/* 出图助手 · 深色科技风（参照小台界面风格优化）
   配色：深藏青底 + 青绿强调色 + 低对比边框
   手机优先，电脑自适应 */

:root {
  --bg-base: #0a0f16;
  --bg-card: #121b24;
  --bg-card2: #0f161e;
  --bg-input: #0d141b;
  --primary: #1ba8a2;
  --primary-dark: #13857f;
  --primary-light: #21c4bd;
  --text-main: #f8fafc;
  --text-sec: #94a3b8;
  --text-muted: #475569;
  --border: #1e293b;
  --border-soft: #18232d;
  --err: #f87171;
  --ok: #34d399;
  --warn: #fbbf24;
  --r-lg: 16px;
  --r-md: 10px;
  --r-sm: 8px;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-base);
  color: var(--text-main);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
}

/* 顶部光晕 */
.glow {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 420px;
  pointer-events: none;
  background: radial-gradient(circle at 50% 0%, rgba(27,168,162,.10) 0%, transparent 60%);
  z-index: 0;
}

/* ---------- 头部 ---------- */
.hero {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 40px 20px 26px;
  max-width: 760px;
  margin: 0 auto;
}
.h1 {
  font-size: 27px;
  font-weight: 700;
  margin: 0 0 10px;
  letter-spacing: -.3px;
}
.h1 .dim { color: var(--text-main); }
.h1 { color: var(--primary); }
.sub {
  font-size: 13.5px;
  color: var(--text-sec);
  margin: 0 0 18px;
  line-height: 1.6;
}
.badge {
  display: inline-block;
  background: rgba(27,168,162,.10);
  border: 1px solid rgba(27,168,162,.28);
  color: var(--text-sec);
  font-size: 12.5px;
  padding: 5px 14px;
  border-radius: 999px;
}
.badge b { color: var(--primary-light); font-size: 14px; }
.badge.exhausted {
  background: rgba(248,113,113,.10);
  border-color: rgba(248,113,113,.35);
  color: #fca5a5;
}
.badge.exhausted b { color: var(--err); }

/* ---------- 主容器 ---------- */
main {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 16px 40px;
}

/* ---------- 上传区（横排紧凑） ---------- */
.drop {
  border: 1.5px dashed #3b4c60;
  border-radius: 14px;
  background: rgba(27,168,162,.035);
  padding: 16px 18px;
  cursor: pointer;
  transition: border-color .2s, background .2s;
  margin-bottom: 14px;
}
.drop:active { background: rgba(27,168,162,.08); }
.drop.is-over {
  border-color: var(--primary);
  border-style: solid;
  background: rgba(27,168,162,.12);
}
.drop-inner {
  display: flex;
  align-items: center;
  gap: 14px;
}
.drop-icon {
  color: var(--primary);
  flex: 0 0 auto;
  display: flex;
  opacity: .85;
  transition: transform .2s, opacity .2s;
}
.drop.is-over .drop-icon { transform: translateY(-2px); opacity: 1; }
.drop-text { flex: 1 1 auto; min-width: 0; text-align: left; }
.drop-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 3px;
}
.drop.is-over .drop-title { color: var(--primary-light); }
.drop-sub {
  font-size: 11.5px;
  color: var(--text-muted);
  line-height: 1.5;
}
.drop-btns {
  display: flex;
  gap: 8px;
  flex: 0 0 auto;
}
.mini {
  min-width: 76px;
  min-height: 40px;
  padding: 9px 16px;
  background: rgba(27,168,162,.14);
  border: 1px solid var(--primary);
  color: var(--primary-light);
  border-radius: 9px;
  font-size: 13.5px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: .18s;
}
.mini:hover, .mini:active {
  background: var(--primary);
  color: #04211f;
}

/* ---------- 已载入预览 ---------- */
.loaded {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 14px 16px 16px;
  margin-bottom: 14px;
}
.loaded-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.loaded-title { font-size: 13px; color: var(--text-sec); }
.loaded-title b { color: var(--primary-light); font-size: 15px; margin: 0 2px; }
.linkbtn {
  background: transparent;
  border: 0;
  color: var(--text-muted);
  font-size: 12px;
  cursor: pointer;
  font-family: inherit;
  padding: 6px 10px;
  border-radius: 6px;
  min-height: 32px;
}
.linkbtn:hover { color: var(--err); background: rgba(248,113,113,.10); }

