/* roulang page: index */
:root {
            --bg: #0D0F14;
            --surface: #161920;
            --surface-2: #1D212B;
            --line: rgba(255, 255, 255, .08);
            --lime: #D9F85C;
            --orange: #FF8A3D;
            --pink: #FF4D6D;
            --text: #F2F3EE;
            --text-sub: #ADB2B0;
            --text-muted: #7A817F;
            --radius-sm: 10px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 26px;
            --shadow-1: 0 12px 40px rgba(0, 0, 0, .35);
            --shadow-2: 0 4px 20px rgba(0, 0, 0, .25);
            --space-section: clamp(64px, 8vw, 112px);
            --container-w: 1290px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background: var(--bg);
            color: var(--text);
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 15px;
            line-height: 1.65;
            letter-spacing: 0.01em;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

        .container {
            max-width: var(--container-w);
            padding-left: 22px;
            padding-right: 22px;
        }

        .section {
            padding: var(--space-section) 0;
            position: relative;
        }

        .section-caption {
            max-width: 720px;
        }

        .section-kicker {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--lime);
            font-size: 12px;
            font-weight: 700;
            letter-spacing: .06em;
            text-transform: uppercase;
            margin-bottom: 14px;
        }

        .section-kicker::before {
            content: "";
            width: 24px;
            height: 2px;
            background: var(--lime);
            display: inline-block;
            border-radius: 99px;
        }

        h1,
        h2,
        h3,
        h4,
        h5 {
            font-weight: 800;
            line-height: 1.25;
            color: var(--text);
            letter-spacing: .01em;
        }

        h1 {
            font-size: clamp(34px, 5.2vw, 56px);
            line-height: 1.18;
            margin-bottom: 20px;
        }

        h2 {
            font-size: clamp(28px, 4vw, 38px);
            margin-bottom: 18px;
        }

        h3 {
            font-size: 20px;
            margin-bottom: 10px;
        }

        .lead-copy {
            color: var(--text-sub);
            font-size: 16px;
            line-height: 1.75;
        }

        .hero-hl {
            color: var(--lime);
        }

        .text-sub {
            color: var(--text-sub);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 999px;
            font-weight: 700;
            padding: 10px 22px;
            text-decoration: none;
            transition: transform .18s ease, box-shadow .18s ease, background .2s ease, border-color .2s ease;
            border: 1px solid transparent;
            font-size: 15px;
            line-height: 1.4;
        }

        .btn:hover {
            color: inherit;
            transform: translateY(-2px);
        }

        .btn-main {
            background: var(--orange);
            color: #0D0F14;
            border-color: var(--orange);
            box-shadow: 0 6px 18px rgba(255, 138, 61, .24);
        }

        .btn-main:hover {
            background: #ffa363;
            color: #0D0F14;
            box-shadow: 0 8px 24px rgba(255, 138, 61, .32);
        }

        .btn-ghost {
            background: transparent;
            color: var(--text);
            border-color: rgba(255, 255, 255, .22);
        }

        .btn-ghost:hover {
            border-color: var(--lime);
            color: var(--lime);
            background: rgba(217, 248, 92, .06);
        }

        .btn-cta {
            background: var(--orange);
            border-color: var(--orange);
            color: #0D0F14;
            font-weight: 800;
            padding: 9px 18px;
            font-size: 14px;
            box-shadow: 0 6px 20px rgba(255, 138, 61, .2);
        }

        .btn-cta:hover {
            background: #ffa363;
            border-color: #ffa363;
            color: #0D0F14;
        }

        .btn-lime {
            background: var(--lime);
            border-color: var(--lime);
            color: #14170B;
            font-weight: 800;
        }

        .btn-lime:hover {
            background: #e9ff8a;
            border-color: #e9ff8a;
            color: #14170B;
        }

        .btn-lg-cta {
            padding: 16px 44px;
            font-size: 18px;
            background: var(--orange);
            color: #0D0F14;
            border-radius: 999px;
            border: none;
            box-shadow: 0 10px 40px rgba(255, 138, 61, .28);
        }

        .btn-lg-cta:hover {
            background: #ffa363;
            color: #0D0F14;
            transform: translateY(-2px);
        }

        /* 导航 */
        .site-nav {
            position: sticky;
            top: 0;
            z-index: 1080;
            min-height: 74px;
            background: rgba(13, 15, 20, .9);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--line);
        }

        .site-nav .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 21px;
            font-weight: 900;
            color: var(--text);
            letter-spacing: .02em;
            margin-right: 0;
            padding: 12px 0;
        }

        .brand-name .brand-accent {
            color: var(--lime);
        }

        .site-nav .navbar-nav {
            gap: 4px;
        }

        .site-nav .nav-link {
            color: var(--text-sub);
            font-weight: 600;
            font-size: 14px;
            padding: 8px 14px;
            border-radius: 999px;
        }

        .site-nav .nav-link:hover,
        .site-nav .nav-link:focus {
            color: var(--text);
            background: rgba(255, 255, 255, .04);
        }

        .site-nav .nav-link.active {
            color: var(--lime);
            background: rgba(217, 248, 92, .08);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: nowrap;
        }

