/* roulang page: index */
:root {
            --night-bg: #080C14;
            --night-soft: #0B101B;
            --panel: #111827;
            --panel-2: #131C2E;
            --panel-3: #1A2438;
            --signal: #12D8C8;
            --signal-hover: #0EA89C;
            --signal-press: #0B857C;
            --beacon: #F5A524;
            --green: #34D399;
            --red: #F87171;
            --title-color: #F9FAFB;
            --body-color: #C7D2E5;
            --muted: #93A0B4;
            --weak: #67738C;
            --glass-stroke: rgba(255, 255, 255, 0.08);
            --card-radius: 16px;
            --btn-radius: 999px;
            --shadow-soft: 0 18px 36px -22px rgba(0, 0, 0, 0.6);
            --font-family: Inter, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
            --font-head: "Inter", "PingFang SC", "Microsoft YaHei", sans-serif;
        }
        *, *::before, *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            padding: 0;
            background: var(--night-bg);
            background-image: radial-gradient(ellipse 70% 40% at 50% -5%, rgba(18, 216, 200, 0.08), rgba(8, 12, 20, 0) 70%);
            color: var(--body-color);
            font-family: var(--font-family);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            display: inline-block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: all .25s ease;
        }
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--signal);
            outline-offset: 3px;
        }
        p,
        ul,
        ol,
        figure {
            margin: 0 0 1rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
            width: 100%;
        }

        /* ========== Buttons ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1;
            padding: 14px 26px;
            border-radius: var(--btn-radius);
            border: 1px solid transparent;
            cursor: pointer;
            text-decoration: none;
            transition: all .25s ease;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--signal);
            color: #071019;
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--signal-hover);
            color: #071019;
            box-shadow: 0 0 30px rgba(18, 216, 200, 0.3), 0 12px 26px -18px rgba(18, 216, 200, 0.5);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            background: var(--signal-press);
            transform: translateY(0);
        }
        .btn-secondary {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: var(--title-color);
            backdrop-filter: blur(6px);
        }
        .btn-secondary:hover {
            border-color: var(--signal);
            color: var(--signal);
            background: rgba(18, 216, 200, 0.06);
            box-shadow: 0 10px 24px -16px rgba(18, 216, 200, 0.5);
        }
        .btn-beacon {
            background: var(--beacon);
            color: #111111;
        }
        .btn-beacon:hover {
            background: #FFBE52;
            color: #111111;
            box-shadow: 0 0 28px rgba(245, 165, 36, 0.32);
            transform: translateY(-2px);
        }
        .btn-lg {
            padding: 16px 32px;
            font-size: 16px;
        }
        .btn-sm {
            padding: 10px 18px;
            font-size: 14px;
        }
        .btn-block {
            width: 100%;
        }

        /* ========== Navbar ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 990;
            background: rgba(11, 17, 32, 0.72);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid transparent;
            transition: background .35s ease, border-color .35s ease, box-shadow .35s ease;
        }
        .site-header.scrolled {
            background: rgba(11, 17, 32, 0.96);
            border-bottom-color: rgba(255, 255, 255, 0.06);
            box-shadow: 0 12px 32px -22px rgba(0, 0, 0, 0.75);
        }
        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 16px;
            flex-wrap: wrap;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 21px;
            color: var(--title-color);
            letter-spacing: -0.02em;
            flex-shrink: 0;
        }
        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: rgba(18, 216, 200, 0.14);
            border: 1px solid rgba(18, 216, 200, 0.32);
            color: var(--signal);
            font-size: 20px;
            font-weight: 900;
            box-shadow: 0 0 22px rgba(18, 216, 200, 0.16);
        }
        .logo:hover .logo-mark {
            box-shadow: 0 0 30px rgba(18, 216, 200, 0.4);
        }
        .nav-links {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
            align-items: center;
            gap: 4px;
        }
        .nav-links .nav-link {
            position: relative;
            display: block;
            padding: 10px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--body-color);
            border-radius: 999px;
        }
        .nav-links .nav-link::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            border-radius: 2px;
            background: var(--signal);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform .3s ease;
        }
        .nav-links .nav-link:hover {
            color: var(--title-color);
        }
        .nav-links .nav-link:hover::after,
        .nav-links a.active::after {
            transform: scaleX(1);
        }
        .nav-links a.active {
            color: var(--title-color);
        }
        .nav-tools {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 999px;
            height: 40px;
            padding: 0 4px 0 14px;
            transition: all .3s ease;
            width: 190px;
        }
        .nav-search input {
            border: none;
            background: transparent;
            outline: none;
            color: var(--title-color);
            font-size: 14px;
            width: 100%;
            font-family: var(--font-family);
        }
        .nav-search input::placeholder {
            color: var(--weak);
        }
        .nav-search button {
            border: none;
            background: transparent;
            color: var(--weak);
            cursor: pointer;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: all .25s ease;
        }
        .nav-search button:hover {
            color: var(--signal);
        }
        .nav-login {
            padding: 9px 14px;
            color: var(--body-color);
            font-size: 14px;
            font-weight: 500;
            border-radius: 999px;
        }
        .nav-login:hover {
            color: var(--signal);
            background: rgba(18, 216, 200, 0.06);
        }
        .nav-cta {
            padding: 11px 22px;
            font-size: 14px;
        }
        .hamburger {
            display: none;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.1);
            width: 44px;
            height: 44px;
            border-radius: 12px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            transition: all .25s ease;
        }
        .hamburger:hover {
            border-color: var(--signal);
        }
        .hamburger span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--title-color);
            border-radius: 3px;
            transition: all .3s ease;
        }
        .hamburger.is-open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.is-open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.is-open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            min-height: 94vh;
            display: flex;
            align-items: center;
            padding: 130px 0 80px;
            background-image: linear-gradient(90deg, rgba(8, 12, 20, 0.96) 0%, rgba(8, 12, 20, 0.82) 45%, rgba(8, 12, 20, 0.54) 100%),
                url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
        }
        .hero-inner {
            display: flex;
            align-items: center;
            gap: 40px;
        }
        .hero-content {
            max-width: 780px;
        }
        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(18, 216, 200, 0.1);
            border: 1px solid rgba(18, 216, 200, 0.25);
            color: var(--signal);
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.1em;
            margin-bottom: 24px;
        }
        .hero h1 {
            font-family: var(--font-head);
            font-size: clamp(32px, 4.4vw, 58px);
            line-height: 1.15;
            letter-spacing: -0.03em;
            color: var(--title-color);
            margin: 0 0 22px;
            font-weight: 700;
            max-width: 12em;
        }
        .hero-sub {
            font-size: 17px;
            line-height: 1.95;
            color: var(--body-color);
            max-width: 60ch;
            margin-bottom: 36px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 48px;
        }
        .trust-pill {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 999px;
            padding: 8px 16px;
            font-size: 13px;
            color: var(--muted);
        }
        .trust-pill i {
            color: var(--signal);
        }

        /* ========== section utilities ========== */
        .section {
            padding: 90px 0;
        }
        .section-sm {
            padding: 60px 0;
        }
        .section-head {
            max-width: 760px;
            margin-bottom: 44px;
        }
        .section-head.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }
        .section-kicker {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.14em;
            text-transform: uppercase;
            color: var(--signal);
            margin-bottom: 12px;
        }
        .section-head h2 {
            font-family: var(--font-head);
            font-size: clamp(24px, 3vw, 38px);
            color: var(--title-color);
            line-height: 1.3;
            font-weight: 700;
            margin: 0 0 14px;
            letter-spacing: -0.02em;
        }
        .section-head p {
            color: var(--muted);
            font-size: 16px;
            line-height: 1.9;
        }
        .section-divider {
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
            max-width: 1200px;
            margin: 0 auto;
        }

        /* ========== Feature strip ========== */
        .feature-strip {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            background: rgba(9, 13, 22, 0.7);
            padding: 42px 0;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }
        .feature-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
        }
        .feature-icon {
            width: 42px;
            height: 42px;
            flex: 0 0 42px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(18, 216, 200, 0.14);
            border: 1px solid rgba(18, 216, 200, 0.18);
            color: var(--signal);
            font-size: 17px;
        }
        .feature-item h3 {
            font-size: 16px;
            color: var(--title-color);
            font-weight: 600;
            margin: 0 0 4px;
            font-family: var(--font-head);
        }
        .feature-item p {
            margin: 0;
            font-size: 14px;
            color: var(--muted);
            line-height: 1.65;
        }

        /* ========== Card styles ========== */
        .card {
            background: linear-gradient(145deg, rgba(19, 28, 46, 0.82), rgba(17, 24, 39, 0.96));
            border: 1px solid var(--glass-stroke);
            border-radius: var(--card-radius);
            overflow: hidden;
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
            position: relative;
        }
        .card:hover {
            transform: translateY(-4px);
            border-color: rgba(18, 216, 200, 0.2);
            box-shadow: var(--shadow-soft);
        }
        .card-media {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/10;
            background: var(--panel);
        }
        .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .card:hover .card-media img {
            transform: scale(1.03);
        }
        .card-content {
            padding: 26px 24px 24px;
        }
        .card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--signal);
            background: rgba(18, 216, 200, 0.1);
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }
        .card-content h3 {
            font-size: 19px;
            color: var(--title-color);
            font-family: var(--font-head);
            font-weight: 700;
            margin: 0 0 10px;
            line-height: 1.45;
        }
        .card-content p {
            font-size: 15px;
            color: var(--body-color);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .card-link {
            color: var(--signal);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .card-link i {
            transition: transform .3s ease;
        }
        .card-link:hover {
            color: var(--title-color);
        }
        .card-link:hover i {
            transform: translateX(5px);
        }

        /* ========== Services ========== */
        .services-grid {
            display: grid;
            grid-template-columns: 1.35fr 0.9fr;
            gap: 24px;
            align-items: stretch;
        }
        .services-grid .card:first-child {
            background: linear-gradient(135deg, rgba(19, 28, 46, 0.92), rgba(10, 15, 26, 0.95));
        }
        .service-mini-list {
            display: flex;
            flex-direction: column;
        }
        .service-mini-item {
            display: flex;
            gap: 12px;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .service-mini-item:last-child {
            border-bottom: none;
        }
        .service-mini-item .nm {
            width: 26px;
            height: 26px;
            flex: 0 0 26px;
            border-radius: 8px;
            background: rgba(18, 216, 200, 0.12);
            color: var(--signal);
            font-size: 12px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .service-mini-item .info h4 {
            margin: 0;
            font-size: 14px;
            font-weight: 600;
            color: var(--title-color);
        }
        .service-mini-item .info span {
            font-size: 13px;
            color: var(--muted);
        }
        .card-note {
            background: linear-gradient(135deg, rgba(245, 165, 36, 0.06), rgba(17, 24, 39, 0.8));
            border: 1px solid rgba(245, 165, 36, 0.2);
        }
        .card-note .beacon-note {
            color: var(--beacon);
        }
        .card-note h3 {
            color: var(--title-color);
        }

        /* ========== Showcase ========== */
        .showcase {
            background-image: linear-gradient(90deg, rgba(8, 12, 20, 0.95) 0%, rgba(8, 12, 20, 0.88) 100%), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }
        .showcase-flex {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .showcase-visual {
            position: relative;
            border-radius: 24px;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 30px 60px -25px rgba(0, 0, 0, 0.7);
        }
        .showcase-visual img {
            width: 100%;
            display: block;
        }
        .showcase-content h2 {
            font-size: clamp(24px, 2.4vw, 34px);
            color: var(--title-color);
            font-weight: 700;
            line-height: 1.3;
            margin: 10px 0 16px;
        }
        .showcase-content p {
            color: var(--body-color);
            margin-bottom: 16px;
            line-height: 1.85;
        }
        .check-list {
            list-style: none;
            margin: 0 0 18px;
            padding: 0;
        }
        .check-list li {
            display: flex;
            gap: 10px;
            align-items: flex-start;
            margin-bottom: 12px;
            color: var(--body-color);
            font-size: 15px;
        }
        .check-list li i {
            color: var(--signal);
            margin-top: 5px;
            font-size: 13px;
        }

