/* ============================================================
 * NAT 类型在线检测页（nat.php）样式 —— 专业报告版
 * 复用 pages.css 的 --np-* 设计变量，保持全站视觉一致
 * ============================================================ */

/* ---------- 通用 ---------- */
.nat-mono { font-family: 'JetBrains Mono', 'SF Mono', Menlo, Consolas, 'Courier New', monospace; }
.nat-note { margin: 8px 0 0; color: var(--np-text-muted); font-size: 13px; line-height: 1.7; }
.nat-subtitle {
    margin: 24px 0 10px;
    font-size: 15px;
    font-weight: 650;
    color: var(--np-text);
}
.nat-empty {
    padding: 28px 16px;
    text-align: center;
    color: var(--np-text-muted);
    font-size: 13px;
    background: var(--np-subtle);
    border: 1px dashed var(--np-border);
    border-radius: var(--np-radius);
}

/* ---------- Hero ---------- */
.nat-hero {
    display: flex;
    align-items: center;
    gap: 24px;
    background: linear-gradient(135deg, var(--np-primary-soft), var(--np-card));
    border-color: var(--np-border);
}
.nat-hero-text { flex: 1; min-width: 0; }
.nat-hero-title { margin: 0 0 8px; font-size: 22px; font-weight: 720; letter-spacing: -0.01em; }
.nat-hero-desc { margin: 0 0 16px; color: var(--np-text-secondary); font-size: 14px; line-height: 1.7; }
.nat-hero-desc strong { color: var(--np-text); }
.nat-hero-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.nat-hero-art { flex: 0 0 220px; max-width: 220px; }

/* ---------- 状态药丸 ---------- */
.nat-pill {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    font-size: 12px;
    font-weight: 600;
    border-radius: 999px;
    background: var(--np-subtle);
    color: var(--np-text-secondary);
    border: 1px solid var(--np-border);
}
.nat-pill.is-running { background: rgba(245, 166, 35, .12); color: #b7791f; border-color: rgba(245, 166, 35, .35); }
.nat-pill.is-done { background: rgba(16, 163, 74, .12); color: #0f7a3d; border-color: rgba(16, 163, 74, .3); }
.nat-pill.is-error { background: rgba(220, 38, 38, .1); color: #c53030; border-color: rgba(220, 38, 38, .3); }
.nat-pill-muted { opacity: .85; }

/* ---------- 结果总览 ---------- */
.nat-verdict {
    display: grid;
    grid-template-columns: minmax(0, 1.75fr) minmax(0, 1fr);
    gap: 18px;
    padding: 18px;
    border: 1px solid var(--np-border);
    border-radius: var(--np-radius);
    background: var(--np-subtle);
}
.nat-verdict-main { min-width: 0; }
.nat-result-type {
    display: inline-block;
    padding: 5px 14px;
    border-radius: 999px;
    font-size: 17px;
    font-weight: 700;
    letter-spacing: -0.01em;
    background: var(--np-card);
    border: 1px solid var(--np-border);
    color: var(--np-text-secondary);
}
.nat-result-wait { color: var(--np-text-secondary); }
.nat-result-open { background: rgba(16, 163, 74, .12); border-color: rgba(16, 163, 74, .35); color: #0f7a3d; }
.nat-result-cone { background: rgba(59, 130, 246, .12); border-color: rgba(59, 130, 246, .35); color: #1d4ed8; }
.nat-result-symmetric { background: rgba(220, 38, 38, .1); border-color: rgba(220, 38, 38, .32); color: #c53030; }
.nat-result-blocked,
.nat-result-unknown { background: rgba(107, 114, 128, .12); border-color: rgba(107, 114, 128, .32); color: #4b5563; }
.nat-result-sub { margin-top: 12px; font-size: 13.5px; line-height: 1.75; color: var(--np-text-secondary); }
.nat-verdict-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }

.nat-verdict-side {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 12px 14px;
    background: var(--np-card);
    border: 1px solid var(--np-border);
    border-radius: var(--np-radius);
}
.nat-kv-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; font-size: 13px; }
.nat-kv-label { color: var(--np-text-muted); }
.nat-kv-value { font-weight: 650; color: var(--np-text); }

