/* roulang page: index */
:root {
            --bg-void: #090C10;
            --bg-panel: #131820;
            --bg-raise: #1B222D;
            --primary: #C8F34A;
            --gold: #E0A32E;
            --text-main: #F0F4F8;
            --text-muted: #7C8799;
            --border-soft: #232C39;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --shadow-card: 0 10px 30px rgba(0, 0, 0, .4);
            --shadow-hover: 0 14px 36px rgba(0, 0, 0, .52);
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background: var(--bg-void);
            color: var(--text-main);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        input {
            font-family: inherit;
        }

        .container-main {
            max-width: 1200px;
            width: 100%;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

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

        @media(max-width:768px) {
            .section-pad {
                padding: 56px 0;
            }
        }

        .text-gradient-primary {
            background: linear-gradient(135deg, #D8FF70 0%, #C8F34A 40%, #9FD42B 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .card {
            background: var(--bg-panel);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, .04);
            box-shadow: var(--shadow-card);
        }

        .card-hover {
            transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
        }

        .card-hover:hover {
            transform: translateY(-4px);
            border-color: rgba(200, 243, 74, .28);
            box-shadow: var(--shadow-hover);
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: .4px;
            padding: 4px 12px;
            border-radius: 999px;
            background: rgba(200, 243, 74, .1);
            color: var(--primary);
            line-height: 1.5;
        }

        .gold-tag {
            background: rgba(224, 163, 46, .13);
            color: var(--gold);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #0A0D0F;
            font-weight: 700;
            font-size: 14px;
            border-radius: 10px;
            padding: 13px 24px;
            line-height: 1.2;
            transition: all .2s ease;
            box-shadow: 0 0 0 0 rgba(200, 243, 74, 0);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200, 243, 74, .2);
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: 1px solid rgba(240, 244, 248, .2);
            color: var(--text-main);
            font-weight: 600;
            font-size: 14px;
            border-radius: 10px;
            padding: 13px 22px;
            line-height: 1.2;
            background: rgba(255, 255, 255, .04);
            transition: all .2s ease;
        }

        .btn-ghost:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(200, 243, 74, .05);
            transform: translateY(-2px);
        }

        .section-heading-sub {
            font-size: 13px;
            letter-spacing: 2px;
            color: var(--gold);
            font-weight: 600;
            text-transform: uppercase;
        }

        .hero-bg {
            background: linear-gradient(180deg, rgba(9, 12, 16, .62) 0%, rgba(9, 12, 16, .84) 68%, #090C10 100%), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
        }

        .header-wrap {
            display: grid;
            grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
            align-items: center;
            height: 76px;
            gap: 18px;
        }

        .nav-left {
            display: flex;
            align-items: center;
            justify-content: flex-start;
            gap: 30px;
        }

        .nav-right {
            display: flex;
            align-items: center;
            justify-content: flex-end;
            gap: 26px;
        }

        .nav-link {
            position: relative;
            font-size: 14px;
            font-weight: 500;
            color: #b7c0cd;
            white-space: nowrap;
            padding: 6px 0;
        }

        .nav-link:hover,
        .nav-link.active {
            color: var(--text-main);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform .2s ease;
        }

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

        .mobile-toggle {
            display: none;
        }

        .mobile-drawer-overlay {
            position: fixed;
            inset: 0;
            z-index: 90;
            background: rgba(0, 0, 0, .6);
            opacity: 0;
            pointer-events: none;
            transition: opacity .28s ease;
        }

        .mobile-drawer-overlay.show {
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            z-index: 100;
            width: min(86vw, 340px);
            background: var(--bg-panel);
            padding: 28px 24px;
            transform: translateX(-105%);
            transition: transform .3s ease;
            overflow-y: auto;
            box-shadow: 12px 0 40px rgba(0, 0, 0, .45);
        }

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

        .mobile-drawer a {
            display: block;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, .06);
            color: #d5dae3;
            font-size: 15px;
        }

        .logo-text {
            font-size: 22px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: .2px;
            white-space: nowrap;
        }

        .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 10px;
            font-weight: 700;
            color: #0A0D0F;
            background: var(--primary);
            border-radius: 6px;
            padding: 1px 6px;
            margin-left: 6px;
            vertical-align: middle;
            letter-spacing: 1px;
        }

        .hero-h1 {
            font-size: clamp(32px, 6vw, 58px);
            font-weight: 900;
            line-height: 1.12;
            letter-spacing: .5px;
            margin: 18px 0 22px;
        }

        .hero-desc {
            max-width: 700px;
            margin: 0 auto;
            font-size: 16px;
            line-height: 1.9;
            color: #c2cad6;
        }

        .stat-item {
            border-left: 2px solid rgba(200, 243, 74, .3);
            padding-left: 14px;
        }

        .quick-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-align: center;
            gap: 12px;
            padding: 24px 12px;
            border-radius: var(--radius-lg);
            background: var(--bg-panel);
            border: 1px solid rgba(255, 255, 255, .04);
            transition: all .22s ease;
            min-height: 132px;
        }

        .quick-item:hover {
            transform: translateY(-4px);
            border-color: rgba(200, 243, 74, .35);
            box-shadow: var(--shadow-hover);
            background: var(--bg-raise);
        }

        .quick-icon {
            width: 46px;
            height: 46px;
            border-radius: 14px;
            background: rgba(200, 243, 74, .12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
        }

        .news-card {
            display: flex;
            flex-direction: column;
            height: 100%;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--bg-panel);
            border: 1px solid rgba(255, 255, 255, .04);
            box-shadow: var(--shadow-card);
            transition: transform .25s ease, border-color .25s ease;
        }

        .news-card:hover {
            transform: translateY(-5px);
            border-color: rgba(200, 243, 74, .3);
        }

        .news-cover {
            position: relative;
            height: 180px;
            overflow: hidden;
        }

        .news-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .3s ease;
        }

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

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

        .news-title {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.45;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 48px;
            margin-top: 12px;
            margin-bottom: 8px;
        }

        .news-summary {
            color: #9aa5b5;
            font-size: 14px;
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
            flex: 1;
        }

        .news-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .empty-state {
            background: var(--bg-panel);
            border: 1px dashed rgba(255, 255, 255, .1);
            border-radius: var(--radius-lg);
            padding: 60px 20px;
            text-align: center;
            color: var(--text-muted);
            font-size: 15px;
        }

        .level-card {
            display: flex;
            align-items: center;
            gap: 15px;
            background: var(--bg-panel);
            border-radius: var(--radius-lg);
            padding: 18px 20px;
        }

        .level-card.recommend {
            border: 1px solid rgba(200, 243, 74, .4);
            box-shadow: 0 0 0 1px rgba(200, 243, 74, .08), 0 10px 28px rgba(0, 0, 0, .24);
        }

        .bar-track {
            height: 8px;
            border-radius: 999px;
            background: #232C39;
            overflow: hidden;
        }

        .bar-fill {
            height: 100%;
            border-radius: 999px;
            background: linear-gradient(90deg, #9FD42B, var(--primary));
        }

        .table-compare {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
        }

        .table-compare th,
        .table-compare td {
            text-align: left;
            padding: 15px 18px;
            border-bottom: 1px solid rgba(255, 255, 255, .06);
            font-size: 14px;
            vertical-align: middle;
        }

        .table-compare th {
            font-weight: 700;
            font-size: 15px;
            color: #d8dde6;
        }

        .table-wrap {
            overflow-x: auto;
            background: var(--bg-panel);
            border-radius: var(--radius-xl);
            border: 1px solid rgba(255, 255, 255, .05);
        }

        .recommend-col {
            background: rgba(200, 243, 74, .06);
            position: relative;
            border-left: 2px solid rgba(200, 243, 74, .4);
            border-right: 2px solid rgba(200, 243, 74, .4);
        }

        .preview-card-large,
        .preview-card-small {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
        }

        .preview-card-large {
            min-height: 400px;
        }

        .preview-card-small {
            min-height: 190px;
        }

        .preview-card-large img,
        .preview-card-small img {
            position: absolute;
            width: 100%;
            height: 100%;
            object-fit: cover;
            left: 0;
            top: 0;
            transition: transform .3s ease;
        }

        .preview-card-large:hover img,
        .preview-card-small:hover img {
            transform: scale(1.03);
        }

        .preview-card-content {
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            padding: 20px 22px;
            z-index: 1;
            background: linear-gradient(180deg, transparent, rgba(9, 12, 16, .82));
        }

        .faq-item {
            border: 1px solid rgba(255, 255, 255, .06);
            background: var(--bg-panel);
            border-radius: var(--radius-lg);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color .2s ease;
        }

