/* ============================================================
   潮玩造色工坊 · 全局样式（移动端优先 · 6 套主题 × 浅/深双模式）
   每套主题（甜酷莓果/海盐苏打/蜜瓜奶冻/葡萄汽水/焦糖可可/电光青柠）
   都有浅色（默认，清爽）与深色（创作向）两档：
   <body data-theme="族名" data-mode="light|dark">，见 js/theme.js
   ============================================================ */
:root {
  --radius: 16px;
  --danger: #ef4444;
  --safe-b: env(safe-area-inset-bottom, 0px); /* iPhone 底部安全区 */
}

/* ---------- 模式中性层（分段器凹槽/轨道/描边随模式走） ---------- */
:root, [data-mode="light"] {
  --seg: #eceef2;                     /* 分段器凹槽（浅） */
  --track: rgba(0, 0, 0, .1);         /* 进度条轨道 */
  --hairline: rgba(0, 0, 0, .16);     /* 虚线/色板描边 */
}
[data-mode="dark"] {
  --seg: rgba(0, 0, 0, .28);
  --track: rgba(255, 255, 255, .12);
  --hairline: rgba(255, 255, 255, .2);
}

/* ============ ① 甜酷莓果 · 浅色（默认） ============ */
[data-theme="berry"] {
  --bg-a: #ffffff; --bg-b: #fdf2f6; --bg-rgb: 255, 255, 255;
  --panel: #ffffff; --panel-rgb: 255, 255, 255;
  --text: #2a2130; --text-dim: #8f8494;
  --accent: #f26892; --on-accent: #1f1a24;
  --deep: #c25375; --secondary: #f58ead; --done: #c25375;
  --accent-soft: rgba(242, 104, 146, .14);
  --tint: rgba(242, 104, 146, .28);
  --glow-a: #ffd9e3; --glow-b: #ffedf2;
  --panel-border: rgba(0, 0, 0, .08);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, .07);
}
/* ① 甜酷莓果 · 深色 */
[data-theme="berry"][data-mode="dark"] {
  --bg-a: #1f1a24; --bg-b: #2a2331; --bg-rgb: 31, 26, 36;
  --panel: #352c3f; --panel-rgb: 53, 44, 63;
  --text: #e8e2ef; --text-dim: #9a93a6;
  --accent: #f26892; --on-accent: #1f1a24;
  --deep: #f26892; --secondary: #f58ead; --done: #f58ead;
  --accent-soft: rgba(242, 104, 146, .16);
  --tint: rgba(242, 104, 146, .3);
  --glow-a: #5e3147; --glow-b: #3f2635;
  --panel-border: rgba(232, 226, 239, .11);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, .35);
}

/* ============ ② 海盐苏打 · 浅色（默认） ============ */
[data-theme="soda"] {
  --bg-a: #ffffff; --bg-b: #f0f8fc; --bg-rgb: 255, 255, 255;
  --panel: #ffffff; --panel-rgb: 255, 255, 255;
  --text: #1c2530; --text-dim: #7e8f9d;
  --accent: #58c4e8; --on-accent: #1a222b;
  --deep: #2e9cc6; --secondary: #82d3ee; --done: #2e9cc6;
  --accent-soft: rgba(88, 196, 232, .14);
  --tint: rgba(88, 196, 232, .28);
  --glow-a: #cdebfa; --glow-b: #e4f5fd;
  --panel-border: rgba(0, 0, 0, .08);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, .07);
}
/* ② 海盐苏打 · 深色 */
[data-theme="soda"][data-mode="dark"] {
  --bg-a: #1a222b; --bg-b: #242e3a; --bg-rgb: 26, 34, 43;
  --panel: #2e3b4a; --panel-rgb: 46, 59, 74;
  --text: #dce6f0; --text-dim: #8fa0b0;
  --accent: #58c4e8; --on-accent: #1a222b;
  --deep: #58c4e8; --secondary: #82d3ee; --done: #82d3ee;
  --accent-soft: rgba(88, 196, 232, .16);
  --tint: rgba(88, 196, 232, .3);
  --glow-a: #2d4b66; --glow-b: #233749;
  --panel-border: rgba(220, 230, 240, .11);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, .35);
}

/* ============ ③ 蜜瓜奶冻 · 浅色（默认） ============ */
[data-theme="melon"] {
  --bg-a: #ffffff; --bg-b: #f2fbf6; --bg-rgb: 255, 255, 255;
  --panel: #ffffff; --panel-rgb: 255, 255, 255;
  --text: #212821; --text-dim: #7d9484;
  --accent: #79d898; --on-accent: #202420;
  --deep: #269a60; --secondary: #9ae2b2; --done: #269a60;
  --accent-soft: rgba(121, 216, 152, .14);
  --tint: rgba(121, 216, 152, .28);
  --glow-a: #d2f4e0; --glow-b: #e8faf0;
  --panel-border: rgba(0, 0, 0, .08);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, .07);
}
/* ③ 蜜瓜奶冻 · 深色 */
[data-theme="melon"][data-mode="dark"] {
  --bg-a: #202420; --bg-b: #2a2f2a; --bg-rgb: 32, 36, 32;
  --panel: #343a34; --panel-rgb: 52, 58, 52;
  --text: #e1e9e1; --text-dim: #93a393;
  --accent: #79d898; --on-accent: #202420;
  --deep: #79d898; --secondary: #9ae2b2; --done: #9ae2b2;
  --accent-soft: rgba(121, 216, 152, .15);
  --tint: rgba(121, 216, 152, .3);
  --glow-a: #3b5e44; --glow-b: #2d4132;
  --panel-border: rgba(225, 233, 225, .11);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, .35);
}

