/* ============================================================
 * 知仓 ZHICANG · 设计系统 V4「墨库 Modern Archive」
 * ------------------------------------------------------------
 * 商业交付版：设计令牌 / 组件库 / 页面骨架
 * 兼容层：完整保留 V3 全部 zc-* 类名与 --zc-* 变量名，
 *         旧页面无需改动即可获得新视觉；新页面使用 V4 组件类。
 * 纪律：类名前缀 zc-、变量前缀 --zc-（站群防查重矩阵），
 *       零外部依赖，对比度 ≥ 4.5:1，移动端 360px 无横向滚动。
 * ============================================================ */

/* ============================================================
 * 1. 设计令牌 Design Tokens
 * ============================================================ */
:root {
  /* —— 品牌色：深靛蓝（保留 V3 品牌蓝血统，重建色阶） —— */
  --zc-primary: #1B3A8C;
  --zc-primary-d: #12295F;
  --zc-primary-l: #2A4FA8;
  --zc-primary-soft: #E8EDF9;
  --zc-primary-line: #C7D2EC;

  /* —— 兼容别名（V3 变量名，保持可覆盖） —— */
  --zc-accent: #D97706;
  --zc-accent-soft: #FEF3E2;

  /* —— 中性色阶（冷调） —— */
  --zc-paper: #F5F7FA;
  --zc-paper-2: #EDF1F6;
  --zc-card: #FFFFFF;
  --zc-card-2: #F8FAFC;
  --zc-ink: #0F172A;
  --zc-ink-2: #334155;
  --zc-muted: #64748B;
  --zc-faint: #94A3B8;
  --zc-border: #E4E9F0;
  --zc-border-strong: #CBD5E1;

  /* —— 语义色 —— */
  --zc-success: #047857;
  --zc-success-soft: #E7F5EF;
  --zc-warn: #B45309;
  --zc-warn-soft: #FEF3E2;
  --zc-danger: #B91C1C;
  --zc-danger-soft: #FDECEC;
  --zc-info: #0E7490;
  --zc-info-soft: #E6F4F8;

  /* —— 深色面（页脚/榜单/浮层） —— */
  --zc-dark: #0B1533;
  --zc-dark-2: #101E43;
  --zc-dark-line: #22315C;
  --zc-dark-ink: #E8EDF9;
  --zc-dark-muted: #9FB0D0;

  /* —— 字体 —— */
  --zc-font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  --zc-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", "Courier New", monospace;

  /* —— 圆角 —— */
  --zc-radius-sm: 8px;
  --zc-radius: 12px;
  --zc-radius-lg: 16px;
  --zc-radius-pill: 999px;

  /* —— 阴影 —— */
  --zc-shadow-sm: 0 1px 2px rgba(15, 23, 42, .05), 0 1px 3px rgba(15, 23, 42, .04);
  --zc-shadow-md: 0 2px 6px rgba(15, 23, 42, .06), 0 8px 20px -6px rgba(15, 23, 42, .10);
  --zc-shadow-lg: 0 12px 32px -8px rgba(15, 23, 42, .16), 0 2px 8px rgba(15, 23, 42, .06);

  /* —— 动效 —— */
  --zc-ease: cubic-bezier(.2, .8, .2, 1);
  --zc-dur-fast: 160ms;
  --zc-dur: 240ms;
  --zc-dur-slow: 380ms;

  /* —— 布局 —— */
  --zc-maxw: 1200px;
  --zc-gutter: 20px;
  --zc-header-h: 60px;
}

/* ============================================================
 * 2. 基础重置与排版
 * ============================================================ */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--zc-header-h) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--zc-font);
  font-size: 15px;
  line-height: 1.65;
  color: var(--zc-ink-2);
  background: var(--zc-paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  margin: 0;
  color: var(--zc-ink);
  font-weight: 800;
  letter-spacing: -.015em;
  line-height: 1.25;
  overflow-wrap: break-word;
}
h1 { font-size: clamp(1.6rem, 3.4vw, 2.35rem); }
h2 { font-size: clamp(1.2rem, 2.2vw, 1.5rem); }
h3 { font-size: 1.02rem; }
p { margin: 0; overflow-wrap: break-word; }

a { color: var(--zc-primary); text-decoration: none; }
a:hover { color: var(--zc-primary-d); }

img, svg, video { max-width: 100%; height: auto; }
img { border-style: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
ul, ol { margin: 0; padding: 0; list-style: none; }
table { border-collapse: collapse; width: 100%; }
code, kbd, .zc-num { font-family: var(--zc-mono); font-variant-numeric: tabular-nums; }
hr { border: 0; border-top: 1px solid var(--zc-border); margin: 24px 0; }
::selection { background: var(--zc-primary-soft); color: var(--zc-primary-d); }

@media (min-width: 1024px) {
  ::-webkit-scrollbar { width: 10px; height: 10px; }
  ::-webkit-scrollbar-track { background: var(--zc-paper-2); }
  ::-webkit-scrollbar-thumb { background: #C3CCDA; border-radius: 8px; border: 2px solid var(--zc-paper-2); }
  ::-webkit-scrollbar-thumb:hover { background: #A9B5C7; }
}

/* ============================================================
 * 3. 无障碍 Accessibility
 * ============================================================ */
.zc-skip {
  position: absolute; left: 12px; top: -60px; z-index: 999;
  padding: 10px 16px; border-radius: var(--zc-radius-sm);
  background: var(--zc-primary); color: #fff; font-size: 14px; font-weight: 600;
  transition: top var(--zc-dur) var(--zc-ease);
}
.zc-skip:focus { top: 12px; color: #fff; }

:focus-visible { outline: 3px solid rgba(27, 58, 140, .38); outline-offset: 2px; border-radius: 6px; }
a:focus:not(:focus-visible), button:focus:not(:focus-visible) { outline: none; }

.zc-sr {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}

/* ============================================================
 * 4. 布局工具
 * ============================================================ */
.zc-section { max-width: var(--zc-maxw); margin: 0 auto; padding: 0 var(--zc-gutter); }
.zc-wrap { max-width: var(--zc-maxw); margin: 0 auto; padding: 0 var(--zc-gutter); }
.zc-stack-sm > * + * { margin-top: 8px; }
.zc-stack > * + * { margin-top: 16px; }
.zc-stack-lg > * + * { margin-top: 28px; }
.zc-row { display: flex; align-items: center; gap: 12px; }
.zc-row-between { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.zc-grid { display: grid; gap: 16px; min-width: 0; }
.zc-grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.zc-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.zc-grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.zc-grow { flex: 1; min-width: 0; }
.zc-hide-sm { display: none; }
.zc-mt-0 { margin-top: 0 !important; }
.zc-mb-0 { margin-bottom: 0 !important; }
@media (min-width: 640px) { .zc-hide-sm { display: revert; } }
@media (max-width: 900px) { .zc-grid-3, .zc-grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .zc-grid-2, .zc-grid-3, .zc-grid-4 { grid-template-columns: minmax(0, 1fr); } }

/* ============================================================
 * 5. 顶栏 Topbar（兼容 #mainHeader 旧结构）
 * ============================================================ */
#mainHeader, .zc-topbar {
  position: sticky; top: 0; z-index: 60;
  height: var(--zc-header-h);
  background: rgba(255, 255, 255, .82);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--zc-border);
  transition: transform var(--zc-dur) var(--zc-ease), box-shadow var(--zc-dur) var(--zc-ease);
}
#mainHeader.zc-scrolled, .zc-topbar.zc-scrolled { box-shadow: var(--zc-shadow-sm); }
#mainHeader > div, .zc-topbar-inner {
  max-width: var(--zc-maxw); margin: 0 auto; padding: 0 var(--zc-gutter);
  height: 100%; display: flex; align-items: center; gap: 16px;
}
.zc-brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.zc-brand-mark {
  width: 34px; height: 34px; border-radius: 10px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(150deg, var(--zc-primary) 0%, var(--zc-primary-d) 100%);
  color: #fff; font-size: 18px;
  box-shadow: 0 2px 8px rgba(27, 58, 140, .28);
}
.zc-brand-name { font-size: 1.06rem; font-weight: 800; color: var(--zc-ink); letter-spacing: -.02em; }
.zc-brand-sub { display: block; font-size: 10px; font-weight: 600; color: var(--zc-faint); letter-spacing: .18em; text-transform: uppercase; }

