/* roulang page: index */
:root {
            --bgDeep: #081614;
            --bgCard: #0D1F1D;
            --bgRaise: #132926;
            --borderLine: rgba(255, 255, 255, .09);
            --textMain: #F2F6F5;
            --textSub: #A0B4AF;
            --brand: #00DDB8;
            --brandHover: #36F0CE;
            --amber: #FFC35C;
            --danger: #FB6F6F;
            --paper: #F6F5F1;
            --inkDeep: #23302D;
            --inkSub: #657773;
            --radius: 8px;
            --radiusSm: 6px;
            --shadowLight: 0 1px 0 rgba(255, 255, 255, .04);
            --container: 1240px;
            --fontStack: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background: var(--bgDeep);
            color: var(--textMain);
            font-family: var(--fontStack);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        body.nav-open {
            overflow: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
            object-fit: cover;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
            background: none;
            border: none;
        }
        ul,
        ol {
            list-style: none;
        }
        a:focus-visible,
        button:focus-visible,
        summary:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--brand);
            outline-offset: 3px;
            border-radius: 4px;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 32px;
        }
        .section {
            padding: 96px 0;
        }
        .section-head {
            max-width: 760px;
            margin-bottom: 48px;
        }
        .section-kicker {
            display: inline-block;
            font-size: 13px;
            font-weight: 800;
            letter-spacing: .04em;
            color: var(--brand);
            background: rgba(0, 221, 184, .08);
            border: 1px solid rgba(0, 221, 184, .16);
            border-radius: 999px;
            padding: 6px 14px;
            margin-bottom: 16px;
        }
        .section-kicker-amber {
            color: var(--amber);
            background: rgba(255, 195, 92, .08);
            border-color: rgba(255, 195, 92, .16);
        }
        .section-head h2 {
            font-size: clamp(30px, 5vw, 46px);
            line-height: 1.3;
            font-weight: 900;
            letter-spacing: 0;
        }
        .section-head p {
            font-size: 17px;
            color: var(--textSub);
            line-height: 1.9;
            margin-top: 12px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            height: 48px;
            padding: 0 28px;
            border-radius: var(--radiusSm);
            font-size: 15px;
            font-weight: 800;
            white-space: nowrap;
            border: 1px solid transparent;
            cursor: pointer;
            transition: background .2s ease, color .2s ease, border-color .2s ease, transform .15s ease, box-shadow .2s ease;
        }
        .btn-primary {
            background: var(--brand);
            color: #071312;
        }
        .btn-primary:hover {
            background: var(--brandHover);
            box-shadow: 0 0 0 4px rgba(0, 221, 184, .15);
            color: #071312;
        }
        .btn-primary:active {
            transform: translateY(1px);
        }
        .btn-ghost {
            background: transparent;
            border: 1px solid rgba(0, 221, 184, .55);
            color: #A9F6E7;
        }
        .btn-ghost:hover {
            background: rgba(0, 221, 184, .1);
            border-color: var(--brand);
            color: var(--brandHover);
        }
        .btn-ghost:active {
            transform: translateY(1px);
        }
        .btn-light {
            background: #fff;
            color: #1a2825;
        }
        .btn-light:hover {
            background: #dffcf6;
            box-shadow: 0 8px 20px rgba(0, 0, 0, .16);
            color: #111;
        }
        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--brand);
            font-weight: 700;
            font-size: 15px;
            position: relative;
        }
        .text-link::after {
            content: "";
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 100%;
            height: 1px;
            background: var(--brand);
            transform: scaleX(0);
            transform-origin: left center;
            transition: transform .24s ease;
        }
        .text-link:hover {
            color: var(--brandHover);
        }
        .text-link:hover::after {
            transform: scaleX(1);
        }
        .text-link .arrow {
            transition: transform .2s ease;
            display: inline-block;
        }
        .text-link:hover .arrow {
            transform: translateX(4px);
        }
        .empty-state {
            border: 1px dashed var(--borderLine);
            border-radius: var(--radius);
            background: rgba(255, 255, 255, .02);
            padding: 36px 26px;
            font-size: 16px;
            color: var(--textSub);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* header */
        .nav-toggle {
            position: fixed;
            left: -9999px;
            opacity: 0;
            pointer-events: none;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 60;
            background: rgba(8, 22, 20, .86);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, .07);
        }
        .header-row {
            display: flex;
            align-items: center;
            gap: 24px;
            height: 76px;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .brand-mark {
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--brand), #16b49a);
            color: #05110F;
            font-size: 18px;
            font-weight: 900;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 14px rgba(0, 221, 184, .2);
        }
        .brand-name {
            font-size: 19px;
            font-weight: 900;
            letter-spacing: 0;
            color: var(--textMain);
            white-space: nowrap;
        }
        .site-nav {
            margin-left: auto;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-item {
            position: relative;
        }
        .nav-link {
            display: inline-block;
            padding: 9px 14px;
            border-radius: 6px;
            font-size: 15px;
            font-weight: 600;
            color: var(--textSub);
            transition: color .2s ease, background .2s ease;
            position: relative;
        }
        .nav-link::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 4px;
            height: 2px;
            background: linear-gradient(90deg, var(--brand), var(--brandHover));
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: left center;
            transition: transform .22s ease;
        }
        .nav-link:hover {
            color: var(--textMain);
        }
        .nav-link:hover::after,
        .nav-item.active .nav-link::after,
        .nav-item.active .nav-link {
            color: var(--textMain);
            transform: scaleX(1);
        }
        .nav-cta {
            margin-left: 10px;
        }
        .nav-cta .btn-nav {
            display: inline-flex;
            align-items: center;
            height: 38px;
            padding: 0 18px;
            border-radius: 6px;
            font-weight: 800;
            font-size: 14px;
            color: #071312;
            background: var(--brand);
            transition: background .2s, box-shadow .2s;
        }
        .nav-cta .btn-nav:hover {
            background: var(--brandHover);
            box-shadow: 0 0 0 4px rgba(0, 221, 184, .15);
        }
        .mega-trigger {
            cursor: pointer;
        }
        .mega-panel {
            position: absolute;
            top: calc(100% + 12px);
            left: -300px;
            width: min(880px, 90vw);
            background: #0E211D;
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: 12px;
            box-shadow: 0 20px 50px rgba(0, 0, 0, .38);
            padding: 24px;
            display: grid;
            grid-template-columns: 1.1fr 1.2fr 1.3fr;
            gap: 24px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: opacity .2s ease, transform .2s ease, visibility .2s;
            z-index: 80;
        }
        .nav-item.has-mega:hover .mega-panel,
        .nav-item.has-mega:focus-within .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .mega-panel h4 {
            font-size: 13px;
            color: var(--textSub);
            font-weight: 700;
            letter-spacing: .02em;
            margin-bottom: 14px;
            line-height: 1.4;
        }
        .mega-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .mega-links a {
            color: var(--textSub);
            font-size: 14px;
            padding: 6px 4px;
            border-radius: 4px;
            transition: color .16s ease, background .16s ease;
        }
        .mega-links a:hover {
            color: var(--textMain);
            background: rgba(255, 255, 255, .04);
        }
        .mega-cards {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .mega-mini {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            background: rgba(255, 255, 255, .025);
            border-radius: 8px;
            border: 1px solid transparent;
            transition: border-color .18s, background .18s;
        }
        .mega-mini:hover {
            border-color: rgba(0, 221, 184, .25);
            background: rgba(0, 221, 184, .05);
        }
        .mega-mini img {
            width: 56px;
            height: 38px;
            border-radius: 5px;
            object-fit: cover;
        }
        .mega-mini-text {
            font-size: 14px;
            color: var(--textSub);
            line-height: 1.5;
        }
        .mega-mini-text strong {
            color: var(--textMain);
            font-weight: 700;
            display: block;
            font-size: 14px;
            margin-bottom: 2px;
        }
        .mega-cover {
            width: 100%;
            aspect-ratio: 16 / 10;
            border-radius: 10px;
            background-position: center;
            background-size: cover;
            background-color: var(--bgRaise);
            display: flex;
            align-items: flex-end;
            padding: 16px;
            position: relative;
            overflow: hidden;
        }
        .mega-cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(8, 22, 20, .9), transparent 60%);
        }
        .mega-cover-content {
            position: relative;
            z-index: 2;
            color: #fff;
        }
        .mega-cover-content p {
            font-size: 14px;
            margin-bottom: 4px;
            color: var(--textMain);
        }
        .mega-cover-content .link-tag {
            font-size: 13px;
            color: var(--brand);
        }
        .burger {
            display: none;
            width: 44px;
            height: 44px;
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: 8px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            position: relative;
            margin-left: auto;
        }
        .burger span,
        .burger span::before,
        .burger span::after {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--textMain);
            border-radius: 2px;
            content: "";
            transition: transform .22s ease, top .22s ease, opacity .22s ease;
            position: relative;
        }
        .burger span::before {
            position: absolute;
            top: -6px;
        }
        .burger span::after {
            position: absolute;
            top: 6px;
        }
        .nav-toggle:checked ~ .site-header .burger span {
            background: transparent;
        }
        .nav-toggle:checked ~ .site-header .burger span::before {
            top: 0;
            transform: rotate(45deg);
        }
        .nav-toggle:checked ~ .site-header .burger span::after {
            top: 0;
            transform: rotate(-45deg);
        }

