/* 证件照生成器 —— 苹果风浅色主题 */
:root {
  --bg: #FAFAFA;
  --card: #FFFFFF;
  --ink: #1D1D1F;
  --ink-2: #86868B;
  --accent: #0071E3;
  --line: #E5E5E7;
  --ok: #34C759;
  --warn: #FF9500;
  --err: #FF3B30;
  --r-lg: 18px;
  --r-md: 12px;
  --r-sm: 8px;
  --shadow: 0 1px 2px rgba(0, 0, 0, .04), 0 6px 20px rgba(0, 0, 0, .05);
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.55;
  -webkit-text-size-adjust: 100%;
}

button, input, select { font-family: inherit; font-size: inherit; color: inherit; }

/* ---------- 阶段提示 ---------- */
.stage {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 10px 16px;
  background: rgba(0, 0, 0, .82);
  color: #fff;
  font-size: 14px;
  backdrop-filter: blur(8px);
}
.spinner {
  width: 14px; height: 14px;
  border: 2px solid rgba(255, 255, 255, .35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- 头部 ---------- */
.hero { max-width: 1180px; margin: 0 auto; padding: 56px 24px 18px; text-align: center; }
.hero h1 { margin: 0; font-size: 36px; font-weight: 600; letter-spacing: -.02em; }
.hero-sub { margin: 10px 0 0; color: var(--ink-2); font-size: 16px; }
.hero-tip { margin: 14px 0 0; font-size: 14px; color: var(--ink-2); }
.hero-privacy {
  display: inline-flex; align-items: center; gap: 6px;
  margin: 8px 0 0; font-size: 13px; color: var(--ink-2);
}

/* ---------- 布局 ---------- */
.page { max-width: 1180px; margin: 0 auto; padding: 12px 24px 40px; }
.workspace { display: grid; grid-template-columns: minmax(0, 1fr) 420px; gap: 20px; align-items: start; }
.col { display: flex; flex-direction: column; gap: 20px; min-width: 0; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 20px;
  box-shadow: var(--shadow);
}
.card-title { margin: 0 0 14px; font-size: 15px; font-weight: 600; }
.card-upload { max-width: 720px; margin: 8px auto 0; }

/* ---------- 上传 ---------- */
.drop {
  border: 2px dashed var(--line);
  border-radius: var(--r-md);
  padding: 40px 20px;
  text-align: center;
  color: var(--ink-2);
  transition: border-color .18s ease, background .18s ease;
  cursor: pointer;
}
.drop:hover, .drop.is-over { border-color: var(--accent); background: rgba(0, 113, 227, .04); }
.drop-icon { color: var(--ink-2); }
.drop-title { margin: 12px 0 4px; color: var(--ink); font-size: 16px; font-weight: 500; }
.drop-sub { margin: 0 0 18px; font-size: 13px; }
.drop-actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

/* ---------- 按钮 ---------- */
.btn {
  min-height: 44px;
  padding: 0 20px;
  border-radius: 980px;
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  font-size: 15px;
  transition: transform .12s ease, background .16s ease, border-color .16s ease, opacity .16s ease;
  -webkit-tap-highlight-color: transparent;
}
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #0077ED; }
.btn-ghost { border-color: var(--line); background: #fff; color: var(--ink); }
.btn-ghost:hover { border-color: #c9c9ce; }
.btn-lg { width: 100%; min-height: 52px; font-size: 17px; font-weight: 500; }
.btn-sm { min-height: 36px; padding: 0 14px; font-size: 14px; }
.btn-icon { min-height: 40px; width: 56px; padding: 0; }
.btn[disabled] { opacity: .38; cursor: not-allowed; }
.btn[disabled]:active { transform: none; }

/* ---------- 对比 ---------- */
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.shot { margin: 0; }
.shot-box {
  display: flex; align-items: center; justify-content: center;
  background: #F5F5F7;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 12px;
  min-height: 160px;
}
.shot-box canvas { display: block; max-width: 100%; max-height: 420px; width: auto; height: auto; border-radius: 4px; }
.shot figcaption { margin-top: 8px; text-align: center; font-size: 13px; color: var(--ink-2); }
.compare-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 14px; flex-wrap: wrap; }
.meta { font-size: 13px; color: var(--ink-2); }

