/* ═══════════════════════════════════════════════════════════
   VitreLens · 液态玻璃水印
   ═══════════════════════════════════════════════════════════ */

*,
*::before,
*::after { box-sizing: border-box; }

:root {
  --bg:            #06070a;
  --bg-soft:       #0a0c11;
  --panel:         rgba(16, 19, 25, 0.82);
  --panel-solid:   #101319;
  --line:          rgba(255, 255, 255, 0.072);
  --line-strong:   rgba(255, 255, 255, 0.13);
  --txt:           #eef1f6;
  --txt-2:         #a3abba;
  --txt-3:         #798295;
  --acc:           #8fd8ff;
  --acc-soft:      rgba(143, 216, 255, 0.14);
  --acc-line:      rgba(143, 216, 255, 0.42);
  --violet:        #b8a5ff;
  --danger:        #ff8a8a;
  --r-sm:          8px;
  --r-md:          11px;
  --r-lg:          16px;
  --shadow-card:   0 24px 70px rgba(0, 0, 0, 0.55);
  --ease:          cubic-bezier(0.22, 0.61, 0.36, 1);
  --font-ui:       -apple-system, BlinkMacSystemFont, "Segoe UI Variable Text", "Segoe UI",
                   "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono:     "SF Mono", "JetBrains Mono", "Cascadia Mono", Consolas, monospace;
}

html, body {
  height: 100%;
  margin: 0;
}

body {
  background: var(--bg);
  color: var(--txt);
  font-family: var(--font-ui);
  font-size: 13px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: 0.028;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}

[hidden] { display: none !important; }

button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; border: 0; background: none; }
::selection { background: rgba(143, 216, 255, 0.28); }

.app {
  height: 100%;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

/* ═══════════ 顶栏 ═══════════ */

.topbar {
  position: relative;
  z-index: 30;
  flex: 0 0 auto;
  height: 58px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 14px 0 18px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(17, 20, 27, 0.9), rgba(11, 13, 18, 0.86));
  backdrop-filter: blur(24px) saturate(140%);
}

.brand { display: flex; align-items: center; gap: 10px; user-select: none; }
.brand-mark { display: flex; filter: drop-shadow(0 2px 10px rgba(143, 216, 255, 0.25)); }
.brand-text { display: flex; align-items: baseline; gap: 9px; }
.brand-text strong {
  font-size: 14.5px;
  font-weight: 620;
  letter-spacing: 0.01em;
  background: linear-gradient(100deg, #ffffff 10%, #cfe9ff 55%, #cdc2ff 95%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.brand-text em {
  font-style: normal;
  font-size: 10.5px;
  letter-spacing: 0.09em;
  color: var(--txt-3);
  padding-left: 9px;
  border-left: 1px solid var(--line-strong);
}

.topbar-spacer { flex: 1; }
.topbar-actions { display: flex; align-items: center; gap: 8px; }

/* ═══════════ 按钮 ═══════════ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  height: 33px;
  padding: 0 13px;
  border-radius: 9px;
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: background 0.16s var(--ease), border-color 0.16s var(--ease),
              transform 0.12s var(--ease), opacity 0.16s;
}
.btn:active { transform: translateY(0.5px) scale(0.995); }
.btn:disabled { opacity: 0.34; pointer-events: none; }
.btn:focus-visible { outline: 2px solid var(--acc-line); outline-offset: 2px; }

.btn-ghost {
  color: var(--txt-2);
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--line);
}
.btn-ghost:hover { color: var(--txt); background: rgba(255, 255, 255, 0.07); border-color: var(--line-strong); }

.btn-icon { width: 33px; padding: 0; }

.btn-primary {
  position: relative;
  color: #041420;
  font-weight: 600;
  background: linear-gradient(180deg, #e8f8ff 0%, #b6e6ff 48%, #93d6fb 100%);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.85) inset,
              0 -1px 0 rgba(0, 40, 60, 0.18) inset,
              0 6px 18px -6px rgba(120, 205, 255, 0.55);
}
.btn-primary:hover {
  background: linear-gradient(180deg, #ffffff 0%, #c6eeff 48%, #a3ddfd 100%);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.9) inset,
              0 8px 24px -6px rgba(120, 205, 255, 0.7);
}
.btn-primary svg { opacity: 0.85; }

