/* ============================================================
   磨砂玻璃 3D 图标库 · icons.wwei.ai
   浅色 · 留白 · 轻盈磨砂材质，衬托图标本身
   ============================================================ */

:root {
  /* 暖调纸感底 + 中性墨色文字，图标自身提供色彩 */
  --paper: #f4f2ec;
  --paper-2: #efece4;
  --ink: #201f1b;
  --ink-soft: #55524a;
  --ink-mute: #8b877c;
  --hairline: rgba(32, 31, 27, 0.10);
  --hairline-2: rgba(32, 31, 27, 0.06);
  --accent: #b0552f;          /* 克制的赤陶色，仅用于激活/聚焦，避免紫色 AI 模板感 */
  --accent-soft: rgba(176, 85, 47, 0.12);
  --glass: rgba(255, 255, 255, 0.55);
  --glass-strong: rgba(255, 255, 255, 0.72);
  --glass-border: rgba(255, 255, 255, 0.8);
  --shadow-soft: 0 1px 2px rgba(32, 31, 27, 0.05), 0 8px 24px rgba(32, 31, 27, 0.06);
  --shadow-lift: 0 2px 6px rgba(32, 31, 27, 0.07), 0 18px 44px rgba(32, 31, 27, 0.12);
  --radius: 20px;
  --radius-sm: 12px;
  --focus: 0 0 0 3px var(--paper), 0 0 0 5px var(--accent);
  --tap: rgba(32, 31, 27, 0.04);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --grid-min: 132px;
}

* { box-sizing: border-box; }

/* 自定义 display 不得覆盖原生 hidden 状态。 */
[hidden] { display: none !important; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* ---------- 柔光背景（装饰，轻盈） ---------- */
.ambient {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  background:
    radial-gradient(120% 80% at 50% -10%, var(--paper-2), var(--paper) 60%);
}
.ambient__blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.5;
}
.ambient__blob--a { width: 46vw; height: 46vw; top: -12vw; left: -8vw; background: #d9e3e6; }
.ambient__blob--b { width: 40vw; height: 40vw; top: 8vw;  right: -10vw; background: #efe1d4; }
.ambient__blob--c { width: 34vw; height: 34vw; bottom: -14vw; left: 30vw; background: #e6e3ef; opacity: 0.4; }

/* ---------- 无障碍：跳转链接 ---------- */
.skip-link {
  position: absolute;
  left: 50%;
  top: -60px;
  transform: translateX(-50%);
  z-index: 100;
  background: var(--ink);
  color: #fff;
  padding: 10px 18px;
  border-radius: 0 0 12px 12px;
  text-decoration: none;
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 0; }

/* ---------- 顶栏 ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(244, 242, 236, 0.82);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--hairline-2);
}
.topbar__inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 16px clamp(16px, 4vw, 40px) 12px;
  display: flex;
  align-items: center;
  gap: clamp(16px, 4vw, 40px);
}

.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand__mark {
  width: 34px; height: 34px;
  border-radius: 10px;
  background:
    linear-gradient(145deg, rgba(255,255,255,0.9), rgba(255,255,255,0.35)),
    linear-gradient(145deg, #c9d6da, #e7d8c8);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-soft), inset 0 1px 1px rgba(255,255,255,0.8);
}
.brand__text { display: flex; flex-direction: column; line-height: 1.15; }
.brand__name { font-weight: 650; font-size: 15px; letter-spacing: 0.01em; }
.brand__domain { font-size: 12px; color: var(--ink-mute); letter-spacing: 0.02em; }

/* ---------- 搜索 ---------- */
.search {
  position: relative;
  flex: 1 1 auto;
  max-width: 560px;
  margin-left: auto;
  display: flex;
  align-items: center;
}
.search__label {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
.search__icon {
  position: absolute;
  left: 16px;
  color: var(--ink-mute);
  display: flex;
  pointer-events: none;
}
.search__input {
  width: 100%;
  font-size: 15px;
  font-family: inherit;
  color: var(--ink);
  padding: 12px 44px 12px 44px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: var(--glass-strong);
  box-shadow: var(--shadow-soft), inset 0 1px 1px rgba(255,255,255,0.7);
  transition: border-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}
.search__input::placeholder { color: var(--ink-mute); }
.search__input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--focus), var(--shadow-soft);
}
.search__input::-webkit-search-cancel-button { -webkit-appearance: none; }
.search__clear {
  position: absolute;
  right: 8px;
  width: 30px; height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: var(--ink-soft);
  cursor: pointer;
  transition: background 0.15s var(--ease);
}
.search__clear:hover { background: var(--tap); }
.search__clear:focus-visible { outline: none; box-shadow: var(--focus); }

