:root {
  --ink: #151a18;
  --muted: #68716d;
  --canvas: #f3f1eb;
  --panel: #fffdf8;
  --line: #d8d5cd;
  --line-strong: #b9b5aa;
  --accent: #c84d2b;
  --accent-dark: #9f351b;
  --success: #257052;
  --danger: #a52d26;
  --radius: 6px;
  --font: "Microsoft YaHei UI", "PingFang SC", "Noto Sans CJK SC", sans-serif;
  --display: "Bahnschrift", "Microsoft YaHei UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--canvas);
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: var(--canvas);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
}

button,
input,
textarea,
a {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  color: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

::selection {
  color: #fff;
  background: var(--accent);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.admin-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto minmax(420px, 1fr);
  gap: 24px;
  align-items: center;
  min-height: 72px;
  padding: 12px 24px;
  border-bottom: 1px solid var(--line);
  background: rgb(243 241 235 / 94%);
  backdrop-filter: blur(14px);
}

.admin-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  justify-self: start;
}

.admin-brand > span {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  color: #fff;
  background: var(--ink);
  font-family: var(--display);
  font-size: 0.76rem;
  font-weight: 700;
}

.admin-brand div {
  display: grid;
  gap: 2px;
}

.admin-brand strong {
  font-size: 0.88rem;
}

.admin-brand small {
  color: var(--muted);
  font-family: var(--display);
  font-size: 0.56rem;
  letter-spacing: 0.13em;
}

.admin-header__status {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--muted);
  font-size: 0.76rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #bc8a2f;
  box-shadow: 0 0 0 4px rgb(188 138 47 / 14%);
}

.status-dot.is-ready {
  background: var(--success);
  box-shadow: 0 0 0 4px rgb(37 112 82 / 14%);
}

.status-dot.is-error {
  background: var(--danger);
  box-shadow: 0 0 0 4px rgb(165 45 38 / 12%);
}

.admin-header__actions {
  display: flex;
  gap: 8px;
  justify-self: end;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 0 14px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 700;
  transition:
    color 160ms ease,
    border-color 160ms ease,
    background-color 160ms ease,
    transform 160ms ease;
}

.button svg {
  width: 16px;
  height: 16px;
}

.button:active {
  transform: translateY(1px);
}

.button:disabled {
  opacity: 0.48;
  cursor: not-allowed;
}

.button--primary {
  color: #fff;
  background: var(--accent);
  box-shadow: 0 8px 22px rgb(200 77 43 / 22%);
}

.button--primary:hover {
  background: var(--accent-dark);
}

.button--ghost {
  border-color: var(--line-strong);
  color: var(--ink);
  background: #fff;
}

.button--ghost:hover {
  border-color: var(--ink);
  color: #fff;
  background: var(--ink);
}

.admin-layout {
  display: grid;
  grid-template-columns: 238px minmax(0, 1fr);
  min-height: calc(100vh - 72px);
}

.admin-sidebar {
  position: sticky;
  top: 72px;
  display: flex;
  flex-direction: column;
  height: calc(100vh - 72px);
  padding: 22px 14px;
  border-right: 1px solid var(--line);
}

.admin-sidebar nav {
  display: grid;
  gap: 4px;
}

.admin-sidebar nav button {
  display: flex;
  min-height: 50px;
  align-items: center;
  gap: 12px;
  padding: 0 13px;
  border: 0;
  border-radius: var(--radius);
  color: var(--muted);
  background: transparent;
  cursor: pointer;
  text-align: left;
  transition:
    color 160ms ease,
    background-color 160ms ease;
}

.admin-sidebar nav button:hover {
  color: var(--ink);
  background: #e8e5dd;
}

.admin-sidebar nav button.is-active {
  color: #fff;
  background: var(--accent);
}

.admin-sidebar nav svg {
  width: 18px;
  height: 18px;
}

.admin-sidebar__security {
  display: grid;
  gap: 9px;
  margin-top: auto;
  padding: 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 12px 32px rgb(21 26 24 / 8%);
}

