/* roulang page: index */
:root {
            --bg-abyss: #070C17;
            --bg-deep: #0B1424;
            --bg-layer: #101D30;
            --cyan: #00E1FF;
            --blue: #2F74FF;
            --violet: #6C3BFF;
            --amber: #FFB84D;
            --text-hi: #EDF3FF;
            --text-mid: #A6BAD6;
            --text-dim: #7389AB;
            --line-soft: rgba(255, 255, 255, .11);
            --card-bg: rgba(255, 255, 255, .05);
            --glass-border: rgba(255, 255, 255, .14);
            --grad-brand: linear-gradient(135deg, #00E1FF, #2F74FF);
            --r-md: 14px;
            --r-lg: 20px;
            --shadow-glow: 0 4px 32px rgba(0, 225, 255, .18);
            --space-sm: 12px;
            --space-md: 24px;
            --space-lg: 48px;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            background-color: var(--bg-abyss);
            color: var(--text-hi);
            font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, sans-serif;
            line-height: 1.8;
            margin: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        body.menu-open {
            overflow: hidden;
        }

        h1,
        h2,
        h3,
        h4 {
            font-weight: 800;
            color: var(--text-hi);
            letter-spacing: -0.01em;
        }

        h1 {
            font-size: clamp(2.1rem, 5vw, 4.25rem);
            font-weight: 900;
            letter-spacing: -0.02em;
            line-height: 1.15;
        }

        h2 {
            font-size: clamp(1.6rem, 3vw, 2.45rem);
            line-height: 1.35;
            letter-spacing: -0.015em;
        }

        h3 {
            font-size: 1.15rem;
            font-weight: 700;
        }

        p {
            color: var(--text-mid);
            line-height: 1.9;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

        input:focus-visible,
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 3px;
            border-radius: 6px;
        }

        ::selection {
            background: rgba(0, 225, 255, .25);
            color: #fff;
        }

        .wrap {
            width: min(1180px, calc(100% - 48px));
            margin-left: auto;
            margin-right: auto;
        }

        .section {
            position: relative;
            z-index: 2;
            padding-top: 88px;
            padding-bottom: 88px;
        }

        .section-dark {
            background: linear-gradient(180deg, rgba(7, 12, 23, 0), var(--bg-deep) 35%);
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 225, 255, .08);
            border: 1px solid rgba(0, 225, 255, .22);
            color: var(--cyan);
            font-size: 13px;
            line-height: 1.4;
            padding: 7px 14px;
            border-radius: 999px;
            letter-spacing: .01em;
        }

        .eyebrow::before {
            content: "";
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--cyan);
            box-shadow: 0 0 12px rgba(0, 225, 255, .7);
        }

        .grad-text {
            background: var(--grad-brand);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 46px;
            padding: 0 22px;
            border-radius: 12px;
            border: 1px solid transparent;
            font-weight: 700;
            transition: all .25s ease;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--grad-brand);
            color: #fff;
            box-shadow: 0 6px 18px rgba(0, 225, 255, .18);
        }

        .btn-primary:hover {
            box-shadow: 0 8px 26px rgba(0, 225, 255, .32);
            transform: translateY(-2px);
            filter: brightness(1.06);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 2px 10px rgba(0, 225, 255, .25);
        }

        .btn-ghost {
            background: rgba(255, 255, 255, .04);
            border-color: rgba(255, 255, 255, .2);
            color: var(--text-hi);
            backdrop-filter: blur(10px);
        }

        .btn-ghost:hover {
            background: rgba(0, 225, 255, .09);
            border-color: rgba(0, 225, 255, .45);
            transform: translateY(-2px);
        }

        .btn-sm {
            min-height: 36px;
            padding: 0 14px;
            border-radius: 10px;
            font-size: 13px;
        }

        .chip {
            display: inline-flex;
            align-items: center;
            padding: 5px 12px;
            font-size: 12px;
            line-height: 1.4;
            border-radius: 999px;
            background: rgba(47, 116, 255, .14);
            border: 1px solid rgba(47, 116, 255, .3);
            color: #AFC4FF;
        }

        .chip-cyan {
            background: rgba(0, 225, 255, .1);
            border-color: rgba(0, 225, 255, .3);
            color: #BDF3FF;
        }

        .chip-amber {
            background: rgba(255, 184, 77, .1);
            border-color: rgba(255, 184, 77, .28);
            color: #FFD9A0;
        }

        /* 顶部导航
        ---------------------------------------------- */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 90;
            height: 64px;
            background: rgba(7, 12, 23, .72);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, .07);
            transition: box-shadow .3s, background .3s;
        }

        .site-header.scrolled {
            background: rgba(7, 12, 23, .86);
            box-shadow: 0 6px 28px rgba(0, 0, 0, .28);
        }

        .header-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 28px;
        }

        .header-left,
        .header-right {
            display: flex;
            align-items: center;
            gap: 22px;
        }

        .header-right {
            gap: 12px;
            justify-content: flex-end;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            color: var(--text-hi);
            letter-spacing: -0.01em;
        }

        .brand-mark {
            width: 34px;
            height: 34px;
            display: grid;
            place-items: center;
            border-radius: 11px;
            background: linear-gradient(135deg, rgba(0, 225, 255, .9), rgba(47, 116, 255, .9));
            color: #fff;
            box-shadow: 0 0 24px rgba(0, 225, 255, .25);
            flex: 0 0 auto;
        }

        .brand-name {
            font-size: 18px;
            line-height: 1;
        }

        .brand-name small {
            color: var(--text-mid);
            font-weight: 500;
            margin-left: 4px;
            font-size: 13px;
        }

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

        .nav-link {
            position: relative;
            padding: 10px 13px;
            font-size: 14px;
            color: var(--text-mid);
            border-radius: 10px;
            transition: color .2s, background .2s;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, .06);
        }

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

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 5px;
            height: 3px;
            border-radius: 999px;
            background: linear-gradient(90deg, var(--cyan), transparent);
            box-shadow: 0 0 12px rgba(0, 225, 255, .4);
        }

        .header-search {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: 999px;
            height: 36px;
            padding: 0 5px 0 12px;
            transition: border .2s, box-shadow .2s, width .2s;
            width: 150px;
        }

        .header-search:focus-within {
            width: 220px;
            border-color: rgba(0, 225, 255, .5);
            box-shadow: 0 0 0 3px rgba(0, 225, 255, .08);
        }

        .header-search input {
            background: transparent;
            border: none;
            outline: none;
            color: #fff;
            width: 100%;
            font-size: 13px;
            padding: 0;
        }

        .header-search input::placeholder {
            color: var(--text-dim);
        }

        .header-search svg {
            width: 15px;
            height: 15px;
            margin-right: 8px;
            color: var(--text-dim);
            flex: 0 0 auto;
        }

        .menu-toggle {
            display: none;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, .12);
            color: #fff;
            border-radius: 12px;
            cursor: pointer;
        }

        .mobile-panel {
            position: fixed;
            z-index: 89;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: rgba(7, 12, 23, .92);
            backdrop-filter: blur(28px);
            -webkit-backdrop-filter: blur(28px);
            display: none;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 18px;
            opacity: 0;
            pointer-events: none;
            transition: opacity .25s;
        }

        body.menu-open .mobile-panel {
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-panel .mobile-link {
            font-size: 26px;
            font-weight: 800;
            padding: 6px 18px;
            color: var(--text-hi);
            border-radius: 16px;
        }

        .mobile-panel .mobile-link.active {
            color: var(--cyan);
        }

        /* Hero
        ---------------------------------------------- */
        .hero {
            position: relative;
            padding-top: 64px;
            min-height: 100vh;
            overflow: hidden;
            display: flex;
            align-items: center;
        }

        .hero-deep {
            position: absolute;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            display: grid;
            grid-template-columns: 1fr 1fr;
            pointer-events: none;
        }

        .hero-visual {
            position: relative;
            overflow: hidden;
            margin-left: 10%;
            border-top-left-radius: 32px;
            border-bottom-left-radius: 32px;
            background: var(--bg-deep);
            min-height: 100%;
        }

        .hero-visual img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: .5;
        }

        .hero-visual::before {
            content: "";
            position: absolute;
            inset: 0;
            z-index: 1;
            background: linear-gradient(90deg, rgba(7, 12, 23, .9) 0%, rgba(7, 12, 23, .2) 60%, rgba(7, 12, 23, .65) 100%);
        }

        .hero-visual::after {
            content: "";
            position: absolute;
            inset: 0;
            z-index: 0;
            background-image: linear-gradient(rgba(0, 225, 255, .06) 1px, transparent 1px), linear-gradient(90deg, rgba(0, 225, 255, .06) 1px, transparent 1px);
            background-size: 36px 36px;
            mask-image: radial-gradient(circle at 60% 50%, black, transparent 72%);
        }

        .hero-wrap {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
            align-items: center;
            gap: 40px;
            width: min(1180px, calc(100% - 48px));
            margin: 0 auto;
            padding: 70px 0 90px;
        }

        .hero-content {
            max-width: 600px;
        }

        .hero-sub {
            font-size: 1.06rem;
            color: #C0D2EA;
            margin-top: 20px;
            max-width: 54ch;
        }

        .hero-sub-note {
            margin-top: 18px;
            line-height: 1.8;
            color: var(--text-dark);
            color: var(--text-dim);
            max-width: 56ch;
        }

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

        .hero-side {
            position: relative;
            min-height: 460px;
            display: flex;
            align-items: center;
            justify-content: flex-end;
        }

        .holo-card {
            width: min(440px, 92%);
            margin-left: auto;
            position: relative;
            z-index: 3;
            background: rgba(16, 29, 48, .58);
            border: 1px solid rgba(255, 255, 255, .15);
            border-radius: 22px;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            box-shadow: 0 20px 60px rgba(0, 0, 0, .35);
            padding: 25px;
        }

        .holo-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 20px;
        }

        .holo-head .status-dots {
            display: flex;
            gap: 6px;
        }

        .holo-head .dot {
            width: 9px;
            height: 9px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .24);
        }

        .holo-head .dot:nth-child(1) {
            background: #FF6B6B;
        }

        .holo-head .dot:nth-child(2) {
            background: #FFD66B;
        }

        .holo-head .dot:nth-child(3) {
            background: #65D67F;
        }

        .holo-title {
            font-size: 13px;
            color: var(--text-dim);
            letter-spacing: .05em;
        }