        /* hero */
        .hero {
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid rgba(255, 255, 255, .07);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            background-color: #081614;
        }
        .hero-bg::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(92deg, rgba(8, 22, 20, .97) 0%, rgba(8, 22, 20, .9) 46%, rgba(8, 22, 20, .48) 100%);
        }
        .hero-inner {
            position: relative;
            z-index: 3;
            display: grid;
            grid-template-columns: minmax(0, 1.05fr) minmax(290px, .8fr);
            gap: 58px;
            align-items: center;
            padding: 96px 0 88px;
        }
        .hero h1 {
            font-size: clamp(42px, 6vw, 72px);
            font-weight: 900;
            line-height: 1.18;
            letter-spacing: 0;
            margin-bottom: 20px;
            color: #FFFFFF;
        }
        .hero-sub {
            font-size: 18px;
            line-height: 1.9;
            color: #BECCC7;
            max-width: 620px;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 36px;
        }
        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 14px 22px;
            color: var(--textSub);
            font-size: 14px;
        }
        .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .hero-meta i {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--brand);
            display: inline-block;
            box-shadow: 0 0 0 4px rgba(0, 221, 184, .1);
        }
        .hero-visual {
            background: var(--bgRaise);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: 14px;
            padding: 12px;
            box-shadow: 0 30px 70px rgba(0, 0, 0, .35);
        }
        .hero-pane {
            border-radius: 8px;
            overflow: hidden;
            background: var(--bgDeep);
        }
        .hero-pane-img {
            width: 100%;
            aspect-ratio: 4 / 3;
        }
        .hero-pane-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .hero-pane-bottom {
            padding: 18px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 14px;
        }
        .hero-pane-bottom p {
            font-size: 14px;
            color: var(--textSub);
        }
        .hero-pane-bottom strong {
            display: block;
            color: var(--textMain);
            font-size: 15px;
            font-weight: 800;
            margin-bottom: 2px;
        }

        /* quick line */
        .quick-line {
            background: #0B1917;
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }
        .quick-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            padding: 20px 0;
        }
        .quick-item {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            color: var(--textSub);
        }
        .quick-item .quick-dot {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: rgba(0, 221, 184, .08);
            border: 1px solid rgba(0, 221, 184, .14);
            color: var(--brand);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 14px;
            flex-shrink: 0;
        }

        /* feature asymmetric */
        .feature-grid {
            display: grid;
            grid-template-columns: 1.1fr .9fr;
            gap: 20px;
        }
        .feature-main {
            border: 1px solid var(--borderLine);
            border-radius: 12px;
            background: linear-gradient(160deg, #12302B, #0D1F1D 65%);
            padding: 44px;
            min-height: 380px;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            justify-content: flex-end;
            position: relative;
            overflow: hidden;
        }
        .feature-main::before {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            width: 44%;
            height: 46%;
            background: radial-gradient(circle at 70% 30%, rgba(0, 221, 184, .12), transparent 70%);
        }
        .feature-main-img {
            position: absolute;
            width: 46%;
            height: 52%;
            right: -2%;
            top: 0;
            border-radius: 0 0 0 10px;
            overflow: hidden;
            opacity: .55;
        }
        .feature-main-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .feature-content {
            position: relative;
            z-index: 3;
        }
        .feature-content h3 {
            font-size: 26px;
            font-weight: 900;
            margin: 14px 0 10px;
        }
        .feature-content p {
            color: var(--textSub);
            font-size: 16px;
            line-height: 1.8;
            max-width: 440px;
        }
        .feature-entry {
            margin-top: 22px;
        }
        .feature-kicker {
            color: var(--amber);
            font-size: 13px;
            font-weight: 800;
            letter-spacing: .04em;
        }
        .feature-side {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .feature-side-card {
            border: 1px solid var(--borderLine);
            border-radius: 12px;
            background: #0D1F1D;
            padding: 28px 30px;
            display: flex;
            align-items: center;
            gap: 22px;
            flex: 1;
            transition: background .2s ease, border-color .2s ease, transform .2s ease;
        }
        .feature-side-card:hover {
            background: #102824;
            border-color: rgba(0, 221, 184, .26);
            transform: translateY(-2px);
        }
        .feature-side-icon {
            width: 56px;
            height: 56px;
            border-radius: 12px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 900;
            color: var(--brand);
            background: rgba(0, 221, 184, .1);
            border: 1px solid rgba(0, 221, 184, .2);
            flex-shrink: 0;
        }
        .feature-side-card.amber .feature-side-icon {
            color: var(--amber);
            background: rgba(255, 195, 92, .1);
            border-color: rgba(255, 195, 92, .2);
        }
        .feature-side-card h4 {
            font-size: 17px;
            font-weight: 800;
            margin-bottom: 6px;
        }
        .feature-side-card p {
            font-size: 14px;
            color: var(--textSub);
            line-height: 1.7;
        }
        .feature-side-card .link-mini {
            display: inline-flex;
            align-items: center;
            gap: 2px;
            color: var(--brand);
            font-size: 13px;
            font-weight: 700;
            margin-top: 8px;
        }
        .feature-side-card .link-mini:hover {
            color: var(--brandHover);
        }
        .feature-side-card .link-mini .arrow {
            transition: transform .2s ease;
        }
        .feature-side-card .link-mini:hover .arrow {
            transform: translateX(4px);
        }

        /* demo scenario */
        .demo-section {
            background: #0A1816;
            border-top: 1px solid rgba(255, 255, 255, .06);
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }
        .demo-wrap {
            display: grid;
            grid-template-columns: minmax(0, 1.5fr) minmax(260px, .7fr);
            gap: 64px;
        }
        .demo-window {
            background: #0A1514;
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 16px 46px rgba(0, 0, 0, .35);
        }
        .demo-top {
            background: #13211E;
            padding: 14px 18px;
            display: flex;
            align-items: center;
            gap: 8px;
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }
        .demo-top i {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            display: inline-block;
            background: #566965;
        }
        .demo-top i:nth-child(1) {
            background: var(--danger);
        }
        .demo-top i:nth-child(2) {
            background: var(--amber);
        }
        .demo-top i:nth-child(3) {
            background: var(--brand);
        }
        .demo-address {
            background: rgba(255, 255, 255, .04);
            border-radius: 5px;
            font-size: 12px;
            color: var(--textSub);
            padding: 4px 12px;
            margin-left: 12px;
            flex: 1;
            max-width: 280px;
            overflow: hidden;
            white-space: nowrap;
            text-overflow: ellipsis;
        }
        .demo-stage {
            display: grid;
            grid-template-columns: 1fr 1fr;
        }
        .demo-stage-img {
            background: var(--bgRaise);
        }
        .demo-stage-img img {
            width: 100%;
            height: 100%;
            min-height: 300px;
            object-fit: cover;
        }
        .demo-stage-copy {
            padding: 32px 34px;
            background: rgba(11, 23, 22, .83);
        }
        .demo-stage-copy h4 {
            font-size: 22px;
            font-weight: 900;
            margin-bottom: 14px;
        }
        .demo-stage-copy p {
            color: var(--textSub);
            font-size: 15px;
            margin-bottom: 22px;
        }
        .demo-tagline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--brand);
            font-size: 13px;
            font-weight: 800;
            background: rgba(0, 221, 184, .07);
            border: 1px solid rgba(0, 221, 184, .15);
            padding: 6px 12px;
            border-radius: 999px;
        }
        .demo-steps {
            counter-reset: demo;
            display: flex;
            flex-direction: column;
            gap: 26px;
        }
        .demo-step {
            position: relative;
            padding-left: 66px;
            counter-increment: demo;
        }
        .demo-step::before {
            content: "0" counter(demo);
            position: absolute;
            left: 0;
            top: 2px;
            width: 46px;
            height: 42px;
            border-radius: 10px;
            background: rgba(255, 195, 92, .1);
            border: 1px solid rgba(255, 195, 92, .2);
            color: var(--amber);
            font-weight: 900;
            font-size: 16px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }
        .demo-step h4 {
            font-size: 18px;
            font-weight: 800;
            margin-bottom: 4px;
        }
        .demo-step p {
            color: var(--textSub);
            font-size: 14px;
            line-height: 1.7;
            max-width: 420px;
        }

        /* proof */
        .proof-wrap .section-head {
            max-width: 640px;
        }
        .proof-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 32px;
        }
        .proof-badge {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--textMain);
            background: var(--bgCard);
            border: 1px solid var(--borderLine);
            border-radius: 999px;
            padding: 10px 18px;
            font-weight: 700;
            transition: border-color .2s, background .2s;
        }
        .proof-badge::before {
            content: "";
            width: 7px;
            height: 7px;
            background: var(--brand);
            border-radius: 50%;
        }
        .proof-badge:nth-child(even)::before {
            background: var(--amber);
        }
        .proof-badge:hover {
            border-color: rgba(0, 221, 184, .28);
            background: #102a25;
        }
        .proof-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .proof-card {
            border: 1px solid var(--borderLine);
            background: var(--bgCard);
            border-radius: 12px;
            padding: 30px;
            transition: transform .2s ease, border-color .2s ease, background .2s ease;
        }
        .proof-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 221, 184, .24);
            background: #102B26;
        }
        .proof-card-tag {
            color: var(--amber);
            font-size: 13px;
            font-weight: 800;
            margin-bottom: 10px;
        }
        .proof-card h3 {
            font-size: 18px;
            font-weight: 800;
            margin-bottom: 8px;
        }
        .proof-card p {
            color: var(--textSub);
            font-size: 14px;
        }

        /* news */
        .news-section {
            background: #0B1917;
            border-top: 1px solid rgba(255, 255, 255, .06);
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }
        .news-feature {
            display: grid;
            grid-template-columns: 1.2fr .8fr;
            gap: 0;
            background: #0D1F1D;
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: 14px;
            overflow: hidden;
            margin-bottom: 20px;
            transition: border-color .2s;
        }
        .news-feature:hover {
            border-color: rgba(0, 221, 184, .24);
        }
        .news-feature-photo {
            position: relative;
            min-height: 260px;
            overflow: hidden;
            background: var(--bgRaise);
        }
        .news-feature-photo img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
            transition: transform .4s ease;
        }
        .news-feature:hover .news-feature-photo img {
            transform: scale(1.03);
        }
        .news-feature-body {
            padding: 34px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: flex-start;
        }
        .news-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
        }
        .news-cat {
            font-size: 13px;
            font-weight: 800;
            background: rgba(0, 221, 184, .1);
            border: 1px solid rgba(0, 221, 184, .16);
            color: var(--brand);
            padding: 3px 12px;
            border-radius: 999px;
        }
        .news-date {
            font-size: 13px;
            color: var(--textSub);
        }
        .news-feature-body h3 {
            font-size: 24px;
            line-height: 1.55;
            font-weight: 900;
            margin-bottom: 10px;
            transition: color .2s;
        }
        .news-feature:hover .news-feature-body h3 {
            color: var(--brandHover);
        }
        .news-feature-body p {
            color: var(--textSub);
            font-size: 15px;
            max-width: 560px;
            margin-bottom: 18px;
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .news-card {
            background: var(--bgCard);
            border: 1px solid var(--borderLine);
            border-radius: 12px;
            overflow: hidden;
            display: block;
            transition: transform .2s ease, border-color .2s ease, background .2s ease;
        }
        .news-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 221, 184, .26);
            background: #102824;
        }
        .news-card-photo {
            aspect-ratio: 16 / 9;
            background: var(--bgRaise);
            overflow: hidden;
        }
        .news-card-photo img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .35s ease;
        }
        .news-card:hover .news-card-photo img {
            transform: scale(1.04);
        }
        .news-card-body {
            padding: 20px 22px 24px;
        }
        .news-card-body .news-meta {
            margin-bottom: 10px;
        }
        .news-card-body h3 {
            font-size: 18px;
            line-height: 1.6;
            font-weight: 800;
            margin-bottom: 8px;
            transition: color .2s;
        }
        .news-card:hover .news-card-body h3 {
            color: var(--brandHover);
        }
        .news-card-body p {
            color: var(--textSub);
            font-size: 14px;
            line-height: 1.75;
        }
        .link-more {
            margin-top: 14px;
            color: var(--brand);
            font-size: 14px;
            font-weight: 800;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .link-more .arrow {
            transition: transform .2s;
        }
        .news-card:hover .link-more .arrow {
            transform: translateX(5px);
        }
        .news-empty {
            grid-column: 1 / -1;
        }

