:root {
  --field-bg: #f3f6fb;
  --stage-bg: #eef2f8;
}

:root[data-theme="dark"] {
  --field-bg: #131a24;
  --stage-bg: #101720;
}

/* 图片处理模块：沿用站点的颜色变量，只在局部补充自己的排版 */

.tool-wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 16px 64px;
}

.tool-head h1 {
  margin: 26px 0 8px;
  font-size: clamp(24px, 4.6vw, 34px);
  letter-spacing: -0.01em;
}

.tool-head p {
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

/* ------------------------------- 拖拽区 -------------------------------- */

.drop {
  border: 1.5px dashed var(--line-strong, #cdd8e6);
  border-radius: 20px;
  background: var(--card);
  transition: border-color .18s, background .18s, box-shadow .18s;
}

.drop.is-over {
  border-color: var(--primary);
  background: var(--primary-soft, #eef3ff);
  box-shadow: var(--shadow);
}

.drop-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 46px 22px;
  text-align: center;
  cursor: pointer;
}

.drop-inner b {
  font-size: 16px;
}

.drop-inner em {
  font-style: normal;
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.6;
}

.drop-loaded {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px;
  flex-wrap: wrap;
}

.drop-loaded img {
  width: 96px;
  height: 96px;
  object-fit: contain;
  border-radius: 12px;
  background: var(--stage-bg);
}

.src-meta {
  flex: 1;
  min-width: 180px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  word-break: break-all;
}

.src-meta b {
  color: var(--text);
  font-size: 14px;
}

/* -------------------------------- 控制台 -------------------------------- */

.panel {
  margin-top: 18px;
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

@media (min-width: 900px) {
  .panel {
    grid-template-columns: minmax(0, 1fr) 360px;
    align-items: start;
  }
  .panel .side {
    position: sticky;
    top: 16px;
  }
}

.box {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--card);
  padding: 16px;
}

.box h2 {
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: .02em;
}

.row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.row + .row {
  margin-top: 10px;
}

label.fld {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 12.5px;
  color: var(--muted);
  flex: 1;
  min-width: 110px;
}

input[type="number"],
input[type="text"],
select {
  width: 100%;
  height: 42px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--field-bg);
  color: var(--text);
  font: inherit;
  font-size: 14px;
}

input[type="number"]:focus,
select:focus {
  outline: 2px solid var(--primary-soft, #dbe6ff);
  border-color: var(--primary);
}

input[type="range"] {
  width: 100%;
  accent-color: var(--primary);
}

.seg {
  display: inline-flex;
  padding: 3px;
  gap: 2px;
  border-radius: 12px;
  background: var(--field-bg);
  border: 1px solid var(--line);
}

.seg button {
  border: 0;
  background: none;
  font: inherit;
  font-size: 13px;
  color: var(--muted);
  padding: 7px 12px;
  border-radius: 9px;
  cursor: pointer;
}

.seg button[aria-pressed="true"] {
  background: var(--card);
  color: var(--text);
  box-shadow: 0 1px 3px rgba(15, 23, 42, .1);
  font-weight: 600;
}

.chk {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  color: var(--text);
  cursor: pointer;
  user-select: none;
}

.chk input {
  width: 16px;
  height: 16px;
  accent-color: var(--primary);
}

.icon-tools {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.icon-tools button {
  height: 36px;
  padding: 0 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--text);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}

.icon-tools button:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* -------------------------------- 结果 --------------------------------- */

.stage {
  border: 1px solid var(--line);
  border-radius: 18px;
  background:
    linear-gradient(45deg, var(--stage-bg) 25%, transparent 25%, transparent 75%, var(--stage-bg) 75%),
    linear-gradient(45deg, var(--stage-bg) 25%, transparent 25%, transparent 75%, var(--stage-bg) 75%);
  background-size: 18px 18px;
  background-position: 0 0, 9px 9px;
  padding: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 220px;
  overflow: hidden;
}

.stage img {
  max-width: 100%;
  max-height: 460px;
  display: block;
  border-radius: 8px;
}

.out-meta {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}

.out-meta b {
  color: var(--text);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  height: 46px;
  border: 0;
  border-radius: 14px;
  background: var(--primary);
  color: #fff;
  font: inherit;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}

.btn-primary[disabled],
.btn-primary.is-off {
  opacity: .45;
  pointer-events: none;
}

.btn-ghost {
  height: 40px;
  padding: 0 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--text);
  font: inherit;
  font-size: 13.5px;
  cursor: pointer;
}

.side .btn-primary {
  margin-top: 12px;
}

.hint {
  margin: 10px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}

.hint.warn {
  color: #c2410c;
}

.presets {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.presets button {
  height: 32px;
  padding: 0 11px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--field-bg);
  color: var(--muted);
  font: inherit;
  font-size: 12.5px;
  cursor: pointer;
}

.presets button:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.foot-note {
  margin: 26px 0 0;
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.8;
}

/* hidden 属性要压得住 .drop-inner 的 display:flex */
#img-tool [hidden],
.drop [hidden] {
  display: none !important;
}

/* 手机上：结果一出来，底部浮一条，随时能保存 */
.mini-bar {
  display: none;
}

@media (max-width: 899px) {
  .mini-bar {
    position: fixed;
    left: 12px;
    right: 12px;
    bottom: calc(12px + env(safe-area-inset-bottom, 0px));
    z-index: 40;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 12px 10px 16px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: var(--card);
    box-shadow: 0 12px 32px rgba(15, 23, 42, .16);
  }
  .mini-bar[hidden] {
    display: none !important;
  }
  .mini-bar span {
    font-size: 12.5px;
    color: var(--muted);
  }
  .mini-bar .btn-primary {
    width: auto;
    height: 40px;
    padding: 0 20px;
    font-size: 14px;
  }
  body.has-bar {
    padding-bottom: 84px;
  }
}

:root[data-theme="dark"] input[type="number"],
:root[data-theme="dark"] input[type="text"],
:root[data-theme="dark"] select {
  background: var(--field-bg);
  color: var(--text);
  border-color: var(--line);
}

:root[data-theme="dark"] .seg,
:root[data-theme="dark"] .presets button,
:root[data-theme="dark"] .icon-tools button,
:root[data-theme="dark"] .btn-ghost {
  background: var(--field-bg);
  color: var(--text);
  border-color: var(--line);
}

:root[data-theme="dark"] .seg button[aria-pressed="true"] {
  background: #1f2937;
  color: #fff;
}

:root[data-theme="dark"] .drop.is-over {
  background: var(--primary-soft);
}