/* 老王工具站 · C2 明亮工业控制中心主题 */
:root {
  --bg: #f2f5f8;
  --surface: #ffffff;
  --border: #c9d2da;
  --border-strong: #9eabb6;
  --ink: #10151b;
  --ink-muted: #64707a;
  --ink-subtle: #87939d;
  --primary: #2354ff;
  --primary-hover: #1744dc;
  --primary-soft: #eaf1ff;
  --accent: #ff4c35;
  --accent-soft: #fff0ec;
  --success: #07885a;
  --success-soft: #e8f7f0;
  --warning: #9b7600;
  --warning-soft: #fff7cf;
  --danger: #d92d20;
  --danger-soft: #fff0ee;
  --radius-sm: 3px;
  --radius: 4px;
  --radius-lg: 6px;
  --shadow-sm: 0 1px 2px rgba(16, 21, 27, 0.05), 0 8px 20px -16px rgba(35, 84, 255, 0.4);
  --shadow: 0 2px 4px rgba(16, 21, 27, 0.05), 0 18px 42px -28px rgba(35, 84, 255, 0.42);
  --shadow-lg: 0 3px 8px rgba(16, 21, 27, 0.06), 0 28px 64px -38px rgba(35, 84, 255, 0.5);
}

html { background: var(--bg); }
body {
  background: var(--bg) !important;
  background-image: none !important;
  color: var(--ink);
  letter-spacing: 0;
  font-variant-numeric: tabular-nums;
}

h1, h2, h3 { letter-spacing: 0 !important; }

.demo-banner {
  min-height: 28px;
  padding: 7px 32px;
  color: var(--warning-soft);
  background: var(--ink);
  border: 0;
  font: 700 10px/1.4 var(--font-mono);
  text-transform: uppercase;
}

.navbar {
  min-height: 68px;
  padding: 0 4vw;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(18px);
  box-shadow: none;
}
.navbar-brand { gap: 12px; font-weight: 800; }
.navbar-brand-logo {
  width: 34px;
  height: 34px;
  color: white;
  background: var(--primary);
  border-radius: 3px;
  box-shadow: 5px 5px 0 #ffd42d;
}
.navbar-links { gap: 8px; }
.navbar-links a { border-radius: 3px; font-size: 13px; font-weight: 600; }
.navbar-links a:hover { background: var(--primary-soft); color: var(--ink); }
.navbar-links a.active { color: var(--ink); background: transparent; box-shadow: inset 0 -3px var(--primary); }
.navbar-links a.v15 { border-radius: 3px; background: var(--bg); }

.btn { border-radius: 3px; font-weight: 750; transition: transform .18s, box-shadow .18s, background .18s; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { color: white; background: var(--primary); box-shadow: inset 0 1px rgba(255,255,255,.2), 0 8px 18px -12px var(--primary); }
.btn-primary:hover { color: white; background: var(--primary-hover); box-shadow: inset 0 1px rgba(255,255,255,.2), 0 12px 22px -12px var(--primary); }
.btn-accent { color: white; background: var(--accent); box-shadow: inset 0 1px rgba(255,255,255,.2), 0 8px 18px -12px var(--accent); }
.btn-accent:hover { color: white; background: #e63b27; }
.btn-outline { color: var(--ink); background: white; border-color: var(--ink); }
.btn-outline:hover { color: var(--ink); background: var(--warning-soft); }
.btn-ghost:hover { color: var(--primary); background: var(--primary-soft); }

.card, .tag, input[type=text], input[type=tel], input[type=number], textarea, select { border-radius: 4px; }
.card { border-color: var(--border); box-shadow: none; }
.tag { font-weight: 700; }
.tag-primary { color: var(--primary); background: var(--primary-soft); }
.tag-success { color: var(--success); background: var(--success-soft); }
.tag-warning { color: #745800; background: var(--warning-soft); }
.tag-accent { color: var(--accent); background: var(--accent-soft); }
input:focus, textarea:focus, select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(35,84,255,.1); }