.zc-nav { display: flex; align-items: center; gap: 4px; min-width: 0; }
.zc-nav a {
  padding: 7px 12px; border-radius: var(--zc-radius-sm);
  font-size: 14px; font-weight: 500; color: var(--zc-ink-2);
  white-space: nowrap;
  transition: background var(--zc-dur-fast) var(--zc-ease), color var(--zc-dur-fast) var(--zc-ease);
}
.zc-nav a:hover { background: var(--zc-paper-2); color: var(--zc-ink); }
.zc-nav a.is-active, .zc-nav a[aria-current="page"] { color: var(--zc-primary); background: var(--zc-primary-soft); font-weight: 700; }

.zc-topbar-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; flex-shrink: 1; min-width: 0; }
.zc-topbar-search { position: relative; display: flex; align-items: center; width: clamp(150px, 22vw, 260px); min-width: 0; }
.zc-topbar-search input {
  width: 100%; min-width: 0; height: 36px; padding: 0 38px 0 34px;
  background: var(--zc-paper-2); border: 1px solid transparent; border-radius: var(--zc-radius-sm);
  font-size: 13.5px; outline: none;
  transition: background var(--zc-dur-fast) var(--zc-ease), border-color var(--zc-dur-fast) var(--zc-ease), box-shadow var(--zc-dur-fast) var(--zc-ease);
}
.zc-topbar-search input::placeholder { color: var(--zc-faint); }
.zc-topbar-search input:focus { background: #fff; border-color: var(--zc-primary-line); box-shadow: 0 0 0 3px rgba(27, 58, 140, .10); }
.zc-topbar-search > i { position: absolute; left: 11px; color: var(--zc-faint); font-size: 15px; pointer-events: none; }
.zc-topbar-search button {
  position: absolute; right: 4px; width: 28px; height: 28px; border: 0; border-radius: 7px;
  background: var(--zc-primary); color: #fff; display: flex; align-items: center; justify-content: center;
  transition: background var(--zc-dur-fast) var(--zc-ease);
}
.zc-topbar-search button:hover { background: var(--zc-primary-d); }

.zc-icon-btn {
  position: relative;
  width: 38px; height: 38px; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--zc-border); border-radius: var(--zc-radius-sm);
  background: #fff; color: var(--zc-ink-2); font-size: 17px;
  transition: all var(--zc-dur-fast) var(--zc-ease);
}
/* 顶栏图标按钮：视觉 38px，触控热区纵向扩至 ≥44px（不影响水平布局） */
.zc-icon-btn::after { content: ""; position: absolute; inset: -3px 0; }
.zc-icon-btn:hover { border-color: var(--zc-primary-line); color: var(--zc-primary); background: var(--zc-primary-soft); }
.zc-icon-btn[aria-expanded="true"] { background: var(--zc-primary); border-color: var(--zc-primary); color: #fff; }

.zc-menu-btn { display: none; }
#mobileMenu, .zc-mobile-menu {
  position: fixed; inset: var(--zc-header-h) 0 auto 0; z-index: 55;
  background: #fff; border-bottom: 1px solid var(--zc-border);
  padding: 14px var(--zc-gutter) 20px;
  box-shadow: var(--zc-shadow-lg);
  max-height: calc(100vh - var(--zc-header-h)); overflow-y: auto;
}
#mobileMenu.hidden, .zc-mobile-menu[hidden] { display: none; }
#mobileMenu .zc-mobile-nav, .zc-mobile-menu .zc-mobile-nav { display: grid; gap: 2px; margin-top: 12px; }
#mobileMenu .zc-mobile-nav a, .zc-mobile-menu .zc-mobile-nav a { padding: 12px 14px; border-radius: var(--zc-radius-sm); color: var(--zc-ink-2); font-weight: 500; }
#mobileMenu .zc-mobile-nav a:hover, .zc-mobile-menu .zc-mobile-nav a:hover { background: var(--zc-paper-2); }
#mobileMenu .zc-mobile-nav a.is-active { background: var(--zc-primary-soft); color: var(--zc-primary); font-weight: 700; }

@media (max-width: 900px) { .zc-menu-btn { display: inline-flex; } .zc-nav { display: none; } }
@media (max-width: 560px) { .zc-topbar-search { display: none; } }

/* ============================================================
 * 6. 按钮体系 Buttons
 * ============================================================ */
.zc-btn, .zc-btn-primary, .zc-btn-ghost, .zc-btn-accent, .zc-btn-dark, .zc-btn-quiet {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 0 20px;
  border: 1px solid transparent; border-radius: var(--zc-radius-sm);
  font-size: 14.5px; font-weight: 600; line-height: 1;
  white-space: nowrap; cursor: pointer;
  transition: transform var(--zc-dur-fast) var(--zc-ease), background var(--zc-dur-fast) var(--zc-ease),
              box-shadow var(--zc-dur-fast) var(--zc-ease), border-color var(--zc-dur-fast) var(--zc-ease), color var(--zc-dur-fast) var(--zc-ease);
}
.zc-btn:active, .zc-btn-primary:active, .zc-btn-ghost:active, .zc-btn-accent:active, .zc-btn-dark:active, .zc-btn-quiet:active { transform: translateY(1px); }
.zc-btn:disabled, .zc-btn-primary:disabled, .zc-btn-ghost:disabled { opacity: .55; cursor: not-allowed; transform: none; }
.zc-btn i, .zc-btn-primary i, .zc-btn-ghost i, .zc-btn-accent i, .zc-btn-dark i, .zc-btn-quiet i { font-size: 17px; }

.zc-btn-primary {
  background: linear-gradient(175deg, var(--zc-primary-l) 0%, var(--zc-primary) 55%, var(--zc-primary-d) 100%);
  color: #fff !important;
  box-shadow: 0 2px 10px rgba(27, 58, 140, .24), inset 0 1px 0 rgba(255, 255, 255, .14);
}
.zc-btn-primary:hover { color: #fff !important; box-shadow: 0 6px 18px rgba(27, 58, 140, .30), inset 0 1px 0 rgba(255, 255, 255, .18); }

.zc-btn-ghost, .zc-btn {
  background: #fff; border-color: var(--zc-border-strong); color: var(--zc-ink-2) !important;
  box-shadow: var(--zc-shadow-sm);
}
.zc-btn-ghost:hover, .zc-btn:hover { border-color: var(--zc-primary-line); color: var(--zc-primary) !important; background: var(--zc-primary-soft); }

.zc-btn-accent { background: var(--zc-accent); color: #fff !important; box-shadow: 0 2px 10px rgba(217, 119, 6, .24); }
.zc-btn-accent:hover { background: #B45309; color: #fff !important; }

.zc-btn-dark { background: var(--zc-dark); color: #fff !important; }
.zc-btn-dark:hover { background: var(--zc-dark-2); color: #fff !important; }

.zc-btn-quiet { background: transparent; color: var(--zc-muted) !important; }
.zc-btn-quiet:hover { background: var(--zc-paper-2); color: var(--zc-ink) !important; }

.zc-btn-sm { min-height: 36px; padding: 0 14px; font-size: 13.5px; }
.zc-btn-lg { min-height: 52px; padding: 0 28px; font-size: 16px; border-radius: var(--zc-radius); }
.zc-btn-block { width: 100%; }
.zc-btn-group { display: flex; flex-wrap: wrap; gap: 10px; }

