/* roulang page: index */
:root {
            --primary: #B4472A;
            --primary-dark: #8E3520;
            --primary-darker: #6E2717;
            --primary-light: #D47A5A;
            --primary-soft: #F5E3DC;
            --primary-glow: rgba(180, 71, 42, 0.35);
            --secondary: #2C3E50;
            --secondary-dark: #1E2A32;
            --accent: #D97706;
            --accent-soft: #FEF3C7;
            --bg: #FBF7F4;
            --bg-warm: #F5EDE7;
            --card-bg: #FFFFFF;
            --text: #2B2B2B;
            --text-strong: #1A1A1A;
            --text-muted: #6B6B6B;
            --text-faint: #9A9A9A;
            --border: #E8E0DA;
            --border-light: #F0EAE5;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 50rem;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.05);
            --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
            --shadow-hover: 0 12px 40px rgba(180,71,42,0.18);
            --shadow-nav: 0 4px 28px rgba(0,0,0,0.10);
            --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
            --container-max: 1200px;
            --nav-height: 64px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

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

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

        :focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ========== 悬浮胶囊导航 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            padding: 14px 0 8px;
            pointer-events: none;
        }

        .nav-capsule {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 10px 18px;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid rgba(255,255,255,0.6);
            border-radius: var(--radius-full);
            box-shadow: var(--shadow-nav);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            pointer-events: auto;
            transition: var(--transition);
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-strong);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .brand-logo:hover {
            color: var(--primary);
        }

        .brand-logo .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
            box-shadow: 0 2px 10px var(--primary-glow);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-full);
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-links li a:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .nav-links li a.active {
            color: var(--primary);
            background: var(--primary-soft);
            font-weight: 600;
        }
        .nav-links li a .nav-icon {
            font-size: 0.85rem;
            opacity: 0.7;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            border-radius: var(--radius-full);
            background: var(--primary);
            color: #fff;
            font-size: 0.9rem;
            font-weight: 600;
            border: none;
            transition: var(--transition);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .nav-cta:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px var(--primary-glow);
        }
        .nav-cta:active {
            transform: translateY(0);
            box-shadow: none;
        }

        /* ========== Hero 创作者主页头图风格 ========== */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 120px 0 80px;
            background: linear-gradient(160deg, rgba(30, 42, 50, 0.82) 0%, rgba(20, 28, 34, 0.9) 55%, rgba(40, 25, 20, 0.92) 100%),
                        url('/assets/images/backpic/back-1.jpg') center center / cover no-repeat;
            background-attachment: fixed;
            overflow: hidden;
        }

        .hero-overlay-pattern {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 30% 40%, rgba(180,71,42,0.22) 0%, transparent 55%),
                        radial-gradient(ellipse at 75% 65%, rgba(217,119,6,0.15) 0%, transparent 45%);
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 820px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .hero-avatar {
            width: 96px;
            height: 96px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 24px;
            font-size: 2.6rem;
            color: #fff;
            box-shadow: 0 8px 32px rgba(180, 71, 42, 0.45), 0 0 0 4px rgba(255,255,255,0.15);
            transition: var(--transition);
        }
        .hero-avatar:hover {
            transform: scale(1.05);
            box-shadow: 0 12px 40px rgba(180, 71, 42, 0.55), 0 0 0 6px rgba(255,255,255,0.2);
        }

        .hero-badge-line {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            border-radius: var(--radius-full);
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255,255,255,0.2);
            color: #F5E3DC;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 20px;
            letter-spacing: 0.03em;
        }
        .hero-badge-line .badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #F5A623;
            animation: pulse-dot 2s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.4); }
        }

        .hero-title {
            font-size: clamp(1.9rem, 4.2vw, 3.1rem);
            font-weight: 800;
            color: #FFFFFF;
            margin: 0 0 20px;
            line-height: 1.25;
            letter-spacing: -0.01em;
            text-shadow: 0 2px 18px rgba(0,0,0,0.35);
        }

        .hero-desc {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 700px;
            margin: 0 auto 28px;
            line-height: 1.85;
            letter-spacing: 0.01em;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-bottom: 32px;
        }

