/* roulang page: index */
:root {
            --color-bg: #F6F6F1;
            --color-surface: #FFFFFF;
            --color-ink: #141414;
            --color-ink-soft: #4F4F4F;
            --color-line: rgba(20, 20, 20, 0.12);
            --color-primary: #CDFF30;
            --color-primary-ink: #161F00;
            --color-accent-electric: #7A5CFF;
            --color-warning-accent: #FF5A36;
            --radius-lg: 22px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 0 rgba(20, 20, 20, 0.07), 0 8px 24px rgba(20, 20, 20, 0.06);
            --shadow-md: 0 4px 0 rgba(20, 20, 20, 0.1), 0 18px 44px rgba(0, 0, 0, 0.08);
            --shadow-lift: 0 8px 0 rgba(20, 20, 20, 0.09), 0 26px 60px rgba(0, 0, 0, 0.13);
            --font-cn: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-cn);
            background: var(--color-bg);
            color: var(--color-ink);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
            overflow-x: hidden;
        }

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

        a {
            color: var(--color-ink);
            text-decoration: none;
            transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
        }

        a:hover {
            color: var(--color-ink);
        }

        button,
        input,
        select,
        textarea {
            font-family: var(--font-cn);
        }

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

        h1,
        h2,
        h3,
        h4 {
            margin: 0 0 0.5em;
            line-height: 1.3;
            letter-spacing: -0.02em;
            color: var(--color-ink);
        }

        h1 {
            font-size: clamp(44px, 6vw, 76px);
            font-weight: 800;
            line-height: 1.1;
            letter-spacing: -0.01em;
        }

        h2 {
            font-size: clamp(28px, 3.8vw, 44px);
            font-weight: 750;
            line-height: 1.3;
        }

        h3 {
            font-size: clamp(20px, 2.2vw, 26px);
            font-weight: 650;
            line-height: 1.4;
        }

        p {
            margin-bottom: 1rem;
        }

        .container {
            max-width: 1320px;
        }

        section {
            scroll-margin-top: 120px;
        }

        .section-pad {
            padding: 110px 0;
        }

        @media (max-width: 992px) {
            .section-pad {
                padding: 84px 0;
            }
        }

        @media (max-width: 576px) {
            .section-pad {
                padding: 64px 0;
            }
        }

        .btn {
            border-radius: 999px;
            font-weight: 650;
            font-size: 15px;
            padding: 12px 26px;
            border: 1.5px solid transparent;
            transition: all 0.2s ease;
            letter-spacing: 0.01em;
        }

        .btn-lg {
            font-size: 17px;
            padding: 14px 34px;
        }

        .btn-primary {
            background: var(--color-primary) !important;
            color: var(--color-primary-ink) !important;
            border-color: var(--color-primary) !important;
            box-shadow: 0 3px 0 rgba(18, 24, 5, 0.15);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--color-ink) !important;
            color: var(--color-primary) !important;
            border-color: var(--color-primary) !important;
            transform: translateY(-2px);
            box-shadow: 0 8px 0 rgba(18, 18, 18, 0.12);
        }

        .btn-ghost {
            background: transparent;
            color: var(--color-ink);
            border-color: var(--color-ink);
        }

        .btn-ghost:hover,
        .btn-ghost:focus {
            background: var(--color-ink);
            color: #fff;
            border-color: var(--color-ink);
            transform: translateY(-2px);
        }

        .btn-white-ghost {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.65);
        }

        .btn-white-ghost:hover {
            background: #fff;
            color: var(--color-ink);
            border-color: #fff;
        }

        a:focus-visible,
        button:focus-visible,
        .form-control:focus-visible {
            outline: 3px solid var(--color-accent-electric);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        .badge {
            font-weight: 600;
            border-radius: 999px;
            padding: 0.45em 0.95em;
            line-height: 1.3;
        }

        /* ===== Dock Navigation ===== */
        .dock-header {
            position: fixed;
            top: 16px;
            left: 0;
            right: 0;
            z-index: 1080;
            pointer-events: none;
        }

        .dock-header .navbar {
            pointer-events: auto;
        }

        .dock-nav {
            max-width: 1180px;
            margin: 0 auto;
            border-radius: 999px;
            padding: 8px 14px 8px 22px;
            background: rgba(18, 18, 18, 0.92);
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.22);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            min-height: 64px;
        }

        .dock-nav .navbar-brand {
            color: #fff;
            font-weight: 800;
            letter-spacing: -0.01em;
            font-size: 18px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .dock-nav .navbar-brand .brand-mark {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--color-primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--color-ink);
            font-size: 14px;
            flex: 0 0 auto;
        }

        .dock-nav .navbar-nav {
            gap: 2px;
            margin-left: 12px;
        }

        .dock-nav .nav-link {
            color: rgba(255, 255, 255, 0.8);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 15px;
            border-radius: 999px;
            position: relative;
        }

        .dock-nav .nav-link:hover,
        .dock-nav .nav-link:focus {
            color: var(--color-primary);
            background: rgba(255, 255, 255, 0.08);
        }

        .dock-nav .nav-link.active {
            color: var(--color-primary);
            background: rgba(205, 255, 48, 0.12);
        }

        .dock-nav .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 4px;
            left: 18px;
            right: 18px;
            height: 2px;
            border-radius: 2px;
            background: var(--color-primary);
        }

        .dock-nav .nav-cta {
            border-radius: 999px;
            padding: 8px 20px;
            font-size: 14px;
            font-weight: 650;
            color: var(--color-primary);
            border: 1px solid var(--color-primary);
            margin-left: 8px;
            transition: 0.2s ease;
        }

        .dock-nav .nav-cta:hover {
            background: var(--color-primary);
            color: #161F00;
        }

        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.28);
            border-radius: 999px;
            padding: 6px 14px;
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
            font-size: 18px;
            line-height: 1;
        }

        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        .brand-mobile {
            display: none;
        }

        @media (max-width: 575px) {
            .brand-full {
                display: none;
            }
            .brand-mobile {
                display: inline;
            }
            .dock-header {
                top: 10px;
            }
            .dock-nav {
                border-radius: 30px;
                padding: 6px 12px;
                margin: 0 12px;
            }
        }

        @media (max-width: 991.98px) {
            .dock-nav .navbar-collapse {
                background: rgba(18, 18, 18, 0.98);
                border-radius: 24px;
                padding: 16px 14px;
                margin-top: 10px;
                border: 1px solid rgba(255, 255, 255, 0.08);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.22);
            }
            .dock-nav .navbar-nav {
                margin-bottom: 8px;
            }
            .dock-nav .nav-cta {
                margin-left: 0;
                display: inline-flex;
            }
        }

        /* ===== Hero ===== */
        .hero {
            min-height: 92vh;
            display: flex;
            align-items: center;
            padding: 150px 0 100px;
            background: #111;
            color: #fff;
            position: relative;
            overflow: hidden;
            background-image: radial-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px);
            background-size: 26px 26px;
        }

        .hero::before {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 2px;
            background: repeating-linear-gradient(90deg, var(--color-primary) 0 20px, transparent 20px 45px);
            opacity: 0.5;
            pointer-events: none;
        }

        .hero-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(205, 255, 48, 0.14);
            border: 1px solid rgba(205, 255, 48, 0.5);
            color: var(--color-primary);
            border-radius: 999px;
            padding: 6px 16px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .hero h1 {
            color: #fff;
        }

        .hero h1 .neon-word {
            color: var(--color-primary);
        }

        .hero-lead {
            font-size: 18px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.78);
            max-width: 520px;
            margin: 26px 0 30px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
            margin-bottom: 28px;
        }

        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 22px;
            color: rgba(255, 255, 255, 0.66);
            font-size: 14px;
        }

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

        .hero-trust i {
            color: var(--color-primary);
        }

        .hero-visual {
            position: relative;
            border-radius: 28px;
            overflow: hidden;
            min-height: 500px;
            height: 100%;
            border: 1px solid rgba(255, 255, 255, 0.12);
            background: #1a1a1a;
            background-image: linear-gradient(135deg, rgba(15, 15, 15, 0.78), rgba(15, 15, 15, 0.35)), url("/assets/images/backpic/back-2.webp");
            background-size: cover;
            background-position: center;
            box-shadow: 0 30px 70px rgba(0, 0, 0, 0.28);
            display: flex;
            align-items: flex-end;
        }

        .hero-visual-overlay-grad {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.74));
            pointer-events: none;
        }

        .hero-player {
            position: relative;
            z-index: 2;
            margin: 28px;
            padding: 24px;
            width: 100%;
            border-radius: var(--radius-lg);
            background: rgba(12, 12, 12, 0.82);
            border: 1px solid rgba(255, 255, 255, 0.12);
            box-shadow: 0 18px 40px rgba(0, 0, 0, 0.22);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }

        .hero-player-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.72);
            margin-bottom: 16px;
        }

        .live-badge {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            color: var(--color-primary);
            font-weight: 600;
        }

        .live-dot {
            width: 9px;
            height: 9px;
            border-radius: 50%;
            background: var(--color-primary);
            position: relative;
            animation: pulse-dot 1.8s infinite;
        }

        @keyframes pulse-dot {
            0% {
                box-shadow: 0 0 0 0 rgba(205, 255, 48, 0.7);
            }
            70% {
                box-shadow: 0 0 0 10px rgba(205, 255, 48, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(205, 255, 48, 0);
            }
        }

        .waveform-canvas {
            width: 100%;
            height: 76px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.045);
            margin-bottom: 15px;
        }

        .player-track {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 12px;
            background: rgba(255, 255, 255, 0.045);
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

        .player-track__cover {
            width: 44px;
            height: 44px;
            border-radius: 9px;
            background: var(--color-accent-electric);
            object-fit: cover;
            flex: 0 0 auto;
        }

        .player-track__info {
            flex: 1;
        }

        .player-track__info strong {
            font-size: 15px;
            color: #fff;
            display: block;
            line-height: 1.3;
        }

        .player-track__info span {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
        }

        .player-track__status {
            color: var(--color-primary);
            font-size: 22px;
        }

        .hero-meta-bars {
            display: flex;
            align-items: flex-end;
            gap: 2px;
            height: 22px;
        }

        .hero-meta-bars i {
            width: 3px;
            background: var(--color-primary);
            border-radius: 2px;
        }

        @media (max-width: 991px) {
            .hero {
                padding: 130px 0 70px;
            }
            .hero-visual {
                min-height: 440px;
            }
        }

        /* ===== Pain Section ===== */
        .pain-section {
            background: var(--color-bg);
        }

        .section-head {
            margin-bottom: 50px;
            max-width: 760px;
        }

        .section-head.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-head h2 {
            margin-bottom: 18px;
        }

        .section-head .section-desc {
            color: var(--color-ink-soft);
            font-size: 17px;
            margin: 18px 0 0;
        }