/* ---------- 分类筛选 ---------- */
.filters {
  max-width: 1240px;
  margin: 0 auto;
  padding: 4px clamp(16px, 4vw, 40px) 14px;
  overflow-x: auto;
  scrollbar-width: none;
}
.filters::-webkit-scrollbar { display: none; }
.filters__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  min-width: max-content;
}
.chip {
  font-family: inherit;
  font-size: 13.5px;
  color: var(--ink-soft);
  white-space: nowrap;
  padding: 7px 14px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: var(--glass);
  cursor: pointer;
  transition: color 0.15s var(--ease), background 0.15s var(--ease),
    border-color 0.15s var(--ease);
}
.chip:hover { border-color: rgba(32,31,27,0.2); color: var(--ink); }
.chip:focus-visible { outline: none; box-shadow: var(--focus); }
.chip[aria-pressed="true"] {
  color: #fff;
  background: var(--ink);
  border-color: var(--ink);
}
.chip__count {
  font-size: 12px;
  opacity: 0.7;
  margin-left: 5px;
  font-variant-numeric: tabular-nums;
}

/* ---------- 主画布 ---------- */
.canvas {
  max-width: 1240px;
  margin: 0 auto;
  padding: 20px clamp(16px, 4vw, 40px) 64px;
}
.canvas__meta {
  min-height: 22px;
  margin: 4px 2px 18px;
}
.canvas__count {
  margin: 0;
  font-size: 13px;
  color: var(--ink-mute);
  letter-spacing: 0.01em;
}
.canvas__count strong { color: var(--ink-soft); font-weight: 600; }

/* ---------- 网格：无边框沉浸，空间节奏分隔 ---------- */
.grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(var(--grid-min), 1fr));
  gap: clamp(8px, 1.4vw, 18px);
}
.grid__item { margin: 0; }

.tile {
  position: relative;
  width: 100%;
  padding: 0;
  border: 1px solid transparent;
  border-radius: var(--radius);
  background: transparent;
  color: inherit;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease),
    border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
/* 悬停/聚焦才浮现磨砂托盘 —— 避免每项都是厚重卡片 */
.tile:hover,
.tile:focus-within {
  transform: translateY(-3px);
  background: var(--glass-strong);
  border-color: var(--glass-border);
  box-shadow: var(--shadow-lift);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.tile:focus-within { box-shadow: var(--focus), var(--shadow-lift); }

.tile__open {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 18px 12px 14px;
  border: 0;
  border-radius: inherit;
  background: transparent;
  color: inherit;
  font: inherit;
  cursor: pointer;
  text-align: center;
}
.tile__open:focus-visible { outline: none; }

.tile__art {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
.tile__img {
  width: 78%;
  height: 78%;
  object-fit: contain;
  filter: drop-shadow(0 8px 14px rgba(32, 31, 27, 0.14));
  transition: transform 0.2s var(--ease);
}
.tile:hover .tile__img,
.tile:focus-within .tile__img { transform: scale(1.06); }

.tile__name {
  font-size: 13px;
  font-weight: 550;
  color: var(--ink);
  line-height: 1.25;
}
.tile__en { margin-top: -7px; color: var(--ink-soft); font-family: "Iowan Old Style", Georgia, serif; font-size: 11px; letter-spacing: .02em; }
.tile__cat {
  font-size: 11px;
  color: var(--ink-mute);
}

/* 悬停/聚焦时浮现下载提示徽标 */
.tile__download {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 30px; height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--glass-strong);
  border: 1px solid var(--glass-border);
  color: var(--ink);
  box-shadow: var(--shadow-soft);
  cursor: pointer;
  opacity: 0;
  transform: translateY(-4px) scale(0.9);
  transition: opacity 0.18s var(--ease), transform 0.18s var(--ease);
}
.tile:hover .tile__download,
.tile:focus-within .tile__download,
.tile__download:focus-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}
.tile__download:focus-visible { outline: none; box-shadow: var(--focus), var(--shadow-soft); }
.tile.is-downloading .tile__download { opacity: 1; transform: none; }

/* ---------- 状态 ---------- */
.state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
  padding: 72px 20px;
  color: var(--ink-soft);
}
.state__title { font-size: 16px; font-weight: 600; color: var(--ink); margin: 0; }
.state__hint { font-size: 13.5px; color: var(--ink-mute); margin: 0; }
.state--error .state__title { color: var(--accent); }

