/* 西西书阁 —— 视觉规范沿用 design-glass.md（暖极光底 + 磨砂玻璃 + 西西橙）
   令牌前缀 --xii-*，与后台组件库同源。 */

:root {
  /* 文字：暖棕墨阶梯 */
  --xii-ink: #4A332B;
  --xii-ink2: #8A705F;
  --xii-ink3: #A68A76;

  /* 强调：西西橙 */
  --xii-accent: #EA580C;
  --xii-accent-deep: #C2410C;
  --xii-accent-soft: rgba(234, 88, 12, .12);

  /* 语义 */
  --xii-good: #1F9D61;
  --xii-good-soft: rgba(31, 157, 97, .12);
  --xii-warn: #D97706;
  --xii-warn-soft: rgba(217, 119, 6, .13);
  --xii-bad: #DC2626;
  --xii-bad-soft: rgba(220, 38, 38, .11);
  --xii-info: #3B82F6;
  --xii-info-soft: rgba(59, 130, 246, .12);

  /* 面 */
  --xii-glass-bg: linear-gradient(135deg, rgba(255, 255, 255, .66), rgba(255, 255, 255, .38));
  --xii-glass-border: rgba(255, 255, 255, .75);
  --xii-surface: rgba(255, 255, 255, .75);
  --xii-surface-soft: rgba(74, 51, 43, .06);

  /* 形 */
  --xii-r-card: 20px;
  --xii-r-panel: 14px;
  --xii-r-input: 10px;
  --xii-r-chip: 13px;
  --xii-r-pill: 999px;

  /* 动 */
  --xii-t-fast: .15s ease;
  --xii-t-move: .22s cubic-bezier(.33, 1, .68, 1);

  /* 字 */
  --xii-font: "MiSans", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei",
              -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --xii-mono: ui-monospace, SFMono-Regular, "JetBrains Mono", Consolas, monospace;

  /* 层 */
  --xii-z-pop: 1200;
  --xii-z-modal: 2000;
  --xii-z-toast: 3000;
}

* { box-sizing: border-box; }

/* hidden 属性必须能压住 display:flex/grid —— 否则弹层会在首屏就露出来 */
[hidden] { display: none !important; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  font-family: var(--xii-font);
  color: var(--xii-ink);
  background: #FFF9F5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* ---------- 暖色极光底 ---------- */

.aurora {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(42rem 30rem at 8% -6%, rgba(255, 187, 128, .50), transparent 65%),
    radial-gradient(38rem 28rem at 96% 4%, rgba(255, 178, 208, .44), transparent 66%),
    radial-gradient(40rem 30rem at 4% 82%, rgba(205, 188, 255, .38), transparent 66%),
    radial-gradient(46rem 34rem at 78% 92%, rgba(255, 214, 170, .40), transparent 68%),
    linear-gradient(180deg, #FFF9F5, #FDF4EE);
  pointer-events: none;
}

/* 极光缓慢呼吸，给静态页一点活气；尊重「减少动态」偏好 */
.aurora i {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: .55;
  animation: drift 26s ease-in-out infinite alternate;
}
.aurora .a1 { width: 34rem; height: 34rem; left: -8rem; top: -10rem; background: rgba(255, 187, 128, .55); }
.aurora .a2 { width: 30rem; height: 30rem; right: -6rem; top: -8rem; background: rgba(255, 178, 208, .48); animation-delay: -7s; }
.aurora .a3 { width: 28rem; height: 28rem; left: -6rem; bottom: -8rem; background: rgba(205, 188, 255, .42); animation-delay: -13s; }
.aurora .a4 { width: 32rem; height: 32rem; right: -8rem; bottom: -10rem; background: rgba(255, 214, 170, .46); animation-delay: -19s; }

@keyframes drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to   { transform: translate3d(2.5rem, 2rem, 0) scale(1.12); }
}