.admin-sidebar__security label {
  font-size: 0.75rem;
  font-weight: 700;
}

.admin-sidebar__security input {
  width: 100%;
  min-width: 0;
  height: 38px;
  padding: 0 10px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  background: #fff;
}

.admin-sidebar__security .button {
  width: 100%;
  min-height: 42px;
  border-color: var(--ink);
  color: #fff;
  background: var(--ink);
}

.admin-sidebar__security .button:hover {
  border-color: var(--accent);
  background: var(--accent);
}

.admin-sidebar__security p {
  margin: 0;
  color: var(--muted);
  font-size: 0.66rem;
  line-height: 1.6;
}

.admin-main {
  width: 100%;
  min-width: 0;
  padding: clamp(24px, 4vw, 54px);
}

.admin-section {
  display: none;
  width: min(100%, 1180px);
  margin: 0 auto;
}

.admin-section.is-active {
  display: block;
}

.section-title {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 34px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.section-title p {
  margin: 0 0 9px;
  color: var(--accent);
  font-family: var(--display);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.15em;
}

.section-title h1 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(2rem, 4vw, 3.4rem);
  font-weight: 600;
}

.section-title > span {
  max-width: 30rem;
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.7;
  text-align: right;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.form-grid label,
.music-fields label {
  display: grid;
  gap: 8px;
}

.form-grid label > span,
.music-fields label > span {
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 700;
}

.form-grid input,
.form-grid textarea,
.music-fields input,
.editor-card input,
.editor-card textarea,
.photo-editor input,
.photo-editor select {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  color: var(--ink);
  background: var(--panel);
  transition:
    border-color 160ms ease,
    box-shadow 160ms ease;
}

.form-grid input,
.music-fields input,
.editor-card input,
.photo-editor input,
.photo-editor select {
  height: 44px;
  padding: 0 12px;
}

.form-grid textarea,
.editor-card textarea {
  padding: 12px;
  line-height: 1.75;
  resize: vertical;
}

.form-grid input:focus,
.form-grid textarea:focus,
.music-fields input:focus,
.editor-card input:focus,
.editor-card textarea:focus,
.photo-editor input:focus,
.photo-editor select:focus {
  border-color: var(--accent);
  outline: none;
  box-shadow: 0 0 0 3px rgb(200 77 43 / 10%);
}

.form-grid__wide {
  grid-column: 1 / -1;
}

.editor-list {
  display: grid;
  gap: 18px;
}

.editor-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.editor-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  background: #ece9e1;
}

.editor-card__header strong {
  overflow: hidden;
  font-size: 0.82rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.editor-card__actions,
.photo-editor__actions {
  display: flex;
  gap: 6px;
}

.icon-button {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #fff;
  cursor: pointer;
}

.icon-button:hover {
  border-color: var(--line-strong);
  background: #f7f5ef;
}

.icon-button--danger:hover {
  border-color: var(--danger);
  color: #fff;
  background: var(--danger);
}

.icon-button svg {
  width: 16px;
  height: 16px;
}

.editor-card__body {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 16px;
  padding: 18px;
}

.editor-card__body label {
  display: grid;
  gap: 7px;
}

.editor-card__body label > span {
  color: var(--muted);
  font-size: 0.69rem;
}

.editor-card__wide {
  grid-column: 1 / -1;
}

.photo-editor {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.photo-editor__item {
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr);
  gap: 16px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.photo-editor__thumb {
  position: relative;
  overflow: hidden;
  min-height: 150px;
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgb(200 77 43 / 12%), transparent),
    #e5e2da;
}

.photo-editor__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
}

.photo-editor__thumb.has-image img {
  opacity: 1;
}

.photo-editor__thumb span {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--muted);
  font-family: var(--display);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
}

.photo-editor__thumb.has-image span {
  display: none;
}

.photo-editor__fields {
  display: grid;
  align-content: start;
  gap: 10px;
  min-width: 0;
}

