/* 老孟ai画布 · 官方网站视觉系统
 * 严格承袭画布本体的设计令牌（laomeng-theme.css）：
 * Dark:  #0c0f14 Obsidian / #131720 Card / #57a391 Pine Jade
 * Light: #f6f7f9 Mist     / #ffffff Card / #2c6055 Forest Emerald
 */

:root {
  --bg: #0c0f14;
  --page: #0c0f14;
  --panel: rgba(19, 23, 32, 0.86);
  --panel-solid: #131720;
  --card: #131720;
  --soft: #181d28;
  --soft-2: #202736;
  --line: #232a38;
  --line-2: #323c4f;
  --text: #e6eaf2;
  --muted: #8f9bad;
  --faint: #5f6c80;
  --grid-dot: rgba(148, 163, 184, 0.16);

  /* 松翠主题强调色（Dark 默认） */
  --accent: #57a391;
  --accent-hover: #6ab5a3;
  --accent-bright: #72c6b2;
  --accent-soft: rgba(87, 163, 145, 0.12);
  --accent-glow: rgba(87, 163, 145, 0.22);
  --accent-btn-bg: linear-gradient(180deg, #2f695d 0%, #25564c 100%);
  --accent-btn-hover: linear-gradient(180deg, #37786a 0%, #2b6357 100%);
  --accent-btn-border: rgba(114, 198, 178, 0.3);
  --accent-btn-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.16), 0 4px 16px rgba(0, 0, 0, 0.4);
  --accent-text: #f0f7f4;

  --seg-track: rgba(0, 0, 0, 0.32);
  --seg-active: #242b3a;
  --seg-active-text: #f3f6fa;
  --seg-active-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 2px 6px rgba(0, 0, 0, 0.36);
  --surface-rim: inset 0 1px 0 rgba(255, 255, 255, 0.055);
  --shadow: rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.52);
  --code-bg: #0a0d12;
  --snap-guide: #82aaca;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-display: 'Space Grotesk', 'Inter', "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

html.theme-light {
  --bg: #f6f7f9;
  --page: #f6f7f9;
  --panel: rgba(255, 255, 255, 0.88);
  --panel-solid: #ffffff;
  --card: #ffffff;
  --soft: #eff1f5;
  --soft-2: #e6e9ef;
  --line: #e4e7ec;
  --line-2: #cfd5df;
  --text: #111827;
  --muted: #5b6472;
  --faint: #8c96a5;
  --grid-dot: rgba(15, 23, 42, 0.12);

  /* 雅致森林翠（Light） */
  --accent: #2c6055;
  --accent-hover: #245047;
  --accent-bright: #2c6055;
  --accent-soft: rgba(44, 96, 85, 0.09);
  --accent-glow: rgba(44, 96, 85, 0.14);
  --accent-btn-bg: linear-gradient(180deg, #2e6559 0%, #245248 100%);
  --accent-btn-hover: linear-gradient(180deg, #357365 0%, #2a5d52 100%);
  --accent-btn-border: #204940;
  --accent-btn-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18), 0 4px 12px rgba(15, 23, 42, 0.15);
  --accent-text: #ffffff;

  --seg-track: rgba(15, 23, 42, 0.055);
  --seg-active: #ffffff;
  --seg-active-text: #111827;
  --seg-active-shadow: 0 1px 4px rgba(15, 23, 42, 0.1), 0 0 0 1px rgba(15, 23, 42, 0.04);
  --surface-rim: inset 0 1px 0 rgba(255, 255, 255, 0.85);
  --shadow: rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 24px 60px rgba(15, 23, 42, 0.11);
  --code-bg: #eef1f6;
  --snap-guide: #3480bf;
}

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

html {
  scroll-behavior: smooth;
  background: var(--page);
  color: var(--text);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--page);
  background-image: radial-gradient(var(--grid-dot) 1px, transparent 1px);
  background-size: 24px 24px;
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 0.25s ease, color 0.25s ease;
}

a {
  color: inherit;
  text-decoration: none;
}

button, input {
  font: inherit;
}

button {
  cursor: pointer;
  border: 0;
  background: transparent;
  color: inherit;
}

code, pre {
  font-family: var(--font-mono);
}

.container {
  width: min(1240px, calc(100% - 40px));
  margin: 0 auto;
}

/* 顶部环境光晕（克制大厂感） */
.ambient-backdrop {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.ambient-orb {
  position: absolute;
  border-radius: 999px;
  filter: blur(110px);
  opacity: 0.45;
  transition: opacity 0.3s ease;
}