        /* ========== News ========== */
        .news-list-wrap {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 24px;
        }
        .news-feature-card {
            display: flex;
            flex-direction: column;
            padding: 34px;
            background: linear-gradient(135deg, rgba(19, 28, 46, 0.92), rgba(11, 16, 27, 0.95));
            border: 1px solid var(--glass-stroke);
            border-radius: 20px;
            transition: all .3s ease;
            position: relative;
        }
        .news-feature-card:hover {
            border-color: rgba(18, 216, 200, 0.25);
            transform: translateY(-3px);
            box-shadow: var(--shadow-soft);
        }
        .news-feature-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            background: rgba(18, 216, 200, 0.1);
            color: var(--signal);
            border-radius: 999px;
            padding: 4px 12px;
            font-weight: 600;
            align-self: flex-start;
            margin-bottom: 16px;
        }
        .news-feature-card h3 {
            font-size: 22px;
            line-height: 1.5;
            color: var(--title-color);
            font-weight: 700;
            margin: 12px 0 12px;
        }
        .news-feature-card p {
            color: var(--body-color);
            margin-bottom: 24px;
            line-height: 1.85;
            font-size: 15px;
        }
        .news-feature-footer {
            margin-top: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .news-date {
            font-size: 13px;
            color: var(--weak);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .news-right-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            border: 1px solid var(--glass-stroke);
            background: rgba(17, 24, 39, 0.7);
            border-radius: 20px;
            padding: 8px 12px;
        }
        .news-list-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 10px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            text-decoration: none;
            transition: all .2s ease;
        }
        .news-list-item:last-child {
            border: none;
        }
        .news-list-item:hover {
            background: rgba(255, 255, 255, 0.02);
            border-radius: 10px;
            padding-left: 14px;
        }
        .news-list-item .date-badge {
            flex: 0 0 48px;
            text-align: center;
            border-radius: 10px;
            padding: 6px 0;
            background: rgba(255, 255, 255, 0.03);
            font-size: 15px;
            font-weight: 700;
            color: var(--title-color);
            line-height: 1.2;
        }
        .news-list-item .date-badge small {
            display: block;
            font-size: 11px;
            color: var(--weak);
            font-weight: 400;
        }
        .news-list-item .text {
            flex: 1;
            min-width: 0;
        }
        .news-list-item .text h4 {
            font-size: 15px;
            color: var(--title-color);
            font-weight: 600;
            margin: 0 0 4px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .news-list-item .text span {
            font-size: 13px;
            color: var(--muted);
            display: block;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .news-more-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--signal);
            font-weight: 500;
            font-size: 14px;
        }
        .news-more-link:hover {
            color: var(--title-color);
        }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 50px 20px;
            background: rgba(17, 24, 39, 0.8);
            border-radius: 20px;
            color: var(--muted);
            border: 1px solid var(--glass-stroke);
        }

        /* ========== Process / Timeline ========== */
        .process-wrap {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 30px;
        }
        .process-step {
            position: relative;
            padding: 28px 22px;
            background: linear-gradient(145deg, rgba(19, 28, 46, 0.65), rgba(17, 24, 39, 0.95));
            border: 1px solid var(--glass-stroke);
            border-radius: var(--card-radius);
            transition: all .25s ease;
        }
        .process-step:hover {
            border-color: rgba(18, 216, 200, 0.24);
            transform: translateY(-3px);
        }
        .process-step .step-num {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: rgba(18, 216, 200, 0.18);
            color: var(--signal);
            font-weight: 700;
            font-size: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
        }
        .process-step h3 {
            font-size: 16px;
            color: var(--title-color);
            font-weight: 700;
            margin-bottom: 8px;
        }
        .process-step p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== CTA band ========== */
        .cta-band {
            background-image: linear-gradient(120deg, rgba(8, 12, 20, 0.97) 0%, rgba(8, 12, 20, 0.78) 100%), url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            padding: 100px 0;
            text-align: center;
        }
        .cta-band h2 {
            font-size: clamp(26px, 3vw, 40px);
            color: var(--title-color);
            font-weight: 700;
            margin: 0 0 18px;
        }
        .cta-band p {
            max-width: 620px;
            margin: 0 auto 28px;
            font-size: 16px;
            color: var(--body-color);
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ========== FAQ ========== */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            margin-bottom: 12px;
            border: 1px solid var(--glass-stroke);
            border-radius: 16px;
            background: rgba(17, 24, 39, 0.72);
            transition: border-color .25s ease;
            overflow: hidden;
        }
        .faq-item.open {
            border-color: rgba(18, 216, 200, 0.36);
        }
        .faq-q {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 20px 24px;
            background: transparent;
            border: none;
            color: var(--title-color);
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            cursor: pointer;
            font-family: var(--font-family);
            text-align: left;
        }
        .faq-q .fa-plus {
            color: var(--signal);
            transition: transform .3s ease;
            flex: 0 0 16px;
        }
        .faq-item.open .fa-plus {
            transform: rotate(135deg);
        }
        .faq-a {
            max-height: 0;
            padding: 0 24px;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.85;
            overflow: hidden;
            transition: max-height .35s ease, padding .3s ease;
        }
        .faq-item.open .faq-a {
            max-height: 240px;
            padding-bottom: 22px;
        }

        /* ========== Disclaimer / Notice ========== */
        .notice-band {
            border: 1px solid rgba(245, 165, 36, 0.16);
            background: rgba(245, 165, 36, 0.03);
            border-radius: 16px;
            padding: 26px 28px;
            line-height: 1.75;
            color: var(--muted);
            font-size: 14px;
        }
        .notice-band i {
            color: var(--beacon);
            margin-right: 6px;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: rgba(8, 12, 20, 0.96);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 70px;
            padding-bottom: 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.9fr 1fr;
            gap: 44px;
            margin-bottom: 50px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--muted);
            margin: 14px 0 0;
            line-height: 1.8;
            max-width: 300px;
        }
        .footer-title {
            font-size: 13px;
            font-weight: 700;
            color: var(--title-color);
            margin-bottom: 20px;
            letter-spacing: .06em;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: var(--muted);
            font-size: 14px;
            transition: all .25s ease;
        }
        .footer-links a:hover {
            color: var(--signal);
            padding-left: 4px;
        }
        .footer-bottom {
            padding-top: 26px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            color: var(--weak);
            font-size: 13px;
        }
        .footer-bottom a {
            color: var(--weak);
        }
        .footer-bottom a:hover {
            color: var(--signal);
        }

        /* ========== Back to top ========== */
        .back-top {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 800;
            background: rgba(18, 216, 200, 0.9);
            color: #001511;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 20px rgba(18, 216, 200, 0.35);
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all .3s ease;
            cursor: pointer;
        }
        .back-top.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .back-top:hover {
            background: #fff;
        }

        /* ========== Responsive ========== */
        @media screen and (max-width: 1024px) {
            .section {
                padding: 70px 0;
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .services-grid {
                grid-template-columns: 1fr;
            }
            .showcase-flex {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .process-wrap {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-list-wrap {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .navbar {
                min-height: 64px;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: rgba(11, 17, 32, 0.98);
                border-bottom: 1px solid var(--glass-stroke);
                padding: 12px 20px 16px;
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links .nav-link {
                width: 100%;
                border-radius: 10px;
            }
            .nav-links .nav-link::after {
                display: none;
            }
            .nav-search {
                width: 100%;
            }
            .nav-right-mobile-row {
                display: flex;
                align-items: center;
                gap: 8px;
            }
            .hamburger {
                display: inline-flex;
            }
        }
        @media screen and (max-width: 640px) {
            .hero {
                padding: 110px 0 60px;
            }
            .container {
                padding-left: 18px;
                padding-right: 18px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .nav-search {
                width: 120px;
            }
            .nav-login {
                display: none;
            }
            .news-feature-card {
                padding: 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .process-wrap {
                grid-template-columns: 1fr;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .btn-lg {
                padding: 14px 24px;
            }
        }
        @media screen and (max-width: 520px) {
            .navbar {
                flex-wrap: nowrap;
            }
            .logo-text {
                font-size: 18px;
            }
            .nav-cta {
                padding: 10px 14px;
                font-size: 13px;
            }
            .nav-right-mobile-row {
                gap: 4px;
            }
            .nav-search {
                width: 40px;
                padding: 0;
                justify-content: center;
                border: none;
                background: transparent;
            }
            .nav-search input {
                display: none;
            }
            .nav-search button {
                width: 40px;
                height: 40px;
                border: 1px solid rgba(255, 255, 255, 0.08);
                background: rgba(255, 255, 255, 0.02);
            }
        }

/* roulang page: category1 */
:root {
            --night-bg: #080C14;
            --panel: #111827;
            --panel-soft: #131C2E;
            --signal: #12D8C8;
            --signal-hover: #0EA89C;
            --signal-active: #0B857C;
            --beacon: #F5A524;
            --positive: #34D399;
            --text-hi: #F9FAFB;
            --text-body: #C7D2E5;
            --text-dim: #93A0B4;
            --text-faint: #67738C;
            --glass-stroke: rgba(255, 255, 255, 0.08);
            --input-bg: #151C2E;
            --error: #F87171;
            --radius-card: 14px;
            --radius-btn: 999px;
            --shadow-card: 0 22px 45px -28px rgba(0, 0, 0, 0.75);
            --font-main: "Inter", "system-ui", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-main);
            background: var(--night-bg);
            color: var(--text-body);
            font-size: 16px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        body::before {
            content: "";
            position: fixed;
            top: 0;
            left: 0;
            z-index: 0;
            width: 100%;
            height: 820px;
            pointer-events: none;
            background:
                radial-gradient(circle at 50% -10%, rgba(18, 216, 200, 0.14), transparent 56%),
                radial-gradient(circle at 88% 12%, rgba(245, 165, 36, 0.05), transparent 38%);
        }

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

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

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

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

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

        button {
            border: 0;
            padding: 0;
            background: transparent;
            cursor: pointer;
        }

        :focus-visible {
            outline: 3px solid rgba(18, 216, 200, 0.35);
            outline-offset: 2px;
        }

        .container {
            position: relative;
            z-index: 1;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 13px 28px;
            border: 1px solid transparent;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.2;
            white-space: nowrap;
            transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
        }

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

        .btn-primary {
            background: var(--signal);
            color: #0B0F17;
        }

        .btn-primary:hover {
            background: var(--signal-hover);
            transform: translateY(-2px);
            box-shadow: 0 0 32px rgba(18, 216, 200, 0.35);
        }

        .btn-primary:active {
            background: var(--signal-active);
        }

        .btn-outline {
            border-color: rgba(255, 255, 255, 0.18);
            color: var(--text-hi);
            background: rgba(255, 255, 255, 0.02);
        }

        .btn-outline:hover {
            border-color: rgba(18, 216, 200, 0.75);
            color: var(--signal);
            transform: translateY(-2px);
        }

        .btn-beacon {
            background: var(--beacon);
            color: #1A1206;
        }

        .btn-beacon:hover {
            box-shadow: 0 0 28px rgba(245, 165, 36, 0.28);
            transform: translateY(-2px);
            color: #1A1206;
        }

        .section {
            padding: 84px 0;
            position: relative;
            z-index: 1;
        }

        .section-heading {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 32px;
            margin-bottom: 48px;
        }

