/* roulang page: index */
:root {
            --coral: #E84D62;
            --coral-dark: #CC3F53;
            --coral-soft: #FFF0F2;
            --yellow: #F3C64E;
            --yellow-soft: #FFF8DF;
            --ink: #211F26;
            --ink-soft: #37333D;
            --muted: #746F7B;
            --line: #DEDCE2;
            --cool: #F7F8FA;
            --white: #FFFFFF;
            --success: #247A52;
            --danger: #B52F44;
            --radius: 8px;
            --button-radius: 6px;
            --shadow: 0 8px 24px rgba(33, 31, 38, .08);
            --shadow-strong: 0 18px 44px rgba(33, 31, 38, .14);
            --container: 1220px;
            --section-space: 92px;
            --transition: 200ms ease;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 92px;
        }

        body {
            margin: 0;
            padding: 0 0 86px;
            overflow-x: hidden;
            color: var(--ink);
            background: var(--white);
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
            font-size: 17px;
            line-height: 1.82;
            letter-spacing: 0;
            -webkit-font-smoothing: antialiased;
        }

        body.cta-dismissed {
            padding-bottom: 0;
        }

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

        a:hover {
            color: var(--coral-dark);
        }

        button, input, textarea, select {
            font: inherit;
            letter-spacing: 0;
        }

        button, a {
            -webkit-tap-highlight-color: transparent;
        }

        button {
            cursor: pointer;
        }

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

        h1, h2, h3, h4, p, ul, ol, blockquote {
            margin-top: 0;
        }

        h1, h2, h3, h4 {
            color: var(--ink);
            font-weight: 800;
            line-height: 1.22;
            letter-spacing: 0;
        }

        h1 {
            margin-bottom: 24px;
            font-size: 56px;
        }

        h2 {
            margin-bottom: 18px;
            font-size: 38px;
        }

        h3 {
            margin-bottom: 12px;
            font-size: 24px;
        }

        p {
            margin-bottom: 1em;
        }

        :focus-visible {
            outline: 3px solid rgba(243, 198, 78, .78);
            outline-offset: 3px;
        }

        .site-container {
            width: min(calc(100% - 56px), var(--container));
            margin-right: auto;
            margin-left: auto;
        }

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

        .section--cool {
            background: var(--cool);
        }

        .section--ink {
            color: var(--white);
            background: var(--ink);
        }

        .section--ink h2,
        .section--ink h3 {
            color: var(--white);
        }

        .section-heading {
            max-width: 760px;
            margin-bottom: 42px;
        }

        .section-heading p {
            margin-bottom: 0;
            color: var(--muted);
            font-size: 18px;
        }

        .section--ink .section-heading p {
            color: #C9C5CE;
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
            color: var(--coral-dark);
            font-size: 14px;
            font-weight: 800;
        }

        .eyebrow::before {
            width: 28px;
            height: 3px;
            content: "";
            background: var(--yellow);
        }

        .section--ink .eyebrow {
            color: var(--yellow);
        }

        .button {
            display: inline-flex;
            min-height: 48px;
            margin: 0;
            padding: 13px 22px;
            align-items: center;
            justify-content: center;
            gap: 10px;
            border: 1px solid transparent;
            border-radius: var(--button-radius);
            background: var(--coral);
            color: var(--white);
            font-weight: 800;
            line-height: 1.25;
            box-shadow: 0 8px 18px rgba(232, 77, 98, .2);
            transition: color var(--transition), background-color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
        }

        .button:hover,
        .button:focus {
            color: var(--white);
            background: var(--coral-dark);
            transform: translateY(-1px);
            box-shadow: 0 12px 22px rgba(204, 63, 83, .24);
        }

        .button:active {
            transform: translateY(0);
            box-shadow: 0 4px 10px rgba(204, 63, 83, .18);
        }

        .button.secondary {
            border-color: var(--ink);
            background: transparent;
            color: var(--ink);
            box-shadow: none;
        }

        .button.secondary:hover,
        .button.secondary:focus {
            border-color: var(--ink);
            background: var(--cool);
            color: var(--ink);
        }

        .button.light {
            border-color: rgba(255, 255, 255, .42);
            background: transparent;
            color: var(--white);
            box-shadow: none;
        }

        .button.light:hover,
        .button.light:focus {
            border-color: var(--white);
            background: var(--white);
            color: var(--ink);
        }

        .button[disabled],
        .button.is-disabled {
            cursor: not-allowed;
            opacity: .55;
            transform: none;
            box-shadow: none;
        }

        .text-link {
            display: inline-flex;
            min-height: 44px;
            align-items: center;
            gap: 8px;
            border-bottom: 1px solid currentColor;
            color: var(--ink);
            font-weight: 800;
        }

        .text-link:hover {
            gap: 12px;
            color: var(--coral-dark);
        }

        .tag {
            display: inline-flex;
            min-height: 28px;
            padding: 4px 9px;
            align-items: center;
            border: 1px solid var(--line);
            border-radius: 4px;
            background: var(--white);
            color: var(--muted);
            font-size: 13px;
            font-weight: 700;
            line-height: 1.2;
        }

        .site-header {
            position: sticky;
            z-index: 1000;
            top: 0;
            width: 100%;
            border-bottom: 1px solid rgba(222, 220, 226, .9);
            background: rgba(255, 255, 255, .97);
            box-shadow: 0 4px 16px rgba(33, 31, 38, .03);
        }

        .top-bar {
            max-width: var(--container);
            min-height: 80px;
            margin: 0 auto;
            padding: 0 28px;
            background: transparent;
        }

        .desktop-nav {
            display: grid;
            width: 100%;
            grid-template-columns: 1fr minmax(270px, 430px) 1fr;
            align-items: center;
            gap: 20px;
        }

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

        .nav-side--right {
            justify-content: flex-end;
        }

        .nav-link {
            position: relative;
            display: inline-flex;
            min-height: 46px;
            align-items: center;
            color: var(--ink);
            font-size: 15px;
            font-weight: 700;
            white-space: nowrap;
        }

        .nav-link::after {
            position: absolute;
            right: 0;
            bottom: 5px;
            left: 0;
            height: 3px;
            content: "";
            background: var(--coral);
            transform: scaleX(0);
            transform-origin: center;
            transition: transform var(--transition);
        }

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

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

        .brand {
            display: flex;
            min-width: 0;
            align-items: center;
            justify-content: center;
            gap: 12px;
            color: var(--ink);
            font-size: 20px;
            font-weight: 900;
            line-height: 1.3;
            text-align: center;
            overflow-wrap: anywhere;
        }

        .brand:hover {
            color: var(--coral-dark);
        }

        .brand-mark {
            display: inline-grid;
            width: 38px;
            height: 38px;
            flex: 0 0 38px;
            grid-template-columns: repeat(5, 3px);
            align-items: center;
            justify-content: center;
            gap: 3px;
            border: 2px solid var(--ink);
            border-radius: 50%;
            background: var(--yellow);
        }

        .brand-mark span {
            display: block;
            width: 3px;
            border-radius: 2px;
            background: var(--ink);
        }

        .brand-mark span:nth-child(1),
        .brand-mark span:nth-child(5) { height: 8px; }
        .brand-mark span:nth-child(2),
        .brand-mark span:nth-child(4) { height: 16px; }
        .brand-mark span:nth-child(3) { height: 23px; }

        .header-cta {
            min-height: 42px;
            padding: 9px 15px;
            font-size: 14px;
        }

        .mobile-bar,
        .mobile-menu {
            display: none;
        }

        .hero {
            position: relative;
            min-height: 650px;
            padding: 76px 0 84px;
            overflow: hidden;
            color: var(--white);
            background-color: var(--ink);
            background-image:
                linear-gradient(90deg, rgba(22, 20, 25, .9) 0%, rgba(22, 20, 25, .73) 44%, rgba(22, 20, 25, .26) 100%),
                url("https://images.unsplash.com/photo-1456324504439-367cee3b3c32?auto=format&fit=crop&w=2000&q=88");
            background-position: center;
            background-size: cover;
        }

        .hero::after {
            position: absolute;
            right: 0;
            bottom: 24px;
            left: 0;
            height: 42px;
            content: "";
            opacity: .72;
            background: repeating-linear-gradient(90deg, transparent 0 15px, rgba(255,255,255,.55) 15px 16px, transparent 16px 31px);
            mask-image: linear-gradient(to bottom, transparent, #000);
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            max-width: 830px;
        }

        .hero-badges {
            display: flex;
            margin-bottom: 24px;
            flex-wrap: wrap;
            gap: 10px;
        }

        .hero-badge {
            display: inline-flex;
            min-height: 34px;
            padding: 6px 11px;
            align-items: center;
            gap: 8px;
            border: 1px solid rgba(255,255,255,.46);
            border-radius: 5px;
            background: rgba(33,31,38,.74);
            color: var(--white);
            font-size: 14px;
            font-weight: 700;
        }

        .hero-badge i {
            color: var(--yellow);
        }

        .hero h1 {
            max-width: 820px;
            margin-bottom: 25px;
            color: var(--white);
            overflow-wrap: anywhere;
        }

        .hero-copy {
            max-width: 710px;
            margin-bottom: 30px;
            color: #F0EDF2;
            font-size: 19px;
            line-height: 1.85;
        }

        .hero-actions {
            display: flex;
            margin-bottom: 32px;
            flex-wrap: wrap;
            gap: 14px;
        }

        .hero .button.secondary {
            border-color: rgba(255,255,255,.7);
            background: rgba(33,31,38,.42);
            color: var(--white);
        }

        .hero .button.secondary:hover,
        .hero .button.secondary:focus {
            border-color: var(--white);
            background: var(--white);
            color: var(--ink);
        }

        .qualification {
            display: flex;
            max-width: 720px;
            padding-top: 22px;
            flex-wrap: wrap;
            gap: 14px 28px;
            border-top: 1px solid rgba(255,255,255,.28);
            color: #E3DFE5;
            font-size: 14px;
        }

        .qualification span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .qualification i {
            color: var(--yellow);
        }

        .chapter-band {
            position: relative;
            display: grid;
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
            grid-template-columns: repeat(3, 1fr);
            background: var(--white);
        }

        .chapter-band::before {
            position: absolute;
            top: -5px;
            right: 0;
            left: 0;
            height: 9px;
            content: "";
            background: repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 38px);
        }

        .chapter-item {
            position: relative;
            min-height: 245px;
            padding: 40px 34px 32px;
            border-right: 1px solid var(--line);
        }

        .chapter-item:last-child {
            border-right: 0;
        }

        .chapter-number {
            display: block;
            margin-bottom: 24px;
            color: var(--coral);
            font-size: 30px;
            font-weight: 900;
            line-height: 1;
        }

        .chapter-item:nth-child(2) .chapter-number {
            color: #9A7411;
        }

        .chapter-item p {
            margin-bottom: 0;
            color: var(--muted);
            font-size: 16px;
        }

        .scene-stage {
            display: grid;
            grid-template-columns: minmax(0, 7fr) minmax(310px, 5fr);
            gap: 50px;
            align-items: center;
        }

        .scene-visual {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius);
            box-shadow: var(--shadow-strong);
            aspect-ratio: 4 / 3;
        }