        .nav-search {
            position: relative;
        }

        .nav-search .form-control {
            background: var(--surface);
            border: 1px solid var(--line);
            color: var(--text);
            border-radius: 999px;
            height: 40px;
            width: 200px;
            font-size: 13px;
            padding: 0 16px 0 36px;
            transition: width .3s ease, border-color .2s ease, box-shadow .2s ease;
        }

        .nav-search .form-control::placeholder {
            color: var(--text-muted);
        }

        .nav-search .form-control:focus {
            width: 300px;
            border-color: var(--lime);
            box-shadow: 0 0 0 4px rgba(217, 248, 92, .12);
            background: var(--surface-2);
            color: var(--text);
        }

        .nav-search .search-ico {
            position: absolute;
            left: 13px;
            top: 50%;
            transform: translateY(-50%);
            width: 14px;
            height: 14px;
            border: 2px solid var(--text-muted);
            border-radius: 50%;
            pointer-events: none;
            opacity: .85;
        }

        .nav-search .search-ico::after {
            content: "";
            position: absolute;
            right: -5px;
            bottom: -3px;
            width: 7px;
            height: 2px;
            background: var(--text-muted);
            transform: rotate(45deg);
            border-radius: 4px;
        }

        .nav-mobile-cta {
            display: none;
        }

        .navbar-toggler {
            border-color: rgba(255, 255, 255, .2);
            border-radius: var(--radius-sm);
            padding: 5px 10px;
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28242,243,238,.6%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 8h22M4 15h22M4 22h22'/%3e%3c/svg%3e");
        }

        /* Hero */
        .home-hero {
            position: relative;
            padding: 90px 0 70px;
            overflow: hidden;
        }

        .hero-backdrop {
            position: absolute;
            inset: 0;
            background-image: url("/assets/images/backpic/back-1.jpg");
            background-size: cover;
            background-position: center 30%;
            opacity: .35;
        }

        .hero-backdrop::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(13, 15, 20, .92) 10%, rgba(13, 15, 20, .72) 48%, rgba(13, 15, 20, .45) 100%);
        }

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

        .hero-kicker {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--lime);
            font-size: 13px;
            font-weight: 700;
            background: rgba(217, 248, 92, .08);
            border: 1px solid rgba(217, 248, 92, .2);
            border-radius: 999px;
            padding: 6px 14px;
            margin-bottom: 22px;
        }

        .hero-console {
            background: linear-gradient(165deg, #1C2029, #12151B);
            border: 1px solid var(--line);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-1);
            overflow: hidden;
            transform: rotate(1.2deg);
        }

        .console-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 18px;
            border-bottom: 1px solid var(--line);
            background: rgba(255, 255, 255, .03);
            color: var(--text-sub);
            font-size: 13px;
            font-weight: 600;
        }

        .console-dots {
            display: flex;
            gap: 6px;
        }

        .console-dots i {
            width: 9px;
            height: 9px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .15);
        }

        .console-dots i:first-child {
            background: var(--pink);
        }

        .console-live {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .console-live i {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--pink);
            box-shadow: 0 0 0 3px rgba(255, 77, 109, .15);
        }

        .console-body {
            padding: 10px 6px;
        }

        .console-row {
            display: flex;
            align-items: center;
            gap: 12px;
            border-radius: 12px;
            padding: 13px 14px;
            margin: 0 8px;
            border: 1px solid transparent;
            transition: background .2s ease, border-color .2s ease;
        }

        .console-row+.console-row {
            margin-top: 5px;
        }

        .console-row:hover {
            background: rgba(255, 255, 255, .03);
            border-color: var(--line);
        }

        .console-row.active {
            background: rgba(217, 248, 92, .06);
            border-color: rgba(217, 248, 92, .18);
        }

        .console-time {
            font-size: 13px;
            font-weight: 800;
            color: var(--lime);
            font-variant-numeric: tabular-nums;
            min-width: 52px;
        }

        .console-name {
            flex: 1;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .console-dur {
            font-size: 11px;
            color: var(--text-muted);
            background: rgba(255, 255, 255, .06);
            padding: 3px 8px;
            border-radius: 999px;
            white-space: nowrap;
        }

        .console-foot {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 18px;
            border-top: 1px solid var(--line);
            color: var(--text-muted);
            font-size: 13px;
        }

        .console-foot .pulse {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .console-foot .pulse::before {
            content: "";
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--lime);
            box-shadow: 0 0 0 3px rgba(217, 248, 92, .12);
        }

        .console-foot .go-link {
            color: var(--lime);
            font-weight: 700;
            font-size: 13px;
        }

        .hero-data {
            display: flex;
            gap: clamp(16px, 4vw, 42px);
            padding-top: 38px;
            margin-top: 40px;
            border-top: 1px solid var(--line);
            flex-wrap: wrap;
        }

        .hero-data .data-cell {
            border-left: 2px solid rgba(217, 248, 92, .45);
            padding-left: 14px;
        }

        .hero-data .num {
            font-size: 26px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.2;
        }

        .hero-data .num small {
            font-size: 16px;
            color: var(--lime);
        }

        .hero-data .label {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .hero-ctas {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 28px;
        }

        /* 痛点区 */
        .pain-area {
            background: var(--surface);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }

        .pain-track {
            position: relative;
            max-width: 880px;
        }

        .pain-track::before {
            content: "";
            position: absolute;
            left: 88px;
            top: 10px;
            bottom: 10px;
            width: 1px;
            background: linear-gradient(to bottom, rgba(217, 248, 92, .5), rgba(255, 255, 255, .06));
        }

        .pain-item {
            display: grid;
            grid-template-columns: 88px 1fr auto;
            gap: 22px;
            padding: 28px 0;
            border-bottom: 1px solid var(--line);
            position: relative;
        }

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

        .pain-time {
            font-size: 14px;
            font-weight: 800;
            color: var(--lime);
            font-variant-numeric: tabular-nums;
            padding-top: 4px;
            letter-spacing: .04em;
            position: relative;
            z-index: 1;
        }

        .pain-time::after {
            content: "";
            width: 9px;
            height: 9px;
            background: var(--surface);
            border: 2px solid var(--lime);
            border-radius: 50%;
            position: absolute;
            right: -28px;
            top: 14px;
        }

        .pain-copy h3 {
            font-size: 18px;
            margin-bottom: 8px;
        }

        .pain-copy p {
            margin-bottom: 0;
            max-width: 620px;
            color: var(--text-sub);
            font-size: 15px;
        }

        .pain-tag {
            align-self: start;
            font-size: 12px;
            color: var(--text-muted);
            border: 1px solid var(--line);
            border-radius: 999px;
            padding: 4px 12px;
            white-space: nowrap;
            background: rgba(255, 255, 255, .02);
        }

        /* 解决方案 */
        .solution-panel {
            background: linear-gradient(165deg, var(--surface-2), var(--surface));
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: clamp(22px, 4vw, 40px);
        }

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

        .sol-list li {
            display: grid;
            grid-template-columns: 44px 1fr auto;
            gap: 16px;
            align-items: center;
            padding: 19px 0;
            border-bottom: 1px solid var(--line);
        }

        .sol-list li:last-child {
            border-bottom: none;
        }

        .sol-ico {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: rgba(217, 248, 92, .1);
            border: 1px solid rgba(217, 248, 92, .16);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--lime);
            font-weight: 800;
            font-size: 13px;
        }

        .sol-copy strong {
            display: block;
            color: var(--text);
            font-weight: 700;
            margin-bottom: 4px;
            font-size: 15px;
        }

        .sol-copy span {
            color: var(--text-sub);
            font-size: 14px;
            display: block;
            line-height: 1.6;
        }

        .sol-tc {
            font-size: 12px;
            color: var(--text-muted);
            font-variant-numeric: tabular-nums;
            white-space: nowrap;
        }

        .sol-media {
            display: grid;
            gap: 16px;
        }

        .media-main {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--line);
            box-shadow: var(--shadow-1);
        }

        .media-main img,
        .media-secondary img {
            width: 100%;
            object-fit: cover;
        }

        .media-main img {
            aspect-ratio: 16/10;
        }

        .media-secondary img {
            aspect-ratio: 16/9;
        }

        .media-float {
            position: absolute;
            left: 14px;
            bottom: 14px;
            right: 14px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: rgba(13, 15, 20, .78);
            border: 1px solid rgba(255, 255, 255, .1);
            backdrop-filter: blur(6px);
            border-radius: 12px;
            padding: 10px 14px;
            color: var(--text);
            font-size: 13px;
            font-weight: 600;
        }

        .media-float .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .media-float .tag::before {
            content: "";
            width: 6px;
            height: 6px;
            background: var(--pink);
            border-radius: 50%;
        }

        .secondary-card {
            display: grid;
            grid-template-columns: 100px 1fr;
            gap: 14px;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 10px;
            align-items: center;
            transition: border-color .2s ease, transform .2s ease;
        }

        .secondary-card:hover {
            border-color: rgba(217, 248, 92, .3);
            transform: translateY(-3px);
        }

        .secondary-card img {
            border-radius: 8px;
            aspect-ratio: 16/10;
        }

        .secondary-card strong {
            display: block;
            font-size: 14px;
            color: var(--text);
            margin-bottom: 4px;
        }

        .secondary-card span {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 指标 */
        .metrics-area {
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
            background: var(--surface);
        }

        .metric-card {
            height: 100%;
            background: linear-gradient(160deg, #171B23, #13161D);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 28px 22px 20px;
            position: relative;
            overflow: hidden;
            transition: transform .2s ease, border-color .2s ease;
        }

        .metric-card:hover {
            transform: translateY(-4px);
            border-color: rgba(217, 248, 92, .25);
        }

        .metric-card::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            height: 3px;
            width: var(--bar, 50%);
            background: linear-gradient(90deg, var(--lime), transparent);
            border-radius: 0 99px 0 0;
        }

        .metric-num {
            font-size: clamp(34px, 5vw, 48px);
            font-weight: 800;
            line-height: 1.1;
            color: var(--lime);
            letter-spacing: -0.02em;
        }

        .metric-label {
            margin-top: 12px;
            font-size: 14px;
            font-weight: 700;
            color: var(--text);
        }

        .metric-desc {
            margin-top: 6px;
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.55;
        }

