/* KYDIM 步骤卡片流：白底、深绿、浅灰分隔线；码卡是 00 号卡，正文每章一张 01–09 号卡，宽屏右侧吸顶目录。 */
:root {
  --bg: #ffffff;
  --ink: #142019;
  --ink-2: #47534c;
  --ink-3: #6c7770;
  --line: #e3e8e4;
  --line-2: #cdd5cf;
  --soft: #f5f7f5;
  --green: #0e5a3c;
  --green-deep: #093f2a;
  --green-mid: #2f7a58;
  --green-tint: #e8f2eb;
  --green-line: #b8d3c2;
  --amber: #7a4d00;
  --amber-bg: #fff7e5;
  --amber-line: #efd8a3;
  --red: #8c1f1f;
  --red-bg: #fcf0ef;
  --red-line: #eec6c3;
  --radius: 16px;
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --num: "Bahnschrift", "DIN Alternate", "DIN Condensed", "Roboto Condensed", "Arial Narrow", var(--font);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-padding-top: 80px; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--font); font-size: 16px; line-height: 1.8; overflow-wrap: break-word; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--green); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--green-deep); }
:focus-visible { outline: 3px solid var(--green-mid); outline-offset: 2px; border-radius: 4px; }
h1, h2, h3 { line-height: 1.35; margin: 0; }
p { margin: 0 0 12px; }

.kdm-skip { position: absolute; left: -999px; top: 8px; background: var(--green); color: #fff; padding: 10px 14px; border-radius: 8px; z-index: 50; }
.kdm-skip:focus { left: 12px; }
.kdm-shell { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 16px; }
.kdm-narrow { max-width: 820px; }

/* ── 顶栏 ── */
.kdm-top { position: sticky; top: 0; z-index: 30; background: rgba(255, 255, 255, .95); border-bottom: 1px solid var(--line); backdrop-filter: saturate(1.4) blur(6px); }
.kdm-top-in { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 56px; }
.kdm-mark { display: inline-flex; align-items: center; gap: 8px; color: var(--ink); text-decoration: none; font-family: var(--num); font-weight: 700; font-size: 18px; letter-spacing: .14em; }
.kdm-mark:hover { color: var(--green); }
.kdm-logo { flex: none; display: block; }
.kdm-nav { display: flex; gap: 2px; }
.kdm-nav a { color: var(--ink-2); text-decoration: none; font-size: 14.5px; padding: 0 11px; min-height: 44px; display: inline-flex; align-items: center; border-radius: 10px; white-space: nowrap; }
.kdm-nav a:hover { background: var(--soft); color: var(--ink); }
.kdm-nav a[aria-current="page"] { color: var(--green); font-weight: 600; }
.kdm-nav a[aria-current="page"]::after { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--green); margin-left: 6px; }

/* ── 通用小件 ── */
.kdm-eyebrow { margin: 0 0 10px; color: var(--green); font-size: 13.5px; font-weight: 600; letter-spacing: .05em; display: flex; flex-wrap: wrap; align-items: center; gap: 4px 10px; }
.kdm-eyebrow::before { content: ""; width: 20px; height: 2px; background: var(--green); flex: none; }
.kdm-count, .kdm-checked { color: var(--ink-3); font-weight: 400; letter-spacing: 0; }
.kdm-lead { color: var(--ink-2); font-size: 16.5px; }
.kdm-byline { margin: 0; display: flex; flex-wrap: wrap; gap: 4px 16px; color: var(--ink-3); font-size: 13.5px; }
.kdm-byline a { color: inherit; }
.kdm-crumbs { list-style: none; display: flex; flex-wrap: wrap; gap: 4px; padding: 0; margin: 20px 0 14px; font-size: 13.5px; color: var(--ink-3); }
.kdm-crumbs li + li::before { content: "/"; margin-right: 4px; color: var(--line-2); }
.kdm-crumbs a { color: var(--ink-2); text-decoration: none; }
.kdm-crumbs a:hover { color: var(--green); }

