/* ==============================================
   团长经营助手 — Design System & Styles
   移动优先 H5，375px 基准，适配 320-768px
   ============================================== */

/* ----- Design Tokens ----- */
:root {
  /* Brand — warm coral */
  --color-primary: #F97316;
  --color-primary-hover: #EA580C;
  --color-primary-soft: #FFF7ED;
  --color-primary-pale: #FFEDD5;

  /* Neutral surfaces */
  --color-bg: #F9F8F6;
  --color-surface: #FFFFFF;
  --color-surface-hover: #F4F3F0;
  --color-border: #EBE9E5;
  --color-border-light: #F0EFED;

  /* Text */
  --color-text: #1C1917;
  --color-text-secondary: #78716C;
  --color-text-muted: #A8A29E;

  /* Semantic */
  --color-success: #059669;
  --color-success-bg: #ECFDF5;
  --color-warning: #D97706;
  --color-warning-bg: #FFFBEB;
  --color-danger: #DC2626;
  --color-danger-bg: #FEF2F2;

  /* Spacing — 4px grid */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --text-xs: 0.6875rem;
  --text-sm: 0.8125rem;
  --text-base: 0.9375rem;
  --text-lg: 1.0625rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0,0,0,.03);
  --shadow-sm: 0 1px 3px rgba(0,0,0,.04), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,.05), 0 1px 2px rgba(0,0,0,.04);
  --shadow-lg: 0 8px 24px rgba(0,0,0,.06), 0 2px 8px rgba(0,0,0,.04);
  --shadow-nav: 0 -1px 0 rgba(0,0,0,.04), 0 -4px 12px rgba(0,0,0,.03);

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-instant: 80ms;
  --duration-fast: 180ms;
  --duration-normal: 280ms;

  /* Layout */
  --nav-height: 60px;
  --header-height: 48px;
  --content-max: 480px;
}

/* ----- Reset ----- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overscroll-behavior: none;
  min-height: 100dvh;
}

/* ----- App Shell ----- */
.app {
  max-width: var(--content-max);
  margin: 0 auto;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  position: relative;
}

/* ----- Header ----- */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(249,248,246,.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 0 var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  border-bottom: 1px solid var(--color-border-light);
}

.app-header h1 {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.header-action {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-full);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}
.header-action:active { background: var(--color-surface-hover); transform: scale(.94); }

/* ----- Main Content ----- */
.app-main {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-5) var(--space-5) calc(var(--nav-height) + var(--space-6));
}

.page { display: none; }
.page.active {
  display: block;
  animation: pageEnter var(--duration-normal) var(--ease-out);
}

@keyframes pageEnter {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ----- Bottom Nav ----- */
.nav-bar {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: var(--content-max);
  height: var(--nav-height);
  background: var(--color-surface);
  border-top: 1px solid var(--color-border-light);
  display: flex;
  align-items: center;
  z-index: 100;
  padding-bottom: env(safe-area-inset-bottom, 0);
}

.nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: var(--space-1) 0;
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--color-text-muted);
  position: relative;
  transition: color var(--duration-fast) var(--ease-out);
}

.nav-item.active { color: var(--color-primary); }

.nav-item.active::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: var(--color-primary);
}

.nav-icon  { font-size: 1.25rem; line-height: 1; }
.nav-label { font-size: 0.625rem; font-weight: 600; letter-spacing: .02em; }

/* ----- Section Headers ----- */
.section-header {
  margin-bottom: var(--space-5);
}

.section-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: var(--color-text);
}

.section-subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-top: var(--space-1);
}

/* ----- Hero Banner (Home) ----- */
.hero-banner {
  background: linear-gradient(135deg, #F97316 0%, #FB923C 40%, #FDBA74 100%);
  border-radius: var(--radius-xl);
  padding: var(--space-8) var(--space-6);
  color: #fff;
  margin-bottom: var(--space-5);
  position: relative;
  overflow: hidden;
}