/* ============================================================
 * 7. 卡片体系 Cards
 * ============================================================ */
.zc-card {
  position: relative;
  background: var(--zc-card); border: 1px solid var(--zc-border);
  border-radius: var(--zc-radius); padding: 18px;
  box-shadow: var(--zc-shadow-sm);
  transition: transform var(--zc-dur) var(--zc-ease), box-shadow var(--zc-dur) var(--zc-ease), border-color var(--zc-dur) var(--zc-ease);
}
.zc-card:hover { border-color: var(--zc-primary-line); box-shadow: var(--zc-shadow-md); }
.zc-card-hover:hover { transform: translateY(-2px); }
.zc-card-flat { box-shadow: none; }
.zc-card-quiet { background: var(--zc-card-2); }
.zc-card-pad-lg { padding: 24px; }
.zc-card-head { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }

.zc-icon-tile {
  width: 44px; height: 44px; flex-shrink: 0; border-radius: var(--zc-radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 21px; background: var(--zc-primary-soft); color: var(--zc-primary);
}
.zc-icon-tile-lg { width: 54px; height: 54px; font-size: 26px; border-radius: var(--zc-radius); }
.zc-icon-tile-sm { width: 36px; height: 36px; font-size: 17px; border-radius: 9px; }

.zc-title-sm { font-size: 15px; font-weight: 700; color: var(--zc-ink); }
.zc-desc-sm { font-size: 13px; color: var(--zc-muted); line-height: 1.6; }
.zc-clamp-1 { display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }
.zc-clamp-2 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.zc-clamp-3 { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

/* ============================================================
 * 8. 标签 / 徽章 / 排名
 * ============================================================ */
.zc-tag {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 10px; border-radius: var(--zc-radius-pill);
  background: var(--zc-paper-2); color: var(--zc-muted);
  font-size: 12px; font-weight: 600; line-height: 1.6; white-space: nowrap;
}
.zc-tag-primary { background: var(--zc-primary-soft); color: var(--zc-primary); }
.zc-tag-success { background: var(--zc-success-soft); color: var(--zc-success); }
.zc-tag-warn { background: var(--zc-warn-soft); color: var(--zc-warn); }
.zc-tag-danger { background: var(--zc-danger-soft); color: var(--zc-danger); }
.zc-tag-info { background: var(--zc-info-soft); color: var(--zc-info); }
.zc-tag-dark { background: rgba(255, 255, 255, .10); color: var(--zc-dark-ink); }

.zc-badge {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 20px; height: 20px; padding: 0 6px; border-radius: var(--zc-radius-pill);
  background: var(--zc-accent); color: #fff; font-size: 11px; font-weight: 700; font-family: var(--zc-mono);
}
.zc-badge-soft { display: inline-flex; align-items: center; gap: 5px; padding: 3px 9px; border-radius: var(--zc-radius-pill); background: var(--zc-paper-2); color: var(--zc-muted); font-size: 11.5px; font-weight: 600; }

.zc-rank {
  position: absolute; top: 0; left: 0;
  width: 30px; height: 30px; display: flex; align-items: center; justify-content: center;
  border-radius: var(--zc-radius) 0 var(--zc-radius) 0;
  background: var(--zc-paper-2); color: var(--zc-muted);
  font-family: var(--zc-mono); font-size: 13px; font-weight: 700;
}
.zc-rank.r1 { background: linear-gradient(140deg, #F59E0B, #D97706); color: #fff; }
.zc-rank.r2 { background: linear-gradient(140deg, #94A3B8, #64748B); color: #fff; }
.zc-rank.r3 { background: linear-gradient(140deg, #D08C60, #A9663D); color: #fff; }

/* ============================================================
 * 9. 表单与搜索
 * ============================================================ */
.zc-input, .zc-select, .zc-textarea {
  width: 100%; min-width: 0; min-height: 44px; padding: 10px 14px;
  background: #fff; border: 1px solid var(--zc-border-strong); border-radius: var(--zc-radius-sm);
  font-size: 14.5px; color: var(--zc-ink); outline: none;
  transition: border-color var(--zc-dur-fast) var(--zc-ease), box-shadow var(--zc-dur-fast) var(--zc-ease);
}
.zc-input::placeholder, .zc-textarea::placeholder { color: var(--zc-faint); }
.zc-input:focus, .zc-select:focus, .zc-textarea:focus { border-color: var(--zc-primary); box-shadow: 0 0 0 3px rgba(27, 58, 140, .12); }
.zc-field { display: block; }
.zc-label { display: block; margin-bottom: 6px; font-size: 13px; font-weight: 600; color: var(--zc-ink-2); }
.zc-hint { margin-top: 6px; font-size: 12px; color: var(--zc-muted); }

.zc-searchbox, .zc-searchpanel {
  position: relative; display: flex; align-items: center; gap: 8px;
  padding: 8px; background: #fff; border: 1px solid var(--zc-border-strong);
  border-radius: var(--zc-radius-lg); box-shadow: var(--zc-shadow-md); min-width: 0;
}
.zc-search-input, .zc-searchbox input {
  flex: 1 1 auto; min-width: 0; height: 46px; padding: 0 8px 0 40px;
  border: 0; outline: none; background: transparent; font-size: 15px; color: var(--zc-ink);
}
.zc-searchbox > i { position: absolute; left: 20px; color: var(--zc-faint); font-size: 19px; pointer-events: none; }
.zc-search-btn, .zc-searchbox button {
  flex-shrink: 0; min-height: 46px; padding: 0 26px; border: 0; border-radius: var(--zc-radius);
  background: var(--zc-primary); color: #fff; font-size: 15px; font-weight: 700;
  transition: background var(--zc-dur-fast) var(--zc-ease);
}
.zc-search-btn:hover, .zc-searchbox button:hover { background: var(--zc-primary-d); }
@media (max-width: 560px) {
  .zc-searchbox, .zc-searchpanel { flex-wrap: wrap; }
  .zc-search-btn, .zc-searchbox button { width: 100%; }
}

/* ============================================================
 * 10. 页面头部与区块标题（兼容旧类）
 * ============================================================ */
.zc-section-head, .zc-sec-head { max-width: var(--zc-maxw); margin: 0 auto 18px; padding: 0 var(--zc-gutter); }
.zc-section-head h2, .zc-sec-head h2 { font-size: clamp(1.2rem, 2.2vw, 1.5rem); }
.zc-section-head p, .zc-sec-head p { margin-top: 5px; font-size: 13.5px; color: var(--zc-muted); }

.zc-sec-title { display: flex; align-items: center; gap: 9px; margin: 0 0 14px; font-size: 1.06rem; font-weight: 800; color: var(--zc-ink); }
.zc-sec-title i { font-size: 19px; color: var(--zc-primary); }

.zc-crumb { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; font-size: 13px; color: var(--zc-muted); }
.zc-crumb a { color: var(--zc-muted); }
.zc-crumb a:hover { color: var(--zc-primary); }
.zc-crumb i { color: var(--zc-faint); font-size: 14px; }
.zc-crumb [aria-current="page"] { color: var(--zc-ink); font-weight: 600; }

.zc-more, .zc-sec-more { position: relative; display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: var(--zc-primary); }
/* 触控热区扩展：用伪元素纵向撑开点击范围，不影响布局与滚动宽度（禁止负 margin / 水平外扩） */
.zc-more::after, .zc-sec-more::after { content: ""; position: absolute; inset: -12px 0; }
.zc-more:hover, .zc-sec-more:hover { gap: 10px; }
.zc-res-foot .zc-more { flex: 0 0 auto; white-space: nowrap; }

.zc-diamond { width: 8px; height: 8px; background: var(--zc-primary); transform: rotate(45deg); border-radius: 2px; flex-shrink: 0; }