        /* 证言 */
        .quote-card {
            height: 100%;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 26px 22px;
            position: relative;
            display: flex;
            flex-direction: column;
            gap: 16px;
            transition: border-color .2s ease, transform .2s ease;
        }

        .quote-card:hover {
            border-color: rgba(217, 248, 92, .22);
            transform: translateY(-3px);
        }

        .quote-card::before {
            content: "“";
            position: absolute;
            top: 8px;
            right: 22px;
            font-size: 90px;
            line-height: 1;
            color: rgba(217, 248, 92, .08);
            font-weight: 800;
        }

        .quote-text {
            color: var(--text);
            font-size: 15px;
            line-height: 1.75;
            margin: 0;
        }

        .quote-stars {
            color: var(--lime);
            font-size: 13px;
            letter-spacing: 2px;
        }

        .quote-user {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: auto;
        }

        .quote-avatar {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(145deg, rgba(217, 248, 92, .2), rgba(255, 255, 255, .04));
            border: 1px solid rgba(217, 248, 92, .25);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--lime);
            font-weight: 800;
            font-size: 14px;
        }

        .quote-user strong {
            display: block;
            font-size: 13px;
            color: var(--text);
        }

        .quote-user span {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* FAQ */
        .faq-area .card-wrap {
            max-width: 920px;
            margin: 0 auto;
        }

        .faq-wrap {
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            overflow: hidden;
        }

        .accordion-item {
            background: var(--surface);
            border: none;
            border-bottom: 1px solid var(--line);
        }

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

        .accordion-button {
            background: var(--surface);
            color: var(--text);
            font-size: 15px;
            font-weight: 700;
            padding: 20px 22px;
            box-shadow: none;
            border-radius: 0 !important;
            position: relative;
        }

        .accordion-button::after {
            background: none;
            content: "+";
            font-size: 22px;
            font-weight: 400;
            color: var(--text-muted);
            width: auto;
            height: auto;
            background-image: none;
            transition: transform .2s;
        }

        .accordion-button:not(.collapsed) {
            background: var(--surface-2);
            color: var(--lime);
            box-shadow: inset 3px 0 0 var(--lime);
        }

        .accordion-button:not(.collapsed)::after {
            color: var(--lime);
            transform: rotate(45deg);
        }

        .accordion-button:focus {
            box-shadow: none;
            border-color: transparent;
        }

        .accordion-button:focus-visible {
            outline: 2px solid var(--lime);
            outline-offset: -2px;
        }

        .accordion-body {
            background: var(--surface);
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.75;
            padding: 0 22px 22px;
        }

        /* CTA */
        .cta-final {
            padding: var(--space-section) 0;
        }

        .cta-box {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            padding: clamp(52px, 8vw, 88px) clamp(22px, 4vw, 72px);
            text-align: center;
            background-image: url("/assets/images/backpic/back-2.jpg");
            background-size: cover;
            background-position: center 40%;
            border: 1px solid var(--line);
        }

        .cta-box::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(13, 15, 20, .82), rgba(13, 15, 20, .9));
        }

        .cta-box>* {
            position: relative;
            z-index: 1;
        }

        .cta-box h2 {
            max-width: 740px;
            margin-left: auto;
            margin-right: auto;
            margin-bottom: 22px;
        }

        .cta-box .cta-note {
            color: var(--text-sub);
            font-size: 14px;
            max-width: 560px;
            margin: 18px auto 0;
        }

        .cta-line {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            margin-bottom: 16px;
            color: var(--text-muted);
            font-size: 13px;
        }

        .cta-line i {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--lime);
        }

        /* 页脚 */
        .site-footer {
            border-top: 1px solid var(--line);
            background: #0A0C0F;
            padding-top: 56px;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 44px;
            padding: 22px 0 26px;
            border-top: 1px solid var(--line);
            color: var(--text-muted);
            font-size: 13px;
        }

        .footer-desc {
            max-width: 380px;
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.75;
            margin-top: 16px;
        }

        .footer-title {
            font-size: 13px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: .06em;
        }

        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: grid;
            gap: 10px;
        }

        .footer-links a {
            color: var(--text-sub);
            font-size: 14px;
        }

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

        .footer-tip {
            background: rgba(255, 255, 255, .03);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 14px 16px;
            color: var(--text-sub);
            font-size: 13px;
            line-height: 1.65;
            margin-bottom: 0;
        }

        /* 动画 */
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(16px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .reveal {
            animation: fadeUp .8s ease both;
        }

        .reveal-d1 {
            animation-delay: .05s;
        }

        .reveal-d2 {
            animation-delay: .12s;
        }

        .reveal-d3 {
            animation-delay: .2s;
        }

        /* 响应式 */
        @media (max-width: 1199.98px) {
            .nav-search .form-control {
                width: 150px;
            }
            .nav-search .form-control:focus {
                width: 200px;
            }
        }