.hero-banner::before {
  content: '';
  position: absolute;
  top: -10%;
  right: -15%;
  width: 200px;
  height: 200px;
  background: rgba(255,255,255,.06);
  border-radius: 50%;
}

.hero-banner::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: 40%;
  width: 120px;
  height: 120px;
  background: rgba(255,255,255,.04);
  border-radius: 50%;
}

.hero-greeting {
  font-size: var(--text-3xl);
  font-weight: 700;
  margin-bottom: 2px;
  position: relative;
  z-index: 1;
  letter-spacing: -0.03em;
}

.hero-subtitle {
  font-size: var(--text-sm);
  opacity: .8;
  position: relative;
  z-index: 1;
  font-weight: 400;
}

.hero-stats {
  display: flex;
  gap: var(--space-6);
  margin-top: var(--space-5);
  position: relative;
  z-index: 1;
}

.hero-stat {
  flex: 1;
}

.hero-stat-value {
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.hero-stat-label {
  font-size: 0.6875rem;
  opacity: .7;
  margin-top: 1px;
}

/* ----- Quick Actions ----- */
.quick-actions {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.quick-action {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-2);
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--color-text);
  transition: all var(--duration-fast) var(--ease-out);
}
.quick-action:active {
  background: var(--color-surface-hover);
  transform: scale(.95);
}

.quick-action-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.qa-recommend { background: var(--color-primary-soft); }
.qa-copy      { background: #EEF2FF; }
.qa-analyze   { background: var(--color-success-bg); }
.qa-churn     { background: var(--color-warning-bg); }

/* ----- Product Card ----- */
.product-list { display: flex; flex-direction: column; gap: var(--space-3); }

.product-card {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-5);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  transition: all var(--duration-fast) var(--ease-out);
  position: relative;
  cursor: pointer;
}
.product-card:active {
  background: var(--color-surface-hover);
  transform: scale(.985);
}

.product-thumb {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: var(--color-primary-soft);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.625rem;
}

.product-body { flex: 1; min-width: 0; }

.product-name {
  font-size: var(--text-lg);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.product-category {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

.product-pricing {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
}

.price-now {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-primary);
}

.price-cost {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-decoration: line-through;
}

.price-margin {
  font-size: var(--text-xs);
  color: var(--color-success);
  font-weight: 600;
  margin-left: auto;
  background: var(--color-success-bg);
  padding: 2px var(--space-2);
  border-radius: var(--radius-sm);
}

.product-reason {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-top: var(--space-2);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-tags {
  display: flex;
  gap: var(--space-1);
  margin-top: var(--space-2);
  flex-wrap: wrap;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--space-2);
  border-radius: var(--radius-sm);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: .01em;
}

.tag-warm  { background: var(--color-primary-soft); color: var(--color-primary); }
.tag-cool  { background: #EEF2FF; color: #4F6EF7; }
.tag-green { background: var(--color-success-bg); color: var(--color-success); }

/* ----- Feedback Buttons ----- */
.product-actions {
  display: flex;
  gap: var(--space-1);
  margin-top: var(--space-2);
  justify-content: flex-end;
}

.feedback-btn {
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 50%;
  background: var(--color-bg);
  font-size: 0.875rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--duration-fast) var(--ease-out);
}

.feedback-btn:active {
  transform: scale(1.2);
  background: var(--color-primary-soft);
}

/* ----- Copy Generator ----- */
.form-group { margin-bottom: var(--space-4); }

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
  text-transform: uppercase;
  letter-spacing: .04em;
}

.form-select, .form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-surface);
  transition: border-color var(--duration-fast) var(--ease-out);
  -webkit-appearance: none;
  appearance: none;
}

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23A8A29E' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-soft);
}

.form-textarea {
  min-height: 76px;
  resize: vertical;
}

/* Style pills */
.style-pills {
  display: flex;
  gap: var(--space-2);
}

.style-pill {
  flex: 1;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  border: 1.5px solid var(--color-border);
  background: var(--color-surface);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  cursor: pointer;
  text-align: center;
  transition: all var(--duration-fast) var(--ease-out);
}