/* ---------- 玻璃材质 ---------- */

.glass,
.search-box,
.hit,
.modal,
.result-bar,
.empty {
  background: var(--xii-glass-bg);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  backdrop-filter: blur(24px) saturate(160%);
  border: 1px solid var(--xii-glass-border);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, .85),
    0 18px 44px rgba(196, 120, 60, .13);
}

/* 不支持 backdrop-filter 时把底子提白，观感接近 */
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .glass, .search-box, .hit, .modal, .result-bar, .empty {
    background: linear-gradient(135deg, rgba(255, 255, 255, .93), rgba(255, 252, 249, .88));
  }
}

/* ---------- 主页 ---------- */

.home {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px 20px 12vh;
  gap: 22px;
}

.brand {
  text-align: center;
  animation: rise .5s cubic-bezier(.33, 1, .68, 1) both;
}

.brand-mark {
  font-size: 46px;
  line-height: 1;
  margin-bottom: 10px;
  filter: drop-shadow(0 8px 16px rgba(234, 88, 12, .22));
}

.brand-title {
  margin: 0;
  font-size: 40px;
  font-weight: 800;
  letter-spacing: .06em;
  background: linear-gradient(140deg, #F97A3D, var(--xii-accent-deep));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.brand-sub {
  margin: 10px 0 0;
  font-size: 14px;
  color: var(--xii-ink2);
  letter-spacing: .08em;
}

.search-wrap {
  width: 100%;
  max-width: 640px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  animation: rise .5s .06s cubic-bezier(.33, 1, .68, 1) both;
}

.search-box {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 8px 6px 18px;
  border-radius: var(--xii-r-pill);
  transition: box-shadow var(--xii-t-move), border-color var(--xii-t-move),
              transform var(--xii-t-move);
}

.search-box:focus-within {
  border-color: rgba(234, 88, 12, .38);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, .9),
    0 0 0 4px rgba(234, 88, 12, .10),
    0 20px 48px rgba(196, 120, 60, .20);
}

.search-icon {
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  color: var(--xii-ink3);
  flex: none;
}
.search-icon svg { width: 100%; height: 100%; }

#searchInput, #searchInput2 {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  font-family: inherit;
  font-size: 17px;
  color: var(--xii-ink);
  padding: 14px 0;
  -webkit-appearance: none;
  appearance: none;
}

#searchInput::placeholder, #searchInput2::placeholder {
  color: var(--xii-ink3);
  font-size: 15.5px;
}

/* 清掉 webkit 自带的 search 叉，避免和我们的切换按钮打架 */
input[type="search"]::-webkit-search-decoration,
input[type="search"]::-webkit-search-cancel-button { -webkit-appearance: none; }

.mode-toggle {
  flex: none;
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 650;
  color: var(--xii-accent);
  background: var(--xii-accent-soft);
  border: 1px solid rgba(234, 88, 12, .18);
  border-radius: var(--xii-r-pill);
  padding: 8px 14px;
  cursor: pointer;
  transition: background var(--xii-t-fast), transform var(--xii-t-fast),
              box-shadow var(--xii-t-fast);
  white-space: nowrap;
}
.mode-toggle:hover {
  background: rgba(234, 88, 12, .18);
  box-shadow: 0 4px 12px rgba(234, 88, 12, .16);
}
.mode-toggle:active { transform: scale(.96); }
.mode-toggle[data-mode="content"] {
  color: #fff;
  background: linear-gradient(140deg, #F97A3D, var(--xii-accent-deep));
  border-color: transparent;
  box-shadow: 0 6px 16px rgba(234, 88, 12, .28);
}

.search-actions { display: flex; gap: 10px; }

.btn {
  font-family: inherit;
  font-size: 14.5px;
  font-weight: 650;
  border: 1px solid transparent;
  border-radius: var(--xii-r-pill);
  padding: 11px 26px;
  cursor: pointer;
  transition: transform var(--xii-t-fast), box-shadow var(--xii-t-fast),
              background var(--xii-t-fast), opacity var(--xii-t-fast);
  white-space: nowrap;
}
.btn:active { transform: scale(.96); }
.btn:disabled { opacity: .55; cursor: not-allowed; transform: none; }

