/* roulang page: index */
:root {
            --c-primary: #2C4A3B;
            --c-primary-deep: #14241D;
            --c-accent: #C0965C;
            --c-accent-bright: #DDB786;
            --c-bg: #F7F3EC;
            --c-surface: #FFFFFF;
            --c-ink: #1B241F;
            --c-muted: #6A716B;
            --c-line: #E7E0D3;
            --r-card: 1.25rem;
            --r-btn: 999px;
            --r-badge: 0.875rem;
            --shadow-card: 0 10px 30px rgba(27, 36, 31, 0.07);
            --shadow-hover: 0 18px 45px rgba(27, 36, 31, 0.13);
            --grad-brand: linear-gradient(135deg, #2C4A3B 0%, #3A634D 55%, #C0965C 130%);
            --grad-accent: linear-gradient(135deg, #C0965C, #955E2E);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--c-bg);
            color: var(--c-ink);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            padding-bottom: 84px;
        }

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

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

        a:focus-visible,
        button:focus-visible,
        summary:focus-visible {
            outline: 3px solid var(--c-accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

        .container-custom {
            max-width: 72rem;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 640px) {
            .container-custom {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        @media (min-width: 1024px) {
            .container-custom {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        .section-padding {
            padding-top: 4rem;
            padding-bottom: 4rem;
        }

        @media (min-width: 768px) {
            .section-padding {
                padding-top: 6rem;
                padding-bottom: 6rem;
            }
        }

        /* 刊头导航 */
        .masthead {
            background: linear-gradient(180deg, #FFFFFF 0%, #FDFBF7 100%);
            border-bottom: 1px solid var(--c-line);
            position: relative;
            z-index: 50;
        }

        .masthead::after {
            content: "";
            position: absolute;
            bottom: -1px;
            left: 0;
            width: 100px;
            height: 3px;
            background: linear-gradient(90deg, var(--c-accent), var(--c-accent-bright), transparent);
        }

        .masthead-brand {
            font-size: 1.875rem;
            font-weight: 900;
            letter-spacing: -0.02em;
            color: var(--c-ink);
            line-height: 1.2;
        }

        .masthead-sub {
            font-size: 0.875rem;
            color: var(--c-muted);
            letter-spacing: 0.06em;
            margin-top: 2px;
        }

        .nav-link {
            font-size: 0.9375rem;
            color: var(--c-ink);
            padding: 6px 2px;
            position: relative;
            font-weight: 500;
        }

        .nav-link::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--c-accent);
            transition: width 0.25s ease;
        }

        .nav-link:hover {
            color: var(--c-accent);
        }

        .nav-link:hover::after {
            width: 100%;
        }

        /* 移动端菜单 */
        .mobile-menu {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: #FFF;
            border-radius: 0 0 1rem 1rem;
            box-shadow: 0 20px 40px rgba(27, 36, 31, 0.12);
            padding: 0.5rem 1.25rem 1.25rem;
            z-index: 100;
            border-bottom: 2px solid var(--c-accent);
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-menu a {
            display: block;
            padding: 0.75rem 0.5rem;
            font-size: 1rem;
            font-weight: 500;
            border-bottom: 1px solid #F0EBE2;
        }

        .mobile-menu a:last-child {
            border-bottom: none;
        }

        .mobile-menu a:hover {
            color: var(--c-accent);
            padding-left: 0.75rem;
        }

        @media (max-width: 1023px) {
            .masthead-brand {
                font-size: 1.4rem;
            }

            .masthead-sub {
                font-size: 0.75rem;
            }

            .nav-desktop {
                display: none;
            }
        }

        @media (min-width: 1024px) {
            .mobile-toggle {
                display: none;
            }
        }

        /* Hero */
        .hero-section {
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            position: relative;
            min-height: clamp(560px, 92vh, 780px);
            display: flex;
            align-items: center;
        }

        .hero-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(20, 36, 29, 0.88), rgba(20, 36, 29, 0.55) 55%, rgba(20, 36, 29, 0.15));
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 640px;
        }

