/* ============================================================
   JDK 学习手册 — API 全库
   包树 / 类页 / 方法分类 / 双模式 / 悬浮卡片 / 跨版本标记
   ============================================================ */

/* ---------- 布局 ---------- */
body.api-mode .layout {
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  max-width: 1680px;
}
html[data-sidebar="collapsed"] body.api-mode .layout {
  grid-template-columns: 58px minmax(0, 1fr);
}
body.api-mode .main { max-width: 1180px; }
body.api-mode .footer { margin-top: 30px; }

@media (max-width: 1180px) {
  body.api-mode .layout { grid-template-columns: var(--sidebar-w) minmax(0, 1fr); }
}

/* ---------- 侧栏包树 ---------- */
.api-quicklinks a { justify-content: flex-start; }
.api-tree-filter { padding: 2px 0 8px; }
.api-tree-filter input {
  width: 100%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 8px;
  padding: 7px 10px;
  font-size: 12.5px;
  font-family: var(--font-sans);
  outline: none;
}
.api-tree-filter input:focus { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-soft); }
.api-sidebar-tree { display: flex; flex-direction: column; gap: 1px; padding-bottom: 8px; }
.api-pkg { border-radius: 8px; }
.api-pkg > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 5px 8px;
  border-radius: 7px;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.3;
}
.api-pkg > summary::-webkit-details-marker { display: none; }
.api-pkg > summary::before {
  content: "›";
  flex-shrink: 0;
  width: 10px;
  color: var(--faint);
  transition: transform .15s ease;
}
.api-pkg[open] > summary::before { transform: rotate(90deg); }
.api-pkg > summary:hover { background: var(--surface-2); color: var(--text); }
.api-pkg.active > summary { color: var(--accent-text); background: var(--accent-soft); font-weight: 600; }
.api-pkg-name { font-family: var(--font-mono); font-size: 11.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.api-pkg-count { margin-left: auto; font-size: 10.5px; color: var(--faint); flex-shrink: 0; }
.api-class-list { display: flex; flex-direction: column; padding: 1px 0 4px; }
.api-class-link {
  padding: 3px 8px 3px 25px;
  border-radius: 6px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.5;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.api-class-link:hover { color: var(--text); background: var(--surface-2); text-decoration: none; }
.api-class-link.active { color: var(--accent-text); background: var(--accent-soft); font-weight: 600; }
.api-class-link .api-class-kind { color: var(--faint); font-family: var(--font-sans); font-size: 10px; margin-left: 4px; }

/* ---------- 通用 ---------- */
.api-app { min-height: 40vh; }
.api-boot { padding: 48px 0; }
.api-boot-kicker { font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--accent-text); font-weight: 700; }
.api-boot h1 { margin: 8px 0 10px; }
.api-crumbs { font-size: 12.5px; color: var(--muted); margin-bottom: 16px; display: flex; flex-wrap: wrap; gap: 4px 2px; align-items: center; }
.api-crumbs a { color: var(--muted); }
.api-crumbs a:hover { color: var(--accent-text); text-decoration: none; }
.api-crumbs .sep { color: var(--faint); margin: 0 6px; }
.api-crumbs .current { color: var(--text); font-weight: 600; }

.api-kicker { font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--accent-text); font-weight: 700; }
.api-section-title { display: flex; align-items: baseline; gap: 10px; margin: 30px 0 12px; }
.api-section-title h2 { margin: 0; font-size: 19px; }
.api-section-title .cnt { font-size: 11px; color: var(--faint); font-family: var(--font-mono); }
.api-section-title .more { margin-left: auto; font-size: 12.5px; color: var(--accent-text); }

.api-btn {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text-soft);
  border-radius: 8px; padding: 6px 11px; font-size: 12.5px; cursor: pointer;
  font-family: var(--font-sans);
}
.api-btn:hover { border-color: var(--border-strong); color: var(--text); text-decoration: none; }
.api-btn.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.api-btn.primary:hover { background: var(--accent-hover); }

/* ---------- 首页 ---------- */
.api-hero {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 18px;
  background:
    radial-gradient(900px 300px at 12% -10%, var(--accent-soft), transparent 60%),
    linear-gradient(160deg, var(--surface), var(--surface-2));
  padding: 30px 32px 24px;
  overflow: hidden;
}
.api-hero h1 { margin: 6px 0 10px; font-size: clamp(26px, 3.4vw, 40px); letter-spacing: -.02em; }
.api-hero h1 .thin { color: var(--muted); font-weight: 500; }
.api-hero .lead { color: var(--text-soft); max-width: 76ch; margin: 0 0 16px; font-size: 15.5px; }
.api-hero-actions { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0 4px; align-items: center; }
.api-stat-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 2px; }
.api-stat {
  display: inline-flex; align-items: baseline; gap: 6px;
  border: 1px solid var(--border); background: var(--surface);
  border-radius: 999px; padding: 5px 12px; font-size: 12px; color: var(--muted);
}
.api-stat b { font-family: var(--font-mono); font-size: 14px; color: var(--text); }

