/* roulang page: index */
/* ========== Root 设计变量 ========== */
        :root {
            --brand: #C8F04D;
            --brand-light: #DAF56E;
            --brand-dark: #9FBD38;
            --accent: #D97941;
            --dark-bg: #0B100E;
            --dark-bg-2: #131A17;
            --dark-border: #1F2622;
            --light-bg: #F4F3F0;
            --light-bg-2: #FFFFFF;
            --light-border: #D8D6CF;
            --text-on-dark: #F2F1EA;
            --text-muted-dark: #A6B0AA;
            --text-on-light: #141916;
            --text-muted-light: #6B726E;
            --radius-card: 12px;
            --radius-sm: 8px;
            --radius-btn: 999px;
            --shadow-card: 0 2px 8px rgba(11, 16, 14, 0.06);
            --shadow-hover: 0 8px 24px rgba(11, 16, 14, 0.12);
            --font-main: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --section-space: 96px;
            --transition-base: all 0.25s ease;
        }

        /* ========== Reset / Base ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-on-light);
            background-color: var(--light-bg);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

        button {
            border: none;
            background: none;
            font-family: inherit;
            cursor: pointer;
        }

        input,
        textarea {
            font-family: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        /* ========== Container ========== */
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ========== 排版 ========== */
        h1,
        h2,
        h3,
        h4 {
            line-height: 1.25;
            font-weight: 800;
            color: var(--text-on-light);
        }

        h1 {
            font-size: 64px;
            letter-spacing: -1px;
        }

        h2 {
            font-size: 40px;
            letter-spacing: -0.5px;
        }

        h3 {
            font-size: 20px;
            font-weight: 700;
        }

        p {
            color: var(--text-muted-light);
        }

        .section-eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 10px;
            padding: 4px 14px;
            border: 1px solid rgba(217, 121, 65, 0.35);
            border-radius: var(--radius-btn);
            background: rgba(217, 121, 65, 0.06);
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 48px;
            gap: 20px;
            flex-wrap: wrap;
        }

        .section-head h2 {
            margin-bottom: 0;
        }

        .section-link {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-muted-light);
            border-bottom: 2px solid var(--brand);
            padding-bottom: 4px;
            transition: var(--transition-base);
        }

        .section-link:hover {
            color: var(--brand-dark);
            border-color: var(--brand-dark);
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            line-height: 1;
            padding: 14px 32px;
            border: 2px solid transparent;
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .btn-brand {
            background-color: var(--brand);
            color: #0B100E;
            border-color: var(--brand);
        }

        .btn-brand:hover {
            background-color: var(--brand-light);
            border-color: var(--brand-light);
            color: #0B100E;
            transform: translateY(-2px);
        }

        .btn-ghost {
            background: transparent;
            border-color: rgba(242, 241, 234, 0.4);
            color: var(--text-on-dark);
        }

        .btn-ghost:hover {
            border-color: var(--brand);
            color: var(--brand);
            background: rgba(200, 240, 77, 0.08);
            transform: translateY(-2px);
        }

        .btn-dark-outline {
            border-color: var(--light-border);
            color: var(--text-on-light);
            background: transparent;
        }

        .btn-dark-outline:hover {
            border-color: var(--brand-dark);
            color: var(--brand-dark);
            background: rgba(200, 240, 77, 0.06);
            transform: translateY(-2px);
        }

        .btn-lg {
            padding: 16px 40px;
            font-size: 16px;
        }

        .btn:focus-visible,
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(200, 240, 77, 0.6);
            outline-offset: 2px;
        }

        /* ========== 导航栏 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1030;
            background: rgba(11, 16, 14, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(31, 38, 34, 0.6);
            transition: var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(11, 16, 14, 0.97);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }

        .custom-nav {
            padding-top: 14px;
            padding-bottom: 14px;
        }

        .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-on-dark);
            letter-spacing: 0.5px;
        }

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

        .brand-mark {
            display: inline-block;
            width: 28px;
            height: 28px;
            border-radius: 10px;
            background: var(--brand);
            position: relative;
            flex-shrink: 0;
        }

        .brand-mark::after {
            content: '';
            position: absolute;
            top: 7px;
            left: 7px;
            width: 14px;
            height: 14px;
            border-radius: 4px;
            background: var(--dark-bg);
        }

        .custom-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted-dark);
            padding: 8px 16px;
            position: relative;
            transition: var(--transition-base);
        }

        .custom-nav .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--brand);
            border-radius: 2px;
            transition: var(--transition-base);
        }

        .custom-nav .nav-link:hover {
            color: var(--text-on-dark);
        }

        .custom-nav .nav-link:hover::after {
            width: 24px;
        }

        .custom-nav .nav-link.active {
            color: var(--brand);
            font-weight: 600;
        }

        .custom-nav .nav-link.active::after {
            width: 24px;
        }

        .nav-cta {
            padding: 10px 28px;
            font-size: 14px;
            border-radius: var(--radius-btn);
        }

        .custom-toggler {
            border: none;
            padding: 8px;
            display: flex;
            flex-direction: column;
            gap: 5px;
            background: transparent;
        }

        .toggler-line {
            display: block;
            width: 26px;
            height: 2px;
            background: var(--brand);
            border-radius: 2px;
            transition: var(--transition-base);
        }

        .custom-toggler[aria-expanded="true"] .toggler-line:first-child {
            transform: translateY(3.5px) rotate(45deg);
        }

        .custom-toggler[aria-expanded="true"] .toggler-line:last-child {
            transform: translateY(-3.5px) rotate(-45deg);
        }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, rgba(11, 16, 14, 0.95) 0%, rgba(11, 16, 14, 0.78) 55%, rgba(11, 16, 14, 0.58) 100%),
                url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            padding-top: 120px;
            padding-bottom: 80px;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            bottom: 0;
            right: 0;
            width: 480px;
            height: 480px;
            background: radial-gradient(circle at bottom right, rgba(200, 240, 77, 0.08), transparent 70%);
            pointer-events: none;
        }

        .hero-content {
            max-width: 720px;
            animation: heroFadeIn 0.6s ease both;
        }

        @keyframes heroFadeIn {
            from {
                opacity: 0;
                transform: translateY(12px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 1px;
            color: var(--brand);
            margin-bottom: 20px;
            padding: 6px 16px;
            border: 1px solid rgba(200, 240, 77, 0.35);
            border-radius: var(--radius-btn);
            background: rgba(200, 240, 77, 0.06);
        }

        .hero-eyebrow::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--brand);
        }

        .hero h1 {
            color: var(--text-on-dark);
            font-size: 64px;
            line-height: 1.15;
            margin-bottom: 24px;
        }

        .hero h1 .highlight {
            color: var(--brand);
        }

        .hero-subtitle {
            font-size: 18px;
            line-height: 1.8;
            color: var(--text-muted-dark);
            max-width: 560px;
            margin-bottom: 40px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-decor {
            position: absolute;
            bottom: 80px;
            right: 6%;
            display: flex;
            align-items: flex-end;
            gap: 4px;
            opacity: 0.5;
            pointer-events: none;
        }

        .hero-decor span {
            display: block;
            width: 4px;
            border-radius: 4px;
            background: var(--brand);
        }

        .hero-decor span:nth-child(1) { height: 24px; }
        .hero-decor span:nth-child(2) { height: 40px; }
        .hero-decor span:nth-child(3) { height: 56px; }
        .hero-decor span:nth-child(4) { height: 72px; }
        .hero-decor span:nth-child(5) { height: 88px; }
        .hero-decor span:nth-child(6) { height: 64px; }
        .hero-decor span:nth-child(7) { height: 48px; }
        .hero-decor span:nth-child(8) { height: 32px; }
        .hero-decor span:nth-child(9) { height: 20px; }

        .hero-bottom-line {
            position: absolute;
            bottom: 28px;
            left: 0;
            right: 0;
            display: flex;
            justify-content: center;
            pointer-events: none;
            opacity: 0.7;
        }

