/* roulang page: index */
:root {
            --bg: #0B0F18;
            --bg-alt: #101623;
            --surface: #141C2B;
            --surface-hover: #1A2436;
            --border: rgba(255, 255, 255, 0.08);
            --border-strong: rgba(255, 255, 255, 0.16);
            --text-hi: #F1F0EC;
            --text-body: #B7BFCF;
            --text-low: #7D8899;
            --accent: #D6B36C;
            --accent-strong: #E7C684;
            --accent-dim: rgba(214, 179, 108, 0.14);
            --info: #80A9C6;
            --danger: #E0777D;
            --radius-card: 14px;
            --radius-btn: 6px;
            --radius-pill: 999px;
            --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 10px 30px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(214, 179, 108, 0.18);
            --shadow-float: 0 20px 50px rgba(0, 0, 0, 0.5);
            --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --section-space: clamp(3.5rem, 7vw, 6rem);
            --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
            --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
            --num: "Archivo", "Helvetica Neue", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: var(--sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-body);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--serif);
            color: var(--text-hi);
            line-height: 1.35;
            margin-top: 0;
            margin-bottom: .5rem;
            letter-spacing: .02em;
        }
        p {
            margin-top: 0;
            margin-bottom: 1.5rem;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color .3s var(--ease);
        }
        a:hover {
            color: var(--accent-strong);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
        }
        :focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .container {
            max-width: 1280px;
        }
        .section {
            padding-top: var(--section-space);
            padding-bottom: var(--section-space);
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .kicker {
            font-family: var(--num);
            font-size: 12px;
            font-weight: 700;
            letter-spacing: .14em;
            text-transform: uppercase;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }
        .kicker::before {
            content: "";
            width: 24px;
            height: 1px;
            background: var(--accent);
            display: inline-block;
        }
        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 36px;
        }
        .section-title {
            font-size: clamp(1.4rem, 2.4vw, 2rem);
            font-weight: 700;
            margin-bottom: 0;
        }
        .section-link {
            font-size: 14px;
            color: var(--text-low);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color .3s var(--ease), gap .3s var(--ease);
            white-space: nowrap;
        }
        .section-link i {
            font-size: 12px;
        }
        .section-link:hover {
            color: var(--accent);
            gap: 10px;
        }

        /* ===== Buttons ===== */
        .btn {
            font-size: 14px;
            font-weight: 700;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            transition: all .3s var(--ease);
            letter-spacing: .02em;
        }
        .btn-primary,
        .btn-gold {
            background: var(--accent);
            border: 1px solid var(--accent);
            color: #0B0F18;
        }
        .btn-primary:hover,
        .btn-primary:focus,
        .btn-gold:hover,
        .btn-gold:focus {
            background: var(--accent-strong);
            border-color: var(--accent-strong);
            color: #0B0F18;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(214, 179, 108, 0.2);
        }
        .btn-primary:active,
        .btn-gold:active {
            transform: translateY(1px);
            box-shadow: none;
        }
        .btn-outline-gold,
        .btn-outline-light {
            background: transparent;
            border: 1px solid var(--accent);
            color: var(--accent);
        }
        .btn-outline-gold:hover,
        .btn-outline-light:hover {
            background: var(--accent-dim);
            border-color: var(--accent-strong);
            color: var(--accent-strong);
            transform: translateY(-1px);
        }
        .btn-lg {
            padding: 14px 36px;
            font-size: 15px;
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(11, 15, 24, 0.9);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            transition: background .35s var(--ease), box-shadow .35s var(--ease);
        }
        .site-header.scrolled {
            background: rgba(11, 15, 24, 0.96);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
        }
        .nav-inner {
            display: flex;
            flex-direction: column;
            transition: flex-direction .35s var(--ease);
        }
        .nav-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 56px;
            gap: 16px;
            min-width: 0;
            transition: height .35s var(--ease);
        }
        .nav-channel-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 48px;
            gap: 16px;
            border-top: 1px solid var(--border);
            transition: height .35s var(--ease), opacity .3s var(--ease), border-color .3s var(--ease);
        }
        .site-header.scrolled .nav-brand-row {
            height: 64px;
        }
        .site-header.scrolled .nav-channel-row {
            height: 0;
            opacity: 0;
            overflow: hidden;
            border-top-color: transparent;
            pointer-events: none;
        }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-family: var(--serif);
            font-size: 22px;
            font-weight: 700;
            color: var(--text-hi);
            letter-spacing: .04em;
            white-space: nowrap;
            transition: color .3s var(--ease), font-size .35s var(--ease);
        }
        .brand-logo .fa-star {
            color: var(--accent);
            font-size: 18px;
        }
        .brand-logo:hover {
            color: var(--accent-strong);
        }
        .site-header.scrolled .brand-logo {
            font-size: 19px;
        }
        .nav-tools {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .nav-tools a,
        .nav-tools button {
            color: var(--text-low);
            background: none;
            border: none;
            font-size: 15px;
            padding: 6px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            cursor: pointer;
            transition: color .3s var(--ease);
        }
        .nav-tools a:hover,
        .nav-tools button:hover {
            color: var(--accent);
        }
        .nav-tools .nav-phone {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-body);
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            padding: 5px 14px;
        }
        .nav-tools .nav-phone:hover {
            border-color: var(--accent);
            color: var(--accent);
        }
        .channel-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: nowrap;
            min-width: 0;
        }
        .channel-nav li a {
            display: inline-block;
            padding: 10px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            position: relative;
            white-space: nowrap;
            transition: color .3s var(--ease);
        }
        .channel-nav li a::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 0;
            height: 2px;
            background: var(--accent);
            transform: scaleX(0);
            transform-origin: left center;
            transition: transform .35s var(--ease);
        }
        .channel-nav li a:hover {
            color: var(--text-hi);
        }
        .channel-nav li a:hover::after {
            transform: scaleX(1);
        }
        .channel-nav li a.active {
            color: var(--accent);
        }
        .channel-nav li a.active::after {
            transform: scaleX(1);
        }
        .hot-pills {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .hot-pills li a {
            font-size: 12px;
            color: var(--text-low);
            background: var(--accent-dim);
            border-radius: var(--radius-pill);
            padding: 4px 12px;
            white-space: nowrap;
            transition: background .3s var(--ease), color .3s var(--ease);
        }
        .hot-pills li a:hover {
            background: var(--accent);
            color: #0B0F18;
        }
        .nav-toggle {
            display: none;
            font-size: 20px;
            color: var(--text-hi);
            background: none;
            border: none;
            padding: 6px;
            cursor: pointer;
        }

        /* Mobile Drawer */
        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -300px;
            width: 280px;
            height: 100vh;
            background: var(--bg);
            border-left: 1px solid var(--border);
            z-index: 1090;
            padding: 24px 20px;
            transition: right .4s var(--ease);
            overflow-y: auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .mobile-drawer.open {
            right: 0;
            box-shadow: var(--shadow-float);
        }
        .mobile-drawer-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 16px;
        }
        .mobile-drawer-close {
            background: none;
            border: none;
            color: var(--text-hi);
            font-size: 20px;
            cursor: pointer;
        }
        .mobile-drawer a.drawer-link {
            display: block;
            padding: 12px 8px;
            font-size: 16px;
            color: var(--text-body);
            border-bottom: 1px solid var(--border);
            border-radius: 6px;
            transition: background .3s var(--ease), color .3s var(--ease);
        }
        .mobile-drawer a.drawer-link:hover,
        .mobile-drawer a.drawer-link.active {
            color: var(--accent);
            background: var(--accent-dim);
        }
        .drawer-backdrop {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 1080;
            opacity: 0;
            visibility: hidden;
            transition: opacity .4s var(--ease), visibility .4s;
        }
        .drawer-backdrop.show {
            opacity: 1;
            visibility: visible;
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            min-height: clamp(76vh, 90vh, 92vh);
            min-height: 640px;
            display: flex;
            align-items: center;
            padding-top: 120px;
            padding-bottom: 80px;
            background: linear-gradient(to bottom, rgba(11, 15, 24, 0.1) 0%, rgba(11, 15, 24, 0.35) 50%, rgba(11, 15, 24, 0.92) 100%), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            overflow: hidden;
        }
        .hero-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 10%, rgba(214, 179, 108, 0.08), transparent 55%);
            animation: kenburns 20s ease-in-out infinite alternate;
            z-index: 0;
        }
        .hero-section .container {
            position: relative;
            z-index: 2;
        }
        .hero-flag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-family: var(--num);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: .16em;
            color: var(--accent);
            text-transform: uppercase;
            margin-bottom: 18px;
        }
        .hero-flag::before {
            content: "";
            width: 32px;
            height: 1px;
            background: var(--accent);
        }
        .hero-title {
            font-size: clamp(1.9rem, 4.2vw, 3.4rem);
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: .04em;
            color: var(--text-hi);
            max-width: 720px;
            margin-bottom: 24px;
        }
        .hero-subtitle {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-body);
            max-width: 640px;
            margin-bottom: 36px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 32px;
        }
        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .hero-meta li {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-low);
            background: rgba(11, 15, 24, 0.4);
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            padding: 5px 14px;
        }
        .hero-meta li i {
            color: var(--accent);
        }
        .scroll-indicator {
            position: absolute;
            bottom: 28px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            z-index: 3;
            color: var(--text-low);
            font-size: 12px;
            letter-spacing: .12em;
        }
        .scroll-indicator .line {
            width: 1px;
            height: 48px;
            background: linear-gradient(to bottom, var(--accent), transparent);
            position: relative;
            overflow: hidden;
        }
        .scroll-indicator .line::after {
            content: "";
            position: absolute;
            left: 0;
            top: -20px;
            width: 100%;
            height: 20px;
            background: var(--accent);
            animation: scrollline 2.2s var(--ease) infinite;
        }
        @keyframes scrollline {
            0% { top: -20px; }
            100% { top: 48px; }
        }
        @keyframes kenburns {
            0% { transform: scale(1.02); }
            100% { transform: scale(1.08); }
        }

