body {
            margin: 0;
            min-height: 100vh;
            background:
                radial-gradient(circle at top left, rgba(84, 84, 84, 0.20), transparent 34%),
                radial-gradient(circle at right center, rgba(128, 128, 128, 0.16), transparent 28%),
                linear-gradient(135deg, #050505 0%, #0f1012 48%, #191c20 100%);
            color: #f3f5f7;
            font-family: "Microsoft YaHei", sans-serif;
        }

        .landing-shell {
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .landing-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 28px 48px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .brand-mark {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: linear-gradient(135deg, #2b2f35 0%, #0d0e10 100%);
            border: 1px solid rgba(255, 255, 255, 0.10);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 18px 45px rgba(0, 0, 0, 0.28);
        }

        .brand-mark img {
            width: 30px;
            height: 30px;
        }

        .brand-title {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 1px;
        }

        .brand-subtitle {
            margin-top: 4px;
            color: #8f979f;
            font-size: 13px;
        }

        .admin-entry {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 136px;
            height: 44px;
            padding: 0 22px;
            border-radius: 999px;
            background: #f4f5f7;
            color: #0a0a0a;
            text-decoration: none;
            font-weight: 700;
            box-shadow: 0 18px 40px rgba(0, 0, 0, 0.24);
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }

        .admin-entry:hover {
            color: #0a0a0a;
            transform: translateY(-1px);
            box-shadow: 0 22px 52px rgba(0, 0, 0, 0.30);
        }

        .landing-main {
            flex: 1;
            display: block;
            padding: 12px 48px 60px;
        }

        .landing-content {
            width: 100%;
            max-width: 1180px;
            margin: 0 auto;
        }

        .hero-panel {
            width: 100%;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 28px;
            align-items: stretch;
        }

        .hero-copy,
        .hero-card,
        .tool-nav-panel {
            border-radius: 28px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            background: rgba(10, 12, 15, 0.78);
            box-shadow: 0 30px 90px rgba(0, 0, 0, 0.35);
            backdrop-filter: blur(12px);
        }

        .hero-copy {
            padding: 48px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 34px;
            padding: 0 14px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.06);
            color: #c8ced5;
            font-size: 12px;
            letter-spacing: 0.8px;
            text-transform: uppercase;
        }

        .hero-copy h1 {
            margin: 24px 0 16px;
            font-size: 54px;
            line-height: 1.08;
            letter-spacing: 1px;
        }

        .hero-copy p {
            margin: 0;
            max-width: 640px;
            color: #9da5ad;
            font-size: 16px;
            line-height: 1.9;
        }

        .hero-actions {
            margin-top: 34px;
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .primary-action,
        .secondary-action {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 156px;
            height: 46px;
            padding: 0 20px;
            border-radius: 14px;
            text-decoration: none;
            font-weight: 700;
        }

        .primary-action {
            background: #f3f5f7;
            color: #0c0d0f;
        }

        .secondary-action {
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: #d2d8de;
            background: rgba(255, 255, 255, 0.03);
        }

        .hero-card {
            padding: 28px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .card-kicker {
            color: #8e959d;
            font-size: 12px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .card-grid {
            margin-top: 20px;
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 14px;
        }

        .metric-card {
            border-radius: 18px;
            background: #111418;
            border: 1px solid rgba(255, 255, 255, 0.08);
            padding: 18px;
        }

        .metric-label {
            color: #858d96;
            font-size: 13px;
        }

        .metric-value {
            margin-top: 12px;
            font-size: 22px;
            font-weight: 700;
        }

        .metric-desc {
            margin-top: 8px;
            color: #6e7680;
            font-size: 12px;
            line-height: 1.6;
        }

        .tool-nav-panel {
            margin-top: 22px;
            padding: 22px;
            display: grid;
            grid-template-columns: 210px minmax(0, 1fr);
            gap: 18px;
            align-items: stretch;
        }

        .tool-nav-head {
            display: flex;
            align-items: center;
            justify-content: flex-start;
            gap: 20px;
        }

        .tool-nav-head h2 {
            margin: 8px 0 0;
            font-size: 22px;
            line-height: 1.2;
        }

        .tool-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 12px;
        }

        .tool-card {
            min-height: 132px;
            border-radius: 14px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            background: #111418;
            padding: 16px 18px;
            color: #f3f5f7;
            text-decoration: none;
            display: grid;
            grid-template-columns: minmax(0, 1fr);
            align-content: start;
            gap: 8px;
            transition: transform 0.2s ease, border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
        }

        .tool-card:hover {
            color: #f3f5f7;
            transform: translateY(-1px);
            border-color: rgba(255, 255, 255, 0.16);
            background: #161a20;
            box-shadow: 0 22px 52px rgba(0, 0, 0, 0.30);
        }

        .tool-label {
            color: #858d96;
            font-size: 13px;
        }

        .tool-main {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            gap: 12px;
        }

        .tool-main strong {
            font-size: 24px;
            line-height: 1.2;
        }

        .tool-version {
            flex: none;
            max-width: 42%;
            color: #d7dde4;
            font-size: 14px;
            font-weight: 700;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .tool-meta {
            color: #707984;
            font-size: 12px;
            line-height: 1.4;
        }

        .tool-desc {
            color: #8e969f;
            font-size: 13px;
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            white-space: pre-line;
        }

        .icp-info {
            padding: 0 20px 18px;
            text-align: center;
            color: #6f7882;
            font-size: 12px;
        }

        @media (max-width: 960px) {
            .landing-header,
            .landing-main {
                padding-left: 22px;
                padding-right: 22px;
            }

            .hero-panel {
                grid-template-columns: 1fr;
            }

            .tool-nav-panel {
                grid-template-columns: 1fr;
            }

            .tool-grid {
                grid-template-columns: 1fr;
            }

            .hero-copy {
                padding: 28px;
            }

            .hero-copy h1 {
                font-size: 36px;
            }
        }