        .sec-tag {
            display: inline-block;
            background: rgba(205, 255, 48, 0.35);
            color: var(--color-ink);
            font-weight: 700;
            font-size: 13px;
            letter-spacing: 0.08em;
            padding: 5px 15px;
            border-radius: 999px;
            margin-bottom: 18px;
        }

        .sec-tag.light {
            background: rgba(205, 255, 48, 0.14);
            color: var(--color-primary);
            border: 1px solid rgba(205, 255, 48, 0.34);
        }

        .pain-stack {
            display: flex;
            flex-direction: column;
            gap: 22px;
        }

        .pain-card {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-lg);
            padding: 30px 36px 30px 30px;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 22px;
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
            position: relative;
        }

        .pain-card::after {
            content: "";
            position: absolute;
            left: 26px;
            right: 26px;
            bottom: -1px;
            height: 3px;
            border-radius: 3px;
            background: linear-gradient(90deg, var(--color-warning-accent), transparent 65%);
            opacity: 0;
            transition: opacity 0.2s ease;
        }

        .pain-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lift);
            border-color: rgba(205, 255, 48, 0.85);
        }

        .pain-card:hover::after {
            opacity: 1;
        }

        .pain-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1px solid rgba(255, 90, 54, 0.28);
            background: rgba(255, 90, 54, 0.08);
            color: #E34726;
            font-weight: 650;
            font-size: 13px;
            border-radius: 999px;
            padding: 5px 13px;
            white-space: nowrap;
            flex: 0 0 auto;
        }

        .pain-copy {
            flex: 1 1 320px;
        }

        .pain-copy h3 {
            font-size: 22px;
            margin-bottom: 4px;
        }

        .pain-arrow {
            width: 46px;
            height: 46px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 1.5px solid var(--color-line);
            color: var(--color-ink);
            font-size: 17px;
            flex: 0 0 auto;
            transition: all 0.2s ease;
        }

        .pain-arrow:hover {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: var(--color-primary-ink);
            transform: translateX(4px);
        }

        @media (max-width: 768px) {
            .pain-card {
                padding: 24px;
            }
            .pain-copy h3 {
                font-size: 20px;
            }
        }

        /* ===== Solution Section ===== */
        .solution-section {
            background: #ffffff;
            border-top: 1px solid var(--color-line);
            border-bottom: 1px solid var(--color-line);
        }

        .solution-text-list {
            display: grid;
            gap: 22px;
            margin: 26px 0 30px;
        }

        .solution-text-list li {
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }

        .sol-index {
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: rgba(205, 255, 48, 0.38);
            color: var(--color-primary-ink);
            font-weight: 800;
            font-size: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex: 0 0 auto;
        }

        .sol-item h3 {
            font-size: 19px;
            margin-bottom: 4px;
        }

        .sol-item p {
            margin: 0;
            color: var(--color-ink-soft);
            font-size: 15px;
            line-height: 1.7;
        }

        .workspace-panel {
            background: #141414;
            border-radius: 26px;
            padding: 18px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 30px 80px rgba(0, 0, 0, 0.2);
            color: #fff;
        }

        .workspace-top {
            display: flex;
            align-items: center;
            gap: 10px;
            padding-bottom: 12px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.09);
            margin-bottom: 16px;
        }

        .ws-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
        }

        .ws-dot-red {
            background: #FF5F57;
        }

        .ws-dot-yellow {
            background: #FEBC2E;
        }

        .ws-dot-green {
            background: #28C840;
        }

        .ws-search {
            flex: 1;
            margin-left: 10px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 999px;
            padding: 7px 16px;
            color: rgba(255, 255, 255, 0.45);
            font-size: 13px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .ws-body {
            display: grid;
            grid-template-columns: 1.05fr 0.95fr;
            gap: 16px;
        }

        @media (max-width: 560px) {
            .ws-body {
                grid-template-columns: 1fr;
            }
        }

        .ws-playlist {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 18px;
            padding: 10px;
        }

        .ws-section-label {
            font-size: 12px;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            color: rgba(255, 255, 255, 0.4);
            padding: 8px 6px 6px;
        }

        .ws-track {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 8px;
            border-radius: 12px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            transition: background 0.2s ease;
        }

        .ws-track.on {
            background: rgba(205, 255, 48, 0.08);
        }

        .ws-track-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: var(--color-accent-electric);
            flex: 0 0 auto;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: #fff;
            object-fit: cover;
        }

        .ws-track-name {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            flex: 1;
        }

        .ws-track-bpm {
            font-size: 12px;
            color: var(--color-primary);
        }

        .ws-meter {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 18px;
            padding: 12px;
            position: relative;
        }

        .ws-meter-bars {
            height: 90px;
            background: repeating-linear-gradient(90deg, rgba(205, 255, 48, 0.55) 0 3px, transparent 3px 6px);
            border-radius: 12px;
            margin-bottom: 8px;
            background-image: repeating-linear-gradient(90deg, rgba(205, 255, 48, 0.25) 0 3px, transparent 3px 6px);
            position: relative;
        }

        .ws-meter-bars::after {
            content: "";
            position: absolute;
            left: 12%;
            right: 2%;
            top: 20%;
            bottom: 20%;
            background: linear-gradient(90deg, transparent, rgba(205, 255, 48, 0.92), transparent 70%);
            border-radius: 4px;
            filter: blur(1px);
        }

        .ws-status {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.6);
        }

        .ws-status strong {
            color: var(--color-primary);
        }

        /* ===== Data / Evidence Section ===== */
        .data-section {
            background: #111;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .data-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
            background-size: 56px 56px;
            pointer-events: none;
        }

        .data-section h2 {
            color: #fff;
        }

        .data-section .section-desc {
            color: rgba(255, 255, 255, 0.7);
        }

        .data-track {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
            position: relative;
            z-index: 1;
        }

        @media (max-width: 992px) {
            .data-track {
                grid-template-columns: repeat(2, 1fr);
            }
        }

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

        .data-unit {
            background: rgba(255, 255, 255, 0.055);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 28px 26px;
            transition: transform 0.25s, background 0.25s;
            border-top: 3px solid var(--color-primary);
        }

        .data-unit:hover {
            transform: translateY(-5px);
            background: rgba(255, 255, 255, 0.09);
        }

        .unit-label {
            font-size: 13px;
            color: var(--color-primary);
            letter-spacing: 0.05em;
            font-weight: 750;
            margin-bottom: 14px;
        }

        .unit-number {
            font-size: clamp(34px, 4vw, 50px);
            font-weight: 800;
            letter-spacing: -0.03em;
            line-height: 1.1;
            color: #fff;
            margin-bottom: 8px;
        }

        .unit-number .num-unit {
            color: var(--color-primary);
            font-size: 0.55em;
            margin-left: 4px;
        }

        .unit-desc {
            color: rgba(255, 255, 255, 0.68);
            font-size: 15px;
            line-height: 1.6;
            margin-bottom: 10px;
        }

        .unit-note {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        .scale-divider {
            height: 6px;
            margin: 40px 0 20px;
            background-image: repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.55) 0 2px, transparent 2px 18px);
            position: relative;
            z-index: 1;
        }

        .scale-divider::before {
            content: "▲";
            position: absolute;
            left: 0;
            top: -15px;
            color: var(--color-primary);
            font-size: 10px;
        }

        .data-note {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
            position: relative;
            z-index: 1;
        }

        /* ===== Testimonials ===== */
        .testi-section {
            background: var(--color-bg);
        }

        .testi-card {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-lg);
            padding: 30px 32px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }

        .testi-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lift);
        }

        .testi-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 18px;
        }

        .testi-avatar {
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: rgba(205, 255, 48, 0.5);
            color: var(--color-ink);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            flex: 0 0 auto;
        }

        .testi-user strong {
            display: block;
            line-height: 1.35;
        }

        .testi-user span {
            font-size: 13px;
            color: var(--color-ink-soft);
        }

        .testi-stars {
            color: #F6C33C;
            font-size: 14px;
            letter-spacing: 2px;
            margin-left: auto;
        }

        .testi-text {
            font-size: 17px;
            line-height: 1.85;
            margin: 0 0 16px;
            color: #2a2a2a;
        }

        .testi-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            background: rgba(122, 92, 255, 0.09);
            border: 1px solid rgba(122, 92, 255, 0.22);
            color: #5A45C8;
            border-radius: 999px;
            padding: 4px 12px;
        }

        @media (max-width: 991px) {
            .testi-masonry .testi-card {
                margin-top: 0 !important;
                margin-bottom: 20px;
            }
        }

        /* ===== News / CMS Section ===== */
        .news-section {
            background: #ffffff;
            border-top: 1px solid var(--color-line);
        }

        .news-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }

        .news-header .all-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--color-ink-soft);
            font-weight: 600;
            font-size: 15px;
            border-bottom: 2px solid rgba(205, 255, 48, 0.6);
            padding-bottom: 4px;
        }

        .news-header .all-link:hover {
            color: var(--color-ink);
        }

        .news-card {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            height: 100%;
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }

        .news-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lift);
            border-color: rgba(205, 255, 48, 0.72);
        }

        .news-thumb {
            display: block;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #e6e6e0;
            position: relative;
        }

        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

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

        .thumb-fallback {
            background: repeating-linear-gradient(45deg, rgba(205, 255, 48, 0.45) 0 12px, transparent 12px 24px);
        }

        .thumb-fallback::after {
            content: "B365";
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 30px;
            font-weight: 800;
            color: var(--color-ink);
            letter-spacing: -0.03em;
        }

        .news-body {
            padding: 22px 22px 24px;
        }

        .news-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            color: var(--color-ink-soft);
            font-size: 13px;
            margin-bottom: 12px;
        }

        .meta-cat {
            display: inline-block;
            font-weight: 650;
            background: rgba(205, 255, 48, 0.42);
            color: #161F00;
            border-radius: 999px;
            padding: 3px 12px;
        }

        .news-body h3 {
            font-size: 20px;
            line-height: 1.5;
            margin-bottom: 10px;
        }

        .news-body h3 a {
            color: var(--color-ink);
        }

        .news-body h3 a:hover {
            color: #3d4c00;
        }

        .news-body p {
            font-size: 15px;
            color: var(--color-ink-soft);
            line-height: 1.75;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .read-link {
            font-size: 14px;
            font-weight: 650;
            color: var(--color-ink);
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }

        .read-link:hover {
            color: #4a6400;
        }

        .read-link i {
            font-size: 13px;
            transition: transform 0.2s;
        }

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

        .empty-news {
            border: 2px dashed var(--color-line);
            border-radius: var(--radius-lg);
            background: #fbfbf7;
            padding: 70px 20px;
            text-align: center;
        }

        .empty-news i {
            font-size: 38px;
            color: var(--color-primary);
            margin-bottom: 18px;
        }

        .empty-news h3 {
            margin-bottom: 12px;
        }

        .empty-news p {
            max-width: 520px;
            margin: 0 auto 24px;
            color: var(--color-ink-soft);
        }