        .section-heading .section-kicker {
            margin-bottom: 10px;
        }

        .section-heading h2 {
            font-size: clamp(25px, 3vw, 38px);
            line-height: 1.25;
            color: var(--text-hi);
            font-weight: 700;
            letter-spacing: -0.01em;
        }

        .section-intro {
            max-width: 500px;
            color: var(--text-dim);
            font-size: 16px;
            line-height: 1.8;
        }

        .section-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--signal);
            font-weight: 700;
        }

        .section-kicker i {
            font-size: 14px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(11, 17, 32, 0.72);
            -webkit-backdrop-filter: blur(20px);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid transparent;
            transition: background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
        }

        .site-header.scrolled {
            background: rgba(11, 17, 32, 0.96);
            border-bottom-color: rgba(255, 255, 255, 0.06);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
        }

        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 20px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 11px;
            flex-shrink: 0;
        }

        .logo-mark {
            width: 37px;
            height: 37px;
            display: inline-grid;
            place-items: center;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--signal), #0e9a94);
            box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1), 0 0 22px rgba(18, 216, 200, 0.25);
            color: #080c14;
            font-size: 20px;
            font-weight: 800;
            line-height: 1;
        }

        .logo-text {
            color: var(--text-hi);
            font-size: 20px;
            font-weight: 800;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 30px;
        }

        .nav-links .nav-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 2px;
            color: var(--text-dim);
            font-size: 15px;
            font-weight: 500;
            transition: color 0.2s ease;
        }

        .nav-links .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 2px;
            background: var(--signal);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: center;
            transition: transform 0.25s ease;
        }

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

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

        .nav-links .nav-link.active {
            color: var(--text-hi);
            font-weight: 700;
        }

        .nav-tools {
            display: flex;
            align-items: center;
            justify-content: flex-end;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-search {
            display: inline-flex;
            align-items: center;
            gap: 2px;
            height: 38px;
            padding: 0 6px 0 14px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 999px;
            transition: border-color 0.2s ease, width 0.25s ease;
        }

        .nav-search:focus-within {
            border-color: rgba(18, 216, 200, 0.55);
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-search input {
            border: 0;
            background: transparent;
            padding: 0 4px;
            width: 112px;
            color: var(--text-hi);
            outline: none;
            font-size: 13px;
        }

        .nav-search input::placeholder {
            color: var(--text-faint);
        }

        .nav-search button {
            width: 28px;
            height: 28px;
            display: grid;
            place-items: center;
            color: var(--text-faint);
            border-radius: 50%;
            font-size: 13px;
            transition: color 0.2s ease;
        }

        .nav-search button:hover {
            color: var(--signal);
        }

        .nav-login {
            color: var(--text-body);
            font-size: 14px;
            padding: 8px 6px;
            transition: color 0.2s ease;
        }

        .nav-login:hover {
            color: var(--signal);
        }

        .nav-cta {
            padding: 10px 22px;
            font-size: 14px;
        }

        .hamburger {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            background: rgba(255, 255, 255, 0.04);
            position: relative;
        }

        .hamburger span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--text-hi);
            margin: 3px auto;
            border-radius: 2px;
            transition: transform 0.2s ease, opacity 0.2s ease;
        }

        .hamburger[aria-expanded="true"] span:nth-child(1) {
            transform: translateY(5px) rotate(45deg);
        }

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

        .hamburger[aria-expanded="true"] span:nth-child(3) {
            transform: translateY(-5px) rotate(-45deg);
        }

        .page-hero {
            position: relative;
            z-index: 1;
            padding: 84px 0 72px;
            background:
                linear-gradient(100deg, rgba(8, 12, 20, 0.96) 20%, rgba(8, 12, 20, 0.86) 56%, rgba(17, 24, 39, 0.7) 100%),
                url('/assets/images/backpic/back-1.webp') center left / cover no-repeat;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            overflow: hidden;
        }

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

        .page-eyebrow {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 22px;
        }

        .page-eyebrow span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--signal);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.14em;
            text-transform: uppercase;
        }

        .page-eyebrow .line {
            width: 40px;
            height: 1px;
            background: linear-gradient(90deg, rgba(18, 216, 200, 0.6), transparent);
        }

        .page-hero h1 {
            font-size: clamp(34px, 4.6vw, 56px);
            line-height: 1.15;
            color: var(--text-hi);
            font-weight: 800;
            max-width: 720px;
            letter-spacing: -0.02em;
        }

        .hero-lead {
            margin-top: 20px;
            max-width: 590px;
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-body);
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 34px;
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 18px;
            margin-top: 38px;
            color: var(--text-dim);
            font-size: 13px;
        }

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

        .hero-tags i {
            color: var(--signal);
            font-size: 15px;
        }

        .hero-panel {
            position: relative;
            background: linear-gradient(145deg, rgba(19, 28, 46, 0.75), rgba(17, 24, 39, 0.92));
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 18px;
            -webkit-backdrop-filter: blur(20px);
            backdrop-filter: blur(20px);
            box-shadow: 0 30px 60px -30px rgba(0, 0, 0, 0.75);
            overflow: hidden;
            padding: 14px;
            transform: translateZ(0);
        }

        .hero-panel::before {
            content: "";
            position: absolute;
            inset: 0 auto auto 0;
            width: 190px;
            height: 190px;
            background: radial-gradient(circle, rgba(18, 216, 200, 0.18), transparent 70%);
            pointer-events: none;
        }

        .panel-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
            padding: 6px 6px 12px;
            margin-bottom: 12px;
        }

        .panel-head .title {
            display: inline-flex;
            align-items: center;
            gap: 9px;
            color: var(--text-hi);
            font-weight: 700;
            font-size: 14px;
        }

        .panel-head .title i {
            color: var(--signal);
        }

        .live-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--positive);
            border: 1px solid rgba(52, 211, 153, 0.24);
            background: rgba(52, 211, 153, 0.08);
            padding: 4px 10px;
            border-radius: 999px;
        }

        .live-badge::before {
            content: "";
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--positive);
            box-shadow: 0 0 10px rgba(52, 211, 153, 0.8);
        }

        .hero-panel-img {
            position: relative;
            overflow: hidden;
            border-radius: 13px;
        }

        .hero-panel-img img {
            width: 100%;
            aspect-ratio: 16 / 11;
            object-fit: cover;
        }

        .hero-panel-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(200deg, rgba(8, 12, 20, 0.05), rgba(8, 12, 20, 0.56));
        }

        .panel-img-note {
            position: absolute;
            left: 14px;
            bottom: 14px;
            z-index: 2;
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: rgba(10, 15, 26, 0.72);
            border: 1px solid rgba(255, 255, 255, 0.14);
            -webkit-backdrop-filter: blur(14px);
            backdrop-filter: blur(14px);
            color: var(--text-hi);
            font-size: 13px;
            border-radius: 999px;
            padding: 8px 14px;
        }

        .panel-img-note i {
            color: var(--signal);
        }

        .panel-foot {
            display: flex;
            justify-content: space-between;
            gap: 10px;
            padding: 12px 8px 2px;
        }

        .panel-foot li {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 5px;
        }

        .panel-foot li span {
            font-size: 12px;
            color: var(--text-faint);
        }

        .panel-foot li strong {
            font-size: 13px;
            color: var(--text-hi);
            font-weight: 600;
        }

        .slider-chips-nav {
            position: relative;
            z-index: 30;
            background: rgba(8, 12, 20, 0.86);
            -webkit-backdrop-filter: blur(16px);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            padding: 13px 0;
        }

        .quick-chips {
            display: flex;
            gap: 10px;
            overflow-x: auto;
            flex-wrap: nowrap;
            scrollbar-width: none;
        }

        .quick-chips::-webkit-scrollbar {
            display: none;
        }

        .quick-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 17px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 999px;
            font-size: 14px;
            color: var(--text-body);
            background: rgba(255, 255, 255, 0.03);
            white-space: nowrap;
            transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease, transform 0.2s ease;
        }

        .quick-chip i {
            color: var(--signal);
            font-size: 14px;
        }

        .quick-chip:hover {
            color: var(--text-hi);
            background: rgba(18, 216, 200, 0.08);
            border-color: rgba(18, 216, 200, 0.42);
            transform: translateY(-1px);
        }

        .quick-chip.qc-accent {
            border-color: rgba(245, 165, 36, 0.36);
            color: var(--text-hi);
            background: rgba(245, 165, 36, 0.07);
        }

        .quick-chip.qc-accent i {
            color: var(--beacon);
        }

        .quick-chip.qc-accent:hover {
            border-color: rgba(245, 165, 36, 0.7);
        }

        .service-overview {
            padding-top: 90px;
        }

        .service-split {
            row-gap: 28px;
        }

        .lead-panel {
            position: relative;
            min-height: 430px;
            border-radius: var(--radius-card);
            border: 1px solid rgba(255, 255, 255, 0.1);
            overflow: hidden;
            height: 100%;
        }

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

        .lead-panel .lead-overlay {
            position: absolute;
            inset: 0;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 32px 28px;
            background: linear-gradient(200deg, rgba(8, 12, 20, 0.08) 10%, rgba(8, 12, 20, 0.88) 86%);
        }

        .lead-overlay .section-kicker {
            margin-bottom: 10px;
        }

        .lead-overlay h3 {
            color: var(--text-hi);
            font-size: clamp(21px, 2vw, 27px);
            line-height: 1.35;
            font-weight: 700;
            max-width: 420px;
        }

        .lead-overlay p {
            margin-top: 14px;
            color: var(--text-body);
            font-size: 15px;
            line-height: 1.8;
            max-width: 480px;
        }

        .entry-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 18px;
            height: 100%;
        }

        .entry-card {
            background: linear-gradient(145deg, rgba(19, 28, 46, 0.82), rgba(17, 24, 39, 0.96));
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-card);
            padding: 26px 24px;
            position: relative;
            display: flex;
            flex-direction: column;
            transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .entry-card::before {
            content: "";
            position: absolute;
            width: 38px;
            height: 3px;
            top: 25px;
            right: 20px;
            border-radius: 4px;
            background: linear-gradient(90deg, var(--signal), transparent);
            opacity: 0.7;
        }

        .entry-card:hover {
            transform: translateY(-2px);
            border-color: rgba(18, 216, 200, 0.22);
            box-shadow: var(--shadow-card);
        }

        .entry-icon {
            width: 42px;
            height: 42px;
            display: grid;
            place-items: center;
            border-radius: 12px;
            background: rgba(18, 216, 200, 0.14);
            color: var(--signal);
            font-size: 18px;
            margin-bottom: 20px;
        }

        .entry-card h3 {
            color: var(--text-hi);
            font-size: 18px;
            font-weight: 700;
            line-height: 1.4;
        }

        .entry-card p {
            margin-top: 12px;
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-dim);
            flex: 1;
        }

        .entry-link {
            margin-top: 18px;
            display: inline-flex;
            align-items: center;
            gap: 7px;
            color: var(--signal);
            font-size: 13px;
            font-weight: 600;
            transition: gap 0.2s ease;
        }

        .entry-link:hover {
            gap: 11px;
        }

        .process-section {
            background: rgba(10, 15, 26, 0.8);
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .process-side {
            position: relative;
            min-height: 320px;
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

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

        .process-side::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(220deg, rgba(8, 12, 20, 0.08), rgba(8, 12, 20, 0.78));
        }

        .process-side-note {
            position: absolute;
            left: 14px;
            bottom: 14px;
            right: 14px;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 12px 14px;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.12);
            background: rgba(10, 15, 26, 0.74);
            color: var(--text-body);
            font-size: 13px;
        }

        .process-side-note strong {
            color: var(--text-hi);
            display: block;
            font-size: 14px;
        }

        .process-side-note i {
            color: var(--signal);
            font-size: 20px;
            flex-shrink: 0;
        }