.api-mode-toggle {
  display: inline-flex; align-items: center; border: 1px solid var(--border-strong);
  background: var(--surface); border-radius: 10px; padding: 2px; gap: 2px;
}
.api-mode-toggle button {
  border: 0; background: transparent; color: var(--muted);
  border-radius: 8px; padding: 5px 11px; font-size: 12.5px; cursor: pointer;
  font-family: var(--font-sans); font-weight: 600;
}
.api-mode-toggle button:hover { color: var(--text); }
.api-mode-toggle button.active { background: var(--accent); color: var(--on-accent); }
.api-mode-toggle .mt-hint { font-size: 10.5px; color: var(--faint); padding: 0 8px 0 4px; }

.api-lang-toggle {
  display: inline-flex; align-items: center; gap: 2px;
  border: 1px solid var(--border); background: var(--surface);
  border-radius: 10px; padding: 2px;
}
.api-lang-toggle .lt-label { font-size: 10px; color: var(--faint); padding: 0 5px 0 7px; }
.api-lang-toggle button {
  border: 0; background: transparent; color: var(--muted);
  border-radius: 7px; padding: 4px 8px; font-size: 11.5px; cursor: pointer;
  font-family: var(--font-sans); font-weight: 600;
}
.api-lang-toggle button:hover { color: var(--text); }
.api-lang-toggle button.active { background: var(--accent-soft); color: var(--accent-text); }

.api-home-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 10px; }
.api-scene-card {
  border: 1px solid var(--border); background: var(--surface); border-radius: 13px;
  padding: 14px 15px; display: flex; flex-direction: column; gap: 6px;
  transition: border-color .15s ease, transform .15s ease;
}
.api-scene-card:hover { border-color: var(--border-strong); transform: translateY(-1px); text-decoration: none; }
.api-scene-card .asc-top { display: flex; align-items: center; gap: 7px; }
.api-scene-card .asc-icon { font-size: 15px; }
.api-scene-card h3 { margin: 0; font-size: 14.5px; }
.api-scene-card p { margin: 0; font-size: 12.5px; color: var(--muted); line-height: 1.55; }
.api-scene-card .asc-meta { font-family: var(--font-mono); font-size: 10.5px; color: var(--faint); margin-top: auto; }

.api-pkg-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 8px; }
.api-pkg-card {
  border: 1px solid var(--border); background: var(--surface); border-radius: 11px;
  padding: 11px 13px; display: flex; flex-direction: column; gap: 3px;
}
.api-pkg-card:hover { border-color: var(--border-strong); text-decoration: none; }
.api-pkg-card b { font-family: var(--font-mono); font-size: 12.5px; color: var(--text); }
.api-pkg-card small { color: var(--muted); font-size: 11.5px; line-height: 1.5; }
.api-pkg-card .apc-count { color: var(--faint); font-size: 10.5px; font-family: var(--font-mono); }
.api-module-group { margin-bottom: 18px; }
.api-module-head { font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--faint); margin: 0 0 7px; font-family: var(--font-mono); }

/* ---------- 包 / 场景页 ---------- */
.api-page-head { border-bottom: 1px solid var(--border); padding-bottom: 18px; margin-bottom: 18px; }
.api-page-head h1 { margin: 6px 0 6px; font-size: clamp(23px, 2.8vw, 32px); font-family: var(--font-mono); word-break: break-all; }
.api-page-head .lead { color: var(--muted); margin: 4px 0 0; max-width: 76ch; }
.api-class-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 9px; }
.api-class-card {
  border: 1px solid var(--border); background: var(--surface); border-radius: 12px;
  padding: 12px 14px; display: flex; flex-direction: column; gap: 4px;
}
.api-class-card:hover { border-color: var(--border-strong); text-decoration: none; }
.api-class-card .acc-top { display: flex; align-items: center; gap: 7px; }
.api-class-card .acc-kind { font-size: 10px; color: var(--faint); border: 1px solid var(--border); border-radius: 4px; padding: 0 4px; flex-shrink: 0; }
.api-class-card b { font-family: var(--font-mono); font-size: 13px; color: var(--text); overflow-wrap: anywhere; }
.api-class-card p { margin: 1px 0 0; font-size: 12.5px; color: var(--muted); line-height: 1.5; }
.api-class-card .acc-meta { font-size: 10.5px; color: var(--faint); font-family: var(--font-mono); margin-top: 2px; }
.api-class-card.missing { opacity: .55; }
.api-filterbar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 0 0 14px; }
.api-filterbar input {
  flex: 1 1 220px; min-width: 160px; border: 1px solid var(--border); background: var(--surface);
  color: var(--text); border-radius: 9px; padding: 8px 11px; font-size: 13px; outline: none;
  font-family: var(--font-sans);
}
.api-filterbar input:focus { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-soft); }
.api-filterbar .count { font-size: 11.5px; color: var(--faint); font-family: var(--font-mono); }

/* ---------- 类页 ---------- */
.api-class-head { border-bottom: 1px solid var(--border); padding-bottom: 16px; margin-bottom: 12px; }
.api-class-title-row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.api-class-title-row h1 { margin: 0; font-family: var(--font-mono); font-size: clamp(22px, 2.8vw, 32px); overflow-wrap: anywhere; }
.api-kind-tag {
  font-size: 10.5px; letter-spacing: .06em; text-transform: uppercase; color: var(--accent-text);
  border: 1px solid var(--accent-2); background: var(--accent-soft); border-radius: 5px; padding: 1px 6px; font-weight: 700;
}
.api-class-tagline { margin: 8px 0 6px; font-size: 16.5px; color: var(--text-soft); }
.api-meta-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 9px; }
.api-meta-chip {
  font-size: 11px; color: var(--muted); border: 1px solid var(--border);
  background: var(--surface); border-radius: 999px; padding: 2px 9px;
}
.api-meta-chip b { color: var(--text-soft); font-weight: 600; }
.api-inherit-line { margin-top: 10px; font-size: 12.5px; color: var(--muted); line-height: 1.9; }
.api-inherit-line code { font-size: 11.5px; }
.api-inherit-line .lbl { color: var(--faint); margin-right: 4px; }