        /* ===== Final CTA ===== */
        .cta-section {
            background:
                linear-gradient(135deg, rgba(12, 12, 12, 0.92), rgba(12, 12, 12, 0.72)),
                url("/assets/images/backpic/back-1.png") center/cover no-repeat;
            color: #fff;
            text-align: center;
            padding: 130px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 3px;
            background: repeating-linear-gradient(90deg, var(--color-primary), transparent 24px);
            opacity: 0.45;
        }

        .cta-inner {
            max-width: 820px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }

        .cta-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1px solid rgba(205, 255, 48, 0.55);
            color: var(--color-primary);
            border-radius: 999px;
            padding: 7px 18px;
            font-weight: 650;
            font-size: 14px;
            background: rgba(205, 255, 48, 0.08);
            margin-bottom: 22px;
        }

        .cta-section h2 {
            color: #fff;
            font-size: clamp(34px, 5vw, 60px);
            margin-bottom: 20px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.78);
            font-size: 18px;
            line-height: 1.8;
            margin-bottom: 34px;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 14px;
        }

        .btn-cta {
            font-size: 18px;
            padding: 16px 40px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0d0d0d;
            color: rgba(255, 255, 255, 0.72);
            padding: 82px 0 0;
            position: relative;
        }

        .footer-wave {
            height: 2px;
            margin-bottom: 52px;
            background: repeating-linear-gradient(90deg, rgba(205, 255, 48, 0.6) 0 8px, transparent 8px 20px);
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 9px;
            color: #fff;
            font-weight: 800;
            font-size: 20px;
            margin-bottom: 18px;
            letter-spacing: -0.01em;
        }

        .footer-brand .brand-badge {
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: var(--color-primary);
            color: #161F00;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            flex: 0 0 auto;
        }

        .site-footer p {
            color: rgba(255, 255, 255, 0.56);
            font-size: 14px;
            line-height: 1.85;
            max-width: 340px;
        }

        .site-footer h4 {
            font-size: 16px;
            color: #fff;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
        }

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

        .footer-bottom {
            margin-top: 50px;
            padding: 18px 0 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.09);
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 10px;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.45);
        }

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

        .footer-info-badge {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.42);
            font-size: 12px;
            margin-top: 18px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            background: rgba(255, 255, 255, 0.02);
            border-radius: 999px;
            padding: 5px 12px;
        }

        @media (max-width: 768px) {
            .site-footer {
                padding-top: 60px;
            }
            .footer-col {
                margin-bottom: 30px;
            }
        }

        @media (max-width: 576px) {
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: category1 */
:root {
            --color-bg: #F7F7F2;
            --color-surface: #FFFFFF;
            --color-ink: #141414;
            --color-ink-soft: #4F4F4F;
            --color-line: rgba(20, 20, 20, 0.1);
            --color-primary: #CDFF30;
            --color-primary-ink: #121A00;
            --color-accent-electric: #7A5CFF;
            --color-warning-accent: #FF5A36;
            --radius-lg: 22px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 6px rgba(20, 20, 20, 0.05);
            --shadow-md: 0 12px 28px rgba(20, 20, 20, 0.08);
            --shadow-lift: 0 20px 40px rgba(20, 20, 20, 0.12);
            --space-section: clamp(64px, 10vw, 110px);
        }

        /* reset & base */
        *,
        *:before,
        *:after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            background: var(--color-bg);
            color: var(--color-ink);
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        button {
            border: none;
            background: none;
        }
        :focus-visible {
            outline: 3px solid var(--color-primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

        /* global container */
        .container {
            max-width: 1320px;
            padding-left: 20px;
            padding-right: 20px;
        }
        @media (min-width: 576px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
        }
        @media (min-width: 1400px) {
            .container {
                max-width: 1320px;
            }
        }

        /* section spacing */
        .section-lg {
            padding: var(--space-section) 0;
        }

        /* floating dock */
        .dock-header {
            position: fixed;
            top: 18px;
            left: 0;
            right: 0;
            z-index: 1080;
            pointer-events: none;
            padding: 0 16px;
        }
        .dock-header .dock-nav {
            pointer-events: auto;
            margin: 0 auto;
            max-width: 1180px;
            background: rgba(20, 20, 20, 0.92);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 999px;
            padding: 8px 22px;
            box-shadow: 0 18px 40px rgba(0, 0, 0, 0.18);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            min-height: 60px;
        }
        .dock-nav .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 6px 0;
            margin-right: 20px;
            color: #fff;
            font-size: 18px;
            font-weight: 750;
            letter-spacing: -0.01em;
        }
        .dock-nav .navbar-brand .brand-mark {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #141414;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            flex-shrink: 0;
        }
        .dock-nav .navbar-brand .brand-mobile {
            display: none;
        }
        .dock-nav .nav-link {
            color: rgba(255, 255, 255, 0.78);
            font-size: 15px;
            padding: 10px 16px !important;
            border-radius: 999px;
            letter-spacing: 0.01em;
            position: relative;
            font-weight: 450;
        }
        .dock-nav .nav-link:hover {
            color: var(--color-primary);
        }
        .dock-nav .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }
        .dock-nav .nav-link.active:after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 18px;
            right: 18px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 999px;
        }
        .dock-nav .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--color-primary);
            color: var(--color-primary-ink);
            border-radius: 999px;
            padding: 9px 20px;
            font-size: 14px;
            font-weight: 650;
            border: 1px solid transparent;
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .dock-nav .nav-cta:hover {
            background: #141414;
            border-color: var(--color-primary);
            color: var(--color-primary);
        }
        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: 999px;
            color: #fff;
            min-width: 46px;
            height: 42px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }
        .navbar-toggler:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }
        .navbar-toggler:focus {
            box-shadow: none;
        }
        @media (max-width: 991.98px) {
            .dock-header {
                top: 12px;
            }
            .dock-header .dock-nav {
                border-radius: 999px;
                padding: 6px 16px;
                min-height: 56px;
            }
            .dock-nav .navbar-brand {
                font-size: 18px;
            }
            .dock-nav .navbar-collapse {
                background: rgba(20, 20, 20, 0.98);
                border: 1px solid rgba(255, 255, 255, 0.08);
                border-radius: 24px;
                margin-top: 18px;
                padding: 18px 18px 14px;
            }
            .dock-nav .nav-link.active:after {
                display: none;
            }
            .dock-nav .nav-link {
                padding: 12px 14px !important;
            }
            .dock-nav .nav-cta {
                margin: 8px 0 6px;
                justify-content: center;
            }
        }
        @media (max-width: 575.98px) {
            .dock-nav .navbar-brand .brand-full {
                display: none;
            }
            .dock-nav .navbar-brand .brand-mobile {
                display: inline-block;
            }
        }

        /* hero */
        .style-hero {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            padding-top: 140px;
            padding-bottom: 56px;
            background: #101010;
            color: #fff;
            overflow: hidden;
        }
        .style-hero:before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url("/assets/images/backpic/back-1.png");
            background-size: cover;
            background-position: center;
            opacity: 0.35;
            mix-blend-mode: luminosity;
        }
        .style-hero:after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(16,16,16,0.1) 0%, rgba(16,16,16,0.75) 80%, #F7F7F2 100%);
        }
        .style-hero .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
        }
        .style-hero .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-primary);
            color: #141414;
            font-size: 13px;
            font-weight: 700;
            border-radius: 999px;
            padding: 5px 14px;
            letter-spacing: 0.02em;
        }
        .style-hero h1 {
            font-size: clamp(42px, 5.8vw, 72px);
            font-weight: 800;
            line-height: 1.12;
            letter-spacing: -0.02em;
            margin: 12px 0 18px;
            max-width: 940px;
        }
        .style-hero h1 .outline-word {
            color: transparent;
            -webkit-text-stroke: 1.5px var(--color-primary);
        }
        .style-hero .lead {
            font-size: clamp(16px, 1.4vw, 19px);
            color: rgba(255, 255, 255, 0.84);
            max-width: 560px;
            margin-bottom: 22px;
        }
        .style-hero .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 26px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.72);
        }
        .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 999px;
            padding: 4px 14px;
        }
        .hero-meta i {
            color: var(--color-primary);
        }
        .style-hero .hero-indicator {
            position: absolute;
            right: 4%;
            top: 50%;
            transform: translateY(-50%);
            z-index: 2;
            width: 240px;
            filter: drop-shadow(0 0 18px rgba(0, 0, 0, 0.2));
            display: none;
        }
        @media (min-width: 1200px) {
            .style-hero .hero-indicator {
                display: block;
            }
        }
        .hero-indicator .wave-box {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            backdrop-filter: blur(6px);
        }
        .hero-indicator .wave-box .wave-label {
            color: rgba(255, 255, 255, 0.65);
            font-size: 12px;
            letter-spacing: 0.2em;
            text-transform: uppercase;
            margin-bottom: 10px;
        }
        .wave-visual {
            display: flex;
            align-items: center;
            gap: 4px;
            height: 52px;
        }
        .wave-visual span {
            width: 4px;
            background: var(--color-primary);
            border-radius: 999px;
            opacity: 0.85;
            animation: pulse 1.2s infinite alternate ease-in-out;
        }
        .wave-visual span:nth-child(1) {
            height: 16px;
        }
        .wave-visual span:nth-child(2) {
            height: 34px;
            animation-delay: 0.08s;
        }
        .wave-visual span:nth-child(3) {
            height: 50px;
            animation-delay: 0.16s;
        }
        .wave-visual span:nth-child(4) {
            height: 28px;
            animation-delay: 0.24s;
        }
        .wave-visual span:nth-child(5) {
            height: 46px;
            animation-delay: 0.32s;
        }
        .wave-visual span:nth-child(6) {
            height: 24px;
            animation-delay: 0.4s;
        }
        .wave-visual span:nth-child(7) {
            height: 36px;
            animation-delay: 0.48s;
        }
        @keyframes pulse {
            0% {
                transform: scaleY(0.7);
            }
            100% {
                transform: scaleY(1.15);
            }
        }
        @media (max-width: 767px) {
            .style-hero {
                min-height: 82vh;
                padding-top: 130px;
                padding-bottom: 48px;
            }
        }

        /* divider band */
        .meta-strip {
            background: var(--color-primary);
            color: #141414;
            padding: 18px 0;
            overflow: hidden;
        }
        .meta-strip .marquee {
            display: flex;
            align-items: center;
            gap: 44px;
            white-space: nowrap;
            font-size: 14px;
            font-weight: 650;
            animation: slideText 30s linear infinite;
            width: max-content;
        }
        .meta-strip i {
            margin-right: 6px;
        }
        @keyframes slideText {
            0% {
                transform: translateX(0);
            }
            100% {
                transform: translateX(-50%);
            }
        }