.loaded-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(88px, 1fr));
  gap: 9px;
}
.litem {
  position: relative;
  background: var(--bg-card2);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-sm);
  overflow: hidden;
}
.litem .lthumb {
  width: 100%;
  aspect-ratio: 1;
  background: repeating-conic-gradient(#151c25 0 25%, #111820 0 50%) 50%/12px 12px;
  display: grid;
  place-items: center;
  overflow: hidden;
}
.litem .lthumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.litem .lmeta {
  padding: 5px 7px 6px;
  font-size: 10px;
  color: var(--text-muted);
  line-height: 1.35;
}
.litem .lname {
  color: var(--text-sec);
  font-size: 10.5px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 1px;
}
.litem .ldel {
  position: absolute;
  top: 4px; right: 4px;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: rgba(0,0,0,.72);
  border: 1px solid rgba(255,255,255,.16);
  color: #fff;
  font-size: 13px;
  line-height: 1;
  cursor: pointer;
  display: grid;
  place-items: center;
  font-family: inherit;
  padding: 0;
  opacity: 1;
}
.litem .ldel:hover, .litem .ldel:active {
  background: var(--err);
  border-color: var(--err);
}
.litem.loading .lthumb::after {
  content: "";
  width: 16px; height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- 进度条 ---------- */
.progress {
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  margin-bottom: 14px;
}
.pbar {
  height: 5px;
  background: #0a0f16;
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 8px;
}
.pfill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary-dark), var(--primary-light));
  border-radius: 3px;
  transition: width .18s ease;
}
.ptext { font-size: 12px; color: var(--text-sec); }

/* ---------- 主卡片 ---------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 20px;
  box-shadow: 0 10px 40px -14px rgba(0,0,0,.7);
  margin-bottom: 16px;
}

/* 标签页 */
.tabs {
  display: flex;
  gap: 6px;
  background: #0a0f16;
  padding: 4px;
  border-radius: var(--r-md);
  margin-bottom: 18px;
}
.tab {
  flex: 1;
  min-height: 40px;
  padding: 8px 4px;
  background: transparent;
  border: 0;
  color: var(--text-sec);
  font-size: 13.5px;
  font-family: inherit;
  border-radius: var(--r-sm);
  cursor: pointer;
  transition: .18s;
  white-space: nowrap;
}
.tab.active {
  background: var(--bg-card);
  color: var(--primary-light);
  font-weight: 500;
  box-shadow: 0 1px 6px rgba(0,0,0,.35);
}

/* 面板 */
.pane { display: none; }
.pane.active { display: block; }

.field { margin-bottom: 16px; }
.field:last-child { margin-bottom: 0; }
.field > label {
  display: block;
  font-size: 12.5px;
  color: var(--text-sec);
  margin-bottom: 7px;
}
.field.row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.field.row .col { min-width: 0; }
.col > label {
  display: block;
  font-size: 12.5px;
  color: var(--text-sec);
  margin-bottom: 7px;
}
.col-color { grid-column: span 1; }
.col-color input[type="color"] { width: 100%; }

/* 输入控件（16px 防 iOS 自动放大） */
input[type="number"],
input[type="text"],
select {
  width: 100%;
  min-height: 44px;
  padding: 10px 13px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  color: var(--text-main);
  font-size: 16px;
  font-family: inherit;
  outline: none;
  transition: border-color .18s, box-shadow .18s;
  appearance: none;
  -webkit-appearance: none;
}
input[type="number"]:focus,
input[type="text"]:focus,
select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(27,168,162,.13);
}
select {
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%2394a3b8' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 13px center;
  padding-right: 36px;
}
input[type="color"] {
  width: 56px;
  height: 44px;
  padding: 3px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  cursor: pointer;
}

/* 滑块 */
input[type="range"] {
  width: 100%;
  height: 32px;
  background: transparent;
  appearance: none;
  -webkit-appearance: none;
  margin: 0;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  background: #0a0f16;
  border-radius: 2px;
}
input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  -webkit-appearance: none;
  width: 20px; height: 20px;
  margin-top: -8px;
  border-radius: 50%;
  background: var(--primary);
  border: 2px solid #0a0f16;
  cursor: pointer;
}
input[type="range"]::-moz-range-track {
  height: 4px;
  background: #0a0f16;
  border-radius: 2px;
}
input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--primary);
  border: 2px solid #0a0f16;
  cursor: pointer;
}

.hint {
  font-size: 11.5px;
  color: var(--text-muted);
  margin-top: 6px;
  line-height: 1.5;
}

