/* ============================================================
   光尘阁GEO · 本地AI信息枢纽 — 设计系统 v1.0
   
   设计原则：
   1. 信息密度优先 — 不用大图占屏，文字+数据说话
   2. 信任感优先 — 颜色克制、字体端正、留白充足
   3. 可扫描性 — F型浏览布局
   4. 行动导向 — 每页有明确CTA
   5. 响应式 — 移动端优先
   ============================================================ */

/* --- Variables --- */
:root {
  --ink-900: #111118;
  --ink-800: #1e1e28;
  --ink-700: #2d2d38;
  --ink-600: #4a4a58;
  --ink-500: #6b6b7b;
  --ink-400: #9494a4;
  --ink-300: #c0c0cc;
  --ink-200: #e4e4ec;
  --ink-100: #f4f4f8;
  --ink-50:  #fafafe;

  --warm-gold: #b8954a;
  --warm-gold-light: #d4b96a;
  --warm-gold-subtle: #f5eed9;
  --warm-amber: #c7853e;
  --warm-cream: #faf6f0;

  --accent-blue: #3b6eb5;
  --accent-blue-light: #e8f0fa;
  --accent-green: #3d8c5c;
  --accent-green-light: #e8f6ee;
  --accent-red: #b5443c;
  --accent-red-light: #fce8e6;

  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --font-mono: "SF Mono", "Menlo", "Monaco", "Consolas", monospace;

  --max-width: 960px;
  --max-width-wide: 1120px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --shadow-card: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-card-hover: 0 4px 16px rgba(0,0,0,.08), 0 2px 4px rgba(0,0,0,.04);
  --transition: .2s ease;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-font-smoothing: antialiased; scroll-behavior: smooth; }
body { 
  font-family: var(--font-sans);
  color: var(--ink-800);
  background: var(--ink-50);
  line-height: 1.7;
  min-height: 100vh;
}

/* --- Typography --- */
h1, h2, h3, h4 { 
  font-family: var(--font-serif); 
  font-weight: 700; 
  line-height: 1.35;
  color: var(--ink-900);
  letter-spacing: -0.01em;
}
h1 { font-size: 2rem; margin-bottom: 1rem; }
h2 { font-size: 1.5rem; margin-bottom: .75rem; }
h3 { font-size: 1.2rem; margin-bottom: .5rem; font-family: var(--font-sans); font-weight: 600; }
h4 { font-size: 1rem; margin-bottom: .5rem; font-family: var(--font-sans); font-weight: 600; }
p  { margin-bottom: 1rem; }
a  { color: var(--accent-blue); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--ink-900); }
strong { font-weight: 600; color: var(--ink-900); }
blockquote {
  border-left: 3px solid var(--warm-gold);
  padding: .75rem 1.25rem;
  margin: 1.5rem 0;
  background: var(--warm-gold-subtle);
  color: var(--ink-700);
  font-family: var(--font-serif);
  font-size: 1.05rem;
}
cite { font-style: normal; color: var(--ink-500); font-size: .85rem; }
code { 
  font-family: var(--font-mono);
  background: var(--ink-100); 
  padding: 2px 6px; 
  border-radius: var(--radius-sm);
  font-size: .88em;
}
pre {
  background: var(--ink-900);
  color: var(--ink-100);
  padding: 1.25rem;
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: 1.5rem 0;
  font-size: .85rem;
  line-height: 1.6;
}
pre code { background: none; padding: 0; color: inherit; }

/* --- Layout --- */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; }
.container-wide { max-width: var(--max-width-wide); margin: 0 auto; padding: 0 1.5rem; }

/* --- Header --- */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--ink-200);
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header .container-wide {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: .75rem;
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ink-900);
}
.site-logo .dot {
  width: 8px; height: 8px;
  background: var(--warm-gold);
  border-radius: 50%;
}
.site-nav { display: flex; align-items: center; gap: 1.75rem; }
.site-nav a { 
  color: var(--ink-600); 
  font-size: .9rem; 
  font-weight: 500;
  position: relative;
}
.site-nav a:hover,
.site-nav a.active { color: var(--ink-900); }
.site-nav a.active::after {
  content: '';
  position: absolute;
  bottom: -18px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--warm-gold);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .6rem 1.4rem;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
  line-height: 1.4;
}
.btn-primary {
  background: var(--ink-900);
  color: #fff;
}
.btn-primary:hover { background: var(--ink-700); color: #fff; }
.btn-gold {
  background: var(--warm-gold);
  color: #fff;
}
.btn-gold:hover { background: var(--warm-gold-light); color: #fff; }
.btn-outline {
  background: transparent;
  border: 1px solid var(--ink-300);
  color: var(--ink-700);
}
.btn-outline:hover { border-color: var(--ink-600); color: var(--ink-900); }
.btn-ghost {
  background: transparent;
  color: var(--ink-600);
}
.btn-ghost:hover { background: var(--ink-100); color: var(--ink-900); }
.btn-sm { padding: .4rem 1rem; font-size: .82rem; }