        .hero-bottom-line::before {
            content: '';
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            width: 1px;
            height: 20px;
            background: linear-gradient(to bottom, transparent, var(--accent));
        }

        .hero-bottom-line span {
            font-size: 13px;
            letter-spacing: 4px;
            color: var(--accent);
            font-weight: 500;
        }

        /* ========== Section 通用 ========== */
        .section {
            padding-top: var(--section-space);
            padding-bottom: var(--section-space);
        }

        .section-dark {
            background-color: var(--dark-bg);
            color: var(--text-on-dark);
        }

        .section-dark h2 {
            color: var(--text-on-dark);
        }

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

        /* ========== 品牌故事 ========== */
        .brand-story {
            background: var(--light-bg);
        }

        .story-mark {
            font-size: 72px;
            font-weight: 800;
            line-height: 0.6;
            color: var(--brand-dark);
            opacity: 0.4;
            margin-bottom: 16px;
            display: block;
        }

        .brand-story h2 {
            font-size: 40px;
            line-height: 1.25;
            margin-bottom: 24px;
            color: var(--text-on-light);
        }

        .story-text {
            font-size: 17px;
            line-height: 2;
            color: var(--text-muted-light);
            max-width: 520px;
            margin-bottom: 0;
        }

        .story-divider {
            width: 60px;
            height: 3px;
            background: var(--brand);
            border-radius: 4px;
            margin: 28px 0;
        }

        .story-stats-panel {
            background: var(--dark-bg);
            border-radius: 16px;
            padding: 48px 40px;
            position: relative;
            overflow: hidden;
            border: 1px solid var(--dark-border);
        }

        .story-stats-panel::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 120px;
            height: 120px;
            background: rgba(200, 240, 77, 0.15);
            border-radius: 50%;
            pointer-events: none;
        }

        .metric-item {
            padding: 20px 0;
            border-bottom: 1px solid rgba(31, 38, 34, 0.8);
        }

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

        .metric-num {
            font-size: 48px;
            font-weight: 800;
            color: var(--brand);
            line-height: 1.1;
            display: block;
            letter-spacing: -1px;
        }

        .metric-label {
            font-size: 14px;
            color: var(--text-muted-dark);
            margin-top: 6px;
            display: block;
            letter-spacing: 1px;
        }

        /* ========== 最新资讯列表 ========== */
        .news-section {
            background: var(--dark-bg);
            position: relative;
        }

        .news-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(to right, var(--brand), transparent 40%);
            opacity: 0.3;
        }

        .news-section .section-head h2 {
            color: var(--text-on-dark);
        }

        .news-section .section-link {
            color: var(--text-muted-dark);
        }

        .news-section .section-link:hover {
            color: var(--brand);
        }

        .news-list {
            max-width: 900px;
            margin: 0 auto;
        }

        .news-item {
            display: block;
            padding: 32px 24px;
            border-bottom: 1px solid rgba(31, 38, 34, 0.7);
            border-radius: var(--radius-card);
            transition: var(--transition-base);
            position: relative;
        }

        .news-item:first-child {
            border-top: none;
        }

        .news-item:hover {
            background: rgba(200, 240, 77, 0.04);
            padding-left: 36px;
        }

        .news-item-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 14px;
            flex-wrap: wrap;
            gap: 8px;
        }

        .news-cat {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--text-on-dark);
            padding: 3px 12px;
            border: 1px solid rgba(200, 240, 77, 0.45);
            border-radius: var(--radius-btn);
            background: rgba(200, 240, 77, 0.08);
            letter-spacing: 0.5px;
        }

        .news-date {
            font-size: 13px;
            color: var(--accent);
            font-weight: 500;
        }

        .news-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-on-dark);
            margin-bottom: 10px;
            line-height: 1.4;
            transition: var(--transition-base);
        }

        .news-item:hover .news-title {
            color: var(--brand);
        }

        .news-summary {
            font-size: 14px;
            color: var(--text-muted-dark);
            margin-bottom: 12px;
            line-height: 1.8;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--brand);
        }

        .news-empty {
            padding: 60px 24px;
            text-align: center;
            border: 1px dashed rgba(31, 38, 34, 0.8);
            border-radius: var(--radius-card);
            background: rgba(11, 16, 14, 0.6);
        }

        .news-empty-icon {
            display: block;
            font-size: 48px;
            color: var(--brand);
            margin-bottom: 12px;
            opacity: 0.7;
        }

        .news-empty p {
            color: var(--text-muted-dark);
            font-size: 16px;
        }

        /* ========== 精选内容卡片 ========== */
        .featured-section {
            background: var(--light-bg);
        }

        .featured-grid {
            display: flex;
            flex-wrap: wrap;
            margin: -16px;
        }

        .featured-grid > div {
            padding: 16px;
        }

        .featured-card {
            display: block;
            background: var(--light-bg-2);
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--light-border);
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            height: 100%;
        }

        .featured-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(200, 240, 77, 0.6);
        }

        .featured-card .card-cover {
            overflow: hidden;
            position: relative;
            aspect-ratio: 16 / 9;
        }

        .featured-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }

        .featured-card:hover .card-cover img {
            transform: scale(1.04);
        }

        .card-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            font-size: 12px;
            font-weight: 600;
            color: var(--text-on-dark);
            padding: 4px 14px;
            background: var(--accent);
            border-radius: var(--radius-btn);
            letter-spacing: 0.5px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
        }

        .featured-card .card-body {
            padding: 24px;
        }

        .featured-card .card-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-on-light);
            margin-bottom: 12px;
            line-height: 1.45;
        }

        .featured-card .card-body p {
            font-size: 14px;
            color: var(--text-muted-light);
            margin-bottom: 16px;
            line-height: 1.8;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
        }

        .card-date {
            font-size: 13px;
            color: var(--accent);
            font-weight: 500;
        }

        .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--brand-dark);
            transition: var(--transition-base);
        }

        .featured-card:hover .card-link {
            transform: translateX(2px);
            color: var(--brand-dark);
        }

        .featured-sub .card-body h3 {
            font-size: 17px;
        }

        .featured-sub .card-cover {
            aspect-ratio: 16 / 8;
        }

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

        /* ========== 信任背书区 ========== */
        .trust-section {
            background: var(--dark-bg);
            position: relative;
            overflow: hidden;
        }

        .trust-section::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -100px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(200, 240, 77, 0.04);
            pointer-events: none;
        }

        .trust-quote {
            padding-left: 28px;
            border-left: 3px solid var(--brand);
        }

        .trust-quote blockquote {
            font-size: 22px;
            line-height: 1.7;
            color: var(--text-on-dark);
            font-weight: 600;
            margin-bottom: 16px;
        }

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

        .trust-quote cite::before {
            content: '— ';
            color: var(--accent);
        }

        .trust-data {
            background: rgba(11, 16, 14, 0.6);
            border: 1px solid var(--dark-border);
            border-radius: var(--radius-card);
            padding: 32px;
        }

        .data-row {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            padding: 14px 0;
            border-bottom: 1px solid rgba(31, 38, 34, 0.8);
            gap: 12px;
        }

        .data-row:last-child {
            border-bottom: none;
        }

        .data-row span {
            font-size: 14px;
            color: var(--text-muted-dark);
        }

        .data-row strong {
            font-size: 28px;
            font-weight: 800;
            color: var(--brand);
            min-width: 80px;
            text-align: right;
        }

        .partner-label {
            font-size: 13px;
            color: var(--text-muted-dark);
            letter-spacing: 2px;
            text-transform: uppercase;
            display: block;
            margin-bottom: 16px;
        }

        .trust-partners ul li {
            font-size: 15px;
            color: var(--text-on-dark);
            padding: 10px 0;
            border-bottom: 1px solid rgba(31, 38, 34, 0.6);
            font-weight: 500;
            transition: var(--transition-base);
        }

