 1fr;
            }
            .shield-strip {
                grid-template-columns: 1fr 1fr;
            }
            .cta-banner {
                flex-direction: column;
                align-items: flex-start;
                padding: 36px 30px;
            }
            .btn-white{
                width:100%;
                justify-content:center;
            }
            .footer-grid{
                grid-template-columns:1fr;
                gap:26px;
                padding-bottom:20px;
            }
            .footer-bottom{
                flex-direction: column;
                align-items:flex-start;
            }
            .flow-steps{
                grid-template-columns:1fr;
            }
            .feature-grid{
                grid-template-columns:1fr;
            }
        }

        @media (max-width:520px) {
            .o-container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .header-inner {
                gap: 8px;
            }
            .brand__text {
                font-size: 17px;
            }
            .brand__icon {
                width: 38px;
                height: 38px;
            }
            .brand__text small {
                font-size: 10px;
            }
            .cat-hero h1 {
                font-size: 26px;
                line-height:1.4;
            }
            .shield-item {
                padding: 20px;
            }
            .shield-item .shield-num {
                font-size: 22px;
            }
            .faq-item summary {
                font-size: 15px;
                padding: 16px 8px;
            }
            .footer-bottom {
                font-size:12px;
            }
        }

/* roulang page: category4 */
:root {
            --brand: #E8862B;
            --brand-dark: #C76A16;
            --brand-soft: #FDF1E5;
            --secondary: #1F6F5C;
            --secondary-soft: #E6F0EC;
            --bg-warm: #F7F4EE;
            --card-bg: #FFFFFF;
            --ink-title: #1E2019;
            --ink-body: #2C2B2A;
            --ink-muted: #7A7A70;
            --line: #E6E0D3;
            --deep: #1E3830;
            --deep-2: #274940;
            --radius-xl: 26px;
            --radius-md: 18px;
            --radius-sm: 10px;
            --shadow-sm: 0 4px 16px rgba(30, 20, 5, .06);
            --shadow-md: 0 12px 30px rgba(30, 20, 5, .10);
            --shadow-lg: 0 18px 48px rgba(30, 20, 5, .14);
            --ease: cubic-bezier(.2, 0, 0, 1);
            --transition: all .25s var(--ease);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background: var(--bg-warm);
            color: var(--ink-body);
            font-family: "Inter", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "微软雅黑", sans-serif;
            font-size: 16px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

        a {
            color: var(--ink-title);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: var(--brand-dark);
        }

        button,
        input,
        select,
        textarea {
            font: inherit;
            color: inherit;
        }

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

        input {
            outline: none;
        }

        a:focus-visible,
        button:focus-visible,
        summary:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(232, 134, 43, .32);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        .o-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 clamp(20px, 4vw, 40px);
        }

        .o-container--wide {
            max-width: 1360px;
        }

        .visually-hidden {
            position: absolute;
            width: 1px;
            height: 1px;
            overflow: hidden;
            clip: rect(0 0 0 0);
            white-space: nowrap;
        }

        .section-inner {
            padding: clamp(58px, 8vw, 96px) 0;
        }

        .section + .section {
            border-top: 1px solid rgba(230, 224, 211, .65);
        }

        .section-bg-white {
            background: #fff;
        }

        /* ===== Header ===== */
        .site-header {
            background: rgba(255, 255, 255, .96);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--line);
            position: sticky;
            top: 0;
            z-index: 80;
        }

        .header-inner {
            display: flex;
            align-items: center;
            gap: 24px;
            min-height: 78px;
            flex-wrap: wrap;
            position: relative;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            min-width: 0;
            flex-shrink: 0;
        }

        .brand__icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--brand), #F6A95A);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 19px;
            box-shadow: 0 6px 14px rgba(232, 134, 43, .28);
        }

        .brand__text {
            font-weight: 800;
            font-size: 1.05rem;
            letter-spacing: .01em;
            white-space: nowrap;
            color: var(--ink-title);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            margin: 0 auto;
        }

        .main-nav a {
            padding: 9px 14px;
            border-radius: 999px;
            font-size: .92rem;
            font-weight: 600;
            color: var(--ink-body);
            transition: var(--transition);
            white-space: nowrap;
        }

        .main-nav a:hover {
            background: var(--brand-soft);
            color: var(--brand-dark);
        }

        .main-nav a.is-active {
            background: var(--brand);
            color: #fff;
            box-shadow: 0 6px 16px rgba(232, 134, 43, .24);
        }

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

        .header-search {
            position: relative;
            display: flex;
            align-items: center;
        }

        .header-search input {
            width: 190px;
            height: 40px;
            border: 1px solid var(--line);
            border-radius: 999px;
            background: var(--bg-warm);
            padding: 0 38px 0 18px;
            font-size: .88rem;
            color: var(--ink-title);
            transition: var(--transition);
        }

        .header-search input::placeholder {
            color: var(--ink-muted);
        }

        .header-search input:focus {
            border-color: var(--brand);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(232, 134, 43, .16);
        }

        .header-search button {
            position: absolute;
            right: 4px;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            color: var(--ink-muted);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .header-search button:hover {
            color: var(--brand);
            background: var(--brand-soft);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 999px;
            font-weight: 700;
            line-height: 1;
            padding: 0 26px;
            height: 52px;
            border: 1px solid transparent;
            transition: var(--transition);
            white-space: nowrap;
            cursor: pointer;
            font-size: .96rem;
        }

        .btn:active {
            transform: translateY(1px) scale(.985);
        }

        .btn-primary {
            background: var(--brand);
            color: #fff;
            box-shadow: 0 8px 20px rgba(232, 134, 43, .26);
        }

        .btn-primary:hover {
            background: var(--brand-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 12px 26px rgba(232, 134, 43, .32);
        }

        .btn-ghost {
            background: #fff;
            border-color: var(--line);
            color: var(--ink-title);
        }

        .btn-ghost:hover {
            border-color: var(--brand);
            color: var(--brand-dark);
            background: var(--brand-soft);
            transform: translateY(-2px);
        }

        .btn-header {
            height: 40px;
            padding: 0 18px;
            font-size: .9rem;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 40px;
            border: 1px solid var(--line);
            border-radius: 12px;
            background: #fff;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
        }

        .nav-toggle__bar {
            width: 18px;
            height: 2px;
            background: var(--ink-title);
            border-radius: 4px;
            transition: var(--transition);
        }

        .nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-wrap {
            padding-top: 28px;
        }

        .breadcrumb {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            margin: 0;
            padding: 0;
            font-size: .88rem;
            color: var(--ink-muted);
        }

        .breadcrumb li {
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .breadcrumb a {
            color: var(--ink-muted);
        }

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

        .breadcrumb .sep {
            font-size: 12px;
            opacity: .7;
        }

        .breadcrumb .is-current {
            color: var(--brand-dark);
            font-weight: 600;
        }