/* ---------- 合规 ---------- */
.checks { list-style: none; margin: 0 0 4px; padding: 0; }
.checks li {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}
.checks li:last-child { border-bottom: 0; }
.ck-icon { flex: 0 0 auto; width: 20px; height: 20px; margin-top: 1px; }
.ck-body { min-width: 0; }
.ck-name { font-weight: 500; font-size: 14px; }
.ck-text { font-size: 13px; color: var(--ink-2); }
.lv-pass .ck-name { color: var(--ok); }
.lv-warn .ck-name { color: var(--warn); }
.lv-fail .ck-name { color: var(--err); }

.actions { display: flex; flex-direction: column; gap: 10px; margin-top: 16px; }

/* ---------- 提示 ---------- */
.notice {
  margin: 12px 0 0;
  padding: 10px 12px;
  border-radius: var(--r-sm);
  font-size: 13px;
  background: rgba(0, 113, 227, .07);
  color: #0058B0;
}
.notice.is-warn { background: rgba(255, 149, 0, .1); color: #9A5B00; }
.notice.is-err  { background: rgba(255, 59, 48, .09); color: #B32017; }
.notice.is-ok   { background: rgba(52, 199, 89, .1); color: #1D7A38; }
.hint { margin: 10px 0 0; font-size: 12.5px; color: var(--ink-2); }

/* ---------- 规格 ---------- */
.tabs { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 10px; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
.tabs::-webkit-scrollbar { display: none; }
.tab {
  flex: 0 0 auto;
  min-height: 34px; padding: 0 14px;
  border-radius: 980px; border: 1px solid var(--line);
  background: #fff; color: var(--ink-2); cursor: pointer; font-size: 13.5px;
  transition: all .16s ease;
}
.tab.is-on { background: var(--ink); border-color: var(--ink); color: #fff; }

.spec-row { display: flex; gap: 10px; overflow-x: auto; padding: 4px 0 8px; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
.spec-row::-webkit-scrollbar { display: none; }
.spec {
  flex: 0 0 auto; width: 132px; text-align: left;
  padding: 12px; border-radius: var(--r-md);
  border: 1px solid var(--line); background: #fff; cursor: pointer;
  transition: transform .16s ease, border-color .16s ease, box-shadow .16s ease;
}
.spec:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.spec.is-on { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }
.spec-name { font-size: 14px; font-weight: 500; }
.spec-size { font-size: 12px; color: var(--ink-2); margin-top: 2px; }
.spec-note { font-size: 11.5px; color: var(--ink-2); margin-top: 6px; min-height: 16px; }

.custom-spec { margin-top: 12px; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 980px; overflow: hidden; }
.seg-btn { min-height: 32px; padding: 0 16px; border: 0; background: #fff; color: var(--ink-2); cursor: pointer; font-size: 13.5px; }
.seg-btn.is-on { background: var(--accent); color: #fff; }
.custom-fields { display: flex; gap: 10px; align-items: flex-end; margin-top: 12px; flex-wrap: wrap; }
.custom-fields label { display: flex; flex-direction: column; gap: 4px; font-size: 12.5px; color: var(--ink-2); }
.custom-fields input {
  width: 88px; min-height: 40px; padding: 0 10px;
  border: 1px solid var(--line); border-radius: var(--r-sm); background: #fff;
}

/* ---------- 背景色 ---------- */
.swatches { display: flex; gap: 12px; flex-wrap: wrap; }
.sw {
  width: 56px; border: 0; background: transparent; padding: 0; cursor: pointer;
  display: flex; flex-direction: column; align-items: center; gap: 6px;
}
.sw-chip {
  width: 40px; height: 40px; border-radius: 50%;
  border: 2px solid var(--line);
  transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
}
.sw:hover .sw-chip { transform: scale(1.06); }
.sw.is-on .sw-chip { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0, 113, 227, .18); }
.sw-name { font-size: 11.5px; color: var(--ink-2); }
.inline-field { display: flex; align-items: center; gap: 10px; margin-top: 16px; font-size: 13px; color: var(--ink-2); }
.inline-field input[type=color] { width: 48px; height: 34px; padding: 2px; border: 1px solid var(--line); border-radius: var(--r-sm); background: #fff; }