        .status-line {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, .07);
            font-size: 14px;
        }

        .status-line:last-child {
            border-bottom: none;
        }

        .status-mark {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            flex: 0 0 auto;
            background: var(--cyan);
            box-shadow: 0 0 12px rgba(0, 225, 255, .5);
        }

        .status-line .status-name {
            color: var(--text-hi);
            font-weight: 600;
            flex: 1;
        }

        .status-line .status-text {
            color: var(--text-dim);
            font-size: 13px;
        }

        /* 通用面板
        ---------------------------------------------- */
        .card-glass {
            background: var(--card-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--r-lg);
            padding: 26px;
            transition: transform .2s, border-color .25s, box-shadow .25s;
        }

        .card-glass:hover {
            transform: translateY(-2px);
            border-color: rgba(0, 225, 255, .35);
            box-shadow: 0 14px 40px rgba(0, 0, 0, .22), 0 0 24px rgba(0, 225, 255, .08);
        }

        .neon-card {
            background: rgba(255, 255, 255, .045);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: 20px;
            overflow: hidden;
            transition: transform .25s, border-color .25s, box-shadow .25s;
        }

        .neon-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 225, 255, .3);
            box-shadow: 0 16px 42px rgba(0, 0, 0, .3), 0 0 25px rgba(0, 225, 255, .06);
        }

        .icon-tile {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 15px;
            background: linear-gradient(135deg, rgba(0, 225, 255, .15), rgba(47, 116, 255, .15));
            border: 1px solid rgba(0, 225, 255, .25);
            color: var(--cyan);
            flex: 0 0 auto;
        }

        /* 首页各板块
        ---------------------------------------------- */
        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 30px;
            margin-bottom: 40px;
        }

        .section-head p {
            margin-top: 12px;
            max-width: 58ch;
        }

        /* 痛点 */
        .pain-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
            margin-top: 10px;
        }

        .pain-item {
            border-left: 2px solid rgba(255, 184, 77, .6);
            background: rgba(255, 255, 255, .04);
            padding: 24px 22px;
            border-radius: 0 18px 18px 0;
        }

        .pain-item b {
            display: block;
            color: #FFDCA3;
            font-size: 15px;
            margin-bottom: 8px;
        }

        /* bento 方案 */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 22px;
        }

        .feature-card {
            grid-column: span 6;
            min-height: 250px;
        }

        .feature-card.feature-a,
        .feature-card.feature-d {
            grid-column: span 6;
        }

        .feature-a {
            min-height: 380px;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            background: linear-gradient(135deg, rgba(16, 29, 48, .2), rgba(16, 29, 48, .85)), url('/assets/images/coverpic/cover-1.webp') center / cover;
            border-color: rgba(255, 255, 255, .15);
            position: relative;
            overflow: hidden;
        }

        .feature-a::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(7, 12, 23, .85), transparent 55%);
            pointer-events: none;
        }

        .feature-a>* {
            position: relative;
            z-index: 2;
        }

        .feature-b,
        .feature-c {
            grid-column: span 6;
            min-height: 280px;
        }

        .feature-d {
            grid-column: span 8;
        }

        .feature-e {
            grid-column: span 4;
            background: rgba(255, 184, 77, .05);
            border-color: rgba(255, 184, 77, .18);
        }

        .feature-title {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            color: #fff;
            margin-bottom: 12px;
        }

        .feature-title svg {
            width: 20px;
            height: 20px;
        }

        .feature-card p {
            font-size: 14px;
            max-width: 54ch;
        }

        .feature-arrow {
            color: var(--cyan);
            font-weight: 700;
            margin-top: 20px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* 数据区 */
        .data-panel {
            border: 1px solid rgba(255, 255, 255, .1);
            background: linear-gradient(120deg, rgba(0, 225, 255, .06), rgba(47, 116, 255, .05));
            border-radius: 28px;
            padding: 34px 30px;
            overflow: hidden;
        }

        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .stat-num {
            font-size: clamp(2rem, 3.5vw, 3.4rem);
            font-weight: 900;
            color: #fff;
            font-variant-numeric: tabular-nums;
            line-height: 1.1;
            background: linear-gradient(120deg, #fff, #A6EFFF);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .stat-label {
            font-size: 13px;
            color: var(--text-mid);
            margin-top: 6px;
            line-height: 1.7;
            max-width: 20ch;
            margin-inline: auto;
        }

        /* 最新列表 */
        .latest-feed {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 24px;
            align-items: stretch;
        }

        .list-card {
            display: flex;
            flex-direction: column;
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .11);
            border-radius: 20px;
            overflow: hidden;
            transition: transform .25s, border-color .25s, box-shadow .25s;
            height: 100%;
        }

        .list-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 225, 255, .35);
            box-shadow: 0 14px 40px rgba(0, 0, 0, .3), 0 0 24px rgba(0, 225, 255, .1);
        }

        .list-card:first-child {
            grid-column: 1 / -1;
        }

        .post-media {
            position: relative;
            display: block;
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }

        .post-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

        .list-card:hover .post-media img {
            transform: scale(1.04);
        }

        .post-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(7, 12, 23, .5), transparent 55%);
        }

        .post-body {
            display: flex;
            flex: 1;
            flex-direction: column;
            gap: 10px;
            padding: 22px;
        }

        .post-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 13px;
            color: var(--text-dim);
        }

        .post-body h3 {
            font-size: 17px;
            line-height: 1.5;
            color: #fff;
            margin: 0;
        }

        .post-body p {
            font-size: 14px;
            color: var(--text-mid);
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .go-link {
            margin-top: auto;
            color: var(--cyan);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .go-link:hover {
            gap: 7px;
        }

        .empty-state {
            grid-column: 1 / -1;
            border: 1px dashed rgba(255, 255, 255, .2);
            border-radius: 20px;
            padding: 55px 20px;
            text-align: center;
            color: var(--text-dim);
            background: rgba(255, 255, 255, .03);
            font-size: 15px;
        }

        /* 证言 */
        .quote-wall {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 28px;
            align-items: start;
        }

        .quote-card {
            position: relative;
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: 22px;
            padding: 30px 28px 26px;
        }

        .quote-card:nth-child(2) {
            margin-top: 34px;
        }

        .quote-mark {
            color: rgba(0, 225, 255, .6);
            font-family: Georgia, serif;
            font-size: 52px;
            line-height: .7;
            display: block;
            margin-bottom: 12px;
        }

        .quote-card blockquote {
            margin: 0 0 16px;
            color: #E1EBF8;
            font-size: 15px;
        }

        .quote-src {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            color: var(--text-dim);
            font-size: 13px;
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding-top: 14px;
        }

        /* FAQ */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
        }

        .faq-item {
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: 18px;
            padding: 4px 6px;
            transition: border .2s, background .2s;
        }

        .faq-item[open] {
            background: rgba(255, 255, 255, .06);
            border-color: rgba(0, 225, 255, .25);
        }

        .faq-item summary {
            list-style: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            padding: 18px 18px;
            font-weight: 700;
            color: #E1EBF8;
            line-height: 1.6;
        }

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

        .faq-item .plus {
            position: relative;
            flex: 0 0 auto;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: rgba(0, 225, 255, .15);
            border: 1px solid rgba(0, 225, 255, .32);
        }

        .faq-item .plus::before,
        .faq-item .plus::after {
            content: "";
            position: absolute;
            top: 50%;
            left: 50%;
            width: 9px;
            height: 1.5px;
            background: var(--cyan);
            transform: translate(-50%, -50%);
            transition: transform .2s;
        }

        .faq-item .plus::after {
            transform: translate(-50%, -50%) rotate(90deg);
        }

        .faq-item[open] .plus::after {
            transform: translate(-50%, -50%) rotate(0deg);
        }

        .faq-answer {
            padding: 0 18px 18px;
            color: var(--text-mid);
            font-size: 14px;
        }

        /* CTA */
        .cta-panel {
            position: relative;
            border-radius: 28px;
            padding: 42px 44px;
            border: 1px solid rgba(0, 225, 255, .28);
            background: linear-gradient(120deg, rgba(0, 225, 255, .1), rgba(47, 116, 255, .08), rgba(16, 29, 48, .4));
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            overflow: hidden;
        }

        .cta-panel::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(0, 225, 255, .05) 1px, transparent 1px), linear-gradient(90deg, rgba(0, 225, 255, .05) 1px, transparent 1px);
            background-size: 32px 32px;
            opacity: .4;
            pointer-events: none;
        }

        .cta-copy {
            position: relative;
            z-index: 1;
            flex: 1;
            max-width: 560px;
        }

        .cta-form {
            position: relative;
            z-index: 1;
            display: flex;
            gap: 12px;
            width: 100%;
            max-width: 400px;
        }

        .cta-form input {
            flex: 1;
            min-height: 52px;
            border-radius: 14px;
            border: 1px solid rgba(255, 255, 255, .16);
            background: rgba(7, 12, 23, .6);
            padding: 0 16px;
            color: #fff;
            outline: none;
            transition: border .2s, box-shadow .2s;
        }

        .cta-form input::placeholder {
            color: var(--text-dim);
        }

        .cta-form input:focus {
            border-color: var(--cyan);
            box-shadow: 0 0 0 3px rgba(0, 225, 255, .15);
        }

        .cta-form .btn {
            border-radius: 14px;
        }

        .form-note {
            margin-top: 12px;
            color: var(--text-dark);
            color: var(--text-dim);
            font-size: 13px;
            text-align: right;
        }

        /* 页脚
        ---------------------------------------------- */
        .site-footer {
            border-top: 1px solid rgba(255, 255, 255, .07);
            background: #060A14;
            padding-top: 64px;
            padding-bottom: 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
        }

        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-title {
            color: var(--text-hi);
            font-weight: 800;
            margin-bottom: 14px;
            font-size: 15px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
            font-size: 14px;
        }

        .footer-links a {
            color: var(--text-mid);
            transition: color .2s, transform .2s;
            width: fit-content;
        }

        .footer-links a:hover {
            color: var(--cyan);
            transform: translateX(2px);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            margin-top: 46px;
            border-top: 1px solid rgba(255, 255, 255, .07);
            padding-top: 18px;
            color: var(--text-dim);
            font-size: 13px;
            flex-wrap: wrap;
        }

        .footer-tech {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        @media (max-width: 1100px) {
            .header-search {
                display: none;
            }
        }

