/* roulang page: index */
:root {
            --ink: #11110f;
            --ink-soft: #1c1c19;
            --paper: #f3f0e9;
            --paper-bright: #fbfaf6;
            --coral: #ff5a46;
            --coral-hover: #ff705e;
            --lime: #c8f04a;
            --text: #1c1c19;
            --muted: #68675f;
            --muted-dark: #c7c4ba;
            --line: rgba(28, 28, 25, .12);
            --line-dark: rgba(255, 255, 255, .16);
            --white: #fffdf8;
            --danger: #d63f32;
            --success: #477100;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 22px;
            --radius-xl: 28px;
            --shadow: 0 14px 40px rgba(22, 22, 18, .08);
            --shadow-hover: 0 20px 46px rgba(22, 22, 18, .13);
            --container: 1240px;
            --header-height: 132px;
            --ease: 220ms ease;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 150px;
        }

        body {
            margin: 0;
            overflow-x: hidden;
            background: var(--paper);
            color: var(--text);
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            letter-spacing: 0;
            -webkit-font-smoothing: antialiased;
        }

        body.age-locked { overflow: hidden; }

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

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

        button { cursor: pointer; }

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

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

        ::selection {
            background: var(--coral);
            color: var(--white);
        }

        .site-container {
            width: min(calc(100% - 40px), var(--container));
            margin-inline: auto;
        }

        .section {
            position: relative;
            padding: 108px 0;
        }

        .section-kicker {
            display: inline-flex;
            align-items: center;
            gap: 9px;
            margin-bottom: 16px;
            color: var(--coral);
            font-size: 13px;
            font-weight: 800;
        }

        .section-kicker::before {
            width: 28px;
            height: 2px;
            background: currentColor;
            content: "";
        }

        .section-title {
            max-width: 760px;
            margin: 0;
            color: var(--text);
            font-size: 44px;
            font-weight: 800;
            line-height: 1.16;
            letter-spacing: 0;
        }

        .section-lead {
            max-width: 760px;
            margin: 20px 0 0;
            color: var(--muted);
            font-size: 17px;
            line-height: 1.8;
        }

        .button {
            display: inline-flex;
            min-height: 48px;
            margin: 0;
            padding: 12px 24px;
            align-items: center;
            justify-content: center;
            gap: 10px;
            border: 1px solid transparent;
            border-radius: 999px;
            background: var(--coral);
            color: var(--white);
            font-size: 15px;
            font-weight: 800;
            line-height: 1.3;
            transition: transform var(--ease), box-shadow var(--ease), background-color var(--ease), border-color var(--ease);
        }

        .button:hover,
        .button:focus {
            background: var(--coral-hover);
            color: var(--white);
            box-shadow: 0 10px 24px rgba(255, 90, 70, .22);
            transform: translateY(-2px);
        }

        .button:active {
            box-shadow: none;
            transform: translateY(0);
        }

        .button.hollow {
            border-color: rgba(255, 255, 255, .42);
            background: transparent;
            color: var(--white);
        }

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

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

        .button.dark:hover,
        .button.dark:focus {
            background: #2b2b26;
        }

        .button.small {
            min-height: 44px;
            padding: 10px 20px;
            font-size: 14px;
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border-bottom: 1px solid currentColor;
            color: var(--text);
            font-weight: 800;
            line-height: 1.5;
        }

        .text-link::after {
            content: "→";
            transition: transform var(--ease);
        }

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

        .badge {
            display: inline-flex;
            min-width: 0;
            padding: 6px 10px;
            align-items: center;
            gap: 7px;
            border: 1px solid var(--line);
            border-radius: 999px;
            background: rgba(255, 255, 255, .78);
            color: var(--text);
            font-size: 12px;
            font-weight: 800;
            line-height: 1.2;
        }

        .badge.status::before {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--lime);
            content: "";
        }

        .badge.coral {
            border-color: transparent;
            background: var(--coral);
            color: var(--white);
        }

        .site-header {
            position: sticky;
            z-index: 80;
            top: 0;
            background: var(--ink);
            color: var(--white);
        }

        .header-main {
            min-height: 74px;
            border-bottom: 1px solid var(--line-dark);
        }

        .header-main .site-container {
            min-height: 74px;
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .brand {
            display: inline-flex;
            min-width: 280px;
            align-items: center;
            gap: 12px;
            color: var(--white);
            font-size: 16px;
            font-weight: 800;
            line-height: 1.3;
        }

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

        .brand-mark {
            position: relative;
            width: 38px;
            height: 38px;
            flex: 0 0 38px;
            border: 1px solid rgba(255, 255, 255, .4);
            border-radius: 50%;
        }

        .brand-mark::before,
        .brand-mark::after {
            position: absolute;
            left: 9px;
            right: 9px;
            height: 4px;
            border-radius: 2px;
            content: "";
        }

        .brand-mark::before {
            top: 11px;
            background: var(--coral);
        }

        .brand-mark::after {
            bottom: 11px;
            background: var(--lime);
        }

        .header-tools {
            position: relative;
            display: flex;
            flex: 1;
            align-items: center;
            justify-content: flex-end;
            gap: 14px;
        }

        .search-wrap {
            position: relative;
            width: min(390px, 100%);
        }

        .search-field {
            width: 100%;
            height: 46px;
            margin: 0;
            padding: 0 46px 0 17px;
            border: 1px solid var(--line-dark);
            border-radius: 999px;
            background: rgba(255, 255, 255, .07);
            color: var(--white);
            box-shadow: none;
        }

        .search-field::placeholder { color: #a9a79f; }

        .search-field:focus {
            border-color: var(--lime);
            background: rgba(255, 255, 255, .1);
            box-shadow: none;
        }

        .search-submit {
            position: absolute;
            top: 3px;
            right: 4px;
            width: 40px;
            height: 40px;
            padding: 0;
            border: 0;
            border-radius: 50%;
            background: transparent;
            color: var(--white);
            font-size: 20px;
        }

        .search-submit:hover { background: rgba(255, 255, 255, .1); }

        .search-suggestions {
            position: absolute;
            z-index: 90;
            top: calc(100% + 10px);
            right: 0;
            left: 0;
            display: none;
            padding: 14px;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            background: var(--paper-bright);
            color: var(--text);
            box-shadow: var(--shadow-hover);
        }

        .search-suggestions.is-open { display: block; }

        .suggestion-title {
            margin: 0 0 8px;
            color: var(--muted);
            font-size: 12px;
            font-weight: 800;
        }

        .suggestion-item {
            display: flex;
            padding: 10px;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            border-radius: var(--radius-sm);
            font-size: 14px;
        }

        .suggestion-item:hover { background: #ece8de; }

        .suggestion-item small {
            color: var(--success);
            white-space: nowrap;
        }

        .menu-toggle {
            display: none;
            width: 44px;
            height: 44px;
            padding: 0;
            border: 1px solid var(--line-dark);
            border-radius: 50%;
            background: transparent;
            color: var(--white);
            font-size: 22px;
        }

        .channel-bar {
            min-height: 58px;
            background: #181815;
        }

        .channel-scroll {
            display: flex;
            min-height: 58px;
            align-items: center;
            gap: 10px;
            overflow-x: auto;
            scrollbar-width: none;
            -webkit-overflow-scrolling: touch;
        }

        .channel-scroll::-webkit-scrollbar { display: none; }

        .channel-link {
            display: inline-flex;
            min-height: 38px;
            padding: 8px 17px;
            flex: 0 0 auto;
            align-items: center;
            border: 1px solid var(--line-dark);
            border-radius: 999px;
            color: var(--muted-dark);
            font-size: 14px;
            font-weight: 800;
            white-space: nowrap;
        }

        .channel-link:hover {
            border-color: var(--coral);
            color: var(--white);
            transform: translateY(-1px);
        }

