/* roulang page: index */
:root {
            --color-ink: #191613;
            --color-ink-soft: #25211c;
            --color-tiger: #E05A24;
            --color-tiger-deep: #B8431A;
            --color-gold: #B8824A;
            --color-gold-light: #D2A071;
            --color-cream: #F5F0E8;
            --color-cream-light: #FAF7F2;
            --color-text: #211D18;
            --color-text-2: #655C52;
            --color-on-dark: #F6F0E6;
            --color-line: rgba(25, 22, 19, 0.12);
            --color-line-dark: rgba(255, 255, 255, 0.14);
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-pill: 999px;
            --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.03), 0 12px 30px rgba(58, 35, 10, 0.06);
            --shadow-float: 0 18px 40px rgba(58, 35, 10, 0.12);
            --container: 1200px;
            --header-h: 108px;
            --section-space: clamp(64px, 9vw, 128px);
            --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            margin: 0;
            font-family: system-ui, -apple-system, "PingFang SC", "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
            background: var(--color-cream);
            color: var(--color-text);
            line-height: 1.65;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

        ul,
        ol,
        p,
        h1,
        h2,
        h3,
        figure,
        blockquote {
            margin: 0;
        }

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

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

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

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

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        .skip-link {
            position: fixed;
            top: -80px;
            left: 16px;
            z-index: 9999;
            background: var(--color-tiger);
            color: #fff;
            padding: 10px 18px;
            border-radius: 0 0 8px 8px;
            font-weight: 700;
            transition: top 0.25s var(--ease);
        }

        .skip-link:focus {
            top: 0;
            color: #fff;
        }

        :focus-visible {
            outline: 2px solid var(--color-gold-light);
            outline-offset: 3px;
            border-radius: 3px;
        }

        .container {
            max-width: var(--container);
            margin-inline: auto;
            padding-inline: clamp(20px, 4vw, 32px);
        }

        .section-spacer {
            padding-block: var(--section-space);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            min-height: 46px;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 15px;
            line-height: 1.2;
            border: 1px solid transparent;
            transition: background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease), transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
        }

        .btn svg {
            width: 15px;
            height: 15px;
            flex: none;
        }

        .btn-primary {
            background: var(--color-tiger);
            color: #fff;
            box-shadow: 0 6px 16px rgba(224, 90, 36, 0.18);
        }

        .btn-primary:hover {
            background: var(--color-tiger-deep);
            transform: translateY(-1px);
            box-shadow: 0 10px 22px rgba(184, 67, 26, 0.22);
        }

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

        .btn-secondary {
            background: transparent;
            border-color: var(--color-line);
            color: var(--color-text);
        }

        .btn-secondary:hover {
            background: var(--color-ink);
            border-color: var(--color-ink);
            color: var(--color-on-dark);
            transform: translateY(-1px);
        }

        .btn-sm {
            min-height: 40px;
            padding: 7px 18px;
            font-size: 14px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 120;
            background: rgba(250, 247, 242, 0.94);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-line);
            transition: box-shadow 0.25s var(--ease);
        }

        .site-header.is-scrolled {
            box-shadow: 0 8px 24px rgba(25, 22, 19, 0.08);
        }

        .header-main {
            display: flex;
            align-items: center;
            gap: 36px;
            height: 68px;
            justify-content: space-between;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 11px;
            flex: none;
        }

        .brand-mark {
            position: relative;
            display: inline-flex;
            align-items: stretch;
            gap: 2px;
            width: 20px;
            height: 26px;
        }

        .brand-mark i {
            display: block;
            flex: 1;
            background: var(--color-ink);
        }

        .brand-mark i:last-child {
            background: var(--color-tiger);
        }

        .brand-name {
            font-weight: 800;
            font-size: 23px;
            letter-spacing: 0.06em;
            color: var(--color-text);
        }

        .site-nav {
            margin-inline: auto;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 38px;
        }

        .nav-link {
            display: inline-block;
            position: relative;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            padding: 8px 0;
            transition: color 0.2s var(--ease);
        }

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

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

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

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

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex: none;
        }

        .menu-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            border: 1px solid var(--color-line);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            background: var(--color-cream-light);
        }

        .menu-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            border-radius: 2px;
            background: var(--color-ink);
            transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
        }

        .header-strip {
            border-top: 1px solid rgba(25, 22, 19, 0.06);
            min-height: 40px;
            background: rgba(245, 240, 232, 0.86);
            transition: opacity 0.2s var(--ease), min-height 0.2s var(--ease);
        }

        .strip-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            min-height: 40px;
        }

        .strip-note {
            font-size: 13px;
            color: var(--color-text-2);
            letter-spacing: 0.02em;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .strip-chips {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: none;
        }

        .chip-link {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 26px;
            padding: 2px 14px;
            border-radius: var(--radius-pill);
            background: var(--color-ink);
            color: var(--color-on-dark);
            font-size: 13px;
            font-weight: 600;
            transition: background 0.2s var(--ease), color 0.2s var(--ease), transform 0.2s var(--ease);
        }

        .chip-link:hover {
            background: var(--color-tiger);
            color: #fff;
            transform: translateY(-1px);
        }

