* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --bg: #f5f7fa;
    --bg2: #ffffff;
    --card: #ffffff;
    --card2: #eef2f7;
    --text: #1e293b;
    --text2: #64748b;
    --border: #e2e8f0;
    --accent: #10b981;
    --accent2: #059669;
    --accent-dark: #064e3b;
    --danger: #ef4444;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
input, select { font-family: inherit; }

/* ---------- 顶栏 ---------- */
.top {
    background: var(--bg2);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
}
.top-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 14px 24px;
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
}
.top h1 { font-size: 20px; font-weight: 700; margin-right: auto; }
.tabs { display: flex; gap: 8px; }
.tab {
    padding: 8px 18px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--card);
    color: var(--text2);
    font-size: 14px;
    font-weight: 600;
    transition: all .2s;
}
.tab:hover { color: var(--text); border-color: var(--accent); }
.tab.active { background: rgba(16,185,129,.15); color: var(--accent2); border-color: var(--accent); }

main { max-width: 1200px; margin: 0 auto; padding: 28px 24px 60px; flex: 1; width: 100%; }
.hidden { display: none !important; }

/* ---------- 上传区 ---------- */
.upload-zone {
    border: 2px dashed var(--border);
    border-radius: 18px;
    padding: 46px 24px;
    text-align: center;
    background: var(--card);
    transition: border-color .2s, background .2s;
}
.upload-zone.dragover { border-color: var(--accent); background: rgba(16,185,129,.06); }
.upload-icon { font-size: 42px; margin-bottom: 10px; }
.upload-title { font-size: 17px; font-weight: 600; margin-bottom: 6px; }
.hint { font-size: 12px; color: var(--text2); margin-top: 6px; line-height: 1.6; }
.upload-actions { margin-top: 18px; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.privacy { margin-top: 18px; font-size: 12px; color: var(--accent2); }

/* ---------- 按钮 ---------- */
.btn {
    padding: 9px 16px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--card2);
    color: var(--text);
    font-size: 13px;
    font-weight: 600;
    transition: all .2s;
}
.btn:hover { border-color: var(--accent); color: var(--accent2); }
.btn.primary { background: #059669; border-color: #059669; color: #fff; }
.btn.primary:hover { background: var(--accent); color: #fff; }
.btn.ghost { background: transparent; }
.btn.block { width: 100%; margin-top: 10px; }
.btn:disabled { opacity: .45; cursor: not-allowed; }

/* ---------- 编辑器 ---------- */
.editor {
    margin-top: 22px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 350px;
    gap: 20px;
    align-items: start;
}
.preview-wrap {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 16px;
    position: relative;
}
#preview {
    display: block;
    width: 100%;
    height: auto;
    background: #e2e8f0;
    border-radius: 12px;
    touch-action: none;
    cursor: grab;
}
#preview:active { cursor: grabbing; }
#preview.brush { cursor: crosshair; }
.preview-badges {
    position: absolute;
    top: 26px;
    left: 26px;
    display: flex;
    gap: 8px;
}
.badge {
    font-size: 11px;
    background: rgba(255,255,255,.88);
    border: 1px solid var(--border);
    color: #475569;
    padding: 4px 10px;
    border-radius: 20px;
    max-width: 260px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.preview-hint {
    text-align: center;
    font-size: 11px;
    color: var(--text2);
    margin-top: 10px;
}

/* ---------- 批量栏 ---------- */
.batch-bar {
    margin-top: 16px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 14px;
}
.batch-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.batch-title { font-size: 13px; font-weight: 700; }
.batch-tip { font-size: 11px; color: var(--text2); }
.batch-thumbs { display: flex; gap: 10px; flex-wrap: wrap; }
.thumb {
    position: relative;
    width: 58px;
    height: 58px;
    border-radius: 10px;
    overflow: hidden;
    border: 2px solid var(--border);
    background: var(--bg);
    padding: 0;
    flex-shrink: 0;
    cursor: pointer;
}
.thumb img, .thumb canvas { width: 100%; height: 100%; object-fit: cover; display: block; }
.thumb.active { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(16,185,129,.25); }
.thumb .del {
    position: absolute;
    top: 2px;
    right: 2px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: none;
    background: rgba(255,255,255,.92);
    color: var(--danger);
    font-size: 12px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}
.thumb .del:hover { background: var(--danger); color: #fff; }
.thumb .index {
    position: absolute;
    left: 4px;
    bottom: 3px;
    font-size: 10px;
    color: #334155;
    background: rgba(255,255,255,.88);
    padding: 1px 5px;
    border-radius: 8px;
}