.style-pill.active {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

/* Copy result card */
.copy-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.copy-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border-light);
  background: var(--color-bg);
}

.badge {
  font-size: 0.625rem;
  font-weight: 700;
  padding: 3px var(--space-3);
  border-radius: var(--radius-full);
  letter-spacing: .03em;
  text-transform: uppercase;
}

.badge-primary { background: var(--color-primary-soft); color: var(--color-primary); }
.badge-warm    { background: #FFF7ED; color: var(--color-primary); }
.badge-muted   { background: var(--color-surface-hover); color: var(--color-text-muted); }

.copy-card-body {
  padding: var(--space-5);
  font-size: var(--text-base);
  line-height: 1.8;
  white-space: pre-line;
  color: var(--color-text);
}

.copy-card-actions {
  display: flex;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--color-border-light);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  border: 1.5px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  white-space: nowrap;
}
.btn:active { background: var(--color-surface-hover); transform: scale(.97); }

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  font-weight: 700;
}
.btn-primary:active { background: var(--color-primary-hover); }

.btn-block { width: 100%; }

.btn-lg {
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-base);
  border-radius: var(--radius-lg);
}

/* ----- Profile Page ----- */
.profile-header {
  text-align: center;
  padding: var(--space-8) var(--space-6);
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border-light);
  margin-bottom: var(--space-5);
}

.avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, #F97316, #FB923C);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: var(--space-3);
  box-shadow: 0 4px 16px rgba(249,115,22,.25);
}

.profile-name {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: 2px;
}

.profile-detail {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.profile-detail + .profile-detail { margin-top: 0; }

.plan-tag {
  display: inline-block;
  margin-top: var(--space-2);
  padding: 3px var(--space-3);
  border-radius: var(--radius-full);
  font-size: 0.6875rem;
  font-weight: 600;
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.menu-list {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  overflow: hidden;
}

.menu-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  cursor: pointer;
  transition: background var(--duration-instant) var(--ease-out);
}
.menu-item + .menu-item { border-top: 1px solid var(--color-border-light); }
.menu-item:active { background: var(--color-surface-hover); }

.menu-item-left {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.menu-item-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .875rem;
}

.menu-item-label {
  font-size: var(--text-base);
  font-weight: 500;
}

.menu-item-extra {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-right: var(--space-2);
}

.menu-item-arrow {
  color: var(--color-text-muted);
  font-size: var(--text-lg);
}

/* ----- Empty State ----- */
.empty-state {
  text-align: center;
  padding: var(--space-12) var(--space-6);
  color: var(--color-text-muted);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: var(--space-4);
  opacity: .6;
}

.empty-state-text {
  font-size: var(--text-sm);
  line-height: 1.5;
}

/* ----- Spinner ----- */
.spinner {
  display: flex;
  justify-content: center;
  padding: var(--space-10);
  gap: 6px;
}

.spinner-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-primary);
  animation: dotBounce 1.2s infinite ease-in-out;
}
.spinner-dot:nth-child(2) { animation-delay: .15s; }
.spinner-dot:nth-child(3) { animation-delay: .30s; }

@keyframes dotBounce {
  0%, 80%, 100% { transform: scale(.5); opacity: .3; }
  40% { transform: scale(1); opacity: 1; }
}

/* ----- Toast ----- */
.toast {
  position: fixed;
  bottom: calc(var(--nav-height) + var(--space-6));
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  background: var(--color-text);
  color: #fff;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: all var(--duration-normal) var(--ease-out);
  box-shadow: var(--shadow-lg);
  max-width: calc(100vw - 48px);
  text-align: center;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); pointer-events: auto; }

/* ----- Alert Cards ----- */
.alert-card {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-3);
  border: 1px solid;
}