        .chip-link.is-active {
            background: var(--color-tiger);
            color: #fff;
        }

        .mobile-drawer {
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            z-index: 110;
            background: var(--color-cream-light);
            border-bottom: 1px solid var(--color-line);
            padding: 24px clamp(20px, 4vw, 32px) 28px;
            box-shadow: var(--shadow-float);
            display: none;
            transform: translateY(-10px);
            opacity: 0;
            transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
        }

        .mobile-drawer.is-open {
            transform: translateY(0);
            opacity: 1;
        }

        .mobile-nav-list {
            display: flex;
            flex-direction: column;
            gap: 4px;
            margin-bottom: 18px;
        }

        .mobile-nav-list a {
            display: block;
            padding: 12px 4px;
            border-bottom: 1px solid var(--color-line);
            font-weight: 700;
            font-size: 17px;
        }

        .mobile-nav-list a.is-active {
            color: var(--color-tiger);
        }

        .mobile-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 16px;
        }

        .mobile-drawer .btn {
            width: 100%;
            margin-top: 18px;
        }

        .hero-dash {
            position: relative;
            background: var(--color-cream);
            padding: clamp(72px, 10vw, 128px) 0 0;
            overflow: hidden;
        }

        .hero-dash::before {
            content: "";
            position: absolute;
            top: 0;
            right: -20%;
            width: 540px;
            height: 540px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(224, 90, 36, 0.08), transparent 68%);
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: minmax(0, 1.12fr) minmax(300px, 0.88fr);
            align-items: start;
            gap: clamp(40px, 5vw, 72px);
            position: relative;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.6);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-pill);
            padding: 5px 14px 5px 10px;
            font-size: 13px;
            font-weight: 700;
            color: var(--color-tiger-deep);
            margin-bottom: 24px;
        }

        .hero-tag-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-tiger);
            box-shadow: 0 0 0 4px rgba(224, 90, 36, 0.14);
        }

        .hero-title {
            font-size: clamp(34px, 5.2vw, 58px);
            line-height: 1.12;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--color-text);
            max-width: 620px;
        }

        .hero-title em {
            font-style: normal;
            color: var(--color-tiger);
        }

        .hero-lead {
            margin-top: 24px;
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text-2);
            max-width: 580px;
        }

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

        .hero-refs {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 28px;
            margin-top: clamp(48px, 6vw, 72px);
            padding-bottom: 8px;
            border-top: 1px solid var(--color-line);
            padding-top: 22px;
        }

        .hero-ref {
            display: flex;
            align-items: center;
            gap: 12px;
            min-width: 180px;
        }

        .hero-ref img {
            width: 48px;
            height: 48px;
            object-fit: cover;
            border-radius: 6px;
        }

        .hero-ref-text {
            display: flex;
            flex-direction: column;
        }

        .hero-ref-text strong {
            font-size: 14px;
            font-weight: 700;
        }

        .hero-ref-text span {
            font-size: 12px;
            color: var(--color-text-2);
            margin-top: 2px;
        }

        .hero-panel {
            background: var(--color-ink);
            border-radius: var(--radius-lg);
            color: var(--color-on-dark);
            padding: clamp(24px, 3vw, 34px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 30px 80px rgba(25, 22, 19, 0.2);
            position: relative;
            margin-top: 6px;
        }

        .panel-kicker {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: rgba(246, 240, 230, 0.72);
            letter-spacing: 0.02em;
            padding-bottom: 18px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        }

        .panel-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--color-tiger);
            box-shadow: 0 0 0 4px rgba(224, 90, 36, 0.16);
        }

        .metric-list {
            margin-top: 8px;
        }

        .metric-item {
            padding: 20px 0 18px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .metric-item:last-child {
            border-bottom: none;
            padding-bottom: 6px;
        }

        .metric-top {
            display: flex;
            align-items: baseline;
            gap: 8px;
            font-variant-numeric: tabular-nums;
        }

        .metric-num {
            font-size: clamp(38px, 4vw, 52px);
            font-weight: 800;
            line-height: 1;
            color: var(--color-gold-light);
            letter-spacing: -0.02em;
        }

        .metric-unit {
            font-size: 16px;
            font-weight: 700;
            color: rgba(246, 240, 230, 0.8);
        }

        .metric-desc {
            margin-top: 8px;
            font-size: 13px;
            color: rgba(246, 240, 230, 0.6);
            line-height: 1.6;
        }

        .panel-note {
            margin-top: 16px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius);
            padding: 12px 14px;
            font-size: 12px;
            color: rgba(246, 240, 230, 0.62);
            line-height: 1.6;
        }

        .matrix {
            background: var(--color-cream-light);
        }

        .matrix-head {
            display: grid;
            grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.6fr);
            gap: 32px;
            align-items: end;
            margin-bottom: clamp(32px, 4vw, 48px);
        }

        .section-index {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            font-weight: 700;
            color: var(--color-tiger-deep);
            letter-spacing: 0.06em;
            margin-bottom: 14px;
        }