.btn-primary {
  color: #fff;
  background: linear-gradient(140deg, #F97A3D, var(--xii-accent-deep));
  box-shadow: 0 8px 18px rgba(234, 88, 12, .30);
}
.btn-primary:hover:not(:disabled) { box-shadow: 0 10px 24px rgba(234, 88, 12, .38); }

.btn-soft {
  color: var(--xii-ink);
  background: rgba(255, 255, 255, .62);
  border-color: rgba(255, 255, 255, .85);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .9), 0 4px 12px rgba(196, 120, 60, .10);
}
.btn-soft:hover:not(:disabled) { background: rgba(255, 255, 255, .85); }

.mode-hint {
  font-size: 12.5px;
  color: var(--xii-ink3);
  letter-spacing: .02em;
  min-height: 18px;
  animation: rise .5s .12s cubic-bezier(.33, 1, .68, 1) both;
}

/* 推荐词 */
.hot {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  max-width: 640px;
  animation: rise .5s .18s cubic-bezier(.33, 1, .68, 1) both;
}
.hot-label { font-size: 12.5px; color: var(--xii-ink3); }
.hot-list { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }

.chip {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--xii-ink2);
  background: rgba(255, 255, 255, .58);
  border: 1px solid rgba(255, 255, 255, .8);
  border-radius: var(--xii-r-pill);
  padding: 6px 13px;
  cursor: pointer;
  transition: all var(--xii-t-fast);
  white-space: nowrap;
}
.chip:hover {
  color: var(--xii-accent);
  background: var(--xii-accent-soft);
  border-color: rgba(234, 88, 12, .22);
}

.home-status {
  font-size: 13px;
  color: var(--xii-ink2);
  text-align: center;
  max-width: 560px;
  line-height: 1.6;
}

/* ---------- 结果页 ---------- */

.result {
  max-width: 880px;
  margin: 0 auto;
  padding: 22px 20px 64px;
  min-height: 100vh;
}

.result-bar {
  position: sticky;
  top: 12px;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px 8px 8px;
  border-radius: var(--xii-r-pill);
  margin-bottom: 20px;
}

.back {
  flex: none;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  color: var(--xii-ink2);
  transition: all var(--xii-t-fast);
}
.back svg { width: 20px; height: 20px; }
.back:hover { color: var(--xii-accent); background: var(--xii-accent-soft); }

.search-wrap.small { max-width: none; flex: 1; gap: 0; }
.search-wrap.small .search-box {
  padding: 2px 6px 2px 14px;
  box-shadow: none;
  border-color: transparent;
  background: transparent;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}
.search-wrap.small .search-box:focus-within {
  box-shadow: none;
  border-color: transparent;
}
.search-wrap.small input { font-size: 15px; padding: 10px 0; }

.result-meta {
  font-size: 12.5px;
  color: var(--xii-ink3);
  margin: 0 4px 14px;
  line-height: 1.7;
}
.result-meta b { color: var(--xii-ink2); font-weight: 650; }

.result-body { display: flex; flex-direction: column; gap: 12px; }

/* 结果卡 */
.hit {
  border-radius: var(--xii-r-card);
  padding: 16px 18px;
  transition: transform var(--xii-t-move), box-shadow var(--xii-t-move);
  animation: rise .34s cubic-bezier(.33, 1, .68, 1) both;
}
.hit:hover {
  transform: translateY(-2px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, .9),
    0 22px 52px rgba(196, 120, 60, .20);
}

.hit-head {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  justify-content: space-between;
}

.hit-title {
  margin: 0;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--xii-ink);
  word-break: break-word;
}
.hit-title mark {
  background: rgba(234, 88, 12, .18);
  color: var(--xii-accent-deep);
  border-radius: 4px;
  padding: 0 2px;
}