        .channel-link.active {
            border-color: var(--coral);
            background: var(--coral);
            color: var(--white);
        }

        .hero {
            position: relative;
            min-height: min(760px, calc(100vh - 70px));
            display: flex;
            overflow: hidden;
            align-items: flex-end;
            background: #10100e;
            color: var(--white);
        }

        .hero-media {
            position: absolute;
            inset: 0;
        }

        .hero-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            object-position: center 54%;
            filter: saturate(.65) contrast(1.08);
        }

        .hero-media::after {
            position: absolute;
            inset: 0;
            background:
                linear-gradient(90deg, rgba(17, 17, 15, .98) 0%, rgba(17, 17, 15, .86) 42%, rgba(17, 17, 15, .24) 78%),
                linear-gradient(0deg, rgba(17, 17, 15, .96) 0%, transparent 44%);
            content: "";
        }

        .hero .site-container {
            position: relative;
            z-index: 2;
            padding-top: 92px;
            padding-bottom: 54px;
        }

        .hero-copy { max-width: 850px; }

        .hero-label {
            display: inline-flex;
            margin-bottom: 24px;
            padding: 7px 12px;
            align-items: center;
            gap: 8px;
            border: 1px solid rgba(255, 255, 255, .3);
            border-radius: 999px;
            background: rgba(17, 17, 15, .58);
            color: var(--white);
            font-size: 13px;
            font-weight: 800;
        }

        .hero-label::before {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--lime);
            content: "";
        }

        .hero h1 {
            max-width: 830px;
            margin: 0;
            color: var(--white);
            font-size: 66px;
            font-weight: 800;
            line-height: 1.08;
            letter-spacing: 0;
        }

        .hero h1 .accent { color: var(--coral); }

        .hero-intro {
            max-width: 720px;
            margin: 25px 0 0;
            color: #d7d4ca;
            font-size: 18px;
            line-height: 1.85;
        }

        .hero-actions {
            display: flex;
            margin-top: 30px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .hero-facts {
            display: flex;
            margin: 45px 0 0;
            flex-wrap: wrap;
            gap: 0;
        }

        .hero-fact {
            min-width: 170px;
            padding: 3px 26px;
            border-left: 1px solid var(--line-dark);
        }

        .hero-fact:first-child { padding-left: 0; border-left: 0; }

        .hero-fact strong {
            display: block;
            color: var(--white);
            font-size: 24px;
            line-height: 1.25;
        }

        .hero-fact span {
            color: var(--muted-dark);
            font-size: 13px;
        }

        .hero-status {
            display: flex;
            margin-top: 44px;
            padding-top: 20px;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            border-top: 1px solid var(--line-dark);
            color: var(--muted-dark);
            font-size: 13px;
        }

        .scroll-cue {
            display: inline-flex;
            align-items: center;
            gap: 9px;
        }

        .scroll-cue::before {
            width: 32px;
            height: 1px;
            background: var(--coral);
            content: "";
        }

        .pain-section { background: var(--paper); }

        .pain-layout {
            align-items: start;
        }

        .chapter-number {
            display: block;
            color: rgba(28, 28, 25, .1);
            font-size: 112px;
            font-weight: 800;
            line-height: .8;
        }

        .pain-heading {
            margin-top: 34px;
        }

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

        .issue-item {
            display: grid;
            padding: 27px 0;
            grid-template-columns: 58px minmax(0, 1fr);
            gap: 18px;
            border-top: 1px solid var(--line);
        }

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

        .issue-index {
            color: var(--coral);
            font-size: 13px;
            font-weight: 800;
        }

        .issue-item h3 {
            margin: 0 0 7px;
            font-size: 22px;
            font-weight: 800;
            line-height: 1.35;
        }

        .issue-item p {
            margin: 0;
            color: var(--muted);
            line-height: 1.75;
        }

        .solution-section {
            background: var(--paper-bright);
        }

        .solution-shell {
            overflow: hidden;
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            background: var(--white);
            box-shadow: var(--shadow);
        }

        .solution-intro {
            padding: 54px 54px 34px;
        }

        .solution-workspace {
            display: grid;
            min-height: 480px;
            grid-template-columns: 34% 66%;
            border-top: 1px solid var(--line);
        }

        .solution-menu {
            padding: 28px;
            border-right: 1px solid var(--line);
            background: #ebe7dd;
        }

        .solution-tab {
            width: 100%;
            min-height: 62px;
            margin-bottom: 9px;
            padding: 13px 15px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            border: 1px solid transparent;
            border-radius: var(--radius-sm);
            background: transparent;
            color: var(--text);
            text-align: left;
            font-weight: 800;
            transition: background-color var(--ease), border-color var(--ease), transform var(--ease);
        }

        .solution-tab span:last-child { color: var(--muted); }

        .solution-tab:hover,
        .solution-tab.is-active {
            border-color: var(--line);
            background: var(--white);
            transform: translateX(3px);
        }

        .solution-tab.is-active span:last-child { color: var(--coral); }

        .solution-preview {
            padding: 30px;
            background: var(--paper-bright);
        }

        .preview-toolbar {
            display: flex;
            margin-bottom: 20px;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .preview-toolbar strong { font-size: 17px; }

        .preview-filter {
            padding: 7px 11px;
            border: 1px solid var(--line);
            border-radius: 999px;
            color: var(--muted);
            font-size: 12px;
        }

        .preview-panel { display: none; }
        .preview-panel.is-active { display: block; }

        .preview-item {
            display: grid;
            padding: 16px 0;
            align-items: center;
            grid-template-columns: 132px minmax(0, 1fr) auto;
            gap: 18px;
            border-top: 1px solid var(--line);
        }

        .preview-image {
            overflow: hidden;
            border-radius: var(--radius-sm);
            aspect-ratio: 16 / 10;
            background: #d9d5cc;
        }

        .preview-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--ease);
        }

        .preview-item:hover .preview-image img { transform: scale(1.025); }

        .preview-copy h3 {
            margin: 5px 0 4px;
            font-size: 18px;
            font-weight: 800;
            line-height: 1.4;
        }

        .preview-copy p {
            display: -webkit-box;
            margin: 0;
            overflow: hidden;
            color: var(--muted);
            font-size: 14px;
            -webkit-box-orient: vertical;
            -webkit-line-clamp: 2;
        }

        .preview-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 7px;
        }

        .featured-section {
            overflow: hidden;
            background: var(--paper);
        }

        .section-heading-row {
            display: flex;
            margin-bottom: 38px;
            align-items: end;
            justify-content: space-between;
            gap: 28px;
        }

        .feature-layout {
            display: grid;
            grid-template-columns: 1.42fr .78fr;
            gap: 24px;
        }

        .feature-main,
        .feature-small {
            position: relative;
            overflow: hidden;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            background: var(--ink);
            color: var(--white);
            box-shadow: var(--shadow);
            transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
        }

        .feature-main:hover,
        .feature-small:hover {
            border-color: rgba(255, 90, 70, .55);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .feature-main { min-height: 540px; }

        .feature-main img,
        .feature-small img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--ease);
        }

        .feature-main:hover img,
        .feature-small:hover img { transform: scale(1.025); }

        .feature-main::after,
        .feature-small::after {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(17, 17, 15, .98) 0%, rgba(17, 17, 15, .12) 72%);
            content: "";
        }

        .feature-overlay {
            position: absolute;
            z-index: 2;
            right: 0;
            bottom: 0;
            left: 0;
            padding: 34px;
        }

        .feature-overlay h3 {
            max-width: 680px;
            margin: 12px 0 9px;
            color: var(--white);
            font-size: 29px;
            font-weight: 800;
            line-height: 1.3;
        }