.spinner {
  width: 30px; height: 30px;
  border-radius: 50%;
  border: 3px solid var(--hairline);
  border-top-color: var(--accent);
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.btn {
  font-family: inherit;
  font-size: 14px;
  font-weight: 550;
  color: #fff;
  background: var(--ink);
  border: none;
  border-radius: 999px;
  padding: 10px 22px;
  cursor: pointer;
  transition: transform 0.15s var(--ease), opacity 0.15s var(--ease);
}
.btn:hover { transform: translateY(-1px); opacity: 0.92; }
.btn:focus-visible { outline: none; box-shadow: var(--focus); }
.btn--quiet { color: var(--ink); background: rgba(255,255,255,0.72); border: 1px solid var(--hairline); }

/* ---------- 作品详情：编辑型档案，不改变首页品牌 ---------- */
body.has-detail { overflow: hidden; }
.detail {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: 28px;
}
.detail__backdrop {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  background: rgba(32,31,27,0.28);
  backdrop-filter: blur(14px) saturate(90%);
  -webkit-backdrop-filter: blur(14px) saturate(90%);
  cursor: default;
}
.detail__panel {
  position: relative;
  width: min(1080px, calc(100vw - 56px));
  max-height: min(760px, calc(100dvh - 56px));
  display: grid;
  grid-template-columns: minmax(420px, 520px) minmax(360px, 1fr);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.82);
  border-radius: 28px;
  background: rgba(247,245,239,0.96);
  box-shadow: 0 34px 100px rgba(32,31,27,0.22), inset 0 1px rgba(255,255,255,0.82);
  animation: detail-in 0.28s var(--ease) both;
}
@keyframes detail-in {
  from { opacity: 0; transform: translateY(14px) scale(0.985); }
  to { opacity: 1; transform: none; }
}
.detail__handle { display: none; }
.detail__close {
  position: absolute;
  z-index: 4;
  top: 16px;
  right: 16px;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid var(--hairline);
  border-radius: 50%;
  color: var(--ink);
  background: rgba(255,255,255,0.76);
  box-shadow: var(--shadow-soft);
  cursor: pointer;
}
.detail__close:hover { background: #fff; }
.detail__close:focus-visible { outline: none; box-shadow: var(--focus); }
.detail__stage {
  position: relative;
  width: 100%;
  min-height: 600px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-right: 1px solid var(--hairline-2);
  background:
    radial-gradient(circle at 50% 42%, rgba(255,255,255,.86) 0 24%, transparent 62%),
    linear-gradient(145deg, rgba(221,232,233,.82), rgba(240,230,221,.72));
}
.detail__stage::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .38;
  background-image: linear-gradient(var(--hairline-2) 1px, transparent 1px), linear-gradient(90deg, var(--hairline-2) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(circle at center, #000, transparent 72%);
}
.detail__stage-label {
  position: absolute;
  z-index: 2;
  top: 20px;
  left: 22px;
  color: var(--ink-mute);
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.detail__art { position: relative; z-index: 1; width: 100%; min-height: 320px; display: grid; place-items: center; }
.detail__art img {
  width: min(420px, 82%);
  height: min(420px, 82%);
  object-fit: contain;
  filter: drop-shadow(0 26px 32px rgba(32,31,27,.17));
}
.detail__body { min-width: 0; overflow-y: auto; padding: 62px 40px 34px; scrollbar-width: thin; }
.detail__loading,
.detail__error { min-height: 440px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; text-align: center; color: var(--ink-mute); }
.detail__error-title { margin: 0; color: var(--accent); font-weight: 650; }
.detail__error p { margin: 0; font-size: 13px; }
.detail__error-actions { display: flex; gap: 8px; margin-top: 8px; }
.detail__heading { padding-right: 34px; }
.detail__eyebrow { margin: 0 0 8px; color: var(--accent); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; }
.detail__heading h2 { margin: 0; font-family: "Iowan Old Style", "Songti SC", serif; font-size: clamp(34px, 4vw, 48px); font-weight: 500; line-height: 1.05; letter-spacing: -.025em; }
.detail__english { margin: 8px 0 0; color: var(--ink-soft); font-size: 15px; }
.detail__summary { margin: 14px 0 0; color: var(--ink-mute); font-size: 13px; line-height: 1.75; }
.detail__facts { display: grid; grid-template-columns: repeat(2, 1fr); margin: 28px 0 30px; border-top: 1px solid var(--hairline); border-left: 1px solid var(--hairline); }
.detail__facts div { min-width: 0; padding: 12px 14px; border-right: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }
.detail__facts span { display: block; margin-bottom: 4px; color: var(--ink-mute); font-size: 10px; letter-spacing: .06em; }
.detail__facts strong { display: block; overflow-wrap: anywhere; font-size: 12px; font-weight: 600; }
.detail__section { padding: 22px 0; border-top: 1px solid var(--hairline); }
.detail__section h3 { margin: 0; font-size: 12px; font-weight: 650; letter-spacing: .04em; }
.detail__section-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.copy-btn { border: 0; padding: 5px 0; color: var(--ink-mute); background: transparent; font: inherit; font-size: 11px; cursor: pointer; }
.copy-btn:hover { color: var(--accent); }
.copy-btn:focus-visible { outline: none; box-shadow: var(--focus); border-radius: 6px; }
.detail__prompt { margin: 14px 0 0; color: var(--ink-soft); font-family: "Iowan Old Style", "Songti SC", serif; font-size: 15px; line-height: 1.75; white-space: pre-wrap; }
.detail__generation,
.detail__params { margin: 12px 0 0; }
.detail__generation div,
.detail__params div { display: grid; grid-template-columns: minmax(80px, .8fr) 1.3fr; gap: 14px; padding: 8px 0; border-bottom: 1px solid var(--hairline-2); font-size: 12px; }
.detail__generation dt,
.detail__params dt { color: var(--ink-mute); }
.detail__generation dd,
.detail__params dd { margin: 0; overflow-wrap: anywhere; color: var(--ink-soft); text-align: right; }
.detail__section--copyright p { margin: 12px 0 0; color: var(--ink-mute); font-size: 12px; line-height: 1.7; }
.detail__actions { position: sticky; bottom: -34px; display: grid; grid-template-columns: 1.5fr 1fr; gap: 8px; padding: 16px 0 0; background: linear-gradient(transparent, rgba(247,245,239,.98) 25%); }
.detail__download,
.detail__link,
.detail__reference { min-height: 46px; border-radius: 999px; padding: 0 18px; font: inherit; font-size: 13px; font-weight: 600; cursor: pointer; }
.detail__download { border: 0; color: #fff; background: var(--ink); }
.detail__link,
.detail__reference { border: 1px solid var(--hairline); color: var(--ink); background: rgba(255,255,255,.72); }
.detail__reference { grid-column: 1 / -1; }
.detail__reference[aria-pressed="true"] { color: var(--accent); border-color: rgba(176,85,47,.28); background: var(--accent-soft); }
.detail__download:hover,
.detail__link:hover,
.detail__reference:hover { transform: translateY(-1px); }
.detail__download:focus-visible,
.detail__link:focus-visible,
.detail__reference:focus-visible { outline: none; box-shadow: var(--focus); }