/* ---------- 参数面板 ---------- */
.panel { display: flex; flex-direction: column; gap: 14px; }
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 16px 18px;
}
.card h3 { font-size: 14px; font-weight: 700; margin-bottom: 12px; color: var(--accent2); }
.card label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    font-size: 13px;
    color: var(--text2);
    margin: 10px 0;
}
.card label.inline-label { display: inline-flex; flex: 1; justify-content: flex-end; }
.card input[type="range"] {
    flex: 1;
    accent-color: var(--accent);
    min-width: 80px;
}
.card input[type="number"], .card select {
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 8px;
    padding: 8px 10px;
    font-size: 13px;
    width: 100%;
}
.card select { cursor: pointer; }
.card .row { display: flex; gap: 10px; margin: 8px 0; }
.card .row .btn { flex: 1; }
.custom-spec .row { margin-top: 10px; }
.custom-spec label { justify-content: flex-start; flex: 1; }
.custom-spec input[type="number"] { width: 70px; flex: 0; }

/* 色板 */
.swatches { display: flex; align-items: center; gap: 12px; margin: 4px 0 6px; }
.swatch {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 2px solid var(--border);
    transition: all .2s;
}
.swatch:hover { transform: scale(1.08); }
.swatch.active { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(16,185,129,.25); }
.bg-source { display: flex; align-items: center; gap: 8px; margin: 10px 0; }
.bg-source-label { font-size: 12px; color: var(--text2); }
.swatch-mini { width: 22px; height: 22px; border-radius: 6px; border: 1px solid var(--border); background: #eee; display: inline-block; }
.btn.small { padding: 6px 10px; font-size: 12px; }
.btn.pick-active { border-color: var(--accent); color: var(--accent2); }
.custom-color {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text2);
    cursor: pointer;
}
.custom-color input[type="color"] {
    width: 30px;
    height: 30px;
    border: none;
    padding: 0;
    background: transparent;
    cursor: pointer;
}

/* ---------- 压缩模式 ---------- */
.compress-layout {
    margin-top: 22px;
    display: grid;
    grid-template-columns: 320px minmax(0, 1fr);
    gap: 20px;
    align-items: start;
}
.compress-list { display: flex; flex-direction: column; gap: 12px; }
.compress-item {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 12px 14px;
}
.compress-item img {
    width: 64px;
    height: 64px;
    border-radius: 10px;
    object-fit: cover;
    background: var(--bg);
}
.compress-item .info { flex: 1; min-width: 0; }
.compress-item .name {
    font-size: 13px;
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.compress-item .sizes { font-size: 12px; color: var(--text2); margin-top: 4px; }
.compress-item .saved { color: var(--accent2); font-weight: 600; }
.compress-item .actions { display: flex; gap: 8px; flex-shrink: 0; }
.compress-empty { color: var(--text2); font-size: 13px; padding: 30px; text-align: center; }

/* ---------- 摄像头弹窗 ---------- */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(2,6,23,.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
}
.modal-box {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 18px;
    width: min(560px, 92vw);
}
.modal-box video {
    width: 100%;
    border-radius: 12px;
    background: #000;
    max-height: 56vh;
    object-fit: cover;
}
.modal-actions { display: flex; gap: 12px; margin-top: 14px; }
.modal-actions .btn { flex: 1; }

/* ---------- Toast ---------- */
.toast {
    position: fixed;
    left: 50%;
    bottom: 32px;
    transform: translateX(-50%) translateY(20px);
    background: var(--card2);
    border: 1px solid var(--border);
    color: var(--text);
    font-size: 13px;
    padding: 12px 22px;
    border-radius: 12px;
    opacity: 0;
    pointer-events: none;
    transition: all .25s;
    z-index: 200;
    max-width: 80vw;
    text-align: center;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

.site-footer {
    position: relative;
    text-align: center;
    padding: 34px 20px 28px;
    color: #475569;
    font-size: 12px;
    border-top: 1px solid var(--border);
}
.site-footer a { color: #64748b; }
.site-footer a:hover { color: var(--accent2); }
.back-home-btn {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--card);
    border: 1px solid var(--border);
    color: var(--text2);
    font-size: 13px;
    font-weight: 600;
    padding: 8px 24px;
    border-radius: 999px;
    z-index: 1;
    white-space: nowrap;
    transition: all .2s;
}
.back-home-btn:hover { color: var(--accent2); border-color: var(--accent); }

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
    .editor { grid-template-columns: 1fr; }
    .compress-layout { grid-template-columns: 1fr; }
    .top-inner { gap: 10px; }
    .top h1 { font-size: 17px; }
}