        /* FAQ */
        .faq-panel {
            max-width: 980px;
            margin: 0 auto;
        }
        .faq-list {
            border-top: 1px solid rgba(255, 255, 255, .1);
            border-bottom: 1px solid rgba(255, 255, 255, .1);
        }
        .faq-item {
            border-bottom: 1px solid rgba(255, 255, 255, .08);
            padding: 4px 0;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-item summary {
            list-style: none;
            cursor: pointer;
            display: grid;
            grid-template-columns: 46px 1fr auto;
            gap: 14px;
            align-items: center;
            padding: 22px 8px;
            font-size: 17px;
            font-weight: 800;
            transition: color .2s;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item[open] summary {
            color: var(--brandHover);
        }
        .faq-q {
            width: 34px;
            height: 34px;
            background: rgba(0, 221, 184, .08);
            border: 1px solid rgba(0, 221, 184, .18);
            color: var(--brand);
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 900;
        }
        .faq-sign {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, .18);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--textSub);
            transition: transform .2s ease, background .2s ease;
        }
        .faq-item[open] .faq-sign {
            transform: rotate(45deg);
            background: var(--brand);
            color: #071312;
            border-color: var(--brand);
        }
        .faq-answer {
            padding: 0 8px 26px 60px;
            color: #93AAA5;
            font-size: 15px;
            max-width: 760px;
            line-height: 1.9;
        }

        /* panel CTA */
        .cta-section {
            padding: 40px 0 100px;
        }
        .cta-panel {
            position: relative;
            border-radius: 18px;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, .1);
            background: #0D1F1D;
        }
        .cta-panel-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: .36;
        }
        .cta-panel-bg::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, #081614 0%, rgba(8, 22, 20, .6) 100%);
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            padding: 64px;
        }
        .cta-inner h3 {
            font-size: clamp(28px, 4.6vw, 44px);
            font-weight: 900;
            line-height: 1.3;
            margin-bottom: 12px;
        }
        .cta-inner p {
            color: #CFDBD7;
            font-size: 16px;
            max-width: 620px;
            margin-bottom: 26px;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        /* convert fixed */
        .convert-bar {
            position: fixed;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 50;
            background: rgba(10, 27, 25, .95);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-top: 1px solid rgba(255, 255, 255, .12);
            padding: 14px 0;
            transform: translateY(0);
            transition: transform .28s ease, opacity .28s ease, visibility .28s ease;
            visibility: visible;
        }
        .convert-bar.is-hidden,
        .convert-bar.is-closed {
            transform: translateY(100%);
            opacity: 0;
            visibility: hidden;
        }
        .convert-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .convert-copy {
            display: flex;
            align-items: center;
            gap: 14px;
            color: var(--textMain);
            font-weight: 700;
            font-size: 15px;
        }
        .convert-copy .convert-dot {
            width: 8px;
            height: 8px;
            background: var(--brand);
            border-radius: 50%;
            box-shadow: 0 0 0 5px rgba(0, 221, 184, .14);
            flex-shrink: 0;
        }
        .convert-inner .btn {
            height: 40px;
            font-size: 14px;
            padding: 0 18px;
        }
        .convert-close {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, .16);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--textSub);
            cursor: pointer;
            transition: background .18s, color .18s, border-color .18s;
        }
        .convert-close:hover {
            background: rgba(255, 255, 255, .06);
            border-color: rgba(255, 255, 255, .3);
            color: #fff;
        }

        /* footer */
        .site-footer {
            background: #060F0E;
            border-top: 1px solid rgba(255, 255, 255, .07);
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1.1fr 1.4fr;
            gap: 48px;
            padding: 80px 0 54px;
        }
        .footer-brand .brand-name {
            font-size: 20px;
            margin-bottom: 14px;
        }
        .footer-brand p {
            color: var(--textSub);
            font-size: 14px;
            max-width: 300px;
            line-height: 1.9;
        }
        .footer-col h4 {
            color: #EAF3F0;
            font-size: 16px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            color: var(--textSub);
            font-size: 14px;
            transition: color .16s ease, transform .16s ease;
            display: inline-flex;
            width: fit-content;
        }
        .footer-links a:hover {
            color: var(--brandHover);
            transform: translateX(4px);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .07);
            padding: 22px 0;
        }
        .footer-bottom-inner {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            font-size: 13px;
            color: #6F837F;
        }
        .footer-bottom-inner a {
            color: #6F837F;
            transition: color .16s;
        }
        .footer-bottom-inner a:hover {
            color: var(--brandHover);
        }

        /* responsive */
        @media (max-width: 1200px) {
            .mega-panel {
                left: -350px;
            }
            .mega-panel {
                grid-template-columns: 1fr .9fr 1.2fr;
            }
            .feature-main-img {
                opacity: .3;
            }
        }
        @media (max-width: 992px) {
            .container {
                padding: 0 24px;
            }
            .section {
                padding: 72px 0;
            }
            .burger {
                display: inline-flex;
            }
            .nav-cta {
                display: none;
            }
            .site-nav {
                position: absolute;
                left: 0;
                right: 0;
                top: 76px;
                background: #081614;
                border-bottom: 1px solid rgba(255, 255, 255, .08);
                max-height: 0;
                overflow: hidden;
                opacity: 0;
                visibility: hidden;
                transition: max-height .28s ease, opacity .2s ease, visibility .2s;
                margin-left: 0;
            }
            .nav-toggle:checked ~ .site-header .site-nav {
                max-height: 640px;
                opacity: 1;
                visibility: visible;
                overflow-y: auto;
            }
            .nav-list {
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding: 20px;
            }
            .nav-link {
                display: block;
                padding: 13px 12px;
                color: #e4f0ed;
            }
            .nav-link::after {
                display: none;
            }
            .mega-panel {
                position: static;
                width: 100%;
                opacity: 1;
                visibility: visible;
                transform: none;
                box-shadow: none;
                display: none;
                padding: 16px;
                background: #0C1B18;
                margin-top: 6px;
                border-radius: 10px;
                grid-template-columns: 1fr;
            }
            .nav-item.has-mega:hover .mega-panel,
            .nav-item.has-mega:focus-within .mega-panel {
                display: grid;
            }
            .mega-cover {
                min-height: 140px;
            }
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 40px;
                padding: 72px 0 60px;
            }
            .hero-visual {
                max-width: 620px;
            }
            .hero-sub {
                max-width: 100%;
            }
            .quick-list {
                grid-template-columns: 1fr;
                gap: 8px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .feature-main {
                min-height: 320px;
            }
            .feature-main-img {
                width: 42%;
                height: 58%;
                opacity: .4;
            }
            .demo-wrap {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .proof-cards {
                grid-template-columns: 1fr 1fr;
            }
            .news-feature {
                grid-template-columns: 1fr;
            }
            .news-feature-photo {
                min-height: 220px;
            }
            .news-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
                padding: 60px 0 40px;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 18px;
            }
            .section {
                padding: 64px 0;
            }
            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .hero-meta {
                flex-direction: column;
                align-items: flex-start;
            }
            .demo-stage {
                grid-template-columns: 1fr;
            }
            .demo-stage-img img {
                min-height: 220px;
            }
            .demo-stage-copy {
                padding: 28px;
            }
            .proof-cards {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .faq-item summary {
                grid-template-columns: 42px 1fr auto;
                font-size: 15px;
            }
            .faq-answer {
                padding-left: 56px;
            }
            .cta-inner {
                padding: 44px 26px;
            }
            .convert-copy {
                font-size: 13px;
            }
            .convert-inner {
                flex-wrap: wrap;
            }
            .convert-inner .btn {
                width: auto;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 34px;
            }
        }
        @media (max-width: 520px) {
            .brand-name {
                font-size: 17px;
            }
            .feature-main {
                padding: 30px;
            }
            .feature-content h3 {
                font-size: 22px;
            }
            .feature-side-card {
                align-items: flex-start;
                flex-direction: column;
                padding: 24px;
                gap: 14px;
            }
            .demo-top {
                padding: 10px 14px;
            }
            .demo-address {
                max-width: 100px;
            }
            .news-feature-body {
                padding: 24px 20px;
            }
            .news-card-body {
                padding: 18px 18px 22px;
            }
            .faq-item summary {
                grid-template-columns: 34px 1fr auto;
                gap: 8px;
                font-size: 14px;
            }
            .faq-answer {
                padding-left: 0;
            }
            .faq-q {
                width: 30px;
                height: 30px;
                font-size: 13px;
            }
            .cta-inner {
                padding: 38px 22px;
            }
            .cta-actions {
                flex-direction: column;
            }
            .cta-actions .btn {
                width: 100%;
            }
            .btn {
                width: fit-content;
            }
            .convert-inner {
                gap: 10px;
                padding: 4px 0;
            }
            .convert-copy {
                display: none;
            }
            .convert-inner .btn {
                flex: 1;
            }
        }
        @media (max-width: 380px) {
            .hero h1 {
                font-size: 38px;
            }
        }