        /* ===== Category Hero ===== */
        .page-hero {
            background:
                radial-gradient(circle at 88% 20%, rgba(232, 134, 43, .08), transparent 32%),
                radial-gradient(circle at 10% 90%, rgba(31, 111, 92, .06), transparent 26%),
                var(--bg-warm);
            padding-bottom: clamp(48px, 7vw, 84px);
            overflow: hidden;
            position: relative;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: -42px;
            width: 760px;
            height: 120px;
            transform: translateX(-50%);
            background: radial-gradient(ellipse at center, rgba(232, 134, 43, .10), transparent 68%);
            pointer-events: none;
        }

        .hero-main {
            position: relative;
            z-index: 2;
        }

        .eyebrow {
            background: var(--brand-soft);
            color: var(--brand-dark);
            font-weight: 700;
            font-size: .84rem;
            padding: 8px 14px;
            border-radius: 999px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 18px;
        }

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

        .page-hero h1 {
            font-size: clamp(2.1rem, 4vw, 3.4rem);
            line-height: 1.18;
            margin: 0 0 20px;
            font-weight: 900;
            color: var(--ink-title);
            letter-spacing: -.01em;
        }

        .hero-lead {
            font-size: 1.06rem;
            line-height: 1.85;
            color: var(--ink-body);
            max-width: 560px;
            margin: 0 0 26px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 28px;
        }

        .hero-stat-row {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .data-pill {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 16px;
            padding: 10px 18px;
            display: inline-flex;
            align-items: center;
            gap: 12px;
            box-shadow: 0 2px 8px rgba(30, 20, 5, .03);
        }

        .data-pill b {
            font-size: 1.25rem;
            color: var(--brand-dark);
            font-weight: 800;
            min-width: 44px;
            font-family: "Inter", ui-monospace, monospace;
            letter-spacing: -.02em;
        }

        .data-pill small {
            color: var(--ink-muted);
            font-size: .88rem;
            line-height: 1.3;
        }

        .hero-visual {
            position: relative;
            display: flex;
            justify-content: flex-end;
            z-index: 2;
        }

        .visual-card {
            width: min(500px, 100%);
            background: #fff;
            border-radius: var(--radius-xl);
            border: 1px solid var(--line);
            box-shadow: var(--shadow-md);
            padding: 14px;
            transform: rotate(.5deg);
        }

        .visual-card img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
            border-radius: 20px;
        }

        .visual-card__note {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 12px 12px 6px;
            color: var(--ink-muted);
            font-size: .88rem;
        }

        .visual-card__note i {
            color: var(--brand);
        }

        /* ===== Section headings ===== */
        .section-head {
            margin-bottom: 42px;
            position: relative;
            z-index: 2;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand-soft);
            color: var(--brand-dark);
            font-size: .82rem;
            font-weight: 700;
            padding: 7px 14px;
            border-radius: 999px;
            margin-bottom: 14px;
        }

        .section-tag i {
            font-size: .8rem;
        }

        .section-head h2 {
            margin: 0 0 12px;
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            font-weight: 900;
            color: var(--ink-title);
            line-height: 1.28;
            letter-spacing: -.01em;
        }

        .section-head p {
            max-width: 680px;
            color: var(--ink-muted);
            font-size: 1rem;
            line-height: 1.8;
            margin: 0;
        }

        .section-head--center {
            text-align: center;
        }

        .section-head--center p {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Topic cards ===== */
        .topic-card {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            height: 100%;
            display: flex;
            flex-direction: column;
            padding: 30px 26px 24px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

        .topic-card__icon {
            width: 52px;
            height: 52px;
            border-radius: 16px;
            background: var(--brand-soft);
            color: var(--brand-dark);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 22px;
        }

        .topic-card:nth-child(2n) .topic-card__icon {
            background: var(--secondary-soft);
            color: var(--secondary);
        }

        .topic-card h3 {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--ink-title);
            margin: 0 0 10px;
        }

        .topic-card p {
            font-size: .92rem;
            line-height: 1.75;
            color: var(--ink-muted);
            margin-bottom: 18px;
            flex: 1;
        }

        .topic-card a {
            color: var(--brand-dark);
            font-weight: 700;
            font-size: .9rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .topic-card a i {
            transition: var(--transition);
            font-size: .78rem;
        }

        .topic-card a:hover i {
            transform: translateX(4px);
        }

        /* ===== Quick steps ===== */
        .steps-wrap {
            background: #fff;
            border-top: 1px solid rgba(230, 224, 211, .65);
            border-bottom: 1px solid rgba(230, 224, 211, .65);
        }

        .step-card {
            padding: 28px 26px;
            background: var(--bg-warm);
            border-radius: var(--radius-md);
            border: 1px solid var(--line);
            height: 100%;
            transition: var(--transition);
            position: relative;
        }

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

        .step-num {
            font-size: 2rem;
            font-weight: 800;
            color: rgba(232, 134, 43, .24);
            line-height: 1;
            font-family: "Inter", ui-monospace, monospace;
            margin-bottom: 20px;
        }

        .step-card h3 {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--ink-title);
            margin: 0 0 10px;
        }

        .step-card p {
            color: var(--ink-muted);
            font-size: .93rem;
            line-height: 1.8;
            margin: 0;
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            background: var(--bg-warm);
        }

        .qa-aside {
            position: sticky;
            top: 104px;
        }

        .qa-aside__panel {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 24px;
        }

        .qa-aside__panel h3 {
            font-size: 1.1rem;
            margin: 0 0 18px;
            color: var(--ink-title);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .qa-aside__panel h3 i {
            color: var(--brand);
        }

        .anchor-list {
            display: grid;
            gap: 4px;
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .anchor-list a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 12px;
            border-radius: 12px;
            font-size: .94rem;
            font-weight: 600;
            color: var(--ink-body);
            transition: var(--transition);
        }

        .anchor-list a:hover,
        .anchor-list a.is-active {
            background: var(--brand-soft);
            color: var(--brand-dark);
        }

        .anchor-list .idx {
            font-size: .78rem;
            color: var(--ink-muted);
            font-family: "Inter", ui-monospace, monospace;
        }

        .qa-group {
            margin-top: 32px;
        }

        .qa-group:first-child {
            margin-top: 0;
        }

        .qa-group__title {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }

        .qa-group__title .gicon {
            width: 40px;
            height: 40px;
            border-radius: 14px;
            background: var(--secondary-soft);
            color: var(--secondary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
        }

        .qa-group__title h3 {
            font-size: 1.2rem;
            font-weight: 800;
            margin: 0;
            color: var(--ink-title);
        }

        .qa-group__title small {
            color: var(--ink-muted);
            margin-left: 4px;
            font-size: .9rem;
            font-weight: 400;
        }

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

        .qa-item {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }

        .qa-item:hover {
            border-color: #e8c8a4;
            box-shadow: var(--shadow-sm);
        }

        .qa-item summary {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 20px 22px;
            cursor: pointer;
            list-style: none;
            position: relative;
        }

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

        .qa-item summary::-moz-list-bullet {
            list-style: none;
        }

        .qa-summary-icon {
            width: 38px;
            height: 38px;
            flex-shrink: 0;
            border-radius: 12px;
            background: var(--bg-warm);
            color: var(--brand-dark);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
        }