        .hero-stat-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-full);
            background: rgba(255, 255, 255, 0.10);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255,255,255,0.18);
            color: #fff;
            font-size: 0.9rem;
            font-weight: 500;
            transition: var(--transition);
        }
        .hero-stat-badge:hover {
            background: rgba(255, 255, 255, 0.18);
            transform: translateY(-2px);
        }
        .hero-stat-badge .stat-num {
            font-weight: 700;
            color: #F5C97B;
            font-size: 1.05rem;
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-bottom: 36px;
        }
        .hero-tags .tag {
            padding: 6px 16px;
            border-radius: var(--radius-full);
            background: rgba(255,255,255,0.08);
            border: 1px solid rgba(255,255,255,0.16);
            color: rgba(255,255,255,0.8);
            font-size: 0.82rem;
            transition: var(--transition);
            cursor: default;
        }
        .hero-tags .tag:hover {
            background: rgba(255,255,255,0.16);
            border-color: rgba(255,255,255,0.3);
            color: #fff;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 14px;
        }

        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: var(--radius-full);
            background: var(--primary);
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            border: none;
            letter-spacing: 0.02em;
            transition: var(--transition);
        }
        .btn-hero-primary:hover {
            background: var(--primary-light);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(180,71,42,0.5);
        }
        .btn-hero-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-hero-outline {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: var(--radius-full);
            background: transparent;
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            border: 2px solid rgba(255,255,255,0.5);
            letter-spacing: 0.02em;
            transition: var(--transition);
        }
        .btn-hero-outline:hover {
            border-color: #fff;
            background: rgba(255,255,255,0.12);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ========== 板块通用 ========== */
        .section {
            padding: 72px 0;
        }
        .section-alt {
            background: var(--bg-warm);
            padding: 72px 0;
        }
        .section-dark {
            background: var(--secondary-dark);
            padding: 72px 0;
            color: #fff;
        }

        .section-header {
            margin-bottom: 42px;
        }
        .section-header.text-center {
            text-align: center;
        }

        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 12px;
        }
        .section-eyebrow::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .section-title {
            font-size: clamp(1.5rem, 3vw, 2.1rem);
            font-weight: 700;
            color: var(--text-strong);
            margin: 0 0 14px;
            line-height: 1.3;
            letter-spacing: -0.01em;
        }
        .section-dark .section-title {
            color: #fff;
        }
        .section-alt .section-title {
            color: var(--text-strong);
        }

        .section-desc {
            font-size: 0.98rem;
            color: var(--text-muted);
            max-width: 680px;
            margin: 0 auto;
            line-height: 1.8;
        }
        .section-header.text-center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }
        .section-dark .section-desc {
            color: rgba(255,255,255,0.75);
        }

        /* ========== 卖点三连 ========== */
        .selling-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 8px;
        }

        .selling-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .selling-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
            opacity: 0;
            transition: var(--transition);
        }
        .selling-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(180,71,42,0.2);
        }
        .selling-card:hover::after {
            opacity: 1;
        }

        .selling-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--primary);
            margin-bottom: 18px;
            transition: var(--transition);
        }
        .selling-card:hover .selling-icon {
            background: var(--primary);
            color: #fff;
            transform: scale(1.05);
        }

        .selling-card h3 {
            font-size: 1.12rem;
            font-weight: 700;
            margin: 0 0 10px;
            color: var(--text-strong);
        }
        .selling-card p {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.75;
        }

        /* ========== 入口矩阵 ========== */
        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 16px;
        }

        .matrix-item {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            padding: 24px 18px;
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            cursor: pointer;
            display: block;
            color: var(--text);
        }
        .matrix-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: rgba(180,71,42,0.25);
            color: var(--primary);
        }
        .matrix-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--primary);
            margin: 0 auto 12px;
            transition: var(--transition);
        }
        .matrix-item:hover .matrix-icon {
            background: var(--primary);
            color: #fff;
        }
        .matrix-item h4 {
            font-size: 0.95rem;
            font-weight: 600;
            margin: 0 0 4px;
            color: var(--text-strong);
        }
        .matrix-item span {
            font-size: 0.78rem;
            color: var(--text-faint);
            display: block;
        }

        /* ========== 场景演示 ========== */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
            align-items: center;
        }
        .scene-gallery {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        .scene-img-card {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            position: relative;
            transition: var(--transition);
        }
        .scene-img-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .scene-img-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: var(--transition);
        }
        .scene-img-card:hover img {
            transform: scale(1.04);
        }
        .scene-img-card .scene-label {
            position: absolute;
            bottom: 10px;
            left: 10px;
            right: 10px;
            padding: 8px 14px;
            border-radius: 8px;
            background: rgba(0,0,0,0.65);
            backdrop-filter: blur(6px);
            color: #fff;
            font-size: 0.82rem;
            font-weight: 500;
            text-align: center;
        }
        .scene-info h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text-strong);
        }
        .scene-info p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 14px;
        }
        .scene-points {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .scene-points li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            font-size: 0.92rem;
            color: var(--text-muted);
        }
        .scene-points li i {
            color: var(--primary);
            font-size: 1rem;
            margin-top: 3px;
        }