        .trust-partners ul li:last-child {
            border-bottom: none;
        }

        .trust-partners ul li:hover {
            color: var(--brand);
            padding-left: 8px;
        }

        .trust-partners ul li::before {
            content: '♪ ';
            color: var(--accent);
            font-size: 14px;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--light-bg);
        }

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--light-border);
            border-radius: var(--radius-card);
            margin-bottom: 16px;
            background: var(--light-bg-2);
            transition: var(--transition-base);
            overflow: hidden;
        }

        .faq-item.open {
            border-color: rgba(200, 240, 77, 0.6);
            box-shadow: var(--shadow-card);
        }

        .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 22px 28px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-on-light);
            text-align: left;
            background: transparent;
            transition: var(--transition-base);
            gap: 16px;
        }

        .faq-q .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            border: 2px solid var(--light-border);
            position: relative;
            transition: var(--transition-base);
        }

        .faq-q .faq-icon::before,
        .faq-q .faq-icon::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            background: var(--text-muted-light);
            transition: var(--transition-base);
        }

        .faq-q .faq-icon::before {
            width: 10px;
            height: 2px;
            transform: translate(-50%, -50%);
        }

        .faq-q .faq-icon::after {
            width: 2px;
            height: 10px;
            transform: translate(-50%, -50%);
        }

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

        .faq-item.open .faq-q {
            color: var(--brand-dark);
        }

        .faq-item.open .faq-q .faq-icon {
            border-color: var(--brand);
        }

        .faq-item.open .faq-q .faq-icon::after {
            transform: translate(-50%, -50%) rotate(45deg);
            opacity: 0;
        }

        .faq-item.open .faq-q .faq-icon::before {
            background: var(--brand);
        }

        .faq-a-wrap {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.25s ease;
        }

        .faq-a-wrap.open {
            max-height: 300px;
        }

        .faq-a {
            padding: 0 28px 24px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-muted-light);
        }

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

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(to right, transparent, var(--brand), transparent);
            opacity: 0.3;
        }

        .cta-inner {
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }

        .cta-inner h2 {
            color: var(--text-on-dark);
            font-size: 36px;
            margin-bottom: 16px;
        }

        .cta-inner > p {
            color: var(--text-muted-dark);
            font-size: 16px;
            margin-bottom: 36px;
        }

        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 520px;
            margin: 0 auto;
            flex-wrap: wrap;
        }

        .cta-form input {
            flex: 1;
            min-width: 200px;
            padding: 14px 22px;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(242, 241, 234, 0.25);
            background: rgba(11, 16, 14, 0.6);
            color: var(--text-on-dark);
            font-size: 15px;
            transition: var(--transition-base);
        }

        .cta-form input::placeholder {
            color: var(--text-muted-dark);
        }

        .cta-form input:focus {
            outline: none;
            border-color: var(--brand);
            box-shadow: 0 0 0 3px rgba(200, 240, 77, 0.15);
        }

        .cta-form .btn {
            min-width: 120px;
        }

        .cta-note {
            font-size: 13px;
            color: var(--text-muted-dark);
            margin-top: 18px;
            opacity: 0.8;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #080D0B;
            color: var(--text-muted-dark);
            padding-top: 72px;
            padding-bottom: 32px;
            border-top: 1px solid rgba(31, 38, 34, 0.5);
        }

        .footer-brand {
            font-size: 24px;
            font-weight: 800;
            color: var(--text-on-dark);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

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

        .footer-slogan {
            font-size: 15px;
            color: var(--text-muted-dark);
            margin-top: 14px;
            max-width: 260px;
            line-height: 1.7;
        }

        .site-footer h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-on-dark);
            margin-bottom: 18px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .site-footer .footer-links li {
            margin-bottom: 10px;
        }

        .site-footer .footer-links a {
            font-size: 14px;
            color: var(--text-muted-dark);
            transition: var(--transition-base);
        }

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

        .contact-list li {
            display: flex;
            gap: 14px;
            font-size: 14px;
            color: var(--text-muted-dark);
            margin-bottom: 12px;
            align-items: baseline;
        }

        .contact-list li span {
            color: var(--text-on-dark);
            font-weight: 600;
            min-width: 40px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(31, 38, 34, 0.7);
            margin-top: 48px;
            padding-top: 24px;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--text-muted-dark);
            margin: 0;
        }

        /* ========== 动效 ========== */
        @media (prefers-reduced-motion: no-preference) {
            .hero-content {
                animation-duration: 0.6s;
            }
        }

        /* ========== 响应式 ========== */
        @media (max-width: 991px) {
            :root {
                --section-space: 72px;
            }

            h1 {
                font-size: 44px;
            }

            h2 {
                font-size: 32px;
            }

            .custom-nav .navbar-collapse {
                background: var(--dark-bg);
                padding: 20px;
                border-radius: var(--radius-card);
                margin-top: 14px;
                border: 1px solid var(--dark-border);
                box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
            }

            .custom-nav .nav-link {
                font-size: 18px;
                padding: 12px 8px;
                color: var(--text-on-dark);
            }

            .custom-nav .nav-link.active {
                color: var(--brand);
            }

            .custom-nav .nav-link::after {
                left: 8px;
                transform: none;
                width: 24px;
            }

            .custom-nav .nav-link:hover::after {
                width: 24px;
            }

            .custom-nav .nav-link.active::after {
                width: 24px;
            }

            .custom-nav .nav-cta {
                margin-top: 16px;
                width: 100%;
                justify-content: center;
            }
        }

        @media (max-width: 767px) {
            :root {
                --section-space: 56px;
            }

            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            h1 {
                font-size: 36px;
            }

            h2 {
                font-size: 26px;
            }

            .hero {
                min-height: auto;
                padding-top: 120px;
                padding-bottom: 100px;
            }

            .hero-subtitle {
                font-size: 16px;
            }

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

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

            .hero-decor {
                display: none;
            }

            .story-stats-panel {
                padding: 32px 24px;
            }

            .metric-num {
                font-size: 36px;
            }

            .news-item {
                padding: 24px 16px;
            }

            .news-item:hover {
                padding-left: 20px;
            }

            .featured-grid {
                margin: -10px;
            }

            .featured-grid > div {
                padding: 10px;
            }

            .cta-form {
                flex-direction: column;
            }

            .cta-form input {
                width: 100%;
            }

            .cta-form .btn {
                width: 100%;
            }

            .site-footer {
                padding-top: 48px;
            }

            .footer-bottom {
                margin-top: 32px;
            }
        }

        @media (max-width: 520px) {
            .section-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                margin-bottom: 32px;
            }

            .hero h1 {
                font-size: 32px;
            }

            .hero-eyebrow {
                font-size: 12px;
                padding: 5px 12px;
            }

            .story-mark {
                font-size: 56px;
            }

            .brand-story h2 {
                font-size: 26px;
            }

            .trust-quote blockquote {
                font-size: 18px;
            }

            .data-row strong {
                font-size: 22px;
                min-width: 60px;
            }

            .faq-q {
                padding: 18px 20px;
                font-size: 15px;
            }

            .faq-a {
                padding: 0 20px 20px;
                font-size: 14px;
            }
        }