/* roulang page: category2 */
:root{
  --bg:#081614;
  --bg-2:#0D1F1D;
  --card:#132926;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.18);
  --text:#F2F6F5;
  --dim:#A0B4AF;
  --brand:#00DDB8;
  --brand-hi:#36F0CE;
  --amber:#FFC35C;
  --danger:#FB6F6F;
  --paper:#F6F5F1;
  --paper-text:#23302D;
  --paper-sub:#657773;
  --radius:8px;
  --radius-sm:6px;
  --shadow:0 14px 40px rgba(0,0,0,.22);
  --inner-border:0 1px 0 rgba(255,255,255,.04);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",sans-serif;
  background:var(--bg);color:var(--text);font-size:16px;line-height:1.8;font-weight:400;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote,dl,dd{margin:0;padding:0;}
a{color:inherit;text-decoration:none;}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px;}
img{max-width:100%;display:block;}
button{font-family:inherit;cursor:pointer;border:none;background:transparent;color:inherit;}
ul,ol{list-style:none;}
.container{width:min(1240px,calc(100% - 48px));margin-inline:auto;}
@media(max-width:768px){.container{width:min(1240px,calc(100% - 36px));}}

/* ===== Header / Nav ===== */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(8,22,20,.92);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;height:78px;gap:28px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:10px;background:var(--brand);color:#06211C;
  display:flex;align-items:center;justify-content:center;font-weight:900;font-size:20px;flex-shrink:0;
}
.brand-name{font-weight:800;font-size:18px;letter-spacing:.01em;white-space:nowrap;color:var(--text);}
.brand:hover .brand-name{color:var(--brand-hi);}
.site-nav{margin-left:auto;}
.nav-list{display:flex;align-items:center;gap:26px;}
.nav-item{position:relative;}
.nav-item.has-mega{position:static;}
.nav-link{
  display:inline-flex;align-items:center;gap:5px;font-size:15px;font-weight:500;color:var(--dim);
  padding:8px 2px;position:relative;transition:color .25s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--brand);
  transition:right .3s ease;
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{right:0;}
.nav-item.active .nav-link{color:var(--brand);font-weight:700;}
.nav-item.active .nav-link::after{right:0;}
.mega-trigger::before{content:"";display:inline-block;width:4px;height:4px;border-radius:50%;background:var(--amber);margin-right:2px;}
.has-mega:hover .mega-panel,
.has-mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:-64px;width:min(720px,calc(100vw - 48px));
  background:#0B1B19;border:1px solid var(--line);border-radius:12px;padding:28px;
  display:grid;grid-template-columns:1.1fr 1.4fr 1fr;gap:26px;
  box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translateY(-8px);transition:all .25s ease;
}
.mega-panel::before{content:"";position:absolute;top:-18px;right:60px;height:18px;width:180px;}
.mega-col h4{font-size:12px;color:var(--brand);letter-spacing:.06em;margin-bottom:10px;font-weight:800;}
.mega-col h4 + h4{margin-top:18px;}
.mega-links{display:grid;gap:8px;}
.mega-links a{color:var(--dim);font-size:14px;transition:color .2s;}
.mega-links a:hover{color:var(--brand-hi);padding-left:4px;}
.mega-cards{display:grid;gap:12px;}
.mega-mini{
  display:flex;gap:10px;align-items:center;background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.06);border-radius:8px;padding:10px 12px;transition:all .25s ease;
}
.mega-mini img{width:56px;height:42px;object-fit:cover;border-radius:6px;flex-shrink:0;background:#0D1F1D;}
.mega-mini-text{display:grid;color:var(--dim);font-size:12px;}
.mega-mini-text strong{color:var(--text);font-size:13px;}
.mega-mini:hover{border-color:var(--brand);background:rgba(0,221,184,.05);}
.header-actions{margin-left:4px;flex-shrink:0;}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:8px;flex-direction:column;align-items:center;justify-content:center;gap:6px;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);transition:all .25s ease;border-radius:2px;}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(4px) rotate(45deg);}
body.nav-open .nav-toggle span:nth-child(2){transform:translateY(-4px) rotate(-45deg);}
@media(max-width:1080px){
  .header-inner{height:70px;gap:16px;}
  .nav-toggle{display:flex;order:10;}
  .site-nav{
    position:fixed;top:70px;left:0;right:0;bottom:0;z-index:50;background:#081614;
    padding:28px 6vw 60px;overflow-y:auto;transform:translateX(105%);transition:transform .3s ease;
    border-top:1px solid var(--line);
  }
  body.nav-open .site-nav{transform:translateX(0);}
  .site-nav .nav-list{flex-direction:column;align-items:stretch;gap:4px;}
  .nav-link{font-size:18px;padding:15px 0;color:var(--text);display:flex;justify-content:space-between;}
  .nav-link::after{display:none;}
  .nav-item.active .nav-link{color:var(--brand);}
  .mega-panel{
    position:static;opacity:1;visibility:visible;transform:none;grid-template-columns:1fr;width:100%;
    padding:18px 18px 6px;gap:18px;margin-top:8px;background:rgba(255,255,255,.03);box-shadow:none;
  }
}
@media(max-width:520px){
  .header-actions .btn{display:none;}
  .brand-name{font-size:16px;max-width:170px;overflow:hidden;text-overflow:ellipsis;}
}

/* ===== Buttons / Badges / Bases ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-sm);
  font-weight:700;font-size:15px;line-height:1;padding:15px 28px;
  transition:all .2s ease;border:1px solid transparent;cursor:pointer;white-space:nowrap;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--brand);color:#06211C;}
.btn-primary:hover{background:var(--brand-hi);box-shadow:0 0 0 4px rgba(0,221,184,.15);}
.btn-primary:focus{outline:2px solid var(--brand-hi);outline-offset:3px;}
.btn-secondary{background:transparent;border-color:rgba(255,255,255,.35);color:var(--text);}
.btn-secondary:hover{border-color:var(--brand);color:var(--brand);background:rgba(0,221,184,.08);}
.btn-ghost-light{background:transparent;border-color:rgba(23,50,42,.22);color:var(--paper-text);}
.btn-ghost-light:hover{border-color:var(--brand);color:#038a74;background:rgba(0,221,184,.08);}
.btn-sm{padding:11px 18px;font-size:14px;}
.btn-xl{padding:17px 34px;font-size:16px;}
.kicker-badge{
  display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-size:14px;font-weight:700;
  border:1px solid rgba(0,221,184,.3);background:rgba(0,221,184,.07);border-radius:999px;padding:7px 16px;
}

/* ===== Docs Hero Banner ===== */
.docs-hero{
  position:relative;padding:104px 0 88px;border-bottom:1px solid var(--line);
  background:linear-gradient(104deg,rgba(8,22,20,.94) 0%,rgba(8,22,20,.7) 55%,rgba(8,22,20,.42) 100%),url('/assets/images/backpic/back-3.png') center/cover no-repeat;
}
.docs-hero::after{content:"";position:absolute;inset:auto 0 0;height:1px;background:linear-gradient(90deg,transparent,var(--brand),transparent);opacity:.5;}
.docs-hero-inner{position:relative;z-index:2;max-width:880px;}
.docs-eyebrow{
  display:inline-block;font-size:14px;font-weight:800;color:var(--amber);border-left:3px solid var(--brand);
  padding-left:10px;margin-bottom:22px;background:rgba(8,22,20,.45);border-radius:2px;
}
.docs-hero h1{
  font-size:clamp(34px,5vw,56px);line-height:1.24;font-weight:900;color:var(--text);
  margin-bottom:22px;letter-spacing:.01em;
}
.docs-hero h1 em{font-style:normal;color:var(--brand);}
.docs-hero p{font-size:17px;color:var(--dim);line-height:1.9;max-width:680px;}

/* ===== Meta Strip ===== */
.docs-meta-strip{border-bottom:1px solid var(--line);background:rgba(255,255,255,.02);}
.docs-meta-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;padding:22px 0;}
.docs-meta-item{display:flex;gap:14px;align-items:center;}
.docs-meta-icon{
  width:42px;height:42px;border-radius:10px;background:rgba(0,221,184,.1);border:1px solid rgba(0,221,184,.2);
  display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0;
}
.docs-meta-item h3{font-size:15px;font-weight:700;color:var(--text);}
.docs-meta-item p{font-size:13px;color:var(--dim);line-height:1.6;}
@media(max-width:768px){.docs-meta-grid{grid-template-columns:1fr;gap:14px;padding:18px 0;}}

/* ===== Docs Grid ===== */
.docs-layout{padding:72px 0 92px;}
.docs-grid{display:grid;grid-template-columns:250px minmax(0,1fr);gap:48px;align-items:start;}
.docs-sidenav{position:sticky;top:120px;}
.toc-card{
  background:rgba(19,41,38,.6);border:1px solid var(--line);border-radius:10px;
  padding:22px 18px 16px;
}
.toc-title{
  font-size:13px;letter-spacing:.1em;color:var(--dim);text-transform:uppercase;font-weight:800;
  padding-bottom:12px;margin-bottom:14px;border-bottom:1px solid var(--line);
}
.toc-list{display:grid;gap:4px;}
.toc-list a{
  display:flex;align-items:baseline;gap:8px;color:var(--dim);font-size:14px;padding:8px 10px;border-radius:6px;
  transition:all .22s ease;line-height:1.5;
}
.toc-list a em{font-style:normal;font-weight:800;color:var(--amber);font-size:12px;width:18px;flex-shrink:0;}
.toc-list a:hover,.toc-list a:focus{background:rgba(0,221,184,.08);color:var(--brand);}
.back-top{margin-top:16px;text-align:center;}
.back-top a{font-size:13px;color:var(--dim);opacity:.8;}
.back-top a:hover{color:var(--brand);opacity:1;}
@media(max-width:1024px){
  .docs-layout{padding:48px 0 72px;}
  .docs-grid{grid-template-columns:1fr;gap:30px;}
  .docs-sidenav{position:static;overflow-x:auto;}
  .toc-card{border-radius:8px;padding:16px 12px;overflow-x:auto;}
  .toc-list{display:flex;flex-wrap:wrap;gap:6px;}
  .toc-list a{white-space:nowrap;border:1px solid var(--line);padding:6px 10px;}
  .toc-list a em{display:none;}
  .back-top{display:none;}
}

