/* ===== 泳池水量计算器 /tool/pool-volume-calc ===== */

.detail-wrap {
    --pv-blue: #0ea5e9;
    --pv-blue2: #2563eb;
    --pv-green: #10b981;
    --pv-grad: linear-gradient(135deg, #0ea5e9 0%, #2563eb 100%);
    --pv-grad-green: linear-gradient(135deg, #10b981 0%, #0ea5e9 100%);
}

/* 头部 */
.pv-head { display: flex; gap: 22px; align-items: center; margin-bottom: 30px; }
.pv-head-icon {
    width: 74px; height: 74px; border-radius: 20px; display: grid; place-items: center;
    font-size: 38px; background: var(--pv-grad); color: #fff;
    box-shadow: 0 14px 30px rgba(14, 165, 233, .32);
}
.pv-head-main h1 { margin: 0 0 8px; font-size: 32px; font-weight: 900; letter-spacing: -.02em; color: var(--c-text); }
.pv-head-sub { margin: 0 0 14px; font-size: 15px; line-height: 1.7; color: var(--c-sub); max-width: 64ch; }
.pv-head-badges { display: flex; flex-wrap: wrap; gap: 8px; }

/* 主体 */
.pv-board { margin-bottom: 40px; }
.pv-card { background: var(--c-card); border: 1px solid var(--c-border); border-radius: 18px; padding: 22px; }
.pv-card-title { font-size: 16px; font-weight: 800; color: var(--c-text); margin-bottom: 16px; }

.pv-form { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.pv-field { display: flex; flex-direction: column; gap: 6px; }
.pv-field-full { grid-column: 1 / -1; }
.pv-field label { font-size: 13px; font-weight: 700; color: var(--c-text); }
.pv-field input, .pv-field select {
    padding: 10px 12px; border-radius: 10px; border: 1px solid var(--c-border);
    background: var(--c-bg); color: var(--c-text); font-size: 14px; font-family: inherit;
}
.pv-field input:focus, .pv-field select:focus { outline: 2px solid var(--pv-blue); outline-offset: 1px; border-color: var(--pv-blue); }
.pv-field small { font-size: 11.5px; color: var(--c-muted); }

.pv-radio-row { display: flex; gap: 12px; flex-wrap: wrap; }
.pv-radio {
    display: flex; align-items: center; gap: 8px; padding: 10px 16px; border-radius: 999px;
    border: 1px solid var(--c-border); background: var(--c-bg); cursor: pointer; font-size: 14px;
    color: var(--c-text); font-weight: 600; transition: .15s;
}
.pv-radio input { accent-color: var(--pv-blue); width: 16px; height: 16px; margin: 0; }
.pv-radio:has(input:checked) { border-color: var(--pv-blue); background: rgba(14, 165, 233, .1); }

.pv-calc-btn {
    margin-top: 18px; width: 100%; padding: 13px; border: 0; border-radius: 12px; cursor: pointer;
    background: var(--pv-grad); color: #fff; font-size: 15px; font-weight: 800;
    box-shadow: 0 10px 24px rgba(14, 165, 233, .28); transition: .15s;
}
.pv-calc-btn:hover { transform: translateY(-1px); filter: brightness(1.04); }

/* 结果 */
.pv-result { margin-top: 18px; }
.pv-result-hero {
    background: var(--pv-grad); color: #fff; border-radius: 16px; padding: 24px;
    text-align: center; box-shadow: 0 14px 30px rgba(14, 165, 233, .25);
}
.pv-hero-label { font-size: 13px; opacity: .92; }
.pv-hero-num { font-size: 40px; font-weight: 900; margin: 6px 0 4px; letter-spacing: -.02em; }
.pv-hero-sub { font-size: 13.5px; opacity: .95; }

.pv-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 14px; }
.pv-metric { background: var(--c-bg); border: 1px solid var(--c-border); border-radius: 12px; padding: 14px; text-align: center; }
.pv-metric .k { font-size: 12px; color: var(--c-muted); }
.pv-metric .v { font-size: 18px; font-weight: 800; color: var(--c-text); margin-top: 4px; }

