/* ==========================================================================
   老照片修复 — 设计系统
   取色来自"档案纸/老相册"：暖纸底、墨色字、单一铁锈红强调色。
   ========================================================================== */

:root {
  --bg: #f5f6fa;
  --surface: #ffffff;
  --surface-2: #eef0f7;
  --ink: #272636;
  --muted: #666b7f;
  --line: #e5e7f0;
  --line-strong: #d3d7e4;
  --accent: #4262ff;
  --accent-2: #7a4ffa;
  --accent-ink: #ffffff;
  --accent-soft: #e9edff;
  --ok: #2f9e63;
  --danger: #e5484d;
  --shadow: 0 1px 2px rgba(39, 38, 54, 0.04), 0 10px 28px -14px rgba(38, 60, 180, 0.16);
  --shadow-lift: 0 2px 4px rgba(39, 38, 54, 0.05), 0 18px 40px -16px rgba(38, 60, 180, 0.28);
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 20px;
  /* 透明背景棋盘格（去背景预览用）：浅底两档 */
  --check-a: #ffffff;
  --check-b: #e2e6f2;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #101218;
    --surface: #181a22;
    --surface-2: #22242f;
    --ink: #eceef8;
    --muted: #9aa0b8;
    --line: #2a2d3a;
    --line-strong: #3a3e4e;
    --accent: #6d87ff;
    --accent-2: #9d80ff;
    --accent-ink: #ffffff;
    --accent-soft: #232739;
    --ok: #5ec48f;
    --danger: #f27a7e;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 10px 30px -14px rgba(0, 0, 0, 0.8);
    --shadow-lift: 0 2px 4px rgba(0, 0, 0, 0.5), 0 20px 44px -16px rgba(0, 0, 0, 0.9);
    --check-a: #191b23;
    --check-b: #272a35;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #101218;
  --surface: #181a22;
  --surface-2: #22242f;
  --ink: #eceef8;
  --muted: #9aa0b8;
  --line: #2a2d3a;
  --line-strong: #3a3e4e;
  --accent: #6d87ff;
  --accent-2: #9d80ff;
  --accent-ink: #ffffff;
  --accent-soft: #232739;
  --ok: #5ec48f;
  --danger: #f27a7e;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 10px 30px -14px rgba(0, 0, 0, 0.8);
  --shadow-lift: 0 2px 4px rgba(0, 0, 0, 0.5), 0 20px 44px -16px rgba(0, 0, 0, 0.9);
  --check-a: #191b23;
  --check-b: #272a35;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(20px, env(safe-area-inset-right, 0px));
}

.wrap { max-width: 1120px; margin: 0 auto; }
.narrow { max-width: 760px; margin: 0 auto; }

h1, h2, h3, h4 { margin: 0; line-height: 1.2; letter-spacing: -0.02em; font-weight: 700; text-wrap: balance; }
p { margin: 0; }
a { color: inherit; }
img { max-width: 100%; }

.eyebrow {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 14px;
}

/* ---------- 顶栏 ---------- */

.site-head {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  border-bottom: 1px solid var(--line);
}
.head-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-block: 14px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 16px;
  text-decoration: none;
  letter-spacing: -0.01em;
}
.brand-mark {
  width: 28px; height: 28px;
  border-radius: 9px;
  background: var(--accent);
  color: var(--accent-ink);
  display: grid;
  place-items: center;
  flex: none;
}
img.brand-mark { background: none; display: block; }
.head-nav { display: flex; gap: 22px; margin-left: auto; font-size: 14px; }
.head-nav a { color: var(--muted); text-decoration: none; }
.head-nav a:hover { color: var(--ink); }
.head-actions { display: flex; align-items: center; gap: 10px; }

.lang-btn {
  background: none;
  border: 1px solid var(--line-strong);
  color: var(--muted);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  font-family: inherit;
}
.lang-btn:hover { color: var(--ink); border-color: var(--muted); }

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--accent-ink);
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
  box-shadow: 0 8px 20px -8px rgba(66, 98, 255, 0.55);
  transition: transform 0.12s ease, box-shadow 0.16s ease, filter 0.12s ease;
  white-space: nowrap;
}
.btn:hover { filter: brightness(1.05); box-shadow: 0 10px 24px -8px rgba(66, 98, 255, 0.65); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn.sm { padding: 7px 16px; font-size: 13.5px; }
.btn.ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn.ghost:hover { background: var(--surface-2); }
.btn:focus-visible, .lang-btn:focus-visible, .cmp-range:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ---------- 首屏 ---------- */