.btn-block { width: 100%; height: 36px; margin-top: 4px; }

.btn.is-busy { pointer-events: none; }
.btn.is-busy .btn-label { opacity: 0.55; }
.btn.is-busy::after {
  content: "";
  position: absolute;
  width: 13px; height: 13px;
  margin-left: 6px;
  border: 1.6px solid rgba(4, 20, 32, 0.25);
  border-top-color: rgba(4, 20, 32, 0.85);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.mini-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  height: 20px;
  padding: 0 7px;
  border-radius: 6px;
  font-size: 10.5px;
  letter-spacing: 0.03em;
  color: var(--txt-3);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  transition: all 0.15s var(--ease);
}
.mini-btn:hover { color: var(--acc); border-color: var(--acc-line); background: var(--acc-soft); }

/* ═══════════ 工作区 ═══════════ */

.workspace {
  flex: 1 1 auto;
  display: flex;
  min-height: 0;
}

/* ───────── 画布区 ───────── */

.stage {
  position: relative;
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  padding: 0;
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 12% 0%, rgba(30, 56, 78, 0.55), transparent 55%),
    radial-gradient(110% 100% at 92% 100%, rgba(48, 36, 74, 0.42), transparent 58%),
    linear-gradient(180deg, #080a0e, #06070a 70%);
}

.stage-ambient { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.blob { position: absolute; border-radius: 50%; filter: blur(90px); opacity: 0.62; }
.blob-a {
  width: 520px; height: 520px; left: -160px; top: -180px;
  background: radial-gradient(circle, rgba(88, 176, 226, 0.32), transparent 68%);
}
.blob-b {
  width: 620px; height: 620px; right: -220px; bottom: -300px;
  background: radial-gradient(circle, rgba(150, 120, 235, 0.26), transparent 70%);
}
.grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.028) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(circle at 50% 45%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(circle at 50% 45%, #000 0%, transparent 78%);
}

.stage-scroll {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  padding: 10px 14px 44px;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
}
.stage-scroll::-webkit-scrollbar { display: none; }
.stage-scroll.is-pannable { cursor: grab; }
.stage-scroll.is-panning { cursor: grabbing; }

.canvas-shell {
  position: relative;
  flex: 0 0 auto;
  margin: 0 auto;
  z-index: 2;
  line-height: 0;
  border-radius: 4px;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.09),
    0 40px 90px -20px rgba(0, 0, 0, 0.85),
    0 8px 24px -8px rgba(0, 0, 0, 0.6);
  animation: canvasIn 0.5s var(--ease) both;
}
.canvas-shell canvas {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 4px;
}
@keyframes canvasIn {
  from { opacity: 0; transform: scale(0.985) translateY(6px); }
  to   { opacity: 1; transform: none; }
}

/* 空状态 */

.dz-demo {
  position: relative;
  margin: -26px -26px 24px;
  border-radius: 18px;
  overflow: hidden;
  background: #10141b;
  box-shadow: 0 12px 34px -16px rgba(0, 0, 0, 0.9), inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}
.dz-demo canvas { display: block; width: 100%; height: auto; }
.dz-demo-tag {
  position: absolute;
  top: 9px; left: 11px;
  font-size: 9px;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.62);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.6);
}
.dz-demo.is-off { display: none; }

.dz-feats {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}
.dz-feats span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 9px;
  border-radius: 7px;
  font-size: 10.5px;
  letter-spacing: 0.01em;
  color: rgba(190, 202, 218, 0.72);
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.06);
}
.dz-feats i {
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--acc);
  box-shadow: 0 0 6px rgba(143, 216, 255, 0.8);
  opacity: 0.85;
}

.dropzone {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  animation: fadeUp 0.5s var(--ease) both;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}

