/* ============================================================
   P-666 职业技能培训与考试平台 — 设计系统 V3.0
   风格：商务信任蓝 | 现代扁平 | 移动优先
   ============================================================ */

/* ———— CSS Variables ———— */
:root {
  /* Primary */
  --c-primary: #2563EB;
  --c-primary-light: #3B82F6;
  --c-primary-dark: #1D4ED8;
  --c-primary-bg: #EFF6FF;
  --c-primary-100: #DBEAFE;

  /* Accent */
  --c-accent: #F59E0B;
  --c-accent-light: #FBBF24;
  --c-accent-bg: #FFFBEB;

  /* Success/Error/Warning */
  --c-success: #10B981;
  --c-success-bg: #ECFDF5;
  --c-error: #EF4444;
  --c-error-bg: #FEF2F2;
  --c-warning: #F59E0B;
  --c-warning-bg: #FFFBEB;

  /* Neutrals */
  --c-bg: #F8FAFC;
  --c-card: #FFFFFF;
  --c-white: #FFFFFF;
  --c-border: #E2E8F0;
  --c-border-light: #F1F5F9;
  --c-text: #0F172A;
  --c-text-secondary: #64748B;
  --c-text-tertiary: #94A3B8;
  --c-text-inverse: #FFFFFF;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.08), 0 4px 6px rgba(0,0,0,0.05);
  --shadow-primary: 0 4px 14px rgba(37,99,235,0.25);

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Typography */
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --font-mono: 'SF Mono', 'Monaco', 'Menlo', monospace;
  --fs-xs: 11px;
  --fs-sm: 13px;
  --fs-base: 15px;
  --fs-md: 17px;
  --fs-lg: 20px;
  --fs-xl: 24px;
  --fs-2xl: 30px;

  /* Layout */
  --tab-height: 64px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --page-max: 480px;
}

/* ———— Reset ———— */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  font-size: var(--fs-base);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  max-width: var(--page-max);
  margin: 0 auto;
  min-height: 100vh;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
input, select, textarea, button { font-family: inherit; font-size: inherit; }
input, select, textarea {
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  background: var(--c-card);
  color: var(--c-text);
  width: 100%;
  outline: none;
  transition: border-color 0.2s;
}
input:focus, select:focus, textarea:focus { border-color: var(--c-primary); box-shadow: 0 0 0 3px rgba(37,99,235,0.1); }

/* ———— Buttons ———— */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 10px 20px; border-radius: var(--radius-sm); border: none;
  font-weight: 500; cursor: pointer; transition: all 0.2s;
  white-space: nowrap;
}
.btn-primary { background: var(--c-primary); color: var(--c-white); box-shadow: var(--shadow-primary); }
.btn-primary:active { background: var(--c-primary-dark); transform: scale(0.97); }
.btn-outline { background: var(--c-white); color: var(--c-primary); border: 1.5px solid var(--c-primary); }
.btn-outline:active { background: var(--c-primary-bg); }
.btn-accent { background: var(--c-accent); color: var(--c-white); }
.btn-ghost { background: transparent; color: var(--c-text-secondary); }
.btn-sm { padding: 6px 14px; font-size: var(--fs-sm); border-radius: var(--radius-full); }
.btn-lg { padding: 14px 28px; font-size: var(--fs-md); border-radius: var(--radius-full); }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.5; pointer-events: none; }

/* ———— Cards ———— */
.card {
  background: var(--c-card); border-radius: var(--radius-md);
  box-shadow: var(--shadow); padding: var(--space-md);
}
.card-flush { padding: 0; }
.card-sm { padding: 12px; }
.card-lg { padding: var(--space-lg); border-radius: var(--radius-lg); }
.card-clickable { cursor: pointer; transition: transform 0.2s, box-shadow 0.2s; }
.card-clickable:active { transform: scale(0.98); box-shadow: var(--shadow-sm); }