        @media (max-width: 991.98px) {
            .site-nav .container {
                flex-wrap: nowrap;
            }
            .navbar-collapse {
                background: var(--surface);
                border: 1px solid var(--line);
                border-radius: var(--radius-lg);
                padding: 18px 16px;
                margin-top: 12px;
                box-shadow: var(--shadow-1);
            }
            .site-nav .navbar-nav {
                gap: 2px;
                text-align: center;
                margin-bottom: 12px;
            }
            .site-nav .nav-link {
                padding: 10px 14px;
            }
            .nav-actions {
                flex-wrap: wrap;
                justify-content: center;
                border-top: 1px solid var(--line);
                padding-top: 14px;
            }
            .nav-search {
                width: 100%;
            }
            .nav-search .form-control,
            .nav-search .form-control:focus {
                width: 100%;
            }
            .nav-mobile-cta {
                display: inline-flex;
            }
            .pain-track::before {
                left: 38px;
            }
            .pain-item {
                grid-template-columns: 48px 1fr;
                gap: 12px 12px;
            }
            .pain-time {
                font-size: 13px;
                padding-top: 2px;
            }
            .pain-time::after {
                right: -15px;
                top: 9px;
            }
            .pain-tag {
                display: none;
            }
            .hero-console {
                transform: none;
                margin-top: 30px;
            }
            .sol-media {
                margin-top: 28px;
            }
        }

        @media (max-width: 767.98px) {
            body {
                font-size: 14px;
            }
            .section-kicker {
                font-size: 11px;
            }
            .home-hero {
                padding: 70px 0 60px;
            }
            .hero-backdrop {
                opacity: .28;
            }
            .hero-data {
                gap: 14px;
                margin-top: 30px;
            }
            .hero-data .data-cell {
                flex: 1 1 35%;
            }
            .sol-list li {
                grid-template-columns: 36px 1fr;
                gap: 10px 12px;
            }
            .sol-tc {
                display: none;
            }
            .footer-bottom,
            .footer-bottom {
                flex-direction: column;
                gap: 4px;
            }
        }

        @media (max-width: 575.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .btn {
                width: 100%;
            }
            .nav-search .form-control {
                height: 42px;
            }
            .console-row {
                padding: 11px 10px;
            }
            .console-name {
                font-size: 13px;
            }
            .console-dur {
                font-size: 10px;
                padding: 2px 6px;
            }
            .site-nav .container {
                padding-left: 14px;
                padding-right: 14px;
            }
        }

/* roulang page: category1 */
:root {
  --bg: #0D0F14;
  --surface: #161920;
  --surface-2: #1D212B;
  --line: rgba(255, 255, 255, .08);
  --lime: #D9F85C;
  --orange: #FF8A3D;
  --pink: #FF4D6D;
  --text: #F2F3EE;
  --text-sub: #ADB2B0;
  --text-muted: #7A817F;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 26px;
  --shadow-1: 0 12px 40px rgba(0, 0, 0, .35);
  --shadow-2: 0 4px 20px rgba(0, 0, 0, .25);
  --space-section: clamp(64px, 8vw, 112px);
  --container-w: 1290px;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 15px;
  line-height: 1.65;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

.container {
  max-width: var(--container-w);
  padding-left: 22px;
  padding-right: 22px;
}

.section {
  padding: var(--space-section) 0;
  position: relative;
}

.section-caption {
  max-width: 720px;
}

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--lime);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.section-kicker::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--lime);
  display: inline-block;
  border-radius: 99px;
}

.lead-copy {
  color: var(--text-sub);
  font-size: 16px;
  line-height: 1.75;
}

.hero-hl {
  color: var(--lime);
}

.text-sub {
  color: var(--text-sub);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  font-weight: 700;
  padding: 10px 22px;
  text-decoration: none;
  transition: transform .18s ease, box-shadow .18s ease, background .2s ease, border-color .2s ease;
  border: 1px solid transparent;
  font-size: 15px;
  line-height: 1.4;
}

.btn:hover {
  color: inherit;
  transform: translateY(-2px);
}

.btn-main {
  background: var(--orange);
  color: #0D0F14;
  border-color: var(--orange);
  box-shadow: 0 6px 18px rgba(255, 138, 61, .24);
}

.btn-main:hover {
  background: #ffa363;
  color: #0D0F14;
  box-shadow: 0 8px 24px rgba(255, 138, 61, .32);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: rgba(255, 255, 255, .22);
}

.btn-ghost:hover {
  border-color: var(--lime);
  color: var(--lime);
  background: rgba(217, 248, 92, .06);
}

.btn-cta {
  background: var(--orange);
  border-color: var(--orange);
  color: #0D0F14;
  font-weight: 800;
  padding: 9px 18px;
  font-size: 14px;
  box-shadow: 0 6px 20px rgba(255, 138, 61, .2);
}

.btn-cta:hover {
  background: #ffa363;
  border-color: #ffa363;
  color: #0D0F14;
}

.btn-lime {
  background: var(--lime);
  border-color: var(--lime);
  color: #14170B;
  font-weight: 800;
}

.btn-lime:hover {
  background: #e9ff8a;
  border-color: #e9ff8a;
  color: #14170B;
}

.btn-lg-cta {
  padding: 16px 44px;
  font-size: 18px;
  background: var(--orange);
  color: #0D0F14;
  border-radius: 999px;
  border: none;
  box-shadow: 0 10px 40px rgba(255, 138, 61, .28);
}

