/* roulang page: index */
:root {
            --tk-primary: #10241B;
            --tk-accent: #C8F031;
            --tk-accent-hover: #B5DC24;
            --tk-charcoal: #161616;
            --tk-warm-white: #F4F6F0;
            --tk-white: #FFFFFF;
            --tk-text: #1A1A1A;
            --tk-text-weak: #5A5F5B;
            --tk-text-muted: #8A8F8B;
            --tk-border: rgba(16, 36, 27, 0.08);
            --tk-border-strong: rgba(16, 36, 27, 0.16);
            --tk-radius-card: 20px;
            --tk-radius-btn: 10px;
            --tk-radius-badge: 999px;
            --tk-shadow-sm: 0 2px 8px rgba(16, 36, 27, 0.06);
            --tk-shadow-md: 0 8px 24px rgba(16, 36, 27, 0.12);
            --tk-shadow-lg: 0 16px 40px rgba(16, 36, 27, 0.16);
            --tk-font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --tk-font-mono: 'SF Mono', 'Roboto Mono', 'Consolas', monospace;
            --tk-section-gap: 80px;
            --tk-section-gap-mobile: 48px;
            --tk-card-padding: 28px;
            --tk-transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: var(--tk-font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--tk-text);
            background-color: var(--tk-warm-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

        a:hover {
            text-decoration: none;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

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

        .tk-container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        @media (min-width: 640px) {
            .tk-container {
                padding: 0 28px;
            }
        }

        @media (min-width: 1024px) {
            .tk-container {
                padding: 0 36px;
            }
        }

        section {
            padding: var(--tk-section-gap) 0;
        }

        @media (max-width: 639px) {
            section {
                padding: var(--tk-section-gap-mobile) 0;
            }
        }

        .tk-section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--tk-primary);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .tk-section-subtitle {
            font-size: 15px;
            line-height: 1.75;
            color: var(--tk-text-weak);
            max-width: 760px;
            margin-bottom: 36px;
        }

        @media (min-width: 1024px) {
            .tk-section-title {
                font-size: 32px;
            }
            .tk-section-subtitle {
                font-size: 16px;
            }
        }

        .tk-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            font-size: 13px;
            font-weight: 600;
            border-radius: var(--tk-radius-badge);
            background: rgba(200, 240, 49, 0.18);
            color: var(--tk-primary);
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        .tk-tag--accent {
            background: var(--tk-accent);
            color: var(--tk-primary);
        }

        .tk-tag--dark {
            background: var(--tk-primary);
            color: var(--tk-accent);
        }

        .tk-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 26px;
            font-size: 15px;
            font-weight: 700;
            border-radius: var(--tk-radius-btn);
            transition: var(--tk-transition);
            letter-spacing: 0.02em;
            white-space: nowrap;
            cursor: pointer;
            border: 2px solid transparent;
            line-height: 1.4;
        }

        .tk-btn--primary {
            background: var(--tk-accent);
            color: var(--tk-primary);
            border-color: var(--tk-accent);
        }

        .tk-btn--primary:hover {
            background: var(--tk-accent-hover);
            border-color: var(--tk-accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(200, 240, 49, 0.35);
            color: var(--tk-primary);
        }

        .tk-btn--primary:focus-visible {
            outline: 2px solid var(--tk-accent);
            outline-offset: 2px;
        }

        .tk-btn--secondary {
            background: transparent;
            color: var(--tk-accent);
            border-color: var(--tk-accent);
        }

        .tk-btn--secondary:hover {
            background: rgba(200, 240, 49, 0.12);
            transform: translateY(-2px);
            color: var(--tk-accent);
        }

        .tk-btn--secondary:focus-visible {
            outline: 2px solid var(--tk-accent);
            outline-offset: 2px;
        }

        .tk-btn--ghost-light {
            background: transparent;
            color: var(--tk-white);
            border-color: rgba(255, 255, 255, 0.4);
        }

        .tk-btn--ghost-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.7);
            color: var(--tk-white);
            transform: translateY(-2px);
        }

        .tk-btn--sm {
            padding: 9px 18px;
            font-size: 14px;
        }

        .tk-btn--lg {
            padding: 16px 32px;
            font-size: 16px;
        }

        .tk-text-link {
            color: var(--tk-accent);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--tk-transition);
        }

        .tk-text-link:hover {
            text-decoration: underline;
            color: var(--tk-accent-hover);
        }

        .tk-text-link:focus-visible {
            outline: 2px solid var(--tk-accent);
            outline-offset: 2px;
        }

        .tk-card {
            background: var(--tk-white);
            border-radius: var(--tk-radius-card);
            border: 1px solid var(--tk-border);
            box-shadow: var(--tk-shadow-sm);
            overflow: hidden;
            transition: var(--tk-transition);
        }

        .tk-card:hover {
            box-shadow: var(--tk-shadow-md);
            transform: translateY(-3px);
            border-color: var(--tk-border-strong);
        }

        .tk-card__body {
            padding: var(--tk-card-padding);
        }

        .tk-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-family: var(--tk-font-mono);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--tk-radius-badge);
            letter-spacing: 0.02em;
        }

        .tk-badge--accent {
            background: var(--tk-accent);
            color: var(--tk-primary);
        }

        .tk-badge--dark {
            background: var(--tk-primary);
            color: var(--tk-accent);
            border: 1px solid rgba(200, 240, 49, 0.4);
        }

        .tk-badge--outline {
            background: transparent;
            color: var(--tk-primary);
            border: 1px solid var(--tk-border-strong);
        }

        /* ========== Header / Nav ========== */
        .tk-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: var(--tk-primary);
            border-bottom: 1px solid rgba(200, 240, 49, 0.15);
            transition: var(--tk-transition);
            height: 72px;
            display: flex;
            align-items: center;
        }

        .tk-header .tk-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
        }

        .tk-header__logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .tk-header__logo-icon {
            width: 40px;
            height: 40px;
            background: var(--tk-accent);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            color: var(--tk-primary);
            letter-spacing: -1px;
            flex-shrink: 0;
        }

        .tk-header__logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--tk-white);
            letter-spacing: 0.04em;
            white-space: nowrap;
        }

        .tk-header__logo-text span {
            color: var(--tk-accent);
        }

        .tk-header__nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }

        .tk-header__nav a {
            color: rgba(255, 255, 255, 0.85);
            font-size: 14px;
            font-weight: 600;
            padding: 8px 14px;
            border-radius: 8px;
            white-space: nowrap;
            letter-spacing: 0.03em;
            transition: var(--tk-transition);
            position: relative;
        }

        .tk-header__nav a:hover {
            color: var(--tk-accent);
            background: rgba(200, 240, 49, 0.08);
        }

        .tk-header__nav a.tk-active {
            color: var(--tk-accent);
            background: rgba(200, 240, 49, 0.12);
        }

        .tk-header__nav a.tk-active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 2px;
            background: var(--tk-accent);
            border-radius: 2px;
        }

        .tk-header__actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .tk-header__countdown {
            display: flex;
            align-items: center;
            gap: 6px;
            background: rgba(200, 240, 49, 0.12);
            border: 1px solid rgba(200, 240, 49, 0.3);
            border-radius: var(--tk-radius-badge);
            padding: 6px 14px;
            font-family: var(--tk-font-mono);
            font-size: 13px;
            font-weight: 600;
            color: var(--tk-accent);
        }

        .tk-header__countdown i {
            font-size: 12px;
        }

        .tk-header__burger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            cursor: pointer;
            border-radius: 6px;
            background: transparent;
            border: none;
        }

        .tk-header__burger span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--tk-white);
            border-radius: 2px;
            transition: var(--tk-transition);
        }

        .tk-header__burger:hover span {
            background: var(--tk-accent);
        }

        .tk-mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            background: var(--tk-primary);
            padding: 20px 24px 32px;
            z-index: 998;
            border-bottom: 1px solid rgba(200, 240, 49, 0.15);
            flex-direction: column;
            gap: 4px;
            transition: var(--tk-transition);
        }

        .tk-mobile-menu.tk-open {
            display: flex;
        }

        .tk-mobile-menu a {
            color: rgba(255, 255, 255, 0.9);
            font-size: 16px;
            font-weight: 600;
            padding: 12px 8px;
            border-radius: 8px;
            display: block;
        }

        .tk-mobile-menu a:hover,
        .tk-mobile-menu a.tk-active {
            color: var(--tk-accent);
            background: rgba(200, 240, 49, 0.08);
        }

        .tk-mobile-menu .tk-btn {
            margin-top: 12px;
        }

        @media (max-width: 1023px) {
            .tk-header__nav {
                display: none;
            }
            .tk-header__countdown {
                display: none;
            }
            .tk-header__burger {
                display: flex;
            }
        }

        @media (min-width: 1024px) {
            .tk-mobile-menu {
                display: none !important;
            }
        }

        /* ========== Hero ========== */
        .tk-hero {
            position: relative;
            min-height: 680px;
            display: flex;
            align-items: center;
            padding-top: 72px;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            isolation: isolate;
            overflow: hidden;
        }

        .tk-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(16, 36, 27, 0.88) 0%, rgba(22, 22, 22, 0.82) 100%);
            z-index: -1;
        }

        .tk-hero__grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 36px;
            align-items: center;
            width: 100%;
        }

        @media (min-width: 1024px) {
            .tk-hero__grid {
                grid-template-columns: 1fr 420px;
                gap: 48px;
            }
        }

        .tk-hero__content h1 {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--tk-white);
            margin: 0 0 18px;
            letter-spacing: -0.5px;
        }

        .tk-hero__content h1 .tk-highlight {
            color: var(--tk-accent);
        }

        .tk-hero__content p {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            margin: 0 0 28px;
            max-width: 560px;
        }

        @media (min-width: 640px) {
            .tk-hero__content h1 {
                font-size: 40px;
            }
            .tk-hero__content p {
                font-size: 17px;
            }
        }

        @media (min-width: 1024px) {
            .tk-hero__content h1 {
                font-size: 46px;
            }
            .tk-hero__content p {
                font-size: 18px;
            }
        }

        .tk-hero__cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 28px;
        }

        .tk-hero__stats {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
        }

        .tk-hero__stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .tk-hero__stat-number {
            font-family: var(--tk-font-mono);
            font-size: 24px;
            font-weight: 700;
            color: var(--tk-accent);
            line-height: 1.2;
        }

        .tk-hero__stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
        }

        .tk-hero__form-card {
            background: var(--tk-white);
            border-radius: var(--tk-radius-card);
            padding: 28px;
            box-shadow: var(--tk-shadow-lg);
            border: 1px solid rgba(200, 240, 49, 0.2);
        }

        .tk-hero__form-card h2 {
            font-size: 18px;
            font-weight: 700;
            color: var(--tk-primary);
            margin-bottom: 6px;
        }

        .tk-hero__form-card p {
            font-size: 13px;
            color: var(--tk-text-weak);
            margin-bottom: 18px;
        }

        .tk-hero__form-card .tk-form-group {
            margin-bottom: 14px;
        }

        .tk-hero__form-card label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--tk-text);
            margin-bottom: 6px;
        }

        .tk-hero__form-card input,
        .tk-hero__form-card select,
        .tk-hero__form-card textarea {
            width: 100%;
            padding: 11px 14px;
            border: 1.5px solid var(--tk-border-strong);
            border-radius: 8px;
            font-size: 14px;
            color: var(--tk-text);
            background: var(--tk-warm-white);
            transition: var(--tk-transition);
            -webkit-appearance: none;
            appearance: none;
        }

