/* roulang page: index */
:root {
            --ui-brand: #1973E8;
            --ui-brand-hover: #0E5BC4;
            --ui-brand-deep: #0A4DA8;
            --ui-teal: #14B8A6;
            --ui-orange: #F97316;
            --ui-bg: #F6F8FB;
            --ui-white: #FFFFFF;
            --ui-text: #132033;
            --ui-text-secondary: #64748A;
            --ui-text-light: #94A3B8;
            --ui-border: #E5EAF0;
            --ui-primary-soft: rgba(25, 115, 232, .06);
            --ui-font: Inter, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --ui-radius-sm: 10px;
            --ui-radius-md: 16px;
            --ui-radius-lg: 24px;
            --ui-radius-pill: 99px;
            --ui-shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 6px 20px rgba(16, 24, 40, .06);
            --ui-shadow-lg: 0 4px 8px rgba(16, 24, 40, .06), 0 16px 30px rgba(16, 24, 40, .10);
            --ui-header-height: 72px;
            --ui-tab-height: 64px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--ui-font);
            background: var(--ui-bg);
            color: var(--ui-text);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            letter-spacing: .01em;
            overflow-x: hidden;
        }

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

        a {
            color: var(--ui-brand);
            text-decoration: none;
            transition: color .22s ease;
        }

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

        ul,
        ol {
            list-style: none;
        }

        button {
            font-family: inherit;
        }

        :focus-visible {
            outline: 3px solid rgba(25, 115, 232, .25);
            outline-offset: 2px;
            border-radius: var(--ui-radius-sm);
        }

        .container {
            max-width: 1200px;
        }

        .ui-section {
            padding: 90px 0;
        }

        @media (max-width: 991.98px) {
            .ui-section {
                padding: 72px 0;
            }
        }

        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--ui-brand);
            font-size: .875rem;
            font-weight: 600;
            letter-spacing: .02em;
            margin-bottom: 14px;
            padding: 7px 16px;
            background: rgba(25, 115, 232, .08);
            border-radius: var(--ui-radius-pill);
        }

        .section-eyebrow .bi {
            font-size: 1rem;
        }

        .section-title {
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            font-weight: 700;
            line-height: 1.25;
            color: var(--ui-text);
            margin-bottom: 16px;
        }

        .section-desc {
            color: var(--ui-text-secondary);
            font-size: 1.0625rem;
            max-width: 720px;
            margin-bottom: 0;
        }

        .text-balanced {
            max-width: 680px;
        }

        /* 顶部导航 */
        .ui-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            height: var(--ui-header-height);
            background: rgba(255, 255, 255, .96);
            border-bottom: 1px solid transparent;
            transition: box-shadow .28s ease, background .28s ease;
        }

        .ui-header.scrolled {
            background: rgba(255, 255, 255, .97);
            border-bottom-color: var(--ui-border);
            box-shadow: 0 8px 24px rgba(16, 24, 40, .05);
        }

        .ui-header .container {
            height: 100%;
        }

        .ui-header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 20px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--ui-text);
            font-weight: 800;
            font-size: 1.35rem;
            line-height: 1.2;
            flex-shrink: 0;
        }

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

        .brand-mark {
            width: 38px;
            height: 38px;
            border-radius: 11px;
            background: var(--ui-brand);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 6px 14px rgba(25, 115, 232, .28);
        }

        .brand-text span {
            font-weight: 400;
            color: var(--ui-text-secondary);
            margin-left: 2px;
        }

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

        .main-nav .nav-link-item {
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--ui-text);
            font-weight: 500;
            font-size: 1rem;
            padding: 8px 2px;
            line-height: 1.4;
        }

        .main-nav .nav-link-item:hover {
            color: var(--ui-brand-hover);
        }

        .main-nav .nav-link-item.active {
            color: var(--ui-brand);
        }

        .main-nav .nav-link-item.active::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: 0;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: var(--ui-radius-pill);
            background: var(--ui-brand);
        }

        .header-cta {
            display: flex;
            align-items: center;
        }

        .btn-ui-main {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--ui-radius-sm);
            background: var(--ui-brand);
            color: #fff;
            border: 0;
            font-weight: 600;
            font-size: 1rem;
            line-height: 1.5;
            transition: background .22s ease, box-shadow .22s ease, transform .22s ease;
        }

        .btn-ui-main:hover {
            background: var(--ui-brand-hover);
            color: #fff;
            box-shadow: 0 10px 22px rgba(25, 115, 232, .24);
            transform: translateY(-1px);
        }

        .btn-ui-main:active {
            background: var(--ui-brand-deep);
            transform: translateY(1px);
        }

        .btn-ui-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 22px;
            border-radius: var(--ui-radius-sm);
            background: #fff;
            color: var(--ui-text);
            border: 1px solid var(--ui-border);
            font-weight: 600;
            font-size: 1rem;
            transition: border-color .22s ease, box-shadow .22s ease, background .22s ease;
        }

        .btn-ui-ghost:hover {
            color: var(--ui-brand);
            border-color: rgba(25, 115, 232, .4);
            box-shadow: 0 6px 16px rgba(25, 115, 232, .08);
        }

        .btn-lg-ui {
            min-height: 52px;
            padding: 14px 28px;
            font-size: 1.0625rem;
        }

        /* 移动端底部 Tab */
        .ui-mobile-tab {
            position: fixed;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 1080;
            display: none;
            height: calc(var(--ui-tab-height) + env(safe-area-inset-bottom, 0px));
            padding-bottom: env(safe-area-inset-bottom, 0px);
            background: rgba(255, 255, 255, .98);
            border-top: 1px solid var(--ui-border);
            box-shadow: 0 -4px 16px rgba(16, 24, 40, .05);
        }

        .ui-mobile-tab .tab-item {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 3px;
            color: var(--ui-text-secondary);
            font-size: .6875rem;
            font-weight: 500;
            line-height: 1.2;
        }

        .ui-mobile-tab .tab-item .bi {
            font-size: 1.35rem;
            line-height: 1;
        }

        .ui-mobile-tab .tab-item.active {
            color: var(--ui-brand);
            font-weight: 600;
        }

        @media (max-width: 991.98px) {
            .ui-header {
                height: 64px;
            }

            .main-nav,
            .header-cta {
                display: none;
            }

            .ui-mobile-tab {
                display: flex;
            }

            body {
                padding-bottom: calc(var(--ui-tab-height) + env(safe-area-inset-bottom, 0px) + 12px);
            }
        }

        /* Hero */
        .hero {
            position: relative;
            background: linear-gradient(180deg, rgba(246, 249, 255, .96), rgba(237, 245, 255, .82)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 74px 0 88px;
        }

        .hero-subtitle-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--ui-brand);
            background: #fff;
            border: 1px solid #DCE8F8;
            border-radius: var(--ui-radius-pill);
            padding: 7px 14px;
            font-size: .875rem;
            font-weight: 600;
            margin-bottom: 22px;
            box-shadow: 0 4px 10px rgba(16, 24, 40, .03);
        }

        .hero-title {
            font-size: clamp(2.6rem, 4.6vw, 3.6rem);
            font-weight: 800;
            line-height: 1.24;
            color: var(--ui-text);
            letter-spacing: .01em;
            margin-bottom: 22px;
        }

        .hero-title mark {
            background: transparent;
            color: var(--ui-brand);
            position: relative;
            padding: 0 4px;
        }

        .hero-desc {
            color: var(--ui-text-secondary);
            font-size: 1.125rem;
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 34px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 36px;
        }

        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 14px 24px;
            padding-top: 22px;
            border-top: 1px solid rgba(25, 115, 232, .12);
        }

        .hero-trust span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            color: var(--ui-text-secondary);
            font-size: .9375rem;
        }

        .hero-trust .bi {
            color: var(--ui-teal);
        }

        .hero-visual {
            position: relative;
            max-width: 540px;
            margin-left: auto;
        }

        .hero-screen-card {
            position: relative;
            border-radius: 22px;
            padding: 12px;
            background: #fff;
            box-shadow: var(--ui-shadow-lg);
            border: 1px solid #EAF0F8;
        }

        .hero-screen-card img {
            border-radius: 14px;
            width: 100%;
            height: auto;
            aspect-ratio: 4 / 3;
            object-fit: cover;
        }

        .hero-float-chip {
            position: absolute;
            bottom: 26px;
            left: -22px;
            background: #fff;
            border-radius: 14px;
            box-shadow: var(--ui-shadow-lg);
            border: 1px solid var(--ui-border);
            padding: 14px 18px;
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
            font-size: .9375rem;
        }

        .hero-float-chip .bi {
            color: var(--ui-brand);
            font-size: 1.4rem;
        }

        .hero-float-chip small {
            display: block;
            color: var(--ui-text-secondary);
            font-weight: 400;
            font-size: .8125rem;
        }

        @media (max-width: 991.98px) {
            .hero {
                padding: 48px 0 56px;
            }

            .hero-visual {
                margin-top: 48px;
                margin-left: 0;
                max-width: 100%;
            }

            .hero-float-chip {
                left: 8px;
            }
        }

        /* 核心价值非对称卡片 */
        .feature-card {
            background: #fff;
            border: 1px solid var(--ui-border);
            border-radius: var(--ui-radius-md);
            box-shadow: var(--ui-shadow);
            padding: 32px;
            height: 100%;
            transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
        }

        .feature-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--ui-shadow-lg);
            border-color: rgba(25, 115, 232, .3);
        }

        .feature-card.feature-card--tall {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .feature-icon {
            width: 50px;
            height: 50px;
            border-radius: 13px;
            background: rgba(25, 115, 232, .08);
            color: var(--ui-brand);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.35rem;
        }

        .feature-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin: 18px 0 10px;
            color: var(--ui-text);
        }

        .feature-card p {
            color: var(--ui-text-secondary);
            font-size: .9375rem;
            line-height: 1.8;
            margin-bottom: 18px;
        }

        .feature-mini-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .feature-mini-tags span {
            display: inline-flex;
            background: var(--ui-primary-soft);
            color: var(--ui-brand);
            border-radius: var(--ui-radius-pill);
            font-size: .8125rem;
            font-weight: 500;
            padding: 5px 12px;
            line-height: 1.4;
        }

        .ui-feature-tall-note {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-top: 20px;
            background: rgba(20, 184, 166, .07);
            border-left: 4px solid var(--ui-teal);
            border-radius: 12px;
            padding: 16px 18px;
            color: var(--ui-text-secondary);
            font-size: .9375rem;
        }

        .ui-feature-tall-note .bi {
            color: var(--ui-teal);
            font-size: 1.2rem;
        }

        /* 截图轮播 */
        .ui-visual-wrap {
            background: #fff;
            border-radius: var(--ui-radius-lg);
            border: 1px solid #ECF0F6;
            padding: 42px 30px 30px;
            box-shadow: var(--ui-shadow);
        }

        .ui-visual-wrap .section-desc {
            max-width: 640px;
        }

        .ui-carousel {
            padding: 20px 0 10px;
        }

        .ui-carousel .carousel-inner {
            border-radius: 20px;
        }

        .ui-carousel-item-inner {
            display: block;
        }

        .screen-card {
            background: #fff;
            border-radius: 18px;
            border: 1px solid var(--ui-border);
            box-shadow: 0 8px 24px rgba(16, 24, 40, .05);
            overflow: hidden;
            height: 100%;
            transition: box-shadow .25s ease;
        }

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

        .screen-shot {
            background: #EDF2F9;
            overflow: hidden;
        }

        .screen-shot img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
        }

        .screen-cap {
            padding: 16px 20px;
        }

        .screen-cap .screen-title {
            font-size: 1.0625rem;
            font-weight: 600;
            color: var(--ui-text);
            margin-bottom: 4px;
        }

        .screen-cap .screen-desc {
            color: var(--ui-text-secondary);
            font-size: .875rem;
            margin: 0;
        }

        .ui-carousel .carousel-control-prev,
        .ui-carousel .carousel-control-next {
            width: 44px;
            height: 44px;
            top: 44%;
            bottom: auto;
            transform: translateY(-50%);
            border-radius: 50%;
            background: #fff;
            border: 1px solid var(--ui-border);
            box-shadow: var(--ui-shadow);
            color: var(--ui-text);
            opacity: 1;
            font-size: 1.3rem;
            transition: background .2s ease, border-color .2s ease, color .2s ease;
        }

        .ui-carousel .carousel-control-prev {
            left: -8px;
        }

        .ui-carousel .carousel-control-next {
            right: -8px;
        }

        .ui-carousel .carousel-control-prev:hover,
        .ui-carousel .carousel-control-next:hover {
            color: var(--ui-brand);
            border-color: rgba(25, 115, 232, .45);
            background: #F8FBFF;
        }