/* ---------- Toast 下载反馈 ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translate(-50%, 20px);
  z-index: 60;
  display: flex;
  align-items: center;
  gap: 9px;
  max-width: calc(100vw - 32px);
  padding: 11px 18px;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  font-size: 13.5px;
  box-shadow: var(--shadow-lift);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.24s var(--ease), transform 0.24s var(--ease);
}
.toast.is-visible { opacity: 1; transform: translate(-50%, 0); }
.toast.is-error { background: var(--accent); }
.toast__dot { width: 7px; height: 7px; border-radius: 50%; background: #7fd1a8; flex: none; }
.toast.is-error .toast__dot { background: #ffd3c4; }

/* ---------- 页脚 ---------- */
.footer {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 40px) 48px;
  color: var(--ink-mute);
  font-size: 12.5px;
  text-align: center;
}

/* ---------- 响应式：手机 390px ---------- */
@media (max-width: 640px) {
  :root { --grid-min: 104px; }
  .topbar__inner {
    flex-wrap: wrap;
    gap: 12px;
    padding: 12px 16px 8px;
  }
  .brand__mark { width: 30px; height: 30px; }
  .search {
    order: 3;
    flex-basis: 100%;
    max-width: none;
    margin-left: 0;
  }
  .filters { padding: 2px 16px 12px; }
  .canvas { padding: 16px 16px 48px; }
  .grid { gap: 6px; }
  .tile__open { padding: 14px 8px 12px; gap: 8px; }
  .tile__download { opacity: 1; transform: none; }  /* 触屏无 hover，常显下载提示 */
  .detail { align-items: end; padding: 0; }
  .detail__panel {
    width: 100%;
    max-height: 94dvh;
    grid-template-columns: 1fr;
    grid-template-rows: 280px minmax(0, 1fr);
    border-radius: 24px 24px 0 0;
    animation-name: detail-sheet-in;
  }
  @keyframes detail-sheet-in {
    from { opacity: 0; transform: translateY(28px); }
    to { opacity: 1; transform: none; }
  }
  .detail__handle { display: block; position: absolute; z-index: 5; top: 8px; left: 50%; width: 38px; height: 4px; border-radius: 4px; transform: translateX(-50%); background: rgba(32,31,27,.18); }
  .detail__close { top: 16px; right: 14px; }
  .detail__stage { min-height: 280px; border-right: 0; border-bottom: 1px solid var(--hairline-2); }
  .detail__stage-label { top: 18px; left: 16px; }
  .detail__art { min-height: 220px; }
  .detail__art img { width: min(260px, 68vw); height: min(260px, 68vw); }
  .detail__body { padding: 30px 20px calc(24px + env(safe-area-inset-bottom)); }
  .detail__loading,
  .detail__error { min-height: 280px; }
  .detail__heading h2 { font-size: 36px; }
  .detail__facts { margin-top: 24px; }
  .detail__actions { bottom: calc(-24px - env(safe-area-inset-bottom)); padding-bottom: calc(10px + env(safe-area-inset-bottom)); }
}