        /* ===== Collection cards ===== */
        .collection-grid {
            --gap: 20px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--gap);
        }
        .collection-card {
            position: relative;
            display: block;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 26px 24px 22px;
            min-height: 180px;
            transition: all .35s var(--ease);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .collection-card::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            height: 2px;
            width: 100%;
            background: var(--accent);
            transform: scaleX(0);
            transform-origin: left center;
            transition: transform .4s var(--ease);
        }
        .collection-card:hover {
            background: var(--surface-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(214, 179, 108, 0.2);
        }
        .collection-card:hover::after {
            transform: scaleX(1);
        }
        .collection-card .cc-num {
            font-family: var(--num);
            font-size: 13px;
            font-weight: 700;
            color: var(--text-low);
            letter-spacing: .08em;
            transition: color .3s var(--ease);
            display: block;
            margin-bottom: 14px;
        }
        .collection-card:hover .cc-num {
            color: var(--accent);
        }
        .collection-card .cc-title {
            font-family: var(--serif);
            font-size: 18px;
            font-weight: 700;
            color: var(--text-hi);
            margin-bottom: 6px;
        }
        .collection-card .cc-count {
            font-size: 13px;
            color: var(--text-low);
        }
        .collection-card .cc-icon {
            position: absolute;
            right: 20px;
            bottom: 20px;
            color: var(--text-low);
            font-size: 16px;
            transition: all .35s var(--ease);
        }
        .collection-card:hover .cc-icon {
            color: var(--accent);
            transform: translateX(4px);
        }

        /* ===== Featured cards ===== */
        .featured-main {
            position: relative;
            display: block;
            border-radius: var(--radius-card);
            overflow: hidden;
            min-height: 420px;
            background: var(--surface);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: all .4s var(--ease);
        }
        .featured-main:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(214, 179, 108, 0.2);
            transform: translateY(-4px);
        }
        .featured-main img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
            transition: transform .6s var(--ease);
        }
        .featured-main:hover img {
            transform: scale(1.04);
        }
        .featured-main .fm-overlay {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            min-height: 420px;
            padding: 32px;
            background: linear-gradient(to top, rgba(11, 15, 24, 0.9) 0%, rgba(11, 15, 24, 0.4) 55%, transparent 100%);
        }
        .featured-main .fm-badge {
            display: inline-block;
            align-self: flex-start;
            background: var(--accent);
            color: #0B0F18;
            font-size: 12px;
            font-weight: 700;
            border-radius: var(--radius-pill);
            padding: 4px 12px;
            margin-bottom: 14px;
        }
        .featured-main .fm-title {
            font-size: clamp(1.3rem, 2vw, 1.8rem);
            font-weight: 700;
            color: var(--text-hi);
            margin-bottom: 10px;
            max-width: 560px;
        }
        .featured-main .fm-desc {
            font-size: 14px;
            color: var(--text-body);
            max-width: 520px;
            margin-bottom: 12px;
        }
        .featured-main .fm-meta {
            font-size: 13px;
            color: var(--text-low);
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .featured-side {
            display: flex;
            flex-direction: column;
            gap: 20px;
            height: 100%;
        }
        .featured-side-card {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 14px;
            transition: all .35s var(--ease);
            flex: 1;
            box-shadow: var(--shadow-card);
        }
        .featured-side-card:hover {
            background: var(--surface-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(214, 179, 108, 0.2);
        }
        .featured-side-card img {
            width: 96px;
            height: 96px;
            object-fit: cover;
            border-radius: 10px;
            flex-shrink: 0;
            transition: transform .4s var(--ease);
        }
        .featured-side-card:hover img {
            transform: scale(1.05);
        }
        .featured-side-card .fsc-body {
            min-width: 0;
        }
        .featured-side-card .fsc-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-hi);
            line-height: 1.5;
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .featured-side-card .fsc-desc {
            font-size: 13px;
            color: var(--text-low);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 4px;
        }
        .featured-side-card .fsc-date {
            font-size: 12px;
            color: var(--text-low);
        }

        /* ===== Latest / CMS list ===== */
        .latest-list {
            border-top: 1px solid var(--border);
        }
        .news-row {
            display: grid;
            grid-template-columns: 90px 120px 1fr 2fr;
            gap: 20px;
            align-items: center;
            padding: 20px 8px;
            border-bottom: 1px solid var(--border);
            transition: background .3s var(--ease), padding-left .3s var(--ease);
            border-radius: 6px;
            position: relative;
        }
        .news-row:hover {
            background: var(--surface);
            padding-left: 16px;
            box-shadow: var(--shadow-card);
        }
        .news-row .news-date {
            font-family: var(--num);
            font-size: 13px;
            color: var(--text-low);
            white-space: nowrap;
        }
        .news-row .news-cat {
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            background: var(--accent-dim);
            border-radius: var(--radius-pill);
            padding: 4px 12px;
            display: inline-block;
            justify-self: start;
            white-space: nowrap;
        }
        .news-row .news-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-hi);
            line-height: 1.5;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            transition: color .3s var(--ease);
        }
        .news-row:hover .news-title {
            color: var(--accent);
        }
        .news-row .news-summary {
            font-size: 13px;
            color: var(--text-low);
            line-height: 1.6;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .empty-tip {
            text-align: center;
            padding: 48px 16px;
            color: var(--text-low);
            font-size: 15px;
            border-bottom: 1px solid var(--border);
            margin-bottom: 0;
        }

        /* ===== Topics ===== */
        .topics-wrap {
            background: linear-gradient(120deg, rgba(214, 179, 108, 0.04), transparent 70%), url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            border-radius: var(--radius-card);
            padding: 40px;
            border: 1px solid var(--border);
        }
        .topic-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 32px;
        }
        .topic-tags a {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-body);
            background: rgba(11, 15, 24, 0.6);
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            padding: 6px 14px;
            transition: all .3s var(--ease);
        }
        .topic-tags a:hover {
            color: #0B0F18;
            background: var(--accent);
            border-color: var(--accent);
            transform: translateY(-2px);
        }
        .topic-rank {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .topic-rank li {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 12px 8px;
            border-bottom: 1px solid var(--border);
            transition: background .3s var(--ease), padding-left .3s var(--ease);
            border-radius: 6px;
        }
        .topic-rank li:hover {
            background: rgba(20, 28, 43, 0.6);
            padding-left: 16px;
        }
        .topic-rank .rank-num {
            font-family: var(--num);
            font-size: 18px;
            font-weight: 700;
            color: var(--accent);
            width: 28px;
            flex-shrink: 0;
        }
        .topic-rank .rank-title {
            flex: 1;
            font-size: 15px;
            color: var(--text-hi);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .topic-rank .rank-count {
            font-size: 12px;
            color: var(--text-low);
            flex-shrink: 0;
            background: var(--accent-dim);
            border-radius: var(--radius-pill);
            padding: 2px 10px;
        }

        /* ===== Recommend cards ===== */
        .recommend-card {
            display: block;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            height: 100%;
            box-shadow: var(--shadow-card);
            transition: all .35s var(--ease);
        }
        .recommend-card:hover {
            background: var(--surface-hover);
            border-color: rgba(214, 179, 108, 0.25);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .recommend-card .rc-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            transition: transform .5s var(--ease);
        }
        .recommend-card:hover .rc-img {
            transform: scale(1.04);
        }
        .recommend-card .rc-body {
            padding: 20px;
        }
        .recommend-card .rc-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-hi);
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color .3s var(--ease);
        }
        .recommend-card:hover .rc-title {
            color: var(--accent);
        }
        .recommend-card .rc-meta {
            font-size: 13px;
            color: var(--text-low);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        /* ===== CTA Cover ===== */
        .cta-cover {
            position: relative;
            background: linear-gradient(to bottom, var(--bg), var(--bg));
            padding-top: var(--section-space);
            padding-bottom: var(--section-space);
            text-align: center;
        }
        .cta-cover .cta-inner {
            position: relative;
            background: linear-gradient(135deg, rgba(214, 179, 108, 0.08), transparent 45%), url('/assets/images/backpic/back-3.webp') center center / cover no-repeat;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: clamp(2.5rem, 6vw, 5rem) clamp(1.5rem, 4vw, 4rem);
            overflow: hidden;
        }
        .cta-cover .cta-inner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(11, 15, 24, 0.82);
            z-index: 1;
        }
        .cta-cover .cta-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
            margin: 0 auto;
        }
        .cta-cover .cta-title {
            font-size: clamp(1.5rem, 2.6vw, 2.1rem);
            font-weight: 700;
            color: var(--text-hi);
            margin-bottom: 14px;
        }
        .cta-cover .cta-desc {
            font-size: 15px;
            color: var(--text-body);
            margin-bottom: 28px;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }
        .gold-dot {
            position: absolute;
            width: 6px;
            height: 6px;
            background: var(--accent);
            border-radius: 50%;
            opacity: 0.5;
            z-index: 2;
            animation: breath 3s ease-in-out infinite;
        }
        @keyframes breath {
            0%, 100% { opacity: 0.3; transform: scale(0.8); }
            50% { opacity: 1; transform: scale(1.15); }
        }

        /* ===== FAQ ===== */
        .faq-section {
            max-width: 860px;
            margin: 0 auto;
        }
        .accordion-item {
            background: transparent;
            border: none;
            border-bottom: 1px solid var(--border);
        }
        .accordion-button {
            background: transparent;
            color: var(--text-hi);
            font-size: 16px;
            font-weight: 500;
            font-family: var(--sans);
            padding: 22px 8px;
            box-shadow: none;
            border: none;
            transition: color .3s var(--ease), background .3s var(--ease);
            border-radius: 0;
        }
        .accordion-button:focus {
            box-shadow: none;
            border-color: transparent;
        }
        .accordion-button:not(.collapsed) {
            background: var(--surface);
            color: var(--accent);
            box-shadow: none;
            border-radius: 8px 8px 0 0;
        }
        .accordion-button::after {
            background-image: none;
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            content: "\f067";
            color: var(--accent);
            width: auto;
            height: auto;
            background-size: auto;
            transition: transform .35s var(--ease), color .3s var(--ease);
        }
        .accordion-button:not(.collapsed)::after {
            background-image: none;
            content: "\f068";
            color: var(--accent);
            transform: none;
        }
        .accordion-body {
            padding: 8px 16px 24px;
            font-size: 15px;
            color: var(--text-body);
            background: var(--surface);
            border-radius: 0 0 8px 8px;
        }