        .tk-hero__form-card input:focus,
        .tk-hero__form-card select:focus,
        .tk-hero__form-card textarea:focus {
            outline: none;
            border-color: var(--tk-accent);
            box-shadow: 0 0 0 3px rgba(200, 240, 49, 0.2);
            background: var(--tk-white);
        }

        .tk-hero__form-card .tk-btn {
            width: 100%;
            margin-top: 6px;
        }

        .tk-hero__form-note {
            font-size: 12px;
            color: var(--tk-text-muted);
            text-align: center;
            margin-top: 12px;
        }

        @media (max-width: 639px) {
            .tk-hero {
                min-height: auto;
                padding-top: 90px;
                padding-bottom: 40px;
            }
            .tk-hero__form-card {
                padding: 20px;
            }
        }

        /* ========== 内容日历 ========== */
        .tk-calendar-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }

        @media (min-width: 768px) {
            .tk-calendar-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 24px;
            }
        }

        .tk-calendar-item {
            background: var(--tk-white);
            border-radius: 14px;
            border: 1px solid var(--tk-border);
            padding: 20px;
            display: flex;
            gap: 16px;
            align-items: flex-start;
            transition: var(--tk-transition);
        }

        .tk-calendar-item:hover {
            border-color: var(--tk-accent);
            box-shadow: var(--tk-shadow-sm);
        }

        .tk-calendar-date {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            background: var(--tk-primary);
            color: var(--tk-white);
            border-radius: 10px;
            padding: 8px 12px;
            min-width: 56px;
            flex-shrink: 0;
        }

        .tk-calendar-date .month {
            font-size: 12px;
            font-weight: 600;
            color: var(--tk-accent);
            text-transform: uppercase;
        }

        .tk-calendar-date .day {
            font-family: var(--tk-font-mono);
            font-size: 22px;
            font-weight: 700;
            line-height: 1.2;
        }

        .tk-calendar-info h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--tk-primary);
            margin-bottom: 4px;
            line-height: 1.4;
        }

        .tk-calendar-info p {
            font-size: 13px;
            color: var(--tk-text-weak);
            margin: 0;
            line-height: 1.6;
        }

        /* ========== 热门专题 ========== */
        .tk-topic-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        @media (min-width: 768px) {
            .tk-topic-grid {
                grid-template-columns: repeat(4, 1fr);
                gap: 20px;
            }
        }

        @media (max-width: 639px) {
            .tk-topic-grid {
                grid-template-columns: 1fr;
            }
        }

        .tk-topic-card {
            position: relative;
            border-radius: 14px;
            overflow: hidden;
            aspect-ratio: 3/4;
            cursor: pointer;
            transition: var(--tk-transition);
            display: block;
        }

        .tk-topic-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--tk-transition);
        }

        .tk-topic-card:hover img {
            transform: scale(1.05);
        }

        .tk-topic-card::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(16, 36, 27, 0.85) 0%, rgba(16, 36, 27, 0.15) 50%, rgba(16, 36, 27, 0.05) 100%);
            transition: var(--tk-transition);
        }

        .tk-topic-card:hover::after {
            background: linear-gradient(to top, rgba(16, 36, 27, 0.92) 0%, rgba(16, 36, 27, 0.25) 60%, rgba(16, 36, 27, 0.08) 100%);
        }

        .tk-topic-card__label {
            position: absolute;
            bottom: 14px;
            left: 14px;
            right: 14px;
            z-index: 2;
            color: var(--tk-white);
            font-size: 15px;
            font-weight: 700;
            line-height: 1.4;
        }

        .tk-topic-card__label small {
            display: block;
            font-size: 12px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 2px;
        }

        /* ========== 数据看板 ========== */
        .tk-dashboard-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        @media (min-width: 768px) {
            .tk-dashboard-grid {
                grid-template-columns: repeat(4, 1fr);
                gap: 20px;
            }
        }

        @media (max-width: 639px) {
            .tk-dashboard-grid {
                grid-template-columns: 1fr;
            }
        }

        .tk-stat-card {
            background: var(--tk-white);
            border-radius: var(--tk-radius-card);
            border: 1px solid var(--tk-border);
            box-shadow: var(--tk-shadow-sm);
            padding: 24px 20px;
            text-align: center;
            transition: var(--tk-transition);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
        }

        .tk-stat-card:hover {
            box-shadow: var(--tk-shadow-md);
            transform: translateY(-3px);
            border-color: rgba(200, 240, 49, 0.5);
        }

        .tk-stat-card__number {
            font-family: var(--tk-font-mono);
            font-size: 38px;
            font-weight: 700;
            color: var(--tk-primary);
            line-height: 1.1;
            letter-spacing: -1px;
        }

        .tk-stat-card__label {
            font-size: 14px;
            font-weight: 600;
            color: var(--tk-text);
        }

        .tk-stat-card__trend {
            font-family: var(--tk-font-mono);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: var(--tk-radius-badge);
            background: rgba(200, 240, 49, 0.25);
            color: var(--tk-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* ========== 服务矩阵 ========== */
        .tk-service-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }

        @media (min-width: 768px) {
            .tk-service-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
        }

        .tk-service-card {
            background: var(--tk-white);
            border-radius: var(--tk-radius-card);
            border: 1px solid var(--tk-border);
            overflow: hidden;
            box-shadow: var(--tk-shadow-sm);
            transition: var(--tk-transition);
            display: flex;
            flex-direction: column;
        }

        .tk-service-card:hover {
            box-shadow: var(--tk-shadow-md);
            transform: translateY(-3px);
        }

        .tk-service-card__image {
            height: 180px;
            overflow: hidden;
        }

        .tk-service-card__image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--tk-transition);
        }

        .tk-service-card:hover .tk-service-card__image img {
            transform: scale(1.04);
        }

        .tk-service-card__body {
            padding: 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .tk-service-card__body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--tk-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .tk-service-card__body p {
            font-size: 14px;
            color: var(--tk-text-weak);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }

        .tk-service-card--featured {
            grid-column: 1 / -1;
        }

        .tk-service-card--featured .tk-service-card__image {
            height: 220px;
        }

        @media (min-width: 768px) {
            .tk-service-card--featured .tk-service-card__image {
                height: 260px;
            }
        }

        /* ========== 资讯 ========== */
        .tk-news-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
        }

        @media (min-width: 1024px) {
            .tk-news-layout {
                grid-template-columns: 1fr 340px;
                gap: 40px;
            }
        }

        .tk-news-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .tk-news-item {
            background: var(--tk-white);
            border-radius: 12px;
            border: 1px solid var(--tk-border);
            padding: 16px 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            transition: var(--tk-transition);
        }

        .tk-news-item:hover {
            border-color: var(--tk-accent);
            box-shadow: var(--tk-shadow-sm);
            background: rgba(200, 240, 49, 0.05);
        }

        .tk-news-item__meta {
            font-family: var(--tk-font-mono);
            font-size: 12px;
            color: var(--tk-text-muted);
            min-width: 64px;
            flex-shrink: 0;
        }

        .tk-news-item__title {
            font-size: 15px;
            font-weight: 600;
            color: var(--tk-text);
            line-height: 1.5;
            flex: 1;
        }

        .tk-news-item:hover .tk-news-item__title {
            color: var(--tk-primary);
        }

        .tk-news-item__arrow {
            color: var(--tk-text-muted);
            font-size: 14px;
            transition: var(--tk-transition);
        }

        .tk-news-item:hover .tk-news-item__arrow {
            color: var(--tk-accent);
            transform: translateX(4px);
        }

        .tk-news-sidebar {
            background: var(--tk-primary);
            border-radius: var(--tk-radius-card);
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .tk-news-sidebar h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--tk-white);
            margin: 0;
        }

        .tk-news-sidebar__item {
            display: flex;
            gap: 10px;
            align-items: flex-start;
        }

        .tk-news-sidebar__item .num {
            font-family: var(--tk-font-mono);
            font-size: 20px;
            font-weight: 700;
            color: var(--tk-accent);
            line-height: 1.2;
            min-width: 28px;
        }

        .tk-news-sidebar__item p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.8);
            margin: 0;
            line-height: 1.6;
        }

        /* ========== 结果对比 ========== */
        .tk-compare-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }

        @media (min-width: 768px) {
            .tk-compare-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        .tk-compare-card {
            border-radius: var(--tk-radius-card);
            padding: 28px;
            transition: var(--tk-transition);
        }

        .tk-compare-card--before {
            background: #F0F2ED;
            border: 1px solid var(--tk-border-strong);
        }

        .tk-compare-card--after {
            background: var(--tk-primary);
            border: 1px solid rgba(200, 240, 49, 0.3);
            color: var(--tk-white);
        }

        .tk-compare-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .tk-compare-card--before h3 {
            color: var(--tk-text-muted);
        }

        .tk-compare-card--after h3 {
            color: var(--tk-accent);
        }

        .tk-compare-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .tk-compare-card li {
            font-size: 14px;
            line-height: 1.6;
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }

        .tk-compare-card--before li {
            color: var(--tk-text-weak);
        }

        .tk-compare-card--after li {
            color: rgba(255, 255, 255, 0.85);
        }

        .tk-compare-card li i {
            margin-top: 4px;
            flex-shrink: 0;
        }

        .tk-compare-card--before li i {
            color: #B0B5B0;
        }

        .tk-compare-card--after li i {
            color: var(--tk-accent);
        }

        /* ========== 使用指南 ========== */
        .tk-steps-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }

        @media (min-width: 768px) {
            .tk-steps-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 24px;
            }
        }

        .tk-step-card {
            background: var(--tk-white);
            border-radius: var(--tk-radius-card);
            border: 1px solid var(--tk-border);
            box-shadow: var(--tk-shadow-sm);
            padding: 28px 24px;
            position: relative;
            transition: var(--tk-transition);
        }

        .tk-step-card:hover {
            box-shadow: var(--tk-shadow-md);
            transform: translateY(-3px);
        }

        .tk-step-card__number {
            font-family: var(--tk-font-mono);
            font-size: 40px;
            font-weight: 700;
            color: var(--tk-accent);
            line-height: 1;
            margin-bottom: 12px;
            display: block;
        }

        .tk-step-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--tk-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

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

        /* ========== 品牌介绍 ========== */
        .tk-brand-intro {
            background: var(--tk-white);
            border-radius: var(--tk-radius-card);
            border: 1px solid var(--tk-border);
            box-shadow: var(--tk-shadow-sm);
            padding: 36px;
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
            align-items: center;
        }

        @media (min-width: 768px) {
            .tk-brand-intro {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
                padding: 44px;
            }
        }

        .tk-brand-intro__text h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--tk-primary);
            margin-bottom: 14px;
            line-height: 1.4;
        }

        .tk-brand-intro__text p {
            font-size: 15px;
            color: var(--tk-text-weak);
            line-height: 1.85;
            margin-bottom: 10px;
        }

        .tk-brand-intro__image {
            border-radius: 14px;
            overflow: hidden;
            height: 240px;
        }

        .tk-brand-intro__image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ========== 平台保障 ========== */
        .tk-guarantee-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 14px;
        }

        @media (min-width: 768px) {
            .tk-guarantee-grid {
                grid-template-columns: repeat(4, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 639px) {
            .tk-guarantee-grid {
                grid-template-columns: 1fr;
            }
        }

        .tk-guarantee-item {
            display: flex;
            align-items: center;
            gap: 12px;
            background: var(--tk-white);
            border-radius: 12px;
            border: 1px solid var(--tk-border);
            padding: 16px 18px;
            transition: var(--tk-transition);
        }

        .tk-guarantee-item:hover {
            border-color: var(--tk-accent);
            box-shadow: var(--tk-shadow-sm);
        }

        .tk-guarantee-item i {
            font-size: 22px;
            color: var(--tk-primary);
            flex-shrink: 0;
        }

        .tk-guarantee-item span {
            font-size: 14px;
            font-weight: 600;
            color: var(--tk-text);
            line-height: 1.4;
        }

        /* ========== 议程时间线 ========== */
        .tk-timeline {
            position: relative;
            padding-left: 28px;
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .tk-timeline::before {
            content: '';
            position: absolute;
            left: 6px;
            top: 4px;
            bottom: 4px;
            width: 2px;
            background: rgba(16, 36, 27, 0.15);
            border-radius: 2px;
        }

        .tk-timeline-item {
            position: relative;
            background: var(--tk-white);
            border-radius: 14px;
            border: 1px solid var(--tk-border);
            padding: 18px 20px;
            transition: var(--tk-transition);
        }

        .tk-timeline-item:hover {
            border-color: var(--tk-accent);
            box-shadow: var(--tk-shadow-sm);
        }

        .tk-timeline-item::before {
            content: '';
            position: absolute;
            left: -28px;
            top: 22px;
            width: 10px;
            height: 10px;
            background: var(--tk-accent);
            border-radius: 50%;
            border: 2px solid var(--tk-primary);
        }

        .tk-timeline-item__time {
            font-family: var(--tk-font-mono);
            font-size: 13px;
            font-weight: 600;
            color: var(--tk-primary);
            display: block;
            margin-bottom: 4px;
        }

        .tk-timeline-item h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--tk-text);
            margin-bottom: 4px;
            line-height: 1.4;
        }

        .tk-timeline-item p {
            font-size: 13px;
            color: var(--tk-text-weak);
            margin: 0;
            line-height: 1.6;
        }

        /* ========== 爆款清单 ========== */
        .tk-hot-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 14px;
        }

        @media (min-width: 768px) {
            .tk-hot-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
        }

        .tk-hot-card {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--tk-white);
            border-radius: 14px;
            border: 1px solid var(--tk-border);
            padding: 18px 20px;
            transition: var(--tk-transition);
        }

        .tk-hot-card:hover {
            border-color: var(--tk-accent);
            box-shadow: var(--tk-shadow-sm);
            transform: translateX(4px);
        }

        .tk-hot-card__rank {
            font-family: var(--tk-font-mono);
            font-size: 28px;
            font-weight: 700;
            color: var(--tk-accent);
            min-width: 44px;
            text-align: center;
        }

        .tk-hot-card__info {
            flex: 1;
        }

        .tk-hot-card__info h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--tk-text);
            margin-bottom: 4px;
            line-height: 1.4;
        }

        .tk-hot-card__info p {
            font-size: 13px;
            color: var(--tk-text-weak);
            margin: 0;
            line-height: 1.5;
        }

        .tk-hot-card .tk-btn {
            flex-shrink: 0;
        }

        /* ========== FAQ ========== */
        .tk-faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 800px;
        }

        .tk-faq-item {
            background: var(--tk-white);
            border-radius: 12px;
            border: 1px solid var(--tk-border);
            overflow: hidden;
            transition: var(--tk-transition);
        }

        .tk-faq-item:hover {
            border-color: var(--tk-border-strong);
        }

        .tk-faq-item__question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 18px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--tk-primary);
            text-align: left;
            background: transparent;
            border: none;
            cursor: pointer;
            transition: var(--tk-transition);
            line-height: 1.4;
        }

        .tk-faq-item__question:hover {
            color: var(--tk-primary);
        }

        .tk-faq-item__question:focus-visible {
            outline: 2px solid var(--tk-accent);
            outline-offset: -2px;
        }

        .tk-faq-item__icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(200, 240, 49, 0.2);
            border-radius: 50%;
            font-size: 16px;
            font-weight: 700;
            color: var(--tk-primary);
            transition: var(--tk-transition);
            line-height: 1;
        }

        .tk-faq-item.tk-open .tk-faq-item__icon {
            background: var(--tk-accent);
            transform: rotate(45deg);
        }

        .tk-faq-item__answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
        }

        .tk-faq-item.tk-open .tk-faq-item__answer {
            max-height: 200px;
            padding: 0 20px 18px;
        }

        .tk-faq-item__answer p {
            font-size: 14px;
            color: var(--tk-text-weak);
            line-height: 1.75;
            margin: 0;
        }

        /* ========== 转化表单 ========== */
        .tk-cta-section {
            background: linear-gradient(135deg, var(--tk-primary) 0%, var(--tk-charcoal) 100%);
            position: relative;
            overflow: hidden;
        }

        .tk-cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 240px;
            height: 240px;
            background: rgba(200, 240, 49, 0.08);
            border-radius: 50%;
            pointer-events: none;
        }

        .tk-cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -40px;
            width: 280px;
            height: 280px;
            background: rgba(200, 240, 49, 0.05);
            border-radius: 50%;
            pointer-events: none;
        }

        .tk-cta-form-wrapper {
            position: relative;
            z-index: 1;
            max-width: 600px;
            margin: 0 auto;
        }

        .tk-cta-form-card {
            background: var(--tk-white);
            border-radius: var(--tk-radius-card);
            padding: 32px;
            box-shadow: var(--tk-shadow-lg);
            border: 1px solid rgba(200, 240, 49, 0.25);
        }

        .tk-cta-form-card h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--tk-primary);
            margin-bottom: 6px;
            text-align: center;
        }

        .tk-cta-form-card > p {
            font-size: 14px;
            color: var(--tk-text-weak);
            text-align: center;
            margin-bottom: 22px;
        }

        .tk-cta-form-card .tk-form-group {
            margin-bottom: 16px;
        }

        .tk-cta-form-card label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--tk-text);
            margin-bottom: 6px;
        }

        .tk-cta-form-card input,
        .tk-cta-form-card select,
        .tk-cta-form-card textarea {
            width: 100%;
            padding: 12px 14px;
            border: 1.5px solid var(--tk-border-strong);
            border-radius: 8px;
            font-size: 14px;
            color: var(--tk-text);
            background: var(--tk-warm-white);
            transition: var(--tk-transition);
            -webkit-appearance: none;
            appearance: none;
        }

        .tk-cta-form-card input:focus,
        .tk-cta-form-card select:focus,
        .tk-cta-form-card textarea:focus {
            outline: none;
            border-color: var(--tk-accent);
            box-shadow: 0 0 0 3px rgba(200, 240, 49, 0.2);
            background: var(--tk-white);
        }

        .tk-cta-form-card .tk-btn {
            width: 100%;
            margin-top: 4px;
        }

        .tk-cta-form-note {
            font-size: 12px;
            color: var(--tk-text-muted);
            text-align: center;
            margin-top: 12px;
        }

        .tk-cta-benefits {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-top: 20px;
        }

        .tk-cta-benefits span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
        }

        .tk-cta-benefits i {
            color: var(--tk-accent);
            font-size: 12px;
        }

        /* ========== Footer ========== */
        .tk-footer {
            background: var(--tk-primary);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 0;
            border-top: 1px solid rgba(200, 240, 49, 0.12);
        }

        .tk-footer__grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 28px;
            padding-bottom: 36px;
        }

        @media (min-width: 768px) {
            .tk-footer__grid {
                grid-template-columns: 1.4fr 1fr 1fr 1fr;
                gap: 32px;
            }
        }

        .tk-footer__brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--tk-white);
            margin-bottom: 10px;
            letter-spacing: 0.04em;
        }

        .tk-footer__brand h3 span {
            color: var(--tk-accent);
        }

        .tk-footer__brand p {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            margin: 0;
        }

        .tk-footer__col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--tk-white);
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }

        .tk-footer__col a {
            display: block;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            padding: 5px 0;
            transition: var(--tk-transition);
        }

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

        .tk-footer__bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 18px 0;
            text-align: center;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.45);
        }

        .tk-footer__bottom a {
            color: rgba(255, 255, 255, 0.6);
            margin: 0 6px;
        }

        .tk-footer__bottom a:hover {
            color: var(--tk-accent);
        }

        /* ========== Foundation 覆盖 ========== */
        .reveal {
            border-radius: var(--tk-radius-card);
        }

        .tk-accordion {
            background: transparent;
            border: none;
        }

        .tk-accordion .accordion-item {
            background: var(--tk-white);
            border: 1px solid var(--tk-border);
            border-radius: 12px;
            margin-bottom: 10px;
            overflow: hidden;
        }

        .tk-accordion .accordion-title {
            background: var(--tk-white);
            border: none;
            font-size: 16px;
            font-weight: 600;
            color: var(--tk-primary);
            padding: 18px 20px;
            line-height: 1.4;
        }

        .tk-accordion .accordion-title:hover {
            background: rgba(200, 240, 49, 0.05);
        }

        .tk-accordion .accordion-content {
            border: none;
            background: var(--tk-white);
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--tk-text-weak);
            line-height: 1.75;
        }

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

        /* ========== 响应式微调 ========== */
        @media (max-width: 639px) {
            .tk-header {
                height: 64px;
            }
            .tk-header__logo-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }
            .tk-header__logo-text {
                font-size: 17px;
            }
            .tk-mobile-menu {
                top: 64px;
            }
            .tk-hero {
                padding-top: 80px;
            }
            .tk-stat-card__number {
                font-size: 30px;
            }
            .tk-service-card--featured .tk-service-card__image {
                height: 180px;
            }
            .tk-brand-intro {
                padding: 24px;
            }
            .tk-cta-form-card {
                padding: 22px;
            }
            .tk-footer {
                padding-top: 36px;
            }
        }

        @media (max-width: 1023px) {
            .tk-hero__grid {
                grid-template-columns: 1fr;
            }
            .tk-hero__form-card {
                max-width: 100%;
            }
        }

/* roulang page: category1 */
:root {
            --tk-primary: #10241B;
            --tk-accent: #C8F031;
            --tk-accent-hover: #B5DC24;
            --tk-charcoal: #161616;
            --tk-warm-white: #F4F6F0;
            --tk-white: #FFFFFF;
            --tk-text: #1A1A1A;
            --tk-text-weak: #4A4A4A;
            --tk-text-muted: #7A7A7A;
            --tk-border: rgba(16, 36, 27, 0.08);
            --tk-border-strong: rgba(16, 36, 27, 0.18);
            --tk-radius-card: 16px;
            --tk-radius-btn: 10px;
            --tk-radius-badge: 999px;
            --tk-shadow-sm: 0 2px 8px rgba(16, 36, 27, 0.06);
            --tk-shadow-md: 0 8px 24px rgba(16, 36, 27, 0.12);
            --tk-shadow-lg: 0 16px 48px rgba(16, 36, 27, 0.16);
            --tk-font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --tk-font-mono: 'SF Mono', 'Roboto Mono', 'Consolas', monospace;
            --tk-section-gap: 72px;
            --tk-section-gap-mobile: 48px;
            --tk-card-padding: 28px;
            --tk-transition: all 0.28s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

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

        body {
            font-family: var(--tk-font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--tk-text);
            background-color: var(--tk-warm-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        .tk-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .tk-tag {
            display: inline-block;
            padding: 6px 16px;
            border-radius: var(--tk-radius-badge);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.02em;
            line-height: 1.4;
        }

        .tk-tag--accent {
            background-color: var(--tk-accent);
            color: var(--tk-primary);
        }

        .tk-tag--dark {
            background-color: var(--tk-primary);
            color: var(--tk-accent);
            border: 1px solid rgba(200, 240, 49, 0.35);
        }

        .tk-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 30px;
            border-radius: var(--tk-radius-btn);
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 0.03em;
            cursor: pointer;
            border: 2px solid transparent;
            transition: var(--tk-transition);
            text-align: center;
        }