/* ———— Typography ———— */
.text-primary { color: var(--c-primary); }
.text-success { color: var(--c-success); }
.text-error { color: var(--c-error); }
.text-accent { color: var(--c-accent); }
.text-secondary { color: var(--c-text-secondary); }
.text-tertiary { color: var(--c-text-tertiary); }
.text-sm { font-size: var(--fs-sm); }
.text-xs { font-size: var(--fs-xs); }
.text-lg { font-size: var(--fs-lg); font-weight: 600; }
.text-xl { font-size: var(--fs-xl); font-weight: 700; }
.text-bold { font-weight: 600; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* ———— Tags & Badges ———— */
.tag {
  display: inline-flex; align-items: center;
  padding: 3px 10px; border-radius: var(--radius-full);
  font-size: var(--fs-xs); font-weight: 500;
}
.tag-blue { background: var(--c-primary-bg); color: var(--c-primary); }
.tag-green { background: var(--c-success-bg); color: var(--c-success); }
.tag-amber { background: var(--c-accent-bg); color: var(--c-accent); }
.tag-red { background: var(--c-error-bg); color: var(--c-error); }
.tag-gray { background: #F1F5F9; color: var(--c-text-secondary); }

.badge {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 20px; height: 20px; border-radius: var(--radius-full);
  font-size: var(--fs-xs); font-weight: 600; padding: 0 6px;
}
.badge-primary { background: var(--c-primary); color: var(--c-white); }
.badge-accent { background: var(--c-accent); color: var(--c-white); }
.badge-red { background: var(--c-error); color: var(--c-white); }

/* ———— Tab Bar (底部导航) ———— */
.tab-bar {
  position: fixed; bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 100%; max-width: var(--page-max);
  height: var(--tab-height);
  padding-bottom: var(--safe-bottom);
  background: var(--c-white);
  border-top: 1px solid var(--c-border-light);
  display: flex; z-index: 100;
}
.tab-item {
  flex: 1; display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 4px; cursor: pointer; transition: color 0.2s;
  color: var(--c-text-tertiary); font-size: 11px;
}
.tab-item .tab-icon { font-size: 22px; line-height: 1; }
.tab-item.active { color: var(--c-primary); }

/* ———— Page Header ———— */
.page-header {
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark));
  color: var(--c-white); padding: 24px var(--space-md);
  position: relative;
}
.page-header-plain {
  background: var(--c-white);
  color: var(--c-text);
  border-bottom: 1px solid var(--c-border-light);
  padding: 16px var(--space-md);
  text-align: center;
  position: sticky; top: 0; z-index: 50;
}
.header-back {
  position: absolute; left: 16px; top: 50%; transform: translateY(-50%);
  font-size: 24px; cursor: pointer; color: inherit; line-height: 1;
  background: none; border: none; padding: 4px 8px;
}

/* ———— Entry Grid ———— */
.entry-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-sm);
  padding: var(--space-md);
}
.entry-item {
  display: flex; flex-direction: column;
  align-items: center; gap: 6px; cursor: pointer;
  padding: 14px 8px; border-radius: var(--radius-md);
  background: var(--c-card); box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}
.entry-item:active { transform: scale(0.95); }
.entry-icon {
  width: 44px; height: 44px; border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; background: var(--c-primary-bg);
}
.entry-label { font-size: var(--fs-sm); font-weight: 600; color: var(--c-text); }
.entry-desc { font-size: var(--fs-xs); color: var(--c-text-tertiary); }

/* ———— Section ———— */
.section { margin: var(--space-md); }
.section-header {
  display: flex; justify-content: space-between;
  align-items: center; margin-bottom: 12px;
}
.section-title { font-size: var(--fs-md); font-weight: 700; }
.section-more { font-size: var(--fs-sm); color: var(--c-primary); cursor: pointer; }

/* ———— Certificate Card ———— */
.cert-card {
  background: var(--c-card); border-radius: var(--radius-md);
  box-shadow: var(--shadow); padding: 16px;
  display: flex; align-items: center; gap: 14px;
  cursor: pointer; transition: transform 0.2s;
  position: relative; overflow: hidden;
}
.cert-card:active { transform: scale(0.98); }
.cert-card + .cert-card { margin-top: 10px; }
.cert-icon {
  width: 52px; height: 52px; border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; flex-shrink: 0;
}
.cert-icon.health { background: #EFF6FF; }
.cert-icon.service { background: #ECFDF5; }
.cert-icon.tech { background: #F3E8FF; }
.cert-icon.build { background: #FFF7ED; }
.cert-icon.finance { background: #FFF1F2; }
.cert-info { flex: 1; min-width: 0; }
.cert-name { font-size: var(--fs-base); font-weight: 600; }
.cert-meta { font-size: var(--fs-sm); color: var(--c-text-secondary); margin-top: 2px; }
.cert-tags { display: flex; gap: 6px; margin-top: 6px; flex-wrap: wrap; }
.cert-arrow { color: var(--c-text-tertiary); font-size: 20px; }