        .ui-carousel .carousel-indicators {
            position: static;
            margin: 20px 0 0;
            display: flex;
            justify-content: center;
            gap: 8px;
        }

        .ui-carousel .carousel-indicators [data-bs-target] {
            width: 28px;
            height: 3px;
            border: 0;
            border-radius: 2px;
            background: #CBD5E1;
            opacity: 1;
            margin: 0;
            transition: background .2s ease;
        }

        .ui-carousel .carousel-indicators .active {
            background: var(--ui-brand);
        }

        @media (max-width: 767px) {
            .ui-visual-wrap {
                padding-left: 16px;
                padding-right: 16px;
            }

            .ui-carousel .carousel-control-prev {
                left: 4px;
            }

            .ui-carousel .carousel-control-next {
                right: 4px;
            }
        }

        /* 系统要求 */
        .sys-panel {
            background: #fff;
            border-radius: var(--ui-radius-md);
            border: 1px solid var(--ui-border);
            box-shadow: var(--ui-shadow);
            padding: 26px;
            height: 100%;
        }

        .sys-row {
            display: flex;
            gap: 18px;
            padding: 20px 0;
            border-bottom: 1px solid #EEF2F7;
        }

        .sys-row:last-child {
            border-bottom: 0;
            padding-bottom: 4px;
        }

        .sys-icon {
            width: 46px;
            height: 46px;
            flex-shrink: 0;
            border-radius: 13px;
            background: rgba(25, 115, 232, .08);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--ui-brand);
            font-size: 1.3rem;
        }

        .sys-meta h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 5px;
        }

        .sys-meta p {
            color: var(--ui-text-secondary);
            font-size: .875rem;
            margin: 0;
            line-height: 1.65;
        }

        .sys-badge {
            display: inline-block;
            background: rgba(25, 115, 232, .06);
            color: var(--ui-brand);
            border-radius: 5px;
            padding: 2px 8px;
            font-size: .75rem;
            font-weight: 600;
            margin-top: 3px;
        }

        .compat-panel {
            background: #fff;
            border: 1px solid rgba(25, 115, 232, .14);
            border-radius: var(--ui-radius-md);
            box-shadow: var(--ui-shadow);
            padding: 30px;
        }

        .compat-panel h3 {
            font-size: 1.125rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .compat-panel ul li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--ui-text-secondary);
            font-size: .9375rem;
            line-height: 1.7;
            padding: 8px 0;
        }

        .compat-panel ul li .bi {
            color: var(--ui-teal);
            font-size: 1.1rem;
            flex-shrink: 0;
            margin-top: 3px;
        }

        .compat-tip {
            margin-top: 20px;
            padding: 14px 16px;
            background: var(--ui-primary-soft);
            border-radius: 12px;
            color: var(--ui-text-secondary);
            font-size: .875rem;
            display: flex;
            gap: 10px;
        }

        .compat-tip .bi {
            color: var(--ui-brand);
            font-size: 1.1rem;
        }

        /* 评价墙 */
        .ui-review-section {
            background: rgba(25, 115, 232, .045);
            border-top: 1px solid rgba(25, 115, 232, .07);
            border-bottom: 1px solid rgba(25, 115, 232, .07);
        }

        .review-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 20px;
            align-items: start;
        }

        .review-card {
            background: #fff;
            border: 1px solid #E7EDF6;
            border-radius: var(--ui-radius-md);
            box-shadow: 0 1px 2px rgba(16, 24, 40, .03), 0 6px 20px rgba(16, 24, 40, .04);
            padding: 26px;
            transition: box-shadow .25s ease, transform .25s ease;
        }

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

        .stars {
            display: flex;
            gap: 2px;
            color: #F5B342;
            font-size: .9375rem;
            margin-bottom: 12px;
        }

        .review-card blockquote {
            margin: 0 0 18px;
            color: var(--ui-text);
            font-size: .9375rem;
            line-height: 1.8;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .review-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(25, 115, 232, .1);
            color: var(--ui-brand);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            font-size: .8125rem;
        }

        .review-user strong {
            display: block;
            font-size: .875rem;
            color: var(--ui-text);
        }

        .review-user small {
            color: var(--ui-text-secondary);
            font-size: .75rem;
        }

        @media (max-width: 767.98px) {
            .review-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 最新信息 / CMS 列表 */
        .news-row {
            display: flex;
            align-items: center;
            gap: 20px;
            background: #fff;
            border: 1px solid var(--ui-border);
            border-radius: var(--ui-radius-md);
            box-shadow: 0 1px 2px rgba(16, 24, 40, .02), 0 4px 14px rgba(16, 24, 40, .03);
            padding: 20px 24px;
            margin-bottom: 14px;
            transition: border-color .22s ease, box-shadow .22s ease, transform .22s ease;
        }

        .news-row:hover {
            border-color: rgba(25, 115, 232, .35);
            box-shadow: var(--ui-shadow-lg);
            transform: translateY(-1px);
        }

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

        .news-main h3 {
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--ui-text);
            line-height: 1.5;
            margin: 6px 0 4px;
        }

        .news-row:hover .news-main h3 {
            color: var(--ui-brand);
        }

        .news-main p {
            color: var(--ui-text-secondary);
            font-size: .9375rem;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px 16px;
            margin-bottom: 4px;
        }

        .ui-pill {
            display: inline-block;
            background: rgba(25, 115, 232, .08);
            color: var(--ui-brand);
            font-size: .8125rem;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: var(--ui-radius-pill);
        }

        .ui-pill-teal {
            background: rgba(20, 184, 166, .1);
            color: #0E9C8E;
        }

        .news-time {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            color: var(--ui-text-light);
            font-size: .8125rem;
        }

        .news-arrow {
            width: 40px;
            height: 40px;
            flex-shrink: 0;
            border-radius: 50%;
            border: 1px solid var(--ui-border);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--ui-brand);
            font-size: 1.15rem;
            background: #fff;
            transition: background .2s ease, color .2s ease, border-color .2s ease;
        }

        .news-row:hover .news-arrow {
            background: var(--ui-brand);
            border-color: var(--ui-brand);
            color: #fff;
        }

        .empty-tip {
            background: #fff;
            border: 1px dashed #CBD8E8;
            border-radius: var(--ui-radius-md);
            padding: 34px;
            text-align: center;
            color: var(--ui-text-secondary);
        }

        /* FAQ */
        .ui-faq {
            background: #fff;
            border-radius: var(--ui-radius-lg);
            padding: 32px;
            border: 1px solid #E9EFF6;
            box-shadow: var(--ui-shadow);
        }

        .ui-faq .accordion-item {
            border: 0;
            border-bottom: 1px solid #EDF1F6;
            background: transparent;
            margin-bottom: 0;
        }

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

        .ui-faq .accordion-button {
            background: transparent;
            border: 0;
            box-shadow: none;
            color: var(--ui-text);
            font-size: 1.0625rem;
            font-weight: 600;
            padding: 22px 42px 22px 18px;
            letter-spacing: .01em;
        }

        .ui-faq .accordion-button:not(.collapsed) {
            color: var(--ui-brand);
            background: transparent;
        }

        .ui-faq .accordion-button:focus {
            box-shadow: none;
        }

        .ui-faq .accordion-button::after {
            background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%2394A3B8' class='bi bi-plus-lg' viewBox='0 0 16 16'%3E%3Cpath fill-rule='evenodd' d='M8 2a.75.75 0 0 1 .75.75v4.5h4.5a.75.75 0 0 1 0 1.5h-4.5v4.5a.75.75 0 0 1-1.5 0v-4.5h-4.5a.75.75 0 0 1 0-1.5h4.5v-4.5A.75.75 0 0 1 8 2Z'/%3E%3C/svg%3E") center/16px no-repeat;
            transition: transform .25s ease;
        }

        .ui-faq .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%231973E8' class='bi bi-plus-lg' viewBox='0 0 16 16'%3E%3Cpath fill-rule='evenodd' d='M8 2a.75.75 0 0 1 .75.75v4.5h4.5a.75.75 0 0 1 0 1.5h-4.5v4.5a.75.75 0 0 1-1.5 0v-4.5h-4.5a.75.75 0 0 1 0-1.5h4.5v-4.5A.75.75 0 0 1 8 2Z'/%3E%3C/svg%3E") center/16px no-repeat;
        }

        .ui-faq .accordion-body {
            padding: 0 18px 20px;
            color: var(--ui-text-secondary);
            font-size: .9375rem;
            line-height: 1.8;
        }

        @media (max-width: 575.98px) {
            .ui-faq {
                padding: 12px 10px;
            }
        }

        /* 下载行动区 */
        .ui-download-block {
            border-radius: var(--ui-radius-lg);
            background: #fff;
            border: 1px solid #E5EDF7;
            box-shadow: var(--ui-shadow);
            padding: 64px 32px;
            text-align: center;
        }

        .ui-download-block .section-title {
            margin-bottom: 12px;
        }

        .ui-download-block .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        .platform-group {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
            max-width: 960px;
            margin: 42px auto 0;
        }

        .platform-card {
            display: flex;
            align-items: center;
            gap: 16px;
            text-align: left;
            background: #fff;
            border: 1px solid var(--ui-border);
            border-radius: 14px;
            padding: 18px;
            box-shadow: 0 1px 2px rgba(16, 24, 40, .03), 0 4px 14px rgba(16, 24, 40, .04);
            color: var(--ui-text);
            transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
        }

        .platform-card:hover {
            transform: translateY(-2px);
            border-color: rgba(25, 115, 232, .35);
            box-shadow: var(--ui-shadow-lg);
            color: var(--ui-text);
        }

        .platform-icon {
            width: 50px;
            height: 50px;
            border-radius: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            flex-shrink: 0;
            background: rgba(25, 115, 232, .08);
            color: var(--ui-brand);
        }

        .platform-card strong {
            display: block;
            font-size: 1rem;
            font-weight: 700;
            color: var(--ui-text);
        }

        .platform-card small {
            color: var(--ui-text-secondary);
            font-size: .8125rem;
        }

        .platform-card .bi-chevron-right {
            margin-left: auto;
            color: var(--ui-text-light);
        }

        @media (max-width: 991.98px) {
            .platform-group {
                grid-template-columns: 1fr;
                max-width: 520px;
            }
        }

        @media (max-width: 575.98px) {
            .ui-download-block {
                padding: 42px 16px;
            }
        }

        /* 页脚 */
        .ui-footer {
            background: #F0F4F9;
            margin-top: 24px;
            padding: 64px 0 30px;
        }

        .ui-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--ui-text);
            font-weight: 800;
            font-size: 1.35rem;
            margin-bottom: 14px;
        }

        .ui-footer .footer-brand .brand-mark {
            width: 36px;
            height: 36px;
            border-radius: 10px;
        }

        .ui-footer .footer-desc {
            color: var(--ui-text-secondary);
            font-size: .9375rem;
            max-width: 360px;
            margin-bottom: 22px;
        }

        .footer-title {
            font-size: .875rem;
            font-weight: 700;
            color: var(--ui-text);
            margin-bottom: 20px;
            letter-spacing: .08em;
        }

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

        .footer-link-list a {
            color: var(--ui-text-secondary);
            font-size: .9375rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .footer-link-list a:hover {
            color: var(--ui-brand);
        }

        .footer-bottom {
            border-top: 1px solid rgba(16, 24, 40, .08);
            margin-top: 48px;
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            color: var(--ui-text-secondary);
            font-size: .875rem;
        }

        .footer-bottom a {
            color: var(--ui-text-secondary);
        }

        .footer-bottom a:hover {
            color: var(--ui-brand);
        }

        @media (max-width: 991.98px) {
            .ui-footer {
                padding: 48px 0 24px;
            }

            .footer-brand-col {
                margin-bottom: 32px;
            }
        }

/* roulang page: category1 */
:root {
            --ui-primary: #1973E8;
            --ui-primary-dark: #0E5BC4;
            --ui-teal: #14B8A6;
            --ui-orange: #F97316;
            --ui-bg: #F6F8FB;
            --ui-card: #FFFFFF;
            --ui-text: #132033;
            --ui-muted: #64748B;
            --ui-border: #E5EAF0;
            --ui-primary-tint: rgba(25, 115, 232, .06);
            --ui-tint-deep: rgba(25, 115, 232, .11);
            --ui-radius: 16px;
            --ui-radius-sm: 10px;
            --ui-radius-lg: 24px;
            --ui-shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 6px 20px rgba(16, 24, 40, .06);
            --ui-shadow-hover: 0 4px 8px rgba(16, 24, 40, .06), 0 16px 30px rgba(16, 24, 40, .10);
            --ui-font-family: Inter, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --ui-spacer: 88px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--ui-font-family);
            background: var(--ui-bg);
            color: var(--ui-text);
            font-size: 1rem;
            line-height: 1.75;
            padding-bottom: 64px;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease, background .2s ease, box-shadow .2s ease, transform .2s ease;
        }

        a:hover {
            color: inherit;
        }

        img {
            max-width: 100%;
            display: block;
            border-radius: 12px;
        }

        p {
            margin-top: 0;
        }

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

        .container {
            max-width: 1200px;
        }

        .ui-card {
            background: var(--ui-card);
            border-radius: var(--ui-radius);
            border: 1px solid rgba(16, 24, 40, .04);
            box-shadow: var(--ui-shadow);
            transition: box-shadow .22s ease, transform .22s ease, border-color .22s ease;
        }