@media (max-width: 380px) {
  :root { --grid-min: 96px; }
}

/* ---------- 尊重减少动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .tile:hover,
  .tile:focus-within { transform: none; }
  .tile:hover .tile__img,
  .tile:focus-within .tile__img { transform: none; }
  .detail__panel { animation: none; }
}

/* ============================================================
   Concept × Style 视图
   保留原有编辑型收藏台，用一条紧凑切换条完成双风格对照。
   ============================================================ */
.viewbar {
  max-width: 1240px;
  margin: 0 auto;
  padding: 5px clamp(16px, 4vw, 40px) 10px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.viewbar__label {
  margin: 0;
  color: var(--ink-mute);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.viewbar__hint {
  margin: 0 0 0 auto;
  color: var(--ink-mute);
  font-family: "Iowan Old Style", "Songti SC", serif;
  font-size: 12px;
  letter-spacing: .015em;
}
.view-switch {
  display: inline-flex;
  align-items: stretch;
  padding: 3px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: rgba(255,255,255,.42);
  box-shadow: inset 0 1px rgba(255,255,255,.7);
}
.view-switch__button {
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 13px;
  border: 0;
  border-radius: 999px;
  color: var(--ink-soft);
  background: transparent;
  font: inherit;
  font-size: 12px;
  white-space: nowrap;
  cursor: pointer;
  transition: color .16s var(--ease), background .16s var(--ease), box-shadow .16s var(--ease);
}
.view-switch__button small { color: inherit; font-size: 10px; opacity: .66; }
.view-switch__button:hover { color: var(--ink); }
.view-switch__button:focus-visible { outline: none; box-shadow: var(--focus); }
.view-switch__button[aria-pressed="true"] {
  color: #fff;
  background: var(--ink);
  box-shadow: 0 2px 8px rgba(32,31,27,.16);
}
.view-switch__button--reference small {
  min-width: 18px;
  padding: 1px 5px;
  border-radius: 999px;
  background: rgba(32,31,27,.09);
  font-variant-numeric: tabular-nums;
  text-align: center;
}
.view-switch__button--reference[aria-pressed="true"] small { background: rgba(255,255,255,.18); }
.filters { padding-top: 2px; border-top: 1px solid var(--hairline-2); }