        .faq-item:hover {
            border-color: rgba(200, 243, 74, .22);
        }

        .faq-item.open {
            border-color: rgba(200, 243, 74, .4);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            text-align: left;
            padding: 18px 22px;
            background: transparent;
            color: #e2e7ee;
            font-size: 15px;
            font-weight: 600;
            gap: 14px;
            line-height: 1.5;
        }

        .faq-question .fa-plus {
            transition: transform .24s ease;
            color: var(--text-muted);
            font-size: 13px;
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .fa-plus {
            transform: rotate(45deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            opacity: 0;
            padding: 0 22px;
            transition: max-height .28s ease, opacity .25s ease, padding .25s ease;
        }

        .faq-item.open .faq-answer {
            opacity: 1;
            padding: 0 22px 20px;
        }

        .form-control {
            width: 100%;
            background: #0C1118;
            border: 1px solid #2C3646;
            color: var(--text-main);
            border-radius: 10px;
            font-size: 14px;
            padding: 13px 16px;
            outline: none;
            transition: border-color .2s ease, box-shadow .2s ease;
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(200, 243, 74, .12);
        }

        .form-control::placeholder {
            color: #5f6a7b;
        }

        .footer-main {
            background: #0C1016;
            border-top: 1px solid rgba(255, 255, 255, .04);
        }

        .footer-link {
            color: #a8b1bf;
            font-size: 14px;
            margin-bottom: 10px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-link:hover {
            color: var(--primary);
        }

        .back-top-btn {
            position: fixed;
            right: 22px;
            bottom: 22px;
            z-index: 60;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--bg-raise);
            border: 1px solid rgba(200, 243, 74, .3);
            color: var(--primary);
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            pointer-events: none;
            transition: opacity .25s ease, transform .2s ease;
        }

        .back-top-btn.show {
            opacity: 1;
            pointer-events: auto;
        }

        .back-top-btn:hover {
            transform: translateY(-3px);
        }

        @media(max-width:1023px) {
            .desktop-nav {
                display: none !important;
            }
            .header-wrap {
                grid-template-columns: 1fr auto 1fr;
            }
            .nav-left-mobile {
                display: flex;
                align-items: center;
            }
            .mobile-toggle {
                display: inline-flex;
            }
        }

        @media(min-width:1024px) {
            .mobile-nav-row {
                display: none !important;
            }
        }

/* roulang page: article */
:root {
            --primary: #C8F34A;
            --primary-dim: rgba(200, 243, 74, .12);
            --gold: #E0A32E;
            --bg-void: #090C10;
            --bg-raise: #131820;
            --bg-panel: #1B222D;
            --text-mist: #F0F4F8;
            --text-mute: #7C8799;
            --border-white: rgba(255, 255, 255, .06);
            --radius-card: 16px;
            --radius-hero: 24px;
            --shadow-deep: 0 10px 30px rgba(0, 0, 0, .4);
            --shadow-hover: 0 12px 34px rgba(0, 0, 0, .5);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            background: var(--bg-void);
            color: var(--text-mist);
            font-family: 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            outline: none;
        }

        button {
            cursor: pointer;
            border: none;
        }

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

        /* ===== 头部导航 ===== */
        .header-wrap {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            align-items: center;
            min-height: 76px;
            gap: 20px;
            position: relative;
        }

        .header-wrap>nav {
            justify-self: start;
        }

        .header-wrap>div:last-child {
            justify-self: end;
        }

        .logo-text {
            font-size: 21px;
            font-weight: 800;
            letter-spacing: .4px;
            color: var(--text-mist);
            transition: opacity .25s;
            white-space: nowrap;
            line-height: 1.2;
            gap: 9px;
        }

        .logo-text:hover {
            opacity: .88;
        }

        .logo-badge {
            font-size: 10px;
            font-weight: 700;
            color: var(--primary);
            border: 1px solid rgba(200, 243, 74, .35);
            padding: 3px 9px;
            border-radius: 6px;
            background: rgba(200, 243, 74, .08);
            letter-spacing: .6px;
            white-space: nowrap;
        }

        .nav-link {
            position: relative;
            font-size: 14px;
            font-weight: 600;
            color: #A7B1C0;
            padding: 7px 2px;
            letter-spacing: .3px;
            transition: color .25s;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 2px;
            background: var(--primary);
            border-radius: 4px;
            transform: scaleX(0);
            transform-origin: left center;
            transition: transform .3s ease;
        }

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

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

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

        .mobile-toggle {
            display: none;
        }

        .btn-primary {
            background: var(--primary);
            color: #0A0E13;
            font-weight: 800;
            font-size: 14px;
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 22px;
            line-height: 1;
            transition: background .25s, box-shadow .3s, transform .2s;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: #D8FF6A;
            box-shadow: 0 0 0 4px rgba(200, 243, 74, .13), 0 12px 28px rgba(200, 243, 74, .12);
            transform: translateY(-1px);
        }

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

        .btn-ghost-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1px solid rgba(255, 255, 255, .13);
            border-radius: 10px;
            color: var(--text-mist);
            padding: 11px 20px;
            font-size: 14px;
            font-weight: 600;
            background: rgba(255, 255, 255, .02);
            transition: border-color .3s, background .3s;
            white-space: nowrap;
        }

        .btn-ghost-outline:hover {
            border-color: rgba(200, 243, 74, .5);
            background: rgba(200, 243, 74, .07);
            color: var(--primary);
        }

        .mobile-menu-wrap {
            transform: translateX(-100%);
            transition: transform .35s cubic-bezier(.22, .68, .36, 1);
        }

        .mobile-menu-wrap.open {
            transform: translateX(0);
        }

        .mobile-menu-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 8px;
            color: var(--text-mist);
            font-size: 15px;
            font-weight: 600;
            border-bottom: 1px solid rgba(255, 255, 255, .04);
        }

        .mobile-menu-item:hover {
            color: var(--primary);
        }

        .mask {
            opacity: 0;
            pointer-events: none;
            transition: opacity .35s;
        }

        .mask.show {
            opacity: 1;
            pointer-events: auto;
        }

        /* ===== 文章 Hero ===== */
        .article-hero {
            background-size: cover;
            background-position: center center;
            position: relative;
            border-bottom: 1px solid rgba(255, 255, 255, .04);
        }

        .article-hero .hero-inner {
            background: linear-gradient(180deg, rgba(9, 12, 16, .55) 0%, rgba(9, 12, 16, .72) 42%, rgba(9, 12, 16, .88) 100%);
            position: relative;
            z-index: 2;
        }

        .crumb-item {
            font-size: 12px;
            color: var(--text-mute);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .crumb-item+i {
            color: var(--text-mute);
            font-size: 10px;
        }

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

        .cat-tag {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: rgba(200, 243, 74, .1);
            border: 1px solid rgba(200, 243, 74, .24);
            color: var(--primary);
            font-size: 12px;
            padding: 5px 13px;
            border-radius: 999px;
            font-weight: 700;
            letter-spacing: .4px;
        }

        .article-title {
            font-size: 42px;
            line-height: 1.25;
            font-weight: 800;
            letter-spacing: -0.3px;
            margin-top: 24px;
        }

        .hero-meta-line {
            display: flex;
            flex-wrap: wrap;
            gap: 18px 24px;
            margin-top: 22px;
            color: var(--text-mute);
            font-size: 13px;
        }

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

        .hero-meta-line i {
            color: var(--primary);
            font-size: 12px;
        }

        .dot-sep {
            width: 3px;
            height: 3px;
            border-radius: 50%;
            background: var(--text-mute);
        }

        /* ===== 文章正文排版 ===== */
        .article-card {
            background: var(--bg-raise);
            border: 1px solid var(--border-white);
            border-radius: var(--radius-hero);
            box-shadow: var(--shadow-deep);
            padding: 34px;
        }

        .article-body {
            font-size: 16px;
            line-height: 1.9;
            color: #CBD3DC;
        }

        .article-body p {
            margin: 0 0 20px;
        }

        .article-body h2 {
            font-size: 25px;
            font-weight: 800;
            color: var(--text-mist);
            border-left: 3px solid var(--primary);
            padding-left: 16px;
            margin: 40px 0 18px;
        }

        .article-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-mist);
            margin: 32px 0 14px;
        }

        .article-body ul,
        .article-body ol {
            margin: 0 0 20px;
            padding-left: 24px;
        }

