/* ============================================
   海南灰鲸搜擎有限公司 - 官网样式
   Professional Enterprise Style
   ============================================ */

/* Google Fonts 已移至 HTML <link> 异步加载，不在此 @import 以免阻塞渲染 */

/* ========== Variables ========== */
:root {
  --bg: #070E1A;
  --bg-alt: #0C1525;
  --bg-card: #111C2E;
  --bg-card-hover: #162438;
  --brand: #3B82F6;
  --brand-light: #60A5FA;
  --geo: #06B6D4;
  --geo-light: #22D3EE;
  --text: #E8EDF4;
  --text-2: #8B9AB5;
  --text-3: #5B6A82;
  --border: rgba(255,255,255,0.06);
  --border-hover: rgba(255,255,255,0.12);
  --gold: #E5A530;
  --green: #10B981;
  --red: #EF4444;
  --font: 'Noto Sans SC', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-en: 'Inter', -apple-system, sans-serif;
  --radius: 8px;
  --radius-lg: 12px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  /* Aliases for backward compatibility */
  --card: var(--bg-card);
  --primary: var(--brand);
  --muted: var(--text-2);
  --sub: var(--text-3);
  --text-1: var(--text);
}

/* ========== Reset ========== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.75; overflow-x: hidden; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
::selection { background: var(--brand); color: #fff; }

/* ========== Utility ========== */
.container { width: 100%; max-width: 1320px; margin: 0 auto; padding: 0 40px; }
.section { padding: 100px 0; position: relative; }
.section-alt { background: var(--bg-alt); }

.section-head { margin-bottom: 56px; }
.section-head { text-align: center; }
.section-eyebrow { font-family: var(--font-en); font-size: 12px; font-weight: 600; letter-spacing: 3px; text-transform: uppercase; color: var(--brand-light); margin-bottom: 16px; }
.section-title { font-size: 36px; font-weight: 700; letter-spacing: -0.3px; line-height: 1.3; margin-bottom: 16px; text-align: center; }
.section-desc { font-size: 15px; color: var(--text-2); max-width: 560px; line-height: 1.8; }
.section-head .section-desc { margin: 0 auto; }
.section-en { text-align: center; }

.highlight { color: var(--brand-light); }

/* ========== Buttons ========== */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 10px 24px; border-radius: var(--radius); font-size: 14px; font-weight: 500; cursor: pointer; transition: all 0.2s var(--ease); border: none; white-space: nowrap; }
.btn-primary { background: var(--brand); color: #fff; font-weight: 600; box-shadow: 0 4px 20px rgba(59,130,246,0.3); }
.btn-primary:hover { background: var(--brand-light); box-shadow: 0 6px 24px rgba(59,130,246,0.4); transform: translateY(-1px); }
.btn-primary:hover { background: #2563EB; }
.btn-ghost { background: transparent; color: var(--text-2); border: 1px solid var(--border-hover); }
.btn-ghost:hover { border-color: var(--brand); color: var(--brand-light); }
.btn-sm { padding: 7px 18px; font-size: 13px; }

/* ========== Navbar ========== */
.navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; padding: 0; transition: background 0.3s, box-shadow 0.3s; }
.navbar.scrolled { background: rgba(7, 14, 26, 0.92); backdrop-filter: blur(12px); box-shadow: 0 1px 0 var(--border); }
.navbar-inner { display: flex; align-items: center; height: 64px; }
.navbar-brand { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 16px; flex-shrink: 0; }
.brand-text { display: flex; align-items: baseline; gap: 6px; }
.brand-zh { font-size: 16px; font-weight: 600; }
.brand-en { font-family: var(--font-en); font-size: 12px; color: var(--text-3); font-weight: 500; letter-spacing: 0.5px; }

.navbar-right { display: flex; align-items: center; gap: 10px; margin-left: auto; flex-shrink: 0; }
.navbar-menu { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.navbar-menu > li > a { padding: 8px 14px; font-size: 14px; color: var(--text-2); border-radius: 6px; transition: all 0.2s; display: flex; align-items: center; gap: 4px; }
.navbar-menu > li > a:hover, .navbar-menu > li > a.active { color: var(--text); background: rgba(255,255,255,0.04); }
.navbar-menu > li > a.active { color: #fff; }

.has-dropdown { position: relative; }
.dropdown-arrow { width: 12px; height: 12px; transition: transform 0.2s; }
.has-dropdown:hover .dropdown-arrow { transform: rotate(180deg); }
.dropdown-menu { position: absolute; top: 100%; left: 0; min-width: 200px; background: rgba(12, 21, 37, 0.96); backdrop-filter: blur(16px); border: 1px solid var(--border-hover); border-radius: var(--radius-lg); padding: 8px; opacity: 0; visibility: hidden; transform: translateY(4px); transition: all 0.2s var(--ease); box-shadow: 0 16px 48px rgba(0,0,0,0.4); }
.has-dropdown:hover .dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown-menu a { display: flex; flex-direction: column; gap: 2px; padding: 10px 14px; border-radius: 6px; font-size: 13px; color: var(--text-2); transition: all 0.15s; }
.dropdown-menu a:hover { background: rgba(255,255,255,0.05); color: var(--text); }
.dropdown-label { font-family: var(--font-en); font-size: 11px; color: var(--text-3); letter-spacing: 0.5px; }

/* Hamburger Button */
.mobile-toggle { display: none; flex-direction: column; justify-content: center; align-items: center; width: 44px; height: 44px; border: none; background: rgba(255,255,255,0.06); border-radius: 10px; cursor: pointer; padding: 0; gap: 5px; flex-shrink: 0; margin-left: 8px; transition: background 0.2s; -webkit-tap-highlight-color: transparent; }
.mobile-toggle:hover { background: rgba(255,255,255,0.1); }
.hamburger-line { display: block; width: 20px; height: 2px; background: var(--text); border-radius: 2px; transition: all 0.3s var(--ease); transform-origin: center; }
.mobile-toggle.active .hamburger-line:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-toggle.active .hamburger-line:nth-child(2) { opacity: 0; transform: scaleX(0); }
.mobile-toggle.active .hamburger-line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Overlay */
.mobile-overlay { display: none; position: fixed; inset: 0; top: 56px; background: rgba(0,0,0,0.5); z-index: 998; opacity: 0; transition: opacity 0.3s; -webkit-tap-highlight-color: transparent; }
.mobile-overlay.open { display: block; opacity: 1; }

/* Language Switcher */
.lang-switch { display: flex; align-items: center; gap: 2px; background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1); border-radius: 6px; padding: 3px; }
.lang-switch span, .lang-btn { padding: 4px 10px; font-size: 12px; font-family: var(--font-en); font-weight: 500; color: var(--text-3); background: none; border: none; border-radius: 4px; cursor: pointer; transition: all 0.15s; white-space: nowrap; -webkit-tap-highlight-color: transparent; }
.lang-switch span.active, .lang-btn.active { color: #fff; background: rgba(255,255,255,0.12); }
.lang-switch span:hover, .lang-btn:hover { color: var(--text-2); }

/* Mobile CTA - hidden on desktop */
.mobile-cta-item { display: none; }

/* ========== Hero ========== */
.hero { position: relative; min-height: 100vh; display: flex; align-items: flex-start; justify-content: center; padding-top: 64px; overflow: hidden; }
.hero canvas { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.hero-inner { position: relative; z-index: 1; display: flex; align-items: flex-start; justify-content: space-between; gap: 60px; padding: 40px 0 60px; }
.hero-left { flex: 1; min-width: 0; }
.hero-right { flex: 0 0 380px; display: flex; flex-direction: column; align-items: center; gap: 24px; padding-top: 16px; }

.hero-partners { text-align: center; margin-top: 24px; }
.partner-label { font-size: 11px; letter-spacing: 2px; text-transform: uppercase; color: #64748B; display: block; margin-bottom: 10px; }
.partner-logos { display: flex; align-items: center; justify-content: center; gap: 6px; }
.partner-name { font-size: 14px; font-weight: 600; color: #94A3B8; font-family: var(--font-en); }
.partner-dot { color: #475569; font-size: 18px; line-height: 1; }
.hero-eyebrow { display: inline-block; font-family: var(--font-en); font-size: 14px; font-weight: 600; letter-spacing: 3px; text-transform: uppercase; color: var(--geo-light); margin-bottom: 28px; padding: 6px 16px; background: rgba(6,182,212,0.08); border: 1px solid rgba(6,182,212,0.2); border-radius: 4px; }
.hero-title { font-size: 56px; font-weight: 700; line-height: 1.15; letter-spacing: -0.5px; }
.hero-title .highlight { background: linear-gradient(135deg, var(--brand-light), var(--geo-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-desc { font-size: 17px; color: #CBD5E1; line-height: 1.9; margin-top: 24px; max-width: 560px; }
.hero-actions { display: flex; gap: 16px; align-items: center; }
.btn-ghost { padding: 13px 28px; border-radius: var(--radius); border: 1.5px solid rgba(255,255,255,0.2); color: #fff; font-size: 15px; font-weight: 500; background: rgba(255,255,255,0.04); transition: all 0.2s; text-decoration: none; }
.btn-ghost:hover { border-color: rgba(255,255,255,0.4); background: rgba(255,255,255,0.08); }
.hero-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; width: 100%; }
.hero-metrics .metric { text-align: center; padding: 24px 16px; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); border-radius: 14px; }
.hero-metrics .metric-val { display: block; font-family: var(--font-en); font-size: 40px; font-weight: 700; color: #fff; line-height: 1; }
.hero-metrics .metric-suffix { font-size: 22px; font-weight: 500; color: var(--geo); }
.hero-metrics .metric-label { display: block; font-size: 13px; color: var(--text-2); margin-top: 10px; font-weight: 400; }

