/* page-studio-v9.css · 资料站 v9 AI 海报工作台 · [STUDIO]
   body → grain/grid → .v9-studio-shell(min-h:100dvh) →
      [shell-header: tab-bar + hero-coord]
      [shell-main: editor-scroll(表单)+ action-buttons + preview-sticky(3:4合成预览)]
      [shell-footer: v9-footer / 合规条]
   手机优先：≤640px 时 preview 固定在 screen 底半部，editor 占据上半部滚动
   平板/桌面：左 55% 编辑区（sticky to top）/ 右 45% 合成预览（sticky to top）
*/

@layer page-shell {
  .v9-studio-shell {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    min-height: 100dvh;
    padding-top: calc(var(--safe-top) + 64px);
    padding-bottom: calc(var(--safe-bottom));
    max-width: 1440px;
    margin: 0 auto;
  }

  /* 手机端钉底预览(固定 ~48~54dvh)会盖住尾部 sibling 披露/footer：预留安全 padding-bottom */
  @media (max-width: 959px) {
    .v9-studio-shell {
      /* 披露(60) + 页脚(200) + 预览最大高度(54dvh) + 间距(16+24) + safe_bottom */
      padding-bottom: calc(58dvh + 24px + 220px + var(--safe-bottom));
    }
  }
  @media (max-width: 430px) {
    .v9-studio-shell {
      padding-bottom: calc(54dvh + 24px + 220px + var(--safe-bottom));
    }
  }

  /* 顶部 hero banner（替换旧 atmosphere） */
  .v9-studio-hero {
    position: relative;
    padding: var(--g-md) var(--g-md) var(--g-lg) var(--g-md);
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
    background:
      linear-gradient(180deg, rgba(3, 17, 30, 0.15) 0%, var(--depth-1) 100%),
      linear-gradient(180deg, rgba(3, 17, 30, 0.45) 0%, rgba(3, 17, 30, 0.9) 85%),
      url('/v9-assets/img/hero-studio-cover.jpg') center/cover no-repeat;
    overflow: hidden;
    isolation: isolate;
    border-bottom: 1px solid var(--glass-border);
  }
  .v9-studio-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
      linear-gradient(90deg, rgba(232,180,90,0.08) 0%, transparent 50%, rgba(232,180,90,0.05) 100%);
    pointer-events: none;
    z-index: -1;
  }

  .v9-studio-hero__coord {
    font-family: "JetBrains Mono", monospace;
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--gold-deep);
    margin-bottom: var(--g-sm);
  }
  .v9-studio-hero__title {
    font-family: "Noto Serif SC", "Songti SC", serif;
    font-weight: 700;
    font-size: 24px;
    line-height: 1.2;
    color: var(--foam);
    margin: 0 0 var(--g-xs) 0;
  }
  .v9-studio-hero__title .gold { color: var(--gold); font-style: italic; }
  .v9-studio-hero__tag {
    font-size: 13px;
    color: var(--foam-dim);
    margin: 0 0 var(--g-md) 0;
    line-height: 1.55;
  }

  /* ══ 模板 Tab 切换栏（沙金 underline + 玻璃态 pill） ══ */
  .v9-studio-tabs {
    display: flex;
    gap: 8px;
    background: var(--glass-float);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: 6px;
    width: 100%;
    overflow-x: auto;
    overscroll-behavior-x: contain;
    scrollbar-width: none;
  }
  .v9-studio-tabs::-webkit-scrollbar { display: none; }

  .v9-studio-tab {
    flex: 1 1 0;
    min-width: 96px;
    padding: 10px 14px;
    border-radius: calc(var(--radius-xl) - 4px);
    background: transparent;
    border: 0;
    color: var(--foam-dim);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.02em;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    white-space: nowrap;
    transition: transform 150ms var(--ease-standard),
                color 150ms var(--ease-standard),
                background 200ms var(--ease-standard);
    transform: scale(1);
    will-change: transform;
    cursor: pointer;
  }
  .v9-studio-tab:active { transform: scale(0.97); }

  .v9-studio-tab .tab-num {
    font-family: "JetBrains Mono", monospace;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 999px;
    background: rgba(232, 180, 90, 0.14);
    color: var(--gold-deep);
    letter-spacing: 0.06em;
  }

  .v9-studio-tab[aria-selected="true"] {
    background: linear-gradient(135deg, var(--gold) 0%, var(--gold-deep) 100%);
    color: var(--depth-1);
    box-shadow:
      0 10px 26px rgba(232, 180, 90, 0.28),
      0 0 0 1px rgba(255, 255, 255, 0.18) inset;
  }
  .v9-studio-tab[aria-selected="true"] .tab-num {
    background: rgba(10, 50, 88, 0.25);
    color: var(--depth-1);
  }