        .scene-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .scene-visual figcaption {
            position: absolute;
            right: 18px;
            bottom: 18px;
            left: 18px;
            padding: 12px 16px;
            border-left: 4px solid var(--yellow);
            background: rgba(33,31,38,.9);
            color: var(--white);
            font-size: 14px;
        }

        .scene-index {
            margin: 28px 0;
            border-top: 1px solid var(--line);
        }

        .scene-step {
            display: grid;
            padding: 19px 0;
            border-bottom: 1px solid var(--line);
            grid-template-columns: 44px 1fr;
            gap: 14px;
        }

        .scene-step strong {
            color: var(--coral);
            font-size: 14px;
        }

        .scene-step h3 {
            margin-bottom: 5px;
            font-size: 20px;
        }

        .scene-step p {
            margin: 0;
            color: var(--muted);
            font-size: 15px;
        }

        .vertical-stream {
            display: grid;
            grid-template-columns: 1.16fr .84fr .84fr;
            gap: 20px;
        }

        .portrait-card {
            position: relative;
            min-height: 440px;
            overflow: hidden;
            border: 1px solid var(--line);
            border-radius: var(--radius);
            background: var(--ink);
            box-shadow: var(--shadow);
            transition: transform var(--transition), box-shadow var(--transition);
        }

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

        .portrait-card img {
            width: 100%;
            height: 100%;
            min-height: 440px;
            object-fit: cover;
            opacity: .8;
            transition: transform 400ms ease, opacity var(--transition);
        }

        .portrait-card:hover img {
            transform: scale(1.025);
            opacity: .72;
        }

        .portrait-card::after {
            position: absolute;
            inset: 0;
            content: "";
            background: linear-gradient(to top, rgba(20,18,23,.96) 0%, rgba(20,18,23,.12) 68%);
        }

        .portrait-content {
            position: absolute;
            z-index: 2;
            right: 24px;
            bottom: 24px;
            left: 24px;
            color: var(--white);
        }

        .portrait-content h3 {
            color: var(--white);
        }

        .portrait-content p {
            margin-bottom: 18px;
            color: #E6E2E8;
            font-size: 15px;
        }

        .portrait-content .text-link {
            color: var(--yellow);
        }

        .topic-split {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            border: 1px solid var(--line);
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--white);
            box-shadow: var(--shadow);
        }

        .topic-panel {
            padding: 42px;
        }

        .topic-panel + .topic-panel {
            border-left: 1px solid var(--line);
            background: var(--yellow-soft);
        }

        .topic-panel p {
            color: var(--muted);
        }

        .topic-list {
            margin: 26px 0 28px;
            list-style: none;
        }

        .topic-list li {
            display: flex;
            padding: 14px 0;
            align-items: flex-start;
            gap: 12px;
            border-bottom: 1px solid rgba(222,220,226,.8);
            color: var(--ink);
            font-weight: 700;
        }

        .topic-list i {
            margin-top: 5px;
            color: var(--coral);
        }

        .invite-layout {
            display: grid;
            grid-template-columns: minmax(0, 7fr) minmax(280px, 5fr);
            gap: 48px;
            align-items: start;
        }

        .invite-copy > p {
            color: #D6D1D9;
        }

        .reward-row {
            display: grid;
            margin: 30px 0;
            grid-template-columns: repeat(3, 1fr);
            border: 1px solid #4B4651;
        }

        .reward {
            padding: 22px;
            border-right: 1px solid #4B4651;
        }

        .reward:last-child {
            border-right: 0;
        }

        .reward strong,
        .reward span {
            display: block;
        }

        .reward strong {
            margin-bottom: 8px;
            color: var(--yellow);
            font-size: 22px;
        }

        .reward span {
            color: #C9C5CE;
            font-size: 14px;
        }

        .progress-label {
            display: flex;
            margin-bottom: 9px;
            justify-content: space-between;
            color: #E9E5EB;
            font-size: 14px;
        }

        .progress {
            height: 12px;
            margin-bottom: 25px;
            border-radius: 0;
            background: #45404A;
        }

        .progress-meter {
            background: var(--coral);
        }

        .progress-meter::after {
            position: absolute;
            top: -4px;
            right: -5px;
            width: 20px;
            height: 20px;
            content: "";
            border: 4px solid var(--ink);
            border-radius: 50%;
            background: var(--yellow);
        }

        .share-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .rank-panel {
            border: 1px solid #4B4651;
            border-radius: var(--radius);
            background: #2B2830;
        }

        .rank-title {
            display: flex;
            padding: 20px 22px;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px solid #4B4651;
        }

        .rank-title h3 {
            margin: 0;
            font-size: 21px;
        }

        .rank-title span {
            color: var(--yellow);
            font-size: 13px;
        }

        .rank-list {
            margin: 0;
            list-style: none;
        }

        .rank-list li {
            display: grid;
            padding: 16px 22px;
            align-items: center;
            border-bottom: 1px solid #403B45;
            grid-template-columns: 34px 1fr auto;
            gap: 12px;
        }

        .rank-list li:last-child {
            border-bottom: 0;
        }

        .rank-number {
            color: var(--yellow);
            font-weight: 900;
        }

        .rank-name {
            color: #F2EFF4;
            font-weight: 700;
        }

        .rank-count {
            color: #BDB8C1;
            font-size: 13px;
        }

        .evidence-layout {
            display: grid;
            grid-template-columns: minmax(0, 7fr) minmax(280px, 5fr);
            gap: 42px;
        }

        .main-quote {
            position: relative;
            margin: 0;
            padding: 42px 42px 38px 70px;
            border-left: 5px solid var(--coral);
            background: var(--white);
            box-shadow: var(--shadow);
        }

        .main-quote::before {
            position: absolute;
            top: 22px;
            left: 24px;
            content: "“";
            color: var(--yellow);
            font-family: Georgia, serif;
            font-size: 64px;
            font-weight: 900;
            line-height: 1;
        }

        .main-quote p {
            color: var(--ink);
            font-size: 22px;
            font-weight: 700;
            line-height: 1.75;
        }

        .main-quote cite {
            color: var(--muted);
            font-size: 14px;
            font-style: normal;
        }

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

        .evidence-item {
            padding: 18px 0;
            border-bottom: 1px solid var(--line);
        }

        .evidence-item span {
            display: block;
            margin-bottom: 5px;
            color: var(--coral-dark);
            font-size: 13px;
            font-weight: 800;
        }

        .evidence-item p {
            margin: 0;
            color: var(--ink);
            font-size: 15px;
        }

        .news-layout {
            display: grid;
            grid-template-columns: minmax(0, 8fr) minmax(280px, 4fr);
            gap: 44px;
        }

        .news-list {
            margin: 0;
            border-top: 2px solid var(--ink);
            list-style: none;
        }

        .news-list li {
            border-bottom: 1px solid var(--line);
        }

        .news-link {
            display: grid;
            min-height: 94px;
            padding: 17px 4px;
            align-items: center;
            grid-template-columns: 92px 1fr 36px;
            gap: 20px;
        }

        .news-link:hover {
            padding-right: 0;
            padding-left: 10px;
            background: var(--coral-soft);
            color: var(--ink);
        }

        .news-date {
            color: var(--muted);
            font-size: 13px;
        }

        .news-link strong {
            display: block;
            margin-bottom: 4px;
            font-size: 18px;
        }

        .news-link small {
            color: var(--muted);
            font-size: 14px;
        }

        .news-link i {
            color: var(--coral);
            font-size: 24px;
        }

        .recommend-panel {
            padding: 28px;
            border-top: 5px solid var(--yellow);
            background: var(--ink);
            color: var(--white);
        }

        .recommend-panel h3 {
            color: var(--white);
        }

        .recommend-panel p {
            color: #CFCAD2;
            font-size: 15px;
        }

        .recommend-index {
            margin: 25px 0;
            list-style: none;
            counter-reset: rec;
        }

        .recommend-index li {
            display: grid;
            padding: 13px 0;
            border-bottom: 1px solid #49444E;
            grid-template-columns: 34px 1fr;
            gap: 8px;
            counter-increment: rec;
        }

        .recommend-index li::before {
            content: counter(rec, decimal-leading-zero);
            color: var(--yellow);
            font-size: 13px;
            font-weight: 900;
        }

        .recommend-index a {
            text-decoration: underline;
            text-decoration-color: transparent;
            text-underline-offset: 4px;
        }

        .recommend-index a:hover {
            color: var(--yellow);
            text-decoration-color: var(--yellow);
        }

        .faq-wrap {
            display: grid;
            grid-template-columns: minmax(230px, 4fr) minmax(0, 8fr);
            gap: 56px;
            align-items: start;
        }

        .faq-intro {
            position: sticky;
            top: 112px;
        }

        .accordion {
            margin: 0;
            background: transparent;
        }

        .accordion-item {
            margin-bottom: 12px;
            border: 1px solid var(--line);
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--white);
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .accordion-item.is-active {
            border-left: 5px solid var(--coral);
            box-shadow: var(--shadow);
        }

        .accordion-title {
            min-height: 66px;
            padding: 20px 58px 20px 22px;
            border: 0;
            color: var(--ink);
            font-size: 18px;
            font-weight: 800;
            line-height: 1.5;
        }

        .accordion-title:hover,
        .accordion-title:focus {
            background: var(--coral-soft);
            color: var(--ink);
        }

        .accordion-title::before {
            top: 50%;
            right: 22px;
            margin-top: -13px;
            color: var(--coral);
            content: "+";
            font-size: 26px;
            font-weight: 400;
            transition: transform var(--transition);
        }

        .is-active > .accordion-title::before {
            content: "+";
            transform: rotate(45deg);
        }

        .accordion-item.is-active .accordion-title::after {
            display: inline-block;
            width: 8px;
            height: 8px;
            margin-left: 10px;
            border-radius: 50%;
            background: var(--yellow);
            content: "";
        }

        .accordion-content {
            padding: 0 22px 22px;
            border: 0;
            color: var(--muted);
            background: var(--white);
            font-size: 16px;
        }

        .accordion-content p {
            margin: 0;
        }

        .entry-strip {
            position: relative;
            overflow: hidden;
            background: var(--coral);
            color: var(--white);
        }

        .entry-strip::before {
            position: absolute;
            inset: 0;
            content: "";
            opacity: .22;
            background: repeating-linear-gradient(90deg, transparent 0 30px, rgba(255,255,255,.75) 30px 31px);
        }

        .entry-inner {
            position: relative;
            display: grid;
            padding: 60px 0;
            grid-template-columns: minmax(0, 8fr) minmax(250px, 4fr);
            gap: 40px;
            align-items: center;
        }

        .entry-inner h2 {
            color: var(--white);
        }

        .entry-inner p {
            max-width: 710px;
            margin: 0;
            color: #FFF3F5;
        }

        .entry-actions {
            display: flex;
            justify-content: flex-end;
        }

        .entry-actions .button {
            background: var(--ink);
            box-shadow: 0 10px 22px rgba(33,31,38,.22);
        }

        .entry-actions .button:hover {
            background: var(--white);
            color: var(--ink);
        }

        .site-footer {
            padding: 66px 0 30px;
            background: var(--ink);
            color: #C8C3CB;
        }