/* ========== Service Cards ========== */
.svc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.svc-card { display: flex; flex-direction: column; gap: 12px; padding: 32px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); transition: all 0.25s var(--ease); }
.svc-card:hover { border-color: var(--border-hover); background: var(--bg-card-hover); transform: translateY(-2px); }
.svc-card h3 { font-size: 18px; font-weight: 600; line-height: 1.4; }
.svc-card p { font-size: 14px; color: var(--text-2); line-height: 1.7; flex: 1; }
.svc-link { font-size: 13px; color: var(--brand-light); font-weight: 500; }
.svc-card-geo { border-color: rgba(6,182,212,0.25); background: linear-gradient(135deg, var(--bg-card) 0%, rgba(6,182,212,0.06) 100%); }
.svc-card-geo:hover { border-color: rgba(6,182,212,0.4); }
.svc-card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.svc-tag { font-family: var(--font-en); font-size: 11px; font-weight: 600; letter-spacing: 1px; padding: 3px 10px; border-radius: 20px; background: rgba(6,182,212,0.15); color: var(--geo-light); }

/* ========== GEO Section ========== */
.geo-section { background: linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%); }
.geo-split { display: flex; gap: 80px; align-items: flex-start; }
.geo-split-left { max-width: 520px; flex-shrink: 0; }
.geo-split-left .section-title { text-align: left; }
.geo-split-left .section-en { text-align: left; }
.geo-split-left .section-desc { margin-top: 16px; }
.geo-features { margin-top: 32px; display: flex; flex-direction: column; gap: 20px; }
.geo-feat { display: flex; gap: 14px; align-items: flex-start; }
.geo-feat-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--geo); margin-top: 7px; flex-shrink: 0; }
.geo-feat strong { font-size: 15px; font-weight: 600; display: block; }
.geo-feat p { font-size: 13px; color: var(--text-3); margin-top: 2px; }

.compare-panel { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.compare-col { padding: 28px; border-radius: var(--radius-lg); border: 1px solid var(--border); }
.compare-label { font-size: 13px; font-weight: 600; letter-spacing: 1px; margin-bottom: 20px; padding-bottom: 12px; border-bottom: 1px solid var(--border); }
.compare-seo .compare-label { color: var(--red); border-color: rgba(239,68,68,0.2); }
.compare-geo .compare-label { color: var(--geo); border-color: rgba(6,182,212,0.2); }
.compare-seo { background: rgba(239,68,68,0.03); }
.compare-geo { background: rgba(6,182,212,0.04); }
.compare-col ul { display: flex; flex-direction: column; gap: 10px; }
.compare-col li { font-size: 14px; color: var(--text-2); padding-left: 16px; position: relative; }
.compare-seo li::before { content: ''; position: absolute; left: 0; top: 9px; width: 6px; height: 6px; border-radius: 50%; background: rgba(239,68,68,0.4); }
.compare-geo li::before { content: ''; position: absolute; left: 0; top: 9px; width: 6px; height: 6px; border-radius: 50%; background: rgba(6,182,212,0.6); }

/* ========== Stats Band ========== */
.stats-band { display: flex; align-items: center; justify-content: center; gap: 0; }
.stat-block { text-align: center; padding: 24px 40px; }
.stat-num { display: block; font-family: var(--font-en); font-size: 32px; font-weight: 700; color: #fff; line-height: 1; }
.stat-plus { font-size: 20px; font-weight: 500; color: var(--gold); }
.stat-text { display: block; font-size: 13px; color: var(--text-3); margin-top: 8px; }
.stat-divider { width: 1px; height: 40px; background: var(--border-hover); }

/* ========== About ========== */
.about-layout { display: flex; gap: 80px; align-items: flex-start; }
.about-main { max-width: 560px; }
.about-main .section-title { text-align: left; }
.about-main .section-eyebrow { margin-bottom: 12px; }
.about-main .section-title { margin-bottom: 24px; }
.about-main p { font-size: 15px; color: var(--text-2); margin-bottom: 16px; line-height: 1.8; }
.about-main .btn { margin-top: 16px; }

.about-side { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; flex-shrink: 0; }
.about-kv { padding: 28px 24px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); text-align: center; }
.about-kv-num { font-family: var(--font-en); font-size: 36px; font-weight: 700; color: var(--gold); line-height: 1; }
.about-kv-unit { font-size: 22px; font-weight: 500; }
.about-kv-text { font-size: 13px; color: var(--text-3); margin-top: 8px; }

/* ========== News ========== */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.news-card { display: flex; flex-direction: column; gap: 8px; padding: 28px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); transition: all 0.25s var(--ease); }
.news-card:hover { border-color: var(--border-hover); transform: translateY(-2px); }
.news-cat { font-family: var(--font-en); font-size: 11px; font-weight: 600; letter-spacing: 1px; color: var(--brand-light); text-transform: uppercase; }
.news-card h3 { font-size: 16px; font-weight: 600; line-height: 1.5; }
.news-card p { font-size: 14px; color: var(--text-2); line-height: 1.7; flex: 1; }
.news-date { font-size: 12px; color: var(--text-3); }
.news-loading { grid-column: 1 / -1; text-align: center; color: var(--text-3); padding: 40px; }
/* ========== News Cards (Homepage + News Page) ========== */
.news-card-new {
  display: flex; flex-direction: column;
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; overflow: hidden;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.news-card-new:hover {
  transform: translateY(-4px); border-color: var(--border-hover);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
.news-card-img {
  width: 100%; aspect-ratio: 16/9; overflow: hidden; background: var(--bg-alt);
}
.news-card-img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.4s ease;
}
.news-card-new:hover .news-card-img img { transform: scale(1.05); }
.news-card-placeholder {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-3);
}
.news-card-placeholder svg { width: 40px; height: 40px; opacity: 0.4; }
.news-card-body { padding: 20px 22px 18px; flex: 1; display: flex; flex-direction: column; }
.news-card-tag {
  display: inline-block; font-size: 11px; font-weight: 600;
  letter-spacing: 1px; text-transform: uppercase;
  color: var(--brand); background: rgba(59,130,246,0.1);
  padding: 3px 10px; border-radius: 4px; margin-bottom: 10px; width: fit-content;
}
.news-card-body h3 {
  font-size: 17px; font-weight: 600; color: var(--text-1);
  line-height: 1.45; margin-bottom: 8px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.news-card-body .summary {
  font-size: 13px; color: var(--text-3); line-height: 1.6;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  margin-bottom: 14px; flex: 1;
}
.news-card-footer {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px; color: var(--text-3);
}
.news-card-read { color: var(--brand); font-weight: 500; }
.news-card-new:hover .news-card-read { text-decoration: underline; }
.article-cover { width: 100%; max-height: 320px; object-fit: cover; border-radius: var(--radius-md); margin-bottom: 20px; }

/* ========== CTA ========== */
.cta-section { padding: 80px 0; background: linear-gradient(135deg, #0C1D3A 0%, #0A1628 100%); }
.cta-inner { text-align: center; max-width: 640px; margin: 0 auto; }
.cta-inner h2 { font-size: 32px; font-weight: 700; margin-bottom: 16px; }
.cta-inner p { font-size: 15px; color: var(--text-2); margin-bottom: 32px; }
.cta-actions { display: flex; justify-content: center; gap: 12px; }

/* ========== Footer ========== */
.footer { padding: 60px 0 0; border-top: 1px solid var(--border); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
.footer-grid-faq { grid-template-columns: 3fr 1fr 1fr 1fr; }
.footer-brand { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 15px; margin-bottom: 12px; }
.footer-desc { font-size: 13px; color: var(--text-3); line-height: 1.7; max-width: 260px; }
.footer-col h4 { font-size: 13px; font-weight: 600; color: var(--text-2); margin-bottom: 16px; letter-spacing: 0.5px; }
.footer-col ul { display: flex; flex-direction: column; gap: 8px; }
.footer-col li { font-size: 13px; color: var(--text-3); }
.footer-col li a:hover { color: var(--text-2); }
.footer-bottom { display: flex; justify-content: space-between; padding: 24px 0; margin-top: 40px; border-top: 1px solid var(--border); font-size: 12px; color: var(--text-3); }