.dz-glass {
  position: relative;
  width: min(560px, 74vw);
  border-radius: 28px;
  padding: 1px;
  background: linear-gradient(150deg, rgba(255, 255, 255, 0.42), rgba(255, 255, 255, 0.06) 38%, rgba(255, 255, 255, 0.02) 62%, rgba(190, 220, 255, 0.28));
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.9), 0 0 90px -30px rgba(120, 190, 255, 0.25);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.dz-glass::before {
  content: "";
  position: absolute;
  inset: 8px 20px auto;
  height: 40%;
  border-radius: 26px 26px 60% 60%;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.16), transparent 80%);
  filter: blur(8px);
  pointer-events: none;
}
.dz-inner {
  position: relative;
  border-radius: 25px;
  padding: 32px 32px 28px;
  text-align: center;
  background: linear-gradient(170deg, rgba(26, 33, 44, 0.78), rgba(12, 15, 21, 0.86));
  backdrop-filter: blur(26px) saturate(125%);
  overflow: hidden;
}
.dz-inner::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.16), inset 0 -1px 0 rgba(0, 0, 0, 0.4);
  pointer-events: none;
}
.dz-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px; height: 54px;
  margin-bottom: 18px;
  border-radius: 16px;
  color: #d8f1ff;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.04));
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.28), 0 10px 26px -14px rgba(140, 210, 255, 0.6);
}
.dropzone h1 {
  margin: 0 0 9px;
  font-size: 20px;
  font-weight: 560;
  letter-spacing: 0.005em;
  color: #f2f6fb;
}
.dropzone p {
  margin: 0 auto 22px;
  max-width: 340px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--txt-3);
}
.dz-btn { height: 38px; padding: 0 20px; border-radius: 10px; font-size: 13px; }
.dz-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 11px;
  color: rgba(150, 160, 178, 0.75);
}
.dz-formats {
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: rgba(120, 130, 148, 0.6);
}

.stage.is-drag .dz-glass { transform: translateY(-2px) scale(1.008); box-shadow: 0 40px 100px -30px rgba(0,0,0,.9), 0 0 120px -24px rgba(140, 210, 255, 0.5); }

/* HUD */

.stage-hud {
  position: absolute;
  left: 20px;
  bottom: 18px;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 10px;
  height: 26px;
  padding: 0 11px;
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.02em;
  color: var(--txt-3);
  background: rgba(12, 15, 21, 0.7);
  border: 1px solid var(--line);
  backdrop-filter: blur(14px);
}
.hud-sep { width: 1px; height: 11px; background: var(--line-strong); }

/* 视图切换 */

.view-toggle {
  position: absolute;
  z-index: 7;
  top: 12px;
  right: 16px;
  display: flex;
  gap: 2px;
  padding: 3px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(140deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.04) 50%, rgba(255, 255, 255, 0.1));
  backdrop-filter: blur(18px) saturate(160%);
  box-shadow: 0 6px 20px -8px rgba(0, 0, 0, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.32);
}
.view-toggle button {
  height: 26px;
  padding: 0 12px;
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: 0.02em;
  color: rgba(220, 230, 242, 0.62);
  transition: all 0.16s var(--ease);
}
.view-toggle button:hover { color: #eaf6ff; }
.view-toggle button.is-on {
  color: #06131c;
  font-weight: 600;
  background: linear-gradient(180deg, #eaf9ff, #a9dcf5);
  box-shadow: inset 0 1px 0 #fff, 0 2px 8px -2px rgba(0, 0, 0, 0.5);
}

/* 空内容提示 */

.stage-hint {
  position: absolute;
  z-index: 5;
  left: 50%;
  bottom: 58px;
  transform: translateX(-50%);
  padding: 7px 13px;
  border-radius: 8px;
  font-size: 11px;
  letter-spacing: 0.01em;
  color: rgba(255, 214, 170, 0.92);
  background: rgba(38, 26, 18, 0.78);
  border: 1px solid rgba(255, 190, 130, 0.28);
  backdrop-filter: blur(12px);
  white-space: nowrap;
}

.hud-hdr {
  color: #ffcf9a;
  border-color: rgba(255, 190, 130, 0.35);
}

.fineprint-warn { color: rgba(255, 198, 145, 0.86); }
.fineprint-info { color: rgba(143, 216, 255, 0.82); }
.hud-motion { color: #a9e6c8; border-color: rgba(120, 220, 170, 0.35); }