.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
  padding-block: 72px 80px;
}
.hero h1 {
  font-size: clamp(34px, 5.2vw, 54px);
  letter-spacing: -0.035em;
  margin-bottom: 20px;
}
.hero h1 em {
  font-style: normal;
  color: var(--accent);
  position: relative;
  white-space: nowrap;
}
.lede {
  font-size: 17px;
  color: var(--muted);
  max-width: 44ch;
  margin-bottom: 26px;
}
.trust {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  list-style: none;
  padding: 0;
  margin: 0;
}
.trust li {
  font-size: 12.5px;
  color: var(--muted);
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 999px;
  padding: 4px 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.trust li::before {
  content: "";
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--ok);
  flex: none;
}

/* ---------- 上传卡片 ---------- */

.uploader {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 22px;
  box-shadow: var(--shadow);
  position: relative;
}
.uploader-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.uploader-title { font-size: 15px; font-weight: 700; }
.uploader-hint { font-size: 12.5px; color: var(--muted); }

.drop {
  border: 1.5px dashed var(--line-strong);
  border-radius: var(--r-md);
  background: var(--surface-2);
  padding: 34px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.drop:hover, .drop.over { border-color: var(--accent); background: var(--accent-soft); }
.drop-icon {
  width: 40px; height: 40px;
  margin: 0 auto 12px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  color: var(--accent);
}
.drop-main { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.drop-sub { font-size: 12.5px; color: var(--muted); }

.opts { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.turnstile { margin-top: 14px; display: flex; justify-content: center; }
.turnstile[hidden] { display: none; }
.opt {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 13px;
  cursor: pointer;
  user-select: none;
  background: var(--surface);
  transition: border-color 0.12s, background 0.12s;
}
.opt:hover { border-color: var(--line-strong); }
.opt input { accent-color: var(--accent); margin: 0; width: 14px; height: 14px; }
.opt:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); }
.beta {
  font-size: 10.5px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: var(--surface-2);
  border-radius: 4px;
  padding: 1px 5px;
  color: var(--muted);
}

/* ---------- 进度 ---------- */

.steps { display: grid; gap: 10px; margin: 4px 0 16px; }
.step-row {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--muted);
}
.step-dot {
  width: 22px; height: 22px;
  border-radius: 50%;
  border: 1.5px solid var(--line-strong);
  display: grid;
  place-items: center;
  font-size: 11px;
  font-weight: 700;
  flex: none;
  color: var(--muted);
}
.step-row.active { color: var(--ink); font-weight: 600; }
.step-row.active .step-dot { border-color: var(--accent); color: var(--accent); }
.step-row.done .step-dot { background: var(--ok); border-color: var(--ok); color: #fff; }
.step-row.done { color: var(--muted); }
.step-row .eta { margin-left: auto; font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; }

.bar {
  height: 6px;
  background: var(--surface-2);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 14px;
}
.bar-fill {
  height: 100%;
  width: 0;
  background: var(--accent);
  border-radius: 999px;
  transition: width 0.5s ease;
}
.progress-note { font-size: 12.5px; color: var(--muted); }
.progress-note b { color: var(--ink); font-variant-numeric: tabular-nums; }

/* ---------- 对比滑块 ---------- */

.cmp {
  position: relative;
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--surface-2);
  touch-action: pan-y;
  user-select: none;
}
.cmp img { display: block; width: 100%; height: auto; pointer-events: none; }
.cmp-before { position: absolute; inset: 0; clip-path: inset(0 50% 0 0); }
.cmp-tag {
  position: absolute;
  top: 10px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #fff;
  background: rgba(20, 14, 8, 0.55);
  backdrop-filter: blur(4px);
  padding: 3px 9px;
  border-radius: 999px;
  pointer-events: none;
}
.cmp-tag.left { left: 10px; }
.cmp-tag.right { right: 10px; background: color-mix(in srgb, var(--accent) 88%, #000); }
.cmp-line {
  position: absolute;
  top: 0; bottom: 0;
  left: 50%;
  width: 2px;
  margin-left: -1px;
  background: #fff;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.15);
  pointer-events: none;
}
.cmp-handle {
  position: absolute;
  top: 50%; left: 50%;
  width: 34px; height: 34px;
  transform: translate(-50%, -50%);
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  display: grid;
  place-items: center;
  color: #1e1a15;
  font-size: 12px;
  letter-spacing: -2px;
}
.cmp-range {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: ew-resize;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
}
.cmp-range::-webkit-slider-thumb { -webkit-appearance: none; width: 40px; height: 100%; }
.cmp-range::-moz-range-thumb { width: 40px; height: 100%; border: none; background: transparent; }

