/* roulang page: index */
:root {
            --primary: #1a3c34;
            --primary-dark: #0f2a24;
            --primary-light: #2a554b;
            --accent: #c89a5b;
            --accent-light: #e0b87d;
            --bg: #f7f4ed;
            --bg-card: #ffffff;
            --text: #2b231d;
            --text-light: #6b5f54;
            --text-muted: #9a8d80;
            --border: #e5ddd0;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(26, 60, 52, 0.06);
            --shadow-md: 0 8px 24px rgba(26, 60, 52, 0.10);
            --shadow-lg: 0 18px 48px rgba(26, 60, 52, 0.14);
            --shadow-accent: 0 6px 20px rgba(200, 154, 91, 0.30);
            --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 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: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

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

        /* ===== 左侧导航 ===== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: 260px;
            background: var(--primary);
            color: #fff;
            z-index: 1000;
            display: flex;
            flex-direction: column;
            transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 4px 0 24px rgba(15, 42, 36, 0.20);
        }

        .sidebar-brand {
            padding: 28px 20px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        }

        .sidebar-brand .brand-line {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.4;
            letter-spacing: 0.3px;
            color: var(--accent-light);
        }

        .sidebar-brand .brand-sub {
            font-size: 11px;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 4px;
            letter-spacing: 1.2px;
            text-transform: uppercase;
        }

        .sidebar-nav {
            flex: 1;
            padding: 24px 16px;
            overflow-y: auto;
        }

        .sidebar-nav .nav-label {
            font-size: 11px;
            letter-spacing: 1.6px;
            text-transform: uppercase;
            color: rgba(255, 255, 255, 0.40);
            padding: 0 12px 12px;
            font-weight: 600;
        }

        .sidebar-nav a.nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 13px 16px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 4px;
            transition: var(--transition);
            position: relative;
        }

        .sidebar-nav a.nav-item:hover {
            background: rgba(255, 255, 255, 0.10);
            color: #fff;
        }

        .sidebar-nav a.nav-item.active {
            background: rgba(200, 154, 91, 0.22);
            color: var(--accent-light);
            font-weight: 600;
        }

        .sidebar-nav a.nav-item.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 22px;
            background: var(--accent);
            border-radius: 0 3px 3px 0;
        }

        .sidebar-nav a.nav-item i {
            width: 20px;
            text-align: center;
            font-size: 15px;
        }

        .sidebar-footer {
            padding: 18px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            font-size: 12px;
            color: rgba(255, 255, 255, 0.45);
        }

        .sidebar-footer .footer-info-item {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 6px;
        }

        /* ===== 主内容区 ===== */
        .main-content {
            margin-left: 260px;
            min-height: 100vh;
        }

        /* ===== 移动端顶部导航 ===== */
        .mobile-header {
            display: none;
            background: var(--primary);
            color: #fff;
            padding: 14px 18px;
            position: sticky;
            top: 0;
            z-index: 900;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 2px 16px rgba(15, 42, 36, 0.25);
        }

        .mobile-header .mobile-brand {
            font-size: 14px;
            font-weight: 700;
            color: var(--accent-light);
            line-height: 1.3;
        }

        .mobile-header .hamburger {
            color: #fff;
            font-size: 22px;
            padding: 4px 8px;
            border-radius: 6px;
            transition: var(--transition);
        }

        .mobile-header .hamburger:hover {
            background: rgba(255, 255, 255, 0.12);
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(15, 42, 36, 0.96);
            z-index: 950;
            padding: 70px 24px 24px;
            flex-direction: column;
            gap: 8px;
            transition: opacity 0.3s ease;
        }

        .mobile-drawer.open {
            display: flex;
        }

        .mobile-drawer a.nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 15px 18px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.80);
            background: rgba(255, 255, 255, 0.06);
            transition: var(--transition);
        }

        .mobile-drawer a.nav-item:hover,
        .mobile-drawer a.nav-item.active {
            background: rgba(200, 154, 91, 0.22);
            color: var(--accent-light);
        }

