/* roulang page: index */
/* ==========================================================
           内个看片 · 完整视觉系统
           说明：本段样式为 custom.css 内容，保证单文件可独立运行
           ========================================================== */
        :root {
            --bg-primary: #0B0C10;
            --bg-surface: #15171E;
            --bg-footer: #08090C;
            --accent: #C9A063;
            --accent-hover: #DDB87C;
            --accent-disabled: rgba(201, 160, 99, .35);
            --success: #3EC9A7;
            --text-primary: #E8E6DF;
            --text-secondary: #9A988F;
            --border-color: rgba(255, 255, 255, .08);
            --border-strong: rgba(255, 255, 255, .12);
            --radius-card: 14px;
            --radius-sm: 10px;
            --radius-btn: 999px;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, .25);
            --transition: all .2s ease;
            --spacer: 100px;
            --spacer-mobile: 60px;
        }

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

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.65;
            font-size: 1rem;
            font-variant-numeric: tabular-nums;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        /* 容器 */
        .container {
            max-width: 1240px;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        section {
            position: relative;
        }

        .section-padding {
            padding: var(--spacer) 0;
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: var(--spacer-mobile) 0;
            }
        }

        /* 区块标头 */
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: .8125rem;
            letter-spacing: .08em;
            text-transform: uppercase;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 14px;
        }

        .section-label::before {
            content: "";
            width: 24px;
            height: 1px;
            background: var(--accent);
            flex-shrink: 0;
        }

        .section-title {
            font-size: clamp(1.75rem, 3vw, 2.25rem);
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: 0;
            margin-bottom: 16px;
        }

        .section-desc {
            color: var(--text-secondary);
            font-size: .9375rem;
            max-width: 560px;
            line-height: 1.75;
        }

        /* ==========================================================
           顶部导航
           ========================================================== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: transparent;
            transition: var(--transition);
            border-bottom: 1px solid transparent;
        }

        .site-header.scrolled {
            background: rgba(11, 12, 16, .95);
            border-bottom-color: var(--border-color);
            backdrop-filter: saturate(120%);
        }

        .site-header .navbar {
            min-height: 72px;
            padding: 0;
        }

        .brand {
            font-size: 1.45rem;
            font-weight: 800;
            letter-spacing: .02em;
            color: var(--text-primary);
            display: inline-flex;
            align-items: center;
            white-space: nowrap;
        }

        .brand i {
            color: var(--accent);
            font-size: 1.2rem;
            margin-right: 6px;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 4px;
        }

        .nav-menu .nav-link {
            display: block;
            padding: 10px 14px;
            font-size: .9375rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            position: relative;
            transition: var(--transition);
        }

        .nav-menu .nav-link::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 4px;
            height: 2px;
            border-radius: 2px;
            background: var(--accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform .22s ease;
        }

        .nav-menu .nav-link:hover,
        .nav-menu .nav-link.active {
            color: var(--text-primary);
        }

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

        .header-cta {
            margin-left: 8px;
            flex-shrink: 0;
        }

        .btn {
            border-radius: var(--radius-btn);
            font-weight: 600;
            padding: 10px 24px;
            border: 1px solid transparent;
            transition: var(--transition);
            font-size: .9375rem;
        }

        .btn-primary {
            background: var(--accent);
            color: #0B0C10;
            border-color: var(--accent);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #0B0C10;
            transform: translateY(-1px);
        }

        .btn-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, .25);
            color: var(--text-primary);
        }

        .btn-outline:hover,
        .btn-outline:focus {
            border-color: var(--accent);
            color: var(--accent);
            background: transparent;
            transform: translateY(-1px);
        }

        .btn:focus-visible,
        .nav-menu .nav-link:focus-visible,
        .bottom-tab .tab-item:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ==========================================================
           移动端底部 Tab
           ========================================================== */
        .bottom-tab {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1060;
            background: rgba(11, 12, 16, .96);
            border-top: 1px solid var(--border-color);
            padding-bottom: env(safe-area-inset-bottom);
            height: 62px;
        }

        .bottom-tab .tab-item {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 3px;
            color: var(--text-secondary);
            font-size: .75rem;
            transition: var(--transition);
        }

