/* ============================================================
 * 觅美 · 医美全球咨询 - 全局样式
 * 响应式（手机/平板/桌面）+ 多语言适配 + 暗色模式
 * ============================================================ */

/* ---------- 变量 ---------- */
:root {
  --c-bg: #fafaf7;
  --c-bg-elev: #ffffff;
  --c-bg-card: #ffffff;
  --c-fg: #1a1a1a;
  --c-fg-muted: #6b6b6b;
  --c-fg-soft: #999999;
  --c-border: #e8e6e0;
  --c-border-strong: #d3d0c8;
  --c-primary: #1a1a1a;
  --c-accent: #b8956a;        /* 暖金 */
  --c-accent-soft: #f4ecdf;
  --c-success: #16a34a;
  --c-warning: #d97706;
  --c-error: #dc2626;
  --c-info: #2563eb;
  --c-link: #1a1a1a;
  --c-link-hover: #b8956a;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.08);
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --font-sans: 'Noto Sans', 'Noto Sans SC', 'Noto Sans TC', 'Noto Sans JP', 'Noto Sans KR', 'Noto Sans Thai', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-serif: 'Noto Serif', 'Noto Serif SC', Georgia, serif;
  --max-w: 1200px;
  --header-h: 64px;
  --tr: 0.25s ease;
}

[data-theme="dark"] {
  --c-bg: #0f0f0e;
  --c-bg-elev: #1a1a18;
  --c-bg-card: #1a1a18;
  --c-fg: #f0ede4;
  --c-fg-muted: #a8a59c;
  --c-fg-soft: #75716a;
  --c-border: #2a2a26;
  --c-border-strong: #3a3a35;
  --c-primary: #f0ede4;
  --c-accent: #d4b07f;
  --c-accent-soft: #2a2218;
  --c-link: #f0ede4;
  --c-link-hover: #d4b07f;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-fg);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg { max-width: 100%; height: auto; display: block; }
/* JSON-LD 兜底：浏览器本来就默认不渲染 script 内容，
   但有些 headless 截图工具会误渲染。这里强制 display:none 双保险。 */
script[type="application/ld+json"] { display: none !important; }

/* ============================================================
 * RTL（阿拉伯语等）适配
 * ============================================================ */
html[dir="rtl"] body { direction: rtl; text-align: right; }
html[dir="rtl"] .main-nav { flex-direction: row-reverse; }
html[dir="rtl"] .header-right { flex-direction: row-reverse; }
html[dir="rtl"] .lang-switcher .lang-menu { left: 0; right: auto; }
html[dir="rtl"] .process-step::before { /* counter 数字保持居中 */ }
html[dir="rtl"] .trust-row { flex-direction: row-reverse; }
html[dir="rtl"] .footer-bottom { flex-direction: row-reverse; }
html[dir="rtl"] .cat-icon { /* emoji 不变 */ }
html[dir="rtl"] .form-input,
html[dir="rtl"] .form-select,
html[dir="rtl"] .form-textarea { text-align: right; }

a {
  color: var(--c-link);
  text-decoration: none;
  transition: color var(--tr);
}
a:hover { color: var(--c-link-hover); }
button { font-family: inherit; cursor: pointer; }

/* ---------- 容器 ---------- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- 头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--c-bg-elev);
  border-bottom: 1px solid var(--c-border);
  height: var(--header-h);
  display: flex;
  align-items: center;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  color: var(--c-fg);
}
.brand-logo {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-accent), #d4b07f);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}
.main-nav a {
  color: var(--c-fg-muted);
  font-size: 15px;
  font-weight: 500;
  padding: 4px 0;
  position: relative;
}
.main-nav a:hover, .main-nav a.active { color: var(--c-fg); }
.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: -22px;
  left: 0; right: 0;
  height: 2px;
  background: var(--c-accent);
}
.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 500;
  border: 1px solid transparent;
  transition: all var(--tr);
  cursor: pointer;
  text-align: center;
  white-space: nowrap;
}
.btn-primary {
  background: var(--c-primary);
  color: var(--c-bg-elev);
  border-color: var(--c-primary);
}
.btn-primary:hover { background: var(--c-link-hover); border-color: var(--c-link-hover); color: #fff; }
.btn-outline {
  background: transparent;
  color: var(--c-fg);
  border-color: var(--c-border-strong);
}
.btn-outline:hover { background: var(--c-fg); color: var(--c-bg-elev); }
.btn-accent {
  background: var(--c-accent);
  color: #fff;
  border-color: var(--c-accent);
}
.btn-accent:hover { background: #a07a4d; border-color: #a07a4d; }
.btn-sm { padding: 6px 14px; font-size: 14px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-block { width: 100%; }