        /* ===== Contact strip ===== */
        .contact-strip {
            background: var(--bg-alt);
            border-top: 1px solid var(--border);
            padding: 44px 0;
        }
        .contact-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }
        .contact-inner h3 {
            font-size: 18px;
            margin-bottom: 6px;
        }
        .contact-inner p {
            margin-bottom: 0;
            color: var(--text-low);
            font-size: 14px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #070A11;
            border-top: 1px solid var(--border);
            padding-top: 60px;
            padding-bottom: 24px;
        }
        .footer-brand .brand-logo {
            font-size: 20px;
            margin-bottom: 12px;
        }
        .footer-desc {
            font-size: 14px;
            color: var(--text-low);
            line-height: 1.7;
            max-width: 320px;
            margin-bottom: 16px;
        }
        .footer-heading {
            font-size: 13px;
            font-weight: 700;
            color: var(--text-hi);
            letter-spacing: .08em;
            margin-bottom: 16px;
            text-transform: uppercase;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--text-body);
            transition: color .3s var(--ease), padding-left .3s var(--ease);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-contact {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.9;
        }
        .footer-contact i {
            color: var(--accent);
            width: 20px;
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            margin-top: 40px;
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-low);
        }
        .footer-bottom .beian {
            color: var(--text-low);
        }

        /* ===== Reveal animation ===== */
        [data-reveal] {
            opacity: 0;
            transform: translateY(16px);
            transition: opacity .6s var(--ease), transform .6s var(--ease);
        }
        [data-reveal].visible {
            opacity: 1;
            transform: none;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1199.98px) {
            .collection-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hot-pills {
                display: none;
            }
        }
        @media (max-width: 991.98px) {
            .featured-side {
                margin-top: 20px;
            }
            .news-row {
                grid-template-columns: 90px 1fr;
                gap: 8px 16px;
            }
            .news-row .news-title {
                white-space: normal;
                display: -webkit-box;
                -webkit-line-clamp: 2;
                -webkit-box-orient: vertical;
            }
            .news-row .news-summary {
                display: none;
            }
        }
        @media (max-width: 767.98px) {
            .site-header .nav-brand-row {
                padding: 0 16px;
            }
            .site-header .nav-channel-row {
                display: none;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .nav-tools .nav-phone {
                display: none;
            }
            .site-header.scrolled .nav-brand-row {
                height: 64px;
            }
            .hero-section {
                min-height: 640px;
                padding-top: 100px;
                padding-bottom: 60px;
            }
            .hero-title {
                font-size: 1.9rem;
            }
            .collection-grid {
                grid-template-columns: 1fr;
            }
            .topics-wrap {
                padding: 24px 20px;
            }
            .contact-inner {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: stretch;
            }
            .cta-buttons .btn {
                width: 100%;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 575.98px) {
            .section-space {
                padding-top: 40px;
                padding-bottom: 40px;
            }
            .featured-main .fm-overlay {
                padding: 22px;
                min-height: 340px;
            }
            .featured-side-card {
                flex-direction: row;
                padding: 10px;
            }
            .featured-side-card img {
                width: 76px;
                height: 76px;
            }
            .news-row {
                padding: 16px 4px;
            }
        }

/* roulang page: category1 */
:root {
            --bg: #0B0F18;
            --bg-alt: #101623;
            --surface: #141C2B;
            --surface-hover: #1A2436;
            --border: rgba(255, 255, 255, 0.08);
            --border-strong: rgba(255, 255, 255, 0.16);
            --text-hi: #F1F0EC;
            --text-body: #B7BFCF;
            --text-low: #7D8899;
            --accent: #D6B36C;
            --accent-strong: #E7C684;
            --accent-dim: rgba(214, 179, 108, 0.14);
            --info: #80A9C6;
            --danger: #E0777D;
            --radius-card: 14px;
            --radius-btn: 6px;
            --radius-img: 12px;
            --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 10px 30px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(214, 179, 108, 0.18);
            --shadow-float: 0 20px 50px rgba(0, 0, 0, 0.5);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
            --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
            --font-en: "Archivo", "Helvetica Neue", sans-serif;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text-body);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }

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

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

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

        .container {
            max-width: 1280px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        .section {
            padding: clamp(3.5rem, 7vw, 6rem) 0;
            position: relative;
        }

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

        .eyebrow {
            font-family: var(--font-en);
            font-size: 12px;
            letter-spacing: 0.14em;
            text-transform: uppercase;
            color: var(--accent);
            display: inline-block;
            margin-bottom: 12px;
            font-weight: 500;
        }

        .section-title {
            font-family: var(--font-serif);
            font-size: clamp(1.4rem, 2.4vw, 2rem);
            font-weight: 700;
            color: var(--text-hi);
            line-height: 1.35;
            letter-spacing: 0.05em;
            margin-bottom: 1.5rem;
        }

        .section-title span {
            color: var(--accent);
        }

        .text-muted-custom {
            color: var(--text-low) !important;
            font-size: 14px;
        }

        .btn {
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 14px;
            padding: 12px 28px;
            transition: var(--transition);
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-accent {
            background: var(--accent);
            color: #0B0F18;
        }

        .btn-accent:hover {
            background: var(--accent-strong);
            color: #0B0F18;
            transform: translateY(-1px);
        }

        .btn-accent:active {
            transform: translateY(1px);
        }

        .btn-outline {
            background: transparent;
            border: 1px solid var(--accent);
            color: var(--accent);
        }

        .btn-outline:hover {
            background: var(--accent-dim);
            color: var(--accent-strong);
            transform: translateY(-1px);
        }

        .btn-outline:active {
            transform: translateY(1px);
        }

        .btn-primary,
        .btn-primary:focus,
        .btn-primary:active {
            background: var(--accent) !important;
            border-color: var(--accent) !important;
            color: #0B0F18 !important;
            box-shadow: none !important;
        }

        .btn-primary:hover {
            background: var(--accent-strong) !important;
            border-color: var(--accent-strong) !important;
            color: #0B0F18 !important;
        }

        .badge-accent {
            background: var(--accent-dim);
            color: var(--accent);
            border-radius: 999px;
            font-size: 12px;
            font-weight: 500;
            padding: 4px 14px;
            letter-spacing: 0.02em;
        }

        .badge-outline {
            background: transparent;
            border: 1px solid var(--border-strong);
            color: var(--text-body);
            border-radius: 999px;
            font-size: 13px;
            padding: 4px 14px;
        }

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 15, 24, 0.9);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(7, 10, 17, 0.96);
        }

        .nav-inner {
            padding: 0;
        }

        .nav-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 56px;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-serif);
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-hi);
            letter-spacing: 0.02em;
        }

        .brand-logo i {
            color: var(--accent);
            font-size: 1rem;
        }

        .brand-logo:hover {
            color: var(--text-hi);
        }

        .nav-tools {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .nav-search {
            background: none;
            border: none;
            color: var(--text-body);
            font-size: 1rem;
            width: 36px;
            height: 36px;
            border-radius: 6px;
            cursor: pointer;
            transition: var(--transition);
        }

        .nav-search:hover {
            color: var(--accent);
            background: var(--accent-dim);
        }

        .nav-phone {
            font-size: 14px;
            color: var(--text-body);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border: 1px solid var(--border);
            border-radius: 999px;
            transition: var(--transition);
        }

        .nav-phone:hover {
            color: var(--accent);
            border-color: var(--accent);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-hi);
            font-size: 1.2rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
        }

        .nav-channel-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 48px;
            border-top: 1px solid var(--border);
        }

        .channel-nav {
            list-style: none;
            display: flex;
            gap: 0;
            margin: 0;
            padding: 0;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
        }

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

        .channel-nav li {
            margin: 0;
        }

        .channel-nav li a {
            display: inline-flex;
            align-items: center;
            height: 48px;
            padding: 0 18px;
            font-size: 15px;
            color: var(--text-body);
            white-space: nowrap;
            position: relative;
            border-bottom: 2px solid transparent;
            transition: var(--transition);
        }

        .channel-nav li a:hover {
            color: var(--text-hi);
        }

        .channel-nav li a.active {
            color: var(--accent);
            border-bottom-color: var(--accent);
        }

        .hot-pills {
            list-style: none;
            display: flex;
            gap: 8px;
            margin: 0;
            padding: 0;
            flex-shrink: 0;
            margin-left: 16px;
        }

        .hot-pills li a {
            display: inline-block;
            padding: 3px 12px;
            border: 1px solid var(--border-strong);
            border-radius: 999px;
            font-size: 13px;
            color: var(--text-low);
            transition: var(--transition);
            white-space: nowrap;
        }

        .hot-pills li a:hover {
            color: var(--accent);
            border-color: var(--accent);
        }

        /* ===== Mobile drawer ===== */
        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -300px;
            width: 280px;
            height: 100vh;
            background: var(--bg);
            z-index: 1100;
            padding: 32px 24px;
            transition: right 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            border-left: 1px solid var(--border);
            box-shadow: var(--shadow-float);
        }

        .mobile-drawer.open {
            right: 0;
        }

        .drawer-backdrop {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 1050;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s;
        }

        .drawer-backdrop.open {
            opacity: 1;
            pointer-events: auto;
        }

        .drawer-nav {
            list-style: none;
        }

        .drawer-nav li {
            margin-bottom: 4px;
        }

        .drawer-nav li a {
            display: block;
            padding: 12px 8px;
            font-size: 16px;
            color: var(--text-body);
            border-radius: 8px;
        }

        .drawer-nav li a:hover {
            color: var(--accent);
            background: var(--accent-dim);
        }

        .drawer-nav li a.active {
            color: var(--accent);
            background: var(--accent-dim);
        }

        .drawer-close {
            position: absolute;
            top: 16px;
            right: 16px;
            background: none;
            border: none;
            color: var(--text-body);
            font-size: 1.2rem;
            cursor: pointer;
        }

        /* ===== Hero ===== */
        .category-hero {
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            padding: 120px 0 60px;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, rgba(11, 15, 24, 0.6), rgba(11, 15, 24, 0.9));
        }

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

        .category-hero h1 {
            font-family: var(--font-serif);
            font-size: clamp(1.9rem, 4.2vw, 3rem);
            font-weight: 700;
            color: var(--text-hi);
            line-height: 1.25;
            letter-spacing: 0.02em;
            margin-bottom: 12px;
        }

        .category-hero p {
            font-size: 16px;
            max-width: 680px;
            color: var(--text-body);
            line-height: 1.8;
        }

        .hero-breadcrumb {
            display: flex;
            gap: 8px;
            font-size: 13px;
            color: var(--text-low);
            margin-bottom: 20px;
        }

        .hero-breadcrumb a {
            color: var(--accent);
        }

        .hero-breadcrumb i {
            font-size: 10px;
            line-height: 22px;
        }

        /* ===== Feature split ===== */
        .feature-split {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 32px;
        }

        .feature-split .text-col {
            flex: 1 1 45%;
            min-width: 280px;
        }

        .feature-split .img-col {
            flex: 1 1 45%;
            min-width: 280px;
            position: relative;
        }