/* ============ ④ 葡萄汽水 · 浅色（默认） ============ */
[data-theme="grape"] {
  --bg-a: #ffffff; --bg-b: #f7f4fe; --bg-rgb: 255, 255, 255;
  --panel: #ffffff; --panel-rgb: 255, 255, 255;
  --text: #241f33; --text-dim: #837d9b;
  --accent: #a278e8; --on-accent: #1c1a29;
  --deep: #7b4fd1; --secondary: #b99aee; --done: #7b4fd1;
  --accent-soft: rgba(162, 120, 232, .14);
  --tint: rgba(162, 120, 232, .28);
  --glow-a: #e2d6fb; --glow-b: #f1eaff;
  --panel-border: rgba(0, 0, 0, .08);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, .07);
}
/* ④ 葡萄汽水 · 深色 */
[data-theme="grape"][data-mode="dark"] {
  --bg-a: #1c1a29; --bg-b: #262336; --bg-rgb: 28, 26, 41;
  --panel: #312d44; --panel-rgb: 49, 45, 68;
  --text: #ddd9ee; --text-dim: #9a94b0;
  --accent: #a278e8; --on-accent: #1c1a29;
  --deep: #a278e8; --secondary: #b99aee; --done: #b99aee;
  --accent-soft: rgba(162, 120, 232, .16);
  --tint: rgba(162, 120, 232, .3);
  --glow-a: #453662; --glow-b: #302846;
  --panel-border: rgba(221, 217, 238, .11);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, .35);
}

/* ============ ⑤ 焦糖可可 · 浅色（默认） ============ */
[data-theme="cocoa"] {
  --bg-a: #ffffff; --bg-b: #fdf6ef; --bg-rgb: 255, 255, 255;
  --panel: #ffffff; --panel-rgb: 255, 255, 255;
  --text: #2e241f; --text-dim: #94837a;
  --accent: #e8925a; --on-accent: #261f1c;
  --deep: #be6428; --secondary: #eead83; --done: #be6428;
  --accent-soft: rgba(232, 146, 90, .14);
  --tint: rgba(232, 146, 90, .28);
  --glow-a: #faddc6; --glow-b: #fdf0e4;
  --panel-border: rgba(0, 0, 0, .08);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, .07);
}
/* ⑤ 焦糖可可 · 深色 */
[data-theme="cocoa"][data-mode="dark"] {
  --bg-a: #261f1c; --bg-b: #322925; --bg-rgb: 38, 31, 28;
  --panel: #3f342f; --panel-rgb: 63, 52, 47;
  --text: #e9dfd9; --text-dim: #a8968c;
  --accent: #e8925a; --on-accent: #261f1c;
  --deep: #e8925a; --secondary: #eead83; --done: #eead83;
  --accent-soft: rgba(232, 146, 90, .16);
  --tint: rgba(232, 146, 90, .3);
  --glow-a: #60422f; --glow-b: #433126;
  --panel-border: rgba(233, 223, 217, .11);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, .35);
}

/* ============ ⑥ 电光青柠 · 浅色（默认） ============ */
[data-theme="lime"] {
  --bg-a: #ffffff; --bg-b: #effbf7; --bg-rgb: 255, 255, 255;
  --panel: #ffffff; --panel-rgb: 255, 255, 255;
  --text: #1a2222; --text-dim: #75908c;
  --accent: #39e0b8; --on-accent: #161b1b;
  --deep: #0e9e7d; --secondary: #6ae8ca; --done: #0e9e7d;
  --accent-soft: rgba(57, 224, 184, .13);
  --tint: rgba(57, 224, 184, .26);
  --glow-a: #c8f7e9; --glow-b: #e4fcf5;
  --panel-border: rgba(0, 0, 0, .08);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, .07);
}
/* ⑥ 电光青柠 · 深色 */
[data-theme="lime"][data-mode="dark"] {
  --bg-a: #161b1b; --bg-b: #202727; --bg-rgb: 22, 27, 27;
  --panel: #2a3333; --panel-rgb: 42, 51, 51;
  --text: #d4e4e4; --text-dim: #8ca4a0;
  --accent: #39e0b8; --on-accent: #161b1b;
  --deep: #39e0b8; --secondary: #6ae8ca; --done: #6ae8ca;
  --accent-soft: rgba(57, 224, 184, .15);
  --tint: rgba(57, 224, 184, .28);
  --glow-a: #22564d; --glow-b: #1c3934;
  --panel-border: rgba(212, 228, 228, .11);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, .35);
}

* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

/* [hidden] 优先隐藏：组件类名里的 display 规则会覆盖 UA 默认的 [hidden]{display:none}，
   曾导致截图浮层/加载层全屏常驻挡住画布（回归测试抓到的 bug） */
[hidden] { display: none !important; }

html, body { height: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  /* 底色 = 各主题同色系的纵向渐变（跟随主题与浅/深模式切换） */
  background: linear-gradient(180deg, var(--bg-a) 0%, var(--bg-b) 100%);
  background-attachment: fixed; /* 移动端滚动时渐变不跟着拉长 */
  color: var(--text);
  transition: background .25s, color .25s; /* 换肤时柔和过渡 */
  -webkit-font-smoothing: antialiased;
  overscroll-behavior: none;
}

button { font-family: inherit; cursor: pointer; }

/* ---------------- 背景柔光（主题色同系） ---------------- */
.bg-glow {
  position: fixed; border-radius: 50%; filter: blur(90px); opacity: .45;
  pointer-events: none; z-index: 0;
  transition: background .25s;
}
.glow-a { width: 340px; height: 340px; background: var(--glow-a); top: -100px; left: -80px; }
.glow-b { width: 380px; height: 380px; background: var(--glow-b); bottom: -140px; right: -100px; }

/* ============================================================
   配色切换器（两页共用，js/theme.js 注入）
   ============================================================ */
.theme-btn {
  width: 38px; height: 38px; border-radius: 11px; flex-shrink: 0;
  border: 1px solid var(--panel-border); background: var(--panel); color: var(--text);
  font-size: 17px; box-shadow: var(--shadow-card);
}
.logo-row .theme-btn { margin-left: auto; } /* 首页：头部最右（右上角） */
.theme-pop {
  position: fixed; z-index: 70; right: 14px;
  top: calc(64px + env(safe-area-inset-top, 0px));
  background: var(--panel); border: 1px solid var(--panel-border); border-radius: 14px;
  box-shadow: 0 12px 36px rgba(0, 0, 0, .35); padding: 8px;
  display: grid; grid-template-columns: repeat(2, minmax(112px, 1fr)); gap: 4px;
}
/* 弹层顶部：浅/深模式档位 */
.theme-mode-row {
  grid-column: 1 / -1; display: flex; gap: 3px;
  background: var(--seg); border-radius: 10px; padding: 3px; margin-bottom: 4px;
}
.theme-mode-row button {
  flex: 1; justify-content: center; padding: 7px 0; font-size: 12.5px;
  color: var(--text-dim);
}
.theme-mode-row button.active { background: var(--panel); color: var(--text); font-weight: 700; box-shadow: 0 1px 4px rgba(0, 0, 0, .12); }
.theme-pop button {
  display: flex; align-items: center; gap: 8px; border: 0; background: transparent;
  padding: 9px 10px; border-radius: 10px; font-size: 13px; color: var(--text);
}
.theme-pop button.active { background: var(--accent-soft); color: var(--accent); font-weight: 700; }
.theme-dot {
  width: 16px; height: 16px; border-radius: 50%; flex-shrink: 0;
  border: 1.5px solid rgba(0, 0, 0, .15);
}
[data-mode="dark"] .theme-dot { border-color: rgba(255, 255, 255, .25); }

/* ============================================================
   首页
   ============================================================ */
.page-home .home-wrap {
  position: relative; z-index: 1;
  max-width: 560px; margin: 0 auto;
  padding: calc(18px + env(safe-area-inset-top, 0px)) 18px calc(24px + var(--safe-b));
  min-height: 100%; display: flex; flex-direction: column;
}

.home-header { padding: 10px 2px 18px; }
.logo-row { display: flex; align-items: center; gap: 14px; }
.logo-mark {
  width: 52px; height: 52px; border-radius: 15px; background: var(--accent);
  display: grid; place-items: center; font-size: 26px; font-weight: 700; color: var(--on-accent);
  box-shadow: 0 6px 18px var(--tint);
}
.home-header h1 { font-size: 22px; letter-spacing: 1px; }
.slogan { font-size: 12.5px; color: var(--text-dim); margin-top:  3px; }

/* ----- Tab 切换 ----- */
.tab-bar {
  position: relative; display: flex; background: var(--panel);
  border: 1px solid var(--panel-border); border-radius: 14px; padding: 4px; margin-bottom: 16px;
  box-shadow: var(--shadow-card);
}
.tab-btn {
  flex: 1; position: relative; z-index: 1; border: 0; background: transparent;
  color: var(--text-dim); font-size: 15px; font-weight: 600;
  padding: 11px 0; border-radius: 11px; transition: color .25s;
}
.tab-btn.active { color: var(--on-accent); }
.tab-ico { margin-right: 4px; }
.tab-slider {
  position: absolute; z-index: 0; top: 4px; bottom: 4px; left: 4px;
  width: calc(50% - 4px); border-radius: 11px; background: var(--accent);
  box-shadow: 0 3px 10px var(--tint);
  transition: transform .28s cubic-bezier(.4, .9, .3, 1), background .25s;
}
.tab-bar[data-active="image"] .tab-slider { transform: translateX(100%); }