/* ---------- 结果 ---------- */

.result-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.result-meta { font-size: 12.5px; color: var(--muted); margin-top: 12px; }
.share-row {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  align-items: center;
}
.share-input {
  flex: 1;
  min-width: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  color: var(--muted);
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 8px 10px;
}

.err {
  color: var(--danger);
  font-size: 13.5px;
  background: color-mix(in srgb, var(--danger) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--danger) 30%, transparent);
  border-radius: var(--r-sm);
  padding: 9px 12px;
  margin-top: 12px;
  white-space: pre-wrap;
}

/* ---------- 结果页 ---------- */

.result-page {
  grid-template-columns: 1fr;
  max-width: 820px;
  margin: 0 auto;
  padding-block: 56px 40px;
}
.result-page h1 { font-size: clamp(28px, 4.4vw, 42px); margin-bottom: 24px; }
.result-page .uploader { box-shadow: none; }

/* ---------- 买断成功页 ---------- */

section.buy-page { display: grid; gap: 18px; justify-items: start; padding-block: 64px 80px; border-top: 0; }
.buy-page h1 { font-size: clamp(28px, 4.4vw, 40px); }
.buy-page .lede { max-width: 56ch; }
.license-box {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 14px 16px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--r-md);
  background: var(--surface);
}
.license-box code {
  flex: 1;
  min-width: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 19px;
  letter-spacing: 0.06em;
  color: var(--accent);
  word-break: break-all;
}

/* ---------- 通用区块 ---------- */

section.block { padding-block: 76px; border-top: 1px solid var(--line); }
.section-head { margin-bottom: 32px; }
.section-head h2 { font-size: clamp(24px, 3.4vw, 32px); margin-bottom: 10px; }
.section-head p { color: var(--muted); max-width: 56ch; font-size: 15.5px; }

.samples { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
/* 只有一张样张时别占半屏空着右半边 */
.samples.single { grid-template-columns: minmax(0, 560px); justify-content: center; }
.sample { margin: 0; }
.sample figcaption {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-top: 10px;
  font-size: 13px;
  color: var(--muted);
}
.sample figcaption b { color: var(--ink); font-size: 13.5px; }
.badge {
  font-size: 11px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: 999px;
  padding: 2px 8px;
  border: 1px solid var(--line-strong);
  color: var(--muted);
  white-space: nowrap;
}
.badge.hot { border-color: var(--accent); color: var(--accent); }

.how { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.how-item .n {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 10px;
}
.how-item h3 { font-size: 17px; margin-bottom: 8px; }
.how-item p { font-size: 14.5px; color: var(--muted); }

.price-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: start; }
.plan {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 28px;
  box-shadow: var(--shadow);
}
.plan.pro { border-color: var(--accent); }
.plan-name { font-size: 13px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin-bottom: 12px; }
.plan.pro .plan-name { color: var(--accent); }
.plan-price { font-size: 40px; font-weight: 700; letter-spacing: -0.04em; line-height: 1; margin-bottom: 6px; }
.plan-price small { font-size: 15px; font-weight: 500; color: var(--muted); letter-spacing: 0; margin-left: 4px; }
.plan-note { font-size: 13.5px; color: var(--muted); margin-bottom: 20px; }
.plan ul { list-style: none; padding: 0; margin: 0 0 22px; display: grid; gap: 9px; font-size: 14px; }
.plan li { display: flex; gap: 9px; align-items: flex-start; }
.plan li::before { content: "✓"; color: var(--ok); font-weight: 700; flex: none; }
.plan li.off { color: var(--muted); }
.plan li.off::before { content: "—"; color: var(--line-strong); }

.faq { display: grid; gap: 2px; }
.faq details {
  border-bottom: 1px solid var(--line);
  padding: 16px 2px;
}
.faq summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--muted); font-weight: 400; font-size: 18px; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { color: var(--muted); font-size: 14.5px; margin-top: 10px; max-width: 68ch; }

.site-foot {
  border-top: 1px solid var(--line);
  padding-block: 28px 40px;
  color: var(--muted);
  font-size: 13px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  align-items: baseline;
}

.hidden, [hidden] { display: none !important; }

/* ---------- 工具聚合首页 ---------- */

.hero.hero-hub { grid-template-columns: 1.04fr 0.96fr; gap: 48px; padding-block: 64px 48px; }
.hero-hub .hero-copy { max-width: 40em; }