        .qa-summary-text {
            flex: 1;
            font-weight: 700;
            font-size: .98rem;
            color: var(--ink-title);
            line-height: 1.5;
        }

        .qa-indicator {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            border-radius: 50%;
            background: var(--bg-warm);
            color: var(--ink-muted);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
            font-size: .8rem;
        }

        .qa-item[open] .qa-indicator {
            transform: rotate(180deg);
            background: var(--brand);
            color: #fff;
        }

        .qa-item[open] summary {
            border-bottom: 1px solid var(--line);
        }

        .qa-answer {
            padding: 20px 24px 22px 76px;
            color: var(--ink-muted);
            font-size: .95rem;
            line-height: 1.9;
        }

        .qa-answer strong {
            color: var(--ink-title);
            font-weight: 700;
        }

        .qa-answer a {
            color: var(--brand-dark);
            font-weight: 600;
        }

        .qa-help-note {
            margin-top: 24px;
            background: var(--secondary-soft);
            border: 1px solid rgba(31, 111, 92, .14);
            border-radius: var(--radius-md);
            padding: 20px;
            color: var(--secondary);
            font-size: .93rem;
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .qa-help-note i {
            font-size: 1.2rem;
        }

        /* ===== Related guides ===== */
        .guide-card {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

        .guide-card img {
            aspect-ratio: 16 / 10;
            object-fit: cover;
            border-radius: 0;
        }

        .guide-card__body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .guide-card__body h3 {
            font-size: 1.14rem;
            font-weight: 800;
            color: var(--ink-title);
            margin: 0 0 10px;
        }

        .guide-card__body p {
            color: var(--ink-muted);
            font-size: .92rem;
            line-height: 1.8;
            margin-bottom: 18px;
            flex: 1;
        }

        .guide-card__link {
            color: var(--brand-dark);
            font-weight: 700;
            font-size: .9rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .guide-card__link i {
            font-size: .8rem;
            transition: var(--transition);
        }

        .guide-card__link:hover i {
            transform: translateX(4px);
        }

        /* ===== CTA Banner ===== */
        .cta-banner {
            background: linear-gradient(108deg, #E8862B 0%, #D97B24 46%, #1F6F5C 100%);
            border-radius: var(--radius-xl);
            padding: clamp(32px, 5vw, 56px);
            box-shadow: var(--shadow-lg);
            color: #fff;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 30px;
            overflow: hidden;
            position: relative;
        }

        .cta-banner::before {
            content: "";
            position: absolute;
            left: -60px;
            bottom: -80px;
            width: 300px;
            height: 300px;
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-banner__text {
            flex: 1 1 460px;
            position: relative;
            z-index: 1;
        }

        .cta-banner__text h2 {
            margin: 0 0 12px;
            font-size: clamp(1.6rem, 3vw, 2.3rem);
            font-weight: 900;
            line-height: 1.3;
        }

        .cta-banner__text p {
            margin: 0;
            color: rgba(255, 255, 255, .9);
            font-size: .98rem;
            line-height: 1.8;
            max-width: 620px;
        }

        .cta-banner__action {
            position: relative;
            z-index: 1;
            flex-shrink: 0;
        }

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

        .btn-white:hover {
            background: #fff7ef;
            color: var(--brand-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 24px rgba(0, 0, 0, .12);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--deep);
            color: rgba(255, 255, 255, .68);
            margin-top: 0;
        }

        .footer-topline {
            height: 5px;
            background: linear-gradient(90deg, var(--brand), #F4B475 50%, var(--secondary));
            border: 0;
        }

        .site-footer .o-container {
            padding-top: 62px;
            padding-bottom: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: clamp(26px, 5vw, 70px);
            padding-bottom: 42px;
        }

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

        .footer-brand p {
            font-size: .9rem;
            line-height: 1.85;
            color: rgba(255, 255, 255, .62);
            max-width: 320px;
            margin-top: 18px;
        }

        .footer-title {
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-title::after {
            content: "";
            width: 26px;
            height: 2px;
            background: var(--brand);
            border-radius: 4px;
            display: block;
            margin-top: 8px;
        }

        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: grid;
            gap: 12px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, .64);
            font-size: .9rem;
        }

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

        .footer-contact p {
            font-size: .9rem;
            line-height: 1.8;
            margin: 0 0 12px;
            color: rgba(255, 255, 255, .64);
            display: flex;
            gap: 8px;
            align-items: flex-start;
        }

        .footer-contact i {
            color: var(--brand);
            margin-top: 6px;
            width: 16px;
        }

        .footer-social {
            display: flex;
            gap: 10px;
            margin-top: 14px;
        }

        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, .16);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, .75);
        }

        .footer-social a:hover {
            background: var(--brand);
            border-color: var(--brand);
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 22px 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: .84rem;
            color: rgba(255, 255, 255, .48);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, .6);
        }

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

        /* ===== Responsive ===== */
        @media (min-width: 1101px) {
            .main-nav {
                display: flex !important;
            }
        }

        @media (max-width: 1100px) {
            .header-inner {
                min-height: 68px;
                gap: 10px;
            }

            .main-nav {
                display: none;
                position: absolute;
                top: calc(100% + 8px);
                left: 0;
                right: 0;
                background: #fff;
                border: 1px solid var(--line);
                border-radius: 22px;
                box-shadow: var(--shadow-md);
                padding: 14px;
                gap: 6px;
                flex-direction: column;
                align-items: stretch;
            }

            .main-nav.open {
                display: flex;
            }

            .main-nav a {
                padding: 12px 16px;
            }

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

            .header-search {
                display: none;
            }

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

        @media (max-width: 900px) {
            .qa-aside {
                position: static;
                margin-bottom: 26px;
            }

            .qa-aside__panel {
                padding: 18px;
            }
        }

        @media (max-width: 768px) {
            .hero-visual {
                justify-content: center;
                margin-top: 34px;
            }

            .visual-card {
                transform: none;
            }

            .main-nav.open {
                max-height: calc(100vh - 80px);
                overflow-y: auto;
            }
        }

        @media (max-width: 640px) {
            .brand__text {
                font-size: .98rem;
            }

            .brand__icon {
                width: 36px;
                height: 36px;
                font-size: 17px;
                border-radius: 11px;
            }

            .btn-header {
                padding: 0 13px;
                font-size: .84rem;
            }

            .qa-answer {
                padding: 18px 20px 20px 20px;
            }

            .qa-item summary {
                padding: 16px 16px;
                gap: 11px;
            }

            .qa-summary-text {
                font-size: .92rem;
            }

            .qa-summary-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
                padding-bottom: 26px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }

            .hero-stat-row .data-pill {
                flex: 1 1 100%;
            }
        }

        @media (max-width: 480px) {
            .brand__text {
                max-width: 118px;
                overflow: hidden;
                text-overflow: ellipsis;
            }

            .header-actions .btn-header span {
                display: none;
            }

            .header-actions .btn-header::after {
                content: "答疑";
            }

