/* ============================================
   三安光电股票(600703) 集群页面公共样式
   适用：sanguangdian-stock.html 及 pages/sanguangdian-*.html
   配色：白底·清晰（钴蓝 #1d4ed8 + 橙黄 #f59e0b）
   最后更新：2026-06-23
   ============================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }

:root {
  --primary:        #1d4ed8;
  --primary-hover:  #1e40af;
  --primary-light:  #dbeafe;
  --primary-dark:   #1e3a8a;
  --accent:         #f59e0b;
  --accent-hover:   #d97706;
  --accent-light:   #fef3c7;
  --bg:             #f7f9fc;
  --white:          #ffffff;
  --text:           #1e293b;
  --text-soft:      #475569;
  --text-muted:     #94a3b8;
  --border:         #e2e8f0;
  --up:             #16a34a;
  --up-bg:          #dcfce7;
  --down:           #dc2626;
  --down-bg:        #fee2e2;
  --tag-bg:         #eff6ff;
  --warning-bg:     #fefce8;
  --warning-border: #fde047;
  --warning-text:   #713f12;
  --shadow-sm:      0 2px 8px rgba(0,0,0,.06);
  --shadow-md:      0 4px 20px rgba(29,78,216,.10);
  --radius:         10px;
  --radius-sm:      6px;
  --max-width:      880px;
}

/* ---- Progress bar ---- */
#progress-bar { position: fixed; top: 60px; left: 0; height: 3px; background: var(--primary); width: 0%; z-index: 101; transition: width .1s linear; }

/* ---- Nav ---- */
nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: var(--white); border-bottom: 1px solid var(--border); height: 60px; display: flex; align-items: center; justify-content: space-between; padding: 0 clamp(16px, 4vw, 48px); box-shadow: var(--shadow-sm); }
.nav-logo { font-weight: 900; font-size: 18px; color: var(--primary); white-space: nowrap; text-decoration: none; }
.nav-logo span { color: var(--text); font-weight: 700; }
.nav-links { display: flex; align-items: center; gap: 2px; list-style: none; }
.nav-links a { font-size: 13px; font-weight: 600; color: var(--text-soft); padding: 6px 10px; border-radius: var(--radius-sm); white-space: nowrap; transition: background .2s, color .2s; }
.nav-links a:hover, .nav-links a.active { background: var(--primary-light); color: var(--primary); text-decoration: none; }
.nav-cta { background: var(--primary) !important; color: var(--white) !important; padding: 7px 14px !important; border-radius: 20px !important; font-size: 13px !important; font-weight: 700 !important; transition: background .2s !important; }
.nav-cta:hover { background: var(--primary-hover) !important; }
.hamburger { display: none; background: none; border: none; cursor: pointer; font-size: 14px; font-weight: 600; color: var(--text); }
.mobile-menu { display: none; position: fixed; top: 60px; left: 0; right: 0; background: var(--white); border-bottom: 1px solid var(--border); padding: 12px 20px; z-index: 99; }
.mobile-menu.open { display: block; }
.mobile-menu a { display: block; padding: 10px 0; font-size: 15px; font-weight: 600; color: var(--text-soft); border-bottom: 1px solid var(--border); }
.mobile-menu a:last-child { border-bottom: none; }

/* ---- Layout ---- */
main { padding-top: 60px; }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 clamp(16px, 4vw, 40px); }
section { padding: clamp(40px, 6vw, 72px) 0; }
section + section { border-top: 1px solid var(--border); }

/* ---- Hero ---- */
.hero { background: var(--bg); padding: clamp(48px, 8vw, 88px) clamp(16px, 4vw, 40px); text-align: center; border-bottom: 1px solid var(--border); }
.hero-breadcrumb { font-size: 13px; color: var(--text-muted); margin-bottom: 16px; }
.hero-breadcrumb a { color: var(--primary); }
.hero h1 { font-size: clamp(22px, 4vw, 36px); font-weight: 900; line-height: 1.3; margin-bottom: 16px; color: var(--text); }
.hero h1 .blue { color: var(--primary); }
.hero-intro { font-size: clamp(14px, 2vw, 16px); color: var(--text-soft); max-width: 700px; margin: 0 auto 28px; line-height: 1.8; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-bottom: 28px; }
.hero-tag { background: var(--tag-bg); border: 1px solid var(--primary-light); color: var(--primary); font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 20px; }
.hero-cta-group { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.hero-update { margin-top: 20px; font-size: 12px; color: var(--text-muted); }