        .ui-card-hover:hover {
            box-shadow: var(--ui-shadow-hover);
            transform: translateY(-3px);
            border-color: rgba(25, 115, 232, .18);
        }

        /* Header */
        .ui-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            height: 72px;
            background: rgba(255, 255, 255, .96);
            border-bottom: 1px solid var(--ui-border);
        }

        .ui-header-inner {
            display: flex;
            align-items: center;
            height: 72px;
            justify-content: space-between;
            gap: 28px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            min-width: max-content;
        }

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 11px;
            background: var(--ui-primary);
            box-shadow: 0 6px 16px rgba(25, 115, 232, .28);
        }

        .brand-text {
            font-size: 1.28rem;
            font-weight: 800;
            color: var(--ui-text);
            letter-spacing: .01em;
            white-space: nowrap;
        }

        .brand-text span {
            color: var(--ui-primary);
            margin-left: 2px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 34px;
            margin-left: auto;
        }

        .nav-link-item {
            font-size: .96rem;
            font-weight: 600;
            color: var(--ui-muted);
            position: relative;
            padding: 8px 2px;
            white-space: nowrap;
        }

        .nav-link-item:hover {
            color: var(--ui-text);
        }

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

        .nav-link-item.active::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: 2px;
            transform: translateX(-50%);
            width: 18px;
            height: 3px;
            border-radius: 99px;
            background: var(--ui-primary);
        }

        .header-cta {
            display: flex;
            align-items: center;
        }

        .btn-ui-main {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .55rem;
            background: var(--ui-primary);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            line-height: 1;
            padding: .85rem 1.5rem;
            border-radius: var(--ui-radius-sm);
            border: 1px solid transparent;
            box-shadow: 0 6px 18px rgba(25, 115, 232, .2);
            transition: background .2s ease, box-shadow .2s ease, transform .2s ease, color .2s;
            cursor: pointer;
            min-height: 44px;
        }

        .btn-ui-main:hover {
            background: var(--ui-primary-dark);
            box-shadow: 0 12px 28px rgba(25, 115, 232, .28);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-ui-main i {
            font-size: 1.12rem;
        }

        .btn-ui-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            min-height: 50px;
            padding: .8rem 1.55rem;
            border-radius: var(--ui-radius-sm);
            background: #fff;
            border: 1px solid var(--ui-border);
            color: var(--ui-text);
            font-weight: 600;
            font-size: 1rem;
            box-shadow: 0 1px 2px rgba(16, 24, 40, .03);
            transition: all .2s ease;
        }

        .btn-ui-outline:hover {
            border-color: rgba(25, 115, 232, .38);
            color: var(--ui-primary);
            box-shadow: 0 8px 22px rgba(25, 115, 232, .08);
            transform: translateY(-2px);
        }

        /* Mobile bottom nav */
        .mobile-bottom-nav {
            display: none;
            position: fixed;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 1040;
            height: 64px;
            background: #fff;
            border-top: 1px solid var(--ui-border);
            align-items: stretch;
            box-shadow: 0 -6px 18px rgba(16, 24, 40, .05);
            padding-bottom: env(safe-area-inset-bottom);
        }

        .mobile-nav-item {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 3px;
            font-size: 11px;
            color: var(--ui-muted);
            font-weight: 500;
            border-radius: 0;
            min-width: 0;
        }

        .mobile-nav-item i {
            font-size: 1.25rem;
            line-height: 1;
        }

        .mobile-nav-item.active {
            color: var(--ui-primary);
        }

        .mobile-nav-item.active i {
            color: var(--ui-primary);
        }

        /* Footer */
        .ui-footer {
            background: #F0F4F9;
            border-top: 1px solid rgba(229, 234, 240, .8);
            padding: 68px 0 28px;
            margin-top: 100px;
        }

        .footer-brand-col {
            padding-right: 42px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--ui-text);
        }

        .footer-brand .brand-mark {
            width: 34px;
            height: 34px;
        }

        .footer-desc {
            color: var(--ui-muted);
            max-width: 390px;
            margin: 18px 0 18px;
            font-size: .95rem;
            line-height: 1.75;
        }

        .footer-title {
            font-size: .98rem;
            font-weight: 700;
            color: var(--ui-text);
            margin-bottom: 18px;
            letter-spacing: .01em;
        }

        .footer-link-list li a {
            display: inline-block;
            color: #475569;
            font-size: .92rem;
            line-height: 2.15;
            transition: color .2s ease, transform .2s ease;
        }

        .footer-link-list li a:hover {
            color: var(--ui-primary);
            transform: translateX(3px);
        }

        .footer-bottom {
            margin-top: 44px;
            padding-top: 22px;
            border-top: 1px solid rgba(229, 234, 240, .9);
            display: flex;
            justify-content: space-between;
            gap: 18px;
            flex-wrap: wrap;
            color: var(--ui-muted);
            font-size: .88rem;
        }

        .hero-trust {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px 18px;
            color: var(--ui-muted);
            font-size: .88rem;
            border-top: 1px solid var(--ui-border);
            padding-top: 14px;
        }

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

        .hero-trust i {
            color: var(--ui-primary);
            font-size: 1rem;
        }

        /* Page hero */
        .subpage-hero {
            position: relative;
            padding: 58px 0 52px;
            background:
                linear-gradient(180deg, rgba(255, 255, 255, .97) 0%, rgba(246, 248, 251, .9) 100%),
                url("/assets/images/backpic/back-1.png") center 20% / cover no-repeat;
            border-bottom: 1px solid rgba(229, 234, 240, .8);
        }

        .crumb-nav {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: .9rem;
            color: var(--ui-muted);
            margin-bottom: 28px;
        }

        .crumb-nav a {
            color: var(--ui-muted);
            transition: color .2s;
        }

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

        .crumb-current {
            color: var(--ui-text);
            font-weight: 600;
        }

        .hero-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--ui-primary-tint);
            color: var(--ui-primary);
            font-weight: 600;
            font-size: .84rem;
            padding: .35rem .9rem;
            border-radius: 99px;
            margin-bottom: 16px;
        }

        .hero-kicker .dot-pulse {
            width: 7px;
            height: 7px;
            background: var(--ui-primary);
            border-radius: 50%;
            position: relative;
        }

        .subpage-hero h1 {
            font-size: clamp(2.2rem, 4vw, 3rem);
            font-weight: 800;
            letter-spacing: .01em;
            margin: 0 0 16px;
            line-height: 1.2;
            max-width: 760px;
        }

        .subpage-hero .hero-lead {
            color: var(--ui-muted);
            font-size: 1.09rem;
            line-height: 1.85;
            max-width: 680px;
            margin-bottom: 24px;
        }

        .hero-tags {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px 14px;
        }

        .ui-tag {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: #fff;
            border: 1px solid var(--ui-border);
            color: #475569;
            font-size: .86rem;
            line-height: 1;
            padding: .5rem .85rem;
            border-radius: 99px;
            box-shadow: 0 1px 2px rgba(16, 24, 40, .03);
        }

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

        /* Layout helpers */
        .ui-section {
            padding: 84px 0 0;
        }

        .ui-section-bottom {
            padding-bottom: 84px;
        }

        .section-head {
            margin-bottom: 48px;
            max-width: 780px;
        }

        .section-head .eyebrow {
            display: inline-flex;
            align-items: center;
            color: var(--ui-primary);
            font-weight: 700;
            font-size: .86rem;
            letter-spacing: .04em;
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        .section-head .eyebrow::before {
            content: "";
            width: 18px;
            height: 3px;
            border-radius: 99px;
            background: var(--ui-primary);
            margin-right: 9px;
            display: inline-block;
        }

        .section-head h2 {
            font-size: clamp(1.7rem, 2.6vw, 2.2rem);
            margin: 0 0 12px;
            font-weight: 800;
            letter-spacing: .01em;
            line-height: 1.3;
        }

        .section-head p {
            color: var(--ui-muted);
            font-size: 1rem;
            line-height: 1.8;
            margin: 0;
        }

        .section-cta-head {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            gap: 24px;
            margin-bottom: 36px;
            flex-wrap: wrap;
        }

        /* Focus event */
        .event-main-card {
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .event-media {
            position: relative;
            overflow: hidden;
            border-radius: 0;
            display: block;
        }

        .event-media img {
            width: 100%;
            height: 230px;
            object-fit: cover;
            border-radius: 0;
        }

        .event-media-tag {
            position: absolute;
            left: 16px;
            top: 16px;
            background: rgba(255, 255, 255, .94);
            color: var(--ui-primary);
            font-size: .8rem;
            font-weight: 700;
            padding: .25rem .7rem;
            border-radius: 99px;
            box-shadow: 0 4px 10px rgba(16, 24, 40, .08);
        }

        .event-body {
            padding: 24px 26px 28px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .badge-line {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .pill {
            display: inline-flex;
            align-items: center;
            font-size: .78rem;
            font-weight: 700;
            padding: .24rem .7rem;
            border-radius: 99px;
            line-height: 1.4;
        }

        .pill-red {
            background: rgba(249, 115, 22, .1);
            color: #C2410C;
        }

        .pill-blue {
            background: rgba(25, 115, 232, .1);
            color: var(--ui-primary);
        }

        .pill-ghost {
            background: var(--ui-bg);
            color: #475569;
        }

        .event-body h3 {
            font-size: 1.35rem;
            font-weight: 700;
            margin: 0 0 12px;
            color: var(--ui-text);
            letter-spacing: .01em;
            line-height: 1.45;
        }

        .event-body p {
            color: var(--ui-muted);
            font-size: .98rem;
            line-height: 1.85;
            margin-bottom: 22px;
        }

        .event-meta-line {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px 22px;
            color: var(--ui-muted);
            font-size: .88rem;
            margin-top: auto;
            margin-bottom: 16px;
        }

        .event-meta-line span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .ui-link-more {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            color: var(--ui-primary);
            font-weight: 600;
            font-size: .96rem;
        }

        .ui-link-more i {
            transition: transform .2s ease;
        }

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

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

        .side-entry-card {
            display: flex;
            flex-direction: column;
            height: 100%;
            padding: 24px 24px 20px;
            overflow: hidden;
        }

        .side-entry-card .entry-icon {
            width: 42px;
            height: 42px;
            background: var(--ui-primary-tint);
            border-radius: 12px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--ui-primary);
            font-size: 1.25rem;
            margin-bottom: 18px;
        }

        .side-entry-card h3 {
            font-size: 1.14rem;
            font-weight: 700;
            line-height: 1.5;
            color: var(--ui-text);
            margin-bottom: 8px;
        }

        .side-entry-card p {
            color: var(--ui-muted);
            font-size: .92rem;
            line-height: 1.7;
            margin-bottom: 18px;
        }

        .card-footer-link {
            margin-top: auto;
        }

        /* Schedule panel */
        .schedule-panel {
            padding: 34px 0 12px;
            overflow: hidden;
        }

        .panel-title-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding: 0 34px 18px;
            border-bottom: 1px solid var(--ui-border);
        }

        .panel-title-row h3 {
            font-size: 1.22rem;
            font-weight: 800;
            margin: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .panel-title-row h3 i {
            color: var(--ui-primary);
        }

        .panel-note {
            color: var(--ui-muted);
            font-size: .85rem;
        }

        .schedule-row {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 18px 34px;
            border-bottom: 1px solid rgba(229, 234, 240, .8);
            transition: background .2s ease;
        }

        .schedule-row:hover {
            background: rgba(25, 115, 232, .025);
        }

        .schedule-date {
            color: var(--ui-text);
            font-weight: 800;
            font-size: .92rem;
            min-width: 100px;
        }

        .schedule-date small {
            display: block;
            color: var(--ui-muted);
            font-weight: 500;
            font-size: .78rem;
        }

        .schedule-match {
            flex: 1;
            min-width: 0;
        }

        .schedule-match .match-project {
            font-size: .78rem;
            color: var(--ui-muted);
            display: block;
            margin-bottom: 1px;
        }