.hit-author {
  margin: 6px 0 0;
  font-size: 12.5px;
  color: var(--xii-ink2);
}

.hit-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.tag {
  font-size: 11.5px;
  font-weight: 650;
  padding: 3px 10px;
  border-radius: var(--xii-r-pill);
  background: var(--xii-surface-soft);
  color: var(--xii-ink2);
  white-space: nowrap;
}
.tag.accent { background: var(--xii-accent-soft); color: var(--xii-accent-deep); }
.tag.good { background: var(--xii-good-soft); color: var(--xii-good); }
.tag.warn { background: var(--xii-warn-soft); color: var(--xii-warn); }
.tag.mono { font-family: var(--xii-mono); font-size: 11px; }

.hit-actions {
  display: flex;
  gap: 8px;
  flex: none;
}
.hit-actions .btn { padding: 8px 16px; font-size: 13px; }

/* 内容搜索命中的原文片段 */
.hit-quote {
  margin: 12px 0 0;
  padding: 10px 12px;
  border-left: 3px solid rgba(234, 88, 12, .45);
  background: rgba(255, 255, 255, .48);
  border-radius: 0 var(--xii-r-panel) var(--xii-r-panel) 0;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--xii-ink2);
  word-break: break-word;
}

/* 空态 */
.empty {
  border-radius: var(--xii-r-card);
  padding: 48px 24px;
  text-align: center;
}
.empty-face { font-size: 40px; margin-bottom: 12px; }
.empty-title { font-size: 15.5px; font-weight: 700; margin: 0 0 8px; }
.empty-text {
  font-size: 13px;
  color: var(--xii-ink2);
  margin: 0 auto;
  max-width: 420px;
  line-height: 1.75;
}

/* 骨架屏 */
.skel {
  border-radius: var(--xii-r-card);
  height: 96px;
  background: linear-gradient(100deg,
    rgba(255, 255, 255, .40) 30%,
    rgba(255, 255, 255, .72) 50%,
    rgba(255, 255, 255, .40) 70%);
  background-size: 200% 100%;
  animation: shimmer 1.3s linear infinite;
  border: 1px solid rgba(255, 255, 255, .6);
}
@keyframes shimmer {
  from { background-position: 150% 0; }
  to   { background-position: -50% 0; }
}

/* ---------- 弹层 ---------- */

.modal-mask {
  position: fixed;
  inset: 0;
  z-index: var(--xii-z-modal);
  display: grid;
  place-items: center;
  padding: 20px;
  /* 遮罩要够实：弹层自身是半透玻璃，底下文字透出来会糊成一片 */
  background: rgba(74, 51, 43, .42);
  -webkit-backdrop-filter: blur(10px) saturate(120%);
  backdrop-filter: blur(10px) saturate(120%);
  animation: fade .18s ease both;
}

.modal {
  width: min(680px, 100%);
  max-height: min(82vh, 780px);
  border-radius: var(--xii-r-card);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  /* 弹层比普通卡片更实，保证正文可读 */
  background: linear-gradient(135deg, rgba(255, 255, 255, .96), rgba(255, 250, 246, .93));
  -webkit-backdrop-filter: blur(30px) saturate(150%);
  backdrop-filter: blur(30px) saturate(150%);
  animation: pop .24s cubic-bezier(.33, 1, .68, 1) both;
}

.modal-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 20px 22px 14px;
  border-bottom: 1px solid rgba(74, 51, 43, .07);
}
.modal-head h2 {
  margin: 0;
  font-size: 17px;
  font-weight: 750;
  line-height: 1.4;
  word-break: break-word;
}
.modal-sub {
  margin: 6px 0 0;
  font-size: 12.5px;
  color: var(--xii-ink2);
}