        .feature-overlay p {
            max-width: 650px;
            margin: 0;
            color: var(--muted-dark);
            line-height: 1.7;
        }

        .feature-side {
            display: grid;
            grid-template-rows: 1fr 1fr;
            gap: 24px;
        }

        .feature-small { min-height: 258px; }

        .feature-small .feature-overlay { padding: 23px; }

        .feature-small .feature-overlay h3 {
            margin: 8px 0 0;
            font-size: 20px;
        }

        .results-section {
            padding-bottom: 0;
            background: var(--ink);
            color: var(--white);
        }

        .results-section .section-title { color: var(--white); }
        .results-section .section-lead { color: var(--muted-dark); }

        .metric-band {
            display: grid;
            margin-top: 52px;
            grid-template-columns: repeat(4, 1fr);
            border-top: 1px solid var(--line-dark);
            border-bottom: 1px solid var(--line-dark);
        }

        .metric {
            padding: 36px 26px;
            border-left: 1px solid var(--line-dark);
        }

        .metric:first-child { border-left: 0; padding-left: 0; }

        .metric strong {
            display: block;
            color: var(--coral);
            font-size: 54px;
            font-weight: 800;
            line-height: 1;
        }

        .metric span {
            display: block;
            margin-top: 11px;
            color: var(--muted-dark);
            font-size: 14px;
        }

        .path-panel {
            position: relative;
            z-index: 3;
            margin-top: 60px;
            padding: 38px;
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            background: var(--white);
            color: var(--text);
            box-shadow: var(--shadow);
            transform: translateY(58px);
        }

        .path-panel h3 {
            margin: 0 0 26px;
            font-size: 24px;
            font-weight: 800;
        }

        .path-flow {
            display: grid;
            align-items: center;
            grid-template-columns: 1fr auto 1fr auto 1fr;
            gap: 16px;
        }

        .path-step {
            min-height: 110px;
            padding: 18px;
            border: 1px solid var(--line);
            border-radius: var(--radius-sm);
            background: var(--paper-bright);
        }

        .path-step b {
            display: block;
            margin-bottom: 6px;
            color: var(--coral);
            font-size: 13px;
        }

        .path-step span {
            font-weight: 800;
            line-height: 1.5;
        }

        .path-arrow {
            color: var(--coral);
            font-size: 25px;
        }

        .testimonials-section {
            padding-top: 170px;
            background: var(--paper-bright);
        }

        .quote-track {
            display: grid;
            margin-top: 42px;
            grid-auto-columns: minmax(320px, 58%);
            grid-auto-flow: column;
            gap: 20px;
            overflow-x: auto;
            padding: 4px 4px 24px;
            scroll-snap-type: x mandatory;
            scrollbar-color: var(--coral) transparent;
        }

        .quote-card {
            min-height: 280px;
            padding: 34px;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            background: var(--paper);
            scroll-snap-align: start;
            transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
        }

        .quote-card:hover {
            border-color: rgba(255, 90, 70, .55);
            box-shadow: var(--shadow);
            transform: translateY(-4px);
        }

        .quote-mark {
            color: var(--coral);
            font-size: 48px;
            font-weight: 800;
            line-height: 1;
        }

        .quote-card blockquote {
            margin: 18px 0 28px;
            padding: 0;
            border: 0;
            color: var(--text);
            font-size: 20px;
            font-weight: 700;
            line-height: 1.7;
        }

        .quote-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 15px;
            color: var(--muted);
            font-size: 13px;
        }

        .quote-person {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .quote-avatar {
            width: 34px;
            height: 34px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--ink);
            color: var(--lime);
            font-weight: 800;
        }

        .news-section { background: var(--paper); }

        .news-layout {
            display: grid;
            margin-top: 42px;
            grid-template-columns: minmax(0, 1.5fr) minmax(280px, .7fr);
            gap: 38px;
        }

        .news-list {
            margin: 0;
            padding: 0;
            list-style: none;
            border-top: 1px solid var(--line);
        }

        .news-item {
            display: grid;
            padding: 23px 0;
            align-items: center;
            grid-template-columns: 100px minmax(0, 1fr) auto;
            gap: 20px;
            border-bottom: 1px solid var(--line);
        }

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

        .news-item a {
            font-size: 18px;
            font-weight: 800;
            line-height: 1.5;
        }

        .news-item a:hover { color: var(--coral); }

        .news-arrow {
            width: 38px;
            height: 38px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--line);
            border-radius: 50%;
            color: var(--coral);
        }

        .news-aside {
            padding: 30px;
            border-left: 3px solid var(--lime);
            background: var(--ink);
            color: var(--white);
        }

        .news-aside h3 {
            margin: 16px 0 11px;
            color: var(--white);
            font-size: 24px;
            font-weight: 800;
        }

        .news-aside p {
            margin: 0 0 24px;
            color: var(--muted-dark);
        }

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

        .faq-layout {
            display: grid;
            grid-template-columns: .75fr 1.25fr;
            gap: 70px;
            align-items: start;
        }

        .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 {
            min-height: 70px;
            padding: 22px 54px 22px 0;
            border: 0;
            background: transparent;
            color: var(--text);
            font-size: 17px;
            font-weight: 800;
            line-height: 1.5;
        }

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

        .accordion-title::before {
            right: 4px;
            margin-top: -13px;
            color: var(--coral);
            content: "+";
            font-size: 25px;
        }

        .is-active > .accordion-title::before { content: "−"; }

        .accordion-content {
            padding: 0 50px 24px 0;
            border: 0;
            background: transparent;
            color: var(--muted);
            line-height: 1.85;
        }

        .cta-section {
            padding: 0 0 108px;
            background: var(--paper-bright);
        }

        .cta-panel {
            position: relative;
            overflow: hidden;
            padding: 66px;
            border-radius: var(--radius-lg);
            background: var(--ink);
            color: var(--white);
        }

        .cta-panel::after {
            position: absolute;
            top: 0;
            right: 8%;
            width: 170px;
            height: 8px;
            background: var(--lime);
            content: "";
        }

        .cta-grid {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr .85fr;
            gap: 60px;
            align-items: center;
        }

        .cta-panel h2 {
            margin: 0;
            color: var(--white);
            font-size: 42px;
            font-weight: 800;
            line-height: 1.2;
        }

        .cta-panel p {
            margin: 17px 0 0;
            color: var(--muted-dark);
        }

        .subscribe-form label {
            display: block;
            margin-bottom: 8px;
            color: var(--white);
            font-size: 14px;
            font-weight: 800;
        }

        .subscribe-row {
            display: flex;
            gap: 10px;
        }

        .subscribe-row input {
            height: 50px;
            margin: 0;
            flex: 1;
            border: 1px solid var(--line-dark);
            border-radius: 999px;
            background: rgba(255, 255, 255, .08);
            color: var(--white);
            box-shadow: none;
        }

        .subscribe-row input:focus {
            border-color: var(--lime);
            background: rgba(255, 255, 255, .12);
            box-shadow: none;
        }

        .form-message {
            min-height: 24px;
            margin: 8px 0 0;
            color: var(--muted-dark);
            font-size: 13px;
        }

        .form-message.error { color: #ff9e93; }
        .form-message.success { color: var(--lime); }

        .site-footer {
            padding: 72px 0 26px;
            background: var(--ink);
            color: var(--white);
        }

        .footer-main {
            display: grid;
            padding-bottom: 48px;
            grid-template-columns: 5fr 7fr;
            gap: 70px;
            border-bottom: 1px solid var(--line-dark);
        }

        .footer-brand .brand {
            min-width: 0;
            align-items: flex-start;
        }

        .footer-brand p {
            max-width: 470px;
            margin: 19px 0 0;
            color: var(--muted-dark);
        }