.alert-critical { background: var(--color-danger-bg); border-color: #FECACA; }
.alert-high     { background: var(--color-warning-bg); border-color: #FDE68A; }
.alert-medium   { background: #FFF7ED; border-color: #FED7AA; }

.alert-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-1);
}

.alert-level {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .03em;
}
.alert-critical .alert-level { color: var(--color-danger); }
.alert-high     .alert-level { color: var(--color-warning); }
.alert-medium   .alert-level { color: var(--color-primary); }

.alert-days {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.alert-suggestion {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

/* ----- Growth Cards ----- */
.growth-card {
  padding: var(--space-4);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  margin-bottom: var(--space-3);
}

.growth-priority {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  margin-bottom: var(--space-1);
}

.growth-title { font-size: var(--text-lg); font-weight: 600; margin-bottom: 2px; }
.growth-desc  { font-size: var(--text-sm); color: var(--color-text-secondary); }

/* ----- Search Bar ----- */
.search-bar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 0 var(--space-4);
  margin-bottom: var(--space-3);
  transition: border-color var(--duration-fast) var(--ease-out);
}
.search-bar:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-soft);
}

.search-icon {
  font-size: 0.875rem;
  opacity: 0.4;
  flex-shrink: 0;
}

.search-input {
  flex: 1;
  border: none;
  background: transparent;
  padding: var(--space-3) 0;
  font-size: var(--text-sm);
  font-family: var(--font-sans);
  color: var(--color-text);
  outline: none;
  min-width: 0;
}
.search-input::placeholder {
  color: var(--color-text-muted);
}

.search-clear {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: none;
  background: var(--color-surface-hover);
  color: var(--color-text-muted);
  font-size: 0.625rem;
  cursor: pointer;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.search-clear:active { background: var(--color-border); }

/* ----- Filter Chips (horizontal scroll) ----- */
.filter-scroll {
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-3);
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.filter-scroll::-webkit-scrollbar { display: none; }

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-secondary);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--duration-fast) var(--ease-out);
  flex-shrink: 0;
}
.filter-chip:active { transform: scale(.95); }
.filter-chip.active {
  background: var(--color-primary-soft);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.filter-chip-count {
  font-weight: 400;
  opacity: 0.6;
  font-size: 0.5625rem;
}

/* ----- Sort Bar ----- */
.sort-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.sort-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 500;
}

.sort-select {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-1) var(--space-5) var(--space-1) var(--space-2);
  font-size: var(--text-xs);
  font-family: var(--font-sans);
  color: var(--color-text-secondary);
  background: var(--color-surface);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%23A8A29E' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 6px center;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
}
.sort-select:focus { outline: none; border-color: var(--color-primary); }

/* ----- Pagination ----- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  padding: var(--space-6) 0 var(--space-4);
}

.page-btn {
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}
.page-btn:active { background: var(--color-surface-hover); }
.page-btn[disabled] {
  color: var(--color-text-muted);
  pointer-events: none;
  opacity: 0.4;
}

.page-info {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

/* ----- Product Detail Modal ----- */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(0,0,0,.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-normal) var(--ease-out);
}
.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  width: 100%;
  max-width: var(--content-max);
  max-height: 85vh;
  margin: 0 var(--space-4);
  background: var(--color-bg);
  border-radius: var(--radius-xl);
  position: relative;
  padding: var(--space-5);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  animation: modalIn var(--duration-normal) var(--ease-out);
}

@keyframes modalIn {
  from { transform: translateY(20px) scale(0.96); opacity: 0; }
  to   { transform: translateY(0) scale(1); opacity: 1; }
}

.modal-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: var(--color-surface);
  color: var(--color-text-secondary);
  font-size: 1rem;
  cursor: pointer;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}
.modal-close:active { background: var(--color-surface-hover); }

.modal-scroll {
  overflow-y: auto;
  padding-top: var(--space-4);
  -webkit-overflow-scrolling: touch;
}

/* Detail content */
.detail-emoji {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: var(--space-3);
}