.photo-editor__fields label {
  display: grid;
  gap: 5px;
}

.photo-editor__fields label > span {
  color: var(--muted);
  font-size: 0.66rem;
}

.photo-editor__fields input,
.photo-editor__fields select {
  height: 38px;
  font-size: 0.74rem;
}

.photo-editor__upload {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 2px;
}

.photo-editor__upload span {
  overflow: hidden;
  color: var(--muted);
  font-size: 0.65rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.asset-list {
  border-top: 1px solid var(--line);
}

.asset-row {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) 90px minmax(240px, 0.8fr);
  gap: 22px;
  align-items: center;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.asset-row__copy {
  display: grid;
  gap: 6px;
}

.asset-row__copy strong {
  font-size: 0.86rem;
}

.asset-row__copy span {
  color: var(--muted);
  font-size: 0.7rem;
}

.asset-row__preview {
  display: grid;
  width: 76px;
  height: 54px;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--line);
  color: var(--muted);
  background: #e5e2da;
  font-family: var(--display);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
}

.asset-row__preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.asset-row input[type="file"] {
  width: 100%;
  min-width: 0;
  color: var(--muted);
  font-size: 0.72rem;
}

.asset-row input[type="file"]::file-selector-button {
  min-height: 36px;
  margin-right: 12px;
  padding: 0 12px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  color: var(--ink);
  background: #fff;
  cursor: pointer;
}

.music-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 28px;
}

.admin-toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 50;
  max-width: min(420px, calc(100vw - 40px));
  padding: 13px 16px;
  border: 1px solid rgb(255 255 255 / 16%);
  border-radius: var(--radius);
  color: #fff;
  background: var(--ink);
  box-shadow: 0 18px 45px rgb(0 0 0 / 18%);
  font-size: 0.78rem;
  visibility: hidden;
  opacity: 0;
  transform: translateY(10px);
  transition:
    opacity 180ms ease,
    transform 180ms ease,
    visibility 0s linear 180ms;
}

.admin-toast.is-visible {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0s;
}

.admin-toast.is-error {
  background: var(--danger);
}

.admin-toast.is-success {
  background: var(--success);
}

@media (max-width: 1080px) {
  .admin-header {
    grid-template-columns: 1fr auto;
  }

  .admin-header__status {
    display: none;
  }

  .admin-layout {
    grid-template-columns: 1fr;
  }

  .admin-sidebar {
    position: static;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(250px, 0.7fr);
    gap: 18px;
    height: auto;
    padding: 14px 20px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .admin-sidebar nav {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .admin-sidebar nav button {
    justify-content: center;
  }

  .admin-sidebar__security {
    margin-top: 0;
  }
}

@media (max-width: 760px) {
  body {
    padding-bottom: 82px;
  }

  .admin-header {
    position: static;
    grid-template-columns: 1fr;
    padding: 14px 16px;
  }

  .admin-header__actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 100%;
  }

  .admin-header__actions .button {
    min-height: 44px;
    padding: 0 8px;
    font-size: 0.68rem;
  }

  .admin-header__actions #save-content {
    position: fixed;
    right: 16px;
    bottom: 16px;
    left: 16px;
    z-index: 45;
    min-height: 52px;
    box-shadow: 0 16px 42px rgb(200 77 43 / 34%);
  }

  .admin-sidebar {
    grid-template-columns: 1fr;
  }

  .admin-sidebar nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .admin-main {
    padding: 28px 16px 108px;
  }

  .section-title {
    align-items: flex-start;
    flex-direction: column;
  }

  .section-title > span {
    text-align: left;
  }

  .form-grid,
  .photo-editor,
  .music-fields {
    grid-template-columns: 1fr;
  }

  .editor-card__body {
    grid-template-columns: 1fr;
  }

  .asset-row {
    grid-template-columns: 1fr 76px;
  }

  .asset-row input[type="file"] {
    grid-column: 1 / -1;
  }

  .admin-toast {
    right: 16px;
    bottom: 84px;
    left: 16px;
  }
}