        .article-body li {
            margin-bottom: 8px;
        }

        .article-body li::marker {
            color: var(--primary);
        }

        .article-body blockquote {
            border-left: 3px solid var(--primary);
            background: rgba(200, 243, 74, .055);
            padding: 16px 20px;
            margin: 24px 0;
            border-radius: 0 14px 14px 0;
            color: #D5DDE7;
        }

        .article-body a {
            color: var(--primary);
            border-bottom: 1px solid rgba(200, 243, 74, .3);
            font-weight: 600;
            transition: border-color .25s;
        }

        .article-body a:hover {
            border-color: var(--primary);
        }

        .article-body img {
            border-radius: 16px;
            border: 1px solid rgba(255, 255, 255, .08);
            margin: 28px 0;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 14.5px;
        }

        .article-body th {
            background: rgba(200, 243, 74, .08);
            color: var(--text-mist);
            text-align: left;
            padding: 11px 13px;
            border-bottom: 1px solid rgba(255, 255, 255, .1);
            font-weight: 700;
        }

        .article-body td {
            padding: 11px 13px;
            border-bottom: 1px solid rgba(255, 255, 255, .05);
            color: #AAB5C2;
        }

        .article-body td:first-child {
            color: var(--text-mist);
            font-weight: 600;
        }

        .article-body strong {
            color: var(--text-mist);
        }

        /* ===== 工具按钮 ===== */
        .tool-btn {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            border: 1px solid rgba(255, 255, 255, .1);
            background: rgba(255, 255, 255, .02);
            padding: 9px 16px;
            border-radius: 999px;
            color: #A1ACBA;
            font-size: 13px;
            font-weight: 600;
            transition: all .25s;
        }

        .tool-btn:hover {
            border-color: rgba(200, 243, 74, .35);
            color: var(--primary);
        }

        .tool-btn.liked,
        .tool-btn.liked i {
            color: var(--primary);
            border-color: rgba(200, 243, 74, .35);
        }

        .tool-btn.saved .fa-bookmark {
            color: var(--primary);
        }

        /* ===== 相关链接 ===== */
        .mini-card {
            border-radius: 16px;
            border: 1px solid rgba(255, 255, 255, .07);
            background: var(--bg-raise);
            overflow: hidden;
            display: block;
            transition: transform .3s, border-color .3s, box-shadow .3s;
        }

        .mini-card:hover {
            transform: translateY(-4px);
            border-color: rgba(200, 243, 74, .35);
            box-shadow: var(--shadow-hover);
        }

        .mini-card .cover {
            height: 116px;
            background-size: cover;
            background-position: center;
            position: relative;
            overflow: hidden;
        }

        .mini-card .cover::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent, rgba(9, 12, 16, .55));
        }

        .mini-card .text-box {
            padding: 16px 18px 18px;
        }

        .mini-card-title {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--text-mist);
        }

        .mini-card:hover .mini-card-title {
            color: var(--primary);
        }

        .section-title {
            font-size: 30px;
            font-weight: 800;
            color: var(--text-mist);
            line-height: 1.3;
            letter-spacing: -0.3px;
        }

        .section-more {
            font-size: 13px;
            color: var(--text-mute);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
        }

        .section-more:hover {
            color: var(--primary);
        }

        /* ===== 上下篇 / CTA ===== */
        .post-nav-link {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: 16px;
            padding: 18px 20px;
            background: rgba(255, 255, 255, .025);
            transition: all .3s;
        }

        .post-nav-link:hover {
            border-color: rgba(200, 243, 74, .28);
            background: rgba(200, 243, 74, .04);
        }

        .post-nav-link span {
            color: var(--text-mute);
            font-size: 12px;
        }

        .post-nav-link b {
            color: var(--text-mist);
            font-size: 15px;
            font-weight: 700;
            line-height: 1.4;
        }

        .post-nav-link:hover b {
            color: var(--primary);
        }

        .cta-banner {
            border-radius: var(--radius-hero);
            background: linear-gradient(135deg, rgba(200, 243, 74, .14) 0%, rgba(19, 24, 32, .1) 44%, rgba(19, 24, 32, .7) 100%), var(--bg-panel);
            border: 1px solid rgba(200, 243, 74, .2);
            position: relative;
            overflow: hidden;
        }

        .cta-banner::after {
            content: '';
            position: absolute;
            right: -100px;
            top: -100px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(200, 243, 74, .13) 0%, transparent 68%);
            pointer-events: none;
        }

        /* ===== 页脚 ===== */
        .footer-main {
            background: #0B0F13;
            border-top: 1px solid rgba(255, 255, 255, .04);
        }

        .footer-link {
            display: flex;
            align-items: center;
            gap: 9px;
            color: #98A3B1;
            font-size: 13px;
            padding: 7px 0;
            transition: color .25s, transform .25s;
        }

        .footer-link i {
            color: var(--text-mute);
            font-size: 10px;
            transition: color .25s, transform .25s;
        }

        .footer-link:hover {
            color: var(--primary);
            transform: translateX(4px);
        }

        .footer-link:hover i {
            color: var(--primary);
        }

        .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, .05);
        }

        .corner-qrcode {
            width: 86px;
            height: 86px;
            border-radius: 14px;
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .1);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* ===== 空状态 ===== */
        .empty-state {
            border-radius: 20px;
            border: 1px dashed rgba(255, 255, 255, .14);
            background: var(--bg-raise);
            padding: 60px 24px;
            text-align: center;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1023px) {
            .header-wrap>nav,
            .desktop-nav {
                display: none !important;
            }

            .header-wrap {
                display: flex;
                justify-content: space-between;
                align-items: center;
                gap: 12px;
                min-height: 68px;
            }

            .mobile-toggle {
                display: flex;
                margin-right: auto;
            }

            .header-wrap .logo-text {
                position: absolute;
                left: 50%;
                transform: translateX(-50%);
                font-size: 17px;
            }

            .logo-badge {
                font-size: 9px;
                padding: 2px 7px;
            }

            .header-wrap>div:last-child {
                display: none !important;
            }

            .article-title {
                font-size: 28px;
            }
        }

        @media (max-width: 767px) {
            .container-main {
                padding: 0 16px;
            }

            .section-title {
                font-size: 24px;
            }

            .article-card {
                padding: 22px 18px;
            }

            .article-body {
                font-size: 15px;
            }

            .article-body h2 {
                font-size: 21px;
            }
        }

        @media (max-width: 520px) {
            .logo-text {
                font-size: 15px;
                gap: 6px;
            }

            .btn-primary {
                padding: 8px 14px;
                font-size: 13px;
            }

            .article-hero .container-main {
                padding: 0 16px;
            }

            .article-title {
                font-size: 24px;
                line-height: 1.35;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            * {
                animation: none !important;
                transition-duration: .01ms !important;
            }
        }

/* roulang page: category1 */
:root {
  --primary: #C8F34A;
  --primary-soft: rgba(200,243,74,.12);
  --gold: #E0A32E;
  --void: #090C10;
  --panel: #131820;
  --raise: #1B222D;
  --mist: #F0F4F8;
  --mute: #7C8799;
  --border: rgba(255,255,255,.08);
  --radius-card: 16px;
  --radius-large: 24px;
  --shadow-default: 0 10px 30px rgba(0,0,0,.4);
  --shadow-hover: 0 12px 34px rgba(0,0,0,.5);
  --transition: .25s ease;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}
body {
  margin: 0;
  font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--void);
  color: var(--mist);
  line-height: 1.75;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  max-width: 100%;
  display: block;
}
button, input {
  font-family: inherit;
  font-size: inherit;
}
.container-main {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 22px;
  padding-right: 22px;
}

/* 页头导航 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(9, 12, 16, .9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,.05);
}
.header-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 76px;
  gap: 12px;
}
.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}
.header-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
}
.logo-text {
  display: inline-flex;
  align-items: center;
  font-size: 20px;
  font-weight: 900;
  letter-spacing: .4px;
  white-space: nowrap;
  position: relative;
  padding-right: 76px;
  color: var(--mist);
}
.logo-text .logo-badge {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 3px 10px;
  border: 1px solid rgba(200,243,74,.4);
  color: var(--primary);
  background: rgba(200,243,74,.08);
  border-radius: 99px;
  white-space: nowrap;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  font-size: 14px;
  font-weight: 600;
  color: #9ba6b6;
  padding: 8px 4px;
  transition: color var(--transition);
  border-bottom: 2px solid transparent;
}
.nav-link i {
  font-size: 12px;
  margin-right: 6px;
  opacity: .7;
}
.nav-link:hover {
  color: var(--mist);
}
.nav-link.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}
.nav-group2 {
  display: flex;
  align-items: center;
  gap: 22px;
}