        .bottom-tab .tab-item i {
            font-size: 1.25rem;
            line-height: 1;
        }

        .bottom-tab .tab-item.active {
            color: var(--accent);
        }

        /* ==========================================================
           Hero 区块
           ========================================================== */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            background: linear-gradient(180deg, rgba(11, 12, 16, .92) 0%, rgba(11, 12, 16, .78) 100%),
                url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            padding-top: 150px;
            padding-bottom: 90px;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background:
                linear-gradient(rgba(255, 255, 255, .02) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, .02) 1px, transparent 1px);
            background-size: 44px 44px;
            pointer-events: none;
        }

        .hero::after {
            content: "";
            position: absolute;
            width: 700px;
            height: 700px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(201, 160, 99, .07) 0%, transparent 70%);
            top: -200px;
            right: -150px;
            pointer-events: none;
        }

        .hero .row {
            position: relative;
            z-index: 1;
            align-items: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(201, 160, 99, .12);
            border: 1px solid rgba(201, 160, 99, .3);
            color: var(--accent);
            font-size: .8125rem;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 999px;
            margin-bottom: 24px;
            letter-spacing: .04em;
        }

        .hero-badge i {
            font-size: .8125rem;
        }

        .hero h1 {
            font-size: clamp(2.25rem, 5vw, 3.6rem);
            font-weight: 800;
            line-height: 1.18;
            letter-spacing: 0;
            margin-bottom: 20px;
            color: var(--text-primary);
        }

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

        .hero-desc {
            font-size: 1.0625rem;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 32px;
        }

        .hero-ctas {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 36px;
        }

        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 24px;
            font-size: .8125rem;
            color: var(--text-secondary);
        }

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

        .hero-trust i {
            color: var(--success);
            font-size: .875rem;
        }

        /* 倒计时环 */
        .countdown-wrap {
            position: relative;
            width: 220px;
            height: 220px;
            margin: 0 auto 28px;
        }

        .countdown-svg {
            width: 100%;
            height: 100%;
            transform: rotate(-90deg);
        }

        .countdown-track {
            fill: none;
            stroke: rgba(255, 255, 255, .07);
            stroke-width: 5;
        }

        .countdown-progress {
            fill: none;
            stroke: var(--accent);
            stroke-width: 5;
            stroke-linecap: round;
            stroke-dasharray: 490;
            stroke-dashoffset: 82;
        }

        .countdown-content {
            position: absolute;
            inset: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2px;
        }

        .countdown-days {
            font-size: 3.6rem;
            font-weight: 800;
            line-height: 1;
            color: var(--accent);
        }

        .countdown-label {
            font-size: .8125rem;
            color: var(--text-secondary);
            letter-spacing: .1em;
        }

        .countdown-timer {
            font-size: .875rem;
            color: var(--text-primary);
            letter-spacing: .06em;
            margin-top: 4px;
        }

        /* 卖点轮播 */
        .sale-points {
            max-width: 300px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .sale-point {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: var(--radius-card);
            background: rgba(21, 23, 30, .72);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            cursor: default;
        }

        .sale-point .sp-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .18);
            flex-shrink: 0;
            transition: var(--transition);
        }

        .sale-point .sp-text {
            font-size: .875rem;
            color: var(--text-secondary);
            transition: var(--transition);
        }

        .sale-point.active {
            border-color: rgba(201, 160, 99, .4);
            background: rgba(21, 23, 30, .9);
        }

        .sale-point.active .sp-dot {
            background: var(--accent);
            box-shadow: 0 0 0 3px rgba(201, 160, 99, .2);
        }

        .sale-point.active .sp-text {
            color: var(--text-primary);
        }

        /* ==========================================================
           功能章节
           ========================================================== */
        .features {
            background: var(--bg-primary);
            padding: var(--spacer) 0;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        @media (max-width:768px) {
            .features {
                padding: var(--spacer-mobile) 0;
            }
        }

        .features-left {
            padding-right: 40px;
        }

        @media (max-width:991px) {
            .features-left {
                padding-right: 0;
                margin-bottom: 40px;
            }
        }

        .features-left .section-title {
            margin-bottom: 18px;
        }

        .features-left .section-desc {
            margin-bottom: 28px;
        }

        .features-cta {
            font-size: .875rem;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .features-cta i {
            transition: transform .2s ease;
        }