.ambient-orb-1 {
  width: 680px;
  height: 420px;
  top: -180px;
  left: 50%;
  transform: translateX(-50%);
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 72%);
}

.ambient-orb-2 {
  width: 520px;
  height: 520px;
  top: 42%;
  right: -180px;
  background: radial-gradient(circle, rgba(87, 163, 145, 0.1) 0%, transparent 70%);
}

html.theme-light .ambient-orb {
  opacity: 0.55;
}

/* 顶部浮动导航栏 */
.site-header {
  position: sticky;
  top: 14px;
  z-index: 100;
  padding: 0 20px;
  margin-top: 14px;
}

.nav-shell {
  width: min(1240px, 100%);
  margin: 0 auto;
  height: 58px;
  padding: 6px 8px 6px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--surface-rim), 0 10px 32px var(--shadow);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.brand-avatar {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  object-fit: cover;
  border: 1px solid var(--line-2);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.brand-name {
  font-family: var(--font-display);
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.version-pill {
  padding: 2px 8px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  padding: 7px 12px;
  border-radius: 9px;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  transition: color 0.15s ease, background 0.15s ease;
  white-space: nowrap;
}

.nav-links a:hover {
  color: var(--text);
  background: var(--soft);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.icon-pill-btn {
  height: 38px;
  padding: 0 12px;
  border-radius: 10px;
  background: var(--soft);
  border: 1px solid var(--line);
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12.5px;
  font-weight: 600;
  transition: border-color 0.15s ease, background 0.15s ease, transform 0.12s ease;
}

.icon-pill-btn:hover {
  background: var(--soft-2);
  border-color: var(--line-2);
}

.icon-pill-btn svg {
  width: 15px;
  height: 15px;
  color: var(--accent);
}

/* 通用大厂立体键帽主按钮（与画布 .run-btn 同一灵魂） */
.btn-primary {
  height: 40px;
  padding: 0 18px;
  border-radius: 11px;
  background: var(--accent-btn-bg);
  border: 1px solid var(--accent-btn-border);
  color: var(--accent-text);
  box-shadow: var(--accent-btn-shadow);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 600;
  transition: background 0.16s ease, border-color 0.16s ease, transform 0.12s ease, box-shadow 0.16s ease;
  white-space: nowrap;
}

.btn-primary:hover {
  background: var(--accent-btn-hover);
  border-color: var(--accent);
  transform: translateY(-1px);
}

.btn-primary.btn-sm {
  height: 36px;
  padding: 0 14px;
  font-size: 12.5px;
  border-radius: 10px;
}

.btn-primary.btn-lg {
  height: 46px;
  padding: 0 22px;
  font-size: 14.5px;
  border-radius: 12px;
}

.btn-secondary {
  height: 46px;
  padding: 0 20px;
  border-radius: 12px;
  background: var(--panel);
  border: 1px solid var(--line-2);
  color: var(--text);
  box-shadow: var(--surface-rim), 0 4px 16px var(--shadow);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14.5px;
  font-weight: 600;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.12s ease;
  white-space: nowrap;
}

.btn-secondary:hover {
  background: var(--soft);
  border-color: var(--accent);
  transform: translateY(-1px);
}

main {
  position: relative;
  z-index: 1;
}

/* Hero 区 */
.hero-section {
  padding: 58px 0 44px;
}

.hero-header {
  text-align: center;
  max-width: 860px;
  margin: 0 auto 40px;
}

.eyebrow-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 6px 14px 6px 10px;
  border-radius: 999px;
  background: var(--panel);
  border: 1px solid var(--line-2);
  box-shadow: var(--surface-rim), 0 6px 20px var(--shadow);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 22px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-bright);
  box-shadow: 0 0 0 4px var(--accent-soft);
  animation: pulseDot 2.2s infinite ease-in-out;
}

@keyframes pulseDot {
  0%, 100% { box-shadow: 0 0 0 3px var(--accent-soft); }
  50% { box-shadow: 0 0 0 7px transparent; }
}

.eyebrow-divider {
  width: 1px;
  height: 12px;
  background: var(--line-2);
}

.eyebrow-muted {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 11.5px;
}

.hero-title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(36px, 5.2vw, 60px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
}