        @media (max-width: 1024px) {
            .hero-deep {
                opacity: .3;
            }

            .hero-wrap {
                grid-template-columns: 1fr;
                padding-top: 34px;
            }

            .hero-side {
                min-height: 280px;
                justify-content: center;
            }

            .holo-card {
                width: min(440px, 100%);
                margin-left: 0;
            }

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

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

            .mobile-panel {
                display: flex;
            }

            .section-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 18px;
            }

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

            .feature-b,
            .feature-c {
                grid-column: span 6;
            }

            .feature-a {
                grid-column: span 12 !important;
            }
            .feature-d {
                grid-column: span 12 !important;
            }

            .feature-e {
                grid-column: span 12 !important;
            }

            .data-panel {
                padding: 28px 20px;
            }

            .cta-panel {
                flex-direction: column;
                align-items: stretch;
                padding: 32px 26px;
            }

            .cta-form {
                max-width: none;
            }

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

        @media (max-width: 760px) {
            .section {
                padding-top: 54px;
                padding-bottom: 54px;
            }

            .wrap {
                width: min(100% - 32px, 1180px);
            }

            .latest-feed {
                grid-template-columns: 1fr;
            }

            .quote-wall {
                grid-template-columns: 1fr;
            }

            .quote-card:nth-child(2) {
                margin-top: 0;
            }

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

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

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

            .feature-b,
            .feature-c,
            .feature-d,
            .feature-e,
            .feature-a {
                grid-column: span 1 !important;
                min-height: auto;
            }

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

            .site-footer {
                padding-top: 42px;
            }

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

            .cta-form {
                flex-direction: column;
            }

            .header-row {
                gap: 10px;
            }

            .site-header {
                height: 56px;
            }

            .brand-name {
                font-size: 16px;
            }

            .brand-mark {
                width: 30px;
                height: 30px;
                border-radius: 10px;
            }
        }

        @media (max-width: 480px) {
            .hero {
                padding-top: 56px;
            }

            .hero-actions {
                align-items: stretch;
                flex-direction: column;
            }

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

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

            .post-meta {
                flex-wrap: wrap;
            }
        }

/* roulang page: article */
:root {
        --bg: #070C17;
        --bg-deep: #0B1424;
        --bg-layer: #101D30;
        --cyber: #00E1FF;
        --electric: #2F74FF;
        --violet: #6C3BFF;
        --amber: #FFB84D;
        --text: #EDF3FF;
        --text-2: #A6BAD6;
        --muted: #7389AB;
        --border: rgba(255, 255, 255, 0.12);
        --glass: rgba(255, 255, 255, 0.05);
        --r-sm: 10px;
        --r-md: 16px;
        --r-lg: 20px;
        --shadow-1: 0 20px 60px rgba(0, 0, 0, 0.35);
        --shadow-2: 0 16px 50px rgba(0, 0, 0, 0.32);
        --glow: 0 0 26px rgba(0, 225, 255, 0.22);
        --font: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        margin: 0;
        background:
            radial-gradient(1200px 520px at 78% -4%, rgba(0, 225, 255, 0.09), transparent 62%),
            radial-gradient(900px 420px at 0% 30%, rgba(47, 116, 255, 0.06), transparent 60%),
            var(--bg);
        color: var(--text);
        font-family: var(--font);
        font-size: 16px;
        line-height: 1.8;
        -webkit-font-smoothing: antialiased;
    }

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

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

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

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

    input:focus-visible,
    button:focus-visible,
    a:focus-visible {
        outline: 2px solid rgba(0, 225, 255, 0.7);
        outline-offset: 3px;
        border-radius: 6px;
    }

    .wrap {
        width: min(1220px, 100% - 40px);
        margin: 0 auto;
    }

    ::selection {
        background: rgba(0, 225, 255, 0.18);
        color: #fff;
    }

    .site-header {
        position: sticky;
        top: 0;
        z-index: 80;
        height: 64px;
        background: rgba(7, 12, 23, 0.72);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .header-shell {
        height: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 24px;
    }

    .header-left,
    .header-right {
        display: flex;
        align-items: center;
        gap: 18px;
    }

    .brand-logo {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        white-space: nowrap;
    }

    .brand-logo .brand-mark {
        width: 34px;
        height: 34px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border-radius: 10px;
        background: linear-gradient(135deg, rgba(0, 225, 255, 0.22), rgba(47, 116, 255, 0.20));
        border: 1px solid rgba(0, 225, 255, 0.5);
        box-shadow: var(--glow);
        color: var(--cyber);
    }

    .brand-logo .brand-name {
        font-weight: 900;
        font-size: 20px;
        letter-spacing: -0.02em;
    }

    .brand-logo .brand-name small {
        display: inline-block;
        margin-left: 3px;
        font-size: 13px;
        font-weight: 600;
        color: var(--cyber);
        vertical-align: 2px;
    }

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

    .nav-link {
        position: relative;
        padding: 8px 14px;
        font-size: 14px;
        font-weight: 500;
        color: var(--text-2);
        border-radius: 9px;
        white-space: nowrap;
        transition: color .2s ease, background .2s ease;
    }

    .nav-link:hover {
        color: #fff;
        background: rgba(255, 255, 255, 0.06);
    }

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

    .nav-link.active::after {
        content: "";
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
        bottom: 1px;
        width: 22px;
        height: 2px;
        border-radius: 4px;
        background: var(--cyber);
        box-shadow: 0 0 12px var(--cyber);
    }

    .top-search {
        display: flex;
        align-items: center;
        border-radius: 999px;
        border: 1px solid rgba(255, 255, 255, 0.12);
        background: rgba(255, 255, 255, 0.04);
        padding: 4px 6px;
        transition: border .2s ease, box-shadow .2s ease;
    }

    .top-search:focus-within {
        border-color: rgba(0, 225, 255, 0.65);
        box-shadow: 0 0 0 3px rgba(0, 225, 255, 0.10);
    }

    .top-search input {
        width: 130px;
        padding: 4px 8px 4px 8px;
        background: transparent;
        border: 0;
        outline: none;
        font-size: 13px;
        color: #EDF3FF;
    }

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

    .top-search button {
        width: 30px;
        height: 30px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        background: rgba(255, 255, 255, 0.08);
        border-radius: 50%;
        color: var(--cyber);
        transition: background .2s, transform .2s;
    }

    .top-search button:hover {
        background: rgba(0, 225, 255, 0.18);
    }

    .btn-primary,
    .btn-line {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        min-height: 40px;
        padding: 0 18px;
        border-radius: 10px;
        font-size: 14px;
        font-weight: 700;
        white-space: nowrap;
        transition: transform .18s, box-shadow .18s, background .18s, border .18s;
    }

    .btn-primary {
        background: linear-gradient(135deg, var(--cyber), var(--electric));
        color: #fff;
        border: 1px solid rgba(255, 255, 255, 0.12);
        box-shadow: 0 8px 22px rgba(0, 142, 255, 0.25);
    }

    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 13px 28px rgba(0, 190, 255, 0.35), 0 0 20px rgba(0, 225, 255, 0.15);
    }

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

    .btn-line {
        background: rgba(255, 255, 255, 0.04);
        border: 1px solid rgba(255, 255, 255, 0.18);
        color: #EDF3FF;
    }

    .btn-line:hover {
        background: rgba(0, 225, 255, 0.10);
        border-color: rgba(0, 225, 255, 0.4);
        box-shadow: var(--glow);
        transform: translateY(-2px);
    }

    .header-right .btn-primary {
        min-height: 38px;
        padding: 0 16px;
        font-size: 13px;
    }

    .menu-toggle-ctrl {
        display: none;
    }

    .menu-toggle {
        display: none;
        cursor: pointer;
    }

    .mobile-panel {
        display: none;
    }

    /* 文章头部 */
    .article-hero {
        position: relative;
        overflow: hidden;
        padding: 74px 0 40px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .article-hero::before {
        content: "";
        position: absolute;
        inset: 0;
        background:
            linear-gradient(88deg, rgba(7, 12, 23, 0.96) 20%, rgba(7, 12, 23, 0.72) 60%, rgba(7, 12, 23, 0.48) 100%),
            url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
        z-index: -2;
    }

    .article-hero::after {
        content: "";
        position: absolute;
        inset: 0;
        background:
            linear-gradient(to top, rgba(7, 12, 23, 0.96), transparent 40%),
            url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='28' height='28' viewBox='0 0 28 28' fill='none'%3E%3Cpath d='M1 1h26v26H1z' stroke='rgba(0,225,255,0.09)'/%3E%3C/svg%3E");
        pointer-events: none;
        z-index: -1;
    }

    .crumb {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 8px;
        margin-bottom: 22px;
        font-size: 13px;
        color: var(--muted);
    }

    .crumb a {
        color: var(--text-2);
        transition: color .2s;
    }

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

    .crumb span {
        display: inline-flex;
        align-items: center;
    }

    .article-page-title {
        max-width: 960px;
        font-size: clamp(1.9rem, 3.4vw, 3.1rem);
        font-weight: 900;
        letter-spacing: -0.03em;
        line-height: 1.22;
        margin: 0 0 20px;
        color: #F6F9FF;
    }

    .article-hero-meta {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 10px 18px;
        padding-top: 18px;
        color: var(--text-2);
        font-size: 14px;
    }

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

    .meta-chip svg {
        color: var(--cyber);
    }

    .article-section {
        padding: 64px 0 30px;
    }

    .article-grid {
        display: grid;
        grid-template-columns: minmax(0, 760px) minmax(0, 320px);
        gap: 52px;
        justify-content: center;
    }

    .article-copy {
        min-width: 0;
    }

    .article-body {
        padding-bottom: 24px;
        word-break: break-word;
    }

    .article-body h1,
    .article-body h2,
    .article-body h3 {
        color: #F3F7FF;
        line-height: 1.4;
    }

    .article-body h2 {
        font-size: 28px;
        font-weight: 800;
        letter-spacing: -0.02em;
        margin: 2em 0 .7em;
        padding-left: 14px;
        border-left: 4px solid var(--cyber);
        border-radius: 2px;
    }

    .article-body h3 {
        font-size: 20px;
        font-weight: 700;
        margin: 1.9em 0 .6em;
    }

    .article-body p {
        margin: 0 0 1.25em;
        font-size: 16px;
        line-height: 1.9;
        color: #D5E2F5;
    }