        .feature-split .img-col img {
            width: 100%;
            border-radius: var(--radius-img);
            box-shadow: var(--shadow-hover);
            transition: var(--transition);
            display: block;
        }

        .feature-split .img-col:hover img {
            transform: scale(1.02);
        }

        .feature-split h3 {
            font-family: var(--font-serif);
            font-size: clamp(1.05rem, 1.4vw, 1.35rem);
            color: var(--text-hi);
            font-weight: 600;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }

        .feature-split p {
            margin-bottom: 16px;
            font-size: 15px;
        }

        .feature-list {
            list-style: none;
            padding: 0;
            margin: 16px 0 0;
        }

        .feature-list li {
            position: relative;
            padding: 6px 0 6px 26px;
            font-size: 15px;
            color: var(--text-body);
        }

        .feature-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 15px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            opacity: 0.7;
        }

        .img-badge {
            position: absolute;
            bottom: 20px;
            left: 20px;
            background: rgba(11, 15, 24, 0.85);
            border: 1px solid var(--border-strong);
            border-radius: 999px;
            padding: 6px 16px;
            font-size: 12px;
            color: var(--accent);
            backdrop-filter: blur(8px);
            letter-spacing: 0.03em;
        }

        /* ===== Steps ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 16px;
            margin-top: 32px;
        }

        .step-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            background: var(--surface-hover);
        }

        .step-card .step-num {
            font-family: var(--font-en);
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent);
            opacity: 0.6;
            line-height: 1;
            margin-bottom: 12px;
        }

        .step-card h4 {
            font-size: 16px;
            color: var(--text-hi);
            font-weight: 600;
            margin-bottom: 6px;
        }

        .step-card p {
            font-size: 13px;
            color: var(--text-low);
            line-height: 1.6;
            margin: 0;
        }

        /* ===== Tool cards ===== */
        .tool-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
        }

        .tool-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: var(--transition);
            position: relative;
        }

        .tool-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(214, 179, 108, 0.25);
        }

        .tool-card i {
            font-size: 1.6rem;
            color: var(--accent);
            margin-bottom: 14px;
            display: block;
        }

        .tool-card h4 {
            font-size: 16px;
            color: var(--text-hi);
            font-weight: 600;
            margin-bottom: 8px;
        }

        .tool-card p {
            font-size: 14px;
            color: var(--text-low);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== Related category cards ===== */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

        .related-link-card {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 28px;
            transition: var(--transition);
        }

        .related-link-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            background: var(--surface-hover);
        }

        .related-link-card .rl-title {
            font-family: var(--font-serif);
            font-size: 17px;
            color: var(--text-hi);
            font-weight: 600;
            margin-bottom: 4px;
        }

        .related-link-card .rl-subtitle {
            font-size: 13px;
            color: var(--text-low);
        }

        .related-link-card .rl-icon {
            color: var(--accent);
            font-size: 1.2rem;
            transition: var(--transition);
        }

        .related-link-card:hover .rl-icon {
            transform: translateX(4px);
        }

        /* ===== FAQ ===== */
        .faq-accordion .accordion-item {
            background: transparent;
            border: none;
            border-bottom: 1px solid var(--border);
        }

        .faq-accordion .accordion-button {
            background: transparent;
            color: var(--text-hi);
            font-size: 15px;
            font-weight: 500;
            padding: 20px 40px 20px 0;
            box-shadow: none;
            border: none;
            position: relative;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--accent);
            background: transparent;
        }

        .faq-accordion .accordion-button::after {
            background-image: none;
            content: '+';
            font-weight: 300;
            font-size: 20px;
            color: var(--accent);
            position: absolute;
            right: 8px;
            top: 18px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            transition: transform 0.3s ease;
        }

        .faq-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
            content: '+';
        }

        .faq-accordion .accordion-body {
            padding: 0 40px 20px 0;
            font-size: 14px;
            color: var(--text-body);
            background: transparent;
            border: none;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            background: var(--bg-alt);
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(214, 179, 108, 0.12) 0%, transparent 70%);
            animation: pulseGlow 4s ease-in-out infinite;
        }

        .cta-inner {
            text-align: center;
            padding: 48px 24px;
            position: relative;
            z-index: 2;
        }

        .cta-inner h2 {
            font-family: var(--font-serif);
            color: var(--text-hi);
            font-size: clamp(1.4rem, 2.4vw, 2rem);
            font-weight: 700;
            margin-bottom: 8px;
        }

        .cta-inner p {
            color: var(--text-low);
            max-width: 560px;
            margin: 0 auto 32px;
            font-size: 15px;
        }

        .cta-buttons {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .star-points {
            position: absolute;
            width: 4px;
            height: 4px;
            background: var(--accent);
            border-radius: 50%;
            opacity: 0.5;
        }

        .star-points:nth-child(1) { top: 20%; left: 15%; animation: pulsePoint 3s ease-in-out infinite; }
        .star-points:nth-child(2) { top: 60%; left: 80%; animation: pulsePoint 4s ease-in-out infinite 0.5s; }
        .star-points:nth-child(3) { top: 30%; left: 70%; animation: pulsePoint 3.5s ease-in-out infinite 1s; }
        .star-points:nth-child(4) { top: 70%; left: 20%; animation: pulsePoint 4.5s ease-in-out infinite 1.5s; }

        @keyframes pulsePoint {
            0%, 100% { opacity: 0.3; transform: scale(1); }
            50% { opacity: 1; transform: scale(1.4); }
        }

        @keyframes pulseGlow {
            0%, 100% { opacity: 0.4; transform: scale(1); }
            50% { opacity: 0.9; transform: scale(1.05); }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #070A11;
            padding-top: 56px;
            padding-bottom: 24px;
            border-top: 1px solid var(--border);
        }

        .site-footer .brand-logo {
            margin-bottom: 16px;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--text-low);
            line-height: 1.7;
            margin-bottom: 12px;
            max-width: 340px;
        }

        .footer-heading {
            font-size: 15px;
            color: var(--text-hi);
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

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

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

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

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

        .footer-contact div {
            color: var(--text-body);
            font-size: 14px;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-contact i {
            color: var(--accent);
            width: 18px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            margin-top: 40px;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-low);
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-bottom .beian a {
            color: var(--text-low);
        }

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

        /* ===== Reveal ===== */
        [data-reveal] {
            opacity: 0;
            transform: translateY(16px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        [data-reveal].revealed {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== Responsive ===== */
        @media (max-width: 991.98px) {
            .hot-pills {
                display: none;
            }
            .feature-split .text-col,
            .feature-split .img-col {
                flex: 1 1 100%;
            }
            .category-hero {
                min-height: 280px;
                padding-top: 100px;
            }
        }

        @media (max-width: 767.98px) {
            .nav-toggle {
                display: inline-flex;
            }
            .nav-phone {
                display: none;
            }
            .nav-channel-row {
                display: none;
            }
            .category-hero {
                min-height: 240px;
                padding-top: 90px;
                padding-bottom: 40px;
            }
            .category-hero h1 {
                font-size: 1.9rem;
            }
            .cta-buttons .btn {
                width: 100%;
                justify-content: center;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 575.98px) {
            .section {
                padding: 2.5rem 0;
            }
            .feature-split .img-col img {
                border-radius: 10px;
            }
            .tool-grid {
                grid-template-columns: 1fr;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: article */
:root {
  --bg: #0B0F18;
  --bg-alt: #101623;
  --surface: #141C2B;
  --surface-hover: #1A2436;
  --border: rgba(255,255,255,0.08);
  --border-strong: rgba(255,255,255,0.16);
  --text-hi: #F1F0EC;
  --text-body: #B7BFCF;
  --text-low: #7D8899;
  --accent: #D6B36C;
  --accent-strong: #E7C684;
  --accent-dim: rgba(214,179,108,0.14);
  --info: #80A9C6;
  --danger: #E0777D;
  --radius-card: 14px;
  --radius-btn: 6px;
  --shadow-card: 0 1px 2px rgba(0,0,0,0.35);
  --shadow-hover: 0 10px 30px rgba(0,0,0,0.45), 0 0 0 1px rgba(214,179,108,0.18);
  --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text-body);
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-strong); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.container { max-width: 1320px; }

/* ---------- 按钮 ---------- */
.btn {
  font-family: inherit;
  font-weight: 700;
  font-size: 14px;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  border: 0;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.btn-primary { background: var(--accent); color: #0B0F18; }
.btn-primary:hover,
.btn-primary:focus { background: var(--accent-strong); color: #0B0F18; transform: translateY(-1px); box-shadow: 0 8px 20px rgba(214,179,108,0.2); }
.btn-primary:active { transform: translateY(1px); box-shadow: none; }
.btn-primary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn-outline { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
.btn-outline:hover { background: var(--accent-dim); color: var(--accent); box-shadow: 0 8px 20px rgba(214,179,108,0.12); }
.btn-block { display: flex; width: 100%; }

/* ---------- 导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1030;
  background: rgba(11,15,24,0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.site-header.scrolled { box-shadow: 0 6px 24px rgba(0,0,0,0.4); }
.nav-inner { display: flex; flex-direction: column; }
.nav-brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 56px;
  gap: 16px;
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--text-hi);
  letter-spacing: 0.04em;
}
.brand-logo i { color: var(--accent); font-size: 1.15rem; }
.brand-logo:hover { color: var(--accent-strong); }
.nav-tools { display: flex; align-items: center; gap: 12px; }
.nav-search {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-body);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.nav-search:hover { color: var(--accent); border-color: var(--accent); }
.nav-phone {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-hi);
  padding: 8px 16px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  transition: var(--transition);
}
.nav-phone:hover { border-color: var(--accent); color: var(--accent); }
.nav-toggle { display: none; width: 36px; height: 36px; background: transparent; border: 0; color: var(--text-hi); font-size: 1.2rem; }
.nav-channel-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 48px;
  border-top: 1px solid var(--border);
}
.channel-nav { display: flex; align-items: center; gap: 4px; }
.channel-nav li a {
  display: block;
  padding: 10px 14px;
  color: var(--text-body);
  font-size: 15px;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}
.channel-nav li a:hover { color: var(--text-hi); }
.channel-nav li a.active { color: var(--accent); border-bottom-color: var(--accent); }
.hot-pills { display: flex; align-items: center; gap: 8px; }
.hot-pills li a {
  font-size: 12px;
  color: var(--text-low);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 14px;
  white-space: nowrap;
  transition: var(--transition);
}
.hot-pills li a:hover { color: var(--accent); border-color: var(--accent); background: var(--accent-dim); }