        .footer-links {
            display: flex;
            justify-content: flex-end;
            gap: 50px;
        }

        .footer-group h3 {
            margin: 0 0 14px;
            color: var(--white);
            font-size: 14px;
            font-weight: 800;
        }

        .footer-group a {
            display: block;
            margin-top: 9px;
            color: var(--muted-dark);
            font-size: 14px;
        }

        .footer-group a:hover { color: var(--coral); }

        .footer-bottom {
            display: flex;
            padding-top: 24px;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            color: #99978f;
            font-size: 12px;
        }

        .footer-legal {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
        }

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

        .back-top {
            position: fixed;
            z-index: 70;
            right: 22px;
            bottom: 22px;
            width: 46px;
            height: 46px;
            display: flex;
            visibility: hidden;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--line-dark);
            border-radius: 50%;
            background: var(--ink);
            color: var(--white);
            opacity: 0;
            box-shadow: var(--shadow);
            transition: opacity var(--ease), visibility var(--ease), transform var(--ease);
        }

        .back-top.is-visible {
            visibility: visible;
            opacity: 1;
        }

        .back-top:hover {
            background: var(--coral);
            transform: translateY(-3px);
        }

        .age-gate {
            position: fixed;
            z-index: 200;
            inset: 0;
            display: none;
            padding: 24px;
            align-items: center;
            justify-content: center;
            background: rgba(17, 17, 15, .94);
        }

        .age-gate.is-visible { display: flex; }

        .age-dialog {
            width: min(100%, 560px);
            padding: 42px;
            border: 1px solid var(--line-dark);
            border-radius: var(--radius-lg);
            background: var(--paper-bright);
            color: var(--text);
            box-shadow: 0 28px 80px rgba(0, 0, 0, .38);
        }

        .age-symbol {
            width: 62px;
            height: 62px;
            display: flex;
            margin-bottom: 24px;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--coral);
            color: var(--white);
            font-size: 22px;
            font-weight: 800;
        }

        .age-dialog h2 {
            margin: 0;
            font-size: 28px;
            font-weight: 800;
        }

        .age-dialog p {
            margin: 15px 0 0;
            color: var(--muted);
        }

        .age-actions {
            display: flex;
            margin-top: 26px;
            flex-wrap: wrap;
            gap: 10px;
        }

        .age-note {
            display: block;
            margin-top: 16px;
            color: var(--muted);
            font-size: 12px;
        }

        .reveal-on-scroll {
            opacity: 0;
            transform: translateY(16px);
            transition: opacity 500ms ease, transform 500ms ease;
        }

        .reveal-on-scroll.is-visible {
            opacity: 1;
            transform: translateY(0);
        }

        @media screen and (max-width: 1023px) {
            :root { --header-height: 126px; }

            .section { padding: 82px 0; }
            .section-title { font-size: 38px; }
            .site-container { width: min(calc(100% - 32px), var(--container)); }

            .brand {
                min-width: 0;
                max-width: 340px;
            }

            .search-wrap { width: 220px; }
            .header-cta { display: none; }

            .hero {
                min-height: 690px;
            }

            .hero h1 { font-size: 54px; }
            .hero-media::after {
                background:
                    linear-gradient(90deg, rgba(17, 17, 15, .97) 0%, rgba(17, 17, 15, .78) 65%, rgba(17, 17, 15, .38) 100%),
                    linear-gradient(0deg, rgba(17, 17, 15, .94) 0%, transparent 50%);
            }

            .solution-workspace { grid-template-columns: 39% 61%; }
            .solution-intro { padding: 42px 36px 28px; }

            .feature-layout { grid-template-columns: 1.15fr .85fr; }
            .feature-main { min-height: 480px; }

            .metric strong { font-size: 44px; }

            .faq-layout {
                grid-template-columns: 1fr;
                gap: 42px;
            }

            .cta-panel { padding: 50px 42px; }
            .cta-grid { gap: 35px; }
            .footer-main { gap: 40px; }
        }

        @media screen and (max-width: 767px) {
            .header-main .site-container { gap: 12px; }

            .brand {
                max-width: none;
                flex: 1;
                font-size: 13px;
            }

            .brand-mark {
                width: 34px;
                height: 34px;
                flex-basis: 34px;
            }

            .search-wrap {
                position: static;
                width: auto;
            }

            .search-field {
                position: absolute;
                z-index: 92;
                top: 62px;
                right: 16px;
                left: 16px;
                display: none;
                width: auto;
                background: #252520;
            }

            .search-field.is-open { display: block; }

            .search-submit {
                position: static;
                width: 44px;
                height: 44px;
                border: 1px solid var(--line-dark);
            }

            .search-suggestions {
                top: 122px;
                right: 16px;
                left: 16px;
            }

            .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }

            .channel-bar.menu-hidden { display: none; }

            .hero {
                min-height: 660px;
                align-items: flex-end;
            }

            .hero .site-container {
                padding-top: 72px;
                padding-bottom: 38px;
            }

            .hero h1 { font-size: 43px; }
            .hero-intro { font-size: 16px; }
            .hero-fact { min-width: 145px; }

            .solution-workspace {
                display: block;
                min-height: 0;
            }

            .solution-menu {
                display: flex;
                overflow-x: auto;
                padding: 18px;
                gap: 8px;
                border-right: 0;
                border-bottom: 1px solid var(--line);
            }

            .solution-tab {
                width: auto;
                min-width: 170px;
                margin: 0;
                flex: 0 0 auto;
            }

            .solution-tab:hover,
            .solution-tab.is-active { transform: none; }

            .solution-preview { padding: 22px; }

            .preview-item {
                grid-template-columns: 110px minmax(0, 1fr);
            }

            .preview-item > .text-link { grid-column: 2; justify-self: start; }

            .feature-layout { grid-template-columns: 1fr; }
            .feature-main { min-height: 470px; }
            .feature-side {
                grid-template-columns: 1fr 1fr;
                grid-template-rows: none;
            }

            .metric-band { grid-template-columns: 1fr 1fr; }
            .metric:nth-child(3) { border-left: 0; }
            .metric:nth-child(n+3) { border-top: 1px solid var(--line-dark); }
            .metric:first-child,
            .metric:nth-child(3) { padding-left: 0; }

            .path-flow {
                grid-template-columns: 1fr;
            }

            .path-arrow { transform: rotate(90deg); text-align: center; }

            .quote-track { grid-auto-columns: 82%; }

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

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

            .footer-main { grid-template-columns: 1fr; }
            .footer-links { justify-content: flex-start; }
        }

        @media screen and (max-width: 520px) {
            .site-container { width: min(calc(100% - 24px), var(--container)); }
            .section { padding: 60px 0; }
            .section-title { font-size: 31px; }
            .section-lead { font-size: 16px; }

            .brand-text {
                max-width: 205px;
                line-height: 1.25;
            }

            .hero {
                min-height: 650px;
            }

            .hero-media img { object-position: 61% center; }

            .hero-media::after {
                background: linear-gradient(0deg, rgba(17, 17, 15, .98) 0%, rgba(17, 17, 15, .78) 72%, rgba(17, 17, 15, .48) 100%);
            }

            .hero h1 {
                font-size: 37px;
                overflow-wrap: anywhere;
            }

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

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

            .hero-facts {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px 0;
            }

            .hero-fact {
                min-width: 0;
                padding: 0 14px;
            }

            .hero-fact:nth-child(3) {
                padding-left: 0;
                border-left: 0;
            }

            .hero-status { align-items: flex-start; flex-direction: column; }

            .chapter-number { font-size: 86px; }

            .pain-heading { margin-top: 24px; }
            .issue-item { grid-template-columns: 42px minmax(0, 1fr); }

            .solution-intro { padding: 32px 22px 24px; }
            .solution-preview { padding: 18px; }

