/* ============================================================
   Vertrise跃升 · 统一设计系统（浅色默认 + 深色可切换）
   - 默认浅色（主页配色）；<html data-theme="dark"> 切深色
   - 品牌色：teal 主色 #14B8A6→#0891B2 + 篮球橙 #FB923C
   - 全局深浅切换由 js/ui.js 控制，各页面 <head> 内联脚本预应用
   ============================================================ */

:root {
  color-scheme: light;
  --bg: #ffffff;
  --bg-soft: #f8fafc;
  --surface: #ffffff;
  --surface2: #f1f5f9;
  --surface3: #e2e8f0;
  --border: #e7ecf3;
  --border-strong: #cbd5e1;
  --text: #0f172a;
  --text2: #475569;
  --text3: #94a3b8;
  --accent: #0d9488;
  --accent-bright: #14b8a6;
  --accent-dim: #0f766e;
  --accent-ink: #ffffff;
  --gradient: linear-gradient(135deg, #0d9488, #0891b2);
  --btn-gradient: linear-gradient(135deg, #0d9488, #0e7fa8);
  --secondary: #ea580c;
  --success: #059669;
  --warning: #d97706;
  --danger: #dc2626;
  --info: #0284c7;
  --nav-bg: rgba(255, 255, 255, 0.82);
  --glow: 0 0 22px rgba(13, 148, 136, 0.28);
  --glow-success: 0 0 22px rgba(5, 150, 105, 0.3);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 8px;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC',
    'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  --font-mono: 'Cascadia Code', 'Consolas', 'SF Mono', 'Fira Code', monospace;
  --shadow: 0 18px 50px rgba(15, 23, 42, 0.12);
  --shadow-sm: 0 6px 20px rgba(15, 23, 42, 0.08);
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);

  /* 兼容旧版工具页变量名 */
  --bg-primary: var(--bg);
  --bg-secondary: var(--surface);
  --bg-tertiary: var(--surface2);
  --bg-panel: var(--surface);
  --text-primary: var(--text);
  --text-secondary: var(--text2);
  --text-muted: var(--text3);
  --border-light: var(--border-strong);
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b1220;
  --bg-soft: #0f172a;
  --surface: #141d31;
  --surface2: #1e293b;
  --surface3: #2a3750;
  --border: rgba(148, 163, 184, 0.14);
  --border-strong: rgba(148, 163, 184, 0.3);
  --text: #f1f5f9;
  --text2: #9aa8bd;
  --text3: #64748b;
  --accent: #2dd4bf;
  --accent-bright: #5eead4;
  --accent-dim: #0d9488;
  --accent-ink: #04242a;
  --gradient: linear-gradient(135deg, #14b8a6, #06b6d4);
  --btn-gradient: linear-gradient(135deg, #14b8a6, #06b6d4);
  --secondary: #fb923c;
  --success: #34d399;
  --warning: #f59e0b;
  --danger: #f87171;
  --info: #38bdf8;
  --nav-bg: rgba(11, 18, 32, 0.8);
  --glow: 0 0 22px rgba(45, 212, 191, 0.3);
  --glow-success: 0 0 22px rgba(52, 211, 153, 0.35);
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --shadow-sm: 0 6px 20px rgba(0, 0, 0, 0.3);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:where(body) {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
  transition: background 0.25s ease, color 0.25s ease;
}

a {
  color: inherit;
}

::selection {
  background: rgba(45, 212, 191, 0.3);
}

/* 通用容器 */
.jt-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============ 顶部导航 ============ */
.jt-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 24px;
  height: 64px;
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.jt-nav .jt-nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
}

.jt-nav .jt-nav-logo .logo-img {
  width: 32px;
  height: 32px;
  object-fit: contain;
  display: block;
  border-radius: 8px;
}

.jt-nav .jt-nav-logo .logo-badge {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--accent-ink);
  flex-shrink: 0;
}

.jt-nav .jt-nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
}

.jt-nav .jt-nav-link {
  padding: 8px 14px;
  border-radius: 10px;
  font-size: 0.88rem;
  color: var(--text2);
  text-decoration: none;
  transition: all var(--transition);
  white-space: nowrap;
}

.jt-nav .jt-nav-link:hover {
  color: var(--text);
  background: var(--surface2);
}

.jt-nav .jt-nav-link.active {
  color: var(--accent-ink);
  background: var(--gradient);
  font-weight: 600;
}

.jt-nav .jt-nav-user {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text2);
}