        .features-cta:hover i {
            transform: translateX(4px);
        }

        .feature-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            background: var(--bg-surface);
        }

        @media (max-width:520px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }
        }

        .feature-item {
            padding: 32px 28px;
            border-bottom: 1px solid var(--border-color);
            border-right: 1px solid var(--border-color);
            transition: var(--transition);
            position: relative;
        }

        .feature-item:nth-child(2n) {
            border-right: none;
        }

        .feature-item:nth-last-child(-n+2) {
            border-bottom: none;
        }

        @media (max-width:520px) {
            .feature-item {
                border-right: none;
                border-bottom: 1px solid var(--border-color);
            }
            .feature-item:last-child {
                border-bottom: none;
            }
        }

        .feature-item:hover {
            background: rgba(255, 255, 255, .02);
        }

        .feature-item .feature-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.15rem;
            color: var(--accent);
            background: rgba(201, 160, 99, .1);
            margin-bottom: 18px;
            transition: var(--transition);
        }

        .feature-item:hover .feature-icon {
            background: rgba(201, 160, 99, .2);
            transform: scale(1.05);
        }

        .feature-item .feature-num {
            position: absolute;
            top: 28px;
            right: 24px;
            font-size: .8125rem;
            font-weight: 700;
            color: rgba(255, 255, 255, .14);
            letter-spacing: .04em;
        }

        .feature-item h3 {
            font-size: 1.125rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }

        .feature-item p {
            font-size: .875rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ==========================================================
           客户证言
           ========================================================== */
        .testimonials {
            padding: var(--spacer) 0;
            background: linear-gradient(180deg, var(--bg-primary) 0%, rgba(21, 23, 30, .5) 100%);
        }

        @media (max-width:768px) {
            .testimonials {
                padding: var(--spacer-mobile) 0;
            }
        }

        .testimonial-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 28px;
            height: 100%;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .testimonial-card:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-md);
        }

        .testimonial-card .quote-icon {
            color: var(--accent);
            font-size: 1.5rem;
            margin-bottom: 16px;
            opacity: .7;
        }

        .testimonial-card blockquote {
            font-size: .9375rem;
            color: var(--text-primary);
            line-height: 1.75;
            margin-bottom: 20px;
            flex: 1;
            border: none;
            padding: 0;
        }

        .testimonial-card .testimonial-author {
            display: flex;
            align-items: center;
            gap: 12px;
            border-top: 1px solid var(--border-color);
            padding-top: 16px;
        }

        .testimonial-card .author-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(201, 160, 99, .2);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: .875rem;
            font-weight: 700;
            flex-shrink: 0;
        }

        .testimonial-card .author-name {
            font-size: .875rem;
            font-weight: 600;
            color: var(--text-primary);
        }

        .testimonial-card .author-role {
            font-size: .8125rem;
            color: var(--text-secondary);
        }

        .testimonial-featured {
            background:
                linear-gradient(180deg, rgba(21, 23, 30, .88) 0%, rgba(11, 12, 16, .92) 100%),
                url('/assets/images/coverpic/cover-1.webp') center/cover no-repeat;
            border: 1px solid rgba(201, 160, 99, .3);
            position: relative;
            overflow: hidden;
        }

        .testimonial-featured::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, transparent 30%, rgba(201, 160, 99, .06) 100%);
            pointer-events: none;
        }

        .testimonial-featured blockquote {
            font-size: 1.0625rem;
            line-height: 1.8;
        }

        .testimonial-featured .quote-icon {
            font-size: 2rem;
        }

        /* ==========================================================
           资讯 / 动态 + 热榜
           ========================================================== */
        .news {
            padding: var(--spacer) 0;
            background: var(--bg-primary);
            border-top: 1px solid var(--border-color);
        }

        @media (max-width:768px) {
            .news {
                padding: var(--spacer-mobile) 0;
            }
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .news-item {
            display: block;
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px 24px 22px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .news-item::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--accent);
            transform: scaleY(0);
            transform-origin: bottom;
            transition: transform .22s ease;
        }