        /* ========== 里程碑 ========== */
        .milestone-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .milestone-item {
            text-align: center;
            padding: 30px 20px;
            border-radius: var(--radius-md);
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .milestone-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: rgba(180,71,42,0.2);
        }
        .milestone-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 8px;
        }
        .milestone-item h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-strong);
            margin: 0 0 6px;
        }
        .milestone-item span {
            font-size: 0.82rem;
            color: var(--text-faint);
        }

        /* ========== 资讯区：左列表 + 右推荐栏 ========== */
        .news-layout {
            display: grid;
            grid-template-columns: 1.4fr 0.9fr;
            gap: 32px;
            align-items: start;
        }
        .news-list {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }
        .news-list-header {
            padding: 18px 24px;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .news-list-header h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin: 0;
            color: var(--text-strong);
        }
        .news-list-header .update-tag {
            padding: 4px 12px;
            border-radius: var(--radius-full);
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
        }
        .news-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 24px;
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
            text-decoration: none;
            color: var(--text);
        }
        .news-item:last-child {
            border-bottom: none;
        }
        .news-item:hover {
            background: var(--bg-warm);
            padding-left: 28px;
        }
        .news-item .news-cat {
            flex-shrink: 0;
            padding: 3px 10px;
            border-radius: 6px;
            font-size: 0.75rem;
            font-weight: 600;
            color: #fff;
            background: var(--primary);
            white-space: nowrap;
        }
        .news-item .news-cat.cat-guide { background: var(--accent); }
        .news-item .news-cat.cat-store { background: var(--secondary); }
        .news-item .news-cat.cat-tips { background: #57965C; }
        .news-item .news-text {
            flex: 1;
            min-width: 0;
        }
        .news-item .news-text h4 {
            font-size: 0.93rem;
            font-weight: 600;
            margin: 0 0 4px;
            color: var(--text-strong);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            transition: var(--transition);
        }
        .news-item:hover .news-text h4 {
            color: var(--primary);
        }
        .news-item .news-text .news-meta {
            font-size: 0.78rem;
            color: var(--text-faint);
            display: flex;
            gap: 14px;
        }
        .news-item .news-text .news-meta i {
            margin-right: 4px;
        }

        .news-sidebar {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .news-reco-card {
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            text-decoration: none;
            color: var(--text);
            display: block;
        }
        .news-reco-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .news-reco-card img {
            width: 100%;
            height: 150px;
            object-fit: cover;
        }
        .news-reco-card .reco-body {
            padding: 16px 18px;
        }
        .news-reco-card .reco-body .reco-tag {
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 6px;
            display: block;
        }
        .news-reco-card .reco-body h4 {
            font-size: 0.95rem;
            font-weight: 600;
            margin: 0 0 6px;
            color: var(--text-strong);
            line-height: 1.4;
        }
        .news-reco-card .reco-body p {
            font-size: 0.8rem;
            color: var(--text-faint);
            margin: 0;
        }

        /* ========== 社会认同 ========== */
        .social-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .social-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
        }
        .social-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .social-card .quote-mark {
            font-size: 2rem;
            color: var(--primary-soft);
            line-height: 1;
            margin-bottom: 12px;
        }
        .social-card p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 18px;
        }
        .social-card .social-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .social-card .user-avatar-sm {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: 700;
            font-size: 0.95rem;
            flex-shrink: 0;
        }
        .social-card .user-info h5 {
            font-size: 0.9rem;
            font-weight: 600;
            margin: 0 0 2px;
            color: var(--text-strong);
        }
        .social-card .user-info span {
            font-size: 0.78rem;
            color: var(--text-faint);
        }
        .social-card .user-stars {
            margin-left: auto;
            color: #F5A623;
            font-size: 0.85rem;
        }

        /* ========== 平台保障 ========== */
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .guarantee-item {
            text-align: center;
            padding: 28px 20px;
            border-radius: var(--radius-md);
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.12);
            transition: var(--transition);
        }
        .guarantee-item:hover {
            background: rgba(255,255,255,0.1);
            border-color: rgba(255,255,255,0.25);
            transform: translateY(-3px);
        }
        .guarantee-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(180,71,42,0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: #F5C97B;
            margin: 0 auto 14px;
            transition: var(--transition);
        }
        .guarantee-item:hover .guarantee-icon {
            background: var(--primary);
            color: #fff;
            transform: scale(1.08);
        }
        .guarantee-item h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin: 0 0 8px;
        }
        .guarantee-item p {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.7);
            margin: 0;
            line-height: 1.6;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(180,71,42,0.2);
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            width: 100%;
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: none;
            border: none;
            cursor: pointer;
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text-strong);
            text-align: left;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-toggle {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            transition: var(--transition);
        }
        .faq-item.open .faq-toggle {
            background: var(--primary);
            color: #fff;
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 220px;
        }
        .faq-answer p {
            padding: 0 24px 20px;
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin: 0;
        }