/* ———— VIP Entry Card ———— */
.vip-entry {
  background: linear-gradient(135deg, #FFFBEB, #FFF7ED);
  border: 1.5px solid #FCD34D;
  border-radius: var(--radius-md);
  padding: 14px 16px; margin: var(--space-md);
  display: flex; align-items: center; gap: 12px;
  cursor: pointer; transition: transform 0.2s;
}
.vip-entry:active { transform: scale(0.98); }
.vip-entry-icon {
  width: 44px; height: 44px; border-radius: var(--radius-full);
  background: var(--c-accent); display: flex;
  align-items: center; justify-content: center;
  font-size: 22px; flex-shrink: 0;
}
.vip-entry-info { flex: 1; }
.vip-entry-title { font-weight: 700; font-size: var(--fs-base); color: #92400E; }
.vip-entry-desc { font-size: var(--fs-sm); color: #B45309; margin-top: 2px; }

/* ———— Question List ———— */
.q-card {
  display: flex; flex-direction: column;
  background: var(--c-card); border-radius: var(--radius-md);
  box-shadow: var(--shadow); padding: 16px; margin: 10px 12px;
  cursor: pointer; transition: transform 0.15s;
}
.q-card:active { transform: scale(0.98); }
.q-title {
  font-size: var(--fs-base); font-weight: 500;
  display: -webkit-box; -webkit-line-clamp: 2;
  -webkit-box-orient: vertical; overflow: hidden;
  line-height: 1.5; margin-bottom: 10px;
}
.q-footer { display: flex; gap: 8px; align-items: center; }
.q-stats { margin-left: auto; font-size: var(--fs-xs); color: var(--c-text-tertiary); }

/* ———— Practice ———— */
.practice-progress {
  background: var(--c-card); padding: 12px 16px;
  position: relative; overflow: hidden;
}
.progress-bar-bg {
  height: 3px; background: var(--c-border-light);
  border-radius: 2px; position: absolute;
  left: 16px; right: 16px; bottom: 0;
}
.progress-bar-fill {
  height: 100%; background: var(--c-primary);
  border-radius: 2px; transition: width 0.3s;
}
.option-item {
  display: flex; align-items: center; gap: 12px;
  background: var(--c-card); border: 2px solid var(--c-border);
  border-radius: var(--radius-md); padding: 14px 16px;
  margin-bottom: 10px; cursor: pointer; transition: all 0.2s;
}
.option-item.selected { border-color: var(--c-primary); background: var(--c-primary-bg); }
.option-item.correct { border-color: var(--c-success); background: var(--c-success-bg); }
.option-item.wrong { border-color: var(--c-error); background: var(--c-error-bg); }
.option-key {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--c-border-light); display: flex;
  align-items: center; justify-content: center;
  font-size: var(--fs-sm); font-weight: 600; flex-shrink: 0;
}
.option-item.selected .option-key { background: var(--c-primary); color: var(--c-white); }
.option-item.correct .option-key { background: var(--c-success); color: var(--c-white); }
.option-item.wrong .option-key { background: var(--c-error); color: var(--c-white); }
.option-text { flex: 1; font-size: var(--fs-base); line-height: 1.5; }

/* ———— Feedbacks ———— */
.result-box {
  padding: 14px 16px; border-radius: var(--radius-md);
  text-align: center; font-weight: 600; font-size: var(--fs-base);
}
.result-box.correct { background: var(--c-success-bg); color: #065F46; }
.result-box.incorrect { background: var(--c-error-bg); color: #991B1B; }

.explanation-box {
  margin: 12px 0; padding: 14px 16px;
  background: var(--c-primary-bg); border-radius: var(--radius-md);
  border-left: 3px solid var(--c-primary);
}
.explanation-box .label { font-weight: 600; color: var(--c-primary); font-size: var(--fs-sm); }
.explanation-box .text { font-size: var(--fs-sm); color: var(--c-text-secondary); margin-top: 4px; }