.gradient-accent-text {
  background: linear-gradient(135deg, var(--accent-bright) 0%, var(--accent) 55%, #84d6c2 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

html.theme-light .gradient-accent-text {
  background: linear-gradient(135deg, #2c6055 0%, #3d8575 60%, #1d463d 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

.hero-subtitle {
  margin: 0 auto 28px;
  max-width: 700px;
  font-size: clamp(15.5px, 1.8vw, 18px);
  color: var(--muted);
  line-height: 1.7;
}

.hero-cta-row {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

.hero-meta-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 12.5px;
  color: var(--muted);
}

.hero-meta-strip span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.hero-meta-strip svg {
  width: 14px;
  height: 14px;
  color: var(--accent);
}

/* 交互式画布工作台舞台（真实复刻老孟画布界面） */
.canvas-stage-wrap {
  position: relative;
  border-radius: 22px;
  border: 1px solid var(--line-2);
  background: var(--card);
  box-shadow: var(--surface-rim), var(--shadow-lg);
  overflow: hidden;
}

.stage-window-bar {
  height: 44px;
  padding: 0 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  background: var(--soft);
  font-size: 12px;
}

.stage-window-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.traffic-dots {
  display: flex;
  gap: 6px;
}

.traffic-dots i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--line-2);
  display: block;
}

.stage-project-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 4px 10px 4px 6px;
  border-radius: 8px;
  background: var(--card);
  border: 1px solid var(--line);
  font-weight: 600;
  font-size: 12px;
}

.stage-project-pill img {
  width: 18px;
  height: 18px;
  border-radius: 5px;
}

.stage-save-pill {
  color: var(--accent);
  font-size: 11px;
  font-weight: 600;
  padding-left: 8px;
  border-left: 1px solid var(--line);
}

.stage-window-hint {
  color: var(--muted);
  font-size: 11.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.kbd-chip {
  padding: 1px 6px;
  border-radius: 5px;
  border: 1px solid var(--line-2);
  background: var(--card);
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--text);
}

.stage-workspace {
  display: grid;
  grid-template-columns: 1fr 350px;
  min-height: 540px;
  background-color: var(--page);
  background-image: radial-gradient(var(--grid-dot) 1px, transparent 1px);
  background-size: 24px 24px;
  position: relative;
}

.mini-canvas-viewport {
  position: relative;
  overflow: hidden;
  min-height: 540px;
  user-select: none;
}

/* 左侧浮动工具条（复刻 .lm-create-tools） */
.mini-dock-left {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 12;
  padding: 4px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--surface-rim), 0 8px 24px var(--shadow);
  backdrop-filter: blur(12px);
}

.mini-tool-btn {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  transition: background 0.15s ease, color 0.15s ease;
}

.mini-tool-btn:hover {
  background: var(--soft);
  color: var(--text);
}

.mini-tool-btn.active {
  background: var(--seg-active);
  color: var(--accent);
  box-shadow: var(--seg-active-shadow);
}

.mini-tool-btn svg {
  width: 16px;
  height: 16px;
}

.mini-dock-divider {
  width: 20px;
  height: 1px;
  margin: 2px auto;
  background: var(--line);
}

/* 右下角视图控制（复刻 .lm-view-tools） */
.mini-dock-bottom {
  position: absolute;
  left: 14px;
  bottom: 14px;
  right: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  pointer-events: none;
  z-index: 10;
}

.mini-pill-dock {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border-radius: 11px;
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--surface-rim), 0 6px 20px var(--shadow);
  backdrop-filter: blur(12px);
  font-size: 11.5px;
  color: var(--muted);
}

.mini-pill-dock strong {
  color: var(--text);
  font-family: var(--font-mono);
}

/* SVG 连线与巡逻猫咪动画层 */
.mini-wires-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 2;
}

.wire-path-bg {
  fill: none;
  stroke: var(--line-2);
  stroke-width: 2;
}

.wire-path-active {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2.2;
  stroke-dasharray: 6 6;
  animation: flowDash 1.4s linear infinite;
}

@keyframes flowDash {
  to { stroke-dashoffset: -24; }
}

.patrol-cat-badge {
  position: absolute;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  overflow: hidden;
  border: 1.5px solid var(--accent);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  z-index: 4;
  pointer-events: none;
  transform: translate(-50%, -50%);
  background: var(--card);
}

