/* ======================================================================
 *  儿童安全座椅选购 /child-car-seat.css
 *  风格：柔和母婴青绿风（teal + 圆润卡片），区别于二手车琥珀仪表盘与通用蓝。
 *  复用站点全局变量，自动支持 [data-theme="dark"] 黑夜模式。
 * ====================================================================== */

.cs-wrap {
    --cs-accent: #14b8a6;
    --cs-accent-2: #0ea5e9;
    --cs-accent-soft: rgba(20, 184, 166, 0.12);
    --cs-warn: #ef4444;
    --cs-warn-soft: rgba(239, 68, 68, 0.12);
    --cs-ok: #16a34a;
    --cs-surface: var(--c-surface);
    --cs-surface-soft: var(--c-surface-soft);
    --cs-text: var(--c-text);
    --cs-text-sub: var(--c-text-sub);
    --cs-text-muted: var(--c-text-muted);
    --cs-line: var(--c-border);
    --cs-shadow: var(--shadow-sm);
    font-family: var(--font-sans, system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif);
}
[data-theme="dark"] .cs-wrap {
    --cs-accent: #2dd4bf;
    --cs-accent-2: #38bdf8;
    --cs-accent-soft: rgba(45, 212, 191, 0.14);
    --cs-warn: #ff6b6b;
    --cs-ok: #4ede78;
}

.cs-container { max-width: 1080px; margin: 0 auto; padding: 0 16px; }

/* Hero */
.cs-hero {
    margin: 18px 0 22px;
    padding: 24px 28px;
    border-radius: 22px;
    background: linear-gradient(120deg, rgba(20,184,166,0.13), rgba(14,165,233,0.07));
    border: 1px solid var(--cs-line);
    position: relative; overflow: hidden;
}
.cs-hero::after { content: "🚼"; position: absolute; right: 16px; top: 6px; font-size: 90px; opacity: .13; }
.cs-hero h1 { margin: 0 0 6px; font-size: 25px; font-weight: 800; color: var(--cs-text); }
.cs-hero p { margin: 0; font-size: 14px; line-height: 1.7; color: var(--cs-text-sub); max-width: 760px; }
.cs-hero .cs-tags { margin-top: 12px; display: flex; flex-wrap: wrap; gap: 8px; }
.cs-tag {
    font-size: 12px; font-weight: 700; padding: 4px 11px; border-radius: 99px;
    background: var(--cs-accent-soft); color: var(--cs-accent); border: 1px solid rgba(20,184,166,0.3);
}

/* 布局 */
.cs-grid { display: grid; grid-template-columns: 350px minmax(0,1fr); gap: 20px; align-items: start; }
@media (max-width: 880px) { .cs-grid { grid-template-columns: 1fr; } }

/* 左：孩子档案 */
.cs-profile {
    background: var(--cs-surface);
    border: 1px solid var(--cs-line);
    border-radius: 20px; padding: 20px; box-shadow: var(--cs-shadow);
}
.cs-profile h2 { margin: 0 0 4px; font-size: 16px; font-weight: 800; color: var(--cs-text); display: flex; align-items: center; gap: 8px; }
.cs-profile .cs-sub { margin: 0 0 16px; font-size: 12px; color: var(--cs-text-muted); }
.cs-avatar {
    width: 64px; height: 64px; border-radius: 50%; margin: 0 auto 14px;
    background: var(--cs-accent-soft); display: grid; place-items: center; font-size: 34px;
    border: 1px solid rgba(20,184,166,0.3); transition: font-size .3s ease;
}
.cs-field { margin-bottom: 15px; }
.cs-field > label { display: block; font-size: 13px; font-weight: 700; margin-bottom: 7px; color: var(--cs-text-sub); }
.cs-field .cs-val { float: right; font-weight: 800; color: var(--cs-accent); font-variant-numeric: tabular-nums; }
.cs-input {
    width: 100%; padding: 10px 12px; font-size: 15px; border-radius: 12px;
    border: 1px solid var(--cs-line); background: var(--cs-surface-soft); color: var(--cs-text);
    font-variant-numeric: tabular-nums;
}
.cs-input:focus { outline: none; border-color: var(--cs-accent); box-shadow: 0 0 0 3px var(--cs-accent-soft); }
.cs-range { width: 100%; margin-top: 9px; accent-color: var(--cs-accent); cursor: pointer; }
.cs-hint { margin: 7px 0 0; font-size: 11.5px; line-height: 1.5; color: var(--cs-text-muted); }
.cs-btns { display: flex; gap: 10px; margin-top: 4px; }
.cs-btn { flex: 1; padding: 12px; font-size: 14px; font-weight: 800; border-radius: 13px; border: 1px solid transparent; cursor: pointer; transition: transform .1s ease, filter .15s; }
.cs-btn:active { transform: translateY(1px); }
.cs-btn-primary { background: linear-gradient(135deg, var(--cs-accent), var(--cs-accent-2)); color: #042f2e; }
.cs-btn-primary:hover { filter: brightness(1.05); }
.cs-btn-ghost { background: var(--cs-surface-soft); border-color: var(--cs-line); color: var(--cs-text-sub); }
.cs-btn-ghost:hover { border-color: var(--cs-accent); }