            .btn-header {
                padding: 0 15px;
            }

            .cta-banner {
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-banner__action {
                width: 100%;
            }

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

/* roulang page: category2 */
:root{
  --primary:#D97318;
  --primary-strong:#E8862B;
  --primary-soft:#FDF2E4;
  --primary-line:#F0C79A;
  --secondary:#1F6F5C;
  --secondary-soft:#E8F2EE;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --ink:#1E2019;
  --body:#2C2B2A;
  --muted:#7A7A70;
  --line:#E6E0D3;
  --line-soft:#EFEAE0;
  --radius-lg:24px;
  --radius:18px;
  --radius-sm:10px;
  --shadow-sm:0 4px 16px rgba(30,20,5,.06);
  --shadow-md:0 8px 24px rgba(30,20,5,.10);
  --shadow-lg:0 18px 44px rgba(30,20,5,.13);
  --ease:cubic-bezier(.2,0,0,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'PingFang SC','Microsoft YaHei','Noto Sans SC',微软雅黑,sans-serif;
  font-size:17px;
  line-height:1.75;
  color:var(--body);
  background:var(--bg);
  letter-spacing:0;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease);}
a:hover{color:#B45C10;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid rgba(217,115,24,.55);outline-offset:2px;}
h1,h2,h3,h4{color:var(--ink);font-weight:700;line-height:1.35;margin:0 0 14px;letter-spacing:0;}
h1{font-size:42px;}
h2{font-size:30px;}
h3{font-size:22px;}
p{margin:0 0 16px;}
ul,ol{margin:0 0 16px;padding-left:20px;}
button{font-family:inherit;}
.o-container{max-width:var(--container);margin:0 auto;padding:0 22px;width:100%;}
.num{font-family:'Inter',ui-monospace,SFMono-Regular,Menlo,monospace;font-feature-settings:"tnum";}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#FFFCF7;
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 10px rgba(30,20,5,.04);
}
.header-inner{
  display:flex;align-items:center;gap:26px;
  min-height:76px;
}
.brand{display:flex;align-items:center;gap:11px;color:var(--ink);flex-shrink:0;}
.brand:hover{color:var(--ink);}
.brand__icon{
  width:40px;height:40px;border-radius:12px;
  background:linear-gradient(135deg,var(--primary-strong),var(--primary));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:17px;box-shadow:0 6px 14px rgba(217,115,24,.28);
}
.brand__text{display:flex;flex-direction:column;font-size:17px;font-weight:700;line-height:1.2;}
.brand__text small{font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.02em;margin-top:2px;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px;flex-wrap:wrap;}
.main-nav a{
  display:inline-block;font-size:15px;color:#4A4A42;
  padding:8px 14px;border-radius:999px;
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.main-nav a:hover{background:var(--primary-soft);color:var(--primary);}
.main-nav a.is-active{background:var(--primary);color:#fff;box-shadow:0 6px 14px rgba(217,115,24,.24);}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search-box{position:relative;display:flex;align-items:center;}
.search-box input{
  width:180px;height:40px;border-radius:999px;
  border:1px solid var(--line);background:#fff;
  padding:0 38px 0 16px;font-size:14px;color:var(--body);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),width .2s var(--ease);
}
.search-box input::placeholder{color:#A5A296;}
.search-box input:focus{border-color:var(--primary-line);box-shadow:0 0 0 3px rgba(217,115,24,.14);outline:none;width:210px;}
.search-box i{position:absolute;right:14px;color:var(--muted);font-size:13px;pointer-events:none;}
.nav-toggle{
  display:none;margin-left:auto;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--ink);font-size:16px;cursor:pointer;
}
.nav-toggle:hover{background:var(--primary-soft);border-color:var(--primary-line);color:var(--primary);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:10px;font-size:15px;font-weight:600;
  padding:12px 24px;border:1px solid transparent;cursor:pointer;
  transition:transform .12s var(--ease),box-shadow .2s var(--ease),background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn--primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(217,115,24,.24);}
.btn--primary:hover{background:#C0650F;color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(217,115,24,.3);}
.btn--primary:active{transform:translateY(0);}
.btn--ghost{background:#fff;color:var(--ink);border-color:var(--line);}
.btn--ghost:hover{background:var(--primary-soft);border-color:var(--primary-line);color:var(--primary);transform:translateY(-2px);}
.btn--sm{padding:9px 18px;font-size:14px;border-radius:9px;}
.btn--lg{padding:15px 32px;font-size:16px;border-radius:12px;}
.btn--light{background:#fff;color:var(--primary);}
.btn--light:hover{background:#FFF6EA;color:#B45C10;}

/* ============ 面包屑 ============ */
.crumb-bar{background:#FFFCF7;border-bottom:1px solid var(--line-soft);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:13.5px;color:var(--muted);padding:16px 0;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--primary);}
.crumb i{font-size:10px;opacity:.55;}
.crumb .current{color:var(--primary);font-weight:600;}

/* ============ Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  background:
    linear-gradient(180deg,rgba(253,242,228,.75) 0%,rgba(247,244,238,1) 78%);
  border-bottom:1px solid var(--line-soft);
}
.page-hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(217,115,24,.16),rgba(217,115,24,0) 68%);pointer-events:none;
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:56px;align-items:center;padding:64px 0 68px;
}
.tagline{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--primary-line);color:var(--primary);
  font-size:13px;font-weight:600;padding:6px 14px;border-radius:999px;margin-bottom:20px;
}
.tagline i{font-size:11px;}
.page-hero h1{font-size:44px;margin-bottom:18px;}
.page-hero h1 em{font-style:normal;color:var(--primary);}
.hero-lead{font-size:17.5px;color:#4A4A42;max-width:560px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:14px;}
.badge-stat{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:12px 18px;box-shadow:var(--shadow-sm);min-width:132px;
}
.badge-stat b{display:block;font-size:26px;line-height:1.1;color:var(--ink);font-weight:800;}
.badge-stat b span{font-size:13px;font-weight:600;color:var(--muted);margin-left:3px;}
.badge-stat small{font-size:12.5px;color:var(--muted);}
.hero-visual{position:relative;}
.hero-visual .frame{
  border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid #E9E7DF;background:#fff;box-shadow:var(--shadow-lg);
}
.hero-visual .frame img{width:100%;height:380px;object-fit:cover;}
.hero-visual .float-card{
  position:absolute;left:-24px;bottom:-26px;background:#fff;border:1px solid var(--line);
  border-radius:16px;box-shadow:var(--shadow-md);padding:16px 20px;max-width:250px;
}
.hero-visual .float-card strong{display:block;font-size:15px;color:var(--ink);margin-bottom:4px;}
.hero-visual .float-card span{font-size:13px;color:var(--muted);line-height:1.6;}
.hero-visual .float-card i{color:var(--secondary);margin-right:6px;}