/* 胶片条 */

.filmstrip {
  position: absolute;
  z-index: 4;
  left: 50%;
  bottom: 14px;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  padding: 6px;
  max-width: calc(100% - 80px);
  overflow-x: auto;
  border-radius: 12px;
  background: rgba(11, 13, 18, 0.72);
  border: 1px solid var(--line);
  backdrop-filter: blur(18px);
  scrollbar-width: none;
}
.filmstrip::-webkit-scrollbar { display: none; }
.thumb {
  position: relative;
  width: 42px; height: 42px;
  flex: 0 0 auto;
  border-radius: 7px;
  overflow: hidden;
  background: #0d1015;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1);
  transition: box-shadow 0.16s var(--ease), transform 0.16s var(--ease);
}
.thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.thumb:hover { transform: translateY(-1px); }
.thumb { overflow: visible; }
.thumb img { border-radius: inherit; }
.thumb.is-on { box-shadow: 0 0 0 1.5px var(--acc), 0 4px 14px -4px rgba(143, 216, 255, 0.6); }
.thumb-del {
  position: absolute;
  top: -2px;
  right: -2px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  line-height: 1;
  color: #fff;
  background: rgba(12, 14, 20, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.3);
  opacity: 0;
  transform: scale(0.8);
  transition: opacity 0.15s var(--ease), transform 0.15s var(--ease), background 0.15s;
  cursor: pointer;
}
.thumb:hover .thumb-del { opacity: 1; transform: scale(1); }
.thumb-del:hover { background: #d64545; border-color: #ff8080; }

.thumb-add {
  display: flex; align-items: center; justify-content: center;
  color: var(--txt-3);
  border: 1px dashed rgba(255, 255, 255, 0.16);
  box-shadow: none;
  background: rgba(255, 255, 255, 0.02);
}
.thumb-add:hover { color: var(--acc); border-color: var(--acc-line); }

/* ───────── 检查器 ───────── */

.inspector {
  position: relative;
  z-index: 20;
  flex: 0 0 368px;
  width: 368px;
  border-left: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(13, 16, 22, 0.96), rgba(9, 11, 15, 0.98));
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.insp-scroll {
  flex: 1 1 auto;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.14) transparent;
}
.insp-scroll::-webkit-scrollbar { width: 9px; }
.insp-scroll::-webkit-scrollbar-track { background: transparent; }
.insp-scroll::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.11);
  border: 3px solid transparent;
  background-clip: content-box;
  border-radius: 8px;
}
.insp-scroll::-webkit-scrollbar-thumb:hover { background: rgba(255, 255, 255, 0.2); background-clip: content-box; }

.sec {
  padding: 17px 18px 20px;
  border-bottom: 1px solid var(--line);
}
.sec-last { border-bottom: 0; padding-bottom: 28px; }

.sec-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 15px;
}
.sec-idx {
  font-family: var(--font-mono);
  font-size: 9.5px;
  color: rgba(143, 216, 255, 0.55);
  letter-spacing: 0.06em;
  padding: 2px 4px;
  border: 1px solid rgba(143, 216, 255, 0.16);
  border-radius: 4px;
  line-height: 1;
}
.sec-head h2 {
  margin: 0;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: #dfe4ee;
}
.sec-hint {
  margin-left: auto;
  font-size: 10px;
  letter-spacing: 0.04em;
  color: var(--txt-3);
}
.sec-hint.is-ok { color: rgba(143, 216, 255, 0.85); }
.sec-hint.is-warn { color: rgba(255, 190, 130, 0.85); }

/* 表单 */

.field { display: block; margin-bottom: 13px; }
.field:last-child { margin-bottom: 0; }
.field-label {
  display: block;
  margin-bottom: 6px;
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--txt-3);
}
.field-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}
.field-row .field-label { margin-bottom: 0; }
.field-row-pad { margin: 14px 0 0; }

input[type="text"] {
  width: 100%;
  height: 34px;
  padding: 0 11px;
  border-radius: 8px;
  font-size: 12.5px;
  letter-spacing: 0.005em;
  color: #e9eef7;
  background: rgba(255, 255, 255, 0.032);
  border: 1px solid var(--line);
  transition: border-color 0.15s var(--ease), background 0.15s var(--ease), box-shadow 0.15s var(--ease);
}
input[type="text"]::placeholder { color: rgba(120, 130, 148, 0.55); }
input[type="text"]:hover { border-color: rgba(255, 255, 255, 0.12); }
input[type="text"]:focus {
  outline: none;
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(143, 216, 255, 0.5);
  box-shadow: 0 0 0 3px rgba(143, 216, 255, 0.1);
}

/* 快捷 chip */

.chips { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 7px; }
.chip {
  height: 22px;
  max-width: 100%;
  padding: 0 8px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  border-radius: 6px;
  font-size: 10.5px;
  color: var(--txt-3);
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--line);
  transition: all 0.15s var(--ease);
}
.chip:hover { color: var(--txt); border-color: var(--line-strong); background: rgba(255, 255, 255, 0.06); }