.patrol-cat-badge img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 可拖拽真实节点卡片 */
.canvas-node {
  position: absolute;
  z-index: 5;
  width: 224px;
  border-radius: 15px;
  background: var(--panel);
  border: 1px solid var(--line-2);
  box-shadow: var(--surface-rim), 0 14px 36px var(--shadow);
  backdrop-filter: blur(16px);
  padding: 10px;
  cursor: grab;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.canvas-node:active {
  cursor: grabbing;
}

.canvas-node.is-selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft), 0 18px 42px var(--shadow);
}

.canvas-node.is-agent-target {
  border-color: var(--accent-bright);
  box-shadow: 0 0 0 3px var(--accent-glow), 0 18px 44px var(--shadow);
}

.node-port {
  position: absolute;
  top: 50%;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--card);
  border: 2px solid var(--accent);
  transform: translateY(-50%);
}

.node-port.in { left: -6px; }
.node-port.out { right: -6px; }

.node-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 11px;
  font-weight: 700;
  color: var(--muted);
}

.node-type-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--text);
}

.node-type-tag svg {
  width: 13px;
  height: 13px;
  color: var(--accent);
}

.node-badge-pill {
  padding: 2px 7px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 10px;
}

.node-preview-art {
  width: 100%;
  height: 124px;
  border-radius: 10px;
  border: 1px solid var(--line);
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--code-bg);
}

.node-preview-art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: filter 0.25s ease, transform 0.25s ease;
}

.node-art-overlay {
  position: absolute;
  left: 7px;
  bottom: 7px;
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(12, 15, 20, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  color: #e6eaf2;
}

.art-generated[data-variant="0"] img { filter: none; }
.art-generated[data-variant="1"] img { filter: hue-rotate(38deg) saturate(1.15) contrast(1.06); }
.art-generated[data-variant="2"] img { filter: hue-rotate(140deg) saturate(1.2) brightness(0.96); }
.art-generated[data-variant="3"] img { filter: sepia(0.22) hue-rotate(-18deg) saturate(1.25) brightness(1.04); }

.node-prompt-box {
  padding: 9px 10px;
  border-radius: 10px;
  background: var(--soft);
  border: 1px solid var(--line);
  font-size: 11.5px;
  line-height: 1.5;
  color: var(--text);
}

.node-meta-row {
  margin-top: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  font-size: 10.5px;
  color: var(--muted);
}

.candidate-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 5px;
  margin-top: 8px;
}

.cand-thumb {
  height: 36px;
  border-radius: 7px;
  border: 1.5px solid var(--line);
  overflow: hidden;
  padding: 0;
  position: relative;
  transition: transform 0.12s ease, border-color 0.15s ease;
}

.cand-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.cand-thumb span {
  position: absolute;
  right: 3px;
  bottom: 2px;
  padding: 0 4px;
  border-radius: 4px;
  background: rgba(12, 15, 20, 0.78);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
}

.cand-thumb:hover {
  transform: translateY(-1px);
}

.cand-thumb.active {
  border-color: var(--accent-bright);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

.cand-thumb[data-cand="1"] img { filter: hue-rotate(38deg) saturate(1.15); }
.cand-thumb[data-cand="2"] img { filter: hue-rotate(140deg) saturate(1.2); }
.cand-thumb[data-cand="3"] img { filter: sepia(0.22) hue-rotate(-18deg) saturate(1.25); }

/* 右侧复刻版 Agent 助手面板 */
.mini-agent-panel {
  border-left: 1px solid var(--line);
  background: var(--card);
  display: flex;
  flex-direction: column;
  height: 540px;
}

.agent-panel-head {
  height: 48px;
  padding: 0 14px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.agent-brand-left {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
}

.agent-spark-icon {
  width: 24px;
  height: 24px;
  border-radius: 7px;
  background: var(--accent-soft);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.agent-conn-status {
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.agent-conn-status::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-bright);
}

.agent-options-bar {
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 6px;
  background: var(--soft);
}

.agent-select-chip {
  height: 28px;
  padding: 0 9px;
  border-radius: 7px;
  background: var(--card);
  border: 1px solid var(--line);
  font-size: 11px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
}

.agent-chat-log {
  flex: 1;
  padding: 12px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.chat-msg {
  padding: 10px 12px;
  border-radius: 12px;
  font-size: 12px;
  line-height: 1.55;
}

.chat-msg.user {
  align-self: flex-end;
  max-width: 88%;
  background: var(--accent-btn-bg);
  color: var(--accent-text);
  border: 1px solid var(--accent-btn-border);
}

