/* roulang page: index */
:root {
            --tea: #1F3A2D;
            --tea-dark: #101F19;
            --gold: #C5A06A;
            --gold-light: #D9B98A;
            --bg-warm: #FAF3E8;
            --text-main: #2A2A2A;
            --text-weak: #7A8A7E;
            --border: rgba(31, 58, 45, 0.06);
            --radius-lg: 24px;
            --radius-md: 12px;
            --shadow-card: 0 12px 30px -12px rgba(17, 31, 25, 0.18);
            --shadow-float: 0 20px 40px -15px rgba(17, 31, 25, 0.28);
            --font-size: 15px;
            --line-height: 1.75;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            font-size: var(--font-size);
            line-height: var(--line-height);
            background: #FAF3E8;
            color: #2A2A2A;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input {
            font-family: inherit;
        }

        /* 按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 44px;
            padding: 0 22px;
            border-radius: 12px;
            background: linear-gradient(160deg, #1F3A2D 0%, #101F19 100%);
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 0.01em;
            border: 1px solid transparent;
            box-shadow: 0 12px 30px -12px rgba(17, 31, 25, 0.28);
            transition: all .2s ease;
        }
        .btn-primary:hover {
            background: linear-gradient(160deg, #C5A06A 0%, #a58550 100%);
            color: #101F19;
            box-shadow: 0 20px 40px -15px rgba(17, 31, 25, 0.3);
        }
        .btn-primary:active {
            transform: scale(0.97);
        }
        .btn-primary:focus-visible {
            outline: 3px solid rgba(197, 160, 106, 0.5);
            outline-offset: 2px;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 44px;
            padding: 0 22px;
            border-radius: 12px;
            background: transparent;
            color: #1F3A2D;
            font-weight: 700;
            font-size: 15px;
            border: 1px solid #C5A06A;
            transition: all .2s ease;
        }
        .btn-secondary:hover {
            background: rgba(197, 160, 106, 0.15);
            border-color: #a58550;
        }
        .btn-secondary:active {
            transform: scale(0.97);
        }
        .btn-secondary:focus-visible {
            outline: 3px solid rgba(197, 160, 106, 0.5);
            outline-offset: 2px;
        }
        .btn-gold {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 48px;
            padding: 0 30px;
            border-radius: 12px;
            background: linear-gradient(160deg, #D9B98A 0%, #C5A06A 100%);
            color: #101F19;
            font-weight: 700;
            font-size: 15px;
            border: none;
            box-shadow: 0 12px 30px -10px rgba(197, 160, 106, 0.4);
            transition: all .2s ease;
        }
        .btn-gold:hover {
            background: linear-gradient(160deg, #C5A06A 0%, #a58550 100%);
            transform: translateY(-2px);
        }
        .btn-gold:active {
            transform: scale(0.97);
        }
        .btn-gold:focus-visible {
            outline: 3px solid rgba(197, 160, 106, 0.6);
            outline-offset: 2px;
        }

        /* 数据徽章 */
        .badge-data {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 999px;
            background: linear-gradient(160deg, #1F3A2D, #101F19);
            color: #FAF3E8;
            font-size: 13px;
            font-weight: 500;
            box-shadow: 0 8px 20px -8px rgba(17, 31, 25, 0.35);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .badge-data .num {
            color: #D9B98A;
            font-weight: 800;
            font-size: 17px;
            line-height: 1;
        }
        .badge-tag {
            display: inline-flex;
            align-items: center;
            padding: 3px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(197, 160, 106, 0.12);
            color: #a58550;
        }
        .badge-tag-dark {
            display: inline-flex;
            align-items: center;
            padding: 3px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(31, 58, 45, 0.08);
            color: #1F3A2D;
        }