/* ============ 板块通用 ============ */
.section{padding:86px 0;}
.section--tight{padding:64px 0;}
.section--alt{background:#FFFCF7;border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.section-head{max-width:760px;margin-bottom:44px;}
.kicker{
  display:inline-block;font-size:12.5px;font-weight:700;color:var(--secondary);
  background:var(--secondary-soft);border-radius:999px;padding:5px 13px;margin-bottom:14px;letter-spacing:.02em;
}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:16.5px;margin:0;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}

/* ============ 快速入口卡 ============ */
.entry-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.entry-card{
  background:#fff;border:1px solid #EBE4D8;border-radius:var(--radius);
  padding:28px;box-shadow:var(--shadow-sm);
  display:flex;flex-direction:column;height:100%;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--primary-line);}
.entry-card__icon{
  width:46px;height:46px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:var(--primary-soft);color:var(--primary);font-size:18px;margin-bottom:18px;
}
.entry-card h3{font-size:19px;margin-bottom:10px;}
.entry-card p{font-size:15px;color:#54544C;margin-bottom:16px;}
.entry-card .mini-list{list-style:none;padding:0;margin:0 0 20px;}
.entry-card .mini-list li{position:relative;padding-left:16px;font-size:14px;color:var(--muted);line-height:1.85;}
.entry-card .mini-list li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--primary-line);
}
.entry-card .card-link{margin-top:auto;font-size:14.5px;font-weight:600;display:inline-flex;align-items:center;gap:7px;}
.entry-card .card-link i{font-size:11px;transition:transform .2s var(--ease);}
.entry-card:hover .card-link i{transform:translateX(3px);}
.entry-card--accent{background:linear-gradient(160deg,#FFF8EF,#FFFFFF 62%);border-color:var(--primary-line);}

/* ============ 左右图文 ============ */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:center;}
.spec-table{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-sm);
}
.spec-row{display:grid;grid-template-columns:1fr 1fr;border-bottom:1px solid var(--line-soft);}
.spec-row:last-child{border-bottom:none;}
.spec-row div{padding:15px 20px;font-size:14.5px;}
.spec-row div:first-child{color:var(--muted);background:#FFFCF7;border-right:1px solid var(--line-soft);}
.spec-row div:last-child{color:var(--ink);font-weight:600;}
.media-card{
  border-radius:var(--radius-lg);overflow:hidden;border:1px solid #E9E7DF;
  background:#fff;box-shadow:var(--shadow-md);
}
.media-card img{width:100%;height:330px;object-fit:cover;}
.media-strip{
  display:flex;gap:12px;flex-wrap:wrap;margin-top:18px;
}
.chip{
  background:#fff;border:1px solid var(--line);border-radius:999px;
  font-size:13px;color:#54544C;padding:7px 15px;
}
.chip i{color:var(--primary);margin-right:6px;font-size:11px;}

/* ============ 步骤流程 ============ */
.step-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;counter-reset:step;}
.step{
  background:#fff;border:1px solid #EBE4D8;border-radius:var(--radius);
  padding:26px 24px 24px;box-shadow:var(--shadow-sm);position:relative;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.step__num{
  font-size:13px;font-weight:800;color:var(--primary);
  background:var(--primary-soft);border-radius:8px;padding:4px 10px;display:inline-block;margin-bottom:16px;
}
.step h3{font-size:18px;margin-bottom:9px;}
.step p{font-size:14.5px;color:var(--muted);margin:0;}
.step::after{
  content:"";position:absolute;top:44px;right:-11px;width:22px;height:2px;background:var(--primary-line);
}
.step:last-child::after{display:none;}

/* ============ 场景区 ============ */
.scene-wrap{
  background:
    linear-gradient(rgba(255,252,247,.94),rgba(255,252,247,.94)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);
}
.scene-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.scene-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;box-shadow:var(--shadow-sm);display:flex;gap:20px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.scene-card img{width:104px;height:104px;border-radius:14px;object-fit:cover;flex-shrink:0;border:1px solid #E9E7DF;}
.scene-card h3{font-size:18px;margin-bottom:8px;}
.scene-card p{font-size:14.5px;color:var(--muted);margin:0;}

/* ============ 提示条 ============ */
.notice{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--secondary-soft);border:1px solid #CFE4DC;border-radius:var(--radius);
  padding:22px 26px;margin-top:34px;
}
.notice i{color:var(--secondary);font-size:18px;margin-top:3px;}
.notice strong{display:block;color:var(--ink);font-size:15.5px;margin-bottom:5px;}
.notice p{margin:0;font-size:14.5px;color:#3E5A52;}

/* ============ FAQ ============ */
.faq-list{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item[open]{border-color:var(--primary-line);box-shadow:var(--shadow-md);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:22px 26px;
  display:flex;align-items:center;gap:14px;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .q{
  color:var(--primary);font-size:14px;font-weight:800;opacity:.85;flex-shrink:0;
}
.faq-item summary .sign{
  margin-left:auto;width:26px;height:26px;border-radius:8px;flex-shrink:0;
  background:var(--primary-soft);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:12px;
  transition:transform .2s var(--ease);
}
.faq-item[open] summary .sign{transform:rotate(180deg);}
.faq-item .answer{padding:0 26px 24px 68px;font-size:15.5px;color:#54544C;line-height:1.85;}
.faq-item .answer p:last-child{margin-bottom:0;}

/* ============ CTA 横幅 ============ */
.cta-banner{
  border-radius:var(--radius-lg);
  background:linear-gradient(120deg,#D97318 0%,#E8862B 48%,#1F6F5C 140%);
  color:#fff;padding:46px 52px;
  display:flex;align-items:center;gap:34px;flex-wrap:wrap;
  box-shadow:0 20px 44px rgba(217,115,24,.26);
}
.cta-banner h2{color:#fff;font-size:28px;margin-bottom:10px;}
.cta-banner p{color:rgba(255,255,255,.92);margin:0;font-size:16px;max-width:640px;}
.cta-banner .cta-actions{margin-left:auto;display:flex;gap:14px;flex-wrap:wrap;}
.cta-banner .btn--ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.5);}
.cta-banner .btn--ghost:hover{background:rgba(255,255,255,.24);color:#fff;border-color:#fff;}