/* Footer FAQ */
.footer-faq-item { border-bottom: 1px solid rgba(255,255,255,0.06); }
.footer-faq-q { display: flex; justify-content: space-between; align-items: flex-start; padding: 10px 0; cursor: pointer; font-size: 13px; color: var(--text-2); line-height: 1.5; transition: color .2s; gap: 8px; }
.footer-faq-q:hover { color: var(--text-1); }
.footer-faq-q::after { content: '+'; flex-shrink: 0; font-size: 14px; color: var(--text-3); transition: transform .3s; margin-top: 1px; }
.footer-faq-item.active .footer-faq-q::after { content: '−'; transform: rotate(180deg); }
.footer-faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; font-size: 12px; color: var(--text-3); line-height: 1.7; }
.footer-faq-item.active .footer-faq-a { max-height: 300px; padding-bottom: 10px; }

/* ========== Fade In Animation ========== */
.fade-in { opacity: 1; transform: none; transition: opacity 0.6s var(--ease), transform 0.6s var(--ease); }
/* JS 未加载时内容始终可见；JS 加载后通过 .js-ready 启用动画 */
html.js-ready .fade-in { opacity: 0; transform: translateY(20px); }
html.js-ready .fade-in.visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  html.js-ready .fade-in { opacity: 1; transform: none; transition: none; }
}

/* noscript 兜底：确保无JS时页面仍然可读 */
noscript .fade-in { opacity: 1 !important; transform: none !important; }

/* ========== Page Hero (Sub Pages) ========== */
.page-hero { padding: 160px 0 80px; text-align: center; background: linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%); }
.page-hero-title { font-size: 40px; font-weight: 700; margin-bottom: 16px; }
.page-hero-desc { font-size: 16px; color: var(--text-2); max-width: 560px; margin: 0 auto; line-height: 1.8; }

/* Stats Row (Sub Pages) */
.stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 40px; }
.stats-row .stat-item { text-align: center; padding: 24px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); }
.stats-row .stat-num { display: block; font-family: var(--font-en); font-size: 32px; font-weight: 700; color: var(--gold); line-height: 1; }
.stats-row .stat-label { display: block; font-size: 13px; color: var(--text-3); margin-top: 8px; }

/* Service Detail Layout (Sub Pages) */
.sdf-item { display: flex; gap: 48px; align-items: flex-start; padding: 48px 0; border-bottom: 1px solid var(--border); }
.sdf-item:last-child { border-bottom: none; }
.sdf-icon { width: 56px; height: 56px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); }
.sdf-icon svg { width: 28px; height: 28px; }
.sdf-body { flex: 1; }
.sdf-body h3 { font-size: 20px; font-weight: 600; margin-bottom: 8px; }
.sdf-body p { font-size: 14px; color: var(--text-2); line-height: 1.7; }
.service-detail-en { font-family: var(--font-en); font-size: 12px; color: var(--text-3); letter-spacing: 1px; text-transform: uppercase; margin-bottom: 4px; }
.service-detail-features { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.service-detail-features span { font-size: 12px; padding: 4px 12px; background: rgba(59,130,246,0.08); color: var(--brand-light); border-radius: 20px; }

/* Advantages Grid (Sub Pages) */
.advantages-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.adv-card { padding: 28px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); }
.adv-card h3 { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.adv-card p { font-size: 14px; color: var(--text-2); line-height: 1.7; }
.adv-icon { width: 40px; height: 40px; margin-bottom: 16px; }

/* Process Steps */
.process-steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.process-step { text-align: center; padding: 24px 16px; position: relative; }
.step-num { font-family: var(--font-en); font-size: 28px; font-weight: 700; color: var(--brand); line-height: 1; margin-bottom: 12px; }
.step-title { font-size: 14px; font-weight: 600; margin-bottom: 6px; }
.step-desc { font-size: 12px; color: var(--text-3); line-height: 1.6; }
.step-line { position: absolute; top: 36px; right: -8px; width: 16px; height: 2px; background: var(--border-hover); }
.process-step:last-child .step-line { display: none; }

/* GEO Methodology */
.methodology-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.method-card { padding: 32px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); }
.method-card.geo-card { border-color: rgba(6,182,212,0.2); background: linear-gradient(135deg, var(--bg-card) 0%, rgba(6,182,212,0.04) 100%); }
.method-num { font-family: var(--font-en); font-size: 40px; font-weight: 700; color: var(--brand); line-height: 1; margin-bottom: 16px; }
.geo-card .method-num { color: var(--geo); }
.method-card h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.method-card p { font-size: 14px; color: var(--text-2); line-height: 1.7; }
.method-list { margin-top: 12px; display: flex; flex-direction: column; gap: 6px; }
.method-list li { font-size: 13px; color: var(--text-3); padding-left: 14px; position: relative; }
.method-list li::before { content: ''; position: absolute; left: 0; top: 8px; width: 5px; height: 5px; border-radius: 50%; background: var(--geo); }

/* Comparison Table */
.comparison-table { width: 100%; border-collapse: collapse; margin-top: 20px; }
.comparison-table th { text-align: left; font-size: 13px; font-weight: 600; padding: 14px 16px; border-bottom: 2px solid var(--border-hover); color: var(--text-2); }
.comparison-table td { padding: 12px 16px; border-bottom: 1px solid var(--border); font-size: 14px; color: var(--text-2); }

/* Contact Page - Enhanced */
.contact-layout { display: grid; grid-template-columns: 1.3fr 1fr; gap: 48px; align-items: start; }
.contact-form-wrap { padding: 36px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); position: relative; overflow: hidden; }
.contact-form-wrap::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--brand), var(--geo)); }
.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 13px; font-weight: 500; color: var(--text-2); display: flex; align-items: center; gap: 6px; }
.form-group label .required { color: #EF4444; font-size: 12px; }
.form-group input, .form-group textarea, .form-group select { padding: 12px 16px; background: rgba(255,255,255,0.03); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); font-size: 14px; font-family: var(--font); outline: none; transition: all 0.25s; }
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(59,130,246,0.12); background: rgba(255,255,255,0.05); }
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text-3); }
.form-group textarea { resize: vertical; min-height: 120px; line-height: 1.7; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.contact-info-wrap { display: flex; flex-direction: column; gap: 20px; }
.contact-cards { display: flex; flex-direction: column; gap: 16px; }
.contact-card { padding: 24px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); transition: all 0.25s; display: flex; align-items: flex-start; gap: 16px; }
.contact-card:hover { border-color: var(--border-hover); transform: translateY(-2px); }
.contact-card-icon { width: 44px; height: 44px; flex-shrink: 0; background: rgba(59,130,246,0.08); border-radius: 10px; display: flex; align-items: center; justify-content: center; }
.contact-card-icon svg { width: 22px; height: 22px; }
.contact-card-text h4 { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.contact-card-text p { font-size: 13px; color: var(--text-3); line-height: 1.6; }
.contact-card-text a { color: var(--brand); text-decoration: none; }
.contact-card-text a:hover { text-decoration: underline; }

/* FAQ Enhanced */
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; transition: border-color 0.25s; background: var(--bg-card); }
.faq-item:hover { border-color: var(--border-hover); }
.faq-item.open { border-color: var(--brand); }
.faq-btn { font-family: inherit; border-radius: 0; transition: background 0.2s; }
.faq-btn:hover { background: rgba(255,255,255,0.02) !important; }
.faq-q { padding: 20px 24px; font-size: 15px; font-weight: 500; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.faq-q::after { content: '+'; font-size: 20px; color: var(--text-3); transition: transform 0.3s; flex-shrink: 0; }
.faq-item.open .faq-q::after { transform: rotate(45deg); color: var(--brand); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.35s var(--ease); }
.faq-a-inner { padding: 0 24px 20px; font-size: 14px; color: var(--text-2); line-height: 1.9; }
.faq-item.open .faq-a { max-height: 300px; }

/* Contact success animation */
.contact-success { text-align: center; padding: 48px 24px; }
.contact-success-icon { width: 64px; height: 64px; border-radius: 50%; background: rgba(34,197,94,0.1); display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; }
.contact-success-icon svg { width: 32px; height: 32px; color: var(--green); }