        /* 频道卡 */
        .channel-card {
            transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
        }
        .channel-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 20px 40px -15px rgba(17, 31, 25, 0.22);
        }
        .subscribe-pill {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 7px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            background: rgba(31, 58, 45, 0.05);
            color: #1F3A2D;
            border: 1px solid rgba(31, 58, 45, 0.08);
            cursor: default;
            transition: all .2s ease;
            white-space: nowrap;
        }
        .subscribe-pill:hover {
            background: rgba(31, 58, 45, 0.1);
            border-color: rgba(31, 58, 45, 0.2);
        }

        /* 场景卡 */
        .scene-card {
            transition: transform .2s ease, box-shadow .2s ease;
        }
        .scene-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 40px -15px rgba(17, 31, 25, 0.28);
        }

        /* 案例卡 */
        .case-card {
            transition: transform .2s ease, box-shadow .2s ease;
        }
        .case-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 40px -15px rgba(17, 31, 25, 0.28);
        }
        .case-card:hover .case-tag {
            background: #C5A06A;
            color: #101F19;
        }
        .case-tag {
            transition: all .2s ease;
        }

        /* 价格卡 */
        .price-card {
            transition: transform .2s ease, box-shadow .2s ease;
        }
        .price-card:hover {
            transform: translateY(-4px);
        }
        .price-list li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.6;
        }
        .price-list li::before {
            content: "";
            flex-shrink: 0;
            width: 16px;
            height: 16px;
            margin-top: 3px;
            background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23C5A06A'%3E%3Cpath d='M5.5 8.2L7.2 10l3.8-4.2-.9-.9-2.9 3.2-1.3-1.3-.9.9z'/%3E%3C/svg%3E") center/contain no-repeat;
        }
        .price-list-dark li::before {
            background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23D9B98A'%3E%3Cpath d='M5.5 8.2L7.2 10l3.8-4.2-.9-.9-2.9 3.2-1.3-1.3-.9.9z'/%3E%3C/svg%3E") center/contain no-repeat;
        }

        /* FAQ */
        .faq-item {
            transition: box-shadow .2s ease;
        }
        .faq-item.open {
            box-shadow: 0 12px 30px -12px rgba(17, 31, 25, 0.12);
        }
        .faq-header:focus-visible {
            outline: 3px solid rgba(197, 160, 106, 0.5);
            outline-offset: -2px;
        }

        /* 搜索框 */
        .search-input {
            transition: border-color .2s, box-shadow .2s;
        }
        .search-input:focus {
            border-color: #C5A06A;
            box-shadow: 0 0 0 3px rgba(197, 160, 106, 0.15);
        }

        /* 图片卡 hover 轻微缩放 */
        .img-zoom img {
            transition: transform .5s ease;
        }
        .img-zoom:hover img {
            transform: scale(1.03);
        }

        /* 导航 */
        .header-blur {
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        /* 移动菜单 */
        .mobile-menu {
            animation: slideDown .2s ease;
        }
        @keyframes slideDown {
            from {
                opacity: 0;
                transform: translateY(-8px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* 区块间距 */
        .section-pad {
            padding-top: 72px;
            padding-bottom: 72px;
        }
        @media (min-width: 1024px) {
            .section-pad {
                padding-top: 96px;
                padding-bottom: 96px;
            }
        }
        @media (max-width: 767px) {
            .section-pad {
                padding-top: 48px;
                padding-bottom: 48px;
            }
        }
        .container-x {
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        @media (min-width: 640px) {
            .container-x {
                padding-left: 24px;
                padding-right: 24px;
            }
        }
        @media (min-width: 1024px) {
            .container-x {
                padding-left: 32px;
                padding-right: 32px;
            }
        }

        /* 焦点主题卡 */
        .topic-card {
            transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
        }
        .topic-card:hover {
            transform: translateY(-3px);
            border-color: rgba(197, 160, 106, .6);
            box-shadow: 0 12px 30px -12px rgba(17, 31, 25, .15);
        }

        /* 浮动转化条 */
        .float-bar {
            animation: slideUp .3s ease;
        }
        @keyframes slideUp {
            from {
                transform: translateY(100%);
            }
            to {
                transform: translateY(0);
            }
        }