/* 首页首屏大样张：修复前/后硬边对切（与工具卡同一语言，尺寸放大） */
.hero-show { position: relative; }
.hero-show .frame {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-lift);
  background: var(--surface-2);
}
.hero-show .frame img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-show .frame img + img { clip-path: inset(0 0 0 50%); box-shadow: -2px 0 0 rgba(255, 255, 255, 0.9); }
.hero-show .chip {
  position: absolute;
  bottom: 14px;
  font-size: 12.5px;
  font-weight: 700;
  color: #fff;
  padding: 5px 14px;
  border-radius: 999px;
  background: rgba(20, 20, 30, 0.62);
  backdrop-filter: blur(6px);
}
.hero-show .chip-l { left: 14px; }
.hero-show .chip-r { left: 50%; transform: translateX(14px); background: linear-gradient(135deg, var(--accent), var(--accent-2)); }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }

.group-title {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 34px 0 14px;
  padding: 6px 16px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.group-title::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  flex: none;
}
.group-title:first-of-type { margin-top: 10px; }
.tools { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.tool-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px 14px 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow);
  color: inherit;
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
a.tool-card:hover {
  transform: translateY(-5px);
  border-color: color-mix(in srgb, var(--accent) 36%, var(--line));
  box-shadow: var(--shadow-lift);
}
a.tool-card:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.tool-card h3 { font-size: 18px; margin: 4px 0 0; }
.tool-card p { font-size: 13.5px; line-height: 1.6; color: var(--muted); margin: 0; flex: 1; }
.tool-go { font-size: 13.5px; font-weight: 700; color: var(--accent); margin-top: 2px; }
a.tool-card:hover .tool-go { text-decoration: underline; text-underline-offset: 3px; }

/* 工具卡徽标：图左上角的“免费/新”小签 */
.tool-badge {
  position: absolute;
  top: 10px; left: 10px;
  z-index: 2;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #fff;
  padding: 3px 10px;
  border-radius: 999px;
  background: linear-gradient(135deg, #fb923c, #ec4899);
  box-shadow: 0 4px 10px -3px rgba(39, 38, 54, 0.4);
}
.tool-badge.free { background: linear-gradient(135deg, #34c98e, #0ea5e9); }

.tool-thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--surface-2);
}
.tool-thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.28s ease;
}
a.tool-card:hover .tool-thumb img { transform: scale(1.045); }
/* 两图叠放：左原图、右效果，中间一条硬边——和页面里的对比滑块同一套语言 */
.tool-thumb img + img { clip-path: inset(0 0 0 50%); box-shadow: -1px 0 0 rgba(255, 255, 255, 0.85); }

/* 透明背景棋盘格。放 .tool-thumb 之后，才能盖掉它的纯色底 */
.checker,
.cmp.on-checker {
  background-color: var(--check-a);
  background-image:
    linear-gradient(45deg, var(--check-b) 25%, transparent 25%, transparent 75%, var(--check-b) 75%),
    linear-gradient(45deg, var(--check-b) 25%, transparent 25%, transparent 75%, var(--check-b) 75%);
  background-size: 18px 18px;
  background-position: 0 0, 9px 9px;
}

.tool-card.soon { border-style: dashed; box-shadow: none; opacity: 0.62; }
.tool-card.soon:hover { transform: none; }
.soon-thumb { display: grid; place-items: center; }
.soon-thumb span {
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- 去背景 ---------- */

.opt-note { font-size: 12.5px; color: var(--muted); margin-top: 14px; }

/* ---------- 输出方式 + 能力参数（caps.js 渲染） ---------- */

.out-mode {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}
.cap-label { font-size: 12.5px; color: var(--muted); letter-spacing: 0.04em; }
.cap-seg {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  overflow: hidden;
  background: var(--surface);
}
.cap-seg-btn {
  appearance: none;
  border: 0;
  border-right: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 13px;
  padding: 7px 13px;
  cursor: pointer;
  line-height: 1.2;
}
.cap-seg-btn:last-child { border-right: 0; }
.cap-seg-btn:hover { background: var(--surface-2); }
.cap-seg-btn.on { background: var(--accent); color: var(--accent-ink); }
.cap-seg-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }

.cap-params {
  margin-top: 14px;
  display: grid;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--surface-2);
}
.cap-params[hidden] { display: none; }
.cap-field { display: grid; gap: 6px; }
.cap-head { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; }
.cap-num { font-size: 12.5px; color: var(--ink); font-variant-numeric: tabular-nums; }
.cap-field input[type="range"] { width: 100%; accent-color: var(--accent); }
.cap-field input[type="number"] {
  width: 100%;
  padding: 7px 10px;
  font: inherit;
  font-size: 13px;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
}
.cap-field input[type="color"] {
  width: 44px;
  height: 30px;
  padding: 2px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-sm);
  background: var(--surface);
  justify-self: start;
}
.cap-switch { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; cursor: pointer; }