        .mobile-drawer .drawer-close {
            position: absolute;
            top: 18px;
            right: 18px;
            color: #fff;
            font-size: 26px;
            padding: 4px 10px;
            border-radius: 8px;
            transition: var(--transition);
        }

        .mobile-drawer .drawer-close:hover {
            background: rgba(255, 255, 255, 0.12);
        }

        /* ===== 通用组件 ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.4px;
            background: rgba(200, 154, 91, 0.16);
            color: var(--accent);
            transition: var(--transition);
        }

        .badge-accent {
            background: var(--accent);
            color: #fff;
        }

        .badge-outline {
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text-light);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.2px;
            transition: var(--transition);
            text-align: center;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(26, 60, 52, 0.30);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 8px 24px rgba(26, 60, 52, 0.40);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(26, 60, 52, 0.25);
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: var(--shadow-accent);
        }

        .btn-accent:hover {
            background: #b6874b;
            box-shadow: 0 8px 28px rgba(200, 154, 91, 0.42);
            transform: translateY(-2px);
        }

        .btn-accent:active {
            transform: translateY(0);
            box-shadow: 0 2px 10px rgba(200, 154, 91, 0.28);
        }

        .btn-outline {
            background: transparent;
            border: 1.5px solid var(--primary);
            color: var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-white-outline {
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            color: #fff;
        }

        .btn-white-outline:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: #fff;
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 12px;
        }

        .btn-lg {
            padding: 15px 34px;
            font-size: 15px;
        }

        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border);
        }

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

        .section-title {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            letter-spacing: 0.2px;
        }

        .section-subtitle {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.8;
            max-width: 640px;
        }

        /* ===== Hero 图标矩阵 ===== */
        .icon-matrix {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
            gap: 12px;
            padding: 0;
        }

        .icon-matrix-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
            padding: 20px 12px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.85);
            border: 1px solid var(--border);
            transition: var(--transition);
            text-align: center;
        }

        .icon-matrix-item:hover {
            background: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--accent-light);
        }

        .icon-matrix-item i {
            font-size: 26px;
            color: var(--accent);
        }

        .icon-matrix-item span {
            font-size: 12px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.3;
        }

        /* ===== 状态条 ===== */
        .status-bar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px 24px;
            padding: 14px 20px;
            border-radius: var(--radius-sm);
            background: rgba(26, 60, 52, 0.06);
            border: 1px solid rgba(26, 60, 52, 0.10);
        }

        .status-bar .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #4CAF50;
            animation: pulse-dot 2s infinite;
        }

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

        /* ===== 分隔线 ===== */
        .divider {
            height: 1px;
            background: linear-gradient(to right, transparent, var(--border), transparent);
            margin: 0;
        }

        /* ===== FAQ ===== */
        .faq-item {
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 18px 4px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            text-align: left;
            transition: var(--transition);
        }

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

        .faq-question .faq-icon {
            font-size: 18px;
            color: var(--accent);
            transition: transform 0.3s ease;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .faq-item.open .faq-answer {
            max-height: 900px;
        }

        .faq-answer p {
            padding: 0 4px 18px;
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.8;
        }

        /* ===== 表格样式 ===== */
        .styled-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
        }

        .styled-table thead th {
            background: var(--primary);
            color: #fff;
            padding: 13px 16px;
            font-weight: 600;
            font-size: 13px;
            letter-spacing: 0.4px;
            text-align: left;
            white-space: nowrap;
        }

        .styled-table thead th:first-child {
            border-radius: var(--radius-sm) 0 0 0;
        }

        .styled-table thead th:last-child {
            border-radius: 0 var(--radius-sm) 0 0;
        }

        .styled-table tbody td {
            padding: 14px 16px;
            border-bottom: 1px solid var(--border);
            color: var(--text-light);
            vertical-align: middle;
        }

        .styled-table tbody tr {
            transition: var(--transition);
        }

        .styled-table tbody tr:hover {
            background: rgba(26, 60, 52, 0.04);
        }