        .section-index::before {
            content: "";
            width: 22px;
            height: 2px;
            background: var(--color-tiger);
            display: inline-block;
        }

        .h2 {
            font-size: clamp(28px, 3.4vw, 40px);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.01em;
            color: var(--color-text);
        }

        .matrix-head .section-lead {
            font-size: 15px;
            color: var(--color-text-2);
            line-height: 1.75;
            padding-bottom: 6px;
        }

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

        .service-card {
            position: relative;
            background: #fff;
            border: 1px solid var(--color-line);
            border-radius: var(--radius);
            padding: clamp(24px, 3vw, 34px);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), border-color 0.25s var(--ease);
        }

        .service-card::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: #ddd5c9;
            transition: background 0.25s var(--ease);
        }

        .service-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-float);
            border-color: rgba(224, 90, 36, 0.24);
        }

        .service-card:hover::before {
            background: var(--color-tiger);
        }

        .service-card:focus-within {
            outline: 2px solid var(--color-gold-light);
            outline-offset: 2px;
        }

        .service-top {
            display: flex;
            flex-direction: column;
            min-height: 248px;
        }

        .service-index {
            font-size: 13px;
            font-weight: 800;
            color: var(--color-tiger);
            letter-spacing: 0.08em;
            font-variant-numeric: tabular-nums;
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: clamp(21px, 2vw, 26px);
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-text);
        }

        .service-card p {
            font-size: 15px;
            color: var(--color-text-2);
            line-height: 1.75;
            margin-top: 14px;
            max-width: 45ch;
        }

        .service-bottom {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            border-top: 1px solid var(--color-line);
            margin-top: 24px;
            padding-top: 18px;
        }

        .swatches {
            display: flex;
            gap: 6px;
        }

        .swatches span {
            width: 18px;
            height: 18px;
            border-radius: 4px;
            border: 1px solid rgba(0, 0, 0, 0.08);
        }

        .ghost-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 700;
            color: var(--color-text);
            transition: color 0.2s var(--ease), gap 0.2s var(--ease);
        }

        .ghost-link svg {
            width: 14px;
            height: 14px;
            flex: none;
            transition: transform 0.2s var(--ease);
        }

        .ghost-link:hover {
            color: var(--color-tiger);
        }

        .ghost-link:hover svg {
            transform: translateX(4px);
        }

        .section-result {
            background: var(--color-ink);
            position: relative;
            color: var(--color-on-dark);
            padding: var(--section-space) 0;
            isolation: isolate;
        }

        .section-result::before {
            content: "";
            position: absolute;
            inset: 0;
            z-index: -1;
            background-image: url('/assets/images/backpic/back-3.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
        }

        .result-head {
            display: grid;
            grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
            gap: 36px;
            align-items: end;
            margin-bottom: clamp(36px, 5vw, 56px);
        }

        .result-head .section-index {
            color: var(--color-gold-light);
        }

        .result-head .h2 {
            color: var(--color-on-dark);
        }

        .result-head .section-lead {
            color: rgba(246, 240, 230, 0.64);
            font-size: 15px;
            line-height: 1.75;
        }

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

        .compare-card {
            background: rgba(255, 255, 255, 0.035);
            border: 1px solid var(--color-line-dark);
            border-radius: var(--radius);
            overflow: hidden;
            transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
        }

        .compare-card:hover {
            border-color: rgba(224, 90, 36, 0.55);
            transform: translateY(-2px);
        }

        .compare-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 18px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.03em;
        }

        .compare-head-badge {
            font-weight: 600;
            font-size: 12px;
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            border: 1px solid rgba(255, 255, 255, 0.16);
            color: rgba(246, 240, 230, 0.68);
        }

        .compare-body {
            padding: 20px;
        }

        .screen-mock {
            border-radius: 4px;
            padding: clamp(18px, 2.5vw, 30px);
            min-height: 240px;
            display: flex;
            flex-direction: column;
            gap: 16px;
            transition: background 0.2s var(--ease);
        }

        .mock-nav {
            height: 10px;
            width: 52%;
            border-radius: 3px;
        }

        .mock-topline {
            height: 18px;
            width: 76%;
            border-radius: 4px;
        }

        .mock-middle {
            display: flex;
            gap: 12px;
        }

        .mock-main {
            flex: 1.2;
            height: 76px;
            border-radius: 4px;
        }

        .mock-side {
            flex: 0.8;
            height: 76px;
            border-radius: 4px;
        }

        .mock-btn {
            width: 36%;
            height: 24px;
            border-radius: 4px;
            margin-top: auto;
        }

        .screen-mock--before {
            background: #2c2723;
        }

        .screen-mock--before .mock-nav {
            background: #4d4640;
        }

        .screen-mock--before .mock-topline {
            background: #4d4640;
        }

        .screen-mock--before .mock-main {
            background: #4d4640;
        }

        .screen-mock--before .mock-side {
            background: #3f3934;
        }

        .screen-mock--before .mock-btn {
            background: #6b4134;
        }

        .screen-mock--after {
            background: #f2ece2;
        }

        .screen-mock--after .mock-nav {
            background: #191613;
        }

        .screen-mock--after .mock-topline {
            background: var(--color-tiger);
        }

