* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background: #fefaff;
            color: #1f1a3c;
            line-height: 1.5;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 28px;
        }
        /* 紫色渐变基调 (与首页/下载页一致) */
        :root {
            --primary: #a855f7;
            --primary-dark: #7e22ce;
            --secondary: #f43f5e;
            --gradient-hero: linear-gradient(135deg, #c084fc 0%, #db2777 100%);
            --card-shadow: 0 20px 35px -12px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0,0,0,0.02);
            --border-light: 1px solid rgba(168, 85, 247, 0.15);
        }
        .header {
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid rgba(168, 85, 247, 0.2);
        }
        .nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 1rem 0;
        }
        .logo a {
            font-size: 1.6rem;
            font-weight: 800;
            background: linear-gradient(125deg, #a855f7, #ec4899);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            text-decoration: none;
            letter-spacing: -0.02em;
        }
        .nav-links {
            display: flex;
            gap: 2rem;
            align-items: center;
            flex-wrap: wrap;
        }
        .nav-links a {
            text-decoration: none;
            font-weight: 500;
            color: #2d2a4a;
            transition: 0.2s;
        }
        .nav-links a:hover {
            color: #a855f7;
        }
        .btn-subscribe {
            background: linear-gradient(105deg, #a855f7, #d946ef);
            color: white !important;
            padding: 0.5rem 1.4rem;
            border-radius: 40px;
            box-shadow: 0 6px 12px -6px rgba(168, 85, 247, 0.4);
            transition: all 0.2s;
        }
        .btn-subscribe:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 20px -10px #a855f7;
        }
        /* 页面头部 */
        .page-hero {
            text-align: center;
            padding: 3rem 0 2rem;
        }
        .page-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            background: linear-gradient(to right, #4c1d95, #db2777, #c026d3);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            margin-bottom: 1rem;
        }
        .update-tag {
            display: inline-block;
            background: #f3e8ff;
            color: #7e22ce;
            border-radius: 40px;
            font-size: 0.75rem;
            padding: 0.2rem 0.9rem;
            margin-left: 0.8rem;
            vertical-align: middle;
        }
        .lead {
            font-size: 1.2rem;
            color: #4c4b6e;
            max-width: 780px;
            margin: 0 auto;
        }
        /* 全新排版：侧边式目录 & 创意网格 */
        .guide-layout {
            display: grid;
            grid-template-columns: 260px 1fr;
            gap: 2rem;
            margin: 3rem 0;
        }
        .sidebar-nav {
            background: #ffffffcc;
            backdrop-filter: blur(8px);
            border-radius: 1.8rem;
            padding: 1.5rem;
            border: 1px solid #ede9fe;
            position: sticky;
            top: 100px;
            height: fit-content;
        }
        .sidebar-nav h4 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: #2d1b69;
        }
        .sidebar-nav ul {
            list-style: none;
        }
        .sidebar-nav li {
            margin-bottom: 0.8rem;
        }
        .sidebar-nav a {
            text-decoration: none;
            color: #5b5580;
            font-weight: 500;
            transition: 0.2s;
            display: block;
            padding: 0.3rem 0;
        }
        .sidebar-nav a:hover {
            color: #a855f7;
            transform: translateX(4px);
        }
        .main-content {
            overflow: hidden;
        }
        .section {
            margin-bottom: 4rem;
        }
        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            border-left: 5px solid #a855f7;
            padding-left: 1rem;
            margin-bottom: 2rem;
            color: #2d1b69;
        }
        .grid-2col {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
        }
        .info-card {
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(2px);
            border-radius: 1.8rem;
            padding: 1.8rem;
            transition: all 0.3s;
            border: var(--border-light);
            box-shadow: var(--card-shadow);
        }
        .info-card:hover {
            transform: translateY(-6px);
            border-color: #c084fc;
        }
        .badge-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            margin-top: 1rem;
        }
        .badge {
            background: #f3e8ff;
            color: #7e22ce;
            padding: 0.25rem 1rem;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 500;
        }
        .timeline-step {
            display: flex;
            gap: 1.2rem;
            margin-bottom: 2rem;
            align-items: flex-start;
        }
        .timeline-num {
            width: 48px;
            height: 48px;
            background: linear-gradient(145deg, #a855f7, #d946ef);
            border-radius: 60px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.5rem;
            color: white;
            flex-shrink: 0;
        }
        .timeline-content {
            background: white;
            border-radius: 1.2rem;
            padding: 1.2rem 1.5rem;
            border: 1px solid #ede9fe;
            width: 100%;
        }
        .platform-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin: 1rem 0;
        }
        .platform-tag {
            background: #f3e8ff;
            padding: 0.5rem 1.2rem;
            border-radius: 40px;
            font-weight: 600;
            color: #6b21a5;
        }
        .compare-wrapper {
            overflow-x: auto;
            border-radius: 1.5rem;
            background: white;
            border: 1px solid #ede9fe;
        }
        .compare-table {
            width: 100%;
            border-collapse: collapse;
        }
        .compare-table th, .compare-table td {
            padding: 1rem;
            text-align: left;
            border-bottom: 1px solid #ede9fe;
        }
        .faq-item {
            background: white;
            border-radius: 1rem;
            padding: 1rem 1.5rem;
            margin-bottom: 1rem;
            box-shadow: 0 2px 6px rgba(0,0,0,0.02);
            border-left: 4px solid #a855f7;
        }
        .footer {
            border-top: 1px solid #ede9fe;
            background: #fcfaff;
            padding: 2rem 0;
            margin-top: 3rem;
            text-align: center;
        }
        @media (max-width: 880px) {
            .guide-layout {
                grid-template-columns: 1fr;
            }
            .sidebar-nav {
                position: static;
                margin-bottom: 1rem;
            }
        }
        @media (max-width: 640px) {
            .page-hero h1 {
                font-size: 2rem;
            }
        }
        .alert-tip {
            background: #fff5e9;
            border-radius: 1rem;
            padding: 1rem 1.2rem;
            margin: 1rem 0;
            border-left: 4px solid #f97316;
        }