.api-version-strip { display: flex; flex-wrap: wrap; align-items: center; gap: 5px; margin-top: 12px; }
.api-version-strip .avs-label { font-size: 11px; color: var(--faint); margin-right: 5px; }
.api-vdot {
  font-family: var(--font-mono); font-size: 11px; border-radius: 6px; padding: 2px 7px;
  border: 1px solid var(--border); color: var(--faint); background: transparent;
}
.api-vdot.on { color: var(--text-soft); border-color: var(--border-strong); background: var(--surface); }
.api-vdot.current { color: var(--on-accent); background: var(--accent); border-color: var(--accent); font-weight: 700; }
a.api-vdot:hover { text-decoration: none; border-color: var(--accent-2); color: var(--accent-text); }
.api-vdot.current:hover { color: var(--on-accent); }

.api-class-note {
  margin-top: 14px; padding: 12px 15px; border-radius: 11px;
  background: var(--surface-2); border: 1px solid var(--border);
  color: var(--text-soft); font-size: 13.5px; line-height: 1.7;
}
.api-class-note b { color: var(--text); }

.api-class-facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 8px; margin-top: 12px; }
.api-fact {
  border: 1px solid var(--border); border-radius: 10px; background: var(--surface);
  padding: 9px 11px; font-size: 11.5px; color: var(--muted);
}
.api-fact b { display: block; color: var(--text); font-size: 12.5px; margin-top: 2px; font-weight: 600; }

/* 工具栏 */
.api-toolbar {
  position: sticky; top: var(--topbar-h); z-index: 30;
  margin: 0 -6px 14px; padding: 10px 6px 9px;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  display: flex; flex-wrap: wrap; gap: 7px; align-items: center;
}
.api-toolbar input[type="search"] {
  flex: 1 1 220px; min-width: 150px; border: 1px solid var(--border); background: var(--surface);
  color: var(--text); border-radius: 8px; padding: 7px 10px; font-size: 12.5px; outline: none;
  font-family: var(--font-sans);
}
.api-toolbar input[type="search"]:focus { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-soft); }
.api-toolbar .api-tool-sep { width: 1px; height: 20px; background: var(--border); margin: 0 2px; }
.api-toggle {
  display: inline-flex; align-items: center; gap: 5px; border: 1px solid var(--border);
  background: var(--surface); color: var(--muted); border-radius: 8px; padding: 5px 9px;
  font-size: 11.5px; cursor: pointer; font-family: var(--font-sans); white-space: nowrap;
}
.api-toggle:hover { color: var(--text); border-color: var(--border-strong); }
.api-toggle.on { color: var(--accent-text); border-color: var(--accent-2); background: var(--accent-soft); }
.api-toggle input { accent-color: var(--accent); margin: 0; }

.api-chips { display: flex; flex-wrap: wrap; gap: 5px; margin: 0 0 12px; }
.api-chip {
  border: 1px solid var(--border); background: var(--surface); color: var(--muted);
  border-radius: 999px; padding: 3px 9px; font-size: 11.5px; cursor: pointer; font-family: var(--font-sans);
  display: inline-flex; align-items: center; gap: 5px;
}
.api-chip:hover { color: var(--text); border-color: var(--border-strong); }
.api-chip.active { color: var(--accent-text); background: var(--accent-soft); border-color: var(--accent-2); font-weight: 600; }
.api-chip .n { font-family: var(--font-mono); font-size: 10px; color: var(--faint); }
.api-chip.active .n { color: var(--accent-text); }

/* 方法组 */
.api-group { margin: 0 0 20px; }
.api-group-head {
  display: flex; align-items: baseline; gap: 9px; margin: 0 0 7px;
  padding-top: 4px;
}
.api-group-head h3 { margin: 0; font-size: 14.5px; }
.api-group-head .agh-en { font-size: 10px; letter-spacing: .1em; color: var(--faint); font-family: var(--font-mono); text-transform: uppercase; }
.api-group-head .agh-count { margin-left: auto; font-size: 10.5px; color: var(--faint); font-family: var(--font-mono); }