.detail-name {
  font-size: var(--text-xl);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: var(--space-2);
}

.detail-brand {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-3);
}

.detail-pricing {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  margin-bottom: var(--space-5);
  border: 1px solid var(--color-border-light);
}

.detail-price-row {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.detail-price-now {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-primary);
}

.detail-price-cost {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: line-through;
}

.detail-margin {
  font-size: var(--text-xs);
  color: var(--color-success);
  font-weight: 600;
  background: var(--color-success-bg);
  padding: 2px var(--space-2);
  border-radius: var(--radius-sm);
  margin-left: auto;
}

.detail-section {
  margin-bottom: var(--space-5);
}

.detail-section h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
  letter-spacing: .02em;
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
}

.detail-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  border: 1px solid var(--color-border-light);
}

.detail-label {
  color: var(--color-text-muted);
  font-size: var(--text-xs);
}

.detail-desc {
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.detail-spec {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface);
  border-radius: var(--radius-sm);
}

.detail-tags {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.detail-actions {
  padding: var(--space-6) 0 var(--space-4);
}

/* ----- Subscription Info Card ----- */
.sub-info-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  padding: var(--space-5);
  margin-bottom: var(--space-5);
}

.sub-info-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-2) 0;
}
.sub-info-row + .sub-info-row {
  border-top: 1px solid var(--color-border-light);
}

.sub-info-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.sub-info-value {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

/* ----- Plan Cards ----- */
.plan-card {
  position: relative;
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  margin-bottom: var(--space-3);
  text-align: center;
}

.plan-featured {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary), 0 4px 16px rgba(249,115,22,.12);
}

.plan-ribbon {
  position: absolute;
  top: -1px;
  right: var(--space-4);
  background: var(--color-primary);
  color: #fff;
  padding: 2px var(--space-4);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  font-size: 0.625rem;
  font-weight: 700;
}

.plan-current-tag {
  position: absolute;
  top: var(--space-3);
  left: var(--space-4);
  background: var(--color-success-bg);
  color: var(--color-success);
  padding: 1px var(--space-2);
  border-radius: var(--radius-sm);
  font-size: 0.625rem;
  font-weight: 700;
}

.plan-current {
  border-color: var(--color-success);
  background: var(--color-success-bg);
  opacity: 0.85;
}

.plan-name {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-top: var(--space-2);
  margin-bottom: var(--space-1);
}

.plan-price {
  margin-bottom: var(--space-1);
}

.plan-price-value {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-primary);
}

.plan-price-unit {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.plan-period-prices {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}

.plan-features {
  list-style: none;
  text-align: left;
  margin-bottom: var(--space-4);
}

.plan-features li {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  padding: var(--space-1) 0;
}

.btn-disabled {
  opacity: 0.5;
  pointer-events: none;
}

/* ----- Period Option ----- */
.period-option {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-2);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}
.period-option:active {
  background: var(--color-primary-soft);
  border-color: var(--color-primary);
}

/* ----- Settings Form ----- */
.settings-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}
.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.form-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
}
.form-input {
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-bg);
  outline: none;
  transition: border-color 200ms;
  box-sizing: border-box;
}
.form-input:focus {
  border-color: var(--color-primary);
}

/* ----- Responsive ----- */
@media (min-width: 480px) {
  .app {
    border-left: 1px solid var(--color-border-light);
    border-right: 1px solid var(--color-border-light);
  }
}

@media (max-width: 360px) {
  :root {
    --text-base: 0.875rem;
    --text-lg: 1rem;
    --text-xl: 1.125rem;
    --text-2xl: 1.375rem;
  }
  .app-main { padding: var(--space-4) var(--space-4) calc(var(--nav-height) + var(--space-4)); }
  .quick-actions { grid-template-columns: repeat(4, 1fr); gap: var(--space-2); }
  .quick-action { padding: var(--space-3) var(--space-1); }
  .quick-action-icon { width: 32px; height: 32px; font-size: 1rem; }
}