/* ==========================================================================
   带宽与下载速度换算 · 页面专属样式
   设计意图：左边填速率与整条链路，右边一块「读数 + 链路体检」面板——
   大数字是扣掉开销后的真实下载速度，下面一条达成率刻度条，
   再往下把套餐/网卡/网线/路由/WiFi 逐段排队，最慢那段标红说明瓶颈在哪。
   仅本页引用。
   ========================================================================== */

.ns-desk {
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    gap: 20px;
    align-items: start;
    margin-top: 26px;
}

/* ---------- 输入 ---------- */
.ns-rate {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 14px;
    margin-bottom: 12px;
}

.ns-units {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.ns-units input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.ns-units span {
    display: inline-block;
    cursor: pointer;
    font-family: var(--d3-mono);
    font-size: 12px;
    font-weight: 650;
    padding: 6px 11px;
    border: 1px solid var(--d3-line-2);
    border-radius: 6px;
    color: var(--d3-ink-2);
    background: var(--d3-paper);
    transition: all .14s ease;
    user-select: none;
}

.ns-units span:hover {
    border-color: var(--d3-accent);
    color: var(--d3-accent);
}

.ns-units input:checked + span {
    background: var(--d3-accent);
    border-color: var(--d3-accent);
    color: var(--d3-accent-ink);
}

.ns-units input:focus-visible + span {
    outline: 2px solid rgba(var(--d3-accent-rgb), .6);
    outline-offset: 2px;
}

.ns-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 13px 14px;
}

.ns-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px dashed var(--d3-line);
}

.ns-btn {
    appearance: none;
    cursor: pointer;
    font-family: inherit;
    font-size: 13px;
    font-weight: 650;
    line-height: 1;
    padding: 10px 15px;
    border-radius: 8px;
    border: 1px solid var(--d3-accent);
    background: var(--d3-accent);
    color: var(--d3-accent-ink);
    transition: filter .15s ease, background .15s ease, color .15s ease, border-color .15s ease;
}

.ns-btn:hover { filter: brightness(1.06); }

.ns-btn-ghost {
    background: transparent;
    border-color: var(--d3-line-2);
    color: var(--d3-ink-2);
}

.ns-btn-ghost:hover {
    border-color: var(--d3-accent);
    color: var(--d3-accent);
    background: rgba(var(--d3-accent-rgb), .06);
}

.ns-btn-sm { padding: 8px 12px; font-size: 12.5px; }

.ns-alerts { display: grid; gap: 8px; margin-top: 14px; }
.ns-alerts:empty { display: none; }

/* ---------- 右侧读数 ---------- */
.ns-result {
    background: var(--d3-card);
    border: 1px solid var(--d3-line);
    border-radius: var(--d3-radius);
    padding: 16px 18px 18px;
}

.ns-readout { padding-bottom: 12px; }

.ns-readout-label {
    font-family: var(--d3-mono);
    font-size: 10.5px;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--d3-ink-3);
}

.ns-readout-value {
    display: flex;
    align-items: baseline;
    gap: 6px;
    margin: 4px 0 0;
    font-family: var(--d3-mono);
    font-variant-numeric: tabular-nums;
    font-size: clamp(38px, 5.4vw, 52px);
    font-weight: 700;
    line-height: 1.02;
    letter-spacing: -.045em;
    color: var(--d3-accent);
}

.ns-readout-value small {
    font-family: var(--d3-sans);
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0;
    color: var(--d3-ink-3);
}

.ns-readout-sub {
    margin: 5px 0 0;
    font-size: 12.5px;
    line-height: 1.6;
    color: var(--d3-ink-3);
}

/* 达成率刻度条 */
.ns-gauge {
    position: relative;
    height: 8px;
    margin-top: 12px;
    border-radius: 4px;
    background: var(--d3-paper-2);
    overflow: hidden;
}