.btn-lg-cta:hover {
  background: #ffa363;
  color: #0D0F14;
  transform: translateY(-2px);
}

.btn-sm-cta {
  padding: 7px 16px;
  font-size: 13px;
  background: var(--orange);
  border: 1px solid var(--orange);
  color: #0D0F14;
  font-weight: 700;
  border-radius: 999px;
  box-shadow: none;
  transition: background .2s ease, border-color .2s ease, color .2s ease;
}

.btn-sm-cta:hover {
  background: #fff1c9;
  border-color: #fff1c9;
  color: #0D0F14;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 1080;
  min-height: 74px;
  background: rgba(13, 15, 20, .9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.site-nav .navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 21px;
  font-weight: 900;
  color: var(--text);
  letter-spacing: .02em;
  margin-right: 0;
  padding: 12px 0;
}

.brand-name .brand-accent {
  color: var(--lime);
}

.site-nav .navbar-nav {
  gap: 4px;
}

.site-nav .nav-link {
  color: var(--text-sub);
  font-weight: 600;
  font-size: 14px;
  padding: 8px 14px;
  border-radius: 999px;
}

.site-nav .nav-link:hover,
.site-nav .nav-link:focus {
  color: var(--text);
  background: rgba(255, 255, 255, .04);
}

.site-nav .nav-link.active {
  color: var(--lime);
  background: rgba(217, 248, 92, .08);
}

.nav-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.nav-search {
  position: relative;
  max-width: 260px;
  flex: 1 1 200px;
}

.nav-search .search-input {
  width: 100%;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .04);
  border-radius: 999px;
  padding: 8px 14px 8px 34px;
  color: var(--text);
  font-size: 13px;
  transition: width .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.nav-search .search-input:focus {
  width: 100%;
  border-color: var(--lime);
  box-shadow: 0 0 0 3px rgba(217, 248, 92, .12);
  outline: none;
}

.search-ico {
  position: absolute;
  left: 13px;
  top: 50%;
  transform: translateY(-50%);
  width: 14px;
  height: 14px;
  border: 2px solid var(--text-muted);
  border-radius: 50%;
  pointer-events: none;
}

.search-ico::after {
  content: "";
  position: absolute;
  right: -4px;
  bottom: -2px;
  width: 6px;
  height: 2px;
  background: var(--text-muted);
  border-radius: 99px;
  transform: rotate(45deg);
}

.navbar-toggler {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .04);
  border-radius: 10px;
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 3px rgba(217, 248, 92, .14);
}

.navbar-toggler-icon {
  background-image: none;
  position: relative;
  width: 20px;
  height: 14px;
}

.navbar-toggler-icon::before,
.navbar-toggler-icon::after {
  content: "";
  position: absolute;
  height: 2px;
  width: 100%;
  left: 0;
  background: var(--text);
  border-radius: 99px;
  transition: transform .2s ease;
}

.navbar-toggler-icon::before {
  top: 0;
}

.navbar-toggler-icon::after {
  bottom: 0;
}

@media (min-width: 992px) {
  .nav-search .search-input {
    width: 200px;
  }

  .nav-search .search-input:focus {
    width: 300px;
  }
}

@media (max-width: 991.98px) {
  .site-nav {
    min-height: 64px;
  }

  .site-nav .navbar-collapse {
    padding: 16px 0;
    border-top: 1px solid var(--line);
    margin-top: 6px;
  }

  .site-nav .navbar-nav {
    align-items: center;
    margin-bottom: 14px;
  }

  .nav-actions {
    flex-wrap: wrap;
  }

  .nav-search {
    width: 100%;
    max-width: none;
    flex: 0 0 100%;
  }
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #101218;
  padding: 60px 0 22px;
  color: var(--text-sub);
  font-size: 14px;
}

.site-footer .navbar-brand {
  font-size: 20px;
}

.footer-desc {
  max-width: 400px;
  color: var(--text-sub);
  margin: 16px 0 0;
  line-height: 1.7;
}

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

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links a {
  color: var(--text-sub);
  font-size: 14px;
}

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

.footer-tip {
  color: var(--text-muted);
  line-height: 1.7;
  margin: 0;
}

.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: 18px;
  margin-top: 40px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--text-muted);
  font-size: 13px;
}

.category-hero {
  position: relative;
  background:
    radial-gradient(circle at 82% 20%, rgba(217, 248, 92, .06), transparent 28%),
    linear-gradient(180deg, #11141c 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--line);
  padding: 52px 0 44px;
}

.crumb-wrap {
  margin-bottom: 18px;
  color: var(--text-muted);
  font-size: 13px;
}

.crumb-wrap a {
  color: var(--text-muted);
}

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

.crumb-wrap .crumb-sep {
  margin: 0 8px;
  opacity: .5;
}

.breadcrumb {
  margin-bottom: 0;
  background: transparent;
  padding: 0;
}

.breadcrumb-item,
.breadcrumb-item a,
.breadcrumb-item.active {
  color: var(--text-sub);
  font-size: 13px;
}

.breadcrumb-item+.breadcrumb-item::before {
  color: var(--text-muted);
  content: "/";
}

.category-hero h1 {
  font-size: clamp(32px, 4.4vw, 54px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: .015em;
  margin-bottom: 14px;
  max-width: 680px;
}

