/* ===== add-item.css - 新增單品頁 =====
 * 由 pages/add-item.php 透過 $pageStyles 載入。class 一律 ai- 前綴；
 * 全站變數都附 fallback（style.css 改名也不會壞）。手機優先，360px 不可橫向捲動。
 */
.ai-wrap {
    --ai-primary: var(--primary, #e74c3c);
    --ai-primary-dark: var(--primary-dark, #c0392b);
    --ai-primary-soft: #fdecea;
    --ai-text: var(--dark, #2c3e50);
    --ai-muted: #6b7280;
    --ai-line: #e5e7eb;
    --ai-surface: var(--white, #fff);
    --ai-soft: #f6f7f9;
    --ai-radius: var(--radius, 12px);
    --ai-ok: #1e7d4f;
    --ai-err: #c0392b;
    --ai-star: #f5b301;

    max-width: 680px;
    margin: 0 auto;
    padding: 20px 16px 0;
    color: var(--ai-text);
    font-family: var(--font, 'Noto Sans TC', -apple-system, BlinkMacSystemFont, sans-serif);
    line-height: 1.55;
}
@supports (color: color-mix(in srgb, red 10%, white)) {
    .ai-wrap { --ai-primary-soft: color-mix(in srgb, var(--ai-primary) 9%, #fff); }
}
.ai-wrap *, .ai-wrap *::before, .ai-wrap *::after { box-sizing: border-box; }
.ai-wrap [hidden] { display: none !important; }
.ai-wrap :is(button, a, [tabindex]):focus-visible {
    outline: 2px solid var(--ai-primary);
    outline-offset: 2px;
}

/* ----- 標題 / 提示列 ----- */
.ai-head { margin: 4px 0 16px; }
.ai-title { font-size: 1.5rem; font-weight: 900; margin: 0 0 4px; line-height: 1.3; }
.ai-lead { margin: 0; color: var(--ai-muted); font-size: 0.95rem; }

.ai-login {
    display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px 12px;
    padding: 14px 16px; margin-bottom: 12px;
    background: #fff8e6; border: 1px solid #f1d28a; border-radius: calc(var(--ai-radius) + 2px);
}
.ai-login-text { display: flex; flex-direction: column; gap: 2px; flex: 1 1 220px; min-width: 0; }
.ai-login-text span { font-size: 0.85rem; color: #6b5a2e; }
.ai-draft {
    display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 6px 10px;
    padding: 10px 14px; margin-bottom: 12px; font-size: 0.88rem;
    background: #eef6ff; border: 1px solid #c9def5; border-radius: var(--ai-radius);
}

/* ----- 步驟卡片 ----- */
.ai-form { padding-bottom: 8px; }
.ai-step {
    background: var(--ai-surface);
    border: 1px solid var(--ai-line);
    border-radius: calc(var(--ai-radius) + 4px);
    padding: 16px;
    margin-bottom: 12px;
    scroll-margin-top: 80px;
}
.ai-step-head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.ai-step-head h2 { margin: 0; font-size: 1.1rem; font-weight: 800; line-height: 1.3; }
.ai-step-no {
    flex: 0 0 26px; width: 26px; height: 26px; border-radius: 50%;
    display: inline-flex; align-items: center; justify-content: center;
    background: var(--ai-primary); color: #fff; font-size: 0.85rem; font-weight: 800;
}
.ai-step-opt .ai-step-no { background: var(--ai-soft); color: var(--ai-muted); border: 1px solid var(--ai-line); }
.ai-step-toggle {
    width: 100%; display: flex; align-items: center; gap: 10px;
    padding: 0; margin: 0; border: 0; background: none; cursor: pointer;
    font: inherit; color: inherit; text-align: left; border-radius: 8px;
}
.ai-step-toggle-text { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.ai-step-toggle-text strong { font-size: 1.05rem; font-weight: 800; line-height: 1.3; }
.ai-step-toggle-text small { color: var(--ai-muted); font-size: 0.83rem; }
.ai-chev {
    flex: none; width: 9px; height: 9px; margin: 0 6px 4px 0;
    border-right: 2px solid var(--ai-muted); border-bottom: 2px solid var(--ai-muted);
    transform: rotate(45deg); transition: transform 0.2s;
}
.ai-step.is-open .ai-chev { transform: rotate(-135deg); margin-bottom: -4px; }
.ai-step-body { padding-top: 14px; }