/* ── 首屏：左文，右 00 号码卡 ── */
.kdm-hero { border-bottom: 1px solid var(--line); }
.kdm-hero-grid { display: grid; grid-template-columns: minmax(0, 1fr); padding-top: 18px; padding-bottom: 26px; }
.kdm-hero-text { display: contents; }
.kdm-hero .kdm-eyebrow { grid-row: 1; }
.kdm-hero h1 { grid-row: 2; font-size: 25px; font-weight: 800; letter-spacing: -.01em; margin-bottom: 16px; }
.kdm-hero-card { grid-row: 3; }
.kdm-hero .kdm-lead { grid-row: 4; margin: 18px 0 12px; }
.kdm-hero .kdm-byline { grid-row: 5; }

/* 码卡（首页 00 号卡 / 文章内横卡） */
.kdm-cc { background: #fff; border: 1px solid var(--line-2); border-radius: var(--radius); padding: 14px 16px 12px; position: relative; }
.kdm-cc::before { content: ""; position: absolute; left: -1px; right: -1px; top: -1px; height: 4px; border-radius: var(--radius) var(--radius) 0 0; background: var(--green); }
.kdm-cc p { margin: 0; }
.kdm-cc-lab { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--ink-3); letter-spacing: .06em; margin-top: 2px !important; }
.kdm-cc-no { font-family: var(--num); font-weight: 700; font-size: 15px; color: var(--green); letter-spacing: .04em; border: 1.5px solid var(--green); border-radius: 999px; padding: 0 8px; line-height: 1.5; }
.kdm-cc-row { display: flex; align-items: stretch; gap: 10px; margin-top: 8px; }
.kdm-cc-code { flex: 1; min-width: 0; display: flex; align-items: center; font-family: var(--num); font-size: 30px; font-weight: 700; letter-spacing: .14em; color: var(--green-deep); background: var(--green-tint); border-radius: 12px; padding: 2px 14px; line-height: 1.4; white-space: nowrap; overflow: hidden; }
.kdm-cc-done { min-height: 1.3em; font-size: 13px; color: var(--green); margin-top: 3px !important; }
.kdm-cc-gain { font-weight: 700; font-size: 15.5px; color: var(--ink); margin-bottom: 10px !important; }
.kdm-cc-gain sup { color: var(--green); font-size: 12px; }
.kdm-cc-note { font-size: 13px; color: var(--ink-2); margin-top: 10px !important; line-height: 1.65; }
.kdm-cc-fine { font-size: 12.5px; color: var(--ink-3); line-height: 1.65; margin-top: 4px !important; }
.kdm-cc.is-inline { margin: 22px 0; }

.kdm-btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; font: inherit; font-weight: 700; border-radius: 12px; cursor: pointer; text-decoration: none; line-height: 1.2; }
.kdm-btn-line { flex: none; background: #fff; color: var(--green); border: 1.5px solid var(--green); padding: 0 18px; font-size: 15px; min-height: 48px; }
.kdm-btn-line:hover { background: var(--green-tint); }
.kdm-btn-line.is-done { background: var(--green); color: #fff; }
.kdm-btn-go { width: 100%; background: var(--green); color: #fff; border: 0; padding: 0 18px; font-size: 16px; min-height: 50px; }
.kdm-btn-go::after { content: ""; width: 8px; height: 8px; border-top: 2px solid currentColor; border-right: 2px solid currentColor; transform: rotate(45deg); margin-left: 4px; }
.kdm-btn-go:hover { background: var(--green-deep); color: #fff; }

/* ── 六步流程线 ── */
.kdm-flow { padding: 24px 0 8px; }
.kdm-flow-h { margin: 0 0 14px; font-weight: 700; font-size: 15px; }
.kdm-flow-list { list-style: none; margin: 0; padding: 0; counter-reset: flow; position: relative; }
.kdm-flow-list li { counter-increment: flow; position: relative; padding: 0 0 16px 46px; }
.kdm-flow-list li::before { content: ""; position: absolute; left: 15px; top: 30px; bottom: 0; width: 2px; background: var(--line); }
.kdm-flow-list li:last-child::before { display: none; }
.kdm-flow-list a { display: block; color: var(--ink); text-decoration: none; }
.kdm-flow-list a::before { content: counter(flow); position: absolute; left: 0; top: 0; width: 32px; height: 32px; border-radius: 50%; background: #fff; border: 2px solid var(--green); color: var(--green); font-family: var(--num); font-weight: 700; font-size: 15px; display: grid; place-items: center; }
.kdm-flow-list a:hover::before { background: var(--green); color: #fff; }
.kdm-flow-list b { display: block; font-size: 15.5px; line-height: 32px; }
.kdm-flow-list span { display: block; font-size: 13.5px; color: var(--ink-2); line-height: 1.65; }