.api-method {
  border: 1px solid var(--border); border-radius: 11px; background: var(--surface);
  padding: 10px 13px; margin-bottom: 6px;
  transition: border-color .12s ease;
}
.api-method:hover, .api-method.hovering { border-color: var(--border-strong); }
.api-method.focused { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-soft); }
.api-method.is-inherited { background: color-mix(in srgb, var(--surface) 72%, var(--bg)); }
.api-method-head { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.api-sig {
  font-family: var(--font-mono); font-size: 12.5px; line-height: 1.55;
  color: var(--text-soft); overflow-wrap: anywhere; background: none; padding: 0;
}
.api-sig .api-sig-name { color: var(--text); font-weight: 700; }
.api-sig .api-sig-ret { color: var(--purple); }
.api-badges { display: inline-flex; flex-wrap: wrap; gap: 4px; margin-left: auto; }
.api-badge {
  font-size: 9.5px; letter-spacing: .03em; border-radius: 4px; padding: 0 5px;
  border: 1px solid var(--border); color: var(--faint); font-family: var(--font-mono); white-space: nowrap;
  line-height: 1.55;
}
.api-badge.static { color: var(--accent-text); border-color: color-mix(in srgb, var(--accent-2) 45%, transparent); }
.api-badge.default { color: var(--green); border-color: color-mix(in srgb, var(--green) 40%, transparent); }
.api-badge.abstract { color: var(--purple); border-color: color-mix(in srgb, var(--purple) 40%, transparent); }
.api-badge.deprecated { color: var(--red); border-color: color-mix(in srgb, var(--red) 40%, transparent); }
.api-badge.preview { color: var(--amber); border-color: color-mix(in srgb, var(--amber) 40%, transparent); }
.api-badge.new { color: var(--green); border-color: color-mix(in srgb, var(--green) 40%, transparent); background: var(--green-soft); }
.api-badge.inherited { color: var(--muted); border-style: dashed; }
.api-badge.protected { color: var(--amber); }

.api-plain { margin-top: 5px; color: var(--text-soft); font-size: 13px; line-height: 1.6; }
.api-plain .api-auto-dot {
  display: inline-block; width: 5px; height: 5px; border-radius: 50%;
  background: var(--faint); margin-right: 6px; vertical-align: 2px;
}
.api-official { margin-top: 5px; color: var(--muted); font-size: 12.5px; line-height: 1.6; }
.api-official p { margin: 0; }
.api-spec-zh { margin-top: 5px; color: var(--text-soft); font-size: 12.8px; line-height: 1.65; }
.api-spec-zh p { margin: 0 0 2px; }
.api-spec-label {
  display: none; font-family: var(--font-mono); font-size: 9.5px;
  letter-spacing: .08em; text-transform: uppercase; color: var(--faint); margin-bottom: 3px;
}
body.api-lang-mixed .api-spec-label { display: block; }
body.api-plain .api-official, body.api-spec .api-plain { display: none; }
body.api-plain .api-spec-zh { display: none; }
body.api-lang-zh .api-spec-en { display: none; }
body.api-lang-en .api-spec-zh { display: none; }
body.api-spec.api-lang-en .api-note-cn { display: none; }
body.api-spec.api-lang-zh .api-note-en { display: none; }
body.api-spec .api-method { padding-top: 12px; }

/* 白话三语言 */
.api-plain-zh { display: inline; }
.api-plain-en { display: block; margin-top: 3px; font-size: 12px; color: var(--muted); line-height: 1.55; }
body.api-lang-zh .api-plain-en { display: none; }
body.api-lang-en .api-plain-zh { display: none; }
body.api-lang-en .api-plain-en { margin-top: 0; font-size: 13px; color: var(--text-soft); }
body.api-lang-en .api-plain .api-auto-dot { display: none; }

.api-method-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 7px; }
.api-method-foot .amf-inherit { font-size: 10.5px; color: var(--faint); font-family: var(--font-mono); }
.api-detail-toggle {
  margin-left: auto; border: 0; background: none; color: var(--accent-text);
  font-size: 11.5px; cursor: pointer; padding: 0; font-family: var(--font-sans);
}
.api-detail-toggle:hover { text-decoration: underline; }
.api-details { margin-top: 8px; border-top: 1px dashed var(--border); padding-top: 8px; }
.api-details[hidden] { display: none; }
.api-details h4 { margin: 10px 0 4px; font-size: 12px; color: var(--text); }
.api-details p { margin: 4px 0; font-size: 12.5px; color: var(--text-soft); line-height: 1.65; white-space: pre-wrap; }
.api-details .api-doc-code {
  background: var(--bg-code); border: 1px solid var(--border); border-radius: 8px;
  padding: 9px 11px; overflow: auto; font-family: var(--font-mono); font-size: 11.5px;
  line-height: 1.55; margin: 7px 0; white-space: pre; color: var(--text-soft);
}
.api-param-table { width: 100%; border-collapse: collapse; margin: 5px 0 8px; font-size: 12px; }
.api-param-table th, .api-param-table td {
  text-align: left; padding: 5px 8px; border-bottom: 1px solid var(--border); vertical-align: top;
}
.api-param-table th { color: var(--faint); font-weight: 600; font-size: 10.5px; text-transform: uppercase; letter-spacing: .06em; }
.api-param-table td:first-child { font-family: var(--font-mono); color: var(--accent-text); white-space: nowrap; }
.api-param-table td { color: var(--text-soft); }

.api-more-wrap { margin: 4px 0 18px; }
.api-more-toggle {
  border: 1px solid var(--border); background: var(--surface); color: var(--muted);
  border-radius: 9px; padding: 7px 12px; font-size: 12px; cursor: pointer; font-family: var(--font-sans);
}
.api-more-toggle:hover { color: var(--text); border-color: var(--border-strong); }