.bg-picker {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}
.bg-label { font-size: 12.5px; color: var(--muted); letter-spacing: 0.04em; }
.swatch {
  width: 32px;
  height: 32px;
  padding: 0;
  flex: none;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: var(--sw, transparent);
  cursor: pointer;
  position: relative;
  /* 白底那格在白卡片上几乎看不见，靠内阴影勾出边界 */
  box-shadow: inset 0 0 0 1px rgba(30, 26, 21, 0.08);
}
.swatch:hover { border-color: var(--line-strong); }
/* 固定底色用属性选择器上色：CSP 禁内联 style，HTML 里不能写 style="--sw:…" */
.swatch[data-bg="#ffffff"] { background: #ffffff; }
.swatch[data-bg="#000000"] { background: #000000; }
.swatch[data-bg="#f3efe7"] { background: #f3efe7; }
.swatch.active { outline: 2px solid var(--accent); outline-offset: 2px; }
.swatch:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
/* "透明"这一格自己也得是棋盘格，否则用户看不出点的是透明 */
.swatch.transparent {
  background-color: var(--check-a);
  background-image:
    linear-gradient(45deg, var(--check-b) 25%, transparent 25%, transparent 75%, var(--check-b) 75%),
    linear-gradient(45deg, var(--check-b) 25%, transparent 25%, transparent 75%, var(--check-b) 75%);
  background-size: 10px 10px;
  background-position: 0 0, 5px 5px;
}
.swatch.custom {
  display: grid;
  place-items: center;
  overflow: hidden;
  background: conic-gradient(from 0.25turn, #e4664d, #e8b84b, #5aa35c, #4d9cc4, #6a5ac4, #c4559c, #e4664d);
}
.swatch.custom input[type="color"] {
  width: 100%;
  height: 100%;
  padding: 0;
  border: 0;
  opacity: 0;
  cursor: pointer;
  background: transparent;
}

/* ---------- 掩码编辑器（修复页） ---------- */
/* 工具栏按钮靠 aria-pressed 表状态，样式用属性选择器（CSP 不允许内联 style 之外的捷径） */
.pte { margin-top: 10px; }
.ed-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  padding: 8px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--r-sm) var(--r-sm) 0 0;
}
.ed-group { display: flex; gap: 6px; align-items: center; }
.ed-group.ed-grow { flex: 1 1 130px; }
.ed-btn {
  font: inherit;
  font-size: 13px;
  line-height: 1.4;
  padding: 5px 10px;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--ink);
  border-radius: 8px;
  cursor: pointer;
}
.ed-btn:hover { border-color: var(--accent); }
.ed-btn[aria-pressed="true"] {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}
.ed-btn:disabled { opacity: 0.55; cursor: wait; }
.ed-size { width: 100%; accent-color: var(--accent); }
.ed-stage {
  position: relative;
  height: min(52vh, 440px);
  background: #141210;
  border: 1px solid var(--line);
  border-top: 0;
  border-radius: 0 0 var(--r-sm) var(--r-sm);
  overflow: hidden;
  touch-action: none; /* 双指缩放/平移自己接管，别让页面跟着滚 */
}
.ed-view { position: absolute; inset: 0; width: 100%; height: 100%; cursor: crosshair; }
.ed-tip { font-size: 13.5px; color: var(--muted); margin: 8px 2px 10px; }
.ed-actions { display: flex; gap: 10px; justify-content: flex-end; flex-wrap: wrap; margin-top: 14px; }

/* ---------- 模式 tabs（扩边页）与浏览器补边 ---------- */
.mode-tabs { display: flex; gap: 8px; margin-bottom: 14px; }
.mode-tab {
  flex: 1;
  font: inherit;
  font-size: 14px;
  padding: 9px 10px;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--ink);
  border-radius: 10px;
  cursor: pointer;
}
.mode-tab.active {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
  font-weight: 600;
}
.ratio-row { align-items: center; gap: 6px; }
.ratio-label { font-size: 13.5px; color: var(--muted); margin-right: 2px; }
.swatch-opt { cursor: pointer; padding: 6px 13px; }
.swatch-opt.active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}
#pad-range { accent-color: var(--accent); margin-left: 10px; }
.pad-preview { margin-top: 14px; }
.pad-preview img {
  display: block;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
}