  @media (min-width: 960px) {
    .v9-studio-hero { padding: var(--g-xl); }
    .v9-studio-hero__title { font-size: 34px; }
    .v9-studio-hero__tag { font-size: 14px; }
    .v9-studio-tab { padding: 12px 18px; }
  }
}

@layer page-main {
  /* ══ 主舞台 ══ */
  .v9-studio-main {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--g-md);
    padding: var(--g-md);
    /* 手机端钉底 preview 占 48dvh，这里预留空间，防止编辑器尾部被盖 */
    padding-bottom: calc(54dvh + var(--safe-bottom));
  }

  @media (min-width: 960px) {
    .v9-studio-main {
      grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
      align-items: start;
      gap: 48px;
      padding: var(--g-2xl);
      padding-bottom: var(--g-2xl);
    }
  }

  /* 左：编辑面板（手机：预览以上；桌面 sticky） */
  .v9-studio-editor {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: var(--g-lg);
  }
  @media (min-width: 960px) {
    .v9-studio-editor { position: sticky; top: 96px; }
  }

  .v9-studio-card {
    position: relative;
    padding: var(--g-lg);
    background: var(--glass-panel);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-panel);
  }
  .v9-studio-card + .v9-studio-card { margin-top: 0; }

  .v9-studio-card__title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--g-md);
  }
  .v9-studio-card__title h3 {
    margin: 0;
    font-family: "Noto Serif SC", serif;
    font-weight: 700;
    font-size: 16px;
    color: var(--foam);
  }
  .v9-studio-card__title .pill {
    padding: 4px 10px;
    border-radius: 999px;
    font-family: "JetBrains Mono", monospace;
    font-size: 10px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--gold-deep);
    background: rgba(232, 180, 90, 0.12);
    border: 1px solid rgba(232, 180, 90, 0.3);
  }

  /* ===== 表单 ===== */
  .v9-fld {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: var(--g-md);
  }
  .v9-fld__row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--g-md);
  }
  .v9-fld label {
    font-size: 12px;
    color: var(--foam-dim);
    letter-spacing: 0.04em;
    font-weight: 500;
  }
  .v9-fld label .req { color: var(--gold); margin-left: 4px; }

  .v9-input,
  .v9-textarea,
  .v9-select {
    width: 100%;
    padding: 12px 14px;
    border-radius: var(--radius-md);
    border: 1px solid var(--glass-border);
    background: rgba(10, 50, 88, 0.4);
    color: var(--foam);
    font-size: 14px;
    line-height: 1.4;
    outline: none;
    transition: border-color 150ms var(--ease-standard),
                box-shadow 150ms var(--ease-standard),
                background 150ms var(--ease-standard);
  }
  .v9-input:focus,
  .v9-textarea:focus,
  .v9-select:focus {
    border-color: var(--gold);
    background: rgba(10, 50, 88, 0.6);
    box-shadow: 0 0 0 3px rgba(232, 180, 90, 0.18);
  }
  .v9-textarea { resize: vertical; min-height: 72px; font-family: inherit; }

  .v9-counter {
    align-self: flex-end;
    margin-top: -2px;
    font-family: "JetBrains Mono", monospace;
    font-size: 10.5px;
    color: var(--foam-dim);
    opacity: 0.75;
    letter-spacing: 0.05em;
  }
  .v9-counter.over { color: #ff8a80; opacity: 1; }

  /* ===== 色点选择（羊皮纸 / 工分主题色） ===== */
  .v9-swatches {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
  }
  .v9-swatch {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 2px solid transparent;
    background-clip: padding-box;
    cursor: pointer;
    transition: transform 150ms var(--ease-standard),
                border-color 150ms var(--ease-standard);
    box-shadow: 0 0 0 1px rgba(255,255,255,0.06) inset,
                0 3px 10px rgba(0,0,0,0.3);
  }
  .v9-swatch:active { transform: scale(0.95); }
  .v9-swatch[data-checked="1"] {
    border-color: var(--gold);
    box-shadow: 0 0 0 3px rgba(232,180,90,0.18), 0 3px 10px rgba(0,0,0,0.3);
  }