/* 移动端抽屉 */
.mobile-drawer { display: none; }
.drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 1040;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}
.drawer-backdrop.show { opacity: 1; visibility: visible; }
@media (max-width: 767.98px) {
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .nav-channel-row { display: none; }
  .nav-phone { display: none; }
  .mobile-drawer {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    right: -300px;
    width: 280px;
    height: 100vh;
    background: var(--bg);
    z-index: 1050;
    transition: right 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    padding: 30px 24px;
    overflow-y: auto;
    box-shadow: -20px 0 50px rgba(0,0,0,0.5);
  }
  .mobile-drawer.open { right: 0; }
  .mobile-drawer .channel-nav { flex-direction: column; align-items: stretch; gap: 0; margin-bottom: 20px; }
  .mobile-drawer .channel-nav a { padding: 14px 0; border-bottom: 1px solid var(--border); font-size: 15px; }
  .mobile-drawer .hot-pills { flex-wrap: wrap; }
  .mobile-drawer .hot-pills li a { font-size: 12px; }
}

/* ---------- 文章 Hero ---------- */
.article-hero {
  position: relative;
  padding: 64px 0 52px;
  background: linear-gradient(135deg, #101623 0%, #0B0F18 100%);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.article-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.3;
}
.article-hero .container { position: relative; z-index: 1; }
.article-breadcrumb {
  font-size: 13px;
  color: var(--text-low);
  margin-bottom: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
.article-breadcrumb a { color: var(--text-low); }
.article-breadcrumb a:hover { color: var(--accent); }
.article-breadcrumb .sep { color: rgba(255,255,255,0.25); }
.article-breadcrumb .current { color: var(--text-body); }
.article-hero h1 {
  font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  font-size: clamp(1.9rem, 4.2vw, 3.2rem);
  font-weight: 700;
  color: var(--text-hi);
  line-height: 1.3;
  margin-bottom: 16px;
  max-width: 860px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  font-size: 14px;
  color: var(--text-low);
}
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }
.article-meta i { color: var(--accent); }
.cat-badge {
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 13px;
  padding: 4px 16px;
  border-radius: 999px;
  font-weight: 500;
}

/* ---------- 正文区 ---------- */
.article-body {
  padding: clamp(2.5rem, 5vw, 4rem) 0;
}
.article-content { max-width: 760px; }
.article-content p { margin-bottom: 24px; line-height: 1.9; }
.article-content h2 {
  font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text-hi);
  margin: 40px 0 16px;
  padding-left: 14px;
  border-left: 3px solid var(--accent);
}
.article-content h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-hi);
  margin: 28px 0 12px;
}
.article-content blockquote {
  border-left: 3px solid var(--accent);
  background: var(--bg-alt);
  padding: 16px 20px;
  border-radius: 0 8px 8px 0;
  color: var(--text-body);
  margin: 24px 0;
}
.article-content img { border-radius: 12px; margin: 20px 0; }
.article-content ul, .article-content ol { margin: 0 0 24px 20px; }
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content li { margin-bottom: 8px; }
.article-content a { color: var(--accent); text-decoration: underline; text-underline-offset: 4px; }
.article-content a:hover { color: var(--accent-strong); }
.article-content table { width: 100%; border-collapse: collapse; margin: 24px 0; }
.article-content th, .article-content td { border: 1px solid var(--border); padding: 10px 14px; }
.article-content th { background: var(--bg-alt); color: var(--text-hi); }
.article-footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.article-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.tag {
  display: inline-block;
  padding: 5px 14px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 12px;
  color: var(--text-body);
}
.back-link { font-size: 14px; color: var(--accent); font-weight: 500; }
.back-link:hover { color: var(--accent-strong); }
.not-found { text-align: center; padding: 60px 20px; }
.not-found .nf-icon { font-size: 64px; color: var(--border-strong); margin-bottom: 20px; }
.not-found p { margin: 16px 0 24px; color: var(--text-body); }

/* ---------- 侧边栏 ---------- */
.article-sidebar {
  position: sticky;
  top: 120px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.sidebar-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 24px;
  transition: var(--transition);
}
.sidebar-card:hover { border-color: var(--border-strong); }
.sidebar-card h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-hi);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  letter-spacing: 0.02em;
}
.sidebar-card h3 i { color: var(--accent); }
.toc-list li { border-left: 1px solid var(--border); padding: 6px 0 6px 14px; margin-left: 6px; transition: var(--transition); }
.toc-list li:hover { border-left-color: var(--accent); }
.toc-list a { font-size: 13px; color: var(--text-body); display: block; }
.toc-list a:hover { color: var(--accent); }
.toc-empty { font-size: 13px; color: var(--text-low); }
.sidebar-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.sidebar-list li:last-child { border-bottom: 0; }
.sidebar-list .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  margin-top: 10px;
  flex-shrink: 0;
}
.sidebar-list .muted { font-size: 13px; color: var(--text-low); }
.sidebar-list a { font-size: 13px; color: var(--text-body); line-height: 1.5; }
.sidebar-list a:hover { color: var(--accent); }
.contact-card { border-color: rgba(214,179,108,0.35); }
.contact-card p { font-size: 13px; color: var(--text-low); margin-bottom: 16px; line-height: 1.7; }
@media (max-width: 991.98px) {
  .article-sidebar { position: static; margin-top: 48px; }
}

/* ---------- 板块 ---------- */
.section { padding: clamp(3.5rem, 7vw, 5.5rem) 0; }
.section-head { margin-bottom: 40px; }
.kicker {
  display: block;
  font-family: "Archivo", "Helvetica Neue", sans-serif;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: 8px;
  text-transform: uppercase;
}
.section-head h2 {
  font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  font-size: clamp(1.4rem, 2.4vw, 2rem);
  font-weight: 700;
  color: var(--text-hi);
  letter-spacing: 0.05em;
}

/* 相关推荐 */
.related-section { background: var(--bg-alt); border-top: 1px solid var(--border); }
.related-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  display: block;
  height: 100%;
  transition: var(--transition);
}
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.related-card .thumb { aspect-ratio: 16/9; overflow: hidden; }
.related-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94); }
.related-card:hover .thumb img { transform: scale(1.04); }
.related-card .body { padding: 20px; }
.related-card h3 { font-size: 1rem; font-weight: 600; color: var(--text-hi); margin-bottom: 8px; line-height: 1.5; }
.related-card .meta { font-size: 12px; color: var(--text-low); display: flex; gap: 12px; flex-wrap: wrap; }
.related-card .meta i { color: var(--accent); margin-right: 4px; }

/* ---------- CTA ---------- */
.cta-section {
  position: relative;
  padding: clamp(3.5rem, 7vw, 5rem) 0;
  background: linear-gradient(135deg, #0B0F18 0%, #141C2B 100%);
  text-align: center;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.18;
}
.cta-section .container { position: relative; z-index: 1; }
.cta-section h2 {
  font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  font-size: clamp(1.5rem, 2.6vw, 2.2rem);
  color: var(--text-hi);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}
.cta-section p { max-width: 600px; margin: 0 auto 32px; color: var(--text-body); }
.btn-group-center { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.star-dot {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--accent);
  border-radius: 50%;
  opacity: 0.5;
  animation: pulsate 3s infinite;
}
.star-dot.dot-1 { top: 18%; left: 12%; }
.star-dot.dot-2 { top: 30%; right: 18%; animation-delay: 1s; }
.star-dot.dot-3 { bottom: 24%; left: 24%; animation-delay: 2s; }
@keyframes pulsate {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.6); }
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: #070A11;
  border-top: 1px solid var(--border);
  padding: 64px 0 0;
}
.site-footer .footer-brand .brand-logo { font-size: 1.3rem; margin-bottom: 16px; }
.footer-desc {
  max-width: 340px;
  font-size: 14px;
  color: var(--text-low);
  line-height: 1.8;
  margin-top: 12px;
}
.footer-heading {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-hi);
  margin-bottom: 18px;
  letter-spacing: 0.05em;
}
.footer-links li { margin-bottom: 10px; }
.footer-links a,
.footer-contact div { font-size: 14px; color: var(--text-body); }
.footer-links a:hover { color: var(--accent); }
.footer-contact div { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.footer-contact i { color: var(--accent); width: 16px; }
.footer-bottom {
  border-top: 1px solid var(--border);
  margin-top: 48px;
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--text-low);
  flex-wrap: wrap;
  gap: 8px;
}
.footer-bottom a { color: var(--text-low); }
.footer-bottom a:hover { color: var(--accent); }

/* ---------- 动效 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
[data-reveal].revealed { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 991.98px) {
  .hot-pills { display: none; }
}
@media (max-width: 767.98px) {
  .article-hero { padding: 40px 0 32px; }
  .article-hero h1 { font-size: 1.8rem; }
  .article-meta { gap: 8px 14px; font-size: 13px; }
  .btn-group-center .btn { width: 100%; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .related-card .body { padding: 16px; }
}