/* ----- 表單元件 ----- */
.ai-label { display: block; margin: 14px 0 6px; font-size: 0.9rem; font-weight: 700; }
.ai-step-body > .ai-label:first-child { margin-top: 0; }
.ai-opt { margin-left: 4px; font-size: 0.8rem; font-weight: 400; color: var(--ai-muted); }
.ai-sr { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.ai-input {
    width: 100%; min-width: 0; margin: 0;
    padding: 11px 12px;
    font: inherit; font-size: 16px; /* iOS 不放大 */
    color: var(--ai-text); background: var(--ai-surface);
    border: 1.5px solid var(--ai-line); border-radius: 10px;
    transition: border-color 0.15s, box-shadow 0.15s;
    -webkit-appearance: none; appearance: none;
}
.ai-input::placeholder { color: #9aa1ab; }
.ai-input:focus { outline: none; border-color: var(--ai-primary); box-shadow: 0 0 0 3px var(--ai-primary-soft); }
.ai-input[aria-invalid="true"] { border-color: var(--ai-err); }
.ai-input-lg { padding: 13px 14px; font-size: 1.05rem; font-weight: 600; }
textarea.ai-input { resize: vertical; min-height: 84px; line-height: 1.5; }
select.ai-input {
    padding-right: 30px; cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%236b7280' stroke-width='2'/%3E%3C/svg%3E");
    background-repeat: no-repeat; background-position: right 10px center;
}
.ai-field-icon { position: relative; flex: 1 1 220px; min-width: 0; }
.ai-field-icon-glyph { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); font-size: 0.95rem; opacity: 0.55; pointer-events: none; }
.ai-field-icon .ai-input { padding-left: 38px; }
.ai-prefix { position: relative; max-width: 220px; }
.ai-prefix > span { position: absolute; left: 13px; top: 50%; transform: translateY(-50%); color: var(--ai-muted); font-weight: 700; pointer-events: none; }
.ai-prefix .ai-input { padding-left: 28px; }
.ai-counter { margin-top: 4px; text-align: right; font-size: 0.75rem; color: var(--ai-muted); }
.ai-error { margin: 6px 0 0; font-size: 0.85rem; font-weight: 600; color: var(--ai-err); }
.ai-error::before { content: "⚠ "; }
.ai-hint { margin: 6px 0 0; font-size: 0.82rem; color: var(--ai-ok); }
.ai-grid-2 { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 10px; }

/* ----- 按鈕 ----- */
.ai-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    min-height: 44px; padding: 10px 16px;
    font: inherit; font-size: 0.95rem; font-weight: 700; line-height: 1.2; white-space: nowrap;
    border: 1.5px solid transparent; border-radius: 10px; cursor: pointer; text-decoration: none;
    transition: background 0.15s, border-color 0.15s, color 0.15s, transform 0.1s;
}
.ai-btn:active { transform: translateY(1px); }
.ai-btn:disabled { opacity: 0.65; cursor: progress; transform: none; }
.ai-btn-primary { background: var(--ai-primary); color: #fff; }
.ai-btn-primary:hover { background: var(--ai-primary-dark); color: #fff; }
.ai-btn-soft { background: var(--ai-surface); color: var(--ai-text); border-color: var(--ai-line); }
.ai-btn-soft:hover { border-color: var(--ai-primary); color: var(--ai-primary); }
.ai-btn-sm { min-height: 36px; padding: 6px 12px; font-size: 0.85rem; }
.ai-link {
    display: inline; padding: 4px 2px; margin: 0; border: 0; background: none; cursor: pointer;
    font: inherit; font-size: 0.9rem; font-weight: 700; color: var(--ai-primary);
    text-decoration: none; white-space: nowrap;
}
.ai-link:hover { color: var(--ai-primary-dark); text-decoration: underline; }
.ai-icon-btn {
    flex: none; width: 36px; height: 36px; padding: 0;
    display: inline-flex; align-items: center; justify-content: center;
    border: 0; border-radius: 50%; background: var(--ai-soft); color: var(--ai-muted);
    font-size: 0.95rem; cursor: pointer;
}
.ai-icon-btn:hover { background: var(--ai-line); color: var(--ai-text); }

