/* ==========================================================================
   服务器带宽与并发估算 · 页面专属样式
   设计意图：整页做成一块「容量规划控制台」——顶部四块读数（峰值带宽/回源/并发/月流量），
   下面左边调参、右边一根对数码率的档位标尺，指针停在算出来的位置上；
   再往下是选型结论、档位对照表与批量测算。数字一律等宽对齐，像看监控面板。
   仅本页引用。
   ========================================================================== */

.bw-console {
    margin-top: 26px;
    background: var(--d3-card);
    border: 1px solid var(--d3-line);
    border-radius: var(--d3-radius);
    padding: 16px;
    /* 顶部一条渐隐的「信号线」，把控制台和正文区分开 */
    background-image: linear-gradient(to right,
        rgba(var(--d3-accent-rgb), .55),
        rgba(var(--d3-accent-rgb), .08) 55%,
        transparent 85%);
    background-size: 100% 2px;
    background-repeat: no-repeat;
}

/* ---------- 口径切换 ---------- */
.bw-modes {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px 16px;
    margin-bottom: 14px;
}

.bw-mode { white-space: nowrap; }

.bw-mode-hint {
    font-size: 12px;
    color: var(--d3-ink-3);
    margin: 0;
}

/* ---------- 读数 ---------- */
.bw-kpis {
    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;
}

.bw-kpi {
    background: var(--d3-card);
    padding: 12px 14px 13px;
    min-width: 0;
}

.bw-kpi.is-main {
    background: rgba(var(--d3-accent-rgb), .1);
    box-shadow: inset 0 2px 0 var(--d3-accent);
}

.bw-kpi-label {
    display: block;
    font-size: 11.5px;
    color: var(--d3-ink-3);
    letter-spacing: .02em;
    margin-bottom: 4px;
}

.bw-kpi-value {
    display: flex;
    align-items: baseline;
    gap: 5px;
    margin: 0;
    font-family: var(--d3-mono);
    font-variant-numeric: tabular-nums;
    font-size: clamp(22px, 2.6vw, 30px);
    font-weight: 700;
    line-height: 1.12;
    letter-spacing: -.03em;
    color: var(--d3-ink);
}

.bw-kpi.is-main .bw-kpi-value { color: var(--d3-accent); }

.bw-kpi-value small {
    font-family: var(--d3-sans);
    font-size: 11.5px;
    font-weight: 600;
    letter-spacing: 0;
    color: var(--d3-ink-3);
}

.bw-kpi-note {
    display: block;
    margin-top: 5px;
    font-size: 11px;
    line-height: 1.55;
    color: var(--d3-ink-3);
}

/* ---------- 主体：左参数 / 右标尺 ---------- */
.bw-body {
    display: grid;
    grid-template-columns: minmax(0, 1.04fr) minmax(0, .96fr);
    gap: 18px;
    align-items: start;
    margin-top: 16px;
}

.bw-form .d3-panel-body { padding: 16px 18px 18px; }

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

.bw-fields [data-mode-field][hidden] { display: none; }

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

.bw-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;
}

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

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

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

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

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

/* ---------- 右侧三块 ---------- */
.bw-side {
    display: grid;
    gap: 12px;
}

.bw-block {
    background: var(--d3-paper);
    border: 1px solid var(--d3-line);
    border-radius: var(--d3-radius-sm);
    padding: 13px 14px 14px;
}

.bw-block-head {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: 8px;
}

.bw-block-head h3,
.bw-block-head h2 {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: -.01em;
    margin: 0;
}

.bw-block-head span {
    font-family: var(--d3-mono);
    font-size: 11.5px;
    color: var(--d3-ink-3);
}

#bwRuler {
    display: block;
    width: 100%;
    height: auto;
    margin-top: 6px;
}

/* ---------- 标尺图元 ---------- */
.bw-ruler-axis {
    stroke: var(--d3-line-2);
    stroke-width: 1;
}

.bw-ruler-seg {
    fill: rgba(var(--d3-accent-rgb), .1);
}

.bw-ruler-seg.is-on {
    fill: rgba(var(--d3-accent-rgb), .34);
}

.bw-ruler-tick {
    stroke: var(--d3-line-2);
    stroke-width: 1;
}

.bw-ruler-tick.is-major { stroke: var(--d3-ink-3); }

.bw-ruler-label {
    fill: var(--d3-ink-3);
    font-family: var(--d3-mono);
    font-size: 10.5px;
}

.bw-ruler-guide {
    stroke: var(--d3-accent);
    stroke-width: 1.4;
    stroke-dasharray: 3 3;
    fill: none;
}

.bw-ruler-mark {
    fill: var(--d3-accent);
}

.bw-ruler-text {
    fill: var(--d3-accent);
    font-family: var(--d3-mono);
    font-size: 13px;
    font-weight: 700;
}

/* ---------- 分摊条 ---------- */
.bw-split {
    display: flex;
    height: 12px;
    margin-top: 11px;
    border-radius: 6px;
    overflow: hidden;
    background: var(--d3-paper-2);
}

.bw-split-origin {
    display: block;
    height: 100%;
    background: var(--d3-accent);
    transition: width .2s ease;
}