/* roulang page: category2 */
:root {
            --bg: #0B0F18;
            --bg-alt: #101623;
            --surface: #141C2B;
            --surface-hover: #1A2436;
            --border: rgba(255, 255, 255, 0.08);
            --border-strong: rgba(255, 255, 255, 0.16);
            --text-hi: #F1F0EC;
            --text-body: #B7BFCF;
            --text-low: #7D8899;
            --accent: #D6B36C;
            --accent-strong: #E7C684;
            --accent-dim: rgba(214, 179, 108, 0.14);
            --info: #80A9C6;
            --danger: #E0777D;
            --font-title: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
            --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
            --font-en: "Archivo", "Helvetica Neue", sans-serif;
            --radius: 14px;
            --radius-sm: 6px;
            --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 10px 30px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(214, 179, 108, 0.18);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-body);
            background: var(--bg);
            color: var(--text-body);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            border: none;
            background: none;
            font-family: inherit;
            cursor: pointer;
        }
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 14px;
            color: var(--text-hi);
            background: var(--bg-alt);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-sm);
            padding: 0 16px;
            height: 48px;
            outline: none;
            transition: var(--transition);
            width: 100%;
        }
        input:focus,
        textarea:focus,
        select:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(214, 179, 108, 0.2);
        }
        .container {
            max-width: 1280px;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-title);
            color: var(--text-hi);
            line-height: 1.35;
            font-weight: 700;
            letter-spacing: 0.02em;
        }
        h1 {
            font-size: clamp(1.9rem, 4.2vw, 3.4rem);
            line-height: 1.25;
        }
        h2 {
            font-size: clamp(1.4rem, 2.4vw, 2rem);
            line-height: 1.35;
        }
        h3 {
            font-size: clamp(1.05rem, 1.4vw, 1.25rem);
            font-weight: 600;
            line-height: 1.5;
        }
        .eyebrow {
            font-family: var(--font-en);
            font-size: 12px;
            letter-spacing: 0.14em;
            text-transform: uppercase;
            color: var(--accent);
            font-weight: 600;
            display: inline-block;
            margin-bottom: 14px;
        }
        .section-block {
            padding: clamp(3.5rem, 7vw, 6rem) 0;
        }
        .section-block.alt {
            background: var(--bg-alt);
        }
        .btn {
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 14px;
            padding: 12px 28px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1px solid transparent;
            line-height: 1.4;
        }
        .btn-primary,
        .btn-gold {
            background: var(--accent);
            color: #0B0F18;
            border-color: var(--accent);
        }
        .btn-primary:hover,
        .btn-gold:hover {
            background: var(--accent-strong);
            border-color: var(--accent-strong);
            color: #0B0F18;
            transform: translateY(-1px);
            box-shadow: 0 8px 24px rgba(214, 179, 108, 0.25);
        }
        .btn-primary:active,
        .btn-gold:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-outline-gold {
            background: transparent;
            color: var(--accent);
            border-color: var(--accent);
        }
        .btn-outline-gold:hover {
            background: var(--accent-dim);
            color: var(--accent-strong);
            border-color: var(--accent-strong);
            transform: translateY(-1px);
        }
        .btn-outline-gold:active {
            transform: translateY(0);
        }
        .btn:focus-visible,
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }
        .badge-pill {
            display: inline-block;
            background: var(--accent-dim);
            color: var(--accent);
            font-size: 12px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 999px;
            letter-spacing: 0.04em;
        }
        .badge-pill.info {
            background: rgba(128, 169, 198, 0.14);
            color: var(--info);
        }

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1030;
            background: rgba(11, 15, 24, 0.9);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .site-header .nav-inner {
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }
        .nav-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 56px;
        }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-title);
            font-size: 22px;
            font-weight: 700;
            color: var(--text-hi);
            letter-spacing: 0.02em;
        }
        .brand-logo i {
            color: var(--accent);
            font-size: 20px;
        }
        .brand-logo:hover {
            color: var(--accent);
        }
        .nav-tools {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-search {
            width: 38px;
            height: 38px;
            border-radius: 6px;
            background: transparent;
            color: var(--text-body);
            font-size: 16px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }
        .nav-search:hover {
            color: var(--accent);
            background: var(--accent-dim);
        }
        .nav-phone {
            font-size: 13px;
            color: var(--text-body);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border: 1px solid var(--border-strong);
            border-radius: 999px;
            transition: var(--transition);
        }
        .nav-phone:hover {
            border-color: var(--accent);
            color: var(--accent);
        }
        .nav-toggle {
            display: none;
            width: 38px;
            height: 38px;
            border-radius: 6px;
            background: transparent;
            color: var(--text-hi);
            font-size: 18px;
            align-items: center;
            justify-content: center;
        }
        .nav-toggle:hover {
            background: var(--accent-dim);
            color: var(--accent);
        }
        .nav-channel-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 48px;
            border-top: 1px solid var(--border);
            transition: var(--transition);
        }
        .channel-nav {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 32px;
            padding: 0;
            margin: 0;
        }
        .channel-nav a {
            font-size: 15px;
            color: var(--text-body);
            padding: 14px 0 12px;
            border-bottom: 2px solid transparent;
            font-weight: 500;
            white-space: nowrap;
        }
        .channel-nav a:hover {
            color: var(--text-hi);
        }
        .channel-nav a.active {
            color: var(--accent);
            border-bottom-color: var(--accent);
        }
        .hot-pills {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 0;
            margin: 0;
        }
        .hot-pills a {
            font-size: 12px;
            color: var(--text-low);
            background: var(--surface);
            border: 1px solid var(--border);
            padding: 5px 14px;
            border-radius: 999px;
            white-space: nowrap;
            transition: var(--transition);
        }
        .hot-pills a:hover {
            color: var(--accent);
            border-color: var(--accent);
            background: var(--accent-dim);
        }
        .site-header.scrolled {
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
        }
        .site-header.scrolled .nav-inner {
            flex-direction: row;
            align-items: center;
        }
        .site-header.scrolled .nav-brand-row {
            height: 64px;
        }
        .site-header.scrolled .nav-channel-row {
            border-top: none;
            min-height: auto;
        }
        .site-header.scrolled .channel-nav a {
            padding: 20px 0;
        }

        /* Mobile drawer */
        .nav-drawer {
            position: fixed;
            top: 0;
            right: -300px;
            width: 280px;
            height: 100vh;
            background: var(--bg);
            z-index: 1050;
            padding: 70px 28px 28px;
            transition: right 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            border-left: 1px solid var(--border);
            box-shadow: -10px 0 40px rgba(0, 0, 0, 0.5);
        }
        .nav-drawer.open {
            right: 0;
        }
        .nav-drawer .drawer-close {
            position: absolute;
            top: 18px;
            right: 20px;
            font-size: 20px;
            color: var(--text-body);
            background: transparent;
            width: 34px;
            height: 34px;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .nav-drawer .drawer-close:hover {
            color: var(--accent);
            background: var(--accent-dim);
        }
        .drawer-nav {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .drawer-nav li {
            margin-bottom: 6px;
        }
        .drawer-nav a {
            display: block;
            padding: 12px 14px;
            border-radius: 8px;
            font-size: 15px;
            color: var(--text-body);
        }
        .drawer-nav a:hover,
        .drawer-nav a.active {
            background: var(--accent-dim);
            color: var(--accent);
        }
        .drawer-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 1040;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }
        .drawer-overlay.open {
            opacity: 1;
            visibility: visible;
        }

        /* ===== Category Hero ===== */
        .category-hero {
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            padding: 140px 0 60px;
            background-size: cover;
            background-position: center;
            background-image: url('/assets/images/backpic/back-1.png');
            isolation: isolate;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 15, 24, 0.55) 0%, rgba(11, 15, 24, 0.85) 100%);
            z-index: -1;
        }
        .category-hero .hero-content {
            max-width: 720px;
        }
        .category-hero .hero-kicker {
            font-family: var(--font-en);
            font-size: 12px;
            letter-spacing: 0.14em;
            color: var(--accent);
            text-transform: uppercase;
            margin-bottom: 12px;
            font-weight: 600;
        }
        .category-hero h1 {
            margin-bottom: 16px;
            font-size: clamp(1.9rem, 4vw, 3rem);
        }
        .category-hero p {
            font-size: 16px;
            color: var(--text-body);
            max-width: 600px;
            margin: 0;
        }

        /* ===== Split Section ===== */
        .split-section {
            padding: clamp(3.5rem, 6vw, 5.5rem) 0;
        }
        .split-section .split-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .split-section.reverse .split-inner {
            direction: rtl;
        }
        .split-section.reverse .split-inner>* {
            direction: ltr;
        }
        .split-media {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .split-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 300px;
            transition: var(--transition);
        }
        .split-media:hover img {
            transform: scale(1.03);
        }
        .split-text .eyebrow {
            margin-bottom: 10px;
        }
        .split-text h2 {
            margin-bottom: 18px;
        }
        .split-text p {
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .split-text .feature-list {
            list-style: none;
            padding: 0;
            margin: 20px 0 0;
        }
        .split-text .feature-list li {
            position: relative;
            padding-left: 32px;
            margin-bottom: 14px;
            color: var(--text-body);
            line-height: 1.7;
        }
        .split-text .feature-list li i {
            position: absolute;
            left: 0;
            top: 4px;
            color: var(--accent);
            font-size: 16px;
        }

        /* ===== Tech Tags ===== */
        .tech-tags {
            padding: clamp(3rem, 5vw, 4.5rem) 0;
            background: var(--bg-alt);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .tech-tags .section-head {
            text-align: center;
            margin-bottom: 40px;
        }
        .tech-tags .section-head .eyebrow {
            margin-bottom: 8px;
        }
        .tech-tags-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .tech-tag-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 24px;
            transition: var(--transition);
            display: flex;
            gap: 18px;
            align-items: flex-start;
        }
        .tech-tag-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(214, 179, 108, 0.3);
        }
        .tech-tag-icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--accent-dim);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }
        .tech-tag-card h3 {
            font-size: 16px;
            margin-bottom: 6px;
        }
        .tech-tag-card p {
            font-size: 13px;
            color: var(--text-low);
            margin: 0;
            line-height: 1.6;
        }

        /* ===== Scene Grid ===== */
        .scene-grid {
            padding: clamp(3.5rem, 6vw, 5.5rem) 0;
        }
        .scene-grid .section-head {
            text-align: center;
            margin-bottom: 40px;
        }
        .scene-grid .section-head .eyebrow {
            margin-bottom: 8px;
        }
        .scene-cards {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .scene-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 30px 24px;
            text-align: center;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .scene-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: var(--transition);
        }
        .scene-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .scene-card:hover::after {
            transform: scaleX(1);
        }
        .scene-card .scene-num {
            font-family: var(--font-en);
            font-size: 13px;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 12px;
            display: block;
            letter-spacing: 0.1em;
        }
        .scene-card i {
            font-size: 32px;
            color: var(--accent);
            margin-bottom: 14px;
        }
        .scene-card h3 {
            font-size: 16px;
            margin-bottom: 8px;
        }
        .scene-card p {
            font-size: 13px;
            color: var(--text-low);
            line-height: 1.6;
            margin: 0;
        }