.mobile-toggle {
  display: inline-flex;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--raise);
  color: var(--mist);
  border: 0;
  transition: all var(--transition);
}
.mobile-toggle:hover {
  background: #27313f;
  color: var(--primary);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 800;
  background: var(--primary);
  color: #0b0f0b;
  padding: 10px 22px;
  border-radius: 12px;
  border: 0;
  transition: .25s ease;
  cursor: pointer;
  box-shadow: 0 0 0 rgba(200,243,74,0);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(200,243,74,.22);
  color: #090C10;
}
.btn-primary:active {
  transform: translateY(1px);
  box-shadow: none;
}
.btn-primary:focus-visible,
.btn-ghost:focus-visible,
.mobile-toggle:focus-visible,
.faq-q:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(200,243,74,.35);
  outline-offset: 2px;
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--mist);
  border: 1px solid rgba(255,255,255,.16);
  background: rgba(255,255,255,.06);
  border-radius: 12px;
  padding: 10px 22px;
  transition: .3s ease;
  backdrop-filter: blur(6px);
}
.btn-ghost:hover {
  border-color: rgba(200,243,74,.45);
  color: var(--primary);
  background: rgba(200,243,74,.08);
  transform: translateY(-2px);
}

/* 抽屉菜单 */
.drawer-mask {
  opacity: 0;
  visibility: hidden;
  position: fixed;
  inset: 0;
  background: rgba(4,6,8,.7);
  z-index: 90;
  transition: .3s ease;
}
.drawer-mask.show {
  opacity: 1;
  visibility: visible;
}
.drawer-panel {
  transform: translateX(-105%);
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: min(84vw, 330px);
  background: #0d1117;
  z-index: 100;
  padding: 22px;
  transition: transform .35s ease;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.drawer-panel.show {
  transform: translateX(0);
}
.drawer-close {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,.1);
  background: transparent;
  color: var(--mist);
  cursor: pointer;
  margin-left: auto;
  transition: .2s ease;
}
.drawer-close:hover {
  color: var(--primary);
  border-color: var(--primary);
}
.drawer-nav-item {
  padding: 14px 12px;
  font-size: 15px;
  font-weight: 700;
  border-radius: 12px;
  color: #aab4c3;
  transition: .2s ease;
  border: 1px solid transparent;
}
.drawer-nav-item:hover {
  background: var(--raise);
  color: var(--primary);
}
.drawer-nav-item.active {
  background: var(--primary-soft);
  border-color: rgba(200,243,74,.18);
  color: var(--primary);
}
.drawer-cta {
  margin-top: auto;
}

/* hero */
.section-hero {
  position: relative;
  overflow: hidden;
  padding-top: 150px;
  padding-bottom: 100px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(98deg, rgba(9,12,16,.92) 0%, rgba(9,12,16,.62) 55%, rgba(9,12,16,.42) 100%);
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  border-radius: 99px;
  border: 1px solid rgba(200,243,74,.3);
  background: rgba(9,12,16,.55);
  backdrop-filter: blur(8px);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .4px;
}
.hero-tag .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 12px rgba(200,243,74,.8);
}
.hero-title {
  font-size: 54px;
  line-height: 1.16;
  font-weight: 900;
  letter-spacing: 1px;
  margin-top: 20px;
  margin-bottom: 22px;
}
.hero-title span {
  color: var(--primary);
}
.hero-desc {
  max-width: 650px;
  color: #c3ccd9;
  font-size: 16px;
  line-height: 1.85;
  margin: 0 0 32px;
}
.hero-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
  margin-top: 38px;
}
.hero-metric {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  color: #aeb8c7;
  padding: 8px 14px;
  border-radius: 12px;
  background: rgba(19,24,32,.7);
  border: 1px solid rgba(255,255,255,.05);
  backdrop-filter: blur(6px);
}
.hero-metric i {
  color: var(--primary);
}

/* section */
.section-pad {
  padding: 96px 0;
}
.section-head {
  margin-bottom: 50px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 30px;
}
.section-head h2 {
  font-size: 36px;
  line-height: 1.28;
  font-weight: 900;
  margin: 0;
  letter-spacing: .2px;
}
.section-head p {
  color: var(--mute);
  margin-top: 10px;
  max-width: 560px;
  font-size: 14px;
  line-height: 1.8;
}
.section-eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 9px;
}

/* cards generic */
.card-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  transition: all var(--transition);
}
.card-panel:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(200,243,74,.18);
}

.mobile-top-links {
  display: flex;
  gap: 20px;
}
.link-with-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #9ba6b6;
  font-size: 14px;
  font-weight: 600;
  transition: .2s ease;
}
.link-with-arrow:hover {
  color: var(--primary);
}
.link-with-arrow i {
  transition: transform .2s ease;
}
.link-with-arrow:hover i {
  transform: translateX(4px);
}

/* quick */
.quick-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.quick-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px 20px;
  text-align: left;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  transition: .25s ease;
}
.quick-card:hover {
  border-color: rgba(200,243,74,.2);
  background: var(--raise);
  transform: translateY(-3px);
}
.quick-icon {
  width: 44px;
  height: 44px;
  flex: none;
  border-radius: 12px;
  background: rgba(200,243,74,.1);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
}
.quick-text {
  font-size: 15px;
  font-weight: 800;
  color: var(--mist);
  margin: 2px 0 4px;
}
.quick-sub {
  font-size: 12px;
  line-height: 1.6;
  color: var(--mute);
  margin: 0;
}

/* columns section */
.column-grid-big {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 22px;
  align-items: stretch;
}
.big-content-card {
  position: relative;
  min-height: 360px;
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--panel);
  display: flex;
}
.big-content-card .img-half {
  flex: 0 0 45%;
  max-width: 45%;
  position: relative;
  overflow: hidden;
}
.big-content-card .img-half img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}
.big-content-card:hover .img-half img {
  transform: scale(1.04);
}
.big-content-card .info-half {
  padding: 30px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.content-badge {
  align-self: flex-start;
  padding: 5px 12px;
  background: rgba(200,243,74,.08);
  border: 1px solid rgba(200,243,74,.15);
  color: var(--primary);
  font-size: 12px;
  border-radius: 999px;
}
.content-title-lg {
  font-size: 23px;
  font-weight: 900;
  line-height: 1.4;
  color: var(--mist);
}
.content-summary {
  color: #98a3b3;
  font-size: 14px;
  line-height: 1.8;
  margin: 0;
}
.mini-point {
  margin-top: auto;
}
.mini-point li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #a9b3c1;
  margin-bottom: 6px;
}
.mini-point li i {
  color: var(--primary);
  font-size: 11px;
}
.vertical-card-stack {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.vertical-content-card {
  display: flex;
  align-items: center;
  background: var(--panel);
  border-radius: 18px;
  border: 1px solid var(--border);
  overflow: hidden;
  min-height: 170px;
  transition: .3s ease;
}
.vertical-content-card:hover {
  border-color: rgba(200,243,74,.24);
  transform: translateX(4px);
}
.v-card-img {
  width: 130px;
  flex: none;
  height: 100%;
  overflow: hidden;
}
.v-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.v-card-info {
  padding: 18px 20px;
}
.v-card-info h3 {
  font-size: 16px;
  font-weight: 800;
  line-height: 1.45;
  margin: 0 0 8px;
  color: var(--mist);
}
.v-card-info p {
  font-size: 13px;
  color: var(--mute);
  line-height: 1.7;
  margin: 0 0 10px;
}

/* step rows */
.step-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.step-row {
  background: linear-gradient(90deg, var(--panel), rgba(19,24,32,.5));
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 22px 24px;
  display: grid;
  grid-template-columns: 70px 1fr auto;
  align-items: center;
  gap: 18px;
  transition: .3s ease;
  position: relative;
  overflow: hidden;
}
.step-row::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--primary);
  opacity: 0;
  transition: .3s ease;
}
.step-row:hover {
  border-color: rgba(200,243,74,.25);
}
.step-row:hover::before {
  opacity: 1;
}
.step-num {
  font-size: 26px;
  font-weight: 900;
  color: rgba(200,243,74,.32);
  letter-spacing: -1px;
  line-height: 1;
  font-style: italic;
}
.step-info h3 {
  font-size: 16px;
  font-weight: 800;
  margin: 0 0 4px;
  color: var(--mist);
}
.step-info p {
  font-size: 13px;
  color: var(--mute);
  margin: 0;
  line-height: 1.7;
}
.step-arrow {
  color: var(--primary);
  font-size: 14px;
}

