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

        body {
            font-family: system-ui, -apple-system, 'Segoe UI', 'Noto Sans', 'Helvetica Neue', sans-serif;
            background: #fefaf5;
            color: #2c2418;
            line-height: 1.45;
            scroll-behavior: smooth;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 玻璃质感头部 */
        .header {
            background: rgba(255, 248, 240, 0.92);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid rgba(235, 205, 167, 0.5);
        }

        .nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 0.9rem 0;
        }

        .logo a {
            font-size: 1.7rem;
            font-weight: 800;
            background: linear-gradient(135deg, #e09d5e, #c2742c);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            text-decoration: none;
            letter-spacing: -0.3px;
        }

        .nav-links {
            display: flex;
            gap: 2rem;
            align-items: center;
            flex-wrap: wrap;
        }

        .nav-links a {
            text-decoration: none;
            font-weight: 600;
            color: #7d6444;
            transition: 0.2s;
            font-size: 0.95rem;
        }

        .nav-links a:hover {
            color: #e08e3a;
        }

        /* 英雄区新潮设计 */
        .hero {
            text-align: center;
            padding: 3.2rem 0 2rem;
        }

        .hero-badge {
            background: #ffe9db;
            color: #c5752c;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 0.3rem 1.2rem;
            border-radius: 100px;
            font-size: 0.8rem;
            font-weight: 700;
            margin-bottom: 1.6rem;
            border: 1px solid #ffddbc;
            backdrop-filter: blur(2px);
        }

        .hero h1 {
            font-size: 3.4rem;
            font-weight: 800;
            background: linear-gradient(125deg, #b86f2e, #e7a15f);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            letter-spacing: -0.02em;
            margin-bottom: 1rem;
        }

        .hero .tagline {
            font-size: 1.3rem;
            color: #8f7454;
            max-width: 680px;
            margin: 0 auto 1rem;
            font-weight: 450;
        }

        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin-top: 2rem;
            flex-wrap: wrap;
        }

        .stat-chip {
            background: white;
            padding: 0.5rem 1.3rem;
            border-radius: 60px;
            font-weight: 600;
            color: #c57f3a;
            box-shadow: 0 2px 6px rgba(0,0,0,0.02);
            border: 1px solid #ffe3ca;
        }

        /* 核心卖点网格（创意卡片） */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
            gap: 1.8rem;
            margin: 3rem 0 2.5rem;
        }

        .feat-card {
            background: #ffffffdd;
            backdrop-filter: blur(2px);
            background: white;
            border-radius: 2rem;
            padding: 1.6rem 1.5rem;
            transition: all 0.25s ease;
            border: 1px solid #fae6d2;
            box-shadow: 0 6px 14px rgba(0,0,0,0.02);
        }

        .feat-card:hover {
            transform: translateY(-5px);
            border-color: #f5cfaa;
            box-shadow: 0 20px 30px -12px rgba(168, 102, 33, 0.12);
        }

        .feat-icon {
            font-size: 2.4rem;
            margin-bottom: 1rem;
            display: inline-block;
            background: #fff2e6;
            padding: 0.5rem;
            border-radius: 1.2rem;
        }

        .feat-card h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #bc7a3c;
            margin-bottom: 0.5rem;
        }

        .feat-card p {
            color: #7d6649;
            font-size: 0.9rem;
            line-height: 1.45;
        }

        /* 亮点展示 —— 实时测速模拟、主题切换展示区（创意块）*/
        .showcase-block {
            background: linear-gradient(125deg, #fff7ef, #fff2e5);
            border-radius: 2.5rem;
            padding: 2rem;
            margin: 2rem 0;
            border: 1px solid #ffefdd;
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            align-items: center;
            justify-content: space-between;
        }

        .speed-demo {
            flex: 1.2;
            background: #2d241a;
            border-radius: 1.5rem;
            padding: 1.2rem;
            color: #f2e0cd;
            box-shadow: 0 10px 20px rgba(0,0,0,0.08);
        }