/* ----- Tab 面板 ----- */
.tab-panel { display: none; animation: fadeIn .3s ease; }
.tab-panel.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

textarea {
  width: 100%; min-height: 108px; resize: vertical;
  background: var(--panel); border: 1px solid var(--panel-border); border-radius: var(--radius);
  color: var(--text); font-size: 15px; line-height: 1.6; padding: 14px;
  box-shadow: var(--shadow-card);
  outline: none; transition: border-color .2s, box-shadow .2s;
}
textarea:focus { border-color: var(--accent); box-shadow: 0 4px 20px var(--tint); }
textarea::placeholder { color: var(--text-dim); }

.chip-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0 16px; }
.chip {
  border: 1px solid var(--panel-border); background: var(--panel); color: var(--text-dim);
  font-size: 12.5px; padding: 7px 12px; border-radius:  999px; transition: all .2s;
  box-shadow: var(--shadow-card);
}
.chip:active { border-color: var(--accent); color: var(--deep); background: var(--accent-soft); }

/* ----- 上传区 ----- */
.upload-area {
  border: 1.5px dashed var(--hairline); border-radius: var(--radius);
  background: var(--panel); min-height: 200px; display: grid; place-items: center;
  overflow: hidden; position: relative; box-shadow: var(--shadow-card);
}
.upload-area.has-img { border-style: solid; border-color: var(--accent); }
.upload-placeholder { text-align: center; color: var(--text-dim); padding: 20px; }
.upload-ico { font-size: 40px; margin-bottom: 8px; }
.upload-placeholder p { font-size: 13.5px; }
.preview-img { width: 100%; max-height: 300px; object-fit: contain; display: block; }

.upload-btns { display: flex; gap: 10px; margin-top: 12px; }
.btn-ghost {
  flex: 1; padding: 12px 0; border-radius: 12px; font-size: 14.5px; font-weight: 600;
  background: var(--panel); border: 1px solid var(--panel-border); color: var(--text);
  box-shadow: var(--shadow-card);
}
.btn-ghost:active { border-color: var(--accent); color: var(--deep); }
.tips { font-size: 12px; color: var(--text-dim); margin: 10px 2px 14px; line-height: 1.5; }

/* ----- 主按钮（高亮色平涂 + 深字） ----- */
.btn-primary {
  width: 100%; border: 0; border-radius: 14px; padding: 15px 0;
  background: var(--accent); color: var(--on-accent); font-size: 16.5px; font-weight: 700;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  box-shadow: 0 8px 24px var(--tint); transition: transform .15s, opacity .2s, background .25s;
}
.btn-primary:active { transform: scale(.98); }
.btn-primary:disabled { opacity: .4; box-shadow: none; }
.btn-arrow { transition: transform .2s; }
.btn-primary:not(:disabled):active .btn-arrow { transform: translateX(4px); }

/* ----- 底部：快速出模开关 + 演示入口 ----- */
.home-footer { margin-top: auto; padding-top: 26px; text-align: center; }
.home-footer p { font-size: 12.5px; color: var(--text-dim); }
.demo-link { display: inline-block; margin-top: 6px; color: var(--deep); font-size: 13.5px; text-decoration: none; font-weight: 600; }
.check-row {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  margin-bottom: 14px; cursor: pointer;
  font-size: 12.5px; color: var(--text-dim);
}
.check-row input { width: 17px; height: 17px; accent-color: var(--accent); flex-shrink: 0; }
/* 等待弹层的真实时长提示 */
.wait-hint {
  font-size: 12px; color: var(--text-dim); line-height: 1.6;
  margin: 10px 0 0; padding: 8px 10px;
  background: var(--accent-soft); border-radius: 10px;
}

/* ============================================================
   我的作品（首页画廊：缩略图 / 继续喷绘 / 下载 / 删除）
   ============================================================ */
.works { margin-top: 26px; }
.works-title { font-size: 15px; font-weight: 700; color: var(--text); margin-bottom: 10px; }
.works-sub { font-size: 11.5px; font-weight: 400; color: var(--text-dim); margin-left: 6px; }
.works-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px;
}
.work-card {
  background: var(--panel); border: 1px solid var(--panel-border);
  border-radius: 12px; overflow: hidden; box-shadow: var(--shadow-card);
}
.work-link { display: block; text-decoration: none; color: var(--text); }
.work-thumb { width: 100%; aspect-ratio: 1; object-fit: cover; display: block; background: var(--seg); }
.work-name {
  font-size: 12px; padding: 7px 8px 8px; margin: 0;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.work-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 6px 6px;
}
.work-dl {
  font-size: 11.5px; font-weight: 600; color: var(--deep); text-decoration: none;
  padding: 4px 8px; border-radius: 8px; background: var(--accent-soft);
}
.work-del {
  border: 0; background: transparent; font-size: 14px;
  color: var(--text-dim); padding: 4px 6px; cursor: pointer;
}
/* 广场卡片「存我」按钮 */
.work-fork {
  border: 0; background: var(--accent); color: var(--on-accent);
  font-size: 11.5px; font-weight: 700; padding: 4px 9px; border-radius: 8px;
}
.work-fork:disabled { background: var(--seg); color: var(--text-dim); }