        .hero-title {
            font-size: clamp(2.5rem, 6vw, 4rem);
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -0.02em;
            color: #FFF;
        }

        .hero-title .highlight {
            background: linear-gradient(135deg, var(--c-accent-bright), var(--c-accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 1.125rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            margin-top: 1rem;
        }

        .hero-cta {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-top: 2rem;
        }

        .btn-primary {
            background: var(--grad-accent);
            color: #FFF;
            padding: 0.875rem 2rem;
            border-radius: var(--r-btn);
            font-weight: 700;
            font-size: 0.9375rem;
            box-shadow: 0 10px 25px rgba(192, 150, 92, 0.35);
            transition: all 0.25s ease;
            border: none;
            cursor: pointer;
            display: inline-block;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 14px 30px rgba(192, 150, 92, 0.45);
            filter: brightness(1.05);
        }

        .btn-primary:active {
            transform: translateY(0px);
            box-shadow: 0 6px 15px rgba(192, 150, 92, 0.3);
        }

        .btn-outline {
            background: transparent;
            color: #FFF;
            padding: 0.875rem 2rem;
            border-radius: var(--r-btn);
            border: 1px solid rgba(255, 255, 255, 0.45);
            font-weight: 600;
            font-size: 0.9375rem;
            transition: all 0.25s ease;
            display: inline-block;
            cursor: pointer;
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.7);
        }

        .btn-outline:active {
            transform: scale(0.98);
        }

        /* 封面卡 */
        .hero-cover {
            position: absolute;
            right: 2rem;
            top: 50%;
            transform: translateY(-50%) rotate(2deg);
            width: 320px;
            border-radius: var(--r-card);
            overflow: hidden;
            box-shadow: 0 25px 60px rgba(0, 0, 0, 0.3);
            border: 2px solid rgba(255, 255, 255, 0.2);
            animation: float-slow 6s ease-in-out infinite;
        }

        .hero-cover img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        @keyframes float-slow {
            0%, 100% {
                transform: translateY(-50%) rotate(2deg);
            }
            50% {
                transform: translateY(calc(-50% - 10px)) rotate(1deg);
            }
        }

        @media (max-width: 1023px) {
            .hero-cover {
                display: none;
            }
        }

        /* 数据徽章 */
        .data-badge {
            background: rgba(20, 36, 29, 0.6);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 1rem;
            padding: 0.75rem 1.25rem;
            backdrop-filter: blur(8px);
        }

        .data-badge-number {
            font-size: 1.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--c-accent-bright), var(--c-accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .data-badge-label {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.8);
            margin-top: 2px;
            letter-spacing: 0.04em;
        }

        /* 卖点三连 */
        .feature-card {
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: var(--r-card);
            box-shadow: var(--shadow-card);
            padding: 2rem;
            transition: all 0.25s ease;
        }

        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: #DSCDB4;
        }

        .feature-card.featured {
            background: var(--c-primary-deep);
            border-color: var(--c-primary-deep);
        }

        .feature-card.featured h3 {
            color: #FFF;
        }

        .feature-card.featured p {
            color: rgba(255, 255, 255, 0.7);
        }

        .feature-card.featured .feature-icon {
            background: rgba(255, 255, 255, 0.1);
        }

        .feature-icon {
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #F5EFE4;
            border-radius: 50%;
            margin-bottom: 1.25rem;
            transition: all 0.25s ease;
        }

        .feature-card:hover .feature-icon {
            background: #FDF3E3;
        }

        .feature-link {
            color: var(--c-accent);
            font-weight: 600;
            font-size: 0.9375rem;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-top: 0.75rem;
        }

        .feature-link:hover {
            gap: 8px;
            color: #955E2E;
        }

        .feature-card.featured .feature-link {
            color: var(--c-accent-bright);
        }

        /* 场景演示 */
        .scene-card {
            border-radius: var(--r-card);
            overflow: hidden;
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            box-shadow: var(--shadow-card);
            transition: all 0.25s ease;
        }