        /* intro block */
        .intro-section {
            padding-top: var(--space-section);
            padding-bottom: 20px;
        }
        .intro-section .section-overline {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            color: var(--color-primary-ink);
            background: rgba(205, 255, 48, 0.6);
            padding: 5px 14px;
            border-radius: 999px;
            letter-spacing: 0.1em;
        }
        .intro-section h2 {
            font-size: clamp(28px, 3.4vw, 42px);
            font-weight: 750;
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin: 18px 0 14px;
        }
        .intro-section .lead {
            color: var(--color-ink-soft);
            font-size: 17px;
            max-width: 720px;
            line-height: 1.9;
        }
        .spec-grid {
            margin-top: 32px;
        }
        .spec-tile {
            border-left: 3px solid var(--color-primary);
            background: var(--color-surface);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            padding: 18px 22px;
            box-shadow: var(--shadow-sm);
            height: 100%;
            border-top: 1px solid var(--color-line);
            border-right: 1px solid var(--color-line);
            border-bottom: 1px solid var(--color-line);
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }
        .spec-tile:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .spec-tile .num {
            font-size: 32px;
            font-weight: 800;
            line-height: 1;
            color: var(--color-ink);
            font-variant-numeric: tabular-nums;
            letter-spacing: -0.02em;
        }
        .spec-tile .num small {
            font-size: 14px;
            color: var(--color-ink-soft);
            font-weight: 450;
            margin-left: 4px;
        }
        .spec-tile p {
            font-size: 13px;
            color: var(--color-ink-soft);
            margin-bottom: 0;
            margin-top: 8px;
            line-height: 1.5;
        }

        /* style library cards */
        .library-section {
            padding: 40px 0 var(--space-section);
        }
        .library-head {
            margin-bottom: 34px;
        }
        .library-head h2 {
            font-size: clamp(28px, 3vw, 40px);
            font-weight: 780;
        }
        .library-head .head-sub {
            font-size: 16px;
            color: var(--color-ink-soft);
        }
        .style-card {
            display: flex;
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-line);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            margin-bottom: 30px;
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }
        .style-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lift);
            border-color: var(--color-primary);
        }
        .style-card .card-img-col {
            flex: 0 0 44%;
            position: relative;
            min-height: 230px;
            background: #1d1d1d;
        }
        .style-card .card-img-col img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }
        .style-card .card-img-col .tag {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
            background: var(--color-primary);
            color: var(--color-primary-ink);
            font-size: 12px;
            font-weight: 700;
            border-radius: 999px;
            padding: 4px 12px;
        }
        .style-card .card-body-custom {
            flex: 1;
            padding: 30px 32px;
            display: flex;
            flex-direction: column;
        }
        .style-card .card-number {
            color: var(--color-line);
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 0.2em;
        }
        .style-card h3 {
            font-size: clamp(22px, 2vw, 28px);
            font-weight: 760;
            line-height: 1.25;
            margin: 4px 0 10px;
        }
        .style-card .card-desc {
            color: var(--color-ink-soft);
            font-size: 15px;
            line-height: 1.85;
            margin-bottom: 16px;
        }
        .style-card .bean-row {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 14px;
        }
        .bean-row .badge-beat {
            background: rgba(122, 92, 255, 0.08);
            color: var(--color-accent-electric);
            border: 1px solid rgba(122, 92, 255, 0.2);
            font-weight: 500;
            border-radius: 999px;
            font-size: 12px;
            padding: 4px 12px;
        }
        .bean-row .badge-beat.warm {
            background: rgba(255, 90, 54, 0.05);
            color: var(--color-warning-accent);
            border-color: rgba(255, 90, 54, 0.2);
        }
        .style-card .card-foot {
            margin-top: auto;
        }
        .style-card .card-foot a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 1.5px solid var(--color-ink);
            border-radius: 999px;
            padding: 8px 20px;
            font-size: 14px;
            font-weight: 650;
            color: var(--color-ink);
            transition: all 0.2s ease;
        }
        .style-card .card-foot a:hover {
            background: var(--color-ink);
            color: #fff;
        }
        .style-card .card-foot a .line-btn-ball {
            display: inline-block;
            width: 18px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 9px;
        }
        @media (max-width: 991.98px) {
            .style-card {
                flex-direction: column;
            }
            .style-card .card-img-col {
                flex-basis: 220px;
                min-height: 220px;
                position: relative;
            }
            .style-card .card-img-col img {
                position: absolute;
            }
        }
        @media (max-width: 575.98px) {
            .style-card .card-body-custom {
                padding: 24px;
            }
        }
        .style-card.reverse .card-img-col {
            order: 2;
        }
        .style-card.reverse .card-body-custom {
            order: 1;
        }
        @media (max-width: 991.98px) {
            .style-card.reverse .card-img-col {
                order: 1;
            }
            .style-card.reverse .card-body-custom {
                order: 2;
            }
        }

        /* filter mock / tool panel */
        .tool-panel {
            margin: 50px 0 10px;
            background: #141414;
            border-radius: var(--radius-lg);
            padding: 42px 0;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .tool-panel:after {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url("/assets/images/backpic/back-2.webp");
            background-size: cover;
            background-position: center;
            opacity: 0.16;
            pointer-events: none;
        }
        .tool-panel .container {
            position: relative;
            z-index: 1;
        }
        .tool-panel .panel-label {
            color: var(--color-primary);
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.24em;
            text-transform: uppercase;
        }
        .tool-panel h2 {
            color: #fff;
            font-size: clamp(26px, 3vw, 38px);
            font-weight: 780;
            letter-spacing: -0.01em;
            max-width: 560px;
            margin: 8px 0 22px;
        }
        .filter-demo {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 24px;
            margin-top: 26px;
        }
        .filter-demo .quick-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .quick-tags .q-tag {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: rgba(255, 255, 255, 0.8);
            border-radius: 999px;
            padding: 6px 14px;
            font-size: 13px;
            transition: all 0.16s ease;
        }
        .quick-tags .q-tag.active,
        .quick-tags .q-tag:hover {
            background: var(--color-primary);
            color: var(--color-primary-ink);
            border-color: var(--color-primary);
            font-weight: 650;
        }
        .filter-demo .mock-eq {
            display: flex;
            gap: 8px;
            align-items: flex-end;
            height: 42px;
            margin-top: 20px;
        }
        .mock-eq span {
            background: var(--color-accent-electric);
            width: 4px;
            border-radius: 999px;
            opacity: 0.7;
            height: 30px;
        }
        .mock-eq span:nth-child(odd) {
            background: var(--color-primary);
            height: 20px;
        }
        .mock-eq span:nth-child(3n) {
            height: 42px;
        }
        .mock-eq span:nth-child(4n) {
            height: 24px;
        }
        .filter-note {
            color: rgba(255, 255, 255, 0.66);
            font-size: 14px;
            margin-top: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* latest beat strip */
        .latest-strip {
            padding: var(--space-section) 0 60px;
        }
        .latest-strip .section-head {
            display: flex;
            flex-wrap: wrap;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 28px;
        }
        .latest-strip .section-head .head-title h2 {
            font-size: clamp(26px, 2.8vw, 38px);
            font-weight: 760;
            margin: 0;
        }
        .latest-strip .section-head .head-title p {
            color: var(--color-ink-soft);
            margin: 8px 0 0;
            font-size: 15px;
        }
        .latest-cards .latest-card {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 100%;
            box-shadow: var(--shadow-sm);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            display: flex;
            flex-direction: column;
        }
        .latest-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lift);
        }
        .latest-card .thumb {
            background: #e8e8e0;
            aspect-ratio: 16 / 9;
            position: relative;
            overflow: hidden;
        }
        .latest-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .latest-card .thumb .card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            font-size: 12px;
            background: rgba(16, 16, 16, 0.72);
            color: #fff;
            backdrop-filter: blur(4px);
            border-radius: 999px;
            padding: 3px 12px;
            font-weight: 500;
        }
        .latest-card .card-text {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .latest-card .meta-line {
            font-size: 12px;
            color: var(--color-ink-soft);
            margin-bottom: 8px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .latest-card h3 {
            font-size: 18px;
            line-height: 1.45;
            font-weight: 680;
            margin: 4px 0 8px;
            letter-spacing: -0.01em;
        }
        .latest-card p {
            font-size: 14px;
            color: var(--color-ink-soft);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }
        .latest-card .read-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--color-ink);
            font-weight: 650;
            font-size: 14px;
            border-bottom: 2px solid var(--color-primary);
            width: fit-content;
            padding-bottom: 2px;
        }
        .latest-card .read-more:hover {
            color: var(--color-primary-ink);
        }
        .empty-wrapper {
            border: 1.5px dashed var(--color-line);
            border-radius: var(--radius-lg);
            background: rgba(255, 255, 255, 0.5);
            padding: 44px 20px;
            text-align: center;
            color: var(--color-ink-soft);
            font-size: 14px;
        }
        .empty-wrapper i {
            font-size: 28px;
            color: var(--color-primary);
            display: block;
            margin-bottom: 8px;
        }

        /* faq */
        .faq-classic {
            padding: 10px 0 60px;
        }
        .faq-classic .faq-title-wrap {
            margin-bottom: 36px;
        }
        .faq-classic .faq-title-wrap h2 {
            font-weight: 760;
            font-size: clamp(26px, 3vw, 40px);
            margin-bottom: 8px;
            letter-spacing: -0.02em;
        }
        .faq-item {
            border-bottom: 1px solid var(--color-line);
        }
        .faq-item .faq-q {
            padding: 20px 4px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-weight: 650;
            font-size: 16px;
            cursor: pointer;
            transition: color 0.2s ease;
            margin: 0;
        }
        .faq-item .faq-q:hover {
            color: var(--color-primary-ink);
        }
        .faq-item .faq-q .icon-plus {
            width: 26px;
            height: 26px;
            border: 1px solid var(--color-line);
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--color-ink);
            transition: all 0.25s ease;
            flex-shrink: 0;
        }
        .faq-item.active .faq-q .icon-plus {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: var(--color-primary-ink);
            transform: rotate(45deg);
        }
        .faq-item .faq-a {
            display: none;
            padding: 0 24px 24px 4px;
            color: var(--color-ink-soft);
            font-size: 15px;
            max-width: 820px;
            line-height: 1.9;
        }
        .faq-item.active .faq-a {
            display: block;
        }

        /* cta bottom / return home */
        .return-strip {
            padding: 20px 0 70px;
        }
        .return-strip .home-panel {
            background: var(--color-primary);
            border-radius: var(--radius-lg);
            padding: 44px 40px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            color: #141414;
            overflow: hidden;
            position: relative;
        }
        .return-strip .home-panel h2 {
            font-size: clamp(22px, 2.4vw, 30px);
            font-weight: 780;
            margin: 0;
            max-width: 600px;
        }
        .return-strip .home-panel p {
            margin: 6px 0 0;
            color: rgba(20, 20, 20, 0.72);
            font-size: 15px;
        }
        .return-strip .btn-return {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-ink);
            color: var(--color-primary);
            border-radius: 999px;
            padding: 12px 28px;
            font-weight: 720;
            border: 1.5px solid var(--color-ink);
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .return-strip .btn-return:hover {
            background: transparent;
            color: var(--color-ink);
            border-color: var(--color-ink);
        }
        @media (max-width: 520px) {
            .return-strip .home-panel {
                padding: 30px 20px;
            }
        }