/* ============ 页脚 ============ */
.site-footer{background:#262018;color:#D9D2C6;margin-top:0;}
.footer-topline{height:4px;background:linear-gradient(90deg,var(--primary) 0%,var(--primary-strong) 45%,var(--secondary) 100%);}
.site-footer .o-container{padding-top:62px;padding-bottom:26px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.site-footer .brand__text{color:#fff;}
.site-footer .brand__text small{color:#A79E8F;}
.site-footer .brand__icon{box-shadow:none;}
.footer-brand p{font-size:14.5px;color:#A79E8F;line-height:1.85;margin-top:18px;max-width:330px;}
.footer-title{color:#fff;font-size:15.5px;font-weight:700;margin-bottom:18px;}
.footer-links{list-style:none;padding:0;margin:0;}
.footer-links li{margin-bottom:11px;}
.footer-links a{color:#BDB4A5;font-size:14.5px;}
.footer-links a:hover{color:var(--primary-strong);}
.footer-contact p{font-size:14.5px;color:#BDB4A5;margin:0 0 12px;display:flex;align-items:center;gap:10px;}
.footer-contact i{color:var(--primary-strong);font-size:13px;width:16px;}
.footer-social{display:flex;gap:11px;margin-top:18px;}
.footer-social a{
  width:36px;height:36px;border-radius:10px;background:rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:center;color:#D9D2C6;font-size:14px;
}
.footer-social a:hover{background:var(--primary);color:#fff;}
.footer-bottom{
  margin-top:46px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:#8F8879;
}
.footer-bottom a{color:#8F8879;}
.footer-bottom a:hover{color:var(--primary-strong);}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  h1{font-size:38px;}
  .page-hero h1{font-size:38px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;padding:52px 0 58px;}
  .hero-visual .frame img{height:320px;}
  .hero-visual .float-card{left:18px;bottom:-20px;}
  .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .step-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .step:nth-child(2)::after{display:none;}
  .split{grid-template-columns:1fr;gap:36px;}
  .cta-banner{padding:38px 34px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:860px){
  .main-nav{
    display:none;position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:4px;
    background:#FFFCF7;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-md);padding:14px 18px 18px;margin:0;
  }
  .main-nav.is-open{display:flex;}
  .main-nav a{padding:12px 14px;border-radius:12px;font-size:15.5px;}
  .nav-toggle{display:flex;align-items:center;justify-content:center;}
  .header-actions{display:none;}
  .site-header{position:relative;}
}
@media (max-width:768px){
  body{font-size:16px;}
  h1{font-size:32px;}
  h2{font-size:25px;}
  h3{font-size:20px;}
  .section{padding:58px 0;}
  .page-hero h1{font-size:33px;}
  .hero-lead{font-size:16px;}
  .entry-grid{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;}
  .faq-item summary{padding:18px 20px;font-size:16px;}
  .faq-item .answer{padding:0 20px 20px 52px;}
  .spec-row{grid-template-columns:1fr;}
  .spec-row div:first-child{border-right:none;border-bottom:1px solid var(--line-soft);}
  .cta-banner{padding:32px 26px;gap:22px;}
  .cta-banner h2{font-size:23px;}
  .cta-banner .cta-actions{margin-left:0;width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:520px){
  .o-container{padding:0 16px;}
  .page-hero h1{font-size:29px;}
  .step-grid{grid-template-columns:1fr;}
  .step::after{display:none;}
  .hero-badges{gap:10px;}
  .badge-stat{flex:1 1 44%;min-width:0;padding:10px 14px;}
  .badge-stat b{font-size:22px;}
  .scene-card{flex-direction:column;}
  .scene-card img{width:100%;height:150px;}
  .hero-visual .frame img{height:230px;}
  .media-card img{height:230px;}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;}
}

/* roulang page: category1 */
:root{
    --brand:#D97318;
    --brand-2:#E8862B;
    --brand-deep:#B85D0E;
    --brand-soft:#FDF1E3;
    --second:#1F6F5C;
    --second-soft:#E9F3F0;
    --bg:#F7F4EE;
    --card:#FFFFFF;
    --ink:#1E2019;
    --body:#2C2B2A;
    --muted:#7A7A70;
    --line:#E6E0D3;
    --line-soft:#EBE4D8;
    --r-sm:8px;
    --r-md:14px;
    --r-lg:18px;
    --r-xl:24px;
    --shadow-s:0 4px 16px rgba(30,20,5,.06);
    --shadow-m:0 8px 24px rgba(30,20,5,.10);
    --ease:cubic-bezier(.2,0,0,1);
    --num-font:"Inter","SFMono-Regular",ui-monospace,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
    margin:0;
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","微软雅黑",Helvetica,Arial,sans-serif;
    font-size:17px;
    line-height:1.75;
    color:var(--body);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease);}
a:hover{color:var(--brand);}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.35;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid rgba(217,115,24,.55);outline-offset:2px;border-radius:6px;}
.o-container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.num{font-family:var(--num-font);font-variant-numeric:tabular-nums;}

/* ---------- 顶部导航 ---------- */
.site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:#FFFCF7;
    border-bottom:1px solid var(--line);
    box-shadow:0 1px 3px rgba(30,20,5,.04);
}
.header-inner{
    display:flex;
    align-items:center;
    gap:22px;
    height:76px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand__icon{
    width:40px;height:40px;border-radius:12px;
    background:linear-gradient(140deg,var(--brand-2),var(--brand-deep));
    color:#fff;display:flex;align-items:center;justify-content:center;
    font-size:17px;box-shadow:0 4px 12px rgba(217,115,24,.28);
}
.brand__text{
    display:flex;flex-direction:column;line-height:1.2;
    font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.01em;
}
.brand__text small{
    font-size:11.5px;font-weight:500;color:var(--muted);letter-spacing:.04em;margin-top:2px;
}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto;}
.main-nav a{
    position:relative;
    padding:8px 14px;border-radius:10px;
    font-size:15px;color:#43423C;white-space:nowrap;
}
.main-nav a:hover{background:var(--brand-soft);color:var(--brand-deep);}
.main-nav a.is-active{
    color:#fff;background:var(--brand);
    box-shadow:0 4px 12px rgba(217,115,24,.25);
}
.main-nav a.is-active:hover{color:#fff;background:var(--brand-deep);}
.header-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.search-box{
    display:flex;align-items:center;gap:8px;
    height:42px;padding:0 16px;
    background:#fff;border:1px solid var(--line);
    border-radius:22px;color:var(--muted);font-size:14px;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(217,115,24,.14);}
.search-box input{
    border:0;background:transparent;outline:none;width:120px;color:var(--ink);
}
.search-box input::placeholder{color:#A9A79C;}
.nav-toggle{
    display:none;width:44px;height:44px;border-radius:12px;
    border:1px solid var(--line);background:#fff;color:var(--ink);
    align-items:center;justify-content:center;font-size:17px;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}

/* ---------- 按钮 ---------- */
.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 24px;border-radius:10px;
    font-size:15.5px;font-weight:600;line-height:1.2;
    transition:transform .12s var(--ease),background-color .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease);
    white-space:nowrap;
}
.btn--primary{
    background:linear-gradient(135deg,var(--brand-2),var(--brand-deep));
    color:#fff;box-shadow:0 6px 16px rgba(217,115,24,.28);
}
.btn--primary:hover{color:#fff;box-shadow:0 10px 22px rgba(217,115,24,.34);transform:translateY(-2px);}
.btn--primary:active{transform:translateY(0);}
.btn--ghost{
    background:#fff;color:var(--ink);
    border:1px solid var(--line);box-shadow:var(--shadow-s);
}
.btn--ghost:hover{color:var(--brand-deep);border-color:#E4C79F;background:#FFFBF6;}
.btn--light{background:#fff;color:var(--brand-deep);box-shadow:0 6px 18px rgba(30,20,5,.14);}
.btn--light:hover{color:var(--brand-deep);background:#FFF6EB;transform:translateY(-2px);}
.btn--sm{padding:10px 18px;font-size:14.5px;border-radius:9px;}