/* 品牌网格 */

.brands {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 5px;
}
.brand-btn {
  position: relative;
  height: 50px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--line);
  transition: all 0.15s var(--ease);
}
.brand-btn canvas { display: block; height: 17px; width: auto; opacity: 0.72; transition: opacity 0.15s; }
.brand-btn span { font-size: 9px; letter-spacing: 0.03em; color: var(--txt-3); transition: color 0.15s; }
.brand-btn:hover { background: rgba(255, 255, 255, 0.055); border-color: var(--line-strong); }
.brand-btn:hover canvas { opacity: 0.95; }
.brand-btn.is-on {
  background: linear-gradient(180deg, rgba(143, 216, 255, 0.16), rgba(143, 216, 255, 0.06));
  border-color: rgba(143, 216, 255, 0.45);
  box-shadow: 0 0 0 1px rgba(143, 216, 255, 0.12), 0 6px 16px -10px rgba(143, 216, 255, 0.7);
}
.brand-btn.is-on canvas { opacity: 1; }
.brand-btn.is-on span { color: #d9f2ff; }

/* 开关组 */

.toggles { display: flex; gap: 5px; margin-top: 14px; }
.tg {
  flex: 1;
  height: 26px;
  border-radius: 6px;
  font-size: 10.5px;
  letter-spacing: 0.02em;
  color: var(--txt-3);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--line);
  transition: all 0.15s var(--ease);
}
.tg:hover { color: var(--txt-2); }
.tg.is-on {
  color: #cfeaff;
  background: rgba(143, 216, 255, 0.1);
  border-color: rgba(143, 216, 255, 0.3);
}

/* 分段控件 */

.seg {
  display: flex;
  gap: 2px;
  padding: 2px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.032);
  border: 1px solid var(--line);
}
.seg button {
  flex: 1;
  height: 27px;
  border-radius: 6px;
  font-size: 11px;
  color: var(--txt-3);
  transition: all 0.15s var(--ease);
}
.seg button:hover { color: var(--txt-2); }
.seg button.is-on {
  color: #f2fbff;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.16), rgba(160, 210, 255, 0.09));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2),
              0 1px 3px rgba(0, 0, 0, 0.35),
              0 0 0 1px rgba(143, 216, 255, 0.16);
}
.seg-4 button { font-size: 10.5px; }

/* 滑块 */

.ctrl { margin-bottom: 12px; }
.ctrl:last-child { margin-bottom: 0; }
.ctrl-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 7px;
}
.ctrl-top span { font-size: 11px; letter-spacing: 0.04em; color: var(--txt-3); }
.ctrl-top output {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: rgba(190, 205, 222, 0.9);
  font-variant-numeric: tabular-nums;
}

/* ── 液态玻璃滑块：玻璃珠内部「放大折射」下方轨道（参考 liquid-glass-demo 的做法） ── */

.range-wrap {
  position: relative;
  height: 36px;
  --r: 0.5;
  --lens-w: 300px;
  --lens-fill: 30px;
  --lens-tx: 0px;
  --track-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.03) 42%, rgba(0, 0, 0, 0.34)),
              rgba(10, 16, 26, 0.62);
  --fill-bg: linear-gradient(180deg, rgba(222, 247, 255, 0.96) 0%, rgba(126, 200, 243, 0.94) 52%, rgba(84, 156, 206, 0.96) 100%);
}

/* 原生 input 仅保留键盘与无障碍 */
.range-wrap input[type="range"] {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  pointer-events: none;
  -webkit-appearance: none;
  appearance: none;
}

.range-track {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  height: 14px;
  border-radius: 7px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: var(--track-bg);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.48),
    inset 0 -1px 1.5px rgba(0, 0, 0, 0.55),
    0 2px 8px rgba(0, 0, 0, 0.35);
  overflow: hidden;
}

.range-fill {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: calc(19px + (100% - 38px) * var(--r));
  border-radius: 7px;
  background: var(--fill-bg);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.85), inset 0 -1px 2px rgba(8, 46, 74, 0.4);
}
.range-fill::after {
  content: "";
  position: absolute;
  left: 3px;
  right: 3px;
  top: 1px;
  height: 38%;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.65), rgba(255, 255, 255, 0));
}