        .schedule-match strong {
            font-size: 1rem;
            font-weight: 700;
            color: var(--ui-text);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .schedule-stage {
            color: var(--ui-muted);
            font-size: .86rem;
            width: 120px;
        }

        .schedule-status {
            text-align: right;
            width: 84px;
        }

        .status-notify {
            color: var(--ui-primary);
            font-size: .82rem;
            font-weight: 600;
            background: var(--ui-primary-tint);
            border-radius: 99px;
            padding: .2rem .65rem;
            white-space: nowrap;
        }

        .status-live {
            color: var(--ui-orange);
            font-size: .82rem;
            font-weight: 700;
            background: rgba(249, 115, 22, .1);
            border-radius: 99px;
            padding: .2rem .65rem;
            white-space: nowrap;
        }

        .schedule-action {
            color: var(--ui-muted);
            font-size: .9rem;
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: color .2s ease;
            white-space: nowrap;
        }

        .schedule-action:hover {
            color: var(--ui-primary);
        }

        /* Feature entries */
        .feature-entry-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 26px;
            margin-top: 6px;
        }

        .feature-entry {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 26px;
            background: #fff;
            border: 1px solid rgba(229, 234, 240, .9);
            border-radius: var(--ui-radius);
            box-shadow: var(--ui-shadow);
            transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
        }

        .feature-entry:hover {
            transform: translateY(-3px);
            border-color: rgba(25, 115, 232, .18);
            box-shadow: var(--ui-shadow-hover);
        }

        .feature-entry .entry-icon {
            width: 50px;
            height: 50px;
            border-radius: 14px;
            background: var(--ui-primary-tint);
            color: var(--ui-primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.45rem;
            flex-shrink: 0;
        }

        .feature-entry:nth-child(2) .entry-icon {
            background: rgba(20, 184, 166, .1);
            color: #0D9488;
        }

        .feature-entry:nth-child(3) .entry-icon {
            background: rgba(249, 115, 22, .1);
            color: #D05B0D;
        }

        .feature-entry:nth-child(4) .entry-icon {
            background: rgba(25, 115, 232, .1);
            color: var(--ui-primary);
        }

        .feature-entry-main {
            flex: 1;
            min-width: 0;
        }

        .feature-entry-main strong {
            display: block;
            font-size: 1.12rem;
            font-weight: 700;
            color: var(--ui-text);
            margin-bottom: 5px;
        }

        .feature-entry-main small {
            color: var(--ui-muted);
            font-size: .9rem;
            line-height: 1.7;
            display: block;
        }

        .feature-arrow {
            color: #CBD5E1;
            font-size: 1.25rem;
            align-self: center;
            margin-left: 4px;
            transition: color .2s ease, transform .2s ease;
        }

        .feature-entry:hover .feature-arrow {
            color: var(--ui-primary);
            transform: translateX(4px);
        }

        /* Discussion topic */
        .topic-card {
            background: rgba(25, 115, 232, .045);
            border: 1px solid rgba(25, 115, 232, .12);
            border-radius: var(--ui-radius-lg);
            padding: 30px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
        }

        .topic-card-left {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            max-width: 680px;
        }

        .topic-icon {
            width: 48px;
            height: 48px;
            background: #fff;
            color: var(--ui-primary);
            border-radius: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 2px 6px rgba(16, 24, 40, .04);
        }

        .topic-text h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .topic-text p {
            color: var(--ui-muted);
            font-size: .94rem;
            margin: 0;
        }

        .topic-hash-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 12px;
        }

        .hash-item {
            display: inline-flex;
            align-items: center;
            background: #fff;
            border: 1px solid var(--ui-border);
            box-shadow: 0 1px 2px rgba(16, 24, 40, .03);
            color: #334155;
            font-size: .82rem;
            padding: .35rem .8rem;
            border-radius: 99px;
            transition: color .2s, border-color .2s;
        }

        .hash-item:hover {
            color: var(--ui-primary);
            border-color: rgba(25, 115, 232, .24);
        }

        .hash-item::before {
            content: "#";
            color: var(--ui-primary);
            margin-right: 3px;
            font-weight: 700;
        }

        .topic-arrow {
            flex-shrink: 0;
        }

        .btn-ui-soft {
            display: inline-flex;
            align-items: center;
            gap: .5rem;
            background: var(--ui-primary);
            color: #fff;
            font-weight: 600;
            font-size: .96rem;
            line-height: 1;
            padding: .82rem 1.4rem;
            border-radius: var(--ui-radius-sm);
            border: 1px solid var(--ui-primary);
            transition: all .2s ease;
        }

        .btn-ui-soft:hover {
            background: var(--ui-primary-dark);
            border-color: var(--ui-primary-dark);
            color: #fff;
            box-shadow: 0 12px 24px rgba(25, 115, 232, .22);
        }

        /* Steps */
        .guide-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
            margin-top: 8px;
        }

        .guide-step {
            padding: 28px 24px 26px;
            background: #fff;
            border-radius: var(--ui-radius);
            border: 1px solid rgba(229, 234, 240, .9);
            box-shadow: var(--ui-shadow);
            position: relative;
            overflow: hidden;
            transition: transform .22s ease, box-shadow .22s ease;
        }

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

        .guide-num {
            color: var(--ui-primary);
            font-size: 2rem;
            font-weight: 800;
            line-height: 1;
            display: block;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .guide-step h3 {
            font-size: 1.1rem;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 10px;
        }

        .guide-step p {
            color: var(--ui-muted);
            font-size: .9rem;
            line-height: 1.75;
            margin: 0;
        }

        /* FAQ */
        .faq-panel {
            background: #fff;
            border: 1px solid rgba(229, 234, 240, .9);
            box-shadow: var(--ui-shadow);
            border-radius: var(--ui-radius);
            padding: 18px 30px 8px;
        }

        .faq-item {
            border-bottom: 1px solid rgba(229, 234, 240, .9);
        }

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

        .faq-button {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            background: transparent;
            border: 0;
            text-align: left;
            font-size: 1.02rem;
            font-weight: 700;
            color: var(--ui-text);
            padding: 21px 0;
            cursor: pointer;
            gap: 20px;
            transition: color .2s ease;
        }

        .faq-button i {
            font-size: 1.05rem;
            color: var(--ui-muted);
            transition: transform .2s ease, color .2s ease;
            flex-shrink: 0;
        }

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

        .faq-button[aria-expanded="true"] {
            color: var(--ui-primary);
        }

        .faq-button[aria-expanded="true"] i {
            transform: rotate(45deg);
            color: var(--ui-primary);
        }

        .faq-body {
            color: var(--ui-muted);
            font-size: .95rem;
            line-height: 1.85;
            padding: 0 0 22px;
        }

        .faq-body p {
            margin: 0;
        }

        /* CTA panel */
        .cta-panel {
            border-radius: var(--ui-radius-lg);
            background: #fff;
            border: 1px solid rgba(229, 234, 240, .9);
            box-shadow: var(--ui-shadow);
            padding: 48px 50px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 34px;
            flex-wrap: wrap;
        }

        .cta-copy {
            max-width: 620px;
        }

        .cta-copy h2 {
            font-size: clamp(1.6rem, 2.9vw, 2.2rem);
            font-weight: 800;
            letter-spacing: .01em;
            line-height: 1.4;
            margin: 0 0 10px;
        }

        .cta-copy p {
            color: var(--ui-muted);
            font-size: 1rem;
            line-height: 1.8;
            margin-bottom: 0;
        }

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

        /* Focused CTA */
        .callout-banner {
            background: var(--ui-primary);
            border-radius: var(--ui-radius-lg);
            padding: 38px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
            color: #fff;
            box-shadow: 0 18px 42px rgba(25, 115, 232, .24);
            position: relative;
            overflow: hidden;
        }

        .callout-banner::after {
            content: "";
            position: absolute;
            right: -70px;
            top: -80px;
            width: 260px;
            height: 260px;
            background: rgba(255, 255, 255, .08);
            border-radius: 50%;
        }

        .callout-banner h2 {
            font-size: clamp(1.45rem, 2.4vw, 2rem);
            font-weight: 800;
            margin: 0 0 10px;
            color: #fff;
        }

        .callout-banner p {
            color: rgba(255, 255, 255, .9);
            font-size: 1rem;
            line-height: 1.75;
            margin: 0;
            max-width: 640px;
        }

        .btn-ui-light {
            display: inline-flex;
            align-items: center;
            gap: .5rem;
            background: #fff;
            color: var(--ui-primary);
            padding: .95rem 1.7rem;
            border-radius: var(--ui-radius-sm);
            font-weight: 700;
            font-size: 1rem;
            border: 0;
            box-shadow: 0 8px 22px rgba(16, 24, 40, .12);
            transition: transform .2s ease, box-shadow .2s ease;
            position: relative;
            z-index: 2;
        }

        .btn-ui-light:hover {
            transform: translateY(-2px);
            box-shadow: 0 14px 30px rgba(16, 24, 40, .16);
            color: var(--ui-primary-dark);
        }

        /* Responsive */
        @media (min-width: 992px) {
            body {
                padding-bottom: 0;
            }

            .mobile-bottom-nav {
                display: none !important;
            }

            .ui-header .main-nav,
            .ui-header .header-cta {
                display: flex;
            }
        }

        @media (max-width: 991.98px) {
            .ui-header .main-nav,
            .ui-header .header-cta {
                display: none !important;
            }

            .ui-header {
                height: 64px;
            }

            .ui-header-inner {
                height: 64px;
            }

            .mobile-bottom-nav {
                display: flex;
            }

            .ui-footer {
                padding-bottom: 90px;
                margin-top: 70px;
            }

            .ui-section {
                padding-top: 62px;
            }

            .ui-section-bottom {
                padding-bottom: 62px;
            }

            .subpage-hero {
                padding: 38px 0 40px;
            }
        }

        @media (max-width: 767.98px) {
            .subpage-hero h1 {
                font-size: 2rem;
            }

            .feature-entry-list {
                grid-template-columns: 1fr;
                gap: 16px;
            }

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

            .schedule-row {
                flex-wrap: wrap;
                padding: 16px 18px;
                gap: 10px;
            }

            .schedule-date,
            .schedule-stage {
                width: auto;
            }

            .schedule-status {
                width: auto;
                text-align: left;
            }

            .schedule-row {
                align-items: flex-start;
            }

            .event-body {
                padding: 20px;
            }

            .section-head {
                margin-bottom: 28px;
            }

            .topic-card {
                padding: 22px;
            }

            .cta-panel {
                padding: 32px 26px;
            }

            .faq-panel {
                padding: 6px 20px 2px;
            }

            .btn-ui-main,
            .btn-ui-soft {
                min-height: 44px;
                padding: .75rem 1.2rem;
            }

            .callout-banner {
                padding: 30px 24px;
            }
        }

        @media (max-width: 520px) {
            .guide-steps {
                grid-template-columns: 1fr;
            }

            .feature-entry {
                padding: 20px;
                gap: 14px;
            }

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

            .ui-section {
                padding-top: 46px;
            }
        }

/* roulang page: article */
:root {
            --c-blue: #1973E8;
            --c-blue-dark: #0E5BC4;
            --c-teal: #14B8A6;
            --c-orange: #F97316;
            --c-bg: #F6F8FB;
            --c-card: #FFFFFF;
            --c-text: #132033;
            --c-text-light: #64748A;
            --c-border: #E5EAF0;
            --c-soft-blue: rgba(25, 115, 232, .06);
            --font-base: "Inter", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --shadow-sm: 0 1px 2px rgba(16, 24, 40, .04), 0 6px 20px rgba(16, 24, 40, .06);
            --shadow-md: 0 4px 8px rgba(16, 24, 40, .06), 0 16px 30px rgba(16, 24, 40, .10);
            --radius-btn: 10px;
            --radius-card: 16px;
            --radius-lg: 24px;
            --header-h: 72px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            padding: 0;
            background: var(--c-bg);
            color: var(--c-text);
            font-family: var(--font-base);
            font-size: 1rem;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body.modal-open,
        body.has-open-nav {
            overflow-x: hidden;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--c-text);
            margin: 0 0 .55em;
            font-weight: 700;
            line-height: 1.3;
        }

        a {
            color: var(--c-blue);
            text-decoration: none;
        }

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

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

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

        .container {
            max-width: 1200px;
        }

        .ui-header {
            position: sticky;
            top: 0;
            z-index: 1040;
            height: var(--header-h);
            background: rgba(255, 255, 255, .97);
            border-bottom: 1px solid rgba(229, 234, 240, .75);
            transition: box-shadow .25s ease, border-color .25s ease;
        }

        .ui-header.is-scrolled {
            border-bottom-color: transparent;
            box-shadow: 0 8px 28px rgba(16, 24, 40, .06);
        }