/* ---------- 面包屑 ---------- */
.breadcrumb-wrap{padding:22px 0 0;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#CFC9BC;}
.breadcrumb .current{color:var(--brand-deep);font-weight:600;}

/* ---------- 分类页首屏 ---------- */
.cat-hero{
    position:relative;
    overflow:hidden;
    padding:44px 0 72px;
    background:linear-gradient(180deg,#FDF9F2 0%,#F7F4EE 100%);
}
.cat-hero::before{
    content:"";
    position:absolute;inset:0;
    background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    opacity:.10;
    pointer-events:none;
}
.cat-hero .o-container{position:relative;z-index:1;}
.tag{
    display:inline-flex;align-items:center;gap:7px;
    padding:6px 14px;border-radius:999px;
    background:var(--brand-soft);color:var(--brand-deep);
    font-size:13px;font-weight:600;letter-spacing:.02em;
}
.tag i{font-size:11px;}
.cat-hero h1{
    font-size:clamp(30px,4vw,43px);
    margin:18px 0 16px;
    letter-spacing:-.01em;
}
.cat-hero h1 em{font-style:normal;color:var(--brand-deep);}
.lead{
    font-size:17.5px;color:#55534C;max-width:560px;margin-bottom:24px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:14px;}
.badge{
    display:flex;align-items:center;gap:12px;
    background:#fff;border:1px solid var(--line-soft);
    border-radius:var(--r-md);
    padding:12px 18px;min-width:150px;
    box-shadow:var(--shadow-s);
    transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.badge:hover{transform:translateY(-2px);box-shadow:var(--shadow-m);}
.badge__dot{
    width:34px;height:34px;border-radius:10px;flex:0 0 auto;
    display:flex;align-items:center;justify-content:center;
    background:var(--brand-soft);color:var(--brand-deep);font-size:14px;
}
.badge__num{font-size:21px;font-weight:700;color:var(--ink);line-height:1.1;font-family:var(--num-font);}
.badge__label{font-size:12.5px;color:var(--muted);line-height:1.3;margin-top:3px;}
.hero-media{
    border-radius:var(--r-xl);
    overflow:hidden;
    background:linear-gradient(140deg,#FBE7CE,#F6D9B4 60%,#EFC79A);
    border:1px solid #EBDCC6;
    box-shadow:0 14px 36px rgba(30,20,5,.12);
    margin-top:34px;
}
.hero-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11;}

/* ---------- 板块通用 ---------- */
.section{padding:78px 0;}
.section--tight{padding:56px 0;}
.section--paper{background:#FFFDF9;border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head .kicker{
    display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.08em;
    color:var(--brand-deep);background:var(--brand-soft);
    padding:5px 12px;border-radius:6px;margin-bottom:14px;
}
.section-head h2{font-size:clamp(24px,2.6vw,31px);margin-bottom:14px;}
.section-head p{color:#5C5A53;margin:0;font-size:16.5px;}
.section-head--split{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;max-width:none;}
.section-head--split .more-link{font-size:14.5px;font-weight:600;color:var(--brand-deep);display:inline-flex;align-items:center;gap:6px;}

/* ---------- 要点小卡 ---------- */
.point-card{
    background:var(--card);border:1px solid var(--line-soft);
    border-radius:var(--r-lg);padding:28px;
    height:100%;box-shadow:var(--shadow-s);
    transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.point-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-m);}
.point-card .ico{
    width:46px;height:46px;border-radius:13px;
    display:flex;align-items:center;justify-content:center;
    background:var(--brand-soft);color:var(--brand-deep);font-size:19px;
    margin-bottom:18px;
}
.point-card h3{font-size:19px;margin-bottom:10px;}
.point-card p{font-size:15.5px;color:#5C5A53;margin:0;}

/* ---------- 说明卡片组 ---------- */
.card-grid{margin-top:8px;}
.topic-card{
    display:flex;flex-direction:column;height:100%;
    background:var(--card);border:1px solid var(--line-soft);
    border-radius:var(--r-lg);overflow:hidden;
    box-shadow:var(--shadow-s);
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.topic-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-m);border-color:#E7D3B6;}
.topic-card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#F2EDE4;}
.topic-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.topic-card:hover .topic-card__media img{transform:scale(1.03);}
.topic-card__body{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1;}
.chip{
    display:inline-flex;align-items:center;
    padding:4px 11px;border-radius:999px;font-size:12px;font-weight:600;
    background:var(--second-soft);color:var(--second);margin-bottom:12px;align-self:flex-start;
}
.chip--brand{background:var(--brand-soft);color:var(--brand-deep);}
.topic-card h3{font-size:18.5px;margin-bottom:10px;}
.topic-card p{font-size:15px;color:#5C5A53;margin:0 0 18px;flex:1;}
.card-link{
    font-size:14.5px;font-weight:600;color:var(--brand-deep);
    display:inline-flex;align-items:center;gap:7px;
}
.card-link i{font-size:12px;transition:transform .2s var(--ease);}
.topic-card:hover .card-link i{transform:translateX(3px);}

/* ---------- 对照检查区 ---------- */
.compare-wrap{
    background:var(--card);border:1px solid var(--line-soft);
    border-radius:var(--r-xl);padding:30px;
    box-shadow:var(--shadow-s);
}
.compare-head{
    display:grid;grid-template-columns:1fr 1.3fr;gap:18px;
    padding:0 4px 14px;border-bottom:1px solid var(--line-soft);
    font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--muted);
}
.compare-row{
    display:grid;grid-template-columns:1fr 1.3fr;gap:18px;
    padding:18px 4px;border-bottom:1px dashed var(--line-soft);
    align-items:flex-start;
}
.compare-row:last-child{border-bottom:0;padding-bottom:4px;}
.compare-row .q{font-weight:600;color:var(--ink);font-size:15.5px;display:flex;gap:9px;}
.compare-row .q i{color:var(--brand);font-size:13px;margin-top:6px;}
.compare-row .a{font-size:15.5px;color:#5C5A53;}

/* ---------- 流程步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.step{
    position:relative;background:#fff;border:1px solid var(--line-soft);
    border-radius:var(--r-lg);padding:28px 24px;
    box-shadow:var(--shadow-s);
    transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-m);}
.step__num{
    font-family:var(--num-font);font-size:30px;font-weight:700;
    color:var(--brand);opacity:.28;line-height:1;
}
.step h3{font-size:17.5px;margin:14px 0 9px;}
.step p{font-size:15px;color:#5C5A53;margin:0;}
.step::after{
    content:"";position:absolute;top:44px;right:-14px;
    width:22px;height:2px;background:var(--line);display:none;
}