/* ── 玻璃珠：内部是放大 1.34 倍的轨道副本，形成真实透镜效果 ── */
.range-thumb {
  position: absolute;
  top: 50%;
  left: calc(19px + (100% - 38px) * var(--r));
  width: 38px;
  height: 30px;
  margin-left: -19px;
  margin-top: -15px;
  border-radius: 15px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.42), rgba(206, 232, 255, 0.24));
  overflow: hidden;
  box-shadow:
    0 3px 12px rgba(0, 0, 0, 0.45),
    0 1px 2px rgba(0, 0, 0, 0.35),
    0 0 0 0.5px rgba(255, 255, 255, 0.35);
  transition: transform 0.34s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.2s var(--ease);
  transform-origin: 50% 50%;
  pointer-events: none;
}

.thumb-lens {
  position: absolute;
  inset: 0;
  filter: url(#thumbGlass);
}

.thumb-lens-group {
  position: absolute;
  left: 0;
  top: 50%;
  width: var(--lens-w);
  height: 14px;
  margin-top: -7px;
  transform: translate(var(--lens-tx), 0);
}

.thumb-lens-track {
  position: absolute;
  inset: 0;
  border-radius: 7px;
  background: var(--track-bg);
}

.thumb-lens-fill {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--lens-fill);
  border-radius: 7px;
  background: var(--fill-bg);
}

/* 玻璃表面：边缘高光 + 顶部镜面 + 底部焦散 */
.thumb-gloss {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  border: 1px solid rgba(255, 255, 255, 0.55);
  background:
    radial-gradient(120% 90% at 30% 6%, rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0.06) 46%, rgba(255, 255, 255, 0) 72%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0) 38%, rgba(255, 255, 255, 0) 62%, rgba(190, 232, 255, 0.16));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.95),
    inset 0 -1px 2px rgba(0, 20, 40, 0.45);
}
.thumb-gloss::after {
  content: "";
  position: absolute;
  left: 18%;
  top: 12%;
  width: 38%;
  height: 30%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0) 70%);
  filter: blur(0.6px);
}

.range-hit {
  position: absolute;
  inset: 0;
  touch-action: pan-y;
  cursor: pointer;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: transparent;
}

/* 按下 / 拖动反馈 */
.ctrl.is-pressing .range-thumb { transform: scale(1.04); }
.ctrl.is-dragging .range-thumb {
  transform: scale(1.42);
  z-index: 6;
  border-color: rgba(255, 255, 255, 0.85);
  box-shadow:
    0 10px 28px rgba(0, 0, 0, 0.6),
    0 0 0 1px rgba(255, 255, 255, 0.55),
    0 0 22px rgba(120, 200, 255, 0.35);
}

/* 边缘色散环：拖动时出现，模拟玻璃棱边的彩色分离 */
.thumb-chroma {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.22s var(--ease);
  background: conic-gradient(from 200deg,
    rgba(255, 70, 110, 0.85),
    rgba(255, 200, 90, 0.5),
    rgba(80, 255, 190, 0.5),
    rgba(70, 160, 255, 0.85),
    rgba(200, 90, 255, 0.7),
    rgba(255, 70, 110, 0.85));
  -webkit-mask: radial-gradient(closest-side, transparent 58%, #000 74%, transparent 97%);
  mask: radial-gradient(closest-side, transparent 58%, #000 74%, transparent 97%);
  mix-blend-mode: screen;
  filter: blur(1.2px);
}
.ctrl.is-dragging .thumb-chroma { opacity: 0.55; }
.ctrl.is-dragging .range-fill { filter: brightness(1.08); }
.ctrl.is-dragging .ctrl-top output { color: var(--acc); }

.range-wrap:focus-within .range-thumb {
  box-shadow:
    0 3px 12px rgba(0, 0, 0, 0.45),
    0 0 0 5px rgba(143, 216, 255, 0.22),
    0 0 0 0.5px rgba(255, 255, 255, 0.5);
}