/* Compare Cards */
.compare-cards { display: grid; grid-template-columns: 1fr auto 1fr; gap: 0; align-items: stretch; }
.compare-side { padding: 36px 32px; border-radius: var(--radius-lg); border: 1px solid var(--border); }
.compare-seo { background: rgba(239,68,68,0.03); border-color: rgba(239,68,68,0.15); }
.compare-geo { background: rgba(6,182,212,0.06); border-color: rgba(6,182,212,0.25); }
.compare-side-header { display: flex; align-items: center; gap: 14px; margin-bottom: 28px; padding-bottom: 20px; border-bottom: 1px solid var(--border); }
.compare-side-icon { width: 44px; height: 44px; border-radius: 12px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.compare-side h3 { font-size: 20px; font-weight: 700; color: var(--text); }
.compare-side-sub { font-size: 13px; color: var(--text-3); margin-top: 2px; }
.compare-features { display: flex; flex-direction: column; gap: 16px; }
.compare-feat { display: flex; align-items: center; gap: 10px; font-size: 15px; color: var(--text-2); }
.compare-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.compare-vs { display: flex; align-items: center; justify-content: center; padding: 0 16px; }
.compare-vs-circle { width: 48px; height: 48px; border-radius: 50%; background: var(--bg-card); border: 2px solid var(--border); display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 14px; color: var(--text-3); }

/* Compare Table (legacy) */
.compare-table { overflow-x: auto; }
.compare-table table { width: 100%; border-collapse: collapse; }
.compare-table th, .compare-table td { padding: 16px 20px; text-align: left; border-bottom: 1px solid var(--border); font-size: 14px; color: var(--text-2); }
.compare-table th { font-weight: 600; font-size: 16px; padding: 20px; }
.compare-table thead tr { border-bottom: 2px solid var(--border); }
.compare-table tbody tr:hover { background: rgba(255,255,255,0.02); }
.faq-a-inner { padding: 0 0 20px; font-size: 14px; color: var(--text-2); line-height: 1.8; }
.faq-item.open .faq-a { max-height: 300px; }

/* Strength */
.cert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.cert-card { padding: 24px; text-align: center; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); }
.cert-card h4 { font-size: 14px; font-weight: 600; margin-top: 12px; }
.cert-card p { font-size: 12px; color: var(--text-3); margin-top: 4px; }

.globe-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.globe-card { padding: 24px; text-align: center; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); }
.globe-card h4 { font-size: 14px; font-weight: 600; }
.globe-card p { font-size: 12px; color: var(--text-3); margin-top: 4px; }

.mv-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.mv-card { padding: 32px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); }
.mv-card h3 { font-size: 18px; font-weight: 600; margin-bottom: 12px; }
.mv-card p { font-size: 14px; color: var(--text-2); line-height: 1.7; }

/* Admin */
.admin-topbar { display: flex; align-items: center; justify-content: space-between; padding: 16px 24px; background: var(--bg-alt); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; }
.admin-table-wrap { overflow-x: auto; margin-top: 20px; }
.admin-table { width: 100%; border-collapse: collapse; }
.admin-table th { text-align: left; font-size: 12px; font-weight: 600; color: var(--text-3); padding: 12px; border-bottom: 1px solid var(--border-hover); letter-spacing: 0.5px; text-transform: uppercase; }
.admin-table td { padding: 14px 12px; border-bottom: 1px solid var(--border); font-size: 14px; }
.admin-cat { font-size: 11px; padding: 3px 8px; border-radius: 12px; background: rgba(59,130,246,0.1); color: var(--brand-light); }
.admin-status { font-size: 11px; padding: 3px 8px; border-radius: 12px; }
.admin-status.pub, .admin-status.published { background: rgba(16,185,129,0.1); color: #10b981; }
.admin-status.draft { background: rgba(245,158,11,0.1); color: #f59e0b; }
.admin-btn { padding: 6px 12px; font-size: 12px; border-radius: 4px; border: none; cursor: pointer; margin-right: 4px; transition: all 0.15s; }
.admin-btn.edit { background: rgba(59,130,246,0.1); color: var(--brand-light); }
.admin-btn.edit:hover { background: rgba(59,130,246,0.2); }
.admin-btn.del { background: rgba(239,68,68,0.1); color: #ef4444; }
.admin-btn.del:hover { background: rgba(239,68,68,0.2); }
.admin-btn-edit { background: rgba(59,130,246,0.1); color: var(--brand-light); }
.admin-btn-del { background: rgba(239,68,68,0.1); color: #ef4444; }

/* Admin Form */
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 13px; font-weight: 500; color: var(--text-2); margin-bottom: 6px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 10px 14px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--bg); color: var(--text-1); font-size: 14px; font-family: inherit;
  transition: border-color 0.2s; outline: none; box-sizing: border-box;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--brand); box-shadow: 0 0 0 2px rgba(59,130,246,0.15);
}
.form-group textarea { resize: vertical; min-height: 80px; }

/* Toast */
.toast { position: fixed; bottom: 30px; left: 50%; transform: translateX(-50%) translateY(80px); padding: 12px 24px; border-radius: 8px; color: #fff; font-size: 14px; z-index: 9999; opacity: 0; transition: all 0.3s ease; pointer-events: none; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* Modal */
.modal-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.6); z-index: 1000; align-items: center; justify-content: center; }
.modal-overlay.active, .modal-overlay.show { display: flex; }
.modal { background: var(--bg-alt); border: 1px solid var(--border); border-radius: var(--radius-lg); width: 560px; max-width: 90vw; max-height: 80vh; overflow-y: auto; }
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 20px 24px; border-bottom: 1px solid var(--border); }
.modal-header h3 { font-size: 16px; font-weight: 600; color: var(--text-1); }
.modal-close { background: none; border: none; color: var(--text-3); font-size: 20px; cursor: pointer; padding: 4px; line-height: 1; border-radius: 4px; }
.modal-close:hover { background: rgba(255,255,255,0.05); color: var(--text-1); }
.modal-body { padding: 24px; }
form { padding: 24px; }

/* News Page */
/* Page header - now handled by news-hero */

/* ========== Toast ========== */
.toast { position: fixed; top: 80px; right: 24px; padding: 14px 24px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); font-size: 14px; z-index: 9999; transform: translateX(120%); transition: transform 0.3s var(--ease); }
.toast.show { transform: translateX(0); }
.toast-success { border-left: 3px solid var(--green); }
.toast-error { border-left: 3px solid var(--red); }

/* ========== Legacy / Sub Page Compatibility ========== */
.section-header { margin-bottom: 56px; text-align: center; }
.section-en { font-family: var(--font-en); font-size: 12px; font-weight: 600; letter-spacing: 3px; text-transform: uppercase; color: var(--brand-light); margin-bottom: 16px; }
.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn-outline { background: transparent; color: var(--text); border: 1px solid var(--border-hover); }
.btn-outline:hover { border-color: var(--brand); color: var(--brand-light); background: rgba(59,130,246,0.05); }

.page-hero-badge { font-family: var(--font-en); font-size: 12px; font-weight: 600; letter-spacing: 2px; text-transform: uppercase; color: var(--geo); margin-bottom: 16px; }
.page-hero-subtitle { font-size: 16px; color: var(--text-2); max-width: 560px; margin: 0 auto; line-height: 1.8; }

.service-detail-layout { display: flex; flex-direction: column; gap: 0; }
.service-detail-content { display: flex; gap: 48px; align-items: flex-start; padding: 48px 0; border-bottom: 1px solid var(--border); }
.service-detail-content:last-child { border-bottom: none; }
.service-detail-icon { width: 56px; height: 56px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); }
.service-detail-icon svg { width: 28px; height: 28px; }

.cta-content { text-align: center; max-width: 640px; margin: 0 auto; }
.cta-content h2 { font-size: 32px; font-weight: 700; margin-bottom: 16px; }
.cta-content p { font-size: 15px; color: var(--text-2); margin-bottom: 32px; }
.cta-btns { display: flex; justify-content: center; gap: 12px; }

.tech-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.tech-item { padding: 20px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); text-align: center; font-size: 14px; color: var(--text-2); }

/* GEO Page Specific */
.geo-what { display: flex; gap: 80px; align-items: flex-start; }
.geo-what-left { max-width: 520px; flex-shrink: 0; }
.geo-what-right { flex: 1; }
.geo-what-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 32px; }
.geo-what-stats .stat-item { text-align: center; padding: 24px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); }
.geo-what-stats .stat-num { display: block; font-family: var(--font-en); font-size: 32px; font-weight: 700; color: var(--geo); line-height: 1; }
.geo-what-stats .stat-label { display: block; font-size: 13px; color: var(--text-3); margin-top: 8px; }

.sonar-container { position: relative; width: 240px; height: 240px; margin: 40px auto 0; }
.sonar-ring { position: absolute; top: 50%; left: 50%; border: 2px solid rgba(6,182,212,0.2); border-radius: 50%; transform: translate(-50%, -50%); animation: sonarPulse 4s ease-out infinite; }
.sonar-ring:nth-child(1) { width: 60px; height: 60px; animation-delay: 0s; }
.sonar-ring:nth-child(2) { width: 120px; height: 120px; animation-delay: 1s; }
.sonar-ring:nth-child(3) { width: 180px; height: 180px; animation-delay: 2s; }
.sonar-ring:nth-child(4) { width: 240px; height: 240px; animation-delay: 3s; }
.sonar-center { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 16px; height: 16px; background: var(--geo); border-radius: 50%; box-shadow: 0 0 20px rgba(6,182,212,0.5); }
.sonar-lg { width: 320px; height: 320px; }
@keyframes sonarPulse { 0% { transform: translate(-50%, -50%) scale(0.5); opacity: 1; } 100% { transform: translate(-50%, -50%) scale(1); opacity: 0; } }