.jt-nav .jt-nav-user .user-name {
  color: var(--text);
  font-weight: 600;
  max-width: 130px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.jt-nav .jt-nav-user .plan-pill {
  font-size: 0.7rem;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(45, 212, 191, 0.12);
  border: 1px solid rgba(45, 212, 191, 0.35);
  color: var(--accent);
  letter-spacing: 0.05em;
  font-weight: 600;
}

/* 深浅色切换按钮 */
.theme-toggle {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text2);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition);
}

.theme-toggle:hover {
  color: var(--text);
  background: var(--surface2);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
}

.theme-toggle .icon-sun {
  display: block;
}

.theme-toggle .icon-moon {
  display: none;
}

[data-theme="dark"] .theme-toggle .icon-sun {
  display: none;
}

[data-theme="dark"] .theme-toggle .icon-moon {
  display: block;
}

/* 移动端汉堡按钮 */
.nav-toggle {
  display: none;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.nav-toggle svg {
  width: 20px;
  height: 20px;
}

@media (max-width: 1000px) {
  .jt-nav {
    position: relative;
    padding: 0 14px;
    height: 60px;
    flex-wrap: wrap;
  }
  .nav-toggle {
    display: inline-flex;
    order: 3;
  }
  .jt-nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 10px 14px 14px;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
  }
  .jt-nav-links.open {
    display: flex;
  }
  .jt-nav-links .jt-nav-link {
    padding: 11px 14px;
  }
  .jt-nav-user .user-name {
    max-width: 90px;
  }
}

/* 中屏收缩导航：页面增多后链接变多，821px 以上统一收紧防溢出 */
@media (min-width: 821px) {
  .jt-nav { padding: 0 14px; }
  .jt-nav .jt-nav-link { padding: 8px 9px; font-size: 0.82rem; }
  .jt-nav .jt-nav-user { gap: 6px; }
  .jt-nav .jt-nav-user .user-name { max-width: 70px; }
}

/* ============ 按钮 ============ */
.jt-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 24px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  font-family: var(--font-sans);
  transition: all var(--transition);
  white-space: nowrap;
  user-select: none;
  text-decoration: none;
  line-height: 1.2;
}

.jt-btn-accent {
  background: var(--btn-gradient);
  color: var(--accent-ink);
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(13, 148, 136, 0.35);
}

.jt-btn-accent:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgba(13, 148, 136, 0.45);
}

.jt-btn-outline {
  background: transparent;
  border-color: var(--border-strong);
  color: var(--text);
}

.jt-btn-outline:hover {
  background: var(--surface2);
  border-color: var(--accent);
  color: var(--accent);
}

.jt-btn-ghost {
  background: transparent;
  color: var(--text2);
}

.jt-btn-ghost:hover {
  color: var(--text);
  background: var(--surface2);
}

.jt-btn-danger {
  background: rgba(248, 113, 113, 0.12);
  border-color: rgba(248, 113, 113, 0.4);
  color: var(--danger);
}

.jt-btn-danger:hover {
  background: var(--danger);
  color: #fff;
}

.jt-btn-sm {
  padding: 6px 14px;
  font-size: 0.8rem;
  border-radius: 999px;
}

.jt-btn-lg {
  padding: 13px 30px;
  font-size: 1rem;
  border-radius: 12px;
}

.jt-btn-block {
  width: 100%;
}

.jt-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

/* ============ 表单 ============ */
.jt-input {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  font-size: 0.95rem;
  font-family: var(--font-sans);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.jt-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.16);
}

.jt-input::placeholder {
  color: var(--text3);
  opacity: 0.8;
}

.jt-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}

.jt-field label {
  font-size: 0.84rem;
  color: var(--text2);
  letter-spacing: 0.01em;
  font-weight: 500;
}

.jt-msg {
  font-size: 0.84rem;
  margin-top: 4px;
  min-height: 1.2em;
  transition: all var(--transition);
}

.jt-msg.ok {
  color: var(--success);
}

.jt-msg.err {
  color: var(--danger);
}

/* ============ 卡片 ============ */
.jt-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

.jt-card-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.jt-card-sub {
  color: var(--text2);
  font-size: 0.88rem;
  margin-bottom: 20px;
}

/* ============ 区块标题 ============ */
.jt-section-title {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text2);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 36px 28px 14px;
}

/* ============ 登录/认证卡 ============ */
.jt-auth-wrap {
  min-height: calc(100vh - 64px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.jt-auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
  box-shadow: var(--shadow);
}