/* 玻璃预设 */

.presets {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  margin-bottom: 16px;
}
.preset {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1px;
  padding: 8px 9px 9px;
  border-radius: 9px;
  text-align: left;
  background: rgba(255, 255, 255, 0.022);
  border: 1px solid var(--line);
  transition: all 0.16s var(--ease);
  overflow: hidden;
}
.preset::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 100% at 10% 0%, rgba(255, 255, 255, 0.08), transparent 60%);
  opacity: 0;
  transition: opacity 0.2s;
}
.preset:hover { border-color: var(--line-strong); background: rgba(255, 255, 255, 0.05); }
.preset:hover::before { opacity: 1; }
.preset b { position: relative; font-size: 11.5px; font-weight: 550; color: var(--txt-2); }
.preset i { position: relative; font-style: normal; font-size: 9px; color: var(--txt-3); letter-spacing: 0.02em; }
.preset-dot {
  position: relative;
  width: 7px; height: 7px;
  margin-bottom: 5px;
  border-radius: 50%;
  background: var(--c);
  box-shadow: 0 0 8px var(--c);
  opacity: 0.75;
}
.preset.is-on {
  background: linear-gradient(180deg, rgba(143, 216, 255, 0.12), rgba(143, 216, 255, 0.03));
  border-color: rgba(143, 216, 255, 0.34);
}
.preset.is-on b { color: #e6f6ff; }

/* 开关 */

.switch {
  position: relative;
  width: 34px; height: 19px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid var(--line);
  transition: background 0.2s var(--ease), border-color 0.2s;
}
.switch i {
  position: absolute;
  top: 2px; left: 2px;
  width: 13px; height: 13px;
  border-radius: 50%;
  background: #8b93a3;
  transition: transform 0.2s var(--ease), background 0.2s;
}
.switch[aria-pressed="true"] { background: rgba(143, 216, 255, 0.85); border-color: transparent; }
.switch[aria-pressed="true"] i { transform: translateX(15px); background: #072030; }

/* 说明文字 */

.fineprint {
  margin: 14px 0 0;
  font-size: 10.5px;
  line-height: 1.65;
  color: rgba(120, 130, 148, 0.72);
}

/* 提示条 */

.toast-stack {
  position: fixed;
  left: 50%;
  top: 70px;
  z-index: 200;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  pointer-events: none;
}
.toast {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 9px;
  font-size: 11.5px;
  letter-spacing: 0.01em;
  color: #dfe8f3;
  background: rgba(18, 22, 29, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 14px 40px -12px rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(18px);
  animation: toastIn 0.28s var(--ease) both;
}
.toast::before {
  content: "";
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--acc);
  box-shadow: 0 0 8px var(--acc);
}
.toast.is-warn::before { background: #ffc07a; box-shadow: 0 0 8px #ffc07a; }
.toast.is-out { animation: toastOut 0.25s var(--ease) both; }
@keyframes toastIn { from { opacity: 0; transform: translateY(-8px) scale(0.97); } }
@keyframes toastOut { to { opacity: 0; transform: translateY(-4px) scale(0.98); } }

/* 拖拽遮罩 */

.drag-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(6, 12, 18, 0.72);
  backdrop-filter: blur(8px);
  pointer-events: none;
}
.drag-overlay.is-on { display: flex; }
.drag-overlay div {
  padding: 26px 64px;
  border-radius: 20px;
  font-size: 15px;
  color: #eaf7ff;
  border: 1.5px dashed rgba(143, 216, 255, 0.55);
  background: rgba(143, 216, 255, 0.07);
  box-shadow: 0 0 80px -20px rgba(143, 216, 255, 0.4);
}

/* 滚动条 / 响应式 */

@media (max-width: 1180px) {
  .inspector { flex-basis: 340px; width: 340px; }
  .stage { padding: 10px 12px 44px; }
}
@media (max-width: 980px) {
  .workspace { flex-direction: column; }
  .dz-demo { display: none; }
  .dz-feats { display: none; }
  .dz-inner { padding: 26px 24px 22px; }
  .dropzone h1 { font-size: 17px; }
  .dropzone p { margin-bottom: 16px; font-size: 11.5px; }
  .dz-icon { width: 46px; height: 46px; margin-bottom: 14px; border-radius: 14px; }
  .dz-glass { width: min(460px, 88vw); }
  .dz-note, .dz-formats { display: none; }
  .inspector {
    flex: 0 0 46vh;
    width: 100%;
    border-left: 0;
    border-top: 1px solid var(--line);
  }
  .stage { flex: 1 1 auto; min-height: 34vh; padding: 12px 12px 46px; }
  .brand-text em { display: none; }
}