        .ui-header-inner {
            height: var(--header-h);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: .65rem;
            flex-shrink: 0;
            text-decoration: none;
        }

        .brand-mark {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--c-blue);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 6px 16px rgba(25, 115, 232, .22);
        }

        .brand-text {
            color: var(--c-text);
            font-size: 1.375rem;
            font-weight: 800;
            letter-spacing: .01em;
            white-space: nowrap;
        }

        .brand-text span {
            color: var(--c-blue);
        }

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

        .nav-link-item {
            position: relative;
            display: inline-flex;
            align-items: center;
            color: #334155;
            font-size: .968rem;
            font-weight: 500;
            padding: .5rem .1rem;
            text-decoration: none;
            transition: color .2s ease;
        }

        .nav-link-item:hover {
            color: var(--c-blue-dark);
        }

        .nav-link-item.active {
            color: var(--c-blue);
            font-weight: 600;
        }

        .nav-link-item.active::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 3px;
            border-radius: 99px;
            background: var(--c-blue);
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            flex-shrink: 0;
        }

        .btn-ui-main {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            min-height: 48px;
            padding: .65rem 1.35rem;
            border-radius: var(--radius-btn);
            background: var(--c-blue);
            border: 1px solid var(--c-blue);
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            line-height: 1.2;
            text-decoration: none;
            white-space: nowrap;
            box-shadow: 0 6px 18px rgba(25, 115, 232, .16);
            transition: background .2s ease, border-color .2s ease, color .2s ease, transform .2s ease, box-shadow .2s ease;
        }

        .btn-ui-main:hover {
            background: var(--c-blue-dark);
            border-color: var(--c-blue-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 12px 26px rgba(25, 115, 232, .22);
        }

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

        .header-cta .btn-ui-main {
            min-height: 40px;
            padding: .45rem 1rem;
            font-size: .925rem;
        }

        .btn-ui-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            min-height: 46px;
            padding: .6rem 1.25rem;
            border-radius: var(--radius-btn);
            background: #fff;
            border: 1px solid #D5DEE8;
            color: var(--c-text);
            font-size: .95rem;
            font-weight: 600;
            text-decoration: none;
            transition: all .2s ease;
        }

        .btn-ui-ghost:hover {
            border-color: var(--c-blue);
            color: var(--c-blue);
            background: rgba(25, 115, 232, .04);
        }

        .btn-ui-ghost:active {
            transform: scale(.99);
        }

        .mobile-tabbar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1060;
            background: rgba(255, 255, 255, .98);
            border-top: 1px solid var(--c-border);
            box-shadow: 0 -6px 20px rgba(16, 24, 40, .05);
            padding-bottom: env(safe-area-inset-bottom);
        }

        .mobile-tabbar-inner {
            display: flex;
            height: 64px;
        }

        .mobile-tab {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2px;
            color: var(--c-text-light);
            font-size: 11px;
            line-height: 1;
            text-decoration: none;
            transition: color .2s ease;
        }

        .mobile-tab i {
            font-size: 20px;
            line-height: 1;
        }

        .mobile-tab.active,
        .mobile-tab:active {
            color: var(--c-blue);
        }

        .ui-footer {
            background: #F0F4F9;
            margin-top: 4.5rem;
            padding-top: 3.5rem;
        }

        .footer-brand-col {
            padding-right: 2rem;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: .6rem;
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--c-text);
        }

        .footer-brand .brand-mark {
            width: 36px;
            height: 36px;
            border-radius: 10px;
        }

        .footer-desc {
            margin: 1rem 0 1.25rem;
            max-width: 400px;
            color: #51637A;
            font-size: .938rem;
        }

        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: .75rem 1rem;
            margin-top: .25rem;
        }

        .hero-trust span {
            display: inline-flex;
            align-items: center;
            gap: .4rem;
            font-size: .875rem;
            color: var(--c-text-light);
        }

        .hero-trust i {
            color: var(--c-blue);
            font-size: 1.05rem;
        }

        .footer-title {
            font-size: .938rem;
            font-weight: 700;
            color: var(--c-text);
            margin-bottom: 1.1rem;
        }

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

        .footer-link-list li {
            margin-bottom: .65rem;
        }

        .footer-link-list a {
            color: #5E6F84;
            font-size: .9rem;
            text-decoration: none;
            transition: color .2s ease, padding-left .2s ease;
        }

        .footer-link-list a:hover {
            color: var(--c-blue);
            padding-left: 3px;
        }

        .footer-bottom {
            border-top: 1px solid #DCe4EC;
            margin-top: 3rem;
            padding: 1.25rem 0;
        }

        .footer-bottom-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            flex-wrap: wrap;
            color: #71839A;
            font-size: .875rem;
        }

        @media (max-width: 991.98px) {
            :root {
                --header-h: 64px;
            }

            .main-nav {
                display: none;
            }

            .mobile-tabbar {
                display: block;
            }

            body {
                padding-bottom: 76px;
            }

            .ui-footer {
                margin-top: 3rem;
                padding-top: 2.5rem;
            }
        }

        @media (max-width: 575.98px) {
            .ui-header-inner {
                gap: .5rem;
            }

            .brand-mark {
                width: 34px;
                height: 34px;
                border-radius: 10px;
            }

            .brand-text {
                font-size: 1.125rem;
            }

            .header-cta .btn-ui-main {
                min-height: 36px;
                padding: .38rem .75rem;
                font-size: .85rem;
            }

            .footer-brand-col {
                padding-right: 0;
            }

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

        .article-page {
            padding: 2.25rem 0 4rem;
            min-height: 60vh;
        }

        .article-shell {
            max-width: 940px;
            margin: 0 auto;
        }

        .article-card {
            background: var(--c-card);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(229, 234, 240, .9);
            box-shadow: var(--shadow-sm);
            padding: clamp(1.5rem, 4vw, 3.25rem);
        }

        .article-breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: .4rem;
            font-size: .875rem;
            color: var(--c-text-light);
            margin-bottom: 1.5rem;
        }

        .article-breadcrumb a {
            color: var(--c-text-light);
            text-decoration: none;
            transition: color .2s ease;
        }

        .article-breadcrumb a:hover {
            color: var(--c-blue);
        }

        .article-breadcrumb .sep {
            color: #B6C2D1;
        }

        .article-breadcrumb .current {
            color: var(--c-text);
            font-weight: 500;
            max-width: 380px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .article-title {
            font-size: clamp(1.6rem, 2.6vw, 2.25rem);
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: .01em;
            margin: 0 0 1.25rem;
        }

        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: .5rem .85rem;
            color: var(--c-text-light);
            font-size: .9rem;
        }

        .article-meta-item {
            display: inline-flex;
            align-items: center;
            gap: .35rem;
        }

        .article-meta-item i {
            color: var(--c-blue);
        }

        .meta-dot {
            width: 3px;
            height: 3px;
            border-radius: 50%;
            background: #C6D0DC;
        }

        .article-divider {
            border: 0;
            border-top: 1px solid var(--c-border);
            margin: 1.75rem 0 2rem;
        }

        .article-content {
            color: #243244;
            font-size: 1.0625rem;
            line-height: 1.85;
            word-break: break-word;
        }

        .article-content p {
            margin: 0 0 1.5rem;
        }

        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin: 2.4rem 0 1rem;
            padding-left: .8rem;
            border-left: 4px solid var(--c-blue);
            color: var(--c-text);
        }

        .article-content h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin: 2.2rem 0 .8rem;
            color: var(--c-text);
        }

        .article-content h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin: 1.8rem 0 .65rem;
            color: var(--c-text);
        }

        .article-content a {
            color: var(--c-blue);
            text-decoration: underline;
            text-underline-offset: 4px;
            text-decoration-thickness: 1px;
        }

        .article-content a:hover {
            color: var(--c-blue-dark);
            text-decoration-color: var(--c-blue-dark);
        }

        .article-content ul,
        .article-content ol {
            margin: 0 0 1.6rem;
            padding-left: 1.5rem;
        }

        .article-content ul li,
        .article-content ol li {
            margin-bottom: .45rem;
        }

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

        .article-content blockquote {
            margin: 1.8rem 0;
            padding: 1rem 1.25rem;
            background: rgba(244, 247, 250, .85);
            border-left: 3px solid var(--c-blue);
            color: #526079;
            border-radius: 0 12px 12px 0;
        }

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

        .article-content img {
            display: block;
            max-width: 100%;
            border-radius: var(--radius-card);
            margin: 1.6rem auto;
            box-shadow: var(--shadow-sm);
        }

        .article-content figure {
            margin: 1.8rem 0;
        }

        .article-content figcaption {
            text-align: center;
            color: var(--c-text-light);
            font-size: .875rem;
            margin-top: .6rem;
        }

        .article-content pre {
            background: #F1F5F9;
            border: 1px solid var(--c-border);
            border-radius: 14px;
            padding: 1.1rem 1.25rem;
            overflow-x: auto;
            color: #2D3A4C;
            font-size: .95rem;
            line-height: 1.65;
            margin-bottom: 1.7rem;
        }

        .article-content code {
            background: #EEF2F7;
            padding: .15rem .4rem;
            border-radius: 6px;
            font-size: .92em;
            color: #B4452C;
        }

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

        .article-content table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            border: 1px solid var(--c-border);
            border-radius: 12px;
            overflow: hidden;
            margin: 0 0 1.75rem;
            font-size: .95rem;
        }

        .article-content th,
        .article-content td {
            border-bottom: 1px solid var(--c-border);
            padding: .75rem 1rem;
            text-align: left;
            vertical-align: top;
        }

        .article-content th {
            background: #F4F7FA;
            font-weight: 600;
            color: var(--c-text);
        }

        .article-content tr:last-child td {
            border-bottom: 0;
        }

        .article-content hr {
            border: 0;
            border-top: 1px solid var(--c-border);
            margin: 2.2rem 0;
        }

        .article-footer-zone {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
            border-top: 1px solid var(--c-border);
            padding-top: 1.8rem;
            margin-top: 2.8rem;
        }

        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: .6rem;
            align-items: center;
        }

        .tag-pill {
            display: inline-flex;
            align-items: center;
            gap: .35rem;
            background: rgba(25, 115, 232, .07);
            color: var(--c-blue-dark);
            border-radius: 99px;
            padding: .35rem .85rem;
            font-size: .835rem;
            font-weight: 500;
        }

        .tag-pill i {
            color: var(--c-blue);
        }

        .return-link {
            text-decoration: none;
        }

        .article-empty {
            text-align: center;
            padding: 3.5rem 1rem 3rem;
        }

        .empty-code {
            font-size: 3rem;
            color: #81A8D9;
            line-height: 1;
            margin-bottom: .8rem;
        }

        .article-empty .empty-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--c-text);
        }

        .article-empty .empty-desc {
            color: var(--c-text-light);
            font-size: .95rem;
            margin-bottom: 1.8rem;
        }

        .article-empty .btn-ui-main {
            min-width: 160px;
        }

        @media (max-width: 767.98px) {
            .article-page {
                padding: 1rem 0 3rem;
            }

            .article-card {
                padding: 1.25rem 1.25rem 1.75rem;
                border-radius: 18px;
            }

            .article-title {
                font-size: 1.4rem;
            }

            .article-meta {
                font-size: .85rem;
            }

            .article-content {
                font-size: 1rem;
                line-height: 1.8;
            }

            .article-content table {
                display: block;
                overflow-x: auto;
                white-space: nowrap;
            }

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

        @media (max-width: 430px) {
            .article-meta {
                gap: .6rem;
            }