/* ============================================================
   作品广场 · 社区作品流（liblib 布局参考：瀑布流卡片 + 筛选 tab）
   ============================================================ */
.plaza-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 10px;
}
.plaza-tabs { display: flex; gap: 4px; background: var(--seg); border-radius: 999px; padding: 3px; }
.plaza-tab {
  border: 0; background: transparent; color: var(--text-dim);
  font-size: 12px; font-weight: 600; padding: 5px 12px; border-radius: 999px;
}
.plaza-tab.active { background: var(--panel); color: var(--text); box-shadow: 0 1px 4px rgba(0, 0, 0, .12); }
/* 瀑布流：CSS 多列，卡片不跨列断开 */
.plaza-masonry { columns: 2; column-gap: 10px; }
.plaza-masonry .work-card {
  break-inside: avoid; margin-bottom: 10px;
  background: var(--panel); border: 1px solid var(--panel-border);
  border-radius: 12px; overflow: hidden; box-shadow: var(--shadow-card);
}
.work-cover { display: block; }
.plaza-masonry .work-thumb {
  width: 100%; aspect-ratio: 4 / 5; object-fit: cover;
  display: block; background: var(--seg);
}
.plaza-masonry .work-name {
  font-size: 12.5px; font-weight: 600; color: var(--text);
  padding: 8px 9px 2px; margin: 0;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
/* 作者行：头像点 + 昵称（liblib 式署名） */
.work-author {
  display: flex; align-items: center; gap: 5px;
  padding: 2px 9px 6px; margin: 0;
  font-size: 11px; color: var(--text-dim);
}
.work-avatar {
  width: 16px; height: 16px; border-radius: 50%; flex-shrink: 0;
  background: var(--accent-soft); color: var(--deep);
  display: grid; place-items: center; font-size: 9px; font-weight: 700;
}
.work-author span:last-child { max-width: 90px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.plaza-empty {
  font-size: 12.5px; color: var(--text-dim); text-align: center;
  padding: 22px 14px; line-height: 1.7;
  background: var(--accent-soft); border-radius: 12px;
}

/* ============================================================
   帮助中心（首页底部入口 → 弹层：模型规格表 / 涂装速览 / 导出 / FAQ）
   ============================================================ */
.help-sheet { max-height: 82vh; overflow-y: auto; }
.help-link {
  display: block; margin: 10px auto 0; background: none; border: 0;
  color: var(--text-dim); font-size: 12.5px; text-decoration: underline;
}
.help-sec { margin-bottom: 14px; }
.help-h { font-size: 13.5px; font-weight: 700; color: var(--text); margin: 0 0 8px; }
.help-table {
  width: 100%; border-collapse: collapse; font-size: 12px;
  background: var(--accent-soft); border-radius: 10px; overflow: hidden;
}
.help-table th, .help-table td {
  padding: 7px 8px; text-align: left; color: var(--text-dim);
  border-bottom: 1px solid var(--panel-border);
}
.help-table th { color: var(--text); font-size: 11.5px; }
.help-table tr:last-child td { border-bottom: 0; }
.help-table td.on, .help-table th.on { color: var(--deep); font-weight: 700; background: rgba(0, 0, 0, .03); }
.help-note { font-size: 11px; color: var(--text-dim); margin-top: 6px; line-height: 1.6; }
.help-row { font-size: 12.5px; color: var(--text-dim); margin: 0 0 5px; line-height: 1.65; }
.help-row b { color: var(--text); font-weight: 600; }
/* 广场卡片「存我」按钮 */
.work-fork {
  border: 0; background: var(--accent); color: var(--on-accent);
  font-size: 11.5px; font-weight: 700; padding: 4px 9px; border-radius: 8px;
}
.work-fork:disabled { background: var(--seg); color: var(--text-dim); }

/* ---- 用户徽标（头部右侧 → 个人中心） ---- */
.logo-row .user-chip {
  margin-left: auto; display: flex; align-items: center; gap: 6px;
  border: 1px solid var(--panel-border); background: var(--panel);
  padding: 4px 10px 4px 4px; border-radius: 999px; flex-shrink: 0;
  box-shadow: var(--shadow-card);
}
.logo-row .theme-btn { margin-left: 0; } /* 有徽标时主题按钮不再推到最右 */
.user-avatar {
  width: 26px; height: 26px; border-radius: 50%; flex-shrink: 0;
  background: var(--accent); color: var(--on-accent);
  display: grid; place-items: center; font-size: 13px; font-weight: 700;
}
.user-name { font-size: 12px; color: var(--text); max-width: 72px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---- 个人中心弹层 ---- */
.me-nick { font-size: 16px; font-weight: 700; color: var(--text); padding: 0 6px 2px; }
.me-sub { font-size: 12px; color: var(--text-dim); padding: 0 6px 8px; }
.me-loading { font-size: 12.5px; color: var(--text-dim); text-align: center; padding: 14px 0; }
.my-works { max-height: 46vh; overflow-y: auto; display: flex; flex-direction: column; gap: 6px; padding-bottom: 6px; }
.my-row {
  display: flex; align-items: center; gap: 8px;
  background: var(--accent-soft); border-radius: 10px; padding: 9px 10px;
}
.my-open {
  flex: 1; min-width: 0; font-size: 13px; font-weight: 600; color: var(--text);
  text-decoration: none; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.my-share {
  display: flex; align-items: center; gap: 4px; flex-shrink: 0;
  font-size: 11.5px; color: var(--text-dim);
}
.my-share input { width: 15px; height: 15px; accent-color: var(--accent); }
/* 导出面板里的分享开关行 */
.sheet-check { justify-content: flex-start; margin: 2px 2px 8px; }