/* ── 左侧玻璃导航 + 分页检查器 ── */
.inspector { flex-direction: row; }
.insp-rail {
  flex: 0 0 58px;
  align-self: flex-start;
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin: 10px 0 10px 10px;
  padding: 4px;
  border-radius: 20px;
  background: linear-gradient(145deg, rgba(255,255,255,.16), rgba(255,255,255,.045));
  border: 1px solid rgba(255,255,255,.13);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.18), 0 12px 30px -18px rgba(0,0,0,.8);
  backdrop-filter: blur(22px) saturate(145%);
}
.insp-rail button {
  height: 46px;
  padding: 0;
  border-radius: 16px;
  font-size: 12px;
  color: rgba(255,255,255,.56);
  transition: color .18s var(--ease), background .18s var(--ease), transform .18s var(--ease);
}
.insp-rail button:hover { color: #fff; background: rgba(255,255,255,.06); }
.insp-rail button.is-on {
  color: #171b21;
  font-weight: 650;
  background: linear-gradient(180deg, rgba(255,255,255,.94), rgba(224,233,241,.72));
  border: 1px solid rgba(255,255,255,.7);
  box-shadow: inset 0 1px 0 #fff, 0 3px 10px -4px rgba(0,0,0,.55);
}
.insp-scroll { min-width: 0; }
.insp-scroll [data-page] { display: none; }
.insp-scroll [data-page].is-active {
  display: block;
  animation: pageSlideIn .21s cubic-bezier(.2,.75,.3,1) both;
}
@keyframes pageSlideIn {
  from { opacity: 0; transform: translateX(18px); }
  to { opacity: 1; transform: translateX(0); }
}
.advanced { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); }
.advanced summary {
  margin-bottom: 13px;
  cursor: pointer;
  color: var(--txt-2);
  font-size: 11px;
  letter-spacing: .04em;
  user-select: none;
}
.presets-4 { grid-template-columns: repeat(4, 1fr); }
.presets-4 .preset { min-width: 0; padding-left: 4px; padding-right: 4px; }
.presets-4 .preset i { font-size: 8px; }
.color-row { display: flex; align-items: center; gap: 10px; }
.color-row input[type="color"] {
  width: 44px; height: 32px; padding: 2px;
  border-radius: 9px; border: 1px solid var(--line-strong);
  background: rgba(255,255,255,.05); cursor: pointer;
}
.color-row .mini-btn { height: 28px; }
@media (max-width: 980px) {
  .insp-rail { margin-top: 8px; margin-bottom: 8px; }
  .insp-rail button { height: 42px; }
}
.topbar-links {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 3px;
  border-radius: 10px;
  background: rgba(255,255,255,.035);
  border: 1px solid rgba(255,255,255,.075);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.045);
}
.topbar-links a {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 27px;
  padding: 0 11px;
  border-radius: 7px;
  color: var(--txt-2);
  text-decoration: none;
  font-size: 11.5px;
  letter-spacing: .015em;
  white-space: nowrap;
  transition: color .15s var(--ease), background .15s var(--ease);
}
.topbar-links a span { color: var(--txt-3); font-size: 11px; }
.topbar-links a:hover { color: #ecf7ff; background: rgba(255,255,255,.065); }
.topbar-links a:hover span { color: var(--acc); }
.topbar-links i { width: 1px; height: 12px; background: var(--line-strong); }
.capability-note {
  padding: 10px 11px;
  border-radius: 8px;
  line-height: 1.65;
  color: rgba(190,215,235,.82);
  background: rgba(143,216,255,.055);
  border: 1px solid rgba(143,216,255,.12);
}
.capability-note a { color: var(--acc); text-decoration: none; }
.capability-note a:hover { text-decoration: underline; }
@media (max-width: 1100px) {
  .topbar-links { position: static; transform: none; margin-left: auto; }
  .topbar-spacer { display: none; }
}
@media (max-width: 760px) {
  .topbar-links { display: none; }
}
.label-short { display: none; }
@media (max-width: 680px) {
  .topbar { padding: 0 8px; gap: 6px; }
  .topbar-actions { gap: 5px; flex-shrink: 0; }
  .brand-text { gap: 0; }
  .brand-text strong { font-size: 13px; }
  #btnOpen { width: 33px; padding: 0; }
  #btnOpen span { display: none; }
  #btnExport .label-full { display: none; }
  #btnExport .label-short { display: inline; }
}
@media (max-width: 480px) {
  .brand-mark { display: none; }
}