/* ── 正文：章卡 + 右侧目录 ── */
.kdm-body { display: grid; grid-template-columns: minmax(0, 1fr); gap: 32px; padding-top: 16px; padding-bottom: 56px; }
.kdm-chapters, .kdm-article-col { min-width: 0; }
.kdm-chapters { display: flex; flex-direction: column; gap: 18px; }
.kdm-toc { display: none; }
.kdm-toc-m { border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.kdm-toc-m summary { cursor: pointer; padding: 0 14px; min-height: 48px; display: flex; align-items: center; justify-content: space-between; gap: 8px; font-weight: 600; font-size: 15px; color: var(--green); list-style: none; }
.kdm-toc-m summary::-webkit-details-marker { display: none; }
.kdm-toc-m summary::after { content: "+"; font-family: var(--num); font-size: 22px; line-height: 1; }
.kdm-toc-m[open] summary::after { content: "−"; }
.kdm-toc-m ol { margin: 0; padding: 0 14px 12px 36px; font-size: 14.5px; line-height: 1.7; }
.kdm-toc-m li { margin: 4px 0; }

.kdm-card { position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 16px 20px; }
.kdm-num { display: block; font-family: var(--num); font-weight: 700; font-size: 30px; line-height: 1; color: var(--green); letter-spacing: .02em; margin-bottom: 10px; }
.kdm-card > h2 { font-size: 21px; font-weight: 800; padding-bottom: 14px; margin-bottom: 16px; border-bottom: 1px solid var(--line); }
.kdm-card h3, .kdm-prose h3 { font-size: 17.5px; font-weight: 700; margin: 28px 0 8px; display: flex; gap: 10px; align-items: baseline; }
.kdm-card h3::before, .kdm-prose h3::before { content: ""; flex: none; width: 8px; height: 8px; border-radius: 2px; background: var(--green); transform: translateY(-2px); }
.kdm-card ul, .kdm-card ol, .kdm-prose ul, .kdm-prose ol { margin: 0 0 14px; padding-left: 1.4em; }
.kdm-card li, .kdm-prose li { margin: 4px 0; }
.kdm-card > h2 + h3, .kdm-card > h2 + p + h3 { margin-top: 18px; }

/* 编号步骤 */
ol.kdm-steps { list-style: none; padding: 0; counter-reset: st; margin-left: 13px; border-left: 2px solid var(--line); }
ol.kdm-steps > li { counter-increment: st; position: relative; padding: 1px 0 10px 24px; margin: 0; }
ol.kdm-steps > li::before { content: counter(st); position: absolute; left: -14px; top: 2px; width: 26px; height: 26px; border-radius: 50%; background: var(--green); color: #fff; font-family: var(--num); font-weight: 700; font-size: 13px; display: grid; place-items: center; line-height: 1; }

/* 表格（窄屏三列以上变卡片） */
.kdm-table { margin: 8px 0 18px; border: 1px solid var(--line); border-radius: 12px; overflow-x: auto; }
.kdm-table table { width: 100%; border-collapse: collapse; font-size: 14.5px; line-height: 1.6; }
.kdm-table th { background: var(--soft); text-align: left; font-weight: 700; padding: 10px 12px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.kdm-table td { padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.kdm-table tr:last-child td { border-bottom: 0; }
@media (max-width: 640px) {
  .kdm-table.is-wide { border: 0; overflow: visible; }
  .kdm-table.is-wide table, .kdm-table.is-wide tbody, .kdm-table.is-wide tr, .kdm-table.is-wide td { display: block; width: 100%; }
  .kdm-table.is-wide thead { display: none; }
  .kdm-table.is-wide tr { border: 1px solid var(--line); border-radius: 12px; margin-bottom: 10px; padding: 8px 0; }
  .kdm-table.is-wide td { border: 0; padding: 3px 14px; }
  .kdm-table.is-wide td::before { content: attr(data-th); display: block; font-size: 12px; color: var(--ink-3); }
  .kdm-table.is-wide td:first-child { font-weight: 700; color: var(--green-deep); }
}

