.ink-header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1000;
        background: linear-gradient(180deg, rgba(245, 242, 235, 0.98) 0%, rgba(245, 242, 235, 0.95) 100%);
        backdrop-filter: blur(10px);
        border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    }

    .ink-header-inner {
        max-width: 1400px;
        margin: 0 auto;
        padding: 0 40px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 70px;
    }

    .ink-logo {
        display: flex;
        align-items: center;
        text-decoration: none;
        gap: 12px;
    }

    .ink-logo img {
        height: 45px;
        width: auto;
    }

    .ink-logo-text {
        font-family: 'STXingkai', '华文行楷', 'KaiTi', '楷体', cursive;
        font-size: 32px;
        color: #1a1a1a;
        letter-spacing: 2px;
    }

    .ink-nav {
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .ink-nav-item {
        padding: 10px 18px;
        font-size: 15px;
        font-family: 'STXingkai', '华文行楷', 'KaiTi', '楷体', cursive;
        color: #4a4a4a;
        text-decoration: none;
        border-radius: 6px;
        transition: all 0.3s ease;
        position: relative;
    }

    .ink-nav-item::after {
        content: '';
        position: absolute;
        bottom: 6px;
        left: 50%;
        width: 0;
        height: 2px;
        background: #8b2500;
        transform: translateX(-50%);
        transition: width 0.3s ease;
    }

    .ink-nav-item:hover {
        color: #1a1a1a;
    }

    .ink-nav-item:hover::after {
        width: 60%;
    }

    .ink-nav-item.active {
        color: #8b2500;
        font-weight: 500;
    }

    .ink-nav-item.active::after {
        width: 60%;
    }

    .ink-search {
        display: none;
    }

    /* 移动端菜单按钮 */
    .ink-menu-toggle {
        display: none;
        flex-direction: column;
        gap: 5px;
        cursor: pointer;
        padding: 10px;
    }

    .ink-menu-toggle span {
        width: 24px;
        height: 2px;
        background: #1a1a1a;
        transition: all 0.3s ease;
    }

    /* 占位高度 */
    .ink-header-placeholder {
        height: 70px;
    }

    @media (max-width: 1024px) {
        .ink-header-inner {
            padding: 0 20px;
        }

        .ink-nav {
            position: fixed;
            top: 70px;
            left: 0;
            right: 0;
            background: rgba(245, 242, 235, 0.98);
            flex-direction: column;
            padding: 20px;
            gap: 0;
            transform: translateY(-100%);
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            border-bottom: 1px solid rgba(0, 0, 0, 0.08);
        }

        .ink-nav.active {
            transform: translateY(0);
            opacity: 1;
            visibility: visible;
        }

        .ink-nav-item {
            width: 100%;
            text-align: center;
            padding: 15px;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        }

        .ink-nav-item::after {
            display: none;
        }

        .ink-menu-toggle {
            display: flex;
        }

        .ink-search {
            display: none;
        }
    }