            .preview-item {
                grid-template-columns: 1fr;
            }

            .preview-image { aspect-ratio: 16 / 9; }
            .preview-item > .text-link { grid-column: 1; }

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

            .feature-main { min-height: 420px; }
            .feature-side { grid-template-columns: 1fr; }
            .feature-small { min-height: 280px; }
            .feature-overlay { padding: 25px; }
            .feature-overlay h3 { font-size: 24px; }

            .results-section { padding-bottom: 0; }
            .metric { padding: 26px 15px; }
            .metric strong { font-size: 37px; }
            .path-panel { padding: 24px; }

            .testimonials-section { padding-top: 135px; }
            .quote-track { grid-auto-columns: 91%; }
            .quote-card { padding: 26px; }
            .quote-card blockquote { font-size: 18px; }

            .news-item {
                grid-template-columns: 1fr auto;
                gap: 8px 15px;
            }

            .news-date { grid-column: 1; }
            .news-item a { grid-column: 1; }
            .news-arrow { grid-column: 2; grid-row: 1 / 3; }

            .accordion-title { padding-right: 40px; }
            .accordion-content { padding-right: 0; }

            .cta-section { padding-bottom: 60px; }
            .cta-panel { padding: 40px 24px; border-radius: var(--radius-md); }
            .cta-panel h2 { font-size: 31px; }
            .subscribe-row { flex-direction: column; }
            .subscribe-row .button { width: 100%; }

            .site-footer { padding-top: 58px; }
            .footer-links {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }

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

            .age-dialog { padding: 30px 24px; }
            .age-actions { display: grid; }
            .age-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;
            }
            .reveal-on-scroll {
                opacity: 1;
                transform: none;
            }
        }

/* roulang page: category1 */
:root {
  --ink: #11110f;
  --ink-soft: #1c1c19;
  --paper: #f3f0e9;
  --paper-bright: #fbfaf6;
  --coral: #ff5a46;
  --coral-hover: #ff705e;
  --lime: #c8f04a;
  --text: #1c1c19;
  --muted: #68675f;
  --muted-dark: #c7c4ba;
  --white: #fffdf8;
  --danger: #d63f32;
  --success: #477100;
  --line: rgba(28, 28, 25, .12);
  --line-strong: rgba(28, 28, 25, .24);
  --line-dark: rgba(255, 255, 255, .16);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-xl: 28px;
  --shadow: 0 14px 40px rgba(22, 22, 18, .08);
  --shadow-hover: 0 20px 46px rgba(22, 22, 18, .13);
  --container: 1240px;
  --header-height: 126px;
  --ease: 220ms ease;
}
*, *::before, *::after { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  scroll-padding-top: 156px;
}
body {
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
}
body.age-locked { overflow: hidden; }
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--ease), background-color var(--ease), border-color var(--ease), transform var(--ease), box-shadow var(--ease);
}
button, input, select {
  margin: 0;
  font: inherit;
  letter-spacing: 0;
}
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .58; }
img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}
[hidden] { display: none !important; }
.site-container {
  width: min(calc(100% - 40px), var(--container));
  margin-inline: auto;
}
.skip-link {
  position: fixed;
  z-index: 999;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  background: var(--lime);
  color: var(--ink);
  font-weight: 800;
  transform: translateY(-150%);
}
.skip-link:focus { transform: translateY(0); }
:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}
.button {
  display: inline-flex;
  min-height: 48px;
  margin: 0;
  padding: 12px 24px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: var(--coral);
  color: var(--white);
  font-size: 15px;
  font-weight: 800;
  line-height: 1.3;
  transition: transform var(--ease), box-shadow var(--ease), background-color var(--ease), border-color var(--ease);
}
.button:hover, .button:focus {
  background: var(--coral-hover);
  color: var(--white);
  box-shadow: 0 10px 24px rgba(255, 90, 70, .22);
  transform: translateY(-2px);
}
.button:active {
  box-shadow: none;
  transform: translateY(0);
}
.button.hollow {
  border-color: rgba(255, 255, 255, .42);
  background: transparent;
  color: var(--white);
}
.button.hollow:hover, .button.hollow:focus {
  border-color: var(--white);
  background: var(--white);
  color: var(--ink);
}
.button.dark {
  background: var(--ink);
  color: var(--white);
}
.button.dark:hover, .button.dark:focus { background: #2b2b26; }
.button.light {
  border-color: var(--line-strong);
  background: transparent;
  color: var(--text);
}
.button.light:hover, .button.light:focus {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--white);
}
.button.small {
  min-height: 44px;
  padding: 10px 20px;
  font-size: 14px;
}
.icon-button {
  display: inline-grid;
  width: 46px;
  height: 46px;
  padding: 0;
  place-items: center;
  border: 1px solid var(--line-dark);
  border-radius: 50%;
  background: transparent;
  color: var(--white);
}
.icon-button:hover, .icon-button:focus {
  border-color: var(--lime);
  background: rgba(200, 240, 74, .1);
}
.icon {
  display: inline-block;
  width: 19px;
  height: 19px;
  position: relative;
}
.icon-search::before {
  position: absolute;
  width: 12px;
  height: 12px;
  top: 1px;
  left: 1px;
  border: 2px solid currentColor;
  border-radius: 50%;
  content: "";
}
.icon-search::after {
  position: absolute;
  width: 8px;
  height: 2px;
  right: 0;
  bottom: 3px;
  background: currentColor;
  content: "";
  transform: rotate(45deg);
  transform-origin: center;
}
.icon-menu::before, .icon-menu::after, .icon-menu span {
  position: absolute;
  width: 18px;
  height: 2px;
  left: 0;
  background: currentColor;
  content: "";
}
.icon-menu::before { top: 3px; }
.icon-menu span { top: 9px; }
.icon-menu::after { top: 15px; }
.badge {
  display: inline-flex;
  min-width: 0;
  padding: 6px 10px;
  align-items: center;
  gap: 7px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, .78);
  color: var(--text);
  font-size: 12px;
  font-weight: 800;
  line-height: 1.2;
}
.badge.status::before {
  width: 7px;
  height: 7px;
  flex: 0 0 7px;
  border-radius: 50%;
  background: var(--lime);
  content: "";
}
.badge.coral {
  border-color: transparent;
  background: var(--coral);
  color: var(--white);
}
.badge.dark {
  border-color: var(--line-dark);
  background: rgba(17, 17, 15, .76);
  color: var(--white);
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid currentColor;
  color: var(--text);
  font-weight: 800;
  line-height: 1.5;
}
.text-link::after {
  content: "→";
  transition: transform var(--ease);
}
.text-link:hover::after { transform: translateX(4px); }