        /* ===== Process Steps ===== */
        .process-steps {
            padding: clamp(3.5rem, 6vw, 5.5rem) 0;
            background: var(--bg-alt);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .process-steps .section-head {
            text-align: center;
            margin-bottom: 44px;
        }
        .process-steps .section-head .eyebrow {
            margin-bottom: 8px;
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .step-card {
            position: relative;
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 36px 24px 24px;
            transition: var(--transition);
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .step-card .step-number {
            font-family: var(--font-en);
            font-size: 40px;
            font-weight: 700;
            color: var(--accent-dim);
            line-height: 1;
            margin-bottom: 14px;
            display: block;
            transition: var(--transition);
        }
        .step-card:hover .step-number {
            color: var(--accent);
        }
        .step-card h3 {
            font-size: 16px;
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 13px;
            color: var(--text-low);
            margin: 0;
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: clamp(3.5rem, 6vw, 5.5rem) 0;
        }
        .faq-section .section-head {
            text-align: center;
            margin-bottom: 40px;
        }
        .faq-section .section-head .eyebrow {
            margin-bottom: 8px;
        }
        .accordion {
            max-width: 820px;
            margin: 0 auto;
        }
        .accordion-item {
            background: transparent;
            border: 1px solid var(--border);
            border-radius: var(--radius) !important;
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }
        .accordion-item:hover {
            border-color: rgba(214, 179, 108, 0.25);
        }
        .accordion-button {
            background: var(--surface);
            color: var(--text-hi);
            font-size: 15px;
            font-weight: 500;
            padding: 20px 24px;
            letter-spacing: 0.02em;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            box-shadow: none !important;
            border-radius: var(--radius) !important;
        }
        .accordion-button:not(.collapsed) {
            background: var(--surface);
            color: var(--accent);
        }
        .accordion-button::after {
            display: none;
        }
        .accordion-button .fa-plus {
            color: var(--accent);
            font-size: 14px;
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .accordion-button:not(.collapsed) .fa-plus {
            transform: rotate(45deg);
        }
        .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid rgba(214, 179, 108, 0.4);
        }
        .accordion-collapse {
            background: var(--surface);
        }
        .accordion-body {
            color: var(--text-body);
            font-size: 14px;
            line-height: 1.8;
            padding: 0 24px 20px;
            border-top: 1px solid var(--border);
            padding-top: 16px;
            background: var(--bg-alt);
        }

        /* ===== Related Cats ===== */
        .related-cats {
            padding: clamp(3rem, 5vw, 4.5rem) 0;
            background: var(--bg-alt);
            border-top: 1px solid var(--border);
        }
        .related-cats .section-head {
            text-align: center;
            margin-bottom: 36px;
        }
        .related-cats .section-head .eyebrow {
            margin-bottom: 8px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            max-width: 720px;
            margin: 0 auto;
        }
        .related-card {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 30px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
            gap: 16px;
        }
        .related-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent);
            transform: scaleX(0);
            transition: var(--transition);
            transform-origin: left;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(214, 179, 108, 0.25);
        }
        .related-card:hover::after {
            transform: scaleX(1);
        }
        .related-card .related-info {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .related-card .related-num {
            font-family: var(--font-en);
            font-size: 13px;
            color: var(--accent);
            font-weight: 600;
            letter-spacing: 0.1em;
        }
        .related-card h3 {
            font-size: 16px;
            margin: 0;
        }
        .related-card .related-arrow {
            color: var(--text-low);
            font-size: 18px;
            transition: var(--transition);
        }
        .related-card:hover .related-arrow {
            color: var(--accent);
            transform: translateX(4px);
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: clamp(4rem, 7vw, 6rem) 0;
            position: relative;
            overflow: hidden;
            background: linear-gradient(135deg, #0B0F18 0%, #141C2B 60%, #0D1320 100%);
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: 20%;
            right: 15%;
            width: 3px;
            height: 3px;
            border-radius: 50%;
            background: rgba(214, 179, 108, 0.6);
            box-shadow: 0 0 12px rgba(214, 179, 108, 0.5);
            animation: pulse 2.5s infinite;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            top: 60%;
            right: 40%;
            width: 2px;
            height: 2px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.3);
            animation: pulse 3.2s infinite 0.8s;
        }
        .cta-inner {
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }
        .cta-inner .eyebrow {
            margin-bottom: 10px;
        }
        .cta-inner h2 {
            margin-bottom: 16px;
            font-size: clamp(1.6rem, 3vw, 2.4rem);
        }
        .cta-inner p {
            color: var(--text-body);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 32px;
        }
        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        @keyframes pulse {
            0%,
            100% {
                opacity: 0.4;
                transform: scale(1);
            }
            50% {
                opacity: 1;
                transform: scale(1.6);
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #070A11;
            padding: 70px 0 0;
            border-top: 1px solid var(--border);
        }
        .site-footer .footer-brand .brand-logo {
            margin-bottom: 18px;
        }
        .footer-desc {
            color: var(--text-low);
            font-size: 14px;
            line-height: 1.8;
            max-width: 360px;
            margin: 0;
        }
        .footer-heading {
            font-size: 16px;
            color: var(--text-hi);
            margin-bottom: 20px;
            font-weight: 600;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: var(--text-body);
            font-size: 14px;
            line-height: 1.6;
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-contact div {
            color: var(--text-body);
            font-size: 14px;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
            line-height: 1.6;
        }
        .footer-contact i {
            color: var(--accent);
            width: 20px;
            text-align: center;
            flex-shrink: 0;
        }
        .footer-bottom {
            margin-top: 50px;
            padding: 22px 0;
            border-top: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-low);
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-bottom .beian a {
            color: var(--text-low);
        }
        .footer-bottom .beian a:hover {
            color: var(--accent);
        }

        /* ===== Reveal ===== */
        [data-reveal] {
            opacity: 0;
            transform: translateY(16px);
            transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }
        [data-reveal].revealed {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1199.98px) {
            .channel-nav {
                gap: 20px;
            }
            .tech-tags-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scene-cards {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 991.98px) {
            .split-section .split-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .split-section.reverse .split-inner {
                direction: ltr;
            }
            .split-media {
                order: -1;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 767.98px) {
            .site-header .nav-channel-row {
                display: none;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .nav-phone {
                display: none;
            }
            .nav-brand-row {
                height: 60px;
            }
            .site-header.scrolled .nav-brand-row {
                height: 60px;
            }
            .category-hero {
                padding: 120px 0 48px;
                min-height: 280px;
            }
            .tech-tags-grid {
                grid-template-columns: 1fr;
            }
            .scene-cards {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            .cta-buttons .btn {
                width: 100%;
                justify-content: center;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 575.98px) {
            .brand-logo {
                font-size: 19px;
            }
            .nav-search {
                display: none;
            }
            .category-hero h1 {
                font-size: 1.9rem;
            }
            .split-media img {
                min-height: 220px;
            }
            .scene-card {
                padding: 24px 18px;
            }
            .step-card {
                padding: 28px 18px 20px;
            }
        }

/* roulang page: category3 */
/* ========== 设计变量 ========== */
        :root {
            --bg: #0B0F18;
            --bg-alt: #101623;
            --surface: #141C2B;
            --surface-hover: #1A2436;
            --border: rgba(255, 255, 255, 0.08);
            --border-strong: rgba(255, 255, 255, 0.16);
            --text-hi: #F1F0EC;
            --text-body: #B7BFCF;
            --text-low: #7D8899;
            --accent: #D6B36C;
            --accent-strong: #E7C684;
            --accent-dim: rgba(214, 179, 108, 0.14);
            --info: #80A9C6;
            --danger: #E0777D;
            --radius-card: 14px;
            --radius-btn: 6px;
            --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 10px 30px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(214, 179, 108, 0.18);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        /* ========== 基础 Reset ========== */
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-body);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        h1, h2, h3, h4, h5, h6 {
            font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
            color: var(--text-hi);
            letter-spacing: 0.02em;
            margin: 0 0 0.5em;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-strong);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
        }
        ul, ol {
            padding: 0;
            margin: 0;
            list-style: none;
        }
        p {
            margin: 0 0 1rem;
        }
        :focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ========== 容器 ========== */
        .container {
            max-width: 1280px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        .section {
            padding: clamp(3.5rem, 7vw, 6rem) 0;
            position: relative;
        }

        /* ========== 眉题 ========== */
        .kicker {
            display: inline-block;
            font-family: "Archivo", "Helvetica Neue", sans-serif;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.14em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 0.8rem;
        }
        .section-title {
            font-size: clamp(1.4rem, 2.4vw, 2rem);
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 1.2rem;
        }
        .section-desc {
            color: var(--text-body);
            max-width: 640px;
            margin-bottom: 2.5rem;
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            font-size: 14px;
            font-weight: 700;
            line-height: 1.4;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: 1px solid transparent;
            transition: var(--transition);
            letter-spacing: 0.02em;
        }
        .btn-primary {
            background: var(--accent);
            color: #0B0F18;
            border-color: var(--accent);
        }
        .btn-primary:hover, .btn-primary:focus {
            background: var(--accent-strong);
            border-color: var(--accent-strong);
            color: #0B0F18;
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(1px);
            background: var(--accent);
            border-color: var(--accent);
            color: #0B0F18;
        }
        .btn-outline {
            background: transparent;
            color: var(--accent);
            border-color: var(--accent);
        }
        .btn-outline:hover {
            background: var(--accent-dim);
            color: var(--accent-strong);
            border-color: var(--accent-strong);
        }