  /* ===== 文件上传 ===== */
  .v9-upload {
    position: relative;
    border: 1px dashed var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--g-md);
    display: grid;
    grid-template-columns: 48px 1fr auto;
    gap: var(--g-md);
    align-items: center;
    background: rgba(10, 50, 88, 0.22);
    cursor: pointer;
    transition: border-color 150ms var(--ease-standard);
  }
  .v9-upload:hover { border-color: var(--gold); }
  .v9-upload__icon {
    width: 48px; height: 48px; border-radius: 12px;
    background: linear-gradient(135deg, var(--parchment), rgba(247,241,227,0.6));
    display: grid; place-items: center;
    border: 1px solid rgba(232, 180, 90, 0.35);
    color: var(--gold-deep);
  }
  .v9-upload__body strong { display:block; font-size: 13px; color: var(--foam); margin-bottom: 2px; }
  .v9-upload__body span { font-size: 11.5px; color: var(--foam-dim); line-height: 1.5; }
  .v9-upload__thumb {
    width: 48px; height: 48px; border-radius: 10px; object-fit: cover;
    box-shadow: 0 0 0 1px rgba(232,180,90,0.3);
  }
  .v9-upload input[type="file"] { display: none; }

  /* ===== 操作按钮组（卡片内的一组 CTA） ===== */
  .v9-actions {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--g-md);
    margin-top: var(--g-md);
  }
  @media (min-width: 640px) {
    .v9-actions { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  }
  @media (min-width: 960px) {
    .v9-actions { grid-template-columns: 1fr; }
  }
  .v9-actions .v9-btn-gold,
  .v9-actions .v9-btn-ghost,
  .v9-actions .v9-btn-mini {
    width: 100%;
    padding: 14px var(--g-md);
    font-weight: 700;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: transform 150ms var(--ease-standard);
    border: 1px solid transparent;
    transform: scale(1);
    will-change: transform;
  }
  .v9-actions .v9-btn-gold:active,
  .v9-actions .v9-btn-ghost:active,
  .v9-actions .v9-btn-mini:active { transform: scale(0.97); }
  .v9-actions .v9-btn-gold {
    background: linear-gradient(135deg, var(--gold) 0%, var(--gold-deep) 100%);
    color: var(--depth-1);
    box-shadow: 0 10px 28px rgba(232,180,90,0.28);
  }
  .v9-actions .v9-btn-ghost {
    background: var(--glass-float);
    border-color: var(--glass-border);
    color: var(--foam);
  }
  .v9-actions .v9-btn-mini {
    background: transparent;
    border-style: dashed;
    border-color: var(--glass-border);
    color: var(--foam-dim);
    font-weight: 600;
    padding: 12px var(--g-md);
  }
  .v9-actions .v9-btn-mini:hover { color: var(--gold); border-color: var(--gold); }
  .v9-actions .v9-btn-gold[disabled],
  .v9-actions .v9-btn-ghost[disabled],
  .v9-actions .v9-btn-mini[disabled] {
    opacity: 0.55; cursor: not-allowed; transform: none !important;
    box-shadow: none;
  }
  .v9-actions .v9-btn-gold.is-loading {
    position: relative; color: transparent;
  }
  .v9-actions .v9-btn-gold.is-loading::after {
    content: '';
    position: absolute;
    width: 18px; height: 18px;
    border-radius: 50%;
    border: 2px solid rgba(10, 50, 88, 0.35);
    border-top-color: var(--depth-1);
    left: 50%; top: 50%;
    transform: translate(-50%, -50%);
    animation: studio-spin 0.9s linear infinite;
  }
  @keyframes studio-spin { to { transform: translate(-50%, -50%) rotate(360deg); } }

  /* 合规 · 2x2 披露卡片 */
  .v9-studio-compliance {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--g-sm);
    margin-top: var(--g-md);
  }
  .v9-disclaim-item {
    display: grid;
    grid-template-columns: 22px 1fr;
    gap: var(--g-sm);
    align-items: flex-start;
    padding: 10px 12px;
    background: var(--glass-float);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
  }
  .v9-disclaim-item__idx {
    width: 22px;
    height: 22px;
    border-radius: 6px;
    background: rgba(232, 180, 90, 0.15);
    color: var(--gold);
    font-family: "JetBrains Mono", monospace;
    font-weight: 700;
    font-size: 11px;
    display: grid;
    place-items: center;
  }
  .v9-disclaim-item__txt strong { display: block; font-size: 12.5px; color: var(--foam); margin-bottom: 2px; }
  .v9-disclaim-item__txt span { font-size: 11.5px; color: var(--foam-dim); line-height: 1.5; }
}

