/* ═══════════════════════════════════════════════════════════════
   乐享家服 — Design System v1.0
   家政综合服务平台 · Warm Editorial Aesthetic
   ═══════════════════════════════════════════════════════════════ */

/* ── Design Tokens ─────────────────────────────────────────── */
:root {
  /* ◆ Color Palette — Warm Earth + Sage Green ◆ */
  --color-bg:            #faf8f5;
  --color-surface:       #ffffff;
  --color-surface-hover: #f5f1eb;
  --color-surface-alt:   #f0ece6;

  --color-primary:       #7d9b76;  /* Sage Green — 自然/信赖 */
  --color-primary-light: #a8c2a2;
  --color-primary-dark:  #5a7a54;
  --color-primary-bg:    #f0f5ef;

  --color-accent:        #c4815e;  /* Warm Terracotta — 温暖/行动 */
  --color-accent-light:  #d9a58a;
  --color-accent-dark:   #a66846;
  --color-accent-bg:     #fdf5f0;

  --color-gold:          #c9a44b;  /* Premium Gold — 认证/高亮 */
  --color-gold-light:    #e8d5a3;
  --color-gold-bg:       #fcf8f0;

  /* ◆ Text Colors ◆ */
  --text-primary:        #2c2416;
  --text-secondary:      #6b5e4f;
  --text-tertiary:       #9b8d7e;
  --text-placeholder:    #bfb5a8;
  --text-on-primary:     #ffffff;
  --text-on-accent:      #ffffff;
  --text-link:           #5a7a54;

  /* ◆ Semantic Colors ◆ */
  --color-success:       #6b9e6b;
  --color-success-bg:    #eef6ee;
  --color-warning:       #d4a84b;
  --color-warning-bg:    #fdf6e8;
  --color-error:         #c4665e;
  --color-error-bg:      #fdf0ef;
  --color-info:          #6b8e9e;
  --color-info-bg:       #eef4f6;

  /* ◆ Typography — Noto Serif SC + Noto Sans SC ◆ */
  --font-display:  'Noto Serif SC', 'Source Han Serif SC', 'SimSun', 'STSong', serif;
  --font-body:     'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', system-ui, sans-serif;
  --font-mono:     'JetBrains Mono', 'Cascadia Code', 'Fira Code', monospace;

  --text-xs:    clamp(0.6875rem, 0.65rem + 0.125vw, 0.75rem);   /* 11-12px */
  --text-sm:    clamp(0.8125rem, 0.78rem + 0.125vw, 0.875rem);  /* 13-14px */
  --text-base:  clamp(0.9375rem, 0.9rem + 0.15vw, 1rem);        /* 15-16px */
  --text-lg:    clamp(1.0625rem, 1rem + 0.2vw, 1.125rem);       /* 17-18px */
  --text-xl:    clamp(1.1875rem, 1.1rem + 0.25vw, 1.25rem);     /* 19-20px */
  --text-2xl:   clamp(1.375rem, 1.25rem + 0.35vw, 1.5rem);      /* 22-24px */
  --text-3xl:   clamp(1.75rem, 1.5rem + 0.5vw, 2rem);           /* 28-32px */
  --text-4xl:   clamp(2.125rem, 1.75rem + 0.75vw, 2.5rem);      /* 34-40px */
  --text-5xl:   clamp(2.625rem, 2rem + 1vw, 3.25rem);           /* 42-52px */

  --leading-tight:   1.15;
  --leading-snug:    1.35;
  --leading-normal:  1.6;
  --leading-relaxed: 1.75;

  --tracking-tight:  -0.02em;
  --tracking-normal: 0;
  --tracking-wide:   0.04em;

  /* ◆ Spacing — 4px base ◆ */
  --space-1:  0.25rem;  /* 4px */
  --space-2:  0.5rem;   /* 8px */
  --space-3:  0.75rem;  /* 12px */
  --space-4:  1rem;     /* 16px */
  --space-5:  1.25rem;  /* 20px */
  --space-6:  1.5rem;   /* 24px */
  --space-8:  2rem;     /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */
  --space-24: 6rem;     /* 96px */