/* --- Hero --- */
.hero {
  padding: 4rem 0 3rem;
  background: linear-gradient(180deg, #fff 0%, var(--ink-50) 100%);
  text-align: center;
}
.hero h1 { 
  font-size: 2.5rem; 
  margin-bottom: .75rem;
  letter-spacing: -0.02em;
}
.hero .subtitle {
  font-size: 1.15rem;
  color: var(--ink-500);
  max-width: 540px;
  margin: 0 auto 2rem;
  line-height: 1.7;
}
.hero .cta-group {
  display: flex;
  gap: .75rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Section Headers --- */
.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  padding-bottom: .75rem;
  border-bottom: 1px solid var(--ink-200);
}
.section-header h2 { margin-bottom: 0; font-size: 1.35rem; }
.section-header .view-all {
  font-size: .88rem;
  color: var(--ink-500);
  font-weight: 500;
}
.section-header .view-all:hover { color: var(--ink-800); }

/* --- Cards --- */
.card {
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--ink-200);
  padding: 1.5rem;
  transition: all var(--transition);
  display: block;
  text-decoration: none;
  color: inherit;
}
.card:hover {
  box-shadow: var(--shadow-card-hover);
  border-color: var(--ink-300);
  transform: translateY(-1px);
}
.card .card-tag {
  display: inline-block;
  font-size: .75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .03em;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  margin-bottom: .75rem;
}
.card .card-tag.insight { background: var(--accent-blue-light); color: var(--accent-blue); }
.card .card-tag.event { background: var(--accent-green-light); color: var(--accent-green); }
.card .card-tag.case { background: var(--accent-red-light); color: var(--accent-red); }
.card .card-tag.faq { background: var(--warm-gold-subtle); color: var(--warm-amber); }
.card h3 { 
  font-size: 1.1rem; 
  margin-bottom: .5rem; 
  line-height: 1.5;
}
.card .card-meta {
  font-size: .82rem;
  color: var(--ink-400);
}
.card .card-desc {
  font-size: .92rem;
  color: var(--ink-600);
  margin-top: .5rem;
  line-height: 1.6;
}

/* Card Grid */
.card-grid { display: grid; gap: 1.25rem; }
.card-grid.col-2 { grid-template-columns: repeat(2, 1fr); }
.card-grid.col-3 { grid-template-columns: repeat(3, 1fr); }
.card-grid.col-4 { grid-template-columns: repeat(4, 1fr); }

/* --- Featured Card (large) --- */
.card-featured {
  grid-column: span 2;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 2rem;
  background: linear-gradient(135deg, var(--ink-800) 0%, var(--ink-900) 100%);
  color: #fff;
  border: none;
}
.card-featured h3 { color: #fff; font-size: 1.35rem; }
.card-featured .card-desc { color: var(--ink-300); }
.card-featured .card-tag { background: rgba(255,255,255,.15); color: var(--warm-gold-light); }
.card-featured:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,0,0,.15); }

/* --- Association Logo Wall --- */
.asso-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
}
.asso-card {
  background: #fff;
  border: 1px solid var(--ink-200);
  border-radius: var(--radius-md);
  padding: 1.5rem 1rem;
  text-align: center;
  transition: all var(--transition);
  text-decoration: none;
  color: var(--ink-700);
}
.asso-card:hover {
  border-color: var(--warm-gold);
  box-shadow: var(--shadow-card-hover);
  color: var(--ink-900);
}
.asso-card .asso-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--ink-100);
  margin: 0 auto .75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}
.asso-card .asso-name {
  font-weight: 600;
  font-size: .95rem;
}
.asso-card .asso-meta {
  font-size: .78rem;
  color: var(--ink-400);
  margin-top: .25rem;
}