/* ============================================================
 * 11. 首页 · Hero（左对齐双栏 + 数据面板）
 * ============================================================ */
.zc-hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(900px 380px at 88% -10%, rgba(27, 58, 140, .10), transparent 62%),
    radial-gradient(600px 300px at 4% 8%, rgba(217, 119, 6, .06), transparent 60%),
    linear-gradient(180deg, #FFFFFF 0%, var(--zc-paper) 100%);
  border-bottom: 1px solid var(--zc-border);
}
.zc-hero-grid-bg, .zc-grid-bg {
  position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image: linear-gradient(rgba(27, 58, 140, .045) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(27, 58, 140, .045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), transparent 78%);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), transparent 78%);
}
.zc-hero-inner {
  position: relative; max-width: var(--zc-maxw); margin: 0 auto;
  padding: 44px var(--zc-gutter) 40px;
  display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: 36px; align-items: center;
}
.zc-hero-title { margin-bottom: 12px; letter-spacing: -.02em; }
.zc-hero-sub { font-size: 15.5px; color: var(--zc-muted); max-width: 44ch; }
.zc-grad-text {
  background: linear-gradient(100deg, var(--zc-primary) 10%, #2F63D8 55%, var(--zc-accent) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent; -webkit-text-fill-color: transparent;
}
.zc-hero-search { position: relative; margin: 22px 0 14px; max-width: 560px; }
.zc-hero-search > i { position: absolute; left: 20px; top: 50%; transform: translateY(-50%); color: var(--zc-faint); font-size: 20px; pointer-events: none; }
.zc-hero-search input {
  width: 100%; min-width: 0; height: 56px; padding: 0 132px 0 50px;
  background: #fff; border: 1px solid var(--zc-border-strong); border-radius: var(--zc-radius-lg);
  font-size: 15.5px; outline: none; box-shadow: var(--zc-shadow-md);
  transition: border-color var(--zc-dur-fast) var(--zc-ease), box-shadow var(--zc-dur-fast) var(--zc-ease);
}
.zc-hero-search input:focus { border-color: var(--zc-primary); box-shadow: 0 0 0 4px rgba(27, 58, 140, .12), var(--zc-shadow-md); }
.zc-hero-search button {
  position: absolute; right: 7px; top: 7px; bottom: 7px; padding: 0 26px;
  border: 0; border-radius: var(--zc-radius); background: var(--zc-primary); color: #fff;
  font-size: 15px; font-weight: 700; transition: background var(--zc-dur-fast) var(--zc-ease);
}
.zc-hero-search button:hover { background: var(--zc-primary-d); }
@media (max-width: 560px) {
  .zc-hero-search input { height: 50px; padding: 0 18px 0 44px; }
  .zc-hero-search > i { left: 16px; }
  .zc-hero-search button { position: static; width: 100%; margin-top: 10px; height: 46px; }
}

.zc-road-sign {
  display: inline-flex; align-items: baseline; gap: 7px;
  padding: 5px 14px; border-radius: var(--zc-radius-pill);
  background: var(--zc-primary-soft); border: 1px solid var(--zc-primary-line);
  color: var(--zc-primary-d); font-weight: 800; font-size: 13px; letter-spacing: .04em;
}
.zc-road-sign small { font-size: 10px; letter-spacing: .22em; color: var(--zc-primary); opacity: .8; font-weight: 700; }
.zc-road { display: inline-flex; align-items: center; gap: 8px; color: var(--zc-muted); font-size: 13px; }

.zc-hotwords { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 4px; }
.zc-hotwords > span { font-size: 13px; color: var(--zc-muted); }
.zc-chips { display: flex; flex-wrap: wrap; gap: 8px; min-width: 0; }
.zc-chip {
  min-height: 34px; padding: 0 14px; border-radius: var(--zc-radius-pill);
  background: #fff; border: 1px solid var(--zc-border); color: var(--zc-ink-2);
  font-size: 13px; font-weight: 500; cursor: pointer;
  transition: all var(--zc-dur-fast) var(--zc-ease);
}
.zc-chip:hover { border-color: var(--zc-primary-line); background: var(--zc-primary-soft); color: var(--zc-primary); transform: translateY(-1px); }
.zc-chip[aria-pressed="true"], .zc-chip.is-active { background: var(--zc-primary); border-color: var(--zc-primary); color: #fff; }
.zc-chip[aria-pressed="true"]:hover, .zc-chip.is-active:hover { background: var(--zc-primary-d); color: #fff; }

/* 搜索关键词高亮 */
mark { padding: 0 3px; border-radius: 4px; background: var(--zc-warn-soft); color: var(--zc-warn); font-weight: 700; }
[hidden] { display: none !important; }

.zc-hero-panel { background: #fff; border: 1px solid var(--zc-border); border-radius: var(--zc-radius-lg); box-shadow: var(--zc-shadow-lg); padding: 22px; }
.zc-hero-panel-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; }
.zc-live { display: inline-flex; align-items: center; gap: 7px; font-size: 12px; font-weight: 700; color: var(--zc-success); }
.zc-live::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--zc-success); box-shadow: 0 0 0 0 rgba(4, 120, 87, .5); animation: zcPulse 2.2s infinite; }
@keyframes zcPulse {
  0% { box-shadow: 0 0 0 0 rgba(4, 120, 87, .45); }
  70% { box-shadow: 0 0 0 9px rgba(4, 120, 87, 0); }
  100% { box-shadow: 0 0 0 0 rgba(4, 120, 87, 0); }
}
.zc-stats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.zc-stat { padding: 14px; border-radius: var(--zc-radius-sm); background: var(--zc-card-2); border: 1px solid var(--zc-border); }
.zc-stat b { display: block; font-family: var(--zc-mono); font-size: 26px; font-weight: 700; color: var(--zc-primary); line-height: 1.15; letter-spacing: -.02em; }
.zc-stat span { display: block; margin-top: 3px; font-size: 12.5px; color: var(--zc-muted); }
.zc-stat-dark { background: var(--zc-dark); border-color: var(--zc-dark-line); }
.zc-stat-dark b { color: #fff; }
.zc-stat-dark span { color: var(--zc-dark-muted); }

.zc-hero-panel-list { margin-top: 16px; padding-top: 14px; border-top: 1px dashed var(--zc-border-strong); display: grid; gap: 9px; }
.zc-hero-panel-list a { display: flex; align-items: center; gap: 10px; min-width: 0; font-size: 13.5px; color: var(--zc-ink-2); }
.zc-hero-panel-list a:hover { color: var(--zc-primary); }
.zc-hero-panel-list i { color: var(--zc-primary); font-size: 16px; flex-shrink: 0; }
.zc-hero-panel-list span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.zc-hero-panel-list em { margin-left: auto; font-style: normal; font-size: 12px; color: var(--zc-faint); font-family: var(--zc-mono); flex-shrink: 0; }

@media (max-width: 900px) { .zc-hero-inner { grid-template-columns: minmax(0, 1fr); gap: 26px; padding-top: 32px; } }

/* ============================================================
 * 12. 首页 · Bento 磁贴墙 + 编辑精选 + 时间轴 + 榜单
 * ============================================================ */
.zc-bento { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 14px; }
.zc-bento-item {
  position: relative; grid-column: span 2;
  display: flex; flex-direction: column; gap: 10px;
  padding: 20px; border-radius: var(--zc-radius-lg);
  background: #fff; border: 1px solid var(--zc-border); box-shadow: var(--zc-shadow-sm);
  overflow: hidden; min-width: 0;
  transition: transform var(--zc-dur) var(--zc-ease), box-shadow var(--zc-dur) var(--zc-ease), border-color var(--zc-dur) var(--zc-ease);
}
.zc-bento-item:hover { transform: translateY(-3px); box-shadow: var(--zc-shadow-md); border-color: var(--zc-primary-line); }
.zc-bento-item.zc-span-3 { grid-column: span 3; }
.zc-bento-item.zc-span-4 { grid-column: span 4; }
.zc-bento-item.zc-span-6 { grid-column: span 6; }
.zc-bento-head { display: flex; align-items: center; gap: 11px; min-width: 0; }
.zc-bento-head h3 { font-size: 1.02rem; }
.zc-bento-item p { font-size: 13px; color: var(--zc-muted); }
.zc-bento-links { display: flex; flex-wrap: wrap; gap: 7px; margin-top: auto; min-width: 0; }
.zc-bento-links a {
  max-width: 100%; padding: 5px 11px; border-radius: var(--zc-radius-pill);
  background: var(--zc-card-2); border: 1px solid var(--zc-border);
  font-size: 12.5px; color: var(--zc-ink-2);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  transition: all var(--zc-dur-fast) var(--zc-ease);
}
.zc-bento-links a:hover { background: var(--zc-primary-soft); border-color: var(--zc-primary-line); color: var(--zc-primary); }
.zc-bento-links a.hot { background: var(--zc-warn-soft); border-color: #F3D9B5; color: var(--zc-warn); }
.zc-bento-count {
  position: absolute; top: 16px; right: 18px;
  font-family: var(--zc-mono); font-size: 34px; font-weight: 700; line-height: 1;
  color: var(--zc-primary-soft); letter-spacing: -.03em; pointer-events: none; user-select: none;
}
.zc-bento-item.zc-feature { background: linear-gradient(150deg, var(--zc-primary) 0%, var(--zc-primary-d) 100%); border-color: transparent; color: #fff; }
.zc-bento-item.zc-feature h3, .zc-bento-item.zc-feature p { color: #fff; }
.zc-bento-item.zc-feature p { color: rgba(255, 255, 255, .82); }
.zc-bento-item.zc-feature .zc-bento-count { color: rgba(255, 255, 255, .16); }
.zc-bento-item.zc-feature .zc-icon-tile { background: rgba(255, 255, 255, .16); color: #fff; }
.zc-bento-item.zc-feature .zc-bento-links a { background: rgba(255, 255, 255, .12); border-color: rgba(255, 255, 255, .18); color: #fff; }
.zc-bento-item.zc-feature .zc-bento-links a:hover { background: rgba(255, 255, 255, .22); color: #fff; }
@media (max-width: 1000px) {
  .zc-bento { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .zc-bento-item, .zc-bento-item.zc-span-3, .zc-bento-item.zc-span-4, .zc-bento-item.zc-span-6 { grid-column: span 2; }
}
@media (max-width: 620px) {
  .zc-bento { grid-template-columns: minmax(0, 1fr); }
  .zc-bento-item { grid-column: span 1 !important; }
}

.zc-picks { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.zc-pick {
  display: flex; flex-direction: column; overflow: hidden; min-width: 0;
  background: #fff; border: 1px solid var(--zc-border); border-radius: var(--zc-radius-lg);
  box-shadow: var(--zc-shadow-sm);
  transition: transform var(--zc-dur) var(--zc-ease), box-shadow var(--zc-dur) var(--zc-ease), border-color var(--zc-dur) var(--zc-ease);
}
.zc-pick:hover { transform: translateY(-3px); box-shadow: var(--zc-shadow-md); border-color: var(--zc-primary-line); }
.zc-pick-cover {
  position: relative; height: 116px; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(140deg, var(--zc-primary-soft), #DCE6F8 60%, #F3E4CE);
  color: var(--zc-primary); font-size: 40px;
}
.zc-pick-cover .zc-tag { position: absolute; top: 12px; left: 12px; background: rgba(255, 255, 255, .92); color: var(--zc-primary-d); }
.zc-pick-body { display: flex; flex-direction: column; gap: 8px; padding: 16px 18px 18px; flex: 1; min-width: 0; }
.zc-pick-body h3 { font-size: 1rem; }
.zc-pick-body p { font-size: 13px; color: var(--zc-muted); }
.zc-pick-foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: auto; padding-top: 12px; border-top: 1px dashed var(--zc-border); font-size: 12.5px; color: var(--zc-faint); }
@media (max-width: 900px) { .zc-picks { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .zc-picks { grid-template-columns: minmax(0, 1fr); } }

.zc-timeline { display: grid; gap: 2px; }
.zc-timeline-item {
  position: relative; display: flex; align-items: center; gap: 14px;
  padding: 13px 16px 13px 20px; border-radius: var(--zc-radius-sm);
  border-left: 2px solid var(--zc-border); min-width: 0;
  transition: background var(--zc-dur-fast) var(--zc-ease), border-color var(--zc-dur-fast) var(--zc-ease);
}
.zc-timeline-item:hover { background: #fff; border-left-color: var(--zc-primary); }
.zc-timeline-item::before {
  content: ""; position: absolute; left: -5px; top: 50%; transform: translateY(-50%);
  width: 8px; height: 8px; border-radius: 50%; background: var(--zc-border-strong); border: 2px solid var(--zc-paper);
}
.zc-timeline-item:hover::before { background: var(--zc-primary); }
.zc-timeline-date { flex-shrink: 0; width: 74px; font-family: var(--zc-mono); font-size: 12.5px; color: var(--zc-faint); }
.zc-timeline-title { flex: 1; min-width: 0; font-size: 14.5px; font-weight: 600; color: var(--zc-ink); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.zc-timeline-meta { flex-shrink: 0; font-size: 12.5px; color: var(--zc-muted); }
@media (max-width: 620px) {
  .zc-timeline-item { flex-wrap: wrap; gap: 6px 10px; }
  .zc-timeline-title { flex-basis: 100%; white-space: normal; }
}

.zc-ranklist { background: #fff; border: 1px solid var(--zc-border); border-radius: var(--zc-radius-lg); overflow: hidden; box-shadow: var(--zc-shadow-sm); }
.zc-ranklist-row { display: flex; align-items: center; gap: 14px; padding: 13px 18px; border-bottom: 1px solid var(--zc-border); min-width: 0; transition: background var(--zc-dur-fast) var(--zc-ease); }
.zc-ranklist-row:last-child { border-bottom: 0; }
.zc-ranklist-row:hover { background: var(--zc-card-2); }
.zc-ranklist-no { flex-shrink: 0; width: 24px; font-family: var(--zc-mono); font-size: 14px; font-weight: 700; color: var(--zc-faint); text-align: center; }
.zc-ranklist-row:nth-child(1) .zc-ranklist-no { color: #D97706; }
.zc-ranklist-row:nth-child(2) .zc-ranklist-no { color: #64748B; }
.zc-ranklist-row:nth-child(3) .zc-ranklist-no { color: #A9663D; }
.zc-ranklist-title { flex: 1; min-width: 0; font-size: 14.5px; font-weight: 600; color: var(--zc-ink); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.zc-ranklist-cat { flex-shrink: 0; }
.zc-ranklist-dl { flex-shrink: 0; font-family: var(--zc-mono); font-size: 13px; color: var(--zc-muted); }
@media (max-width: 620px) { .zc-ranklist-cat { display: none; } .zc-ranklist-dl { font-size: 12px; } }

.zc-hot-card { display: flex; flex-direction: column; gap: 10px; padding-top: 22px; }
.zc-hot-card h3 { font-size: .98rem; }
.zc-hot-card p { font-size: 13px; color: var(--zc-muted); }
.zc-hot-meta { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: auto; padding-top: 12px; border-top: 1px dashed var(--zc-border); font-size: 12.5px; color: var(--zc-muted); }
.zc-hot-meta b { font-family: var(--zc-mono); color: var(--zc-ink); }

/* ============================================================
 * 13. 信任条 / 为什么选择
 * ============================================================ */
.zc-why { background: var(--zc-card-2); border-top: 1px solid var(--zc-border); border-bottom: 1px solid var(--zc-border); }
.zc-why-card { display: flex; align-items: flex-start; gap: 14px; height: 100%; }
.zc-why-card h3 { font-size: .98rem; margin-bottom: 5px; }
.zc-why-card p { font-size: 13px; color: var(--zc-muted); }

.zc-trust { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.zc-trust-item { display: flex; align-items: center; gap: 12px; padding: 16px; border-radius: var(--zc-radius); background: #fff; border: 1px solid var(--zc-border); min-width: 0; }
.zc-trust-item b { display: block; font-size: 13.5px; color: var(--zc-ink); }
.zc-trust-item span { font-size: 12.5px; color: var(--zc-muted); }
@media (max-width: 900px) { .zc-trust { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .zc-trust { grid-template-columns: minmax(0, 1fr); } }

/* ============================================================
 * 14. 分类页 / 子分类页 / 列表
 * ============================================================ */
.zc-page-hero, .zc-detail-hero, .zc-sub-hero, .zc-item-hero {
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  padding: 22px 24px; margin-bottom: 26px;
  border-radius: var(--zc-radius-lg); color: #fff;
  background: linear-gradient(140deg, var(--zc-primary) 0%, var(--zc-primary-d) 100%);
  box-shadow: var(--zc-shadow-md);
}
.zc-page-hero h1, .zc-detail-hero h1, .zc-sub-hero h1, .zc-item-hero h1 { color: #fff; font-size: clamp(1.3rem, 2.6vw, 1.7rem); }
.zc-page-hero p, .zc-detail-hero p, .zc-sub-hero p, .zc-item-hero p { margin-top: 5px; font-size: 13.5px; color: #EEF3FF; max-width: 62ch; }
.zc-page-hero .zc-icon-tile, .zc-detail-hero .zc-icon-tile, .zc-sub-hero .zc-icon-tile, .zc-item-hero .zc-icon-tile { background: rgba(255, 255, 255, .16); color: #fff; }
.zc-page-stats { display: flex; gap: 22px; margin-left: auto; flex-wrap: wrap; }
.zc-page-stats > div { text-align: right; }
.zc-page-stats b { display: block; font-family: var(--zc-mono); font-size: 22px; font-weight: 700; line-height: 1.2; }
.zc-page-stats span { font-size: 12px; color: #DCE5FA; }
@media (max-width: 640px) { .zc-page-stats { margin-left: 0; width: 100%; } .zc-page-stats > div { text-align: left; } }

.zc-ph-emerald { background: linear-gradient(140deg, #047857, #065F46); }
.zc-ph-orange { background: linear-gradient(140deg, #C2410C, #9A3412); }
.zc-ph-violet { background: linear-gradient(140deg, #6D28D9, #5B21B6); }
.zc-ph-pink { background: linear-gradient(140deg, #BE185D, #9D174D); }
.zc-ph-blue { background: linear-gradient(140deg, var(--zc-primary), var(--zc-primary-d)); }

.zc-sub-hero { display: flex; align-items: center; gap: 16px; }
.zc-sub-tile { width: 56px; height: 56px; flex-shrink: 0; border-radius: 14px; font-size: 26px; display: flex; align-items: center; justify-content: center; background: rgba(255, 255, 255, .18); color: #fff; }
.zc-sub-img img { width: 148px; height: 96px; object-fit: cover; border-radius: 10px; border: 2px solid rgba(255, 255, 255, .35); }
.zc-sub-count { margin-left: auto; text-align: right; }
.zc-sub-count b { font-family: var(--zc-mono); font-size: 22px; font-weight: 700; display: block; line-height: 1.15; }
.zc-sub-count span { font-size: 12px; color: rgba(255, 255, 255, .78); }

.zc-layout-side { display: flex; gap: 26px; align-items: flex-start; }
.zc-sidebar { flex: 0 0 232px; position: sticky; top: calc(var(--zc-header-h) + 16px); }
.zc-sidebar-card { background: #fff; border: 1px solid var(--zc-border); border-radius: var(--zc-radius); padding: 16px; box-shadow: var(--zc-shadow-sm); }
.zc-sidebar-card h3 { padding: 0 6px 10px; font-size: .95rem; border-bottom: 1px solid var(--zc-border); margin-bottom: 10px; }
.zc-sidebar-item, .sidebar-item {
  display: flex; align-items: center; gap: 8px; min-width: 0;
  padding: 9px 10px; border-radius: var(--zc-radius-sm);
  font-size: 13.5px; color: var(--zc-ink-2);
  border-left: 3px solid transparent;
  transition: all var(--zc-dur-fast) var(--zc-ease);
}
.zc-sidebar-item:hover, .sidebar-item:hover { background: var(--zc-paper-2); border-left-color: var(--zc-primary); color: var(--zc-primary); }
.zc-sidebar-item.is-active, .sidebar-item.is-active { background: var(--zc-primary-soft); border-left-color: var(--zc-primary); color: var(--zc-primary); font-weight: 700; }
.zc-sidebar-item i, .sidebar-item i { flex-shrink: 0; }
.zc-sidebar-item .count, .sidebar-item .count { margin-left: auto; font-family: var(--zc-mono); font-size: 12px; color: var(--zc-faint); }
@media (max-width: 1000px) {
  .zc-layout-side { flex-direction: column; }
  .zc-sidebar { position: static; flex-basis: auto; width: 100%; }
  .zc-sidebar-card { padding: 12px; }
}

.zc-res-card { display: flex; flex-direction: column; gap: 10px; padding: 18px; min-width: 0; }
.zc-res-card-head { display: flex; align-items: flex-start; gap: 12px; min-width: 0; }
.zc-res-card h3, .zc-res-card .zc-res-title { font-size: .97rem; font-weight: 700; min-width: 0; }
.zc-res-card h3 a, .zc-res-title a { color: var(--zc-ink); }
.zc-res-card h3 a:hover, .zc-res-title a:hover { color: var(--zc-primary); }
.zc-res-foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; margin-top: auto; padding-top: 12px; border-top: 1px dashed var(--zc-border); font-size: 12.5px; color: var(--zc-muted); }
.zc-res-foot > span { display: inline-flex; align-items: center; gap: 5px; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ============================================================
 * 15. 详情页组件
 * ============================================================ */
.zc-detail-icon { width: 60px; height: 60px; flex-shrink: 0; border-radius: var(--zc-radius); display: flex; align-items: center; justify-content: center; background: rgba(255, 255, 255, .16); color: #fff; font-size: 28px; }
.zc-meta-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.zc-meta-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 12px; border-radius: var(--zc-radius-pill);
  background: #fff; border: 1px solid var(--zc-border);
  font-size: 12.5px; font-weight: 600; color: var(--zc-ink-2);
  max-width: 100%;
}
.zc-meta-chip i { color: var(--zc-primary); font-size: 14px; flex-shrink: 0; }
.zc-meta-chip b, .zc-meta-chip .zc-num { font-family: var(--zc-mono); }

.zc-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.zc-cta-panel { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; padding: 16px; margin-top: 16px; background: var(--zc-card-2); border: 1px dashed var(--zc-border-strong); border-radius: var(--zc-radius); }
.zc-cta-panel p { flex: 1; min-width: 220px; font-size: 13px; color: var(--zc-muted); }
.zc-newbie-hook { display: inline-flex; align-items: center; gap: 7px; font-size: 13px; color: var(--zc-success); font-weight: 600; }

.zc-item-link, .zc-article {
  display: flex; align-items: center; gap: 14px; padding: 14px 16px;
  background: #fff; border: 1px solid var(--zc-border); border-radius: var(--zc-radius-sm);
  min-width: 0;
  transition: border-color var(--zc-dur-fast) var(--zc-ease), box-shadow var(--zc-dur-fast) var(--zc-ease), transform var(--zc-dur-fast) var(--zc-ease);
}
.zc-item-link:hover { border-color: var(--zc-primary-line); box-shadow: var(--zc-shadow-sm); transform: translateX(2px); }
.zc-item-no { flex-shrink: 0; width: 40px; height: 40px; border-radius: 10px; background: var(--zc-primary-soft); color: var(--zc-primary); display: flex; align-items: center; justify-content: center; font-family: var(--zc-mono); font-size: 14px; font-weight: 700; }
.zc-item-main { flex: 1; min-width: 0; }
.zc-item-title { font-size: 14.5px; font-weight: 600; color: var(--zc-ink); overflow-wrap: break-word; }
.zc-item-meta { margin-top: 3px; font-size: 12.5px; color: var(--zc-muted); display: flex; flex-wrap: wrap; gap: 4px 12px; }
.zc-item-actions { flex-shrink: 0; display: flex; align-items: center; gap: 8px; }
@media (max-width: 620px) {
  .zc-item-link, .zc-article { flex-wrap: wrap; }
  .zc-item-actions { width: 100%; }
  .zc-item-actions .zc-btn-primary, .zc-item-actions .zc-btn-ghost { flex: 1; }
}