/* Strength Page */
.about-grid { display: flex; gap: 80px; align-items: flex-start; }
.about-text { max-width: 560px; }
.about-text .section-title { text-align: left; }
.about-text .section-en { text-align: left; }
.about-text p { font-size: 15px; color: var(--text-2); line-height: 1.8; margin-bottom: 16px; }
.about-visual { flex: 1; display: flex; flex-direction: column; gap: 20px; }
.about-highlights { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 24px; }
.about-hl { text-align: center; padding: 20px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); }
.about-hl-num { font-family: var(--font-en); font-size: 32px; font-weight: 700; color: var(--gold); line-height: 1; }
.about-hl p { font-size: 13px; color: var(--text-3); margin-top: 6px; }
.about-card { padding: 28px 24px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); text-align: center; }
.about-card-icon { width: 44px; height: 44px; margin: 0 auto 12px; }
.about-card h4 { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.about-card p { font-size: 13px; color: var(--text-3); }

.cert-icon { width: 44px; height: 44px; margin: 0 auto 12px; }
.globe-flag { font-size: 28px; margin-bottom: 8px; display: block; }

/* Index page - geo split right */
.geo-split-right { flex: 1; }

/* ========== News Page Redesign ========== */
.news-hero { padding: 140px 0 60px; background: linear-gradient(180deg, #0C1D3A 0%, var(--bg) 100%); position: relative; overflow: hidden; }
.news-hero::before { content: ''; position: absolute; top: -40%; right: -20%; width: 600px; height: 600px; border-radius: 50%; background: radial-gradient(circle, rgba(59,130,246,0.06) 0%, transparent 70%); pointer-events: none; }
.news-hero-inner { position: relative; z-index: 1; text-align: center; }
.news-hero-en { font-family: var(--font-en); font-size: 12px; font-weight: 600; letter-spacing: 3px; color: var(--brand-light); text-transform: uppercase; margin-bottom: 12px; }
.news-hero-inner h1 { font-size: 42px; font-weight: 700; margin-bottom: 16px; }
.news-hero-inner p { font-size: 16px; color: var(--text-2); max-width: 520px; margin: 0 auto; line-height: 1.7; }

.news-filters { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 40px; }
.news-filter-btn { padding: 8px 20px; border-radius: 100px; font-size: 13px; font-weight: 500; border: 1px solid var(--border); background: transparent; color: var(--text-2); cursor: pointer; transition: all 0.2s var(--ease); }
.news-filter-btn:hover { border-color: var(--brand); color: var(--text-1); }
.news-filter-btn.active { background: var(--brand); border-color: var(--brand); color: #fff; }

.news-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card-lg { grid-column: span 2; }
.news-card-lg .news-card-img { height: 260px; }
.news-card-md .news-card-img { height: 200px; }

.news-card-img { position: relative; overflow: hidden; border-radius: 12px 12px 0 0; background: linear-gradient(135deg, #1E293B 0%, #0F172A 100%); }
.news-card-img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.4s var(--ease); }
.news-card-new:hover .news-card-img img { transform: scale(1.05); }
.news-card-placeholder { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; color: var(--text-3); }
.news-card-placeholder svg { width: 48px; height: 48px; opacity: 0.3; }

.news-card-new { background: var(--card); border: 1px solid rgba(255,255,255,0.06); border-radius: 12px; overflow: hidden; transition: all 0.25s var(--ease); display: flex; flex-direction: column; cursor: pointer; }
.news-card-new:hover { border-color: rgba(59,130,246,0.3); transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.3); }
.news-card-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.news-card-tag { font-family: var(--font-en); font-size: 11px; font-weight: 600; letter-spacing: 1px; color: var(--brand-light); text-transform: uppercase; margin-bottom: 10px; }
.news-card-body h3 { font-size: 17px; font-weight: 600; line-height: 1.5; margin-bottom: 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-card-lg .news-card-body h3 { font-size: 20px; }
.news-card-body .summary { font-size: 14px; color: var(--text-2); line-height: 1.7; flex: 1; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 16px; }
.news-card-footer { display: flex; align-items: center; justify-content: space-between; }
.news-card-date { font-size: 12px; color: var(--text-3); }
.news-card-read { font-size: 13px; font-weight: 500; color: var(--brand); display: flex; align-items: center; gap: 4px; transition: gap 0.2s var(--ease); }
.news-card-new:hover .news-card-read { gap: 8px; }

.news-empty-state { grid-column: 1 / -1; text-align: center; padding: 80px 20px; color: var(--text-3); }
.news-empty-state svg { width: 64px; height: 64px; margin-bottom: 16px; opacity: 0.3; }
.news-empty-state p { font-size: 15px; }

/* Article Detail */
.article-detail-page { max-width: 800px; margin: 0 auto; padding: 120px 20px 80px; }
.article-breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-3); margin-bottom: 32px; }
.article-breadcrumb a { color: var(--text-3); transition: color 0.2s; }
.article-breadcrumb a:hover { color: var(--brand); }
.article-breadcrumb .sep { opacity: 0.4; }
.article-detail-page h1 { font-size: 36px; font-weight: 700; line-height: 1.35; margin-bottom: 20px; color: var(--text-1); }
.article-detail-meta { display: flex; align-items: center; gap: 16px; font-size: 13px; color: var(--text-3); margin-bottom: 36px; padding-bottom: 24px; border-bottom: 1px solid var(--border); }
.article-detail-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--text-3); }
.article-cover-wrap { margin-bottom: 36px; border-radius: 12px; overflow: hidden; }
.article-cover-wrap img { width: 100%; max-height: 400px; object-fit: cover; display: block; }
.article-detail-content { font-size: 16px; color: var(--text-2); line-height: 2; }
.article-detail-content p { margin-bottom: 20px; }
.article-detail-content h2 { font-size: 24px; font-weight: 600; color: var(--text-1); margin: 40px 0 20px; }
.article-detail-content h3 { font-size: 20px; font-weight: 600; color: var(--text-1); margin: 32px 0 16px; }
.article-detail-content ul, .article-detail-content ol { padding-left: 24px; margin-bottom: 20px; }
.article-detail-content li { margin-bottom: 8px; }
.article-detail-content blockquote { border-left: 3px solid var(--brand); padding: 16px 24px; margin: 24px 0; background: rgba(59,130,246,0.05); border-radius: 0 8px 8px 0; color: var(--text-2); font-style: italic; }
.article-detail-content a { color: var(--brand); text-decoration: underline; }
.article-detail-content img { max-width: 100%; border-radius: 8px; margin: 20px 0; }
.article-back-btn { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 500; color: var(--brand); margin-bottom: 32px; cursor: pointer; transition: gap 0.2s var(--ease); }
.article-back-btn:hover { gap: 12px; }
.article-not-found { text-align: center; padding: 120px 20px; }
.article-not-found h2 { font-size: 24px; font-weight: 600; margin-bottom: 12px; }
.article-not-found p { font-size: 15px; color: var(--text-3); margin-bottom: 24px; }

/* Shared */
.logo-mark { display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; border-radius: 6px; background: linear-gradient(135deg, var(--brand) 0%, #1D4ED8 100%); color: #fff; font-weight: 700; font-size: 14px; }
.btn-geo { background: var(--geo); color: #fff; }
.btn-geo:hover { background: #0891B2; }
.bname { font-size: 15px; font-weight: 600; color: var(--text-1); }

/* ========== Industries ========== */
.industry-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.industry-item { background: var(--card); border: 1px solid rgba(255,255,255,0.06); border-radius: 12px; padding: 32px 24px; text-align: center; transition: border-color 0.2s; }
.industry-item:hover { border-color: rgba(59,130,246,0.3); }
.industry-icon { font-size: 36px; margin-bottom: 16px; }
.industry-item h4 { font-size: 17px; font-weight: 600; margin-bottom: 8px; color: var(--text-1); }
.industry-item p { font-size: 14px; color: var(--text-3); line-height: 1.6; }

/* ========== Testimonials ========== */
.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testimonial-card { background: var(--card); border: 1px solid rgba(255,255,255,0.06); border-radius: 12px; padding: 32px 28px; display: flex; flex-direction: column; gap: 24px; }
.testimonial-text { font-size: 15px; line-height: 1.8; color: var(--text-2); font-style: italic; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-avatar { width: 40px; height: 40px; border-radius: 50%; background: linear-gradient(135deg, var(--brand), var(--geo)); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 16px; color: #fff; flex-shrink: 0; }
.testimonial-author strong { display: block; font-size: 14px; color: var(--text-1); }
.testimonial-author span { font-size: 12px; color: var(--text-3); }

