/* 临床计算外壳：新的配色、字体层级与页头页脚
   依赖 desk.css 的组件类，但覆盖其视觉令牌，形成独立的编辑部风格。 */

:root {
    --dk-bg: #f7f6f2;
    --dk-bg-grad: linear-gradient(180deg, #f2f1ea 0%, rgba(247, 246, 242, 0) 320px);
    --dk-surface: #ffffff;
    --dk-surface-2: #fbfaf6;
    --dk-surface-3: #f1efe7;
    --dk-ink: #121b17;
    --dk-ink-2: #33423b;
    --dk-muted: #6b7a73;
    --dk-line: #e4e1d6;
    --dk-line-strong: #cfccbe;
    --dk-accent-soft: #e8f2ee;
    --dk-accent-line: #bcdcd2;
    --dk-ok: #0f6b57;
    --dk-ok-soft: #e8f2ee;
    --dk-warn: #9a5b12;
    --dk-warn-soft: #fbf1e2;
    --dk-err: #a83232;
    --dk-err-soft: #fbebeb;
    --dk-r: 10px;
    --dk-r-sm: 7px;
    --dk-r-lg: 14px;
    --dk-shadow-1: 0 1px 2px rgba(18, 27, 23, .05);
    --dk-shadow-2: 0 18px 40px -28px rgba(18, 27, 23, .35);
    --dk-font: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    --cl-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", Georgia, serif;
    --cl-wrap: 1120px;
    --cl-top-h: 62px;
}

[data-theme="dark"] {
    --dk-bg: #0c1310;
    --dk-bg-grad: linear-gradient(180deg, #101b16 0%, rgba(12, 19, 16, 0) 340px);
    --dk-surface: #121b17;
    --dk-surface-2: #16211c;
    --dk-surface-3: #1b2822;
    --dk-ink: #eef2ee;
    --dk-ink-2: #c2cec8;
    --dk-muted: #8b9a93;
    --dk-line: #25332c;
    --dk-line-strong: #33443b;
    --dk-accent-soft: #142a23;
    --dk-accent-line: #2b5a4b;
    --dk-ok: #5fbfa4;
    --dk-ok-soft: #102420;
    --dk-warn: #d6a04f;
    --dk-warn-soft: #241c11;
    --dk-err: #e08383;
    --dk-err-soft: #261414;
    --dk-shadow-1: 0 1px 2px rgba(0, 0, 0, .4);
    --dk-shadow-2: 0 20px 44px -30px rgba(0, 0, 0, .8);
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--dk-font);
    font-size: 15.5px;
    line-height: 1.8;
    background: var(--dk-bg);
    background-image: var(--dk-bg-grad);
    background-repeat: no-repeat;
    color: var(--dk-ink);
    -webkit-font-smoothing: antialiased;
}

.cl-wrap { width: min(var(--cl-wrap), 100% - 44px); margin-inline: auto; }
.cl-noprint { }

.cl-skip {
    position: absolute; left: -9999px; top: 0; z-index: 100;
    background: var(--dk-ink); color: var(--dk-bg);
    padding: 10px 16px; border-radius: 0 0 8px 0;
}
.cl-skip:focus { left: 0; }

/* ---------- 页头 ---------- */
.cl-top {
    position: sticky; top: 0; z-index: 60;
    background: color-mix(in srgb, var(--dk-bg) 88%, transparent);
    backdrop-filter: saturate(1.4) blur(12px);
    border-bottom: 1px solid var(--dk-line);
}
.cl-top-in {
    height: var(--cl-top-h);
    display: flex; align-items: center; gap: 22px;
}
.cl-brand {
    display: inline-flex; align-items: center; gap: 10px;
    text-decoration: none; color: var(--dk-ink);
    flex: 0 0 auto;
}
.cl-mark {
    width: 28px; height: 28px; border-radius: 8px;
    display: grid; place-items: center;
    background: var(--dk-accent); color: #fff;
    font-family: var(--cl-serif); font-size: 16px; font-weight: 700;
    box-shadow: 0 2px 0 color-mix(in srgb, var(--dk-accent) 55%, #000);
}
.cl-brand-t {
    display: flex; flex-direction: column; line-height: 1.15;
    font-size: 15px; font-weight: 700; letter-spacing: .01em;
}
.cl-brand-t em {
    font-style: normal; font-size: 10.5px; font-weight: 500;
    color: var(--dk-muted); letter-spacing: .16em;
}
.cl-nav { display: flex; align-items: center; gap: 2px; margin-left: 6px; }
.cl-nav a {
    position: relative;
    padding: 7px 11px; border-radius: 7px;
    font-size: 13.5px; color: var(--dk-ink-2); text-decoration: none;
    transition: color .15s, background .15s;
}
.cl-nav a:hover { color: var(--dk-ink); background: var(--dk-surface-3); }
.cl-nav a[aria-current="page"] { color: var(--dk-accent); font-weight: 600; }
.cl-nav a[aria-current="page"]::after {
    content: ""; position: absolute; left: 11px; right: 11px; bottom: 1px;
    height: 2px; border-radius: 2px; background: var(--dk-accent);
}
.cl-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; }