        /* ========== Header / 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(11, 15, 24, 0.9);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .site-header .nav-inner {
            display: flex;
            flex-direction: column;
        }
        .nav-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 56px;
            transition: var(--transition);
        }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-family: "Noto Serif SC", serif;
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-hi);
            letter-spacing: 0.03em;
        }
        .brand-logo i {
            color: var(--accent);
            font-size: 1.15rem;
        }
        .brand-logo:hover {
            color: var(--text-hi);
        }
        .nav-tools {
            display: flex;
            align-items: center;
            gap: 1rem;
        }
        .nav-search {
            background: none;
            border: none;
            color: var(--text-body);
            font-size: 1rem;
            padding: 0.3rem 0.5rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-search:hover {
            color: var(--accent);
        }
        .nav-phone {
            font-size: 13px;
            color: var(--text-body);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            transition: var(--transition);
        }
        .nav-phone:hover {
            color: var(--accent);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-hi);
            font-size: 1.2rem;
            cursor: pointer;
            padding: 0.3rem;
        }
        .nav-channel-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 48px;
            border-top: 1px solid var(--border);
            gap: 1rem;
            transition: var(--transition);
        }
        .channel-nav {
            display: flex;
            align-items: center;
            gap: 1.8rem;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
        }
        .channel-nav::-webkit-scrollbar {
            display: none;
        }
        .channel-nav a {
            font-size: 14px;
            color: var(--text-body);
            white-space: nowrap;
            padding: 0.4rem 0;
            position: relative;
            font-weight: 500;
        }
        .channel-nav a::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: var(--transition);
        }
        .channel-nav a:hover {
            color: var(--text-hi);
        }
        .channel-nav a.active {
            color: var(--accent);
        }
        .channel-nav a.active::after {
            transform: scaleX(1);
        }
        .hot-pills {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
        }
        .hot-pills a {
            display: inline-block;
            font-size: 12px;
            color: var(--text-low);
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 3px 14px;
            white-space: nowrap;
            transition: var(--transition);
        }
        .hot-pills a:hover {
            color: var(--accent);
            border-color: var(--accent);
            background: var(--accent-dim);
        }
        /* 导航收缩 */
        .site-header.scrolled {
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
        }
        .site-header.scrolled .nav-brand-row {
            height: 48px;
        }
        .site-header.scrolled .nav-channel-row {
            height: 40px;
        }
        @media (max-width: 991px) {
            .site-header.scrolled .nav-brand-row {
                height: 56px;
            }
            .site-header.scrolled .nav-channel-row {
                height: 48px;
            }
        }
        /* 移动端导航抽屉 */
        @media (max-width: 767px) {
            .site-header .nav-inner {
                flex-direction: row;
                align-items: center;
                justify-content: space-between;
                flex-wrap: wrap;
            }
            .nav-toggle {
                display: block;
            }
            .nav-phone {
                display: none;
            }
            .nav-channel-row {
                display: none;
                position: fixed;
                top: 0;
                right: 0;
                width: 280px;
                height: 100vh !important;
                background: var(--bg);
                border-left: 1px solid var(--border);
                border-top: none;
                flex-direction: column;
                align-items: flex-start;
                justify-content: flex-start;
                padding: 2rem 1.5rem;
                gap: 1.5rem;
                z-index: 1100;
                box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
                overflow-y: auto;
            }
            .nav-channel-row.open {
                display: flex;
            }
            .channel-nav {
                flex-direction: column;
                align-items: flex-start;
                gap: 1.2rem;
                width: 100%;
            }
            .channel-nav a {
                font-size: 15px;
            }
            .hot-pills {
                flex-wrap: wrap;
                margin-top: 1rem;
            }
            .nav-tools {
                gap: 0.5rem;
            }
        }
        /* 桌面端第一行在平板隐藏电话 */
        @media (max-width: 991px) {
            .nav-phone {
                display: none;
            }
        }

        /* ========== Hero ========== */
        .category-hero {
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            padding: 5rem 0;
            border-bottom: 1px solid var(--border);
        }
        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 15, 24, 0.55) 0%, rgba(11, 15, 24, 0.82) 100%);
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .category-hero .kicker {
            color: var(--accent-strong);
        }
        .category-hero h1 {
            font-size: clamp(2rem, 4.2vw, 3.2rem);
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 0.8rem;
        }
        .category-hero .hero-desc {
            color: var(--text-body);
            font-size: 16px;
            line-height: 1.8;
            max-width: 640px;
            margin-bottom: 1.8rem;
        }
        .category-hero .hero-actions {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        /* ========== 图文分栏 ========== */
        .split-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: clamp(2rem, 4vw, 4rem);
            align-items: center;
        }
        .split-block.reverse .split-img {
            order: 2;
        }
        .split-block.reverse .split-content {
            order: 1;
        }
        .split-img {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .split-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-card);
            transition: var(--transition);
        }
        .split-img:hover img {
            transform: scale(1.03);
        }
        .split-content .topic-list {
            margin-top: 1.2rem;
        }
        .topic-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.7rem;
            padding: 0.65rem 0;
            border-bottom: 1px solid var(--border);
            color: var(--text-body);
            font-size: 15px;
        }
        .topic-list li:last-child {
            border-bottom: none;
        }
        .topic-list li i {
            color: var(--accent);
            font-size: 14px;
            margin-top: 0.35rem;
        }
        .topic-list li strong {
            color: var(--text-hi);
            font-weight: 600;
        }

        /* ========== 适用人群卡片 ========== */
        .audience-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
            margin-top: 2rem;
        }
        .audience-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 1.8rem;
            transition: var(--transition);
        }
        .audience-card:hover {
            background: var(--surface-hover);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .audience-card .icon {
            width: 48px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--accent-dim);
            color: var(--accent);
            border-radius: 12px;
            font-size: 1.2rem;
            margin-bottom: 1rem;
        }
        .audience-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }
        .audience-card p {
            font-size: 14px;
            color: var(--text-body);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ========== 学习路径流程 ========== */
        .path-section {
            background: var(--bg-alt);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .path-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            margin-top: 2rem;
        }
        .path-step {
            position: relative;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 2rem 1.5rem 1.5rem;
            transition: var(--transition);
        }
        .path-step:hover {
            border-color: rgba(214, 179, 108, 0.35);
            background: var(--surface-hover);
            transform: translateY(-4px);
        }
        .path-step .step-num {
            font-family: "Archivo", sans-serif;
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent);
            line-height: 1;
            opacity: 0.8;
            margin-bottom: 0.8rem;
        }
        .path-step h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-hi);
            margin-bottom: 0.4rem;
        }
        .path-step p {
            font-size: 13px;
            color: var(--text-low);
            line-height: 1.65;
            margin-bottom: 0;
        }
        .path-step::after {
            content: "\f054";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            top: 50%;
            right: -1.1rem;
            transform: translateY(-50%);
            color: var(--accent);
            font-size: 12px;
            z-index: 2;
            opacity: 0.6;
        }
        .path-step:last-child::after {
            display: none;
        }

        /* ========== 数据统计 ========== */
        .stats-section {
            background: var(--bg);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .stat-card {
            text-align: center;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 2.5rem 1.5rem;
            transition: var(--transition);
        }
        .stat-card:hover {
            border-color: rgba(214, 179, 108, 0.3);
            transform: translateY(-4px);
        }
        .stat-card .stat-num {
            font-family: "Archivo", sans-serif;
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 0.3rem;
        }
        .stat-card .stat-label {
            font-size: 14px;
            color: var(--text-body);
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--bg-alt);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .faq-accordion {
            max-width: 820px;
        }
        .accordion-item {
            background: transparent;
            border: none;
            border-bottom: 1px solid var(--border);
        }
        .accordion-button {
            background: transparent;
            color: var(--text-hi);
            font-size: 15px;
            font-weight: 500;
            padding: 1rem 0;
            box-shadow: none;
            border-radius: 0 !important;
        }
        .accordion-button:not(.collapsed) {
            background: transparent;
            color: var(--accent);
        }
        .accordion-button:focus {
            box-shadow: none;
        }
        .accordion-button::after {
            content: "\f067";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            background-image: none;
            font-size: 13px;
            color: var(--accent);
            transition: var(--transition);
        }
        .accordion-button:not(.collapsed)::after {
            content: "\f068";
            background-image: none;
            color: var(--accent);
            transform: none;
        }
        .accordion-body {
            color: var(--text-body);
            font-size: 14px;
            line-height: 1.75;
            padding: 0 0 1.5rem;
        }

        /* ========== CTA ========== */
        .cta-section {
            position: relative;
            background: var(--bg);
            padding: clamp(3.5rem, 7vw, 6rem) 0;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: -40%;
            left: 50%;
            transform: translateX(-50%);
            width: 800px;
            height: 800px;
            background: radial-gradient(circle, rgba(214, 179, 108, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: clamp(1.5rem, 2.6vw, 2.2rem);
            margin-bottom: 0.8rem;
        }
        .cta-inner p {
            color: var(--text-body);
            margin-bottom: 2rem;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .cta-dot {
            position: absolute;
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--accent);
            opacity: 0.4;
            animation: breathe 3s ease-in-out infinite;
        }
        .cta-dot:nth-child(1) { top: 15%; left: 12%; animation-delay: 0s; }
        .cta-dot:nth-child(2) { top: 30%; right: 15%; animation-delay: 1s; }
        .cta-dot:nth-child(3) { bottom: 25%; left: 20%; animation-delay: 0.5s; }
        .cta-dot:nth-child(4) { bottom: 15%; right: 25%; animation-delay: 1.5s; }
        @keyframes breathe {
            0%, 100% { opacity: 0.2; transform: scale(0.8); }
            50% { opacity: 1; transform: scale(1.4); }
        }

        /* ========== 相关分类入口 ========== */
        .related-cats {
            padding: 2rem 0 0;
        }
        .related-cats .card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: var(--transition);
            text-decoration: none;
            color: var(--text-hi);
            margin-bottom: 1rem;
        }
        .related-cats .card:hover {
            background: var(--surface-hover);
            border-color: rgba(214, 179, 108, 0.3);
            transform: translateY(-3px);
        }
        .related-cats .card .cat-name {
            font-size: 1rem;
            font-weight: 600;
        }
        .related-cats .card .cat-count {
            font-size: 13px;
            color: var(--text-low);
        }
        .related-cats .card i {
            color: var(--accent);
            font-size: 14px;
            transition: var(--transition);
        }
        .related-cats .card:hover i {
            transform: translateX(4px);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #070A11;
            border-top: 1px solid var(--border);
            padding: clamp(3rem, 5vw, 4rem) 0 0;
        }
        .site-footer .brand-logo {
            margin-bottom: 0.8rem;
            display: inline-flex;
        }
        .footer-desc {
            font-size: 14px;
            color: var(--text-low);
            max-width: 360px;
            line-height: 1.7;
            margin-bottom: 1rem;
        }
        .footer-heading {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-hi);
            margin-bottom: 1rem;
        }
        .footer-links li {
            margin-bottom: 0.5rem;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--text-body);
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-contact div {
            font-size: 14px;
            color: var(--text-body);
            display: flex;
            align-items: center;
            gap: 0.6rem;
            margin-bottom: 0.5rem;
        }
        .footer-contact i {
            color: var(--accent);
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.8rem;
            border-top: 1px solid var(--border);
            padding: 1.5rem 0;
            margin-top: 2rem;
            font-size: 13px;
            color: var(--text-low);
        }
        .footer-bottom a {
            color: var(--text-low);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ========== 滚动进场 ========== */
        [data-reveal] {
            opacity: 0;
            transform: translateY(16px);
            transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }
        [data-reveal].visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 991px) {
            .split-block,
            .split-block.reverse {
                grid-template-columns: 1fr;
            }
            .split-block.reverse .split-img {
                order: 1;
            }
            .split-block.reverse .split-content {
                order: 2;
            }
            .path-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .path-step::after {
                display: none;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .audience-grid {
                grid-template-columns: 1fr;
            }
            .site-header.scrolled .nav-channel-row {
                display: none;
            }
        }
        @media (max-width: 767px) {
            .category-hero {
                min-height: 280px;
                padding: 3rem 0;
            }
            .category-hero h1 {
                font-size: 1.9rem;
            }
            .path-steps {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .cta-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .cta-actions .btn {
                width: 100%;
            }
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
            }
        }