.jt-auth-card .auth-logo {
  width: 56px;
  height: 56px;
  margin: 0 auto 14px;
  display: block;
  object-fit: contain;
  border-radius: 14px;
}

.jt-auth-card h2 {
  text-align: center;
  font-size: 1.4rem;
  margin-bottom: 4px;
}

.jt-auth-card .auth-sub {
  text-align: center;
  color: var(--text2);
  font-size: 0.88rem;
  margin-bottom: 24px;
}

.jt-auth-switch {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text2);
  margin-top: 16px;
}

.jt-auth-switch a,
.jt-link {
  color: var(--accent);
  text-decoration: none;
  cursor: pointer;
  font-weight: 600;
}

.jt-auth-switch a:hover,
.jt-link:hover {
  text-decoration: underline;
}

/* ============ 提示条 ============ */
.jt-toast {
  position: fixed;
  top: 78px;
  left: 50%;
  transform: translateX(-50%) translateY(-14px);
  z-index: 9999;
  padding: 10px 24px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 600;
  background: var(--surface2);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition);
  color: var(--text);
  max-width: 90vw;
  text-align: center;
}

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

.jt-toast.ok {
  border-color: rgba(52, 211, 153, 0.5);
  color: var(--success);
}

.jt-toast.err {
  border-color: rgba(248, 113, 113, 0.5);
  color: var(--danger);
}

/* ============ 页脚 ============ */
.jt-footer {
  border-top: 1px solid var(--border);
  padding: 30px 24px 40px;
  color: var(--text3);
  font-size: 0.82rem;
}

.jt-footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  align-items: center;
}

.jt-footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text2);
  font-weight: 600;
}

.jt-footer-brand img {
  width: 24px;
  height: 24px;
  border-radius: 7px;
}

.jt-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.jt-footer-links a {
  color: var(--text3);
  text-decoration: none;
  transition: color var(--transition);
}

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

/* ============ 姿态分析：框选人物（ROI） ============ */
.vt-box {
  position: absolute;
  border: 2px solid #00c6ff;
  background: rgba(0, 198, 255, 0.12);
  box-shadow: 0 0 10px rgba(0, 198, 255, 0.4);
  cursor: move;
  z-index: 6;
  touch-action: none;
  border-radius: 6px;
}

.vt-box-handle {
  position: absolute;
  right: -7px;
  bottom: -7px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #00c6ff;
  border: 2px solid #fff;
  cursor: nwse-resize;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
}

/* ============ 问题反馈导航高亮 ============ */
.jt-nav-link.feedback-nav {
  background: rgba(251, 146, 60, 0.1);
  color: var(--secondary);
  box-shadow: inset 0 0 0 1px rgba(251, 146, 60, 0.3);
}

.jt-nav-link.feedback-nav:hover {
  background: rgba(251, 146, 60, 0.18);
  color: var(--secondary);
}

.jt-nav-link.feedback-nav.active {
  background: var(--gradient);
  color: var(--accent-ink);
  box-shadow: none;
}

/* ============ 使用教程 ============ */
.jt-guide {
  background: linear-gradient(180deg, rgba(45, 212, 191, 0.07), transparent 65%);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 18px;
}

.jt-guide summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.jt-guide summary::-webkit-details-marker {
  display: none;
}

.jt-guide-title {
  font-weight: 700;
  font-size: 1.02rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.jt-guide-caret {
  color: var(--text3);
  transition: transform var(--transition);
}

.jt-guide[open] .jt-guide-caret {
  transform: rotate(180deg);
}

.jt-guide-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.jt-guide-step {
  display: flex;
  gap: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
}

.jt-guide-step .g-num {
  width: 28px;
  height: 28px;
  border-radius: 9px;
  background: var(--gradient);
  color: var(--accent-ink);
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.jt-guide-step b {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 2px;
}

.jt-guide-step span {
  color: var(--text2);
  font-size: 0.8rem;
  line-height: 1.6;
}

.jt-guide-tip {
  margin-top: 12px;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.35);
  border-radius: 12px;
  padding: 10px 14px;
  font-size: 0.84rem;
  line-height: 1.6;
}

.jt-guide-tip b {
  color: var(--warning);
  white-space: nowrap;
}

.jt-guide-video {
  margin-top: 12px;
  border: 1.5px dashed var(--border-strong);
  border-radius: 12px;
  padding: 18px;
  text-align: center;
  color: var(--text3);
}

.jt-guide-video .g-play {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--surface2);
  border: 1px solid var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 8px;
  color: var(--accent);
  font-size: 1rem;
}