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

        /* ===== 套餐卡 ===== */
        .pricing-card {
            position: relative;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 2px solid var(--border);
            padding: 28px 24px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .pricing-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-5px);
        }

        .pricing-card.featured {
            border-color: var(--accent);
            background: linear-gradient(180deg, #fffdf8 0%, #fff 100%);
            box-shadow: var(--shadow-accent);
        }

        .pricing-card .pricing-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent);
            color: #fff;
            font-size: 11px;
            font-weight: 700;
            padding: 4px 16px;
            border-radius: 50px;
            letter-spacing: 0.5px;
        }

        .pricing-price {
            font-size: 34px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }

        .pricing-price .currency {
            font-size: 18px;
            font-weight: 600;
        }

        .pricing-price .unit {
            font-size: 13px;
            font-weight: 400;
            color: var(--text-muted);
        }

        /* ===== 资讯列表 ===== */
        .news-list-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 16px 18px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            border-left: 3px solid transparent;
        }

        .news-list-item:hover {
            background: rgba(26, 60, 52, 0.05);
            border-left-color: var(--accent);
        }

        .news-list-item .news-index {
            font-size: 22px;
            font-weight: 800;
            color: var(--accent);
            min-width: 36px;
            text-align: center;
            line-height: 1.4;
        }

        /* ===== 表单样式 ===== */
        .form-input {
            width: 100%;
            padding: 13px 18px;
            border-radius: var(--radius-sm);
            border: 1.5px solid var(--border);
            background: #fff;
            font-size: 14px;
            color: var(--text);
            transition: var(--transition);
        }

        .form-input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(200, 154, 91, 0.16);
        }

        .form-input::placeholder {
            color: var(--text-muted);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .sidebar {
                transform: translateX(-100%);
                width: 280px;
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-header {
                display: flex;
            }
        }

        @media (max-width: 768px) {
            .icon-matrix {
                grid-template-columns: repeat(3, 1fr);
                gap: 8px;
            }
            .icon-matrix-item {
                padding: 14px 8px;
                gap: 6px;
            }
            .icon-matrix-item i {
                font-size: 20px;
            }
            .icon-matrix-item span {
                font-size: 10px;
            }
            .btn-lg {
                padding: 12px 22px;
                font-size: 13px;
            }
            .section-title {
                font-size: 22px;
            }
            .pricing-card {
                padding: 20px 16px;
            }
            .pricing-price {
                font-size: 26px;
            }
            .styled-table {
                font-size: 11px;
            }
            .styled-table thead th,
            .styled-table tbody td {
                padding: 9px 10px;
            }
            .news-list-item {
                flex-direction: column;
                gap: 8px;
                padding: 12px 14px;
            }
        }

        @media (max-width: 520px) {
            .icon-matrix {
                grid-template-columns: repeat(2, 1fr);
            }
            .status-bar {
                gap: 8px 12px;
                padding: 10px 14px;
                font-size: 12px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 12px;
            }
            .section-title {
                font-size: 19px;
            }
            .section-subtitle {
                font-size: 12px;
            }
        }

        /* ===== 动画 ===== */
        @keyframes fadeUp {
            from { opacity: 0; transform: translateY(18px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .animate-fade-up {
            animation: fadeUp 0.55s ease forwards;
        }

        .delay-1 { animation-delay: 0.05s; }
        .delay-2 { animation-delay: 0.12s; }
        .delay-3 { animation-delay: 0.2s; }
        .delay-4 { animation-delay: 0.28s; }

        /* ===== 战役区背景 ===== */
        .battle-zone {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
        }

        .battle-zone .battle-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.22;
            z-index: 0;
        }

        .battle-zone .battle-content {
            position: relative;
            z-index: 1;
        }

        /* ===== 数字标记 ===== */
        .rank-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
        }

        .rank-number.top1 { background: #f5a623; }
        .rank-number.top2 { background: #9e9e9e; }
        .rank-number.top3 { background: #a5743d; }