        .tk-btn--primary {
            background-color: var(--tk-accent);
            color: var(--tk-primary);
            border-color: var(--tk-accent);
        }

        .tk-btn--primary:hover {
            background-color: var(--tk-accent-hover);
            border-color: var(--tk-accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(200, 240, 49, 0.35);
        }

        .tk-btn--secondary {
            background-color: transparent;
            color: var(--tk-accent);
            border-color: var(--tk-accent);
        }

        .tk-btn--secondary:hover {
            background-color: rgba(200, 240, 49, 0.1);
            transform: translateY(-2px);
        }

        .tk-btn--lg {
            padding: 16px 36px;
            font-size: 16px;
        }

        .tk-btn--sm {
            padding: 10px 20px;
            font-size: 13px;
        }

        .tk-btn--ghost-light {
            background-color: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.4);
        }

        .tk-btn--ghost-light:hover {
            background-color: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.7);
        }

        /* ========== 面包屑 ========== */
        .breadcrumbs-section {
            padding: 24px 0 0;
            background-color: transparent;
        }

        .breadcrumbs {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--tk-text-muted);
        }

        .breadcrumbs a {
            color: var(--tk-text-muted);
            font-weight: 500;
        }

        .breadcrumbs a:hover {
            color: var(--tk-primary);
            text-decoration: underline;
        }

        .breadcrumbs .separator {
            color: var(--tk-border-strong);
            user-select: none;
        }

        .breadcrumbs .current {
            color: var(--tk-primary);
            font-weight: 700;
        }

        /* ========== 分类 Hero ========== */
        .category-hero {
            position: relative;
            margin-top: 20px;
            border-radius: var(--tk-radius-card);
            overflow: hidden;
            min-height: 420px;
            display: flex;
            align-items: center;
            background-image: linear-gradient(135deg, rgba(16, 36, 27, 0.85) 0%, rgba(22, 22, 22, 0.72) 100%), url('/assets/images/coverpic/cover-1.webp');
            background-size: cover;
            background-position: center;
            box-shadow: var(--tk-shadow-md);
        }

        .category-hero__overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(16, 36, 27, 0.9) 0%, rgba(22, 22, 22, 0.6) 60%, rgba(16, 36, 27, 0.5) 100%);
            z-index: 1;
        }

        .category-hero__content {
            position: relative;
            z-index: 2;
            padding: 56px 48px;
            max-width: 720px;
        }

        .category-hero__tag {
            display: inline-block;
            padding: 8px 20px;
            border-radius: var(--tk-radius-badge);
            background-color: rgba(200, 240, 49, 0.15);
            color: var(--tk-accent);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            border: 1px solid rgba(200, 240, 49, 0.3);
            margin-bottom: 20px;
        }

        .category-hero__title {
            font-size: 42px;
            font-weight: 700;
            line-height: 1.3;
            color: #ffffff;
            margin-bottom: 18px;
            letter-spacing: 0.01em;
        }

        .category-hero__title .highlight {
            color: var(--tk-accent);
        }

        .category-hero__desc {
            font-size: 17px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.85);
            max-width: 580px;
            margin-bottom: 28px;
        }

        .category-hero__actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .category-hero__stats {
            position: absolute;
            right: 48px;
            bottom: 40px;
            z-index: 2;
            display: flex;
            gap: 16px;
        }

        .hero-stat-chip {
            background-color: rgba(16, 36, 27, 0.8);
            border: 1px solid rgba(200, 240, 49, 0.35);
            border-radius: 12px;
            padding: 14px 20px;
            text-align: center;
            min-width: 100px;
        }

        .hero-stat-chip__number {
            font-family: var(--tk-font-mono);
            font-size: 24px;
            font-weight: 700;
            color: var(--tk-accent);
            line-height: 1.2;
        }

        .hero-stat-chip__label {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.7);
            white-space: nowrap;
            margin-top: 4px;
        }

        /* ========== 内容卡片网格 ========== */
        .content-section {
            padding: var(--tk-section-gap) 0;
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-header__title {
            font-size: 30px;
            font-weight: 700;
            color: var(--tk-primary);
            line-height: 1.35;
            margin-bottom: 10px;
        }

        .section-header__subtitle {
            font-size: 16px;
            color: var(--tk-text-weak);
            max-width: 640px;
            line-height: 1.7;
        }

        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .service-card {
            background-color: var(--tk-white);
            border-radius: var(--tk-radius-card);
            overflow: hidden;
            border: 1px solid var(--tk-border);
            box-shadow: var(--tk-shadow-sm);
            transition: var(--tk-transition);
            display: flex;
            flex-direction: column;
        }

        .service-card:hover {
            box-shadow: var(--tk-shadow-md);
            transform: translateY(-4px);
            border-color: var(--tk-border-strong);
        }

        .service-card__image {
            width: 100%;
            height: 190px;
            object-fit: cover;
            background-color: var(--tk-warm-white);
        }

        .service-card__body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .service-card__title {
            font-size: 18px;
            font-weight: 700;
            color: var(--tk-primary);
            line-height: 1.4;
            margin-bottom: 10px;
        }

        .service-card__desc {
            font-size: 14px;
            color: var(--tk-text-weak);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }

        .service-card__link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 700;
            color: var(--tk-primary);
            transition: var(--tk-transition);
        }

        .service-card__link .arrow {
            display: inline-block;
            transition: transform 0.2s ease;
        }

        .service-card__link:hover {
            color: var(--tk-accent-hover);
        }

        .service-card__link:hover .arrow {
            transform: translateX(4px);
        }

        /* ========== 品牌介绍区块 ========== */
        .brand-intro-section {
            padding: var(--tk-section-gap) 0;
            background-color: var(--tk-primary);
            border-radius: var(--tk-radius-card);
            margin-bottom: var(--tk-section-gap);
        }

        .brand-intro-section .tk-container {
            padding: 56px 48px;
        }

        .brand-intro-section__title {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            line-height: 1.4;
        }

        .brand-intro-section__title .highlight {
            color: var(--tk-accent);
        }

        .brand-intro-section__text {
            font-size: 16px;
            line-height: 1.85;
            color: rgba(255, 255, 255, 0.88);
            max-width: 880px;
        }

        .brand-intro-section__text strong {
            color: var(--tk-accent);
            font-weight: 600;
        }

        /* ========== 数据徽章区 ========== */
        .stats-section {
            padding: 0 0 var(--tk-section-gap);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background-color: var(--tk-white);
            border-radius: var(--tk-radius-card);
            padding: 28px 24px;
            text-align: center;
            border: 1px solid var(--tk-border);
            box-shadow: var(--tk-shadow-sm);
            transition: var(--tk-transition);
        }

        .stat-card:hover {
            box-shadow: var(--tk-shadow-md);
            transform: translateY(-3px);
        }

        .stat-card__number {
            font-family: var(--tk-font-mono);
            font-size: 40px;
            font-weight: 700;
            color: var(--tk-primary);
            line-height: 1.2;
            margin-bottom: 8px;
        }

        .stat-card__label {
            font-size: 14px;
            color: var(--tk-text-weak);
            font-weight: 500;
        }

        .stat-card__badge {
            display: inline-block;
            margin-top: 10px;
            padding: 4px 12px;
            border-radius: var(--tk-radius-badge);
            background-color: rgba(200, 240, 49, 0.15);
            color: var(--tk-primary);
            font-size: 12px;
            font-weight: 600;
        }

        /* ========== CTA 转化区 ========== */
        .cta-section {
            padding: var(--tk-section-gap) 0;
            background: linear-gradient(135deg, var(--tk-primary) 0%, var(--tk-charcoal) 100%);
            border-radius: var(--tk-radius-card);
            margin-bottom: var(--tk-section-gap);
        }

        .cta-section .tk-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            padding: 56px 48px;
        }

        .cta-section__info-title {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            line-height: 1.4;
            margin-bottom: 14px;
        }

        .cta-section__info-title .highlight {
            color: var(--tk-accent);
        }

        .cta-section__info-desc {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
        }

        .cta-form-card {
            background-color: var(--tk-white);
            border-radius: var(--tk-radius-card);
            padding: 32px;
            box-shadow: var(--tk-shadow-lg);
        }

        .cta-form-card__title {
            font-size: 20px;
            font-weight: 700;
            color: var(--tk-primary);
            margin-bottom: 20px;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--tk-text-weak);
            margin-bottom: 6px;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--tk-border-strong);
            border-radius: 8px;
            font-size: 14px;
            color: var(--tk-text);
            background-color: var(--tk-warm-white);
            transition: var(--tk-transition);
            outline: none;
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--tk-accent);
            box-shadow: 0 0 0 3px rgba(200, 240, 49, 0.15);
        }

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

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

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

            .category-hero__title {
                font-size: 34px;
            }

            .category-hero__stats {
                position: relative;
                right: auto;
                bottom: auto;
                padding: 0 48px 32px;
                flex-wrap: wrap;
                z-index: 2;
            }

            .cta-section .tk-container {
                grid-template-columns: 1fr;
                gap: 28px;
                padding: 40px 32px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --tk-section-gap: 48px;
                --tk-card-padding: 20px;
            }

            .tk-container {
                padding: 0 16px;
            }

            .category-hero {
                min-height: 340px;
                border-radius: 12px;
            }

            .category-hero__content {
                padding: 36px 24px;
            }

            .category-hero__title {
                font-size: 28px;
            }

            .category-hero__desc {
                font-size: 15px;
            }

            .category-hero__actions {
                flex-direction: column;
                gap: 10px;
            }

            .category-hero__stats {
                padding: 0 24px 24px;
                gap: 10px;
            }

            .hero-stat-chip {
                min-width: 80px;
                padding: 10px 14px;
            }

            .hero-stat-chip__number {
                font-size: 18px;
            }

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

            .section-header__title {
                font-size: 24px;
            }

            .stats-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .stat-card__number {
                font-size: 32px;
            }

            .brand-intro-section .tk-container {
                padding: 36px 24px;
            }

            .brand-intro-section__title {
                font-size: 22px;
            }

            .cta-section .tk-container {
                padding: 32px 20px;
            }

            .cta-section__info-title {
                font-size: 22px;
            }

            .cta-form-card {
                padding: 22px 18px;
            }
        }

        @media (max-width: 520px) {
            .category-hero {
                min-height: 300px;
            }

            .category-hero__title {
                font-size: 24px;
            }

            .category-hero__content {
                padding: 28px 18px;
            }

            .category-hero__stats {
                padding: 0 18px 20px;
                flex-wrap: wrap;
            }

            .service-card__image {
                height: 160px;
            }

            .service-card__body {
                padding: 18px;
            }

            .tk-btn--lg {
                padding: 14px 28px;
                font-size: 14px;
                width: 100%;
            }
        }

/* roulang page: category2 */
:root {
            --tk-primary: #10241B;
            --tk-accent: #C8F031;
            --tk-accent-hover: #B5DC24;
            --tk-charcoal: #161616;
            --tk-warm-white: #F4F6F0;
            --tk-white: #FFFFFF;
            --tk-text: #161616;
            --tk-text-weak: #4A4A4A;
            --tk-text-muted: #6B7280;
            --tk-border: rgba(16, 36, 27, 0.08);
            --tk-border-strong: rgba(16, 36, 27, 0.18);
            --tk-radius-card: 18px;
            --tk-radius-btn: 10px;
            --tk-radius-badge: 999px;
            --tk-shadow-sm: 0 2px 8px rgba(16, 36, 27, 0.06);
            --tk-shadow-md: 0 8px 24px rgba(16, 36, 27, 0.12);
            --tk-shadow-lg: 0 16px 40px rgba(16, 36, 27, 0.18);
            --tk-font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --tk-font-mono: 'SF Mono', 'Roboto Mono', 'Consolas', monospace;
            --tk-section-gap: 80px;
            --tk-section-gap-mobile: 48px;
            --tk-card-padding: 28px;
            --tk-transition: all 0.25s ease;
            --accent: #C8F031;
        }