.ns-gauge > span {
    display: block;
    height: 100%;
    width: 0;
    border-radius: 4px;
    background: linear-gradient(to right,
        rgba(var(--d3-accent-rgb), .55),
        var(--d3-accent));
    transition: width .22s ease;
}

.ns-gauge-tick {
    position: absolute;
    top: 0;
    width: 1px;
    height: 100%;
    background: rgba(255, 255, 255, .55);
}

.ns-gauge-note {
    margin: 7px 0 0;
    font-size: 11.5px;
    color: var(--d3-ink-3);
}

/* 四格换算 */
.ns-conv {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    margin: 4px 0 0;
    background: var(--d3-line);
    border: 1px solid var(--d3-line);
    border-radius: var(--d3-radius-sm);
    overflow: hidden;
}

.ns-conv > div {
    background: var(--d3-paper);
    padding: 9px 11px;
}

.ns-conv dt {
    font-size: 11px;
    color: var(--d3-ink-3);
    margin-bottom: 2px;
}

.ns-conv dd {
    margin: 0;
    font-family: var(--d3-mono);
    font-variant-numeric: tabular-nums;
    font-size: 13.5px;
    font-weight: 650;
    color: var(--d3-ink);
}

/* ---------- 链路体检 ---------- */
.ns-chain-wrap { margin-top: 14px; }

.ns-chain-head {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 9px;
}

.ns-chain-head h3 {
    font-size: 12.5px;
    font-weight: 700;
    margin: 0;
}

.ns-chain-head span {
    font-family: var(--d3-mono);
    font-size: 11px;
    color: var(--d3-ink-3);
}

.ns-chain { display: grid; gap: 6px; }

.ns-node {
    display: grid;
    grid-template-columns: 74px minmax(0, 1fr) 78px;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    color: var(--d3-ink-2);
    padding: 7px 9px;
    border-radius: 7px;
    background: var(--d3-paper);
    border: 1px solid transparent;
}

.ns-node.is-cap {
    border-color: rgba(var(--d3-accent-rgb), .5);
    background: rgba(var(--d3-accent-rgb), .08);
}

.ns-node-name { color: var(--d3-ink-3); white-space: nowrap; }

.ns-node-track {
    height: 6px;
    border-radius: 3px;
    background: var(--d3-paper-2);
    overflow: hidden;
}

.ns-node-track i {
    display: block;
    height: 100%;
    border-radius: 3px;
    background: rgba(var(--d3-accent-rgb), .45);
}

.ns-node.is-cap .ns-node-track i { background: var(--d3-accent); }

.ns-node-val {
    font-family: var(--d3-mono);
    font-variant-numeric: tabular-nums;
    font-size: 11.5px;
    text-align: right;
    color: var(--d3-ink);
    white-space: nowrap;
}

.ns-node.is-cap .ns-node-val { color: var(--d3-accent); font-weight: 700; }

.ns-chain-note {
    margin: 10px 0 0;
    font-size: 11.5px;
    line-height: 1.7;
    color: var(--d3-ink-3);
}

/* ---------- 传输耗时 ---------- */
.ns-files-wrap,
.ns-plans-wrap,
.ns-batch-wrap {
    margin-top: 18px;
    background: var(--d3-card);
    border: 1px solid var(--d3-line);
    border-radius: var(--d3-radius);
    padding: 15px 18px 17px;
}

.ns-sec-head {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 8px 14px;
    padding-bottom: 11px;
    margin-bottom: 13px;
    border-bottom: 1px solid var(--d3-line);
}

.ns-sec-head h2 { font-size: var(--d3-fs-h3); }

.ns-sec-head span {
    font-size: 12px;
    color: var(--d3-ink-3);
    margin-left: auto;
}

.ns-files {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1px;
    background: var(--d3-line);
    border: 1px solid var(--d3-line);
    border-radius: var(--d3-radius-sm);
    overflow: hidden;
}

.ns-file {
    background: var(--d3-paper);
    padding: 11px 13px 13px;
    min-width: 0;
}