/* --- Business Directory --- */
.biz-category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: .75rem;
}
.biz-cat-card {
  background: #fff;
  border: 1px solid var(--ink-200);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  text-decoration: none;
  color: var(--ink-700);
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: .75rem;
}
.biz-cat-card:hover {
  border-color: var(--accent-blue);
  color: var(--ink-900);
}
.biz-cat-card .cat-icon {
  font-size: 1.5rem;
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  background: var(--ink-100);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.biz-cat-card .cat-name { font-weight: 500; font-size: .95rem; }
.biz-cat-card .cat-count {
  margin-left: auto;
  font-size: .8rem;
  color: var(--ink-400);
}

/* --- Content Section Spacing --- */
.content-section {
  padding: 2.5rem 0;
}
.content-section:nth-child(even) {
  background: #fff;
}

/* --- Footer --- */
.site-footer {
  background: var(--ink-900);
  color: var(--ink-400);
  padding: 2.5rem 0;
  margin-top: 2rem;
}
.site-footer .footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
}
.site-footer h4 {
  color: var(--ink-200);
  font-size: .9rem;
  font-weight: 600;
  margin-bottom: .75rem;
}
.site-footer a {
  color: var(--ink-500);
  font-size: .85rem;
  display: block;
  margin-bottom: .4rem;
}


/* --- Contact Card (about page) --- */
.contact-card {
  background: var(--warm-cream);
  border-radius: var(--radius-md);
  padding: 2rem;
  margin: 2rem 0;
  text-align: center;
}
.contact-card-header {
  margin-bottom: 1.75rem;
}
.contact-card-header strong {
  font-size: 1.1rem;
  color: var(--ink-900);
}
.contact-card-services {
  display: block;
  font-size: .85rem;
  color: var(--ink-400);
  margin-top: .4rem;
}
.contact-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem 1.5rem;
  text-align: left;
  margin-bottom: 1.75rem;
}
.contact-card-item {
  display: flex;
  flex-direction: column;
  gap: .2rem;
  padding: .75rem 1rem;
  background: rgba(255,255,255,.5);
  border-radius: var(--radius-sm);
}
.contact-card-icon {
  font-size: 1.1rem;
}
.contact-card-label {
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--ink-400);
}
.contact-card-value {
  font-size: .9rem;
  color: var(--ink-700);
  font-weight: 500;
}
.contact-card-value a {
  color: var(--ink-700);
  text-decoration: none;
  transition: color .2s;
}
.contact-card-value a:hover { color: var(--warm-gold); }
.contact-card-cta {
  display: inline-block;
  background: var(--warm-gold);
  color: #fff;
  padding: .75rem 2.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  text-decoration: none;
  font-size: 1.05rem;
  transition: background var(--transition);
}
.contact-card-cta:hover { background: var(--warm-gold-dark); }

@media (max-width: 640px) {
  .contact-card { padding: 1.5rem 1rem; }
  .contact-card-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: .6rem;
  }
  .contact-card-item { padding: .6rem .75rem; }
  .contact-card-value { font-size: .82rem; }
}
.site-footer a:hover { color: var(--warm-gold-light); }
.site-footer .footer-brand {
  font-family: var(--font-serif);
  color: var(--ink-200);
  font-size: 1.1rem;
  margin-bottom: .5rem;
}


/* --- Footer Bar --- */
.site-footer .footer-bar {
  border-top: 1px solid rgba(255,255,255,.08);
  margin-top: 2.5rem;
  padding: 1.75rem 0 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1.5rem;
  line-height: 1.75;
}
.site-footer .footer-bar-col {
  display: flex;
  flex-direction: column;
  gap: .45rem;
}
.site-footer .footer-bar-left  { text-align: left;  }
.site-footer .footer-bar-right { text-align: right; }
.site-footer .footer-bar p { margin: 0; }

/* Left — Brand */
.site-footer .footer-bar-brand {
  font-size: .9rem;
  color: var(--ink-300);
  letter-spacing: .02em;
}
.site-footer .footer-bar-brand strong { color: var(--ink-100); }

/* Left — Legal */
.site-footer .footer-bar-legal {
  font-size: .78rem;
}
.site-footer .footer-bar-legal a {
  font-size: .78rem;
  color: var(--ink-500);
}