        .footer-grid {
            display: grid;
            margin-bottom: 44px;
            grid-template-columns: minmax(300px, 2fr) 1fr 1fr;
            gap: 60px;
        }

        .footer-brand {
            display: inline-flex;
            max-width: 520px;
            margin-bottom: 16px;
            align-items: center;
            gap: 12px;
            color: var(--white);
            font-size: 21px;
            font-weight: 900;
            overflow-wrap: anywhere;
        }

        .footer-brand:hover {
            color: var(--yellow);
        }

        .footer-brand .brand-mark {
            border-color: var(--white);
        }

        .footer-brand .brand-mark span {
            background: var(--ink);
        }

        .footer-copy {
            max-width: 520px;
            margin: 0;
            color: #AAA5AE;
            font-size: 14px;
        }

        .footer-col h3 {
            margin-bottom: 16px;
            color: var(--white);
            font-size: 16px;
        }

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

        .footer-links li {
            margin-bottom: 8px;
        }

        .footer-links a {
            display: inline-flex;
            min-height: 38px;
            align-items: center;
            color: #C8C3CB;
            font-size: 14px;
        }

        .footer-links a:hover {
            color: var(--yellow);
            text-decoration: underline;
            text-underline-offset: 4px;
        }

        .footer-bottom {
            display: flex;
            padding-top: 25px;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            border-top: 1px solid #46414A;
            color: #918C96;
            font-size: 13px;
        }

        .fixed-cta {
            position: fixed;
            z-index: 1200;
            right: 0;
            bottom: 0;
            left: 0;
            padding: 12px max(24px, env(safe-area-inset-right)) calc(12px + env(safe-area-inset-bottom)) max(24px, env(safe-area-inset-left));
            border-top: 1px solid #45404A;
            background: rgba(33,31,38,.98);
            color: var(--white);
            box-shadow: 0 -8px 26px rgba(33,31,38,.16);
        }

        .fixed-cta[hidden] {
            display: none;
        }

        .fixed-cta-inner {
            display: grid;
            max-width: var(--container);
            margin: 0 auto;
            grid-template-columns: 1fr auto 46px;
            gap: 18px;
            align-items: center;
        }

        .fixed-cta-copy strong {
            display: block;
            margin-bottom: 2px;
            font-size: 16px;
        }

        .fixed-cta-copy span {
            color: #BDB8C1;
            font-size: 13px;
        }

        .fixed-cta .button {
            min-height: 44px;
            padding: 10px 18px;
        }

        .icon-button {
            display: inline-flex;
            width: 44px;
            height: 44px;
            padding: 0;
            align-items: center;
            justify-content: center;
            border: 1px solid #5A5560;
            border-radius: var(--button-radius);
            background: transparent;
            color: var(--white);
            font-size: 22px;
            transition: background var(--transition), border-color var(--transition), color var(--transition);
        }

        .icon-button:hover,
        .icon-button:focus {
            border-color: var(--yellow);
            background: #37333D;
            color: var(--yellow);
        }

        @media screen and (max-width: 1100px) {
            :root {
                --section-space: 76px;
            }

            .desktop-nav {
                grid-template-columns: 1fr minmax(240px, 360px) 1fr;
                gap: 14px;
            }

            .nav-side {
                gap: 18px;
            }

            .brand {
                font-size: 17px;
            }

            .header-cta {
                display: none;
            }

            .portrait-card,
            .portrait-card img {
                min-height: 400px;
            }
        }

        @media screen and (max-width: 900px) {
            h1 {
                font-size: 46px;
            }

            h2 {
                font-size: 34px;
            }

            .top-bar {
                min-height: 72px;
                padding: 0 22px;
            }

            .desktop-nav {
                display: none;
            }

            .mobile-bar {
                position: relative;
                display: grid;
                width: 100%;
                grid-template-columns: 48px 1fr 48px;
                align-items: center;
            }

            .mobile-bar .brand {
                grid-column: 2;
                font-size: 16px;
            }

            .mobile-toggle {
                display: inline-flex;
                width: 44px;
                height: 44px;
                padding: 0;
                align-items: center;
                justify-content: center;
                border: 1px solid var(--line);
                border-radius: var(--button-radius);
                background: var(--white);
                color: var(--ink);
                font-size: 24px;
            }

            .mobile-toggle:hover,
            .mobile-toggle:focus {
                border-color: var(--coral);
                color: var(--coral-dark);
            }

            .mobile-menu {
                padding: 0 22px 20px;
                border-top: 1px solid var(--line);
                background: var(--white);
            }

            .mobile-menu.is-open {
                display: block;
            }

            .mobile-menu a {
                display: flex;
                min-height: 50px;
                padding: 10px 4px;
                align-items: center;
                justify-content: space-between;
                border-bottom: 1px solid var(--line);
                color: var(--ink);
                font-weight: 700;
            }

            .mobile-menu a.active {
                color: var(--coral-dark);
            }

            .scene-stage,
            .invite-layout,
            .evidence-layout,
            .news-layout,
            .faq-wrap {
                grid-template-columns: 1fr;
            }

            .vertical-stream {
                grid-template-columns: 1.1fr .9fr;
            }

            .portrait-card:last-child {
                grid-column: 1 / -1;
                min-height: 330px;
            }

            .portrait-card:last-child img {
                min-height: 330px;
            }

            .faq-intro {
                position: static;
            }

            .footer-grid {
                grid-template-columns: 1.6fr 1fr 1fr;
                gap: 34px;
            }
        }

        @media screen and (max-width: 640px) {
            :root {
                --section-space: 62px;
            }

            body {
                padding-bottom: 104px;
                font-size: 16px;
            }

            .site-container {
                width: calc(100% - 32px);
            }

            h1 {
                font-size: 37px;
                line-height: 1.24;
            }

            h2 {
                font-size: 30px;
            }

            h3 {
                font-size: 21px;
            }

            .section-heading {
                margin-bottom: 30px;
            }

            .section-heading p {
                font-size: 16px;
            }

            .top-bar {
                min-height: 68px;
                padding: 0 16px;
            }

            .mobile-bar .brand {
                gap: 7px;
                font-size: 13px;
                line-height: 1.25;
            }

            .mobile-bar .brand-mark {
                width: 32px;
                height: 32px;
                flex-basis: 32px;
            }

            .mobile-menu {
                padding-right: 16px;
                padding-left: 16px;
            }

            .hero {
                min-height: 590px;
                padding: 58px 0 68px;
                background-position: 62% center;
            }

            .hero::before {
                position: absolute;
                inset: 0;
                content: "";
                background: rgba(20,18,23,.18);
            }

            .hero-copy {
                font-size: 17px;
            }

            .hero-actions {
                display: grid;
                grid-template-columns: 1fr;
            }

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

            .qualification {
                display: grid;
                gap: 10px;
            }

            .chapter-band {
                grid-template-columns: 1fr;
                border-left: 1px solid var(--line);
            }

            .chapter-band::before {
                top: 0;
                right: auto;
                bottom: 0;
                left: -5px;
                width: 9px;
                height: auto;
                background: repeating-linear-gradient(180deg, var(--line) 0 1px, transparent 1px 28px);
            }

            .chapter-item {
                min-height: 0;
                padding: 30px 24px;
                border-right: 0;
                border-bottom: 1px solid var(--line);
            }

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

            .chapter-number {
                margin-bottom: 14px;
            }

            .scene-stage {
                gap: 30px;
            }

            .scene-visual {
                aspect-ratio: 4 / 3;
            }

            .scene-visual figcaption {
                right: 10px;
                bottom: 10px;
                left: 10px;
            }

            .vertical-stream {
                display: flex;
                margin-right: -16px;
                padding-right: 16px;
                overflow-x: auto;
                scroll-snap-type: x mandatory;
            }

            .portrait-card,
            .portrait-card:last-child {
                min-width: 82vw;
                min-height: 430px;
                grid-column: auto;
                scroll-snap-align: start;
            }

            .portrait-card img,
            .portrait-card:last-child img {
                min-height: 430px;
            }

            .topic-split {
                grid-template-columns: 1fr;
            }

            .topic-panel {
                padding: 30px 24px;
            }

            .topic-panel + .topic-panel {
                border-top: 1px solid var(--line);
                border-left: 0;
            }

            .reward-row {
                grid-template-columns: 1fr;
            }

            .reward {
                border-right: 0;
                border-bottom: 1px solid #4B4651;
            }

            .reward:last-child {
                border-bottom: 0;
            }

            .main-quote {
                padding: 62px 24px 28px;
            }

            .main-quote::before {
                top: 18px;
                left: 22px;
            }

            .main-quote p {
                font-size: 19px;
            }

            .news-link {
                min-height: 110px;
                grid-template-columns: 1fr 32px;
                gap: 8px;
            }

            .news-date {
                grid-column: 1 / -1;
            }

            .news-link i {
                grid-column: 2;
                grid-row: 2;
            }

            .accordion-title {
                padding-right: 52px;
                font-size: 16px;
            }

            .entry-inner {
                padding: 48px 0;
                grid-template-columns: 1fr;
            }

            .entry-actions {
                justify-content: flex-start;
            }

            .entry-actions .button {
                width: 100%;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px 24px;
            }

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

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

            .fixed-cta {
                padding: 9px 10px calc(9px + env(safe-area-inset-bottom));
            }

            .fixed-cta-inner {
                grid-template-columns: 1fr 44px;
                gap: 8px;
            }

            .fixed-cta-copy {
                display: none;
            }

            .fixed-cta .button {
                width: 100%;
            }
        }

        @media screen and (max-width: 390px) {
            h1 {
                font-size: 34px;
            }

            .mobile-bar .brand-mark {
                display: none;
            }

            .mobile-bar .brand {
                font-size: 12px;
                overflow-wrap: anywhere;
            }

            .hero-badges {
                gap: 7px;
            }

            .hero-badge {
                font-size: 12px;
            }

            .share-actions {
                display: grid;
                grid-template-columns: 1fr;
            }

            .share-actions .button {
                width: 100%;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            html {
                scroll-behavior: auto;
            }

            *, *::before, *::after {
                scroll-behavior: auto !important;
                transition-duration: .01ms !important;
                animation-duration: .01ms !important;
                animation-iteration-count: 1 !important;
            }
        }

/* roulang page: category1 */
:root {
      --coral: #E84D62;
      --coral-dark: #CC3F53;
      --coral-soft: #FFF0F2;
      --yellow: #F3C64E;
      --yellow-soft: #FFF8DF;
      --ink: #211F26;
      --ink-soft: #37333D;
      --muted: #746F7B;
      --line: #DEDCE2;
      --cool: #F7F8FA;
      --white: #FFFFFF;
      --success: #247A52;
      --danger: #B52F44;
      --radius: 8px;
      --button-radius: 6px;
      --shadow: 0 8px 24px rgba(33, 31, 38, .08);
      --shadow-strong: 0 18px 44px rgba(33, 31, 38, .14);
      --container: 1220px;
      --section-space: 76px;
      --transition: 200ms ease;
    }