        /* footer */
        .site-footer {
            background: #111111;
            color: rgba(255, 255, 255, 0.72);
            padding-top: 64px;
            font-size: 14px;
            position: relative;
            overflow: hidden;
        }
        .footer-wave {
            height: 5px;
            background: linear-gradient(90deg, var(--color-primary), transparent 30%, var(--color-accent-electric) 55%, transparent 70%, var(--color-primary));
            opacity: 0.55;
            margin-bottom: 50px;
            border-radius: 999px;
            width: 70%;
            max-width: 500px;
            margin-left: 4%;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-size: 18px;
            font-weight: 720;
            letter-spacing: -0.01em;
            margin-bottom: 10px;
        }
        .brand-badge {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #141414;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }
        .site-footer p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.58);
            line-height: 1.8;
            max-width: 360px;
        }
        .footer-info-badge {
            display: inline-flex;
            gap: 8px;
            align-items: center;
            border: 1px solid rgba(255, 255, 255, 0.14);
            background: rgba(255, 255, 255, 0.05);
            border-radius: 999px;
            padding: 6px 14px;
            color: rgba(255, 255, 255, 0.78);
            font-size: 13px;
            margin-top: 8px;
        }
        .footer-info-badge i {
            color: var(--color-primary);
        }
        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 650;
            margin-bottom: 12px;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.56);
            font-size: 14px;
            transition: all 0.2s ease;
        }
        .footer-links a:hover {
            color: var(--color-primary);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 46px;
            padding: 24px 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.36);
        }
        @media (max-width: 520px) {
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* small helpers */
        .font-mono {
            font-variant-numeric: tabular-nums;
        }
        .wave-rule {
            height: 26px;
            display: flex;
            align-items: flex-end;
            overflow: hidden;
            gap: 3px;
            margin: 20px 0 0;
        }
        .wave-rule span {
            width: 3px;
            background: var(--color-line);
            height: 14px;
        }
        .wave-rule span:nth-child(even) {
            height: 24px;
            background: var(--color-primary);
        }

/* roulang page: article */
:root {
            --color-bg: #F7F7F2;
            --color-surface: #FFFFFF;
            --color-surface-soft: #F1F1EA;
            --color-ink: #141414;
            --color-ink-soft: #4F4F4F;
            --color-line: rgba(20, 20, 20, .12);
            --color-primary: #CDFF30;
            --color-primary-ink: #1C2A00;
            --color-accent-electric: #7A5CFF;
            --color-warning-accent: #FF5A36;
            --radius-lg: 22px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 4px 12px rgba(20, 20, 20, .05);
            --shadow-md: 0 12px 32px rgba(20, 20, 20, .08);
            --shadow-lift: 0 22px 44px rgba(20, 20, 20, .13);
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-sans);
            background: var(--color-bg);
            color: var(--color-ink);
            line-height: 1.8;
            padding-top: 92px;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--color-ink);
            text-decoration: none;
            transition: color .2s ease, background-color .2s ease, border-color .2s ease;
        }

        a:hover {
            color: var(--color-accent-electric);
        }

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

        button,
        input {
            font-family: inherit;
        }

        ul,
        ol {
            padding-left: 1.3rem;
        }

        .container {
            max-width: 1320px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -.01em;
        }

        .btn {
            border-radius: 999px;
            padding: 12px 26px;
            font-size: 15px;
            font-weight: 700;
            border: 1px solid transparent;
            transition: all .2s ease;
        }

        .btn:focus-visible,
        .nav-link:focus-visible,
        .navbar-toggler:focus-visible,
        a:focus-visible {
            outline: 3px solid var(--color-primary);
            outline-offset: 3px;
        }

        .btn-core {
            background: var(--color-primary);
            color: var(--color-primary-ink);
            border-color: var(--color-primary);
        }

        .btn-core:hover {
            background: var(--color-ink);
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .btn-outline-dark {
            background: transparent;
            border-color: rgba(20, 20, 20, .9);
            color: var(--color-ink);
        }

        .btn-outline-dark:hover {
            background: var(--color-ink);
            color: #fff;
            border-color: var(--color-ink);
        }

        .btn-outline-light {
            background: transparent;
            border-color: rgba(255, 255, 255, .8);
            color: #fff;
        }

        .btn-outline-light:hover {
            background: var(--color-primary);
            color: var(--color-primary-ink);
            border-color: var(--color-primary);
        }

        .btn-sm {
            padding: 8px 20px;
            font-size: 14px;
        }

        .dock-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            padding: 14px 20px 0;
            pointer-events: none;
        }

        .dock-nav {
            max-width: 1180px;
            margin: 0 auto;
            background: #141414;
            border: 1px solid rgba(255, 255, 255, .08);
            box-shadow: 0 14px 36px rgba(20, 20, 20, .18);
            border-radius: 999px;
            min-height: 64px;
            padding: .55rem .75rem;
            pointer-events: auto;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 8px 16px;
            margin: 0;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.01em;
        }

        .navbar-brand:hover {
            color: var(--color-primary);
        }

        .navbar-brand .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--color-primary);
            color: var(--color-primary-ink);
            font-size: 15px;
            flex: 0 0 auto;
        }

        .navbar-brand .brand-full {
            white-space: nowrap;
            line-height: 1.2;
        }

        .navbar-brand .brand-mobile {
            display: none;
        }

        .dock-nav .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, .2);
            border-radius: 999px;
            color: #fff;
            padding: 8px 12px;
            font-size: 18px;
            line-height: 1;
            background: transparent;
        }

        .dock-nav .navbar-toggler:hover {
            background: rgba(255, 255, 255, .12);
            border-color: var(--color-primary);
        }

        .dock-nav .nav-link {
            color: rgba(255, 255, 255, .76);
            font-weight: 600;
            font-size: 15px;
            padding: 8px 18px;
            border-radius: 999px;
            position: relative;
            line-height: 1.6;
        }

        .dock-nav .nav-link::after {
            content: "";
            position: absolute;
            left: 18px;
            right: 18px;
            bottom: 3px;
            height: 2px;
            border-radius: 999px;
            background: var(--color-primary);
            transform: scaleX(0);
            transform-origin: left center;
            transition: transform .25s ease;
        }

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

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

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

        .dock-nav .nav-link.active::after {
            transform: scaleX(1);
            background: var(--color-primary);
        }

        .dock-nav .nav-cta {
            display: inline-flex;
            align-items: center;
            background: var(--color-primary);
            border-radius: 999px;
            padding: 9px 20px;
            color: var(--color-primary-ink);
            font-size: 14px;
            font-weight: 700;
            border: 1px solid var(--color-primary);
            line-height: 1.4;
            margin-left: auto;
            transition: background-color .2s ease, color .2s ease;
        }

        .dock-nav .nav-cta:hover {
            background: #fff;
            color: var(--color-ink);
            border-color: #fff;
        }

        .article-stage {
            padding: 56px 0 20px;
        }

        .article-card-shell {
            background: var(--color-surface);
            border: 1px solid rgba(20, 20, 20, .06);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: clamp(28px, 5vw, 64px);
            margin: 0 auto;
            max-width: 1080px;
        }

        .article-breadcrumb-row {
            display: flex;
            align-items: center;
            font-size: 14px;
            color: var(--color-ink-soft);
            gap: 8px;
            padding-bottom: 28px;
            margin-bottom: 24px;
            border-bottom: 1px dashed rgba(20, 20, 20, .14);
        }

        .article-breadcrumb-row a {
            color: var(--color-ink-soft);
        }

        .article-breadcrumb-row i {
            color: var(--color-accent-electric);
            font-size: 12px;
        }

        .article-title-meta {
            margin-bottom: 22px;
        }

        .article-meta-line {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px 20px;
            margin-bottom: 18px;
        }

        .article-meta-item {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-size: 14px;
            color: var(--color-ink-soft);
            font-weight: 500;
        }

        .article-meta-item.tag {
            background: rgba(205, 255, 48, .18);
            color: #1C2A00;
            border-radius: 999px;
            padding: 5px 14px;
            font-weight: 600;
            border: 1px solid rgba(122, 92, 255, .18);
            line-height: 1.5;
        }

        .article-meta-item i {
            color: var(--color-accent-electric);
        }

        .article-title {
            font-size: clamp(34px, 4.4vw, 58px);
            line-height: 1.22;
            font-weight: 850;
            letter-spacing: -0.025em;
            max-width: 900px;
            margin: 0 0 24px;
        }

        .article-description-lead {
            font-size: 17px;
            line-height: 1.9;
            color: var(--color-ink-soft);
            max-width: 860px;
            margin: 0;
        }

        .article-divider {
            height: 1px;
            background: linear-gradient(90deg, rgba(20, 20, 20, .03) 0%, rgba(20, 20, 20, .13) 20%, rgba(20, 20, 20, .13) 80%, rgba(20, 20, 20, .03) 100%);
            margin: 36px 0 40px;
        }

        .article-body {
            font-size: 17px;
            line-height: 1.95;
            color: #20201D;
            overflow-wrap: break-word;
        }

        .article-body > *:first-child {
            margin-top: 0;
        }

        .article-body > *:last-child {
            margin-bottom: 0;
        }

        .article-body h2 {
            font-size: clamp(24px, 2.2vw, 30px);
            font-weight: 800;
            margin: 2.2rem 0 1.1rem;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--color-line);
            line-height: 1.45;
        }

        .article-body h3 {
            font-size: clamp(19px, 1.6vw, 23px);
            font-weight: 750;
            margin: 1.8rem 0 .8rem;
            color: var(--color-ink);
        }

        .article-body p {
            margin: 0 0 1.4rem;
        }

        .article-body a {
            color: var(--color-accent-electric);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

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

        .article-body blockquote {
            margin: 2rem 0;
            padding: 22px 24px;
            border-left: 4px solid var(--color-primary);
            background: rgba(205, 255, 48, .08);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: var(--color-ink);
            font-size: 17px;
            line-height: 1.85;
        }

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

        .article-body ul,
        .article-body ol {
            margin: 0 0 1.5rem;
        }

        .article-body ul li,
        .article-body ol li {
            margin-bottom: .55rem;
        }

        .article-body img {
            border-radius: var(--radius-md);
            margin: 1.8rem 0;
            box-shadow: var(--shadow-sm);
            width: auto;
            max-width: 100%;
        }

        .article-body figure {
            margin: 2rem 0;
        }

        .article-body figure img {
            margin: 0;
        }

        .article-body figcaption {
            font-size: 13px;
            color: var(--color-ink-soft);
            margin-top: .6rem;
            font-style: normal;
            border-left: 2px solid rgba(20, 20, 20, .35);
            padding-left: 12px;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
            font-size: 15px;
            background: var(--color-surface);
            border-radius: var(--radius-md);
            overflow: hidden;
        }