/* Right — Contact */
.site-footer .footer-bar-contact {
  font-size: .85rem;
  color: var(--ink-400);
}
.site-footer .footer-bar-contact a {
  font-size: .85rem;
  color: var(--ink-400);
}

/* Right — Meta */
.site-footer .footer-bar-meta {
  font-size: .76rem;
}
.site-footer .footer-bar-meta a {
  font-size: .76rem;
  color: var(--ink-500);
}

/* Shared */
.site-footer .footer-bar a {
  display: inline;
  transition: color .2s;
}
.site-footer .footer-bar a:hover { color: var(--warm-gold-light); }
.site-footer .footer-bar-sep {
  color: var(--ink-700);
  margin: 0 .45rem;
}

@media (max-width: 640px) {
  .site-footer .footer-bar {
    flex-direction: column;
    text-align: center;
    align-items: center;
    gap: .75rem;
    padding: 1.5rem 0 .75rem;
  }
  .site-footer .footer-bar-left,
  .site-footer .footer-bar-right { text-align: center; }
  .site-footer .footer-bar-sep { margin: 0 .3rem; }
  .site-footer .footer-bar-brand { font-size: .82rem; }
  .site-footer .footer-bar-contact,
  .site-footer .footer-bar-contact a { font-size: .78rem; }
  .site-footer .footer-bar-legal,
  .site-footer .footer-bar-legal a { font-size: .74rem; }
  .site-footer .footer-bar-meta,
  .site-footer .footer-bar-meta a { font-size: .72rem; }
}

/* --- Article Page --- */
.article-header {
  padding: 3rem 0 1.5rem;
  background: #fff;
}
.article-header .article-tag {
  display: inline-block;
  font-size: .78rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  background: var(--accent-blue-light);
  color: var(--accent-blue);
}
.article-header h1 {
  font-size: 2.2rem;
  max-width: 720px;
  margin-bottom: .5rem;
}
.article-header .lead {
  font-size: 1.1rem;
  color: var(--ink-500);
  max-width: 680px;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}
.article-meta {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  font-size: .88rem;
  color: var(--ink-500);
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--ink-200);
}
.article-meta .author-link { font-weight: 500; color: var(--ink-700); }
.article-body {
  padding: 2rem 0 3rem;
}
.article-body .container { max-width: 720px; }
.article-body h2 { margin-top: 2.5rem; font-size: 1.4rem; }
.article-body h3 { margin-top: 1.75rem; }
.article-body p { 
  font-size: 1.05rem; 
  line-height: 1.85; 
  color: var(--ink-700);
}
.article-body ul, .article-body ol { 
  padding-left: 1.5rem; 
  margin-bottom: 1rem; 
}
.article-body li { 
  margin-bottom: .4rem; 
  line-height: 1.7;
  color: var(--ink-700);
}

/* FAQ Block */
.faq-block {
  background: var(--warm-cream);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin: 2rem 0;
}
.faq-block h3 { margin-top: 0; margin-bottom: 1.5rem; }
.faq-block details {
  border-bottom: 1px solid var(--ink-200);
  padding: 1rem 0;
}
.faq-block details:first-of-type { padding-top: 0; }
.faq-block details:last-of-type { border-bottom: none; padding-bottom: 0; }
.faq-block summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  color: var(--ink-800);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-block summary::-webkit-details-marker { display: none; }
.faq-block summary::after {
  content: '+';
  font-size: 1.2rem;
  color: var(--ink-400);
  font-weight: 400;
}
.faq-block details[open] summary::after { content: '−'; }
.faq-block details p {
  margin-top: .75rem;
  font-size: .95rem;
  color: var(--ink-600);
  line-height: 1.8;
  padding-right: 2rem;
}

/* References block */
.refs-block {
  background: #fff;
  border: 1px solid var(--ink-200);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin: 2rem 0;
  font-size: .9rem;
}
.refs-block h4 { margin-top: 0; margin-bottom: .75rem; color: var(--ink-500); }
.refs-block ol { padding-left: 1.5rem; }
.refs-block li { margin-bottom: .25rem; color: var(--ink-500); }

/* Tables */
.table-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 1.5rem 0;
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .95rem;
}
.data-table th {
  background: var(--ink-100);
  font-weight: 600;
  text-align: left;
  padding: .75rem 1rem;
  color: var(--ink-700);
  border-bottom: 2px solid var(--ink-200);
}
.data-table td {
  padding: .75rem 1rem;
  border-bottom: 1px solid var(--ink-200);
}