        .scene-card:hover {
            box-shadow: var(--shadow-hover);
        }

        .scene-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 16/10;
        }

        .scene-pill {
            display: inline-block;
            background: #FDF3E3;
            color: #8A5A2B;
            font-size: 0.875rem;
            font-weight: 600;
            padding: 0.375rem 1rem;
            border-radius: var(--r-btn);
            letter-spacing: 0.04em;
        }

        .scene-check {
            display: flex;
            align-items: flex-start;
            gap: 0.5rem;
            font-size: 0.9375rem;
            color: var(--c-ink);
            margin-top: 0.5rem;
        }

        .scene-check svg {
            flex-shrink: 0;
            margin-top: 3px;
        }

        .play-decor {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 64px;
            height: 64px;
            background: rgba(255, 255, 255, 0.7);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            backdrop-filter: blur(4px);
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
            pointer-events: none;
            transition: all 0.3s ease;
        }

        .scene-card:hover .play-decor {
            transform: translate(-50%, -50%) scale(1.08);
            background: rgba(255, 255, 255, 0.85);
        }

        /* 社会认同深色区块 */
        .social-proof {
            background: var(--c-primary-deep);
            position: relative;
            overflow: hidden;
        }

        .social-proof::before {
            content: "";
            position: absolute;
            top: -100px;
            right: -80px;
            width: 320px;
            height: 320px;
            background: rgba(192, 150, 92, 0.08);
            border-radius: 50%;
            filter: blur(60px);
        }

        .social-proof::after {
            content: "";
            position: absolute;
            bottom: -80px;
            left: -60px;
            width: 260px;
            height: 260px;
            background: rgba(58, 99, 77, 0.25);
            border-radius: 50%;
            filter: blur(50px);
        }

        .proof-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--r-card);
            padding: 1.5rem;
            position: relative;
            z-index: 1;
        }

        .proof-number {
            font-size: 2.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--c-accent-bright), var(--c-accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }

        .proof-label {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 0.25rem;
        }

        .review-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 1rem;
            padding: 1.25rem;
            margin-bottom: 0.75rem;
        }

        .review-text {
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.9375rem;
            line-height: 1.6;
        }

        .review-meta {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.8125rem;
            margin-top: 0.5rem;
        }

        .stars {
            color: var(--c-accent-bright);
            font-size: 0.875rem;
            letter-spacing: 2px;
            margin-bottom: 0.375rem;
        }

        /* FAQ */
        .faq-item {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 1rem;
            margin-bottom: 0.625rem;
            overflow: hidden;
            transition: all 0.25s ease;
        }

        .faq-item summary {
            padding: 1rem 1.25rem;
            color: #FFF;
            font-weight: 500;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            list-style: none;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: "+";
            font-size: 1.5rem;
            font-weight: 300;
            color: var(--c-accent-bright);
            transition: transform 0.25s ease;
        }

        .faq-item[open] summary::after {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 1.25rem 1.25rem;
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9375rem;
            line-height: 1.7;
        }

        /* 底部固定转化条 */
        .fixed-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 60;
            background: rgba(247, 243, 236, 0.92);
            backdrop-filter: blur(8px);
            border-top: 1px solid var(--c-line);
            padding: 0.75rem 1rem;
            transform: translateY(100%);
            transition: transform 0.4s ease;
        }

        .fixed-cta.visible {
            transform: translateY(0);
        }

        .fixed-cta-text {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--c-ink);
        }

        .fixed-cta-text .badge-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            background: #3DBE6D;
            border-radius: 50%;
            margin-right: 0.375rem;
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.6;
                transform: scale(0.8);
            }
        }

        /* 页脚 */
        .site-footer {
            background: var(--c-ink);
            padding-top: 3rem;
            position: relative;
        }

        .site-footer::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--c-accent), var(--c-accent-bright), transparent);
        }

        .footer-brand {
            font-size: 1.5rem;
            font-weight: 900;
            color: #FFF;
            line-height: 1.3;
        }

        .footer-desc {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.875rem;
            line-height: 1.6;
            margin-top: 0.75rem;
        }