        .news-item:hover {
            border-color: rgba(201, 160, 99, .35);
            transform: translateX(4px);
        }

        .news-item:hover::before {
            transform: scaleY(1);
        }

        .news-item .news-tag {
            display: inline-block;
            font-size: .75rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 6px;
            background: rgba(201, 160, 99, .12);
            color: var(--accent);
            margin-bottom: 12px;
        }

        .news-item .news-tag.tag-success {
            background: rgba(62, 201, 167, .12);
            color: var(--success);
        }

        .news-item h3 {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.5;
        }

        .news-item p {
            font-size: .875rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* 热榜面板 */
        .hot-panel {
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 28px;
            height: 100%;
        }

        .hot-panel .hot-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
        }

        .hot-panel .hot-title {
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--text-primary);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .hot-panel .hot-title i {
            color: var(--accent);
        }

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

        .hot-list li {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 0;
            border-bottom: 1px solid var(--border-color);
            font-size: .9375rem;
            color: var(--text-primary);
            transition: var(--transition);
        }

        .hot-list li:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .hot-list li:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .hot-list .hot-num {
            width: 26px;
            height: 26px;
            flex-shrink: 0;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: .8125rem;
            font-weight: 700;
            background: rgba(255, 255, 255, .06);
            color: var(--text-secondary);
        }

        .hot-list li:nth-child(1) .hot-num {
            background: rgba(201, 160, 99, .2);
            color: var(--accent);
        }

        .hot-list li:nth-child(2) .hot-num {
            background: rgba(201, 160, 99, .14);
            color: var(--accent);
        }

        .hot-list li:nth-child(3) .hot-num {
            background: rgba(201, 160, 99, .08);
            color: var(--accent);
        }

        .hot-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
        }

        .hot-tags a {
            font-size: .8125rem;
            padding: 4px 12px;
            border-radius: 999px;
            background: rgba(255, 255, 255, .04);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            transition: var(--transition);
        }

        .hot-tags a:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(201, 160, 99, .08);
        }

        /* ==========================================================
           试用 CTA
           ========================================================== */
        .cta-section {
            padding: var(--spacer) 0;
            background:
                linear-gradient(180deg, rgba(11, 12, 16, .92) 0%, rgba(11, 12, 16, .9) 100%),
                url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            text-align: center;
            border-top: 1px solid var(--border-color);
        }

        @media (max-width:768px) {
            .cta-section {
                padding: var(--spacer-mobile) 0;
            }
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 50% 120%, rgba(201, 160, 99, .1) 0%, transparent 60%);
            pointer-events: none;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-section .section-title {
            font-size: clamp(2rem, 3.6vw, 2.8rem);
            margin-bottom: 18px;
        }

        .cta-section .section-desc {
            margin: 0 auto 36px;
            max-width: 520px;
            font-size: .9375rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #0B0C10;
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 40px;
            border-radius: 999px;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(201, 160, 99, .25);
        }

        .cta-btn:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(201, 160, 99, .3);
            color: #0B0C10;
        }

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

        .cta-note {
            margin-top: 18px;
            font-size: .8125rem;
            color: var(--text-secondary);
        }

        /* ==========================================================
           页脚
           ========================================================== */
        .site-footer {
            background: var(--bg-footer);
            border-top: 1px solid var(--border-color);
            padding: 64px 0 0;
        }

        .site-footer .footer-inner {
            padding-bottom: 48px;
        }

        .site-footer .brand {
            font-size: 1.35rem;
            margin-bottom: 14px;
        }

        .site-footer .footer-desc {
            font-size: .875rem;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 320px;
        }

        .site-footer .footer-title {
            font-size: .9375rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

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

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

        .site-footer .footer-links a {
            font-size: .875rem;
            color: var(--text-secondary);
            transition: var(--transition);
        }

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

        .site-footer .footer-contact {
            font-size: .875rem;
            color: var(--text-secondary);
            line-height: 2;
        }

        .site-footer .footer-contact i {
            color: var(--accent);
            width: 20px;
            margin-right: 4px;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding: 20px 0;
            font-size: .8125rem;
            color: var(--text-secondary);
            text-align: center;
        }

        .site-footer .footer-bottom a {
            color: var(--text-secondary);
        }

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

        /* ==========================================================
           Bootstrap 覆盖
           ========================================================== */
        .btn {
            border-radius: var(--radius-btn);
        }

        .btn-primary {
            background: var(--accent);
            border-color: var(--accent);
            color: #0B0C10;
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #0B0C10;
        }

        .accordion {
            --bs-accordion-bg: var(--bg-surface);
            --bs-accordion-border-color: var(--border-color);
            --bs-accordion-btn-color: var(--text-primary);
            --bs-accordion-btn-bg: var(--bg-surface);
            --bs-accordion-active-bg: var(--bg-surface);
            --bs-accordion-active-color: var(--accent);
            --bs-accordion-border-radius: var(--radius-card);
            --bs-accordion-inner-border-radius: calc(var(--radius-card) - 1px);
        }

        .accordion-button:not(.collapsed)::after {
            filter: none;
        }

        .accordion-button::after {
            filter: brightness(0) invert(1);
            opacity: .6;
        }

        .accordion-button:not(.collapsed)::after {
            opacity: 1;
        }

        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(201, 160, 99, .15);
        }

        /* ==========================================================
           响应式
           ========================================================== */
        @media (max-width: 991.98px) {
            .site-header .nav-menu,
            .site-header .header-cta {
                display: none;
            }

            .site-header {
                background: rgba(11, 12, 16, .7);
            }

            .site-header.scrolled {
                background: rgba(11, 12, 16, .95);
            }

            .bottom-tab {
                display: flex;
            }

            body {
                padding-bottom: 62px;
            }

            .hero {
                padding-top: 120px;
                padding-bottom: 70px;
                min-height: auto;
            }

            .hero .countdown-wrap {
                margin-top: 40px;
            }

            .hero::after {
                width: 300px;
                height: 300px;
            }
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 1.75rem;
            }

            .hero h1 {
                font-size: 2rem;
            }

            .hero-desc {
                font-size: .9375rem;
            }

            .hero-ctas .btn {
                width: 100%;
                justify-content: center;
            }

            .hero-trust {
                gap: 8px 16px;
                font-size: .75rem;
            }

            .countdown-wrap {
                width: 180px;
                height: 180px;
            }

            .countdown-days {
                font-size: 2.8rem;
            }

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

            .feature-item:nth-child(2n) {
                border-right: none;
            }

            .feature-item:nth-last-child(-n+2) {
                border-bottom: 1px solid var(--border-color);
            }

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

            .feature-item {
                padding: 24px 20px;
            }

            .testimonial-card {
                margin-bottom: 20px;
            }

            .news-item {
                padding: 20px 18px;
            }

            .hot-panel {
                margin-top: 24px;
            }

            .cta-section {
                padding: 60px 0;
            }

            .cta-btn {
                width: 100%;
                justify-content: center;
            }

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

        @media (max-width: 575.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .brand {
                font-size: 1.25rem;
            }

            .hero-badge {
                font-size: .75rem;
                padding: 4px 10px;
            }

            .hero-ctas {
                gap: 10px;
            }

            .sale-points {
                max-width: 100%;
            }

            .sale-point {
                padding: 10px 14px;
            }

            .sale-point .sp-text {
                font-size: .8125rem;
            }

            .news-list {
                gap: 14px;
            }

            .hot-panel {
                padding: 20px 18px;
            }

            .site-footer .footer-col {
                margin-bottom: 28px;
            }
        }

        /* 减少动态 */
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                transition-duration: .01ms !important;
                animation-duration: .01ms !important;
                animation-iteration-count: 1 !important;
                transform: none !important;
            }

            html {
                scroll-behavior: auto;
            }
        }

        /* 首屏入场 */
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .hero .fade-up {
            animation: fadeUp .6s ease both;
        }

        .hero .fade-up.delay-1 {
            animation-delay: .08s;
        }

        .hero .fade-up.delay-2 {
            animation-delay: .16s;
        }

        .hero .fade-up.delay-3 {
            animation-delay: .24s;
        }

/* roulang page: category1 */
/* ==========================================================
           内个看片 · 完整视觉系统 · 分类页
           ========================================================== */
        :root {
            --bg-primary: #0B0C10;
            --bg-surface: #15171E;
            --bg-footer: #08090C;
            --accent: #C9A063;
            --accent-hover: #DDB87C;
            --accent-disabled: rgba(201, 160, 99, .35);
            --success: #3EC9A7;
            --text-primary: #E8E6DF;
            --text-secondary: #9A988F;
            --border-color: rgba(255, 255, 255, .08);
            --border-strong: rgba(255, 255, 255, .12);
            --radius-card: 14px;
            --radius-sm: 10px;
            --radius-btn: 999px;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, .25);
            --transition: all .2s ease;
            --spacer: 100px;
            --spacer-mobile: 60px;
        }

        /* ========== 基础 Reset ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.65;
            font-size: 1rem;
            font-variant-numeric: tabular-nums;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            margin: 0;
            padding: 0;
            padding-bottom: 64px;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }
        .container {
            max-width: 1240px;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        section {
            position: relative;
        }
        .section-padding {
            padding: var(--spacer) 0;
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: var(--spacer-mobile) 0;
            }
        }

        /* ========== 区块标头 ========== */
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: .8125rem;
            letter-spacing: .08em;
            text-transform: uppercase;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 14px;
        }
        .section-label::before {
            content: "";
            width: 24px;
            height: 1px;
            background: var(--accent);
            flex-shrink: 0;
        }
        .section-title {
            font-size: clamp(1.75rem, 3vw, 2.25rem);
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: 0;
            margin-bottom: 16px;
        }
        .section-desc {
            color: var(--text-secondary);
            font-size: .9375rem;
            max-width: 560px;
            line-height: 1.75;
        }

        /* ========== 按钮 ========== */
        .btn {
            border-radius: var(--radius-btn);
            font-weight: 600;
            padding: 10px 24px;
            border: 1px solid transparent;
            transition: var(--transition);
            font-size: .9375rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .btn-primary {
            background: var(--accent);
            color: #0B0C10;
            border-color: var(--accent);
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #0B0C10;
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, .25);
            color: var(--text-primary);
        }
        .btn-outline:hover,
        .btn-outline:focus {
            border-color: var(--accent);
            color: var(--accent);
        }
        .btn:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .btn-sm {
            padding: 6px 18px;
            font-size: .875rem;
        }

        /* ========== 顶部导航 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: transparent;
            transition: var(--transition);
            border-bottom: 1px solid transparent;
        }
        .site-header.scrolled {
            background: rgba(11, 12, 16, .95);
            border-bottom-color: var(--border-color);
            backdrop-filter: saturate(120%);
        }
        .site-header .navbar {
            min-height: 72px;
            padding: 0;
        }
        .brand {
            font-size: 1.45rem;
            font-weight: 800;
            letter-spacing: .02em;
            color: var(--text-primary);
            display: inline-flex;
            align-items: center;
            white-space: nowrap;
        }
        .brand i {
            color: var(--accent);
            font-size: 1.2rem;
            margin-right: 6px;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 4px;
            padding: 0;
            margin: 0;
        }
        .nav-menu .nav-link {
            display: block;
            padding: 10px 14px;
            font-size: .9375rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            position: relative;
            transition: var(--transition);
        }
        .nav-menu .nav-link::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 4px;
            height: 2px;
            border-radius: 2px;
            background: var(--accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform .22s ease;
        }
        .nav-menu .nav-link:hover,
        .nav-menu .nav-link.active {
            color: var(--text-primary);
        }
        .nav-menu .nav-link:hover::after,
        .nav-menu .nav-link.active::after {
            transform: scaleX(1);
        }
        .header-cta {
            margin-left: 8px;
            flex-shrink: 0;
        }
        @media (max-width: 991px) {
            .nav-menu {
                display: none;
            }
            .header-cta {
                display: none;
            }
        }

        /* ========== 移动端底部 Tab 栏 ========== */
        .mobile-tabbar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1080;
            display: flex;
            height: 64px;
            background: rgba(11, 12, 16, .96);
            border-top: 1px solid var(--border-color);
            backdrop-filter: saturate(120%);
        }
        .mobile-tabbar .tab-item {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 3px;
            color: var(--text-secondary);
            font-size: .75rem;
            font-weight: 500;
            transition: var(--transition);
        }
        .mobile-tabbar .tab-item i {
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .mobile-tabbar .tab-item.active,
        .mobile-tabbar .tab-item:hover {
            color: var(--accent);
        }
        @media (min-width: 992px) {
            .mobile-tabbar {
                display: none;
            }
            body {
                padding-bottom: 0;
            }
        }

        /* ========== 分类页 · 页头区 ========== */
        .page-hero {
            padding: 160px 0 80px;
            background: linear-gradient(135deg, #0B0C10 0%, #14161c 55%, #181a22 100%), var(--bg-primary);
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }
        .page-hero::before {
            content: "";
            position: absolute;
            top: 0;
            right: -10%;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(201, 160, 99, .07) 0%, transparent 70%);
            pointer-events: none;
        }
        .page-hero::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--accent-disabled), transparent);
        }
        .page-hero .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: .8125rem;
            color: var(--text-secondary);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .page-hero .breadcrumb-nav a {
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .page-hero .breadcrumb-nav a:hover {
            color: var(--accent);
        }
        .page-hero .breadcrumb-nav .sep {
            color: var(--text-secondary);
            opacity: .6;
        }
        .page-hero .breadcrumb-nav .current {
            color: var(--accent);
        }
        .page-hero h1 {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.01em;
            margin-bottom: 20px;
            max-width: 680px;
        }
        .page-hero h1 span {
            color: var(--accent);
        }
        .page-hero .page-hero-desc {
            font-size: 1rem;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 640px;
            margin-bottom: 0;
        }
        @media (max-width: 768px) {
            .page-hero {
                padding: 120px 0 56px;
            }
            .page-hero h1 {
                font-size: 1.75rem;
            }
        }

        /* ========== 分类页 · 内容列表区 ========== */
        .category-list {
            background: var(--bg-primary);
        }
        .list-card {
            display: flex;
            align-items: stretch;
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            margin-bottom: 28px;
            transition: var(--transition);
            position: relative;
        }
        .list-card:hover {
            border-color: rgba(201, 160, 99, .4);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .list-card-img {
            width: 220px;
            min-height: 160px;
            flex-shrink: 0;
            overflow: hidden;
            position: relative;
        }
        .list-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .list-card:hover .list-card-img img {
            transform: scale(1.04);
        }
        .list-card-body {
            flex: 1;
            padding: 28px 32px 28px 28px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .list-card-badges {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 12px;
        }
        .card-badge {
            display: inline-block;
            background: rgba(201, 160, 99, .12);
            color: var(--accent);
            font-size: .75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 6px;
            letter-spacing: .02em;
        }
        .list-card-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 10px;
            color: var(--text-primary);
            transition: var(--transition);
        }
        .list-card:hover .list-card-body h3 {
            color: var(--accent-hover);
        }
        .list-card-body p {
            font-size: .9375rem;
            line-height: 1.7;
            color: var(--text-secondary);
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .list-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: .8125rem;
            color: var(--text-secondary);
        }
        .list-card-meta i {
            color: var(--accent);
            font-size: .8125rem;
            margin-right: 4px;
        }
        .list-card-number {
            position: absolute;
            top: 16px;
            right: 20px;
            font-size: 2rem;
            font-weight: 800;
            color: rgba(255, 255, 255, .06);
            line-height: 1;
            pointer-events: none;
            letter-spacing: -.02em;
        }
        @media (max-width: 768px) {
            .list-card {
                flex-direction: column;
                margin-bottom: 20px;
            }
            .list-card-img {
                width: 100%;
                min-height: 180px;
                height: 180px;
            }
            .list-card-body {
                padding: 20px;
            }
            .list-card-body h3 {
                font-size: 1.125rem;
            }
            .list-card-number {
                font-size: 1.5rem;
            }
        }