/* ========== Strength: Tech Advantages ========== */
.tech-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 48px; }
.tech-card { background: var(--card); border: 1px solid rgba(255,255,255,0.06); border-radius: 12px; padding: 32px; transition: border-color 0.3s; }
.tech-card:hover { border-color: var(--brand-light); }
.tech-card .service-icon { width: 48px; height: 48px; border-radius: 10px; background: rgba(59,130,246,0.1); color: var(--brand-light); margin-bottom: 20px; }
.tech-card .service-icon svg { width: 24px; height: 24px; }
.tech-card h3 { font-size: 18px; color: var(--text-1); margin-bottom: 12px; font-weight: 600; }
.tech-card p { font-size: 14px; color: var(--text-3); line-height: 1.7; }

/* ========== Strength: Core Team ========== */
.team-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 48px; }
.team-card { background: var(--card); border: 1px solid rgba(255,255,255,0.06); border-radius: 16px; padding: 36px; text-align: center; transition: border-color 0.3s; }
.team-card:hover { border-color: var(--brand-light); }
.team-avatar { width: 80px; height: 80px; border-radius: 50%; background: linear-gradient(135deg, var(--brand), var(--geo)); display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; font-size: 28px; font-weight: 700; color: #fff; }
.team-card h3 { font-size: 20px; color: var(--text-1); margin-bottom: 4px; font-weight: 600; }
.team-card .team-role { font-size: 13px; color: var(--geo-light); margin-bottom: 16px; }
.team-card p { font-size: 14px; color: var(--text-3); line-height: 1.7; text-align: left; }

/* ========== Strength: Awards ========== */
.award-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 48px; }
.award-card { background: var(--card); border: 1px solid rgba(255,255,255,0.06); border-radius: 12px; padding: 28px; text-align: center; transition: border-color 0.3s; }
.award-card:hover { border-color: var(--gold); }
.award-year { display: inline-block; background: rgba(245,158,11,0.15); color: var(--gold); font-size: 13px; font-weight: 600; padding: 4px 14px; border-radius: 20px; margin-bottom: 16px; }
.award-card h3 { font-size: 17px; color: var(--text-1); margin-bottom: 12px; font-weight: 600; line-height: 1.4; }
.award-card p { font-size: 14px; color: var(--text-3); line-height: 1.6; }

/* ========== Strength: Service Guarantee ========== */
.guarantee-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 48px; }
.guarantee-card { background: var(--card); border: 1px solid rgba(255,255,255,0.06); border-radius: 12px; padding: 28px; text-align: center; transition: border-color 0.3s; }
.guarantee-card:hover { border-color: var(--success); }
.guarantee-icon { width: 52px; height: 52px; border-radius: 50%; background: rgba(34,197,94,0.1); color: var(--success); display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; }
.guarantee-icon svg { width: 24px; height: 24px; }
.guarantee-card h3 { font-size: 17px; color: var(--text-1); margin-bottom: 10px; font-weight: 600; }
.guarantee-card p { font-size: 14px; color: var(--text-3); line-height: 1.6; }

/* ========== Responsive ========== */

/* ===== 1024px Tablet ===== */
@media (max-width: 1024px) {
  .svc-grid { grid-template-columns: repeat(2, 1fr); }
  .geo-split { flex-direction: column; gap: 48px; }
  .geo-split-left { max-width: 100%; }
  .about-layout { flex-direction: column; gap: 40px; }
  .about-side { width: 100%; }
  .hero-inner { padding: 60px 0 40px; gap: 40px; }
  .hero-title { font-size: 42px; }
  .hero-metrics .metric-val { font-size: 30px; }
  .process-steps { grid-template-columns: repeat(3, 1fr); }
  .advantages-grid { grid-template-columns: repeat(2, 1fr); }
  .methodology-grid { grid-template-columns: repeat(2, 1fr); }
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-band { flex-wrap: wrap; }
  .stat-divider { display: none; }
  .stat-block { padding: 16px 24px; }
  .contact-layout { grid-template-columns: 1fr; }
  .cert-grid, .globe-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .compare-cards { grid-template-columns: 1fr; gap: 20px; }
  .compare-vs { display: none; }
  .news-cards { grid-template-columns: repeat(2, 1fr); }
  .news-card-lg { grid-column: span 2; }
  .guarantee-grid { grid-template-columns: repeat(2, 1fr); }
  .geo-what-stats { grid-template-columns: repeat(2, 1fr); }
  .service-detail-content { gap: 24px; }
}

/* ===== 768px Mobile ===== */
@media (max-width: 768px) {
  /* Container & Section */
  .container { padding: 0 16px; }
  .section { padding: 56px 0; }

  /* ===== Navbar Mobile - Complete Redesign ===== */
  .navbar-inner { height: 56px; gap: 0; }
  .navbar-brand svg { width: 28px; height: 28px; }
  .brand-zh { font-size: 15px; }
  .brand-en { display: none; }

  /* Show language switcher on the top bar (always accessible) */
  .navbar-right { display: flex; align-items: center; gap: 6px; margin-left: auto; }
  .navbar-right .btn { display: none; } /* hide CTA from top bar on mobile */
  .lang-switch { gap: 1px; padding: 2px; border-radius: 6px; }
  .lang-switch span, .lang-btn { padding: 5px 8px; font-size: 11px; border-radius: 4px; }

  /* Hamburger button always visible */
  .mobile-toggle { display: flex; }

  /* Mobile menu: slide-down panel */
  .navbar-menu {
    display: none; position: fixed; top: 56px; left: 0; right: 0;
    background: rgba(7, 14, 26, 0.98); backdrop-filter: blur(20px);
    flex-direction: column; padding: 0; gap: 0; z-index: 999;
    max-height: calc(100vh - 56px); overflow-y: auto;
    border-top: 1px solid rgba(255,255,255,0.06);
    animation: menuSlideDown 0.25s var(--ease);
  }
  @keyframes menuSlideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
  }
  .navbar-menu.open { display: flex; }

  /* CTA button: show as a sticky bottom bar in the menu */
  .navbar-menu::after {
    content: ''; display: block; flex-shrink: 0;
  }
  .navbar-inner.open .navbar-right {
    display: none; /* hide from navbar-right position */
  }

  /* Menu items */
  .navbar-menu > li > a {
    padding: 14px 20px; font-size: 15px; border-radius: 0;
    border-bottom: 1px solid rgba(255,255,255,0.04);
    transition: background 0.15s;
    -webkit-tap-highlight-color: transparent;
  }
  .navbar-menu > li > a:active { background: rgba(255,255,255,0.06); }
  .navbar-menu > li > a.active { color: #fff; background: rgba(59,130,246,0.08); }

  /* Dropdown in mobile */
  .dropdown-menu {
    position: static; opacity: 1; visibility: visible; transform: none;
    background: rgba(255,255,255,0.02); box-shadow: none; border: none;
    padding: 0 0 0 20px; display: none; border-radius: 0;
  }
  .has-dropdown.open .dropdown-menu { display: block; }
  .dropdown-menu a {
    padding: 12px 20px; border-bottom: 1px solid rgba(255,255,255,0.03);
    font-size: 14px;
  }
  .dropdown-arrow { transition: transform 0.2s; }
  .has-dropdown.open > a .dropdown-arrow { transform: rotate(180deg); }

  /* Mobile CTA button at bottom of menu */
  .mobile-cta-item { margin-top: 8px; padding: 16px 20px; border-top: 1px solid rgba(255,255,255,0.08); display: list-item; }
  .mobile-cta-item .btn { width: 100%; justify-content: center; padding: 14px 24px; font-size: 15px; font-weight: 600; border-radius: 10px; }

  /* Overlay */
  .mobile-overlay.open { display: block; }

  /* Hero Mobile */
  .hero { padding-top: 56px; min-height: auto; }
  .hero-inner { flex-direction: column; gap: 32px; padding: 32px 0 48px; }
  .hero-left { text-align: center; }
  .hero-right { width: 100%; flex: 0 0 auto; }
  .hero-title { font-size: 30px; letter-spacing: -0.3px; }
  .hero-eyebrow { font-size: 11px; letter-spacing: 2px; padding: 5px 12px; }
  .hero-desc { font-size: 15px; margin-top: 16px; max-width: 100%; }
  .hero-actions { flex-direction: column; gap: 12px; align-items: stretch; }
  .hero-actions .btn, .hero-actions .btn-ghost { width: 100%; justify-content: center; padding: 12px 24px; }
  .hero-metrics { gap: 10px; }
  .hero-metrics .metric { padding: 16px 12px; border-radius: 10px; }
  .hero-metrics .metric-val { font-size: 24px; }
  .hero-metrics .metric-suffix { font-size: 18px; }
  .hero-metrics .metric-label { font-size: 11px; margin-top: 6px; }
  .hero-partners { margin-top: 16px; }