/* ---- Buttons ---- */
.btn-primary { display: inline-block; background: var(--primary); color: var(--white); font-weight: 700; font-size: 15px; padding: 12px 28px; border-radius: 28px; transition: transform .2s, box-shadow .2s, background .2s; box-shadow: 0 4px 14px rgba(29,78,216,.25); }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(29,78,216,.35); text-decoration: none; color: var(--white); }
.btn-secondary { display: inline-block; background: var(--white); color: var(--primary); font-weight: 600; font-size: 14px; padding: 11px 24px; border-radius: 28px; border: 1.5px solid var(--primary); transition: background .2s; }
.btn-secondary:hover { background: var(--primary-light); text-decoration: none; color: var(--primary); }
.btn-accent { display: inline-block; background: var(--accent); color: var(--white); font-weight: 700; font-size: 14px; padding: 10px 22px; border-radius: 28px; transition: background .2s; }
.btn-accent:hover { background: var(--accent-hover); text-decoration: none; color: var(--white); }

/* ---- Cards ---- */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 20px; }
.card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow-sm); transition: transform .2s, box-shadow .2s; }
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.card-icon { font-size: 28px; margin-bottom: 12px; }
.card h3 { font-size: 16px; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.card p { font-size: 14px; color: var(--text-soft); line-height: 1.6; }
.card-link { display: inline-block; margin-top: 14px; font-size: 14px; font-weight: 600; color: var(--primary); }
.card-link:hover { text-decoration: underline; }

/* ---- Data block ---- */
.data-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }
.data-block { background: var(--white); border: 1px solid var(--border); border-left: 4px solid var(--primary); border-radius: var(--radius-sm); padding: 16px 20px; }
.data-block .label { font-size: 13px; color: var(--text-muted); margin-bottom: 4px; }
.data-block .value { font-size: 22px; font-weight: 700; color: var(--text); }
.data-block .value.up { color: var(--up); }
.data-block .value.down { color: var(--down); }
.data-block .sub { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

/* ---- Section title ---- */
.section-title { font-size: clamp(18px, 3vw, 26px); font-weight: 900; color: var(--text); margin-bottom: 8px; }
.section-subtitle { font-size: 14px; color: var(--text-muted); margin-bottom: 28px; }
.section-title .blue { color: var(--primary); }

/* ---- Tags / badges ---- */
.tag { display: inline-block; background: var(--tag-bg); color: var(--primary); border-radius: 4px; font-size: 12px; font-weight: 600; padding: 2px 8px; }
.tag-accent { background: var(--accent-light); color: var(--accent-hover); }
.tag-up { background: var(--up-bg); color: var(--up); }
.tag-down { background: var(--down-bg); color: var(--down); }

/* ---- Disclaimer ---- */
.disclaimer { background: var(--warning-bg); border: 1px solid var(--warning-border); border-radius: var(--radius-sm); padding: 12px 16px; font-size: 13px; color: var(--warning-text); margin-top: 24px; }
.disclaimer strong { font-weight: 700; }

/* ---- FAQ accordion ---- */
.faq-list { list-style: none; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius-sm); margin-bottom: 10px; overflow: hidden; }
.faq-q { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; font-size: 15px; font-weight: 600; color: var(--text); cursor: pointer; background: var(--white); transition: background .2s; }
.faq-q:hover { background: var(--primary-light); }
.faq-q .icon { font-size: 18px; color: var(--primary); transition: transform .2s; flex-shrink: 0; }
.faq-item.open .faq-q .icon { transform: rotate(45deg); }
.faq-a { display: none; padding: 0 20px 16px; font-size: 14px; color: var(--text-soft); line-height: 1.75; border-top: 1px solid var(--border); }
.faq-a p { padding-top: 14px; }
.faq-item.open .faq-a { display: block; }

/* ---- Timeline ---- */
.timeline { position: relative; padding-left: 28px; }
.timeline::before { content: ''; position: absolute; left: 7px; top: 0; bottom: 0; width: 2px; background: var(--border); }
.timeline-item { position: relative; margin-bottom: 28px; }
.timeline-item::before { content: ''; position: absolute; left: -25px; top: 6px; width: 12px; height: 12px; border-radius: 50%; background: var(--primary); border: 2px solid var(--white); box-shadow: 0 0 0 2px var(--primary); }
.timeline-date { font-size: 12px; color: var(--text-muted); margin-bottom: 4px; }
.timeline-title { font-size: 15px; font-weight: 700; color: var(--text); margin-bottom: 6px; }
.timeline-body { font-size: 14px; color: var(--text-soft); line-height: 1.7; }

/* ---- Inline link box ---- */
.link-box { background: var(--primary-light); border-radius: var(--radius-sm); padding: 16px 20px; margin-top: 24px; }
.link-box p { font-size: 14px; color: var(--text-soft); margin-bottom: 10px; }
.link-box a { font-weight: 600; color: var(--primary); }