            .meta-dot {
                display: none;
            }
        }

/* roulang page: category2 */
:root {
            --ui-primary: #1973E8;
            --ui-primary-hover: #0E5BC4;
            --ui-primary-soft: rgba(25, 115, 232, .06);
            --ui-teal: #14B8A6;
            --ui-orange: #F97316;
            --ui-page-bg: #F6F8FB;
            --ui-card-bg: #FFFFFF;
            --ui-text: #132033;
            --ui-text-sub: #64748A;
            --ui-border: #E5EAF0;
            --ui-radius-btn: 10px;
            --ui-radius-card: 16px;
            --ui-radius-lg: 24px;
            --ui-radius-img: 12px;
            --ui-shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 6px 20px rgba(16, 24, 40, .06);
            --ui-shadow-hover: 0 4px 8px rgba(16, 24, 40, .06), 0 16px 30px rgba(16, 24, 40, .10);
            --ui-font: Inter, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --ui-header-h: 72px;
            --ui-footer-pad: 64px;
            --ui-tabbar-h: 64px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: var(--ui-font);
            font-size: 1rem;
            line-height: 1.75;
            background: var(--ui-page-bg);
            color: var(--ui-text);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: var(--ui-primary);
            text-decoration: none;
            transition: color .2s ease;
        }
        a:hover {
            color: var(--ui-primary-hover);
        }
        p {
            margin-top: 0;
            margin-bottom: 1rem;
        }
        .container {
            max-width: 1200px;
        }
        .ui-primary-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--ui-primary);
            border: 1px solid var(--ui-primary);
            color: #fff;
            font-size: 1.0625rem;
            font-weight: 600;
            height: 48px;
            padding: 0 24px;
            border-radius: var(--ui-radius-btn);
            transition: background .2s, border-color .2s, box-shadow .2s, transform .2s;
        }
        .ui-primary-btn:hover {
            background: var(--ui-primary-hover);
            border-color: var(--ui-primary-hover);
            color: #fff;
            box-shadow: 0 8px 20px rgba(25, 115, 232, .22);
            transform: translateY(-1px);
        }
        .ui-secondary-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #fff;
            border: 1px solid var(--ui-border);
            color: var(--ui-text);
            font-size: 1.0625rem;
            font-weight: 600;
            height: 48px;
            padding: 0 24px;
            border-radius: var(--ui-radius-btn);
            transition: border-color .2s, box-shadow .2s, transform .2s, background .2s;
        }
        .ui-secondary-btn:hover {
            border-color: var(--ui-primary);
            color: var(--ui-primary);
            background: var(--ui-primary-soft);
            box-shadow: var(--ui-shadow);
            transform: translateY(-1px);
        }
        /* ---------- Header ---------- */
        .ui-header {
            height: var(--ui-header-h);
            background: #fff;
            position: sticky;
            top: 0;
            z-index: 1050;
            border-bottom: 1px solid var(--ui-border);
            transition: box-shadow .25s ease, background .25s ease;
        }
        .ui-header.scrolled {
            background: rgba(255, 255, 255, .96);
            box-shadow: 0 6px 24px rgba(16, 24, 40, .06);
        }
        .ui-header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--ui-header-h);
            gap: 24px;
        }
        .ui-header .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            flex-shrink: 0;
        }
        .brand-mark {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--ui-primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 10px rgba(25, 115, 232, .18);
            flex-shrink: 0;
        }
        .brand-text {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--ui-text);
            letter-spacing: .01em;
            line-height: 1.2;
            white-space: nowrap;
        }
        .brand-text span {
            color: var(--ui-primary);
            font-weight: 700;
            margin-left: 2px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-link-item {
            font-size: 1rem;
            font-weight: 500;
            color: var(--ui-text-sub);
            text-decoration: none;
            position: relative;
            padding: 8px 2px;
            transition: color .2s ease;
            white-space: nowrap;
        }
        .nav-link-item:hover {
            color: var(--ui-text);
        }
        .nav-link-item.active {
            color: var(--ui-primary);
            font-weight: 600;
        }
        .nav-link-item.active::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 4px;
            background: var(--ui-primary);
            border-radius: 99px;
        }
        .header-cta {
            display: flex;
            align-items: center;
        }
        .header-cta .btn-ui-main {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--ui-primary);
            border: 1px solid var(--ui-primary);
            color: #fff;
            font-size: .9375rem;
            font-weight: 600;
            height: 42px;
            padding: 0 18px;
            border-radius: var(--ui-radius-btn);
            transition: background .2s, border-color .2s, box-shadow .2s, transform .2s;
        }
        .header-cta .btn-ui-main:hover {
            background: var(--ui-primary-hover);
            color: #fff;
            box-shadow: 0 6px 16px rgba(25, 115, 232, .22);
            transform: translateY(-1px);
        }
        /* ---------- Mobile Bottom Tab ---------- */
        .ui-tabbar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1060;
            background: #fff;
            border-top: 1px solid var(--ui-border);
            height: calc(var(--ui-tabbar-h) + env(safe-area-inset-bottom));
            padding-bottom: env(safe-area-inset-bottom);
        }
        .ui-tabbar-nav {
            display: flex;
            height: var(--ui-tabbar-h);
            align-items: stretch;
        }
        .ui-tabbar-link {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            text-decoration: none;
            color: var(--ui-text-sub);
            font-size: .6875rem;
            font-weight: 500;
            line-height: 1;
            transition: color .2s;
            position: relative;
        }
        .ui-tabbar-link i {
            font-size: 1.25rem;
            line-height: 1;
        }
        .ui-tabbar-link.active {
            color: var(--ui-primary);
            font-weight: 600;
        }
        .ui-tabbar-link.active::before {
            content: "";
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 32px;
            height: 3px;
            border-radius: 0 0 4px 4px;
            background: var(--ui-primary);
        }
        /* ---------- Banner / Page Hero ---------- */
        .category-hero {
            position: relative;
            padding: 64px 0 56px;
            background: linear-gradient(180deg, rgba(255, 255, 255, .94), rgba(246, 248, 251, .96)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            border-bottom: 1px solid var(--ui-border);
        }
        .crumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
            font-size: .875rem;
            color: var(--ui-text-sub);
            margin-bottom: 20px;
        }
        .crumb a {
            color: var(--ui-text-sub);
            text-decoration: none;
            transition: color .2s;
        }
        .crumb a:hover {
            color: var(--ui-primary);
        }
        .crumb-sep {
            color: #c0c8d0;
            font-size: .8125rem;
        }
        .crumb-current {
            color: var(--ui-text);
            font-weight: 500;
        }
        .category-hero h1 {
            font-size: clamp(2.2rem, 3.6vw, 3rem);
            font-weight: 800;
            color: var(--ui-text);
            letter-spacing: .01em;
            margin-bottom: 12px;
            line-height: 1.2;
        }
        .category-hero h1 .accent {
            color: var(--ui-primary);
        }
        .category-hero .lead {
            font-size: 1.125rem;
            color: var(--ui-text-sub);
            max-width: 660px;
            line-height: 1.8;
            margin-bottom: 0;
        }
        .hero-tag-row {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 22px;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, .8);
            border: 1px solid var(--ui-border);
            border-radius: 99px;
            padding: 8px 16px;
            font-size: .875rem;
            color: var(--ui-text);
            font-weight: 500;
            backdrop-filter: blur(2px);
        }
        .hero-tag i {
            color: var(--ui-primary);
            font-size: 1rem;
        }
        /* ---------- Layout: left nav + right content ---------- */
        .catalog-layout {
            padding-top: 36px;
            padding-bottom: 40px;
        }
        .catalog-side {
            position: sticky;
            top: calc(var(--ui-header-h) + 20px);
            background: var(--ui-card-bg);
            border: 1px solid var(--ui-border);
            border-radius: var(--ui-radius-card);
            box-shadow: var(--ui-shadow);
            padding: 22px 16px;
            max-height: calc(100vh - var(--ui-header-h) - 70px);
            overflow-y: auto;
            scrollbar-width: thin;
        }
        .catalog-side h5 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--ui-text);
            padding: 0 8px 12px;
            margin-bottom: 8px;
            border-bottom: 1px solid var(--ui-border);
            letter-spacing: .02em;
        }
        .catalog-list {
            list-style: none;
            padding: 0;
            margin: 8px 0 0;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .catalog-list li {
            margin: 0;
        }
        .catalog-list a {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--ui-text-sub);
            text-decoration: none;
            font-size: .9375rem;
            font-weight: 500;
            padding: 9px 10px;
            border-radius: 8px;
            transition: background .2s, color .2s;
        }
        .catalog-list a i {
            font-size: 1rem;
            color: #c0c8d0;
            transition: color .2s;
        }
        .catalog-list a:hover,
        .catalog-list a.active {
            background: var(--ui-primary-soft);
            color: var(--ui-primary);
        }
        .catalog-list a:hover i,
        .catalog-list a.active i {
            color: var(--ui-primary);
        }
        .catalog-side .catalog-note {
            margin-top: 18px;
            background: var(--ui-primary-soft);
            border-radius: 10px;
            padding: 14px;
            font-size: .8125rem;
            color: var(--ui-text-sub);
            line-height: 1.6;
        }
        .catalog-side .catalog-note strong {
            color: var(--ui-primary);
            font-weight: 600;
        }
        /* right content */
        .catalog-main {
            padding-left: 16px;
        }
        .guide-block {
            background: var(--ui-card-bg);
            border: 1px solid var(--ui-border);
            border-radius: var(--ui-radius-card);
            box-shadow: var(--ui-shadow);
            padding: 32px;
            margin-bottom: 28px;
            transition: box-shadow .3s ease, transform .3s ease;
            scroll-margin-top: calc(var(--ui-header-h) + 30px);
        }
        .guide-block:hover {
            box-shadow: var(--ui-shadow-hover);
        }
        .guide-block:last-child {
            margin-bottom: 0;
        }
        .guide-step-head {
            display: flex;
            gap: 18px;
            margin-bottom: 20px;
            align-items: flex-start;
        }
        .guide-step-num {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: var(--ui-primary-soft);
            color: var(--ui-primary);
            font-size: 1.375rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            line-height: 1;
        }
        .guide-step-body {
            flex: 1;
        }
        .guide-step-body .guide-kicker {
            font-size: .8125rem;
            color: var(--ui-primary);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: .04em;
            margin-bottom: 2px;
        }
        .guide-step-body h2 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--ui-text);
            margin: 0;
            line-height: 1.3;
            letter-spacing: .01em;
        }
        .guide-step-body h2 i {
            color: var(--ui-primary);
            margin-left: 6px;
        }
        .guide-desc {
            color: var(--ui-text);
            line-height: 1.8;
            margin-bottom: 18px;
            font-size: .9375rem;
        }
        .guide-feature-list {
            list-style: none;
            margin: 0 0 16px;
            padding: 0;
        }
        .guide-feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: .9375rem;
            line-height: 1.7;
            color: var(--ui-text);
            padding: 6px 0;
        }
        .guide-feature-list li i {
            color: var(--ui-teal);
            font-size: 1rem;
            line-height: 1.5;
            flex-shrink: 0;
        }
        .guide-focus-box {
            background: var(--ui-primary-soft);
            border-left: 3px solid var(--ui-primary);
            border-radius: 0 10px 10px 0;
            padding: 14px 18px;
            font-size: .9rem;
            color: var(--ui-text);
            margin-bottom: 18px;
            line-height: 1.75;
        }
        .guide-links {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            border-top: 1px solid var(--ui-border);
            padding-top: 16px;
            margin-top: 8px;
        }
        .guide-link-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #fff;
            border: 1px solid var(--ui-border);
            border-radius: 99px;
            padding: 7px 14px;
            font-size: .875rem;
            font-weight: 500;
            color: var(--ui-text);
            text-decoration: none;
            transition: border-color .2s, background .2s, color .2s;
        }
        .guide-link-chip i {
            color: var(--ui-primary);
            font-size: .875rem;
        }
        .guide-link-chip:hover {
            background: var(--ui-primary-soft);
            border-color: var(--ui-primary);
            color: var(--ui-primary);
        }
        .guide-link-chip:hover i {
            color: var(--ui-primary);
        }
        /* mobile horizontal scroll tab */
        .catalog-mobile-tabs {
            display: none;
        }
        /* ---------- FAQ ---------- */
        .faq-section {
            padding: 36px 0 44px;
        }
        .faq-section .section-header {
            margin-bottom: 24px;
        }
        .ui-kicker {
            font-size: .875rem;
            font-weight: 700;
            color: var(--ui-primary);
            letter-spacing: .06em;
            text-transform: uppercase;
            margin-bottom: 6px;
            display: block;
        }
        .faq-section h2 {
            font-size: clamp(1.6rem, 2.6vw, 2.2rem);
            font-weight: 800;
            color: var(--ui-text);
            margin-bottom: 10px;
        }
        .faq-section .sub-note {
            color: var(--ui-text-sub);
            font-size: .9375rem;
        }
        .faq-accordion {
            max-width: 900px;
        }
        .faq-item {
            background: var(--ui-card-bg);
            border: 1px solid var(--ui-border);
            border-radius: 14px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: box-shadow .2s;
        }
        .faq-item:hover {
            box-shadow: var(--ui-shadow);
        }
        .faq-q {
            display: flex;
            width: 100%;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 22px;
            background: none;
            border: none;
            font-size: 1rem;
            font-weight: 600;
            color: var(--ui-text);
            cursor: pointer;
            text-align: left;
            transition: color .2s;
        }
        .faq-q .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--ui-primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform .3s ease, background .3s ease;
        }
        .faq-q .faq-icon i {
            color: var(--ui-primary);
            font-size: .875rem;
        }
        .faq-q[aria-expanded="true"] {
            color: var(--ui-primary);
        }
        .faq-q[aria-expanded="true"] .faq-icon {
            transform: rotate(45deg);
            background: var(--ui-primary);
        }
        .faq-q[aria-expanded="true"] .faq-icon i {
            color: #fff;
        }
        .faq-a-body {
            padding: 0 22px 20px;
            font-size: .9375rem;
            color: var(--ui-text-sub);
            line-height: 1.75;
        }
        /* ---------- CTA ---------- */
        .cta-section {
            padding: 16px 0 56px;
        }
        .cta-card {
            background: var(--ui-primary-soft);
            border-radius: var(--ui-radius-lg);
            padding: 44px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            border: 1px solid rgba(25, 115, 232, .10);
            flex-wrap: wrap;
        }
        .cta-card h2 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--ui-text);
            margin-bottom: 6px;
        }
        .cta-card p {
            color: var(--ui-text-sub);
            margin-bottom: 0;
            font-size: .9375rem;
        }
        .cta-card .cta-btns {
            display: inline-flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }
        .cta-card .btn-ghost-light {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: transparent;
            border: 1px solid var(--ui-border);
            color: var(--ui-text);
            font-size: 1rem;
            font-weight: 600;
            height: 50px;
            padding: 0 24px;
            border-radius: var(--ui-radius-btn);
            transition: all .2s;
            text-decoration: none;
        }
        .cta-card .btn-ghost-light:hover {
            border-color: var(--ui-primary);
            color: var(--ui-primary);
        }
        /* ---------- Footer ---------- */
        .ui-footer {
            background: #F0F4F9;
            padding-top: var(--ui-footer-pad);
            padding-bottom: 28px;
            margin-top: 20px;
        }
        .ui-footer .footer-brand-col {
            margin-bottom: 24px;
        }
        .ui-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.375rem;
            font-weight: 800;
            color: var(--ui-text);
            margin-bottom: 14px;
        }
        .footer-desc {
            color: var(--ui-text-sub);
            font-size: .9375rem;
            line-height: 1.7;
            max-width: 360px;
            margin-bottom: 18px;
        }
        .hero-trust {
            display: inline-flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .hero-trust span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: .8125rem;
            color: var(--ui-text-sub);
            background: #fff;
            border: 1px solid var(--ui-border);
            border-radius: 99px;
            padding: 6px 12px;
        }
        .hero-trust span i {
            color: var(--ui-primary);
        }
        .footer-title {
            font-size: .9375rem;
            font-weight: 700;
            color: var(--ui-text);
            margin-bottom: 14px;
            position: relative;
            padding-bottom: 8px;
        }
        .footer-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 20px;
            height: 2px;
            background: var(--ui-primary);
            border-radius: 2px;
        }
        .footer-link-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-link-list a {
            color: var(--ui-text-sub);
            text-decoration: none;
            font-size: .875rem;
            transition: color .2s, padding-left .2s;
            line-height: 1.5;
        }
        .footer-link-list a:hover {
            color: var(--ui-primary);
            padding-left: 4px;
        }
        .footer-copyright {
            border-top: 1px solid var(--ui-border);
            margin-top: 40px;
            padding-top: 24px;
            text-align: center;
            color: var(--ui-text-sub);
            font-size: .8125rem;
        }
        .footer-copyright span {
            color: #94a3b8;
        }
        /* ---------- Responsive ---------- */
        @media (max-width: 991.98px) {
            :root {
                --ui-header-h: 64px;
            }
            .main-nav {
                display: none;
            }
            .header-cta .btn-ui-main {
                height: 36px;
                font-size: .8125rem;
                padding: 0 14px;
            }
            .brand-text {
                font-size: 1.1rem;
            }
            .brand-mark {
                width: 32px;
                height: 32px;
            }
            .ui-tabbar {
                display: block;
            }
            body {
                padding-bottom: calc(var(--ui-tabbar-h) + env(safe-area-inset-bottom) + var(--ui-tabbar-h));
                padding-bottom: calc(var(--ui-tabbar-h) + env(safe-area-inset-bottom));
            }
            .ui-footer {
                margin-bottom: calc(var(--ui-tabbar-h) + env(safe-area-inset-bottom));
                padding-bottom: 20px;
            }
            .category-hero {
                padding: 44px 0 40px;
            }
            .catalog-layout {
                padding-top: 20px;
            }
            .catalog-side {
                display: none;
            }
            .catalog-main {
                padding-left: 0;
            }
            .catalog-mobile-tabs {
                display: block;
                margin: 0 0 20px;
                overflow-x: auto;
                scrollbar-width: none;
                -webkit-overflow-scrolling: touch;
                background: #fff;
                border: 1px solid var(--ui-border);
                border-radius: 12px;
                padding: 10px 6px;
                white-space: nowrap;
            }
            .catalog-mobile-tabs::-webkit-scrollbar {
                display: none;
            }
            .catalog-mobile-tabs .mtab {
                display: inline-flex;
                align-items: center;
                gap: 6px;
                padding: 8px 16px;
                font-size: .875rem;
                font-weight: 600;
                color: var(--ui-text-sub);
                text-decoration: none;
                border-radius: 99px;
                transition: background .2s, color .2s;
            }
            .catalog-mobile-tabs .mtab i {
                font-size: .875rem;
            }
            .catalog-mobile-tabs .mtab:hover,
            .catalog-mobile-tabs .mtab.active {
                background: var(--ui-primary-soft);
                color: var(--ui-primary);
            }
            .guide-block {
                padding: 22px 18px;
                margin-bottom: 16px;
            }
            .guide-step-body h2 {
                font-size: 1.25rem;
            }
            .guide-step-head {
                gap: 12px;
            }
            .guide-step-num {
                width: 40px;
                height: 40px;
                font-size: 1.125rem;
                border-radius: 12px;
            }
            .cta-card {
                padding: 28px 22px;
            }
            .ui-footer {
                padding-top: 44px;
            }
        }
        @media (max-width: 767.98px) {
            .category-hero h1 {
                font-size: 2rem;
            }
            .category-hero .lead {
                font-size: 1rem;
            }
            .hero-tag-row {
                gap: 8px;
            }
            .category-hero {
                padding: 32px 0 32px;
            }
            .crumb {
                font-size: .8125rem;
                margin-bottom: 14px;
            }
            .faq-item .faq-q {
                padding: 16px 18px;
                font-size: .9375rem;
            }
            .faq-a-body {
                padding: 0 18px 16px;
            }
            .footer-desc {
                max-width: 100%;
            }
        }
        @media (min-width: 992px) and (max-width: 1199px) {
            .main-nav {
                gap: 20px;
            }
            .header-cta .btn-ui-main {
                font-size: .875rem;
                padding: 0 16px;
            }
        }
        /* Print / Misc */
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
        }
        .btn:focus-visible,
        .ui-primary-btn:focus-visible,
        .ui-secondary-btn:focus-visible,
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid rgba(25, 115, 232, .5);
            outline-offset: 2px;
        }
        .footer-extra {
            font-size: .8125rem;
            color: #94a3b8;
            margin-top: 8px;
        }
        .footer-bottom-row {
            border-top: 1px solid var(--ui-border);
            margin-top: 30px;
            padding-top: 20px;
        }