.cl-theme {
    display: inline-flex; align-items: center; gap: 7px;
    height: 32px; padding: 0 12px;
    border: 1px solid var(--dk-line-strong); border-radius: 99px;
    background: var(--dk-surface); color: var(--dk-ink-2);
    font-size: 12.5px; cursor: pointer;
    transition: border-color .15s, color .15s, background .15s;
}
.cl-theme:hover { color: var(--dk-accent); border-color: var(--dk-accent-line); background: var(--dk-accent-soft); }
.cl-theme-ico { font-size: 13px; line-height: 1; }

.cl-burger {
    display: none; margin-left: auto;
    width: 36px; height: 32px; padding: 0;
    border: 1px solid var(--dk-line-strong); border-radius: 7px;
    background: var(--dk-surface); cursor: pointer;
    flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.cl-burger span { display: block; width: 15px; height: 1.5px; background: var(--dk-ink-2); border-radius: 2px; }

/* ---------- 页脚 ---------- */
.cl-foot {
    margin-top: 72px;
    background: #0f1a16;
    color: #c9d3cd;
    border-top: 1px solid #1d2c26;
}
.cl-foot-in {
    display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 32px;
    padding: 44px 0 30px;
}
.cl-foot-logo {
    margin: 0 0 10px;
    font-family: var(--cl-serif); font-size: 19px; font-weight: 700; color: #f2f5f2;
}
.cl-foot-logo span {
    margin-left: 8px; font-family: var(--dk-font); font-size: 11px;
    font-weight: 400; letter-spacing: .16em; color: #7f918a;
    vertical-align: 2px;
}
.cl-foot-desc { margin: 0; font-size: 12.5px; line-height: 1.85; color: #93a39c; max-width: 34ch; }
.cl-foot-col h3 {
    margin: 2px 0 12px; font-size: 11.5px; font-weight: 600;
    letter-spacing: .14em; color: #7f918a;
}
.cl-foot-col a {
    display: block; margin-bottom: 8px;
    font-size: 13px; color: #c9d3cd; text-decoration: none;
    transition: color .15s;
}
.cl-foot-col a:hover { color: #6fd0b2; }
.cl-foot-col p { margin: 0; font-size: 12.5px; line-height: 1.85; color: #93a39c; }
.cl-foot-bar {
    display: flex; justify-content: space-between; gap: 12px;
    padding: 16px 0 22px; border-top: 1px solid #1d2c26;
}
.cl-foot-bar p { margin: 0; font-size: 11.5px; color: #6f7f78; }

/* ---------- 内容排版覆盖 ---------- */
.dk-hero { padding: 40px 0 8px; }
.dk-hero-in { gap: 40px; }

.dk-crumb { font-size: 12px; color: var(--dk-muted); }
.dk-crumb a { color: var(--dk-muted); text-decoration: none; }
.dk-crumb a:hover { color: var(--dk-accent); }
.dk-crumb i { margin: 0 7px; font-style: normal; opacity: .5; }

.dk-eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    margin-bottom: 10px;
    font-size: 11.5px; font-weight: 600; letter-spacing: .14em;
    color: var(--dk-accent); text-transform: uppercase;
}
.dk-eyebrow::before {
    content: ""; width: 18px; height: 1px; background: var(--dk-accent); opacity: .65;
}

.dk-h1 {
    font-family: var(--cl-serif);
    font-size: clamp(28px, 3.4vw, 42px);
    line-height: 1.28; letter-spacing: -.015em; font-weight: 700;
    margin: 0 0 14px;
    text-wrap: balance;
}
.dk-h1-hl {
    color: var(--dk-accent);
    background: linear-gradient(180deg, transparent 68%, var(--dk-accent-soft) 68%);
    padding: 0 .06em;
}
.dk-sub { font-size: 15.5px; line-height: 1.9; color: var(--dk-ink-2); max-width: 46ch; }
.dk-sub strong { color: var(--dk-ink); font-weight: 600; }