/* 参考桌：服务于截图、复制和垫图确认，不伪装成云端数据。 */
.reference-desk {
  margin: 0 0 22px;
  padding: clamp(18px, 3vw, 30px);
  display: block;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.88);
  border-radius: 24px;
  background:
    radial-gradient(circle at 82% 10%, rgba(213,231,232,.92), transparent 35%),
    linear-gradient(135deg, rgba(255,255,255,.8), rgba(239,232,222,.7));
  box-shadow: var(--shadow-soft), inset 0 1px rgba(255,255,255,.92);
}
.reference-desk__hero {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
}
.reference-desk__copy { min-width: 0; max-width: 690px; }
.reference-desk__eyebrow { margin: 0 0 6px; color: var(--accent); font-size: 10px; font-weight: 700; letter-spacing: .14em; }
.reference-desk h1 {
  margin: 0;
  font-family: "Iowan Old Style", "Songti SC", serif;
  font-size: clamp(24px, 3vw, 38px);
  font-weight: 520;
  line-height: 1.15;
  letter-spacing: -.025em;
}
.reference-desk__copy > p:last-child { margin: 10px 0 0; color: var(--ink-soft); font-size: 12px; line-height: 1.7; }
.reference-desk__copy-all {
  flex: none;
  min-height: 42px;
  padding: 0 17px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  color: #fff;
  background: var(--ink);
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
}
.reference-desk__copy-all:hover { transform: translateY(-1px); }
.reference-desk__copy-all:focus-visible { outline: none; box-shadow: var(--focus); }
.reference-library {
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid var(--hairline);
}
.reference-library__head,
.candidate-reference-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
}
.reference-library__head h2,
.candidate-reference-head h2 {
  margin: 2px 0 0;
  font-family: "Iowan Old Style", "Songti SC", serif;
  font-size: 19px;
  font-weight: 540;
  line-height: 1.25;
}
.reference-library__kicker {
  margin: 0;
  color: var(--ink-mute);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .12em;
}
.reference-library__head > span,
.candidate-reference-head > span {
  flex: none;
  color: var(--ink-mute);
  font-size: 11px;
}
.reference-library__head > span strong,
.candidate-reference-head > span strong { color: var(--ink); font-size: 15px; font-variant-numeric: tabular-nums; }
.reference-library__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}
.standard-reference-card {
  min-width: 0;
  padding: 9px;
  border: 1px solid rgba(255,255,255,.78);
  border-radius: 18px;
  background: rgba(255,255,255,.52);
  box-shadow: inset 0 1px rgba(255,255,255,.82);
}
.standard-reference-card__art {
  position: relative;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-radius: 13px;
  background:
    radial-gradient(circle at 45% 34%, rgba(255,255,255,.86), transparent 48%),
    rgba(232,236,233,.66);
}
.standard-reference-card__art img { width: 88%; height: 88%; object-fit: contain; filter: drop-shadow(0 10px 16px rgba(32,31,27,.13)); }
.standard-reference-card__art span {
  position: absolute;
  top: 8px;
  left: 8px;
  padding: 3px 7px;
  border: 1px solid rgba(255,255,255,.8);
  border-radius: 999px;
  color: var(--ink-soft);
  background: rgba(255,255,255,.78);
  font-size: 8px;
  backdrop-filter: blur(6px);
}
.standard-reference-card__meta { display: flex; align-items: start; justify-content: space-between; gap: 8px; padding: 10px 2px 0; }
.standard-reference-card__meta > div { min-width: 0; }
.standard-reference-card__meta strong,
.standard-reference-card__meta small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.standard-reference-card__meta strong { font-size: 12px; font-weight: 650; }
.standard-reference-card__meta small { margin-top: 2px; color: var(--ink-mute); font-family: "Iowan Old Style", Georgia, serif; font-size: 9px; }
.standard-reference-card__meta code { flex: none; color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 8.5px; }
.standard-reference-card > p { min-height: 30px; margin: 8px 2px; color: var(--ink-mute); font-size: 9px; line-height: 1.55; }
.standard-reference-card > button {
  width: 100%;
  min-height: 31px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  color: var(--ink-soft);
  background: rgba(255,255,255,.64);
  font: inherit;
  font-size: 9.5px;
  cursor: pointer;
}
.standard-reference-card > button:hover { color: var(--ink); background: #fff; }
.standard-reference-card > button:focus-visible { outline: none; box-shadow: var(--focus); }
.candidate-reference-head { margin-top: 28px; padding-top: 22px; border-top: 1px solid var(--hairline); }