/* 平台预设 —— 强调可点（老板 10/26 要求显眼） */
.presets {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.preset {
  padding: 9px 15px;
  min-height: 38px;
  background: #1b2733;
  border: 1px solid #3d5064;
  border-radius: 999px;
  color: #cbd5e1;
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
  transition: .16s;
  white-space: nowrap;
}
.preset:hover {
  border-color: var(--primary);
  color: var(--primary-light);
  background: #223241;
}
.preset:active { transform: scale(.97); }
.preset.active {
  background: var(--primary);
  border-color: var(--primary-light);
  color: #04211f;
  font-weight: 700;
  box-shadow: 0 0 0 3px rgba(27,168,162,.22);
}

.lblhint {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 400;
  margin-left: 6px;
}

/* ---------- 按钮 ---------- */
.primary {
  width: 100%;
  min-height: 48px;
  margin-top: 20px;
  padding: 13px 24px;
  background: linear-gradient(90deg, var(--primary-dark), var(--primary));
  border: 0;
  border-radius: var(--r-md);
  color: #fff;
  font-size: 15.5px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: filter .18s, transform .1s;
}
.primary:hover:not(:disabled) { filter: brightness(1.12); }
.primary:active:not(:disabled) { transform: scale(.985); }
.primary:disabled {
  background: #16202b;
  color: #3f4d5e;
  cursor: not-allowed;
}

.ghost {
  width: 100%;
  min-height: 44px;
  margin-top: 10px;
  padding: 11px 24px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  color: var(--text-sec);
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
  transition: .18s;
}
.ghost:hover:not(:disabled) {
  border-color: var(--primary);
  color: var(--primary-light);
  background: rgba(27,168,162,.07);
}
.ghost:disabled { opacity: .4; cursor: not-allowed; }

.status {
  margin-top: 14px;
  font-size: 12.5px;
  color: var(--text-sec);
  line-height: 1.6;
  min-height: 20px;
  word-break: break-all;
}
.status.ok { color: var(--ok); }
.status.err { color: var(--err); }

/* ---------- 底部特性卡 ---------- */
.features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-top: 24px;
}
.fcard {
  background: var(--bg-card2);
  border: 1px solid var(--border-soft);
  border-radius: 12px;
  padding: 14px 15px;
}
.ftitle {
  color: var(--primary);
  font-size: 13.5px;
  font-weight: 500;
  margin-bottom: 5px;
}
.fdesc {
  color: var(--text-muted);
  font-size: 11.5px;
  line-height: 1.5;
}

/* ---------- 页脚 ---------- */
footer {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 8px 20px 34px;
  max-width: 760px;
  margin: 0 auto;
}
footer p {
  margin: 0 0 6px;
  font-size: 11.5px;
  color: var(--text-muted);
  line-height: 1.6;
}
footer .tiny { font-size: 11px; color: #334155; }

.results:empty { display: none; }

/* ---------- 桌面端 ---------- */
@media (min-width: 700px) {
  .hero { padding: 54px 20px 28px; }
  .h1 { font-size: 32px; }
  .sub { font-size: 14px; }
  .card { padding: 26px 28px; }
  .drop { padding: 20px 24px; }
  .drop-btns { display: none; }
  .field.row { grid-template-columns: 1fr 1fr 1.2fr auto; }
  .col-color { grid-column: auto; }
  .col-color input[type="color"] { width: 62px; }
  .features { grid-template-columns: repeat(4, 1fr); gap: 14px; }
  .loaded-grid { grid-template-columns: repeat(auto-fill, minmax(104px, 1fr)); }
  .primary { margin-top: 22px; }
}

/* 手机窄屏：上传区竖排、按钮均分 */
@media (max-width: 560px) {
  .drop-inner { flex-wrap: wrap; }
  .drop-text { flex: 1 1 calc(100% - 44px); }
  .drop-btns {
    display: flex;
    width: 100%;
    margin-top: 4px;
  }
  .mini { flex: 1; min-width: 0; }
}

/* ---------- 小屏细化 ---------- */
@media (max-width: 380px) {
  .h1 { font-size: 24px; }
  .loaded-grid { grid-template-columns: repeat(auto-fill, minmax(76px, 1fr)); }
  .tab { font-size: 12.5px; }
  .mini { min-width: 0; flex: 1; }
}

/* 安全区（iPhone 刘海屏） */
@supports (padding: max(0px)) {
  body {
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }
}