.chat-msg.assistant {
  background: var(--soft);
  border: 1px solid var(--line);
  color: var(--text);
}

.tool-call-trace {
  display: flex;
  flex-direction: column;
  gap: 5px;
  margin-bottom: 8px;
}

.tool-trace-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  padding: 5px 8px;
  border-radius: 7px;
  background: var(--card);
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--muted);
}

.tool-trace-item .ok {
  color: var(--accent);
  font-weight: 700;
}

.agent-prompt-presets {
  padding: 10px 12px;
  border-top: 1px solid var(--line);
  background: var(--soft);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.presets-label {
  font-size: 10.5px;
  font-weight: 700;
  color: var(--muted);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.preset-btn-list {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.preset-trigger {
  width: 100%;
  text-align: left;
  padding: 7px 10px;
  border-radius: 9px;
  background: var(--card);
  border: 1px solid var(--line);
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.preset-trigger:hover,
.preset-trigger.active {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.preset-trigger span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.preset-trigger svg {
  width: 13px;
  height: 13px;
  color: var(--accent);
}

/* Section 通用排版 */
.section-block {
  padding: 84px 0 28px;
}

.section-header {
  max-width: 720px;
  margin-bottom: 36px;
}

.section-header.centered {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 4px 11px;
  border-radius: 999px;
  background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 26%, transparent);
  color: var(--accent);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 14px;
}

.section-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.025em;
}

.section-desc {
  margin: 0;
  font-size: 15.5px;
  color: var(--muted);
  line-height: 1.7;
}

/* 重点王牌区块：Local Codex Agent & MCP */
.codex-flagship-card {
  border-radius: var(--radius-xl);
  border: 1px solid var(--line-2);
  background: var(--panel);
  box-shadow: var(--surface-rim), var(--shadow-lg);
  backdrop-filter: blur(18px);
  padding: 28px;
  position: relative;
  overflow: hidden;
}

.codex-flagship-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-bright), transparent);
  opacity: 0.7;
}

.segmented-tabs {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 4px;
  border-radius: 12px;
  background: var(--seg-track);
  border: 1px solid var(--line);
  margin-bottom: 24px;
}

.seg-tab {
  height: 36px;
  padding: 0 14px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: all 0.16s ease;
}

.seg-tab:hover {
  color: var(--text);
}

.seg-tab.active {
  background: var(--seg-active);
  color: var(--seg-active-text);
  box-shadow: var(--seg-active-shadow);
}

.seg-tab svg {
  width: 15px;
  height: 15px;
  color: var(--accent);
}

.codex-grid {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 24px;
  align-items: stretch;
}

.arch-panel {
  border-radius: 16px;
  background: var(--soft);
  border: 1px solid var(--line);
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 18px;
}

.arch-flow-diagram {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: 10px;
}

.arch-node {
  padding: 14px 12px;
  border-radius: 13px;
  background: var(--card);
  border: 1px solid var(--line-2);
  box-shadow: var(--surface-rim);
  text-align: center;
}

.arch-node-badge {
  display: inline-block;
  padding: 2px 7px;
  border-radius: 6px;
  background: var(--accent-soft);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  margin-bottom: 6px;
}

.arch-node h4 {
  margin: 0 0 4px;
  font-size: 13px;
  font-weight: 700;
}

.arch-node p {
  margin: 0;
  font-size: 11px;
  color: var(--muted);
  line-height: 1.45;
}

.arch-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
}

.code-terminal {
  border-radius: 13px;
  background: var(--code-bg);
  border: 1px solid var(--line);
  overflow: hidden;
}

.code-term-head {
  height: 38px;
  padding: 0 12px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--muted);
}

.copy-btn {
  height: 26px;
  padding: 0 10px;
  border-radius: 7px;
  background: var(--soft-2);
  border: 1px solid var(--line-2);
  color: var(--text);
  font-size: 11px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.copy-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.code-term-body {
  padding: 14px 16px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.65;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
}

.guardrails-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.guardrail-item {
  padding: 16px 18px;
  border-radius: 14px;
  background: var(--soft);
  border: 1px solid var(--line);
  display: flex;
  gap: 14px;
  align-items: flex-start;
  transition: border-color 0.18s ease, transform 0.15s ease;
}

.guardrail-item:hover {
  border-color: var(--line-2);
  transform: translateY(-1px);
}

.guardrail-icon {
  width: 36px;
  height: 36px;
  flex: none;
  border-radius: 10px;
  background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 26%, transparent);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.guardrail-icon svg {
  width: 18px;
  height: 18px;
}