/* ============================================================
   生成等待遮罩
   ============================================================ */
.loading-overlay {
  position: fixed; inset: 0; z-index: 60;
  background: rgba(var(--bg-rgb), .85); backdrop-filter: blur(10px);
  display: grid; place-items: center; padding: 24px;
}
.loading-card {
  width: 100%; max-width: 360px; background: var(--panel);
  border: 1px solid var(--panel-border); border-radius: 22px;
  padding: 28px 24px; text-align: center;
  box-shadow: 0 16px 48px rgba(0, 0, 0, .25);
}
.spinner-wrap { position: relative; width: 84px; height: 84px; margin: 0 auto 16px; }
.spinner {
  position: absolute; inset: 0; border-radius: 50%;
  border: 3px solid transparent; border-top-color: var(--accent); border-right-color: var(--secondary);
  animation: spin 1s linear infinite;
}
.spinner-core {
  position: absolute; inset: 16px; border-radius: 50%; background: var(--accent);
  display: grid; place-items: center; font-size: 15px; font-weight: 800; color: var(--on-accent);
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-card h3 { font-size: 18px; margin-bottom:  8px; }
.loading-msg { font-size: 13px; color: var(--text-dim); min-height: 20px; }
.progress-track {
  height: 6px; background: var(--track); border-radius: 99px; overflow: hidden; margin: 16px 0 18px;
}
.progress-bar {
  height: 100%; width: 0%; border-radius: 99px; background: var(--accent);
  transition: width .6s ease, background .25s;
}
.step-list { list-style: none; display: flex; justify-content: space-between; margin-bottom: 20px; }
.step-list li { font-size: 11px; color: var(--text-dim); position: relative; flex: 1; }
.step-list li::before {
  content: ''; display: block; width: 8px; height: 8px; border-radius: 50%;
  background: var(--hairline); margin: 0 auto 6px; transition: all .3s;
}
.step-list li.on { color: var(--accent); }
.step-list li.on::before { background: var(--accent); box-shadow: 0 0 0 3px var(--tint); }
.step-list li.done { color: var(--secondary); }
.step-list li.done::before { background: var(--secondary); }
.btn-cancel {
  background: none; border: 1px solid var(--panel-border); color: var(--text-dim);
  border-radius: 10px; padding: 9px 30px; font-size: 14px;
}
[data-mode="light"] .btn-cancel:active { color: var(--text); border-color: rgba(0, 0, 0, .22); }
[data-mode="dark"] .btn-cancel:active { color: var(--text); border-color: rgba(255, 255, 255, .25); }

/* ============================================================
   轻提示 Toast
   ============================================================ */
.toast {
  position: fixed; z-index: 99; left: 50%; bottom: 90px; transform: translateX(-50%);
  background: rgba(var(--panel-rgb), .96); border: 1px solid var(--panel-border);
  color: var(--text); font-size: 13.5px; padding: 11px 18px; border-radius: 12px;
  max-width: 82vw; text-align: center; box-shadow: 0 8px 28px rgba(0, 0, 0, .18);
  pointer-events: none; /* 纯提示不拦截点击：否则显示期间会挡住底部工具按钮 */
  animation: toastIn .25s ease;
}
@keyframes toastIn { from { opacity: 0; transform: translate(-50%, 8px); } to { opacity: 1; transform: translate(-50%, 0); } }

/* ============================================================
   涂色页（painter.html）
   ============================================================ */
.page-painter { height: 100%; overflow: hidden; }

#stage { position: fixed; inset: 0; z-index: 1; touch-action: none; } /* none: 手势全部交给 3D 控制；z-index:1 → 压住 AR 照片层 */
#stage canvas { display: block; }

/* 顶部栏 */
.top-bar {
  position: fixed; z-index: 20; top: 0; left: 0; right: 0;
  display: flex; align-items: center; gap: 10px;
  padding: calc(10px + env(safe-area-inset-top, 0px)) 14px 10px;
  background: linear-gradient(rgba(var(--bg-rgb), .95), rgba(var(--bg-rgb), 0));
  pointer-events: none; /* 让子元素自行接收事件 */
}
.top-bar > * { pointer-events: auto; }
.btn-back {
  width: 38px; height: 38px; border-radius: 11px; border: 1px solid var(--panel-border);
  background: var(--panel); color: var(--text); font-size: 17px; flex-shrink: 0;
  box-shadow: var(--shadow-card);
}
.top-title { flex: 1; min-width: 0; }
.top-title h2 { font-size: 16px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.top-title p { font-size: 11px; color: var(--text-dim); margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.btn-top {
  height: 38px; padding: 0 13px; border-radius: 11px; border: 1px solid var(--panel-border);
  background: var(--panel); color: var(--text); font-size: 13px; font-weight: 600; flex-shrink: 0;
  box-shadow: var(--shadow-card);
}
.btn-top:active { border-color: var(--accent); color: var(--deep); }