.api-method-empty { padding: 26px 0; color: var(--muted); font-size: 13px; }

/* 速查卡 */
.api-cheat {
  margin: 2px 0 18px; border: 1px solid var(--border); border-radius: 16px;
  background: linear-gradient(165deg, var(--surface), var(--surface-2));
  padding: 16px 18px 14px;
}
.api-cheat-head { display: flex; align-items: flex-start; gap: 10px; }
.api-cheat-kicker { font-size: 10px; letter-spacing: .12em; color: var(--accent-text); font-weight: 700; font-family: var(--font-mono); }
.api-cheat-head h2 { margin: 2px 0 0; font-size: 17px; }
.api-cheat-count { margin-left: auto; font-size: 10.5px; color: var(--faint); font-family: var(--font-mono); white-space: nowrap; padding-top: 3px; }
.api-cheat-intro { margin: 8px 0 12px; color: var(--text-soft); font-size: 13px; line-height: 1.65; max-width: 82ch; }
.api-cheat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(310px, 1fr)); gap: 10px 16px; }
.api-cheat-sec h4 {
  margin: 0 0 5px; font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--faint); font-family: var(--font-mono);
}
.api-cheat-sec ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 1px; }
.api-cheat-item {
  width: 100%; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 7px;
  text-align: left; border: 0; background: transparent; border-radius: 7px;
  padding: 4px 6px; cursor: pointer; font-family: var(--font-sans); color: var(--text-soft);
}
.api-cheat-item:hover { background: var(--accent-soft); }
.api-cheat-item:hover .ach-sig { color: var(--accent-text); }
.ach-sig { font-family: var(--font-mono); font-size: 11.5px; color: var(--text); flex-shrink: 0; max-width: 48%; overflow-wrap: anywhere; }
.ach-text { font-size: 12.5px; color: var(--text-soft); flex: 1 1 auto; }
.ach-ret { font-size: 10.5px; color: var(--green); font-family: var(--font-mono); flex-shrink: 0; }
.api-cheat-item .ach-note { flex-basis: 100%; font-size: 10.5px; color: var(--amber); font-style: normal; line-height: 1.5; }
.api-cheat-pitfalls { margin-top: 12px; border-top: 1px dashed var(--border); padding-top: 10px; }
.api-cheat-pitfalls b { font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--red); font-family: var(--font-mono); }
.api-cheat-pitfalls ul { margin: 5px 0 0; padding-left: 18px; color: var(--text-soft); font-size: 12px; line-height: 1.65; }
.api-cheat-pitfalls li { margin: 2px 0; }

/* 字段 */
.api-fields { margin: 4px 0 18px; }
.api-field {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px;
  border-bottom: 1px solid var(--border); padding: 7px 2px; font-size: 12.5px;
}
.api-field:last-child { border-bottom: 0; }
.api-field code { font-size: 12px; background: none; padding: 0; color: var(--text-soft); }
.api-field .af-doc { color: var(--muted); font-size: 12px; flex: 1 1 260px; }

/* 空态 / 错误 */
.api-empty { border: 1px dashed var(--border-strong); border-radius: 14px; padding: 28px; text-align: center; color: var(--muted); }
.api-empty b { color: var(--text); }
.api-error { border: 1px solid color-mix(in srgb, var(--red) 40%, var(--border)); background: var(--red-soft); border-radius: 12px; padding: 16px 18px; color: var(--text-soft); }
.api-error code { font-size: 12px; }
.api-warn { border: 1px solid color-mix(in srgb, var(--amber) 40%, var(--border)); background: color-mix(in srgb, var(--amber) 9%, var(--surface)); border-radius: 12px; padding: 14px 16px; color: var(--text-soft); }
.api-tree-empty { padding: 10px 8px; font-size: 12px; color: var(--faint); }
.api-app [hidden] { display: none !important; }
.api-class-note p { margin: 4px 0 0; }
.api-class-official { margin-top: 22px; padding-top: 14px; border-top: 1px solid var(--border); font-size: 12.8px; }
.api-official-head {
  font-size: 11px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--faint); font-family: var(--font-mono); margin-bottom: 5px;
}
.api-class-official p { margin: 6px 0; line-height: 1.7; }
.api-toolbar .count { font-size: 11.5px; color: var(--faint); font-family: var(--font-mono); white-space: nowrap; }
.api-hero-actions .api-mode-toggle { margin-left: 2px; }