/* compare table */
.compare-wrap {
  overflow-x: auto;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--panel);
}
.compare-table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  font-size: 14px;
}
.compare-table th {
  padding: 18px 20px;
  text-align: left;
  font-weight: 800;
  color: #a9b3c1;
  background: #171e28;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.compare-table th.recommend-col {
  background: rgba(200,243,74,.08);
  color: var(--primary);
  position: relative;
}
.compare-table th .hint-badge {
  font-size: 10px;
  padding: 2px 8px;
  background: var(--primary);
  color: #090C10;
  border-radius: 99px;
  margin-left: 8px;
  font-weight: 900;
  vertical-align: middle;
}
.compare-table td {
  padding: 16px 20px;
  color: #c6cfda;
  border-bottom: 1px solid rgba(255,255,255,.04);
}
.compare-table tr:last-child td {
  border-bottom: 0;
}
.compare-table td.recommend-col {
  background: rgba(200,243,74,.05);
  color: #e8fbd0;
}
.compare-table td i {
  color: var(--primary);
  margin-right: 7px;
}
.compare-table tbody tr:hover td {
  background: rgba(27,34,45,.55);
}

/* cross-link box */
.cross-cta {
  background: linear-gradient(135deg, rgba(200,243,74,.08), transparent 40%);
  border: 1px solid rgba(200,243,74,.14);
}
.cross-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.cross-item {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 26px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: .3s ease;
}
.cross-item:hover {
  border-color: rgba(200,243,74,.22);
  transform: translateY(-3px);
}
.cross-item h3 {
  font-size: 17px;
  font-weight: 900;
  color: var(--mist);
  margin-bottom: 5px;
}
.cross-item p {
  color: var(--mute);
  font-size: 13px;
  margin: 0;
}
.link-icon {
  width: 38px;
  height: 38px;
  flex: none;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 14px;
}

/* faq */
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
}
.faq-item {
  margin-bottom: 14px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
  transition: border-color .25s ease;
}
.faq-item.open {
  border-color: rgba(200,243,74,.25);
}
.faq-q {
  padding: 20px 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-size: 15px;
  font-weight: 800;
  color: var(--mist);
  cursor: pointer;
  width: 100%;
  background: transparent;
  border: 0;
  text-align: left;
  transition: color .2s;
}
.faq-q:hover {
  color: var(--primary);
}
.faq-q .faq-label {
  font-size: 13px;
  color: var(--primary);
  background: rgba(200,243,74,.1);
  padding: 3px 9px;
  border-radius: 99px;
  flex: none;
}
.faq-icon {
  width: 30px;
  height: 30px;
  flex: none;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: .25s ease;
  color: var(--mute);
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
  color: var(--primary);
  border-color: var(--primary);
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}
.faq-a-inner {
  padding: 0 22px 20px;
  color: #96a1b1;
  font-size: 14px;
  line-height: 1.85;
}
.faq-item.open .faq-a {
  max-height: 400px;
}

/* cta */
.cta-banner {
  position: relative;
  border-radius: 28px;
  overflow: hidden;
  background: linear-gradient(130deg, rgba(200,243,74,.15) 0%, rgba(19,24,32,.95) 45%), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border: 1px solid rgba(200,243,74,.14);
  padding: 50px;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 40px;
  align-items: center;
}
.cta-banner h2 {
  font-size: 34px;
  font-weight: 900;
  margin: 0 0 14px;
  color: var(--mist);
  line-height: 1.3;
}
.cta-banner p {
  color: #aeb8c6;
  font-size: 14px;
  margin: 0 0 22px;
  line-height: 1.8;
}
.cta-feature {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
}
.cta-feature li {
  color: #d3dbe3;
  font-size: 13px;
  padding-left: 26px;
  position: relative;
  margin-bottom: 8px;
}
.cta-feature li::before {
  content: '\f00c';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  position: absolute;
  left: 0;
  color: var(--primary);
  font-size: 12px;
}
.cta-form-box {
  background: rgba(9,12,16,.72);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 22px;
  padding: 30px;
}
.cta-form-box label {
  font-size: 13px;
  color: #b8c1ce;
  display: block;
  margin-bottom: 7px;
  font-weight: 600;
}
.cta-form-box input {
  width: 100%;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 12px;
  height: 48px;
  padding: 0 16px;
  color: var(--mist);
  font-size: 14px;
  margin-bottom: 16px;
  transition: .2s ease;
}
.cta-form-box input::placeholder {
  color: #566273;
}
.cta-form-box input:focus {
  border-color: var(--primary);
  outline: none;
  box-shadow: 0 0 0 4px rgba(200,243,74,.08);
}
.form-status {
  font-size: 13px;
  color: var(--primary);
  margin-top: 10px;
  min-height: 20px;
}

/* footer */
.footer-main {
  background: #0b0f13;
  border-top: 1px solid var(--border);
  margin-top: 90px;
}
.footer-link {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #91a0b0;
  font-size: 13px;
  padding: 5px 0;
  transition: .2s ease;
  width: fit-content;
}
.footer-link:hover {
  color: var(--primary);
  padding-left: 3px;
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 22px;
  margin-top: 26px;
  border-top: 1px solid rgba(255,255,255,.05);
  color: #59647a;
  font-size: 12px;
}
.footer-denoter {
  color: #47515f;
  font-size: 12px;
  margin-top: 6px;
}
.back-top {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--raise);
  border: 1px solid rgba(255,255,255,.08);
  color: var(--primary);
  cursor: pointer;
  transition: .25s ease;
}
.back-top:hover {
  background: rgba(200,243,74,.1);
  transform: translateY(-3px);
  border-color: var(--primary);
}

/* mobile / responsive */
@media (max-width: 1024px) {
  .section-hero {
    padding-top: 120px;
    padding-bottom: 70px;
  }
  .hero-title {
    font-size: 42px;
  }
  .section-pad {
    padding: 74px 0;
  }
  .column-grid-big {
    grid-template-columns: 1fr;
  }
  .big-content-card {
    min-height: 280px;
  }
  .quick-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .cta-banner {
    grid-template-columns: 1fr;
    padding: 34px;
  }
  .logo-text {
    font-size: 17px;
    padding-right: 68px;
  }
  .logo-badge {
    font-size: 10px;
  }
  .header-grid {
    grid-template-columns: 1fr auto 1fr;
  }
}
@media (max-width: 768px) {
  .section-hero {
    padding-top: 100px;
    padding-bottom: 56px;
    text-align: left;
  }
  .hero-title {
    font-size: 34px;
  }
  .hero-desc {
    font-size: 15px;
  }
  .section-pad {
    padding: 64px 0;
  }
  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .section-head h2 {
    font-size: 28px;
  }
  .quick-grid {
    grid-template-columns: 1fr;
  }
  .big-content-card {
    flex-direction: column;
  }
  .big-content-card .img-half,
  .big-content-card .img-half img {
    flex: none;
    max-width: 100%;
    width: 100%;
    height: 180px;
  }
  .vertical-content-card {
    flex-direction: column;
    align-items: stretch;
  }
  .v-card-img {
    width: 100%;
    height: 130px;
  }
  .step-row {
    grid-template-columns: 44px 1fr;
    padding: 18px;
  }
  .step-arrow {
    display: none;
  }
  .cross-list {
    grid-template-columns: 1fr;
  }
  .cta-banner h2 {
    font-size: 26px;
  }
}
@media (max-width: 520px) {
  .container-main {
    padding-left: 16px;
    padding-right: 16px;
  }
  .header-grid {
    min-height: 68px;
  }
  .logo-text {
    font-size: 15px;
    padding-right: 0;
  }
  .logo-text .logo-badge {
    display: none;
  }
  .hero-title {
    font-size: 30px;
  }
  .btn-primary, .btn-ghost {
    padding: 9px 16px;
    font-size: 13px;
  }
  .big-content-card .info-half {
    padding: 22px 18px;
  }
  .content-title-lg {
    font-size: 19px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
  .cta-form-box {
    padding: 22px;
  }
}

/* roulang page: category3 */
:root {
            --bg: #090C10;
            --panel: #131820;
            --panel-lift: #1B222D;
            --primary: #C8F34A;
            --primary-soft: rgba(200, 243, 74, .12);
            --gold: #E0A32E;
            --text: #F0F4F8;
            --muted: #7C8799;
            --border: rgba(255, 255, 255, .08);
            --radius: 16px;
            --radius-lg: 24px;
            --radius-sm: 10px;
            --shadow: 0 10px 30px rgba(0, 0, 0, .4);
            --shadow-lg: 0 18px 40px rgba(0, 0, 0, .55);
            --font-main: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background: var(--bg);
            color: var(--text);
            font-family: var(--font-main);
            line-height: 1.75;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