/* 双层导航 */
.site-header {
  position: sticky;
  z-index: 80;
  top: 0;
  background: var(--ink);
  color: var(--white);
}
.header-main {
  min-height: 74px;
  border-bottom: 1px solid var(--line-dark);
}
.header-main .site-container {
  min-height: 74px;
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand {
  display: inline-flex;
  min-width: 280px;
  align-items: center;
  gap: 12px;
  color: var(--white);
  font-weight: 800;
  line-height: 1.25;
}
.brand-mark {
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  position: relative;
  border: 2px solid var(--coral);
  border-radius: 50%;
}
.brand-mark::before {
  position: absolute;
  width: 8px;
  height: 8px;
  top: 4px;
  right: 3px;
  border-radius: 50%;
  background: var(--lime);
  content: "";
}
.brand-mark::after {
  position: absolute;
  width: 15px;
  height: 2px;
  left: 6px;
  bottom: 7px;
  background: var(--coral);
  content: "";
  transform: rotate(-25deg);
}
.brand-text {
  max-width: 310px;
  font-size: 17px;
}
.header-actions {
  display: flex;
  margin-left: auto;
  align-items: center;
  gap: 12px;
}
.site-search {
  width: min(34vw, 370px);
  position: relative;
}
.site-search label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}
.site-search input {
  width: 100%;
  height: 46px;
  padding: 0 46px 0 18px;
  border: 1px solid var(--line-dark);
  border-radius: 999px;
  background: rgba(255, 255, 255, .07);
  color: var(--white);
  box-shadow: none;
}
.site-search input::placeholder { color: #aaa89f; }
.site-search input:focus {
  border-color: var(--lime);
  background: rgba(255, 255, 255, .11);
  box-shadow: none;
}
.search-submit {
  position: absolute;
  width: 42px;
  height: 42px;
  top: 2px;
  right: 3px;
  border: 0;
  background: transparent;
  color: var(--white);
}
.search-panel {
  position: absolute;
  z-index: 95;
  width: 100%;
  top: calc(100% + 10px);
  left: 0;
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--paper-bright);
  color: var(--text);
  box-shadow: var(--shadow-hover);
}
.search-panel strong {
  display: block;
  margin-bottom: 9px;
  font-size: 13px;
}
.search-suggestions {
  display: grid;
  gap: 7px;
}
.search-suggestion {
  display: flex;
  min-height: 42px;
  padding: 8px 10px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
}
.search-suggestion:hover, .search-suggestion:focus {
  background: var(--paper);
}
.search-suggestion small { color: var(--muted); }
.mobile-tools { display: none; }
.channel-bar {
  min-height: 52px;
  background: var(--ink);
}
.channel-scroll {
  display: flex;
  min-height: 52px;
  align-items: center;
  gap: 10px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.channel-scroll::-webkit-scrollbar { display: none; }
.channel-link {
  display: inline-flex;
  min-height: 36px;
  padding: 7px 16px;
  flex: 0 0 auto;
  align-items: center;
  border: 1px solid var(--line-dark);
  border-radius: 999px;
  color: var(--muted-dark);
  font-size: 14px;
  font-weight: 700;
}
.channel-link:hover, .channel-link:focus {
  border-color: var(--lime);
  color: var(--white);
}
.channel-link.active {
  border-color: var(--coral);
  background: var(--coral);
  color: var(--white);
}
.mobile-drawer {
  display: none;
  padding: 14px 20px 20px;
  border-top: 1px solid var(--line-dark);
  background: var(--ink);
}
.mobile-drawer.is-open { display: block; }
.mobile-drawer a {
  display: flex;
  min-height: 46px;
  align-items: center;
  border-bottom: 1px solid var(--line-dark);
  font-weight: 700;
}

/* 分类 Hero */
.category-hero {
  min-height: 405px;
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
}
.category-hero::after {
  position: absolute;
  width: 320px;
  height: 2px;
  right: 8%;
  bottom: 48px;
  background: linear-gradient(90deg, transparent, var(--coral));
  content: "";
}
.hero-inner {
  min-height: 405px;
  padding: 58px 0 68px;
  align-items: center;
}
.breadcrumbs {
  margin: 0 0 24px;
  color: var(--muted-dark);
}
.breadcrumbs li, .breadcrumbs a {
  color: var(--muted-dark);
  font-size: 13px;
  text-transform: none;
}
.breadcrumbs a:hover { color: var(--lime); }
.category-hero h1 {
  max-width: 780px;
  margin: 0;
  color: var(--white);
  font-size: 58px;
  font-weight: 800;
  line-height: 1.09;
  letter-spacing: 0;
}
.category-hero h1 span { color: var(--coral); }
.hero-copy {
  max-width: 730px;
  margin: 22px 0 0;
  color: var(--muted-dark);
  font-size: 17px;
  line-height: 1.8;
}
.hero-meta {
  display: flex;
  margin-top: 26px;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}
.hero-meta .badge {
  border-color: var(--line-dark);
  background: rgba(255, 255, 255, .06);
  color: var(--white);
}
.hero-preview {
  margin-left: auto;
  max-width: 410px;
  overflow: hidden;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-lg);
  background: #24241f;
  box-shadow: 0 22px 52px rgba(0, 0, 0, .28);
}
.hero-preview-media {
  height: 172px;
  position: relative;
  overflow: hidden;
}
.hero-preview-media img {
  height: 100%;
  object-fit: cover;
  opacity: .84;
}
.hero-preview-media::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(17, 17, 15, .82), transparent 60%);
  content: "";
}
.hero-preview-tag {
  position: absolute;
  z-index: 2;
  left: 18px;
  bottom: 15px;
}
.hero-preview-body { padding: 20px; }
.hero-preview-body h2 {
  margin: 0 0 8px;
  color: var(--white);
  font-size: 21px;
  font-weight: 800;
  line-height: 1.35;
}
.hero-preview-body p {
  margin: 0;
  color: var(--muted-dark);
  font-size: 14px;
}

/* 子频道及筛选 */
.browse-controls {
  position: sticky;
  z-index: 55;
  top: var(--header-height);
  border-bottom: 1px solid var(--line);
  background: rgba(243, 240, 233, .97);
  backdrop-filter: blur(10px);
}
.subchannel-row {
  display: flex;
  min-height: 66px;
  align-items: center;
  gap: 10px;
  overflow-x: auto;
  scrollbar-width: none;
}
.subchannel-row::-webkit-scrollbar { display: none; }
.subchannel-pill {
  display: inline-flex;
  min-height: 38px;
  padding: 8px 14px;
  flex: 0 0 auto;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper-bright);
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}
.subchannel-pill small {
  min-width: 20px;
  color: inherit;
  text-align: center;
}
.subchannel-pill:hover, .subchannel-pill:focus {
  border-color: var(--coral);
  color: var(--text);
}
.subchannel-pill.is-active {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--white);
}
.subchannel-pill.has-update::after {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lime);
  content: "";
}
.filter-band {
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
  background: var(--paper-bright);
}
.filter-top {
  display: flex;
  align-items: flex-end;
  gap: 14px;
}
.filter-field {
  min-width: 170px;
  flex: 1 1 170px;
}
.filter-field label {
  display: block;
  margin-bottom: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}
.filter-field select, .filter-field input {
  width: 100%;
  height: 46px;
  margin: 0;
  padding: 0 38px 0 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background-color: var(--paper-bright);
  color: var(--text);
  box-shadow: none;
}
.filter-field input { padding-right: 14px; }
.filter-field select:focus, .filter-field input:focus {
  border-color: var(--coral);
  box-shadow: 0 0 0 2px rgba(255, 90, 70, .12);
}
.filter-action { flex: 0 0 auto; }
.mobile-filter-button { display: none; }
.selected-filters {
  display: flex;
  min-height: 34px;
  margin-top: 18px;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.selected-label {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}
.filter-chip {
  display: inline-flex;
  min-height: 32px;
  padding: 5px 10px;
  align-items: center;
  gap: 7px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  font-size: 13px;
  font-weight: 700;
}
.filter-chip button {
  width: 22px;
  height: 22px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--muted);
  line-height: 1;
}
.filter-chip button:hover { background: var(--ink); color: var(--white); }
.clear-filter {
  margin-left: auto;
  border: 0;
  border-bottom: 1px solid currentColor;
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}
.result-summary {
  display: flex;
  padding-top: 20px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
  font-size: 14px;
}
.result-summary strong { color: var(--text); }