/* 首页 */
.hero {
  position: relative;
  background: var(--bg) !important;
  background-image: none !important;
  border-bottom: 1px solid var(--border) !important;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: 92px;
  left: 50%;
  width: 74px;
  height: 5px;
  background: var(--primary);
  transform: translateX(-51px);
  box-shadow: 86px 0 0 var(--accent);
}
.hero-badge { margin-top: 26px; color: var(--primary); background: transparent; border: 1px solid var(--primary); border-radius: 3px; font-family: var(--font-mono); font-size: 11px; }
.hero h1 { max-width: 1040px; margin-left: auto; margin-right: auto; font-size: clamp(46px, 6vw, 78px); line-height: 1.03; font-weight: 850; }
.hero h1 .highlight { padding: 0; color: var(--primary); background: none; }
.hero-sub { max-width: 760px; color: var(--ink-muted); }
.hero-trust { color: var(--ink-muted); }
.hero-trust span::before { color: var(--primary); }

.ai-cta {
  border: 2px solid var(--ink) !important;
  border-radius: 4px !important;
  background: var(--surface) !important;
  box-shadow: 9px 9px 0 #ffd42d, var(--shadow-lg) !important;
}
.ai-cta::before { content: ""; position: absolute; left: -2px; top: -2px; width: 126px; height: 6px; background: var(--primary); }
.ai-icon { color: white; background: var(--primary) !important; border-radius: 3px; box-shadow: 4px 4px 0 #ffd42d; }
.ai-cta-input { border-color: var(--border); border-radius: 3px; background: #f9fbfd; }
.example-chip { border-radius: 3px; background: var(--bg); }
.example-chip:hover { border-color: var(--primary); background: var(--primary-soft); }

.section { padding-top: 76px; padding-bottom: 76px; }
.section-title { font-size: 28px; font-weight: 800; }
#tools { padding-top: 76px !important; }
.tool-grid { gap: 14px; }
.tool-card,
.tool-card[class*="theme-"] {
  background: var(--surface) !important;
  background-image: none !important;
  border: 1px solid var(--ink) !important;
  border-radius: 4px !important;
  box-shadow: none;
}
.tool-card::before { top: -1px; left: -1px; right: auto; width: 74px; height: 5px; opacity: 1; background: var(--primary); }
.tool-card:nth-child(3n+2) { background: var(--primary-soft) !important; }
.tool-card:nth-child(3n) { background: var(--warning-soft) !important; }
.tool-card:nth-child(3n+2)::before { background: var(--accent); }
.tool-card:nth-child(3n)::before { background: #00a676; }
.tool-card:hover { border-color: var(--ink) !important; box-shadow: 7px 7px 0 #ffd42d !important; transform: translate(-2px, -2px); }
.tool-icon,
.tool-icon.ic1,
.tool-icon.ic2,
.tool-icon.ic3 { color: white; background: var(--primary) !important; border-radius: 3px; transition: transform .2s; }
.tool-card:nth-child(3n+2) .tool-icon { background: var(--accent) !important; }
.tool-card:nth-child(3n) .tool-icon { background: var(--ink) !important; }
.tool-card:hover .tool-icon { transform: scale(1.06) rotate(3deg); }
.tool-name { color: var(--ink) !important; }
.tool-tag { color: var(--ink) !important; background: rgba(255,255,255,.82); border-color: var(--ink) !important; border-radius: 3px; }
.two-col { padding-top: 30px; }
.why-section { padding: 26px; background: white; border: 2px solid var(--ink); border-radius: 4px; box-shadow: 8px 8px 0 var(--primary-soft); }
.why-icon { color: white; background: var(--primary); border-radius: 3px; }
.why-list li + li { border-color: var(--border); }
.footer { color: #aeb8c0; background: var(--ink); border: 0; }
.footer a { color: white; }

/* 智能选型页 */
.page-wrap { gap: 18px; }
.chat-header,
.chat-body,
.chat-input-area,
.params-panel { border-color: var(--ink) !important; }
.chat-header { position: relative; border-width: 2px; border-radius: 4px 4px 0 0; }
.chat-header::before { content: ""; position: absolute; left: -2px; top: -2px; width: 112px; height: 5px; background: var(--primary); }
.chat-body { border-left-width: 2px; border-right-width: 2px; }
.chat-input-area { border-width: 0 2px 2px; border-radius: 0 0 4px 4px; }
.ai-avatar, .msg-avatar.ai { color: white; background: var(--primary) !important; border-radius: 3px; }
.ai-avatar { box-shadow: 4px 4px 0 #ffd42d; }
.msg-avatar.user { border-radius: 3px; background: white; border-color: var(--ink); }
.msg-content { border: 1px solid var(--border); border-radius: 4px; background: white; }
.msg-content.ai-msg { background: var(--primary-soft); border-color: #b9caff; }
.chat-input-wrap { border-color: var(--border-strong); border-radius: 4px; }
.icon-btn { border-radius: 3px; }
.params-panel { border-width: 2px; border-radius: 4px; box-shadow: 7px 7px 0 #ffd42d; }
.params-header { position: relative; background: white; }
.params-header::before { content: ""; position: absolute; left: -2px; top: -2px; width: 82px; height: 5px; background: var(--accent); }
.param-row { border-radius: 3px; }
.param-row.missing { background: var(--warning-soft); }
.params-footer, .legend { background: var(--bg); }