/* ----- ① 店家搜尋 ----- */
.ai-search-row { display: flex; flex-wrap: wrap; gap: 8px; }
.ai-search-row > .ai-btn { flex: 1 0 auto; }
@media (min-width: 560px) {
    .ai-search-row { flex-wrap: nowrap; }
    .ai-search-row > .ai-btn { flex: 0 0 auto; }
}
.ai-results {
    margin-top: 8px; max-height: min(60vh, 460px); overflow-y: auto; overscroll-behavior: contain;
    background: var(--ai-surface); border: 1px solid var(--ai-line); border-radius: 12px;
    box-shadow: 0 8px 24px rgba(17, 24, 39, 0.06);
}
.ai-results-head {
    position: sticky; top: 0; z-index: 1;
    display: flex; align-items: center; justify-content: space-between; gap: 8px;
    padding: 6px 12px; font-size: 0.83rem; color: var(--ai-muted);
    background: var(--ai-soft); border-bottom: 1px solid var(--ai-line);
}
.ai-results-empty { padding: 12px; font-size: 0.9rem; color: var(--ai-muted); }
.ai-result {
    width: 100%; display: flex; align-items: center; gap: 10px;
    padding: 10px 12px; margin: 0; border: 0; border-bottom: 1px solid var(--ai-line);
    background: none; cursor: pointer; text-align: left; font: inherit; color: inherit;
}
.ai-result:last-child { border-bottom: 0; }
.ai-result:hover, .ai-result.is-active { background: var(--ai-soft); }
.ai-result-icon {
    flex: 0 0 38px; height: 38px; border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    background: var(--ai-soft); font-size: 1.15rem;
}
.ai-result-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.ai-result-name, .ai-result-meta { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ai-result-name { font-weight: 700; }
.ai-result-name mark { background: none; color: var(--ai-primary); }
.ai-result-meta { font-size: 0.8rem; color: var(--ai-muted); }
.ai-result-side { flex: none; display: flex; flex-direction: column; align-items: flex-end; gap: 1px; font-size: 0.76rem; color: var(--ai-muted); }
.ai-result-dist { font-weight: 800; color: var(--ai-text); font-size: 0.82rem; }
.ai-result-add { color: var(--ai-primary); font-weight: 800; min-height: 48px; }
.ai-result-add:hover { background: var(--ai-primary-soft); }

/* 選好的店家 */
.ai-shop-card { padding: 12px; background: var(--ai-soft); border: 1px solid var(--ai-line); border-radius: 14px; }
.ai-card-main { display: flex; align-items: flex-start; gap: 12px; }
.ai-card-icon {
    flex: 0 0 44px; height: 44px; border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    background: var(--ai-surface); border: 1px solid var(--ai-line); font-size: 1.35rem;
}
.ai-card-text { flex: 1; min-width: 0; }
.ai-card-name { display: block; font-size: 1.05rem; font-weight: 800; line-height: 1.35; overflow-wrap: anywhere; }
.ai-card-meta { display: block; font-size: 0.85rem; color: var(--ai-muted); overflow-wrap: anywhere; }
.ai-card-items { margin-top: 12px; padding-top: 12px; border-top: 1px dashed #d6d9de; }
.ai-card-sub { margin: 0 0 8px; font-size: 0.85rem; color: var(--ai-muted); }
.ai-card-sub:last-child { margin-bottom: 0; }
.ai-card-all { display: inline-block; margin-top: 8px; font-size: 0.85rem; }
.ai-item-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.ai-item-chip {
    display: inline-flex; align-items: center; gap: 6px; max-width: 100%; min-height: 38px;
    padding: 6px 12px; font-size: 0.88rem; color: var(--ai-text); text-decoration: none;
    background: var(--ai-surface); border: 1px solid var(--ai-line); border-radius: 999px;
    transition: border-color 0.15s, box-shadow 0.15s;
}
.ai-item-chip:hover { color: var(--ai-text); border-color: var(--ai-primary); box-shadow: 0 2px 8px rgba(17, 24, 39, 0.06); }
.ai-item-chip-name { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ai-item-chip-go { flex: none; color: var(--ai-primary); font-weight: 700; font-size: 0.82rem; }
.ai-star-badge { flex: none; color: #a86a00; font-weight: 800; font-size: 0.82rem; }
.ai-badge-soft { flex: none; font-size: 0.72rem; color: var(--ai-muted); background: var(--ai-soft); border-radius: 999px; padding: 1px 8px; }