/* Association Page Specific */
.asso-hero {
  padding: 3rem 0 2rem;
  background: #fff;
}
.asso-hero .asso-info {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}
.asso-hero .asso-avatar {
  width: 80px; height: 80px;
  border-radius: var(--radius-lg);
  background: var(--ink-100);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
}
.asso-hero h1 { margin-bottom: .25rem; }
.asso-hero .asso-slogan { color: var(--ink-500); font-size: 1.05rem; margin-bottom: 1rem; }
.asso-stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1rem;
}
.asso-stat {
  text-align: center;
  padding: 1rem;
  background: var(--ink-50);
  border-radius: var(--radius-md);
}
.asso-stat .stat-num {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--ink-900);
}
.asso-stat .stat-label { font-size: .8rem; color: var(--ink-500); margin-top: .25rem; }

/* Tabs */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--ink-200);
  margin-bottom: 1.5rem;
}
.tabs a {
  padding: .75rem 1.5rem;
  font-size: .9rem;
  font-weight: 500;
  color: var(--ink-500);
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
}
.tabs a:hover { color: var(--ink-800); }
.tabs a.active {
  color: var(--ink-900);
  border-bottom-color: var(--ink-900);
}

/* Breadcrumb */
.breadcrumb {
  font-size: .85rem;
  color: var(--ink-400);
  padding: 1rem 0;
}
.breadcrumb a { color: var(--ink-500); }
.breadcrumb a:hover { color: var(--ink-800); }
.breadcrumb span { color: var(--ink-400); margin: 0 .3rem; }

/* AI-friendly semantic markers (hidden visually, for AI crawlers) */
.ai-semantic { display: none; }

/* Responsive */
/* --- Mobile Toggle --- */
.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 110;
}
.hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--ink-700);
  border-radius: 2px;
  transition: all .25s ease;
}

/* --- Mobile Nav Overlay --- */
.mobile-nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.4);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s ease;
}
.mobile-nav-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}
.mobile-nav-panel {
  position: fixed;
  top: 0; right: 0;
  width: min(300px, 80vw);
  height: 100vh;
  background: #fff;
  box-shadow: -4px 0 24px rgba(0,0,0,.12);
  transform: translateX(100%);
  transition: transform .3s ease;
  display: flex;
  flex-direction: column;
}
.mobile-nav-overlay.is-open .mobile-nav-panel {
  transform: translateX(0);
}
.mobile-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--ink-200);
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--ink-900);
}
.mobile-nav-close {
  width: 36px; height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--ink-100);
  border: none;
  border-radius: 50%;
  font-size: 1rem;
  color: var(--ink-600);
  cursor: pointer;
  transition: background .2s;
}
.mobile-nav-close:hover { background: var(--ink-200); }
.mobile-nav-links {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: .5rem 0;
  overflow-y: auto;
}
.mobile-nav-links a {
  display: block;
  padding: .85rem 1.5rem;
  font-size: .95rem;
  color: var(--ink-700);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: all .2s;
}
.mobile-nav-links a:hover,
.mobile-nav-links a.active {
  color: var(--ink-900);
  background: var(--ink-50);
  border-left-color: var(--warm-gold);
}
.mobile-cta {
  margin: 1rem 1.25rem;
  text-align: center;
  padding: .75rem 1.5rem !important;
  font-size: .95rem;
  border: none !important;
  border-radius: var(--radius-sm);
}

@media (max-width: 768px) {
  .mobile-toggle { display: flex; }
  .mobile-nav-overlay { display: block; }
  .site-nav { display: none; }
  .cta-header { display: none; }
  .container, .container-wide { padding: 0 1rem; }
  .site-header .container-wide { height: 56px; }
  .site-logo { font-size: 1rem; }
  .hero { padding: 2.5rem 0 2rem; }
  .hero h1 { font-size: 1.65rem; line-height: 1.35; }
  .hero .subtitle { font-size: .95rem; }
  .hero .cta-group { flex-direction: column; align-items: stretch; gap: .6rem; }
  .hero .cta-group .btn { width: 100%; justify-content: center; }
  .card-grid.col-2, .card-grid.col-3, .card-grid.col-4 { grid-template-columns: 1fr; }
  .card-featured { grid-column: span 1; }
  .article-header h1 { font-size: 1.5rem; }
  .asso-hero .asso-info { flex-direction: column; }
  .section-header { flex-direction: column; gap: .5rem; }
  .site-footer .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; gap: .5rem; text-align: center; }
  .data-table { display: block; max-width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
}