/* ---------- 判定依据 chips ---------- */
.nat-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.nat-chip {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    font-size: 12px;
    font-weight: 500;
    border-radius: 6px;
    background: var(--np-subtle);
    border: 1px solid var(--np-border);
    color: var(--np-text-secondary);
}
.nat-chip-ok { background: rgba(16, 163, 74, .1); border-color: rgba(16, 163, 74, .3); color: #0f7a3d; }
.nat-chip-warn { background: rgba(245, 166, 35, .12); border-color: rgba(245, 166, 35, .34); color: #b7791f; }
.nat-chip-danger { background: rgba(220, 38, 38, .1); border-color: rgba(220, 38, 38, .3); color: #c53030; }
.nat-chip-info { background: rgba(59, 130, 246, .1); border-color: rgba(59, 130, 246, .3); color: #1d4ed8; }
.nat-chip-muted { color: var(--np-text-muted); }

/* ---------- 统计格 ---------- */
.nat-stats { margin-top: 4px; }
.nat-cross { margin-top: 4px; }
.nat-clue { font-size: 13px !important; font-weight: 500 !important; line-height: 1.6; }
.nat-clue-ok { color: #0f7a3d; }
.nat-clue-warn { color: #b7791f; }
.nat-clue-unknown { color: var(--np-text-muted); }

/* ---------- 表格 ---------- */
.nat-table-wrap {
    margin-top: 12px;
    overflow-x: auto;
    border: 1px solid var(--np-border);
    border-radius: var(--np-radius);
    background: var(--np-card);
}
.nat-table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 620px; }
.nat-table th {
    text-align: left;
    padding: 10px 12px;
    font-size: 12px;
    font-weight: 600;
    color: var(--np-text-muted);
    background: var(--np-subtle);
    border-bottom: 1px solid var(--np-border);
    white-space: nowrap;
}
.nat-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--np-border-subtle, var(--np-border));
    color: var(--np-text-secondary);
    vertical-align: top;
    line-height: 1.6;
}
.nat-table tr:last-child td { border-bottom: none; }
.nat-table td.is-ok { color: #0f7a3d; font-weight: 600; }
.nat-table td.is-danger { color: #c53030; font-weight: 600; }
.nat-table td.is-muted { color: var(--np-text-muted); }
.nat-table td.is-info { color: #1d4ed8; font-weight: 600; }
.nat-table code {
    padding: 1px 5px;
    font-size: 12px;
    border-radius: 4px;
    background: var(--np-subtle);
    font-family: 'JetBrains Mono', Menlo, Consolas, monospace;
}

.nat-note-block { margin-top: 12px; }
.nat-note-line {
    margin: 0 0 6px;
    font-size: 12.5px;
    line-height: 1.7;
    color: var(--np-text-muted);
}