@layer page-preview {
  /* ══ 右：合成预览（手机钉底，桌面 sticky） ══ */
  .v9-studio-preview {
    position: relative;
  }
  @media (max-width: 959px) {
    .v9-studio-preview {
      position: fixed;
      bottom: 0;
      left: 0; right: 0;
      z-index: 20;
      padding: 0;
      /* 手机端限高：上半屏留给 editor 滚动、下半屏钉底预览 + CTA 条 */
      height: auto;
      max-height: 54dvh;
      background: linear-gradient(180deg, transparent 0%, rgba(3,17,30,0.86) 12%, var(--depth-1) 100%);
      backdrop-filter: blur(10px);
      border-top: 1px solid var(--glass-border);
      box-shadow: 0 -12px 40px rgba(0,0,0,0.65);
      overflow: hidden;
      display: grid;
      grid-template-columns: 1fr;
      grid-template-rows: minmax(0, 1fr) auto;
    }
    /* 预览内部内容：padding 只在容器内部子结构加，不占外层高度 */
    .v9-studio-preview > .v9-preview-toolbar,
    .v9-studio-preview > .v9-studio-preview__frame,
    .v9-studio-preview > [style] {
      margin-left: var(--g-md);
      margin-right: var(--g-md);
    }
    .v9-studio-preview > .v9-preview-toolbar {
      padding: 6px 0 4px 0;
    }
    .v9-studio-preview > .v9-studio-preview__frame { margin: 0 auto; max-width: min(420px, 58dvw); width: calc(100% - 2 * var(--g-md)); }
    /* 手机端 tip 区折叠，不抢屏幕空间 */
    .v9-studio-preview .v9-studio-preview__tip { display: none; }
    .v9-studio-preview.is-expand-tip .v9-studio-preview__tip { display: block; }
  }

  /* 针对真正小屏 (<=430px) 再收一层预览框的宽度，防止 3:4 高度堆上 */
  @media (max-width: 430px) {
    .v9-studio-preview > .v9-studio-preview__frame {
      max-width: 48dvw;
    }
    .v9-studio-preview { max-height: 50dvh; }
  }

  @media (min-width: 960px) {
    .v9-studio-preview { position: sticky; top: 96px; }
  }

  .v9-studio-preview__frame {
    position: relative;
    width: 100%;
    max-width: 420px;
    margin: 0 auto;
    aspect-ratio: 3 / 4;
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: var(--depth-2);
    box-shadow: var(--shadow-panel), 0 38px 96px rgba(0,0,0,0.55);
    border: 1px solid var(--glass-border);
    flex: 0 0 auto;
  }

  .v9-studio-preview__frame canvas,
  .v9-studio-preview__frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    user-select: none;
    -webkit-user-drag: none;
  }

  /* 预览区顶部工具栏：实时/合成/分辨率 */
  .v9-preview-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2px var(--g-sm) 2px;
  }
  .v9-preview-toolbar__title {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: "JetBrains Mono", monospace;
    font-size: 11px;
    letter-spacing: 0.1em;
    color: var(--gold-deep);
    text-transform: uppercase;
  }
  .v9-preview-toolbar__title .dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: #4ade80; box-shadow: 0 0 10px rgba(74, 222, 128, 0.6);
    animation: studio-pulse 1.8s ease-in-out infinite;
  }
  @keyframes studio-pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(0.88); }
  }
  .v9-preview-toolbar__res {
    font-family: "JetBrains Mono", monospace;
    font-size: 10.5px;
    color: var(--foam-dim);
    opacity: 0.75;
    padding: 2px 8px;
    border-radius: 999px;
    border: 1px solid var(--glass-border);
    background: var(--glass-float);
  }

  /* 四角免责 */
  .v9-preview-frame__corners {
    position: absolute;
    inset: 0;
    pointer-events: none;
  }
  .v9-pc-chip {
    position: absolute;
    padding: 4px 8px;
    border-radius: 999px;
    font-size: 10px;
    letter-spacing: 0.03em;
    color: var(--foam);
    background: rgba(10, 50, 88, 0.82);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(6px);
    white-space: nowrap;
    transform: translate(-50%, -50%);
  }
  .v9-pc-chip.tl { top: 12px; left: 12px; transform: translate(0,0); }
  .v9-pc-chip.tr { top: 12px; right: 12px; transform: translate(0,0); }
  .v9-pc-chip.bl { bottom: 12px; left: 12px; transform: translate(0,0); }
  .v9-pc-chip.br { bottom: 12px; right: 12px; transform: translate(0,0); }
  .v9-pc-chip .d {
    display: inline-block; width: 5px; height: 5px; border-radius: 50%;
    background: var(--gold); margin-right: 4px; vertical-align: middle;
  }

  @media (max-width: 959px) {
    .v9-pc-chip { font-size: 9px; padding: 3px 6px; }
  }
}