    .article-body ul,
    .article-body ol {
        margin: 0 0 1.4em;
        padding-left: 1.3em;
        color: #D5E2F5;
        line-height: 1.9;
    }

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

    .article-body blockquote {
        margin: 2em 0;
        padding: 18px 22px;
        background: rgba(0, 225, 255, 0.05);
        border: 1px solid rgba(0, 225, 255, 0.18);
        border-left: 4px solid var(--cyber);
        border-radius: 12px;
        color: #EAF2FF;
    }

    .article-body img {
        margin: 28px auto;
        max-width: 100%;
        height: auto;
        border-radius: var(--r-md);
        border: 1px solid rgba(255, 255, 255, 0.12);
    }

    .article-body table {
        width: 100%;
        margin: 24px 0;
        border-collapse: collapse;
        background: rgba(255, 255, 255, 0.03);
        border-radius: 14px;
        overflow: hidden;
    }

    .article-body th,
    .article-body td {
        border-bottom: 1px solid rgba(255, 255, 255, 0.09);
        padding: 12px 14px;
        text-align: left;
        font-size: 14px;
    }

    .article-body th {
        background: rgba(0, 225, 255, 0.07);
        color: #EDF3FF;
        font-weight: 700;
    }

    .article-body a {
        color: var(--cyber);
        border-bottom: 1px solid transparent;
    }

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

    .article-body code {
        display: inline-block;
        background: rgba(0, 225, 255, 0.1);
        border: 1px solid rgba(0, 225, 255, 0.18);
        color: #DDF6FF;
        border-radius: 6px;
        padding: 1px 7px;
        font-size: .9em;
    }

    /* 右侧面板 */
    .article-aside {
        display: flex;
        flex-direction: column;
        gap: 22px;
        padding-top: 4px;
    }

    .side-card {
        background: var(--glass);
        border: 1px solid var(--border);
        border-radius: var(--r-md);
        padding: 22px;
        box-shadow: var(--shadow-2);
    }

    .side-card .side-title {
        font-size: 15px;
        font-weight: 800;
        color: #EDF3FF;
        margin: 0 0 14px;
        letter-spacing: .02em;
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .side-link-list {
        display: flex;
        flex-direction: column;
        gap: 2px;
    }

    .side-link-list a {
        padding: 9px 2px;
        font-size: 14px;
        color: var(--text-2);
        border-bottom: 1px dashed rgba(255, 255, 255, 0.08);
        transition: color .2s, padding-left .2s;
    }

    .side-link-list a:last-child {
        border-bottom: 0;
    }

    .side-link-list a:hover {
        color: var(--cyber);
        padding-left: 8px;
    }

    .empty-article {
        position: relative;
        text-align: center;
        background: rgba(255, 255, 255, 0.04);
        border: 1px dashed rgba(255, 255, 255, 0.2);
        border-radius: var(--r-lg);
        padding: 66px 32px;
    }

    .empty-article .empty-icon {
        width: 58px;
        height: 58px;
        margin: 0 auto 20px;
        display: flex;
        align-items: center;
        justify-content: center;
        background: rgba(0, 225, 255, 0.08);
        border-radius: 20px;
        color: var(--cyber);
        border: 1px solid rgba(0, 225, 255, 0.24);
    }

    .empty-article h2 {
        font-size: 22px;
        color: #EDF3FF;
        margin: 0 0 12px;
    }

    .empty-article p {
        max-width: 46ch;
        margin: 0 auto 0;
        color: var(--text-2);
    }

    .empty-article .btn-line {
        margin-top: 26px;
    }

    /* 按钮与相关栏目 */
    .nav-actions {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        margin-top: 22px;
    }

    .more-section {
        padding: 46px 0 70px;
    }

    .related-grid {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 20px;
        margin-top: 20px;
    }

    .related-card {
        padding: 0;
        background: rgba(255, 255, 255, 0.05);
        border: 1px solid var(--border);
        border-radius: var(--r-md);
        overflow: hidden;
        transition: transform .2s, border .2s, box-shadow .2s;
    }

    .related-card:hover {
        transform: translateY(-3px);
        border-color: rgba(0, 225, 255, 0.42);
        box-shadow: var(--shadow-2), var(--glow);
    }

    .related-media {
        position: relative;
        min-height: 150px;
        background: linear-gradient(135deg, rgba(0, 225, 255, 0.20), rgba(0, 42, 112, 0.6));
    }

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

    .related-media img[data-img-ok="true"] {
        opacity: 1;
    }

    .related-card .rel-body {
        padding: 18px 18px 20px;
    }

    .related-card h3 {
        margin: 0 0 10px;
        font-size: 17px;
        line-height: 1.45;
        font-weight: 700;
        color: #EDF3FF;
    }

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

    .related-card p {
        margin: 0;
        font-size: 14px;
        color: var(--text-2);
    }

    .tag-row {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        margin-top: 12px;
    }

    .tag {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: rgba(0, 225, 255, 0.08);
        border: 1px solid rgba(0, 225, 255, 0.18);
        color: #BEF4FF;
        font-size: 12px;
        font-weight: 600;
        padding: 3px 10px;
        border-radius: 999px;
    }

    /* CTA */
    .action-strip {
        padding: 14px 0 70px;
    }

    .action-strip-card {
        position: relative;
        overflow: hidden;
        border-radius: 24px;
        padding: 32px 34px 34px;
        background: linear-gradient(135deg, rgba(0, 225, 255, 0.10), rgba(47, 116, 255, 0.08) 42%, rgba(7, 12, 23, 0.7)),
            url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
        border: 1px solid rgba(0, 225, 255, 0.28);
        box-shadow: 0 24px 80px rgba(0, 0, 0, 0.24);
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 32px;
    }

    .action-strip-card h2 {
        margin: 0 0 8px;
        font-size: clamp(1.2rem, 2.2vw, 1.8rem);
        font-weight: 900;
        letter-spacing: -0.01em;
    }

    .action-strip-card p {
        margin: 0;
        font-size: 14px;
        color: var(--text-2);
        max-width: 52ch;
    }

    .simple-form {
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 8px 8px 8px 16px;
        background: rgba(255, 255, 255, 0.07);
        border: 1px solid rgba(255, 255, 255, 0.18);
        backdrop-filter: blur(10px);
        border-radius: 14px;
        max-width: 430px;
        min-width: min(420px, 100%);
        flex: 0 0 auto;
    }

    .simple-form input {
        width: 100%;
        padding: 10px 4px;
        border: 0;
        background: transparent;
        outline: none;
        color: #EDF3FF;
        font-size: 14px;
    }

    .simple-form input::placeholder {
        color: rgba(166, 186, 214, 0.8);
    }

    /* 页脚 */
    .site-footer {
        background: #060A13;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        padding: 52px 0 24px;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.6fr 1fr 1fr;
        gap: 40px;
        margin-bottom: 38px;
    }

    .footer-brand .brand-logo {
        margin-bottom: 12px;
    }

    .footer-title {
        margin: 4px 0 14px;
        font-size: 14px;
        font-weight: 700;
        color: #EDF3FF;
    }

    .footer-links {
        display: flex;
        flex-direction: column;
        gap: 8px;
    }

    .footer-links a {
        color: var(--text-2);
        font-size: 14px;
        width: max-content;
    }

    .footer-links a:hover {
        color: var(--cyber);
    }

    .footer-bottom {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        gap: 10px;
        padding-top: 22px;
        border-top: 1px solid rgba(255, 255, 255, 0.07);
        font-size: 13px;
        color: var(--muted);
    }

    .footer-tech {
        display: flex;
        align-items: center;
        gap: 18px;
    }

    /* 响应式 */
    @media (max-width: 1080px) {
        .site-header {
            height: 56px;
        }

        .top-search input {
            width: 96px;
        }

        .article-grid {
            grid-template-columns: minmax(0, 1fr);
            gap: 36px;
        }

        .article-aside {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 16px;
        }
    }

    @media (max-width: 900px) {
        .header-right .top-search,
        .header-right .btn-primary {
            display: none;
        }

        .menu-toggle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            color: #EDF3FF;
        }

        .mobile-panel {
            position: fixed;
            top: 56px;
            left: 0;
            right: 0;
            z-index: 90;
            background: rgba(7, 12, 23, 0.92);
            backdrop-filter: blur(26px);
            -webkit-backdrop-filter: blur(26px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.10);
            box-shadow: 0 24px 70px rgba(0, 0, 0, 0.26);
        }

        .menu-toggle-ctrl:checked+.header-shell+.mobile-panel {
            display: block;
        }

        .mobile-panel .mobile-nav {
            display: flex;
            flex-direction: column;
            padding: 18px 0;
        }

        .mobile-panel .nav-link {
            padding: 14px 18px;
            font-size: 16px;
            color: #EAF2FF;
        }

        .mobile-panel .nav-link.active {
            color: var(--cyber);
        }

        .mobile-panel .nav-link.active::after {
            display: none;
        }

        .mobile-panel .mobile-actions {
            display: flex;
            gap: 12px;
            padding: 0 18px 18px;
        }

        .mobile-panel .btn-primary {
            flex: 1;
        }
    }

    @media (max-width: 760px) {
        .wrap {
            width: min(100% - 28px, 1220px);
        }

        .empty-article {
            padding: 50px 20px;
        }

        .article-section {
            padding: 44px 0 20px;
        }

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

        .action-strip-card {
            flex-direction: column;
            align-items: stretch;
            padding: 24px;
        }

        .simple-form {
            min-width: 0;
        }

        .footer-grid {
            grid-template-columns: 1fr;
            gap: 30px;
            margin-bottom: 28px;
        }

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

        .footer-tech {
            gap: 8px;
            flex-wrap: wrap;
        }

        .article-page-title {
            font-size: clamp(1.7rem, 6.5vw, 2.2rem);
        }

        .menu-toggle-ctrl:checked+.header-shell+.mobile-panel {
            display: block;
        }
    }