/* ===== Docs Article Paper ===== */
.docs-body{
  background:var(--paper);color:var(--paper-text);border-radius:14px;overflow:hidden;
  box-shadow:0 14px 34px rgba(0,0,0,.24);min-width:0;
  border:1px solid rgba(0,0,0,.06);
}
.doc-inner{padding:clamp(30px,5.5vw,66px);}
.doc-intro{
  padding-bottom:28px;border-bottom:1px solid rgba(35,48,45,.15);margin-bottom:8px;
}
.doc-intro h2{
  font-size:clamp(24px,3vw,34px);line-height:1.35;font-weight:900;color:var(--paper-text);
}
.doc-intro p{margin-top:14px;color:var(--paper-sub);}
.doc-meta-line{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:18px;font-size:13px;color:var(--paper-sub);}
.doc-meta-line span{display:inline-flex;align-items:center;gap:6px;}
.doc-meta-line b{color:var(--paper-text);font-weight:700;}
.doc-section{padding:38px 0 10px;border-bottom:1px solid rgba(35,48,45,.10);}
.doc-section:last-of-type{border-bottom:none;}
.doc-section-head{display:flex;align-items:baseline;gap:14px;margin-bottom:18px;}
.doc-section-num{
  line-height:1;font-size:13px;font-weight:900;color:var(--brand);background:rgba(0,221,184,.12);
  padding:10px 8px;border-radius:8px;flex-shrink:0;min-width:22px;text-align:center;
}
.doc-section h2{font-size:24px;font-weight:900;color:var(--paper-text);}
.doc-section h3{font-size:17px;font-weight:800;color:var(--paper-text);margin-top:22px;margin-bottom:10px;}
.doc-section p{color:var(--paper-sub);font-size:16px;margin-bottom:16px;}
.doc-section p strong{color:var(--paper-text);font-weight:700;}
.lead-text{color:var(--paper-text);font-size:17px;}

.process-list{counter-reset:docstep;display:grid;gap:12px;margin:18px 0 10px;padding:0;}
.process-item{
  position:relative;padding:16px 18px 16px 72px;background:#FFF;border:1px solid rgba(35,48,45,.1);
  border-radius:8px;
}
.process-item::before{
  counter-increment:docstep;content:"0" counter(docstep);
  position:absolute;left:16px;top:16px;width:38px;height:38px;
  background:#10231F;border-radius:8px;display:flex;align-items:center;justify-content:center;
  color:var(--brand);font-weight:800;font-size:14px;
}
.process-item h4{font-size:15px;color:var(--paper-text);font-weight:800;line-height:1.5;}
.process-item p{font-size:14px;color:var(--paper-sub);margin-top:4px;margin-bottom:0;line-height:1.8;}
.tip-list{display:grid;gap:12px;margin:16px 0;}
.tip-list li{
  display:flex;gap:10px;font-size:15px;color:var(--paper-sub);align-items:flex-start;line-height:1.8;
}
.tip-list li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);margin-top:12px;flex-shrink:0;}

.zone-cards{display:grid;gap:10px;margin:18px 0 10px;}
.zone-card{
  display:flex;align-items:flex-start;gap:14px;background:#FFF;border:1px solid rgba(35,48,45,.1);
  border-radius:8px;padding:14px 16px;transition:border-color .2s ease, box-shadow .2s ease;
}
.zone-card:hover{border-color:rgba(0,221,184,.4);box-shadow:0 6px 14px rgba(20,41,36,.06);}
.zone-card .zone-icon{
  width:34px;height:34px;border-radius:8px;background:rgba(0,221,184,.12);color:#00927A;
  display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:900;flex-shrink:0;
}
.zone-card h4{font-size:15px;font-weight:800;color:var(--paper-text);}
.zone-card p{font-size:14px;margin:2px 0 0;color:var(--paper-sub);}
.doc-figure{margin:24px 0 8px;background:#0C1715;border-radius:10px;overflow:hidden;border:1px solid rgba(35,48,45,.12);}
.doc-figure img{width:100%;height:auto;object-fit:cover;}
.doc-figure figcaption{font-size:13px;color:#A9B7B2;padding:12px 16px;background:#0D1F1D;}
.doc-figure figcaption::before{content:"◆ ";color:var(--brand);}
.note-box{
  display:flex;gap:14px;background:rgba(255,195,92,.1);border:1px solid rgba(255,195,92,.35);
  border-radius:8px;padding:16px 18px;margin-top:20px;color:var(--paper-text);
}
.note-box b{display:block;color:#9A6520;font-size:14px;margin-bottom:4px;}
.note-box p{font-size:15px;margin:0;color:#7A5A2A;}

.security-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:20px;}
.security-box{background:#FFF;border:1px solid rgba(35,48,45,.1);border-radius:8px;padding:18px;color:var(--paper-sub);}
.security-box .sec-title{display:flex;align-items:center;gap:8px;font-weight:800;color:var(--paper-text);font-size:15px;margin-bottom:8px;}
.security-box .sec-title i{font-style:normal;color:var(--brand);font-size:18px;}
.security-box p{font-size:14px;margin:0;}
@media(max-width:680px){.security-grid{grid-template-columns:1fr;}}

/* FAQ within paper */
.faq-inner{margin-top:8px;}
.faq-row{
  border-bottom:1px solid rgba(35,48,45,.12);
}
.faq-row:first-child{border-top:1px solid rgba(35,48,45,.12);}
.faq-row summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 4px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:700;color:var(--paper-text);transition:color .2s ease;
}
.faq-row summary::-webkit-details-marker{display:none;}
.faq-row summary .q-mark{color:var(--brand);font-weight:900;margin-right:10px;}
.faq-row summary .faq-arrow{
  width:30px;height:30px;border-radius:8px;flex-shrink:0;display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(35,48,45,.16);color:var(--paper-text);transition:all .25s ease;font-size:14px;
}
.faq-row summary:hover{color:#009B83;}
.faq-row[open] summary .faq-arrow{transform:rotate(180deg);border-color:var(--brand);color:var(--brand);}
.faq-row .faq-answer{padding:0 18px 22px 34px;color:var(--paper-sub);font-size:15px;line-height:1.95;}
@media(max-width:560px){
  .doc-section-inner{padding:26px 0;}
  .doc-inner{padding:28px 22px;}
  .doc-section h2{font-size:20px;}
  .process-item{padding-left:18px;}
  .process-item::before{content:"";display:none;}
}

/* ===== Bottom CTA ===== */
.finish-cta{
  border-top:1px solid var(--line);
  background:linear-gradient(110deg,#0B1E1B 0%,#0E2B25 45%,#10332C 100%);
}
.finish-inner{padding:58px 0 64px;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;}
.finish-copy h2{font-size:24px;font-weight:900;color:var(--text);}
.finish-copy p{color:var(--dim);font-size:15px;margin-top:6px;}
.finish-copy em{font-style:normal;color:var(--brand);}
@media(max-width:700px){.finish-inner{padding:46px 0 52px;flex-direction:column;align-items:flex-start;gap:22px;}}

/* ===== Footer ===== */
.site-footer{
  background:#060F0E;border-top:1px solid var(--line);padding-top:66px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--dim);line-height:1.9;margin-top:8px;max-width:300px;}
.footer-col h4{
  color:var(--text);font-size:14px;font-weight:800;letter-spacing:.08em;margin-bottom:20px;text-transform:uppercase;
}
.footer-col h4::after{content:"";display:block;width:24px;height:2px;background:var(--brand);margin-top:8px;border-radius:2px;}
.footer-links{display:grid;gap:12px;}
.footer-links a{color:var(--dim);font-size:14px;transition:all .2s ease;display:inline-flex;align-items:center;gap:6px;}
.footer-links a:hover{color:var(--brand-hi);transform:translateX(3px);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.07);padding:20px 0;font-size:13px;color:var(--dim);}
.footer-bottom-inner{display:flex;flex-wrap:wrap;gap:8px 28px;align-items:center;justify-content:space-between;}
@media(max-width:980px){.footer-grid{grid-template-columns:1fr 1fr;gap:36px;}}
@media(max-width:600px){.footer-grid{grid-template-columns:1fr;gap:28px;}.site-footer{padding-top:48px;}}

/* roulang page: category1 */
:root{
  --bg:#081614;
  --panel:#0D1F1D;
  --panel-2:#132926;
  --line:rgba(255,255,255,.09);
  --text:#F2F6F5;
  --muted:#A0B4AF;
  --brand:#00DDB8;
  --brand-hover:#36F0CE;
  --amber:#FFC35C;
  --danger:#FB6F6F;
  --radius:8px;
  --radius-sm:6px;
  --shadow:0 1px 0 rgba(255,255,255,.04);
  --font:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button,input,select,textarea,summary{font-family:inherit;font-size:inherit;line-height:inherit}
summary{cursor:pointer}
.container{width:min(1240px,calc(100% - 48px));margin-left:auto;margin-right:auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:46px;padding:11px 26px;border-radius:var(--radius-sm);
  border:1px solid transparent;font-size:15px;font-weight:800;cursor:pointer;
  transition:background .2s,color .2s,border-color .2s,box-shadow .2s,transform .16s;
  line-height:1.2;white-space:nowrap;
}
.btn:focus-visible,.nav-link:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand);color:#071312}
.btn-primary:hover{background:var(--brand-hover);box-shadow:0 0 0 4px rgba(0,221,184,.15)}
.btn-primary:active{box-shadow:0 0 0 2px rgba(0,221,184,.22)}
.btn-outline{background:transparent;border-color:rgba(255,255,255,.32);color:var(--text)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);background:rgba(0,221,184,.06)}
.btn-sm{min-height:38px;padding:8px 18px;font-size:14px}
.btn-block{width:100%}
.text-muted{color:var(--muted)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;color:var(--brand);
  font-size:14px;font-weight:800;letter-spacing:.02em;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px}
.section{padding-top:96px;padding-bottom:96px}
.section-header{max-width:760px;margin-bottom:48px}
.section-header h2{font-size:clamp(28px,4vw,40px);font-weight:900;line-height:1.25;margin:14px 0 16px}
.section-header p{color:var(--muted);font-size:17px;line-height:1.9;max-width:640px}