        .footer-copyright {
            color: rgba(255, 255, 255, 0.35);
            font-size: 0.75rem;
            margin-top: 1rem;
        }

        .footer-link {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.875rem;
            display: block;
            padding: 0.25rem 0;
            transition: all 0.25s ease;
        }

        .footer-link:hover {
            color: var(--c-accent-bright);
            padding-left: 4px;
        }

        .footer-tag {
            display: inline-block;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.8125rem;
            padding: 0.25rem 0.875rem;
            border-radius: var(--r-btn);
            margin: 0.25rem;
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-contact {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.875rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-top: 0.5rem;
        }

        /* 滚动渐显 */
        .fade-up {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* 区块标题 */
        .section-eyebrow {
            font-size: 0.875rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--c-accent);
            text-transform: uppercase;
            margin-bottom: 0.5rem;
        }

        .section-title {
            font-size: clamp(1.75rem, 4vw, 3rem);
            font-weight: 800;
            letter-spacing: -0.015em;
            color: var(--c-ink);
            line-height: 1.2;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--c-muted);
            margin-top: 0.75rem;
            max-width: 720px;
            line-height: 1.7;
        }

        /* 文案工具 */
        .c-accent {
            color: var(--c-accent);
        }

        .text-white-70 {
            color: rgba(255, 255, 255, 0.7);
        }

        .text-gold {
            background: linear-gradient(135deg, var(--c-accent-bright), var(--c-accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        ul.icon-list {
            margin-top: 0.5rem;
        }

        ul.icon-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.5rem;
            font-size: 0.9375rem;
            margin-top: 0.35rem;
        }

        /* 资讯列表 */
        .info-list {
            background: var(--c-surface);
            border-radius: var(--r-card);
            border: 1px solid var(--c-line);
            box-shadow: var(--shadow-card);
            padding: 1.5rem;
        }

        .info-list-item {
            display: flex;
            gap: 1rem;
            padding: 0.75rem 0;
            border-bottom: 1px solid #F0EBE2;
            transition: all 0.25s ease;
        }

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

        .info-list-item:hover {
            padding-left: 0.5rem;
        }

        .info-list-cat {
            flex-shrink: 0;
            font-size: 0.75rem;
            background: #FDF3E3;
            color: #8A5A2B;
            padding: 0.125rem 0.625rem;
            border-radius: var(--r-badge);
            align-self: flex-start;
            font-weight: 600;
            margin-top: 3px;
        }

        .info-list-title {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--c-ink);
            line-height: 1.5;
        }

        .info-list-title:hover {
            color: var(--c-accent);
        }

        .info-list-date {
            font-size: 0.75rem;
            color: var(--c-muted);
            margin-top: 2px;
        }

        /* 推荐栏 */
        .recommend-box {
            background: var(--c-primary-deep);
            border-radius: var(--r-card);
            padding: 1.5rem;
            position: relative;
            overflow: hidden;
        }

        .recommend-box::after {
            content: "";
            position: absolute;
            bottom: -60px;
            right: -40px;
            width: 150px;
            height: 150px;
            background: rgba(192, 150, 92, 0.15);
            border-radius: 50%;
            filter: blur(20px);
        }

        .recommend-title {
            color: #FFF;
            font-size: 1.125rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            position: relative;
            z-index: 1;
        }

        .recommend-item {
            padding: 0.625rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
        }

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

        .recommend-item a {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.875rem;
            line-height: 1.5;
            display: block;
        }

        .recommend-item a:hover {
            color: var(--c-accent-bright);
        }

        /* 响应式 */
        @media (max-width: 767px) {
            .hero-cta {
                flex-direction: column;
                align-items: stretch;
            }

            .hero-cta .btn-primary,
            .hero-cta .btn-outline {
                text-align: center;
            }

            .fixed-cta-text span {
                display: none;
            }
        }

        @media (max-width: 640px) {
            .masthead-brand {
                font-size: 1.25rem;
            }

            .masthead-sub {
                font-size: 0.6875rem;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }