/*
 * 用户端公共样式（新版页面专用）
 * 规范：docs/product/frontend/visual.md（视觉）、interaction.md（交互）
 * 主题：<html data-scheme="neutral|warm">，由 layout/n_head 里的脚本在首屏前设置；默认 warm（美乐蒂品牌主题），neutral 为简约
 * 页面只用这里的变量和类名，不直接写色值。
 */

/* ========== 1. 主题变量 ========== */
:root {
  /* 简约（默认） */
  --nyfz-bg: #f5f5f3; --nyfz-surface: #ffffff; --nyfz-fill: #eeeeeb; --nyfz-fill-pressed: #e3e3df; --nyfz-divider: #ededea;
  --nyfz-mask: rgba(0, 0, 0, 0.45);
  --nyfz-text-strong: #141414; --nyfz-text: #333333; --nyfz-text-secondary: #666660;
  --nyfz-text-placeholder: #85857f; --nyfz-text-disabled: #b4b4ae; --nyfz-text-on-color: #ffffff;
  --nyfz-primary: #141414; --nyfz-primary-hover: #2b2b2b; --nyfz-primary-pressed: #000000; --nyfz-primary-key: transparent;
  --nyfz-link: #157066; --nyfz-primary-soft: #e3f1ee; --nyfz-primary-soft-pressed: #d0e8e3;
  --nyfz-accent: #19c8b9; --nyfz-highlight: #f2c94c; --nyfz-on-highlight: #3b2a12;
  --nyfz-success: #2a7230; --nyfz-success-soft: #e8f3e8; --nyfz-warning: #8a5d00; --nyfz-warning-soft: #fbf0d0;
  --nyfz-danger: #c62828; --nyfz-danger-soft: #fce8e6; --nyfz-danger-key: transparent; --nyfz-info: #3f51b5; --nyfz-info-soft: #e9ebf8;
  --nyfz-disabled-bg: #ececea;

  --nyfz-radius-xs: 8px; --nyfz-radius-sm: 12px; --nyfz-radius-md: 16px; --nyfz-radius-lg: 16px; --nyfz-radius-xl: 20px; --nyfz-radius-pill: 999px;
  --nyfz-btn-radius: 14px; --nyfz-btn-radius-s: 10px; --nyfz-field-radius: 14px; --nyfz-tile-radius: 12px;
  --nyfz-btn-key: none; --nyfz-btn-key-hover: none; --nyfz-btn-key-active: none;
  --nyfz-danger-btn-key: none; --nyfz-danger-btn-key-active: none;
  --nyfz-btn-press: scale(0.98); --nyfz-btn-hover: none;
  --nyfz-field-inset: none;

  --nyfz-shadow-soft: 0 1px 3px rgba(0, 0, 0, 0.08);
  --nyfz-shadow-float: 0 8px 24px rgba(0, 0, 0, 0.12);
  --nyfz-shadow-bar: 0 -1px 0 rgba(0, 0, 0, 0.06);
  --nyfz-shadow-top: 0 1px 0 rgba(0, 0, 0, 0.06);
  --nyfz-focus-ring: 0 0 0 2px var(--nyfz-surface), 0 0 0 4px var(--nyfz-primary);

  --nyfz-font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "PingFang SC", "HarmonyOS Sans SC", "MiSans",
               "Microsoft YaHei", sans-serif;

  --nyfz-space-1: 4px; --nyfz-space-2: 8px; --nyfz-space-3: 12px; --nyfz-space-4: 16px;
  --nyfz-space-5: 20px; --nyfz-space-6: 24px; --nyfz-space-8: 32px;
  --nyfz-gutter: 16px; --nyfz-topbar-h: 52px; --nyfz-tabbar-h: 58px; --nyfz-sidebar-w: 232px; --nyfz-content-max: 960px;

  /* 动效（interaction.md 第 2 节） */
  --nyfz-dur-press: 120ms; --nyfz-dur-release: 160ms; --nyfz-dur-switch: 200ms; --nyfz-dur-expand: 250ms;
  --nyfz-dur-sheet-in: 260ms; --nyfz-dur-sheet-out: 200ms;
  --nyfz-ease-standard: cubic-bezier(0.2, 0, 0, 1);
  --nyfz-ease-enter: cubic-bezier(0.05, 0.7, 0.1, 1);
  --nyfz-ease-exit: cubic-bezier(0.3, 0, 0.8, 0.15);
}
:root[data-scheme="warm"] {
  /* 美乐蒂品牌主题：奶油白底，深绿配金（取自品牌素材） */
  --nyfz-bg: #f6f1e7; --nyfz-surface: #fffdf8; --nyfz-fill: #efe8d8; --nyfz-fill-pressed: #e5dcc8; --nyfz-divider: #ece4d3;
  --nyfz-mask: rgba(10, 36, 30, 0.45);
  --nyfz-text-strong: #163a31; --nyfz-text: #2f463f; --nyfz-text-secondary: #5e6d66;
  --nyfz-text-placeholder: #86918b; --nyfz-text-disabled: #b5bcb6;
  --nyfz-primary: #0e5443; --nyfz-primary-hover: #13654f; --nyfz-primary-pressed: #0a4236; --nyfz-primary-key: #062f26;
  --nyfz-link: #0e5443; --nyfz-primary-soft: #e3efe7; --nyfz-primary-soft-pressed: #d2e6da;
  --nyfz-accent: #c9a25b; --nyfz-highlight: #e8c77a; --nyfz-on-highlight: #3f2d0e;
  --nyfz-success: #2e7a3a; --nyfz-success-soft: #e6f3e6; --nyfz-warning: #8a5d00; --nyfz-warning-soft: #fbefcc;
  --nyfz-danger: #c0392f; --nyfz-danger-soft: #fbe7e4; --nyfz-danger-key: #8f2a22; --nyfz-info: #24685a; --nyfz-info-soft: #e6f0ea;
  --nyfz-disabled-bg: #ebe5d6;

  --nyfz-radius-lg: 20px; --nyfz-radius-xl: 24px;
  --nyfz-btn-radius: 999px; --nyfz-btn-radius-s: 999px; --nyfz-field-radius: 16px; --nyfz-tile-radius: 16px;
  --nyfz-btn-key: 0 3px 0 var(--nyfz-primary-key); --nyfz-btn-key-hover: 0 4px 0 var(--nyfz-primary-key);
  --nyfz-btn-key-active: 0 1px 0 var(--nyfz-primary-key);
  --nyfz-danger-btn-key: 0 3px 0 var(--nyfz-danger-key); --nyfz-danger-btn-key-active: 0 1px 0 var(--nyfz-danger-key);
  --nyfz-btn-press: translateY(2px); --nyfz-btn-hover: translateY(-1px);
  --nyfz-field-inset: inset 0 2px 0 rgba(22, 58, 49, 0.05);

  --nyfz-shadow-soft: 0 2px 8px rgba(22, 58, 49, 0.07);
  --nyfz-shadow-float: 0 8px 24px rgba(22, 58, 49, 0.14);
  --nyfz-shadow-bar: 0 -2px 12px rgba(22, 58, 49, 0.06);
  --nyfz-shadow-top: 0 2px 10px rgba(22, 58, 49, 0.05);

  --nyfz-font: "Nunito", "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Hiragino Sans GB", "Microsoft YaHei",
               "Noto Sans SC", sans-serif;
}
@media (min-width: 768px) { :root { --nyfz-gutter: 24px; } }
@media (prefers-reduced-motion: reduce) {
  :root {
    --nyfz-dur-press: 0ms; --nyfz-dur-release: 0ms; --nyfz-dur-switch: 0ms; --nyfz-dur-expand: 0ms;
    --nyfz-dur-sheet-in: 100ms; --nyfz-dur-sheet-out: 100ms; --nyfz-btn-press: none; --nyfz-btn-hover: none;
  }
}

/* Nunito：只在暖色主题的字体栈里，简约主题下浏览器不会下载 */
@font-face {
  font-family: "Nunito";
  src: url("/static/index/font/Nunito-latin.woff2") format("woff2");
  font-weight: 400 900; font-style: normal; font-display: swap;
}

/* ========== 2. 基础 ========== */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body.n-app {
  margin: 0; min-height: 100vh; background: var(--nyfz-bg); color: var(--nyfz-text);
  font: 500 15px/22px var(--nyfz-font); letter-spacing: 0.01em; font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased; -webkit-tap-highlight-color: transparent;
}
body.n-app.is-locked { overflow: hidden; }
/*
 * 元素基础规则一律写成 :where(.n-app) …，优先级降到 0（只剩元素或伪类本身），
 * 组件类（.n-btn--primary、.n-tab、.n-list__row 等）设置的颜色、字体、边距才能直接生效，不需要 .n-app a.xxx 这类补丁。
 */
:where(.n-app) img { max-width: 100%; }
:where(.n-app) a { color: var(--nyfz-link); text-decoration: none; }
:where(.n-app) :where(h1, h2, h3, h4, p) { margin: 0; }
:where(.n-app) button { font: inherit; color: inherit; }
:where(.n-app) [hidden] { display: none !important; }
/* 通用焦点环只给可点的元素；输入框的聚焦效果由 .n-input / .n-search 的 :focus-within 负责，里面的控件不再多一圈 */
:where(.n-app) :where(a, button, summary, [tabindex]:not([tabindex="-1"])):focus { outline: none; }
:where(.n-app) :where(a, button, summary, [tabindex]:not([tabindex="-1"])):focus-visible { outline: none; box-shadow: var(--nyfz-focus-ring); border-radius: var(--nyfz-radius-xs); }
:where(.n-app) [tabindex="-1"]:focus { outline: none; } /* 脚本聚焦的容器（如弹层面板）不显示焦点环 */
.n-sr { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.n-tap { cursor: pointer; touch-action: manipulation; }
/* 只在手机端 / 只在电脑端显示（断点 768px，总纲第 3 节）。两端的功能入口必须一致，只用于同一功能的两种摆法 */
@media (min-width: 768px) { .n-mobile-only { display: none !important; } }
@media (max-width: 767.98px) { .n-desktop-only { display: none !important; } }

/* 文字层级（visual.md 2.2） */
.n-h-page { font-size: 20px; line-height: 28px; font-weight: 700; color: var(--nyfz-text-strong); letter-spacing: 0.02em; text-wrap: balance; }
.n-h-sec { font-size: 17px; line-height: 24px; font-weight: 700; color: var(--nyfz-text-strong); letter-spacing: 0.02em; }
.n-t-body { font-size: 15px; line-height: 22px; }
.n-t-long { font-size: 15px; line-height: 24px; font-weight: 400; }
.n-t-sub { font-size: 13px; line-height: 18px; color: var(--nyfz-text-secondary); }
.n-t-label { font-size: 12px; line-height: 16px; font-weight: 600; }
.n-t-strong { color: var(--nyfz-text-strong); font-weight: 700; }

/* 金额：数字 + 次要的单位（visual.md 2.2） */
.n-amount { font-weight: 800; color: var(--nyfz-text-strong); font-variant-numeric: tabular-nums; white-space: nowrap; }
.n-amount__unit { font-size: 13px; font-weight: 600; color: var(--nyfz-text-secondary); margin-left: 4px; }
.n-amount--xl { font-size: 32px; line-height: 40px; }
.n-amount--xl .n-amount__unit { font-size: 15px; }
.n-amount--l { font-size: 20px; line-height: 28px; }
.n-amount--in { color: var(--nyfz-link); }

/* ========== 3. 图标 ========== */
.n-i { width: 20px; height: 20px; flex: none; display: inline-block; vertical-align: middle; fill: currentColor; }
.n-i--24 { width: 24px; height: 24px; }
.n-i--18 { width: 18px; height: 18px; }
/* 功能图标位：两套主题都用单色线条图标；品牌主题用深绿图标配浅薄荷绿底块（visual.md 10.1） */
.n-fi { display: inline-grid; place-items: center; flex: none; color: var(--nyfz-text-strong); }
.n-fi > svg { width: var(--n-fi-size, 28px); height: var(--n-fi-size, 28px); }
.n-fi > .n-fi-n { width: calc(var(--n-fi-size, 28px) * 0.86); height: calc(var(--n-fi-size, 28px) * 0.86); fill: currentColor; }
.n-fi > .n-fi-w { display: none; }
.n-fi--tile { width: var(--n-tile, 44px); height: var(--n-tile, 44px); border-radius: var(--nyfz-tile-radius); background: var(--nyfz-fill); }
:root[data-scheme="warm"] .n-fi--tile { background: var(--nyfz-primary-soft); color: var(--nyfz-primary); }

/* ========== 4. 按钮（无边框，visual.md 第 5 节） ========== */
.n-btn {
  -webkit-appearance: none; appearance: none; border: 0; margin: 0; cursor: pointer; touch-action: manipulation;
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; white-space: nowrap; text-decoration: none;
  height: 40px; padding: 0 20px; border-radius: var(--nyfz-btn-radius);
  font: 700 15px/1 var(--nyfz-font); letter-spacing: 0.02em; background: var(--nyfz-fill); color: var(--nyfz-text-strong);
  transition: transform var(--nyfz-dur-release) var(--nyfz-ease-standard), box-shadow var(--nyfz-dur-release) var(--nyfz-ease-standard),
              background-color var(--nyfz-dur-release) var(--nyfz-ease-standard);
}
.n-btn:active:not([disabled]):not([aria-disabled="true"]) { transform: var(--nyfz-btn-press); transition-duration: var(--nyfz-dur-press); }
.n-btn:focus-visible { box-shadow: var(--nyfz-focus-ring); border-radius: var(--nyfz-btn-radius); }
.n-btn--l { height: 48px; font-size: 16px; padding: 0 24px; }
.n-btn--s { height: 32px; font-size: 13px; padding: 0 14px; border-radius: var(--nyfz-btn-radius-s); }
.n-btn--block { display: flex; width: 100%; }
.n-btn--primary { background: var(--nyfz-primary); color: var(--nyfz-text-on-color); box-shadow: var(--nyfz-btn-key); }
.n-btn--primary:active:not([disabled]) { background: var(--nyfz-primary-pressed); box-shadow: var(--nyfz-btn-key-active); }
.n-btn--danger { background: var(--nyfz-danger); color: var(--nyfz-text-on-color); box-shadow: var(--nyfz-danger-btn-key); }
.n-btn--danger:active:not([disabled]) { box-shadow: var(--nyfz-danger-btn-key-active); }
.n-btn--tonal { background: var(--nyfz-primary-soft); color: var(--nyfz-link); }
.n-btn--tonal:active { background: var(--nyfz-primary-soft-pressed); }
.n-btn--neutral:active { background: var(--nyfz-fill-pressed); }
.n-btn--danger-soft { background: var(--nyfz-danger-soft); color: var(--nyfz-danger); }
.n-btn--text { background: transparent; color: var(--nyfz-link); padding: 0 12px; }
.n-btn--text:active { background: var(--nyfz-primary-soft); }
.n-btn--icon { width: 40px; padding: 0; background: transparent; border-radius: 50%; }
.n-btn--icon:focus-visible { border-radius: 50%; }
.n-btn--icon:active { background: var(--nyfz-fill); }
.n-btn[disabled], .n-btn[aria-disabled="true"] {
  background: var(--nyfz-disabled-bg); color: var(--nyfz-text-disabled); box-shadow: none; transform: none; cursor: not-allowed;
}
.n-btn--text[disabled], .n-btn--icon[disabled] { background: transparent; }
.n-btn[aria-busy="true"] { cursor: progress; }
.n-btn__spin {
  width: 16px; height: 16px; border-radius: 50%; border: 2.5px solid currentColor; border-right-color: transparent;
  opacity: 0.8; animation: n-spin 0.8s linear infinite; flex: none;
}
@keyframes n-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .n-btn__spin { animation-duration: 2s; } }
@media (hover: hover) {
  .n-btn--primary:hover:not([disabled]):not(:active) { background: var(--nyfz-primary-hover); transform: var(--nyfz-btn-hover); box-shadow: var(--nyfz-btn-key-hover); }
  .n-btn--neutral:hover:not([disabled]), .n-btn:not([class*="n-btn--"]):hover:not([disabled]) { background: var(--nyfz-fill-pressed); }
  .n-btn--tonal:hover:not([disabled]) { background: var(--nyfz-primary-soft-pressed); }
  .n-btn--text:hover:not([disabled]), .n-btn--icon:hover:not([disabled]) { background: var(--nyfz-fill); }
}
.n-btn-pair { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 10px; }
@media (max-width: 480px) { .n-btn-pair--stack { grid-template-columns: 1fr; } .n-btn-pair--stack > .n-btn--primary, .n-btn-pair--stack > .n-btn--danger { order: -1; } }

/* ========== 5. 表单（无边框，visual.md 第 6 节） ========== */
.n-form { display: grid; gap: 16px; }
.n-field { display: grid; gap: 6px; min-width: 0; }
.n-label { font-size: 13px; line-height: 18px; font-weight: 600; color: var(--nyfz-text); }
.n-input {
  display: flex; align-items: center; gap: 8px; min-height: 48px; padding: 0 16px; border-radius: var(--nyfz-field-radius);
  background: var(--nyfz-fill); box-shadow: var(--nyfz-field-inset);
  transition: background-color var(--nyfz-dur-release) var(--nyfz-ease-standard), box-shadow var(--nyfz-dur-release) var(--nyfz-ease-standard);
  min-width: 0; /* 带按钮的输入框在窄卡片里不能把卡片撑宽 */
}
.n-input > input, .n-input > textarea, .n-input > select {
  flex: 1; min-width: 0; border: 0; margin: 0; padding: 0; background: transparent; outline: none; box-shadow: none;
  font: 600 16px/22px var(--nyfz-font); color: var(--nyfz-text-strong); -webkit-appearance: none; appearance: none;
}
.n-input > input { height: 46px; }
.n-input > textarea { min-height: 96px; padding: 13px 0; resize: vertical; }
.n-input > input::placeholder, .n-input > textarea::placeholder { color: var(--nyfz-text-placeholder); font-weight: 500; }
.n-input > input::-webkit-outer-spin-button, .n-input > input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.n-input > input[type="number"] { -moz-appearance: textfield; }
.n-input__suffix { color: var(--nyfz-text-secondary); font-size: 13px; font-weight: 600; flex: none; }
.n-input__btn { flex: none; margin-right: -8px; }
.n-input:focus-within { background: var(--nyfz-surface); box-shadow: 0 0 0 2px var(--nyfz-primary); }
.n-input.is-error { background: var(--nyfz-danger-soft); }
.n-input.is-error:focus-within { box-shadow: 0 0 0 2px var(--nyfz-danger); }
.n-input.is-disabled { background: var(--nyfz-disabled-bg); box-shadow: none; }
.n-input.is-disabled > input { color: var(--nyfz-text-disabled); -webkit-text-fill-color: var(--nyfz-text-disabled); }
.n-help { font-size: 13px; line-height: 18px; color: var(--nyfz-text-secondary); }
.n-help--err { color: var(--nyfz-danger); }
.n-form-error {
  background: var(--nyfz-danger-soft); color: var(--nyfz-danger); border-radius: var(--nyfz-radius-sm);
  padding: 10px 12px; font-size: 13px; line-height: 18px;
}
.n-note {
  background: var(--nyfz-warning-soft); color: var(--nyfz-warning); border-radius: var(--nyfz-radius-sm);
  padding: 10px 12px; font-size: 13px; line-height: 18px;
}
.n-note--info { background: var(--nyfz-info-soft); color: var(--nyfz-info); }

/* 开关：<button class="n-switch" role="switch" aria-checked="true"> */
.n-switch {
  -webkit-appearance: none; appearance: none; border: 0; padding: 0; cursor: pointer; flex: none; position: relative;
  width: 44px; height: 26px; border-radius: var(--nyfz-radius-pill); background: var(--nyfz-fill); box-shadow: var(--nyfz-field-inset);
  transition: background-color var(--nyfz-dur-release) var(--nyfz-ease-standard);
}
.n-switch::after {
  content: ""; position: absolute; top: 3px; left: 3px; width: 20px; height: 20px; border-radius: 50%; background: #fff;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.12); transition: transform var(--nyfz-dur-release) var(--nyfz-ease-standard);
}
.n-switch[aria-checked="true"] { background: var(--nyfz-primary); box-shadow: none; }
.n-switch[aria-checked="true"]::after { transform: translateX(18px); }
.n-switch[disabled] { opacity: 0.5; cursor: not-allowed; }
.n-switch:focus-visible { border-radius: var(--nyfz-radius-pill); }

/* 复选框：<label class="n-check"><input type="checkbox"><span class="n-check__box"></span>文字</label> */
.n-check { display: inline-flex; align-items: flex-start; gap: 8px; cursor: pointer; font-size: 14px; line-height: 22px; }
.n-check > input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.n-check__box {
  width: 22px; height: 22px; flex: none; border-radius: var(--nyfz-radius-xs); background: var(--nyfz-fill);
  display: inline-grid; place-items: center; color: #fff; box-shadow: var(--nyfz-field-inset);
}
.n-check__box::after {
  content: ""; width: 10px; height: 6px; border: 2.5px solid currentColor; border-top: 0; border-right: 0;
  transform: translateY(-1px) rotate(-45deg); opacity: 0;
}
.n-check > input:checked + .n-check__box { background: var(--nyfz-primary); box-shadow: none; }
.n-check > input:checked + .n-check__box::after { opacity: 1; }
.n-check > input:focus-visible + .n-check__box { box-shadow: var(--nyfz-focus-ring); }

/* 分段控件（interaction.md 4.1）：<div class="n-seg" role="tablist"><button role="tab" aria-selected="true"> */
.n-seg {
  position: relative; display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; gap: 0; padding: 4px;
  background: var(--nyfz-fill); border-radius: var(--nyfz-radius-pill);
}
.n-seg__thumb {
  position: absolute; top: 4px; bottom: 4px; left: 4px; border-radius: var(--nyfz-radius-pill); background: var(--nyfz-surface);
  box-shadow: var(--nyfz-shadow-soft); transition: transform var(--nyfz-dur-switch) var(--nyfz-ease-standard), width var(--nyfz-dur-switch) var(--nyfz-ease-standard);
  pointer-events: none;
}
.n-seg > button {
  position: relative; z-index: 1; -webkit-appearance: none; appearance: none; border: 0; background: transparent; cursor: pointer;
  padding: 9px 8px; border-radius: var(--nyfz-radius-pill); font: 600 14px/18px var(--nyfz-font); color: var(--nyfz-text-secondary);
  white-space: nowrap; display: inline-flex; align-items: center; justify-content: center; gap: 6px;
}
.n-seg > button[aria-selected="true"] { color: var(--nyfz-text-strong); font-weight: 700; }
.n-seg:not(.has-thumb) > button[aria-selected="true"] { background: var(--nyfz-surface); box-shadow: var(--nyfz-shadow-soft); }
.n-seg > button:focus-visible { border-radius: var(--nyfz-radius-pill); }

/* 筛选标签（interaction.md 4.2）：<div class="n-chips"><button class="n-chip" aria-pressed="true"> */
.n-chips {
  display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none; -webkit-overflow-scrolling: touch; padding: 2px 0;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 12px, #000 calc(100% - 24px), transparent);
          mask-image: linear-gradient(90deg, transparent 0, #000 12px, #000 calc(100% - 24px), transparent);
  padding-left: 2px; padding-right: 24px;
}
.n-chips::-webkit-scrollbar { display: none; }
.n-chips.is-start { -webkit-mask-image: linear-gradient(90deg, #000 calc(100% - 24px), transparent); mask-image: linear-gradient(90deg, #000 calc(100% - 24px), transparent); }
.n-chips.is-fit { -webkit-mask-image: none; mask-image: none; padding-right: 2px; }
.n-chip {
  -webkit-appearance: none; appearance: none; border: 0; cursor: pointer; flex: none; height: 32px; padding: 0 14px;
  border-radius: var(--nyfz-radius-pill); background: var(--nyfz-fill); color: var(--nyfz-text);
  font: 600 13px/1 var(--nyfz-font); display: inline-flex; align-items: center; gap: 4px; white-space: nowrap;
  transition: background-color var(--nyfz-dur-release) var(--nyfz-ease-standard), color var(--nyfz-dur-release) var(--nyfz-ease-standard);
}
.n-chip[aria-pressed="true"], .n-chip[aria-selected="true"] { background: var(--nyfz-primary); color: var(--nyfz-text-on-color); }
.n-chip:focus-visible { border-radius: var(--nyfz-radius-pill); }

/* 搜索框：<label class="n-search"><svg class="n-i"/><input type="search"></label> */
.n-search {
  display: flex; align-items: center; gap: 8px; height: 44px; padding: 0 14px; border-radius: var(--nyfz-field-radius);
  background: var(--nyfz-fill); color: var(--nyfz-text-secondary); box-shadow: var(--nyfz-field-inset);
}
.n-search > input {
  /* 16px：小于 16px 时 iOS Safari 聚焦输入框会自动放大页面 */
  flex: 1; min-width: 0; height: 42px; border: 0; background: transparent; outline: none; font: 500 16px/1 var(--nyfz-font);
  color: var(--nyfz-text-strong); -webkit-appearance: none; appearance: none;
}
.n-search > input::placeholder { color: var(--nyfz-text-placeholder); }
.n-search > input::-webkit-search-cancel-button { -webkit-appearance: none; }
.n-search:focus-within { background: var(--nyfz-surface); box-shadow: 0 0 0 2px var(--nyfz-primary); }

/* 上传位 */
.n-upload {
  -webkit-appearance: none; appearance: none; border: 0; cursor: pointer; position: relative; overflow: hidden;
  width: 96px; height: 96px; border-radius: var(--nyfz-field-radius); background: var(--nyfz-fill); color: var(--nyfz-text-secondary);
  display: grid; place-items: center; align-content: center; gap: 4px; font: 600 12px/16px var(--nyfz-font);
}
.n-upload > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.n-upload__progress { position: absolute; inset: 0; display: grid; place-items: center; background: var(--nyfz-mask); color: #fff; font-weight: 700; }

/* ========== 6. 容器与元素（visual.md 第 7 节） ========== */
.n-card { background: var(--nyfz-surface); border-radius: var(--nyfz-radius-lg); padding: 16px; min-width: 0; }
.n-card--flush { padding: 0; overflow: hidden; }
.n-card__hd { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.n-section { display: grid; gap: 12px; }
.n-stack { display: grid; gap: 12px; }
.n-stack--16 { gap: 16px; } .n-stack--24 { gap: 24px; }
.n-row-x { display: flex; align-items: center; gap: 12px; min-width: 0; }
.n-grow { flex: 1; min-width: 0; }
.n-ellipsis { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.n-clamp-2 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* 列表行（放在卡片里） */
.n-list { display: grid; }
.n-list__row {
  display: flex; align-items: center; gap: 12px; min-height: 52px; padding: 12px 16px; color: var(--nyfz-text-strong);
  position: relative; text-decoration: none; background: transparent; border: 0; width: 100%; text-align: left; font: inherit;
  transition: background-color var(--nyfz-dur-release) var(--nyfz-ease-standard);
}
.n-list__row + .n-list__row::before { content: ""; position: absolute; top: 0; left: 16px; right: 0; height: 1px; background: var(--nyfz-divider); }
.n-list__row--icon + .n-list__row--icon::before { left: 72px; }
a.n-list__row, button.n-list__row { cursor: pointer; }
a.n-list__row:active, button.n-list__row:active { background: var(--nyfz-fill); }
.n-list__main { flex: 1; min-width: 0; display: grid; gap: 2px; }
.n-list__title { font-weight: 600; color: var(--nyfz-text-strong); }
.n-list__sub { font-size: 13px; line-height: 18px; color: var(--nyfz-text-secondary); }
.n-list__end { flex: none; color: var(--nyfz-text-secondary); display: inline-flex; align-items: center; gap: 4px; font-size: 14px; }
.n-list__chev { color: var(--nyfz-text-placeholder); }
.n-kv { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding: 8px 0; font-size: 14px; }
.n-kv + .n-kv { box-shadow: inset 0 1px 0 var(--nyfz-divider); }
.n-kv > :first-child { color: var(--nyfz-text-secondary); flex: none; }
.n-kv > :last-child { color: var(--nyfz-text-strong); font-weight: 600; text-align: right; min-width: 0; overflow-wrap: anywhere; }

/* 状态标签 / 角标 / 推荐标记 */
.n-tag {
  display: inline-flex; align-items: center; gap: 6px; height: 22px; padding: 0 10px; border-radius: var(--nyfz-radius-pill);
  font-size: 12px; line-height: 1; font-weight: 600; white-space: nowrap; flex: none;
  background: var(--nyfz-fill); color: var(--nyfz-text-secondary);
}
.n-tag::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.n-tag--info { background: var(--nyfz-info-soft); color: var(--nyfz-info); }
.n-tag--success { background: var(--nyfz-success-soft); color: var(--nyfz-success); }
.n-tag--warning { background: var(--nyfz-warning-soft); color: var(--nyfz-warning); }
.n-tag--danger { background: var(--nyfz-danger-soft); color: var(--nyfz-danger); }
.n-tag--hot { background: var(--nyfz-highlight); color: var(--nyfz-on-highlight); }
.n-tag--hot::before, .n-tag--plain::before { display: none; }
.n-badge {
  display: inline-block; min-width: 18px; height: 18px; padding: 0 5px; border-radius: var(--nyfz-radius-pill);
  background: var(--nyfz-danger); color: #fff; font-size: 11px; font-weight: 700; line-height: 18px; text-align: center;
  box-shadow: 0 0 0 2px var(--nyfz-surface); font-variant-numeric: tabular-nums;
}
.n-badge.is-bump { animation: n-bump 200ms var(--nyfz-ease-standard); }
@keyframes n-bump { 50% { transform: scale(1.15); } }
@media (prefers-reduced-motion: reduce) { .n-badge.is-bump { animation: none; } }

/* 状态：骨架 / 空 / 出错（interaction.md 6.1） */
.n-skel { display: grid; gap: 14px; padding: 16px; }
.n-skel__row { display: flex; align-items: center; gap: 12px; }
.n-skel__block {
  display: block; height: 14px; border-radius: var(--nyfz-radius-sm);
  background: linear-gradient(90deg, var(--nyfz-fill) 30%, var(--nyfz-bg) 50%, var(--nyfz-fill) 70%); background-size: 300% 100%;
  animation: n-shimmer 1.6s ease-in-out infinite;
}
.n-skel__block--av { width: 40px; height: 40px; flex: none; }
@keyframes n-shimmer { from { background-position: 100% 0; } to { background-position: 0 0; } }
@media (prefers-reduced-motion: reduce) { .n-skel__block { animation: none; } }
.n-state { display: grid; justify-items: center; gap: 8px; text-align: center; padding: 32px 16px; color: var(--nyfz-text-secondary); }
.n-state__art { width: 160px; height: 120px; object-fit: contain; margin-bottom: 4px; }
.n-state__title { font-size: 15px; font-weight: 700; color: var(--nyfz-text-strong); }
.n-state__desc { font-size: 13px; line-height: 18px; max-width: 32em; }
.n-state .n-btn { margin-top: 8px; }
.n-fade-in { animation: n-fade-in var(--nyfz-dur-switch) var(--nyfz-ease-enter) both; }
@keyframes n-fade-in { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .n-fade-in { animation: none; } }

/* 结果卡（interaction.md 6.2） */
.n-result { display: grid; justify-items: center; gap: 8px; text-align: center; padding: 28px 16px 20px; }
.n-result__title { font-size: 17px; font-weight: 700; color: var(--nyfz-text-strong); }
.n-result__icon--success { color: var(--nyfz-success); }
.n-result__icon--warning { color: var(--nyfz-warning); }
.n-result__icon--danger { color: var(--nyfz-danger); }
.n-result__actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 8px; }

/* ========== 7. 页面骨架：顶部栏 / 侧栏 / 底部 Tab / 底部操作栏 ========== */
.n-shell { min-height: 100vh; }
.n-main { min-width: 0; }
.n-page {
  width: 100%; max-width: var(--nyfz-content-max); margin: 0 auto;
  padding-top: 16px; padding-bottom: calc(24px + var(--n-bottom-space, 0px));
  padding-left: max(var(--nyfz-gutter), env(safe-area-inset-left, 0px));
  padding-right: max(var(--nyfz-gutter), env(safe-area-inset-right, 0px));
  display: grid; gap: 16px; align-content: start;
}
body[data-level="1"] { --n-bottom-space: calc(var(--nyfz-tabbar-h) + env(safe-area-inset-bottom, 0px)); }
body.has-actionbar { --n-bottom-space: calc(80px + env(safe-area-inset-bottom, 0px)); }

.n-topbar {
  position: sticky; top: 0; z-index: 30; background: var(--nyfz-surface);
  padding-top: env(safe-area-inset-top, 0px);
  transition: box-shadow var(--nyfz-dur-release) var(--nyfz-ease-standard);
}
.n-topbar.is-scrolled { box-shadow: var(--nyfz-shadow-top); }
.n-topbar__in {
  height: var(--nyfz-topbar-h); display: flex; align-items: center; gap: 4px; max-width: var(--nyfz-content-max); margin: 0 auto;
  padding-left: max(calc(var(--nyfz-gutter) - 8px), env(safe-area-inset-left, 0px));
  padding-right: max(calc(var(--nyfz-gutter) - 8px), env(safe-area-inset-right, 0px));
}
body[data-level="1"] .n-topbar__in { padding-left: max(var(--nyfz-gutter), env(safe-area-inset-left, 0px)); }
.n-topbar__title { flex: 1; min-width: 0; font-size: 17px; line-height: 24px; font-weight: 700; color: var(--nyfz-text-strong); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
body[data-level="1"] .n-topbar__title { font-size: 20px; }
.n-topbar__actions { display: flex; align-items: center; gap: 2px; flex: none; }
.n-topbar__user { display: none; }
.n-topbar__back { color: var(--nyfz-text-strong); }

.n-tabbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 40; background: var(--nyfz-surface); box-shadow: var(--nyfz-shadow-bar);
  padding-bottom: env(safe-area-inset-bottom, 0px);
  padding-left: env(safe-area-inset-left, 0px); padding-right: env(safe-area-inset-right, 0px);
}
.n-tabbar__in { height: var(--nyfz-tabbar-h); display: grid; grid-template-columns: repeat(5, 1fr); max-width: 640px; margin: 0 auto; }
.n-tab {
  position: relative; display: grid; justify-items: center; align-content: center; gap: 2px; text-decoration: none;
  font-size: 11px; line-height: 14px; font-weight: 600; color: var(--nyfz-text-secondary); -webkit-tap-highlight-color: transparent;
}
.n-tab[aria-current="page"] { color: var(--nyfz-primary); font-weight: 700; }
.n-tab .n-fi { --n-fi-size: 26px; }
.n-tab .n-fi-n--on { display: none; }
.n-tab .n-fi { color: inherit; }
.n-tab[aria-current="page"] .n-fi-n--off { display: none; }
.n-tab[aria-current="page"] .n-fi-n--on { display: block; }
.n-tab[aria-current="page"] .n-fi { animation: n-tab-pop 160ms var(--nyfz-ease-standard); }
@keyframes n-tab-pop { 50% { transform: scale(1.08); } }
@media (prefers-reduced-motion: reduce) { .n-tab[aria-current="page"] .n-fi { animation: none; } }
.n-tab .n-badge { position: absolute; top: 4px; left: calc(50% + 6px); }
body:not([data-level="1"]) .n-tabbar { display: none; }

.n-actionbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 40; background: var(--nyfz-surface); box-shadow: var(--nyfz-shadow-bar);
  padding: 12px max(var(--nyfz-gutter), env(safe-area-inset-right, 0px)) calc(12px + env(safe-area-inset-bottom, 0px)) max(var(--nyfz-gutter), env(safe-area-inset-left, 0px));
}
.n-actionbar__in { max-width: var(--nyfz-content-max); margin: 0 auto; display: grid; gap: 8px; }
.n-actionbar__sum { display: flex; justify-content: space-between; align-items: baseline; font-size: 13px; color: var(--nyfz-text-secondary); }
body.is-keyboard .n-actionbar { position: static; box-shadow: none; background: transparent; padding: 0 0 16px; }

.n-sidebar { display: none; }

@media (min-width: 768px) {
  .n-shell { display: grid; grid-template-columns: var(--nyfz-sidebar-w) minmax(0, 1fr); }
  body[data-level] { --n-bottom-space: 0px; }
  body.has-actionbar { --n-bottom-space: 0px; }
  .n-tabbar { display: none !important; }
  .n-actionbar { position: static; box-shadow: none; background: transparent; padding: 0; }
  .n-actionbar__in { max-width: none; }
  .n-page { padding-top: 24px; gap: 20px; }
  .n-topbar__in { padding-left: var(--nyfz-gutter); padding-right: var(--nyfz-gutter); }
  .n-topbar__back--mobile { display: none; }
  .n-topbar__user { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--nyfz-text-secondary); min-height: 40px; padding: 0 4px; border-radius: var(--nyfz-radius-pill); }
  /* 头像：没有头像或加载失败时露出底下的 person 图标 */
  .n-topbar__avatar {
    position: relative; width: 28px; height: 28px; flex: none; border-radius: 50%; overflow: hidden;
    display: inline-grid; place-items: center; background: var(--nyfz-fill); color: var(--nyfz-text-secondary);
  }
  .n-topbar__avatar > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }

  .n-sidebar {
    display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh; overflow-y: auto; background: var(--nyfz-surface);
    padding: 20px 12px 24px; gap: 4px; box-shadow: 1px 0 0 var(--nyfz-divider);
  }
  .n-sidebar__brand { display: flex; align-items: center; gap: 10px; padding: 4px 12px 16px; font-size: 17px; font-weight: 800; color: var(--nyfz-text-strong); }
  .n-sidebar__brand img { display: block; width: 136px; height: auto; }
  .n-sidebar__group { display: grid; gap: 2px; }
  .n-sidebar__head {
    -webkit-appearance: none; appearance: none; border: 0; background: transparent; cursor: pointer; width: 100%;
    display: flex; align-items: center; gap: 10px; height: 40px; padding: 0 12px; border-radius: var(--nyfz-radius-sm);
    font: 700 14px/1 var(--nyfz-font); color: var(--nyfz-text-strong); text-decoration: none; text-align: left;
  }
  .n-sidebar__head .n-fi { --n-fi-size: 22px; }
  .n-sidebar__head:hover, .n-sidebar__link:hover { background: var(--nyfz-fill); }
  .n-sidebar__caret { margin-left: auto; color: var(--nyfz-text-placeholder); transition: transform var(--nyfz-dur-expand) var(--nyfz-ease-standard); }
  .n-sidebar__group[data-open="true"] .n-sidebar__caret { transform: rotate(180deg); }
  .n-sidebar__sub { display: grid; grid-template-rows: 0fr; transition: grid-template-rows var(--nyfz-dur-expand) var(--nyfz-ease-standard); }
  .n-sidebar__group[data-open="true"] .n-sidebar__sub { grid-template-rows: 1fr; }
  .n-sidebar__sub > div { overflow: hidden; display: grid; gap: 2px; }
  .n-sidebar__link {
    display: flex; align-items: center; gap: 8px; height: 36px; padding: 0 12px 0 44px; border-radius: var(--nyfz-radius-sm);
    font-size: 14px; font-weight: 600; color: var(--nyfz-text-secondary); text-decoration: none;
  }
  .n-sidebar__link[aria-current="page"], .n-sidebar__head[aria-current="page"] { background: var(--nyfz-primary-soft); color: var(--nyfz-text-strong); }
  :root:not([data-scheme="warm"]) .n-sidebar__link[aria-current="page"],
  :root:not([data-scheme="warm"]) .n-sidebar__head[aria-current="page"] { background: var(--nyfz-fill); }
  .n-sidebar__link .n-badge { margin-left: auto; box-shadow: none; }
}

/* ========== 8. 弹层：底部抽屉 / 对话框 / 确认面板 / 轻提示 ========== */
.n-layer { position: fixed; inset: 0; z-index: 100; display: flex; align-items: flex-end; justify-content: center; }
.n-layer__mask { position: absolute; inset: 0; background: var(--nyfz-mask); opacity: 0; transition: opacity var(--nyfz-dur-sheet-out) var(--nyfz-ease-exit); }
.n-layer__panel {
  position: relative; width: 100%; max-height: 85vh; display: flex; flex-direction: column; background: var(--nyfz-surface);
  border-radius: var(--nyfz-radius-xl) var(--nyfz-radius-xl) 0 0; box-shadow: var(--nyfz-shadow-float);
  padding-bottom: env(safe-area-inset-bottom, 0px);
  transform: translateY(100%); transition: transform var(--nyfz-dur-sheet-out) var(--nyfz-ease-exit);
}
.n-layer.is-open .n-layer__mask { opacity: 1; transition: opacity var(--nyfz-dur-sheet-in) var(--nyfz-ease-enter); }
.n-layer.is-open .n-layer__panel { transform: none; transition: transform var(--nyfz-dur-sheet-in) var(--nyfz-ease-enter); }
/* 弹层打开时焦点在面板本身（nyfz-ui.js layer），不显示焦点环 */
.n-layer__panel:focus { outline: none; }
.n-layer__grab { width: 36px; height: 4px; border-radius: 4px; background: var(--nyfz-fill-pressed); margin: 10px auto 0; flex: none; }
.n-layer__hd { display: flex; align-items: center; gap: 8px; padding: 12px 12px 4px 20px; flex: none; }
.n-layer__title { flex: 1; min-width: 0; font-size: 17px; line-height: 24px; font-weight: 700; color: var(--nyfz-text-strong); }
.n-layer__bd { padding: 8px 20px 16px; overflow-y: auto; overscroll-behavior: contain; min-height: 0; }
.n-layer__ft { padding: 8px 20px 20px; flex: none; display: grid; gap: 10px; }
.n-layer__err:empty { display: none; }
@media (min-width: 768px) {
  .n-layer { align-items: center; padding: 24px; }
  .n-layer__panel {
    width: 480px; max-width: 100%; max-height: 80vh; border-radius: var(--nyfz-radius-xl); padding-bottom: 0;
    transform: scale(0.96); opacity: 0; transition: transform var(--nyfz-dur-sheet-out) var(--nyfz-ease-exit), opacity var(--nyfz-dur-sheet-out) var(--nyfz-ease-exit);
  }
  .n-layer--read .n-layer__panel { width: 640px; }
  .n-layer.is-open .n-layer__panel { transform: none; opacity: 1; transition: transform 200ms var(--nyfz-ease-enter), opacity 200ms var(--nyfz-ease-enter); }
  .n-layer__grab { display: none; }
  .n-layer__hd { padding-top: 20px; }
}
/* 居中对话框（layer({ center: true })）：手机端也不用底部抽屉，用于必须让用户读到的信息（02-home 5.6 公告弹窗） */
.n-layer--center { align-items: center; padding: 24px 16px; }
.n-layer--center .n-layer__panel {
  width: 480px; max-width: 100%; max-height: 80vh; border-radius: var(--nyfz-radius-xl); padding-bottom: 0;
  transform: scale(0.96); opacity: 0; transition: transform var(--nyfz-dur-sheet-out) var(--nyfz-ease-exit), opacity var(--nyfz-dur-sheet-out) var(--nyfz-ease-exit);
}
.n-layer--center.n-layer--read .n-layer__panel { width: 640px; }
.n-layer--center.is-open .n-layer__panel { transform: none; opacity: 1; transition: transform 200ms var(--nyfz-ease-enter), opacity 200ms var(--nyfz-ease-enter); }
.n-layer--center .n-layer__grab { display: none; }
.n-layer--center .n-layer__hd { padding-top: 20px; }

/* 确认面板内容（interaction.md 5.2） */
.n-confirm__amount { margin: 2px 0 10px; }
.n-confirm__sub { font-size: 14px; color: var(--nyfz-text-secondary); margin: -6px 0 10px; }
.n-confirm__note { margin-top: 12px; }
.n-confirm__extra { margin-top: 14px; display: grid; gap: 12px; }

/* 轻提示（interaction.md 5.4） */
.n-toast-host {
  position: fixed; left: 0; right: 0; z-index: 200; display: flex; justify-content: center; pointer-events: none;
  bottom: calc(16px + var(--n-bottom-space, 0px) + env(safe-area-inset-bottom, 0px)); padding: 0 16px;
}
body.is-keyboard .n-toast-host { bottom: auto; top: calc(12px + env(safe-area-inset-top, 0px)); }
.n-toast {
  pointer-events: auto; display: inline-flex; align-items: center; gap: 8px; max-width: 520px;
  background: var(--nyfz-text-strong); color: #fff; padding: 10px 18px; border-radius: var(--nyfz-radius-md);
  box-shadow: var(--nyfz-shadow-float); font-size: 14px; line-height: 20px;
  opacity: 0; transform: translateY(8px); transition: opacity 160ms var(--nyfz-ease-exit), transform 160ms var(--nyfz-ease-exit);
}
.n-toast.is-in { opacity: 1; transform: none; transition: opacity 160ms var(--nyfz-ease-enter), transform 160ms var(--nyfz-ease-enter); }
@media (min-width: 768px) {
  .n-toast-host { bottom: auto; top: 20px; }
  .n-toast { transform: translateY(-8px); }
}
@media (prefers-reduced-motion: reduce) { .n-toast, .n-toast.is-in { transform: none; } }