/* 手机屏（本站自绘） */
.kdm-phone { margin: 12px 0 20px; display: flex; flex-direction: column; align-items: center; }
.kdm-phone-frame { width: 236px; max-width: 100%; border: 9px solid #1c2922; border-radius: 30px; background: #fff; overflow: hidden; }
.kdm-phone-bar { height: 18px; display: flex; justify-content: center; align-items: center; background: #1c2922; }
.kdm-phone-bar i { width: 54px; height: 6px; border-radius: 6px; background: #3a4a41; }
.kdm-phone-screen { padding: 14px 14px 16px; display: flex; flex-direction: column; gap: 7px; font-size: 11.5px; line-height: 1.4; }
.kdm-phone .r { display: flex; align-items: center; gap: 6px; }
.kdm-phone .r-title { font-size: 15px; font-weight: 800; margin-bottom: 4px; }
.kdm-phone .r-label { font-size: 10.5px; color: var(--ink-3); margin-bottom: -4px; }
.kdm-phone .r-input span { flex: 1; border: 1px solid var(--line-2); border-radius: 7px; padding: 7px 8px; color: #8a948f; }
.kdm-phone .r-check, .kdm-phone .r-text { color: var(--ink-2); font-size: 10.5px; }
.kdm-phone .box { flex: none; width: 12px; height: 12px; border-radius: 3px; background: var(--green); position: relative; }
.kdm-phone .r-ok { color: #1c7a4a; font-weight: 700; margin-top: -2px; }
.kdm-phone .tick { flex: none; width: 14px; height: 14px; border-radius: 50%; background: #1c7a4a; position: relative; }
.kdm-phone .tick::after { content: ""; position: absolute; left: 4.5px; top: 2px; width: 3px; height: 6.5px; border: solid #fff; border-width: 0 1.5px 1.5px 0; transform: rotate(45deg); }
.kdm-phone .r-btn span { flex: 1; text-align: center; background: var(--green); color: #fff; font-weight: 700; border-radius: 7px; padding: 8px; }
.kdm-phone .r-ghost span { flex: 1; text-align: center; border: 1px solid var(--line-2); border-radius: 7px; padding: 6px; color: var(--ink); }
.kdm-phone .r-or, .kdm-phone .r-foot { justify-content: center; color: var(--ink-3); font-size: 10.5px; }
.kdm-phone figcaption { max-width: 420px; margin-top: 10px; font-size: 13px; color: var(--ink-3); text-align: center; line-height: 1.6; }

/* 截图 / 本站画的图 / 并排 */
.kdm-shot, .kdm-fig { margin: 14px 0 20px; }
.kdm-shot-frame { display: block; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: var(--soft); }
.kdm-shot.is-phone { display: flex; flex-direction: column; align-items: center; }
.kdm-shot.is-phone .kdm-shot-frame { width: 260px; max-width: 100%; border: 8px solid #1c2922; border-radius: 28px; }
.kdm-fig img { border-radius: 12px; border: 1px solid var(--line); }
.kdm-shot figcaption, .kdm-fig figcaption { margin-top: 8px; font-size: 13px; color: var(--ink-3); line-height: 1.6; }
.kdm-shot.is-phone figcaption { text-align: center; max-width: 340px; }
.kdm-pair { display: grid; grid-template-columns: minmax(0, 1fr); gap: 4px; margin: 6px 0 12px; }
.kdm-pair > figure { margin: 8px 0; }