.zc-prose { max-width: 78ch; }
.zc-prose h2 { margin: 28px 0 10px; font-size: 1.15rem; }
.zc-prose h3 { margin: 20px 0 8px; font-size: 1rem; }
.zc-prose p { margin: 10px 0; font-size: 14.5px; color: var(--zc-ink-2); }
.zc-prose li { margin: 6px 0; font-size: 14.5px; color: var(--zc-ink-2); padding-left: 18px; position: relative; }
.zc-prose li::before { content: ""; position: absolute; left: 4px; top: .68em; width: 5px; height: 5px; border-radius: 50%; background: var(--zc-primary-line); }
.zc-prose strong { color: var(--zc-ink); }

/* ============================================================
 * 16. 页脚（V4：深墨蓝底，对比度达标）
 * ============================================================ */
.zc-footer, footer.zc-footer {
  margin-top: 48px; padding: 40px 0 26px;
  background: var(--zc-dark); color: var(--zc-dark-muted);
}
.zc-footer a { color: var(--zc-dark-muted); }
.zc-footer a:hover { color: #fff; }
.zc-footer-main {
  max-width: var(--zc-maxw); margin: 0 auto; padding: 0 var(--zc-gutter);
  display: grid; grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr)); gap: 32px;
}
.zc-footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.zc-footer-brand .zc-brand-mark { box-shadow: none; background: rgba(255, 255, 255, .12); }
.zc-footer-brand .zc-brand-name { color: #fff; }
.zc-footer-brand .zc-brand-sub { color: var(--zc-dark-muted); }
.zc-footer p { font-size: 13px; line-height: 1.75; }
.zc-footer h4 { margin-bottom: 12px; font-size: 13.5px; font-weight: 700; color: #fff; letter-spacing: .01em; }
.zc-footer-links { display: grid; gap: 8px; }
.zc-footer-links a { font-size: 13.5px; }
.zc-footer-links a:hover { color: #fff; }
.zc-footer-contact { display: grid; gap: 9px; }
.zc-footer-contact div { display: flex; align-items: center; gap: 8px; font-size: 13px; min-width: 0; }
.zc-footer-contact i { color: #7E93BE; font-size: 15px; flex-shrink: 0; }
.zc-footer-contact span { overflow-wrap: anywhere; }
.zc-footer-bottom {
  max-width: var(--zc-maxw); margin: 26px auto 0; padding: 18px var(--zc-gutter) 0;
  border-top: 1px solid var(--zc-dark-line);
  display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  font-size: 12.5px; color: #8EA0C4;
}
.zc-footer-bottom nav { display: flex; flex-wrap: wrap; gap: 16px; }
.zc-footer .zc-beian { max-width: var(--zc-maxw); margin: 12px auto 0; padding: 0 var(--zc-gutter); font-size: 12.5px; color: #8EA0C4; text-align: center; }
.zc-footer .zc-beian a { color: #8EA0C4; }
.zc-footer .zc-beian a:hover { color: #fff; }
.zc-footer .zc-contact { max-width: var(--zc-maxw); margin: 0 auto; padding: 0 var(--zc-gutter) 18px; }
.zc-body-contact { max-width: var(--zc-maxw); margin: 0 auto; padding: 0 var(--zc-gutter) 20px; }
@media (max-width: 900px) { .zc-footer-main { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; } }
@media (max-width: 560px) { .zc-footer-main { grid-template-columns: minmax(0, 1fr); } }

.zc-contact-inner { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; padding: 14px 0; border-bottom: 1px solid var(--zc-dark-line); }
.zc-contact-item { display: flex; align-items: center; gap: 9px; padding: 8px 13px; border-radius: var(--zc-radius-sm); background: rgba(255, 255, 255, .06); border: 1px solid var(--zc-dark-line); font-size: 13px; color: var(--zc-dark-muted); max-width: 100%; }
.zc-contact-item i { color: #9FB0D0; font-size: 16px; flex-shrink: 0; }
.zc-contact-item b { color: #fff; font-family: var(--zc-mono); letter-spacing: .3px; }
.zc-copy { padding: 4px 10px; border-radius: 7px; background: transparent; border: 1px solid var(--zc-dark-line); color: var(--zc-dark-muted); font-size: 12px; cursor: pointer; transition: all var(--zc-dur-fast) var(--zc-ease); }
.zc-copy:hover { color: #fff; border-color: #7E93BE; }
.zc-copy.ok { color: #6EE7B7; border-color: #6EE7B7; }
.zc-qr img { width: 64px; height: 64px; object-fit: cover; border-radius: 8px; border: 1px solid var(--zc-dark-line); }

/* ============================================================
 * 17. 浮层：返回顶部 / 收藏 FAB / Toast / 弹层
 * ============================================================ */
.zc-back-top, #backToTop {
  position: fixed; right: 22px; bottom: 86px; z-index: 70;
  width: 44px; height: 44px; display: flex; align-items: center; justify-content: center;
  background: #fff; border: 1px solid var(--zc-border); border-radius: var(--zc-radius-sm);
  color: var(--zc-ink-2); font-size: 19px; box-shadow: var(--zc-shadow-md);
  transition: opacity var(--zc-dur) var(--zc-ease), visibility var(--zc-dur) var(--zc-ease), color var(--zc-dur-fast) var(--zc-ease), border-color var(--zc-dur-fast) var(--zc-ease);
}
.zc-back-top:hover, #backToTop:hover { color: var(--zc-primary); border-color: var(--zc-primary-line); }
@media (max-width: 560px) { .zc-back-top, #backToTop { right: 14px; bottom: 78px; } }

.zc-fav-fab {
  position: fixed; right: 22px; bottom: 24px; z-index: 70;
  display: inline-flex; align-items: center; gap: 7px;
  height: 44px; padding: 0 16px; border-radius: var(--zc-radius-pill);
  background: var(--zc-dark); color: #fff !important; font-size: 13.5px; font-weight: 600;
  box-shadow: var(--zc-shadow-lg);
  transition: transform var(--zc-dur-fast) var(--zc-ease), background var(--zc-dur-fast) var(--zc-ease);
}
.zc-fav-fab:hover { transform: translateY(-2px); background: var(--zc-dark-2); }
.zc-fav-fab i { font-size: 17px; color: #FCA5A5; }
.zc-fav-badge {
  position: absolute; top: -5px; right: -5px; min-width: 19px; height: 19px; padding: 0 5px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--zc-radius-pill); background: var(--zc-accent); color: #fff;
  font-family: var(--zc-mono); font-size: 11px; font-weight: 700;
}
.zc-fav-label { display: inline; }
@media (max-width: 560px) { .zc-fav-fab { right: 14px; bottom: 18px; } .zc-fav-label { display: none; } }

.zc-toast-host { position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%); z-index: 220; display: grid; gap: 10px; justify-items: center; pointer-events: none; }
.zc-toast {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 18px; border-radius: var(--zc-radius-pill);
  background: rgba(11, 21, 51, .96); color: #fff; font-size: 13.5px; font-weight: 500;
  box-shadow: var(--zc-shadow-lg); animation: zcToastIn var(--zc-dur) var(--zc-ease);
}
.zc-toast i { font-size: 16px; color: #6EE7B7; }
.zc-toast.zc-toast-warn i { color: #FCD34D; }
.zc-toast.zc-toast-danger i { color: #FCA5A5; }
@keyframes zcToastIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

.zc-modal-mask { position: fixed; inset: 0; z-index: 200; background: rgba(11, 21, 51, .55); backdrop-filter: blur(3px); display: flex; align-items: center; justify-content: center; padding: 20px; }
.zc-modal {
  width: 100%; max-width: 460px; max-height: 86vh; overflow-y: auto;
  background: #fff; border-radius: var(--zc-radius-lg); box-shadow: var(--zc-shadow-lg);
  padding: 24px; animation: zcModalIn var(--zc-dur) var(--zc-ease);
}
@keyframes zcModalIn { from { opacity: 0; transform: translateY(16px) scale(.98); } to { opacity: 1; transform: translateY(0) scale(1); } }
.zc-modal h3 { margin-bottom: 8px; font-size: 1.08rem; }
.zc-modal p { font-size: 13.5px; color: var(--zc-muted); }