@media (max-width: 480px) {
  .hero { padding: 2rem 0 1.5rem; }
  .hero h1 { font-size: 1.4rem; }
  .asso-wall { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
  .biz-category-grid { grid-template-columns: 1fr 1fr; }
  .site-footer .footer-grid { grid-template-columns: 1fr; }
  .site-footer .footer-bottom { flex-direction: column; }
}

/* ============================================================
   协会详情页 — 完整设计系统
   ============================================================ */

/* --- Hero --- */
.asso-hero {
  padding: 2.5rem 0 2rem;
  background: linear-gradient(135deg, var(--ink-900) 0%, var(--ink-800) 40%, var(--ink-700) 100%);
  color: #fff;
}
.asso-hero-inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}
.asso-hero-avatar {
  width: 80px; height: 80px;
  border-radius: 20px;
  background: rgba(255,255,255,.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}
.asso-hero-avatar img { width: 100%; height: 100%; object-fit: cover; }
.asso-avatar-icon { font-size: 2rem; }
.asso-hero-text { flex: 1; }
.asso-hero-text h1 {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  color: #fff;
  margin: .35rem 0;
}
.asso-slogan {
  font-size: .95rem;
  color: rgba(255,255,255,.7);
  line-height: 1.5;
}
.asso-badges { display: flex; gap: .5rem; flex-wrap: wrap; }
.asso-badge {
  padding: .15rem .6rem;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 600;
}
.asso-badge-type { background: rgba(255,255,255,.15); color: rgba(255,255,255,.9); }
.asso-badge-auth { background: var(--warm-gold); color: #fff; }
.asso-badge-city { background: rgba(255,255,255,.1); color: rgba(255,255,255,.7); }

/* --- Stat Bar --- */
.asso-stat-bar {
  display: flex;
  gap: 0;
  background: rgba(255,255,255,.08);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.asso-stat-item {
  flex: 1;
  text-align: center;
  padding: 1rem .5rem;
  border-right: 1px solid rgba(255,255,255,.08);
}
.asso-stat-item:last-child { border-right: none; }
.asso-stat-num {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--warm-gold-light);
  font-family: var(--font-mono);
}
.asso-stat-label {
  display: block;
  font-size: .75rem;
  color: rgba(255,255,255,.55);
  margin-top: .15rem;
}

/* --- Tabs --- */
.asso-tabs {
  background: #fff;
  border-bottom: 1px solid var(--ink-200);
  position: sticky;
  top: 0;
  z-index: 10;
}
.asso-tab {
  display: inline-block;
  padding: .85rem 1.25rem;
  font-size: .9rem;
  font-weight: 600;
  color: var(--ink-500);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: var(--transition);
}
.asso-tab:hover { color: var(--ink-800); }
.asso-tab.active { color: var(--ink-900); border-bottom-color: var(--warm-gold); }

/* --- Blocks --- */
.asso-block { padding: 3rem 0; }
.asso-block-alt { background: var(--ink-50); }
.asso-section-header {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-bottom: 1.25rem;
}
.asso-section-header h2 { font-size: 1.25rem; margin: 0; }
.asso-count {
  background: var(--ink-100);
  padding: .15rem .6rem;
  border-radius: 999px;
  font-size: .8rem;
  color: var(--ink-500);
  font-weight: 600;
}
.asso-more {
  margin-left: auto;
  font-size: .85rem;
  color: var(--accent-blue);
  text-decoration: none;
  font-weight: 500;
}

/* --- Two-col layout --- */
.asso-two-col {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 2rem;
  align-items: start;
}
.asso-main { min-width: 0; }
.asso-main h2 { font-size: 1.25rem; margin-bottom: 1rem; }
.asso-desc p {
  margin-bottom: .85rem;
  line-height: 1.85;
  color: var(--ink-600);
}

