/* ============================================================
 *  Tool Card — 新视觉语言
 *  使用 I/O Pill (input/action/output) 取代图标
 *  与站点品牌色 var(--primary-color) 一致
 * ============================================================ */

.toolcard {
    --tc-accent: var(--primary-color, #4f46e5);
    --tc-accent-soft: rgba(79, 70, 229, 0.08);
    --tc-border: #ececec;
    --tc-border-strong: #d4d4d8;
    --tc-text: #18181b;
    --tc-text-2: #52525b;
    --tc-text-3: #a1a1aa;

    position: relative;
    display: block;
    background: #fff;
    border: 1px solid var(--tc-border);
    border-radius: 10px;
    padding: 22px 22px 18px;
    text-decoration: none;
    color: inherit;
    transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease;
    height: 100%;
    cursor: pointer;
}

.toolcard:hover {
    transform: translateY(-2px);
    border-color: var(--tc-border-strong);
    box-shadow: 0 6px 20px -8px rgba(0, 0, 0, 0.12);
    color: inherit;
    text-decoration: none;
}

/* 顶部品牌色细条 */
.toolcard::before {
    content: "";
    position: absolute;
    top: 0;
    left: 16px;
    right: 16px;
    height: 2px;
    background: var(--tc-accent);
    border-radius: 0 0 2px 2px;
    opacity: 0.85;
}

/* ─── I/O Pill 行 ─────────────────────────────────── */
.toolcard__io {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 14px;
    min-height: 28px;
    flex-wrap: wrap;
}

.iopill {
    display: inline-flex;
    align-items: center;
    height: 26px;
    padding: 0 10px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.02em;
    background: #f4f4f5;
    color: var(--tc-text);
    border: 1px solid var(--tc-border);
    white-space: nowrap;
    font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    line-height: 1;
}

/* 输入 pill — 用品牌色突出 */
.iopill--accent {
    background: var(--tc-accent-soft);
    color: var(--tc-accent);
    border-color: transparent;
}

/* 动作 pill — 虚线边框，表达"过程" */
.iopill--action {
    background: transparent;
    border: 1px dashed var(--tc-border-strong);
    color: var(--tc-text-2);
    text-transform: uppercase;
    font-size: 10.5px;
    letter-spacing: 0.08em;
    height: 22px;
    padding: 0 8px;
    font-family: inherit;
}

.ioarrow {
    color: var(--tc-text-3);
    font-size: 14px;
    font-weight: 500;
    line-height: 1;
}

.ioarrow--bi {
    letter-spacing: -2px;
}

/* ─── 卡片内容 ────────────────────────────────────── */
.toolcard__title {
    margin: 0 0 6px;
    font-size: 16px;
    font-weight: 600;
    color: var(--tc-text);
    letter-spacing: -0.005em;
    line-height: 1.35;
}

.toolcard__desc {
    margin: 0;
    color: var(--tc-text-2);
    font-size: 13.5px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.toolcard__footer {
    margin-top: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    color: var(--tc-text-3);
}

.toolcard__cat {
    color: var(--tc-accent);
    font-weight: 500;
}

.toolcard__cta {
    color: var(--tc-text-3);
    transition: color .15s ease, transform .15s ease;
    font-weight: 500;
}

.toolcard:hover .toolcard__cta {
    color: var(--tc-accent);
    transform: translateX(2px);
}

/* 鉴权徽标（小尺寸） */
.toolcard__auth {
    margin-left: auto;
    font-size: 10.5px;
    color: var(--tc-text-3);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

/* ─── 移动端 ─────────────────────────────────────── */
@media (max-width: 575.98px) {
    .toolcard {
        padding: 18px 18px 16px;
    }
    .toolcard:active {
        transform: scale(0.99);
    }
    .iopill {
        font-size: 11.5px;
    }
}