        /* ========== App 下载引导 ========== */
        .app-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: center;
        }
        .app-info h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 14px;
        }
        .app-info p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .app-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .btn-app {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 24px;
            border-radius: var(--radius-md);
            background: var(--text-strong);
            color: #fff;
            font-size: 0.9rem;
            font-weight: 600;
            border: none;
            transition: var(--transition);
        }
        .btn-app:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(180,71,42,0.3);
        }
        .btn-app.icon-btn {
            background: transparent;
            border: 2px solid var(--border);
            color: var(--text-muted);
        }
        .btn-app.icon-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: transparent;
            box-shadow: none;
        }
        .app-preview {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        .app-preview img {
            width: 100%;
            height: 340px;
            object-fit: cover;
        }
        .app-preview .preview-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, rgba(0,0,0,0.2) 0%, rgba(0,0,0,0.55) 100%);
            display: flex;
            align-items: flex-end;
            padding: 24px;
        }
        .app-preview .preview-overlay .preview-text {
            color: #fff;
            font-weight: 600;
            font-size: 1.05rem;
            text-shadow: 0 2px 8px rgba(0,0,0,0.4);
        }

        /* ========== 底部固定转化条 ========== */
        .fixed-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1040;
            padding: 12px 20px;
            background: rgba(30, 42, 50, 0.96);
            backdrop-filter: blur(12px);
            border-top: 1px solid rgba(255,255,255,0.1);
            box-shadow: 0 -4px 20px rgba(0,0,0,0.2);
            transform: translateY(100%);
            transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .fixed-cta-bar.show {
            transform: translateY(0);
        }
        .fixed-cta-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .fixed-cta-text {
            color: #fff;
            font-size: 0.9rem;
            font-weight: 500;
        }
        .fixed-cta-text strong {
            color: #F5C97B;
        }
        .fixed-cta-btn {
            padding: 10px 22px;
            border-radius: var(--radius-full);
            background: var(--primary);
            color: #fff;
            font-size: 0.88rem;
            font-weight: 600;
            border: none;
            white-space: nowrap;
            transition: var(--transition);
        }
        .fixed-cta-btn:hover {
            background: var(--primary-light);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(180,71,42,0.4);
        }
        .fixed-cta-close {
            background: none;
            border: none;
            color: rgba(255,255,255,0.5);
            cursor: pointer;
            font-size: 1rem;
            padding: 4px;
            transition: var(--transition);
        }
        .fixed-cta-close:hover {
            color: #fff;
        }

        body.cta-visible {
            padding-bottom: 72px;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #161D23;
            color: rgba(255,255,255,0.75);
            padding: 56px 0 28px;
            border-top: 1px solid rgba(255,255,255,0.08);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand .brand-logo-footer {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand .brand-logo-footer .logo-mark-footer {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
        }
        .footer-brand p {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.6);
            line-height: 1.75;
            max-width: 360px;
            margin: 0;
        }
        .footer-col h5 {
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            margin: 0 0 16px;
            letter-spacing: 0.03em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.65);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: #F5C97B;
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255,255,255,0.45);
        }
        .footer-bottom a {
            color: rgba(255,255,255,0.55);
        }
        .footer-bottom a:hover {
            color: #F5C97B;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .matrix-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .milestone-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .social-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .selling-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .news-sidebar {
                flex-direction: row;
                flex-wrap: wrap;
            }
            .news-reco-card {
                flex: 1;
                min-width: 260px;
            }
            .app-grid {
                grid-template-columns: 1fr;
            }
            .app-preview img {
                height: 260px;
            }
        }