/* Header */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:#081614;
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:30px;height:78px;
}
.brand{display:inline-flex;align-items:center;gap:12px;min-width:0;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;flex:none;border-radius:9px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand);color:#071312;font-weight:900;font-size:21px;
  box-shadow:0 0 0 3px rgba(0,221,184,.12);
}
.brand-name{font-size:18px;font-weight:900;letter-spacing:0;line-height:1.3;white-space:nowrap}
.site-nav{margin-left:auto}
.nav-list{display:flex;align-items:center;gap:6px}
.nav-item{position:relative}
.nav-link{
  display:inline-flex;align-items:center;min-height:46px;
  padding:10px 16px;border-radius:var(--radius-sm);
  color:var(--muted);font-weight:700;font-size:15px;
  transition:color .2s,background .2s;
  cursor:pointer;border:0;background:none;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-link::after{content:"";height:2px;width:0;background:var(--brand);transition:width .25s;display:block}
.nav-link:hover::after{width:24px}
.nav-item.active .nav-link{color:var(--brand)}
.nav-item.active .nav-link::after{width:24px}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:12px}
.mega-trigger{position:relative}
.mega-panel{
  position:absolute;left:50%;top:calc(100% + 4px);
  transform:translateX(-50%) translateY(8px);
  width:min(900px,89vw);padding:26px;
  background:#0C1E1B;border:1px solid rgba(255,255,255,.12);
  border-radius:16px;box-shadow:0 26px 60px rgba(0,0,0,.42);
  display:grid;grid-template-columns:1.05fr .95fr .8fr;gap:28px;
  opacity:0;visibility:hidden;transition:opacity .2s,transform .2s,visibility .2s;
  pointer-events:none;
}
.has-mega:hover .mega-panel,
.has-mega:focus-within .mega-panel,
.mega-panel.open{
  opacity:1;visibility:visible;transform:translateX(-50%) translateY(0);
  pointer-events:auto;
}
.mega-col h4{
  font-size:13px;color:var(--muted);letter-spacing:.03em;
  margin:18px 0 10px;font-weight:800;text-transform:uppercase;
}
.mega-col h4:first-child{margin-top:0}
.mega-links{display:flex;flex-direction:column;gap:2px}
.mega-links a{
  display:block;padding:7px 0;color:var(--text);font-weight:600;font-size:15px;
  border-bottom:1px solid transparent;transition:color .2s,border-color .2s;
}
.mega-links a:hover{color:var(--brand);border-color:rgba(0,221,184,.35)}
.mega-cards{display:grid;gap:10px}
.mega-mini{
  display:flex;align-items:center;gap:12px;padding:10px;
  border:1px solid var(--line);border-radius:8px;background:rgba(255,255,255,.025);
  transition:border-color .2s,transform .2s;
}
.mega-mini:hover{border-color:rgba(0,221,184,.45);transform:translateY(-2px)}
.mega-mini img{width:64px;height:48px;border-radius:6px;object-fit:cover}
.mega-mini-text{display:flex;flex-direction:column;gap:2px;line-height:1.45;font-size:13px;color:var(--muted)}
.mega-mini-text strong{color:var(--text);font-size:14px;font-weight:800}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);
  border-radius:8px;background:transparent;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);transition:transform .25s,opacity .25s}
.site-header.menu-open .nav-toggle span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.site-header.menu-open .nav-toggle span:nth-child(2){opacity:0}
.site-header.menu-open .nav-toggle span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

/* Page Banner */
.page-banner{
  position:relative;padding:80px 0 64px;
  background:
    linear-gradient(140deg,rgba(5,18,16,.88) 0%,rgba(5,18,16,.55) 42%,rgba(5,18,16,.28) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.crumb{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--muted);flex-wrap:wrap;margin-bottom:26px}
.crumb a{transition:color .2s}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:rgba(160,180,175,.6)}
.page-banner h1{font-size:clamp(40px,6vw,72px);font-weight:900;line-height:1.1;letter-spacing:0;max-width:880px}
.banner-lead{max-width:720px;margin-top:20px;color:#C9D6D2;font-size:17px;line-height:1.9}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px}
.tag-display{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.07);border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:13px;color:var(--muted)}
.tag-display i{width:6px;height:6px;border-radius:50%;background:var(--brand)}

/* Split intro */
.intro-split{display:grid;grid-template-columns:40% 1fr;gap:70px;align-items:center}
.split-media{position:relative;border-radius:14px;overflow:hidden;box-shadow:0 20px 60px rgba(0,0,0,.4)}
.split-media img{width:100%;aspect-ratio:4/5;object-fit:cover}
.visual-note{
  position:absolute;left:14px;bottom:14px;right:14px;
  background:rgba(6,20,17,.72);border:1px solid rgba(255,255,255,.18);
  padding:10px 16px;border-radius:8px;color:#EAF6F3;font-size:13px;line-height:1.5;
  backdrop-filter:blur(4px);
}
.split-copy h2{font-size:clamp(28px,4vw,42px);font-weight:900;line-height:1.3;margin:16px 0 20px}
.split-copy > p{color:#C7D5D1;line-height:2;margin-bottom:16px}
.split-list{display:grid;gap:14px;margin-top:28px}
.split-list li{display:flex;gap:14px;color:#D8E4E0}
.split-list .check{
  width:26px;height:26px;flex:none;border-radius:50%;background:rgba(0,221,184,.14);
  color:var(--brand);display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:900;margin-top:4px;
}
.split-list strong{display:block;font-size:16px;font-weight:800}
.split-list span{color:var(--muted);font-size:14px}

/* Trust strip */
.trust-strip{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:rgba(13,31,29,.55);
}
.trust-inner{
  display:grid;grid-template-columns:repeat(3,1fr);gap:30px;
  padding:48px 0;
}
.trust-item{display:flex;gap:16px}
.trust-icon{
  width:52px;height:52px;border-radius:10px;flex:none;
  border:1px solid rgba(255,195,92,.3);
  background:rgba(255,195,92,.08);color:var(--amber);
  display:flex;align-items:center;justify-content:center;
  font-weight:900;font-size:17px;
}
.trust-item h3{font-size:17px;font-weight:800;margin-bottom:8px}
.trust-item p{font-size:14px;color:var(--muted);line-height:1.8}

/* Scope asymmetric section */
.scope-grid{display:grid;grid-template-columns:1.25fr .85fr;gap:18px}
.scope-card,.scope-card-main{
  background:var(--panel);border:1px solid var(--line);border-radius:12px;
}
.scope-card-main{
  background:
    linear-gradient(150deg,rgba(0,221,184,.09),transparent 55%),
    var(--panel-2);
  padding:36px;display:flex;flex-direction:column;
  border-color:rgba(0,221,184,.16);
}
.scope-card{padding:26px;display:flex;flex-direction:column;justify-content:center}
.scope-card-main h3,.scope-card h3{font-size:22px;font-weight:900;margin-bottom:10px}
.scope-card-main > p,.scope-card > p{color:var(--muted);font-size:15px;line-height:1.9;margin-bottom:24px}
.scope-links{display:flex;flex-direction:column;gap:10px;margin-top:auto}
.scope-link{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  background:rgba(6,20,17,.5);border:1px solid var(--line);
  border-radius:8px;padding:14px 16px;color:var(--text);
  font-weight:700;font-size:15px;transition:border-color .2s,background .2s,transform .2s;
}
.scope-link:hover{background:#0B201D;border-color:rgba(0,221,184,.4);transform:translateX(4px)}
.scope-link span{color:var(--brand);font-size:17px;flex:none}
.scope-stack{display:grid;gap:18px}
.scope-card.accent{background:rgba(255,195,92,.05);border-color:rgba(255,195,92,.26)}
.scope-card .card-tag{display:inline-flex;align-self:flex-start;margin-bottom:18px}
.card-tag{
  background:rgba(0,221,184,.12);color:var(--brand);
  padding:5px 14px;border-radius:999px;font-size:13px;font-weight:800;
}
.card-tag.amber{background:rgba(255,195,92,.12);color:var(--amber)}

/* Journey / visit flow */
.journey-section{
  background:
    linear-gradient(120deg,transparent 0%,rgba(255,255,255,.025) 70%);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.journey-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.journey-copy h2{font-size:clamp(28px,4vw,40px);font-weight:900;margin:16px 0 20px}
.journey-copy > p{color:var(--muted);line-height:1.9;margin-bottom:32px}
.step-list{display:grid;gap:4px}
.step-item{
  display:grid;grid-template-columns:52px 1fr;gap:20px;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.step-item:last-child{border-bottom:0}
.step-num{
  padding-top:24px;color:var(--brand);font-weight:900;font-size:15px;
}
.step-body{padding:20px 0}
.step-body h3{font-size:17px;font-weight:800;margin-bottom:6px}
.step-body p{color:var(--muted);font-size:14px}
.journey-visual{border-radius:14px;overflow:hidden;position:relative}
.journey-visual img{width:100%;aspect-ratio:4/4.4;object-fit:cover}
.journey-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(145deg,rgba(0,0,0,.04),rgba(0,0,0,.3));
  pointer-events:none;
}

/* FAQ */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-wrap .section-header{text-align:center;margin-left:auto;margin-right:auto}
.faq-list{border-top:1px solid var(--line)}
.faq-item{
  border-bottom:1px solid var(--line);
  border-radius:0;
}
.faq-item summary{
  display:flex;justify-content:space-between;align-items:center;gap:20px;
  padding:24px 8px;font-size:17px;font-weight:800;color:var(--text);
  transition:color .2s,background .2s;
}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-mark{
  width:30px;height:30px;flex:none;border-radius:50%;
  border:1px solid var(--line);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:400;transition:transform .25s,border-color .25s;
}
.faq-item[open] .faq-mark{border-color:var(--brand);transform:rotate(45deg)}
.faq-answer{padding:0 8px 26px;max-width:780px;color:var(--muted);line-height:2}
.faq-answer strong{color:var(--text);font-weight:700}