        .timeline {
            display: flex;
            flex-direction: column;
            gap: 0;
            margin-top: 2px;
        }

        .timeline-item {
            position: relative;
            display: flex;
            gap: 20px;
            padding: 0 0 28px 0;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-dot {
            flex-shrink: 0;
            width: 42px;
            height: 42px;
            display: grid;
            place-items: center;
            border-radius: 50%;
            background: rgba(18, 216, 200, 0.1);
            border: 1px solid rgba(18, 216, 200, 0.35);
            color: var(--signal);
            font-size: 14px;
            font-weight: 800;
            z-index: 2;
            box-shadow: 0 0 0 6px rgba(18, 216, 200, 0.03);
        }

        .timeline-item:not(:last-child)::before {
            content: "";
            position: absolute;
            left: 21px;
            top: 46px;
            bottom: 0;
            width: 1px;
            background: linear-gradient(180deg, rgba(18, 216, 200, 0.25), rgba(255, 255, 255, 0.05));
        }

        .timeline-content h3 {
            color: var(--text-hi);
            font-size: 18px;
            font-weight: 700;
            line-height: 1.4;
        }

        .timeline-content p {
            margin-top: 8px;
            color: var(--text-dim);
            font-size: 14px;
            line-height: 1.8;
            max-width: 510px;
        }

        .notice-strip {
            padding: 82px 0;
        }

        .notice-card {
            display: grid;
            grid-template-columns: 1.1fr 1.6fr auto;
            align-items: center;
            gap: 34px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 20px;
            padding: 34px 36px;
            background: linear-gradient(145deg, rgba(19, 28, 46, 0.86), rgba(15, 21, 35, 0.98));
            box-shadow: 0 24px 60px -34px rgba(0, 0, 0, 0.9);
        }

        .notice-badge {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: rgba(245, 165, 36, 0.12);
            border: 1px solid rgba(245, 165, 36, 0.32);
            color: var(--beacon);
            font-size: 12px;
            padding: 6px 12px;
            border-radius: 999px;
            font-weight: 700;
            letter-spacing: 0.05em;
            margin-bottom: 12px;
        }

        .notice-card h2 {
            color: var(--text-hi);
            font-size: clamp(22px, 2.4vw, 32px);
            line-height: 1.35;
            font-weight: 700;
        }

        .notice-card h2 span {
            color: var(--signal);
        }

        .notice-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .notice-list li {
            display: flex;
            gap: 12px;
            color: var(--text-body);
            font-size: 15px;
            line-height: 1.75;
            align-items: flex-start;
        }

        .notice-list li i {
            color: var(--signal);
            margin-top: 5px;
            font-size: 16px;
            flex-shrink: 0;
        }

        .notice-actions {
            display: flex;
            flex-direction: column;
            gap: 12px;
            align-items: stretch;
        }

        .faq-section {
            padding-top: 80px;
        }

        .faq-wrap {
            max-width: 880px;
            margin: 0 auto;
        }

        .faq-list {
            margin-top: 42px;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: rgba(19, 28, 46, 0.6);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-card);
            padding: 0 24px;
            transition: border-color 0.2s ease, background 0.2s ease;
        }

        .faq-item[open] {
            border-color: rgba(18, 216, 200, 0.28);
            background: rgba(19, 28, 46, 0.9);
        }

        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 20px 0;
            cursor: pointer;
            color: var(--text-hi);
            font-weight: 600;
            font-size: 16px;
        }

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

        .faq-icon {
            flex-shrink: 0;
            width: 30px;
            height: 30px;
            display: grid;
            place-items: center;
            border-radius: 50%;
            border: 1px solid rgba(18, 216, 200, 0.4);
            color: var(--signal);
            font-weight: 700;
            font-size: 20px;
        }

        .faq-item[open] .faq-icon::before {
            content: "−";
        }

        .faq-item summary .faq-icon::before {
            content: "+";
        }

        .faq-answer {
            padding: 0 0 20px;
            color: var(--text-dim);
            line-height: 1.8;
            font-size: 15px;
            max-width: 760px;
        }

        .cta-zone {
            padding: 20px 0 90px;
        }

        .cta-panel {
            position: relative;
            border-radius: 22px;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.1);
            background:
                radial-gradient(circle at 16% 20%, rgba(18, 216, 200, 0.16), transparent 40%),
                linear-gradient(145deg, rgba(19, 28, 46, 0.92), rgba(12, 18, 29, 1));
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 40px;
            padding: 50px 48px;
            align-items: center;
        }

        .cta-kicker {
            color: var(--signal);
            font-size: 13px;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            font-weight: 600;
        }

        .cta-panel h2 {
            color: var(--text-hi);
            font-size: clamp(25px, 3vw, 38px);
            line-height: 1.3;
            margin: 14px 0 16px;
            font-weight: 700;
        }

        .cta-panel p {
            color: var(--text-dim);
            font-size: 15px;
            line-height: 1.8;
            max-width: 560px;
        }

        .cta-meta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-top: 22px;
            font-size: 13px;
            color: var(--text-faint);
        }

        .cta-meta i {
            color: var(--beacon);
        }

        .cta-card-part {
            background: rgba(8, 12, 20, 0.45);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 16px;
            padding: 28px;
        }

        .cta-card-part .mail {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
            padding-bottom: 16px;
            margin-bottom: 14px;
        }

        .cta-card-part .mail span {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--text-hi);
            font-weight: 600;
        }

        .cta-card-part .mail i {
            color: var(--signal);
        }

        .cta-card-part .mail a {
            color: var(--signal);
            font-size: 13px;
            font-weight: 600;
        }

        .cta-card-part .time {
            color: var(--text-dim);
            font-size: 13px;
            line-height: 1.7;
        }

        .cta-card-part .time strong {
            display: block;
            color: var(--text-hi);
            font-weight: 700;
            font-size: 15px;
            margin-bottom: 4px;
        }

        .site-footer {
            background: #0A0F18;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            color: var(--text-dim);
            padding: 66px 0 30px;
            position: relative;
            z-index: 1;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.35fr 0.8fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 44px;
        }

        .footer-brand .logo {
            margin-bottom: 18px;
        }

        .footer-brand p {
            color: var(--text-dim);
            font-size: 14px;
            line-height: 1.8;
            max-width: 300px;
        }

        .footer-title {
            color: var(--text-hi);
            font-weight: 700;
            font-size: 15px;
            margin-bottom: 20px;
        }

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

        .footer-links a {
            color: var(--text-dim);
            font-size: 14px;
            line-height: 1.5;
            transition: color 0.2s ease;
        }

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

        .footer-links li {
            font-size: 14px;
            line-height: 1.6;
            color: var(--text-dim);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 22px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            color: var(--text-faint);
            font-size: 13px;
        }

        .footer-bottom span:last-child {
            color: var(--text-faint);
        }

        [id] {
            scroll-margin-top: 130px;
        }

        @media (max-width: 1024px) {
            .section {
                padding: 68px 0;
            }

            .nav-search {
                display: none;
            }

            .nav-login {
                display: none;
            }

            .nav-links {
                position: absolute;
                top: calc(100% + 10px);
                left: 20px;
                right: 20px;
                display: none;
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
                background: rgba(13, 19, 31, 0.98);
                border: 1px solid rgba(255, 255, 255, 0.1);
                border-radius: 16px;
                padding: 16px;
                box-shadow: 0 24px 50px -28px rgba(0, 0, 0, 0.8);
            }

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

            .nav-links .nav-link {
                width: 100%;
                padding: 12px 6px;
                font-size: 15px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            }

            .nav-links .nav-link::after {
                display: none;
            }

            .hamburger {
                display: block;
            }

            .quick-chip {
                font-size: 13px;
            }

            .section-heading {
                flex-direction: column;
                align-items: flex-start;
                gap: 14px;
                margin-bottom: 34px;
            }

            .notice-card {
                grid-template-columns: 1fr;
                padding: 32px 30px;
            }

            .cta-panel {
                grid-template-columns: 1fr;
                padding: 38px 30px;
                gap: 28px;
            }

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

        @media (max-width: 768px) {
            .page-hero {
                padding: 68px 0 62px;
            }

            .page-hero h1 {
                font-size: clamp(32px, 7vw, 44px);
            }

            .lead-panel {
                min-height: 320px;
            }

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

            .process-section {
                padding-bottom: 58px;
            }

            .process-side {
                min-height: 260px;
            }

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

        @media (max-width: 640px) {
            .container {
                padding: 0 18px;
            }

            .section {
                padding: 56px 0;
            }

            .section-heading h2 {
                font-size: 26px;
            }

            .navbar {
                min-height: 64px;
                gap: 8px;
            }

            .logo-mark {
                width: 32px;
                height: 32px;
                font-size: 17px;
                border-radius: 9px;
            }

            .logo-text {
                font-size: 17px;
            }

            .nav-cta {
                padding: 9px 16px;
                font-size: 13px;
            }

            .hamburger {
                width: 36px;
                height: 36px;
                margin-left: 0;
            }

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

            .hero-tags {
                align-items: flex-start;
                flex-direction: column;
                gap: 8px;
            }

            .notice-card,
            .cta-panel {
                padding: 26px 20px;
                border-radius: 16px;
            }

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

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

            .faq-item,
            .faq-item[open] {
                padding: 0 16px;
            }

            .faq-item summary {
                font-size: 15px;
                align-items: flex-start;
            }

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

/* roulang page: article */
:root {
            --night-bg: #080C14;
            --night-bg-2: #0B101B;
            --surface: #111827;
            --surface-2: #131C2E;
            --signal: #12D8C8;
            --signal-hover: #0EA89C;
            --signal-active: #0B857C;
            --beacon: #F5A524;
            --positive: #34D399;
            --glass-stroke: rgba(255, 255, 255, 0.08);
            --text-high: #F9FAFB;
            --text-body: #C7D2E5;
            --text-muted: #93A0B4;
            --text-faint: #67738C;
            --radius-card: 14px;
            --radius-panel: 22px;
            --radius-btn: 999px;
            --space-section: clamp(64px, 8vw, 100px);
            --shadow-soft: 0 18px 32px -24px rgba(0, 0, 0, 0.55);
            --shadow-lift: 0 26px 44px -28px rgba(0, 0, 0, 0.7);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: 'Inter', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
            font-size: 17px;
            line-height: 1.75;
            color: var(--text-body);
            background:
                radial-gradient(circle at 18% -6%, rgba(18, 216, 200, 0.10), transparent 30%),
                linear-gradient(180deg, var(--night-bg) 0%, var(--night-bg-2) 46%, #0A0E18 100%);
            min-height: 100vh;
            text-rendering: optimizeLegibility;
            -webkit-font-smoothing: antialiased;
        }

        body.nav-locked {
            overflow: hidden;
        }

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            color: var(--text-high);
            font-weight: 700;
            line-height: 1.25;
        }

        p {
            margin: 0;
        }

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

        ul,
        ol {
            margin: 0;
            padding: 0;
        }

        li {
            list-style: none;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            color: inherit;
            background: none;
            border: none;
        }

        button {
            cursor: pointer;
        }

        .container {
            width: min(1240px, 100% - clamp(28px, 6vw, 74px));
            margin: 0 auto;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        summary:focus-visible {
            outline: 2px solid var(--signal);
            outline-offset: 3px;
        }

        ::selection {
            background: rgba(18, 216, 200, 0.28);
            color: #fff;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            height: 46px;
            padding: 0 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: background 0.25s, border-color 0.25s, box-shadow 0.25s, transform 0.25s, color 0.25s;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--signal);
            color: #071019;
            border: 1px solid rgba(18, 216, 200, 0.6);
        }