/* --- Sidebar --- */
.asso-sidebar { position: sticky; top: 4rem; }
.asso-info-card {
  background: #fff;
  border: 1px solid var(--ink-200);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}
.asso-info-list { font-size: .88rem; }
.asso-info-list dt {
  font-weight: 600;
  color: var(--ink-500);
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .03em;
  margin-top: .75rem;
}
.asso-info-list dt:first-child { margin-top: 0; }
.asso-info-list dd {
  color: var(--ink-800);
  margin: .15rem 0 0 0;
}
.asso-info-list dd code {
  font-family: var(--font-mono);
  font-size: .75rem;
  background: var(--ink-100);
  padding: .1rem .4rem;
  border-radius: 3px;
  word-break: break-all;
}

/* --- Member Grid --- */
.asso-member-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: .75rem;
}
.asso-member-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: #fff;
  border: 1px solid var(--ink-200);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  transition: var(--transition);
}
.asso-member-card:hover { border-color: var(--warm-gold); box-shadow: var(--shadow-card-hover); }
.asso-member-avatar {
  width: 48px; height: 48px;
  border-radius: var(--radius-sm);
  background: var(--ink-100);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--ink-500);
  flex-shrink: 0;
  overflow: hidden;
}
.asso-member-avatar img { width: 100%; height: 100%; object-fit: cover; }
.asso-member-info { flex: 1; min-width: 0; }
.asso-member-info h3 {
  font-size: .95rem;
  font-family: var(--font-sans);
  margin-bottom: .15rem;
}
.asso-member-industry {
  display: inline-block;
  font-size: .75rem;
  color: var(--accent-blue);
  background: var(--accent-blue-light);
  padding: .05rem .4rem;
  border-radius: 3px;
  margin-right: .35rem;
}
.asso-member-loc { font-size: .75rem; color: var(--ink-400); }
.asso-member-score {
  display: inline-block;
  font-size: .72rem;
  color: var(--accent-green);
  background: var(--accent-green-light);
  padding: .05rem .4rem;
  border-radius: 3px;
  margin-left: .35rem;
  font-weight: 600;
}

/* --- News Grid --- */
.asso-news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
}
.asso-news-card {
  display: block;
  background: #fff;
  border: 1px solid var(--ink-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}
.asso-news-card:hover { border-color: var(--accent-blue); box-shadow: var(--shadow-card-hover); }
.asso-news-cover { height: 160px; background: var(--ink-100); overflow: hidden; }
.asso-news-cover img { width: 100%; height: 100%; object-fit: cover; }
.asso-news-body { padding: 1rem 1.25rem; }
.asso-news-body time {
  font-size: .75rem;
  color: var(--ink-400);
}
.asso-news-body h3 {
  font-size: .95rem;
  margin: .35rem 0;
  font-family: var(--font-sans);
  line-height: 1.5;
}
.asso-news-body p {
  font-size: .82rem;
  color: var(--ink-500);
  line-height: 1.6;
}

/* --- Service Grid --- */
.asso-service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}
.asso-service-card {
  background: #fff;
  border: 1px solid var(--ink-200);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: var(--transition);
}
.asso-service-card:hover { border-color: var(--warm-gold); }
.asso-service-icon { font-size: 1.5rem; margin-bottom: .75rem; }
.asso-service-card h3 { font-size: 1rem; font-family: var(--font-sans); margin-bottom: .5rem; }
.asso-service-card p { font-size: .85rem; color: var(--ink-500); line-height: 1.6; margin-bottom: .75rem; }
.asso-service-link {
  font-size: .82rem;
  color: var(--accent-blue);
  text-decoration: none;
  font-weight: 600;
}

/* --- Contact Grid --- */
.asso-contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1rem;
}
.asso-contact-card {
  background: #fff;
  border: 1px solid var(--ink-200);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}
.asso-contact-card h3 { font-size: 1rem; font-family: var(--font-sans); margin-bottom: .75rem; }
.asso-contact-card p { font-size: .9rem; color: var(--ink-600); }
.asso-contact-card a { color: var(--accent-blue); text-decoration: none; }

/* --- CTA --- */
.asso-cta {
  padding: 4rem 0;
  background: linear-gradient(135deg, var(--warm-gold-subtle) 0%, var(--warm-cream) 100%);
}
.asso-cta h2 { font-size: 1.5rem; }
.asso-cta .btn-lg { padding: .85rem 2.5rem; font-size: 1rem; }

/* --- Empty State --- */
.asso-empty {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--ink-400);
}