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

    html {
      scroll-behavior: smooth;
      scroll-padding-top: 98px;
    }

    body {
      margin: 0;
      padding: 0;
      overflow-x: hidden;
      color: var(--ink);
      background: var(--white);
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
      font-size: 17px;
      line-height: 1.82;
      letter-spacing: 0;
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }

    body.menu-open {
      overflow: hidden;
    }

    h1,
    h2,
    h3,
    h4,
    p,
    ul,
    ol,
    blockquote,
    figure {
      margin-top: 0;
    }

    h1,
    h2,
    h3,
    h4 {
      color: var(--ink);
      font-weight: 900;
      line-height: 1.22;
      letter-spacing: 0;
    }

    h1 {
      max-width: 920px;
      margin-bottom: 24px;
      font-size: 52px;
      overflow-wrap: anywhere;
    }

    h2 {
      margin-bottom: 18px;
      font-size: 38px;
    }

    h3 {
      margin-bottom: 12px;
      font-size: 23px;
    }

    p {
      margin-bottom: 1em;
    }

    ul,
    ol {
      margin-bottom: 0;
    }

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

    a:hover {
      color: var(--coral-dark);
    }

    button,
    input,
    textarea,
    select {
      font: inherit;
      letter-spacing: 0;
    }

    button,
    a {
      -webkit-tap-highlight-color: transparent;
    }

    button {
      cursor: pointer;
    }

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

    :focus-visible {
      outline: 3px solid rgba(243, 198, 78, .72);
      outline-offset: 3px;
    }

    ::selection {
      color: var(--ink);
      background: var(--yellow);
    }

    .site-container {
      width: min(calc(100% - 56px), var(--container));
      margin-right: auto;
      margin-left: auto;
    }

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

    .section--cool {
      background: var(--cool);
    }

    .section--ink {
      color: var(--white);
      background: var(--ink);
    }

    .section--ink h2,
    .section--ink h3 {
      color: var(--white);
    }

    .section-heading {
      max-width: 760px;
      margin-bottom: 42px;
    }

    .section-heading p {
      margin-bottom: 0;
      color: var(--muted);
      font-size: 18px;
    }

    .section--ink .section-heading p {
      color: #C9C5CE;
    }

    .eyebrow {
      display: inline-flex;
      margin-bottom: 14px;
      align-items: center;
      gap: 10px;
      color: var(--coral-dark);
      font-size: 14px;
      font-weight: 800;
    }

    .eyebrow::before {
      width: 28px;
      height: 3px;
      content: "";
      background: var(--yellow);
    }

    .section--ink .eyebrow {
      color: var(--yellow);
    }

    .button {
      display: inline-flex;
      min-height: 48px;
      margin: 0;
      padding: 13px 22px;
      align-items: center;
      justify-content: center;
      gap: 10px;
      border: 1px solid transparent;
      border-radius: var(--button-radius);
      background: var(--coral);
      color: var(--white);
      font-weight: 800;
      line-height: 1.25;
      box-shadow: 0 8px 18px rgba(232, 77, 98, .2);
      transition: color var(--transition), background-color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
    }

    .button:hover,
    .button:focus {
      color: var(--white);
      background: var(--coral-dark);
      transform: translateY(-1px);
      box-shadow: 0 12px 22px rgba(204, 63, 83, .24);
    }

    .button:active {
      transform: translateY(0);
      box-shadow: 0 4px 10px rgba(204, 63, 83, .18);
    }

    .button.secondary {
      border-color: var(--ink);
      background: transparent;
      color: var(--ink);
      box-shadow: none;
    }

    .button.secondary:hover,
    .button.secondary:focus {
      border-color: var(--ink);
      background: var(--cool);
      color: var(--ink);
    }

    .button.light {
      border-color: rgba(255, 255, 255, .42);
      background: transparent;
      color: var(--white);
      box-shadow: none;
    }

    .button.light:hover,
    .button.light:focus {
      border-color: var(--white);
      background: var(--white);
      color: var(--ink);
    }

    .button[disabled],
    .button.is-disabled {
      cursor: not-allowed;
      opacity: .55;
      transform: none;
      box-shadow: none;
    }

    .text-link {
      display: inline-flex;
      min-height: 44px;
      align-items: center;
      gap: 8px;
      border-bottom: 1px solid currentColor;
      color: var(--ink);
      font-weight: 800;
    }

    .text-link:hover {
      gap: 12px;
      color: var(--coral-dark);
    }

    .tag {
      display: inline-flex;
      min-height: 28px;
      padding: 4px 9px;
      align-items: center;
      border: 1px solid var(--line);
      border-radius: 4px;
      background: var(--white);
      color: var(--muted);
      font-size: 13px;
      font-weight: 700;
      line-height: 1.2;
    }

    .site-header {
      position: sticky;
      z-index: 1000;
      top: 0;
      width: 100%;
      border-bottom: 1px solid rgba(222, 220, 226, .9);
      background: rgba(255, 255, 255, .97);
      box-shadow: 0 4px 16px rgba(33, 31, 38, .03);
    }

    .top-bar {
      display: block;
      max-width: none;
      padding: 0;
      background: transparent;
    }

    .desktop-nav {
      display: grid;
      width: min(calc(100% - 56px), var(--container));
      min-height: 82px;
      margin: 0 auto;
      grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
      align-items: center;
      gap: 28px;
    }

    .nav-side {
      display: flex;
      align-items: center;
      gap: 28px;
    }

    .nav-side--right {
      justify-content: flex-end;
    }

    .nav-link {
      position: relative;
      display: inline-flex;
      min-height: 44px;
      align-items: center;
      color: var(--ink-soft);
      font-size: 15px;
      font-weight: 800;
      white-space: nowrap;
    }

    .nav-link::after {
      position: absolute;
      right: 50%;
      bottom: 3px;
      left: 50%;
      height: 3px;
      content: "";
      background: var(--coral);
      transition: right var(--transition), left var(--transition);
    }

    .nav-link:hover::after,
    .nav-link.active::after {
      right: 20%;
      left: 20%;
    }

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

    .brand,
    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 11px;
      color: var(--ink);
      font-weight: 900;
      line-height: 1.28;
      overflow-wrap: anywhere;
    }

    .brand {
      max-width: 340px;
      justify-self: center;
      font-size: 18px;
      text-align: center;
    }

    .brand:hover,
    .footer-brand:hover {
      color: var(--ink);
    }

    .brand-mark {
      display: inline-flex;
      width: 31px;
      min-width: 31px;
      height: 30px;
      align-items: center;
      justify-content: center;
      gap: 3px;
      border: 2px solid var(--ink);
      border-radius: 50%;
      background: var(--yellow);
    }

    .brand-mark span {
      display: block;
      width: 2px;
      border-radius: 2px;
      background: var(--ink);
    }

    .brand-mark span:nth-child(1),
    .brand-mark span:nth-child(5) {
      height: 7px;
    }

    .brand-mark span:nth-child(2),
    .brand-mark span:nth-child(4) {
      height: 13px;
    }

    .brand-mark span:nth-child(3) {
      height: 18px;
    }

    .header-cta {
      min-height: 44px;
      padding: 10px 15px;
      font-size: 14px;
      white-space: nowrap;
    }

    .mobile-bar,
    .mobile-menu {
      display: none;
    }

    .category-hero {
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid var(--line);
      background: var(--cool);
    }

    .category-hero::after {
      position: absolute;
      right: 0;
      bottom: 0;
      left: 0;
      height: 5px;
      content: "";
      background: repeating-linear-gradient(90deg, var(--coral) 0, var(--coral) 4px, transparent 4px, transparent 18px);
    }

    .hero-inner {
      padding-top: 62px;
      padding-bottom: 66px;
    }

    .breadcrumbs {
      display: flex;
      margin: 0 0 24px;
      padding: 0;
      align-items: center;
      flex-wrap: wrap;
      gap: 9px;
      list-style: none;
      color: var(--muted);
      font-size: 14px;
      font-weight: 700;
    }

    .breadcrumbs li:not(:last-child)::after {
      margin-left: 9px;
      content: "/";
      color: #AAA5AF;
    }

    .breadcrumbs a {
      border-bottom: 1px solid transparent;
    }

    .breadcrumbs a:hover {
      border-bottom-color: currentColor;
    }

    .hero-summary {
      max-width: 820px;
      margin-bottom: 30px;
      color: var(--ink-soft);
      font-size: 19px;
      line-height: 1.85;
    }

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

    .hero-ruler {
      display: grid;
      margin-top: 48px;
      padding-top: 16px;
      border-top: 1px solid var(--line);
      grid-template-columns: repeat(4, 1fr);
    }

    .hero-ruler span {
      position: relative;
      color: var(--muted);
      font-size: 13px;
      font-weight: 800;
    }

    .hero-ruler span::before {
      position: absolute;
      top: -22px;
      left: 0;
      width: 1px;
      height: 12px;
      content: "";
      background: var(--ink);
    }

    .hero-ruler span:last-child {
      text-align: right;
    }

    .hero-ruler span:last-child::before {
      right: 0;
      left: auto;
    }

    .content-layout {
      display: grid;
      grid-template-columns: 260px minmax(0, 1fr);
      align-items: start;
      gap: 58px;
    }

    .category-index {
      position: sticky;
      top: 112px;
      padding: 24px 0;
      border-top: 4px solid var(--yellow);
      border-bottom: 1px solid var(--line);
    }

    .index-label {
      margin-bottom: 18px;
      color: var(--muted);
      font-size: 13px;
      font-weight: 800;
    }

    .category-index ul {
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .category-index li + li {
      border-top: 1px solid var(--line);
    }

    .category-index a {
      display: flex;
      min-height: 52px;
      padding: 11px 4px;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      color: var(--ink-soft);
      font-size: 15px;
      font-weight: 800;
    }

    .category-index a:hover,
    .category-index a.is-current {
      color: var(--coral-dark);
    }

    .category-index .index-number {
      color: var(--muted);
      font-size: 12px;
    }

    .content-intro {
      max-width: 820px;
      margin-bottom: 36px;
    }

    .content-intro p {
      color: var(--muted);
      font-size: 18px;
    }

    .selection-list {
      border-top: 1px solid var(--ink);
    }

    .selection-item {
      display: grid;
      min-height: 190px;
      padding: 28px 4px;
      border-bottom: 1px solid var(--line);
      grid-template-columns: 76px minmax(0, 1fr) 50px;
      align-items: start;
      gap: 20px;
      transition: background-color var(--transition), padding var(--transition);
    }

    .selection-item:hover {
      padding-right: 14px;
      padding-left: 14px;
      background: var(--cool);
    }

    .item-number {
      color: var(--coral);
      font-size: 22px;
      font-weight: 900;
      line-height: 1;
    }

    .item-number::after {
      display: block;
      width: 36px;
      height: 2px;
      margin-top: 14px;
      content: "";
      background: var(--yellow);
    }

    .item-body h3 {
      margin-bottom: 10px;
      font-size: 26px;
    }

    .item-body p {
      max-width: 720px;
      margin-bottom: 16px;
      color: var(--muted);
    }

    .item-meta {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
    }

    .item-time {
      margin-left: 4px;
      color: var(--muted);
      font-size: 13px;
      font-weight: 700;
    }