/* roulang page: category1 */
:root {
            --brand: #C8F04D;
            --brand-hover: #D6F76E;
            --brand-deep: #4D6A14;
            --accent: #D97941;
            --bg-dark: #0B100E;
            --bg-light: #F4F3F0;
            --text-dark: #F2F1EA;
            --text-muted-dark: #A6B0AA;
            --text-main: #141916;
            --text-sub: #6B726E;
            --border-dark: #1F2622;
            --border-light: #D8D6CF;
            --radius-card: 12px;
            --radius-btn: 999px;
            --shadow-card: 0 2px 8px rgba(11, 16, 14, 0.06);
            --shadow-hover: 0 8px 24px rgba(11, 16, 14, 0.12);
            --transition: all 0.25s ease;
            --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --section-space: 96px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: var(--font-sans);
            background: var(--bg-light);
            color: var(--text-main);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        button {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 16, 14, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(31, 38, 34, 0.8);
            transition: box-shadow 0.3s ease;
        }
        .site-header.scrolled {
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
        }
        .custom-nav {
            padding: 0;
            min-height: 72px;
        }
        .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: var(--text-dark) !important;
            letter-spacing: 0.02em;
        }
        .brand-mark {
            position: relative;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--brand);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .brand-mark::after {
            content: "";
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--bg-dark);
            box-shadow: 7px 0 0 3px var(--bg-dark);
        }
        .navbar-nav {
            gap: 4px;
        }
        .nav-link {
            color: var(--text-muted-dark) !important;
            font-weight: 500;
            font-size: 15px;
            padding: 8px 14px !important;
            border-bottom: 2px solid transparent;
            border-radius: 0;
            position: relative;
            transition: var(--transition);
            line-height: 1.5;
        }
        .nav-link:hover {
            color: var(--text-dark) !important;
            border-bottom-color: var(--brand);
        }
        .nav-link.active {
            color: var(--brand) !important;
            border-bottom-color: var(--brand);
            font-weight: 600;
        }
        .nav-cta {
            min-width: 120px;
            text-align: center;
            margin-left: 12px;
        }
        .btn-brand {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--brand);
            color: #141916 !important;
            border-radius: var(--radius-btn);
            font-weight: 700;
            padding: 10px 24px;
            border: 2px solid transparent;
            font-size: 15px;
            letter-spacing: 0.02em;
            transition: all 0.25s ease;
            cursor: pointer;
        }
        .btn-brand:hover {
            background: var(--brand-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(200, 240, 77, 0.25);
            border-color: rgba(200, 240, 77, 0.4);
        }
        .btn-brand:focus-visible {
            outline: 3px solid rgba(200, 240, 77, 0.4);
            outline-offset: 2px;
        }
        .navbar-toggler {
            border: none;
            background: transparent;
            padding: 6px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
        }
        .toggler-line {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--brand);
            margin: 5px 0;
            border-radius: 2px;
            transition: var(--transition);
        }

        /* ========== Category Hero ========== */
        .category-hero {
            padding: 160px 0 88px;
            background: var(--bg-dark) url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            position: relative;
            color: var(--text-dark);
            overflow: hidden;
        }
        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(11, 16, 14, 0.94) 0%, rgba(11, 16, 14, 0.82) 55%, rgba(11, 16, 14, 0.45) 100%);
        }
        .category-hero::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, var(--brand) 0%, transparent 70%);
            opacity: 0.35;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            border: 1px solid rgba(200, 240, 77, 0.3);
            border-radius: var(--radius-btn);
            font-size: 13px;
            color: var(--brand);
            margin-bottom: 22px;
            letter-spacing: 0.06em;
        }
        .hero-badge i {
            font-size: 11px;
            color: var(--accent);
        }
        .category-hero h1 {
            font-size: 48px;
            font-weight: 800;
            letter-spacing: 0.02em;
            margin: 0 0 18px;
            line-height: 1.2;
        }
        .category-hero .lead {
            font-size: 17px;
            color: var(--text-muted-dark);
            max-width: 440px;
            line-height: 1.9;
            margin: 0;
        }
        .hero-meta-row {
            display: flex;
            align-items: center;
            gap: 32px;
            margin-top: 36px;
            flex-wrap: wrap;
        }
        .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-muted-dark);
        }
        .hero-meta-item i {
            color: var(--brand);
            font-size: 16px;
        }

        /* ========== Content Grid ========== */
        .content-grid-section {
            padding: var(--section-space) 0;
            background: var(--bg-light);
        }
        .section-heading {
            margin-bottom: 48px;
        }
        .section-heading .eyebrow {
            font-size: 13px;
            letter-spacing: 0.14em;
            color: var(--accent);
            font-weight: 700;
            margin-bottom: 8px;
            display: block;
            text-transform: uppercase;
        }
        .section-heading h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .section-heading p {
            color: var(--text-sub);
            max-width: 660px;
            font-size: 16px;
            line-height: 1.8;
        }
        .content-card {
            background: var(--bg-light);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 10px 10px 24px;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .content-card:hover {
            border-color: var(--brand);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .card-cover {
            border-radius: 8px;
            overflow: hidden;
            position: relative;
            margin-bottom: 18px;
            aspect-ratio: 16 / 10;
            background: #e8e6df;
        }
        .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }
        .content-card:hover .card-cover img {
            transform: scale(1.04);
        }
        .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: #fff;
            font-size: 12px;
            padding: 4px 14px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            letter-spacing: 0.04em;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
            z-index: 2;
        }
        .content-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: 10px;
            padding: 0 14px;
        }
        .content-card .card-desc {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 16px;
            padding: 0 14px;
            flex: 1;
        }
        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-sub);
            padding: 0 14px;
            border-top: 1px solid var(--border-light);
            padding-top: 14px;
            margin-top: 4px;
        }
        .card-meta time {
            color: var(--accent);
            font-weight: 500;
        }
        .card-meta a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--brand-deep);
            font-weight: 600;
            font-size: 14px;
        }
        .card-meta a:hover {
            color: #3D520E;
            transform: translateX(3px);
        }

        /* ========== Faq ========== */
        .faq-section {
            padding: var(--section-space) 0;
            background: var(--bg-light);
            border-top: 1px solid var(--border-light);
        }
        .faq-section .section-heading {
            text-align: center;
        }
        .faq-section .section-heading p {
            margin: 0 auto;
        }
        .custom-accordion .accordion-item {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: 12px;
            margin-bottom: 16px;
            overflow: hidden;
            transition: border-color 0.25s ease;
        }
        .custom-accordion .accordion-item:hover {
            border-color: var(--brand);
        }
        .custom-accordion .accordion-button {
            background: transparent;
            color: var(--text-main);
            font-weight: 600;
            font-size: 17px;
            padding: 22px 28px;
            box-shadow: none;
            border-radius: 0;
            position: relative;
        }
        .custom-accordion .accordion-button:not(.collapsed) {
            color: var(--brand-deep);
            background: rgba(200, 240, 77, 0.06);
        }
        .custom-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: var(--brand);
        }
        .custom-accordion .accordion-button::after {
            background-image: none;
            width: 10px;
            height: 10px;
            border-right: 2px solid var(--text-sub);
            border-bottom: 2px solid var(--text-sub);
            transform: rotate(45deg) translateY(-4px);
            transition: transform 0.3s ease;
        }
        .custom-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(225deg) translateY(4px);
            border-color: var(--brand-deep);
        }
        .custom-accordion .accordion-body {
            padding: 0 28px 26px;
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.9;
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: 84px 0;
            background: var(--bg-dark) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            position: relative;
            color: var(--text-dark);
        }
        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(11, 16, 14, 0.88);
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }
        .cta-inner .cta-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(200, 240, 77, 0.12);
            border: 1px solid rgba(200, 240, 77, 0.3);
            color: var(--brand);
            font-size: 20px;
            margin-bottom: 24px;
        }
        .cta-inner h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }
        .cta-inner p {
            color: var(--text-muted-dark);
            margin-bottom: 32px;
            font-size: 16px;
            line-height: 1.8;
        }
        .btn-cta-lg {
            min-height: 54px;
            padding: 14px 46px;
            font-size: 17px;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-muted-dark);
            padding: 72px 0 0;
        }
        .site-footer h4 {
            color: var(--text-dark);
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 20px;
            letter-spacing: 0.08em;
        }
        .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--text-dark) !important;
            font-weight: 800;
            font-size: 20px;
            margin-bottom: 16px;
        }
        .footer-slogan {
            font-size: 15px;
            color: var(--text-muted-dark);
            line-height: 1.9;
            max-width: 360px;
            margin-bottom: 0;
        }
        .footer-links,
        .contact-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li,
        .contact-list li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: var(--text-muted-dark);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-links a:hover {
            color: var(--brand);
        }
        .contact-list li {
            font-size: 14px;
        }
        .contact-list li span {
            color: var(--text-dark);
            margin-right: 8px;
            font-weight: 600;
            display: inline-block;
            min-width: 32px;
        }
        .footer-bottom {
            border-top: 1px solid var(--border-dark);
            margin-top: 56px;
            padding: 22px 0;
            text-align: center;
        }
        .footer-bottom p {
            margin: 0;
            font-size: 14px;
            color: var(--text-muted-dark);
            letter-spacing: 0.02em;
        }