.category-hero .hero-desc {
  color: var(--text-sub);
  font-size: 16px;
  line-height: 1.8;
  max-width: 620px;
  margin-bottom: 20px;
}

.hero-panel-wrap {
  position: relative;
}

.hero-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  padding: 12px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, .42);
}

.hero-panel .panel-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 6px 12px;
  color: var(--text-sub);
  font-size: 12px;
  font-weight: 600;
}

.hero-panel .panel-top .dots {
  display: inline-flex;
  gap: 6px;
}

.hero-panel .panel-top .dot {
  width: 10px;
  height: 10px;
  border-radius: 99px;
  background: var(--line);
}

.hero-panel .panel-top .dot:first-child {
  background: var(--pink);
}

.hero-panel .panel-top .dot:nth-child(2) {
  background: var(--orange);
}

.hero-panel .panel-top .dot:last-child {
  background: var(--lime);
}

.hero-cover {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
}

.hero-cover img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  transition: transform .4s ease;
}

.hero-cover:hover img {
  transform: scale(1.02);
}

.hero-cover .cover-mask {
  position: absolute;
  inset: auto 0 0 0;
  height: 50%;
  background: linear-gradient(180deg, transparent, rgba(13, 15, 20, .88));
}

.hero-cover .playline {
  position: absolute;
  left: 16px;
  bottom: 14px;
  right: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero-cover .playline i {
  width: 9px;
  height: 9px;
  border-radius: 99px;
  background: var(--pink);
  box-shadow: 0 0 0 3px rgba(255, 77, 109, .22);
}

.hero-cover .playline span {
  color: var(--text);
  font-size: 12px;
  line-height: 1.4;
}

.hero-panel .panel-line {
  height: 3px;
  background: var(--line);
  border-radius: 99px;
  margin: 12px 0 10px;
  overflow: hidden;
  position: relative;
}

.hero-panel .panel-line b {
  display: block;
  height: 100%;
  background: var(--lime);
  border-radius: 99px;
  width: 54%;
}

.panel-note {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  color: var(--text-sub);
  font-size: 12px;
  padding: 0 6px;
}

.panel-note .timecode {
  color: var(--pink);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: .02em;
}

.filter-section {
  border-bottom: 1px solid var(--line);
  background: #11141B;
  padding: 18px 0;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 8px 0;
}

.filter-group + .filter-group {
  border-top: 1px solid var(--line);
}

.filter-label {
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 700;
  width: 56px;
  flex: 0 0 auto;
}

.filter-chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.chip {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .04);
  color: var(--text-sub);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  cursor: pointer;
  transition: all .2s ease;
}

.chip:hover {
  border-color: rgba(217, 248, 92, .4);
  color: var(--lime);
}

.chip.active {
  border-color: var(--lime);
  background: rgba(217, 248, 92, .1);
  color: var(--lime);
}

.watch-pipeline {
  background:
    linear-gradient(180deg, #11141C, var(--bg) 100%);
}

.watch-pipeline .time-row {
  border-left: 2px solid var(--line);
  padding-left: 26px;
  position: relative;
  margin-bottom: 22px;
  transition: border-color .2s ease;
}

.watch-pipeline .time-row:hover {
  border-left-color: var(--lime);
}

.watch-pipeline .time-row::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 5px;
  width: 10px;
  height: 10px;
  border-radius: 99px;
  background: var(--surface-2);
  border: 2px solid var(--lime);
  box-shadow: 0 0 0 3px rgba(217, 248, 92, .1);
}

.time-code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  color: var(--lime);
  letter-spacing: .04em;
  display: inline-block;
  background: rgba(217, 248, 92, .08);
  border-radius: 6px;
  padding: 2px 8px;
  margin-bottom: 8px;
}

.watch-pipeline h3 {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 6px;
}

.watch-pipeline .watch-desc {
  color: var(--text-sub);
  font-size: 14px;
  margin-bottom: 8px;
  max-width: 520px;
}

.watch-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 0;
}

.watch-tags span {
  color: var(--text-muted);
  font-size: 12px;
  border: 1px solid var(--line);
  padding: 3px 10px;
  border-radius: 99px;
}

.playlist-guide-section {
  background: var(--bg);
}

.section-heading {
  font-size: clamp(25px, 3.2vw, 35px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: .01em;
}

.section-heading .heading-hl {
  color: var(--lime);
}

.content-caption {
  color: var(--text-sub);
  font-size: 15px;
  margin-top: 8px;
}

.featured-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-1);
  transition: border-color .2s ease;
}

.featured-card:hover {
  border-color: rgba(217, 248, 92, .35);
}

.featured-card .featured-media {
  position: relative;
  min-height: 340px;
  overflow: hidden;
}

.featured-card .featured-media img {
  width: 100%;
  height: 100%;
  position: absolute;
  inset: 0;
  object-fit: cover;
  transition: transform .4s ease;
}

.featured-card:hover .featured-media img {
  transform: scale(1.03);
}

.featured-card .featured-body {
  padding: 28px;
}

.featured-card .media-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.editor-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--pink);
  color: #16080B;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  padding: 4px 12px;
}