.ns-file-top {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 8px;
}

.ns-file-name {
    font-size: 12px;
    color: var(--d3-ink-2);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ns-file-size {
    font-family: var(--d3-mono);
    font-size: 11px;
    color: var(--d3-ink-3);
    white-space: nowrap;
}

.ns-file-time {
    margin: 7px 0 0;
    font-family: var(--d3-mono);
    font-variant-numeric: tabular-nums;
    font-size: 19px;
    font-weight: 700;
    letter-spacing: -.02em;
    color: var(--d3-ink);
}

.ns-file-time small {
    font-family: var(--d3-sans);
    font-size: 11px;
    font-weight: 600;
    color: var(--d3-ink-3);
    margin-left: 3px;
}

.ns-file-bar {
    height: 3px;
    margin-top: 9px;
    border-radius: 2px;
    background: var(--d3-paper-2);
    overflow: hidden;
}

.ns-file-bar i {
    display: block;
    height: 100%;
    border-radius: 2px;
    background: rgba(var(--d3-accent-rgb), .55);
}

/* ---------- 套餐表 ---------- */
.ns-plan-table { min-width: 620px; }

.ns-plan-table td:not(:first-child),
.ns-batch-table td:not(:first-child) {
    font-family: var(--d3-mono);
    font-variant-numeric: tabular-nums;
}

.ns-plan-table tbody tr.is-cur td {
    background: rgba(var(--d3-accent-rgb), .09);
}

.ns-plan-tag {
    display: inline-block;
    margin-left: 7px;
    padding: 1px 6px;
    border-radius: 999px;
    font-family: var(--d3-sans);
    font-size: 10px;
    font-weight: 650;
    color: var(--d3-accent);
    background: rgba(var(--d3-accent-rgb), .14);
    vertical-align: 1px;
}

/* ---------- 批量 ---------- */
.ns-batch {
    display: grid;
    grid-template-columns: minmax(240px, 330px) minmax(0, 1fr);
    gap: 16px;
    align-items: start;
}

.ns-batch textarea {
    width: 100%;
    font-family: var(--d3-mono);
    font-size: 12.5px;
    line-height: 1.75;
    color: var(--d3-ink);
    background: var(--d3-paper);
    border: 1px solid var(--d3-line-2);
    border-radius: var(--d3-radius-sm);
    padding: 10px 12px;
    resize: vertical;
    outline: none;
    transition: border-color .15s ease, box-shadow .15s ease;
}

.ns-batch textarea:focus {
    border-color: var(--d3-accent);
    box-shadow: 0 0 0 3px rgba(var(--d3-accent-rgb), .13);
}

.ns-batch-act {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-top: 9px;
}

.ns-batch-act .d3-hint { margin: 0; }

.ns-batch-msg {
    margin: 8px 0 0;
    font-size: 11.5px;
    line-height: 1.6;
    color: var(--d3-ink-3);
}

.ns-batch-msg.is-bad { color: var(--d3-bad); }

.ns-batch-table { min-width: 480px; }

.ns-empty {
    text-align: center !important;
    color: var(--d3-ink-3);
    font-family: var(--d3-sans) !important;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
    .ns-desk { grid-template-columns: minmax(0, 1fr); }
    .ns-files { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .ns-batch { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 640px) {
    .ns-rate { grid-template-columns: minmax(0, 1fr); }
    .ns-grid { grid-template-columns: minmax(0, 1fr); }
    .ns-grid .span-2 { grid-column: span 1; }
    .ns-node { grid-template-columns: 62px minmax(0, 1fr) 72px; }
    .ns-readout-value { font-size: 34px; }
    .ns-files-wrap, .ns-plans-wrap, .ns-batch-wrap { padding: 13px 14px 15px; }
    .ns-units span { padding: 6px 9px; font-size: 11.5px; }
}

@media print {
    .d3-top, .d3-foot, .ns-actions, .ns-batch-wrap, .d3-related { display: none !important; }
    .ns-desk { grid-template-columns: 1fr; }
    body { background: #fff; }
}