        .article-body th {
            background: #F3F3EC;
            font-weight: 700;
            text-align: left;
            padding: 12px 16px;
            border: 1px solid #E8E8DF;
        }

        .article-body td {
            padding: 12px 16px;
            border: 1px solid #E8E8DF;
            vertical-align: top;
        }

        .article-body code {
            background: rgba(20, 20, 20, .06);
            padding: .15rem .45rem;
            border-radius: 6px;
            font-size: .9em;
            color: #222;
        }

        .article-body pre {
            background: var(--color-ink);
            color: #E8FED0;
            border-radius: var(--radius-md);
            padding: 20px;
            overflow-x: auto;
            line-height: 1.7;
            margin: 2rem 0;
            border: 1px solid rgba(255, 255, 255, .08);
        }

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

        .article-bottom-nav {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            margin: 46px 0 0;
            padding-top: 26px;
            border-top: 1px solid var(--color-line);
        }

        .article-bottom-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            color: var(--color-ink-soft);
            font-size: 14px;
            border-radius: 999px;
            border: 1px solid transparent;
            padding: 8px 16px;
        }

        .article-bottom-link:hover {
            color: var(--color-ink);
            background: #F4F4ED;
            border-color: var(--color-line);
        }

        .article-not-found {
            padding: 90px 0 110px;
        }

        .empty-panel {
            background: var(--color-surface);
            max-width: 720px;
            margin: 0 auto;
            text-align: center;
            border: 1px dashed rgba(20, 20, 20, .22);
            border-radius: var(--radius-lg);
            padding: 70px 40px;
            box-shadow: var(--shadow-sm);
        }

        .empty-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 66px;
            height: 66px;
            background: rgba(20, 20, 20, .05);
            border-radius: 50%;
            margin-bottom: 22px;
            color: var(--color-warning-accent);
            font-size: 24px;
        }

        .empty-panel h1 {
            font-size: 34px;
            margin: 0 0 10px;
        }

        .empty-panel p {
            color: var(--color-ink-soft);
            font-size: 16px;
            margin-bottom: 28px;
        }

        .related-area {
            padding: 44px 0 72px;
        }

        .section-title-row {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 28px;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: .04em;
            text-transform: none;
            color: var(--color-primary-ink);
            background: var(--color-primary);
            border-radius: 999px;
            padding: 5px 14px;
            margin-bottom: 12px;
        }

        .section-heading {
            font-size: clamp(26px, 3vw, 36px);
            margin: 0;
            font-weight: 800;
        }

        .section-link-all {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-ink-soft);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border: 1px solid transparent;
            padding: 8px 14px;
            border-radius: 999px;
        }

        .section-link-all:hover {
            border-color: var(--color-line);
            color: var(--color-ink);
        }

        .related-card {
            background: var(--color-surface);
            border: 1px solid rgba(20, 20, 20, .07);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            height: 100%;
            transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
        }

        .related-card:hover {
            transform: translateY(-6px);
            border-color: rgba(205, 255, 48, .6);
            box-shadow: var(--shadow-lift);
        }

        .related-card .card-cover {
            aspect-ratio: 16 / 9;
            width: 100%;
            overflow: hidden;
            background: #e8e8df;
            position: relative;
        }

        .related-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .45s ease;
        }

        .related-card:hover .card-cover img {
            transform: scale(1.03);
        }

        .related-card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            flex: 1;
        }

        .card-tag {
            align-self: flex-start;
            background: rgba(205, 255, 48, .25);
            color: #273800;
            border-radius: 999px;
            padding: 4px 12px;
            font-size: 13px;
            font-weight: 700;
            line-height: 1.6;
            border: 1px solid rgba(20, 20, 20, .05);
        }

        .related-card h3 {
            font-size: 20px;
            font-weight: 750;
            line-height: 1.5;
            margin: 0;
        }

        .related-card p {
            color: var(--color-ink-soft);
            font-size: 15px;
            line-height: 1.85;
            margin: 0;
        }

        .card-arrow {
            margin-top: 10px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 700;
            color: var(--color-ink);
        }

        .card-arrow i {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--color-primary);
            color: var(--color-primary-ink);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
        }

        .cta-banner {
            position: relative;
            margin-bottom: 0;
            border-radius: var(--radius-lg);
            overflow: hidden;
            padding: 80px 40px;
            background:
                linear-gradient(180deg, rgba(20, 20, 20, .35), rgba(20, 20, 20, .82)),
                url('/assets/images/backpic/back-2.webp') no-repeat center center / cover;
            color: #fff;
            text-align: center;
            border: 1px solid rgba(255, 255, 255, .08);
            box-shadow: var(--shadow-md);
        }

        .cta-eyebrow {
            display: inline-block;
            color: var(--color-primary);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: .1em;
            margin-bottom: 14px;
            text-transform: none;
        }

        .cta-banner h2 {
            font-size: clamp(30px, 4.5vw, 48px);
            color: #fff;
            margin: 0 0 18px;
            font-weight: 850;
            line-height: 1.25;
        }

        .cta-banner p {
            color: rgba(255, 255, 255, .82);
            font-size: 17px;
            max-width: 720px;
            margin: 0 auto 34px;
            line-height: 1.9;
        }

        .cta-banner .btn {
            margin: 0 8px 12px;
        }

        .site-footer {
            background: #101010;
            color: rgba(255, 255, 255, .68);
            margin-top: 90px;
            position: relative;
            padding: 80px 0 0;
            font-size: 15px;
        }

        .footer-wave {
            height: 2px;
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            background:
                radial-gradient(circle at 10px 1px, rgba(205, 255, 48, .25) 1px, transparent 2px);
            background-size: 28px 4px;
            background-repeat: repeat-x;
        }

        .site-footer .row {
            padding: 40px 0 34px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .footer-col {
            margin-bottom: 26px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 18px;
        }

        .brand-badge {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--color-primary);
            color: var(--color-primary-ink);
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .footer-col p {
            color: rgba(255, 255, 255, .62);
            line-height: 1.9;
            font-size: 14.5px;
        }

        .footer-info-badge {
            display: inline-flex;
            gap: 8px;
            background: rgba(255, 255, 255, .06);
            padding: 8px 14px;
            border-radius: 999px;
            font-size: 13px;
            color: rgba(255, 255, 255, .8);
            border: 1px solid rgba(255, 255, 255, .1);
            margin-top: 8px;
        }

        .footer-info-badge i {
            color: var(--color-primary);
        }

        .site-footer h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 750;
            margin-bottom: 18px;
            line-height: 1.5;
        }

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

        .footer-links li {
            margin-bottom: 11px;
            line-height: 1.6;
        }

        .footer-links a {
            color: rgba(255, 255, 255, .62);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            position: relative;
        }

        .footer-links a::before {
            content: "";
            width: 12px;
            height: 2px;
            background: rgba(205, 255, 48, .5);
            flex: 0 0 auto;
            transition: width .2s ease;
        }

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

        .footer-links a:hover::before {
            width: 22px;
            background: var(--color-primary);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 24px 0 30px;
            font-size: 14px;
            color: rgba(255, 255, 255, .45);
            flex-wrap: wrap;
        }

        .footer-bottom span:last-child {
            color: rgba(255, 255, 255, .35);
        }

        .no-focus {
            display: none;
        }

        @media (max-width: 1199.98px) {
            .dock-nav {
                max-width: 100%;
                border-radius: 36px;
            }

            .dock-header {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        @media (max-width: 991.98px) {
            body {
                padding-top: 82px;
            }

            .dock-header {
                padding: 10px 12px 0;
            }

            .dock-nav {
                min-height: 64px;
                border-radius: 26px;
                padding: .5rem .6rem;
            }

            .dock-nav .navbar-collapse {
                background: #1A1A1A;
                border-radius: 20px;
                margin-top: 10px;
                padding: 12px;
                border: 1px solid rgba(255, 255, 255, .08);
            }

            .dock-nav .navbar-nav {
                margin: 0 !important;
            }

            .dock-nav .nav-link {
                padding: 12px 16px;
                font-size: 16px;
                display: block;
            }

            .dock-nav .nav-link::after {
                left: 16px;
                right: 16px;
            }

            .dock-nav .nav-cta {
                margin-top: 10px !important;
                margin-left: 0;
                justify-content: center;
            }

            .navbar-brand .brand-full {
                display: none;
            }

            .navbar-brand .brand-mobile {
                display: inline;
                font-size: 18px;
                white-space: nowrap;
            }

            .dock-nav .navbar-brand {
                padding-left: 16px;
            }

            .article-card-shell {
                padding: 32px 24px;
            }

            .archive-card {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 767.98px) {
            body {
                padding-top: 78px;
            }

            .article-stage {
                padding: 24px 0 20px;
            }

            .article-card-shell {
                padding: 24px 18px;
                border-radius: 18px;
            }

            .article-breadcrumb-row {
                font-size: 13px;
                padding-bottom: 20px;
            }

            .about-title {
                font-size: 30px;
                line-height: 1.3;
            }

            .article-title {
                font-size: 30px;
                line-height: 1.32;
            }

            .article-meta-line {
                gap: 10px 14px;
            }

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

            .related-area {
                padding-bottom: 48px;
            }

            .section-title-row {
                align-items: flex-start;
                flex-direction: column;
            }

            .cta-banner {
                padding: 52px 20px;
                border-radius: 18px;
            }

            .cta-banner h2 {
                font-size: 30px;
            }

            .site-footer {
                margin-top: 60px;
            }

            .footer-bottom {
                justify-content: center;
                text-align: center;
            }

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

            .dock-nav {
                border-radius: 22px;
            }
        }

        @media (max-width: 520px) {
            .dock-header {
                padding-left: 8px;
                padding-right: 8px;
            }

            .dock-nav {
                padding: .35rem .45rem;
                border-radius: 20px;
            }

            .navbar-brand .brand-mark {
                width: 34px;
                height: 34px;
                font-size: 13px;
            }

            .navbar-brand .brand-mobile {
                font-size: 16px;
            }

            .br-arrow,
            .article-breadcrumb-row span {
                white-space: nowrap;
            }

            .article-meta-item {
                font-size: 13px;
            }

            .article-bottom-nav {
                flex-direction: column;
                align-items: stretch;
            }

            .article-bottom-link {
                justify-content: center;
                text-align: center;
            }

            .related-card {
                min-width: 0;
            }

            .btn {
                width: 100%;
                margin-bottom: 6px;
            }

            .cta-banner .btn {
                margin: 0 0 14px;
            }
        }

/* roulang page: category2 */
:root {
            --color-bg: #F7F7F2;
            --color-surface: #FFFFFF;
            --color-ink: #141414;
            --color-ink-soft: #4F4F4F;
            --color-line: rgba(20, 20, 20, 0.08);
            --color-primary: #d6f92f;
            --color-primary-ink: #1b2300;
            --color-accent-electric: #7A5CFF;
            --color-warning-accent: #FF5A36;
            --radius-lg: 22px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 10px rgba(20, 20, 20, 0.05);
            --shadow-md: 0 10px 28px rgba(20, 20, 20, 0.1);
            --shadow-lift: 0 18px 42px rgba(20, 20, 20, 0.14);
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background: var(--color-bg);
            color: var(--color-ink);
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.85;
            -webkit-font-smoothing: antialiased;
        }