/* CTA */
.cta-band{
  position:relative;
  background:
    linear-gradient(90deg,rgba(8,22,20,.92),rgba(19,41,38,.78)),
    url('/assets/images/backpic/back-3.png') center/cover;
  border-top:1px solid var(--line);padding:88px 0;
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:40px;
  background:rgba(13,31,29,.66);border:1px solid rgba(255,255,255,.14);
  padding:48px;border-radius:16px;
}
.cta-copy h2{font-size:clamp(24px,3.4vw,36px);font-weight:900;line-height:1.4;margin-bottom:10px}
.cta-copy p{color:var(--muted);font-size:16px;max-width:580px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:none}

/* Footer */
.site-footer{background:#060E0D;border-top:1px solid var(--line);padding-top:80px}
.footer-grid{
  display:grid;grid-template-columns:1.5fr .9fr 1fr 1.1fr;
  gap:50px;padding-bottom:56px;
}
.footer-brand p{color:var(--muted);font-size:14px;line-height:2;margin-top:18px;max-width:320px}
.footer-col h4{font-size:14px;color:var(--text);font-weight:800;letter-spacing:.02em;margin-bottom:20px;display:flex;align-items:center;gap:10px}
.footer-col h4::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--brand)}
.footer-links{display:grid;gap:10px}
.footer-links a{color:var(--muted);font-size:14px;font-weight:600;transition:color .2s,padding-left .2s}
.footer-links a:hover{color:var(--brand);padding-left:4px}
.footer-bottom{border-top:1px solid var(--line);padding:24px 0}
.footer-bottom-inner{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:rgba(160,180,175,.65);font-size:13px}
.footer-bottom-inner a{color:rgba(160,180,175,.7)}
.footer-bottom-inner a:hover{color:var(--brand)}

/* Media queries */
@media (min-width:1200px){
  .mega-panel{width:min(900px,84vw)}
}
@media (max-width:1200px){
  .mega-panel{grid-template-columns:1fr 1fr}
  .mega-col:last-child{display:none}
}
@media (max-width:992px){
  .header-actions{margin-left:auto}
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:absolute;top:100%;left:0;width:100%;
    background:#081614;border-bottom:1px solid var(--line);
    max-height:0;overflow:hidden;
    transition:max-height .35s ease;
    visibility:hidden;
  }
  .site-header.menu-open .site-nav{max-height:calc(100vh - 78px);overflow-y:auto;visibility:visible}
  .nav-list{flex-direction:column;align-items:stretch;padding:12px 22px 24px;gap:2px}
  .nav-link{min-height:48px;width:100%;justify-content:space-between;padding:10px 6px}
  .mega-panel{
    position:static;transform:none;width:100%;grid-template-columns:1fr 1fr;
    opacity:1;visibility:visible;pointer-events:auto;transform:none;
    border:0;border-left:2px solid var(--brand);border-radius:8px;
    margin:2px 0 8px;padding:16px;background:rgba(255,255,255,.025);
    display:none;max-height:none;
  }
  .has-mega:hover .mega-panel,
  .has-mega:focus-within .mega-panel{display:none}
  .mega-panel.open{display:grid}
  .mega-col:last-child{display:none}
  .intro-split{grid-template-columns:1fr;gap:40px}
  .split-media img{aspect-ratio:16/10}
  .scope-grid{grid-template-columns:1fr}
  .journey-grid{grid-template-columns:1fr;gap:44px}
  .journey-visual{order:-1}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px}
}
@media (max-width:768px){
  .section{padding-top:64px;padding-bottom:64px}
  .header-inner{height:70px;gap:12px}
  .brand-name{font-size:16px}
  .brand-mark{width:36px;height:36px;font-size:18px}
  .header-actions .btn{display:none}
  .page-banner{padding:56px 0 52px}
  .trust-inner{grid-template-columns:1fr}
  .trust-item{padding-bottom:26px;border-bottom:1px solid var(--line)}
  .trust-item:last-child{padding-bottom:0;border-bottom:0}
  .step-item{grid-template-columns:44px 1fr}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:34px}
  .footer-bottom-inner{flex-direction:column}
}
@media (max-width:520px){
  .container{width:calc(100% - 34px)}
  .brand-name{white-space:normal;line-height:1.3}
  .header-inner{flex-wrap:nowrap}
  .mega-panel{grid-template-columns:1fr}
  .mega-col:first-child{display:none}
  .mega-col:last-child{display:none}
  .mega-panel .mega-col:nth-child(2){display:block}
  .scope-card-main{padding:24px}
  .scope-card{padding:22px}
  .cta-inner{padding:28px 20px}
  .crumb{font-size:13px}
  .page-banner h1{font-size:34px}
  .banner-lead{font-size:15px;line-height:1.85}
}

/* roulang page: article */
:root{
  --bg-deep:#081614;
  --bg-card:#0D1F1D;
  --bg-card-hi:#132926;
  --border-soft:rgba(255,255,255,.09);
  --border-line:rgba(8,22,20,.1);
  --ink:#F2F6F5;
  --muted:#A0B4AF;
  --brand:#00DDB8;
  --brand-hi:#36F0CE;
  --amber:#FFC35C;
  --danger:#FB6F6F;
  --paper:#F6F5F1;
  --paper-ink:#23302D;
  --paper-sub:#657773;
  --paper-card:#FFFFFF;
  --radius-lg:8px;
  --radius-md:6px;
  --shadow-card:0 8px 24px rgba(0,0,0,.06);
  --shadow-paper:0 1px 0 rgba(255,255,255,.04);
  --container:1240px;
  --section-pad:96px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  background:var(--bg-deep);
  color:var(--ink);
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
body.read-paper{background:var(--paper)}
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:24px;padding-right:24px}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea{font-family:inherit}

/* 全局焦点态 */
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:3px;
  border-radius:4px;
}

/* ========== 头部导航 ========== */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(8,22,20,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.07);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:72px;
  gap:32px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:900;
  font-size:20px;
  letter-spacing:0;
  white-space:nowrap;
}
.brand-mark{
  width:36px;
  height:36px;
  display:grid;
  place-items:center;
  background:var(--brand);
  color:#071312;
  border-radius:8px;
  font-size:18px;
  font-weight:900;
}
.brand-name{color:var(--ink)}
.brand:hover .brand-name,.brand:hover .brand-mark{color:var(--brand-hi)}
.brand .brand-mark{transition:background .2s,transform .2s}
.brand:hover .brand-mark{background:var(--brand-hi);transform:translateY(-1px)}

.site-nav{
  display:flex;
  align-items:center;
  flex:1;
  justify-content:flex-end;
}
.nav-list{
  display:flex;
  align-items:center;
  gap:8px;
  list-style:none;
  margin:0;
  padding:0;
}
.nav-item{position:relative}
.nav-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:8px 14px;
  font-size:15px;
  font-weight:600;
  color:var(--muted);
  border-radius:6px;
  transition:color .2s,background .2s;
}
.nav-item.active > .nav-link{
  color:var(--brand);
}
.nav-link:hover,
.nav-item:hover > .nav-link{
  color:var(--brand-hi);
  background:rgba(0,221,184,.08);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:2px;
  height:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .25s ease;
}
.nav-item.active > .nav-link::after,
.nav-link:hover::after{
  transform:scaleX(1);
}
.header-cta{
  margin-left:16px;
  flex-shrink:0;
}
.extra-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-weight:800;
  font-size:15px;
  padding:9px 18px;
  background:var(--brand);
  color:#071312;
  border-radius:6px;
  transition:background .2s,transform .15s,box-shadow .2s;
}
.extra-cta:hover{
  background:var(--brand-hi);
  box-shadow:0 0 0 4px rgba(0,221,184,.15);
}
.extra-cta:active{transform:translateY(1px)}

/* Mega 下拉面板 */
.has-mega .mega-panel{
  position:absolute;
  top:calc(100% + 12px);
  right:0;
  width:680px;
  max-width:calc(100vw - 48px);
  background:var(--bg-card-hi);
  border:1px solid rgba(255,255,255,.1);
  border-radius:12px;
  padding:28px;
  display:none;
  grid-template-columns:1fr 1.4fr;
  gap:32px;
  box-shadow:0 18px 48px rgba(0,0,0,.35);
}
.has-mega:hover .mega-panel,
.has-mega.mega-open .mega-panel{
  display:grid;
}
.mega-panel h4{
  margin:0 0 12px;
  font-size:13px;
  font-weight:800;
  color:var(--muted);
  letter-spacing:.02em;
  text-transform:uppercase;
}
.mega-panel h4 + h4{margin-top:24px}
.mega-links{
  display:flex;
  flex-direction:column;
  gap:6px;
}
.mega-links a{
  color:var(--ink);
  font-size:14px;
  font-weight:500;
  padding:6px 8px;
  border-radius:6px;
  transition:background .2s,color .2s,transform .2s;
}
.mega-links a:hover{
  color:var(--brand-hi);
  background:rgba(0,221,184,.08);
  transform:translateX(3px);
}
.mega-cards{
  display:flex;
  flex-direction:column;
  gap:14px;
}
.mega-mini{
  display:flex;
  gap:14px;
  align-items:center;
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.08);
  border-radius:10px;
  padding:12px;
  transition:background .2s,border-color .2s,transform .2s;
}
.mega-mini:hover{
  background:rgba(0,221,184,.07);
  border-color:rgba(0,221,184,.25);
  transform:translateY(-2px);
}
.mega-mini img{
  width:86px;
  height:62px;
  border-radius:6px;
  object-fit:cover;
  flex-shrink:0;
}
.mega-mini-text{
  display:flex;
  flex-direction:column;
  font-size:13px;
  color:var(--muted);
  line-height:1.5;
}
.mega-mini-text strong{
  color:var(--ink);
  font-size:14px;
  margin-bottom:3px;
}

/* 汉堡菜单（默认隐藏） */
.nav-toggle{
  display:none;
  background:transparent;
  border:1px solid rgba(255,255,255,.18);
  width:42px;
  height:42px;
  color:var(--ink);
  font-size:20px;
  border-radius:6px;
  cursor:pointer;
  align-items:center;
  justify-content:center;
}