/* ====== P1-9: Tier对比表 ====== */
.tier-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  max-width: 960px;
  margin: 0 auto;
}
.tier-card {
  background: #fff;
  border: 1px solid var(--ink-200);
  border-radius: 12px;
  padding: 2rem 1.5rem;
  text-align: center;
  position: relative;
  transition: transform .2s, box-shadow .2s;
}
.tier-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,.08); }
.tier-highlight {
  border-color: var(--warm-gold);
  box-shadow: 0 4px 20px rgba(184,148,74,.15);
}
.tier-badge {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--warm-gold); color: #fff; font-size: .78rem;
  font-weight: 700; padding: 4px 16px; border-radius: 20px;
}
.tier-name { font-size: 1.15rem; font-weight: 700; color: var(--ink-800); margin-bottom: .5rem; }
.tier-price { font-size: 1.5rem; font-weight: 800; color: var(--ink-900); margin-bottom: 1.25rem; }
.tier-features {
  list-style: none; padding: 0; margin: 0 0 1.5rem; text-align: left;
}
.tier-features li {
  padding: .45rem 0; font-size: .88rem; color: var(--ink-600);
  border-bottom: 1px solid var(--ink-100);
}
.tier-features li:last-child { border-bottom: none; }
.tier-cta { width: 100%; display: block; text-align: center; }

/* ====== P1-9: 客户案例 ====== */
.case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  max-width: 960px;
  margin: 0 auto;
}
.case-card {
  background: #fff;
  border: 1px solid var(--ink-150);
  border-radius: 12px;
  padding: 1.5rem;
  transition: transform .2s;
}
.case-card:hover { transform: translateY(-2px); }
.case-icon { font-size: 2rem; margin-bottom: .75rem; }
.case-title { font-size: 1rem; font-weight: 700; color: var(--ink-800); margin-bottom: .5rem; }
.case-desc { font-size: .85rem; color: var(--ink-500); line-height: 1.6; margin-bottom: .75rem; }
.case-stat {
  font-size: .78rem; color: var(--warm-gold); font-weight: 700;
  background: var(--warm-cream); display: inline-block; padding: 3px 10px;
  border-radius: 4px;
}

/* ====== P1-9: AI可见度检测 ====== */
.ai-check-form { background: #fff; border: 1px solid var(--ink-200); border-radius: 12px; padding: 1.5rem; }
.check-fields { display: flex; gap: .75rem; flex-wrap: wrap; }
.check-input {
  flex: 1; min-width: 140px;
  padding: .75rem 1rem; border: 1px solid var(--ink-300);
  border-radius: 8px; font-size: .9rem; font-family: inherit;
  outline: none; transition: border .2s;
}
.check-input:focus { border-color: var(--warm-gold); }
.check-btn { white-space: nowrap; }
.check-result {
  margin-top: 1.25rem; padding: 1.25rem;
  border-radius: 8px; font-size: .9rem; line-height: 1.7;
  animation: fadeIn .3s ease;
}
.check-result.good { background: #e8f6ee; border: 1px solid #b8dcc8; color: #2d6a4f; }
.check-result.ok { background: #fff8e1; border: 1px solid #ffe082; color: #8d6e00; }
.check-result.bad { background: #fbeaea; border: 1px solid #f5c6c6; color: #8b3333; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* --- Responsive --- */
@media (max-width: 768px) {
  .asso-hero-inner { flex-direction: column; text-align: center; }
  .asso-badges { justify-content: center; }
  .asso-stat-bar { flex-wrap: wrap; }
  .asso-stat-item { flex: 1 1 40%; border-bottom: 1px solid rgba(255,255,255,.08); }
  .asso-two-col { grid-template-columns: 1fr; }
  .asso-sidebar { position: static; }
  .asso-member-grid { grid-template-columns: 1fr; }
  .asso-news-grid { grid-template-columns: 1fr; }
  .asso-tab { padding: .75rem .9rem; font-size: .82rem; }
}

@media (max-width: 480px) {
  .asso-hero-text h1 { font-size: 1.35rem; }
  .asso-stat-item { flex: 1 1 50%; }
  .asso-stat-num { font-size: 1.2rem; }
  .asso-contact-grid { grid-template-columns: 1fr; }
  .asso-service-grid { grid-template-columns: 1fr; }
}