        .btn-primary:hover {
            background: var(--signal-hover);
            border-color: var(--signal-hover);
            color: #071019;
            transform: translateY(-2px);
            box-shadow: 0 0 26px rgba(18, 216, 200, 0.35);
        }

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

        .btn-secondary {
            background: rgba(255, 255, 255, 0.02);
            color: var(--text-high);
            border: 1px solid rgba(255, 255, 255, 0.12);
        }

        .btn-secondary:hover {
            border-color: var(--signal);
            color: var(--signal);
            transform: translateY(-2px);
            box-shadow: 0 0 22px rgba(18, 216, 200, 0.12);
        }

        .btn-dark {
            background: #0A0F1A;
            color: var(--text-high);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .btn-dark:hover {
            background: #101827;
            border-color: var(--signal);
            color: var(--signal);
            transform: translateY(-2px);
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 60;
            background: rgba(11, 17, 32, 0.78);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid transparent;
            transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            background: rgba(8, 12, 20, 0.96);
            border-bottom-color: var(--glass-stroke);
            box-shadow: 0 18px 28px -26px rgba(0, 0, 0, 0.75);
        }

        .navbar {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: flex-start;
            gap: 30px;
            min-height: 76px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 11px;
            flex-shrink: 0;
        }

        .logo-mark {
            width: 42px;
            height: 42px;
            display: grid;
            place-items: center;
            border-radius: 13px;
            background: linear-gradient(145deg, #19E3D3, #0AAE9E);
            color: #071019;
            font-size: 21px;
            font-weight: 800;
            box-shadow: 0 0 0 1px rgba(18, 216, 200, 0.28), 0 0 26px rgba(18, 216, 200, 0.16);
        }

        .logo-text {
            font-size: 20px;
            font-weight: 800;
            letter-spacing: 0.01em;
            color: var(--text-high);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 36px;
            margin-left: 22px;
            padding-top: 2px;
        }

        .nav-link {
            position: relative;
            display: inline-flex;
            color: var(--text-body);
            font-size: 15px;
            font-weight: 500;
            transition: color 0.2s;
            padding: 8px 0;
        }

        .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            border-radius: 2px;
            background: var(--signal);
            transform: scaleX(0);
            transform-origin: left center;
            transition: transform 0.25s ease;
        }

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

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

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

        .nav-tools {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-left: auto;
        }

        .nav-search {
            display: flex;
            align-items: center;
            gap: 8px;
            width: 210px;
            height: 38px;
            padding: 0 6px 0 14px;
            border-radius: var(--radius-btn);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: border-color 0.2s, box-shadow 0.2s, width 0.25s ease;
        }

        .nav-search:focus-within {
            border-color: rgba(18, 216, 200, 0.72);
            box-shadow: 0 0 0 3px rgba(18, 216, 200, 0.12);
            width: 260px;
        }

        .nav-search input {
            flex: 1;
            min-width: 0;
            background: none;
            border: none;
            color: var(--text-high);
            font-size: 13px;
            line-height: 1;
        }

        .nav-search input::placeholder {
            color: var(--text-faint);
        }

        .nav-search button {
            width: 30px;
            height: 30px;
            display: grid;
            place-items: center;
            color: var(--text-muted);
            border-radius: 50%;
            transition: background 0.2s, color 0.2s;
        }

        .nav-search button:hover {
            color: var(--signal);
            background: rgba(18, 216, 200, 0.1);
        }

        .nav-login {
            color: var(--text-muted);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 4px;
            transition: color 0.2s;
        }

        .nav-login:hover {
            color: var(--signal);
        }

        .nav-cta {
            height: 38px;
            padding: 0 20px;
            font-size: 14px;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            background: rgba(255, 255, 255, 0.03);
            transition: background 0.2s, border-color 0.2s;
        }

        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            border-radius: 2px;
            background: var(--text-high);
            transition: transform 0.25s, opacity 0.2s;
        }

        .hamburger:hover {
            border-color: var(--signal);
        }

        .site-header.nav-open .hamburger span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .site-header.nav-open .hamburger span:nth-child(2) {
            opacity: 0;
        }

        .site-header.nav-open .hamburger span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .site-header.nav-open .nav-links {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
            pointer-events: auto;
        }

        /* ===== Article page ===== */
        .article-banner-section {
            position: relative;
            padding: clamp(60px, 7vw, 88px) 0 150px;
            background-image: linear-gradient(180deg, rgba(8, 12, 20, 0.76), rgba(8, 12, 20, 0.9)), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .article-banner-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(18, 216, 200, 0.5), transparent);
            opacity: 0.5;
        }

        .crumbs {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--text-faint);
            margin-bottom: 26px;
        }

        .crumbs a {
            transition: color 0.2s;
        }

        .crumbs a:hover {
            color: var(--signal);
        }

        .crumbs .sep {
            color: rgba(255, 255, 255, 0.24);
        }

        .crumbs .crumb-current {
            color: var(--text-muted);
        }

        .article-page-title {
            max-width: 64ch;
            font-size: clamp(32px, 4.4vw, 54px);
            line-height: 1.18;
            letter-spacing: -0.02em;
            color: var(--text-high);
            margin-bottom: 20px;
            text-wrap: balance;
        }

        .article-banner-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            color: var(--text-muted);
            font-size: 14px;
        }

        .article-banner-meta span,
        .article-banner-meta time {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: rgba(255, 255, 255, 0.055);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 999px;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-muted);
        }

        .article-banner-meta i {
            color: var(--signal);
        }

        .banner-note {
            color: var(--text-muted);
            font-size: 16px;
            max-width: 60ch;
        }

        .article-main-section {
            padding-bottom: clamp(56px, 7vw, 86px);
            margin-top: -94px;
            position: relative;
            z-index: 2;
        }

        .article-wrap-grid {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 344px;
            gap: 28px;
            align-items: start;
        }

        .article-main-col {
            min-width: 0;
        }

        .article-panel {
            background: linear-gradient(150deg, rgba(19, 28, 46, 0.82), rgba(17, 24, 39, 0.96));
            border: 1px solid var(--glass-stroke);
            border-radius: var(--radius-panel);
            box-shadow: 0 28px 55px -30px rgba(0, 0, 0, 0.85);
            padding: clamp(26px, 4vw, 54px);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .article-content {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-body);
            overflow-wrap: break-word;
        }

        .article-content p {
            margin: 0 0 22px;
            max-width: 72ch;
        }

        .article-content h2 {
            margin: 42px 0 16px;
            font-size: clamp(22px, 3vw, 30px);
            line-height: 1.35;
            letter-spacing: -0.01em;
            color: var(--text-high);
        }

        .article-content h3 {
            margin: 36px 0 12px;
            font-size: clamp(18px, 2vw, 23px);
            line-height: 1.4;
            color: var(--text-high);
        }

        .article-content h4 {
            margin: 28px 0 10px;
            font-size: 18px;
            color: var(--text-high);
        }

        .article-content ul,
        .article-content ol {
            margin: 0 0 24px 22px;
            line-height: 1.9;
        }

        .article-content ul li,
        .article-content ol li {
            margin-bottom: 8px;
        }

        .article-content ul {
            list-style: disc;
        }

        .article-content ol {
            list-style: decimal;
        }

        .article-content blockquote {
            margin: 32px 0;
            padding: 20px 24px;
            border-left: 3px solid var(--signal);
            background: rgba(18, 216, 200, 0.07);
            border-radius: 0 14px 14px 0;
            color: var(--text-high);
            font-size: 16px;
            line-height: 1.8;
        }

        .article-content img {
            margin: 28px 0;
            border-radius: 18px;
            box-shadow: var(--shadow-lift);
        }

        .article-content table {
            width: 100%;
            margin: 28px 0;
            border-collapse: separate;
            border-spacing: 0;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 14px;
            overflow: hidden;
            font-size: 15px;
            background: rgba(0, 0, 0, 0.14);
        }

        .article-content th,
        .article-content td {
            padding: 13px 16px;
            text-align: left;
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
        }

        .article-content th {
            background: rgba(18, 216, 200, 0.1);
            color: var(--text-high);
            font-weight: 600;
        }

        .article-content tr:last-child th,
        .article-content tr:last-child td {
            border-bottom: none;
        }

        .article-content a {
            color: var(--signal);
            border-bottom: 1px solid rgba(18, 216, 200, 0.4);
            transition: color 0.2s, border-color 0.2s;
        }

        .article-content a:hover {
            color: var(--signal-hover);
            border-color: var(--signal);
        }

        .article-end-note {
            margin-top: 42px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-faint);
        }

        .article-end-note i {
            color: var(--signal);
            margin-right: 6px;
        }

        .article-actions {
            display: flex;
            gap: 12px;
            margin-top: 24px;
            flex-wrap: wrap;
        }

        .article-actions .btn {
            height: 40px;
            font-size: 14px;
            padding: 0 18px;
        }

        .not-found-panel {
            text-align: center;
            padding: 80px 28px 96px;
        }

        .not-found-panel .nf-icon {
            display: grid;
            place-items: center;
            width: 68px;
            height: 68px;
            margin: 0 auto 22px;
            border-radius: 22px;
            background: rgba(18, 216, 200, 0.1);
            border: 1px solid rgba(18, 216, 200, 0.24);
            color: var(--signal);
            font-size: 28px;
        }

        .not-found-panel h2 {
            margin-bottom: 10px;
            font-size: 26px;
        }

        .not-found-panel p {
            color: var(--text-muted);
            margin-bottom: 28px;
        }

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

        .side-sticky {
            position: sticky;
            top: 100px;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .side-widget {
            background: linear-gradient(145deg, rgba(19, 28, 46, 0.78), rgba(17, 24, 39, 0.95));
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 18px;
            padding: 20px;
            box-shadow: 0 22px 36px -30px rgba(0, 0, 0, 0.8);
        }

        .side-widget-head {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 18px;
            padding-bottom: 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
        }

        .side-widget-head .side-icon {
            width: 40px;
            height: 40px;
            flex: 0 0 40px;
            border-radius: 12px;
            display: grid;
            place-items: center;
            background: rgba(18, 216, 200, 0.12);
            border: 1px solid rgba(18, 216, 200, 0.2);
            color: var(--signal);
            font-size: 16px;
        }

        .side-widget-head strong {
            display: block;
            font-size: 15px;
            color: var(--text-high);
            line-height: 1.3;
        }

        .side-widget-head small {
            display: block;
            font-size: 12px;
            color: var(--text-faint);
            margin-top: 3px;
        }

        .side-nav-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 14px 4px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            transition: padding-left 0.2s, background 0.2s;
        }

        .side-nav-item:last-child {
            border-bottom: none;
        }

        .side-nav-item:hover {
            padding-left: 8px;
            background: rgba(18, 216, 200, 0.04);
        }

        .side-nav-item b {
            display: block;
            color: var(--text-high);
            font-size: 14px;
            font-weight: 600;
            transition: color 0.2s;
        }

        .side-nav-item em {
            display: block;
            font-style: normal;
            font-size: 12px;
            color: var(--text-faint);
            margin-top: 4px;
        }

        .side-nav-arrow {
            width: 26px;
            height: 26px;
            flex: 0 0 26px;
            display: grid;
            place-items: center;
            border-radius: 8px;
            color: var(--signal);
            background: rgba(18, 216, 200, 0.1);
            font-size: 12px;
            margin-top: 2px;
        }

        .side-help {
            margin-top: 16px;
            padding: 14px 14px;
            background: rgba(245, 165, 36, 0.07);
            border: 1px solid rgba(245, 165, 36, 0.16);
            border-radius: 12px;
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .side-help strong {
            color: var(--beacon);
            font-weight: 600;
            display: block;
            margin-bottom: 4px;
        }

        .side-help a {
            color: var(--signal);
        }

        .side-help a:hover {
            text-decoration: underline;
        }

        .side-card-img {
            border-radius: 12px;
            overflow: hidden;
            margin-bottom: 14px;
        }