    .item-action {
      display: inline-flex;
      width: 46px;
      height: 46px;
      align-items: center;
      justify-content: center;
      border: 1px solid var(--line);
      border-radius: 50%;
      background: var(--white);
      color: var(--ink);
      font-size: 21px;
    }

    .selection-item:hover .item-action,
    .item-action:hover,
    .item-action:focus {
      border-color: var(--coral);
      background: var(--coral);
      color: var(--white);
      transform: translateX(3px);
    }

    .selection-item:target {
      margin-right: -14px;
      margin-left: -14px;
      padding-right: 18px;
      padding-left: 18px;
      border-left: 4px solid var(--coral);
      background: var(--coral-soft);
    }

    .advantage-strip {
      display: grid;
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--white);
      box-shadow: var(--shadow);
      grid-template-columns: repeat(3, 1fr);
    }

    .advantage {
      position: relative;
      min-height: 220px;
      padding: 30px;
    }

    .advantage + .advantage {
      border-left: 1px solid var(--line);
    }

    .advantage-number {
      display: block;
      margin-bottom: 30px;
      color: var(--coral);
      font-size: 15px;
      font-weight: 900;
    }

    .advantage-number::after {
      display: inline-block;
      width: calc(100% - 42px);
      height: 1px;
      margin-left: 10px;
      vertical-align: middle;
      content: "";
      background: repeating-linear-gradient(90deg, var(--line) 0, var(--line) 6px, transparent 6px, transparent 12px);
    }

    .advantage h3 {
      font-size: 22px;
    }

    .advantage p {
      margin-bottom: 0;
      color: var(--muted);
      font-size: 15px;
    }

    .scene-grid {
      display: grid;
      grid-template-columns: minmax(0, 7fr) minmax(300px, 5fr);
      align-items: stretch;
      gap: 42px;
    }

    .scene-media {
      position: relative;
      min-height: 520px;
      overflow: hidden;
      border-radius: var(--radius);
      background: var(--ink);
      box-shadow: var(--shadow);
    }

    .scene-media img {
      width: 100%;
      height: 100%;
      min-height: 520px;
      object-fit: cover;
    }

    .scene-caption {
      position: absolute;
      right: 0;
      bottom: 0;
      left: 0;
      padding: 26px;
      color: var(--white);
      background: rgba(33, 31, 38, .88);
    }

    .scene-caption strong {
      display: block;
      margin-bottom: 4px;
      font-size: 20px;
    }

    .scene-caption span {
      color: #D8D5DC;
      font-size: 14px;
    }

    .scene-content {
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .scene-content > p {
      color: var(--muted);
      font-size: 18px;
    }

    .step-list {
      margin: 24px 0 30px;
      padding: 0;
      list-style: none;
      counter-reset: scene-step;
    }

    .step-list li {
      position: relative;
      min-height: 72px;
      padding: 0 0 24px 58px;
      counter-increment: scene-step;
    }

    .step-list li:not(:last-child)::after {
      position: absolute;
      top: 40px;
      bottom: 4px;
      left: 19px;
      width: 1px;
      content: "";
      background: var(--line);
    }

    .step-list li::before {
      position: absolute;
      top: 0;
      left: 0;
      display: flex;
      width: 40px;
      height: 40px;
      content: counter(scene-step, decimal-leading-zero);
      align-items: center;
      justify-content: center;
      border: 1px solid var(--ink);
      border-radius: 50%;
      background: var(--yellow);
      color: var(--ink);
      font-size: 12px;
      font-weight: 900;
    }

    .step-list strong {
      display: block;
      margin-bottom: 3px;
      font-size: 17px;
    }

    .step-list span {
      color: var(--muted);
      font-size: 14px;
    }

    .proof-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.35fr) minmax(300px, .65fr);
      gap: 54px;
    }

    .main-quote {
      position: relative;
      margin: 0;
      padding: 44px 0 34px;
      border-top: 1px solid rgba(255, 255, 255, .28);
      border-bottom: 1px solid rgba(255, 255, 255, .28);
    }

    .quote-mark {
      display: block;
      margin-bottom: 12px;
      color: var(--yellow);
      font-size: 54px;
      font-weight: 900;
      line-height: .7;
    }

    .main-quote p {
      margin-bottom: 20px;
      color: var(--white);
      font-size: 27px;
      font-weight: 800;
      line-height: 1.6;
    }

    .main-quote cite {
      color: #C9C5CE;
      font-size: 14px;
      font-style: normal;
    }

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

    .proof-notes li {
      padding: 20px 0;
      border-top: 1px solid rgba(255, 255, 255, .2);
    }

    .proof-notes li:last-child {
      border-bottom: 1px solid rgba(255, 255, 255, .2);
    }

    .proof-notes strong {
      display: block;
      margin-bottom: 6px;
      color: var(--yellow);
      font-size: 14px;
    }

    .proof-notes span {
      color: #D5D1D9;
      font-size: 15px;
    }

    .faq-layout {
      display: grid;
      grid-template-columns: minmax(250px, .72fr) minmax(0, 1.28fr);
      align-items: start;
      gap: 64px;
    }

    .faq-intro {
      position: sticky;
      top: 112px;
    }

    .faq-intro p {
      color: var(--muted);
    }

    .accordion {
      margin: 0;
      border: 0;
      background: transparent;
    }

    .accordion-item {
      border-top: 1px solid var(--line);
      background: transparent;
    }

    .accordion-item:last-child {
      border-bottom: 1px solid var(--line);
    }

    .accordion-title {
      position: relative;
      min-height: 72px;
      padding: 21px 58px 21px 18px;
      border: 0;
      background: transparent;
      color: var(--ink);
      font-size: 17px;
      font-weight: 900;
      line-height: 1.6;
    }

    .accordion-title:hover,
    .accordion-title:focus {
      background: var(--cool);
      color: var(--coral-dark);
    }

    .accordion-title::before {
      top: 50%;
      right: 20px;
      width: 28px;
      height: 28px;
      margin-top: -14px;
      content: "+";
      color: var(--coral);
      font-size: 25px;
      font-weight: 500;
      line-height: 26px;
      text-align: center;
      transition: transform var(--transition);
    }

    .is-active > .accordion-title {
      border-left: 4px solid var(--coral);
      background: var(--coral-soft);
    }

    .is-active > .accordion-title::before {
      content: "+";
      transform: rotate(45deg);
    }

    .accordion-content {
      padding: 2px 28px 26px 22px;
      border: 0;
      border-left: 4px solid var(--coral);
      background: var(--coral-soft);
      color: var(--ink-soft);
    }

    .accordion-content p {
      margin-bottom: 0;
    }

    .related-band {
      padding: 38px 0;
      border-top: 1px solid var(--line);
      background: var(--yellow-soft);
    }

    .related-inner {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      align-items: center;
      gap: 32px;
    }

    .related-copy {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .related-index {
      display: inline-flex;
      width: 54px;
      height: 54px;
      min-width: 54px;
      align-items: center;
      justify-content: center;
      border: 1px solid var(--ink);
      border-radius: 50%;
      background: var(--white);
      color: var(--coral);
      font-size: 14px;
      font-weight: 900;
    }

    .related-copy h2 {
      margin-bottom: 4px;
      font-size: 26px;
    }

    .related-copy p {
      margin-bottom: 0;
      color: var(--muted);
      font-size: 15px;
    }

    .cta-section {
      overflow: hidden;
      background: var(--coral);
      color: var(--white);
    }

    .cta-section::before {
      position: absolute;
      top: 24px;
      right: 0;
      left: 0;
      height: 46px;
      content: "";
      opacity: .3;
      background: repeating-linear-gradient(90deg, transparent 0, transparent 14px, rgba(255,255,255,.8) 14px, rgba(255,255,255,.8) 16px, transparent 16px, transparent 31px);
      clip-path: polygon(0 48%, 3% 48%, 4% 12%, 5% 86%, 6% 48%, 17% 48%, 18% 22%, 19% 72%, 20% 48%, 35% 48%, 36% 0, 37% 100%, 38% 48%, 59% 48%, 60% 20%, 61% 76%, 62% 48%, 78% 48%, 79% 8%, 80% 91%, 81% 48%, 100% 48%, 100% 52%, 81% 52%, 80% 95%, 79% 13%, 78% 52%, 62% 52%, 61% 81%, 60% 25%, 59% 52%, 38% 52%, 37% 100%, 36% 0, 35% 52%, 20% 52%, 19% 77%, 18% 27%, 17% 52%, 6% 52%, 5% 91%, 4% 17%, 3% 52%, 0 52%);
    }

    .cta-inner {
      position: relative;
      display: grid;
      padding-top: 28px;
      grid-template-columns: minmax(0, 1fr) auto;
      align-items: center;
      gap: 44px;
    }

    .cta-inner h2 {
      max-width: 740px;
      margin-bottom: 10px;
      color: var(--white);
      font-size: 38px;
    }

    .cta-inner p {
      max-width: 720px;
      margin-bottom: 0;
      color: #FFF1F3;
    }

    .cta-actions {
      display: flex;
      gap: 12px;
    }

    .cta-section .button {
      border-color: var(--white);
      background: var(--white);
      color: var(--ink);
      box-shadow: none;
    }

    .cta-section .button:hover,
    .cta-section .button:focus {
      border-color: var(--yellow);
      background: var(--yellow);
      color: var(--ink);
    }

    .site-footer {
      padding: 64px 0 26px;
      color: #D8D5DC;
      background: var(--ink);
    }

    .footer-grid {
      display: grid;
      padding-bottom: 44px;
      grid-template-columns: minmax(0, 1.6fr) minmax(160px, .7fr) minmax(160px, .7fr);
      gap: 58px;
    }

    .footer-brand {
      max-width: 440px;
      margin-bottom: 18px;
      color: var(--white);
      font-size: 21px;
    }

    .footer-brand:hover {
      color: var(--white);
    }

    .footer-brand .brand-mark {
      border-color: var(--white);
    }

    .footer-copy {
      max-width: 520px;
      margin-bottom: 0;
      color: #BDB9C2;
      font-size: 15px;
    }

    .footer-col h3 {
      margin-bottom: 16px;
      color: var(--white);
      font-size: 16px;
    }

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

    .footer-links li + li {
      margin-top: 8px;
    }

    .footer-links a {
      display: inline-flex;
      min-height: 38px;
      align-items: center;
      color: #C9C5CE;
      font-size: 14px;
    }

    .footer-links a:hover,
    .footer-links a:focus {
      color: var(--yellow);
      text-decoration: underline;
      text-underline-offset: 4px;
    }

    .footer-bottom {
      display: flex;
      padding-top: 22px;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      border-top: 1px solid rgba(255, 255, 255, .14);
      color: #99949F;
      font-size: 13px;
    }

    @media screen and (max-width: 1120px) {
      .desktop-nav {
        gap: 16px;
      }

      .nav-side {
        gap: 16px;
      }

      .brand {
        max-width: 260px;
        font-size: 16px;
      }

      .header-cta {
        display: none;
      }

      .content-layout {
        grid-template-columns: 220px minmax(0, 1fr);
        gap: 38px;
      }