.grid[data-view="all"] {
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 350px), 1fr));
  gap: clamp(14px, 2vw, 24px);
}
.grid:not([data-view="all"]) {
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: clamp(10px, 1.7vw, 20px);
}
.concept-card {
  min-width: 0;
  height: 100%;
  padding: 12px;
  border: 1px solid var(--hairline-2);
  border-radius: 24px;
  background: rgba(255,255,255,.26);
  box-shadow: inset 0 1px rgba(255,255,255,.72);
  transition: border-color .2s var(--ease), background .2s var(--ease), box-shadow .2s var(--ease);
}
.concept-card:hover,
.concept-card:focus-within {
  border-color: var(--glass-border);
  background: rgba(255,255,255,.48);
  box-shadow: var(--shadow-soft), inset 0 1px rgba(255,255,255,.82);
}
.concept-card__head {
  min-height: 48px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 4px 5px 11px;
}
.concept-card__head h2 {
  margin: 0;
  color: var(--ink);
  font-family: "Iowan Old Style", "Songti SC", serif;
  font-size: 20px;
  font-weight: 540;
  line-height: 1.15;
  letter-spacing: -.015em;
}
.concept-card__head p {
  margin: 3px 0 0;
  color: var(--ink-mute);
  font-family: "Iowan Old Style", Georgia, serif;
  font-size: 11px;
  line-height: 1.2;
}
.concept-card__head > span {
  flex: none;
  padding: 4px 8px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  color: var(--ink-mute);
  font-size: 10px;
  line-height: 1;
}
.concept-card__variants {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}
.grid:not([data-view="all"]) .concept-card__variants { grid-template-columns: 1fr; }
.variant-card {
  position: relative;
  min-width: 0;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.62);
  border-radius: 17px;
  background: rgba(249,248,244,.62);
  box-shadow: inset 0 1px rgba(255,255,255,.75);
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
}
.variant-card--frosted {
  background:
    radial-gradient(circle at 24% 16%, rgba(255,255,255,.9), transparent 32%),
    linear-gradient(145deg, rgba(222,234,236,.7), rgba(245,238,231,.6));
}
.variant-card--apple {
  background:
    radial-gradient(circle at 72% 12%, rgba(255,255,255,.95), transparent 34%),
    linear-gradient(155deg, rgba(245,245,243,.92), rgba(230,231,228,.68));
}
.variant-card:hover,
.variant-card:focus-within {
  z-index: 2;
  transform: translateY(-3px);
  border-color: rgba(255,255,255,.92);
  box-shadow: 0 15px 34px rgba(32,31,27,.12), inset 0 1px rgba(255,255,255,.9);
}
.variant-card__open {
  width: 100%;
  display: block;
  padding: 9px 9px 10px;
  border: 0;
  border-radius: inherit;
  color: inherit;
  background: transparent;
  font: inherit;
  text-align: left;
  cursor: pointer;
}
.variant-card__open:focus-visible { outline: none; }
.variant-card__art {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
}
.variant-card__art::after {
  content: "";
  position: absolute;
  right: 18%;
  bottom: 12%;
  left: 18%;
  height: 9%;
  border-radius: 50%;
  background: rgba(32,31,27,.13);
  filter: blur(9px);
  transform: scaleY(.45);
}
.variant-card__img {
  position: relative;
  z-index: 1;
  width: 82%;
  height: 82%;
  object-fit: contain;
  filter: drop-shadow(0 8px 12px rgba(32,31,27,.10));
  transition: transform .25s var(--ease);
}
.variant-card:hover .variant-card__img,
.variant-card:focus-within .variant-card__img { transform: scale(1.045) rotate(-.5deg); }
.variant-card__label {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  padding: 1px 3px 0;
  color: var(--ink-soft);
  font-size: 10.5px;
  line-height: 1.25;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.variant-card__label i {
  width: 6px;
  height: 6px;
  flex: none;
  border-radius: 50%;
  background: #8baab2;
  box-shadow: 0 0 0 3px rgba(139,170,178,.14);
}
.variant-card--apple .variant-card__label i {
  background: #777a78;
  box-shadow: 0 0 0 3px rgba(119,122,120,.12);
}
.variant-card__download {
  position: absolute;
  z-index: 3;
  top: 8px;
  right: 8px;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255,255,255,.8);
  border-radius: 50%;
  color: var(--ink);
  background: rgba(255,255,255,.76);
  box-shadow: var(--shadow-soft);
  opacity: 0;
  transform: translateY(-4px) scale(.9);
  cursor: pointer;
  transition: opacity .18s var(--ease), transform .18s var(--ease), background .18s var(--ease);
}
.variant-card:hover .variant-card__download,
.variant-card:focus-within .variant-card__download,
.variant-card__download:focus-visible,
.variant-card.is-downloading .variant-card__download { opacity: 1; transform: none; }
.variant-card__download:hover { background: #fff; }
.variant-card__download:focus-visible { outline: none; box-shadow: var(--focus), var(--shadow-soft); }
.variant-card__reference {
  position: absolute;
  z-index: 3;
  top: 8px;
  left: 8px;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255,255,255,.8);
  border-radius: 50%;
  color: var(--ink-soft);
  background: rgba(255,255,255,.76);
  box-shadow: var(--shadow-soft);
  opacity: 0;
  transform: translateY(-4px) scale(.9);
  cursor: pointer;
  transition: opacity .18s var(--ease), transform .18s var(--ease), color .18s var(--ease), background .18s var(--ease);
}
.variant-card__reference[aria-pressed="true"] { color: #fff; background: var(--accent); opacity: 1; transform: none; }
.variant-card:hover .variant-card__reference,
.variant-card:focus-within .variant-card__reference,
.variant-card__reference:focus-visible { opacity: 1; transform: none; }
.variant-card__reference:focus-visible { outline: none; box-shadow: var(--focus), var(--shadow-soft); }
.variant-card__copy-reference {
  display: none;
  position: relative;
  z-index: 3;
  width: calc(100% - 18px);
  min-height: 30px;
  margin: 0 9px 9px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  color: var(--ink-soft);
  background: rgba(255,255,255,.66);
  font: inherit;
  font-size: 10.5px;
  cursor: pointer;
}
.grid[data-view="references"] .variant-card__copy-reference { display: block; }
.variant-card__copy-reference:hover { color: var(--ink); background: #fff; }
.variant-card__copy-reference:focus-visible { outline: none; box-shadow: var(--focus); }
.grid:not([data-view="all"]) .concept-card { padding: 10px; }
.grid:not([data-view="all"]) .concept-card__head { min-height: 53px; }
.grid:not([data-view="all"]) .variant-card__img { width: 76%; height: 76%; }
.grid[data-view="references"] { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
.grid[data-view="references"] .concept-card__variants { grid-template-columns: 1fr; }