        .screen-mock--after .mock-main {
            background: #fff0e8;
        }

        .screen-mock--after .mock-side {
            background: #ddd2c4;
        }

        .screen-mock--after .mock-btn {
            background: var(--color-tiger);
        }

        .score-section {
            margin-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 26px;
        }

        .score-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .score-item {
            display: grid;
            gap: 8px;
        }

        .score-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 14px;
            font-weight: 700;
        }

        .score-value {
            font-variant-numeric: tabular-nums;
            font-weight: 700;
            font-size: 13px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .score-value .before-score {
            color: rgba(246, 240, 230, 0.5);
        }

        .score-arrow {
            color: var(--color-gold-light);
        }

        .score-value .after-score {
            color: var(--color-gold-light);
        }

        .score-bars {
            display: grid;
            grid-template-columns: 1fr;
            gap: 6px;
        }

        .bar-wrap {
            display: grid;
            grid-template-columns: 54px 1fr;
            align-items: center;
            gap: 12px;
        }

        .bar-label {
            font-size: 12px;
            color: rgba(246, 240, 230, 0.48);
            text-align: right;
        }

        .bar {
            height: 8px;
            background: rgba(255, 255, 255, 0.12);
            border-radius: 999px;
            overflow: hidden;
        }

        .bar i {
            display: block;
            height: 100%;
            border-radius: inherit;
            background: rgba(246, 240, 230, 0.5);
            transition: width 0.6s var(--ease);
        }

        .bar.is-after i {
            background: var(--color-tiger);
        }

        .result-note {
            margin-top: 20px;
            font-size: 12px;
            color: rgba(246, 240, 230, 0.44);
            line-height: 1.6;
        }

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

        .faq-layout {
            display: grid;
            grid-template-columns: minmax(240px, 0.4fr) minmax(0, 1fr);
            gap: clamp(36px, 6vw, 90px);
        }

        .faq-intro {
            position: relative;
        }

        .faq-intro .h2 {
            margin-top: 6px;
        }

        .faq-intro .section-lead {
            margin-top: 18px;
            color: var(--color-text-2);
            font-size: 15px;
            line-height: 1.75;
        }

        .faq-list {
            border-top: 1px solid var(--color-line);
        }

        .faq-item {
            border-bottom: 1px solid var(--color-line);
        }

        .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            min-height: 52px;
            text-align: left;
            gap: 24px;
            padding: 12px 0;
            cursor: pointer;
            font-weight: 700;
            font-size: 16px;
            color: var(--color-text);
            transition: color 0.2s var(--ease);
        }

        .faq-q:hover {
            color: var(--color-tiger);
        }

        .faq-icon {
            flex: none;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--color-line);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            position: relative;
            transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
        }

        .faq-icon::before,
        .faq-icon::after {
            content: "";
            position: absolute;
            background: var(--color-text-2);
            border-radius: 2px;
            transition: background 0.2s var(--ease), transform 0.3s var(--ease);
        }

        .faq-icon::before {
            width: 10px;
            height: 2px;
        }

        .faq-icon::after {
            width: 2px;
            height: 10px;
        }

        .faq-item.is-open .faq-icon {
            border-color: var(--color-tiger);
        }

        .faq-item.is-open .faq-icon::before {
            background: var(--color-tiger);
            transform: rotate(45deg);
        }

        .faq-item.is-open .faq-icon::after {
            background: var(--color-tiger);
            transform: rotate(45deg);
        }

        .faq-a {
            max-width: 720px;
            font-size: 15px;
            line-height: 1.75;
            color: var(--color-text-2);
            padding-bottom: 4px;
        }

        .faq-a-wrap {
            display: grid;
            grid-template-rows: 0fr;
            transition: grid-template-rows 0.32s var(--ease);
        }

        .faq-a-inner {
            overflow: hidden;
            opacity: 0.6;
            transform: translateY(-6px);
            transition: opacity 0.28s var(--ease), transform 0.28s var(--ease);
        }

        .faq-item.is-open .faq-a-wrap {
            grid-template-rows: 1fr;
        }

        .faq-item.is-open .faq-a-inner {
            opacity: 1;
            transform: translateY(0);
        }

        .cta-zone {
            position: relative;
            background: linear-gradient(0deg, rgba(25, 22, 19, 0.96), rgba(25, 22, 19, 0.94)), url('/assets/images/backpic/back-6.jpg') center center / cover no-repeat;
            color: var(--color-on-dark);
            padding: var(--section-space) 0;
        }

        .cta-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) minmax(360px, 0.9fr);
            gap: clamp(40px, 5vw, 72px);
        }

        .cta-content .section-index {
            color: var(--color-gold-light);
        }

        .cta-content .h2 {
            color: var(--color-on-dark);
        }

        .cta-desc {
            margin-top: 20px;
            font-size: 15px;
            line-height: 1.8;
            color: rgba(246, 240, 230, 0.7);
            max-width: 460px;
        }

        .process-points {
            margin-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
        }

        .process-point {
            display: grid;
            grid-template-columns: 38px 1fr;
            gap: 14px;
            padding: 18px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        }

