* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', 'Noto Sans', sans-serif;
        }

        body {
            background-color: #f4f8fc;
            color: #1e2a3a;
            line-height: 1.6;
        }

        /* 整体容器 */
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 导航栏 */
        .navbar {
            background: #0b1a2a;
            color: white;
            padding: 12px 0;
            /*position: sticky;*/
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 12px rgba(0,0,0,0.2);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 15px;
        }

        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            background: linear-gradient(135deg, #f9d423, #fdaa33);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: 1px;
        }

        .nav-menu {
            display: flex;
            gap: 8px 20px;
            flex-wrap: wrap;
            list-style: none;
        }

        .nav-menu li a {
            color: #ecf0f3;
            text-decoration: none;
            font-weight: 500;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: 0.2s;
            font-size: 1.1rem;
        }

        .nav-menu li a:hover {
            border-bottom-color: #f9d423;
            color: #f9d423;
        }

        /* banner 区域 */
        .banner {
            background: linear-gradient(105deg, #05141f 0%, #1b3b4f 100%);
            border-radius: 0 0 40px 40px;
            margin: 0 0 40px;
            padding: 40px 30px;
            color: white;
            box-shadow: 0 15px 25px rgba(0,20,30,0.5);
            position: relative;
            overflow: hidden;
        }

        .banner::after {
            content: "⚽⚽⚽";
            font-size: 180px;
            position: absolute;
            bottom: -30px;
            right: 20px;
            opacity: 0.1;
            color: #fdaa33;
            transform: rotate(-10deg);
            pointer-events: none;
        }

        .banner-content {
            max-width: 750px;
        }

        .banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            text-shadow: 2px 2px 8px rgba(0,0,0,0.3);
        }

        .banner p {
            font-size: 1.3rem;
            margin-bottom: 25px;
            opacity: 0.95;
            background: rgba(0,0,0,0.3);
            padding: 15px 20px;
            border-radius: 50px 8px 8px 50px;
            display: inline-block;
            backdrop-filter: blur(3px);
        }

        .banner .highlight {
            background: #f9d423;
            color: #0b1a2a;
            padding: 5px 15px;
            border-radius: 40px;
            font-weight: 700;
            margin-right: 6px;
        }

        /* 通用版块样式 */
        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: #0f2b3c;
            margin: 50px 0 30px;
            border-left: 8px solid #f9d423;
            padding-left: 25px;
        }

        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 30px;
            margin-bottom: 40px;
        }

        .card {
            background: white;
            border-radius: 28px;
            padding: 28px 22px;
            box-shadow: 0 12px 28px rgba(0, 10, 20, 0.1);
            transition: all 0.25s;
            border: 1px solid rgba(255,215,0,0.2);
        }

        .card:hover {
            transform: translateY(-6px);
            box-shadow: 0 24px 40px rgba(0,40,60,0.18);
            border-color: #f9d423;
        }

        .card h3 {
            font-size: 1.8rem;
            color: #154256;
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .card h3 span {
            background: #ffd966;
            border-radius: 50px;
            padding: 0 12px;
            font-size: 1.2rem;
            color: #1e3c4f;
        }

        .card p {
            font-size: 1.05rem;
            color: #2d3f4e;
            margin-bottom: 15px;
        }

        .card strong {
            color: #b45f06;
            background: #fff1d2;
            padding: 2px 6px;
            border-radius: 12px;
            font-weight: 700;
            /* 加粗的关键词带背景更醒目，同时保持加粗 */
        }

        /* 常见问题区域 */
        .faq-area {
            background: #eaf0f6;
            border-radius: 48px 48px 20px 20px;
            padding: 40px 35px;
            margin: 60px 0 30px;
        }

        .faq-grid {
            display: grid;
            grid-template-columns: repeat(1, 1fr);
            gap: 30px 40px;
        }

        .faq-item {
            background: white;
            border-radius: 30px;
            padding: 25px;
            box-shadow: 0 6px 16px rgba(0,0,0,0.03);
        }

        .faq-item .q {
            font-size: 1.3rem;
            font-weight: 700;
            color: #06314b;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
        }

        .faq-item .q::before {
            content: "❓";
            background: #f9d423;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-right: 12px;
            font-size: 1.2rem;
            color: #0f1f2c;
        }

        .faq-item .a {
            color: #1d3445;
            padding-left: 18px;
            border-left: 4px solid #f9d423;
        }

        .faq-item .a strong {
            background: #fce9c4;
            padding: 2px 6px;
            border-radius: 20px;
        }

        /* 热门平台推荐 —— 一行五个按钮 */
        .hot-platforms {
            background: #ffffffd9;
            backdrop-filter: blur(10px);
            border-radius: 60px;
            padding: 35px 30px;
            margin: 30px 0 50px;
            box-shadow: 0 12px 30px rgba(100, 70, 0, 0.15);
            border: 2px solid #f9d42360;
        }

        .hot-title {
            font-size: 1.9rem;
            text-align: center;
            color: #1b3d4f;
            margin-bottom: 25px;
            font-weight: 700;
        }

        .platform-buttons {
            display: grid;
            grid-template-columns: repeat(5, 1fr);  /* 强制一行五个，完美符合要求 */
            gap: 15px;
        }

        .platform-btn {
            background: linear-gradient(145deg, #f5f7fa, #ffffff);
            border: 2px solid #cf9f2e;
            color: #1e3c4f;
            text-decoration: none;
            font-weight: 700;
            font-size: 1.2rem;
            padding: 18px 8px;
            border-radius: 60px;
            text-align: center;
            transition: 0.2s;
            box-shadow: 0 8px 0 #9e701a;
            letter-spacing: 1px;
            display: block;
            line-height: 1.2;
            word-break: keep-all;
        }

        .platform-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 0 #9e701a;
            background: #fff7e0;
        }

        .platform-btn:active {
            transform: translateY(4px);
            box-shadow: 0 4px 0 #9e701a;
        }

        /* 底部站内链接区 */
        .footer-links {
            background: #102b38;
            color: #ddd;
            padding: 30px 0;
            border-radius: 40px 40px 0 0;
            margin-top: 50px;
        }

        .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
        }

        .footer-menu {
            display: flex;
            gap: 25px;
            flex-wrap: wrap;
        }

        .footer-menu a {
            color: #f1d27b;
            text-decoration: none;
            font-weight: 500;
        }

        .footer-menu a:hover {
            text-decoration: underline;
        }

        .copyright {
            font-size: 0.95rem;
            color: #a0b8c7;
        }

        /* 移动端优化 */
        @media (max-width: 800px) {
            .banner h1 { font-size: 2rem; }
            .section-title { font-size: 1.9rem; }
            .faq-grid { grid-template-columns: 1fr; }
            .platform-buttons { gap: 8px; }
            .platform-btn { font-size: 0.9rem; padding: 14px 4px; }
        }

        @media (max-width: 550px) {
            .nav-container { flex-direction: column; align-items: stretch; }
            .logo { text-align: center; }
            .nav-menu { justify-content: center; }
            .banner p { font-size: 1.1rem; }
            .card-grid { grid-template-columns: 1fr; }
            .platform-btn { font-size: 0.8rem; padding: 12px 2px; }
        }

        /* 强调加粗关键词的通用样式 */
        strong.key {
            background: #f9e3a0;
            padding: 0 6px;
            border-radius: 20px;
            font-weight: 800;
            color: #003153;
        }