/* 提示块四种 */
.kdm-note { border-radius: 12px; padding: 12px 16px; margin: 10px 0 18px; background: var(--soft); border: 1px solid var(--line); }
.kdm-note p:last-child { margin-bottom: 0; }
.kdm-note-h { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 14.5px; margin-bottom: 4px !important; }
.kdm-note-h i { flex: none; width: 18px; height: 18px; border-radius: 50%; display: grid; place-items: center; font-style: normal; font-family: var(--num); font-size: 12px; font-weight: 700; color: #fff; background: var(--ink-3); }
.kdm-note-h i::before { content: "i"; }
.kdm-note.is-ok { background: var(--green-tint); border-color: var(--green-line); }
.kdm-note.is-ok .kdm-note-h { color: var(--green-deep); }
.kdm-note.is-ok .kdm-note-h i { background: var(--green); }
.kdm-note.is-ok .kdm-note-h i::before { content: "✓"; }
.kdm-note.is-warn { background: var(--amber-bg); border-color: var(--amber-line); }
.kdm-note.is-warn .kdm-note-h { color: var(--amber); }
.kdm-note.is-warn .kdm-note-h i { background: #b07a12; }
.kdm-note.is-warn .kdm-note-h i::before { content: "!"; }
.kdm-note.is-stop { background: var(--red-bg); border-color: var(--red-line); }
.kdm-note.is-stop .kdm-note-h { color: var(--red); }
.kdm-note.is-stop .kdm-note-h i { background: var(--red); }
.kdm-note.is-stop .kdm-note-h i::before { content: "×"; }

/* 屏幕状态分流 */
.kdm-state { margin: 12px 0 18px; border: 1px solid var(--line); border-left: 4px solid var(--green); border-radius: 12px; padding: 12px 16px 6px; }
.kdm-state-lab { font-size: 12.5px; color: var(--ink-3); letter-spacing: .06em; margin-bottom: 4px !important; }
.kdm-state-say { font-weight: 700; font-size: 15.5px; background: var(--soft); border-radius: 8px; padding: 6px 10px; margin-bottom: 10px !important; display: inline-block; }
.kdm-state-say::before { content: "「"; color: var(--ink-3); }
.kdm-state-say::after { content: "」"; color: var(--ink-3); }

/* 依据 */
.kdm-basis { margin: 24px 0 0; padding: 14px 16px; border-radius: 12px; background: var(--soft); border: 1px dashed var(--line-2); font-size: 14px; color: var(--ink-2); line-height: 1.75; }
.kdm-basis p { margin: 0 0 6px; }
.kdm-basis p:last-child { margin-bottom: 0; }
.kdm-basis-h { font-weight: 700; color: var(--ink); }

/* 问答 */
.kdm-faq details, .kdm-faq-plain details { border-bottom: 1px solid var(--line); }
.kdm-faq details:first-of-type, .kdm-faq-plain details:first-of-type { border-top: 1px solid var(--line); }
.kdm-faq summary, .kdm-faq-plain summary { cursor: pointer; list-style: none; padding: 13px 36px 13px 0; min-height: 48px; position: relative; font-weight: 700; font-size: 16px; line-height: 1.55; }
.kdm-faq summary::-webkit-details-marker, .kdm-faq-plain summary::-webkit-details-marker { display: none; }
.kdm-faq summary::after, .kdm-faq-plain summary::after { content: "+"; position: absolute; right: 4px; top: 10px; font-family: var(--num); font-size: 22px; color: var(--green); }
.kdm-faq details[open] summary::after, .kdm-faq-plain details[open] summary::after { content: "−"; }
.kdm-faq details p, .kdm-faq-plain details p { margin: 0 0 14px; color: var(--ink-2); }
.kdm-faq-plain { margin-top: 30px; }

/* 首页「单篇文章」区（有文章才出现） */
.kdm-latest { border-top: 2px solid var(--ink); padding-top: 14px; margin-top: 10px; }
.kdm-latest-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-bottom: 4px; }
.kdm-latest-h { margin: 0; font-weight: 800; font-size: 18px; }
.kdm-latest-head a { font-size: 14px; white-space: nowrap; min-height: 44px; display: inline-flex; align-items: center; }
.kdm-latest-list { list-style: none; margin: 0; padding: 0; }
.kdm-latest-list li { border-bottom: 1px solid var(--line); }
.kdm-latest-list a { display: grid; gap: 2px; padding: 12px 0; color: var(--ink); text-decoration: none; }
.kdm-latest-list b { font-size: 16px; }
.kdm-latest-list a:hover b { color: var(--green); }
.kdm-latest-list span { color: var(--ink-2); font-size: 14px; }
.kdm-latest-list time { color: var(--ink-3); font-size: 12.5px; }