.pv-dose-title { font-size: 14.5px; font-weight: 800; color: var(--c-text); margin: 18px 0 10px; }
.pv-breakdown { display: flex; flex-direction: column; gap: 8px; }
.pv-bd-row {
    display: flex; justify-content: space-between; align-items: center; gap: 10px;
    font-size: 13.5px; color: var(--c-sub);
    background: var(--c-bg); border: 1px solid var(--c-border); border-radius: 10px; padding: 10px 14px;
}
.pv-bd-row b { color: var(--c-text); font-weight: 800; white-space: nowrap; }

.pv-verdict { margin-top: 14px; padding: 14px 16px; border-radius: 12px; font-size: 13.5px; line-height: 1.7; background: rgba(16, 185, 129, .1); color: var(--c-text); border: 1px solid rgba(16, 185, 129, .35); }
.pv-verdict b { font-weight: 800; }

.pv-tip {
    margin-top: 16px; font-size: 13px; line-height: 1.8; color: var(--c-sub);
    background: var(--c-bg); border: 1px solid var(--c-border); border-left: 4px solid var(--pv-blue);
    border-radius: 12px; padding: 14px 16px;
}
.pv-tip b { color: var(--c-text); }

/* tabs 内容 */
.pv-block-head { font-size: 19px; font-weight: 800; color: var(--c-text); margin: 0 0 16px; }
.pv-feature-chips { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 18px; margin-bottom: 26px; }
.pv-feature-chip { display: flex; align-items: center; gap: 8px; font-size: 13.5px; color: var(--c-sub); }
.pv-feature-chip .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--pv-blue); flex-shrink: 0; }
.pv-prose { font-size: 15px; line-height: 1.9; color: var(--c-sub); }
.pv-prose b { color: var(--c-text); }

.pv-steps { display: flex; flex-direction: column; gap: 12px; }
.pv-step { display: flex; gap: 14px; padding: 14px 16px; border-radius: 14px; background: var(--c-card); border: 1px solid var(--c-border); }
.pv-step-no { flex-shrink: 0; width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center; font-weight: 800; color: #fff; background: var(--pv-grad); font-size: 14px; }
.pv-step-body { font-size: 14px; color: var(--c-sub); line-height: 1.7; }
.pv-step-body b { color: var(--c-text); }

.pv-faq { display: flex; flex-direction: column; gap: 10px; }
.pv-faq details { border: 1px solid var(--c-border); border-radius: 14px; background: var(--c-card); padding: 0 16px; }
.pv-faq summary { cursor: pointer; padding: 14px 0; font-weight: 700; font-size: 14.5px; color: var(--c-text); list-style: none; }
.pv-faq summary::-webkit-details-marker { display: none; }
.pv-faq summary::after { content: "+"; float: right; color: var(--pv-blue); font-size: 20px; line-height: 1; }
.pv-faq details[open] summary::after { content: "−"; }
.pv-faq .pv-faq-a { padding: 0 0 16px; font-size: 13.5px; line-height: 1.8; color: var(--c-sub); }
.pv-faq .pv-faq-a b { color: var(--c-text); }

/* 相关 */
.pv-related { margin-top: 42px; }
.pv-related h2 { font-size: 22px; font-weight: 800; color: var(--c-text); margin: 0 0 16px; }
.pv-rel-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; }
.pv-rel-item { display: flex; align-items: center; gap: 14px; padding: 16px; border-radius: 16px; background: var(--c-card); border: 1px solid var(--c-border); text-decoration: none; transition: .18s; }
.pv-rel-item:hover { transform: translateY(-2px); border-color: var(--pv-blue); box-shadow: 0 10px 24px rgba(14, 165, 233, .12); }
.pv-rel-icon { width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; font-size: 24px; background: var(--c-bg); flex-shrink: 0; }
.pv-rel-body { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.pv-rel-body b { font-size: 14.5px; color: var(--c-text); }
.pv-rel-body small { font-size: 12px; color: var(--c-muted); }
.pv-rel-go { margin-left: auto; color: var(--pv-blue); font-size: 18px; font-weight: 800; }

@media (max-width: 640px) {
    .pv-head { flex-direction: column; align-items: flex-start; gap: 14px; }
    .pv-head-main h1 { font-size: 24px; }
    .pv-form { grid-template-columns: 1fr; }
    .pv-metrics { grid-template-columns: 1fr 1fr; }
    .pv-feature-chips { grid-template-columns: 1fr; }
}