      .scene-grid {
        gap: 30px;
      }
    }

    @media screen and (max-width: 900px) {
      :root {
        --section-space: 68px;
      }

      h1 {
        font-size: 44px;
      }

      h2 {
        font-size: 34px;
      }

      .desktop-nav {
        display: none;
      }

      .mobile-bar {
        display: grid;
        width: min(calc(100% - 44px), var(--container));
        min-height: 74px;
        margin: 0 auto;
        grid-template-columns: 46px minmax(0, 1fr) 46px;
        align-items: center;
        gap: 10px;
      }

      .mobile-bar .brand {
        max-width: 100%;
        font-size: 15px;
      }

      .mobile-toggle {
        display: inline-flex;
        width: 46px;
        height: 46px;
        padding: 0;
        align-items: center;
        justify-content: center;
        border: 1px solid var(--line);
        border-radius: var(--button-radius);
        background: var(--white);
        color: var(--ink);
        font-size: 25px;
      }

      .mobile-toggle:hover,
      .mobile-toggle:focus,
      .mobile-toggle[aria-expanded="true"] {
        border-color: var(--coral);
        background: var(--coral-soft);
        color: var(--coral-dark);
      }

      .mobile-menu {
        position: fixed;
        z-index: 1001;
        top: 75px;
        right: 0;
        left: 0;
        display: block;
        max-height: 0;
        overflow: hidden;
        border-bottom: 0 solid var(--line);
        background: var(--white);
        opacity: 0;
        visibility: hidden;
        transition: max-height 240ms ease, opacity var(--transition), visibility var(--transition), border-width var(--transition);
      }

      .mobile-menu.is-open {
        max-height: 340px;
        border-bottom-width: 1px;
        opacity: 1;
        visibility: visible;
        box-shadow: var(--shadow);
      }

      .mobile-menu a {
        display: flex;
        min-height: 58px;
        padding: 10px 24px;
        align-items: center;
        justify-content: space-between;
        border-top: 1px solid var(--line);
        color: var(--ink);
        font-weight: 800;
      }

      .mobile-menu a:hover,
      .mobile-menu a:focus,
      .mobile-menu a.active {
        background: var(--coral-soft);
        color: var(--coral-dark);
      }

      .content-layout {
        display: block;
      }

      .category-index {
        position: static;
        margin-bottom: 42px;
        padding: 12px 0;
        overflow-x: auto;
        border-bottom: 1px solid var(--line);
        scrollbar-width: thin;
      }

      .category-index .index-label {
        margin-bottom: 8px;
      }

      .category-index ul {
        display: flex;
        width: max-content;
        gap: 8px;
      }

      .category-index li + li {
        border-top: 0;
      }

      .category-index a {
        min-height: 44px;
        padding: 8px 12px;
        border: 1px solid var(--line);
        border-radius: 6px;
        background: var(--white);
      }

      .category-index a.is-current {
        border-color: var(--coral);
        background: var(--coral-soft);
      }

      .category-index .index-number {
        margin-left: 6px;
      }

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

      .advantage {
        min-height: 0;
      }

      .advantage + .advantage {
        border-top: 1px solid var(--line);
        border-left: 0;
      }

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

      .faq-layout {
        gap: 34px;
      }

      .faq-intro {
        position: static;
      }

      .scene-media,
      .scene-media img {
        min-height: 420px;
      }

      .related-inner,
      .cta-inner {
        grid-template-columns: 1fr;
      }

      .cta-actions {
        justify-content: flex-start;
      }

      .footer-grid {
        grid-template-columns: 1.4fr 1fr 1fr;
        gap: 30px;
      }
    }

    @media screen and (max-width: 640px) {
      :root {
        --section-space: 58px;
      }

      html {
        scroll-padding-top: 82px;
      }

      body {
        font-size: 16px;
        line-height: 1.78;
      }

      .site-container {
        width: min(calc(100% - 32px), var(--container));
      }

      h1 {
        font-size: 36px;
        line-height: 1.25;
      }

      h2 {
        font-size: 30px;
      }

      h3 {
        font-size: 21px;
      }

      .mobile-bar {
        width: calc(100% - 32px);
      }

      .mobile-bar .brand {
        font-size: 13px;
      }

      .mobile-bar .brand-mark {
        width: 27px;
        min-width: 27px;
        height: 27px;
      }

      .hero-inner {
        padding-top: 42px;
        padding-bottom: 52px;
      }

      .hero-summary {
        font-size: 17px;
      }

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

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

      .hero-ruler {
        grid-template-columns: repeat(2, 1fr);
        row-gap: 28px;
      }

      .hero-ruler span:nth-child(even) {
        text-align: right;
      }

      .hero-ruler span:nth-child(even)::before {
        right: 0;
        left: auto;
      }

      .selection-item {
        min-height: 0;
        padding: 24px 0;
        grid-template-columns: 50px minmax(0, 1fr);
        gap: 14px;
      }

      .selection-item:hover {
        padding-right: 8px;
        padding-left: 8px;
      }

      .item-number {
        font-size: 17px;
      }

      .item-number::after {
        width: 25px;
      }

      .item-body h3 {
        font-size: 22px;
      }

      .item-action {
        display: none;
      }

      .item-time {
        width: 100%;
        margin: 3px 0 0;
      }

      .advantage {
        padding: 25px 22px;
      }

      .scene-media,
      .scene-media img {
        min-height: 340px;
        aspect-ratio: 4 / 3;
      }

      .scene-caption {
        padding: 18px;
      }

      .main-quote p {
        font-size: 22px;
      }

      .accordion-title {
        padding-left: 14px;
        font-size: 16px;
      }

      .related-copy {
        align-items: flex-start;
      }

      .related-copy h2 {
        font-size: 23px;
      }

      .related-inner .button,
      .cta-actions,
      .cta-actions .button {
        width: 100%;
      }

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

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

      .footer-brand {
        font-size: 17px;
      }

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

    @media screen and (max-width: 390px) {
      .mobile-bar .brand {
        gap: 7px;
        font-size: 12px;
      }

      .mobile-bar .brand-mark {
        width: 25px;
        min-width: 25px;
        height: 25px;
      }

      h1 {
        font-size: 34px;
      }

      .selection-item {
        grid-template-columns: 42px minmax(0, 1fr);
      }

      .scene-media,
      .scene-media img {
        min-height: 290px;
      }

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

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

    @media (prefers-reduced-motion: reduce) {
      html {
        scroll-behavior: auto;
      }

      *,
      *::before,
      *::after {
        scroll-behavior: auto !important;
        transition-duration: .01ms !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
      }
    }

/* roulang page: category2 */
:root {
            --coral: #E84D62;
            --coral-dark: #CC3F53;
            --coral-soft: #FFF0F2;
            --yellow: #F3C64E;
            --yellow-soft: #FFF8DF;
            --ink: #211F26;
            --ink-soft: #37333D;
            --muted: #746F7B;
            --line: #DEDCE2;
            --cool: #F7F8FA;
            --white: #FFFFFF;
            --success: #247A52;
            --danger: #B52F44;
            --radius: 8px;
            --button-radius: 6px;
            --shadow: 0 8px 24px rgba(33, 31, 38, .08);
            --shadow-strong: 0 18px 44px rgba(33, 31, 38, .14);
            --container: 1220px;
            --section-space: 76px;
            --transition: 200ms ease;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 98px;
        }

        body {
            margin: 0;
            overflow-x: hidden;
            color: var(--ink);
            background: var(--white);
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
            font-size: 17px;
            line-height: 1.82;
            letter-spacing: 0;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }

        body.menu-open {
            overflow: hidden;
        }

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

        h1,
        h2,
        h3 {
            color: var(--ink);
            font-weight: 900;
            line-height: 1.24;
            letter-spacing: 0;
        }

        h1 {
            margin-bottom: 22px;
            font-size: 52px;
        }

        h2 {
            margin-bottom: 18px;
            font-size: 36px;
        }

        h3 {
            margin-bottom: 12px;
            font-size: 23px;
        }

        p {
            margin-bottom: 1em;
        }

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

        a:hover {
            color: var(--coral-dark);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(243, 198, 78, .72);
            outline-offset: 3px;
        }

        button,
        input,
        textarea,
        select {
            font: inherit;
            letter-spacing: 0;
        }

        button,
        a {
            -webkit-tap-highlight-color: transparent;
        }

        button {
            cursor: pointer;
        }

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

        .site-container {
            width: min(calc(100% - 56px), var(--container));
            margin-right: auto;
            margin-left: auto;
        }

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

        .section--cool {
            background: var(--cool);
        }

        .section--ink {
            color: var(--white);
            background: var(--ink);
        }

        .section--ink h2,
        .section--ink h3 {
            color: var(--white);
        }

        .section-heading {
            max-width: 770px;
            margin-bottom: 42px;
        }

        .section-heading p {
            margin-bottom: 0;
            color: var(--muted);
            font-size: 18px;
        }

        .eyebrow {
            display: inline-flex;
            margin-bottom: 14px;
            align-items: center;
            gap: 10px;
            color: var(--coral-dark);
            font-size: 14px;
            font-weight: 800;
        }

        .eyebrow::before {
            width: 28px;
            height: 3px;
            content: "";
            background: var(--yellow);
        }

        .button {
            display: inline-flex;
            min-height: 48px;
            margin: 0;
            padding: 13px 22px;
            align-items: center;
            justify-content: center;
            gap: 10px;
            border: 1px solid transparent;
            border-radius: var(--button-radius);
            background: var(--coral);
            color: var(--white);
            font-weight: 800;
            line-height: 1.25;
            box-shadow: 0 8px 18px rgba(232, 77, 98, .2);
            transition: color var(--transition), background-color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
        }

        .button:hover,
        .button:focus {
            color: var(--white);
            background: var(--coral-dark);
            transform: translateY(-1px);
            box-shadow: 0 12px 22px rgba(204, 63, 83, .24);
        }

        .button:active {
            transform: translateY(0);
            box-shadow: 0 4px 10px rgba(204, 63, 83, .18);
        }

        .button.secondary {
            border-color: var(--ink);
            background: transparent;
            color: var(--ink);
            box-shadow: none;
        }

        .button.secondary:hover,
        .button.secondary:focus {
            border-color: var(--ink);
            background: var(--cool);
            color: var(--ink);
        }

        .button.light {
            border-color: rgba(255, 255, 255, .42);
            background: transparent;
            color: var(--white);
            box-shadow: none;
        }

        .button.light:hover,
        .button.light:focus {
            border-color: var(--white);
            background: var(--white);
            color: var(--ink);
        }

        .button[disabled],
        .button.is-disabled {
            cursor: not-allowed;
            opacity: .55;
            transform: none;
            box-shadow: none;
        }

        .text-link {
            display: inline-flex;
            min-height: 44px;
            align-items: center;
            gap: 8px;
            border-bottom: 1px solid currentColor;
            color: var(--ink);
            font-weight: 800;
        }

        .text-link:hover {
            gap: 12px;
            color: var(--coral-dark);
        }

        .tag {
            display: inline-flex;
            min-height: 28px;
            padding: 4px 9px;
            align-items: center;
            border: 1px solid var(--line);
            border-radius: 4px;
            background: var(--white);
            color: var(--muted);
            font-size: 13px;
            font-weight: 700;
            line-height: 1.2;
        }