/* ---------- 文字保真校验横幅（放大/白底结果页） ---------- */
.tc-banner {
  margin-top: 14px;
  padding: 10px 14px;
  border-radius: var(--r-sm);
  font-size: 13.5px;
  line-height: 1.55;
  border: 1px solid var(--line);
}
.tc-banner details {
  margin-top: 6px;
}
.tc-banner summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 12.5px;
}
.tc-banner ul {
  margin: 6px 0 0;
  padding-left: 18px;
  color: var(--muted);
  font-size: 12.5px;
  word-break: break-all;
}
.tc-banner li {
  margin: 2px 0;
}
.tc-ok {
  background: color-mix(in srgb, var(--ok) 10%, var(--surface));
  border-color: color-mix(in srgb, var(--ok) 35%, var(--line));
  color: var(--ok);
}
.tc-warn {
  background: var(--accent-soft);
  border-color: color-mix(in srgb, var(--accent) 30%, var(--line));
  color: var(--accent);
}

/* ---------- 敏感字检测报告 ---------- */
.scan-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 12px 14px;
  border-radius: var(--r-sm);
  border: 1px solid var(--line);
  margin-bottom: 4px;
  font-size: 15px;
}
.scan-head span {
  color: var(--muted);
  font-size: 13px;
}
.scan-hit {
  background: color-mix(in srgb, var(--danger) 10%, var(--surface));
  border-color: color-mix(in srgb, var(--danger) 35%, var(--line));
}
.scan-hit b {
  color: var(--danger);
}
.scan-clean {
  background: color-mix(in srgb, var(--ok) 10%, var(--surface));
  border-color: color-mix(in srgb, var(--ok) 35%, var(--line));
}
.scan-clean b {
  color: var(--ok);
}
.scan-list {
  margin: 10px 0 14px;
  display: grid;
  gap: 6px;
}
.scan-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  font-size: 13.5px;
}
.scan-idx {
  flex: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--danger);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.scan-cat {
  flex: none;
  padding: 1px 8px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 11.5px;
  font-weight: 600;
}
.scan-ctx {
  color: var(--muted);
  word-break: break-all;
  min-width: 0;
}

/* ---------- 平台规则结论（合规引擎） ---------- */
.cmp-report {
  margin: 10px 0 14px;
  display: grid;
  gap: 8px;
}
.cmp-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm) var(--r-sm) 0 0;
  background: var(--surface);
  font-size: 14px;
}
.cmp-pass { border-color: color-mix(in srgb, var(--ok) 35%, var(--line)); }
.cmp-pass b { color: var(--ok); }
.cmp-review { border-color: color-mix(in srgb, var(--accent) 35%, var(--line)); }
.cmp-review b { color: var(--accent); }
.cmp-block { border-color: color-mix(in srgb, var(--danger) 40%, var(--line)); }
.cmp-block b { color: var(--danger); }
.cmp-badge {
  padding: 1px 8px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 600;
  background: var(--accent-soft);
  color: var(--accent);
}
.cmp-pass .cmp-badge { background: color-mix(in srgb, var(--ok) 16%, var(--surface)); color: var(--ok); }
.cmp-block .cmp-badge { background: color-mix(in srgb, var(--danger) 14%, var(--surface)); color: var(--danger); }
.cmp-ver {
  margin-left: auto;
  font-size: 11.5px;
  color: var(--muted);
}
.cmp-list {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-top: 0;
  border-radius: 0 0 var(--r-sm) var(--r-sm);
  overflow: hidden;
}
.cmp-row {
  display: flex;
  gap: 8px;
  padding: 8px 12px;
  background: var(--surface);
  font-size: 13px;
}
.cmp-id {
  flex: none;
  color: var(--muted);
  font-family: var(--mono, ui-monospace, monospace);
  font-size: 11.5px;
  padding-top: 1px;
}
.cmp-msg { min-width: 0; word-break: break-word; }
.cmp-row-block .cmp-msg { color: var(--danger); }
.cmp-row-review .cmp-msg { color: var(--muted); }
.cmp-empty {
  margin: 0;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-top: 0;
  border-radius: 0 0 var(--r-sm) var(--r-sm);
  color: var(--muted);
  font-size: 13px;
}
.cmp-note {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}