        .side-card-img img {
            width: 100%;
            height: 132px;
            object-fit: cover;
            display: block;
        }

        .side-brand-card {
            background:
                linear-gradient(160deg, rgba(18, 216, 200, 0.12), transparent 46%),
                linear-gradient(145deg, rgba(19, 28, 46, 0.9), rgba(17, 24, 39, 0.98));
        }

        .side-brand-row {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
        }

        .side-brand-row .mini-logo {
            display: grid;
            place-items: center;
            width: 38px;
            height: 38px;
            border-radius: 11px;
            background: linear-gradient(145deg, #19E3D3, #0AAE9E);
            color: #071019;
            font-weight: 800;
            font-size: 17px;
            box-shadow: 0 0 18px rgba(18, 216, 200, 0.2);
        }

        .side-brand-row strong {
            color: var(--text-high);
            font-size: 17px;
            font-weight: 700;
        }

        .side-brand-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .entry-node-section {
            padding: 36px 0 10px;
        }

        .entry-node-title {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 24px;
        }

        .entry-node-title span {
            width: 6px;
            height: 24px;
            background: var(--signal);
            border-radius: 3px;
            box-shadow: 0 0 12px rgba(18, 216, 200, 0.4);
        }

        .entry-node-title h2 {
            font-size: clamp(20px, 2vw, 26px);
        }

        .entry-card {
            background: linear-gradient(145deg, rgba(19, 28, 46, 0.72), rgba(17, 24, 39, 0.96));
            border: 1px solid var(--glass-stroke);
            border-radius: var(--radius-panel);
            padding: 24px;
            min-height: 180px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: transform 0.2s, border-color 0.25s, box-shadow 0.25s, background 0.25s;
            box-shadow: var(--shadow-soft);
        }

        .entry-card:hover {
            transform: translateY(-3px);
            border-color: rgba(18, 216, 200, 0.35);
            box-shadow: 0 24px 40px -30px rgba(0, 0, 0, 0.7), 0 0 30px rgba(18, 216, 200, 0.05);
        }

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

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

        .entry-card a {
            align-self: flex-start;
            margin-top: 18px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--signal);
            font-size: 14px;
            font-weight: 600;
            border-bottom: 1px solid transparent;
            transition: border-color 0.2s, color 0.2s, gap 0.2s;
        }

        .entry-card a:hover {
            gap: 12px;
            color: var(--signal-hover);
            border-color: rgba(18, 216, 200, 0.4);
        }

        .cta-band {
            background:
                radial-gradient(circle at 78% 20%, rgba(245, 165, 36, 0.08), transparent 36%),
                linear-gradient(180deg, rgba(8, 12, 20, 0.92), rgba(8, 12, 20, 0.95)),
                url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            padding: clamp(54px, 7vw, 90px) 0;
        }

        .cta-band-inner {
            max-width: 850px;
        }

        .cta-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.04em;
            color: var(--signal);
            text-transform: uppercase;
            margin-bottom: 16px;
        }

        .cta-kicker i {
            color: var(--beacon);
        }

        .cta-band h2 {
            font-size: clamp(26px, 3.4vw, 38px);
            line-height: 1.3;
            margin-bottom: 16px;
            color: var(--text-high);
        }

        .cta-band p {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.9;
            margin-bottom: 32px;
            max-width: 68ch;
        }

        .cta-band .btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .faq-card-section {
            padding: var(--space-section) 0;
        }

        .faq-head {
            max-width: 740px;
            margin-bottom: 40px;
        }

        .faq-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.08em;
            color: var(--signal);
            margin-bottom: 12px;
            text-transform: uppercase;
        }

        .faq-head h2 {
            font-size: clamp(26px, 3.2vw, 38px);
            line-height: 1.3;
            margin-bottom: 14px;
            color: var(--text-high);
        }

        .faq-head p {
            color: var(--text-muted);
            font-size: 16px;
            line-height: 1.8;
        }

        .faq-list {
            max-width: 840px;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            border-radius: 18px;
            background: linear-gradient(145deg, rgba(19, 28, 46, 0.7), rgba(17, 24, 39, 0.94));
            border: 1px solid rgba(255, 255, 255, 0.08);
            overflow: hidden;
            transition: border-color 0.2s, box-shadow 0.2s;
            box-shadow: 0 14px 24px -24px rgba(0, 0, 0, 0.5);
        }

        .faq-item:hover {
            border-color: rgba(18, 216, 200, 0.24);
        }

        .faq-item[open] {
            border-color: rgba(18, 216, 200, 0.3);
        }

        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-high);
            cursor: pointer;
            user-select: none;
            transition: background 0.2s;
        }

        .faq-item summary i {
            font-size: 14px;
            color: var(--signal);
            flex: 0 0 auto;
            transition: transform 0.25s;
        }

        .faq-item[open] summary {
            background: rgba(18, 216, 200, 0.05);
        }

        .faq-item[open] summary i {
            transform: rotate(45deg);
        }

        .faq-item .faq-answer {
            padding: 2px 22px 22px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.85;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            margin: 0 0 0;
        }

        .faq-item .faq-answer p {
            margin-top: 16px;
            max-width: 78ch;
        }

        .contact-strip {
            padding: 34px 0 66px;
        }

        .contact-wrap {
            display: flex;
            align-items: center;
            gap: 26px;
            padding: 28px 30px;
            background: rgba(255, 255, 255, 0.025);
            border: 1px solid rgba(255, 255, 255, 0.07);
            border-radius: var(--radius-panel);
            flex-wrap: wrap;
            justify-content: space-between;
        }

        .contact-wrap-left {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .contact-icon {
            width: 54px;
            height: 54px;
            flex: 0 0 54px;
            display: grid;
            place-items: center;
            border-radius: 16px;
            background: rgba(18, 216, 200, 0.12);
            border: 1px solid rgba(18, 216, 200, 0.2);
            color: var(--signal);
            font-size: 21px;
        }

        .contact-wrap h3 {
            color: var(--text-high);
            font-size: 18px;
        }

        .contact-wrap p {
            color: var(--text-muted);
            font-size: 14px;
            margin-top: 4px;
        }

        .contact-wrap-right {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .site-footer {
            background: rgba(6, 9, 16, 0.92);
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 64px 0 28px;
            position: relative;
            overflow: hidden;
        }

        .site-footer::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(18, 216, 200, 0.25), transparent);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.7fr 1fr 1fr 1.5fr;
            gap: 30px;
            margin-bottom: 42px;
        }

        .footer-brand {
            max-width: 320px;
        }

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

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

        .footer-title {
            color: var(--text-high);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.05em;
            margin-bottom: 20px;
            padding-bottom: 14px;
            position: relative;
        }

        .footer-title::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 26px;
            height: 2px;
            background: var(--signal);
            border-radius: 2px;
        }

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

        .footer-links a {
            color: var(--text-muted);
            font-size: 14px;
            transition: color 0.2s, padding-left 0.2s;
        }

        .footer-links a:hover {
            color: var(--signal);
            padding-left: 4px;
        }

        .footer-links li {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-faint);
        }

        .footer-bottom span:first-child {
            font-weight: 500;
            color: var(--text-muted);
        }

        @media (max-width: 1080px) {
            .article-wrap-grid {
                grid-template-columns: minmax(0, 1fr) 300px;
                gap: 22px;
            }

            .footer-grid {
                grid-template-columns: 1.4fr 1fr 1fr;
            }

            .footer-brand {
                grid-column: 1 / -1;
                max-width: 440px;
            }

            body {
                font-size: 16px;
            }
        }

        @media (max-width: 900px) {
            .navbar {
                gap: 16px;
                min-height: 70px;
            }

            .nav-links {
                position: absolute;
                top: calc(100% + 10px);
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
                background: rgba(8, 12, 20, 0.98);
                border: 1px solid rgba(255, 255, 255, 0.09);
                border-radius: 18px;
                padding: 14px;
                margin: 0;
                opacity: 0;
                visibility: hidden;
                transform: translateY(-8px);
                pointer-events: none;
                transition: opacity 0.22s, visibility 0.22s, transform 0.22s;
                box-shadow: 0 24px 45px -20px rgba(0, 0, 0, 0.8);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
            }

            .nav-links .nav-link {
                padding: 13px 12px;
                border-radius: 10px;
                font-size: 15px;
                color: var(--text-body);
            }

            .nav-links .nav-link::after {
                display: none;
            }

            .nav-links .nav-link:hover {
                background: rgba(18, 216, 200, 0.08);
                color: var(--signal);
            }

            .nav-links .nav-link.active {
                background: rgba(18, 216, 200, 0.1);
                color: var(--signal);
            }

            .nav-search {
                display: none;
            }

            .hamburger {
                display: flex;
            }

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

            .side-sticky {
                position: static;
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 640px) {
            .container {
                width: min(1240px, calc(100% - 36px));
            }

            .navbar {
                gap: 10px;
            }

            .logo-mark {
                width: 38px;
                height: 38px;
                font-size: 18px;
                border-radius: 11px;
            }

            .logo-text {
                font-size: 17px;
            }

            .nav-cta {
                height: 36px;
                padding: 0 15px;
                font-size: 13px;
            }

            .nav-login {
                display: none;
            }

            .article-banner-section {
                padding: 56px 0 128px;
            }

            .article-main-section {
                margin-top: -76px;
            }

            .article-page-title {
                font-size: 30px;
            }

            .article-panel {
                padding: 20px 16px;
                border-radius: 16px;
            }

            .article-content {
                font-size: 16px;
                line-height: 1.85;
            }

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

            .side-sticky {
                grid-template-columns: 1fr;
            }

            .cta-band .btn-group {
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-band .btn-group .btn {
                width: 100%;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 34px;
                margin-bottom: 32px;
            }

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

            .contact-wrap {
                padding: 20px;
                justify-content: center;
                text-align: center;
            }

            .contact-wrap-left {
                justify-content: center;
            }

            .contact-wrap-right {
                justify-content: center;
                width: 100%;
            }

            .contact-wrap-right .btn {
                width: 100%;
            }

            .article-banner-meta {
                gap: 10px;
            }

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

        @media (max-width: 480px) {
            .nav-cta {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .logo-text {
                font-size: 16px;
            }
        }