.guardrail-item h4 {
  margin: 0 0 4px;
  font-size: 14px;
  font-weight: 700;
}

.guardrail-item p {
  margin: 0;
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.6;
}

/* MCP 工具矩阵与思考强度交互条 */
.mcp-explorer-bar {
  margin-top: 24px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.mcp-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 14px;
}

.mcp-top-row h3 {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.filter-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.filter-pill {
  height: 30px;
  padding: 0 11px;
  border-radius: 999px;
  background: var(--soft);
  border: 1px solid var(--line);
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  transition: all 0.15s ease;
}

.filter-pill:hover {
  color: var(--text);
  border-color: var(--line-2);
}

.filter-pill.active {
  background: var(--accent-soft);
  border-color: color-mix(in srgb, var(--accent) 45%, transparent);
  color: var(--accent);
}

.mcp-tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(235px, 1fr));
  gap: 10px;
}

.mcp-tool-card {
  padding: 12px 13px;
  border-radius: 12px;
  background: var(--soft);
  border: 1px solid var(--line);
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.mcp-tool-card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.mcp-tool-card code {
  display: block;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
}

.mcp-tool-card span {
  display: block;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.45;
}

/* Bento 能力矩阵 */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
}

.bento-card {
  border-radius: var(--radius-lg);
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--surface-rim), 0 12px 32px var(--shadow);
  backdrop-filter: blur(14px);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.bento-card:hover {
  border-color: var(--line-2);
  transform: translateY(-2px);
}

.bento-span-7 { grid-column: span 7; }
.bento-span-5 { grid-column: span 5; }
.bento-span-4 { grid-column: span 4; }
.bento-span-6 { grid-column: span 6; }

.bento-icon {
  width: 38px;
  height: 38px;
  border-radius: 11px;
  background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 26%, transparent);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.bento-card h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.bento-card p {
  margin: 0;
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.65;
}

.bento-visual {
  border-radius: 13px;
  background: var(--soft);
  border: 1px solid var(--line);
  padding: 14px;
}

.snap-demo-box {
  position: relative;
  height: 112px;
  overflow: hidden;
}

.snap-guide-v {
  position: absolute;
  left: 50%;
  top: 8px;
  bottom: 8px;
  border-left: 1px dashed var(--snap-guide);
}

.snap-guide-h {
  position: absolute;
  top: 50%;
  left: 16px;
  right: 16px;
  border-top: 1px dashed var(--snap-guide);
}

.snap-box {
  position: absolute;
  padding: 8px 12px;
  border-radius: 9px;
  background: var(--card);
  border: 1px solid var(--line-2);
  font-size: 11px;
  font-weight: 600;
  box-shadow: 0 6px 16px var(--shadow);
}

.snap-box-a { left: 16%; top: 18px; }
.snap-box-b { right: 16%; bottom: 18px; border-color: var(--accent); }

.loop-preview-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}

.loop-chip {
  padding: 5px 10px;
  border-radius: 8px;
  background: var(--card);
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
}

.loop-chip.active {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

/* 模型矩阵区 */
.models-showcase {
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--surface-rim), 0 16px 44px var(--shadow);
  padding: 26px;
}

.models-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 18px;
}

.model-chip {
  padding: 7px 12px;
  border-radius: 10px;
  background: var(--soft);
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: border-color 0.15s ease, transform 0.12s ease;
}

.model-chip:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.model-chip .kind-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}

.model-chip[data-kind="video"] .kind-dot {
  background: #60a5fa;
}

/* 内嵌媒体工坊交互演示 */
.studio-card {
  border-radius: var(--radius-xl);
  border: 1px solid var(--line-2);
  background: var(--panel);
  box-shadow: var(--surface-rim), var(--shadow-lg);
  overflow: hidden;
}

.studio-topbar {
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  background: var(--soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.studio-stage {
  padding: 28px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
  align-items: center;
  min-height: 360px;
}

.studio-preview-box {
  height: 300px;
  border-radius: 16px;
  border: 1px solid var(--line-2);
  background: var(--code-bg);
  position: relative;
  overflow: hidden;
  user-select: none;
}

/* Compare 对比原图交互 */
.compare-base, .compare-top {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.compare-base img, .compare-top img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.compare-top {
  clip-path: inset(0 50% 0 0);
}