.kdm-sign { border-top: 1px solid var(--line); padding-top: 16px; font-size: 14px; color: var(--ink-2); }
.kdm-sign p { margin: 0 0 6px; }
.kdm-sign b { color: var(--ink); }

/* ── 文章页 ── */
.kdm-article-h { padding-bottom: 20px; margin-bottom: 18px; border-bottom: 1px solid var(--line); }
.kdm-article-h h1 { font-size: 26px; font-weight: 800; letter-spacing: -.01em; margin-bottom: 10px; }
.kdm-article-h .kdm-lead { margin-bottom: 10px; }
.kdm-cover { margin: 0 0 22px; }
.kdm-cover img { border-radius: 14px; }
.kdm-cover figcaption { font-size: 13px; color: var(--ink-3); margin-top: 6px; }
.kdm-article-col > .kdm-toc-m { margin-bottom: 18px; }
.kdm-prose { counter-reset: sec; }
.kdm-prose > h2 { counter-increment: sec; font-size: 21px; font-weight: 800; margin: 38px 0 12px; padding-top: 16px; border-top: 1px solid var(--line); display: flex; gap: 12px; align-items: baseline; }
.kdm-prose > h2::before { content: counter(sec, decimal-leading-zero); font-family: var(--num); font-weight: 700; font-size: 18px; color: var(--green); flex: none; }
.kdm-prose > h2:first-child { margin-top: 6px; }
.kdm-faq-plain > h2 { counter-increment: sec; font-size: 21px; font-weight: 800; margin: 0 0 10px; padding-top: 16px; border-top: 1px solid var(--line); display: flex; gap: 12px; align-items: baseline; }
.kdm-faq-plain > h2::before { content: counter(sec, decimal-leading-zero); font-family: var(--num); font-weight: 700; font-size: 18px; color: var(--green); flex: none; }
.kdm-chips { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 26px 0 18px; font-size: 14px; }
.kdm-chips .lab { color: var(--ink-3); margin-right: 2px; }
.kdm-chips a, .kdm-chips span:not(.lab) { padding: 0 12px; min-height: 36px; display: inline-flex; align-items: center; border-radius: 999px; border: 1px solid var(--line); text-decoration: none; }
.kdm-chips a { color: var(--green); border-color: var(--green-line); background: var(--green-tint); }
.kdm-chips span:not(.lab) { color: var(--ink-3); }
.kdm-related { border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px 6px; margin: 0 0 22px; }
.kdm-related-h { font-weight: 800; margin-bottom: 4px !important; }
.kdm-related ul { list-style: none; margin: 0; padding: 0; }
.kdm-related li + li { border-top: 1px solid var(--line); }
.kdm-related a { display: grid; gap: 2px; padding: 10px 0; text-decoration: none; color: var(--ink); }
.kdm-related a:hover b { color: var(--green); }
.kdm-related span { color: var(--ink-2); font-size: 14px; }
.kdm-prevnext { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 16px 0 0; }
.kdm-prevnext a { border: 1px solid var(--line); border-radius: 12px; padding: 10px 14px; text-decoration: none; color: var(--ink); font-size: 14.5px; min-height: 48px; }
.kdm-prevnext a:hover { border-color: var(--green-line); }
.kdm-prevnext a.nx { text-align: right; }
.kdm-prevnext small { display: block; color: var(--ink-3); }