/* 底部工具面板（玻璃，随模式变浅/深） */
.tool-dock {
  position: fixed; z-index: 20; left: 0; right: 0; bottom: 0;
  background: rgba(var(--panel-rgb), .92); backdrop-filter: blur(14px);
  border-top: 1px solid var(--panel-border);
  padding: 10px 12px calc(10px + var(--safe-b));
  transform: translateY(0); transition: transform .3s ease;
}
.tool-dock.hidden { transform: translateY(110%); }

/* 工具行：模式 + 材质 + 操作 */
.tool-row { display: flex; gap: 8px; margin-bottom: 10px; }
.seg { display: flex; background: var(--seg); border: 0; border-radius: 11px; overflow: hidden; flex: 1; }
.seg button {
  flex: 1; border: 0; background: transparent; color: var(--text-dim);
  font-size: 13px; font-weight: 600; padding: 9px 0;
}
.seg button.active { background: var(--accent); color: var(--on-accent); }
.tool-icon {
  width: 42px; height: 40px; border-radius: 11px; flex-shrink: 0;
  border: 1px solid var(--panel-border); background: var(--panel);
  color: var(--text); font-size: 15px; display: grid; place-items: center;
}
.tool-icon:active { border-color: var(--accent); }

/* 色板 */
.palette-row { display: flex; align-items: center; gap: 8px; margin-bottom:  10px; }
.swatches { display: flex; gap: 8px; overflow-x: auto; flex: 1; padding: 2px; scrollbar-width: none; }
.swatches::-webkit-scrollbar { display: none; }
.swatch {
  width: 34px; height: 34px; border-radius: 50%; flex-shrink: 0;
  border: 2px solid var(--hairline); transition: transform .15s, border-color .15s;
}
.swatch.selected { border-color: var(--text); transform: scale(1.18); box-shadow: 0 2px 10px rgba(0, 0, 0, .2); }
/* 取色器：原生 color input 伪装成色块 */
.color-picker-wrap {
  position: relative; width: 34px; height: 34px; border-radius: 50%; flex-shrink: 0;
  background: conic-gradient(red, yellow, lime, cyan, blue, magenta, red);
  border: 2px solid var(--hairline); display: grid; place-items: center; overflow: hidden;
}
.color-picker-wrap input { position: absolute; inset: -8px; opacity: 0; width: 150%; height: 150%; }
.color-picker-wrap.custom::after {
  content: '✎'; position: absolute; font-size: 13px; color: #fff;
  text-shadow: 0 0 3px #000; pointer-events: none;
}

/* 材质行 */
.material-row { display: flex; gap: 8px; }
.mat-btn {
  flex: 1; padding: 8px 0; border-radius: 11px; font-size: 12.5px; font-weight: 600;
  border: 1px solid var(--panel-border); background: var(--panel); color: var(--text-dim);
}
.mat-btn.active { color: var(--on-accent); background: var(--accent); border-color: transparent; }

/* 模型加载中 / 提示气泡 */
.center-tip {
  position: fixed; z-index: 15; top: 50%; left: 50%; transform: translate(-50%, -50%);
  text-align: center; color: var(--text-dim); font-size: 14px; pointer-events: none;
}
.center-tip .spinner { position: relative; width: 46px; height: 46px; margin: 0 auto 12px; }

/* 截图预览浮层（移动端长按保存） */
.shot-overlay {
  position: fixed; inset: 0; z-index: 80; background: rgba(var(--bg-rgb), .94);
  display: grid; place-items: center; padding: 22px;
}
.shot-card { width: 100%; max-width: 420px; text-align: center; }
.shot-card img {
  width: 100%; border-radius: 14px; border: 1px solid var(--panel-border);
  box-shadow: 0 10px 44px rgba(0, 0, 0, .3);
}
.shot-card p { color: var(--text-dim); font-size: 13px; margin: 12px 0 16px; }
.shot-card .btn-primary { max-width: 220px; margin: 0 auto; }

/* 部件信息小徽标 */
.part-badge {
  position: fixed; z-index: 18; top: calc(64px + env(safe-area-inset-top, 0px)); left: 50%;
  transform: translateX(-50%);
  background: rgba(var(--panel-rgb), .95); border: 1px solid var(--panel-border);
  border-radius: 999px; padding: 7px 16px; font-size: 12.5px; color: var(--text);
  box-shadow: var(--shadow-card);
  pointer-events: none; opacity: 0; transition: opacity .25s;
}
.part-badge.show { opacity: 1; }

/* 笔刷大小滑条（笔刷模式显示） */
.brush-row { display: none; align-items: center; gap: 10px; margin-bottom: 10px; }
.brush-row.show { display: flex; }
.brush-row span { font-size: 12px; color: var(--text-dim); flex-shrink: 0; }
input[type="range"] {
  flex: 1; appearance: none; -webkit-appearance: none; height: 4px; border-radius: 99px;
  background: var(--track); outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 22px; height: 22px; border-radius: 50%;
  background: var(--accent); border: 2px solid var(--panel);
  box-shadow: 0 2px 8px var(--tint);
}