.dk-points { margin: 18px 0 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.dk-points li { position: relative; padding-left: 16px; font-size: 13.5px; color: var(--dk-muted); line-height: 1.7; }
.dk-points li::before {
    content: ""; position: absolute; left: 0; top: .68em;
    width: 6px; height: 6px; border-radius: 50%; background: var(--dk-accent-line);
}
.dk-points b { color: var(--dk-ink-2); font-weight: 600; }

.dk-tool {
    border-radius: var(--dk-r-lg);
    border: 1px solid var(--dk-line);
    background: var(--dk-surface);
    box-shadow: var(--dk-shadow-2);
    overflow: hidden;
}
.dk-tool-head {
    padding: 14px 18px;
    border-bottom: 1px solid var(--dk-line);
    background: linear-gradient(180deg, var(--dk-surface-2), var(--dk-surface));
}
.dk-tool-head h2 {
    font-family: var(--cl-serif); font-size: 16.5px; font-weight: 700;
    margin: 0; letter-spacing: .01em;
}
.dk-tool-head span { font-size: 11.5px; color: var(--dk-muted); }

.dk-section { padding-top: 52px; }
.dk-section-head h2 {
    font-family: var(--cl-serif);
    font-size: clamp(21px, 2.3vw, 26px);
    letter-spacing: -.01em; margin: 0 0 10px;
}
.dk-section-head p { font-size: 14.5px; line-height: 1.85; color: var(--dk-muted); max-width: 72ch; }

.dk-card {
    padding: 20px 20px;
    border-radius: var(--dk-r);
    border: 1px solid var(--dk-line);
    background: var(--dk-surface);
    box-shadow: var(--dk-shadow-1);
}
.dk-card h3 { font-family: var(--cl-serif); font-size: 16.5px; }
.dk-card p { font-size: 13.8px; line-height: 1.85; color: var(--dk-ink-2); }
.dk-hint { font-size: 12.5px !important; color: var(--dk-muted) !important; line-height: 1.75 !important; }

.dk-table { font-size: 13.5px; }
.dk-table th {
    background: var(--dk-surface-3);
    font-weight: 600; font-size: 12.5px; letter-spacing: .02em;
    color: var(--dk-ink-2);
}
.dk-table td, .dk-table th { padding: 11px 14px; }
.dk-table tbody tr:nth-child(even) td { background: color-mix(in srgb, var(--dk-surface-2) 60%, transparent); }

.dk-btn { border-radius: 8px; font-weight: 600; letter-spacing: .01em; }
.dk-btn-primary { background: var(--dk-accent); border-color: var(--dk-accent); }

.dk-faq summary { font-size: 14.5px; font-weight: 600; }
.dk-faq .dk-faq-body p { font-size: 13.8px; line-height: 1.9; }

.dk-note { border-radius: var(--dk-r); font-size: 13px; }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
    .cl-foot-in { grid-template-columns: 1fr 1fr; gap: 26px; }
    .cl-nav {
        position: absolute; left: 0; right: 0; top: var(--cl-top-h);
        flex-direction: column; align-items: stretch; gap: 0;
        padding: 8px 22px 14px;
        background: var(--dk-surface);
        border-bottom: 1px solid var(--dk-line);
        box-shadow: var(--dk-shadow-2);
        display: none;
    }
    .cl-nav.is-open { display: flex; }
    .cl-nav a { padding: 11px 4px; border-radius: 0; border-bottom: 1px solid var(--dk-line); }
    .cl-nav a:last-child { border-bottom: 0; }
    .cl-nav a[aria-current="page"]::after { display: none; }
    .cl-burger { display: inline-flex; }
    .cl-actions { margin-left: 0; }
    .dk-hero { padding-top: 26px; }
    .dk-hero-in { gap: 28px; }
}

@media (max-width: 560px) {
    .cl-wrap { width: min(var(--cl-wrap), 100% - 32px); }
    .cl-brand-t em { display: none; }
    .cl-theme-txt { display: none; }
    .cl-theme { padding: 0 10px; }
    .cl-foot-in { grid-template-columns: 1fr; gap: 22px; }
    .cl-foot-bar { flex-direction: column; gap: 4px; }
}

@media print {
    .cl-top, .cl-foot, .cl-theme, .cl-burger { display: none !important; }
    body { background: #fff; }
}