        .process-num {
            font-size: 14px;
            color: var(--color-gold-light);
            font-weight: 800;
            line-height: 1.4;
        }

        .process-title {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .process-text {
            font-size: 14px;
            color: rgba(246, 240, 230, 0.64);
            line-height: 1.7;
        }

        .cta-contact-note {
            margin-top: 24px;
            font-size: 13px;
            color: rgba(246, 240, 230, 0.56);
            display: flex;
            gap: 10px;
            align-items: flex-start;
        }

        .cta-contact-note svg {
            width: 17px;
            height: 17px;
            flex: none;
            margin-top: 2px;
        }

        .cform {
            background: var(--color-cream-light);
            border-radius: var(--radius-lg);
            color: var(--color-text);
            padding: clamp(24px, 3vw, 36px);
            box-shadow: 0 30px 90px rgba(0, 0, 0, 0.24);
        }

        .cform-title {
            font-size: 22px;
            font-weight: 800;
            margin-bottom: 6px;
        }

        .cform-sub {
            font-size: 14px;
            color: var(--color-text-2);
            margin-bottom: 24px;
        }

        .field {
            display: flex;
            flex-direction: column;
            gap: 6px;
            margin-bottom: 18px;
        }

        .field label {
            font-size: 13px;
            font-weight: 700;
            color: var(--color-text);
        }

        .field input,
        .field select,
        .field textarea {
            width: 100%;
            border: 0;
            border-bottom: 1px solid var(--color-line);
            background: transparent;
            padding: 8px 0;
            font-size: 16px;
            border-radius: 0;
            color: var(--color-text);
            transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
            appearance: none;
        }

        .field input::placeholder,
        .field textarea::placeholder {
            color: rgba(101, 92, 82, 0.5);
        }

        .field input:focus,
        .field select:focus,
        .field textarea:focus {
            outline: none;
            border-bottom-color: var(--color-tiger);
            border-bottom-width: 2px;
            background: rgba(224, 90, 36, 0.03);
        }

        .field select {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23655C52' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 2px center;
            padding-right: 24px;
        }

        .field textarea {
            resize: vertical;
            min-height: 80px;
        }

        .form-actions {
            display: flex;
            justify-content: flex-end;
            margin-top: 24px;
        }

        .form-privacy {
            margin-top: 12px;
            text-align: right;
            font-size: 12px;
            color: var(--color-text-2);
        }

        .site-footer {
            background: var(--color-ink);
            color: var(--color-on-dark);
            padding: 72px 0 0;
            position: relative;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: minmax(220px, 1.3fr) repeat(3, minmax(140px, 0.7fr));
            gap: 40px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

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

        .footer-brand .brand-name {
            color: var(--color-on-dark);
        }

        .footer-brand-desc {
            font-size: 14px;
            color: rgba(246, 240, 230, 0.6);
            line-height: 1.75;
            max-width: 280px;
        }

        .footer-col h3 {
            font-size: 14px;
            font-weight: 700;
            color: rgba(246, 240, 230, 0.9);
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 9px;
        }

        .footer-col a {
            font-size: 14px;
            color: rgba(246, 240, 230, 0.72);
            transition: color 0.2s var(--ease);
        }

        .footer-col a:hover {
            color: var(--color-tiger);
        }

        .footer-col p {
            font-size: 14px;
            color: rgba(246, 240, 230, 0.62);
            margin-bottom: 6px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 20px 0 24px;
            font-size: 13px;
            color: rgba(246, 240, 230, 0.44);
        }

        .footer-bottom .domain {
            font-variant-numeric: tabular-nums;
        }

        .footer-icp {
            color: rgba(246, 240, 230, 0.44);
        }

        @media (max-width: 1023px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 48px;
            }

            .hero-panel {
                max-width: 680px;
            }

            .hero-title {
                max-width: 720px;
            }

            .hero-dash::before {
                width: 400px;
                height: 400px;
            }

            .matrix-head,
            .result-head,
            .cta-layout {
                grid-template-columns: 1fr;
                gap: 16px;
            }

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

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

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

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

        @media (max-width: 767px) {
            .header-main {
                height: 68px;
                gap: 12px;
            }

            .site-nav,
            .header-strip {
                display: none;
            }

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

            .mobile-drawer {
                display: block;
            }

            .header-actions .btn {
                display: none;
            }

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

            .service-top {
                min-height: auto;
            }

            .score-head {
                align-items: flex-start;
                flex-direction: column;
            }

            .score-value {
                width: 100%;
                justify-content: space-between;
            }

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

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

            .footer-icp {
                margin-left: auto;
            }
        }

        @media (max-width: 520px) {
            .hero-refs {
                flex-direction: column;
                align-items: flex-start;
            }

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

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

            .btn {
                width: 100%;
            }

            .btn-primary,
            .btn-secondary {
                padding-inline: 16px;
            }

            .metric-item {
                padding: 18px 0;
            }

            .metric-num {
                font-size: 40px;
            }

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

            .form-actions {
                justify-content: stretch;
            }

            .cta-zone {
                padding: 56px 0 64px;
            }

            .process-point {
                grid-template-columns: 30px 1fr;
            }
        }