/* 新店家 */
.ai-newshop { padding: 12px; background: var(--ai-soft); border: 1px dashed #cfd4dc; border-radius: 14px; }
.ai-newshop .ai-label:first-of-type { margin-top: 4px; }
.ai-newshop-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.ai-tag-new { font-size: 0.78rem; font-weight: 800; color: var(--ai-ok); background: #e3f4ea; padding: 3px 10px; border-radius: 999px; }
.ai-geo-row { display: flex; align-items: center; flex-wrap: wrap; gap: 6px 10px; margin: 8px 0 2px; }
.ai-geo-status { font-size: 0.83rem; color: var(--ai-ok); }
.ai-geo-status .ai-link { font-size: 0.83rem; }

/* ----- ② 菜名、重複提醒、分類 ----- */
.ai-dup { margin-top: 10px; padding: 12px; background: #f0f7ff; border: 1px solid #bcd7f5; border-radius: 12px; }
.ai-dup.is-exact { background: #fff7e6; border-color: #f0c36d; }
.ai-dup-title { font-weight: 800; font-size: 0.92rem; }
.ai-dup-text { margin: 2px 0 8px; font-size: 0.85rem; color: var(--ai-muted); }
.ai-dup-list { display: flex; flex-direction: column; gap: 6px; }
.ai-dup-item {
    display: flex; align-items: center; gap: 8px; padding: 9px 12px;
    background: var(--ai-surface); border: 1px solid var(--ai-line); border-radius: 10px;
    color: var(--ai-text); text-decoration: none; font-size: 0.9rem;
}
.ai-dup-item:hover { color: var(--ai-text); border-color: var(--ai-primary); }
.ai-dup-item-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 600; }
.ai-dup-item-name small { font-weight: 400; color: var(--ai-muted); }
.ai-dup-item-go { flex: none; color: var(--ai-primary); font-weight: 800; font-size: 0.85rem; }