/* 内容区 */
.section {
  position: relative;
  padding: 96px 0;
}
.section-kicker {
  display: inline-flex;
  margin-bottom: 14px;
  align-items: center;
  gap: 9px;
  color: var(--coral);
  font-size: 13px;
  font-weight: 800;
}
.section-kicker::before {
  width: 28px;
  height: 2px;
  background: currentColor;
  content: "";
}
.section-title {
  max-width: 760px;
  margin: 0;
  color: var(--text);
  font-size: 42px;
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: 0;
}
.section-lead {
  max-width: 760px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 17px;
}
.featured-card {
  margin-top: 42px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--paper-bright);
  box-shadow: var(--shadow);
  transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
}
.featured-card:hover {
  border-color: rgba(255, 90, 70, .55);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.featured-media {
  min-height: 100%;
  position: relative;
  overflow: hidden;
  background: #d7d2c7;
}
.featured-media img {
  height: 100%;
  min-height: 390px;
  object-fit: cover;
  transition: transform var(--ease);
}
.featured-card:hover .featured-media img { transform: scale(1.025); }
.featured-media-overlay {
  position: absolute;
  inset: auto 0 0;
  padding: 54px 22px 20px;
  background: linear-gradient(transparent, rgba(17, 17, 15, .78));
}
.featured-content {
  display: flex;
  min-height: 390px;
  padding: 42px;
  flex-direction: column;
  justify-content: center;
}
.featured-content h2 {
  margin: 18px 0 14px;
  font-size: 32px;
  font-weight: 800;
  line-height: 1.25;
}
.featured-content p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}
.meta-line {
  display: flex;
  margin: 20px 0 26px;
  flex-wrap: wrap;
  gap: 8px 18px;
  color: var(--muted);
  font-size: 13px;
}
.meta-line span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.meta-line span::before {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--coral);
  content: "";
}
.content-section {
  padding-top: 20px;
  padding-bottom: 96px;
}
.content-heading {
  display: flex;
  margin-bottom: 28px;
  align-items: end;
  justify-content: space-between;
  gap: 22px;
}
.content-heading h2 {
  margin: 0;
  font-size: 34px;
  font-weight: 800;
}
.content-heading p {
  max-width: 510px;
  margin: 0;
  color: var(--muted);
}
.content-list {
  display: grid;
  gap: 18px;
}
.content-item {
  display: grid;
  min-height: 220px;
  grid-template-columns: 300px minmax(0, 1fr) auto;
  align-items: center;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--paper-bright);
  transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
}
.content-item:hover {
  border-color: rgba(255, 90, 70, .55);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}
.item-media {
  height: 100%;
  min-height: 220px;
  overflow: hidden;
  background: #d4d0c7;
}
.item-media img {
  height: 100%;
  object-fit: cover;
  transition: transform var(--ease);
}
.content-item:hover .item-media img { transform: scale(1.025); }
.item-body {
  min-width: 0;
  padding: 27px 30px;
}
.item-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.item-body h3 {
  display: -webkit-box;
  margin: 13px 0 8px;
  overflow: hidden;
  color: var(--text);
  font-size: 23px;
  font-weight: 800;
  line-height: 1.35;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}
.item-body p {
  display: -webkit-box;
  margin: 0;
  overflow: hidden;
  color: var(--muted);
  line-height: 1.75;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}
.item-action {
  padding: 24px 28px 24px 8px;
  white-space: nowrap;
}
.spotlight-row {
  display: grid;
  margin: 10px 0;
  grid-template-columns: 1.1fr .9fr;
  gap: 18px;
}
.spotlight-card {
  min-height: 310px;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--ink);
  color: var(--white);
}
.spotlight-card img {
  height: 100%;
  position: absolute;
  inset: 0;
  object-fit: cover;
  opacity: .44;
  transition: transform var(--ease), opacity var(--ease);
}
.spotlight-card:hover img {
  opacity: .52;
  transform: scale(1.025);
}
.spotlight-card::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(17, 17, 15, .95), rgba(17, 17, 15, .28));
  content: "";
}
.spotlight-copy {
  width: min(72%, 560px);
  position: relative;
  z-index: 2;
  padding: 38px;
}
.spotlight-copy h3 {
  margin: 16px 0 12px;
  color: var(--white);
  font-size: 29px;
  font-weight: 800;
  line-height: 1.3;
}
.spotlight-copy p {
  margin: 0 0 22px;
  color: var(--muted-dark);
}
.spotlight-note {
  display: flex;
  padding: 32px;
  flex-direction: column;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: #e8e4da;
}
.spotlight-note strong {
  font-size: 50px;
  line-height: 1;
}
.spotlight-note h3 {
  margin: 18px 0 8px;
  font-size: 22px;
  font-weight: 800;
}
.spotlight-note p {
  margin: 0;
  color: var(--muted);
}
.empty-state {
  padding: 52px 24px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-md);
  background: var(--paper-bright);
  text-align: center;
}
.empty-state h3 {
  margin: 0 0 8px;
  font-size: 24px;
}
.empty-state p {
  max-width: 560px;
  margin: 0 auto 22px;
  color: var(--muted);
}
.load-wrap {
  display: flex;
  margin-top: 34px;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.load-status {
  min-height: 25px;
  color: var(--muted);
  font-size: 13px;
}
.pagination {
  display: flex;
  margin: 38px 0 0;
  justify-content: center;
  gap: 6px;
}
.pagination li { margin: 0; }
.pagination a, .pagination button, .pagination .current {
  display: grid;
  min-width: 44px;
  min-height: 44px;
  padding: 8px 12px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--paper-bright);
  color: var(--text);
  font-weight: 800;
}
.pagination a:hover, .pagination a:focus {
  border-color: var(--coral);
  background: var(--coral);
  color: var(--white);
}
.pagination .current {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--white);
}

/* FAQ */
.faq-section {
  border-top: 1px solid var(--line);
  background: var(--paper-bright);
}
.faq-layout {
  display: grid;
  grid-template-columns: 4fr 7fr;
  gap: 80px;
}
.faq-intro {
  position: sticky;
  top: 210px;
  align-self: start;
}
.faq-intro h2 {
  margin: 0;
  font-size: 40px;
  font-weight: 800;
  line-height: 1.18;
}
.faq-intro p {
  margin: 18px 0 0;
  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 {
  min-height: 68px;
  padding: 21px 54px 21px 0;
  border: 0;
  color: var(--text);
  font-size: 17px;
  font-weight: 800;
  line-height: 1.5;
}
.accordion-title:hover, .accordion-title:focus {
  background: transparent;
  color: var(--coral);
}
.accordion-title::before {
  width: 26px;
  height: 26px;
  top: 50%;
  right: 0;
  margin: -13px 0 0;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  content: "+";
  font-size: 20px;
  line-height: 1;
}
.is-active > .accordion-title::before { content: "−"; }
.accordion-content {
  padding: 0 46px 24px 0;
  border: 0;
  background: transparent;
  color: var(--muted);
}
.accordion-content p { margin: 0; }

/* CTA */
.category-cta {
  padding: 0 0 96px;
  background: var(--paper-bright);
}
.cta-panel {
  display: grid;
  padding: 46px 50px;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 40px;
  border-radius: var(--radius-lg);
  background: var(--ink);
  color: var(--white);
}
.cta-panel h2 {
  margin: 0;
  color: var(--white);
  font-size: 34px;
  font-weight: 800;
  line-height: 1.2;
}
.cta-panel p {
  max-width: 700px;
  margin: 12px 0 0;
  color: var(--muted-dark);
}
.cta-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* 页脚 */
.site-footer {
  padding: 72px 0 24px;
  border-top: 1px solid var(--line-dark);
  background: var(--ink);
  color: var(--white);
}
.footer-main {
  display: grid;
  padding-bottom: 56px;
  grid-template-columns: 5fr 7fr;
  gap: 70px;
}
.footer-brand .brand { margin-bottom: 20px; }
.footer-brand p {
  max-width: 520px;
  margin: 0;
  color: var(--muted-dark);
}
.footer-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 34px;
}
.footer-group h3 {
  margin: 0 0 17px;
  color: var(--white);
  font-size: 15px;
  font-weight: 800;
}
.footer-group a {
  display: block;
  width: fit-content;
  margin: 9px 0;
  color: var(--muted-dark);
}
.footer-group a:hover, .footer-group a:focus { color: var(--lime); }
.footer-bottom {
  display: flex;
  padding-top: 22px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid var(--line-dark);
  color: #9e9c94;
  font-size: 13px;
}
.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-legal a:hover { color: var(--white); }