/* ———— Bottom Action Bar ———— */
.bottom-bar {
  position: fixed; bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 100%; max-width: var(--page-max);
  background: var(--c-card); border-top: 1px solid var(--c-border-light);
  padding: 12px var(--space-md);
  padding-bottom: calc(12px + var(--safe-bottom));
  display: flex; gap: 10px; align-items: center; z-index: 90;
}

/* ———— Forms ———— */
.form-group { margin-bottom: var(--space-md); }
.form-label { font-size: var(--fs-sm); font-weight: 600; color: var(--c-text); margin-bottom: 6px; display: block; }
.form-row { display: flex; gap: var(--space-sm); }
.form-row .form-group { flex: 1; }
.form-section {
  background: var(--c-card); border-radius: var(--radius-md);
  box-shadow: var(--shadow); padding: var(--space-md); margin: 10px 12px;
}
.form-section-title { font-size: var(--fs-base); font-weight: 700; margin-bottom: 14px; }

/* ———— Member Cards ———— */
.member-header {
  background: linear-gradient(135deg, #1E3A5F, #2563EB);
  color: var(--c-white); padding: 28px var(--space-md);
  border-radius: var(--radius-lg); margin: var(--space-md);
}
.member-type { font-size: var(--fs-lg); font-weight: 700; }
.member-days { font-size: var(--fs-2xl); font-weight: 800; margin-top: 6px; }
.member-expire { font-size: var(--fs-sm); opacity: 0.7; margin-top: 4px; }
.plan-card {
  background: var(--c-card); border-radius: var(--radius-md);
  box-shadow: var(--shadow); padding: 20px 16px;
  text-align: center; cursor: pointer; position: relative;
  border: 2px solid transparent; transition: all 0.2s;
}
.plan-card.recommended { border-color: var(--c-primary); }
.plan-card .plan-badge {
  position: absolute; top: -1px; right: 16px;
  background: var(--c-accent); color: var(--c-white);
  font-size: var(--fs-xs); padding: 2px 12px;
  border-radius: 0 0 6px 6px; font-weight: 600;
}
.plan-card .plan-price { font-size: 32px; font-weight: 800; color: var(--c-text); }
.plan-card .plan-price .currency { font-size: 16px; }
.plan-card .plan-period { font-size: var(--fs-sm); color: var(--c-text-secondary); }
.plan-card .plan-features {
  margin-top: 14px; text-align: left; display: flex; flex-direction: column; gap: 6px;
}
.plan-feature { font-size: var(--fs-sm); color: var(--c-text-secondary); display: flex; align-items: center; gap: 8px; }
.plan-feature::before { content: '✓'; color: var(--c-success); font-weight: 700; }

/* ———— Exam ———— */
.exam-timer {
  text-align: center; font-size: var(--fs-2xl); font-weight: 800;
  color: var(--c-primary); padding: 16px; font-family: var(--font-mono);
}
.exam-timer.warning { color: var(--c-accent); }
.exam-timer.danger { color: var(--c-error); }
.q-nav {
  display: flex; gap: 6px; overflow-x: auto;
  padding: 12px; background: var(--c-card);
}
.q-nav-item {
  width: 32px; height: 32px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: var(--fs-xs); font-weight: 600; flex-shrink: 0;
  border: 1.5px solid var(--c-border); cursor: pointer;
  background: var(--c-card); transition: all 0.2s;
}
.q-nav-item.answered { background: var(--c-primary); color: var(--c-white); border-color: var(--c-primary); }
.q-nav-item.current { border-color: var(--c-primary); color: var(--c-primary); border-width: 2px; }
.q-nav-item.marked { border-color: var(--c-accent); color: var(--c-accent); }

/* ———— Score Ring ———— */
.score-ring {
  width: 140px; height: 140px; margin: 20px auto; position: relative;
}
.score-ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.score-ring .ring-bg { fill: none; stroke: var(--c-border-light); stroke-width: 10; }
.score-ring .ring-fill { fill: none; stroke-width: 10; stroke-linecap: round; transition: stroke-dashoffset 1s ease; }
.score-ring .ring-fill.pass { stroke: var(--c-success); }
.score-ring .ring-fill.fail { stroke: var(--c-error); }
.score-value {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  text-align: center;
}
.score-value .score-num { font-size: 36px; font-weight: 800; display: block; line-height: 1; }
.score-value .score-label { font-size: var(--fs-xs); color: var(--c-text-tertiary); display: block; margin-top: 4px; }