/* roulang page: category1 */
:root {
            --abyss: #070C17;
            --deep: #0B1424;
            --layer: #101D30;
            --cyber: #00E1FF;
            --electric: #2F74FF;
            --grape: #6C3BFF;
            --amber: #FFB84D;
            --t1: #EDF3FF;
            --t2: #A6BAD6;
            --t3: #7389AB;
            --border: rgba(255, 255, 255, 0.12);
            --glass: rgba(255, 255, 255, 0.05);
            --radius-xl: 24px;
            --radius-lg: 20px;
            --radius-md: 16px;
            --radius-sm: 10px;
            --shadow-default: 0 18px 36px rgba(0, 0, 0, 0.28);
            --shadow-glow: 0 0 0 1px rgba(0, 225, 255, 0.24), 0 20px 36px rgba(0, 0, 0, 0.42);
            --header-h: 64px;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 84px;
        }

        body {
            margin: 0;
            padding-top: var(--header-h);
            background-color: var(--abyss);
            background-image: radial-gradient(circle at 18% -10%, rgba(28, 64, 128, 0.35), transparent 36%), radial-gradient(circle at 90% 8%, rgba(0, 225, 255, 0.10), transparent 35%);
            color: var(--t1);
            font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
            font-size: 16px;
            line-height: 1.8;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        body::before {
            content: "";
            position: fixed;
            inset: 0;
            z-index: -1;
            pointer-events: none;
            opacity: 0.32;
            background-image: linear-gradient(rgba(0, 225, 255, 0.025) 1px, transparent 1px), linear-gradient(90deg, rgba(0, 225, 255, 0.025) 1px, transparent 1px);
            background-size: 52px 52px;
        }

        h1, h2, h3 {
            color: #ffffff;
            line-height: 1.22;
            letter-spacing: -0.02em;
            margin: 0 0 0.45em;
        }

        h1 {
            font-weight: 900;
        }

        h2 {
            font-size: clamp(1.7rem, 3vw, 2.45rem);
            font-weight: 800;
        }

        h3 {
            font-size: 1.12rem;
            font-weight: 700;
        }

        p {
            margin: 0 0 1em;
        }

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

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

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

        ::selection {
            background: rgba(0, 225, 255, 0.28);
            color: #ffffff;
        }

        .site-container {
            width: min(1200px, 92%);
            margin-left: auto;
            margin-right: auto;
        }

        .section-block {
            padding: 76px 0;
        }

        .text-grad {
            background: linear-gradient(135deg, var(--cyber), var(--electric));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .glass-card {
            background: var(--glass);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-default);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease, background .25s ease;
        }

        .glass-card:hover {
            transform: translateY(-2px);
            border-color: rgba(0, 225, 255, 0.38);
            box-shadow: var(--shadow-glow);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 3px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: .03em;
            background: rgba(0, 225, 255, 0.08);
            border: 1px solid rgba(0, 225, 255, 0.30);
            color: var(--cyber);
            white-space: nowrap;
        }

        .badge-blue {
            background: rgba(47, 116, 255, 0.10);
            border-color: rgba(47, 116, 255, 0.30);
            color: #8db6ff;
        }

        .badge-violet {
            background: rgba(108, 59, 255, 0.10);
            border-color: rgba(108, 59, 255, 0.30);
            color: #c2a8ff;
        }

        .badge-amber {
            background: rgba(255, 184, 77, 0.10);
            border-color: rgba(255, 184, 77, 0.32);
            color: var(--amber);
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 60;
            height: var(--header-h);
            background: rgba(7, 12, 23, 0.72);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            transition: background .3s ease, box-shadow .3s ease;
        }

        .site-header.scrolled {
            background: rgba(7, 12, 23, 0.92);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.24);
        }

        .header-inner {
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 22px;
        }

        .header-left {
            flex: 1;
            display: flex;
            align-items: center;
            gap: 26px;
            min-width: 0;
        }

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

        .brand-logo {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: #ffffff;
            font-weight: 800;
            font-size: 17px;
            line-height: 1.1;
        }

        .brand-mark {
            display: grid;
            place-items: center;
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(145deg, rgba(0, 225, 255, 0.32), rgba(47, 116, 255, 0.22));
            border: 1px solid rgba(0, 225, 255, 0.46);
            color: #ffffff;
            box-shadow: 0 8px 20px rgba(0, 225, 255, 0.18);
        }

        .brand-name {
            white-space: nowrap;
            display: flex;
            align-items: baseline;
        }

        .brand-name small {
            margin-left: 5px;
            font-size: 12px;
            font-weight: 500;
            letter-spacing: .04em;
            color: var(--t2);
        }

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

        .nav-link {
            padding: 7px 13px;
            border-radius: 999px;
            color: var(--t2);
            font-size: 14px;
            font-weight: 500;
            letter-spacing: .02em;
            transition: color .2s ease, background .2s ease;
        }

        .nav-link:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-link.active {
            color: #ffffff;
            background: rgba(0, 225, 255, 0.12);
            position: relative;
        }

        .nav-link.active::after {
            content: "";
            display: block;
            height: 2px;
            width: 16px;
            margin: 4px auto 0;
            border-radius: 2px;
            background: var(--cyber);
            box-shadow: 0 0 12px var(--cyber);
        }

        .icon-btn {
            display: inline-grid;
            place-items: center;
            width: 38px;
            height: 38px;
            border-radius: 12px;
            border: 1px solid var(--border);
            background: rgba(255, 255, 255, 0.04);
            color: var(--t2);
            cursor: pointer;
            transition: border-color .2s ease, color .2s ease, background .2s ease, transform .2s ease;
        }

        .icon-btn:hover {
            color: var(--cyber);
            background: rgba(0, 225, 255, 0.08);
            border-color: rgba(0, 225, 255, 0.35);
            transform: translateY(-1px);
        }

        .item-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 44px;
            padding: 0 20px;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.14);
            background: rgba(255, 255, 255, 0.04);
            color: var(--t1);
            font-weight: 600;
            font-size: 15px;
            line-height: 1;
            cursor: pointer;
            transition: background .2s ease, border-color .2s ease, color .2s ease, transform .2s ease, box-shadow .2s ease;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .item-btn:hover {
            background: rgba(0, 225, 255, 0.10);
            border-color: rgba(0, 225, 255, 0.42);
            color: #ffffff;
            transform: translateY(-1px);
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--cyber) 0%, var(--electric) 68%, #2b52e8 130%);
            border: 1px solid rgba(255, 255, 255, 0.16);
            color: #ffffff;
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, #43ecff 0%, #3e8aff 68%, #5d6cff 130%);
            box-shadow: 0 12px 26px rgba(0, 225, 255, 0.22);
            border-color: rgba(255, 255, 255, 0.08);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
            filter: brightness(0.94);
        }

        .btn-ghost {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.18);
        }

        .btn-ghost:hover {
            background: rgba(0, 225, 255, 0.08);
            border-color: rgba(0, 225, 255, 0.36);
        }

        .menu-toggle {
            display: none;
            cursor: pointer;
        }

        .search-panel {
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            padding: 14px 0 20px;
            background: rgba(7, 12, 23, 0.96);
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(20px);
            opacity: 0;
            visibility: hidden;
            transform: translateY(-10px);
            transition: opacity .24s ease, transform .24s ease, visibility .24s ease;
        }

        .search-panel.open {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .search-panel .search-form {
            display: flex;
            gap: 12px;
        }

        .search-form input {
            flex: 1;
            min-width: 0;
            height: 46px;
            border-radius: 12px;
            padding: 0 16px;
            border: 1px solid var(--border);
            background: rgba(255, 255, 255, 0.06);
            color: #ffffff;
            outline: none;
            transition: border-color .2s ease, box-shadow .2s ease;
        }

        .search-form input::placeholder {
            color: var(--t3);
        }

        .search-form input:focus {
            border-color: rgba(0, 225, 255, 0.65);
            box-shadow: 0 0 0 3px rgba(0, 225, 255, 0.13);
        }

        .mobile-menu {
            position: fixed;
            top: var(--header-h);
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 55;
            background: rgba(7, 12, 23, 0.96);
            backdrop-filter: blur(22px);
            -webkit-backdrop-filter: blur(22px);
            padding: 34px 26px;
            display: flex;
            flex-direction: column;
            gap: 20px;
            opacity: 0;
            visibility: hidden;
            transform: translateX(30px);
            transition: opacity .28s ease, transform .28s ease, visibility .28s ease;
        }

        .mobile-menu.open {
            opacity: 1;
            visibility: visible;
            transform: translateX(0);
        }

        .mobile-menu nav {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .mobile-menu .nav-link {
            font-size: 22px;
            font-weight: 700;
            padding: 14px 10px;
            border-radius: 14px;
            color: var(--t1);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .mobile-menu .nav-link.active {
            color: var(--cyber);
            background: rgba(0, 225, 255, 0.08);
        }

        .page-hero {
            position: relative;
            overflow: hidden;
            padding: 78px 0 70px;
            background: radial-gradient(circle at 78% 16%, rgba(0, 225, 255, 0.16), transparent 34%), radial-gradient(circle at 12% 24%, rgba(108, 59, 255, 0.12), transparent 32%), #070c17;
        }

        .page-hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center 30%;
            opacity: 0.32;
            z-index: 0;
        }

        .page-hero-bg::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to right, rgba(7, 12, 23, 0.92), rgba(7, 12, 23, 0.44) 55%, rgba(7, 12, 23, 0.86));
        }

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

        .hero-breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--t3);
            margin-bottom: 22px;
        }

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

        .hero-breadcrumb i {
            font-size: 11px;
            opacity: .8;
        }

        .page-hero h1 {
            font-size: clamp(2.05rem, 4.6vw, 3.45rem);
            margin-bottom: 16px;
            max-width: 14em;
        }

        .page-hero .lead {
            max-width: 58em;
            font-size: 17px;
            color: var(--t2);
            margin-bottom: 30px;
        }

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

        .hero-statusline {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 18px;
            margin-top: 34px;
            color: var(--t2);
            font-size: 13px;
        }

        .hero-statusline .dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            margin-right: 7px;
            border-radius: 50%;
            background: var(--cyber);
            box-shadow: 0 0 10px var(--cyber);
        }

        .hero-panel {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 14px;
            padding: 12px 16px;
            backdrop-filter: blur(10px);
        }

        .status-strip {
            background: transparent;
            padding-top: 48px;
        }

        .status-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 18px;
        }

        .status-card {
            grid-column: span 3;
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 20px 20px;
            border-radius: var(--radius-md);
            background: var(--glass);
            border: 1px solid var(--border);
            backdrop-filter: blur(10px);
            transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
        }

        .status-card:hover {
            transform: translateY(-2px);
            border-color: rgba(0, 225, 255, 0.32);
            box-shadow: var(--shadow-glow);
        }