/* 年龄确认 */
.age-gate {
  display: none;
  position: fixed;
  z-index: 300;
  inset: 0;
  padding: 20px;
  align-items: center;
  justify-content: center;
  background: rgba(17, 17, 15, .92);
  backdrop-filter: blur(8px);
}
.age-gate.is-visible { display: flex; }
.age-dialog {
  width: min(100%, 560px);
  padding: 38px;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-lg);
  background: var(--paper-bright);
  box-shadow: 0 30px 80px rgba(0, 0, 0, .36);
}
.age-symbol {
  display: grid;
  width: 54px;
  height: 54px;
  margin-bottom: 22px;
  place-items: center;
  border: 2px solid var(--coral);
  border-radius: 50%;
  color: var(--coral);
  font-size: 18px;
  font-weight: 800;
}
.age-dialog h2 {
  margin: 0 0 12px;
  font-size: 30px;
  font-weight: 800;
}
.age-dialog p {
  margin: 0 0 14px;
  color: var(--muted);
}
.age-check {
  display: flex;
  margin: 20px 0;
  align-items: flex-start;
  gap: 10px;
  font-weight: 700;
}
.age-check input {
  width: 20px;
  height: 20px;
  margin-top: 4px;
  accent-color: var(--coral);
}
.age-actions {
  display: flex;
  gap: 10px;
}
.age-error {
  min-height: 24px;
  margin: 8px 0 0;
  color: var(--danger);
  font-size: 13px;
  font-weight: 700;
}
.reveal {
  padding: 28px;
  border: 0;
  border-radius: var(--radius-md);
  background: var(--paper-bright);
}
.reveal h2 {
  margin: 0 0 20px;
  font-size: 26px;
  font-weight: 800;
}
.reveal .filter-field { margin-bottom: 14px; }
.close-button {
  color: var(--text);
  font-size: 30px;
}
.back-to-top {
  display: grid;
  width: 46px;
  height: 46px;
  position: fixed;
  z-index: 65;
  right: 20px;
  bottom: 20px;
  place-items: center;
  border: 1px solid var(--line-dark);
  border-radius: 50%;
  background: var(--ink);
  color: var(--white);
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity var(--ease), transform var(--ease), background var(--ease);
}
.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.back-to-top:hover, .back-to-top:focus {
  background: var(--coral);
  color: var(--white);
}
.no-results { display: none; }

@media (max-width: 1023px) {
  :root { --header-height: 122px; }
  .site-search { width: min(31vw, 280px); }
  .brand { min-width: 240px; }
  .brand-text { font-size: 15px; }
  .header-cta { display: none; }
  .category-hero h1 { font-size: 46px; }
  .hero-preview { max-width: none; }
  .section { padding: 76px 0; }
  .featured-content { padding: 32px; }
  .content-item { grid-template-columns: 240px minmax(0, 1fr); }
  .item-action {
    padding: 0 28px 25px;
    grid-column: 2;
  }
  .faq-layout {
    grid-template-columns: 1fr;
    gap: 38px;
  }
  .faq-intro { position: static; }
  .footer-main { gap: 40px; }
}
@media (max-width: 767px) {
  :root { --header-height: 118px; }
  html { scroll-padding-top: 138px; }
  .site-container { width: min(calc(100% - 28px), var(--container)); }
  .header-main, .header-main .site-container { min-height: 66px; }
  .header-main .site-container { gap: 10px; }
  .brand {
    min-width: 0;
    flex: 1 1 auto;
    gap: 8px;
  }
  .brand-mark {
    width: 27px;
    height: 27px;
    flex-basis: 27px;
  }
  .brand-text {
    max-width: 190px;
    font-size: 13px;
    line-height: 1.25;
  }
  .site-search, .desktop-only { display: none; }
  .mobile-tools {
    display: flex;
    align-items: center;
    gap: 7px;
  }
  .icon-button {
    width: 42px;
    height: 42px;
  }
  .channel-bar, .channel-scroll { min-height: 52px; }
  .category-hero, .hero-inner { min-height: 0; }
  .hero-inner { padding: 42px 0 52px; }
  .category-hero h1 {
    font-size: 38px;
    line-height: 1.12;
  }
  .hero-copy { font-size: 16px; }
  .hero-preview { margin-top: 34px; }
  .hero-preview-media { height: 150px; }
  .browse-controls { top: var(--header-height); }
  .subchannel-row { min-height: 60px; }
  .desktop-filters { display: none; }
  .mobile-filter-button {
    display: inline-flex;
    width: 100%;
  }
  .selected-filters { margin-top: 14px; }
  .clear-filter { margin-left: 0; }
  .result-summary {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }
  .section { padding: 60px 0; }
  .section-title { font-size: 31px; }
  .featured-card { margin-top: 30px; }
  .featured-media img { min-height: 235px; }
  .featured-content {
    min-height: 0;
    padding: 28px 24px;
  }
  .featured-content h2 { font-size: 26px; }
  .content-section {
    padding-top: 12px;
    padding-bottom: 64px;
  }
  .content-heading {
    align-items: flex-start;
    flex-direction: column;
  }
  .content-heading h2 { font-size: 29px; }
  .content-item {
    display: block;
    min-height: 0;
  }
  .item-media { min-height: 0; aspect-ratio: 16 / 9; }
  .item-body { padding: 22px 20px 14px; }
  .item-body h3 { font-size: 21px; }
  .item-body p { -webkit-line-clamp: 2; }
  .item-action { padding: 0 20px 22px; }
  .item-action .button { width: 100%; }
  .spotlight-row { grid-template-columns: 1fr; }
  .spotlight-card { min-height: 330px; }
  .spotlight-copy {
    width: 100%;
    padding: 28px 22px;
  }
  .spotlight-copy h3 { font-size: 25px; }
  .spotlight-note { padding: 26px 22px; }
  .pagination li:not(.pagination-previous):not(.pagination-next):not(.current) { display: none; }
  .faq-intro h2 { font-size: 32px; }
  .accordion-title {
    padding-right: 42px;
    font-size: 16px;
  }
  .category-cta { padding-bottom: 64px; }
  .cta-panel {
    padding: 32px 24px;
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .cta-panel h2 { font-size: 29px; }
  .cta-actions {
    align-items: stretch;
    flex-direction: column;
  }
  .site-footer { padding-top: 56px; }
  .footer-main {
    padding-bottom: 38px;
    grid-template-columns: 1fr;
    gap: 38px;
  }
  .footer-links { gap: 24px; }
  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }
  .age-dialog { padding: 28px 22px; }
  .age-dialog h2 { font-size: 26px; }
  .age-actions { flex-direction: column; }
  .age-actions .button { width: 100%; }
}
@media (max-width: 520px) {
  .brand-text { max-width: 155px; font-size: 12px; }
  .mobile-tools .icon-button:first-child { display: none; }
  .category-hero h1 { font-size: 36px; overflow-wrap: anywhere; }
  .hero-meta { align-items: flex-start; flex-direction: column; }
  .section-title { font-size: 29px; }
  .featured-content h2 { font-size: 24px; }
  .footer-links { grid-template-columns: 1fr; }
  .footer-legal { gap: 12px 18px; }
}
@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;
  }
  .featured-card:hover, .content-item:hover, .button:hover { transform: none; }
}