  /* ◆ Border Radius ◆ */
  --radius-sm:   0.375rem;
  --radius-md:   0.5rem;
  --radius-lg:   0.75rem;
  --radius-xl:   1rem;
  --radius-2xl:  1.25rem;
  --radius-3xl:  1.5rem;
  --radius-full: 9999px;

  /* ◆ Shadows — Warm & Soft ◆ */
  --shadow-xs:  0 1px 2px rgba(44, 36, 22, 0.04);
  --shadow-sm:  0 1px 3px rgba(44, 36, 22, 0.06), 0 1px 2px rgba(44, 36, 22, 0.04);
  --shadow-md:  0 4px 6px rgba(44, 36, 22, 0.05), 0 2px 4px rgba(44, 36, 22, 0.04);
  --shadow-lg:  0 10px 15px rgba(44, 36, 22, 0.06), 0 4px 6px rgba(44, 36, 22, 0.04);
  --shadow-xl:  0 20px 25px rgba(44, 36, 22, 0.07), 0 8px 10px rgba(44, 36, 22, 0.04);
  --shadow-2xl: 0 25px 50px rgba(44, 36, 22, 0.1);

  /* ◆ Transitions ◆ */
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-out-expo:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out:    cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast:  150ms;
  --duration-normal: 250ms;
  --duration-slow:   400ms;
  --duration-glacial: 600ms;

  /* ◆ Layout ◆ */
  --container-max: 1280px;
  --container-narrow: 960px;
  --container-wide: 1440px;
  --header-height: 64px;
  --sidebar-width: 280px;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background-color: var(--color-bg);
  min-height: 100dvh;
}

img, svg, video {
  display: block;
  max-width: 100%;
}

a {
  color: var(--text-link);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out-quart);
}
a:hover { color: var(--color-primary-dark); }

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

ul, ol { list-style: none; }

/* ── Focus Styles — WCAG AA ───────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ── Reduced Motion ───────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ═══════════════════════════════════════════════════════════════
   COMPONENT LIBRARY
   ═══════════════════════════════════════════════════════════════ */

/* ── Container ─────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}
.container--narrow { max-width: var(--container-narrow); }
.container--wide { max-width: var(--container-wide); }

/* ── Typography Utilities ──────────────────────────────────── */
.heading-1 {
  font-family: var(--font-display);
  font-size: var(--text-5xl);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  font-weight: 700;
  color: var(--text-primary);
}
.heading-2 {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  font-weight: 600;
}
.heading-3 {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  line-height: var(--leading-snug);
  font-weight: 600;
}
.heading-4 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  line-height: var(--leading-snug);
  font-weight: 600;
}
.heading-5 {
  font-family: var(--font-body);
  font-size: var(--text-xl);
  line-height: var(--leading-snug);
  font-weight: 600;
}
.text-body {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--text-secondary);
}
.text-small {
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  color: var(--text-tertiary);
}
.text-caption {
  font-size: var(--text-xs);
  line-height: var(--leading-normal);
  color: var(--text-tertiary);
}

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1;
  border-radius: var(--radius-md);
  transition: all var(--duration-fast) var(--ease-out-quart);
  cursor: pointer;
  white-space: nowrap;
  user-select: none;
  text-decoration: none;
  min-height: 44px; /* WCAG touch target */
}
.btn:active { transform: scale(0.97); }
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn--primary {
  background-color: var(--color-primary);
  color: var(--text-on-primary);
  box-shadow: var(--shadow-sm);
}
.btn--primary:hover:not(:disabled) {
  background-color: var(--color-primary-dark);
  box-shadow: var(--shadow-md);
  color: var(--text-on-primary);
}

.btn--accent {
  background-color: var(--color-accent);
  color: var(--text-on-accent);
  box-shadow: var(--shadow-sm);
}
.btn--accent:hover:not(:disabled) {
  background-color: var(--color-accent-dark);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--text-placeholder);
}
.btn--outline:hover:not(:disabled) {
  border-color: var(--color-primary);
  color: var(--color-primary-dark);
  background-color: var(--color-primary-bg);
}