/* ---------- Hero ---------- */
.hero {
  padding: 80px 0 60px;
  text-align: center;
  background: linear-gradient(180deg, var(--c-accent-soft) 0%, var(--c-bg) 100%);
}
.hero h1 {
  font-size: clamp(28px, 4.5vw, 48px);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 16px;
  color: var(--c-fg);
}
.hero p {
  font-size: clamp(15px, 1.8vw, 18px);
  color: var(--c-fg-muted);
  max-width: 600px;
  margin: 0 auto 32px;
}
.hero .btn-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- 区块 ---------- */
.section {
  padding: 64px 0;
}
.section-title {
  text-align: center;
  margin-bottom: 40px;
}
.section-title h2 {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  margin: 0 0 8px;
}
.section-title p {
  color: var(--c-fg-muted);
  font-size: 16px;
  margin: 0;
}

/* ---------- 卡片 ---------- */
.grid {
  display: grid;
  gap: 20px;
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 960px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

.card {
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--tr);
}
.card:hover {
  border-color: var(--c-accent);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.card-body {
  padding: 20px;
}
.card-title {
  font-size: 17px;
  font-weight: 600;
  margin: 0 0 8px;
  color: var(--c-fg);
}
.card-excerpt {
  font-size: 14px;
  color: var(--c-fg-muted);
  line-height: 1.5;
  margin: 0;
}
.card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--c-fg-soft);
  margin-top: 12px;
}
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
}
.badge-case { background: #dbeafe; color: #1e40af; }
.badge-need { background: #fef3c7; color: #92400e; }

/* 项目分类卡 */
.cat-card {
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--tr);
}
.cat-card:hover {
  border-color: var(--c-accent);
  box-shadow: var(--shadow);
}
.cat-icon {
  font-size: 32px;
  margin-bottom: 12px;
}
.cat-title {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 8px;
}
.cat-desc {
  color: var(--c-fg-muted);
  font-size: 14px;
  margin: 0 0 16px;
  line-height: 1.5;
}
.cat-items {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.cat-items a {
  display: inline-block;
  padding: 4px 10px;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: 999px;
  font-size: 13px;
  color: var(--c-fg);
}
.cat-items a:hover {
  background: var(--c-accent-soft);
  border-color: var(--c-accent);
  color: var(--c-accent);
}

/* ---------- 流程 ---------- */
.process {
  background: var(--c-bg-elev);
}
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  counter-reset: step;
}
@media (max-width: 768px) {
  .process-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .process-grid { grid-template-columns: 1fr; }
}
.process-step {
  text-align: center;
  padding: 24px 16px;
  background: var(--c-bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--c-border);
  position: relative;
}
.process-step::before {
  counter-increment: step;
  content: counter(step);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--c-accent);
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
}
.process-step h3 {
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 6px;
}
.process-step p {
  font-size: 13px;
  color: var(--c-fg-muted);
  margin: 0;
  line-height: 1.5;
}

/* ---------- 信任标识 ---------- */
.trust-row {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
  padding: 24px 0;
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
  margin: 32px 0;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--c-fg-muted);
}
.trust-item::before {
  content: '✓';
  color: var(--c-accent);
  font-weight: 700;
  font-size: 16px;
}

/* ---------- 表单 ---------- */
.form {
  max-width: 480px;
  margin: 0 auto;
}
.form-group {
  margin-bottom: 20px;
}
.form-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--c-fg);
}
.form-label .req {
  color: var(--c-error);
  margin-left: 2px;
}
.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--c-border-strong);
  border-radius: var(--radius);
  font-size: 15px;
  font-family: inherit;
  background: var(--c-bg-card);
  color: var(--c-fg);
  transition: border-color var(--tr);
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--c-accent);
  box-shadow: 0 0 0 3px var(--c-accent-soft);
}
.form-help {
  font-size: 12px;
  color: var(--c-fg-soft);
  margin-top: 4px;
}
.form-error {
  font-size: 12px;
  color: var(--c-error);
  margin-top: 4px;
}
.form-privacy {
  font-size: 12px;
  color: var(--c-fg-muted);
  text-align: center;
  margin-top: 16px;
  line-height: 1.5;
}