/* ---- Footer ---- */
footer { background: var(--text); color: #94a3b8; padding: 40px clamp(16px, 4vw, 48px); text-align: center; font-size: 13px; line-height: 1.8; }
footer a { color: #93c5fd; }
footer .footer-links { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; margin-bottom: 16px; }
footer .footer-disclaimer { max-width: 760px; margin: 16px auto 0; font-size: 12px; color: #64748b; }

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .nav-links { gap: 0; }
  .nav-links a { padding: 6px 8px; font-size: 12px; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: block; }
  .card-grid { grid-template-columns: 1fr; }
  .data-grid { grid-template-columns: repeat(2, 1fr); }
  .hero h1 { font-size: 22px; }
}
@media (max-width: 480px) {
  .data-grid { grid-template-columns: 1fr; }
  .hero-cta-group { flex-direction: column; align-items: stretch; }
  .btn-primary, .btn-secondary { text-align: center; }
}

/* ---- Hero Snapshot ---- */
.hero-snapshot { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin: 20px auto 24px; max-width: 720px; }
.snap-item { background: var(--white); border: 1px solid var(--border); border-left: 4px solid var(--primary); border-radius: var(--radius-sm); padding: 12px 18px; text-align: left; min-width: 200px; flex: 1; }
.snap-label { display: block; font-size: 12px; color: var(--text-muted); margin-bottom: 4px; }
.snap-val { display: block; font-size: 18px; font-weight: 700; color: var(--text); margin-bottom: 2px; }
.snap-note { display: block; font-size: 11px; color: var(--text-muted); }
@media (max-width: 600px) { .snap-item { min-width: 100%; } }

.snap-val.snap-up { color: var(--up); }

/* 三安光电集群页扩展样式 - 从子页内联style提取 */
/* ---- 操作流程块 ---- */
.how-block{background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:24px 28px;margin-bottom:20px}
.how-block-header{display:flex;align-items:center;gap:10px;margin-bottom:6px}
.how-block-header h3{font-size:16px;font-weight:900;color:var(--text)}
.step-tag{background:var(--primary);color:#fff;font-size:11px;font-weight:700;padding:2px 8px;border-radius:4px}
.how-block p{font-size:13px;color:var(--text-soft);margin-bottom:4px}
.skill-bar{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 0}
.skill-badge{display:flex;align-items:center;gap:5px;background:#fff;border:1px solid var(--primary-light);border-radius:20px;padding:4px 12px;font-size:12px;font-weight:600;color:var(--primary)}
.skill-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);flex-shrink:0}
/* ---- 提示词行 ---- */
.prompt-row{background:#fff;border:1px solid var(--border);border-radius:6px;padding:12px 16px;margin:12px 0;font-size:13px}
.prompt-row code{display:block;font-family:monospace;font-size:12px;color:var(--primary);background:var(--primary-light);border-radius:3px;padding:6px 10px;margin-top:6px;word-break:break-all}
.prompt-row .pr-label{font-size:11px;font-weight:700;color:var(--text-muted);margin-bottom:4px}
/* ---- 数据表格 ---- */
.data-table{width:100%;border-collapse:collapse;font-size:13px;margin-top:16px}
.data-table th{background:var(--primary-light);color:var(--primary);font-weight:700;padding:9px 12px;text-align:left;border:1px solid var(--border)}
.data-table td{padding:9px 12px;border:1px solid var(--border);color:var(--text-soft);vertical-align:top;line-height:1.6}
.data-table tr:nth-child(even) td{background:var(--bg)}
/* ---- 零门槛查价块 ---- */
.zero-block{background:linear-gradient(135deg,var(--primary-light),#f0f7ff);border:2px solid var(--primary);border-radius:10px;padding:22px 26px;margin-bottom:20px}
.zero-block .zero-badge{display:inline-block;background:var(--primary);color:#fff;font-size:11px;font-weight:700;padding:2px 10px;border-radius:4px;margin-bottom:10px}
.zero-block h3{font-size:15px;font-weight:900;color:var(--text);margin-bottom:6px}
.zero-prompt{background:#fff;border:1px solid var(--border);border-radius:6px;padding:10px 14px;font-family:monospace;font-size:13px;color:var(--primary);margin:10px 0;word-break:break-all}
/* ---- 事件操作块 ---- */
.event-how{background:var(--primary-light);border-radius:10px;padding:20px 24px;margin-top:24px}
.event-how h3{font-size:15px;font-weight:800;color:var(--text);margin-bottom:12px}
/* ---- FAQ增强 ---- */
.faq-prompt{background:var(--primary-light);border-radius:4px;padding:8px 12px;font-size:12px;color:var(--primary);font-family:monospace;margin-top:8px;word-break:break-all;display:block}
@media(max-width:768px){.how-block{padding:18px 16px}}