/* roulang page: category3 */
:root {
            --ui-blue: #1973E8;
            --ui-blue-hover: #0E5BC4;
            --ui-teal: #14B8A6;
            --ui-orange: #F97316;
            --ui-page-bg: #F6F8FB;
            --ui-card-bg: #FFFFFF;
            --ui-text: #132033;
            --ui-muted: #64748A;
            --ui-line: #E5EAF0;
            --ui-blue-soft: rgba(25, 115, 232, 0.06);
            --ui-shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 6px 20px rgba(16, 24, 40, .06);
            --ui-shadow-hover: 0 4px 8px rgba(16, 24, 40, .06), 0 16px 30px rgba(16, 24, 40, .10);
            --ui-radius: 16px;
            --ui-radius-lg: 24px;
            --ui-font: Inter, PingFang SC, Microsoft YaHei, Noto Sans CJK SC, sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth
        }
        body {
            margin: 0;
            font-family: var(--ui-font);
            background: var(--ui-page-bg);
            color: var(--ui-text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }
        img {
            max-width: 100%;
            display: block;
            border-radius: 12px;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        a:hover {
            color: var(--ui-blue-hover)
        }
        ul,
        ol,
        p,
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin-top: 0;
            margin-bottom: 0;
        }
        .ui-main {
            display: block;
            overflow: hidden;
        }
        .container {
            max-width: 1200px
        }

        /* ===== Buttons ===== */
        .btn-ui-main {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 48px;
            padding: 0 22px;
            border-radius: 10px;
            background: var(--ui-blue);
            border: 1px solid var(--ui-blue);
            color: #fff !important;
            font-weight: 600;
            font-size: 1rem;
            line-height: 1;
            white-space: nowrap;
            box-shadow: 0 1px 2px rgba(16, 24, 40, .05);
            transition: background .25s, box-shadow .25s, transform .2s;
        }
        .btn-ui-main:hover {
            background: var(--ui-blue-hover);
            border-color: var(--ui-blue-hover);
            box-shadow: 0 8px 18px rgba(25, 115, 232, .18);
            transform: translateY(-1px);
            color: #fff !important;
        }
        .btn-ui-main:active {
            transform: translateY(0) scale(.99)
        }
        .btn-ui-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 48px;
            padding: 0 22px;
            border-radius: 10px;
            background: #fff;
            border: 1px solid #DCE3EC;
            color: var(--ui-text) !important;
            font-weight: 600;
            font-size: 1rem;
            white-space: nowrap;
            transition: border-color .25s, background .25s, box-shadow .25s, transform .2s;
        }
        .btn-ui-ghost:hover {
            border-color: var(--ui-blue);
            color: var(--ui-blue) !important;
            box-shadow: var(--ui-shadow);
            transform: translateY(-1px);
        }
        .btn-ui-lg {
            height: 56px;
            padding: 0 30px;
            font-size: 1.0625rem;
            border-radius: 12px;
        }
        .btn-block {
            width: 100%
        }

        /* ===== Header ===== */
        .ui-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(255, 255, 255, .97);
            border-bottom: 1px solid transparent;
            transition: box-shadow .25s, background .25s;
        }
        .ui-header.scrolled {
            box-shadow: 0 6px 16px rgba(16, 24, 40, .06);
            border-bottom-color: var(--ui-line);
        }
        .ui-header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 20px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-mark {
            width: 38px;
            height: 38px;
            border-radius: 11px;
            background: linear-gradient(135deg, var(--ui-blue), #4A9DF8);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 6px 12px rgba(25, 115, 232, .2);
        }
        .brand-mark svg {
            display: block;
        }
        .brand-text {
            font-size: 1.3rem;
            font-weight: 800;
            letter-spacing: .01em;
            color: var(--ui-text);
            white-space: nowrap;
        }
        .brand-text span {
            color: var(--ui-blue);
            margin-left: 2px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 34px;
            margin: 0 auto;
        }
        .nav-link-item {
            position: relative;
            color: #334155;
            font-size: 15px;
            font-weight: 500;
            line-height: 72px;
            transition: color .2s;
            white-space: nowrap;
        }
        .nav-link-item:hover {
            color: var(--ui-blue-hover);
        }
        .nav-link-item.active {
            color: var(--ui-blue);
            font-weight: 600;
        }
        .nav-link-item.active::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: 14px;
            transform: translateX(-50%);
            width: 4px;
            height: 4px;
            border-radius: 99px;
            background: var(--ui-blue);
        }
        .header-cta {
            flex-shrink: 0;
        }
        .header-cta .btn-ui-main {
            height: 44px;
            padding: 0 18px;
            font-size: 15px;
        }

        /* ===== Mobile bottom tab ===== */
        .mobile-bottom-nav {
            position: fixed;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 1060;
            display: none;
            background: rgba(255, 255, 255, .98);
            border-top: 1px solid var(--ui-line);
            padding-bottom: env(safe-area-inset-bottom);
            box-shadow: 0 -6px 18px rgba(16, 24, 40, .05);
        }
        .mobile-bottom-nav-inner {
            display: flex;
            align-items: stretch;
            height: 64px;
        }
        .mobile-tab {
            flex: 1 1 0;
            min-width: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 3px;
            color: #94A3B8;
            transition: color .2s;
        }
        .mobile-tab i {
            font-size: 1.3rem;
            line-height: 1;
        }
        .mobile-tab span {
            font-size: 11px;
            line-height: 1;
            letter-spacing: .01em;
        }
        .mobile-tab.active {
            color: var(--ui-blue);
            font-weight: 600;
        }
        .mobile-tab.active i {
            font-weight: 700;
        }