/* ---------- 悬浮卡片 ---------- */
.api-hover {
  position: fixed; z-index: 320; width: 350px; max-width: calc(100vw - 20px);
  background: var(--surface); border: 1px solid var(--border-strong);
  border-radius: 14px; box-shadow: var(--shadow-md);
  padding: 13px 15px 12px; pointer-events: none;
  opacity: 0; transform: translateY(5px);
  transition: opacity .12s ease, transform .12s ease;
}
.api-hover.show { opacity: 1; transform: none; }
.api-hover-title { display: flex; align-items: center; gap: 7px; margin-bottom: 4px; flex-wrap: wrap; }
.api-hover-title code { background: none; padding: 0; color: var(--text); font-size: 12.5px; font-weight: 700; overflow-wrap: anywhere; }
.api-hover-sub { font-size: 11px; color: var(--faint); margin-bottom: 7px; }
.api-hover-return {
  margin-top: 4px; padding: 5px 8px; border-radius: 7px;
  background: var(--surface-2); border: 1px solid var(--border);
  font-size: 11.5px; color: var(--text-soft); line-height: 1.55;
}
.api-hover-return .ahr-label {
  display: inline-block; font-size: 9.5px; letter-spacing: .07em; text-transform: uppercase;
  color: var(--green); margin-right: 6px; font-family: var(--font-mono);
}
.api-hover-return b { color: var(--text); font-weight: 600; }
.api-hover-plain { font-size: 13px; color: var(--text-soft); margin: 0 0 8px; line-height: 1.6; }
.api-hover-stars { font-family: var(--font-mono); font-size: 11px; color: var(--accent-text); letter-spacing: 1px; }
.api-hover-block { margin-top: 7px; font-size: 11.5px; line-height: 1.6; }
.api-hover-block .ahb-label {
  display: inline-block; font-size: 9.5px; letter-spacing: .07em; text-transform: uppercase;
  color: var(--faint); margin-right: 5px; font-family: var(--font-mono);
}
.api-hover-block.pitfall .ahb-label { color: var(--red); }
.api-hover-block.scene .ahb-label { color: var(--green); }
.api-hover-block ul { margin: 3px 0 0; padding-left: 16px; color: var(--text-soft); }
.api-hover-block li { margin: 1px 0; }
.api-hover-example {
  margin-top: 8px; background: var(--bg-code); border: 1px solid var(--border); border-radius: 7px;
  padding: 6px 8px; font-family: var(--font-mono); font-size: 10.8px; line-height: 1.5;
  color: var(--text-soft); white-space: pre-wrap; overflow-wrap: anywhere;
}
.api-hover-foot { margin-top: 8px; padding-top: 6px; border-top: 1px dashed var(--border); font-size: 10.5px; color: var(--faint); display: flex; flex-wrap: wrap; gap: 8px; }
.api-hover-tags { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 7px; }
.api-hover-tags span { border: 1px solid var(--border); border-radius: 4px; padding: 0 5px; font-size: 10px; color: var(--muted); }

@media (hover: none) { .api-hover { display: none !important; } }

/* ---------- 场景页 / 杂项 ---------- */
.api-scene-classes { display: flex; flex-direction: column; gap: 7px; margin-top: 14px; }
.api-scene-class {
  display: flex; align-items: center; gap: 10px; border: 1px solid var(--border);
  border-radius: 11px; background: var(--surface); padding: 10px 13px;
}
.api-scene-class:hover { border-color: var(--border-strong); text-decoration: none; }
.api-scene-class b { font-family: var(--font-mono); font-size: 13px; color: var(--text); }
.api-scene-class span { color: var(--muted); font-size: 12px; }
.api-scene-class .asc-go { margin-left: auto; color: var(--accent-text); font-size: 12px; }

.api-home-note { margin-top: 26px; font-size: 12px; color: var(--faint); line-height: 1.7; }
.api-home-note code { font-size: 11px; }

/* ============================================================
   视觉升级 · 色彩 / 氛围 / 动效 / 正反馈
   ============================================================ */

/* ---------- 专属色相（增删改查遍历工厂构造） ---------- */
body.api-mode {
  --api-add: #15803d; --api-del: #b91c1c; --api-mod: #b45309; --api-query: #1d4ed8;
  --api-iter: #7e22ce; --api-factory: #0e7490; --api-ctor: #be185d;
  --api-add-h: #22c55e; --api-del-h: #ef4444; --api-mod-h: #f59e0b; --api-query-h: #3b82f6;
  --api-iter-h: #a855f7; --api-factory-h: #06b6d4; --api-ctor-h: #ec4899;
}
:root[data-theme="dark"] body.api-mode {
  --api-add: #4ade80; --api-del: #f87171; --api-mod: #fbbf24; --api-query: #60a5fa;
  --api-iter: #c084fc; --api-factory: #22d3ee; --api-ctor: #f472b6;
}

/* ---------- 背景：全站统一的 GitHub 方格网 Canvas 由 site.js 注入 ---------- */
body.api-mode .layout { position: relative; z-index: 1; }

/* ---------- 自定义滚动条 ---------- */
body.api-mode, body.api-mode * { scrollbar-width: thin; scrollbar-color: color-mix(in srgb, var(--accent) 40%, var(--border)) transparent; }
body.api-mode ::-webkit-scrollbar { width: 10px; height: 10px; }
body.api-mode ::-webkit-scrollbar-track { background: transparent; }
body.api-mode ::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--accent) 38%, var(--border));
  border-radius: 8px; border: 2px solid var(--bg);
}
body.api-mode ::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ---------- 渐变文字 / 英雄区 ---------- */
.api-grad {
  background: linear-gradient(115deg, var(--accent), var(--api-factory-h) 48%, #d9a441 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.api-hero { border-color: color-mix(in srgb, var(--accent) 26%, var(--border)); }
.api-hero::before {
  content: ""; position: absolute; inset: -30%; pointer-events: none;
  background:
    radial-gradient(38% 46% at 14% 18%, color-mix(in srgb, var(--accent) 20%, transparent), transparent 70%),
    radial-gradient(32% 40% at 86% 12%, color-mix(in srgb, #f2c568 18%, transparent), transparent 72%),
    radial-gradient(42% 50% at 72% 92%, color-mix(in srgb, var(--api-iter-h) 13%, transparent), transparent 72%),
    radial-gradient(30% 38% at 26% 88%, color-mix(in srgb, var(--api-factory-h) 13%, transparent), transparent 72%);
  animation: apiHeroDrift 18s ease-in-out infinite alternate;
}
.api-hero > * { position: relative; z-index: 1; }
@keyframes apiHeroDrift {
  from { transform: translate3d(0, 0, 0) rotate(0deg); }
  to { transform: translate3d(2%, -3%, 0) rotate(2deg); }
}
.api-stat { transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease; }
.api-stat:hover {
  transform: translateY(-2px); border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
  box-shadow: 0 6px 18px color-mix(in srgb, var(--accent) 18%, transparent);
}
.api-stat b { color: var(--accent-text); }

