.tool-section {
    padding: 2rem 0 5rem;
    background: #fff;
}

/* ========== 查询卡片 ========== */
.ipv6-search-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    padding: 1.5rem;
}
.ipv6-search-title {
    font-size: 0.92rem;
    font-weight: 700;
    color: #1e293b;
    margin: 0 0 0.75rem;
}

/* 快速标签 */
.ipv6-tag {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    background: #f1f5f9;
    border: 1px solid #e2e8f0;
    border-radius: 20px;
    font-size: 0.78rem;
    font-family: 'SF Mono','Fira Code','Consolas',monospace;
    color: #475569;
    cursor: pointer;
    transition: all 0.15s;
    white-space: nowrap;
}
.ipv6-tag:hover {
    background: #e0e7ff;
    border-color: #818cf8;
    color: #4f46e5;
}

/* ========== 结果卡片 ========== */
.ipv6-result-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    padding: 1.5rem;
}

/* ========== 区块标题 ========== */
.ipv6-section-title {
    display: flex;
    align-items: center;
    font-size: 0.88rem;
    font-weight: 700;
    color: #334155;
    margin: 0 0 0.85rem;
}

/* ========== 结果表格 ========== */
.ipv6-table-wrap {
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    overflow: hidden;
}
.ipv6-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}
.ipv6-table th {
    background: #f8fafc;
    padding: 0.75rem 1rem;
    text-align: left;
    font-weight: 600;
    color: #64748b;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid #e2e8f0;
    width: 200px;
    white-space: nowrap;
}
.ipv6-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid #f1f5f9;
    color: #334155;
    font-size: 0.82rem;
    vertical-align: middle;
}
.ipv6-table tr:last-child td { border-bottom: none; }
.ipv6-table tbody tr:hover { background: #f8fafc; }
.ipv6-table td.mono {
    font-family: 'SF Mono','Fira Code','Consolas',monospace;
    font-size: 0.84rem;
    word-break: break-all;
    color: #1e293b;
    letter-spacing: 0.3px;
}
.ipv6-table .copy-cell-btn {
    background: none;
    border: none;
    color: #94a3b8;
    cursor: pointer;
    padding: 0.15rem;
    border-radius: 4px;
    transition: all 0.15s;
    line-height: 1;
    margin-left: 0.35rem;
}
.ipv6-table .copy-cell-btn:hover { color: #4f46e5; background: #eef2ff; }

/* ========== 说明卡片 ========== */
.ipv6-info-card {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    padding: 1.5rem;
}
.ipv6-desc-grid {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.ipv6-desc-item {
    display: flex;
    gap: 1rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid #f1f5f9;
    align-items: baseline;
}
.ipv6-desc-item:last-child {
    border-bottom: none;
}
.ipv6-desc-label {
    font-size: 0.78rem;
    font-weight: 700;
    color: #64748b;
    min-width: 110px;
    flex-shrink: 0;
}
.ipv6-desc-text {
    font-size: 0.82rem;
    color: #64748b;
    line-height: 1.6;
}
.ipv6-desc-text code {
    font-family: 'SF Mono','Fira Code','Consolas',monospace;
    font-size: 0.78rem;
    background: #e2e8f0;
    padding: 0.1rem 0.35rem;
    border-radius: 4px;
    color: #475569;
    word-break: break-all;
}

@media (max-width: 767px) {
    .tool-section { padding: 1.5rem 0 3rem; }
    .ipv6-desc-item { flex-direction: column; gap: 0.25rem; }
    .ipv6-desc-label { min-width: auto; }
}