/* ---------- 响应式 ---------- */

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 32px; padding-block: 44px 56px; }
  .head-nav { display: none; }
  .samples { grid-template-columns: 1fr; }
  .tools { grid-template-columns: 1fr; }
  .how { grid-template-columns: 1fr; gap: 22px; }
  .price-grid { grid-template-columns: 1fr; }
  section.block { padding-block: 52px; }
}
@media (max-width: 520px) {
  body { font-size: 15.5px; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
  .head-inner { gap: 12px; }
  .head-actions { margin-left: auto; }
  .brand { font-size: 15px; }
  .uploader { padding: 16px; }
  .drop { padding: 26px 14px; }
  .result-actions .btn { flex: 1; }
  .ed-actions .btn { flex: 1; }
  .ed-stage { height: min(46vh, 360px); }
  .ed-bar { gap: 6px; padding: 6px; }
  .ed-btn { padding: 5px 8px; font-size: 12.5px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition-duration: 0.01ms !important; }
}

/* ---------- koukoutu 式应用壳：左侧工具导航 + 主区 ---------- */
.shell { display: flex; min-height: calc(100vh - 64px); }
.side {
  width: 200px; flex: none;
  background: var(--surface);
  border-right: 1px solid var(--line);
  padding: 16px 10px;
}
.side-sticky { position: sticky; top: 76px; display: flex; flex-direction: column; gap: 2px; }
.side-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: 10px;
  font-size: 14px; color: var(--muted); text-decoration: none;
  transition: background 0.12s, color 0.12s;
}
.side-item:hover { color: var(--ink); background: var(--surface-2); }
.side-item.active { color: var(--accent); background: var(--accent-soft); font-weight: 600; }
.side-ico { width: 18px; text-align: center; flex: none; font-size: 15px; }
.side-label { font-size: 11px; color: var(--muted); letter-spacing: 0.08em; padding: 14px 12px 4px; }

.main { flex: 1; min-width: 0; padding: 20px clamp(16px, 3vw, 28px) 60px; }

/* 主区顶部：工具搜索框 */
.tool-search { position: relative; max-width: 420px; margin-bottom: 8px; }
.tool-search input {
  width: 100%; padding: 9px 14px 9px 36px;
  border: 1px solid var(--line-strong); border-radius: 10px;
  background: var(--surface); color: var(--ink);
  font-size: 14px; font-family: inherit; outline: none;
}
.tool-search input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.tool-search::before { content: "🔍"; position: absolute; left: 12px; top: 50%; transform: translateY(-50%); font-size: 13px; opacity: 0.55; }

/* Hero 双卡排（渐变浅底大卡 + 右侧产品图） */
.hero-duo { display: flex; flex-direction: column; gap: 18px; padding-block: 14px 6px; }
@media (min-width: 900px) { .hero-duo { flex-direction: row; } }
.hero-panel {
  flex: 1 1 0; min-width: 0;
  display: flex; align-items: center; gap: 8px;
  border-radius: 16px; padding: 22px;
  text-decoration: none; color: inherit;
  background: linear-gradient(160deg, #e8edff 0%, #f3f0ff 100%);
  border: 1px solid color-mix(in srgb, var(--accent) 14%, transparent);
  transition: transform 0.16s ease, box-shadow 0.16s ease;
}
.hero-panel:hover { transform: translateY(-3px); box-shadow: var(--shadow-lift); }
.hero-panel.alt { background: linear-gradient(160deg, #ffece4 0%, #fff3e9 100%); border-color: #f3cdb8; flex: 0.85; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .hero-panel { background: linear-gradient(160deg, #232a45 0%, #2a2545 100%); }
  :root:not([data-theme="light"]) .hero-panel.alt { background: linear-gradient(160deg, #3a2a22 0%, #352920 100%); }
}
:root[data-theme="dark"] .hero-panel { background: linear-gradient(160deg, #232a45 0%, #2a2545 100%); }
:root[data-theme="dark"] .hero-panel.alt { background: linear-gradient(160deg, #3a2a22 0%, #352920 100%); }
.hero-copy2 { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 10px; }
.hero-copy2 h1, .hero-copy2 h2 { font-size: clamp(18px, 2.2vw, 24px); }
.hero-copy2 p { font-size: 13.5px; color: var(--muted); line-height: 1.6; }
.hero-pic { width: min(240px, 34%); flex: none; border-radius: 12px; overflow: hidden; }
.hero-pic img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease; }
.hero-panel:hover .hero-pic img { transform: scale(1.06); }
.gradientbg {
  align-self: flex-start;
  display: inline-flex; align-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; border: none; border-radius: 999px;
  padding: 8px 22px; font-size: 14px; font-weight: 600;
  text-decoration: none; cursor: pointer; font-family: inherit;
  box-shadow: 0 6px 16px -6px rgba(66, 98, 255, 0.5);
}