/* ---------- 原始探测数据 ---------- */
.nat-raw { display: flex; flex-direction: column; gap: 10px; margin-top: 12px; }
.nat-raw-round {
    border: 1px solid var(--np-border);
    border-radius: var(--np-radius);
    background: var(--np-card);
    overflow: hidden;
}
.nat-raw-round > summary {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
    padding: 11px 14px;
    cursor: pointer;
    font-size: 13px;
    background: var(--np-subtle);
    list-style: none;
}
.nat-raw-round > summary::-webkit-details-marker { display: none; }
.nat-raw-round > summary::before {
    content: '▸';
    color: var(--np-text-muted);
    font-size: 11px;
    transition: transform .15s;
}
.nat-raw-round[open] > summary::before { transform: rotate(90deg); }
.nat-raw-title { font-weight: 650; color: var(--np-text); }
.nat-kv { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--np-text-muted); }
.nat-kv b { font-weight: 500; }
.nat-kv code {
    font-family: 'JetBrains Mono', Menlo, Consolas, monospace;
    font-size: 12px;
    color: var(--np-text);
    background: var(--np-card);
    padding: 1px 6px;
    border-radius: 4px;
    border: 1px solid var(--np-border);
}
.nat-raw-body { padding: 10px 14px 14px; display: flex; flex-direction: column; gap: 6px; }
.nat-raw-row {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    padding: 7px 10px;
    font-size: 12.5px;
    border-radius: 6px;
    background: var(--np-subtle);
}
.nat-raw-row.nat-raw-none { color: var(--np-text-muted); justify-content: center; }
.nat-raw-local { background: rgba(59, 130, 246, .06); color: var(--np-text-secondary); }
.nat-raw-target { min-width: 150px; color: var(--np-text-secondary); word-break: break-all; }
.nat-raw-arrow { color: var(--np-text-muted); }
.nat-raw-mapped { font-weight: 650; color: var(--np-text); }
.nat-raw-rel { font-size: 11.5px; color: var(--np-text-muted); }
.nat-tag {
    display: inline-flex;
    align-items: center;
    padding: 1px 7px;
    font-size: 11px;
    font-weight: 600;
    border-radius: 4px;
    background: var(--np-subtle);
    border: 1px solid var(--np-border);
    color: var(--np-text-secondary);
}
.nat-tag-srflx { background: rgba(245, 166, 35, .14); border-color: rgba(245, 166, 35, .35); color: #b7791f; }
.nat-tag-host { background: rgba(59, 130, 246, .12); border-color: rgba(59, 130, 246, .32); color: #1d4ed8; }
.nat-tag-udp { background: rgba(16, 163, 74, .1); border-color: rgba(16, 163, 74, .28); color: #0f7a3d; }
.nat-tag-tcp { background: rgba(139, 92, 246, .12); border-color: rgba(139, 92, 246, .32); color: #6d28d9; }

/* ---------- NAT 类型卡 ---------- */
.nat-types { margin-top: 4px; }
.nat-type {
    position: relative;
    padding: 16px;
    border: 1px solid var(--np-border);
    border-radius: var(--np-radius);
    background: var(--np-card);
    transition: border-color .15s, box-shadow .15s;
}
.nat-type-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 10px; }
.nat-type-tag {
    display: inline-flex;
    padding: 2px 8px;
    font-size: 11px;
    font-weight: 700;
    border-radius: 4px;
    background: var(--np-subtle);
    border: 1px solid var(--np-border);
    color: var(--np-text-secondary);
}
.nat-type-rating { font-size: 11px; color: var(--np-text-muted); }
.nat-type-name { font-size: 15px; font-weight: 650; margin-bottom: 8px; color: var(--np-text); }
.nat-type-desc { font-size: 13px; line-height: 1.7; color: var(--np-text-secondary); }
.nat-type-meta { margin-top: 8px; font-size: 12px; line-height: 1.65; color: var(--np-text-muted); }
.nat-type-meta b { color: var(--np-text-secondary); font-weight: 600; }

.nat-type.is-detected {
    border-color: #dc2626;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, .1);
}
.nat-type.is-family {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, .1);
}
.nat-type-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 2px 8px;
    font-size: 11px;
    font-weight: 700;
    border-radius: 999px;
    background: var(--np-text);
    color: var(--np-card);
}
.nat-type.is-detected .nat-type-badge { background: #dc2626; color: #fff; }
.nat-type.is-family .nat-type-badge { background: #3b82f6; color: #fff; }

/* ---------- 未测项 ---------- */
.nat-unknowns { margin-top: 4px; }
.nat-unknown {
    padding: 16px;
    border: 1px dashed var(--np-border);
    border-radius: var(--np-radius);
    background: var(--np-subtle);
}
.nat-unknown-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 10px; }
.nat-unknown-title { font-size: 14px; font-weight: 650; color: var(--np-text); }
.nat-badge {
    display: inline-flex;
    padding: 2px 9px;
    font-size: 11px;
    font-weight: 700;
    border-radius: 999px;
    white-space: nowrap;
}
.nat-badge-unknown { background: rgba(107, 114, 128, .14); border: 1px solid rgba(107, 114, 128, .3); color: #4b5563; }
.nat-unknown-desc { margin: 0 0 8px; font-size: 12.5px; line-height: 1.75; color: var(--np-text-secondary); }
.nat-unknown-desc:last-child { margin-bottom: 0; }