/* ── 列表页、专题页、站务页、404 ── */
.kdm-page-h { padding: 4px 0 22px; border-bottom: 1px solid var(--line); margin-bottom: 8px; }
.kdm-page-h h1 { font-size: 27px; font-weight: 800; letter-spacing: -.01em; }
.kdm-intro { color: var(--ink-2); margin-top: 12px; }
.kdm-intro p:last-child { margin-bottom: 0; }
.kdm-list { list-style: none; padding: 0; margin: 0 0 24px; }
.kdm-list li { border-bottom: 1px solid var(--line); }
.kdm-list a { display: grid; grid-template-columns: minmax(0, 1fr); gap: 2px; padding: 16px 0; text-decoration: none; color: var(--ink); }
.kdm-list .no { font-style: normal; font-family: var(--num); font-weight: 700; color: var(--green); font-size: 15px; }
.kdm-list b { font-size: 17px; }
.kdm-list a:hover b { color: var(--green); }
.kdm-list span { color: var(--ink-2); font-size: 14.5px; }
.kdm-list time { color: var(--ink-3); font-size: 13px; }
.kdm-empty { color: var(--ink-2); margin-top: 18px; }
.kdm-pages { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; margin: 6px 0 48px; font-size: 14.5px; }
.kdm-pages .prev, .kdm-pages .next { min-height: 44px; display: inline-flex; align-items: center; padding: 0 16px; border: 1px solid var(--line-2); border-radius: 12px; text-decoration: none; }
.kdm-pages .is-off { color: var(--line-2); border-color: var(--line); }
.kdm-pages .nums { display: flex; gap: 4px; }
.kdm-pages .nums a, .kdm-pages .nums span { min-width: 44px; min-height: 44px; display: inline-flex; align-items: center; justify-content: center; border-radius: 12px; font-family: var(--num); font-weight: 700; text-decoration: none; }
.kdm-pages .nums a { color: var(--ink-2); }
.kdm-pages .nums a:hover { background: var(--soft); }
.kdm-pages .nums span { background: var(--green); color: #fff; }
.kdm-prose { padding-bottom: 8px; }
.kdm-plain { padding-top: 14px; padding-bottom: 48px; }
.kdm-plain h2 { font-size: 20px; font-weight: 800; margin: 30px 0 10px; }
.kdm-plain > h2:first-child { margin-top: 4px; }
.kdm-404-h { border-bottom: 0; padding-top: 40px; }
.kdm-404-no { font-family: var(--num); font-weight: 700; font-size: 88px; line-height: 1; color: var(--green); margin-bottom: 14px !important; letter-spacing: .02em; }
.kdm-404-h .kdm-lead { margin-top: 12px; }
.kdm-404-links { list-style: none; padding: 0; margin: 6px 0 60px; border-top: 1px solid var(--line); }
.kdm-404-links li { border-bottom: 1px solid var(--line); }
.kdm-404-links a { display: flex; align-items: center; min-height: 52px; text-decoration: none; font-weight: 600; }
.kdm-404-links a::after { content: ""; margin-left: auto; width: 8px; height: 8px; border-top: 2px solid currentColor; border-right: 2px solid currentColor; transform: rotate(45deg); margin-right: 6px; }

/* ── 页脚 ── */
.kdm-foot { background: var(--soft); border-top: 1px solid var(--line); padding: 32px 0 22px; font-size: 14px; color: var(--ink-2); }
.kdm-foot-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 22px; }
.kdm-foot-about p { margin: 10px 0 0; line-height: 1.75; }
.kdm-foot h2 { font-size: 13px; letter-spacing: .08em; color: var(--ink-3); margin: 0 0 4px; font-weight: 600; }
.kdm-foot ul { list-style: none; padding: 0; margin: 0; }
.kdm-foot ul a { color: var(--ink); text-decoration: none; min-height: 40px; display: inline-flex; align-items: center; }
.kdm-foot ul a:hover { color: var(--green); text-decoration: underline; }
.kdm-foot-base { margin-top: 22px; padding-top: 14px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 16px; font-size: 13px; color: var(--ink-3); }
.kdm-foot-base a { color: var(--ink-2); }

/* ── 窄屏：顶栏收成一行（logo 就是回首页，「注册教程」那条先不显示） ── */
@media (max-width: 479px) {
  .kdm-mark { font-size: 16px; gap: 7px; letter-spacing: .1em; }
  .kdm-top .kdm-logo { width: 24px; height: 24px; }
  .kdm-nav a { padding: 0 7px; font-size: 13.5px; }
  .kdm-nav a:first-child { display: none; }
  .kdm-nav:has(.is-sec) .is-about { display: none; }
  .kdm-nav a[aria-current="page"]::after { display: none; }
}
@media (min-width: 400px) { .kdm-hero h1 { font-size: 27px; } }