        .speed-demo h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 0.8rem;
            letter-spacing: 0.5px;
            color: #ffd7ae;
        }

        .node-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .node-item {
            display: flex;
            justify-content: space-between;
            background: #3b2f23;
            padding: 6px 12px;
            border-radius: 60px;
            font-size: 0.75rem;
        }

        .ping {
            color: #9bffa5;
            font-weight: 600;
        }

        .theme-demo {
            flex: 0.9;
            background: #fcf7f0;
            border-radius: 1.5rem;
            padding: 1rem 1.2rem;
            border: 1px solid #ffe0be;
            text-align: center;
        }

        .theme-switch-mock {
            display: flex;
            justify-content: center;
            gap: 1rem;
            margin: 0.8rem 0;
        }

        .theme-light, .theme-dark {
            padding: 8px 16px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.75rem;
            background: white;
            border: 1px solid #ecdbbc;
        }

        .theme-dark {
            background: #2b241c;
            color: #ffe1be;
            border-color: #a97c48;
        }

        /* 配置同步 & 策略分组快捷入口 */
        .utility-row {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin: 2rem 0;
        }

        .util-card {
            flex: 1;
            background: white;
            border-radius: 1.6rem;
            padding: 1.2rem 1.5rem;
            border: 1px solid #f3e2cf;
            display: flex;
            align-items: center;
            gap: 1rem;
            transition: 0.1s;
        }

        .util-icon {
            font-size: 2rem;
        }

        .util-text h4 {
            font-size: 1.1rem;
            color: #bc7a3c;
        }

        .util-text p {
            font-size: 0.8rem;
            color: #7b6242;
        }

        /* 下载引导区 */
        .download-zone {
            background: #f9efE2;
            border-radius: 2rem;
            text-align: center;
            padding: 2rem 1.5rem;
            margin: 2rem 0;
            border: 1px solid #f5e1ca;
        }

        .btn-download {
            background: #e6a157;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 60px;
            font-weight: 700;
            font-size: 1rem;
            color: white;
            cursor: pointer;
            text-decoration: none;
            display: inline-block;
            transition: 0.2s;
            box-shadow: 0 4px 10px rgba(200, 110, 30, 0.2);
        }

        .btn-download:hover {
            background: #ce8742;
            transform: scale(0.97);
        }

        .platform-icons {
            display: flex;
            justify-content: center;
            gap: 1.8rem;
            margin-top: 1rem;
            font-size: 0.8rem;
            font-weight: 500;
            color: #a57446;
        }
		.platform-link {
    text-decoration: none;
    color: #a57446;
    transition: color 0.2s, transform 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.platform-link:hover {
    color: #e6a157;
    transform: translateY(-2px);
}

        /* 快速索引阶梯（步骤） */
        .steps-simple {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1rem;
            margin: 1rem 0 1.5rem;
        }

        .step {
            background: white;
            border-radius: 2rem;
            padding: 0.5rem 1rem;
            font-size: 0.85rem;
            font-weight: 600;
            color: #c4803e;
            border: 1px solid #ffe1c2;
        }

        /* footer */
        .footer {
            border-top: 1px solid #f5e0cb;
            background: #fffaf2;
            padding: 2rem 0;
            margin-top: 2.5rem;
            text-align: center;
            color: #ad8860;
        }

        .footer-links {
            display: flex;
            justify-content: center;
            gap: 2rem;
            flex-wrap: wrap;
            margin-bottom: 1rem;
        }

        .footer-links a {
            text-decoration: none;
            color: #b87f48;
        }

        @media (max-width: 780px) {
            .hero h1 {
                font-size: 2.2rem;
            }
            .showcase-block {
                flex-direction: column;
            }
            .nav-links {
                gap: 1rem;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 550px) {
            .hero-stats {
                gap: 0.8rem;
            }
            .util-card {
                flex-direction: column;
                text-align: center;
            }
        }