/* roulang page: category1 */
:root {
  --color-ink: #191613;
  --color-ink-soft: #25211c;
  --color-tiger: #E05A24;
  --color-tiger-deep: #B8431A;
  --color-gold: #B8824A;
  --color-gold-light: #D2A071;
  --color-cream: #F5F0E8;
  --color-cream-light: #FAF7F2;
  --color-text: #211D18;
  --color-text-2: #655C52;
  --color-on-dark: #F6F0E6;
  --color-line: rgba(25, 22, 19, 0.12);
  --color-line-dark: rgba(255, 255, 255, 0.14);
  --radius-sm: 6px;
  --radius: 8px;
  --radius-lg: 12px;
  --radius-pill: 999px;
  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.03), 0 12px 30px rgba(58, 35, 10, 0.06);
  --shadow-float: 0 18px 40px rgba(58, 35, 10, 0.12);
  --container: 1200px;
  --header-h: 108px;
  --section-space: clamp(64px, 9vw, 128px);
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "PingFang SC", "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
  background: var(--color-cream);
  color: var(--color-text);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

:focus-visible {
  outline: 2px solid var(--color-tiger);
  outline-offset: 3px;
  border-radius: 2px;
}

.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(20px, 4vw, 32px);
}

.section-spacer {
  padding-block: var(--section-space);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.2;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease), transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.btn svg {
  width: 15px;
  height: 15px;
  flex: none;
  transition: transform 0.2s var(--ease);
}

.btn-primary {
  background: var(--color-tiger);
  color: #fff;
  box-shadow: 0 6px 16px rgba(224, 90, 36, 0.18);
}

.btn-primary:hover {
  background: var(--color-tiger-deep);
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(184, 67, 26, 0.22);
}

.btn-primary:hover svg {
  transform: translateX(3px);
}

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

.btn-secondary {
  background: transparent;
  border-color: var(--color-line);
  color: var(--color-text);
}

.btn-secondary:hover {
  background: var(--color-ink);
  border-color: var(--color-ink);
  color: var(--color-on-dark);
  transform: translateY(-1px);
}

.btn-sm {
  min-height: 40px;
  padding: 7px 18px;
  font-size: 14px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  background: rgba(250, 247, 242, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-line);
  transition: box-shadow 0.25s var(--ease);
}

.site-header.is-scrolled {
  box-shadow: 0 8px 24px rgba(25, 22, 19, 0.08);
}

.header-ribbon {
  height: 40px;
  border-bottom: 1px solid var(--color-line);
  background: rgba(235, 226, 214, 0.5);
}

.header-ribbon-inner {
  height: 39px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.ribbon-tip {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-size: 13px;
  color: var(--color-text-2);
  white-space: nowrap;
  overflow: hidden;
}

.ribbon-tip i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-tiger);
  flex: none;
}

.ribbon-chips {
  display: flex;
  align-items: center;
  gap: 6px;
}

.ribbon-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 22px;
  padding: 2px 11px;
  border-radius: var(--radius-pill);
  background: var(--color-ink);
  color: var(--color-on-dark);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), transform 0.2s var(--ease);
}

.ribbon-chip:hover {
  background: var(--color-tiger);
  transform: translateY(-1px);
}

.ribbon-chip.is-active {
  background: var(--color-tiger);
}

.header-main {
  display: flex;
  align-items: center;
  gap: 36px;
  height: 68px;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex: none;
}

.brand-mark {
  display: inline-flex;
  align-items: stretch;
  gap: 2px;
  width: 20px;
  height: 26px;
}

.brand-mark i {
  display: block;
  flex: 1;
  background: var(--color-ink);
}

.brand-mark i:last-child {
  background: var(--color-tiger);
}

.brand-name {
  font-weight: 800;
  font-size: 23px;
  letter-spacing: 0.06em;
  color: var(--color-text);
}

.site-nav {
  margin-inline: auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 38px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  display: inline-block;
  position: relative;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  padding: 8px 0;
  transition: color 0.2s var(--ease);
}

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

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

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

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-cream-light);
}

.menu-toggle span,
.menu-toggle span::before,
.menu-toggle span::after {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--color-ink);
  border-radius: 2px;
  position: relative;
  transition: transform 0.25s var(--ease), background 0.2s var(--ease);
}

.menu-toggle span::before,
.menu-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
}

.menu-toggle span::before {
  top: -6px;
}

.menu-toggle span::after {
  top: 6px;
}

.site-header.nav-open .menu-toggle span {
  background: transparent;
}

.site-header.nav-open .menu-toggle span::before {
  top: 0;
  transform: rotate(45deg);
}

.site-header.nav-open .menu-toggle span::after {
  top: 0;
  transform: rotate(-45deg);
}

.mobile-drawer {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  display: none;
  background: #fff;
  border-bottom: 1px solid var(--color-line);
  box-shadow: var(--shadow-float);
  padding: 20px 24px 24px;
}

.site-header.nav-open .mobile-drawer {
  display: block;
}

.mobile-drawer .nav-list {
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  margin-bottom: 16px;
}

