* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            background: #0b181c;
            font-family: 'Segoe UI', 'Microsoft YaHei', 'PingFang SC', sans-serif;
            padding: 40px 20px;
            display: flex;
            justify-content: center;
        }
        .container {
            max-width: 1100px;
            width: 100%;
            background: #1a2f32;
            border-radius: 48px;
            padding: 35px 35px 40px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.8);
            border: 1px solid #507a75;
        }
        h1 {
            text-align: center;
            color: #f2e3c0;
            text-shadow: 0 0 12px #b8a06b, 0 2px 0 #3d2f1a;
            font-weight: 400;
            letter-spacing: 6px;
            font-size: 2.6rem;
            margin-bottom: 6px;
        }
        .sub {
            text-align: center;
            color: #b7d3c6;
            font-size: 0.9rem;
            border-top: 1px solid #3d6b62;
            border-bottom: 1px solid #3d6b62;
            padding: 8px 0;
            margin: 0 auto 28px auto;
            width: fit-content;
            padding-left: 40px;
            padding-right: 40px;
            border-radius: 60px;
            background: #0e2327;
            letter-spacing: 2px;
        }

        .timeline {
            position: relative;
            padding-left: 40px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 12px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: linear-gradient(to bottom, #f5d742, #6b9a8f, #31544b);
            border-radius: 6px;
        }

        .log-item {
            position: relative;
            margin-bottom: 28px;
            padding: 18px 24px 18px 30px;
            background: #12292d;
            border-radius: 16px;
            border-left: 4px solid #f5d742;
            box-shadow: 0 4px 0 #0b1a1d, inset 0 1px 0 #4d7a70;
            transition: 0.15s;
        }
        .log-item:hover {
            background: #163438;
            border-left-color: #e5d7a0;
        }
        .log-item::before {
            content: '';
            position: absolute;
            left: -32px;
            top: 22px;
            width: 14px;
            height: 14px;
            background: #f5d742;
            border-radius: 50%;
            border: 3px solid #1a2f32;
            box-shadow: 0 0 0 3px #f5d742;
        }

        .log-date {
            font-size: 1.2rem;
            font-weight: 600;
            color: #f5e7b0;
            letter-spacing: 1px;
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .log-date .tag {
            font-size: 0.7rem;
            font-weight: 400;
            background: #3d6b58;
            color: #fff7e0;
            padding: 2px 14px;
            border-radius: 40px;
            letter-spacing: 1px;
        }
        .log-date .tag.update {
            background: #5f4f36;
            border: 1px solid #f5d742;
        }
        .log-date .tag.fix {
            background: #4d3a3a;
            border: 1px solid #c97a7a;
        }
        .log-date .tag.new {
            background: #2d5a4a;
            border: 1px solid #6bc9a0;
        }

        .log-content {
            color: #d4e4dc;
            font-size: 0.95rem;
            line-height: 1.8;
            padding-left: 4px;
        }
        .log-content ul {
            list-style: none;
            padding: 0;
            margin: 4px 0 0 0;
        }
        .log-content ul li {
            padding: 2px 0 2px 20px;
            position: relative;
            color: #cbdcd2;
        }
        .log-content ul li::before {
            content: '▸';
            position: absolute;
            left: 0;
            color: #f5d742;
            font-weight: 700;
        }
        .log-content ul li .highlight {
            color: #f5e7b0;
            font-weight: 500;
        }
        .log-content ul li .highlight-gold {
            color: #f5d742;
            font-weight: 600;
        }
        .log-content ul li .highlight-green {
            color: #6bc9a0;
        }
        .log-content ul li .highlight-blue {
            color: #7bbdce;
        }

        .footnote {
            margin-top: 30px;
            color: #76938a;
            text-align: center;
            border-top: 1px solid #31544b;
            padding-top: 18px;
            font-size: 0.85rem;
            letter-spacing: 1px;
        }

        @media (max-width: 700px) {
            .container { padding: 18px 14px; }
            h1 { font-size: 1.8rem; letter-spacing: 4px; }
            .timeline { padding-left: 28px; }
            .log-item { padding: 14px 16px; }
            .log-item::before { left: -22px; width: 10px; height: 10px; }
            .log-date { font-size: 1rem; }
            .log-content { font-size: 0.85rem; }
        }