.btn--ghost {
  background: transparent;
  color: var(--text-secondary);
}
.btn--ghost:hover:not(:disabled) {
  background-color: var(--color-surface-hover);
  color: var(--text-primary);
}

.btn--gold {
  background: linear-gradient(135deg, var(--color-gold), #b8923d);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn--gold:hover:not(:disabled) {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  min-height: 36px;
}
.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  min-height: 52px;
  border-radius: var(--radius-lg);
}

/* ── Form Elements ─────────────────────────────────────────── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.form-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
}
.form-label .required {
  color: var(--color-error);
  margin-left: 2px;
}
.form-input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  color: var(--text-primary);
  background-color: var(--color-surface);
  border: 1.5px solid #d9d2c5;
  border-radius: var(--radius-md);
  transition: all var(--duration-fast) var(--ease-out-quart);
  min-height: 44px;
}
.form-input::placeholder { color: var(--text-placeholder); }
.form-input:hover { border-color: #bfb5a8; }
.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(125, 155, 118, 0.15);
}
.form-input--error {
  border-color: var(--color-error);
}
.form-input--error:focus {
  box-shadow: 0 0 0 3px rgba(196, 102, 94, 0.15);
}
.form-hint {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}
.form-error {
  font-size: var(--text-xs);
  color: var(--color-error);
}
.form-textarea {
  min-height: 120px;
  resize: vertical;
  line-height: var(--leading-relaxed);
}

/* ── Select ────────────────────────────────────────────────── */
.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%239b8d7e' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  padding-right: var(--space-10);
  cursor: pointer;
}

/* ── Checkbox & Radio ──────────────────────────────────────── */
.form-check {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font-size: var(--text-sm);
}
.form-check input[type="checkbox"],
.form-check input[type="radio"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

/* ── Badge / Tag ───────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: 600;
  line-height: 1.4;
  border-radius: var(--radius-full);
  white-space: nowrap;
}
.badge--primary { background: var(--color-primary-bg); color: var(--color-primary-dark); }
.badge--accent { background: var(--color-accent-bg); color: var(--color-accent-dark); }
.badge--gold { background: var(--color-gold-bg); color: #8a6d2b; }
.badge--success { background: var(--color-success-bg); color: var(--color-success); }
.badge--warning { background: var(--color-warning-bg); color: #8a6d2b; }
.badge--error { background: var(--color-error-bg); color: var(--color-error); }
.badge--outline {
  background: transparent;
  border: 1px solid var(--text-placeholder);
  color: var(--text-secondary);
}
.badge--verified {
  background: linear-gradient(135deg, #f0f5ef, #e8f0e6);
  color: var(--color-primary-dark);
  border: 1px solid var(--color-primary-light);
}

/* ── Avatar ────────────────────────────────────────────────── */
.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  overflow: hidden;
  background-color: var(--color-surface-alt);
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--text-secondary);
  flex-shrink: 0;
}
.avatar--sm { width: 32px; height: 32px; font-size: var(--text-xs); }
.avatar--md { width: 44px; height: 44px; font-size: var(--text-sm); }
.avatar--lg { width: 64px; height: 64px; font-size: var(--text-lg); }
.avatar--xl { width: 96px; height: 96px; font-size: var(--text-2xl); }
.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ── Card ──────────────────────────────────────────────────── */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(44, 36, 22, 0.06);
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out-quart);
}
.card--hoverable:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
  border-color: rgba(44, 36, 22, 0.1);
}
.card__body { padding: var(--space-6); }
.card__header { padding: var(--space-6) var(--space-6) 0; }
.card__footer { padding: 0 var(--space-6) var(--space-6); }
.card__media {
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background-color: var(--color-surface-alt);
}
.card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out-quart);
}
.card--hoverable:hover .card__media img {
  transform: scale(1.05);
}

/* ── Rating Stars ──────────────────────────────────────────── */
.rating {
  display: inline-flex;
  align-items: center;
  gap: 1px;
  color: var(--color-gold);
}
.rating__star {
  width: 16px;
  height: 16px;
}
.rating__star--empty {
  opacity: 0.25;
}
.rating__score {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--text-primary);
  margin-left: var(--space-1);
}
.rating__count {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  margin-left: var(--space-0-5);
}