/* ———— User Center ———— */
.user-header-card {
  background: linear-gradient(135deg, #1E3A5F, #2563EB);
  color: var(--c-white); padding: 24px var(--space-md);
}
.user-row { display: flex; align-items: center; gap: 14px; }
.avatar {
  width: 60px; height: 60px; border-radius: 50%;
  border: 3px solid rgba(255,255,255,0.3);
  background: rgba(255,255,255,0.15);
  display: flex; align-items: center; justify-content: center;
  font-size: 28px; flex-shrink: 0; overflow: hidden;
}
.avatar img { width: 100%; height: 100%; object-fit: cover; border-radius: 50%; }
.user-stats {
  display: flex; gap: var(--space-md); margin-top: 16px;
}
.user-stat {
  text-align: center; flex: 1;
}
.user-stat .num { font-size: var(--fs-lg); font-weight: 700; display: block; }
.user-stat .label { font-size: var(--fs-xs); opacity: 0.7; display: block; }

.menu-section {
  margin: var(--space-md);
  background: var(--c-card); border-radius: var(--radius-md);
  box-shadow: var(--shadow); overflow: hidden;
}
.menu-section-title {
  padding: 14px 16px; font-size: var(--fs-sm); font-weight: 700;
  color: var(--c-text-secondary); border-bottom: 1px solid var(--c-border-light);
}
.menu-item {
  display: flex; align-items: center; gap: 12px;
  padding: 15px 16px; cursor: pointer; transition: background 0.15s;
  border-bottom: 1px solid var(--c-border-light);
}
.menu-item:last-child { border-bottom: none; }
.menu-item:active { background: #F8FAFC; }
.menu-item .menu-icon { font-size: 20px; width: 24px; text-align: center; flex-shrink: 0; }
.menu-item .menu-text { flex: 1; font-size: var(--fs-base); color: var(--c-text); }
.menu-item .menu-value { font-size: var(--fs-sm); color: var(--c-text-tertiary); }
.menu-item .menu-arrow { font-size: 16px; color: var(--c-text-tertiary); }

/* ———— Job Cards ———— */
.job-card {
  background: var(--c-card); border-radius: var(--radius-md);
  box-shadow: var(--shadow); padding: 16px; margin: 10px 12px; cursor: pointer;
}
.job-top { display: flex; gap: 12px; }
.company-logo {
  width: 48px; height: 48px; border-radius: var(--radius-sm);
  background: var(--c-primary-bg); display: flex;
  align-items: center; justify-content: center;
  font-size: 18px; color: var(--c-primary); font-weight: 700; flex-shrink: 0;
}
.job-info { flex: 1; min-width: 0; }
.job-title-row { display: flex; justify-content: space-between; align-items: flex-start; }
.job-title { font-size: var(--fs-base); font-weight: 600; }
.job-salary { color: var(--c-error); font-weight: 700; font-size: var(--fs-base); white-space: nowrap; }
.job-company { font-size: var(--fs-sm); color: var(--c-text-secondary); margin-top: 2px; }
.job-tags { display: flex; gap: 6px; margin-top: 8px; flex-wrap: wrap; }
.job-footer { display: flex; justify-content: space-between; align-items: center; margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--c-border-light); }
.job-address { font-size: var(--fs-xs); color: var(--c-text-tertiary); }

/* ———— Invite ———— */
.invite-hero {
  text-align: center; padding: 40px var(--space-md);
  background: linear-gradient(135deg, #EFF6FF, #DBEAFE);
  border-radius: var(--radius-lg); margin: var(--space-md);
}
.invite-code {
  display: inline-block; background: var(--c-white);
  padding: 10px 24px; border-radius: var(--radius-sm);
  font-size: var(--fs-lg); font-weight: 800;
  letter-spacing: 4px; color: var(--c-primary);
  margin: 16px 0; border: 2px dashed var(--c-primary);
}
.invite-stats { display: flex; gap: 24px; justify-content: center; margin: var(--space-md); }
.invite-stat { text-align: center; }
.invite-stat .num { font-size: var(--fs-xl); font-weight: 800; color: var(--c-primary); }
.invite-stat .label { font-size: var(--fs-xs); color: var(--c-text-secondary); margin-top: 4px; }