/* ---------- 速查表 ---------- */
.table-wrap{
    overflow-x:auto;background:#fff;border:1px solid var(--line-soft);
    border-radius:var(--r-lg);box-shadow:var(--shadow-s);
}
table.data-table{width:100%;border-collapse:collapse;min-width:620px;}
table.data-table caption{
    text-align:left;padding:20px 24px 0;font-size:14px;color:var(--muted);
}
table.data-table th,table.data-table td{
    padding:16px 24px;text-align:left;font-size:15px;
    border-bottom:1px solid var(--line-soft);
}
table.data-table th{
    background:#FBF7F0;color:var(--ink);font-weight:700;font-size:14px;
    letter-spacing:.02em;white-space:nowrap;
}
table.data-table tr:last-child td{border-bottom:0;}
table.data-table tbody tr:hover{background:#FFFBF5;}
table.data-table td:first-child{font-weight:600;color:var(--ink);white-space:nowrap;}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
    background:#fff;border:1px solid var(--line-soft);
    border-radius:var(--r-lg);box-shadow:var(--shadow-s);
    overflow:hidden;transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.faq-item:hover{box-shadow:var(--shadow-m);}
.faq-item[open]{border-color:#E7D3B6;}
.faq-item summary{
    list-style:none;cursor:pointer;
    display:flex;align-items:center;gap:14px;
    padding:20px 24px;font-size:16.5px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .q-mark{
    color:var(--brand);font-weight:700;font-size:14px;
    font-family:var(--num-font);opacity:.85;
}
.faq-item summary .plus{
    margin-left:auto;width:26px;height:26px;flex:0 0 auto;
    border-radius:8px;background:var(--brand-soft);color:var(--brand-deep);
    display:flex;align-items:center;justify-content:center;font-size:14px;
    transition:transform .2s var(--ease);
}
.faq-item[open] summary .plus{transform:rotate(45deg);}
.faq-item .faq-body{
    padding:0 24px 22px 62px;font-size:15.5px;color:#5C5A53;
    animation:fadeUp .24s var(--ease);
}
@keyframes fadeUp{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:translateY(0);}}

/* ---------- 栏目跳转 ---------- */
.cat-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px;}
.cat-links a{
    display:inline-flex;align-items:center;gap:9px;
    padding:11px 18px;border-radius:999px;
    background:#fff;border:1px solid var(--line);font-size:14.5px;font-weight:600;
    box-shadow:var(--shadow-s);
    transition:transform .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.cat-links a:hover{border-color:#E4C79F;color:var(--brand-deep);transform:translateY(-2px);}
.cat-links a i{font-size:12px;color:var(--brand);}

/* ---------- CTA 横幅 ---------- */
.cta-section{padding:0 0 82px;}
.cta-banner{
    border-radius:var(--r-xl);
    padding:44px 46px;
    background:linear-gradient(120deg,#D97318 0%,#E8862B 45%,#1F6F5C 130%);
    color:#fff;
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
    box-shadow:0 18px 42px rgba(180,110,40,.24);
    position:relative;overflow:hidden;
}
.cta-banner::after{
    content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;
    border-radius:50%;background:rgba(255,255,255,.10);
}
.cta-banner h2{color:#fff;font-size:clamp(21px,2.3vw,27px);margin-bottom:10px;position:relative;z-index:1;}
.cta-banner p{color:rgba(255,255,255,.88);margin:0;font-size:15.5px;position:relative;z-index:1;}
.cta-banner .btn{position:relative;z-index:1;}

/* ---------- 页脚 ---------- */
.site-footer{background:#262018;color:#C9C3B8;padding:0 0 26px;font-size:14.5px;}
.footer-topline{height:3px;background:linear-gradient(90deg,var(--brand-2),#F0C48F 55%,var(--second));}
.footer-grid{
    display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
    padding:56px 0 40px;
}
.site-footer .brand__text{color:#fff;}
.site-footer .brand__text small{color:#9C968B;}
.footer-brand p{margin:18px 0 0;font-size:14px;line-height:1.8;color:#A8A196;max-width:340px;}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{color:#B7B0A4;}
.footer-links a:hover{color:#F0B171;}
.footer-contact p{display:flex;align-items:center;gap:9px;margin:0 0 12px;color:#B7B0A4;font-size:14px;}
.footer-contact i{color:#E8862B;font-size:13px;}
.footer-social{display:flex;gap:10px;margin-top:16px;}
.footer-social a{
    width:36px;height:36px;border-radius:10px;
    background:rgba(255,255,255,.07);color:#D8D2C7;
    display:flex;align-items:center;justify-content:center;font-size:14px;
    transition:background-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.footer-social a:hover{background:var(--brand);color:#fff;transform:translateY(-2px);}
.footer-bottom{
    border-top:1px solid rgba(255,255,255,.10);
    padding-top:22px;display:flex;flex-wrap:wrap;gap:12px;
    justify-content:space-between;font-size:13.5px;color:#918B80;
}
.footer-bottom a{color:#C9C3B8;}
.footer-bottom a:hover{color:#F0B171;}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
    .header-inner{height:64px;gap:12px;}
    .brand__text{font-size:16px;}
    .brand__text small{display:none;}
    .nav-toggle{display:inline-flex;order:3;}
    .main-nav{
        position:absolute;left:0;right:0;top:100%;
        flex-direction:column;align-items:stretch;gap:4px;
        background:#FFFCF7;border-bottom:1px solid var(--line);
        box-shadow:var(--shadow-m);
        padding:12px;margin-left:0;display:none;
    }
    .main-nav.is-open{display:flex;}
    .main-nav a{padding:12px 14px;font-size:15.5px;border-radius:10px;}
    .header-tools{margin-left:auto;}
    .search-box{display:none;}
    .cat-hero{padding:32px 0 54px;}
    .hero-media{margin-top:28px;}
    .section{padding:56px 0;}
    .section--tight{padding:44px 0;}
    .steps{grid-template-columns:repeat(2,1fr);}
    .step::after{display:none;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:34px;padding:46px 0 34px;}
    .compare-head,.compare-row{grid-template-columns:1fr;}
    .compare-head{padding-bottom:10px;}
    .cta-banner{padding:34px 28px;}
    .cta-section{padding:0 0 60px;}
}
@media screen and (max-width:767px){
    body{font-size:16px;}
    .hero-badges{gap:10px;}
    .badge{min-width:calc(50% - 5px);padding:11px 14px;gap:10px;}
    .badge__num{font-size:19px;}
    .hero-actions .btn{flex:1 1 auto;justify-content:center;}
    .section{padding:46px 0;}
    .section-head{margin-bottom:28px;}
    .point-card{padding:24px;}
    .compare-wrap{padding:20px;}
    .footer-grid{grid-template-columns:1fr;gap:30px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:520px){
    .o-container{padding:0 16px;}
    .cat-hero h1{font-size:30px;}
    .lead{font-size:16px;}
    .badge{min-width:100%;}
    .steps{grid-template-columns:1fr;}
    .btn{width:100%;}
    .cta-banner{flex-direction:column;align-items:flex-start;}
    .cta-banner .btn{width:auto;}
    .cat-links a{width:100%;justify-content:flex-start;}
    .faq-item .faq-body{padding-left:24px;}
}