        /* ===== Category Hero ===== */
        .ui-page-hero {
            position: relative;
            background:
                linear-gradient(120deg, rgba(255, 255, 255, .99) 0%, rgba(255, 255, 255, .82) 48%, rgba(235, 243, 255, .88) 100%),
                url('/assets/images/backpic/back-2.png') center / cover no-repeat;
            border-bottom: 1px solid var(--ui-line);
            padding: clamp(50px, 7vw, 76px) 0 clamp(40px, 6vw, 64px);
        }
        .ui-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--ui-blue);
            background: rgba(25, 115, 232, .08);
            border: 1px solid rgba(25, 115, 232, .14);
            border-radius: 99px;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 18px;
            letter-spacing: .02em;
        }
        .ui-page-hero h1 {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 800;
            line-height: 1.24;
            letter-spacing: .01em;
            margin-bottom: 18px;
        }
        .ui-page-hero h1 .text-blue {
            color: var(--ui-blue)
        }
        .ui-hero-sub {
            max-width: 620px;
            font-size: 1.0625rem;
            color: #475569;
            line-height: 1.8;
            margin-bottom: 28px;
        }
        .ui-page-hero .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 28px;
        }
        .hero-visual {
            border-radius: 24px;
            overflow: hidden;
            box-shadow: 0 16px 36px rgba(16, 24, 40, .12);
            border: 6px solid #fff;
            transform: rotate(.4deg);
        }
        .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 18px;
        }
        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .hero-trust span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border: 1px solid rgba(16, 24, 40, .08);
            background: rgba(255, 255, 255, .85);
            color: #475569;
            border-radius: 999px;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 500;
        }
        .hero-trust span i {
            color: var(--ui-blue);
            font-size: 1rem;
        }

        /* ===== Sections ===== */
        .ui-section {
            padding: clamp(46px, 7vw, 76px) 0;
            position: relative;
        }
        .ui-section.bg-soft {
            background: rgba(25, 115, 232, .045);
        }
        .ui-section-head {
            max-width: 720px;
            margin-bottom: 38px;
        }
        .ui-section-head.center {
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        }
        .ui-section-head h2 {
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            font-weight: 700;
            line-height: 1.35;
            letter-spacing: .01em;
            margin-bottom: 12px;
        }
        .ui-section-head p {
            color: var(--ui-muted);
            font-size: 1rem;
            margin-bottom: 0;
        }
        .ui-section-head .ui-eyebrow {
            margin-bottom: 12px;
        }

        /* ===== Download platform panels ===== */
        .platform-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .platform-card {
            background: #fff;
            border: 1px solid rgba(16, 24, 40, .07);
            border-radius: 24px;
            padding: clamp(24px, 4vw, 42px);
            box-shadow: var(--ui-shadow);
            scroll-margin-top: 100px;
            transition: box-shadow .25s, transform .25s;
        }
        .platform-card:hover {
            box-shadow: var(--ui-shadow-hover);
            transform: translateY(-2px);
        }
        .platform-card-top {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 18px;
        }
        .ui-platform-icon {
            width: 52px;
            height: 52px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            border-radius: 14px;
            font-size: 1.55rem;
            color: #fff;
        }
        .ui-platform-icon.bg-android {
            background: #7AC47F;
        }
        .ui-platform-icon.bg-ios {
            background: #111827;
        }
        .ui-platform-icon.bg-windows {
            background: #1973E8;
        }
        .platform-name {
            font-size: .875rem;
            font-weight: 600;
            color: var(--ui-muted);
            letter-spacing: .04em;
            text-transform: uppercase;
        }
        .platform-card-top h3 {
            font-size: 1.35rem;
            font-weight: 700;
            margin-top: 2px;
        }
        .platform-intro {
            color: #475569;
            line-height: 1.8;
            margin-bottom: 16px;
            max-width: 520px;
        }
        .platform-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 4px;
        }
        .platform-tags .ui-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: 99px;
            background: var(--ui-blue-soft);
            border: 1px solid rgba(25, 115, 232, .12);
            color: var(--ui-blue);
            padding: 6px 12px;
            font-size: 13px;
            font-weight: 500;
        }
        .platform-tags .ui-badge i {
            font-size: .9rem;
        }

        .ui-step-list {
            list-style: none;
            margin: 0;
            padding: 0;
            counter-reset: step;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .ui-step-item {
            position: relative;
            padding-left: 42px;
            counter-increment: step;
        }
        .ui-step-item::before {
            content: counter(step);
            position: absolute;
            left: 0;
            top: 0;
            width: 28px;
            height: 28px;
            border-radius: 9px;
            background: rgba(25, 115, 232, .08);
            border: 1px solid rgba(25, 115, 232, .14);
            color: var(--ui-blue);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
            line-height: 1;
        }
        .ui-step-item strong {
            display: block;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 2px;
        }
        .ui-step-item span {
            color: var(--ui-muted);
            font-size: 14px;
            line-height: 1.6;
        }
        .platform-cta {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 14px;
        }
        .ui-file-info {
            color: var(--ui-muted);
            font-size: 13px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: 10px;
            padding: 7px 12px;
            background: #F1F5F9;
        }

        /* ===== Requirement ===== */
        .ui-report-wrap {
            background: #fff;
            border-radius: 24px;
            border: 1px solid rgba(16, 24, 40, .07);
            box-shadow: var(--ui-shadow);
            overflow: hidden;
        }
        .ui-report-left {
            padding: clamp(24px, 4vw, 42px);
        }
        .ui-report-left h2 {
            font-size: clamp(1.7rem, 2.6vw, 2.2rem);
            font-weight: 700;
            margin-bottom: 12px;
        }
        .ui-report-left>p {
            color: var(--ui-muted);
            margin-bottom: 26px;
        }
        .sys-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        .sys-row {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 16px;
            border-bottom: 1px dashed #E5EAF0;
            padding-bottom: 16px;
            flex-wrap: wrap;
        }
        .sys-row:last-child {
            border-bottom: 0;
            padding-bottom: 0;
        }
        .sys-row label {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            min-width: 104px;
            margin-bottom: 0;
        }
        .sys-row label i {
            color: var(--ui-blue);
            font-size: 1rem;
        }
        .sys-row ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 2px;
            text-align: right;
            color: #475569;
            font-size: 14px;
        }
        .sys-row ul .num {
            color: var(--ui-muted);
            font-size: 12px;
        }
        .ui-check-card {
            height: 100%;
            padding: clamp(24px, 4vw, 40px);
            background: rgba(25, 115, 232, .05);
            border-left: 1px solid var(--ui-line);
        }
        .ui-check-card .section-label {
            font-weight: 700;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 20px;
        }
        .ui-check-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
            padding: 0;
            list-style: none;
            margin: 0;
        }
        .ui-check-list li {
            position: relative;
            padding-left: 24px;
        }
        .ui-check-list li::before {
            content: "";
            position: absolute;
            left: 4px;
            top: 9px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--ui-blue);
        }
        .ui-check-list strong {
            display: block;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 2px;
        }
        .ui-check-list span {
            color: var(--ui-muted);
            font-size: 14px;
            line-height: 1.7;
        }

        /* ===== FAQ accordion ===== */
        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }
        .ui-faq-accordion {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .ui-faq-accordion .accordion-item {
            background: #fff;
            border: 1px solid var(--ui-line) !important;
            border-radius: 16px !important;
            box-shadow: 0 1px 2px rgba(16, 24, 40, .02);
            overflow: hidden;
        }
        .ui-faq-accordion .accordion-button {
            font-family: var(--ui-font);
            background: #fff;
            color: var(--ui-text);
            font-weight: 600;
            font-size: 1rem;
            padding: 20px 22px;
            box-shadow: none;
            border-radius: 16px !important;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color .2s;
        }
        .ui-faq-accordion .accordion-button::after {
            display: none;
        }
        .ui-faq-accordion .accordion-button .bi-plus-lg {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--ui-blue-soft);
            border: 1px solid rgba(25, 115, 232, .1);
            color: var(--ui-blue);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            transition: transform .25s;
        }
        .ui-faq-accordion .accordion-button:not(.collapsed) {
            color: var(--ui-blue);
            background: #fff;
        }
        .ui-faq-accordion .accordion-button:not(.collapsed) .bi-plus-lg {
            transform: rotate(45deg);
            background: var(--ui-blue);
            color: #fff;
        }
        .ui-faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(25, 115, 232, .1);
        }
        .ui-faq-accordion .accordion-body {
            padding: 0 22px 22px;
            color: #475569;
            line-height: 1.8;
            font-size: 15px;
        }

        /* ===== Help cta ===== */
        .ui-help-panel {
            background:
                linear-gradient(100deg, rgba(25, 115, 232, .08), rgba(25, 115, 232, .025)),
                url('/assets/images/backpic/back-1.png') center / cover no-repeat;
            border: 1px solid rgba(25, 115, 232, .12);
            border-radius: 24px;
            padding: clamp(28px, 5vw, 54px);
            display: flex;
            flex-direction: column;
            gap: 16px;
            align-items: flex-start;
        }
        .ui-help-panel h2 {
            font-size: clamp(1.5rem, 2.4vw, 2rem);
            font-weight: 700;
            margin-bottom: 4px;
        }
        .ui-help-panel p {
            color: #475569;
            max-width: 640px;
        }
        .ui-help-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 8px;
        }

        /* ===== Footer ===== */
        .ui-footer {
            background: #F0F4F9;
            border-top: 1px solid var(--ui-line);
            padding: clamp(40px, 6vw, 64px) 0 0;
            font-size: 14px;
        }
        .ui-footer .row {
            padding-bottom: 32px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--ui-text);
            margin-bottom: 16px;
        }
        .footer-brand .brand-mark {
            width: 34px;
            height: 34px;
            border-radius: 9px;
        }
        .footer-desc {
            max-width: 390px;
            color: #475569;
            line-height: 1.75;
            margin-bottom: 16px;
        }
        .footer-title {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--ui-text);
            margin-top: 6px;
        }
        .footer-link-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 11px;
        }
        .footer-link-list a {
            color: #64748A;
            transition: color .2s, padding-left .2s;
        }
        .footer-link-list a:hover {
            color: var(--ui-blue);
            padding-left: 3px;
        }
        .footer-link-list li {
            line-height: 1.4;
            color: #64748A;
        }
        .ui-footer-bottom {
            border-top: 1px solid #E5EAF0;
            padding: 18px 0;
            font-size: 13px;
            color: #64748A;
        }
        .ui-footer-bottom .container {
            display: flex;
            flex-direction: column;
            gap: 4px;
            justify-content: space-between;
        }
        .ui-footer-bottom p {
            margin: 0;
            line-height: 1.6;
        }

        /* ===== Focus visible ===== */
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(25, 115, 232, .5);
            outline-offset: 2px;
            border-radius: 6px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 991.98px) {
            .main-nav {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .ui-header-inner {
                justify-content: space-between;
                height: 64px;
            }
            .mobile-bottom-nav {
                display: block;
            }
            .ui-footer {
                padding-bottom: calc(64px + env(safe-area-inset-bottom));
            }
            .btn-ui-lg {
                width: 100%;
            }
            .platform-cta {
                width: 100%;
            }
            .platform-cta .btn-ui-main,
            .platform-cta .btn-ui-ghost {
                width: 100%;
            }
            .system-cta .btn-ui-main,
            .system-cta .btn-ui-ghost {
                width: 100%;
            }
            .ui-report-left h2 {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 767.98px) {
            .ui-page-hero {
                padding: 38px 0 48px;
            }
            .ui-page-hero h1 {
                font-size: 2.1rem;
                margin-bottom: 12px;
            }
            .ui-hero-sub {
                font-size: 1rem;
                margin-bottom: 22px;
            }
            .platform-card {
                padding: 22px;
                border-radius: 18px;
            }
            .ui-step-item span {
                font-size: 13px;
            }
            .sys-row {
                flex-direction: column;
                gap: 8px;
            }
            .sys-row ul {
                text-align: left;
                padding-left: 2px;
            }
            .ui-section-head h2 {
                font-size: 1.65rem;
            }
            .ui-help-actions {
                flex-direction: column;
                width: 100%;
            }
            .ui-help-actions .btn-ui-main,
            .ui-help-actions .btn-ui-ghost {
                width: 100%;
            }
        }
        @media (max-width: 520px) {
            .ui-header .brand-text {
                font-size: 1.18rem;
            }
            .brand-mark {
                width: 34px;
                height: 34px;
            }
            .ui-page-hero .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .ui-page-hero .hero-actions .btn-ui-main,
            .ui-page-hero .hero-actions .btn-ui-ghost {
                width: 100%;
            }
            .ui-eyebrow {
                font-size: 12px;
                padding: 5px 12px;
            }
            .platform-card-top {
                align-items: flex-start;
                flex-direction: column;
            }
            .ui-platform-icon {
                width: 46px;
                height: 46px;
            }
            .ui-footer .row {
                row-gap: 26px;
            }
        }