/* ── Divider ───────────────────────────────────────────────── */
.divider {
  height: 1px;
  background-color: rgba(44, 36, 22, 0.08);
  border: none;
  margin: 0;
}
.divider--spaced {
  margin: var(--space-6) 0;
}
.divider--thick {
  height: 2px;
}

/* ── Section Header ────────────────────────────────────────── */
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}
.section-header__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  letter-spacing: var(--tracking-tight);
  color: var(--text-primary);
  line-height: var(--leading-tight);
}
.section-header__subtitle {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  margin-top: var(--space-1);
}
.section-header__action {
  flex-shrink: 0;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-link);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

/* ── Empty State ───────────────────────────────────────────── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-16) var(--space-6);
  text-align: center;
}
.empty-state__icon {
  width: 80px;
  height: 80px;
  margin-bottom: var(--space-6);
  color: var(--text-placeholder);
}
.empty-state__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
}
.empty-state__desc {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  max-width: 320px;
  margin-bottom: var(--space-6);
}

/* ── Skeleton Loading ──────────────────────────────────────── */
.skeleton {
  background: linear-gradient(90deg, var(--color-surface-alt) 25%, #e8e4dc 50%, var(--color-surface-alt) 75%);
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}
@keyframes skeleton-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ── Toast / Notification ──────────────────────────────────── */
.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-lg);
  border-left: 4px solid var(--color-primary);
  max-width: 400px;
}
.toast--success { border-left-color: var(--color-success); }
.toast--error { border-left-color: var(--color-error); }
.toast--warning { border-left-color: var(--color-warning); }
.toast__icon { flex-shrink: 0; margin-top: 2px; }
.toast__content { flex: 1; }
.toast__title { font-size: var(--text-sm); font-weight: 600; }
.toast__message { font-size: var(--text-xs); color: var(--text-tertiary); margin-top: 2px; }

/* ── Tooltip ───────────────────────────────────────────────── */
.tooltip {
  position: relative;
}
.tooltip__content {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-xs);
  font-weight: 500;
  color: #fff;
  background: var(--text-primary);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-fast) var(--ease-out-quart);
}
.tooltip:hover .tooltip__content { opacity: 1; }

/* ── Pagination ────────────────────────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  margin-top: var(--space-8);
}
.pagination__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 var(--space-3);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  transition: all var(--duration-fast) var(--ease-out-quart);
}
.pagination__btn:hover { background-color: var(--color-surface-hover); }
.pagination__btn--active {
  background-color: var(--color-primary-bg);
  color: var(--color-primary-dark);
  font-weight: 700;
}
.pagination__btn--disabled {
  opacity: 0.3;
  pointer-events: none;
}

/* ── Modal ─────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(44, 36, 22, 0.4);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: var(--space-6);
  animation: fadeIn var(--duration-fast) var(--ease-out-quart);
}
.modal {
  background: var(--color-surface);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
  max-width: 520px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  animation: slideUp var(--duration-normal) var(--ease-out-quart);
}
.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-6) var(--space-6) 0;
}
.modal__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
}
.modal__close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  color: var(--text-tertiary);
  transition: all var(--duration-fast) var(--ease-out-quart);
}
.modal__close:hover {
  background-color: var(--color-surface-hover);
  color: var(--text-primary);
}
.modal__body { padding: var(--space-6); }
.modal__footer {
  padding: 0 var(--space-6) var(--space-6);
  display: flex;
  gap: var(--space-3);
  justify-content: flex-end;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Tabs ──────────────────────────────────────────────────── */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid rgba(44, 36, 22, 0.06);
}
.tab {
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-tertiary);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all var(--duration-fast) var(--ease-out-quart);
  cursor: pointer;
}
.tab:hover { color: var(--text-secondary); }
.tab--active {
  color: var(--color-primary-dark);
  border-bottom-color: var(--color-primary);
}

/* ═══════════════════════════════════════════════════════════════
   LAYOUT COMPONENTS
   ═══════════════════════════════════════════════════════════════ */