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

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

        body {
            font-family: var(--tk-font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--tk-text);
            background-color: var(--tk-warm-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

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

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

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

        .tk-container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .tk-container--wide {
            max-width: 1400px;
        }

        .tk-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--tk-radius-btn);
            font-weight: 600;
            font-size: 15px;
            font-family: var(--tk-font-sans);
            cursor: pointer;
            transition: var(--tk-transition);
            border: 2px solid transparent;
            line-height: 1.4;
            text-align: center;
            text-decoration: none;
            white-space: nowrap;
        }

        .tk-btn--primary {
            background-color: var(--tk-accent);
            color: var(--tk-primary);
            border-color: var(--tk-accent);
        }

        .tk-btn--primary:hover {
            background-color: var(--tk-accent-hover);
            border-color: var(--tk-accent-hover);
            color: var(--tk-primary);
            transform: translateY(-2px);
            box-shadow: var(--tk-shadow-md);
        }

        .tk-btn--secondary {
            background-color: transparent;
            color: var(--tk-accent);
            border-color: var(--tk-accent);
        }

        .tk-btn--secondary:hover {
            background-color: rgba(200, 240, 49, 0.1);
            color: var(--tk-accent);
            transform: translateY(-2px);
        }

        .tk-btn--ghost-light {
            background-color: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.4);
        }

        .tk-btn--ghost-light:hover {
            background-color: rgba(255, 255, 255, 0.1);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.7);
        }

        .tk-btn--sm {
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 8px;
        }

        .tk-btn--lg {
            padding: 16px 32px;
            font-size: 16px;
            border-radius: 10px;
        }

        .tk-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: var(--tk-radius-badge);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.02em;
            line-height: 1.6;
            transition: var(--tk-transition);
        }

        .tk-tag--accent {
            background-color: var(--tk-accent);
            color: var(--tk-primary);
        }

        .tk-tag--dark {
            background-color: var(--tk-primary);
            color: var(--tk-accent);
            border: 1px solid rgba(200, 240, 49, 0.3);
        }

        .tk-tag--outline {
            background-color: transparent;
            color: var(--tk-primary);
            border: 1px solid var(--tk-border-strong);
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-section {
            padding: 16px 0;
            background-color: transparent;
            border-bottom: 1px solid var(--tk-border);
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--tk-text-muted);
            flex-wrap: wrap;
            list-style: none;
        }

        .breadcrumb-nav li {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb-nav li+li::before {
            content: '/';
            color: var(--tk-text-muted);
            font-size: 12px;
        }

        .breadcrumb-nav a {
            color: var(--tk-text-weak);
            text-decoration: none;
            transition: var(--tk-transition);
        }

        .breadcrumb-nav a:hover {
            color: var(--tk-primary);
            text-decoration: underline;
        }

        .breadcrumb-nav .current {
            color: var(--tk-primary);
            font-weight: 600;
        }

        /* ========== Hero ========== */
        .category-hero {
            position: relative;
            min-height: 440px;
            display: flex;
            align-items: center;
            overflow: hidden;
            background-color: var(--tk-primary);
            padding: 56px 0;
            isolation: isolate;
        }

        .category-hero__bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -2;
            object-fit: cover;
        }

        .category-hero__overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            background: linear-gradient(135deg, rgba(16, 36, 27, 0.88) 0%, rgba(22, 22, 22, 0.78) 100%);
        }

        .category-hero__content {
            max-width: 720px;
            color: #fff;
        }

        .category-hero__tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background-color: var(--tk-accent);
            color: var(--tk-primary);
            padding: 5px 16px;
            border-radius: var(--tk-radius-badge);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.03em;
            margin-bottom: 20px;
        }

        .category-hero h1 {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
            color: #fff;
            letter-spacing: -0.01em;
        }

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

        .category-hero__desc {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 28px;
            max-width: 620px;
        }

        .category-hero__actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .category-hero__badge-group {
            display: flex;
            gap: 12px;
            margin-top: 28px;
            flex-wrap: wrap;
        }

        .hero-stat-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background-color: rgba(16, 36, 27, 0.6);
            border: 1px solid rgba(200, 240, 49, 0.4);
            border-radius: 12px;
            padding: 8px 16px;
            font-size: 13px;
            color: #fff;
            font-weight: 500;
            font-family: var(--tk-font-mono);
            letter-spacing: 0.02em;
        }

        .hero-stat-badge strong {
            color: var(--tk-accent);
            font-weight: 700;
        }

        /* ========== 数据对比表区 ========== */
        .compare-section {
            padding: var(--tk-section-gap) 0;
            background-color: var(--tk-warm-white);
        }

        .compare-section__header {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            gap: 24px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }

        .compare-section__title {
            font-size: 28px;
            font-weight: 700;
            color: var(--tk-primary);
            line-height: 1.35;
            letter-spacing: -0.01em;
        }

        .compare-section__title .accent {
            color: var(--tk-accent);
            -webkit-text-stroke: 1px var(--tk-primary);
            text-shadow: 0 0 0 var(--tk-primary);
        }

        .compare-section__desc {
            font-size: 15px;
            color: var(--tk-text-weak);
            line-height: 1.7;
            max-width: 420px;
        }

        .compare-table-wrap {
            border-radius: var(--tk-radius-card);
            overflow: hidden;
            box-shadow: var(--tk-shadow-md);
            background-color: var(--tk-white);
            border: 1px solid var(--tk-border);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 15px;
            line-height: 1.6;
        }

        .compare-table thead th {
            background-color: var(--tk-primary);
            color: #fff;
            padding: 18px 20px;
            text-align: left;
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.02em;
            border-bottom: 2px solid var(--tk-accent);
        }

        .compare-table thead th:first-child {
            border-radius: 18px 0 0 0;
        }

        .compare-table thead th:last-child {
            border-radius: 0 18px 0 0;
        }

        .compare-table tbody td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--tk-border);
            color: var(--tk-text);
            font-size: 14px;
            vertical-align: middle;
        }

        .compare-table tbody tr:last-child td {
            border-bottom: none;
        }

        .compare-table tbody tr:hover td {
            background-color: rgba(200, 240, 49, 0.06);
        }

        .compare-table .highlight-row td {
            background-color: rgba(200, 240, 49, 0.15);
            border-bottom: 2px solid var(--tk-accent);
            font-weight: 500;
        }

        .compare-table .highlight-row td:first-child {
            border-left: 4px solid var(--tk-accent);
        }

        .compare-table .dim-label {
            font-weight: 600;
            color: var(--tk-primary);
            font-size: 14px;
        }

        .compare-table .old-value {
            color: var(--tk-text-muted);
            text-decoration: line-through;
            font-size: 13px;
        }

        .compare-table .new-value {
            color: var(--tk-primary);
            font-weight: 700;
            font-size: 15px;
            font-family: var(--tk-font-mono);
        }

        .compare-table .trend-up {
            display: inline-block;
            background-color: var(--tk-accent);
            color: var(--tk-primary);
            font-size: 11px;
            font-weight: 700;
            padding: 2px 10px;
            border-radius: var(--tk-radius-badge);
            margin-left: 8px;
            letter-spacing: 0.02em;
        }

        /* ========== 指标徽章行 ========== */
        .metrics-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 36px;
        }

        .metric-card {
            background-color: var(--tk-white);
            border: 1px solid var(--tk-border);
            border-radius: var(--tk-radius-card);
            padding: 24px 22px;
            text-align: center;
            transition: var(--tk-transition);
            box-shadow: var(--tk-shadow-sm);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            min-height: 150px;
        }

        .metric-card:hover {
            box-shadow: var(--tk-shadow-md);
            transform: translateY(-4px);
            border-color: rgba(200, 240, 49, 0.5);
        }

        .metric-card__number {
            font-size: 42px;
            font-weight: 700;
            font-family: var(--tk-font-mono);
            color: var(--tk-primary);
            line-height: 1.1;
            letter-spacing: -0.02em;
            margin-bottom: 8px;
        }

        .metric-card__number .accent {
            color: var(--tk-accent);
        }

        .metric-card__label {
            font-size: 14px;
            color: var(--tk-text-weak);
            font-weight: 500;
            line-height: 1.5;
        }

        .metric-card__badge {
            display: inline-block;
            background-color: var(--tk-accent);
            color: var(--tk-primary);
            font-size: 11px;
            font-weight: 700;
            padding: 3px 12px;
            border-radius: var(--tk-radius-badge);
            margin-top: 10px;
            letter-spacing: 0.02em;
        }

        /* ========== 数据洞察卡片 ========== */
        .insight-section {
            padding: var(--tk-section-gap) 0;
            background-color: #fff;
            border-top: 1px solid var(--tk-border);
            border-bottom: 1px solid var(--tk-border);
        }

        .insight-section__header {
            text-align: left;
            margin-bottom: 36px;
        }

        .insight-section__title {
            font-size: 26px;
            font-weight: 700;
            color: var(--tk-primary);
            line-height: 1.35;
            margin-bottom: 10px;
        }

        .insight-section__desc {
            font-size: 15px;
            color: var(--tk-text-weak);
            line-height: 1.7;
            max-width: 580px;
        }

        .insight-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }

        .insight-card {
            background-color: var(--tk-warm-white);
            border: 1px solid var(--tk-border);
            border-radius: var(--tk-radius-card);
            padding: 26px 24px;
            transition: var(--tk-transition);
            box-shadow: var(--tk-shadow-sm);
            display: flex;
            flex-direction: column;
        }

        .insight-card:hover {
            box-shadow: var(--tk-shadow-md);
            transform: translateY(-4px);
            border-color: rgba(200, 240, 49, 0.6);
        }

        .insight-card__icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background-color: var(--tk-primary);
            color: var(--tk-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            font-family: var(--tk-font-mono);
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        .insight-card__title {
            font-size: 18px;
            font-weight: 600;
            color: var(--tk-primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .insight-card__text {
            font-size: 14px;
            color: var(--tk-text-weak);
            line-height: 1.7;
            flex-grow: 1;
            margin-bottom: 16px;
        }

        .insight-card__link {
            font-size: 14px;
            font-weight: 600;
            color: var(--tk-primary);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--tk-transition);
        }

        .insight-card__link:hover {
            color: var(--tk-accent-hover);
            gap: 10px;
        }

        .insight-card__link::after {
            content: '→';
            font-weight: 700;
            transition: var(--tk-transition);
        }

        /* ========== 品牌介绍 ========== */
        .brand-section {
            padding: var(--tk-section-gap) 0;
            background-color: var(--tk-warm-white);
        }

        .brand-block {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 40px;
            align-items: start;
            background-color: #fff;
            border: 1px solid var(--tk-border);
            border-radius: 20px;
            padding: 36px 32px;
            box-shadow: var(--tk-shadow-sm);
        }

        .brand-block__label {
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--tk-accent);
            margin-bottom: 12px;
            display: block;
        }

        .brand-block__title {
            font-size: 24px;
            font-weight: 700;
            color: var(--tk-primary);
            line-height: 1.35;
            margin-bottom: 14px;
        }

        .brand-block__text {
            font-size: 15px;
            color: var(--tk-text-weak);
            line-height: 1.85;
        }

        .brand-block__text strong {
            color: var(--tk-primary);
            font-weight: 600;
        }

        /* ========== 适用场景 ========== */
        .scene-section {
            padding: var(--tk-section-gap) 0;
            background-color: #fff;
            border-top: 1px solid var(--tk-border);
        }