.compare-tag {
  position: absolute;
  top: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(12, 15, 20, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(8px);
  color: #f0f7f4;
  font-size: 11px;
  font-weight: 600;
  z-index: 4;
}

.compare-tag.left { left: 12px; }
.compare-tag.right { right: 12px; border-color: rgba(114, 198, 178, 0.45); color: #84d6c2; }

.compare-divider {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  background: #ffffff;
  box-shadow: 0 0 12px rgba(0, 0, 0, 0.5);
  cursor: ew-resize;
  z-index: 5;
}

.compare-handle-knob {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--accent-btn-bg);
  border: 2px solid #fff;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.45);
}

.compare-range {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: ew-resize;
  z-index: 6;
  margin: 0;
}

/* Grid Split 宫格切分交互 */
.grid-split-stage {
  position: relative;
  width: 100%;
  height: 100%;
}

.grid-split-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.72;
}

.grid-split-canvas {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 100%;
  padding: 16px;
  display: grid;
  gap: 8px;
}

.grid-split-cell {
  border-radius: 8px;
  border: 1.5px dashed rgba(132, 214, 194, 0.78);
  background: rgba(12, 15, 20, 0.22);
  backdrop-filter: blur(1px);
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  padding: 6px 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: #f0f7f4;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.7);
}

/* 360 全景交互 */
.pano-canvas {
  width: 100%;
  height: 100%;
  position: relative;
  cursor: grab;
  background-image: url('./assets/studio-panorama.jpg');
  background-repeat: repeat-x;
  background-size: auto 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pano-canvas:active {
  cursor: grabbing;
}

.pano-reticle {
  width: 68%;
  height: 62%;
  border: 2px solid var(--accent-bright);
  border-radius: 10px;
  box-shadow: 0 0 0 999px rgba(10, 12, 17, 0.42);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding: 8px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: #fff;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.85);
}

.mask-pin {
  position: absolute;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent-btn-bg);
  border: 2px solid #fff;
  color: #fff;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

.studio-controls-info h3 {
  margin: 0 0 10px;
  font-size: 20px;
  font-weight: 700;
}

.studio-controls-info p {
  margin: 0 0 16px;
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.7;
}

.studio-feature-bullets {
  list-style: none;
  padding: 0;
  margin: 0 0 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.studio-feature-bullets li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text);
}

.studio-feature-bullets li svg {
  width: 15px;
  height: 15px;
  color: var(--accent);
  flex: none;
}

/* 部署双形态对比 */
.deploy-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.deploy-card {
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--surface-rim), 0 14px 36px var(--shadow);
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.deploy-card.featured {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--line));
}

.deploy-steps {
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.deploy-steps li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: var(--muted);
}

.step-num {
  width: 22px;
  height: 22px;
  border-radius: 7px;
  background: var(--accent-soft);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
}

/* 底部 CTA 与 Footer */
.cta-banner {
  margin-top: 64px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--line-2);
  background: radial-gradient(circle at 50% 0%, var(--accent-soft), transparent 65%), var(--panel);
  box-shadow: var(--surface-rim), var(--shadow-lg);
  padding: 46px 28px;
  text-align: center;
}

.cta-banner h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
}

.cta-banner p {
  margin: 0 auto 24px;
  max-width: 580px;
  color: var(--muted);
  font-size: 14.5px;
}

.site-footer {
  margin-top: 72px;
  border-top: 1px solid var(--line);
  padding: 32px 0 44px;
  font-size: 12.5px;
  color: var(--muted);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.bento-span-12 { grid-column: span 12; }

/* 智能流光聚焦动效（Linear / Raycast 级鼠标光斑） */
[data-spotlight] {
  position: relative;
}

[data-spotlight]::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0;
  background: radial-gradient(380px circle at var(--mx, 50%) var(--my, 50%), var(--accent-soft), transparent 68%);
  transition: opacity 0.25s ease;
}

[data-spotlight]:hover::after {
  opacity: 1;
}

/* Agent 实时思考态与底部自由对话输入条 */
.agent-thinking-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 9px;
  background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
}

.thinking-dots {
  display: inline-flex;
  gap: 3px;
}

.thinking-dots i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent-bright);
  display: block;
  animation: thinkBounce 1s infinite ease-in-out;
}

.thinking-dots i:nth-child(2) { animation-delay: 0.16s; }
.thinking-dots i:nth-child(3) { animation-delay: 0.32s; }