/* ============================================================
   涂装台扩展组件（六工具 / 参数面板 / 部件操作 / 导出面板 / AR）
   ============================================================ */

/* 工具条横向滚动（六工具放得下） */
.seg-scroll {
  overflow-x: auto; scrollbar-width: none; flex: 1;
  display: flex; gap: 2px;
}
.seg-scroll::-webkit-scrollbar { display: none; }
.seg-scroll button { white-space: nowrap; padding: 9px 10px; }

/* 动态参数面板（气压/羽化/粗细/透明度/强度…） */
.param-row {
  display: flex; align-items: center; gap: 12px; margin-bottom: 10px;
  overflow-x: auto; scrollbar-width: none; min-height: 30px;
}
.param-row::-webkit-scrollbar { display: none; }
.param-hint { font-size: 12px; color: var(--text-dim); flex-shrink: 0; max-width: 46%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
/* ❓ 工具介绍按钮（参数行内） */
.param-q {
  width: 20px; height: 20px; border-radius: 50%; flex-shrink: 0;
  border: 1px solid var(--panel-border);
  background: var(--accent-soft); color: var(--accent);
  font-size: 12px; font-weight: 700; line-height: 1;
  display: grid; place-items: center;
}
/* 工具介绍卡片正文 */
.tool-intro { padding: 2px 6px 8px; }
.tool-intro p { font-size: 13px; line-height: 1.8; color: var(--text-dim); margin-bottom: 8px; }
.tool-intro b { color: var(--text); display: block; margin-bottom: 2px; font-size: 12.5px; }
.param-item {
  display: flex; align-items: center; gap: 6px; flex-shrink: 0;
  font-size: 12px; color: var(--text-dim);
}
.param-item input[type="range"] { width: 86px; }
.param-item b { min-width: 30px; color: var(--text); font-size: 12px; }

/* 部件操作行（展开/归位/AR） */
.part-row { display: flex; gap: 8px; }
.part-btn {
  flex: 1; padding: 10px 0; border-radius: 11px; font-size: 12.5px; font-weight: 600;
  border: 1px solid var(--panel-border); background: var(--panel); color: var(--text);
}
.part-btn:active { border-color: var(--accent); color: var(--accent); }

/* 底部动作面板（导出菜单 / 部件长按菜单 / STL 弹窗） */
.sheet-mask {
  position: fixed; inset: 0; z-index: 75;
  background: rgba(0, 0, 0, .45);
  display: grid; place-items: end center;
}
.sheet {
  width: 100%; max-width: 560px;
  background: var(--panel); border-radius: 22px 22px 0 0;
  padding: 14px 14px calc(16px + var(--safe-b));
  display: flex; flex-direction: column; gap: 8px;
  animation: sheetIn .25s ease;
}
@keyframes sheetIn { from { transform: translateY(40%); opacity: .4; } to { transform: none; opacity: 1; } }
.sheet-title { font-size: 14px; font-weight: 700; color: var(--text); padding: 2px 6px 6px; }
.sheet-btn {
  border: 0; border-radius: 13px; padding: 14px 0; font-size: 15px; font-weight: 600;
  background: var(--accent-soft); color: var(--text); text-align: left; padding-left: 18px;
}
.sheet-btn:active { opacity: .7; }
.sheet-btn.primary { background: var(--accent); color: var(--on-accent); text-align: center; padding-left: 0; }
.sheet-btn.cancel { background: transparent; border: 1px solid var(--panel-border); color: var(--text-dim); text-align: center; padding-left: 0; }
.stl-tips { padding: 4px 6px 8px; }
.stl-tips p { font-size: 12.5px; color: var(--text-dim); line-height: 1.9; }
.stl-tips b { color: var(--text); }

/* 悬浮部件操作条 */
.detach-bar {
  position: fixed; z-index: 22; left: 12px; right: 12px;
  bottom: calc(218px + var(--safe-b)); /* 悬在工具坞上方 */
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  background: rgba(var(--panel-rgb), .95); border: 1px solid var(--panel-border);
  border-radius: 12px; padding: 8px 12px;
  font-size: 13px; color: var(--accent); font-weight: 700;
  box-shadow: var(--shadow-card);
}

/* 桌面 AR：照片层垫在 3D 画布下，操作条浮在画布上 */
.ar-photo {
  position: fixed; inset: 0; z-index: 0;      /* 画布 #stage 是 z-index:1 */
  width: 100%; height: 100%; object-fit: cover;
}
.ar-bar {
  position: fixed; z-index: 30; top: 0; left: 0; right: 0;
  display: flex; gap: 8px; justify-content: center; flex-wrap: wrap;
  padding: calc(10px + env(safe-area-inset-top, 0px)) 12px 10px;
  background: linear-gradient(rgba(0, 0, 0, .45), rgba(0, 0, 0, 0));
}
.ar-bar .btn-top { background: rgba(255, 255, 255, .92); }
.ar-hint {
  position: fixed; z-index: 30; left: 50%; transform: translateX(-50%);
  bottom: calc(18px + var(--safe-b));
  background: rgba(0, 0, 0, .45); color: #fff;
  font-size: 12px; padding: 7px 14px; border-radius: 999px;
  white-space: nowrap;
}