.mobile-drawer .nav-link {
  display: block;
  padding: 10px 0;
  font-size: 17px;
}

.mobile-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.mobile-drawer .btn {
  width: 100%;
}

.breadcrumb {
  padding-top: 26px;
  padding-bottom: 10px;
  font-size: 14px;
  color: var(--color-text-2);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.breadcrumb a {
  color: var(--color-text-2);
  transition: color 0.2s var(--ease);
}

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

.breadcrumb-sep {
  color: var(--color-gold);
}

.breadcrumb-current {
  color: var(--color-text);
  font-weight: 600;
}

.case-lead {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 48px;
  align-items: end;
  padding-block: 24px 48px;
}

.case-lead h1 {
  margin: 0 0 16px;
  font-size: clamp(32px, 4.4vw, 52px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--color-ink);
  max-width: 720px;
}

.case-lead .lead-desc {
  margin: 0;
  max-width: 720px;
  color: var(--color-text-2);
  font-size: 16.5px;
  line-height: 1.75;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 13px;
  letter-spacing: 0.16em;
  font-weight: 700;
  color: var(--color-tiger);
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
}

.filter-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  max-width: 440px;
  justify-content: flex-end;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 6px 17px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-cream-light);
  color: var(--color-text-2);
  font-size: 14px;
  font-weight: 600;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.pill:hover {
  border-color: var(--color-tiger);
  color: var(--color-tiger);
  transform: translateY(-1px);
}

.pill.is-active {
  background: var(--color-ink);
  border-color: var(--color-ink);
  color: var(--color-on-dark);
}

.featured-wrap {
  padding-bottom: 52px;
}

.featured-card {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  border: 1px solid rgba(25, 22, 19, 0.16);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-cream-light);
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.3s var(--ease), transform 0.3s var(--ease);
}

.featured-card:hover {
  box-shadow: var(--shadow-float);
}

.feat-media {
  position: relative;
  background: var(--color-ink);
  overflow: hidden;
}

.feat-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 16 / 9;
  transition: transform 0.5s var(--ease), opacity 0.3s var(--ease);
}

.featured-card:hover .feat-media img {
  transform: scale(1.02);
}

.featured-card:hover .feat-media::after {
  opacity: 0.35;
}

.feat-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--color-tiger);
  opacity: 0;
  mix-blend-mode: overlay;
  pointer-events: none;
  transition: opacity 0.3s var(--ease);
}

.tag-feature {
  position: absolute;
  top: 18px;
  left: 18px;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 30px;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  background: var(--color-tiger);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.16);
}

.feat-body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(24px, 4vw, 46px);
}

.meta-line {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  font-weight: 600;
  color: var(--color-gold);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.meta-line span {
  color: var(--color-text-2);
  font-weight: 500;
  letter-spacing: normal;
}

.feat-body h2 {
  margin: 0 0 16px;
  font-size: clamp(22px, 2.4vw, 30px);
  line-height: 1.35;
  font-weight: 750;
  color: var(--color-ink);
}

.feat-body p {
  margin: 0 0 24px;
  color: var(--color-text-2);
  font-size: 15.5px;
  line-height: 1.72;
}

.feat-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px 20px;
  border-top: 1px solid var(--color-line);
  padding-top: 18px;
  margin-top: auto;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 15px;
  font-weight: 700;
  color: var(--color-tiger);
  padding: 6px 0;
  position: relative;
}

.text-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 2px;
  height: 1px;
  width: 100%;
  background: var(--color-tiger);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}

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

.text-link svg {
  width: 14px;
  height: 14px;
  transition: transform 0.25s var(--ease);
}

.text-link:hover svg {
  transform: translateX(4px);
}

.date-note {
  font-size: 13px;
  color: var(--color-text-2);
}

.section-tag {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--color-text-2);
  font-size: 14px;
}

.section-tag::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--color-line);
  max-width: 360px;
}

.cases-section {
  padding-block: calc(var(--section-space) * 0.82) var(--section-space);
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 46px;
}

.section-head h2 {
  margin: 0;
  font-size: clamp(25px, 3vw, 34px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  font-weight: 750;
  color: var(--color-ink);
}

.section-head .section-note {
  margin: 0;
  max-width: 480px;
  color: var(--color-text-2);
  font-size: 15px;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 42px 34px;
}

.case-card {
  background: transparent;
}

.case-card:nth-child(even) {
  transform: translateY(42px);
}

.case-thumb {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--color-ink);
  border: 1px solid var(--color-line);
}

.case-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.55s var(--ease), filter 0.3s var(--ease);
}

.case-card:hover .case-thumb {
  box-shadow: var(--shadow-float);
  border-color: rgba(224, 90, 36, 0.3);
}

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

.case-date {
  position: absolute;
  right: 12px;
  bottom: 12px;
  z-index: 2;
  background: rgba(25, 22, 19, 0.82);
  color: var(--color-on-dark);
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 4px;
  backdrop-filter: blur(6px);
}