        /* ========== Responsive ========== */
        @media (max-width: 991.98px) {
            :root {
                --section-space: 72px;
            }
            .category-hero {
                padding: 140px 0 64px;
            }
            .category-hero h1 {
                font-size: 40px;
            }
            .navbar-collapse {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--bg-dark);
                padding: 20px 24px 28px;
                border-radius: 0 0 16px 16px;
                border-bottom: 1px solid var(--border-dark);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
            }
            .navbar-nav {
                gap: 0;
                margin-bottom: 20px !important;
            }
            .nav-link {
                font-size: 18px;
                padding: 12px 4px !important;
                border-bottom: 1px solid rgba(31, 38, 34, 0.7);
            }
            .nav-link:hover,
            .nav-link.active {
                border-bottom-color: var(--brand);
            }
            .nav-cta {
                width: 100%;
                margin-left: 0;
            }
        }
        @media (max-width: 767.98px) {
            :root {
                --section-space: 56px;
            }
            .custom-nav {
                min-height: 64px;
            }
            .category-hero {
                padding: 116px 0 48px;
            }
            .category-hero h1 {
                font-size: 32px;
            }
            .category-hero .lead {
                font-size: 15px;
            }
            .hero-meta-row {
                gap: 16px;
                margin-top: 24px;
            }
            .hero-meta-item {
                font-size: 13px;
            }
            .section-heading h2 {
                font-size: 26px;
            }
            .section-heading p {
                font-size: 15px;
            }
            .cta-inner h2 {
                font-size: 26px;
            }
            .cta-inner p {
                font-size: 15px;
            }
            .btn-cta-lg {
                width: 100%;
                min-height: 50px;
                padding: 12px 24px;
                font-size: 16px;
            }
            .site-footer {
                padding-top: 56px;
            }
            .footer-bottom {
                margin-top: 40px;
            }
            .custom-accordion .accordion-button {
                font-size: 15px;
                padding: 18px 20px;
            }
            .custom-accordion .accordion-body {
                padding: 0 20px 22px;
                font-size: 14px;
            }
            .card-meta {
                flex-wrap: wrap;
                gap: 8px;
            }
        }

/* roulang page: category2 */
:root {
            --brand: #C8F04D;
            --brand-light: #d8f56e;
            --accent: #D97941;
            --dark-bg: #0B100E;
            --dark-bg-soft: #121A16;
            --light-bg: #F4F3F0;
            --text-dark: #141916;
            --text-dark-secondary: #6B726E;
            --text-light: #F2F1EA;
            --text-light-secondary: #A6B0AA;
            --border-dark: #1F2622;
            --border-light: #D8D6CF;
            --success: #2A9D8F;
            --warning: #E9C46A;
            --error: #E76F51;
            --radius-card: 12px;
            --radius-img: 8px;
            --radius-btn: 999px;
            --shadow-card: 0 2px 8px rgba(11, 16, 14, 0.06);
            --shadow-card-hover: 0 8px 24px rgba(11, 16, 14, 0.12);
            --font-stack: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --section-pad: 96px;
            --section-pad-md: 72px;
            --section-pad-sm: 56px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-dark);
            background-color: var(--light-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.25s ease;
        }

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

        button,
        input,
        textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(11, 16, 14, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-dark);
        }

        .custom-nav {
            padding: 14px 0;
            min-height: 68px;
        }

        .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: var(--text-light) !important;
            letter-spacing: 0.5px;
        }

        .navbar-brand .brand-mark {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--brand);
            position: relative;
            display: inline-block;
            flex-shrink: 0;
        }

        .navbar-brand .brand-mark::after {
            content: '';
            position: absolute;
            top: 8px;
            left: 10px;
            width: 12px;
            height: 16px;
            border-left: 3px solid var(--dark-bg);
            border-right: 3px solid var(--dark-bg);
            border-radius: 2px;
        }

        .custom-nav .navbar-nav {
            gap: 6px;
        }

        .custom-nav .nav-link {
            color: var(--text-light-secondary);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 18px;
            position: relative;
            letter-spacing: 0.3px;
            border-radius: 0;
        }

        .custom-nav .nav-link::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--brand);
            border-radius: 2px;
            transition: width 0.25s ease;
        }

        .custom-nav .nav-link:hover {
            color: var(--text-light);
        }

        .custom-nav .nav-link:hover::after {
            width: 24px;
        }

        .custom-nav .nav-link.active {
            color: var(--brand);
            font-weight: 700;
        }

        .custom-nav .nav-link.active::after {
            width: 24px;
        }

        .nav-cta.btn-brand {
            min-width: 120px;
            padding: 10px 26px;
            font-size: 15px;
            font-weight: 700;
            border-radius: var(--radius-btn);
            background: var(--brand);
            color: var(--dark-bg);
            border: none;
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .nav-cta.btn-brand:hover {
            background: var(--brand-light);
            transform: translateY(-2px);
            color: var(--dark-bg);
            box-shadow: 0 4px 16px rgba(200, 240, 77, 0.4);
        }

        .custom-toggler {
            border: none;
            padding: 8px;
            display: flex;
            flex-direction: column;
            gap: 6px;
            width: 44px;
            height: 44px;
            justify-content: center;
            align-items: center;
        }

        .custom-toggler .toggler-line {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--brand);
            border-radius: 2px;
            transition: all 0.25s ease;
        }

        .custom-toggler:focus {
            box-shadow: 0 0 0 3px rgba(200, 240, 77, 0.35);
        }

        .custom-toggler[aria-expanded="true"] .toggler-line:first-child {
            transform: translateY(4px) rotate(45deg);
        }

        .custom-toggler[aria-expanded="true"] .toggler-line:last-child {
            transform: translateY(-4px) rotate(-45deg);
        }

        /* ===== Category Hero / Title Area ===== */
        .category-hero {
            background: var(--dark-bg);
            padding: 80px 0 64px;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-dark);
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(200, 240, 77, 0.14) 0%, transparent 70%);
            pointer-events: none;
        }

        .category-hero .hero-row {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
        }

        .category-hero .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            background: rgba(217, 121, 65, 0.12);
            border: 1px solid rgba(217, 121, 65, 0.4);
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .category-hero h1 {
            font-size: 52px;
            font-weight: 800;
            color: var(--text-light);
            line-height: 1.15;
            margin: 0;
            letter-spacing: 1px;
        }

        .category-hero .hero-intro {
            max-width: 440px;
            color: var(--text-light-secondary);
            font-size: 15px;
            line-height: 1.8;
            border-left: 3px solid var(--brand);
            padding-left: 20px;
        }

        .category-hero .intro-wave {
            position: absolute;
            bottom: 18px;
            left: 24px;
            font-size: 22px;
            color: rgba(200, 240, 77, 0.35);
            letter-spacing: 4px;
        }

        /* ===== Content Grid ===== */
        .content-grid-section {
            padding: var(--section-pad) 0;
            background: var(--light-bg);
        }

        .section-heading {
            margin-bottom: 44px;
        }

        .section-heading .section-kicker {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--accent);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .section-heading h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--text-dark);
            margin: 0;
            line-height: 1.25;
        }

        .section-heading p.lead {
            color: var(--text-dark-secondary);
            font-size: 16px;
            max-width: 560px;
            margin-top: 12px;
        }