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

        .header-wrap {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            align-items: center;
            height: 76px;
            gap: 24px;
        }

        .logo-text {
            color: var(--text);
            font-weight: 900;
            font-size: 22px;
            letter-spacing: .5px;
            position: relative;
            white-space: nowrap;
            gap: 10px;
        }

        .logo-badge {
            background: var(--primary-soft);
            color: var(--primary);
            border: 1px solid rgba(200, 243, 74, .3);
            font-size: 11px;
            padding: 2px 8px;
            border-radius: 20px;
            font-weight: 600;
            letter-spacing: .5px;
        }

        .nav-link {
            position: relative;
            color: rgba(240, 244, 248, .82);
            font-weight: 500;
            font-size: 14.5px;
            letter-spacing: .3px;
        }

        .nav-link:after {
            content: '';
            position: absolute;
            left: 0;
            right: 100%;
            bottom: -6px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: right .25s ease;
        }

        .nav-link:hover,
        .nav-link.active {
            color: var(--text);
        }

        .nav-link:hover:after,
        .nav-link.active:after {
            right: 0;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #090C10;
            font-weight: 800;
            font-size: 14px;
            border-radius: var(--radius-sm);
            padding: 12px 20px;
            border: 1px solid transparent;
            transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
            line-height: 1.2;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(200, 243, 74, .28);
            background: #d6fa6a;
        }

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

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: rgba(255, 255, 255, .04);
            color: var(--text);
            font-weight: 600;
            font-size: 14px;
            border-radius: var(--radius-sm);
            padding: 12px 20px;
            border: 1px solid rgba(255, 255, 255, .14);
            backdrop-filter: blur(8px);
            transition: border-color .25s ease, background .25s ease, transform .25s ease;
        }

        .btn-ghost:hover {
            border-color: rgba(200, 243, 74, .6);
            background: rgba(200, 243, 74, .08);
            color: var(--primary);
            transform: translateY(-2px);
        }

        .card-base {
            background: var(--panel);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }

        .hover-card {
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
        }

        .hover-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(200, 243, 74, .25);
        }

        .section-title {
            color: var(--text);
            font-weight: 800;
            letter-spacing: .5px;
            font-size: 32px;
            line-height: 1.3;
        }

        .section-desc {
            color: var(--muted);
            font-size: 15px;
            line-height: 1.8;
            max-width: 640px;
        }

        .online-dot {
            width: 8px;
            height: 8px;
            display: inline-block;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 0 4px rgba(200, 243, 74, .15), 0 0 12px rgba(200, 243, 74, .5);
        }

        .footer-main {
            background: #0B0F14;
            border-top: 1px solid var(--border);
        }

        .footer-link {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #8A93A2;
            font-size: 14px;
            padding: 6px 0;
        }

        .footer-link:hover {
            color: var(--primary);
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 90;
            background: rgba(9, 12, 16, .72);
            backdrop-filter: blur(6px);
            opacity: 0;
            visibility: hidden;
            transition: opacity .3s ease, visibility .3s ease;
        }

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

        .mobile-drawer-panel {
            position: absolute;
            top: 0;
            left: 0;
            width: min(320px, 86vw);
            height: 100%;
            background: #10151C;
            border-right: 1px solid var(--border);
            padding: 28px 20px;
            transform: translateX(-102%);
            transition: transform .35s ease;
            overflow-y: auto;
            box-shadow: 18px 0 50px rgba(0, 0, 0, .4);
        }

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

        .mobile-menu-link {
            display: block;
            padding: 14px 12px;
            color: rgba(240, 244, 248, .85);
            font-weight: 600;
            font-size: 15px;
            border-radius: 12px;
            margin-bottom: 4px;
            border: 1px solid transparent;
        }

        .mobile-menu-link:hover {
            background: rgba(255, 255, 255, .05);
            color: var(--primary);
            border-color: rgba(200, 243, 74, .2);
        }

        .faq-item {
            background: var(--panel);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            transition: border-color .3s ease, box-shadow .3s ease;
            overflow: hidden;
        }

        .faq-item.open {
            border-color: rgba(200, 243, 74, .35);
            box-shadow: 0 0 24px rgba(200, 243, 74, .06);
        }

        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            text-align: left;
            background: transparent;
            border: 0;
            padding: 20px 22px;
            color: var(--text);
            font-weight: 700;
            font-size: 15.5px;
            cursor: pointer;
            gap: 24px;
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            min-width: 28px;
            border-radius: 10px;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: transform .3s ease, background .3s ease;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #090C10;
        }

        .faq-answer {
            max-height: 0;
            opacity: 0;
            overflow: hidden;
            transition: max-height .45s ease, opacity .3s ease, padding .3s ease;
            color: var(--muted);
            padding: 0 22px;
            font-size: 14.5px;
            line-height: 1.8;
            border-top: 0 solid transparent;
        }

        .faq-item.open .faq-answer {
            max-height: 420px;
            opacity: 1;
            padding: 0 22px 22px;
            border-top: 1px solid rgba(255, 255, 255, .04);
            padding-top: 14px;
            margin-top: 0;
        }

        .page-hero {
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            border-radius: 30px;
            background: rgba(200, 243, 74, .1);
            border: 1px solid rgba(200, 243, 74, .24);
            color: var(--primary);
            font-weight: 700;
            font-size: 13px;
            letter-spacing: .5px;
        }

        .back-top {
            position: fixed;
            right: 26px;
            bottom: 26px;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: #090C10;
            border-radius: 14px;
            font-size: 16px;
            box-shadow: 0 10px 28px rgba(200, 243, 74, .25);
            z-index: 70;
            transition: transform .3s ease, box-shadow .3s ease;
        }

        .back-top:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 32px rgba(200, 243, 74, .38);
        }

        .step-item {
            position: relative;
        }

        .step-item:not(:last-child):after {
            content: '';
            position: absolute;
            top: 44px;
            left: 58px;
            right: -22px;
            height: 2px;
            background: linear-gradient(90deg, rgba(200, 243, 74, .55), rgba(255, 255, 255, .06));
            border-radius: 2px;
        }

        @media (max-width: 1024px) {
            .header-wrap {
                grid-template-columns: auto 1fr auto;
                height: 68px;
                gap: 16px;
            }
            .step-item:not(:last-child):after {
                display: none;
            }
            .page-hero {
                padding-top: 80px;
                padding-bottom: 48px;
            }
        }

        @media (max-width: 768px) {
            .container-main {
                padding: 0 18px;
            }
            .logo-text {
                font-size: 17px;
                gap: 6px;
            }
            .logo-badge {
                display: none;
            }
            .section-title {
                font-size: 26px;
            }
            .page-hero h1 {
                font-size: 34px !important;
            }
            .back-top {
                width: 40px;
                height: 40px;
                right: 16px;
                bottom: 16px;
            }
        }

        @media (max-width: 520px) {
            .container-main {
                padding: 0 14px;
            }
            .logo-text {
                font-size: 15px;
            }
            .faq-question {
                padding: 16px 16px;
                font-size: 14.5px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 16px;
                font-size: 14px;
            }
        }

/* roulang page: category2 */
:root {
            --void: #090C10;
            --panel: #131820;
            --raise: #1B222D;
            --primary: #C8F34A;
            --gold: #E0A32E;
            --mist: #F0F4F8;
            --mute: #7C8799;
            --border: rgba(255, 255, 255, .08);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow: 0 10px 30px rgba(0, 0, 0, .4);
            --shadow-hover: 0 12px 34px rgba(0, 0, 0, .5), 0 0 0 1px rgba(200, 243, 74, .12);
            --gap-section: 5.5rem;
            --gap-section-mobile: 3.5rem;
            font-synthesis: none;
            text-rendering: optimizeLegibility;
            -webkit-font-smoothing: antialiased;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            background: var(--void);
            color: var(--mist);
            line-height: 1.7;
            font-size: 15px;
            min-height: 100vh;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .22s ease, border-color .22s ease, background .22s ease, opacity .22s ease, transform .22s ease;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            background: none;
            border: none;
        }
        .container-main {
            width: min(1200px, 100% - 2rem);
            margin: 0 auto;
        }
        .container-wide {
            width: min(1200px, 100% - 2rem);
            margin: 0 auto;
        }