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

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

        a:hover {
            color: var(--color-primary-ink);
        }

        button,
        input {
            font-family: inherit;
        }

        .navbar {
            padding-top: 0;
            padding-bottom: 0;
        }

        .container {
            max-width: 1320px;
        }

        .dock-header {
            position: fixed;
            top: 16px;
            left: 0;
            right: 0;
            z-index: 1080;
            display: flex;
            justify-content: center;
            padding: 0 18px;
            pointer-events: none;
        }

        .dock-nav {
            pointer-events: auto;
            width: 100%;
            max-width: 1180px;
            background: rgba(18, 18, 18, 0.94);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 999px;
            padding: 0 14px 0 22px;
            box-shadow: 0 10px 32px rgba(20, 20, 20, 0.18);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .dock-header .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 9px;
            color: #ffffff;
            font-weight: 800;
            font-size: 18px;
            line-height: 1.2;
            padding: 12px 0;
        }

        .dock-header .brand-mark {
            width: 30px;
            height: 30px;
            flex: 0 0 30px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--color-primary);
            color: var(--color-primary-ink);
            font-size: 13px;
        }

        .dock-header .brand-mobile {
            display: none;
        }

        .dock-header .navbar-toggler {
            border: 0;
            color: #ffffff;
            font-size: 19px;
            padding: 6px 10px;
            width: 42px;
            box-shadow: none;
        }

        .dock-header .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(214, 249, 47, 0.45);
        }

        .dock-header .navbar-collapse {
            justify-content: space-between;
        }

        .dock-header .navbar-nav {
            align-items: center;
            gap: 2px;
        }

        .dock-header .nav-link {
            color: rgba(255, 255, 255, 0.72);
            font-size: 14px;
            font-weight: 600;
            border-radius: 999px;
            padding: 8px 13px;
            position: relative;
            transition: color 0.2s ease;
        }

        .dock-header .nav-link:hover,
        .dock-header .nav-link.active,
        .dock-header .nav-link:focus {
            color: var(--color-primary);
        }

        .dock-header .nav-link.active::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
        }

        .dock-header .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: var(--color-primary);
            color: var(--color-primary-ink);
            border-radius: 999px;
            padding: 8px 17px;
            font-size: 14px;
            font-weight: 800;
            border: 1px solid var(--color-primary);
            white-space: nowrap;
            transition: all 0.2s ease;
        }

        .dock-header .nav-cta:hover {
            background: transparent;
            color: var(--color-primary);
            border-color: var(--color-primary);
        }

        .site-main {
            padding-top: 62px;
        }

        .hero-board {
            position: relative;
            overflow: hidden;
            border-radius: 32px;
            background: #111111;
            background-image: url("/assets/images/backpic/back-2.webp");
            background-size: cover;
            background-position: center;
            padding: clamp(48px, 6vw, 84px);
            color: #ffffff;
            box-shadow: var(--shadow-md);
            min-height: 560px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .hero-board::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(8, 8, 8, 0.94) 15%, rgba(20, 20, 20, 0.86) 56%, rgba(20, 20, 20, 0.65) 100%);
        }

        .hero-board .hero-inner {
            position: relative;
            z-index: 2;
            max-width: 860px;
        }

        .hero-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(214, 249, 47, 0.13);
            border: 1px solid rgba(214, 249, 47, 0.28);
            color: var(--color-primary);
            padding: 5px 13px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.02em;
            margin-bottom: 22px;
        }

        .hero-kicker i {
            font-size: 12px;
        }

        .hero-board h1 {
            color: #ffffff;
            font-size: clamp(46px, 7vw, 82px);
            font-weight: 800;
            line-height: 1.08;
            letter-spacing: -0.01em;
            margin: 0 0 20px;
        }

        .hero-board .hero-desc {
            color: rgba(255, 255, 255, 0.78);
            font-size: 17px;
            line-height: 1.9;
            max-width: 680px;
            margin-bottom: 27px;
        }

        .hero-board .hero-desc strong {
            color: var(--color-primary);
            font-weight: 700;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 8px;
        }

        .btn-acid,
        .btn-ghost-light {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 999px;
            font-weight: 800;
            font-size: 15px;
            padding: 12px 24px;
            border: 1px solid transparent;
            transition: all 0.2s ease;
        }

        .btn-acid {
            background: var(--color-primary);
            color: var(--color-primary-ink);
            border-color: var(--color-primary);
        }

        .btn-acid:hover {
            background: transparent;
            color: var(--color-primary);
            border-color: var(--color-primary);
        }

        .btn-ghost-light {
            background: transparent;
            color: #ffffff;
            border-color: rgba(255, 255, 255, 0.45);
        }

        .btn-ghost-light:hover {
            background: #ffffff;
            color: #111111;
            border-color: #ffffff;
        }

        .btn-ink {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-ink);
            color: #ffffff;
            border: 1px solid var(--color-ink);
            border-radius: 999px;
            font-size: 15px;
            font-weight: 800;
            padding: 11px 22px;
            transition: all 0.2s ease;
        }

        .btn-ink:hover {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: var(--color-primary-ink);
        }

        .hero-board .source-data-strip {
            margin-top: 42px;
            border: 1px solid rgba(255, 255, 255, 0.16);
            border-radius: 18px;
            background: rgba(255, 255, 255, 0.07);
            padding: 15px 18px;
            display: grid;
            grid-template-columns: repeat(4, minmax(0, 1fr));
            gap: 10px;
        }

        .source-cell {
            display: flex;
            flex-direction: column;
            gap: 3px;
            padding-right: 10px;
            border-right: 1px solid rgba(255, 255, 255, 0.16);
            min-width: 0;
        }

        .source-cell:last-child {
            border-right: 0;
            padding-right: 0;
        }

        .source-label {
            color: rgba(255, 255, 255, 0.55);
            font-size: 12px;
            letter-spacing: 0.03em;
        }

        .source-value {
            color: #ffffff;
            font-weight: 800;
            font-size: 16px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .source-value .acid {
            color: var(--color-primary);
        }

        .source-value .pulse-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-primary);
            margin-right: 7px;
            animation: pulseDot 1.6s infinite ease-in-out;
        }

        @keyframes pulseDot {
            0%,
            100% {
                opacity: 1;
                box-shadow: 0 0 0 0 rgba(214, 249, 47, 0.6);
            }
            50% {
                opacity: 0.72;
                box-shadow: 0 0 0 5px rgba(214, 249, 47, 0);
            }
        }

        .section-space {
            padding: clamp(66px, 9vw, 112px) 0;
        }

        .section-space-sm {
            padding: clamp(36px, 5vw, 64px) 0;
        }

        .site-section-head {
            margin-bottom: 38px;
        }

        .section-caption {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--color-accent-electric);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.08em;
            margin-bottom: 12px;
        }

        .section-caption .line {
            width: 28px;
            height: 2px;
            background: var(--color-primary);
        }

        .site-section-head h2 {
            font-size: clamp(28px, 3.8vw, 44px);
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.01em;
            margin: 0 0 12px;
        }

        .site-section-head p {
            color: var(--color-ink-soft);
            font-size: 16px;
            max-width: 760px;
            margin: 0;
        }

        .schedule-wrap {
            position: relative;
        }

        .schedule-wrap .schedule-rail {
            position: relative;
            padding-left: 32px;
            margin: 0;
            list-style: none;
        }

        .schedule-rail::before {
            content: "";
            position: absolute;
            left: 11px;
            top: 14px;
            bottom: 20px;
            width: 2px;
            background: rgba(20, 20, 20, 0.1);
        }

        .schedule-item {
            position: relative;
            padding: 24px 0 24px 18px;
            display: grid;
            grid-template-columns: 190px minmax(0, 1fr) auto;
            gap: 18px;
            align-items: start;
            border-bottom: 1px solid var(--color-line);
        }

        .schedule-item::before {
            content: "";
            position: absolute;
            left: -29px;
            top: 32px;
            width: 11px;
            height: 11px;
            border-radius: 50%;
            background: var(--color-surface);
            border: 3px solid var(--color-primary);
            box-shadow: 0 0 0 2px var(--color-bg);
        }

        .schedule-item .schedule-time {
            font-weight: 800;
            font-size: 16px;
            font-variant-numeric: tabular-nums;
            color: var(--color-ink);
        }

        .schedule-item .schedule-batch {
            display: block;
            color: var(--color-ink-soft);
            font-size: 13px;
            font-weight: 500;
            margin-top: 2px;
        }

        .schedule-item .schedule-title {
            font-size: 18px;
            font-weight: 750;
            line-height: 1.55;
            margin-bottom: 6px;
        }

        .schedule-item .schedule-short {
            color: var(--color-ink-soft);
            font-size: 15px;
            line-height: 1.8;
            margin: 0;
        }

        .schedule-item .schedule-status {
            align-self: center;
            white-space: nowrap;
            padding: 6px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 700;
            background: rgba(214, 249, 47, 0.22);
            color: #253700;
        }

        .range-index-wrap {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 20px;
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-lg);
            padding: 30px 32px;
            box-shadow: var(--shadow-sm);
        }

        .range-index-main h3 {
            font-size: 22px;
            font-weight: 800;
            margin: 0 0 16px;
        }

        .range-chip-list {
            display: flex;
            flex-wrap: wrap;
            gap: 9px;
            margin-bottom: 16px;
        }

        .range-chip {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 6px 12px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 700;
            background: rgba(20, 20, 20, 0.05);
            color: var(--color-ink);
            border: 1px solid transparent;
        }

        .range-chip .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-accent-electric);
        }

        .range-metrics {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
        }

        .metric-cell {
            background: var(--color-bg);
            border-radius: var(--radius-md);
            padding: 16px 12px;
            text-align: center;
        }

        .metric-cell .metric-num {
            font-size: 26px;
            font-weight: 800;
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
            color: var(--color-accent-electric);
        }

        .metric-cell .metric-label {
            font-size: 13px;
            color: var(--color-ink-soft);
            margin-top: 2px;
        }

        .coverage-board {
            border-radius: var(--radius-lg);
            background: #141414;
            color: #ffffff;
            padding: 34px;
            box-shadow: var(--shadow-md);
            min-height: 100%;
        }

        .coverage-board .board-title {
            color: var(--color-primary);
            font-size: 14px;
            font-weight: 800;
            letter-spacing: 0.05em;
            margin-bottom: 22px;
        }

        .coverage-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .coverage-item {
            display: flex;
            align-items: center;
            gap: 13px;
            padding: 13px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 14px;
            font-weight: 600;
        }

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

        .coverage-item .bar {
            flex: 1;
            max-width: 180px;
            height: 5px;
            border-radius: 5px;
            background: rgba(255, 255, 255, 0.15);
            overflow: hidden;
        }