@keyframes thinkBounce {
  0%, 80%, 100% { opacity: 0.35; transform: scale(0.85); }
  40% { opacity: 1; transform: scale(1.15); }
}

.agent-live-composer {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 5px 5px 10px;
  border-radius: 10px;
  background: var(--card);
  border: 1px solid var(--line-2);
  margin-top: 2px;
}

.agent-live-composer:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

.agent-live-composer input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: none;
  background: transparent;
  color: var(--text);
  font-size: 11.5px;
}

.agent-live-composer input::placeholder {
  color: var(--faint);
}

.agent-send-mini {
  width: 26px;
  height: 26px;
  border-radius: 7px;
  background: var(--accent-btn-bg);
  border: 1px solid var(--accent-btn-border);
  color: var(--accent-text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  transition: transform 0.12s ease;
}

.agent-send-mini:hover {
  transform: translateY(-1px);
}

/* 高清放大节点交互展示 */
.upscale-spec-box {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.upscale-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}

.upscale-tier-group {
  display: inline-flex;
  gap: 4px;
  padding: 3px;
  border-radius: 9px;
  background: var(--seg-track);
  border: 1px solid var(--line);
}

.upscale-tier-btn {
  padding: 4px 10px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--muted);
  transition: all 0.15s ease;
}

.upscale-tier-btn.active {
  background: var(--accent-btn-bg);
  color: var(--accent-text);
  box-shadow: var(--accent-btn-shadow);
}

.upscale-metrics-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.upscale-metric {
  padding: 8px 10px;
  border-radius: 9px;
  background: var(--card);
  border: 1px solid var(--line);
}

.upscale-metric small {
  display: block;
  font-size: 10px;
  color: var(--muted);
}

.upscale-metric strong {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--accent);
}

/* 不显眼的联系方式链接与微信二维码弹窗 */
.footer-contact-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--faint);
  font-size: 11.5px;
  transition: color 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}

.footer-contact-link:hover {
  color: var(--text);
  border-color: var(--line-2);
  background: var(--soft);
}

.cta-subtle-note {
  margin: 14px 0 0;
  font-size: 12px;
  color: var(--faint);
}

.inline-contact-link {
  color: var(--muted);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-size: 12px;
  padding: 0 2px;
  transition: color 0.15s ease;
}

.inline-contact-link:hover {
  color: var(--accent);
}

.contact-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 260;
  background: rgba(8, 11, 16, 0.72);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.contact-modal-backdrop[hidden] {
  display: none;
}

.contact-modal-card {
  width: min(356px, 100%);
  border-radius: 20px;
  background: var(--panel-solid);
  border: 1px solid var(--line-2);
  box-shadow: var(--surface-rim), var(--shadow-lg);
  padding: 22px;
  text-align: center;
  position: relative;
}

.contact-modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--soft);
  border: 1px solid var(--line);
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.contact-modal-close:hover {
  color: var(--text);
  border-color: var(--line-2);
}

.contact-qr-frame {
  width: 210px;
  height: 210px;
  margin: 14px auto 12px;
  padding: 10px;
  border-radius: 14px;
  background: #ffffff;
  border: 1px solid var(--line);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.22);
}

.contact-qr-frame img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  border-radius: 6px;
}

.footer-links a:hover {
  color: var(--accent);
}

/* Toast */
.promo-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  padding: 9px 16px;
  border-radius: 999px;
  background: var(--card);
  border: 1px solid var(--accent);
  color: var(--text);
  font-size: 12.5px;
  font-weight: 600;
  box-shadow: 0 12px 32px var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 200;
}

.promo-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Scroll Reveal */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1024px) {
  .stage-workspace {
    grid-template-columns: 1fr;
  }
  .mini-agent-panel {
    border-left: 0;
    border-top: 1px solid var(--line);
    height: auto;
    min-height: 360px;
  }
  .codex-grid,
  .studio-stage,
  .deploy-grid {
    grid-template-columns: 1fr;
  }
  .bento-span-7, .bento-span-5, .bento-span-4, .bento-span-6 {
    grid-column: span 12;
  }
}

@media (max-width: 720px) {
  .nav-links {
    display: none;
  }
  .arch-flow-diagram {
    grid-template-columns: 1fr;
  }
  .arch-arrow {
    transform: rotate(90deg);
    margin: 4px 0;
  }
  .mini-canvas-viewport {
    min-height: 460px;
  }
  .stage-window-hint {
    display: none;
  }
}

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