/* 详情舞台始终保持正方形图像，避免可用高度压缩导致变形。 */
.detail__art img {
  width: min(420px, 82%);
  height: auto;
  max-height: 420px;
  aspect-ratio: 1;
}
#detail-style { color: var(--accent); }

@media (max-width: 760px) {
  .viewbar { align-items: flex-start; gap: 8px; overflow-x: auto; scrollbar-width: none; }
  .viewbar::-webkit-scrollbar { display: none; }
  .viewbar__label { padding-top: 10px; }
  .viewbar__hint { display: none; }
  .view-switch { min-width: max-content; }
  .grid[data-view="all"],
  .grid:not([data-view="all"]),
  .grid[data-view="references"] { grid-template-columns: 1fr; }
  .reference-desk__hero { align-items: stretch; flex-direction: column; gap: 16px; }
  .reference-desk__copy-all { align-self: flex-start; }
  .reference-library__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
}

@media (max-width: 640px) {
  .viewbar { padding: 3px 16px 9px; }
  .view-switch__button { padding-inline: 11px; }
  .concept-card { padding: 9px; border-radius: 20px; }
  .concept-card__head { min-height: 44px; padding: 3px 4px 9px; }
  .concept-card__head h2 { font-size: 18px; }
  .concept-card__variants { gap: 6px; }
  .variant-card { border-radius: 15px; }
  .variant-card__open { padding: 7px 7px 9px; }
  .variant-card__download { opacity: 1; transform: none; }
  .variant-card__reference { opacity: 1; transform: none; }
  .reference-desk { padding: 16px; border-radius: 20px; }
  .reference-library { margin-top: 20px; padding-top: 18px; }
  .reference-library__head,
  .candidate-reference-head { align-items: start; }
  .reference-library__head h2,
  .candidate-reference-head h2 { font-size: 17px; }
  .standard-reference-card { padding: 7px; border-radius: 15px; }
  .standard-reference-card__art { border-radius: 11px; }
  .standard-reference-card__art span { top: 6px; left: 6px; max-width: calc(100% - 12px); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .standard-reference-card__meta { display: block; }
  .standard-reference-card__meta code { display: block; margin-top: 6px; }
  .standard-reference-card > p { min-height: 44px; }
  .detail__art img { width: min(260px, 68vw); height: auto; max-height: 260px; }
}

@media (max-width: 380px) {
  .view-switch__button { padding-inline: 9px; font-size: 11px; }
  .view-switch__button small { display: none; }
  .variant-card__label { font-size: 10px; }
}

/* 详情弹窗必须在视口内形成确定高度，左右两栏各自居中/滚动。 */
.detail__panel {
  height: min(760px, calc(100dvh - 56px));
  grid-template-rows: minmax(0, 1fr);
}
.detail__stage {
  min-height: 0;
  align-self: stretch;
}
.detail__art {
  min-height: 0;
  height: 100%;
  padding: clamp(44px, 6vh, 76px);
}
.detail__art img {
  width: min(100%, 420px);
  height: min(100%, 420px);
  max-height: none;
}
.detail__body {
  min-height: 0;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}

@media (max-width: 640px) {
  .detail__panel {
    height: 94dvh;
    grid-template-rows: minmax(220px, 36dvh) minmax(0, 1fr);
  }
  .detail__stage { min-height: 0; }
  .detail__art { min-height: 0; padding: 42px 28px 22px; }
  .detail__art img {
    width: min(100%, 260px);
    height: min(100%, 260px);
    max-height: none;
  }
}

/* Apple 官方参考（仅内部页面出现） */
.reference-library--apple { margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--hairline); }
.reference-library__note { margin: 4px 0 12px; font-size: 13px; line-height: 1.6; color: var(--muted); max-width: 72ch; }
.reference-library__filters { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.reference-library__grid--dense { grid-template-columns: repeat(auto-fill, minmax(132px, 1fr)); }
.standard-reference-card--apple .standard-reference-card__art img { width: 96px; height: 96px; }
.standard-reference-card--apple p { font-size: 11px; }