/* ── 平板 ── */
@media (min-width: 640px) {
  .kdm-shell { padding: 0 28px; }
  .kdm-hero h1 { font-size: 34px; }
  .kdm-hero-card { max-width: 540px; }
  .kdm-cc { padding: 18px 22px 16px; }
  .kdm-card { padding: 28px 30px 26px; }
  .kdm-card > h2 { font-size: 23px; }
  .kdm-article-h h1 { font-size: 32px; }
  .kdm-page-h h1 { font-size: 32px; }
  .kdm-pair { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
  .kdm-list a { grid-template-columns: 54px minmax(0, 1fr); column-gap: 8px; }
  .kdm-list .no { grid-row: span 3; font-size: 22px; line-height: 1.2; }
  .kdm-list-terms a { grid-template-columns: minmax(0, 1fr); }
  .kdm-foot-grid { grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr); gap: 36px; }
  .kdm-cc.is-inline { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); column-gap: 24px; }
  .kdm-cc.is-inline .kdm-cc-lab { grid-column: 1 / -1; }
  .kdm-flow-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 28px; }
  .kdm-flow-list li { padding-bottom: 18px; }
  .kdm-flow-list li::before { display: none; }
}

/* ── 桌面：首屏左右两栏，流程线横排，正文右侧吸顶目录 ── */
@media (min-width: 960px) {
  .kdm-hero-grid { grid-template-columns: minmax(0, 1.15fr) minmax(340px, .85fr); grid-template-rows: auto auto auto 1fr; column-gap: 64px; padding-top: 56px; padding-bottom: 56px; }
  .kdm-hero-text { display: block; grid-column: 1; grid-row: 1 / span 4; align-self: center; }
  .kdm-hero h1 { font-size: 44px; line-height: 1.24; margin-bottom: 0; max-width: 13em; }
  .kdm-hero .kdm-lead { font-size: 17.5px; margin: 22px 0 18px; max-width: 32em; }
  .kdm-hero-card { grid-column: 2; grid-row: 1 / span 4; align-self: center; max-width: none; }
  .kdm-cc { padding: 22px 24px 18px; }
  .kdm-cc-code { font-size: 34px; }
  .kdm-flow { padding: 34px 0 14px; }
  .kdm-flow-list { grid-template-columns: repeat(6, minmax(0, 1fr)); column-gap: 18px; }
  .kdm-flow-list li { padding: 46px 0 0; }
  .kdm-flow-list li::before { left: 34px; right: -18px; top: 15px; bottom: auto; width: auto; height: 2px; display: block !important; }
  .kdm-flow-list li:last-child::before { display: none !important; }
  .kdm-flow-list b { line-height: 1.5; margin-bottom: 4px; }
}
@media (min-width: 1024px) {
  .kdm-body { grid-template-columns: minmax(0, 1fr) 252px; gap: 44px; padding-top: 30px; }
  .kdm-toc-m { display: none; }
  .kdm-toc { display: block; position: sticky; top: 80px; align-self: start; max-height: calc(100vh - 100px); overflow-y: auto; border-left: 1px solid var(--line); padding-left: 16px; }
  .kdm-toc-h { margin: 0 0 6px; font-size: 13px; letter-spacing: .08em; color: var(--ink-3); font-weight: 600; }
  .kdm-toc ol { list-style: none; margin: 0; padding: 0; }
  .kdm-toc a { display: grid; grid-template-columns: 26px minmax(0, 1fr); gap: 4px; padding: 6px 8px; margin-left: -8px; border-radius: 8px; color: var(--ink-2); text-decoration: none; font-size: 13.5px; line-height: 1.5; }
  .kdm-toc a i { font-style: normal; font-family: var(--num); color: var(--ink-3); font-weight: 700; }
  .kdm-toc a:hover { background: var(--soft); color: var(--ink); }
  .kdm-toc a.is-on { background: var(--green-tint); color: var(--green-deep); font-weight: 600; }
  .kdm-toc a.is-on i { color: var(--green); }
  .kdm-card { padding: 34px 40px 30px 112px; }
  .kdm-num { position: absolute; left: 34px; top: 34px; font-size: 40px; margin: 0; }
  .kdm-card > h2 { font-size: 24px; }
  .kdm-body-article { padding-top: 0; }
  .kdm-body-article .kdm-toc { top: 80px; margin-top: 72px; }
  .kdm-article-h h1 { font-size: 36px; }
}