/* roulang page: category2 */
:root {
        --night-bg: #080C14;
        --surface-primary: #0B101B;
        --surface-panel: #111827;
        --surface-panel-2: #131C2E;
        --signal: #12D8C8;
        --signal-hover: #0EA89C;
        --signal-active: #0B857C;
        --beacon: #F5A524;
        --green: #34D399;
        --title-color: #F9FAFB;
        --body-color: #C7D2E5;
        --muted-color: #93A0B4;
        --weak-color: #67738C;
        --error: #F87171;
        --glass-stroke: rgba(255, 255, 255, 0.08);
        --radius-card: 16px;
        --radius-btn: 999px;
        --font-base: 'Inter', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
        --transition: 0.25s ease;
    }
    * {
        box-sizing: border-box;
    }
    html,
    body {
        margin: 0;
        padding: 0;
        font-family: var(--font-base);
    }
    body {
        background-color: var(--night-bg);
        color: var(--body-color);
        line-height: 1.75;
        background-image: radial-gradient(ellipse 1200px 500px at 20% -5%, rgba(18, 216, 200, 0.09), transparent 60%), radial-gradient(ellipse 800px 400px at 90% 15%, rgba(245, 165, 36, 0.04), transparent 55%);
        background-repeat: no-repeat;
        overflow-x: hidden;
        font-size: 16px;
    }
    a {
        text-decoration: none;
        color: inherit;
        transition: var(--transition);
    }
    img {
        max-width: 100%;
        display: block;
    }
    button,
    input {
        font-family: var(--font-base);
    }
    ul,
    ol {
        list-style: none;
        margin: 0;
        padding: 0;
    }
    h1,
    h2,
    h3,
    h4,
    h5,
    h6 {
        color: var(--title-color);
        margin: 0;
        line-height: 1.35;
    }
    .container {
        max-width: 1240px;
        margin: 0 auto;
        padding: 0 24px;
    }
    .site-header {
        position: sticky;
        top: 0;
        z-index: 1000;
        background: rgba(11, 17, 32, 0.72);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 1px solid transparent;
        transition: var(--transition);
    }
    .site-header.scrolled {
        background: rgba(11, 17, 32, 0.95);
        border-bottom-color: var(--glass-stroke);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    }
    .navbar {
        display: flex;
        align-items: center;
        justify-content: space-between;
        min-height: 72px;
        gap: 20px;
        flex-wrap: wrap;
    }
    .logo {
        display: flex;
        align-items: center;
        gap: 10px;
        flex-shrink: 0;
    }
    .logo-mark {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 38px;
        height: 38px;
        background: radial-gradient(circle at 30% 25%, rgba(18, 216, 200, 0.9), rgba(18, 216, 200, 0.5) 50%, rgba(18, 216, 200, 0.15));
        color: #0B0F17;
        font-weight: 800;
        border-radius: 12px;
        font-size: 20px;
        line-height: 1;
        box-shadow: 0 0 24px rgba(18, 216, 200, 0.25);
    }
    .logo-text {
        font-size: 19px;
        font-weight: 800;
        color: var(--title-color);
        letter-spacing: 0.2px;
        white-space: nowrap;
    }
    .nav-links {
        display: flex;
        gap: 32px;
        flex-wrap: wrap;
        align-items: center;
    }
    .nav-link {
        position: relative;
        padding: 12px 4px;
        font-size: 15px;
        font-weight: 500;
        color: #CBD5E1;
        display: block;
        transition: var(--transition);
    }
    .nav-link::after {
        content: '';
        position: absolute;
        left: 0;
        bottom: 4px;
        width: 100%;
        height: 2px;
        border-radius: 2px;
        background: var(--signal);
        transform: scaleX(0);
        transition: transform 0.25s ease;
        transform-origin: center;
    }
    .nav-link:hover {
        color: var(--title-color);
    }
    .nav-link:hover::after {
        transform: scaleX(0.45);
    }
    .nav-link.active {
        color: var(--signal);
    }
    .nav-link.active::after {
        transform: scaleX(1);
    }
    .nav-tools {
        display: flex;
        align-items: center;
        gap: 14px;
        flex-shrink: 0;
    }
    .nav-search {
        position: relative;
        display: flex;
        align-items: center;
    }
    .nav-search input {
        width: 0;
        padding: 8px 32px 8px 14px;
        border-radius: var(--radius-btn);
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid transparent;
        font-size: 13px;
        transition: width 0.3s ease;
        color: var(--title-color);
    }
    .nav-search input:focus {
        width: 160px;
        outline: none;
        border-color: var(--signal);
        background: rgba(255, 255, 255, 0.08);
        box-shadow: 0 0 20px rgba(18, 216, 200, 0.12);
    }
    .nav-search button {
        position: absolute;
        right: 0;
        background: transparent;
        border: none;
        color: var(--muted-color);
        cursor: pointer;
        width: 32px;
        height: 32px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 50%;
        transition: var(--transition);
    }
    .nav-search button:hover {
        color: var(--signal);
    }
    .nav-login {
        font-size: 14px;
        font-weight: 500;
        color: #CBD5E1;
        padding: 8px 12px;
        border-radius: 8px;
        transition: var(--transition);
        white-space: nowrap;
    }
    .nav-login:hover {
        color: var(--signal);
        background: rgba(18, 216, 200, 0.08);
    }
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 12px 26px;
        border-radius: var(--radius-btn);
        font-weight: 600;
        font-size: 15px;
        line-height: 1;
        cursor: pointer;
        transition: all 0.28s ease;
        border: none;
        text-decoration: none;
        letter-spacing: 0.2px;
    }
    .btn-primary {
        background: var(--signal);
        color: #0B0F17;
    }
    .btn-primary:hover {
        background: var(--signal-hover);
        transform: translateY(-2px);
        box-shadow: 0 0 32px rgba(18, 216, 200, 0.35);
    }
    .btn-primary:active {
        background: var(--signal-active);
        transform: translateY(1px);
        box-shadow: none;
    }
    .btn-secondary {
        background: rgba(18, 216, 200, 0.06);
        color: var(--title-color);
        border: 1px solid rgba(18, 216, 200, 0.28);
    }
    .btn-secondary:hover {
        border-color: var(--signal);
        color: var(--signal);
        box-shadow: 0 0 20px rgba(18, 216, 200, 0.18);
    }
    .btn-outline {
        background: transparent;
        color: #E2E8F0;
        border: 1px solid rgba(255, 255, 255, 0.16);
    }
    .btn-outline:hover {
        border-color: var(--signal);
        color: var(--signal);
        background: rgba(18, 216, 200, 0.04);
    }
    .btn-warning {
        background: var(--beacon);
        color: #1a1c23;
        font-weight: 700;
    }
    .btn-warning:hover {
        box-shadow: 0 0 28px rgba(245, 165, 36, 0.4);
        background: #f0a014;
        transform: translateY(-2px);
    }
    .btn-lg {
        padding: 16px 38px;
        font-size: 16px;
    }
    .nav-btn-sm {
        padding: 9px 20px;
        font-size: 13px;
    }
    .hamburger {
        display: none;
        background: transparent;
        border: none;
        cursor: pointer;
        padding: 8px;
        gap: 5px;
        flex-direction: column;
    }
    .hamburger span {
        display: block;
        width: 22px;
        height: 2px;
        background: var(--title-color);
        border-radius: 2px;
    }
    .banner {
        position: relative;
        background: linear-gradient(135deg, rgba(8, 12, 20, 0.92) 0%, rgba(11, 16, 27, 0.78) 50%, rgba(19, 28, 46, 0.66) 100%), url('/assets/images/backpic/back-2.webp') no-repeat center;
        background-size: cover;
        background-position: center;
        padding: 90px 0 60px;
        border-bottom: 1px solid var(--glass-stroke);
    }
    .banner .breadcrumb {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        color: var(--muted-color);
        margin-bottom: 24px;
        flex-wrap: wrap;
    }
    .banner .breadcrumb a {
        color: var(--muted-color);
    }
    .banner .breadcrumb a:hover {
        color: var(--signal);
    }
    .banner .breadcrumb .sep {
        color: var(--weak-color);
    }
    .banner .breadcrumb span:last-child {
        color: var(--title-color);
    }
    .banner .banner-content {
        max-width: 720px;
    }
    .banner .eyebrow {
        display: inline-block;
        background: rgba(18, 216, 200, 0.1);
        border: 1px solid rgba(18, 216, 200, 0.25);
        color: var(--signal);
        font-size: 13px;
        font-weight: 600;
        padding: 6px 14px;
        border-radius: var(--radius-btn);
        margin-bottom: 18px;
        letter-spacing: 0.5px;
    }
    .banner h1 {
        font-size: clamp(30px, 4.4vw, 58px);
        line-height: 1.15;
        font-weight: 800;
        letter-spacing: -0.3px;
        margin-bottom: 15px;
    }
    .banner .subtitle {
        font-size: 17px;
        line-height: 1.8;
        color: var(--body-color);
        margin-bottom: 28px;
        max-width: 64ch;
    }
    .banner .badge-group {
        display: flex;
        gap: 12px;
    }
    .banner .badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 8px 14px;
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: var(--radius-btn);
        font-size: 13px;
        color: #D1D5DB;
    }
    .banner .badge i {
        color: var(--signal);
    }
    .section-padding {
        padding: 90px 0;
    }
    .section-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 30px;
        margin-bottom: 46px;
        flex-wrap: wrap;
    }
    .section-header .header-eyebrow {
        font-size: 13px;
        color: var(--signal);
        font-weight: 600;
        letter-spacing: 1px;
        margin-bottom: 6px;
    }
    .section-header h2 {
        font-size: clamp(26px, 3vw, 38px);
    }
    .section-header p {
        color: var(--muted-color);
        font-size: 15px;
        margin-top: 10px;
        max-width: 55ch;
    }
    .anchor-nav {
        background: rgba(17, 24, 39, 0.6);
        border: 1px solid var(--glass-stroke);
        border-radius: var(--radius-card);
        backdrop-filter: blur(14px);
        padding: 18px 32px;
        display: flex;
        align-items: center;
        gap: 10px;
        flex-wrap: wrap;
        margin-bottom: 40px;
    }
    .anchor-nav .anchor-title {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 14px;
        font-weight: 700;
        color: var(--title-color);
        white-space: nowrap;
    }
    .anchor-nav .anchor-title i {
        color: var(--signal);
    }
    .anchor-nav a {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        color: var(--muted-color);
        font-size: 14px;
        white-space: nowrap;
        text-decoration: none;
        border-bottom: 1px solid transparent;
        padding-bottom: 2px;
    }
    .anchor-nav a:hover {
        color: var(--signal);
    }
    .anchor-nav .divider {
        color: var(--weak-color);
        font-size: 11px;
    }
    .feature-updates {
        background: #0A0E18;
        border: 1px solid var(--glass-stroke);
        border-radius: 18px;
        padding: 40px;
        margin-bottom: 30px;
    }
    .feature-updates .feature-top {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-bottom: 26px;
        flex-wrap: wrap;
        gap: 16px;
    }
    .feature-updates .feature-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(245, 165, 36, 0.1);
        color: var(--beacon);
        border: 1px solid rgba(245, 165, 36, 0.25);
        border-radius: var(--radius-btn);
        padding: 6px 14px;
        font-size: 13px;
        font-weight: 600;
    }
    .feature-updates .feature-date {
        color: var(--weak-color);
        font-size: 14px;
    }
    .feature-updates .feature-body {
        display: grid;
        grid-template-columns: 1.1fr 1fr;
        gap: 36px;
        align-items: center;
    }
    .feature-updates h3 {
        font-size: clamp(18px, 1.7vw, 24px);
        margin-bottom: 15px;
        line-height: 1.5;
    }
    .feature-updates p {
        color: var(--body-color);
        font-size: 15.5px;
        line-height: 1.9;
        margin-bottom: 16px;
    }
    .feature-updates ul {
        margin: 0;
    }
    .feature-updates ul li {
        position: relative;
        padding-left: 28px;
        color: var(--body-color);
        font-size: 15px;
        margin-bottom: 12px;
        line-height: 1.7;
    }
    .feature-updates ul li::before {
        content: '\f058';
        font-family: 'Font Awesome 6 Free';
        font-weight: 400;
        position: absolute;
        left: 0;
        font-size: 14px;
        color: var(--signal);
    }
    .feature-updates .img-holder {
        border-radius: 18px;
        overflow: hidden;
        height: 260px;
        background: var(--surface-panel);
        border: 1px solid var(--glass-stroke);
        position: relative;
    }
    .feature-updates .img-holder img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.5s ease;
    }