        .scene-section__header {
            margin-bottom: 36px;
        }

        .scene-section__title {
            font-size: 26px;
            font-weight: 700;
            color: var(--tk-primary);
            line-height: 1.35;
            margin-bottom: 10px;
        }

        .scene-section__desc {
            font-size: 15px;
            color: var(--tk-text-weak);
            line-height: 1.7;
            max-width: 580px;
        }

        .scene-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 22px;
        }

        .scene-card {
            display: flex;
            gap: 18px;
            background-color: var(--tk-warm-white);
            border: 1px solid var(--tk-border);
            border-radius: var(--tk-radius-card);
            padding: 22px 20px;
            transition: var(--tk-transition);
            box-shadow: var(--tk-shadow-sm);
        }

        .scene-card:hover {
            box-shadow: var(--tk-shadow-md);
            transform: translateY(-3px);
            border-color: rgba(200, 240, 49, 0.5);
        }

        .scene-card__index {
            font-size: 32px;
            font-weight: 700;
            font-family: var(--tk-font-mono);
            color: var(--tk-accent);
            line-height: 1;
            flex-shrink: 0;
            width: 50px;
            text-align: center;
        }

        .scene-card__content {
            flex: 1;
        }

        .scene-card__title {
            font-size: 18px;
            font-weight: 600;
            color: var(--tk-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .scene-card__text {
            font-size: 14px;
            color: var(--tk-text-weak);
            line-height: 1.7;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: var(--tk-section-gap) 0;
            background-color: var(--tk-warm-white);
            border-top: 1px solid var(--tk-border);
        }

        .faq-section__header {
            text-align: left;
            margin-bottom: 36px;
        }

        .faq-section__title {
            font-size: 26px;
            font-weight: 700;
            color: var(--tk-primary);
            line-height: 1.35;
            margin-bottom: 10px;
        }

        .faq-section__desc {
            font-size: 15px;
            color: var(--tk-text-weak);
            line-height: 1.7;
            max-width: 580px;
        }

        .faq-list {
            list-style: none;
            max-width: 820px;
        }

        .faq-item {
            background-color: #fff;
            border: 1px solid var(--tk-border);
            border-radius: 14px;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--tk-shadow-sm);
            transition: var(--tk-transition);
        }

        .faq-item:hover {
            border-color: rgba(200, 240, 49, 0.6);
            box-shadow: var(--tk-shadow-md);
        }

        .faq-item__question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--tk-primary);
            line-height: 1.5;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--tk-font-sans);
            transition: var(--tk-transition);
            gap: 16px;
        }

        .faq-item__question:hover {
            color: var(--tk-primary);
            background-color: rgba(200, 240, 49, 0.04);
        }

        .faq-item__icon {
            font-size: 22px;
            font-weight: 400;
            color: var(--tk-accent);
            flex-shrink: 0;
            line-height: 1;
            transition: transform 0.3s ease;
        }

        .faq-item__answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
            font-size: 14px;
            color: var(--tk-text-weak);
            line-height: 1.8;
        }

        .faq-item__answer-inner {
            padding-bottom: 18px;
            border-top: 1px solid var(--tk-border);
            padding-top: 14px;
        }

        .faq-item.open .faq-item__icon {
            transform: rotate(45deg);
        }

        .faq-item.open .faq-item__answer {
            max-height: 400px;
            padding: 0 22px 18px;
        }

        /* ========== CTA转化区 ========== */
        .cta-section {
            padding: var(--tk-section-gap) 0;
            background: linear-gradient(135deg, #10241B 0%, #161616 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background-color: rgba(200, 240, 49, 0.08);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background-color: rgba(200, 240, 49, 0.05);
            pointer-events: none;
        }

        .cta-card {
            background-color: #fff;
            border-radius: 20px;
            padding: 40px 36px;
            max-width: 680px;
            margin: 0 auto;
            box-shadow: var(--tk-shadow-lg);
            position: relative;
            z-index: 1;
        }

        .cta-card__title {
            font-size: 24px;
            font-weight: 700;
            color: var(--tk-primary);
            line-height: 1.35;
            margin-bottom: 10px;
            text-align: center;
        }

        .cta-card__desc {
            font-size: 15px;
            color: var(--tk-text-weak);
            line-height: 1.7;
            text-align: center;
            margin-bottom: 28px;
        }

        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .cta-form__row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .cta-form__field {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .cta-form__label {
            font-size: 13px;
            font-weight: 600;
            color: var(--tk-primary);
            letter-spacing: 0.02em;
        }

        .cta-form__input,
        .cta-form__select,
        .cta-form__textarea {
            padding: 12px 16px;
            border: 1px solid var(--tk-border-strong);
            border-radius: 8px;
            font-size: 15px;
            font-family: var(--tk-font-sans);
            color: var(--tk-text);
            background-color: #fff;
            transition: var(--tk-transition);
            width: 100%;
            -webkit-appearance: none;
            appearance: none;
        }

        .cta-form__input:focus,
        .cta-form__select:focus,
        .cta-form__textarea:focus {
            border-color: var(--tk-accent);
            box-shadow: 0 0 0 3px rgba(200, 240, 49, 0.2);
        }

        .cta-form__textarea {
            resize: vertical;
            min-height: 100px;
        }

        .cta-form__submit {
            margin-top: 8px;
            width: 100%;
        }

        .cta-form__privacy {
            font-size: 12px;
            color: var(--tk-text-muted);
            text-align: center;
            margin-top: 12px;
            line-height: 1.6;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .category-hero h1 {
                font-size: 34px;
            }

            .metrics-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .insight-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }

            .brand-block {
                grid-template-columns: 1fr;
                gap: 20px;
                padding: 28px 24px;
            }

            .scene-grid {
                grid-template-columns: 1fr 1fr;
                gap: 18px;
            }

            .compare-section__header {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --tk-section-gap: 56px;
                --tk-card-padding: 20px;
            }

            .category-hero {
                min-height: 380px;
                padding: 40px 0;
            }

            .category-hero h1 {
                font-size: 28px;
                line-height: 1.35;
            }

            .category-hero__desc {
                font-size: 15px;
                line-height: 1.7;
            }

            .category-hero__actions {
                flex-direction: column;
                align-items: stretch;
            }

            .category-hero__actions .tk-btn {
                width: 100%;
            }

            .metrics-row {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }

            .metric-card {
                padding: 18px 16px;
                min-height: 120px;
            }

            .metric-card__number {
                font-size: 32px;
            }

            .insight-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .scene-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .compare-table {
                font-size: 13px;
            }

            .compare-table thead th,
            .compare-table tbody td {
                padding: 12px 14px;
                font-size: 13px;
            }

            .compare-table .new-value {
                font-size: 13px;
            }

            .cta-card {
                padding: 28px 20px;
                border-radius: 16px;
            }

            .cta-form__row {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .cta-card__title {
                font-size: 20px;
            }

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

            .faq-item__answer {
                font-size: 13px;
                padding: 0 18px;
            }

            .brand-block {
                padding: 24px 18px;
                border-radius: 16px;
            }

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

            .brand-block__text {
                font-size: 14px;
                line-height: 1.75;
            }
        }

        @media (max-width: 520px) {
            :root {
                --tk-section-gap: 40px;
            }

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

            .category-hero {
                min-height: 340px;
                padding: 32px 0;
            }

            .category-hero h1 {
                font-size: 24px;
            }

            .category-hero__desc {
                font-size: 14px;
                line-height: 1.65;
            }

            .category-hero__tag {
                font-size: 11px;
                padding: 4px 12px;
            }

            .metrics-row {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .metric-card {
                min-height: 100px;
                padding: 16px;
            }

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

            .compare-section__title {
                font-size: 22px;
            }

            .insight-section__title,
            .scene-section__title,
            .faq-section__title {
                font-size: 22px;
            }

            .compare-table thead th,
            .compare-table tbody td {
                padding: 10px 10px;
                font-size: 12px;
            }

            .compare-table .trend-up {
                font-size: 10px;
                padding: 1px 6px;
                margin-left: 4px;
            }

            .hero-stat-badge {
                font-size: 11px;
                padding: 6px 12px;
            }

            .cta-card {
                padding: 22px 16px;
            }

            .cta-card__title {
                font-size: 18px;
            }

            .cta-card__desc {
                font-size: 13px;
            }

            .cta-form__input,
            .cta-form__select,
            .cta-form__textarea {
                font-size: 14px;
                padding: 10px 14px;
            }

            .breadcrumb-nav {
                font-size: 12px;
            }
        }

/* roulang page: category3 */
:root {
            --tk-primary: #10241B;
            --tk-accent: #C8F031;
            --tk-accent-hover: #B5DC24;
            --tk-charcoal: #161616;
            --tk-warm-white: #F4F6F0;
            --tk-white: #FFFFFF;
            --tk-text: #1A2E26;
            --tk-text-weak: #4A5D55;
            --tk-text-muted: #7A8D85;
            --tk-border: rgba(16, 36, 27, 0.08);
            --tk-border-strong: rgba(16, 36, 27, 0.16);
            --tk-radius-card: 20px;
            --tk-radius-btn: 10px;
            --tk-radius-badge: 999px;
            --tk-shadow-sm: 0 2px 8px rgba(16, 36, 27, 0.06);
            --tk-shadow-md: 0 8px 24px rgba(16, 36, 27, 0.12);
            --tk-shadow-lg: 0 16px 40px rgba(16, 36, 27, 0.18);
            --tk-font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --tk-font-mono: "SF Mono", "Roboto Mono", Consolas, monospace;
            --tk-section-gap: 72px;
            --tk-section-gap-mobile: 44px;
            --tk-card-padding: 28px;
            --tk-transition: 0.25s ease;
        }

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

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

        body {
            font-family: var(--tk-font-sans);
            line-height: 1.7;
            color: var(--tk-text);
            background-color: var(--tk-warm-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }

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

        .tk-container {
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .tk-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: var(--tk-radius-badge);
            font-size: 13px;
            font-weight: 600;
            line-height: 1.4;
            white-space: nowrap;
            transition: background-color var(--tk-transition), color var(--tk-transition);
        }

        .tk-tag--accent {
            background-color: var(--tk-accent);
            color: var(--tk-primary);
        }

        .tk-tag--dark {
            background-color: var(--tk-primary);
            color: var(--tk-accent);
            border: 1px solid rgba(200, 240, 49, 0.35);
        }

        .tk-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 24px;
            border-radius: var(--tk-radius-btn);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            text-align: center;
            transition: all var(--tk-transition);
            border: 2px solid transparent;
            min-width: 140px;
        }

        .tk-btn:focus-visible {
            outline: 2px solid var(--tk-accent);
            outline-offset: 3px;
        }

        .tk-btn--primary {
            background-color: var(--tk-accent);
            color: var(--tk-primary);
            box-shadow: 0 4px 14px rgba(200, 240, 49, 0.25);
        }

        .tk-btn--primary:hover {
            background-color: var(--tk-accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(200, 240, 49, 0.32);
            color: var(--tk-primary);
        }

        .tk-btn--primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(200, 240, 49, 0.2);
        }

        .tk-btn--secondary {
            background-color: transparent;
            color: var(--tk-accent);
            border-color: var(--tk-accent);
        }

        .tk-btn--secondary:hover {
            background-color: rgba(200, 240, 49, 0.1);
            transform: translateY(-2px);
            color: var(--tk-accent);
        }

        .tk-btn--ghost-light {
            background-color: transparent;
            color: var(--tk-white);
            border-color: rgba(255, 255, 255, 0.5);
        }

        .tk-btn--ghost-light:hover {
            background-color: rgba(255, 255, 255, 0.1);
            border-color: var(--tk-white);
            color: var(--tk-white);
        }