        .content-grid .row {
            margin: 0 -14px;
        }

        .content-grid .col-lg-4 {
            padding: 0 14px;
        }

        .feature-card {
            background: #fff;
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            transition: all 0.25s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
            margin-bottom: 28px;
        }

        .feature-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(200, 240, 77, 0.5);
            transform: translateY(-4px);
        }

        .feature-card .card-media {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
            background: var(--dark-bg);
        }

        .feature-card .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

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

        .feature-card .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 999px;
            letter-spacing: 0.5px;
            z-index: 2;
        }

        .feature-card .card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .feature-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.4;
            margin-bottom: 10px;
        }

        .feature-card .card-desc {
            font-size: 14px;
            color: var(--text-dark-secondary);
            line-height: 1.7;
            margin-bottom: 18px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .feature-card .card-meta {
            margin-top: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--border-light);
            padding-top: 14px;
        }

        .feature-card .card-date {
            font-size: 13px;
            color: var(--accent);
            font-weight: 500;
        }

        .feature-card .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--brand);
            background: rgba(200, 240, 77, 0.15);
            padding: 4px 14px;
            border-radius: 999px;
            transition: all 0.25s ease;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .feature-card .card-link:hover {
            background: var(--brand);
            color: var(--dark-bg);
            transform: translateX(2px);
        }

        /* ===== Scene / Highlight Section ===== */
        .scene-section {
            background: var(--dark-bg);
            padding: var(--section-pad) 0;
            border-top: 1px solid var(--border-dark);
            border-bottom: 1px solid var(--border-dark);
        }

        .scene-section .section-heading h2 {
            color: var(--text-light);
        }

        .scene-section .section-heading p.lead {
            color: var(--text-light-secondary);
        }

        .scene-block {
            display: flex;
            gap: 40px;
            align-items: center;
            flex-wrap: wrap;
        }

        .scene-block .scene-media {
            flex: 0 0 48%;
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border-dark);
        }

        .scene-block .scene-media img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        .scene-block .scene-content {
            flex: 1;
            min-width: 280px;
        }

        .scene-block .scene-label {
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--brand);
            margin-bottom: 12px;
            display: block;
        }

        .scene-block h3 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-light);
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .scene-block p {
            color: var(--text-light-secondary);
            font-size: 15px;
            line-height: 1.85;
            margin-bottom: 16px;
            max-width: 520px;
        }

        .scene-stats {
            display: flex;
            gap: 32px;
            margin-top: 24px;
            flex-wrap: wrap;
        }

        .scene-stat {
            border-left: 2px solid var(--brand);
            padding-left: 16px;
        }

        .scene-stat .stat-num {
            font-size: 40px;
            font-weight: 800;
            color: var(--brand);
            line-height: 1.2;
        }

        .scene-stat .stat-label {
            font-size: 13px;
            color: var(--text-light-secondary);
            letter-spacing: 0.5px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: var(--section-pad) 0;
            background: var(--light-bg);
        }

        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }

        .faq-item:hover {
            border-color: rgba(200, 240, 77, 0.5);
            box-shadow: var(--shadow-card);
        }

        .faq-item.active {
            border-color: rgba(200, 240, 77, 0.6);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            user-select: none;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: color 0.2s ease;
        }

        .faq-item.active .faq-question {
            color: var(--brand);
            background: var(--dark-bg);
        }

        .faq-question .faq-icon {
            position: relative;
            width: 22px;
            height: 22px;
            flex-shrink: 0;
            margin-left: 16px;
        }

        .faq-question .faq-icon::before,
        .faq-question .faq-icon::after {
            content: '';
            position: absolute;
            background: var(--accent);
            border-radius: 2px;
            transition: all 0.2s ease;
        }

        .faq-question .faq-icon::before {
            width: 14px;
            height: 2px;
            top: 10px;
            left: 4px;
        }

        .faq-question .faq-icon::after {
            width: 2px;
            height: 14px;
            top: 4px;
            left: 10px;
        }

        .faq-item.active .faq-question .faq-icon::after {
            transform: scaleY(0);
        }

        .faq-item.active .faq-question .faq-icon::before,
        .faq-item.active .faq-question .faq-icon::after {
            background: var(--brand);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.2s ease;
        }

        .faq-answer-inner {
            padding: 0 24px 22px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-dark-secondary);
            background: #fff;
        }

        .faq-item.active .faq-answer {
            max-height: 320px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--dark-bg);
            padding: 80px 0 88px;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            bottom: -40px;
            left: 0;
            right: 0;
            height: 180px;
            background: repeating-linear-gradient(90deg, transparent 0, transparent 38px, rgba(200, 240, 77, 0.06) 38px, rgba(200, 240, 77, 0.06) 40px);
            pointer-events: none;
        }

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

        .cta-inner .cta-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 3px;
            color: var(--accent);
            margin-bottom: 12px;
        }

        .cta-inner h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 14px;
            line-height: 1.25;
        }

        .cta-inner p {
            color: var(--text-light-secondary);
            font-size: 16px;
            max-width: 480px;
            margin: 0 auto 32px;
        }

        .btn-brand-lg {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--brand);
            color: var(--dark-bg);
            font-size: 17px;
            font-weight: 700;
            padding: 16px 42px;
            border-radius: var(--radius-btn);
            border: none;
            transition: all 0.2s ease;
            box-shadow: 0 4px 20px rgba(200, 240, 77, 0.25);
        }

        .btn-brand-lg:hover {
            background: var(--brand-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(200, 240, 77, 0.35);
            color: var(--dark-bg);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark-bg);
            border-top: 1px solid var(--border-dark);
            padding: 72px 0 0;
        }

        .site-footer .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 14px;
        }

        .footer-brand .brand-mark {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--brand);
            position: relative;
            display: inline-block;
        }

        .footer-brand .brand-mark::after {
            content: '';
            position: absolute;
            top: 8px;
            left: 10px;
            width: 12px;
            height: 16px;
            border-left: 3px solid var(--dark-bg);
            border-right: 3px solid var(--dark-bg);
            border-radius: 2px;
        }

        .footer-slogan {
            color: var(--text-light-secondary);
            font-size: 14px;
            line-height: 1.8;
            max-width: 320px;
            margin-top: 10px;
        }

        .site-footer h4 {
            color: var(--text-light);
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 18px;
        }

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

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: var(--text-light-secondary);
            font-size: 14px;
            transition: color 0.2s ease, padding-left 0.2s ease;
        }

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

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

        .contact-list li {
            color: var(--text-light-secondary);
            font-size: 14px;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
        }

        .contact-list li span {
            color: var(--text-light);
            font-weight: 600;
            min-width: 34px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-dark);
            margin-top: 48px;
            padding: 20px 0 24px;
            text-align: center;
        }

        .footer-bottom p {
            color: var(--text-light-secondary);
            font-size: 13px;
            margin: 0;
        }

        /* ===== Responsive ===== */
        @media (max-width: 991px) {
            :root {
                --section-pad: 72px;
            }

            .category-hero {
                padding: 60px 0 48px;
            }

            .category-hero .hero-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 24px;
            }

            .category-hero .hero-intro {
                max-width: 100%;
            }

            .scene-block {
                flex-direction: column-reverse;
                gap: 28px;
            }

            .scene-block .scene-media {
                flex-basis: 100%;
            }

            .custom-nav .navbar-collapse {
                background: var(--dark-bg-soft);
                padding: 20px;
                border-radius: 12px;
                margin-top: 12px;
                border: 1px solid var(--border-dark);
            }

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

            .custom-nav .nav-link {
                font-size: 17px;
                padding: 12px 10px;
                display: block;
                text-align: center;
            }

            .custom-nav .nav-link::after {
                display: none;
            }

            .custom-nav .nav-link.active {
                background: rgba(200, 240, 77, 0.1);
                border-radius: 8px;
            }

            .nav-cta.btn-brand {
                width: 100%;
                text-align: center;
                margin-top: 14px;
                justify-content: center;
                min-width: 0;
            }