        @media (max-width: 768px) {
            .section,
            .section-alt,
            .section-dark {
                padding: 52px 0;
            }
            .site-header {
                padding: 8px 0 4px;
            }
            .nav-capsule {
                padding: 8px 14px;
                border-radius: 28px;
                gap: 10px;
            }
            .brand-logo {
                font-size: 0.9rem;
            }
            .brand-logo .logo-mark {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .nav-links li a {
                padding: 6px 12px;
                font-size: 0.82rem;
            }
            .nav-cta {
                padding: 6px 14px;
                font-size: 0.8rem;
                gap: 4px;
            }
            .hero-section {
                min-height: auto;
                padding: 100px 0 60px;
                background-attachment: scroll;
            }
            .hero-title {
                font-size: 1.7rem;
            }
            .hero-desc {
                font-size: 0.92rem;
                line-height: 1.7;
            }
            .hero-avatar {
                width: 72px;
                height: 72px;
                font-size: 2rem;
                margin-bottom: 18px;
            }
            .hero-stat-badge {
                padding: 7px 14px;
                font-size: 0.78rem;
                gap: 5px;
            }
            .hero-stat-badge .stat-num {
                font-size: 0.9rem;
            }
            .hero-tags .tag {
                padding: 5px 12px;
                font-size: 0.72rem;
            }
            .btn-hero-primary,
            .btn-hero-outline {
                padding: 11px 22px;
                font-size: 0.88rem;
                gap: 6px;
            }
            .selling-grid {
                grid-template-columns: 1fr;
            }
            .scene-grid {
                grid-template-columns: 1fr;
            }
            .scene-gallery {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .scene-img-card img {
                height: 150px;
            }
            .matrix-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .matrix-item {
                padding: 18px 12px;
            }
            .matrix-icon {
                width: 40px;
                height: 40px;
                font-size: 1.1rem;
            }
            .matrix-item h4 {
                font-size: 0.85rem;
            }
            .social-grid {
                grid-template-columns: 1fr;
            }
            .milestone-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .milestone-item {
                padding: 22px 14px;
            }
            .milestone-num {
                font-size: 1.8rem;
            }
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .guarantee-item {
                padding: 20px 14px;
            }
            .news-item {
                padding: 14px 16px;
                gap: 10px;
            }
            .news-item .news-cat {
                font-size: 0.7rem;
                padding: 2px 8px;
            }
            .news-item .news-text h4 {
                font-size: 0.85rem;
            }
            .news-reco-card {
                min-width: 100%;
            }
            .news-sidebar {
                flex-direction: column;
            }
            .faq-question {
                padding: 14px 18px;
                font-size: 0.9rem;
            }
            .faq-answer p {
                padding: 0 18px 16px;
                font-size: 0.85rem;
            }
            .fixed-cta-bar .container {
                flex-wrap: wrap;
                gap: 8px;
                justify-content: center;
                text-align: center;
            }
            .fixed-cta-text {
                font-size: 0.78rem;
                width: 100%;
            }
            .fixed-cta-btn {
                padding: 8px 16px;
                font-size: 0.8rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .nav-capsule {
                padding: 6px 10px;
                gap: 6px;
                border-radius: 22px;
            }
            .brand-logo {
                font-size: 0.8rem;
                gap: 6px;
            }
            .brand-logo .logo-mark {
                width: 28px;
                height: 28px;
                font-size: 0.75rem;
            }
            .nav-links li a {
                padding: 5px 8px;
                font-size: 0.75rem;
                gap: 3px;
            }
            .nav-links li a .nav-icon {
                font-size: 0.7rem;
            }
            .nav-cta {
                padding: 5px 10px;
                font-size: 0.72rem;
                gap: 3px;
            }
            .hero-section {
                padding: 80px 0 48px;
            }
            .hero-title {
                font-size: 1.45rem;
            }
            .hero-stats {
                gap: 8px;
            }
            .hero-stat-badge {
                padding: 6px 10px;
                font-size: 0.72rem;
                gap: 3px;
            }
            .hero-cta-group {
                gap: 8px;
            }
            .btn-hero-primary,
            .btn-hero-outline {
                padding: 10px 16px;
                font-size: 0.82rem;
                width: 100%;
                justify-content: center;
            }
            .scene-gallery {
                grid-template-columns: 1fr;
            }
            .matrix-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }
            .matrix-item {
                padding: 14px 8px;
            }
            .matrix-item h4 {
                font-size: 0.78rem;
            }
            .matrix-item span {
                font-size: 0.7rem;
            }
            .milestone-num {
                font-size: 1.5rem;
            }
            .milestone-item h4 {
                font-size: 0.82rem;
            }
            .milestone-item span {
                font-size: 0.72rem;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .section-desc {
                font-size: 0.88rem;
            }
            .news-list-header {
                padding: 14px 16px;
            }
            .news-item {
                padding: 12px 14px;
                flex-wrap: wrap;
                gap: 6px;
            }
            .news-item .news-text h4 {
                font-size: 0.8rem;
            }
            .news-item .news-text .news-meta {
                font-size: 0.7rem;
                gap: 8px;
            }
            .faq-question {
                padding: 12px 14px;
                font-size: 0.85rem;
                gap: 10px;
            }
            .footer-bottom {
                font-size: 0.72rem;
            }
        }

/* 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}