        .coverage-item .bar i {
            display: block;
            height: 100%;
            background: var(--color-primary);
            border-radius: 5px;
        }

        .coverage-item .coverage-num {
            color: rgba(255, 255, 255, 0.55);
            font-size: 12px;
            font-variant-numeric: tabular-nums;
            min-width: 36px;
            text-align: right;
        }

        .visual-gallery {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }

        .visual-card {
            position: relative;
            overflow: hidden;
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
        }

        .visual-card img {
            height: 250px;
            width: 100%;
            object-fit: cover;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
            transition: transform 0.3s ease;
        }

        .visual-card:hover img {
            transform: scale(1.02);
        }

        .visual-card .visual-caption {
            padding: 14px 18px 16px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            font-weight: 700;
            color: var(--color-ink);
        }

        .visual-card .visual-caption span {
            color: var(--color-ink-soft);
            font-size: 12px;
            font-weight: 500;
            font-variant-numeric: tabular-nums;
        }

        .log-card-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .log-card {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 24px 26px;
            display: grid;
            grid-template-columns: 190px minmax(0, 1fr) auto;
            gap: 22px;
            align-items: center;
            transition: box-shadow 0.2s ease, transform 0.2s ease;
        }

        .log-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lift);
            border-color: rgba(214, 249, 47, 0.8);
        }

        .log-card .log-left {
            border-right: 1px solid var(--color-line);
            padding-right: 18px;
        }

        .log-card .log-batch {
            font-size: 12px;
            color: var(--color-accent-electric);
            font-weight: 800;
            font-variant-numeric: tabular-nums;
            letter-spacing: 0.04em;
            margin-bottom: 6px;
        }

        .log-card .log-days {
            font-weight: 800;
            font-size: 20px;
            font-variant-numeric: tabular-nums;
        }

        .log-card .log-title {
            font-size: 18px;
            font-weight: 750;
            line-height: 1.5;
            margin-bottom: 5px;
        }

        .log-card .log-desc {
            color: var(--color-ink-soft);
            font-size: 14px;
            line-height: 1.8;
            margin: 0;
        }

        .log-card .tag-row {
            display: flex;
            gap: 7px;
            justify-content: flex-end;
            flex-wrap: wrap;
        }

        .meta-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 12px;
            font-weight: 700;
            padding: 5px 11px;
            border-radius: 999px;
            background: rgba(20, 20, 20, 0.06);
            color: var(--color-ink);
        }

        .meta-tag.violet {
            background: rgba(122, 92, 255, 0.1);
            color: #4d35b8;
        }

        .meta-tag.acid {
            background: rgba(214, 249, 47, 0.2);
            color: #293d00;
        }

        .empty-log-box {
            border: 2px dashed #c5c5ba;
            border-radius: var(--radius-lg);
            padding: 52px 20px;
            text-align: center;
            color: var(--color-ink-soft);
            background: rgba(255, 255, 255, 0.5);
        }

        .empty-log-box i {
            font-size: 24px;
            color: #b7b7ac;
            display: block;
            margin-bottom: 10px;
        }

        .faq-wrap {
            max-width: 920px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid rgba(20, 20, 20, 0.14);
            padding: 22px 0;
        }

        .faq-item:first-child {
            border-top: 1px solid rgba(20, 20, 20, 0.14);
        }

        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            cursor: pointer;
            font-size: 18px;
            font-weight: 750;
            line-height: 1.6;
            padding: 4px 0;
        }

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

        .faq-item .faq-plus {
            flex: 0 0 30px;
            width: 30px;
            height: 30px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--color-ink);
            color: #ffffff;
            font-size: 16px;
            transition: transform 0.25s ease, background 0.25s ease;
        }

        .faq-item[open] .faq-plus {
            transform: rotate(45deg);
            background: var(--color-primary);
            color: var(--color-primary-ink);
        }

        .faq-answer {
            padding: 8px 48px 4px 0;
            color: var(--color-ink-soft);
            font-size: 15px;
            line-height: 1.9;
        }

        .cta-final {
            border-radius: 38px;
            background: var(--color-primary);
            color: var(--color-primary-ink);
            padding: clamp(42px, 6vw, 76px);
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .cta-final::before {
            content: "";
            position: absolute;
            right: -60px;
            top: -60px;
            width: 230px;
            height: 230px;
            border-radius: 50%;
            border: 2px solid rgba(20, 20, 20, 0.2);
            box-shadow: 0 0 0 18px rgba(20, 20, 20, 0.05), 0 0 0 36px rgba(20, 20, 20, 0.04);
        }

        .cta-final .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }

        .cta-final .cta-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(20, 20, 20, 0.09);
            border-radius: 999px;
            padding: 5px 13px;
            font-size: 13px;
            font-weight: 800;
            margin-bottom: 18px;
        }

        .cta-final h2 {
            font-size: clamp(30px, 4.5vw, 52px);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.01em;
            margin: 0 0 14px;
        }

        .cta-final p {
            font-size: 16px;
            line-height: 1.85;
            opacity: 0.82;
            margin: 0 0 26px;
            max-width: 620px;
        }

        .btn-dark-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-ink);
            color: var(--color-primary);
            border: 1px solid var(--color-ink);
            border-radius: 999px;
            font-size: 15px;
            font-weight: 800;
            padding: 13px 26px;
            transition: all 0.2s ease;
        }

        .btn-dark-cta:hover {
            background: transparent;
            border-color: var(--color-primary-ink);
            color: var(--color-primary-ink);
        }

        .btn-line-cta {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            border: 1.5px solid var(--color-primary-ink);
            border-radius: 999px;
            color: var(--color-primary-ink);
            font-size: 14px;
            font-weight: 800;
            padding: 11px 22px;
            margin-left: 2px;
            transition: all 0.2s ease;
        }

        .btn-line-cta:hover {
            background: var(--color-ink);
            color: var(--color-primary);
            border-color: var(--color-ink);
        }

        .site-footer {
            background: #141414;
            color: rgba(255, 255, 255, 0.66);
            margin-top: 40px;
            border-radius: 36px 36px 0 0;
            padding: 66px 0 26px;
            position: relative;
            overflow: hidden;
        }

        .site-footer .footer-wave {
            height: 2px;
            background: linear-gradient(90deg, transparent 0%, var(--color-primary) 20%, transparent 40%, rgba(255, 255, 255, 0.13) 60%, transparent 75%, var(--color-primary) 100%);
            margin-bottom: 34px;
            opacity: 0.5;
        }

        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #ffffff;
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 18px;
        }

        .site-footer .brand-badge {
            width: 32px;
            height: 32px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--color-primary);
            color: var(--color-primary-ink);
            font-size: 13px;
        }

        .site-footer p {
            line-height: 1.9;
            font-size: 14px;
            max-width: 380px;
            margin-bottom: 18px;
        }

        .site-footer .footer-info-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1px solid rgba(255, 255, 255, 0.16);
            border-radius: 12px;
            padding: 8px 13px;
            background: rgba(255, 255, 255, 0.05);
            font-size: 13px;
            color: #d5d5cf;
        }

        .site-footer h4 {
            color: #ffffff;
            font-size: 16px;
            font-weight: 800;
            margin: 6px 0 18px;
        }

        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 11px;
        }

        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.62);
            font-size: 14px;
            line-height: 1.7;
            transition: color 0.2s ease, padding-left 0.2s ease;
        }

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

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 44px;
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 8px;
            color: rgba(255, 255, 255, 0.44);
            font-size: 13px;
        }

        @media (max-width: 991.98px) {
            .dock-header {
                top: 10px;
                padding: 0 12px;
            }

            .dock-nav {
                padding: 6px 14px;
                border-radius: 999px;
            }

            .dock-header .navbar-collapse {
                background: rgba(18, 18, 18, 0.98);
                border-radius: 26px;
                padding: 16px 10px 18px;
                margin-top: 10px;
                box-shadow: var(--shadow-md);
            }

            .dock-header .navbar-nav {
                align-items: stretch;
                width: 100%;
                margin-left: 0 !important;
            }

            .dock-header .nav-link {
                padding: 12px 14px;
                border-radius: 12px;
            }

            .dock-header .nav-link.active {
                background: rgba(214, 249, 47, 0.12);
            }

            .dock-header .nav-link.active::after {
                display: none;
            }

            .dock-header .nav-cta {
                margin-top: 12px !important;
                justify-content: center;
            }

            .hero-board {
                min-height: auto;
            }

            .source-data-strip {
                grid-template-columns: repeat(2, 1fr);
                row-gap: 16px;
            }

            .source-cell:nth-child(2) {
                border-right: 0;
            }

            .source-cell:nth-child(-n+2) {
                padding-bottom: 6px;
            }

            .schedule-item {
                grid-template-columns: 1fr;
                gap: 10px;
                padding-left: 0;
            }

            .schedule-item .schedule-status {
                justify-self: start;
            }

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

            .visual-gallery {
                grid-template-columns: repeat(2, 1fr);
            }

            .log-card {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .log-card .log-left {
                border-right: 0;
                border-bottom: 1px solid var(--color-line);
                padding-right: 0;
                padding-bottom: 10px;
            }

            .log-card .tag-row {
                justify-content: flex-start;
            }
        }

        @media (max-width: 767.98px) {
            .site-main {
                padding-top: 48px;
            }

            .hero-board {
                padding: 36px 22px;
                border-radius: 24px;
            }

            .hero-board h1 {
                font-size: 44px;
            }

            .hero-board .hero-desc {
                font-size: 15px;
            }

            .hero-actions .btn-acid,
            .hero-actions .btn-ghost-light {
                width: 100%;
            }

            .source-data-strip {
                grid-template-columns: 1fr;
            }

            .source-cell {
                border-right: 0;
                padding: 8px 0 0;
                border-bottom: 1px dashed rgba(255, 255, 255, 0.14);
            }

            .source-cell:last-child {
                border-bottom: 0;
                padding-bottom: 4px;
            }

            .range-index-wrap {
                padding: 22px;
            }

            .range-metrics {
                grid-template-columns: repeat(3, 1fr);
                gap: 6px;
            }

            .metric-cell .metric-num {
                font-size: 20px;
            }

            .visual-gallery {
                grid-template-columns: 1fr;
            }

            .faq-item summary {
                font-size: 16px;
                line-height: 1.55;
            }

            .faq-answer {
                padding: 8px 8px 0 0;
            }

            .site-footer {
                border-radius: 18px 18px 0 0;
            }

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

        @media (max-width: 520px) {
            .dock-header .brand-full {
                display: none;
            }

            .dock-header .brand-mobile {
                display: inline;
                font-size: 17px;
            }

            .dock-header .navbar-brand {
                font-size: 17px;
            }

            .hero-actions {
                flex-direction: column;
            }

            .btn-ghost-light {
                margin-left: 0;
            }

            .range-metrics {
                grid-template-columns: 1fr;
            }
        }

        body {
            overflow-x: hidden;
        }