        /* ========== 分页区 ========== */
        .pagination-wrap {
            padding: 16px 0 80px;
        }
        .pagination-wrap .pagination {
            justify-content: center;
            gap: 8px;
            margin: 0;
            flex-wrap: wrap;
        }
        .pagination-wrap .page-link {
            background: transparent;
            border: 1px solid var(--border-strong);
            color: var(--text-primary);
            border-radius: var(--radius-btn);
            padding: 8px 18px;
            font-size: .875rem;
            font-weight: 500;
            transition: var(--transition);
            min-width: 42px;
            text-align: center;
        }
        .pagination-wrap .page-link:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(201, 160, 99, .06);
        }
        .pagination-wrap .page-item.active .page-link {
            background: var(--accent);
            border-color: var(--accent);
            color: #0B0C10;
            font-weight: 700;
        }
        @media (max-width: 768px) {
            .pagination-wrap .page-link {
                padding: 8px 14px;
                font-size: .8125rem;
                min-width: 38px;
            }
        }

        /* ========== FAQ 区 ========== */
        .faq-section {
            background: var(--bg-primary);
            border-top: 1px solid var(--border-color);
        }
        .accordion {
            --bs-accordion-border-width: 0;
            --bs-accordion-bg: transparent;
            --bs-accordion-border-radius: var(--radius-card);
        }
        .accordion-item {
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }
        .accordion-item:last-child {
            margin-bottom: 0;
        }
        .accordion-item.has-border-highlight {
            border-color: rgba(201, 160, 99, .4);
        }
        .accordion-button {
            background: var(--bg-surface);
            color: var(--text-primary);
            font-size: 1rem;
            font-weight: 600;
            padding: 18px 24px;
            box-shadow: none;
            border: none;
        }
        .accordion-button:not(.collapsed) {
            background: var(--bg-surface);
            color: var(--text-primary);
            box-shadow: none;
        }
        .accordion-button::after {
            filter: invert(1);
            opacity: .6;
            transition: transform .2s ease;
        }
        .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
        }
        .accordion-body {
            padding: 0 24px 20px;
            color: var(--text-secondary);
            font-size: .9375rem;
            line-height: 1.7;
            border-top: 1px solid transparent;
        }

        /* ========== CTA 区 ========== */
        .cta-section {
            padding: var(--spacer) 0;
            background: var(--bg-footer);
            position: relative;
            overflow: hidden;
            text-align: center;
            border-top: 1px solid var(--border-color);
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 600px;
            height: 300px;
            background: radial-gradient(circle, rgba(201, 160, 99, .05) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: clamp(1.75rem, 3vw, 2.5rem);
            font-weight: 800;
            margin-bottom: 16px;
            position: relative;
        }
        .cta-section p {
            color: var(--text-secondary);
            font-size: 1rem;
            max-width: 480px;
            margin: 0 auto 32px;
            line-height: 1.7;
            position: relative;
        }
        .cta-section .btn {
            position: relative;
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: var(--spacer-mobile) 0;
            }
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--bg-footer);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 0;
            scroll-margin-top: 72px;
        }
        .footer-inner {
            padding-bottom: 40px;
            border-bottom: 1px solid var(--border-color);
        }
        .footer-col {
            margin-bottom: 32px;
        }
        .footer-col .brand {
            margin-bottom: 14px;
        }
        .footer-desc {
            color: var(--text-secondary);
            font-size: .875rem;
            line-height: 1.7;
            max-width: 300px;
            margin-bottom: 0;
        }
        .footer-title {
            font-size: .9375rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 18px;
            letter-spacing: .02em;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: var(--text-secondary);
            font-size: .875rem;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-contact div {
            color: var(--text-secondary);
            font-size: .875rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-contact i {
            color: var(--accent);
            width: 16px;
            text-align: center;
            flex-shrink: 0;
        }
        .footer-bottom {
            padding: 24px 0;
            text-align: center;
            font-size: .8125rem;
            color: var(--text-secondary);
        }
        .footer-bottom a {
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 991px) {
            .site-header .navbar {
                min-height: 64px;
            }
            .site-header .header-cta {
                display: none;
            }
            .brand {
                font-size: 1.25rem;
            }
        }
        @media (max-width: 768px) {
            .list-card {
                flex-direction: column;
            }
            .list-card-img {
                width: 100%;
                min-height: 180px;
            }
            .footer-inner {
                padding-bottom: 24px;
            }
            .footer-bottom {
                padding-bottom: 40px;
            }
        }
        @media (min-width: 992px) {
            .mobile-tabbar {
                display: none;
            }
            body {
                padding-bottom: 0;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}