/* 右：结果 */
.cs-result { display: flex; flex-direction: column; gap: 18px; }
.cs-card { background: var(--cs-surface); border: 1px solid var(--cs-line); border-radius: 20px; padding: 20px; box-shadow: var(--cs-shadow); }
.cs-card h3 { margin: 0 0 14px; font-size: 15px; font-weight: 800; color: var(--cs-text); display: flex; align-items: center; gap: 8px; }
.cs-empty { text-align: center; padding: 56px 20px; color: var(--cs-text-muted); }
.cs-empty .cs-emoji { font-size: 54px; opacity: .6; }
.cs-empty p { margin: 12px 0 0; font-size: 14px; }

/* 主匹配卡 */
.cs-match { display: flex; gap: 18px; flex-wrap: wrap; align-items: center; }
.cs-badge-big {
    flex: none; text-align: center; padding: 14px 18px; border-radius: 16px;
    background: var(--cs-accent-soft); border: 1px solid rgba(20,184,166,0.35); min-width: 130px;
}
.cs-badge-big .cs-big-num { font-size: 30px; font-weight: 900; color: var(--cs-accent); line-height: 1.1; }
.cs-badge-big .cs-big-lab { font-size: 12px; color: var(--cs-text-sub); margin-top: 4px; font-weight: 600; }
.cs-match-info { flex: 1; min-width: 220px; }
.cs-match-info .cs-row { display: flex; gap: 10px; padding: 8px 0; border-bottom: 1px dashed var(--cs-line); font-size: 13.5px; }
.cs-match-info .cs-row:last-child { border-bottom: none; }
.cs-match-info .cs-row .k { color: var(--cs-text-muted); width: 96px; flex: none; }
.cs-match-info .cs-row .v { color: var(--cs-text); font-weight: 700; }
.cs-dir {
    display: inline-flex; align-items: center; gap: 8px; margin-top: 4px;
    font-size: 13px; font-weight: 800; color: var(--cs-accent);
    background: var(--cs-accent-soft); padding: 5px 12px; border-radius: 99px;
}
.cs-dir.rev { color: #1e40af; background: rgba(59,130,246,0.12); }
[data-theme="dark"] .cs-dir.rev { color: #93c5fd; }

/* 身高标尺 */
.cs-scale { margin-top: 6px; }
.cs-scale-track {
    position: relative; height: 46px; border-radius: 12px; overflow: hidden;
    display: flex; border: 1px solid var(--cs-line);
}
.cs-scale-track .cs-band { display: flex; flex-direction: column; justify-content: center; align-items: center; color: #fff; font-size: 11px; font-weight: 700; }
.cs-band.b1 { background: #14b8a6; }
.cs-band.b2 { background: #0ea5e9; }
.cs-band.b3 { background: #8b5cf6; }
.cs-band.b4 { background: #94a3b8; }
.cs-scale-marker {
    position: absolute; top: -6px; width: 3px; height: 58px; background: var(--cs-warn);
    box-shadow: 0 0 0 3px var(--cs-warn-soft); border-radius: 2px; transition: left .35s ease;
}
.cs-scale-marker::before {
    content: "👶"; position: absolute; top: -22px; left: 50%; transform: translateX(-50%); font-size: 16px;
}
.cs-scale-axis { display: flex; justify-content: space-between; font-size: 10.5px; color: var(--cs-text-muted); margin-top: 6px; }
.cs-scale-cap { font-size: 11.5px; color: var(--cs-text-muted); margin-top: 8px; }

/* 选购要点 */
.cs-points { display: flex; flex-direction: column; gap: 10px; }
.cs-point { display: flex; gap: 11px; align-items: flex-start; padding: 12px 14px; border-radius: 14px; background: var(--cs-surface-soft); border: 1px solid var(--cs-line); }
.cs-point .cs-ic { font-size: 20px; flex: none; }
.cs-point .cs-pt-body b { display: block; font-size: 13.5px; color: var(--cs-text); margin-bottom: 3px; }
.cs-point .cs-pt-body span { font-size: 12.5px; line-height: 1.65; color: var(--cs-text-sub); }