/* ── Header / Navigation ───────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 248, 245, 0.85);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid rgba(44, 36, 22, 0.06);
  height: var(--header-height);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}
.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: var(--tracking-tight);
}
.site-logo__icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: var(--text-lg);
}
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}
.site-nav__link {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  transition: all var(--duration-fast) var(--ease-out-quart);
  text-decoration: none;
}
.site-nav__link:hover,
.site-nav__link--active {
  color: var(--text-primary);
  background-color: var(--color-surface-hover);
}
.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* ── Search Bar ────────────────────────────────────────────── */
.search-bar {
  position: relative;
  width: 100%;
  max-width: 480px;
}
.search-bar__icon {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--text-tertiary);
  pointer-events: none;
}
.search-bar__input {
  width: 100%;
  padding: var(--space-3) var(--space-4) var(--space-3) var(--space-10);
  font-size: var(--text-sm);
  color: var(--text-primary);
  background-color: var(--color-surface);
  border: 1.5px solid rgba(44, 36, 22, 0.1);
  border-radius: var(--radius-full);
  transition: all var(--duration-fast) var(--ease-out-quart);
  min-height: 44px;
}
.search-bar__input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(125, 155, 118, 0.12);
  background: #fff;
}
.search-bar__input::placeholder { color: var(--text-placeholder); }

/* ── Footer ────────────────────────────────────────────────── */
.site-footer {
  background-color: var(--text-primary);
  color: rgba(255,255,255,0.7);
  padding: var(--space-16) 0 var(--space-8);
  margin-top: var(--space-20);
}
.site-footer__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}
.site-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
}
.site-footer__brand {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--space-4);
}
.site-footer__desc {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  max-width: 320px;
}
.site-footer__heading {
  font-size: var(--text-sm);
  font-weight: 600;
  color: #fff;
  margin-bottom: var(--space-4);
}
.site-footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.site-footer__links a {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.55);
  transition: color var(--duration-fast) var(--ease-out-quart);
}
.site-footer__links a:hover { color: #fff; }
.site-footer__bottom {
  margin-top: var(--space-12);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.35);
}

/* ── Breadcrumb ────────────────────────────────────────────── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  padding: var(--space-4) 0;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-tertiary); }
.breadcrumb a:hover { color: var(--text-link); }
.breadcrumb__sep {
  width: 14px;
  height: 14px;
  color: var(--text-placeholder);
}

/* ── Filter Bar ────────────────────────────────────────────── */
.filter-bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) 0;
  flex-wrap: wrap;
}
.filter-bar__item {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--color-surface);
  border: 1px solid rgba(44, 36, 22, 0.08);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out-quart);
  white-space: nowrap;
}
.filter-bar__item:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary-dark);
}
.filter-bar__item--active {
  background: var(--color-primary-bg);
  border-color: var(--color-primary);
  color: var(--color-primary-dark);
  font-weight: 600;
}

/* ── 2-Column Layout (PC Sidebar) ──────────────────────────── */
.layout-2col {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  gap: var(--space-8);
  align-items: start;
}

/* ── Grid helpers ──────────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-6); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); }

/* ── Flex helpers ──────────────────────────────────────────── */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }

/* ── Spacing helpers ───────────────────────────────────────── */
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.p-6 { padding: var(--space-6); }

/* ── Section spacing ───────────────────────────────────────── */
.section { padding: var(--space-16) 0; }
.section--sm { padding: var(--space-8) 0; }

/* ── Text helpers ──────────────────────────────────────────── */
.text-center { text-align: center; }
.text-right { text-align: right; }
.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ── Screen reader only ────────────────────────────────────── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE — PC Specific (default)
   ═══════════════════════════════════════════════════════════════ */

@media (max-width: 1024px) {
  .site-footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .layout-2col {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 56px;
  }
  .site-nav { display: none; }
  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .section { padding: var(--space-10) 0; }
  .container { padding: 0 var(--space-4); }
  .section-header {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ── Print ─────────────────────────────────────────────────── */
@media print {
  .site-header, .site-footer, .search-bar { display: none; }
  body { background: #fff; color: #000; }
  .container { max-width: 100%; padding: 0; }
}