.ai-cat { position: relative; margin-top: 14px; }
.ai-cat-row { display: flex; align-items: center; flex-wrap: wrap; gap: 6px 8px; }
.ai-cat-label { font-size: 0.85rem; font-weight: 700; color: var(--ai-muted); }
.ai-cat-chip {
    display: inline-flex; align-items: center; gap: 6px; max-width: 100%; min-width: 0;
    padding: 6px 14px; border-radius: 999px;
    background: var(--ai-primary-soft); border: 1.5px solid var(--ai-primary);
    font-weight: 800;
}
.ai-cat-icon { font-size: 1.1rem; line-height: 1; }
.ai-cat-name { white-space: nowrap; }
.ai-cat-parent { font-size: 0.84rem; font-weight: 500; color: var(--ai-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.ai-cat-note { margin: 6px 0 0; font-size: 0.8rem; color: var(--ai-muted); }
.ai-cat-empty { display: flex; align-items: center; flex-wrap: wrap; gap: 4px 8px; margin: 0; font-size: 0.9rem; color: var(--ai-muted); }
.ai-cat-ask { margin: 0 0 8px; font-weight: 800; }
.ai-cat-ask small { margin-left: 6px; font-weight: 400; font-size: 0.82rem; color: var(--ai-muted); }
.ai-cat-suggest { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; font-size: 0.85rem; color: var(--ai-muted); }
.ai-cat-search-link { margin-top: 8px; }
.ai-parent-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 6px; }
@media (min-width: 560px) { .ai-parent-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); } }
.ai-parent {
    min-height: 70px; padding: 8px 3px; margin: 0;
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
    font: inherit; color: inherit; text-align: center; cursor: pointer;
    background: var(--ai-surface); border: 1px solid var(--ai-line); border-radius: 12px;
    transition: border-color 0.15s, background 0.15s;
}
.ai-parent:hover { border-color: var(--ai-primary); background: var(--ai-primary-soft); }
.ai-parent-icon { font-size: 1.45rem; line-height: 1; }
.ai-parent-name { font-size: 0.76rem; font-weight: 600; line-height: 1.25; overflow-wrap: anywhere; }
.ai-refine { margin-top: 10px; }
.ai-refine-label { display: block; margin-bottom: 6px; font-size: 0.8rem; color: var(--ai-muted); }
.ai-chip-wrap { display: flex; flex-wrap: wrap; gap: 6px; }
.ai-chip {
    display: inline-flex; align-items: center; gap: 4px; min-height: 34px; max-width: 100%;
    padding: 5px 12px; margin: 0;
    font: inherit; font-size: 0.86rem; color: var(--ai-text); white-space: nowrap; cursor: pointer;
    background: var(--ai-surface); border: 1px solid var(--ai-line); border-radius: 999px;
    transition: border-color 0.15s, background 0.15s;
}
.ai-chip:hover { border-color: var(--ai-primary); }
.ai-chip.is-selected { background: var(--ai-primary); border-color: var(--ai-primary); color: #fff; }
.ai-chip-more { color: var(--ai-primary); font-weight: 700; }
.ai-chip-parent { font-weight: 700; background: var(--ai-soft); }