        .site-header {
            position: sticky;
            z-index: 1000;
            top: 0;
            width: 100%;
            border-bottom: 1px solid rgba(222, 220, 226, .9);
            background: rgba(255, 255, 255, .97);
            box-shadow: 0 4px 16px rgba(33, 31, 38, .03);
        }

        .top-bar {
            display: block;
            max-width: none;
            padding: 0;
            background: transparent;
        }

        .desktop-nav {
            display: grid;
            width: min(calc(100% - 56px), var(--container));
            min-height: 82px;
            margin: 0 auto;
            grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
            align-items: center;
            gap: 30px;
        }

        .nav-side {
            display: flex;
            min-width: 0;
            align-items: center;
            gap: 30px;
        }

        .nav-side--right {
            justify-content: flex-end;
        }

        .nav-link {
            position: relative;
            display: inline-flex;
            min-height: 48px;
            padding: 4px 0;
            align-items: center;
            color: var(--ink-soft);
            font-size: 15px;
            font-weight: 800;
            white-space: nowrap;
        }

        .nav-link::after {
            position: absolute;
            right: 0;
            bottom: 5px;
            left: 0;
            height: 3px;
            content: "";
            background: var(--coral);
            transform: scaleX(0);
            transform-origin: center;
            transition: transform var(--transition);
        }

        .nav-link:hover,
        .nav-link.active {
            color: var(--coral-dark);
        }

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

        .brand,
        .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 11px;
            color: var(--ink);
            font-weight: 900;
            line-height: 1.3;
            letter-spacing: 0;
        }

        .brand {
            justify-self: center;
            font-size: 18px;
            white-space: nowrap;
        }

        .brand:hover,
        .footer-brand:hover {
            color: var(--coral-dark);
        }

        .brand-mark {
            display: inline-flex;
            width: 30px;
            height: 30px;
            flex: 0 0 30px;
            align-items: center;
            justify-content: center;
            gap: 2px;
            border-radius: 50%;
            background: var(--ink);
        }

        .brand-mark span {
            display: block;
            width: 2px;
            background: var(--yellow);
        }

        .brand-mark span:nth-child(1),
        .brand-mark span:nth-child(5) {
            height: 7px;
        }

        .brand-mark span:nth-child(2),
        .brand-mark span:nth-child(4) {
            height: 13px;
        }

        .brand-mark span:nth-child(3) {
            height: 18px;
            background: var(--coral);
        }

        .header-cta {
            min-height: 44px;
            padding: 11px 17px;
            font-size: 14px;
            white-space: nowrap;
        }

        .mobile-bar,
        .mobile-menu {
            display: none;
        }

        .inner-hero {
            position: relative;
            overflow: hidden;
            padding: 70px 0 58px;
            border-bottom: 1px solid var(--line);
            background: var(--cool);
        }

        .hero-grid {
            align-items: end;
        }

        .hero-copy {
            max-width: 830px;
        }

        .breadcrumb {
            display: flex;
            margin: 0 0 26px;
            padding: 0;
            flex-wrap: wrap;
            align-items: center;
            gap: 9px;
            list-style: none;
            color: var(--muted);
            font-size: 14px;
            font-weight: 700;
        }

        .breadcrumb li + li::before {
            margin-right: 9px;
            content: "/";
            color: #AAA5B0;
        }

        .hero-summary {
            max-width: 790px;
            margin-bottom: 30px;
            color: var(--ink-soft);
            font-size: 19px;
            line-height: 1.85;
        }

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

        .status-panel {
            max-width: 320px;
            margin-left: auto;
            padding-left: 28px;
            border-left: 1px solid var(--line);
        }

        .status-label {
            display: block;
            margin-bottom: 16px;
            color: var(--muted);
            font-size: 13px;
            font-weight: 800;
        }

        .status-icons {
            display: grid;
            grid-template-columns: repeat(3, 54px);
            gap: 9px;
        }

        .status-icon {
            display: inline-flex;
            width: 54px;
            height: 54px;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--line);
            border-radius: var(--radius);
            background: var(--white);
            color: var(--ink);
            font-size: 23px;
            box-shadow: 0 5px 14px rgba(33, 31, 38, .05);
        }

        .status-icon.is-current {
            border-color: var(--coral);
            background: var(--coral-soft);
            color: var(--coral-dark);
        }

        .status-track {
            position: relative;
            height: 4px;
            margin: 20px 0 13px;
            overflow: hidden;
            background: var(--line);
        }

        .status-track span {
            display: block;
            width: 68%;
            height: 100%;
            background: var(--coral);
        }

        .status-caption {
            margin: 0;
            color: var(--muted);
            font-size: 14px;
            line-height: 1.65;
        }

        .featured-layout {
            display: grid;
            grid-template-columns: minmax(0, 8fr) minmax(270px, 4fr);
            gap: 44px;
            align-items: stretch;
        }

        .featured-story {
            display: grid;
            overflow: hidden;
            grid-template-columns: minmax(0, 1.08fr) minmax(290px, .92fr);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            background: var(--white);
            box-shadow: var(--shadow);
        }

        .featured-media {
            position: relative;
            min-height: 430px;
            overflow: hidden;
            background: #E9E8EB;
        }

        .featured-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .media-index {
            position: absolute;
            top: 20px;
            left: 20px;
            display: inline-flex;
            min-width: 48px;
            min-height: 48px;
            padding: 8px;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--yellow);
            color: var(--ink);
            font-size: 14px;
            font-weight: 900;
            box-shadow: 0 5px 14px rgba(33, 31, 38, .15);
        }

        .featured-content {
            display: flex;
            padding: 38px;
            flex-direction: column;
            justify-content: center;
        }

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

        .featured-content p {
            color: var(--muted);
        }

        .progress-rule {
            display: flex;
            margin: 22px 0;
            align-items: center;
            gap: 12px;
        }

        .progress-rule::before {
            width: 12px;
            height: 12px;
            flex: 0 0 12px;
            content: "";
            border: 3px solid var(--coral);
            border-radius: 50%;
        }

        .progress-rule span {
            display: block;
            width: 72%;
            height: 2px;
            background: var(--line);
        }

        .progress-rule span::before {
            display: block;
            width: 48%;
            height: 2px;
            content: "";
            background: var(--coral);
        }

        .quick-index {
            padding: 30px;
            border-top: 4px solid var(--yellow);
            border-radius: var(--radius);
            background: var(--ink);
            color: var(--white);
        }

        .quick-index h2 {
            color: var(--white);
            font-size: 25px;
        }

        .quick-index > p {
            color: #C9C5CE;
            font-size: 15px;
        }

        .index-list {
            margin: 26px 0 0;
            padding: 0;
            list-style: none;
        }

        .index-list li {
            border-top: 1px solid rgba(255, 255, 255, .16);
        }

        .index-list a {
            display: grid;
            min-height: 62px;
            padding: 10px 0;
            grid-template-columns: 34px 1fr 18px;
            align-items: center;
            color: var(--white);
            font-size: 15px;
            font-weight: 800;
        }

        .index-list a:hover {
            color: var(--yellow);
            transform: translateX(3px);
        }

        .index-number {
            color: var(--yellow);
            font-size: 12px;
        }

        .timeline-layout {
            display: grid;
            grid-template-columns: minmax(0, 8fr) minmax(280px, 4fr);
            gap: 58px;
            align-items: start;
        }

        .guide-group + .guide-group {
            margin-top: 58px;
        }

        .group-heading {
            display: grid;
            margin-bottom: 12px;
            grid-template-columns: 72px 1fr;
            align-items: start;
            gap: 20px;
        }

        .chapter-no {
            display: inline-flex;
            width: 58px;
            height: 58px;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--ink);
            border-radius: 50%;
            background: var(--yellow-soft);
            color: var(--ink);
            font-size: 14px;
            font-weight: 900;
        }

        .group-heading p {
            margin: 0;
            color: var(--muted);
        }

        .timeline-items {
            position: relative;
            margin-left: 28px;
            padding-left: 63px;
        }

        .timeline-items::before {
            position: absolute;
            top: 4px;
            bottom: 8px;
            left: 0;
            width: 1px;
            content: "";
            background: var(--line);
        }

        .timeline-items::after {
            position: absolute;
            top: 4px;
            bottom: 8px;
            left: -3px;
            width: 7px;
            content: "";
            background-image: repeating-linear-gradient(to bottom, var(--coral) 0, var(--coral) 3px, transparent 3px, transparent 18px);
        }

        .timeline-item {
            position: relative;
            padding: 26px 0;
            border-bottom: 1px solid var(--line);
        }

        .timeline-item::before {
            position: absolute;
            top: 36px;
            left: -68px;
            width: 11px;
            height: 11px;
            content: "";
            border: 3px solid var(--white);
            border-radius: 50%;
            background: var(--coral);
            box-shadow: 0 0 0 1px var(--coral);
        }

        .item-meta {
            display: flex;
            margin-bottom: 8px;
            flex-wrap: wrap;
            align-items: center;
            gap: 9px;
            color: var(--muted);
            font-size: 13px;
            font-weight: 700;
        }

        .item-meta .step {
            color: var(--coral-dark);
            font-weight: 900;
        }

        .timeline-item h3 {
            font-size: 22px;
        }

        .timeline-item p {
            margin-bottom: 12px;
            color: var(--muted);
        }

        .plain-list {
            margin: 13px 0 0;
            padding: 0;
            list-style: none;
        }

        .plain-list li {
            position: relative;
            margin: 7px 0;
            padding-left: 21px;
            color: var(--ink-soft);
        }

        .plain-list li::before {
            position: absolute;
            top: .75em;
            left: 0;
            width: 8px;
            height: 2px;
            content: "";
            background: var(--yellow);
        }

        .side-rail {
            position: sticky;
            top: 112px;
        }

        .rail-block {
            padding: 26px 0;
            border-top: 3px solid var(--ink);
        }

        .rail-block + .rail-block {
            border-top-width: 1px;
            border-top-color: var(--line);
        }

        .rail-block h3 {
            font-size: 19px;
        }

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

        .rail-list li {
            border-bottom: 1px solid var(--line);
        }

        .rail-list a {
            display: grid;
            min-height: 58px;
            padding: 9px 0;
            grid-template-columns: 30px 1fr 18px;
            align-items: center;
            gap: 6px;
            color: var(--ink-soft);
            font-size: 14px;
            font-weight: 800;
        }

        .rail-list a:hover {
            color: var(--coral-dark);
        }

        .rail-list strong {
            color: var(--coral-dark);
            font-size: 12px;
        }

        .rail-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .check-panel {
            padding: 24px;
            border: 1px solid var(--line);
            border-radius: var(--radius);
            background: var(--yellow-soft);
        }

        .check-list {
            margin: 17px 0 0;
            padding: 0;
            list-style: none;
        }

        .check-list li {
            position: relative;
            margin: 11px 0;
            padding-left: 29px;
            color: var(--ink-soft);
            font-size: 15px;
        }

        .check-list li::before {
            position: absolute;
            top: 5px;
            left: 0;
            display: inline-flex;
            width: 19px;
            height: 19px;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            content: "✓";
            background: var(--success);
            color: var(--white);
            font-size: 11px;
            font-weight: 900;
        }