/* 警示 */
.cs-alert {
    display: flex; gap: 10px; padding: 13px 15px; border-radius: 14px; margin-bottom: 10px;
    font-size: 13px; line-height: 1.7;
}
.cs-alert.warn { background: var(--cs-warn-soft); border: 1px solid var(--cs-warn); color: #b91c1c; }
[data-theme="dark"] .cs-alert.warn { color: #ff9a9a; }
.cs-alert.info { background: var(--cs-accent-soft); border: 1px solid rgba(20,184,166,0.35); color: var(--cs-text-sub); }
.cs-alert .cs-al-ic { font-size: 18px; flex: none; }

/* 信息区 */
.cs-info { margin-top: 26px; }
.cs-info .cs-desc { font-size: 14px; line-height: 1.8; color: var(--cs-text-sub); }
.cs-info .cs-meta { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px,1fr)); gap: 10px; margin-top: 14px; }
.cs-info .cs-meta .item { background: var(--cs-surface-soft); border: 1px solid var(--cs-line); border-radius: 12px; padding: 10px 12px; }
.cs-info .cs-meta .item .k { font-size: 11.5px; color: var(--cs-text-muted); }
.cs-info .cs-meta .item .v { font-size: 13px; font-weight: 700; color: var(--cs-text); margin-top: 3px; }

.cs-tabs { display: flex; flex-wrap: wrap; gap: 6px; margin: 24px 0 14px; border-bottom: 1px solid var(--cs-line); }
.cs-tabs button { padding: 9px 14px; font-size: 13.5px; font-weight: 700; border: none; background: none; color: var(--cs-text-muted); cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.cs-tabs button.active { color: var(--cs-accent); border-bottom-color: var(--cs-accent); }
.cs-panel { display: none; }
.cs-panel.active { display: block; }
.cs-panel h4 { font-size: 15px; color: var(--cs-text); margin: 6px 0 12px; }
.cs-panel p, .cs-panel li { font-size: 13.5px; line-height: 1.8; color: var(--cs-text-sub); }
.cs-panel ol { padding-left: 20px; }
.cs-faq details { border: 1px solid var(--cs-line); border-radius: 12px; padding: 12px 14px; margin-bottom: 10px; background: var(--cs-surface-soft); }
.cs-faq summary { font-weight: 700; cursor: pointer; color: var(--cs-text); font-size: 13.5px; }
.cs-faq .cs-a { margin-top: 9px; font-size: 13px; line-height: 1.75; color: var(--cs-text-sub); }
.cs-changelog li { list-style: none; margin-bottom: 10px; font-size: 13px; color: var(--cs-text-sub); }
.cs-changelog .ver { font-weight: 800; color: var(--cs-accent); margin-right: 8px; }
.cs-changelog .date { color: var(--cs-text-muted); margin-right: 8px; font-size: 12px; }

.cs-related { margin-top: 26px; }
.cs-related h3 { font-size: 16px; color: var(--cs-text); margin: 0 0 12px; }
.cs-rel-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px,1fr)); gap: 12px; }
.cs-rel-item { display: flex; align-items: center; gap: 12px; padding: 13px 15px; border: 1px solid var(--cs-line); border-radius: 14px; background: var(--cs-surface); text-decoration: none; color: var(--cs-text); transition: border-color .15s, transform .1s; }
.cs-rel-item:hover { border-color: var(--cs-accent); transform: translateY(-2px); }
.cs-rel-item .cs-rel-ic { font-size: 22px; }
.cs-rel-item b { font-size: 13.5px; display: block; }
.cs-rel-item small { font-size: 11.5px; color: var(--cs-text-muted); }
.cs-rel-item .cs-rel-go { margin-left: auto; color: var(--cs-accent); font-weight: 800; }

.cs-disclaim { margin-top: 22px; font-size: 12px; line-height: 1.7; color: var(--cs-text-muted); background: var(--cs-surface-soft); border: 1px dashed var(--cs-line); border-radius: 12px; padding: 12px 14px; }
.cs-back-top { position: fixed; right: 18px; bottom: 22px; width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--cs-line); background: var(--cs-accent); color: #042f2e; font-size: 18px; font-weight: 800; cursor: pointer; display: none; z-index: 50; }
@media (max-width: 620px) { .cs-hero { padding: 20px; } .cs-hero h1 { font-size: 21px; } }