/* 分類挑選器：手機底部抽屜、桌機置中視窗；左邊大分類、右邊小分類列表 */
.ai-picker-backdrop { position: fixed; inset: 0; z-index: 1090; background: rgba(17, 24, 39, 0.45); }
.ai-picker {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 1100;
    display: flex; flex-direction: column; gap: 10px;
    height: 86vh; height: 86dvh;
    padding: 8px 12px calc(10px + env(safe-area-inset-bottom, 0px));
    background: var(--ai-surface); border-radius: 18px 18px 0 0;
    box-shadow: 0 -10px 30px rgba(17, 24, 39, 0.18);
    animation: ai-sheet-in 0.18s ease-out;
}
@keyframes ai-sheet-in { from { transform: translateY(24px); opacity: 0.4; } to { transform: none; opacity: 1; } }
.ai-picker-grab { width: 40px; height: 4px; margin: 2px auto 0; border-radius: 4px; background: #d1d5db; flex: none; }
.ai-picker-head { display: flex; align-items: center; justify-content: space-between; flex: none; }
.ai-picker > .ai-field-icon { flex: none; }
.ai-picker-head strong { font-size: 1.05rem; }
.ai-picker-results { flex: 1 1 auto; min-height: 0; overflow-y: auto; overscroll-behavior: contain; }
.ai-picker-results:not([hidden]) + .ai-picker-browse:not([hidden]) { flex: 1 1 auto; }
.ai-picker-empty { margin: 4px 0; font-size: 0.88rem; color: var(--ai-muted); }
.ai-picker-browse {
    flex: 1 1 auto; min-height: 0;
    display: grid; grid-template-columns: 92px minmax(0, 1fr); gap: 10px;
}
.ai-picker-browse[hidden] { display: none; }
.ai-pnav {
    min-height: 0; overflow-y: auto; overscroll-behavior: contain;
    padding: 4px; border-radius: 12px; background: var(--ai-soft);
    display: flex; flex-direction: column; gap: 2px;
}
.ai-ptab {
    display: flex; flex-direction: column; align-items: center; gap: 2px; width: 100%;
    padding: 8px 2px; margin: 0; border: 0; border-radius: 10px; background: none;
    font: inherit; color: var(--ai-text); text-align: center; cursor: pointer;
}
.ai-ptab:hover { background: rgba(255, 255, 255, 0.7); }
.ai-ptab.is-active { background: var(--ai-surface); color: var(--ai-primary); box-shadow: 0 1px 4px rgba(17, 24, 39, 0.1); }
.ai-ptab-icon { font-size: 1.25rem; line-height: 1; }
.ai-ptab-name { font-size: 0.74rem; font-weight: 700; line-height: 1.25; overflow-wrap: anywhere; }
.ai-ptab-sub { display: none; font-size: 0.7rem; color: var(--ai-muted); font-weight: 400; }
.ai-plist { min-height: 0; overflow-y: auto; overscroll-behavior: contain; display: flex; flex-direction: column; gap: 2px; }
.ai-plist-h { margin: 6px 4px 4px; font-size: 0.8rem; font-weight: 800; color: var(--ai-muted); }
.ai-plist-h small { margin-left: 6px; font-weight: 400; }
.ai-prow {
    display: flex; align-items: center; gap: 10px; width: 100%;
    padding: 9px 8px; margin: 0; border: 1px solid transparent; border-radius: 10px; background: none;
    font: inherit; color: inherit; text-align: left; cursor: pointer;
}
.ai-prow:hover { background: var(--ai-soft); }
.ai-prow.is-selected { background: var(--ai-primary-soft); border-color: var(--ai-primary); }
.ai-prow-icon { flex: 0 0 26px; text-align: center; font-size: 1.2rem; line-height: 1; }
.ai-prow-main { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 1px; }
.ai-prow-name { font-weight: 700; font-size: 0.93rem; overflow-wrap: anywhere; }
.ai-prow-name small { margin-left: 6px; font-weight: 400; font-size: 0.76rem; color: var(--ai-muted); }
.ai-prow-ex { font-size: 0.76rem; color: var(--ai-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ai-prow-n { flex: none; font-size: 0.72rem; color: var(--ai-muted); background: var(--ai-soft); border-radius: 999px; padding: 2px 8px; }
.ai-prow-other .ai-prow-name { font-weight: 600; color: var(--ai-muted); }
.ai-prow-parent { margin-top: 6px; border: 1px dashed var(--ai-line); }
.ai-prow-parent .ai-prow-name { font-size: 0.85rem; }
.ai-picker-foot { flex: none; margin: 0; font-size: 0.78rem; color: var(--ai-muted); text-align: center; }
.ai-picker-foot a { color: var(--ai-primary); font-weight: 700; }
.ai-cat-alts { margin: 8px 0 0; }
body.ai-lock { overflow: hidden; }
/* 桌機：置中視窗，左欄較寬（圖示 + 名稱橫排） */
@media (min-width: 768px) {
    .ai-picker {
        left: 50%; right: auto; bottom: auto; top: 50%; transform: translate(-50%, -50%);
        width: min(820px, calc(100vw - 48px)); height: min(640px, calc(100vh - 64px));
        padding: 16px 18px 14px; border-radius: 18px;
        box-shadow: 0 24px 60px rgba(17, 24, 39, 0.25);
        animation: none;
    }
    .ai-picker-grab { display: none; }
    .ai-picker-browse { grid-template-columns: 190px minmax(0, 1fr); gap: 14px; }
    .ai-ptab { flex-direction: row; justify-content: flex-start; gap: 8px; padding: 8px 10px; text-align: left; }
    .ai-ptab-name { font-size: 0.86rem; flex: 1; }
    .ai-ptab-sub { display: inline; }
    .ai-prow { padding: 10px 12px; }
}