        .comparison-strip {
            display: grid;
            overflow: hidden;
            grid-template-columns: repeat(4, 1fr);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            background: var(--white);
            box-shadow: var(--shadow);
        }

        .comparison-item {
            min-height: 180px;
            padding: 28px;
        }

        .comparison-item + .comparison-item {
            border-left: 1px solid var(--line);
        }

        .comparison-item span {
            display: block;
            margin-bottom: 26px;
            color: var(--coral-dark);
            font-size: 13px;
            font-weight: 900;
        }

        .comparison-item h3 {
            font-size: 20px;
        }

        .comparison-item p {
            margin-bottom: 0;
            color: var(--muted);
            font-size: 15px;
        }

        .related-layout {
            display: grid;
            grid-template-columns: minmax(0, 7fr) minmax(280px, 5fr);
            gap: 54px;
            align-items: center;
        }

        .related-panel {
            padding: 34px;
            border: 1px solid var(--line);
            border-left: 5px solid var(--coral);
            border-radius: var(--radius);
            background: var(--white);
            box-shadow: var(--shadow);
        }

        .related-panel p {
            color: var(--muted);
        }

        .related-route {
            display: grid;
            grid-template-columns: 44px 1fr 24px;
            align-items: center;
            gap: 14px;
        }

        .related-route .route-icon {
            display: inline-flex;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--yellow);
            color: var(--ink);
            font-size: 20px;
        }

        .related-route strong {
            display: block;
            margin-bottom: 3px;
        }

        .related-route small {
            display: block;
            color: var(--muted);
            font-size: 14px;
        }

        .accordion {
            margin: 0;
            border: 0;
            background: transparent;
        }

        .accordion-item {
            margin-bottom: 12px;
            border: 1px solid var(--line);
            border-radius: var(--radius);
            background: var(--white);
            overflow: hidden;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .accordion-item:hover {
            border-color: #C8C4CC;
        }

        .accordion-item.is-active {
            border-left: 5px solid var(--coral);
            box-shadow: var(--shadow);
        }

        .accordion-title {
            position: relative;
            min-height: 64px;
            padding: 19px 58px 19px 22px;
            border: 0;
            color: var(--ink);
            font-size: 17px;
            font-weight: 900;
            line-height: 1.55;
        }

        .accordion-title:hover,
        .accordion-title:focus {
            background: var(--cool);
            color: var(--coral-dark);
        }

        .accordion-title::before {
            right: 22px;
            width: 24px;
            height: 24px;
            margin-top: -12px;
            color: var(--coral-dark);
            content: "+";
            font-size: 24px;
            line-height: 24px;
            text-align: center;
            transition: transform var(--transition);
        }

        .is-active > .accordion-title::before {
            content: "+";
            transform: rotate(45deg);
        }

        .accordion-content {
            padding: 0 58px 24px 22px;
            border: 0;
            background: var(--white);
            color: var(--muted);
        }

        .accordion-content p:last-child {
            margin-bottom: 0;
        }

        .cta-band {
            position: relative;
            overflow: hidden;
            padding: 68px 0;
            background: var(--ink);
            color: var(--white);
        }

        .cta-band::before {
            position: absolute;
            top: 22px;
            right: 0;
            width: 31%;
            height: 30px;
            content: "";
            opacity: .7;
            background-image: repeating-linear-gradient(to right, transparent 0, transparent 9px, var(--yellow) 9px, var(--yellow) 11px);
        }

        .cta-grid {
            display: grid;
            grid-template-columns: minmax(0, 1fr) auto;
            align-items: center;
            gap: 38px;
        }

        .cta-band h2 {
            max-width: 760px;
            color: var(--white);
        }

        .cta-band p {
            max-width: 720px;
            margin-bottom: 0;
            color: #C9C5CE;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: flex-end;
            gap: 12px;
        }

        .site-footer {
            padding: 62px 0 28px;
            background: #18161C;
            color: #D6D2DA;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: minmax(0, 1.6fr) minmax(180px, .7fr) minmax(180px, .7fr);
            gap: 64px;
        }

        .footer-brand {
            margin-bottom: 17px;
            color: var(--white);
            font-size: 19px;
        }

        .footer-copy {
            max-width: 520px;
            margin-bottom: 0;
            color: #AAA5B0;
            font-size: 15px;
        }

        .footer-col h3 {
            margin-bottom: 17px;
            color: var(--white);
            font-size: 16px;
        }

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

        .footer-links li {
            margin: 8px 0;
        }

        .footer-links a {
            display: inline-flex;
            min-height: 34px;
            align-items: center;
            color: #C6C1CA;
            font-size: 14px;
        }

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

        .footer-bottom {
            display: flex;
            margin-top: 48px;
            padding-top: 22px;
            justify-content: space-between;
            gap: 22px;
            border-top: 1px solid rgba(255, 255, 255, .13);
            color: #918B98;
            font-size: 13px;
        }

        @media screen and (max-width: 1100px) {
            .desktop-nav {
                gap: 18px;
            }

            .nav-side {
                gap: 17px;
            }

            .brand {
                font-size: 16px;
            }

            .header-cta {
                display: none;
            }

            .featured-layout,
            .timeline-layout {
                gap: 34px;
            }

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

            .featured-media {
                min-height: 320px;
                aspect-ratio: 16 / 9;
            }

            .comparison-item {
                padding: 23px;
            }
        }

        @media screen and (max-width: 900px) {
            :root {
                --section-space: 66px;
            }

            h1 {
                font-size: 43px;
            }

            h2 {
                font-size: 32px;
            }

            .desktop-nav {
                display: none;
            }

            .mobile-bar {
                display: grid;
                width: min(calc(100% - 44px), var(--container));
                min-height: 74px;
                margin: 0 auto;
                grid-template-columns: 48px minmax(0, 1fr) 48px;
                align-items: center;
            }

            .mobile-bar .brand {
                max-width: 100%;
                font-size: 16px;
                white-space: normal;
                text-align: center;
            }

            .mobile-toggle {
                display: inline-flex;
                width: 44px;
                height: 44px;
                padding: 0;
                align-items: center;
                justify-content: center;
                border: 1px solid var(--line);
                border-radius: var(--button-radius);
                background: var(--white);
                color: var(--ink);
                font-size: 24px;
            }

            .mobile-toggle:hover {
                border-color: var(--coral);
                background: var(--coral-soft);
                color: var(--coral-dark);
            }

            .mobile-menu {
                position: fixed;
                z-index: 999;
                top: 75px;
                right: 0;
                bottom: 0;
                left: 0;
                display: block;
                padding: 14px 22px 34px;
                overflow-y: auto;
                background: var(--white);
                opacity: 0;
                visibility: hidden;
                transform: translateY(-12px);
                transition: opacity var(--transition), visibility var(--transition), transform var(--transition);
            }

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

            .mobile-menu a {
                display: flex;
                min-height: 60px;
                padding: 10px 4px;
                align-items: center;
                justify-content: space-between;
                border-bottom: 1px solid var(--line);
                color: var(--ink);
                font-weight: 800;
            }

            .mobile-menu a.active {
                color: var(--coral-dark);
            }

            .mobile-menu a.active span::after {
                display: inline-block;
                width: 7px;
                height: 7px;
                margin-left: 9px;
                border-radius: 50%;
                background: var(--yellow);
                content: "";
            }

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

            .status-panel {
                max-width: none;
                margin: 0;
                padding: 25px 0 0;
                border-top: 1px solid var(--line);
                border-left: 0;
            }

            .featured-layout,
            .timeline-layout,
            .related-layout {
                grid-template-columns: 1fr;
            }

            .quick-index {
                display: grid;
                grid-template-columns: minmax(180px, .8fr) minmax(0, 1.2fr);
                gap: 28px;
            }

            .quick-index .index-list {
                margin-top: 0;
            }

            .side-rail {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }

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

            .comparison-item:nth-child(3) {
                border-left: 0;
                border-top: 1px solid var(--line);
            }

            .comparison-item:nth-child(4) {
                border-top: 1px solid var(--line);
            }

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

            .cta-actions {
                justify-content: flex-start;
            }
        }

        @media screen and (max-width: 640px) {
            :root {
                --section-space: 54px;
            }

            html {
                scroll-padding-top: 82px;
            }

            body {
                font-size: 16px;
                line-height: 1.78;
            }

            h1 {
                font-size: 36px;
                overflow-wrap: anywhere;
            }

            h2 {
                font-size: 29px;
            }

            h3 {
                font-size: 21px;
            }

            .site-container {
                width: min(calc(100% - 32px), var(--container));
            }

            .mobile-bar {
                width: calc(100% - 32px);
                grid-template-columns: 44px minmax(0, 1fr) 44px;
            }

            .mobile-bar .brand {
                gap: 7px;
                font-size: 13px;
                overflow-wrap: anywhere;
            }

            .mobile-bar .brand-mark {
                width: 26px;
                height: 26px;
                flex-basis: 26px;
            }

            .inner-hero {
                padding: 44px 0 40px;
            }

            .hero-summary {
                font-size: 17px;
            }

            .hero-actions {
                display: grid;
                grid-template-columns: 1fr;
            }

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

            .status-icons {
                grid-template-columns: repeat(3, 48px);
            }

            .status-icon {
                width: 48px;
                height: 48px;
            }

            .featured-media {
                min-height: 230px;
            }

            .featured-content {
                padding: 27px 22px;
            }

            .quick-index {
                display: block;
                padding: 26px 22px;
            }

            .quick-index .index-list {
                margin-top: 22px;
            }

            .group-heading {
                grid-template-columns: 50px 1fr;
                gap: 13px;
            }

            .chapter-no {
                width: 46px;
                height: 46px;
            }

            .timeline-items {
                margin-left: 17px;
                padding-left: 35px;
            }

            .timeline-item::before {
                left: -40px;
            }

            .side-rail {
                grid-template-columns: 1fr;
                gap: 0;
            }

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

            .comparison-item + .comparison-item {
                border-top: 1px solid var(--line);
                border-left: 0;
            }

            .related-panel {
                padding: 25px 21px;
            }

            .accordion-title {
                padding: 17px 52px 17px 17px;
                font-size: 16px;
            }

            .accordion-title::before {
                right: 17px;
            }

            .accordion-content {
                padding: 0 17px 20px;
            }

            .cta-band {
                padding: 54px 0;
            }

            .cta-actions {
                display: grid;
                grid-template-columns: 1fr;
            }

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

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

            .footer-bottom {
                flex-direction: column;
                gap: 7px;
            }
        }

        @media screen and (max-width: 390px) {
            h1 {
                font-size: 34px;
            }

            .mobile-bar .brand {
                font-size: 12px;
            }

            .mobile-bar .brand-mark {
                display: none;
            }

            .featured-media {
                min-height: 205px;
            }

            .related-route {
                grid-template-columns: 40px 1fr 18px;
                gap: 10px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            html {
                scroll-behavior: auto;
            }

            *,
            *::before,
            *::after {
                scroll-behavior: auto !important;
                transition-duration: .01ms !important;
                animation-duration: .01ms !important;
                animation-iteration-count: 1 !important;
            }
        }