.bw-split-cdn {
    display: block;
    height: 100%;
    background: rgba(var(--d3-accent-rgb), .22);
    transition: width .2s ease;
}

.bw-split-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 16px;
    margin-top: 9px;
    font-size: 11.5px;
    color: var(--d3-ink-3);
}

.bw-split-legend b {
    font-family: var(--d3-mono);
    font-weight: 700;
    color: var(--d3-ink-2);
}

.bw-dot {
    display: inline-block;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    margin-right: 5px;
    vertical-align: 1px;
}

.bw-dot.is-origin { background: var(--d3-accent); }
.bw-dot.is-cdn { background: rgba(var(--d3-accent-rgb), .28); }

/* ---------- 计费对比 ---------- */
.bw-cost {
    display: grid;
    gap: 9px;
    margin-top: 11px;
}

.bw-cost-row {
    display: grid;
    grid-template-columns: 62px minmax(0, 1fr) 92px;
    align-items: center;
    gap: 10px;
}

.bw-cost-name {
    font-size: 12px;
    color: var(--d3-ink-2);
}

.bw-cost-track {
    height: 8px;
    border-radius: 4px;
    background: var(--d3-paper-2);
    overflow: hidden;
}

.bw-cost-track i {
    display: block;
    height: 100%;
    border-radius: 4px;
    background: var(--d3-accent);
    transition: width .2s ease;
}

.bw-cost-track i.is-flow { background: rgba(var(--d3-accent-rgb), .45); }

.bw-cost-row b {
    font-family: var(--d3-mono);
    font-variant-numeric: tabular-nums;
    font-size: 12.5px;
    text-align: right;
    color: var(--d3-ink);
}

.bw-cost-badge {
    font-family: var(--d3-sans) !important;
    font-size: 11px !important;
    font-weight: 650;
    padding: 2px 8px;
    border-radius: 999px;
    border: 1px solid var(--d3-line-2);
    color: var(--d3-ink-3);
}

.bw-cost-badge.is-ok {
    border-color: rgba(var(--d3-accent-rgb), .45);
    background: rgba(var(--d3-accent-rgb), .1);
    color: var(--d3-accent);
}

.bw-cost-note {
    margin: 10px 0 0;
    font-size: 11px;
    line-height: 1.65;
    color: var(--d3-ink-3);
}

/* ---------- 选型结论 ---------- */
.bw-picks {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;
    margin-top: 16px;
    background: var(--d3-line);
    border: 1px solid var(--d3-line);
    border-radius: var(--d3-radius-sm);
    overflow: hidden;
}

.bw-pick {
    background: var(--d3-paper);
    padding: 12px 14px 13px;
    min-width: 0;
}

.bw-pick > span {
    display: block;
    font-size: 11.5px;
    color: var(--d3-ink-3);
}

.bw-pick b {
    display: block;
    margin-top: 4px;
    font-family: var(--d3-mono);
    font-size: 17px;
    font-weight: 700;
    color: var(--d3-ink);
    letter-spacing: -.01em;
}

.bw-pick em {
    display: block;
    margin-top: 3px;
    font-style: normal;
    font-size: 11px;
    line-height: 1.6;
    color: var(--d3-ink-3);
}

/* ---------- 档位表 ---------- */
.bw-tiers-wrap,
.bw-batch-wrap {
    margin-top: 18px;
    background: var(--d3-card);
    border: 1px solid var(--d3-line);
    border-radius: var(--d3-radius);
    padding: 15px 18px 17px;
}

.bw-tiers-head,
.bw-batch-head {
    padding-bottom: 11px;
    border-bottom: 1px solid var(--d3-line);
    margin-bottom: 12px;
}

.bw-tiers-head h2,
.bw-batch-head h2 { font-size: var(--d3-fs-h3); }

.bw-tier-table { min-width: 560px; }

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

.bw-tier-table tbody tr { cursor: pointer; }

.bw-tier-table tbody tr.is-cur td {
    background: rgba(var(--d3-accent-rgb), .1);
}

.bw-tier-table tbody tr.is-cur td:first-child { box-shadow: inset 2px 0 0 var(--d3-accent); }

.bw-tier-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), .13);
    vertical-align: 1px;
}

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

.bw-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;
}

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

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

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

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

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

.bw-batch-table { min-width: 520px; }
.bw-batch-table tbody tr.is-bad td { color: var(--d3-bad); }

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

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
    .bw-body { grid-template-columns: minmax(0, 1fr); }
    .bw-batch { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 820px) {
    .bw-kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .bw-picks { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 640px) {
    .bw-console { padding: 12px; }
    .bw-fields { grid-template-columns: minmax(0, 1fr); }
    .bw-kpi { padding: 10px 12px 11px; }
    .bw-kpi-value { font-size: 21px; }
    .bw-cost-row { grid-template-columns: 56px minmax(0, 1fr) 80px; }
    .bw-tiers-wrap, .bw-batch-wrap { padding: 13px 14px 15px; }
    .bw-mode { font-size: 11.5px; padding: 6px 8px; }
}

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