  /* Section titles */
  .section-title { font-size: 24px; }
  .section-eyebrow { font-size: 11px; letter-spacing: 2px; margin-bottom: 12px; }
  .section-head { margin-bottom: 40px; }
  .section-desc { font-size: 14px; }

  /* Service Grid */
  .svc-grid { grid-template-columns: 1fr; gap: 16px; }
  .svc-card { padding: 24px; }
  .services-grid { grid-template-columns: 1fr; }

  /* Stats Band */
  .stats-band { display: grid; grid-template-columns: 1fr 1fr; gap: 0; }
  .stat-block { padding: 20px 16px; }
  .stat-num { font-size: 26px; }
  .stat-plus { font-size: 16px; }
  .stat-text { font-size: 11px; margin-top: 6px; }

  /* About */
  .about-layout { flex-direction: column; gap: 32px; }
  .about-main { max-width: 100%; }
  .about-main .section-title { text-align: center; }
  .about-main .section-eyebrow { text-align: center; }
  .about-main p { font-size: 14px; }
  .about-side { grid-template-columns: 1fr 1fr; width: 100%; }
  .about-kv { padding: 20px 16px; }
  .about-kv-num { font-size: 28px; }
  .about-kv-unit { font-size: 18px; }

  /* GEO Section */
  .geo-split { flex-direction: column; gap: 32px; }
  .geo-split-left { max-width: 100%; }
  .geo-split-left .section-title { text-align: center; }
  .geo-split-left .section-en { text-align: center; }
  .geo-what { flex-direction: column; gap: 32px; }
  .geo-what-left { max-width: 100%; }
  .geo-what-stats { grid-template-columns: 1fr 1fr; }

  /* Compare */
  .compare-panel { grid-template-columns: 1fr; gap: 16px; }
  .compare-col { padding: 20px; }
  .compare-cards { grid-template-columns: 1fr; gap: 16px; }
  .compare-vs { display: none; }
  .compare-side { padding: 24px 20px; }
  .compare-row { flex-direction: column; gap: 12px; }
  .compare-cell { padding: 12px; min-width: auto; }
  .compare-cell.type-cell { width: 100%; justify-content: flex-start; padding-left: 16px; }
  .compare-cell.geo-cell { order: -1; }

  /* Methodology */
  .methodology-grid { grid-template-columns: 1fr; gap: 16px; }
  .method-card { padding: 24px; }

  /* Advantages */
  .advantages-grid { grid-template-columns: 1fr; gap: 16px; }
  .adv-card { padding: 24px; }

  /* Process Steps */
  .process-steps { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .process-step { padding: 20px 12px; }
  .step-num { font-size: 22px; margin-bottom: 8px; }
  .step-title { font-size: 13px; }
  .step-desc { font-size: 11px; }
  .step-line { display: none; }

  /* News */
  .news-grid { grid-template-columns: 1fr; }
  .news-cards { grid-template-columns: 1fr; }
  .news-card-lg { grid-column: span 1; }
  .news-card-lg .news-card-img { height: auto; aspect-ratio: 16/9; }
  .news-card-md .news-card-img { height: auto; aspect-ratio: 16/9; }
  .news-card-body { padding: 18px; }
  .news-card-body h3 { font-size: 15px; }
  .news-card-lg .news-card-body h3 { font-size: 17px; }
  .news-card-body .summary { font-size: 13px; -webkit-line-clamp: 2; }

  /* CTA */
  .cta-section { padding: 64px 0; }
  .cta-inner h2, .cta-content h2 { font-size: 24px; }
  .cta-inner p, .cta-content p { font-size: 14px; margin-bottom: 24px; }
  .cta-btns, .cta-actions { flex-direction: column; gap: 10px; }
  .cta-btns .btn, .cta-btns .btn-primary, .cta-btns .btn-outline,
  .cta-actions .btn, .cta-actions .btn-primary, .cta-actions .btn-outline { width: 100%; justify-content: center; padding: 12px 24px; }

  /* Footer */
  .footer { padding: 40px 0 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-grid-faq { grid-template-columns: 1fr; }
  .footer-col-faq { order: 2; }
  .footer-grid > .footer-col:not(.footer-col-faq) { order: 1; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; padding: 20px 0; }
  .footer-faq-q { font-size: 13px; padding: 8px 0; }
  .footer-faq-a { font-size: 12px; }
  .footer-desc { max-width: 100%; }

  /* Contact */
  .contact-layout { grid-template-columns: 1fr; gap: 32px; }
  .contact-form-wrap { padding: 24px; }
  .form-row { grid-template-columns: 1fr; gap: 16px; }
  .contact-card { padding: 18px; }

  /* Page Hero */
  .page-hero { padding: 100px 0 48px; }
  .page-hero-title { font-size: 26px; }
  .page-hero-desc { font-size: 14px; }

  /* Stats Row (sub pages) */
  .stats-row { grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 32px; }
  .stats-row .stat-item { padding: 18px 12px; }
  .stats-row .stat-num { font-size: 26px; }
  .stats-row .stat-label { font-size: 12px; }

  /* Service Detail */
  .sdf-item { flex-direction: column; gap: 16px; padding: 32px 0; }
  .sdf-icon { width: 48px; height: 48px; }
  .sdf-icon svg { width: 24px; height: 24px; }
  .sdf-title { font-size: 18px; }
  .service-detail-content { flex-direction: column; gap: 16px; }
  .service-detail-icon { width: 48px; height: 48px; }
  .service-detail-icon svg { width: 24px; height: 24px; }
  .service-detail-features { gap: 6px; }
  .service-detail-features span { font-size: 11px; padding: 3px 10px; }

  /* Strength */
  .about-grid { flex-direction: column; gap: 32px; }
  .about-text { max-width: 100%; }
  .about-text .section-title { text-align: center; }
  .about-text .section-en { text-align: center; }
  .about-highlights { grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 20px; }
  .about-hl { padding: 16px; }
  .about-hl-num { font-size: 26px; }
  .mv-grid { grid-template-columns: 1fr; gap: 16px; }
  .mv-card { padding: 24px; }
  .cert-grid, .globe-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .cert-card, .globe-card { padding: 18px; }
  .guarantee-grid { grid-template-columns: 1fr 1fr; gap: 12px; }

  /* Industry / Testimonial */
  .industry-grid { grid-template-columns: 1fr; gap: 16px; }
  .industry-item { padding: 24px 20px; }
  .testimonial-grid { grid-template-columns: 1fr; gap: 16px; }
  .testimonial-card { padding: 24px; }

  /* Comparison Table */
  .comparison-table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .comparison-table th, .comparison-table td { font-size: 12px; padding: 10px 12px; white-space: nowrap; }

  /* Sonar */
  .sonar-container { width: 180px; height: 180px; }
  .sonar-ring:nth-child(1) { width: 45px; height: 45px; }
  .sonar-ring:nth-child(2) { width: 90px; height: 90px; }
  .sonar-ring:nth-child(3) { width: 135px; height: 135px; }
  .sonar-ring:nth-child(4) { width: 180px; height: 180px; }
  .sonar-lg { width: 240px; height: 240px; }

  /* News Hero */
  .news-hero { padding: 100px 0 40px; }
  .news-hero-inner h1 { font-size: 28px; }
  .news-hero-inner p { font-size: 14px; }
  .news-filters { gap: 6px; }
  .news-filter-btn { padding: 6px 14px; font-size: 12px; }

  /* Article Detail */
  .article-detail-page { padding: 100px 16px 60px; }
  .article-detail-page h1 { font-size: 24px; }
  .article-detail-meta { flex-wrap: wrap; gap: 8px; font-size: 12px; }
  .article-detail-content { font-size: 15px; }
  .article-cover-wrap img { max-height: 240px; }

  /* Tech/Team/Award grids */
  .tech-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .team-grid { grid-template-columns: 1fr; gap: 20px; }
  .award-grid { grid-template-columns: 1fr; gap: 16px; }

  /* Admin */
  .admin-topbar { padding: 12px 16px; flex-wrap: wrap; gap: 8px; }
  .modal { width: 95vw; max-height: 90vh; }
  .modal-body { padding: 16px; }

  /* Taobao float */
  .tb-float { bottom: 16px; right: 12px; }
  .tb-float-btn { padding: 8px 14px; font-size: 12px; }
  .tb-float-tip { display: none; }
  .tb-float-close { top: -4px; right: -4px; width: 18px; height: 18px; font-size: 10px; }

  /* Toast */
  .toast { right: 12px; left: 12px; transform: translateY(-120%); font-size: 13px; padding: 12px 16px; }
  .toast.show { transform: translateY(0); }
}