        .status-card i {
            display: grid;
            place-items: center;
            width: 36px;
            height: 36px;
            flex-shrink: 0;
            border-radius: 11px;
            background: rgba(0, 225, 255, 0.12);
            color: var(--cyber);
            border: 1px solid rgba(0, 225, 255, 0.26);
            font-size: 15px;
        }

        .status-card h3 {
            margin-bottom: 3px;
            font-size: 15px;
        }

        .status-card p {
            margin: 0;
            font-size: 13px;
            color: var(--t2);
            line-height: 1.65;
        }

        .section-head {
            margin-bottom: 44px;
        }

        .section-head.center {
            text-align: center;
            max-width: 820px;
            margin-left: auto;
            margin-right: auto;
        }

        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: .12em;
            color: var(--cyber);
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-head.lead {
            font-size: 15px;
        }

        .split-block {
            display: grid;
            grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
            gap: 54px;
            align-items: center;
        }

        .media-frame {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-default);
            background: linear-gradient(145deg, rgba(47, 116, 255, 0.18), rgba(0, 225, 255, 0.08)), var(--layer);
        }

        .media-frame::after {
            content: "";
            position: absolute;
            inset: 0;
            pointer-events: none;
            border-radius: inherit;
            box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
        }

        .media-frame img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
        }

        .media-frame .media-overlay {
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 14px;
            padding: 16px 16px;
            background: rgba(7, 12, 23, 0.7);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 14px;
            backdrop-filter: blur(12px);
            font-size: 13px;
            color: var(--t2);
            line-height: 1.6;
        }

        .list-check {
            display: grid;
            gap: 22px;
            margin-top: 24px;
            list-style: none;
            padding: 0;
        }

        .list-check li {
            display: flex;
            gap: 14px;
        }

        .list-check .tick-icon {
            display: grid;
            place-items: center;
            width: 26px;
            height: 26px;
            flex-shrink: 0;
            margin-top: 3px;
            border-radius: 9px;
            background: rgba(0, 225, 255, 0.13);
            color: var(--cyber);
            font-size: 12px;
            border: 1px solid rgba(0, 225, 255, 0.28);
        }

        .list-check h3 {
            font-size: 16px;
            margin: 0 0 3px;
        }

        .list-check p {
            font-size: 14px;
            color: var(--t2);
            line-height: 1.7;
        }

        .status-cover-note {
            display: flex;
            margin-top: 26px;
            gap: 12px;
            padding: 12px 16px;
            border-radius: 14px;
            background: rgba(0, 225, 255, 0.04);
            border: 1px dashed rgba(0, 225, 255, 0.26);
            color: var(--t2);
            font-size: 13px;
        }

        .timeline {
            position: relative;
            margin-top: 48px;
            padding-top: 10px;
        }

        .timeline::before {
            content: "";
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 12px;
            width: 2px;
            transform: translateX(-50%);
            background: linear-gradient(to bottom, var(--cyber), rgba(0, 225, 255, 0.16) 72%, transparent);
            opacity: .75;
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            display: flex;
            justify-content: flex-start;
            margin-bottom: 22px;
            width: 100%;
        }

        .timeline-item:nth-child(even) {
            justify-content: flex-end;
        }

        .timeline-dot {
            position: absolute;
            left: 50%;
            top: 28px;
            width: 12px;
            height: 12px;
            transform: translate(-50%, -50%);
            border-radius: 50%;
            background: var(--abyss);
            border: 3px solid var(--cyber);
            box-shadow: 0 0 0 5px rgba(0, 225, 255, 0.09), 0 0 18px rgba(0, 225, 255, 0.55);
            z-index: 2;
        }

        .timeline-item:nth-child(even) .timeline-dot {
            background: var(--abyss);
            border-color: #8fb8ff;
        }

        .tl-card {
            width: calc(50% - 44px);
            padding: 22px 22px;
            border-radius: var(--radius-md);
            background: var(--glass);
            border: 1px solid var(--border);
            backdrop-filter: blur(10px);
            transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
        }

        .tl-card:hover {
            transform: translateY(-2px);
            border-color: rgba(0, 225, 255, 0.36);
            box-shadow: var(--shadow-glow);
        }

        .tl-card .tl-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }

        .tl-time {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 13px;
            font-weight: 700;
            color: var(--cyber);
            letter-spacing: .02em;
        }

        .tl-time i {
            font-size: 11px;
            opacity: .8;
        }

        .tl-card h3 {
            font-size: 17px;
            margin-bottom: 7px;
        }

        .tl-card p {
            margin: 0;
            font-size: 14px;
            color: var(--t2);
            line-height: 1.78;
        }

        .timeline-legend {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
            margin-top: 34px;
            font-size: 12px;
            color: var(--t3);
        }

        .timeline-legend span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }

        .legend-swatch {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--cyber);
            box-shadow: 0 0 8px rgba(0, 225, 255, 0.55);
        }

        .legend-swatch.blue {
            background: #8fb8ff;
            box-shadow: 0 0 8px rgba(47, 116, 255, 0.35);
        }

        .faq-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 16px;
            align-items: start;
        }

        .faq-item {
            background: var(--glass);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            backdrop-filter: blur(10px);
            transition: border-color .25s ease, box-shadow .25s ease, transform .25s ease;
            padding: 4px 22px 18px;
        }

        .faq-item:hover {
            border-color: rgba(0, 225, 255, 0.26);
        }

        .faq-item[open] {
            box-shadow: 0 0 0 1px rgba(0, 225, 255, 0.12), 0 18px 24px rgba(0, 0, 0, 0.16);
        }

        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            list-style: none;
            padding: 13px 0 8px;
            font-weight: 600;
            color: #ffffff;
            font-size: 15px;
            line-height: 1.5;
            user-select: none;
        }

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

        .faq-item summary i {
            flex-shrink: 0;
            display: grid;
            place-items: center;
            width: 24px;
            height: 24px;
            border-radius: 8px;
            background: rgba(0, 225, 255, 0.10);
            border: 1px solid rgba(0, 225, 255, 0.22);
            color: var(--cyber);
            font-size: 12px;
            font-weight: 400;
            transition: transform .24s ease, background .24s ease;
        }

        .faq-item[open] summary i {
            transform: rotate(45deg);
            background: rgba(255, 184, 77, 0.18);
            color: var(--amber);
            border-color: rgba(255, 184, 77, 0.30);
        }

        .faq-item p {
            font-size: 14px;
            color: var(--t2);
            line-height: 1.82;
            margin: 4px 0 0;
        }

        .cta-zone {
            padding-top: 36px;
        }

        .cta-card {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-xl);
            border: 1px solid rgba(0, 225, 255, 0.26);
            background: linear-gradient(145deg, rgba(0, 225, 255, 0.07), rgba(47, 116, 255, 0.09) 42%, rgba(108, 59, 255, 0.07)), rgba(16, 29, 48, 0.86);
            padding: 54px 56px;
            backdrop-filter: blur(14px);
            box-shadow: var(--shadow-default);
        }

        .cta-card::after {
            content: "";
            position: absolute;
            top: -120px;
            right: -80px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 225, 255, 0.18), transparent 72%);
            pointer-events: none;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            margin-top: 10px;
        }

        .subscribe-form input {
            flex: 1;
            min-width: 0;
            height: 48px;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.14);
            background: rgba(7, 12, 23, 0.56);
            color: #ffffff;
            padding: 0 16px;
            outline: none;
            backdrop-filter: blur(8px);
            transition: border-color .2s ease, box-shadow .2s ease;
        }

        .subscribe-form input::placeholder {
            color: var(--t3);
        }

        .subscribe-form input:focus {
            border-color: rgba(0, 225, 255, 0.6);
            box-shadow: 0 0 0 3px rgba(0, 225, 255, 0.14);
        }

        .form-note {
            margin-top: 12px;
            font-size: 12px;
            color: var(--t3);
        }

        .site-footer {
            background: #050810;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 54px 0 26px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 42px;
            padding-bottom: 38px;
        }

        .footer-brand .brand-logo {
            margin-bottom: 14px;
        }

        .footer-title {
            font-weight: 600;
            color: #ffffff;
            font-size: 15px;
            letter-spacing: .02em;
            margin-bottom: 14px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
            font-size: 14px;
            color: var(--t2);
        }

        .footer-links a {
            display: inline-flex;
            align-items: center;
            width: fit-content;
            transition: color .2s ease;
        }

        .footer-links a::before {
            content: "";
            display: inline-block;
            width: 4px;
            height: 4px;
            border-radius: 999px;
            margin-right: 9px;
            background: rgba(0, 225, 255, 0.44);
            transition: background .2s ease, box-shadow .2s ease;
        }

        .footer-links a:hover {
            color: var(--cyber);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            align-items: center;
            justify-content: space-between;
            padding-top: 22px;
            border-top: 1px solid rgba(255, 255, 255, 0.07);
            color: var(--t3);
            font-size: 13px;
        }

        .footer-tech {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
            align-items: center;
        }

        @media (max-width: 1023px) {
            .status-card {
                grid-column: span 6;
            }

            .split-block {
                gap: 36px;
            }

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

            .footer-brand {
                grid-column: span 2;
            }
        }

        @media (max-width: 767px) {
            :root {
                --header-h: 56px;
            }

            .header-left {
                gap: 8px;
            }

            .header-left .main-nav {
                display: none;
            }

            .menu-toggle {
                display: inline-grid;
            }

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

            .header-right {
                gap: 6px;
            }

            .section-block {
                padding: 52px 0;
            }

            .page-hero {
                padding: 54px 0 52px;
            }

            .page-hero h1 {
                font-size: 2.2rem;
            }

            .page-hero .lead {
                font-size: 15px;
            }

            .status-card {
                grid-column: span 12;
            }

            .split-block {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .split-block .media-frame {
                order: 1;
            }

            .timeline::before {
                left: 10px;
            }

            .timeline-dot {
                left: 10px;
                width: 10px;
                height: 10px;
                margin-top: 6px;
                transform: translate(-50%, -50%);
            }

            .timeline-item,
            .timeline-item:nth-child(even) {
                justify-content: flex-end;
                text-align: left;
            }

            .timeline-item .tl-card,
            .timeline-item:nth-child(even) .tl-card {
                width: calc(100% - 40px);
            }