/* ✨ NEW 横滑卡带 */
.cat-head { display: flex; align-items: center; gap: 10px; font-size: 19px; font-weight: 700; margin: 30px 0 14px; }
.cat-head .n { color: var(--muted); font-weight: 500; font-size: 14px; }
.tag-new {
  font-size: 11px; font-weight: 700; color: #fff;
  background: linear-gradient(135deg, #fb923c, #ec4899);
  padding: 2px 9px; border-radius: 999px; letter-spacing: 0.04em;
}
.rail {
  display: flex; gap: 14px;
  overflow-x: auto; padding-bottom: 8px;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
}
.rail-card {
  position: relative; flex: none; width: 200px;
  display: flex; flex-direction: column; gap: 8px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 12px; padding: 10px;
  text-decoration: none; color: inherit;
  scroll-snap-align: start;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.rail-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lift); }
.rail-card .badge {
  position: absolute; top: 16px; left: 16px; z-index: 2;
  font-size: 11px; font-weight: 700; color: #fff;
  background: linear-gradient(135deg, #fb923c, #ec4899);
  padding: 2px 9px; border-radius: 999px;
}
.rail-card .badge.free { background: linear-gradient(135deg, #34c98e, #0ea5e9); }
.rail-thumb {
  height: 118px; border-radius: 8px; overflow: hidden;
  background: var(--surface-2); position: relative;
}
.rail-thumb img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.rail-thumb img + img { clip-path: inset(0 0 0 50%); }
.rail-card b { font-size: 13.5px; font-weight: 600; line-height: 1.4; }
@media (max-width: 900px) {
  .side { display: none; }
  .hero-pic { width: 32%; }
}

/* ---------- 满幅开阔版式（对齐 koukoutu：贴边、大留白） ---------- */
.shell { margin-inline: -20px; }                 /* 抵消 body 侧边距：侧栏贴到屏幕边 */
body[data-i18n-title="title.home"] .head-inner { max-width: none; padding-inline: 20px; }
.main { padding: 24px clamp(20px, 3vw, 40px) 72px; }
.hero-duo { padding-block: 18px 8px; gap: 20px; }
.hero-panel { padding: 26px 28px; }
.hero-pic { width: min(300px, 36%); }
.cat-head { margin: 40px 0 16px; font-size: 21px; }
.tools { gap: 24px; }
.rail { gap: 16px; }
/* 满幅之后防傻宽：文本类区块限宽 */
.price-grid, .faq { max-width: 900px; }
.section-head p { max-width: 62ch; }

/* ---------- 文生图页 ---------- */
.gen-box { padding: 24px; }
.gen-area { width: 100%; border: 1px solid var(--line-strong); border-radius: 10px; padding: 12px; font: inherit; background: var(--surface); color: var(--ink); resize: vertical; }
.gen-area:focus { border-color: var(--accent); outline: none; box-shadow: 0 0 0 3px var(--accent-soft); }
.gen-num { width: 110px; border: 1px solid var(--line-strong); border-radius: 8px; padding: 6px 10px; font: inherit; background: var(--surface); color: var(--ink); }
.gen-err { color: var(--danger); font-size: 13px; }

/* ---------- 版式修正（2026-11-10）：移动端断点 + 工具网格 ---------- */
/* 定价/FAQ 从 .tools 网格里出来了，恢复成整幅区块 */
.soon-note { margin-top: 14px; color: var(--muted); font-size: 13px; }

/* 侧栏只在桌面参与布局：负边距抵消 body 内边距也只在桌面成立 */
@media (max-width: 900px) {
  .shell { margin-inline: 0; }
  /* 侧栏没了，内边距交给 body 统一给，别叠成 36px */
  .main { padding-inline: 0; }
  .tools { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero-duo { gap: 14px; }
}
@media (max-width: 620px) {
  .tools { grid-template-columns: 1fr; gap: 16px; }
  /* 双卡 hero：字在上、图在下，别再挤成 108px 的小方块 */
  .hero-panel { flex-direction: column; align-items: stretch; padding: 18px; gap: 14px; }
  .hero-pic { width: 100%; aspect-ratio: 16 / 9; }
  .hero-copy2 h1, .hero-copy2 h2 { font-size: 20px; }
  .hero-copy2 p { font-size: 13px; }
  .hero-duo { padding-block: 6px 0; }
  .rail-card { width: 44vw; max-width: 210px; }
  .rail-thumb { height: 104px; }
  .price-grid { gap: 14px; }
  .plan { padding: 20px; }
  .cat-head { margin: 28px 0 12px; font-size: 18px; }
  .tool-card { padding: 12px 12px 16px; }
  .tool-card h3 { font-size: 17px; }
  section.block { padding-block: 44px; }
  .section-head { margin-bottom: 22px; }
}