            .site-header {
                background: rgba(11, 16, 14, 0.96);
            }
        }

        @media (max-width: 767px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .category-hero h1 {
                font-size: 36px;
            }

            .category-hero .hero-intro {
                font-size: 14px;
            }

            .content-grid-section {
                padding: 56px 0;
            }

            .section-heading h2 {
                font-size: 26px;
            }

            .faq-question {
                font-size: 15px;
                padding: 18px 16px;
            }

            .faq-answer-inner {
                padding: 0 16px 18px;
                font-size: 14px;
            }

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

            .cta-inner h2 {
                font-size: 26px;
            }

            .btn-brand-lg {
                padding: 14px 30px;
                font-size: 15px;
                width: 100%;
                justify-content: center;
                max-width: 340px;
                margin: 0 auto;
                display: flex;
            }

            .scene-stat .stat-num {
                font-size: 32px;
            }

            .site-footer {
                padding: 56px 0 0;
            }

            .site-footer .col-lg-5,
            .site-footer .col-lg-3,
            .site-footer .col-lg-4 {
                margin-bottom: 28px;
            }

            .footer-bottom {
                margin-top: 16px;
            }
        }

        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 30px;
            }

            .feature-card h3 {
                font-size: 17px;
            }

            .feature-card .card-desc {
                font-size: 13px;
            }

            .scene-stats {
                gap: 20px;
            }

            .scene-block h3 {
                font-size: 22px;
            }
        }

/* roulang page: article */
:root {
            --brand: #C8F04D;
            --brand-bright: #D9F469;
            --accent: #D97941;
            --dark: #0B100E;
            --dark-soft: #111A16;
            --light: #F4F3F0;
            --card-bg: #FFFFFF;
            --text-dark: #141916;
            --text-dark-sec: #6B726E;
            --text-light: #F2F1EA;
            --text-light-sec: #A6B0AA;
            --border-dark: #1F2622;
            --border-light: #D8D6CF;
            --radius-card: 12px;
            --radius-btn: 999px;
            --radius-img: 8px;
            --shadow-card: 0 2px 8px rgba(11, 16, 14, 0.06);
            --shadow-hover: 0 8px 24px rgba(11, 16, 14, 0.12);
            --transition: all 0.25s ease;
            --header-h: 72px;
            --font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background: var(--light);
            color: var(--text-dark);
            line-height: 1.8;
            padding-top: var(--header-h);
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .btn {
            border-radius: var(--radius-btn);
            font-weight: 600;
            transition: var(--transition);
            padding: 10px 24px;
            font-size: 15px;
        }

        .btn-brand {
            background: var(--brand);
            color: var(--dark);
            border: none;
            min-width: 120px;
            padding: 10px 28px;
            font-weight: 700;
            border-radius: var(--radius-btn);
        }

        .btn-brand:hover,
        .btn-brand:focus {
            background: var(--brand-bright);
            color: var(--dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(200, 240, 77, 0.25);
        }

        .btn-brand-lg {
            background: var(--brand);
            color: var(--dark);
            border: none;
            padding: 14px 40px;
            font-size: 17px;
            font-weight: 700;
            border-radius: var(--radius-btn);
            display: inline-block;
        }

        .btn-brand-lg:hover {
            background: var(--brand-bright);
            color: var(--dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(200, 240, 77, 0.3);
        }

        .btn-outline-light {
            border: 1px solid rgba(255, 255, 255, 0.4);
            color: var(--text-light);
            padding: 14px 36px;
            font-size: 17px;
            border-radius: var(--radius-btn);
            background: transparent;
            display: inline-block;
        }

        .btn-outline-light:hover {
            border-color: var(--brand);
            color: var(--brand);
            transform: translateY(-2px);
        }

        .btn-outline-dark {
            border: 1px solid var(--border-dark);
            color: var(--text-dark);
            padding: 10px 32px;
            border-radius: var(--radius-btn);
            background: transparent;
            font-weight: 600;
            display: inline-block;
        }

        .btn-outline-dark:hover {
            border-color: var(--brand);
            color: var(--dark);
            background: rgba(200, 240, 77, 0.1);
            transform: translateY(-2px);
        }

        /* 导航 */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1080;
            background: rgba(11, 16, 14, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(31, 38, 34, 0.8);
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            background: rgba(11, 16, 14, 0.97);
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.3);
        }

        .custom-nav {
            padding: 14px 0;
            min-height: var(--header-h);
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            letter-spacing: 0.02em;
            color: var(--text-light) !important;
        }

        .brand-mark {
            width: 28px;
            height: 28px;
            background: var(--brand);
            border-radius: 50% 50% 50% 8px;
            flex-shrink: 0;
            position: relative;
        }

        .brand-mark::after {
            content: '';
            position: absolute;
            inset: 6px;
            border: 2px solid var(--dark);
            border-radius: 50%;
            opacity: 0.6;
        }

        .navbar-nav .nav-link {
            color: var(--text-light-sec) !important;
            font-size: 15px;
            font-weight: 500;
            padding: 8px 18px !important;
            position: relative;
            transition: color 0.25s ease;
        }

        .navbar-nav .nav-link:hover {
            color: var(--text-light) !important;
        }

        .navbar-nav .nav-link::after {
            content: '';
            position: absolute;
            left: 18px;
            right: 18px;
            bottom: 2px;
            height: 2px;
            background: var(--brand);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.25s ease;
        }

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

        .navbar-nav .nav-link.active {
            color: var(--brand) !important;
        }

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

        .nav-cta {
            margin-left: 8px;
        }

        .custom-toggler {
            border: none;
            padding: 6px 8px;
            background: transparent;
        }

        .custom-toggler:focus {
            box-shadow: none;
        }

        .toggler-line {
            display: block;
            width: 26px;
            height: 2px;
            background: var(--brand);
            margin: 5px 0;
            transition: transform 0.25s ease;
        }

        /* 文章 Hero */
        .article-hero {
            background: var(--light);
            padding: 88px 0 140px;
            position: relative;
            overflow: hidden;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: -120px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(200, 240, 77, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--text-dark-sec);
            margin-bottom: 20px;
        }

        .breadcrumb-nav a {
            color: var(--text-dark-sec);
            border-bottom: 1px solid transparent;
        }

        .breadcrumb-nav a:hover {
            color: var(--dark);
            border-bottom-color: var(--brand);
        }

        .breadcrumb-sep {
            color: #A8ADA9;
            font-size: 13px;
        }

        .breadcrumb-current {
            color: var(--text-dark-sec);
            max-width: 260px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .category-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(217, 121, 65, 0.12);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 16px;
            border-radius: 999px;
            margin-bottom: 20px;
            border: 1px solid rgba(217, 121, 65, 0.25);
        }

        .category-badge::before {
            content: '';
            width: 6px;
            height: 6px;
            background: var(--accent);
            border-radius: 50%;
        }

        .article-title {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-dark);
            letter-spacing: -0.01em;
            margin-bottom: 22px;
            max-width: 820px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 14px;
            color: var(--text-dark-sec);
        }

        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta i {
            color: var(--accent);
            font-size: 13px;
        }

        /* 封面图 */
        .article-cover {
            max-width: 960px;
            margin: -90px auto 0;
            padding: 0 24px;
            position: relative;
            z-index: 5;
        }

        .article-cover img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            border-radius: 16px;
            box-shadow: var(--shadow-card);
        }

        /* 正文 */
        .article-body-wrap {
            background: var(--light);
            padding: 48px 0 96px;
        }

        .article-content {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: 16px;
            padding: 48px 56px;
            max-width: 860px;
            margin: 0 auto;
            font-size: 17px;
            line-height: 1.95;
            color: var(--text-dark);
        }

        .article-content p {
            margin-bottom: 24px;
            color: #2A302C;
        }