/* ===== 480px Small Phone ===== */
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .section { padding: 48px 0; }
  .section-title { font-size: 20px; }
  .section-desc { font-size: 13px; }

  /* Hero */
  .hero-title { font-size: 24px; }
  .hero-desc { font-size: 14px; }
  .hero-metrics .metric-val { font-size: 20px; }
  .hero-metrics .metric-suffix { font-size: 16px; }

  /* Stats */
  .stats-band { grid-template-columns: 1fr 1fr; }
  .stat-block { padding: 16px 10px; }
  .stat-num { font-size: 22px; }

  /* About side - single column on very small screens */
  .about-side { grid-template-columns: 1fr 1fr; gap: 10px; }
  .about-kv { padding: 14px 10px; }
  .about-kv-num { font-size: 22px; }
  .about-highlights { grid-template-columns: 1fr 1fr; gap: 8px; }

  /* Process - single column */
  .process-steps { grid-template-columns: 1fr; }
  .process-step { padding: 16px; text-align: left; display: flex; gap: 16px; align-items: flex-start; }
  .step-num { margin-bottom: 0; font-size: 28px; line-height: 1; min-width: 36px; }
  .process-step > div { flex: 1; }
  .step-title { text-align: left; }
  .step-desc { text-align: left; }

  /* Guarantee */
  .guarantee-grid { grid-template-columns: 1fr; }

  /* Cert/Globe */
  .cert-grid, .globe-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .cert-card, .globe-card { padding: 14px; }

  /* Page Hero */
  .page-hero { padding: 88px 0 36px; }
  .page-hero-title { font-size: 22px; }

  /* Stats row */
  .stats-row .stat-num { font-size: 22px; }
  .stats-row .stat-item { padding: 14px 10px; }

  /* News */
  .news-hero-inner h1 { font-size: 22px; }
  .news-filter-btn { padding: 5px 12px; font-size: 11px; }

  /* Article detail */
  .article-detail-page h1 { font-size: 20px; }
  .article-detail-content { font-size: 14px; }

  /* Footer FAQ */
  .footer-faq-q { font-size: 12px; }
  .footer-faq-a { font-size: 11px; }

  /* Navbar */
  .navbar-inner { height: 52px; }
  .navbar-brand svg { width: 24px; height: 24px; }
  .brand-zh { font-size: 14px; }
  .mobile-toggle { width: 40px; height: 40px; }
  .hamburger-line { width: 18px; }
  .lang-switch span, .lang-btn { padding: 4px 6px; font-size: 10px; }
  .navbar-menu { top: 52px; max-height: calc(100vh - 52px); }
  .navbar-menu > li > a { padding: 12px 16px; font-size: 14px; }
  .mobile-cta-item { padding: 12px 16px; }
  .mobile-cta-item .btn { padding: 12px 20px; font-size: 14px; }

  /* Sonar */
  .sonar-container { width: 140px; height: 140px; margin: 24px auto 0; }
  .sonar-ring:nth-child(1) { width: 35px; height: 35px; }
  .sonar-ring:nth-child(2) { width: 70px; height: 70px; }
  .sonar-ring:nth-child(3) { width: 105px; height: 105px; }
  .sonar-ring:nth-child(4) { width: 140px; height: 140px; }

  /* CTA */
  .cta-section { padding: 48px 0; }
  .cta-inner h2, .cta-content h2 { font-size: 20px; }
  .cta-inner p, .cta-content p { font-size: 13px; }

  /* Contact */
  .contact-form-wrap { padding: 18px; }
  .contact-card { padding: 14px; gap: 12px; }
  .contact-card-icon { width: 38px; height: 38px; }

  /* Methodology */
  .method-card { padding: 18px; }
  .method-num { font-size: 30px; }

  /* Svc card */
  .svc-card { padding: 18px; }
  .svc-card h3 { font-size: 16px; }
}

/* ===== Safe area (notch/rounded phones) ===== */
@supports (padding: env(safe-area-inset-bottom)) {
  .footer { padding-bottom: env(safe-area-inset-bottom); }
  .tb-float { bottom: calc(16px + env(safe-area-inset-bottom)); }
  .navbar-menu { padding-bottom: env(safe-area-inset-bottom); }
  .mobile-cta-item { padding-bottom: calc(16px + env(safe-area-inset-bottom)); }
  .mobile-overlay { top: 56px; }
}

/* ===== 补充缺失样式 ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 24px;
  transition: border-color 0.3s;
}
.service-card:hover { border-color: var(--primary); }
.service-icon {
  width: 44px; height: 44px;
  margin-bottom: 16px;
  color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.service-icon svg { width: 100%; height: 100%; }
.service-card h3 { font-size: 18px; margin-bottom: 8px; color: #fff; }
.service-card p { font-size: 14px; color: var(--muted); line-height: 1.6; }

.cta-title { font-size: 32px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.cta-desc { font-size: 16px; color: var(--muted); margin-bottom: 28px; max-width: 600px; }

.sdf-content { flex: 1; }
.sdf-title { font-size: 20px; font-weight: 600; color: #fff; margin-bottom: 6px; }
.sdf-en { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 10px; }
.sdf-desc { font-size: 15px; color: var(--muted); line-height: 1.7; margin-bottom: 12px; }
.sdf-features { list-style: none; padding: 0; }
.sdf-features li { font-size: 14px; color: var(--sub); padding: 4px 0; padding-left: 16px; position: relative; }
.sdf-features li::before { content: ''; position: absolute; left: 0; top: 12px; width: 6px; height: 6px; border-radius: 50%; background: var(--primary); }

/* ========== 淘宝店铺浮窗 ========== */
.tb-float {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0;
  font-family: var(--font);
}
.tb-float-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: linear-gradient(135deg, #FF6A00, #FF4500);
  color: #fff;
  border-radius: 28px;
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  box-shadow: 0 4px 20px rgba(255, 69, 0, 0.35);
  transition: transform 0.2s, box-shadow 0.2s;
  cursor: pointer;
  border: none;
  white-space: nowrap;
}
.tb-float-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(255, 69, 0, 0.5);
}
.tb-float-btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}
/* 脉冲动画 */
.tb-float-pulse {
  position: absolute;
  top: 50%;
  left: 18px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
  transform: translate(-50%, -50%);
  animation: tbPulse 2.5s ease-out infinite;
  pointer-events: none;
}
@keyframes tbPulse {
  0% { width: 18px; height: 18px; opacity: 0.6; }
  100% { width: 40px; height: 40px; opacity: 0; }
}
/* 提示气泡 */
.tb-float-tip {
  position: absolute;
  bottom: calc(100% + 10px);
  right: 0;
  background: #fff;
  color: #333;
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 12px;
  font-weight: 500;
  line-height: 1.5;
  box-shadow: 0 4px 24px rgba(0,0,0,0.2);
  white-space: nowrap;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.3s, transform 0.3s;
  pointer-events: none;
}
.tb-float-tip::after {
  content: '';
  position: absolute;
  bottom: -6px;
  right: 24px;
  width: 12px;
  height: 12px;
  background: #fff;
  transform: rotate(45deg);
  border-radius: 2px;
}
.tb-float:hover .tb-float-tip {
  opacity: 1;
  transform: translateY(0);
}
/* 首次显示提示：3秒后自动弹出 */
.tb-float-tip.show {
  opacity: 1;
  transform: translateY(0);
}
/* 关闭按钮 */
.tb-float-close {
  position: absolute;
  top: -6px;
  right: -6px;
  width: 20px;
  height: 20px;
  background: #fff;
  border: 1px solid #eee;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: #999;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  transition: color 0.15s;
  z-index: 2;
}
.tb-float-close:hover { color: #333; }

/* ========== CTA Banner ========== */
.cta-section { padding: 100px 0; background: linear-gradient(135deg, #0B1120 0%, #1a1a3e 50%, #0F172A 100%); position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; top: -50%; right: -20%; width: 600px; height: 600px; border-radius: 50%; background: radial-gradient(circle, rgba(59,130,246,0.06) 0%, transparent 70%); }
.cta-inner { max-width: 720px; margin: 0 auto; text-align: center; position: relative; z-index: 1; }
.cta-inner h2 { font-size: 36px; font-weight: 700; margin-bottom: 16px; line-height: 1.3; }
.cta-inner p { font-size: 16px; color: var(--text-2); margin-bottom: 36px; line-height: 1.7; }
.cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.cta-btns .btn-primary { padding: 14px 36px; font-size: 15px; font-weight: 600; }
.cta-btns .btn-outline { padding: 14px 36px; font-size: 15px; font-weight: 600; border: 1px solid var(--border); color: var(--text); border-radius: var(--radius); background: transparent; cursor: pointer; transition: all 0.25s; text-decoration: none; }
.cta-btns .btn-outline:hover { border-color: var(--brand); color: var(--brand); background: rgba(59,130,246,0.05); }