/* ———— VIP Channel ———— */
.vip-hero {
  text-align: center; padding: 32px var(--space-md);
  background: linear-gradient(135deg, #FFFBEB, #FFF7ED);
  border-radius: var(--radius-lg); margin: var(--space-md);
}
.vip-hero .vip-icon { font-size: 56px; display: block; margin-bottom: 12px; }
.vip-hero .vip-title { font-size: var(--fs-xl); font-weight: 800; color: #92400E; }
.vip-hero .vip-price { font-size: 40px; font-weight: 800; color: var(--c-error); margin-top: 8px; }
.vip-contact-card {
  background: var(--c-card); border-radius: var(--radius-md);
  box-shadow: var(--shadow); padding: var(--space-md); margin: 10px 12px;
}
.vip-contact-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 0; border-bottom: 1px solid var(--c-border-light);
}
.vip-contact-item:last-child { border-bottom: none; }
.vip-contact-label { font-weight: 600; display: flex; align-items: center; gap: 8px; }

/* ———— Utilities ———— */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-1 { flex: 1; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.p-sm { padding: var(--space-sm); }
.p-md { padding: var(--space-md); }
.m-sm { margin: var(--space-sm); }
.m-md { margin: var(--space-md); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mb-md { margin-bottom: var(--space-md); }
.pb-safe { padding-bottom: calc(var(--tab-height) + var(--safe-bottom)); }
.pb-bar { padding-bottom: 80px; }
.overflow-y { overflow-y: auto; }
.scroll-x { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.scroll-x::-webkit-scrollbar { display: none; }

/* ———— Empty States ———— */
.empty-state {
  text-align: center; padding: 60px var(--space-lg);
}
.empty-state .empty-icon { font-size: 56px; display: block; margin-bottom: 16px; }
.empty-state .empty-text { color: var(--c-text-secondary); font-size: var(--fs-base); margin-bottom: 16px; }

/* ———— Loading ———— */
.loading { text-align: center; padding: 40px; color: var(--c-text-tertiary); font-size: var(--fs-sm); }
.skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%; animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ———— Animations ———— */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-in { animation: fadeInUp 0.4s ease-out; }
.stagger-1 { animation-delay: 0.05s; }
.stagger-2 { animation-delay: 0.1s; }
.stagger-3 { animation-delay: 0.15s; }
.stagger-4 { animation-delay: 0.2s; }

/* ———— Toast ———— */
.toast {
  position: fixed; top: 20px; left: 50%; transform: translateX(-50%);
  background: var(--c-text); color: var(--c-white); z-index: 1000;
  padding: 12px 24px; border-radius: var(--radius-full);
  font-size: var(--fs-sm); font-weight: 500;
  animation: fadeInUp 0.3s ease-out;
}
.toast.success { background: var(--c-success); }
.toast.error { background: var(--c-error); }

/* ———— Responsive ———— */
@media (max-width: 360px) {
  .entry-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ———— SVG Icon System ———— */
.icon { display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; }
.icon svg { width: 100%; height: 100%; }
.icon-sm { width: 16px; height: 16px; }
.icon-md { width: 24px; height: 24px; }
.icon-lg { width: 32px; height: 32px; }
.icon-xl { width: 48px; height: 48px; }
.icon-2xl { width: 64px; height: 64px; }

.icon-primary { color: var(--c-primary); }
.icon-success { color: var(--c-success); }
.icon-accent { color: var(--c-accent); }
.icon-error { color: var(--c-error); }
.icon-secondary { color: var(--c-text-secondary); }
.icon-white { color: #fff; }

.icon-circle {
  border-radius: 50%;
}
.icon-bg-blue { background: var(--c-primary-bg); }
.icon-bg-green { background: var(--c-success-bg); }
.icon-bg-amber { background: var(--c-accent-bg); }
.icon-bg-red { background: var(--c-error-bg); }
.icon-bg-purple { background: #F3E8FF; }
.icon-bg-orange { background: #FFF7ED; }
.icon-bg-pink { background: #FFF1F2; }

/* 入口图标卡片 */
.entry-icon-svg {
  width: 48px; height: 48px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 2px;
}