.icon-btn {
  flex: none;
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--xii-ink3);
  cursor: pointer;
  transition: all var(--xii-t-fast);
}
.icon-btn svg { width: 18px; height: 18px; }
.icon-btn:hover { background: var(--xii-surface-soft); color: var(--xii-ink); }

.modal-body {
  flex: 1;
  overflow-y: auto;
  padding: 8px 22px;
  overscroll-behavior: contain;
}

.chapter-list { list-style: none; margin: 0; padding: 8px 0; }
.chapter-list li {
  padding: 9px 0;
  border-bottom: 1px solid rgba(74, 51, 43, .06);
  font-size: 13.5px;
  color: var(--xii-ink);
  line-height: 1.5;
  word-break: break-word;
}
.chapter-list li:last-child { border-bottom: 0; }
.chapter-list li span { color: var(--xii-ink3); font-family: var(--xii-mono); font-size: 11px; margin-right: 8px; }

.modal-foot {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 14px 22px 18px;
  border-top: 1px solid rgba(74, 51, 43, .07);
}

/* 下载进度 */
.progress-wrap {
  padding: 22px 4px;
  text-align: center;
}
.progress-title { font-size: 14px; font-weight: 700; margin: 0 0 8px; }
.progress-text { font-size: 12.5px; color: var(--xii-ink2); margin: 0 0 16px; line-height: 1.7; }
.progress-track {
  height: 6px;
  border-radius: var(--xii-r-pill);
  background: rgba(74, 51, 43, .08);
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  width: 0;
  border-radius: var(--xii-r-pill);
  background: linear-gradient(90deg, #F5A623, var(--xii-accent));
  transition: width .3s ease;
}

/* ---------- Toast ---------- */

.toast-host {
  position: fixed;
  top: 22px;
  left: 50%;
  transform: translateX(-50%);
  z-index: var(--xii-z-toast);
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  pointer-events: none;
}

.toast {
  font-size: 13px;
  font-weight: 600;
  color: #F4EAE3;
  background: linear-gradient(150deg, rgba(62, 41, 33, .94), rgba(48, 32, 27, .90));
  border: 1px solid rgba(255, 255, 255, .10);
  border-radius: var(--xii-r-pill);
  padding: 10px 20px;
  box-shadow: 0 14px 32px rgba(74, 51, 43, .30);
  animation: toastIn .26s cubic-bezier(.33, 1, .68, 1) both;
  max-width: min(88vw, 460px);
  text-align: center;
  line-height: 1.5;
}
.toast.good { color: #C9F5DC; }
.toast.bad { color: #FFD2D2; }
.toast.out { animation: toastOut .2s ease both; }

/* ---------- 动画 ---------- */

@keyframes rise {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }
@keyframes pop {
  from { opacity: 0; transform: scale(.96) translateY(8px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}
@keyframes toastIn {
  from { opacity: 0; transform: translateY(-12px) scale(.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes toastOut {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(-10px); }
}

/* ---------- 响应式 ---------- */

@media (max-width: 620px) {
  .home { padding: 20px 16px 10vh; gap: 18px; }
  .brand-title { font-size: 32px; }
  .brand-mark { font-size: 38px; }
  #searchInput { font-size: 16px; }  /* iOS 聚焦不缩放 */
  .result { padding: 14px 14px 56px; }
  .result-bar { top: 8px; }
  .hit { padding: 14px; }
  .hit-head { flex-direction: column; gap: 10px; }
  .hit-actions { width: 100%; }
  .hit-actions .btn { flex: 1; }
  .modal { max-height: 88vh; }
}

/* 尊重系统的减少动态偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}

/* 滚动条 */
.modal-body::-webkit-scrollbar { width: 8px; }
.modal-body::-webkit-scrollbar-thumb {
  background: rgba(74, 51, 43, .16);
  border-radius: 4px;
}
.modal-body::-webkit-scrollbar-thumb:hover { background: rgba(74, 51, 43, .26); }