        .article-content h2 {
            font-size: 26px;
            font-weight: 700;
            margin: 40px 0 16px;
            color: var(--text-dark);
            letter-spacing: -0.01em;
            line-height: 1.4;
        }

        .article-content h3 {
            font-size: 21px;
            font-weight: 700;
            margin: 32px 0 14px;
            color: var(--text-dark);
            line-height: 1.4;
        }

        .article-content a {
            color: var(--accent);
            border-bottom: 1px solid rgba(217, 121, 65, 0.35);
        }

        .article-content a:hover {
            color: var(--dark);
            border-bottom-color: var(--brand);
        }

        .article-content img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius-img);
            margin: 28px auto;
        }

        .article-content blockquote {
            border-left: 4px solid var(--brand);
            background: #F0F5E8;
            padding: 20px 24px;
            border-radius: 0 8px 8px 0;
            margin: 32px 0;
            color: #3A423D;
            font-style: normal;
        }

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

        .article-content ul,
        .article-content ol {
            padding-left: 24px;
            margin-bottom: 24px;
            color: #2A302C;
        }

        .article-content li {
            margin-bottom: 8px;
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 32px 0;
            border: 1px solid var(--border-light);
            border-radius: 8px;
            overflow: hidden;
            font-size: 15px;
        }

        .article-content table th {
            background: var(--dark);
            color: var(--text-light);
            font-weight: 600;
            padding: 12px 16px;
            text-align: left;
        }

        .article-content table td {
            padding: 12px 16px;
            border-top: 1px solid var(--border-light);
            color: #2A302C;
        }

        .article-content table tr:nth-child(even) td {
            background: #FAFAF8;
        }

        .article-content iframe {
            max-width: 100%;
            border-radius: 8px;
            margin: 24px 0;
        }

        .article-content pre {
            background: var(--dark);
            color: var(--text-light);
            padding: 20px 24px;
            border-radius: 8px;
            overflow-x: auto;
            border: 1px solid var(--border-dark);
            margin: 28px 0;
            font-size: 14px;
            line-height: 1.7;
        }

        .article-content code {
            background: rgba(200, 240, 77, 0.15);
            color: #3F5D1E;
            padding: 2px 6px;
            border-radius: 4px;
            font-size: 14px;
        }

        .article-content pre code {
            background: transparent;
            color: var(--text-light);
            padding: 0;
        }

        /* 空态 */
        .article-empty {
            max-width: 640px;
            margin: 0 auto;
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: 16px;
            padding: 64px 40px;
            text-align: center;
        }

        .empty-mark {
            display: inline-block;
            width: 56px;
            height: 56px;
            background: var(--brand);
            border-radius: 50% 50% 50% 12px;
            margin-bottom: 24px;
            position: relative;
        }

        .empty-mark::after {
            content: '♪';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            font-size: 24px;
            color: var(--dark);
            font-weight: 800;
        }

        .article-empty p {
            font-size: 18px;
            color: var(--text-dark-sec);
            margin-bottom: 24px;
            font-weight: 500;
        }

        /* 相关推荐 */
        .related-section {
            background: #EBEAE6;
            padding: 96px 0;
            border-top: 1px solid var(--border-light);
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 40px;
        }

        .section-head h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-dark);
            letter-spacing: -0.02em;
            margin: 0;
            line-height: 1.2;
        }

        .section-head p {
            font-size: 15px;
            color: var(--text-dark-sec);
            margin: 0;
        }

        .related-grid .col {
            max-width: 33.333%;
        }

        .related-card {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
        }

        .related-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(200, 240, 77, 0.7);
            transform: translateY(-4px);
        }

        .related-card .card-cover {
            height: 190px;
            overflow: hidden;
            position: relative;
        }

        .related-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .related-card:hover .card-cover img {
            transform: scale(1.04);
        }

        .related-card .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            letter-spacing: 0.02em;
        }

        .related-card .card-body {
            padding: 20px 22px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-card h3 {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 10px;
            color: var(--text-dark);
        }

        .related-card .card-meta {
            font-size: 13px;
            color: var(--accent);
            font-weight: 500;
            margin-top: auto;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .related-card .card-meta i {
            font-size: 12px;
        }

        /* 文章 CTA */
        .article-cta {
            background: var(--dark);
            padding: 96px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .article-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 100%, rgba(200, 240, 77, 0.08) 0%, transparent 60%);
            pointer-events: none;
        }

        .article-cta h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 14px;
            letter-spacing: -0.02em;
            line-height: 1.3;
        }

        .article-cta p {
            font-size: 16px;
            color: var(--text-light-sec);
            margin-bottom: 32px;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }

        .article-cta .btn-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* 页脚 */
        .site-footer {
            background: var(--dark);
            color: var(--text-light);
            padding: 72px 0 0;
            border-top: 1px solid rgba(31, 38, 34, 0.6);
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 14px;
        }

        .footer-slogan {
            font-size: 14px;
            color: var(--text-light-sec);
            line-height: 1.8;
            max-width: 320px;
            margin-bottom: 0;
        }

        .site-footer h4 {
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--text-light);
            margin-bottom: 20px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-links a {
            font-size: 14px;
            color: var(--text-light-sec);
            display: inline-block;
            transition: color 0.25s ease, padding-left 0.25s ease;
        }

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

        .contact-list {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .contact-list li {
            font-size: 14px;
            color: var(--text-light-sec);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .contact-list span {
            color: var(--text-light);
            font-weight: 600;
            min-width: 52px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(31, 38, 34, 0.8);
            margin-top: 56px;
            padding: 20px 0;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--text-light-sec);
            margin: 0;
        }

        /* 响应式 */
        @media (max-width: 991px) {
            :root {
                --header-h: 66px;
            }

            .navbar-collapse {
                background: rgba(11, 16, 14, 0.98);
                border-radius: 12px;
                padding: 24px;
                margin-top: 12px;
                border: 1px solid var(--border-dark);
                position: absolute;
                top: 100%;
                left: 12px;
                right: 12px;
                z-index: 1080;
            }

            .navbar-nav .nav-link {
                font-size: 18px;
                padding: 12px 0 !important;
            }

            .navbar-nav .nav-link::after {
                display: none;
            }

            .nav-cta {
                display: block;
                margin-top: 20px;
                text-align: center;
                width: 100%;
            }

            .article-content {
                padding: 36px 32px;
            }
        }

        @media (max-width: 767px) {
            body {
                --header-h: 62px;
            }

            .article-hero {
                padding: 64px 0 120px;
            }

            .article-title {
                font-size: 26px;
                line-height: 1.35;
            }

            .article-meta {
                gap: 14px;
                font-size: 13px;
            }

            .article-cover {
                margin-top: -70px;
                padding: 0 16px;
            }

            .article-cover img {
                height: 240px;
                border-radius: 12px;
            }

            .article-content {
                padding: 24px 20px;
                font-size: 16px;
                line-height: 1.85;
                border-radius: 12px;
            }

            .article-content h2 {
                font-size: 22px;
            }

            .article-content h3 {
                font-size: 19px;
            }

            .related-section {
                padding: 64px 0;
            }

            .section-head h2 {
                font-size: 26px;
            }

            .article-cta {
                padding: 64px 0;
            }

            .article-cta h2 {
                font-size: 27px;
            }

            .article-cta .btn-group {
                flex-direction: column;
                align-items: center;
                width: 100%;
            }

            .article-cta .btn-brand-lg,
            .article-cta .btn-outline-light {
                width: 100%;
                text-align: center;
            }

            .site-footer {
                padding-top: 56px;
            }

            .footer-bottom {
                margin-top: 40px;
            }

            .related-grid .col {
                max-width: 100%;
                flex: 0 0 100%;
            }

            .breadcrumb-current {
                max-width: 180px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .article-title {
                font-size: 23px;
            }

            .article-meta {
                gap: 10px;
                flex-direction: column;
                align-items: flex-start;
            }

            .article-cover img {
                height: 200px;
            }
        }