        .tk-btn--sm {
            padding: 9px 18px;
            font-size: 13px;
            min-width: 100px;
        }

        .tk-btn--lg {
            padding: 16px 32px;
            font-size: 16px;
            min-width: 180px;
        }

        .category3-breadcrumb {
            background-color: var(--tk-primary);
            padding: 16px 0;
            border-bottom: 1px solid rgba(200, 240, 49, 0.18);
        }

        .category3-breadcrumb .tk-container {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(244, 246, 240, 0.7);
        }

        .category3-breadcrumb a {
            color: rgba(244, 246, 240, 0.7);
            transition: color var(--tk-transition);
        }

        .category3-breadcrumb a:hover {
            color: var(--tk-accent);
        }

        .category3-breadcrumb .sep {
            color: rgba(200, 240, 49, 0.5);
            font-size: 11px;
        }

        .category3-breadcrumb .current {
            color: var(--tk-accent);
            font-weight: 600;
        }

        .category3-hero {
            position: relative;
            min-height: 440px;
            background-image: linear-gradient(135deg, rgba(16, 36, 27, 0.9) 0%, rgba(22, 22, 22, 0.82) 100%), url('/assets/images/coverpic/cover-3.webp');
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
            padding: 64px 0 72px;
            overflow: hidden;
        }

        .category3-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--tk-accent) 0%, rgba(200, 240, 49, 0.4) 60%, transparent 100%);
        }

        .category3-hero .tk-container {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .category3-hero-card {
            max-width: 720px;
            background: rgba(16, 36, 27, 0.55);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-radius: var(--tk-radius-card);
            padding: 40px 36px;
            border: 1px solid rgba(200, 240, 49, 0.22);
            box-shadow: var(--tk-shadow-lg);
        }

        .category3-hero-card .badge-row {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }

        .category3-hero-card h1 {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--tk-white);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .category3-hero-card h1 .accent-text {
            color: var(--tk-accent);
        }

        .category3-hero-card .hero-sub {
            font-size: 16px;
            color: rgba(244, 246, 240, 0.85);
            line-height: 1.8;
            margin-bottom: 24px;
            max-width: 600px;
        }

        .category3-hero-card .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .category3-countdown-strip {
            background-color: var(--tk-charcoal);
            border-bottom: 1px solid rgba(200, 240, 49, 0.16);
            padding: 18px 0;
        }

        .category3-countdown-strip .tk-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .countdown-label {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--tk-warm-white);
            font-size: 14px;
            font-weight: 500;
        }

        .countdown-label .dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--tk-accent);
            animation: pulse-dot 1.8s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.4); }
        }

        .countdown-timer {
            display: flex;
            align-items: center;
            gap: 8px;
            font-family: var(--tk-font-mono);
            font-size: 18px;
            font-weight: 600;
            color: var(--tk-accent);
            letter-spacing: 0.04em;
        }

        .countdown-timer .time-unit {
            background-color: rgba(200, 240, 49, 0.08);
            border: 1px solid rgba(200, 240, 49, 0.25);
            border-radius: 8px;
            padding: 6px 10px;
            min-width: 48px;
            text-align: center;
            color: var(--tk-warm-white);
        }

        .countdown-timer .time-sep {
            color: rgba(200, 240, 49, 0.6);
            font-weight: 700;
        }

        .category3-main {
            flex: 1;
            background-color: var(--tk-warm-white);
            padding-bottom: var(--tk-section-gap);
        }

        .category3-section {
            padding-top: var(--tk-section-gap);
        }

        .category3-section--timeline {
            background-color: var(--tk-white);
            border-radius: var(--tk-radius-card);
            border: 1px solid var(--tk-border);
            box-shadow: var(--tk-shadow-sm);
            padding: 40px 36px;
            margin-top: 40px;
        }

        .section-heading {
            margin-bottom: 32px;
        }

        .section-heading h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--tk-primary);
            line-height: 1.35;
            margin-bottom: 8px;
            letter-spacing: 0.01em;
        }

        .section-heading p {
            font-size: 15px;
            color: var(--tk-text-weak);
            line-height: 1.7;
            max-width: 640px;
        }

        .timeline-list {
            position: relative;
            padding-left: 28px;
            list-style: none;
        }

        .timeline-list::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 4px;
            bottom: 4px;
            width: 3px;
            background: rgba(200, 240, 49, 0.3);
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            padding-bottom: 28px;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -26px;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background-color: var(--tk-accent);
            border: 3px solid var(--tk-primary);
            box-shadow: 0 0 0 4px rgba(200, 240, 49, 0.2);
        }

        .timeline-item .time-ago {
            display: inline-block;
            font-family: var(--tk-font-mono);
            font-size: 12px;
            font-weight: 600;
            color: var(--tk-text-muted);
            background-color: var(--tk-warm-white);
            padding: 3px 12px;
            border-radius: var(--tk-radius-badge);
            margin-bottom: 8px;
            letter-spacing: 0.03em;
        }

        .timeline-item h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--tk-text);
            margin-bottom: 6px;
            line-height: 1.45;
        }

        .timeline-item p {
            font-size: 14px;
            color: var(--tk-text-weak);
            line-height: 1.7;
            max-width: 640px;
        }

        .timeline-item .timeline-status {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--tk-primary);
            background-color: var(--tk-accent);
            padding: 4px 12px;
            border-radius: var(--tk-radius-badge);
            margin-top: 10px;
        }

        .activity-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            margin-top: 24px;
        }

        .activity-card {
            background-color: var(--tk-white);
            border-radius: var(--tk-radius-card);
            overflow: hidden;
            border: 1px solid var(--tk-border);
            box-shadow: var(--tk-shadow-sm);
            transition: box-shadow var(--tk-transition), transform var(--tk-transition);
            display: flex;
            flex-direction: column;
        }

        .activity-card:hover {
            box-shadow: var(--tk-shadow-md);
            transform: translateY(-3px);
        }

        .activity-card .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }

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

        .activity-card .card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--tk-text);
            line-height: 1.45;
            margin-bottom: 8px;
        }

        .activity-card .card-desc {
            font-size: 14px;
            color: var(--tk-text-weak);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }

        .activity-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--tk-text-muted);
            border-top: 1px solid var(--tk-border);
            padding-top: 14px;
        }

        .activity-card .card-meta .meta-chip {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-weight: 500;
        }

        .activity-card .card-meta .meta-chip .icon {
            font-size: 14px;
        }

        .cta-section {
            margin-top: var(--tk-section-gap);
            background: linear-gradient(135deg, var(--tk-primary) 0%, var(--tk-charcoal) 100%);
            border-radius: var(--tk-radius-card);
            padding: 48px 40px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            box-shadow: var(--tk-shadow-lg);
            border: 1px solid rgba(200, 240, 49, 0.16);
        }

        .cta-section .cta-left h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--tk-white);
            line-height: 1.35;
            margin-bottom: 12px;
        }

        .cta-section .cta-left h2 .accent-text {
            color: var(--tk-accent);
        }

        .cta-section .cta-left p {
            font-size: 15px;
            color: rgba(244, 246, 240, 0.8);
            line-height: 1.8;
            max-width: 460px;
        }

        .cta-section .cta-form {
            background-color: var(--tk-white);
            border-radius: var(--tk-radius-card);
            padding: 28px 24px;
            box-shadow: var(--tk-shadow-md);
        }

        .cta-form .form-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--tk-text);
            margin-bottom: 16px;
        }

        .cta-form .form-group {
            margin-bottom: 14px;
        }

        .cta-form label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--tk-text-weak);
            margin-bottom: 5px;
        }

        .cta-form input,
        .cta-form select,
        .cta-form textarea {
            width: 100%;
            padding: 11px 14px;
            border: 1px solid var(--tk-border-strong);
            border-radius: 8px;
            font-size: 14px;
            background-color: var(--tk-warm-white);
            transition: border-color var(--tk-transition), box-shadow var(--tk-transition);
            appearance: none;
            -webkit-appearance: none;
        }

        .cta-form input:focus,
        .cta-form select:focus,
        .cta-form textarea:focus {
            outline: none;
            border-color: var(--tk-accent);
            box-shadow: 0 0 0 3px rgba(200, 240, 49, 0.2);
            background-color: var(--tk-white);
        }

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

        .cta-form .form-submit {
            width: 100%;
            margin-top: 4px;
        }

        .cta-form .form-note {
            font-size: 12px;
            color: var(--tk-text-muted);
            text-align: center;
            margin-top: 10px;
            line-height: 1.5;
        }

        .brand-intro-section {
            margin-top: var(--tk-section-gap);
            background-color: var(--tk-white);
            border-radius: var(--tk-radius-card);
            border: 1px solid var(--tk-border);
            box-shadow: var(--tk-shadow-sm);
            padding: 36px 32px;
        }

        .brand-intro-section h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--tk-primary);
            margin-bottom: 12px;
        }

        .brand-intro-section p {
            font-size: 14px;
            color: var(--tk-text-weak);
            line-height: 1.85;
        }

        @media (max-width: 1024px) {
            .cta-section {
                grid-template-columns: 1fr;
                gap: 28px;
                padding: 36px 28px;
            }

            .cta-section .cta-left p {
                max-width: 100%;
            }
        }

        @media (max-width: 768px) {
            :root {
                --tk-section-gap: 52px;
                --tk-card-padding: 20px;
            }

            .category3-hero {
                min-height: 360px;
                padding: 48px 0 56px;
            }

            .category3-hero-card {
                padding: 28px 20px;
            }

            .category3-hero-card h1 {
                font-size: 28px;
            }

            .category3-hero-card .hero-sub {
                font-size: 14px;
            }

            .activity-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .activity-card .card-img {
                height: 160px;
            }

            .category3-section--timeline {
                padding: 28px 20px;
            }

            .category3-countdown-strip .tk-container {
                flex-direction: column;
                align-items: flex-start;
            }

            .countdown-timer {
                font-size: 15px;
                gap: 5px;
                flex-wrap: wrap;
            }

            .countdown-timer .time-unit {
                min-width: 38px;
                padding: 5px 7px;
                font-size: 14px;
            }

            .cta-section {
                padding: 28px 20px;
                border-radius: 16px;
            }

            .cta-section .cta-left h2 {
                font-size: 22px;
            }

            .cta-form {
                padding: 20px 16px;
            }

            .brand-intro-section {
                padding: 24px 18px;
            }
        }

        @media (max-width: 520px) {
            .tk-container {
                padding: 0 16px;
            }

            .category3-hero {
                min-height: 320px;
                padding: 40px 0 48px;
            }

            .category3-hero-card {
                padding: 24px 16px;
                border-radius: 16px;
            }

            .category3-hero-card h1 {
                font-size: 24px;
            }

            .category3-hero-card .hero-actions {
                flex-direction: column;
                gap: 10px;
            }

            .category3-hero-card .hero-actions .tk-btn {
                width: 100%;
                min-width: 0;
            }

            .section-heading h2 {
                font-size: 22px;
            }

            .timeline-list {
                padding-left: 22px;
            }

            .timeline-item::before {
                left: -20px;
                width: 12px;
                height: 12px;
            }

            .timeline-item h3 {
                font-size: 16px;
            }

            .activity-card .card-body {
                padding: 16px 14px;
            }

            .activity-card .card-title {
                font-size: 16px;
            }

            .brand-intro-section h3 {
                font-size: 18px;
            }
        }