/* ---------- 连接体验评估 ---------- */
.nat-scenarios { margin-top: 4px; }
.nat-scenario {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px;
    border: 1px solid var(--np-border);
    border-radius: var(--np-radius);
    background: var(--np-card);
}
.nat-scenario-icon { font-size: 20px; line-height: 1; }
.nat-scenario-name { flex: 1; font-size: 13.5px; font-weight: 600; color: var(--np-text); }
.nat-scenario-status {
    padding: 3px 10px;
    font-size: 12px;
    font-weight: 600;
    border-radius: 999px;
    background: var(--np-subtle);
    border: 1px solid var(--np-border);
    color: var(--np-text-secondary);
    white-space: nowrap;
}
.s-excellent { background: rgba(16, 163, 74, .12); border-color: rgba(16, 163, 74, .32); color: #0f7a3d; }
.s-good { background: rgba(59, 130, 246, .12); border-color: rgba(59, 130, 246, .32); color: #1d4ed8; }
.s-fair { background: rgba(245, 166, 35, .14); border-color: rgba(245, 166, 35, .34); color: #b7791f; }
.s-poor { background: rgba(220, 38, 38, .1); border-color: rgba(220, 38, 38, .3); color: #c53030; }
.s-unknown { background: rgba(107, 114, 128, .12); border-color: rgba(107, 114, 128, .3); color: #4b5563; }

/* ---------- 边界情况 ---------- */
.nat-limits { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: 4px; }
.nat-limit {
    padding: 14px 16px;
    border: 1px solid var(--np-border);
    border-left: 3px solid rgba(245, 166, 35, .7);
    border-radius: var(--np-radius);
    background: var(--np-card);
}
.nat-limit-title { font-size: 13.5px; font-weight: 650; margin-bottom: 6px; color: var(--np-text); }
.nat-limit p { margin: 0; font-size: 12.5px; line-height: 1.75; color: var(--np-text-secondary); }
.nat-limit strong { color: var(--np-text); }

/* ---------- FAQ ---------- */
.nat-faq { display: flex; flex-direction: column; gap: 10px; }
.nat-faq-item {
    border: 1px solid var(--np-border);
    border-radius: var(--np-radius);
    background: var(--np-card);
    overflow: hidden;
}
.nat-faq-item > summary {
    padding: 12px 16px;
    cursor: pointer;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--np-text);
    list-style: none;
}
.nat-faq-item > summary::-webkit-details-marker { display: none; }
.nat-faq-item > summary::before { content: '＋ '; color: var(--np-text-muted); }
.nat-faq-item[open] > summary::before { content: '－ '; }
.nat-faq-item p {
    margin: 0;
    padding: 0 16px 14px;
    font-size: 13px;
    line-height: 1.8;
    color: var(--np-text-secondary);
}
.nat-faq-item b { color: var(--np-text); }

/* ---------- 尾部说明 ---------- */
.nat-disclaimer {
    margin: 18px 0 0;
    padding: 14px 16px;
    font-size: 12.5px;
    line-height: 1.75;
    color: var(--np-text-muted);
    background: var(--np-subtle);
    border: 1px solid var(--np-border);
    border-radius: var(--np-radius);
}
.nat-disclaimer b { color: var(--np-text-secondary); }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
    .nat-verdict { grid-template-columns: 1fr; }
    .nat-limits { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
    .nat-hero { flex-direction: column; align-items: flex-start; }
    .nat-hero-art { flex: 0 0 160px; max-width: 160px; }
    .nat-result-type { font-size: 15px; }
    .nat-raw-target { min-width: 0; width: 100%; }
    .nat-scenario { flex-wrap: wrap; }
}
@media (max-width: 560px) {
    .nat-limits { grid-template-columns: 1fr; }
    .nat-verdict { padding: 14px; }
    .nat-raw-row { gap: 6px; }
}