.zc-pan-code { display: flex; align-items: center; gap: 10px; margin: 14px 0; padding: 12px 14px; background: var(--zc-card-2); border: 1px dashed var(--zc-border-strong); border-radius: var(--zc-radius-sm); }
.zc-pan-code b { font-family: var(--zc-mono); font-size: 18px; letter-spacing: .12em; color: var(--zc-primary); }

.zc-empty { text-align: center; padding: 52px 20px; color: var(--zc-muted); }
.zc-empty i { display: block; margin-bottom: 12px; font-size: 40px; color: var(--zc-border-strong); }
.zc-empty h3 { margin-bottom: 6px; font-size: 1.02rem; }
.zc-empty p { font-size: 13.5px; }

.zc-skeleton { position: relative; overflow: hidden; background: var(--zc-paper-2); border-radius: var(--zc-radius-sm); }
.zc-skeleton::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .8), transparent); animation: zcShimmer 1.4s infinite; }
@keyframes zcShimmer { from { transform: translateX(-100%); } to { transform: translateX(100%); } }
.zc-skeleton-line { height: 12px; margin-bottom: 8px; }
.zc-skeleton-line.short { width: 60%; }

/* ============================================================
 * 18. 入场动画与装饰
 * ============================================================ */
.zc-reveal { opacity: 0; transform: translateY(14px); transition: opacity var(--zc-dur-slow) var(--zc-ease), transform var(--zc-dur-slow) var(--zc-ease); will-change: opacity, transform; }
.zc-reveal.revealed, .zc-reveal.is-visible { opacity: 1; transform: none; }

.zc-blob { position: absolute; border-radius: 50%; filter: blur(48px); pointer-events: none; }
.zc-blob.b1 { width: 340px; height: 340px; background: rgba(27, 58, 140, .12); top: -120px; right: -80px; }
.zc-blob.b2 { width: 260px; height: 260px; background: rgba(217, 119, 6, .10); bottom: -110px; left: -60px; }

.zc-scroll-progress { position: fixed; top: 0; left: 0; height: 3px; width: 0; background: linear-gradient(90deg, var(--zc-primary), var(--zc-accent)); z-index: 80; transition: width 90ms linear; }

#zc-splash { position: fixed; inset: 0; z-index: 500; background: var(--zc-dark); overflow: hidden; }
#zc-splash .zc-splash-inner { position: relative; z-index: 2; max-width: 100%; padding: 0 20px; height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; color: #fff; }
#zc-splash .zc-splash-brand { font-size: clamp(1.8rem, 5vw, 2.6rem); font-weight: 800; letter-spacing: .06em; }
#zc-splash .zc-splash-tagline { margin-top: 10px; font-size: 14px; color: var(--zc-dark-muted); }
#zc-splash .zc-splash-glow { position: absolute; width: 100vw; height: 100vw; max-width: 640px; max-height: 640px; border-radius: 50%; background: radial-gradient(circle, rgba(47, 99, 216, .35), transparent 68%); top: 50%; left: 50%; transform: translate(-50%, -50%); }
#zc-splash .zc-splash-enter { margin-top: 26px; min-height: 46px; padding: 0 30px; border: 1px solid rgba(255, 255, 255, .3); border-radius: var(--zc-radius-pill); background: rgba(255, 255, 255, .1); color: #fff; font-size: 14.5px; font-weight: 600; }
#zc-splash .zc-splash-enter:hover { background: rgba(255, 255, 255, .2); }

/* ============================================================
 * 19. 兼容：旧版面板 / 画廊 / 灯箱
 * ============================================================ */
.zc-panels { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.zc-panel { padding: 18px; background: #fff; border: 1px solid var(--zc-border); border-radius: var(--zc-radius); box-shadow: var(--zc-shadow-sm); min-width: 0; transition: box-shadow var(--zc-dur) var(--zc-ease), border-color var(--zc-dur) var(--zc-ease); }
.zc-panel:hover { box-shadow: var(--zc-shadow-md); border-color: var(--zc-primary-line); }
.zc-panel-head { display: flex; align-items: center; gap: 9px; margin-bottom: 8px; min-width: 0; }
.zc-panel-head h3 { font-size: 1rem; }
.zc-panel-head .zc-count { margin-left: auto; font-family: var(--zc-mono); font-size: 12px; color: var(--zc-faint); flex-shrink: 0; }
.zc-panel-desc { font-size: 13px; color: var(--zc-muted); margin-bottom: 12px; }
.zc-panel-links { display: flex; flex-wrap: wrap; gap: 7px; min-width: 0; }
.zc-panel-links a { max-width: 100%; padding: 5px 11px; border-radius: var(--zc-radius-pill); background: var(--zc-card-2); border: 1px solid var(--zc-border); font-size: 12.5px; color: var(--zc-ink-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.zc-panel-links a:hover { background: var(--zc-primary-soft); border-color: var(--zc-primary-line); color: var(--zc-primary); }
.zc-panel-links a.hot { background: var(--zc-warn-soft); border-color: #F3D9B5; color: var(--zc-warn); }
@media (max-width: 900px) { .zc-panels { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .zc-panels { grid-template-columns: minmax(0, 1fr); } }

.zc-cat-card { display: flex; align-items: center; gap: 14px; padding: 18px; background: #fff; border: 1px solid var(--zc-border); border-radius: var(--zc-radius); box-shadow: var(--zc-shadow-sm); min-width: 0; transition: all var(--zc-dur) var(--zc-ease); }
.zc-cat-card:hover { transform: translateY(-2px); box-shadow: var(--zc-shadow-md); border-color: var(--zc-primary-line); }
.zc-cat-count { margin-left: auto; font-family: var(--zc-mono); font-size: 12.5px; color: var(--zc-faint); flex-shrink: 0; }
.zc-cat-study .zc-icon-tile { background: #E8EDF9; color: #1B3A8C; }
.zc-cat-office .zc-icon-tile { background: #E7F5EF; color: #047857; }
.zc-cat-design .zc-icon-tile { background: #F1EAFB; color: #6D28D9; }
.zc-cat-ai .zc-icon-tile { background: #E6F4F8; color: #0E7490; }
.zc-cat-other .zc-icon-tile { background: #FEF3E2; color: #B45309; }

.zc-gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 12px; }
.zc-lightbox { position: fixed; inset: 0; z-index: 210; background: rgba(11, 21, 51, .9); display: flex; align-items: center; justify-content: center; padding: 24px; }
.zc-lightbox img { max-width: 100%; max-height: 90vh; border-radius: var(--zc-radius); }

/* ============================================================
 * 19.5 图标兼容映射
 * 数据层（data.js，零改动）中有 6 个图标名在当前图标字体中不存在，
 * 会渲染成空白；此处映射到语义相近的既有字形，避免空白图标。
 * ============================================================ */
.ri-swim-line::before { content: "\f2b0"; }      /* → 水花 */
.ri-spa-line::before { content: "\eea3"; }       /* → 叶片 */
.ri-type-bold::before { content: "\ed8c"; }      /* → 字号 */
.ri-poster-line::before { content: "\ee45"; }    /* → 图片 */
.ri-magazine-line::before { content: "\ead3"; }  /* → 书册 */
.ri-widget-line::before { content: "\f3db"; }    /* → 形状 */

/* ============================================================
 * 20. 打印样式
 * ============================================================ */
@media print {
  #mainHeader, .zc-topbar, .zc-footer, #backToTop, .zc-fav-fab, .zc-back-top, .zc-actions, .zc-mobile-menu { display: none !important; }
  body { background: #fff; color: #000; }
  .zc-card, .zc-ranklist { box-shadow: none; border-color: #ccc; }
}