        /* header */
        .header-wrap {
            display: grid;
            grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
            align-items: center;
            min-height: 72px;
            gap: 12px;
        }
        .mobile-nav-row {
            display: flex;
            align-items: center;
        }
        .mobile-toggle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--mist);
        }
        .mobile-toggle:hover {
            color: var(--primary);
        }
        .nav-link {
            position: relative;
            font-size: 15px;
            font-weight: 600;
            color: rgba(240, 244, 248, .8);
            padding: 6px 2px;
            letter-spacing: .02em;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--primary);
        }
        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            border-radius: 999px;
            background: var(--primary);
            box-shadow: 0 0 12px rgba(200, 243, 74, .55);
        }
        .logo-text {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 900;
            font-size: 21px;
            color: var(--mist);
            letter-spacing: .01em;
            line-height: 1.2;
            white-space: nowrap;
        }
        .logo-text:hover {
            color: var(--primary);
        }
        .logo-badge {
            background: rgba(200, 243, 74, .12);
            border: 1px solid rgba(200, 243, 74, .35);
            color: var(--primary);
            font-size: 11px;
            font-weight: 700;
            padding: 3px 8px;
            border-radius: 999px;
            letter-spacing: .06em;
            line-height: 1.3;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #090C10;
            border: 1px solid transparent;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 800;
            padding: 10px 20px;
            transition: all .22s ease;
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: #d8ff70;
            transform: translateY(-1px);
            box-shadow: 0 8px 24px rgba(200, 243, 74, .28);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .22);
            color: var(--mist);
            border-radius: 10px;
            font-size: 14px;
            font-weight: 700;
            padding: 10px 20px;
            transition: all .22s ease;
            white-space: nowrap;
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-1px);
            background: rgba(200, 243, 74, .06);
        }

        /* mobile drawer */
        .mobile-drawer {
            position: fixed;
            top: 0;
            right: 0;
            width: min(84vw, 330px);
            height: 100vh;
            z-index: 1000;
            background: var(--void);
            border-left: 1px solid rgba(255, 255, 255, .08);
            box-shadow: 0 10px 60px rgba(0, 0, 0, .65);
            transform: translateX(102%);
            transition: transform .28s ease;
            display: flex;
            flex-direction: column;
            padding: 28px 22px 22px;
            overflow: auto;
        }
        .mobile-drawer.open {
            transform: translateX(0);
        }
        .drawer-mask {
            position: fixed;
            inset: 0;
            z-index: 999;
            background: rgba(0, 0, 0, .62);
            opacity: 0;
            pointer-events: none;
            transition: opacity .28s ease;
        }
        .drawer-mask.open {
            opacity: 1;
            pointer-events: auto;
        }
        .drawer-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 26px;
        }
        .drawer-head .logo-text {
            font-size: 17px;
        }
        .drawer-close {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            background: var(--raise);
            border: 1px solid rgba(255, 255, 255, .08);
            color: var(--mist);
            font-size: 15px;
        }
        .drawer-close:hover {
            color: var(--primary);
        }
        .drawer-links {
            display: flex;
            flex-direction: column;
        }
        .drawer-links a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 4px;
            border-bottom: 1px solid rgba(255, 255, 255, .06);
            font-size: 16px;
            font-weight: 600;
            color: var(--mist);
        }
        .drawer-links a:hover,
        .drawer-links a.active {
            color: var(--primary);
        }
        .drawer-foot {
            margin-top: auto;
            padding-top: 24px;
        }

        /* hero */
        .category-hero {
            position: relative;
            min-height: 460px;
            background-color: var(--void);
            background-position: center;
            background-size: cover;
            display: flex;
            align-items: center;
            overflow: hidden;
            border-bottom: 1px solid rgba(255, 255, 255, .05);
        }
        .category-hero .overlay,
        .category-hero .overlay-fade {
            position: absolute;
            inset: 0;
        }
        .category-hero .overlay {
            background: linear-gradient(90deg, rgba(9, 12, 16, .92) 0%, rgba(9, 12, 16, .72) 48%, rgba(9, 12, 16, .62) 100%);
        }
        .category-hero .overlay-fade {
            background: linear-gradient(180deg, rgba(9, 12, 16, .42) 0%, rgba(9, 12, 16, .76) 86%, var(--void) 100%);
        }
        .hero-inner {
            position: relative;
            z-index: 2;
            padding: 96px 0 80px;
        }
        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            border: 1px solid rgba(200, 243, 74, .28);
            background: rgba(200, 243, 74, .07);
            padding: 5px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: .1em;
            margin-bottom: 20px;
        }
        .hero-title {
            font-size: clamp(32px, 5vw, 56px);
            line-height: 1.18;
            font-weight: 900;
            max-width: 840px;
            margin-bottom: 20px;
        }
        .hero-title .accent {
            color: var(--primary);
        }
        .hero-desc {
            font-size: 16px;
            max-width: 730px;
            line-height: 1.85;
            color: rgba(240, 244, 248, .82);
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .hero-mini-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            margin-top: 46px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, .1);
            max-width: 730px;
        }
        .hero-stat {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(240, 244, 248, .78);
            font-size: 14px;
        }
        .hero-stat i {
            color: var(--gold);
        }

        /* section spacing */
        .section-space {
            padding-top: var(--gap-section);
            padding-bottom: var(--gap-section);
        }
        .section-head {
            max-width: 820px;
            margin-bottom: 42px;
        }
        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: .12em;
            margin-bottom: 12px;
        }
        .section-eyebrow::before {
            content: "";
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 999px;
        }
        .section-title {
            font-size: clamp(26px, 3.4vw, 36px);
            font-weight: 800;
            line-height: 1.28;
            letter-spacing: .01em;
        }
        .section-sub {
            font-size: 15px;
            color: var(--mute);
            margin-top: 14px;
            line-height: 1.8;
        }

        /* service index list */
        .service-index-wrap {
            background: var(--panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
        }
        .service-row {
            display: grid;
            grid-template-columns: 72px minmax(0, 1fr) auto;
            gap: 20px;
            align-items: center;
            padding: 26px 28px;
            border-bottom: 1px solid rgba(255, 255, 255, .07);
            transition: background .22s ease;
        }
        .service-row:last-child {
            border-bottom: none;
        }
        .service-row:hover {
            background: rgba(255, 255, 255, .025);
        }
        .service-index {
            width: 64px;
            height: 64px;
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(200, 243, 74, .09);
            border: 1px solid rgba(200, 243, 74, .26);
            color: var(--primary);
            font-size: 22px;
            font-weight: 900;
            line-height: 1;
        }
        .service-row:nth-child(2) .service-index {
            border-color: rgba(224, 163, 46, .35);
            color: var(--gold);
            background: rgba(224, 163, 46, .08);
        }
        .service-name {
            font-size: 18px;
            font-weight: 800;
            margin-bottom: 7px;
        }
        .service-desc {
            font-size: 14px;
            color: var(--mute);
            line-height: 1.75;
            max-width: 720px;
        }
        .service-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 700;
            white-space: nowrap;
        }
        .service-more i {
            transition: transform .22s ease;
        }
        .service-more:hover i {
            transform: translateX(4px);
        }
        .service-row:hover .service-more {
            color: var(--primary);
        }

        /* scene */
        .scene-grid {
            display: grid;
            grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
            gap: 56px;
            align-items: center;
        }
        .scene-media {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
        }
        .scene-media img,
        .scene-media {
            border: 1px solid rgba(255, 255, 255, .09);
            box-shadow: var(--shadow);
        }
        .scene-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(0, 0, 0, .04) 30%, rgba(0, 0, 0, .32) 100%);
        }
        .scene-badge {
            position: absolute;
            left: 20px;
            bottom: 20px;
            right: 20px;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 18px;
            border-radius: var(--radius-md);
            background: rgba(9, 12, 16, .78);
            border: 1px solid rgba(255, 255, 255, .12);
            backdrop-filter: blur(6px);
        }
        .scene-badge-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 12px var(--primary);
        }
        .scene-badge-text {
            font-size: 14px;
            font-weight: 700;
        }
        .scene-stack {
            display: flex;
            flex-direction: column;
            gap: 18px;
            margin-top: 28px;
        }
        .scene-item {
            display: grid;
            grid-template-columns: 44px 1fr;
            gap: 14px;
            align-items: start;
            border-left: 2px solid transparent;
            padding-left: 6px;
            border-radius: 4px;
        }
        .scene-item:hover {
            border-left-color: var(--primary);
        }
        .scene-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--raise);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 15px;
            border: 1px solid rgba(255, 255, 255, .06);
        }
        .scene-label {
            font-weight: 700;
            margin-bottom: 4px;
        }
        .scene-detail {
            color: var(--mute);
            font-size: 14px;
            line-height: 1.7;
        }