.case-info {
  padding: 22px 3px 0;
}

.case-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 13px;
}

.case-tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 2px 10px;
  border-radius: 4px;
  background: #F8E3D5;
  color: #A3320C;
  font-size: 12.5px;
  font-weight: 600;
}

.case-info h3 {
  margin: 0 0 9px;
  font-size: 20px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--color-ink);
}

.case-info .case-desc {
  margin: 0 0 12px;
  color: var(--color-text-2);
  font-size: 15px;
  line-height: 1.68;
}

.case-link-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  border-top: 1px solid var(--color-line);
  padding-top: 13px;
  margin-top: 4px;
}

.case-industry {
  font-size: 13px;
  color: var(--color-text-2);
}

.pagination-wrap {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 112px;
  padding-bottom: 8px;
  position: relative;
}

.pagination-wrap::before {
  content: "";
  position: absolute;
  right: 0;
  left: 0;
  top: 50%;
  height: 1px;
  background: var(--color-line);
}

.pg-item,
.pg-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 38px;
  border: 1px solid var(--color-line);
  background: var(--color-cream);
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 14px;
  color: var(--color-text);
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease), background 0.2s var(--ease);
}

.pg-item svg {
  width: 14px;
  height: 14px;
}

.pg-number.is-current,
.pg-number:hover {
  background: var(--color-tiger);
  border-color: var(--color-tiger);
  color: #fff;
  transform: translateY(-1px);
}

.pg-item:hover {
  border-color: var(--color-tiger);
  color: var(--color-tiger);
}

.pre-footer-cta {
  padding-block: 48px;
}

.pre-footer-cta .cta-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  background: var(--color-cream-light);
  border: 1px solid var(--color-line);
  border-left: 4px solid var(--color-tiger);
  border-radius: var(--radius);
  padding: clamp(24px, 4vw, 44px);
  box-shadow: var(--shadow-card);
}

.cta-panel h2 {
  margin: 0 0 8px;
  font-size: clamp(21px, 2.4vw, 30px);
  line-height: 1.3;
  color: var(--color-ink);
}

.cta-panel p {
  margin: 0;
  color: var(--color-text-2);
  font-size: 15px;
  max-width: 680px;
}

.site-footer {
  background: var(--color-ink);
  color: var(--color-on-dark);
  padding-top: clamp(52px, 8vw, 88px);
  border-top: 3px solid var(--color-tiger);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px 36px;
  padding-bottom: 32px;
}

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

.footer-brand .brand-name {
  color: var(--color-on-dark);
}

.footer-brand .brand-mark i {
  background: var(--color-on-dark);
}

.footer-brand .brand-mark i:last-child {
  background: var(--color-tiger);
}

.footer-brand-desc {
  max-width: 330px;
  margin: 0;
  color: rgba(246, 240, 230, 0.72);
  font-size: 14.5px;
  line-height: 1.75;
}

.footer-col h3 {
  margin: 0 0 18px;
  color: var(--color-on-dark);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

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

.footer-col li {
  font-size: 14.5px;
  color: rgba(246, 240, 230, 0.76);
}

.footer-col a {
  color: rgba(246, 240, 230, 0.8);
  transition: color 0.2s var(--ease), padding-left 0.25s var(--ease);
  padding: 2px 0;
}

.footer-col a:hover {
  color: var(--color-tiger);
  padding-left: 3px;
}

.footer-col p {
  margin: 0;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px 20px;
  border-top: 1px solid var(--color-line-dark);
  padding-block: 22px;
  font-size: 13.5px;
  color: rgba(246, 240, 230, 0.64);
}

.domain {
  opacity: 0.5;
}

@media (max-width: 1023px) {
  .header-main {
    gap: 18px;
  }

  .site-nav {
    margin-inline: 0;
  }

  .nav-list {
    gap: 22px;
  }

  .case-lead {
    gap: 30px;
    grid-template-columns: 1fr 320px;
  }

  .footer-grid {
    grid-template-columns: 1.3fr 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .site-header {
    background: rgba(250, 247, 242, 0.97);
  }

  .header-ribbon {
    display: none;
  }

  .header-main {
    height: 68px;
  }

  .site-nav,
  .header-actions .btn {
    display: none;
  }

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

  .header-actions {
    gap: 8px;
  }

  .case-lead {
    grid-template-columns: 1fr;
    padding-top: 16px;
    gap: 26px;
  }

  .filter-pills {
    justify-content: flex-start;
    max-width: none;
  }

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

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

  .case-grid {
    grid-template-columns: 1fr;
    gap: 38px;
  }

  .case-card:nth-child(even) {
    transform: none;
  }

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

  .pagination-wrap {
    justify-content: center;
    margin-top: 72px;
  }

  .pre-footer-cta {
    padding-block: 20px 40px;
  }

  .cta-panel {
    flex-direction: column;
    align-items: flex-start;
  }

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

  .footer-brand {
    grid-column: 1 / -1;
  }
}

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

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

  .header-main {
    gap: 10px;
  }

  .brand-name {
    font-size: 20px;
  }

  .breadcrumb {
    font-size: 13px;
  }

  .case-info h3 {
    font-size: 18.5px;
  }

  .date-note {
    font-size: 12.5px;
  }
}