/* ---------- 滑块 ---------- */
.slider-row { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.slider-row label { flex: 0 0 88px; font-size: 13.5px; color: var(--ink-2); }
.slider-row output { flex: 0 0 52px; text-align: right; font-size: 13.5px; font-variant-numeric: tabular-nums; }
input[type=range] {
  flex: 1 1 auto; min-width: 0; -webkit-appearance: none; appearance: none;
  height: 28px; background: transparent; cursor: pointer;
}
input[type=range]::-webkit-slider-runnable-track { height: 4px; border-radius: 2px; background: var(--line); }
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 22px; height: 22px; margin-top: -9px;
  border-radius: 50%; background: #fff; border: 1px solid rgba(0, 0, 0, .08);
  box-shadow: 0 1px 3px rgba(0, 0, 0, .18);
}
input[type=range]::-moz-range-track { height: 4px; border-radius: 2px; background: var(--line); }
input[type=range]::-moz-range-thumb { width: 20px; height: 20px; border-radius: 50%; background: #fff; border: 1px solid rgba(0, 0, 0, .08); }

.nudge { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 6px; }
.nudge-label { font-size: 13.5px; color: var(--ink-2); flex: 0 0 88px; }
.nudge-grid { display: grid; grid-template-columns: repeat(3, 56px); grid-template-rows: repeat(2, 40px); gap: 6px; }
.nudge-grid [data-nudge="0,-0.01"] { grid-column: 2; grid-row: 1; }
.nudge-grid [data-nudge="-0.01,0"] { grid-column: 1; grid-row: 2; }
.nudge-grid [data-nudge="0.01,0"]  { grid-column: 2; grid-row: 2; }
.nudge-grid [data-nudge="0,0.01"]  { grid-column: 3; grid-row: 2; }

/* ---------- 文件大小 ---------- */
.chips { display: flex; gap: 10px; flex-wrap: wrap; }
.chip {
  min-height: 40px; padding: 0 16px;
  border-radius: var(--r-sm); border: 1px solid var(--line); background: #fff;
  color: var(--ink); cursor: pointer; font-size: 13.5px;
  transition: border-color .16s ease, background .16s ease;
}
.chip:hover { border-color: #c9c9ce; }
.chip.is-on { border-color: var(--accent); background: rgba(0, 113, 227, .06); color: #0058B0; }

/* ---------- 页脚 ---------- */
.foot { max-width: 1180px; margin: 0 auto; padding: 0 24px 56px; text-align: center; }
.foot p { margin: 0; font-size: 12.5px; color: var(--ink-2); }

/* ---------- 响应式 ---------- */
@media (max-width: 1023px) {
  .workspace { grid-template-columns: 1fr; }
}
@media (max-width: 767px) {
  .hero { padding: 32px 16px 12px; }
  .hero h1 { font-size: 26px; }
  .hero-sub { font-size: 14px; }
  .page { padding: 10px 16px 32px; }
  .card { padding: 16px; border-radius: 14px; }
  .compare { grid-template-columns: 1fr; }
  .shot-box { min-height: 120px; }
  .shot-box canvas { max-height: 320px; }
  .drop { padding: 28px 16px; }
  .drop-actions { flex-direction: column; }
  .drop-actions .btn { width: 100%; }
  .slider-row label, .nudge-label { flex-basis: 76px; font-size: 13px; }
  .spec { width: 118px; }

  /* 触控目标一律 ≥44px */
  .btn-sm, .btn-icon, .tab, .chip, .seg-btn { min-height: 44px; }
  .btn-icon { width: 60px; }
  .sw { width: 64px; }
  .sw-chip { width: 46px; height: 46px; }
  .custom-fields input, .inline-field input[type=color] { min-height: 44px; }
}