        /* levels */
        .levels-wrap {
            background: var(--panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 42px;
            display: grid;
            grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
            gap: 52px;
            align-items: center;
        }
        .level-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .level-item {
            display: grid;
            grid-template-columns: 112px 1fr;
            gap: 4px 18px;
            align-items: center;
            background: rgba(255, 255, 255, .03);
            padding: 16px 18px;
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, .06);
            transition: border-color .22s ease, background .22s ease;
        }
        .level-item.recommend {
            border-color: rgba(200, 243, 74, .45);
            box-shadow: 0 0 0 1px rgba(200, 243, 74, .08);
            background: rgba(200, 243, 74, .045);
        }
        .level-tag {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 800;
            color: var(--mist);
        }
        .level-tag i {
            color: var(--gold);
        }
        .level-meta {
            color: var(--mute);
            font-size: 13px;
            line-height: 1.6;
        }
        .recommend .level-meta {
            color: rgba(240, 244, 248, .72);
        }
        .level-note {
            font-size: 13px;
            color: var(--mute);
            margin-top: 18px;
            display: flex;
            gap: 10px;
            line-height: 1.7;
        }
        .level-note i {
            color: var(--gold);
        }

        /* steps */
        .steps-wrap {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 24px;
        }
        .step-item {
            padding: 24px;
            background: linear-gradient(180deg, rgba(19, 24, 32, .72), rgba(19, 24, 32, .36));
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
            position: relative;
        }
        .step-item:hover {
            transform: translateY(-4px);
            border-color: rgba(200, 243, 74, .42);
            box-shadow: var(--shadow-hover);
        }
        .step-num {
            font-size: 30px;
            font-weight: 900;
            line-height: 1;
            color: var(--primary);
            opacity: .8;
            margin-bottom: 16px;
        }
        .step-title {
            font-weight: 800;
            font-size: 17px;
            margin-bottom: 8px;
        }
        .step-desc {
            color: var(--mute);
            font-size: 13px;
            line-height: 1.7;
        }
        .step-arrow {
            margin-top: 16px;
            color: var(--primary);
            font-size: 15px;
        }

        /* compare table */
        .table-shell {
            overflow-x: auto;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            background: var(--panel);
        }
        .compare-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 720px;
        }
        .compare-table th,
        .compare-table td {
            padding: 18px 20px;
            text-align: left;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }
        .compare-table tr:last-child td {
            border-bottom: none;
        }
        .compare-table th {
            font-weight: 800;
            font-size: 14px;
            color: rgba(240, 244, 248, .9);
        }
        .compare-table td {
            color: var(--mute);
            font-size: 14px;
            line-height: 1.7;
        }
        .compare-table .feature-name {
            font-weight: 700;
            color: var(--mist);
        }
        .recommend-col {
            background: rgba(200, 243, 74, .07);
            border-left: 1px solid rgba(200, 243, 74, .25);
            border-right: 1px solid rgba(200, 243, 74, .25);
            color: var(--mist) !important;
            font-weight: 600;
        }
        .compare-table .recommend-head {
            position: relative;
            border-bottom: 2px solid var(--primary);
        }
        .recommend-badge {
            display: inline-block;
            background: var(--primary);
            color: #090C10;
            font-weight: 800;
            padding: 2px 8px;
            border-radius: 999px;
            font-size: 11px;
            margin-left: 6px;
            vertical-align: 2px;
            letter-spacing: .04em;
        }

        /* faq */
        .faq-center {
            max-width: 840px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--panel);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            padding: 0;
            overflow: hidden;
            transition: border-color .22s ease;
        }
        .faq-item:hover {
            border-color: rgba(200, 243, 74, .36);
        }
        .faq-q {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            text-align: left;
            gap: 16px;
            padding: 20px 22px;
            font-size: 16px;
            font-weight: 700;
            color: var(--mist);
            letter-spacing: .01em;
        }
        .faq-q .faq-icon {
            width: 32px;
            height: 32px;
            border-radius: 10px;
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--primary);
            transition: transform .3s ease, background .3s ease;
            flex-shrink: 0;
        }
        .faq-item.active .faq-icon {
            background: var(--primary);
            color: #090C10;
            transform: rotate(45deg);
        }
        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
        }
        .faq-a-inner {
            padding: 0 22px 22px;
            color: var(--mute);
            font-size: 14px;
            line-height: 1.85;
            border-top: 1px solid rgba(255, 255, 255, .05);
            margin: 0 22px 0;
            padding-top: 18px;
            padding-left: 0;
            padding-right: 0;
        }

        /* cta */
        .cta-panel {
            position: relative;
            background: linear-gradient(135deg, #171d1f 0%, var(--panel) 62%, rgba(200, 243, 74, .08) 150%);
            border: 1px solid rgba(200, 243, 74, .22);
            border-radius: var(--radius-lg);
            padding: clamp(28px, 5vw, 64px);
            overflow: hidden;
        }
        .cta-panel::before {
            content: "";
            position: absolute;
            right: -80px;
            top: -80px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(200, 243, 74, .09), transparent 70%);
        }
        .cta-panel .cta-grid {
            display: grid;
            grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
            gap: 40px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .cta-title {
            font-size: clamp(24px, 3vw, 34px);
            line-height: 1.3;
            font-weight: 900;
            margin-bottom: 14px;
        }
        .cta-desc {
            color: var(--mute);
            line-height: 1.8;
            font-size: 15px;
            margin-bottom: 22px;
            max-width: 520px;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .cta-feature {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 26px;
            color: var(--mist);
            font-size: 14px;
            font-weight: 600;
            margin-top: 18px;
        }
        .cta-feature i {
            color: var(--primary);
            margin-right: 6px;
        }
        .cta-qr {
            width: 200px;
            max-width: 100%;
            aspect-ratio: 1/1;
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, .12);
            background: rgba(9, 12, 16, .5);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            justify-self: center;
            gap: 8px;
            color: var(--mute);
        }
        .cta-qr i {
            color: var(--primary);
            font-size: 42px;
        }
        .cta-qr-text {
            font-size: 13px;
            font-weight: 600;
            color: rgba(240, 244, 248, .8);
        }

        /* cross link */
        .cross-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-top: 30px;
        }

        /* footer */
        .footer-main {
            background: var(--panel);
            border-top: 1px solid rgba(255, 255, 255, .06);
        }
        .footer-main .footer-link {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--mute);
            font-size: 14px;
            padding: 6px 0;
            transition: color .2s ease, transform .2s ease;
        }
        .footer-main .footer-link:hover {
            color: var(--primary);
            transform: translateX(2px);
        }
        .footer-main h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--mist);
            margin-bottom: 12px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .06);
            margin-top: 16px;
            padding-top: 20px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            align-items: center;
            text-align: center;
            color: var(--mute);
            font-size: 13px;
        }

        /* mobile responsive */
        @media (min-width: 1024px) {
            .mobile-nav-row {
                display: none !important;
            }
        }
        @media (max-width: 1023px) {
            .header-wrap {
                grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
            }
            .logo-text {
                font-size: 16px;
            }
            .logo-badge {
                display: none;
            }
            .hero-inner {
                padding-top: 70px;
                padding-bottom: 64px;
            }
            .service-row {
                grid-template-columns: 58px 1fr;
                gap: 14px;
                padding: 20px 16px;
            }
            .service-more {
                grid-column: 2 / 3;
            }
            .service-index {
                width: 52px;
                height: 52px;
                border-radius: 14px;
                font-size: 18px;
            }
            .scene-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .levels-wrap {
                grid-template-columns: 1fr;
                gap: 32px;
                padding: 24px 20px;
            }
            .steps-wrap {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-panel .cta-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .cta-qr {
                width: 100%;
                aspect-ratio: 3/1;
                flex-direction: row;
                gap: 16px;
            }
        }
        @media (max-width: 640px) {
            .section-space {
                padding-top: var(--gap-section-mobile);
                padding-bottom: var(--gap-section-mobile);
            }
            .hero-title {
                font-size: 33px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .service-index-wrap {
                border-radius: 18px;
            }
            .service-row {
                grid-template-columns: 1fr;
            }
            .service-more {
                grid-column: auto;
            }
            .steps-wrap {
                grid-template-columns: 1fr;
            }
            .level-item {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .section-title {
                font-size: 26px;
            }
        }
        @media (max-width: 520px) {
            .logo-text {
                font-size: 14px;
            }
            .header-wrap {
                gap: 8px;
                min-height: 64px;
            }
            .btn-primary.hidden\:lg\:inline-flex {
                display: none;
            }
        }