/* ---------- 语言切换器 ---------- */
.lang-switcher {
  position: relative;
}
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  background: transparent;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--c-fg);
  cursor: pointer;
}
.lang-toggle:hover { background: var(--c-bg); }
.lang-menu {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  background: var(--c-bg-elev);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 6px;
  min-width: 160px;
  box-shadow: var(--shadow-lg);
  display: none;
  z-index: 200;
}
.lang-switcher.open .lang-menu { display: block; }
.lang-menu a {
  display: block;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--c-fg);
}
.lang-menu a:hover { background: var(--c-bg); }
.lang-menu a.active { color: var(--c-accent); font-weight: 600; }

/* ---------- 文章详情 ---------- */
.article-content {
  max-width: 720px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.8;
}
.article-content h2 {
  font-size: 22px;
  font-weight: 700;
  margin: 32px 0 12px;
}
.article-content h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 24px 0 8px;
}
.article-content p {
  margin: 0 0 16px;
  color: var(--c-fg);
}
.article-content blockquote {
  margin: 16px 0;
  padding: 12px 16px;
  background: var(--c-accent-soft);
  border-left: 3px solid var(--c-accent);
  border-radius: var(--radius-sm);
  color: var(--c-fg);
}
.article-content ul, .article-content ol {
  padding-left: 24px;
  margin: 12px 0;
}
.article-content li { margin-bottom: 4px; }
.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--c-fg-muted);
  font-size: 14px;
  margin-bottom: 24px;
}
.article-cover {
  width: 100%;
  max-height: 400px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--c-bg-elev);
  border-top: 1px solid var(--c-border);
  padding: 40px 0 24px;
  margin-top: 80px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 24px;
}
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  margin: 0 0 12px;
  color: var(--c-fg);
}
.footer-col a {
  display: block;
  font-size: 13px;
  color: var(--c-fg-muted);
  padding: 4px 0;
}
.footer-col a:hover { color: var(--c-fg); }
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--c-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--c-fg-soft);
}

/* ---------- 移动端菜单 ---------- */
.mobile-menu-btn {
  display: none;
  background: transparent;
  border: none;
  font-size: 24px;
  color: var(--c-fg);
}
@media (max-width: 768px) {
  .main-nav { display: none; }
  .main-nav.open {
    display: flex;
    position: absolute;
    top: var(--header-h);
    left: 0; right: 0;
    background: var(--c-bg-elev);
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 20px;
    border-bottom: 1px solid var(--c-border);
    gap: 12px;
  }
  .main-nav.open a.active::after { display: none; }
  .mobile-menu-btn { display: block; }
}

/* ---------- 浮动咨询按钮 ---------- */
.fab-consult {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 90;
  width: 60px; height: 60px;
  border-radius: 50%;
  background: var(--c-accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  box-shadow: var(--shadow-lg);
  transition: transform var(--tr);
}
.fab-consult:hover {
  transform: scale(1.05);
  color: #fff;
}

/* ---------- 后台 ---------- */
.admin-body {
  display: flex;
  min-height: 100vh;
}
.admin-sidebar {
  width: 220px;
  background: #1a1a1a;
  color: #d4d4d4;
  padding: 24px 0;
  flex-shrink: 0;
}
.admin-sidebar h2 {
  color: #fff;
  font-size: 16px;
  padding: 0 20px 16px;
  border-bottom: 1px solid #333;
  margin: 0 0 16px;
}
.admin-sidebar a {
  display: block;
  padding: 10px 20px;
  color: #a0a0a0;
  font-size: 14px;
}
.admin-sidebar a:hover, .admin-sidebar a.active {
  background: #2a2a2a;
  color: #fff;
}
.admin-main {
  flex: 1;
  padding: 32px;
  overflow: auto;
  background: var(--c-bg);
}
.admin-card {
  background: var(--c-bg-elev);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 16px;
}
.admin-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--c-bg-elev);
  border-radius: var(--radius);
  overflow: hidden;
}
.admin-table th, .admin-table td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid var(--c-border);
  font-size: 14px;
}
.admin-table th {
  background: var(--c-bg);
  font-weight: 600;
  color: var(--c-fg-muted);
}
.admin-table tr:hover { background: var(--c-bg); }

/* ---------- Utility ---------- */
.text-muted { color: var(--c-fg-muted); }
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-4 { margin-top: 16px; }
.mb-4 { margin-bottom: 16px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }
.hidden { display: none; }

/* ---------- 暗色切换按钮 ---------- */
.theme-toggle {
  background: transparent;
  border: 1px solid var(--c-border);
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--c-fg);
  cursor: pointer;
}
.theme-toggle:hover { background: var(--c-bg); }