            .timeline-legend {
                justify-content: flex-start;
            }

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

            .cta-card {
                padding: 30px 22px;
                border-radius: var(--radius-lg);
            }

            .subscribe-form {
                flex-direction: column;
            }

            .subscribe-form .btn {
                width: 100%;
            }

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

            .footer-brand {
                grid-column: auto;
            }

            .search-panel .search-form {
                flex-direction: column;
            }

            .search-panel .btn {
                width: 100%;
            }
        }

        @media (max-width: 480px) {
            .brand-name {
                font-size: 15px;
            }

            .brand-name small {
                display: none;
            }

            .brand-mark {
                width: 32px;
                height: 32px;
                border-radius: 10px;
            }

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

            .hero-statusline {
                gap: 12px;
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category2 */
:root {
            --abyss: #070C17;
            --deep: #0B1424;
            --layer: #101D30;
            --cyber: #00E1FF;
            --electric: #2F74FF;
            --violet: #6C3BFF;
            --amber: #FFB84D;
            --text-main: #EDF3FF;
            --text-soft: #A6BAD6;
            --text-mute: #7389AB;
            --line: rgba(255, 255, 255, .12);
            --line-soft: rgba(255, 255, 255, .07);
            --glass: rgba(255, 255, 255, .055);
            --radius: 18px;
            --shadow: 0 20px 48px rgba(0, 0, 0, .28);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth
        }
        body {
            font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
            background: var(--abyss);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.85;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        body.no-scroll {
            overflow: hidden;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .25s ease, border-color .25s ease, background .25s ease, transform .25s ease, box-shadow .25s ease;
        }
        button {
            font: inherit;
            border: 0;
            background: none;
            color: inherit;
            cursor: pointer;
        }
        input {
            font: inherit;
            background: transparent;
            border: 0;
            outline: none;
            color: var(--text-main);
        }
        .wrap {
            width: min(1200px, calc(100% - 40px));
            margin-inline: auto;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 80;
            height: 64px;
            background: rgba(7, 12, 23, .76);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, .07);
        }
        .header-inner {
            width: min(1200px, calc(100% - 40px));
            margin-inline: auto;
            height: 64px;
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--text-main);
            flex-shrink: 0;
        }
        .brand-mark {
            width: 38px;
            height: 38px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: linear-gradient(145deg, rgba(0, 225, 255, .14), rgba(47, 116, 255, .18));
            border: 1px solid rgba(0, 225, 255, .35);
            color: var(--cyber);
            box-shadow: 0 0 22px rgba(0, 225, 255, .22);
        }
        .brand-name {
            font-weight: 800;
            font-size: 20px;
            white-space: nowrap;
        }
        .brand-name small {
            font-weight: 600;
            font-size: 11px;
            color: var(--text-mute);
            margin-left: 6px;
            letter-spacing: .08em;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            min-height: 40px;
            padding: 0 16px;
            color: var(--text-soft);
            border-radius: 12px;
            font-size: 15px;
            font-weight: 500;
            position: relative;
            transition: color .25s, background .25s;
        }
        .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, .06);
        }
        .nav-link.active {
            color: var(--cyber);
            font-weight: 700;
        }
        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            border-radius: 2px;
            background: linear-gradient(90deg, var(--cyber), transparent);
            box-shadow: 0 0 9px rgba(0, 225, 255, .7);
        }
        .header-tools {
            margin-left: auto;
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 0 22px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 700;
            line-height: 1;
            transition: all .25s ease;
            white-space: nowrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--cyber), var(--electric));
            color: #fff;
            border: 0;
            box-shadow: 0 8px 24px rgba(0, 225, 255, .25);
        }
        .btn-primary:hover {
            filter: brightness(1.08);
            box-shadow: 0 10px 32px rgba(0, 225, 255, .38);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 4px 14px rgba(0, 225, 255, .22);
        }
        .btn-ghost {
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .18);
            color: var(--text-main);
            box-shadow: inset 0 0 0 transparent;
        }
        .btn-ghost:hover {
            background: rgba(0, 225, 255, .09);
            border-color: rgba(0, 225, 255, .5);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 0 22px rgba(0, 225, 255, .12);
        }
        .menu-btn,
        .nav-cta-mobile {
            display: none;
        }

        .page-hero {
            position: relative;
            overflow: hidden;
            padding: 72px 0 28px;
            background-image: radial-gradient(ellipse at 70% -20%, rgba(0, 225, 255, .2), transparent 40%), radial-gradient(ellipse at 30% 100%, rgba(108, 59, 255, .12), transparent 42%), linear-gradient(180deg, rgba(7, 12, 23, .2), rgba(7, 12, 23, .96)), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center 60%;
            background-repeat: no-repeat;
            border-bottom: 1px solid rgba(255, 255, 255, .05);
        }
        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            pointer-events: none;
            background-image: linear-gradient(rgba(0, 225, 255, .07) 1px, transparent 1px), linear-gradient(90deg, rgba(0, 225, 255, .07) 1px, transparent 1px);
            background-size: 42px 42px;
            mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .85), transparent 75%);
            -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .85), transparent 75%);
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--text-mute);
            margin-bottom: 20px;
            position: relative;
            z-index: 2;
        }
        .breadcrumb a:hover {
            color: var(--cyber);
        }
        .breadcrumb-sep {
            opacity: .5;
        }
        .hero-wrap {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.2fr .8fr;
            gap: 40px;
            align-items: end;
            padding-bottom: 44px;
        }
        .hero-title {
            font-size: clamp(2.1rem, 4.6vw, 3.6rem);
            font-weight: 900;
            letter-spacing: -0.02em;
            line-height: 1.25;
            color: var(--text-main);
            margin-top: 8px;
        }
        .hero-title .text-gradient {
            color: var(--cyber);
        }
        .hero-lead {
            margin-top: 18px;
            color: var(--text-soft);
            max-width: 58ch;
            font-size: 17px;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 24px;
        }
        .hero-tag {
            padding: 6px 14px;
            font-size: 13px;
            color: var(--text-soft);
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: 999px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 28px;
        }

        .hero-card {
            background: rgba(255, 255, 255, .07);
            border: 1px solid rgba(0, 225, 255, .26);
            border-radius: 20px;
            padding: 24px;
            box-shadow: 0 24px 60px rgba(0, 0, 0, .35), 0 0 40px rgba(0, 225, 255, .08);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            position: relative;
            overflow: hidden;
        }
        .hero-card::after {
            content: "";
            position: absolute;
            width: 180px;
            height: 180px;
            right: -60px;
            top: -60px;
            background: radial-gradient(circle, rgba(0, 225, 255, .3), transparent 70%);
        }
        .hero-card-header {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--cyber);
            font-weight: 800;
            font-size: 16px;
        }
        .hero-card-header span:first-child {
            width: 9px;
            height: 9px;
            border-radius: 50%;
            background: var(--cyber);
            box-shadow: 0 0 12px var(--cyber);
        }
        .hero-card p {
            margin-top: 12px;
            color: var(--text-soft);
            font-size: 14px;
        }
        .hero-card-list {
            margin-top: 16px;
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .hero-card-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-main);
            font-size: 14px;
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: 10px;
            padding: 9px 12px;
        }
        .hero-card-list b {
            color: var(--cyber);
            font-variant-numeric: tabular-nums;
            font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
            margin-right: 2px;
        }

        .guide-section {
            background: linear-gradient(180deg, var(--abyss), var(--deep) 45%, var(--abyss));
            padding: 60px 0 70px;
        }
        .guide-layout {
            display: grid;
            grid-template-columns: 280px minmax(0, 1fr);
            gap: 38px;
            align-items: start;
        }
        .guide-toc {
            position: sticky;
            top: 92px;
            background: rgba(255, 255, 255, .05);
            border: 1px solid var(--line-soft);
            border-radius: 20px;
            padding: 26px 20px;
            box-shadow: 0 22px 56px rgba(0, 0, 0, .2);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .toc-title {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 15px;
            letter-spacing: .04em;
            color: var(--text-main);
            margin-bottom: 18px;
        }
        .toc-title svg {
            color: var(--cyber);
        }
        .gtoc-list {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .gtoc-link {
            display: flex;
            align-items: center;
            gap: 10px;
            width: 100%;
            min-height: 44px;
            padding: 0 12px;
            border-radius: 12px;
            color: var(--text-soft);
            font-size: 15px;
            border: 1px solid transparent;
        }
        .gtoc-link i {
            font-style: normal;
            font-size: 12px;
            color: var(--text-mute);
            font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
            transition: color .25s;
        }
        .gtoc-link:hover,
        .gtoc-link.current {
            background: rgba(0, 225, 255, .08);
            border-color: rgba(0, 225, 255, .2);
            color: var(--cyber);
        }
        .gtoc-link:hover i,
        .gtoc-link.current i {
            color: var(--cyber);
        }
        .toc-note {
            margin-top: 18px;
            padding-top: 16px;
            border-top: 1px dashed rgba(255, 255, 255, .14);
            color: var(--text-mute);
            font-size: 13px;
        }
        .toc-note b {
            color: var(--text-soft);
            font-weight: 700;
        }

        .guide-content {
            display: flex;
            flex-direction: column;
            gap: 46px;
        }
        .guide-head {
            padding: 8px 0 4px;
        }
        .guide-kicker {
            color: var(--cyber);
            letter-spacing: .06em;
            font-size: 14px;
            font-weight: 700;
            text-transform: uppercase;
        }
        .guide-head h2 {
            font-size: clamp(1.7rem, 3vw, 2.4rem);
            line-height: 1.35;
            font-weight: 800;
            letter-spacing: -0.01em;
            margin-top: 8px;
        }
        .guide-head p {
            color: var(--text-soft);
            margin-top: 16px;
            max-width: 66ch;
            font-size: 16px;
        }
        .feature-panel {
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 28px;
            align-items: center;
            background: rgba(255, 255, 255, .045);
            border: 1px solid rgba(255, 255, 255, .09);
            border-radius: 22px;
            padding: 22px;
            overflow: hidden;
        }
        .feature-copy h3 {
            font-size: 22px;
            font-weight: 800;
        }
        .feature-copy p {
            color: var(--text-soft);
            font-size: 15px;
            margin-top: 12px;
        }
        .cover-wrap {
            position: relative;
            border-radius: 16px;
            overflow: hidden;
            min-height: 210px;
            background: linear-gradient(135deg, rgba(0, 225, 255, .18), rgba(108, 59, 255, .2));
            border: 1px solid rgba(255, 255, 255, .1);
        }
        .cover-wrap img {
            width: 100%;
            height: 100%;
            min-height: inherit;
            object-fit: cover;
        }
        .check-list {
            margin-top: 18px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            list-style: none;
        }
        .check-list li {
            display: flex;
            gap: 8px;
            font-size: 14px;
            color: var(--text-main);
            padding: 12px 14px;
            background: rgba(255, 255, 255, .045);
            border: 1px solid rgba(255, 255, 255, .07);
            border-radius: 12px;
        }
        .check-list li svg {
            color: var(--cyber);
            flex-shrink: 0;
            margin-top: 5px;
        }