/* ----- ③ 細節：照片 ----- */
.ai-file { position: absolute; width: 1px; height: 1px; opacity: 0; overflow: hidden; clip: rect(0 0 0 0); }
.ai-upload {
    display: flex; align-items: center; gap: 12px; padding: 14px; cursor: pointer;
    background: var(--ai-soft); border: 1.5px dashed #cfd4dc; border-radius: 12px;
    transition: border-color 0.15s;
}
.ai-upload:hover, .ai-file:focus-visible + .ai-upload { border-color: var(--ai-primary); }
.ai-file:focus-visible + .ai-upload { outline: 2px solid var(--ai-primary); outline-offset: 2px; }
.ai-upload-icon { flex: none; font-size: 1.6rem; }
.ai-upload-text { min-width: 0; }
.ai-upload-text strong { display: block; font-size: 0.95rem; }
.ai-upload-text small { display: block; font-size: 0.78rem; color: var(--ai-muted); }
.ai-media-item { display: flex; align-items: center; gap: 12px; padding: 8px; border: 1px solid var(--ai-line); border-radius: 12px; }
.ai-media-item img, .ai-media-item video { flex: none; width: 88px; height: 88px; object-fit: cover; border-radius: 10px; background: #111; }
.ai-media-info { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.ai-media-name { font-weight: 600; font-size: 0.9rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ai-media-info small { font-size: 0.78rem; color: var(--ai-muted); }

/* ----- ④ 評分 ----- */
.ai-rating { display: flex; align-items: center; flex-wrap: wrap; gap: 4px 10px; }
.ai-stars { display: inline-flex; gap: 2px; }
.ai-star {
    padding: 2px 3px; margin: 0; border: 0; background: none; cursor: pointer;
    font-size: 2rem; line-height: 1; color: #d9dde3;
    transition: color 0.1s, transform 0.1s;
}
.ai-star:hover { transform: scale(1.08); }
.ai-star.is-on { color: var(--ai-star); }
.ai-star-label { font-weight: 700; font-size: 0.95rem; }
.ai-tags-head { margin: 14px 0 8px; font-size: 0.9rem; font-weight: 700; }
.ai-tag-list { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.ai-tagchip {
    min-height: 34px; padding: 5px 12px; margin: 0;
    font: inherit; font-size: 0.85rem; color: var(--ai-text); cursor: pointer;
    background: var(--ai-surface); border: 1px solid var(--ai-line); border-radius: 999px;
}
.ai-tagchip:hover { border-color: #9aa1ab; }
.ai-tagchip.is-on.ai-tag-positive { background: #e3f4ea; border-color: #3aa76d; color: #17633d; }
.ai-tagchip.is-on.ai-tag-neutral { background: #eef1f5; border-color: #7b8794; color: #374151; }
.ai-tagchip.is-on.ai-tag-negative { background: #fdecea; border-color: #e07a6f; color: #9b2c22; }
.ai-tags-more { font-size: 0.85rem; }

/* ----- 送出列（黏在底部） ----- */
.ai-submitbar {
    position: sticky; bottom: 0; z-index: 20;
    display: flex; align-items: center; gap: 12px;
    margin: 4px -16px 0;
    padding: 10px 16px calc(10px + env(safe-area-inset-bottom, 0px));
    background: rgba(255, 255, 255, 0.95);
    -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
    border-top: 1px solid var(--ai-line);
}
.ai-summary { flex: 1; min-width: 0; font-size: 0.85rem; color: var(--ai-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ai-summary strong { color: var(--ai-text); }
.ai-summary-err { color: var(--ai-err); font-weight: 600; white-space: normal; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.ai-btn-submit { flex: 0 0 auto; min-width: 124px; min-height: 48px; padding: 12px 20px; font-size: 1rem; }

@media (min-width: 768px) {
    .ai-wrap { padding-top: 32px; }
    .ai-title { font-size: 1.75rem; }
    .ai-step { padding: 20px; }
    .ai-submitbar {
        bottom: 12px; margin: 8px 0 0; padding: 12px 12px 12px 18px;
        border: 1px solid var(--ai-line); border-radius: 16px;
        box-shadow: 0 8px 28px rgba(17, 24, 39, 0.08);
    }
}