/* ========== 文章页主结构 ========== */

/* 面包屑 */
.article-page{
  background:var(--paper);
  color:var(--paper-ink);
}
.breadcrumb-wrap{
  border-bottom:1px solid rgba(8,22,20,.07);
  background:rgba(255,255,255,.5);
}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  padding:16px 0;
  font-size:14px;
  color:var(--paper-sub);
}
.breadcrumb a{
  color:var(--paper-sub);
  transition:color .2s;
}
.breadcrumb a:hover{color:var(--brand-hi)}
.breadcrumb .sep{opacity:.45}
.breadcrumb .current{
  color:var(--paper-ink);
  font-weight:600;
}

/* 文章头 */
.article-header{
  max-width:960px;
  margin:0 auto;
  padding:56px 24px 32px;
}
.article-title{
  font-size:clamp(30px,4vw,42px);
  font-weight:900;
  line-height:1.35;
  color:var(--paper-ink);
  letter-spacing:0;
  margin:0;
}
.article-excerpt{
  margin-top:18px;
  font-size:17px;
  color:var(--paper-sub);
  line-height:1.9;
  max-width:820px;
}
.article-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:12px;
  margin-top:24px;
  padding-top:20px;
  border-top:1px solid rgba(8,22,20,.08);
}
.article-source{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--paper-sub);
}
.article-source .dot{
  width:28px;
  height:28px;
  border-radius:8px;
  background:var(--brand);
  color:#071312;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:12px;
  font-weight:800;
}
.meta-badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  font-weight:700;
  color:var(--brand-hi);
  background:rgba(0,221,184,.12);
  padding:4px 12px;
  border-radius:30px;
  white-space:nowrap;
}
.meta-time{
  font-size:14px;
  color:var(--paper-sub);
}

/* 文章主图 */
.article-cover{
  max-width:960px;
  margin:8px auto 0;
  padding:0 24px;
}
.article-cover .cover-box{
  border-radius:10px;
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.article-cover img{
  width:100%;
  height:auto;
  aspect-ratio:16/9;
  object-fit:cover;
}

/* 正文区 */
.article-body{
  max-width:760px;
  margin:0 auto;
  padding:56px 24px 8px;
}
.article-prose{
  color:var(--paper-ink);
  font-size:17px;
  line-height:2;
}
.article-prose > *{
  margin-bottom:24px;
}
.article-prose p{
  margin:0 0 24px;
}
.article-prose h2{
  font-size:24px;
  font-weight:800;
  line-height:1.5;
  margin:44px 0 16px;
  padding-top:8px;
  color:var(--paper-ink);
}
.article-prose h3{
  font-size:20px;
  font-weight:800;
  margin:36px 0 12px;
  color:var(--paper-ink);
}
.article-prose a{
  color:var(--brand-hi);
  text-decoration:underline;
  text-decoration-color:rgba(0,221,184,.4);
  text-underline-offset:4px;
  transition:text-decoration-color .2s,color .2s;
}
.article-prose a:hover{
  color:var(--brand);
  text-decoration-color:var(--brand);
}
.article-prose ul,.article-prose ol{
  margin:0 0 24px;
  padding-left:24px;
}
.article-prose li{
  margin-bottom:6px;
}
.article-prose img{
  border-radius:6px;
  margin:32px auto;
}
.article-prose figcaption{
  font-size:13px;
  color:var(--paper-sub);
  text-align:center;
  margin:-16px 0 32px;
}
.article-prose blockquote{
  margin:32px 0;
  padding:18px 24px;
  border-left:4px solid var(--brand);
  background:rgba(0,221,184,.06);
  color:var(--paper-ink);
  border-radius:0 8px 8px 0;
  font-size:16px;
}
.article-prose blockquote p:last-child{
  margin-bottom:0;
}
.article-prose .wp-caption-text,.article-prose .img-caption{
  font-size:13px;
  color:var(--paper-sub);
  text-align:center;
  background:rgba(0,0,0,.03);
  padding:10px 16px;
  border-radius:6px;
  margin-top:-16px;
  margin-bottom:32px;
}

/* 文末标签 */
.article-end{
  max-width:760px;
  margin:0 auto;
  padding:24px 24px 0;
}
.tag-list{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  padding-top:24px;
  border-top:1px solid rgba(8,22,20,.08);
}
.tag-item{
  font-size:13px;
  font-weight:600;
  color:var(--paper-sub);
  border:1px solid rgba(8,22,20,.14);
  padding:6px 14px;
  border-radius:30px;
  transition:border-color .2s,color .2s,background .2s;
}
.tag-item:hover{
  color:var(--brand-hi);
  border-color:rgba(0,221,184,.5);
  background:rgba(0,221,184,.08);
}
.article-backlink{
  max-width:760px;
  margin:0 auto;
  padding:24px 24px 64px;
}
.article-backlink a{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-weight:700;
  color:var(--paper-sub);
  transition:color .2s,gap .2s;
}
.article-backlink a:hover{color:var(--brand-hi);gap:12px}
.article-backlink a .arrow-left{font-size:18px}

/* 文章未找到 */
.article-empty{
  max-width:760px;
  margin:0 auto;
  padding:64px 24px 96px;
  text-align:center;
}
.empty-illustration{
  width:64px;
  height:64px;
  margin:0 auto 20px;
  border-radius:16px;
  background:rgba(0,221,184,.12);
  color:var(--brand-hi);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:32px;
  font-weight:900;
}
.article-empty h1{font-size:28px;font-weight:900;margin:0 0 12px}
.article-empty p{color:var(--paper-sub);margin:0 0 28px}
.article-empty .btn-empty-back{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:var(--bg-deep);
  color:var(--ink);
  font-weight:800;
  padding:10px 22px;
  border-radius:6px;
  transition:background .2s,transform .15s;
}
.article-empty .btn-empty-back:hover{background:#0F2925;transform:translateY(-1px)}

/* ========== 阅读延伸 ========== */
.read-more-section{
  background:var(--bg-card);
  margin-top:0;
  padding:64px 0;
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.section-kicker{
  display:inline-block;
  font-size:13px;
  font-weight:800;
  color:var(--brand);
  letter-spacing:.03em;
  margin-bottom:8px;
}
.section-head h2{
  font-size:30px;
  font-weight:900;
  line-height:1.4;
  margin:0;
}
.section-head .section-sub{
  color:var(--muted);
  font-size:15px;
  max-width:420px;
  text-align:right;
}
.read-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:18px;
}
.read-card{
  display:flex;
  gap:18px;
  align-items:stretch;
  background:var(--bg-card-hi);
  border:1px solid rgba(255,255,255,.08);
  border-radius:10px;
  padding:18px;
  transition:transform .2s,border-color .2s,background .2s;
}
.read-card:hover{
  transform:translateY(-4px);
  border-color:rgba(0,221,184,.3);
  background:rgba(0,221,184,.06);
}
.read-card img{
  width:146px;
  min-height:96px;
  object-fit:cover;
  border-radius:6px;
  flex-shrink:0;
}
.read-card-content{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
}
.read-card-content h3{
  margin:0 0 6px;
  font-size:17px;
  font-weight:800;
  line-height:1.5;
}
.read-card-content p{
  margin:0;
  font-size:14px;
  color:var(--muted);
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.read-card-link{
  margin-top:auto;
  display:inline-flex;
  align-items:center;
  gap:4px;
  font-size:13px;
  font-weight:800;
  color:var(--brand);
  transition:color .2s,gap .2s;
}
.read-card:hover .read-card-link{color:var(--brand-hi);gap:8px}

/* ========== 页脚 ========== */
.site-footer{
  background:#060F0E;
  border-top:1px solid rgba(255,255,255,.06);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.1fr;
  gap:48px;
  padding-bottom:48px;
}
.footer-brand .brand{
  margin-bottom:16px;
}
.footer-brand p{
  margin:0;
  font-size:14px;
  color:var(--muted);
  line-height:1.9;
  max-width:320px;
}
.footer-col h4{
  margin:0 0 18px;
  font-size:16px;
  font-weight:800;
  color:var(--ink);
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-links a{
  color:var(--muted);
  font-size:14px;
  transition:color .2s,padding-left .2s;
}
.footer-links a:hover{
  color:var(--brand-hi);
  padding-left:4px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.05);
  padding:22px 0;
  margin-top:8px;
}
.footer-bottom-inner{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--muted);
}

/* ========== 响应式 ========== */
@media (max-width:1200px){
  .read-grid{grid-template-columns:1fr}
}
@media (max-width:992px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .nav-list{gap:4px}
  .nav-link{padding:8px 10px}
}
@media (max-width:850px){
  .header-inner{min-height:64px}
  .nav-toggle{display:flex}
  .site-nav{
    position:absolute;
    top:64px;
    left:0;
    right:0;
    background:var(--bg-deep);
    border-bottom:1px solid rgba(255,255,255,.07);
    flex-direction:column;
    align-items:stretch;
    padding:16px 24px 24px;
    display:none;
    box-shadow:0 24px 48px rgba(0,0,0,.3);
  }
  .mobile-menu-open .site-nav{display:block}
  .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:4px;
  }
  .nav-link{
    justify-content:space-between;
    width:100%;
    padding:12px 8px;
    font-size:16px;
  }
  .nav-link::after{display:none}
  .header-cta{
    margin-left:0;
    margin-top:14px;
  }
  .extra-cta{
    display:flex;
    justify-content:center;
  }
  .has-mega .mega-panel{
    position:static;
    width:100%;
    display:none;
    margin-top:6px;
    padding:18px;
    grid-template-columns:1fr;
  }
  .mega-open .mega-panel{display:grid}
}
@media (max-width:640px){
  .article-header{padding-top:40px}
  .article-header,.article-cover,.article-body,.article-end,.article-backlink{padding-left:18px;padding-right:18px}
  .article-cover .cover-box{border-radius:8px}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px}
  .section-head .section-sub{text-align:left}
  .read-card{flex-direction:column}
  .read-card img{width:100%;height:auto;min-height:auto;aspect-ratio:16/8}
  .read-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-brand p{max-width:100%}
  .section-kicker{font-size:12px}
}
@media (max-width:480px){
  :root{--section-pad:64px}
  .article-title{font-size:28px}
  .section-head h2{font-size:25px}
  .article-prose{font-size:16px}
  .article-prose h2{font-size:21px}
  .article-prose h3{font-size:18px}
  .read-card-content p{-webkit-line-clamp:3}
}