        .code-step {
            position: relative;
            padding: 26px;
            border-radius: 20px;
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .09);
            transition: border-color .3s, box-shadow .3s, transform .3s;
        }
        .code-step:hover {
            border-color: rgba(0, 225, 255, .35);
            box-shadow: 0 18px 36px rgba(0, 0, 0, .16), 0 0 24px rgba(0, 225, 255, .1);
            transform: translateY(-2px);
        }
        .step-index {
            font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
            color: var(--cyber);
            font-size: 13px;
            letter-spacing: .1em;
            font-weight: 700;
        }
        .code-step h3 {
            font-size: 24px;
            font-weight: 800;
            margin-top: 6px;
            line-height: 1.4;
        }
        .code-step>p {
            color: var(--text-soft);
            margin-top: 12px;
            max-width: 78ch;
        }
        .mini-grid {
            margin-top: 22px;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 14px;
        }
        .mini-item {
            padding: 20px 16px;
            background: rgba(255, 255, 255, .045);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: 16px;
            font-size: 15px;
        }
        .mini-item b {
            display: block;
            color: var(--text-main);
            font-size: 16px;
            margin-bottom: 8px;
            padding-bottom: 8px;
            border-bottom: 1px solid rgba(255, 255, 255, .1);
        }
        .mini-item span {
            color: var(--text-soft);
            font-size: 14px;
        }
        .rules-list {
            margin-top: 22px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .rule-row {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .07);
            border-radius: 16px;
            padding: 16px 18px;
        }
        .rule-row p {
            color: var(--text-soft);
            font-size: 15px;
            line-height: 1.8;
        }
        .rule-row strong {
            color: var(--text-main);
        }
        .rule-row time,
        .rule-row .date {
            color: var(--text-mute);
            white-space: nowrap;
            font-variant-numeric: tabular-nums;
            font-size: 14px;
        }

        .faq-panel {
            padding: 80px 0 70px;
            background: var(--abyss);
            border-top: 1px solid rgba(255, 255, 255, .05);
        }
        .faq-panel .container {
            max-width: 1160px
        }
        .section-badge {
            display: inline-flex;
            align-items: center;
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 13px;
            background: rgba(0, 225, 255, .1);
            border: 1px solid rgba(0, 225, 255, .25);
            color: var(--cyber);
            margin-bottom: 14px;
        }
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
            margin-top: 36px;
        }
        .faq-item {
            background: rgba(255, 255, 255, .045);
            border: 1px solid rgba(255, 255, 255, .09);
            border-radius: 16px;
            overflow: hidden;
            transition: border-color .3s, background .3s;
        }
        .faq-item:hover {
            border-color: rgba(0, 225, 255, .3);
            background: rgba(255, 255, 255, .06);
        }
        .faq-item summary {
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 18px;
            padding: 20px 22px;
            color: var(--text-main);
            font-weight: 700;
            cursor: pointer;
            font-size: 16px;
            line-height: 1.5;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-icon {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            color: var(--cyber);
            border: 1px solid rgba(0, 225, 255, .3);
            background: rgba(0, 225, 255, .08);
            transition: transform .3s;
        }
        .faq-item[open] .faq-icon {
            transform: rotate(45deg);
            background: var(--cyber);
            color: #001;
        }
        .faq-answer {
            padding: 0 22px 22px;
            color: var(--text-soft);
            font-size: 15px;
            line-height: 1.9;
            border-top: 1px dashed rgba(255, 255, 255, .1);
            margin: 0 22px;
            padding-left: 0;
            padding-right: 0;
        }
        .faq-answer p {
            padding-top: 16px;
        }

        .cta-section {
            padding: 68px 0 80px;
            background: linear-gradient(180deg, var(--abyss), var(--deep));
        }
        .cta-panel {
            border-radius: 26px;
            overflow: hidden;
            display: grid;
            grid-template-columns: 1.2fr .9fr;
            gap: 34px;
            align-items: center;
            padding: 44px 48px;
            background:
                radial-gradient(circle at 20% 30%, rgba(0, 225, 255, .2), transparent 30%),
                radial-gradient(circle at 90% 80%, rgba(108, 59, 255, .25), transparent 32%),
                rgba(255, 255, 255, .05);
            border: 1px solid rgba(0, 225, 255, .28);
            box-shadow: 0 30px 80px rgba(0, 0, 0, .3), inset 0 0 0 1px rgba(255, 255, 255, .03);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }
        .cta-panel h2 {
            font-size: clamp(1.8rem, 3.4vw, 2.7rem);
            font-weight: 900;
            letter-spacing: -0.02em;
            line-height: 1.35;
            margin-top: 12px;
        }
        .cta-panel p {
            color: var(--text-soft);
            margin-top: 14px;
            max-width: 56ch;
        }
        .join-form {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 28px;
        }
        .join-input {
            flex: 1 1 220px;
            height: 50px;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, .18);
            background: rgba(7, 12, 23, .8);
            padding: 0 18px;
            color: var(--text-main);
            transition: border-color .25s, box-shadow .25s;
        }
        .join-input::placeholder {
            color: var(--text-mute);
        }
        .join-input:focus {
            border-color: var(--cyber);
            box-shadow: 0 0 0 3px rgba(0, 225, 255, .2);
        }
        .form-note {
            font-size: 13px;
            color: var(--text-mute);
            margin-top: 12px;
            width: 100%;
        }

        .site-footer {
            background: #050A12;
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 52px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 44px;
        }
        .footer-brand p {
            color: var(--text-mute);
            margin-top: 16px;
            line-height: 1.9;
        }
        .footer-title {
            color: var(--text-main);
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: .04em;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--text-soft);
            padding: 4px 0;
            width: fit-content;
            border-bottom: 1px solid transparent;
        }
        .footer-links a:hover {
            color: var(--cyber);
            border-bottom-color: rgba(0, 225, 255, .5);
        }
        .footer-bottom {
            margin-top: 34px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, .09);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            color: var(--text-mute);
            font-size: 14px;
        }
        .footer-tech {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }

        .mobile-menu {
            display: none;
            position: fixed;
            inset: 0;
            z-index: 100;
            background: rgba(7, 12, 23, .92);
            backdrop-filter: blur(22px);
            -webkit-backdrop-filter: blur(22px);
            padding: 30px 26px;
            flex-direction: column;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu-inner {
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .mobile-close {
            align-self: flex-end;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 14px;
            border: 1px solid rgba(255, 255, 255, .15);
            color: var(--text-main);
            font-size: 28px;
        }
        .mobile-menu .nav-links {
            margin-top: 36px;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .mobile-menu .nav-link {
            min-height: 56px;
            padding: 0 8px;
            font-size: 22px;
            font-weight: 700;
            border-radius: 16px;
            color: var(--text-main);
        }
        .mobile-menu .nav-link.active {
            color: var(--cyber);
            background: rgba(0, 225, 255, .08);
        }
        .mobile-menu .nav-link.active::after {
            content: none;
        }

        @media (max-width: 1000px) {
            .hero-wrap {
                grid-template-columns: 1fr;
            }
            .hero-card {
                max-width: 520px;
            }
            .feature-panel,
            .cta-panel {
                grid-template-columns: 1fr;
            }
            .mini-grid {
                grid-template-columns: 1fr 1fr;
            }
            .gtoc-link {
                white-space: nowrap;
            }
            .guide-layout {
                grid-template-columns: 1fr;
            }
            .guide-toc {
                position: relative;
                top: auto;
                display: flex;
                flex-wrap: wrap;
                align-items: center;
                gap: 18px;
                padding: 18px;
            }
            .guide-toc .toc-title {
                width: auto;
                margin-bottom: 0;
            }
            .gtoc-list {
                flex-direction: row;
                flex-wrap: wrap;
                gap: 2px;
                flex: 1;
            }
            .toc-note {
                display: none;
            }
        }

        @media (max-width: 760px) {
            body {
                font-size: 15px;
            }
            .site-header {
                height: 56px;
            }
            .header-inner {
                height: 56px;
                width: min(100% - 28px, 1200px);
                gap: 10px;
            }
            .brand-name {
                font-size: 17px;
            }
            .brand-mark {
                width: 34px;
                height: 34px;
            }
            .main-nav,
            .desktop-header-cta {
                display: none;
            }
            .menu-btn {
                display: inline-flex;
                align-items: center;
                justify-content: center;
                width: 42px;
                height: 42px;
                border-radius: 12px;
                color: var(--text-main);
                border: 1px solid rgba(255, 255, 255, .12);
                background: rgba(255, 255, 255, .05);
            }
            .page-hero {
                padding-top: 42px;
                padding-bottom: 24px;
            }
            .breadcrumb {
                font-size: 13px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .hero-tags {
                gap: 8px;
            }
            .hero-card {
                padding: 20px;
            }
            .guide-section {
                padding: 38px 0 48px;
            }
            .guide-content {
                gap: 32px;
            }
            .faq-grid {
                grid-template-columns: 1fr;
            }
            .faq-panel {
                padding: 54px 0 44px;
            }
            .cta-panel {
                padding: 30px 24px;
            }
            .cta-section {
                padding: 48px 0 54px;
            }
            .join-form {
                flex-direction: column;
            }
            .join-input,
            .join-form .btn {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .check-list {
                grid-template-columns: 1fr;
            }
            .mini-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 520px) {
            .brand-name small {
                display: none;
            }
            .feature-panel,
            .code-step {
                padding: 18px;
            }
            .faq-item summary {
                font-size: 15px;
                padding: 18px;
            }
            .faq-answer {
                font-size: 14px;
            }
            .rule-row {
                flex-direction: column;
                gap: 4px;
            }
            .hero-tag {
                font-size: 12px;
            }
        }