/* ---------- 按钮 / 芯片 / 版本点 ---------- */
.api-btn { transition: transform .14s ease, box-shadow .14s ease, border-color .14s ease, background .14s ease, color .14s ease; }
.api-btn:hover { transform: translateY(-1px); }
.api-btn.primary { box-shadow: 0 6px 18px color-mix(in srgb, var(--accent) 26%, transparent); }
.api-btn.primary:hover { box-shadow: 0 9px 24px color-mix(in srgb, var(--accent) 34%, transparent); }
.api-chip { transition: all .15s ease; }
.api-chip.active {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: var(--on-accent); border-color: transparent;
  box-shadow: 0 4px 14px color-mix(in srgb, var(--accent) 30%, transparent);
}
.api-chip.active .n { color: var(--on-accent); opacity: .85; }
.api-vdot { transition: all .15s ease; }
.api-vdot.current { box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent); }
a.api-vdot:hover { transform: translateY(-1px); }

/* ---------- 分组头 ---------- */
.api-group-head { position: relative; padding-left: 12px; }
.api-group-head::before {
  content: ""; position: absolute; left: 0; top: 4px; bottom: 4px; width: 4px; border-radius: 4px;
  background: linear-gradient(var(--accent), var(--api-factory-h));
}
.api-group-head .agh-count {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 999px; padding: 1px 8px;
}

/* ---------- 方法卡 ---------- */
.api-method { position: relative; overflow: hidden; transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease; }
.api-method::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: linear-gradient(var(--accent), var(--api-factory-h));
  opacity: 0; transition: opacity .16s ease;
}
.api-method:hover, .api-method.hovering {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
  box-shadow: 0 7px 22px color-mix(in srgb, var(--accent) 14%, transparent);
}
.api-method:hover::before, .api-method.hovering::before { opacity: 1; }
.api-method.focused { border-color: var(--accent); animation: apiFocusPulse 1.4s ease; }
@keyframes apiFocusPulse {
  0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 45%, transparent); }
  70% { box-shadow: 0 0 0 12px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}
.api-copy {
  border: 1px solid var(--border); background: var(--surface); color: var(--muted);
  border-radius: 5px; padding: 0 6px; font-size: 10px; line-height: 1.6; cursor: pointer;
  font-family: var(--font-mono); white-space: nowrap; transition: all .14s ease;
}
.api-copy:hover { color: var(--accent-text); border-color: var(--accent-2); background: var(--accent-soft); }
.api-copy.copied { color: var(--api-add); border-color: color-mix(in srgb, var(--api-add-h) 50%, transparent); background: color-mix(in srgb, var(--api-add-h) 12%, var(--surface)); }

/* ---------- 速查卡色彩分区 ---------- */
.api-cheat { border-color: color-mix(in srgb, var(--accent) 24%, var(--border)); box-shadow: var(--shadow-sm); }
.api-cheat-sec { --h: var(--accent); --ht: var(--accent-text); }
.api-cheat-sec[data-hue="add"] { --h: var(--api-add-h); --ht: var(--api-add); }
.api-cheat-sec[data-hue="del"] { --h: var(--api-del-h); --ht: var(--api-del); }
.api-cheat-sec[data-hue="mod"] { --h: var(--api-mod-h); --ht: var(--api-mod); }
.api-cheat-sec[data-hue="query"] { --h: var(--api-query-h); --ht: var(--api-query); }
.api-cheat-sec[data-hue="iter"] { --h: var(--api-iter-h); --ht: var(--api-iter); }
.api-cheat-sec[data-hue="factory"] { --h: var(--api-factory-h); --ht: var(--api-factory); }
.api-cheat-sec[data-hue="ctor"] { --h: var(--api-ctor-h); --ht: var(--api-ctor); }
.api-cheat-sec h4 { display: flex; align-items: center; gap: 7px; color: var(--ht); }
.acs-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 20px; height: 20px; border-radius: 6px; flex-shrink: 0;
  font-size: 11px; font-weight: 800; font-family: var(--font-sans);
  color: var(--ht); background: color-mix(in srgb, var(--h) 15%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--h) 40%, transparent);
}
.api-cheat-item { position: relative; transition: background .13s ease, transform .13s ease; border-left: 2px solid transparent; }
.api-cheat-item:hover { background: color-mix(in srgb, var(--h) 10%, var(--surface)); border-left-color: var(--h); transform: translateX(2px); }
.api-cheat-item:hover .ach-sig { color: var(--ht); }
.api-cheat-item:active { transform: translateX(2px) scale(.99); }