.jt-guide-video b {
  display: block;
  color: var(--text2);
  font-size: 0.9rem;
  margin-bottom: 2px;
}

.jt-guide-video span {
  font-size: 0.78rem;
}

@media (max-width: 720px) {
  .jt-guide-steps {
    grid-template-columns: 1fr;
  }
}

/* ============ 滚动条 ============ */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-thumb {
  background: var(--surface3);
  border-radius: 6px;
  border: 2px solid var(--bg);
}

::-webkit-scrollbar-track {
  background: transparent;
}

/* ============================================================
   手机端增强适配（追加于全局样式末尾，仅媒体查询覆盖，不影响桌面端）
   ============================================================ */

/* 1) 防横向滚动：html 层限宽（保留 sticky/backdrop 特性） */
@media (max-width: 820px) {
  html {
    overflow-x: hidden;
  }
  body {
    max-width: 100vw;
    overflow-x: hidden;
  }
}

/* 2) 安全区（刘海屏/底部手势条） */
@supports (padding: max(0px)) {
  .jt-nav {
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
  }
  .jt-footer {
    padding-bottom: max(40px, env(safe-area-inset-bottom));
  }
}

/* 3) 窄屏：按钮/输入框触摸目标 + 通用压缩 */
@media (max-width: 480px) {
  .jt-btn {
    padding: 12px 18px;
    font-size: 0.9rem;
    min-height: 44px;
  }
  .jt-btn-sm {
    padding: 6px 12px;
    min-height: 34px;
    font-size: 0.78rem;
  }
  .jt-input {
    font-size: 16px; /* 防止 iOS 聚焦放大 */
    padding: 12px 14px;
  }
  .jt-card {
    padding: 20px 16px;
  }
  .jt-auth-card {
    padding: 28px 20px;
  }
  .jt-container {
    padding: 0 14px;
  }
  .jt-section-title {
    margin-left: 16px;
    margin-right: 16px;
  }
  .jt-toast {
    top: 70px;
    font-size: 0.82rem;
    padding: 9px 18px;
  }
}

/* 4) barbell 页：窄屏解除 360px 最小宽 */
@media (max-width: 480px) {
  .panel-left,
  .panel-right {
    min-width: 0 !important;
  }
  .main-container {
    padding: 6px;
  }
}

/* 5) pose 页：窄屏解除 320px 最小宽 + 时间轴控件压缩 */
@media (max-width: 480px) {
  .ps-panel {
    min-width: 0 !important;
  }
  .ps-wrap {
    padding: 16px 12px 40px;
  }
}

/* 6) jump 页：窄屏进一步压缩 */
@media (max-width: 600px) {
  .app-container {
    padding: 12px 10px;
  }
  .video-zone {
    max-height: 320px;
  }
}

/* 7) trainer 页：练习行允许换行、表单控件全宽 */
@media (max-width: 600px) {
  .ex-row {
    flex-wrap: wrap;
  }
  .ex-name,
  .ex-note {
    min-width: 0 !important;
    flex: 1 1 100% !important;
  }
  .ex-controls {
    flex: 1 1 100%;
    flex-wrap: wrap;
    gap: 8px;
  }
}

/* 8) membership 页：套餐卡窄屏单列、支付方式/邀请码输入行可换行 */
@media (max-width: 480px) {
  .ms-wrap {
    padding: 18px 12px 48px;
  }
  .ms-plans {
    grid-template-columns: 1fr;
  }
  .ms-plan-desc {
    min-height: auto;
  }
  .ms-order {
    flex-wrap: wrap;
  }
  .ms-invite-row {
    flex-wrap: wrap;
  }
  .ms-invite-row .jt-input {
    flex: 1 1 100%;
  }
}

/* 8b) feedback 页：窄屏收窄内边距 */
@media (max-width: 480px) {
  .fb-wrap {
    padding: 24px 14px 48px;
  }
}

/* 9) history 页：表格窄屏横向可滚动而非挤压 */
@media (max-width: 600px) {
  .history-table-wrap,
  .ht-table-wrap,
  [class*="table-wrap"] {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .history-table,
  table.hist-table {
    min-width: 480px;
  }
}

/* 10) 通用：任何页面的横向滚动容器在触屏上顺滑 */
@media (hover: none) {
  * {
    -webkit-tap-highlight-color: transparent;
  }
  .jt-nav-link,
  .jt-btn,
  .theme-toggle,
  .nav-toggle,
  .pay-method,
  .ms-plan {
    touch-action: manipulation;
  }
}