.type-badge {
  display: inline-flex;
  align-items: center;
  color: var(--lime);
  border: 1px solid rgba(217, 248, 92, .35);
  background: rgba(217, 248, 92, .06);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
}

.fcard-title {
  font-size: 22px;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 12px;
}

.fcard-summary {
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.75;
  margin-bottom: 18px;
}

.meta-line {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  color: var(--text-muted);
  font-size: 12px;
  margin-bottom: 18px;
}

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

.playlist-item-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.playlist-item-card:hover {
  transform: translateY(-4px);
  border-color: rgba(217, 248, 92, .48);
  box-shadow: 0 14px 40px rgba(0, 0, 0, .3);
}

.playlist-item-card .card-media {
  overflow: hidden;
  position: relative;
  aspect-ratio: 16 / 9;
}

.playlist-item-card .card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}

.playlist-item-card:hover .card-media img {
  transform: scale(1.04);
}

.playlist-item-card .card-title {
  font-size: 17px;
  font-weight: 800;
  line-height: 1.4;
  margin: 16px 18px 8px;
}

.playlist-item-card .card-title a {
  color: var(--text);
}

.playlist-item-card .card-title a:hover {
  color: var(--lime);
}

.playlist-item-card .card-summary {
  color: var(--text-sub);
  font-size: 13px;
  line-height: 1.7;
  margin: 0 18px 14px;
  flex: 1;
}

.item-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 7px;
  margin: 0 18px 16px;
}

.item-tag {
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--line);
  color: var(--text-muted);
  font-size: 12px;
  border-radius: 999px;
  padding: 3px 10px;
}

.card-foot {
  border-top: 1px solid var(--line);
  padding: 10px 18px;
  display: flex;
  justify-content: space-between;
  gap: 8px;
  align-items: center;
  color: var(--text-muted);
  font-size: 12px;
}

.card-foot .duration {
  color: var(--pink);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.seo-copy-section {
  border-top: 1px solid var(--line);
  background: #11141B;
}

.seo-copy {
  max-width: 820px;
}

.seo-copy h3 {
  color: var(--text);
  font-size: 19px;
  font-weight: 800;
  margin-top: 22px;
  margin-bottom: 8px;
}

.seo-copy p {
  color: var(--text-sub);
  line-height: 1.85;
  margin-bottom: 12px;
}

.faq-section {
  background: var(--bg);
}

.faq-list {
  max-width: 800px;
}

.faq-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color .2s ease, box-shadow .2s ease;
}

.faq-card:has(.accordion-button:not(.collapsed)) {
  border-left: 3px solid var(--lime);
  border-color: rgba(217, 248, 92, .3);
}

.faq-card .accordion-item {
  background: transparent;
  border: 0;
}

.faq-card .accordion-button {
  background: transparent;
  color: var(--text);
  font-weight: 700;
  font-size: 15px;
  padding: 20px 22px;
  box-shadow: none;
}

.faq-card .accordion-button::before {
  content: "+";
  font-size: 22px;
  line-height: 1;
  font-weight: 400;
  color: var(--lime);
  transition: transform .2s ease;
  margin-right: 12px;
}

.faq-card .accordion-button:not(.collapsed)::before {
  transform: rotate(45deg);
}

.faq-card .accordion-button:focus {
  box-shadow: none;
  outline: none;
}

.faq-card .accordion-body {
  color: var(--text-sub);
  font-size: 14px;
  padding: 0 22px 20px 50px;
}

.final-cta {
  position: relative;
  border-radius: 0;
  overflow: hidden;
  background: linear-gradient(rgba(13, 15, 20, .82), rgba(13, 15, 20, .78)),
    url('/assets/images/backpic/back-2.jpg') center / cover no-repeat;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: clamp(72px, 9vw, 120px) 0;
  text-align: center;
}

.final-cta .cta-hint {
  color: var(--lime);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.final-cta h2 {
  font-size: clamp(27px, 4vw, 42px);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
}

.final-cta p {
  color: var(--text-sub);
  font-size: 16px;
  max-width: 520px;
  margin: 0 auto 28px;
}

@media (max-width: 767.98px) {
  .card-grid {
    grid-template-columns: 1fr;
  }

  .featured-card .featured-media {
    min-height: 220px;
    position: relative;
  }

  .featured-card .featured-media img {
    position: relative;
    height: auto;
  }

  .featured-card .featured-body {
    padding: 20px;
  }

  .filter-group {
    align-items: flex-start;
  }

  .filter-group + .filter-group {
    border-top: 0;
    padding-top: 0;
  }

  .filter-label {
    width: 48px;
  }

  .category-hero {
    padding-top: 34px;
  }

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

@media (min-width: 768px) and (max-width: 1199.98px) {
  .featured-card .featured-media {
    min-height: 280px;
  }
}

@media (max-width: 991.98px) {
  .nav-actions {
    flex-wrap: wrap;
    padding-bottom: 16px;
  }

  .nav-search {
    flex: 0 0 100%;
    max-width: none;
  }

  .site-nav .navbar-collapse {
    padding-bottom: 0;
  }
}

@media (min-width: 992px) {
  .cat-hero-panel {
    padding-left: 30px;
  }
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}