/* roulang page: category4 */
:root {
            --tk-primary: #10241B;
            --tk-accent: #C8F031;
            --tk-accent-hover: #B5DC24;
            --tk-charcoal: #161616;
            --tk-warm-white: #F4F6F0;
            --tk-white: #ffffff;
            --tk-text: #161616;
            --tk-text-weak: #4A4F4B;
            --tk-text-muted: #777C78;
            --tk-border: rgba(16,36,27,0.08);
            --tk-border-strong: rgba(16,36,27,0.18);
            --tk-radius-card: 18px;
            --tk-radius-btn: 10px;
            --tk-radius-badge: 999px;
            --tk-shadow-sm: 0 2px 8px rgba(16,36,27,0.06);
            --tk-shadow-md: 0 8px 24px rgba(16,36,27,0.12);
            --tk-shadow-lg: 0 16px 40px rgba(16,36,27,0.16);
            --tk-font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --tk-font-mono: 'SF Mono', 'Roboto Mono', Consolas, monospace;
            --tk-section-gap: 80px;
            --tk-section-gap-mobile: 48px;
            --tk-card-padding: 28px;
            --tk-transition: all 0.25s ease;
            --accent: #C8F031;
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: var(--tk-font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--tk-text);
            background-color: var(--tk-warm-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        .tk-container {
            max-width: 1180px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* 面包屑 */
        .breadcrumb-bar {
            background-color: var(--tk-white);
            border-bottom: 1px solid var(--tk-border);
            padding: 14px 0;
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--tk-text-muted);
        }
        .breadcrumb-nav a {
            color: var(--tk-text-weak);
            transition: color 0.2s ease;
        }
        .breadcrumb-nav a:hover {
            color: var(--tk-accent-hover);
        }
        .breadcrumb-nav .separator {
            color: var(--tk-text-muted);
            opacity: 0.5;
        }
        .breadcrumb-nav .current {
            color: var(--tk-primary);
            font-weight: 600;
        }

        /* 分类 Hero */
        .category-hero {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/coverpic/cover-4.webp');
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(16,36,27,0.88) 0%, rgba(16,36,27,0.72) 45%, rgba(22,22,22,0.6) 100%);
        }
        .category-hero .tk-container {
            position: relative;
            z-index: 2;
            width: 100%;
        }
        .category-hero-content {
            max-width: 720px;
            padding: 56px 0;
        }
        .category-hero .hero-tag-row {
            display: flex;
            gap: 10px;
            margin-bottom: 18px;
            flex-wrap: wrap;
        }
        .category-hero .hero-tag-row .tk-tag {
            font-size: 12px;
            padding: 5px 14px;
            border-radius: 999px;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .category-hero h1 {
            font-size: 42px;
            font-weight: 700;
            color: #ffffff;
            line-height: 1.3;
            margin: 0 0 16px;
            letter-spacing: -0.5px;
        }
        .category-hero h1 .accent-text {
            color: var(--tk-accent);
        }
        .category-hero .hero-desc {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(244,246,240,0.88);
            margin: 0 0 28px;
            max-width: 600px;
        }
        .category-hero .hero-meta {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
            font-size: 14px;
            color: rgba(244,246,240,0.75);
        }
        .category-hero .hero-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .category-hero .hero-meta .mono-num {
            font-family: var(--tk-font-mono);
            font-weight: 600;
            color: var(--tk-accent);
            font-size: 16px;
        }

        /* 筛选标签行 */
        .filter-section {
            padding: 36px 0;
            background-color: var(--tk-white);
            border-bottom: 1px solid var(--tk-border);
            position: sticky;
            top: 68px;
            z-index: 50;
        }
        .filter-section .tk-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .filter-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--tk-text-weak);
            flex-shrink: 0;
        }
        .filter-tabs {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .filter-tab {
            padding: 8px 20px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            border: 1.5px solid var(--tk-border-strong);
            background: transparent;
            color: var(--tk-text-weak);
            cursor: pointer;
            transition: var(--tk-transition);
            white-space: nowrap;
        }
        .filter-tab:hover {
            border-color: var(--tk-accent);
            color: var(--tk-primary);
            background: rgba(200,240,49,0.08);
        }
        .filter-tab.active {
            background: var(--tk-accent);
            border-color: var(--tk-accent);
            color: var(--tk-primary);
            font-weight: 700;
            box-shadow: 0 2px 10px rgba(200,240,49,0.3);
        }
        .filter-tab:focus-visible {
            outline: 2px solid var(--tk-accent);
            outline-offset: 2px;
        }
        .filter-result-count {
            font-size: 13px;
            color: var(--tk-text-muted);
            font-family: var(--tk-font-mono);
            flex-shrink: 0;
        }

        /* 下载卡片网格 */
        .download-section {
            padding: var(--tk-section-gap) 0;
            background-color: var(--tk-warm-white);
        }
        .download-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .download-card {
            background: var(--tk-white);
            border: 1px solid var(--tk-border);
            border-radius: var(--tk-radius-card);
            padding: var(--tk-card-padding);
            box-shadow: var(--tk-shadow-sm);
            transition: var(--tk-transition);
            display: flex;
            flex-direction: column;
            position: relative;
            overflow: hidden;
        }
        .download-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--tk-accent);
            opacity: 0;
            transition: opacity 0.25s ease;
        }
        .download-card:hover {
            box-shadow: var(--tk-shadow-md);
            transform: translateY(-3px);
            border-color: rgba(200,240,49,0.35);
        }
        .download-card:hover::before {
            opacity: 1;
        }
        .download-card .card-top {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            margin-bottom: 14px;
        }
        .download-card .file-icon {
            flex-shrink: 0;
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: var(--tk-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--tk-accent);
            font-weight: 700;
            font-size: 14px;
            font-family: var(--tk-font-mono);
            letter-spacing: 0.5px;
        }
        .download-card .card-info {
            flex: 1;
            min-width: 0;
        }
        .download-card .card-info h3 {
            margin: 0 0 6px;
            font-size: 18px;
            font-weight: 700;
            color: var(--tk-text);
            line-height: 1.4;
        }
        .download-card .card-info .file-meta {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--tk-text-muted);
            font-family: var(--tk-font-mono);
        }
        .download-card .card-desc {
            font-size: 14px;
            color: var(--tk-text-weak);
            line-height: 1.7;
            margin: 0 0 18px;
            flex: 1;
        }
        .download-card .card-actions {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }
        .download-card .card-actions .btn-download {
            padding: 10px 22px;
            border-radius: var(--tk-radius-btn);
            background: var(--tk-accent);
            color: var(--tk-primary);
            font-weight: 700;
            font-size: 14px;
            transition: var(--tk-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: none;
            cursor: pointer;
        }
        .download-card .card-actions .btn-download:hover {
            background: var(--tk-accent-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(200,240,49,0.35);
        }
        .download-card .card-actions .btn-download:focus-visible {
            outline: 2px solid var(--tk-accent);
            outline-offset: 2px;
        }
        .download-card .card-actions .file-tag {
            font-size: 11px;
            padding: 4px 10px;
            border-radius: 999px;
            background: rgba(16,36,27,0.06);
            color: var(--tk-text-weak);
            font-weight: 500;
        }

        /* 隐藏卡片（筛选） */
        .download-card.hidden {
            display: none;
        }

        /* 详情链接 */
        .card-link {
            color: var(--tk-primary);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: color 0.2s ease;
        }
        .card-link:hover {
            color: var(--tk-accent-hover);
        }
        .card-link .arrow {
            display: inline-block;
            transition: transform 0.2s ease;
        }
        .card-link:hover .arrow {
            transform: translateX(3px);
        }

        /* 数据徽章行 */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
            padding: 28px 0 0;
        }
        .stat-badge-card {
            background: var(--tk-white);
            border: 1px solid var(--tk-border);
            border-radius: 14px;
            padding: 20px 18px;
            text-align: center;
            box-shadow: var(--tk-shadow-sm);
            transition: var(--tk-transition);
        }
        .stat-badge-card:hover {
            box-shadow: var(--tk-shadow-md);
            transform: translateY(-2px);
        }
        .stat-badge-card .stat-num {
            font-family: var(--tk-font-mono);
            font-size: 34px;
            font-weight: 700;
            color: var(--tk-primary);
            line-height: 1.2;
            letter-spacing: -0.5px;
        }
        .stat-badge-card .stat-label {
            font-size: 13px;
            color: var(--tk-text-muted);
            margin-top: 6px;
        }
        .stat-badge-card.highlight {
            background: var(--tk-accent);
            border-color: var(--tk-accent);
        }
        .stat-badge-card.highlight .stat-num {
            color: var(--tk-primary);
        }
        .stat-badge-card.highlight .stat-label {
            color: rgba(22,22,22,0.7);
            font-weight: 600;
        }

        /* 底部 CTA */
        .bottom-cta {
            background: linear-gradient(135deg, var(--tk-primary) 0%, var(--tk-charcoal) 100%);
            padding: var(--tk-section-gap) 0;
            position: relative;
            overflow: hidden;
        }
        .bottom-cta::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(200,240,49,0.08) 0%, transparent 65%);
            pointer-events: none;
        }
        .bottom-cta .tk-container {
            position: relative;
            z-index: 1;
        }
        .bottom-cta-inner {
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }
        .bottom-cta h2 {
            font-size: 32px;
            font-weight: 700;
            color: #ffffff;
            margin: 0 0 14px;
            line-height: 1.35;
        }
        .bottom-cta h2 .accent-text {
            color: var(--tk-accent);
        }
        .bottom-cta p {
            font-size: 16px;
            color: rgba(244,246,240,0.8);
            margin: 0 0 28px;
            line-height: 1.8;
        }
        .bottom-cta .cta-btn-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .bottom-cta .btn-primary-large {
            padding: 14px 36px;
            border-radius: 10px;
            background: var(--tk-accent);
            color: var(--tk-primary);
            font-weight: 700;
            font-size: 16px;
            transition: var(--tk-transition);
            border: none;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .bottom-cta .btn-primary-large:hover {
            background: var(--tk-accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(200,240,49,0.35);
        }
        .bottom-cta .btn-secondary-large {
            padding: 14px 36px;
            border-radius: 10px;
            background: transparent;
            color: var(--tk-accent);
            font-weight: 600;
            font-size: 16px;
            transition: var(--tk-transition);
            border: 2px solid var(--tk-accent);
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .bottom-cta .btn-secondary-large:hover {
            background: rgba(200,240,49,0.1);
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .download-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .category-hero h1 {
                font-size: 34px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --tk-section-gap: 56px;
                --tk-card-padding: 20px;
            }
            .category-hero {
                min-height: 340px;
            }
            .category-hero-content {
                padding: 40px 0;
            }
            .category-hero h1 {
                font-size: 28px;
            }
            .category-hero .hero-desc {
                font-size: 15px;
            }
            .filter-section {
                top: 56px;
                padding: 20px 0;
            }
            .filter-section .tk-container {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .download-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .bottom-cta h2 {
                font-size: 24px;
            }
        }

        @media (max-width: 520px) {
            .tk-container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .category-hero {
                min-height: 300px;
            }
            .category-hero h1 {
                font-size: 24px;
            }
            .category-hero .hero-meta {
                gap: 16px;
                font-size: 12px;
            }
            .download-card {
                padding: 16px;
            }
            .download-card .card-top {
                flex-direction: column;
                gap: 10px;
            }
            .download-card .file-icon {
                width: 44px;
                height: 44px;
                font-size: 11px;
            }
            .stats-row {
                grid-template-columns: 1fr;
            }
            .stat-badge-card .stat-num {
                font-size: 26px;
            }
            .bottom-cta .cta-btn-group {
                flex-direction: column;
                width: 100%;
            }
            .bottom-cta .btn-primary-large,
            .bottom-cta .btn-secondary-large {
                width: 100%;
                justify-content: center;
            }
        }