    .feature-updates .img-holder:hover img {
        transform: scale(1.04);
    }
    .timeline-section .panel-text {
        display: grid;
        grid-template-columns: 1fr;
        justify-items: center;
        text-align: center;
        padding: 40px 20px;
    }
    .timeline-card {
        background: rgba(255, 255, 255, 0.02);
        border: 1px solid var(--glass-stroke);
        border-radius: 18px;
        padding: 40px;
        backdrop-filter: blur(8px);
    }
    .timeline-item {
        display: grid;
        grid-template-columns: 90px 1fr;
        gap: 32px;
        padding: 22px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    .timeline-item:last-child {
        border-bottom: none;
    }
    .timeline-item .time-stamp {
        font-size: 14px;
        font-weight: 700;
        color: var(--signal);
        margin-top: 2px;
    }
    .timeline-item .time-card h3 {
        font-size: 18px;
        color: var(--title-color);
        margin-bottom: 4px;
        font-weight: 600;
    }
    .timeline-item .time-card .tag {
        display: inline-block;
        background: rgba(18, 216, 200, 0.09);
        color: var(--signal);
        font-size: 12px;
        padding: 4px 10px;
        border-radius: 6px;
        margin-bottom: 8px;
    }
    .timeline-item .time-card .tag.t-warn {
        background: rgba(245, 165, 36, 0.09);
        color: var(--beacon);
    }
    .timeline-item .time-card p {
        color: var(--muted-color);
        font-size: 15px;
        margin-top: 6px;
        line-height: 1.75;
        margin-bottom: 0;
    }
    .quick-cards {
        margin-top: 40px;
    }
    .quick-cards .grid-card-holder {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }
    .quick-card {
        background: linear-gradient(145deg, rgba(19, 28, 46, 0.95), rgba(17, 24, 39, 0.98));
        border: 1px solid var(--glass-stroke);
        border-radius: var(--radius-card);
        padding: 26px;
        transition: transform 0.25s, box-shadow 0.25s;
    }
    .quick-card:hover {
        transform: translateY(-3px);
        box-shadow: 0 22px 30px -24px rgba(0, 0, 0, 0.6), 0 0 20px rgba(18, 216, 200, 0.05);
    }
    .quick-card .quick-icon {
        width: 42px;
        height: 42px;
        border-radius: 12px;
        background: rgba(18, 216, 200, 0.15);
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 15px;
        font-size: 18px;
        color: var(--signal);
    }
    .quick-card h4 {
        font-size: 16px;
        color: var(--title-color);
        margin-bottom: 8px;
        font-weight: 600;
    }
    .quick-card p {
        font-size: 14px;
        color: var(--muted-color);
        line-height: 1.7;
        margin-bottom: 0;
    }
    .section-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 36px;
        align-items: center;
        background: rgba(255, 255, 255, 0.01);
        border: 1px solid var(--glass-stroke);
        border-radius: 18px;
        padding: 40px;
    }
    .section-grid.reverse .img-col {
        order: 2;
    }
    .section-grid.reverse .txt-col {
        order: 1;
    }
    .section-grid .img-col {
        background: transparent;
        border-radius: 18px;
    }
    .section-grid .img-col img {
        border-radius: 18px;
        border: 1px solid var(--glass-stroke);
        min-height: 240px;
        object-fit: cover;
        width: 100%;
    }
    .section-grid .txt-col h2 {
        font-size: 24px;
        margin-bottom: 16px;
        line-height: 1.4;
    }
    .section-grid .txt-col p {
        color: var(--body-color);
        margin-bottom: 16px;
        font-size: 15px;
    }
    .tip-list {
        display: grid;
        gap: 12px;
        margin-top: 20px;
    }
    .tip-item {
        color: var(--body-color);
        font-size: 15px;
        padding-left: 24px;
        position: relative;
        line-height: 1.7;
    }
    .tip-item::before {
        content: '\f105';
        font-family: 'Font Awesome 6 Free';
        font-weight: 900;
        color: var(--signal);
        position: absolute;
        left: 4px;
        font-size: 13px;
    }
    .CTA-wrap {
        background: transparent;
    }
    .CTA-box {
        background: linear-gradient(115deg, rgba(19, 28, 46, 0.7) 0%, rgba(11, 17, 32, 0.8) 100%), url('/assets/images/backpic/back-1.webp') no-repeat center;
        background-size: cover;
        background-position: center;
        border-radius: 18px;
        border: 1px solid rgba(18, 216, 200, 0.14);
        padding: 48px 40px;
        text-align: center;
    }
    .CTA-box h2 {
        font-size: clamp(24px, 2.8vw, 36px);
        margin-bottom: 10px;
    }
    .CTA-box p {
        color: var(--muted-color);
        max-width: 52ch;
        margin: 0 auto 26px;
    }
    .CTA-box .cta-actions {
        display: flex;
        gap: 16px;
        justify-content: center;
        flex-wrap: wrap;
    }
    .faq {
        counter-reset: faq;
    }
    .faq-list {
        max-width: 760px;
        margin: 0 auto;
    }
    .faq-list details {
        background: rgba(17, 24, 39, 0.5);
        border: 1px solid var(--glass-stroke);
        border-radius: 16px;
        margin-bottom: 14px;
        overflow: hidden;
        transition: background-color 0.3s;
    }
    .faq-list details[open] {
        background: rgba(17, 24, 39, 0.65);
        border-color: rgba(18, 216, 200, 0.12);
    }
    .faq-list summary {
        display: flex;
        align-items: center;
        gap: 16px;
        cursor: pointer;
        padding: 19px 22px;
        font-weight: 600;
        color: var(--title-color);
        list-style: none;
        font-size: 16px;
        transition: color 0.2s;
    }
    .faq-list summary::-webkit-details-marker {
        display: none;
    }
    .faq-list summary:hover {
        color: var(--signal);
    }
    .faq-list summary .plus-icon {
        width: 18px;
        height: 18px;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: transform 0.25s;
        margin-left: auto;
        margin-right: 0;
        color: var(--signal);
        flex-shrink: 0;
    }
    .faq-list details[open] summary .plus-icon {
        transform: rotate(45deg);
    }
    .faq-list summary .faq-num {
        font-size: 13px;
        font-weight: 700;
        color: var(--signal);
        background: rgba(18, 216, 200, 0.1);
        width: 26px;
        height: 26px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border-radius: 50%;
        flex-shrink: 0;
    }
    .faq-list .ans {
        padding: 0 22px 18px 64px;
        color: var(--muted-color);
        font-size: 15px;
        line-height: 1.8;
    }
    .faq-list .ans p {
        margin-bottom: 0;
    }
    .footer-cta {
        background: rgba(12, 17, 26, 0.4);
        border: 1px solid var(--glass-stroke);
        border-radius: 18px;
        padding: 34px 40px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 30px;
        flex-wrap: wrap;
    }
    .footer-cta .fc-txt h3 {
        font-size: 19px;
        margin-bottom: 4px;
    }
    .footer-cta .fc-txt p {
        margin: 0;
        color: var(--muted-color);
        font-size: 14px;
    }
    .site-footer {
        background: var(--surface-panel);
        border-top: 1px solid var(--glass-stroke);
        padding: 60px 0 28px;
        margin-top: 90px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr 1fr 1fr 1.4fr;
        gap: 36px;
        margin-bottom: 40px;
    }
    .footer-brand .logo {
        margin-bottom: 14px;
    }
    .footer-brand>p {
        font-size: 14px;
        color: var(--muted-color);
        margin: 10px 0 0;
        max-width: 28ch;
        line-height: 1.8;
    }
    .footer-title {
        color: var(--title-color);
        font-weight: 700;
        font-size: 16px;
        margin-bottom: 16px;
    }
    .footer-links li {
        margin-bottom: 10px;
    }
    .footer-links a {
        color: var(--muted-color);
        font-size: 14px;
    }
    .footer-links a:hover {
        color: var(--signal);
    }
    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.06);
        padding-top: 24px;
        display: flex;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 16px;
        color: var(--weak-color);
        font-size: 13px;
    }
    @media (max-width: 1024px) {
        .feature-updates .feature-body {
            grid-template-columns: 1fr;
            gap: 26px;
        }
        .feature-updates .img-holder {
            height: 230px;
        }
        .quick-cards .grid-card-holder {
            grid-template-columns: repeat(2, 1fr);
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
        }
        .container {
            padding: 0 20px;
        }
        .section-padding {
            padding: 70px 0;
        }
        .navbar {
            gap: 12px;
        }
    }
    @media (max-width: 768px) {
        .site-header .navbar {
            flex-wrap: wrap;
            min-height: auto;
            padding: 14px 0;
        }
        .nav-links {
            display: none;
            width: 100%;
            order: 3;
            justify-content: center;
            flex-direction: column;
            gap: 4px;
            background: rgba(11, 17, 32, 0.95);
            backdrop-filter: blur(20px);
            border-radius: 18px;
            padding: 18px;
            border: 1px solid var(--glass-stroke);
        }
        .nav-links.open {
            display: flex;
        }
        .nav-link.active::after {
            transform: scaleX(1);
            width: 50px;
        }
        .nav-search {
            order: 4;
            width: 100%;
            display: none;
        }
        .nav-search input,
        input {
            width: 20% !important;
        }
        .nav-search input:focus {
            width: 100% !important;
        }
        .nav-tools .nav-login {
            display: none;
        }
        .hamburger {
            display: flex;
            align-self: center;
        }
        .nav-search,
        .nav-tools .nav-search {
            display: none;
        }
        .nav-tools .nav-cta {
            margin-left: auto;
        }
        .content-holder .nav-links {
            position: absolute;
            left: 0;
            top: 72px;
            width: 100%;
            background: rgba(11, 17, 32, 0.97);
            z-index: 999;
        }
        .banner {
            padding: 60px 0 48px;
            background: linear-gradient(135deg, rgba(8, 12, 20, 0.95) 0%, rgba(11, 16, 27, 0.82) 50%, rgba(19, 28, 46, 0.75) 100%), url('/assets/images/backpic/back-2.webp') no-repeat center;
            background-size: cover;
        }
        .feature-updates {
            padding: 25px;
        }
        .section-grid {
            grid-template-columns: 1fr;
            padding: 30px;
        }
        .section-grid.reverse .img-col {
            order: 1;
        }
        .section-grid.reverse .txt-col {
            order: 2;
        }
        .timeline-item {
            grid-template-columns: 1fr;
            gap: 10px;
            padding: 20px 0;
        }
        .timeline-item .time-stamp {
            font-size: 14px;
        }
        .anchor-nav {
            flex-direction: column;
            align-items: flex-start;
        }
        .anchor-nav .divider {
            display: none;
        }
        .quick-cards .grid-card-holder {
            grid-template-columns: 1fr;
        }
        .section-header {
            flex-direction: column;
            align-items: flex-start;
        }
        .CTA-box {
            padding: 36px 24px;
        }
        .footer-cta {
            padding: 28px 24px;
        }
        .site-footer {
            padding-top: 45px;
        }
        .footer-cta {
            flex-direction: column;
            text-align: center;
        }
        .btn {
            white-space: nowrap;
        }
    }
    @media (max-width: 520px) {
        body {
            font-size: 15px;
        }
        .container {
            padding: 0 14px;
        }
        .logo-text {
            font-size: 17px;
        }
        .grid-holder {
            grid-template-columns: 1fr;
        }
        .section-grid {
            padding: 24px;
        }
        .feature-updates {
            padding: 20px;
        }
        .quick-cards .grid-card-holder {
            grid-template-columns: 1fr;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 30px;
        }
        .btn-lg {
            padding: 14px 28px;
            font-size: 15px;
        }
        .faq-list summary {
            padding: 16px 16px;
        }
        .faq-list .ans {
            padding: 0 16px 15px 52px;
        }
        .feature-updates .feature-top {
            align-items: flex-start;
            gap: 8px;
        }
        .feature-updates .feature-body {
            grid-template-columns: 1fr;
        }
        .feature-updates .feature-body .txt-side {
            order: 1;
        }
        .footer-bottom {
            justify-content: center;
            text-align: center;
        }
        .banner h1 {
            font-size: 30px;
        }
        .anchor-nav {
            padding: 16px;
        }
        .anchor-nav a {
            font-size: 13px;
        }
    }