/* ---------- 卡片悬浮抬升 ---------- */
.api-scene-card, .api-pkg-card, .api-class-card, .api-scene-class { transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease; }
.api-scene-card:hover, .api-pkg-card:hover, .api-class-card:hover, .api-scene-class:hover {
  transform: translateY(-2px); border-color: color-mix(in srgb, var(--accent) 42%, var(--border));
  box-shadow: 0 8px 22px color-mix(in srgb, var(--accent) 14%, transparent);
}
.api-scene-card .asc-icon {
  display: inline-flex; align-items: center; justify-content: center; width: 26px; height: 26px;
  border-radius: 8px; font-size: 13px; font-weight: 800;
  color: var(--accent-text); background: var(--accent-soft); border: 1px solid color-mix(in srgb, var(--accent) 26%, var(--border));
}

/* ---------- 入场 / 弹跳 / 火花 / Toast ---------- */
.api-reveal { animation: apiRise .5s cubic-bezier(.2, .7, .2, 1) both; }
@keyframes apiRise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.api-pop { animation: apiPop .3s ease; }
@keyframes apiPop { 0% { transform: scale(1); } 45% { transform: scale(1.08); } 100% { transform: scale(1); } }
.api-spark-host { position: fixed; z-index: 400; pointer-events: none; left: 0; top: 0; }
.api-spark {
  position: fixed; width: 7px; height: 7px; border-radius: 50%; pointer-events: none;
  background: var(--sc, var(--accent)); left: 0; top: 0;
  animation: apiSpark .7s cubic-bezier(.1, .7, .3, 1) forwards;
}
@keyframes apiSpark {
  from { opacity: 1; transform: translate(0, 0) scale(1); }
  to { opacity: 0; transform: translate(var(--dx), var(--dy)) scale(.2); }
}
.api-toast {
  position: fixed; left: 50%; bottom: 26px; z-index: 410; transform: translate(-50%, 16px);
  display: flex; align-items: center; gap: 8px;
  background: var(--surface); color: var(--text); border: 1px solid var(--border-strong);
  border-left: 4px solid var(--api-add-h); border-radius: 12px; padding: 10px 16px;
  font-size: 13px; box-shadow: var(--shadow-md); opacity: 0; pointer-events: none;
  transition: opacity .2s ease, transform .2s ease;
}
.api-toast.show { opacity: 1; transform: translate(-50%, 0); }
.api-toast .at-icon { color: var(--api-add); font-weight: 800; }
.api-toast.warn { border-left-color: var(--api-mod-h); }
.api-toast.warn .at-icon { color: var(--api-mod); }

/* ---------- 悬浮卡片 ---------- */
.api-hover { border-top: 3px solid var(--accent); box-shadow: 0 14px 44px rgba(0, 0, 0, .2); }
.api-hover.show { animation: apiHoverIn .16s ease; }
@keyframes apiHoverIn { from { opacity: 0; transform: translateY(6px) scale(.98); } to { opacity: 1; transform: none; } }

/* ---------- 降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .api-hero::before { animation: none; }
  .api-reveal, .api-pop, .api-spark, .api-hover.show, .api-method.focused { animation: none; }
  .api-method, .api-btn, .api-chip, .api-stat, .api-scene-card, .api-pkg-card, .api-class-card { transition: none; }
}
@media print {
  .api-hero::before, .api-spark-host, .api-toast { display: none !important; }
  .api-reveal, .api-pop, .api-method.focused { animation: none !important; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  body.api-mode .layout { grid-template-columns: minmax(0, 1fr); }
  body.api-mode .main { max-width: none; }
  .api-hero { padding: 22px 20px 18px; }
  .api-toolbar { position: static; }
  .api-badges { margin-left: 0; }
  .api-sig { width: 100%; }
  .api-hover { display: none !important; }
}
@media (max-width: 640px) {
  .api-home-grid, .api-pkg-grid, .api-class-grid { grid-template-columns: 1fr; }
  .api-cheat-grid { grid-template-columns: 1fr; }
  .api-cheat { padding: 13px 13px 11px; }
  .api-cheat-count { display: none; }
  .api-lang-toggle .lt-label { display: none; }
  .api-hero h1 { font-size: 25px; }
  .api-method { padding: 9px 11px; }
  .api-sig { font-size: 11.5px; }
  .api-badges { gap: 3px; }
  .api-mode-toggle .mt-hint { display: none; }
  .api-version-strip { gap: 4px; }
  .api-class-facts { grid-template-columns: 1fr 1fr; }
  .api-section-title { flex-wrap: wrap; }
  .api-toolbar {
    position: sticky; top: var(--topbar-h); z-index: 30;
    gap: 6px; padding: 8px 6px; margin: 0 -6px 12px;
  }
  .api-toolbar input[type="search"] { flex: 1 1 150px; min-width: 130px; height: 40px; font-size: 16px; }
  .api-toolbar .api-tool-sep { display: none; }
  .api-toolbar .api-toggle, .api-toolbar .api-btn { min-height: 40px; padding: 8px 11px; font-size: 12.5px; }
  .api-toolbar .api-toggle input { width: 16px; height: 16px; }
  .api-toolbar .api-mode-toggle button, .api-toolbar .api-lang-toggle button { min-height: 40px; padding: 8px 11px; }
  .api-chip { min-height: 34px; padding: 6px 12px; font-size: 12px; }
}

/* ---------- 打印 ---------- */
@media print {
  body.api-mode .topbar, body.api-mode .sidebar, body.api-mode .api-toolbar, body.api-mode .api-hover { display: none !important; }
  body.api-mode .layout { display: block; margin: 0; padding: 0; }
  .api-method { break-inside: avoid; }
}