/* 推荐结果页 */
.calc-card {
  position: relative;
  color: var(--ink);
  background: white !important;
  border: 2px solid var(--ink) !important;
  border-radius: 4px !important;
  box-shadow: 8px 8px 0 #ffd42d;
}
.calc-card::before { content: ""; position: absolute; left: -2px; top: -2px; width: 116px; height: 6px; background: var(--primary); }
.calc-item-value { color: var(--ink); }
.calc-note { border-color: var(--border); }
.results-title { font-weight: 820; }
.rec-card { border-color: var(--ink); border-radius: 4px; box-shadow: none; }
.rec-card:hover { box-shadow: 7px 7px 0 #ffd42d; transform: translate(-2px,-2px); }
.rec-card.top { border: 2px solid var(--primary); box-shadow: none; }
.rec-rank { border-radius: 0 0 3px 0; background: var(--primary); }
.rec-rank.silver { color: var(--ink); background: #ffd42d; }
.rec-rank.bronze { background: var(--accent); }
.rec-brand-logo { color: var(--ink); background: var(--bg); border: 1px solid var(--border); border-radius: 3px; }
.rec-spec { background: var(--bg); border: 1px solid var(--border); border-radius: 3px; }
.rec-reason { background: var(--primary-soft); border-radius: 3px; border-left-color: var(--primary); }
.rec-price-value { color: var(--accent); }
.disclaimer-card { color: #594500; background: var(--warning-soft); border-color: #d2aa00; border-radius: 4px; }
.disclaimer-card a { color: #594500; }

/* 项目库 */
.page-header { background: white !important; border-bottom-color: var(--border); }
.page-header-inner { position: relative; }
.page-header-inner::before { content: ""; position: absolute; left: 0; top: -24px; width: 88px; height: 5px; background: var(--primary); }
.page-title h1, .page-title { font-weight: 820; }
.filter-tab, .filter-chip { border-radius: 3px; }
.filter-tab.active, .filter-chip.active { color: white; background: var(--primary); border-color: var(--primary); }
.projects { gap: 14px; }
.proj-card { position: relative; border-color: var(--border); border-radius: 4px; }
.proj-card::before { content: ""; position: absolute; left: -1px; top: -1px; bottom: -1px; width: 5px; background: var(--primary); }
.proj-card:nth-child(3n+2)::before { background: var(--accent); }
.proj-card:nth-child(3n)::before { background: #00a676; }
.proj-card:hover { border-color: var(--ink); box-shadow: 6px 6px 0 #ffd42d; transform: translate(-1px,-1px); }
.proj-icon { border-radius: 3px; }
.proj-icon.dianchi { background: var(--primary-soft); }
.proj-icon.qiche { background: var(--warning-soft); }
.proj-icon.consumer { background: var(--success-soft); }
.proj-icon.robot { background: var(--accent-soft); }
.proj-actions .icon-btn { border-radius: 3px; }

/* 机会广场 */
.curator-tag { color: var(--accent); border-color: var(--accent); border-radius: 3px; }
.stats-strip b { color: var(--primary); }
.job-list { gap: 14px; }
.job-card { border-color: var(--border); border-radius: 4px; }
.job-card::before { content: ""; position: absolute; left: -1px; top: -1px; width: 84px; height: 5px; background: var(--primary); }
.job-card:nth-child(3n+2)::before { background: var(--accent); }
.job-card:nth-child(3n)::before { background: #00a676; }
.job-card:hover { border-color: var(--ink); box-shadow: 6px 6px 0 #ffd42d; transform: translate(-1px,-1px); }
.job-card-price { color: var(--accent); }
.req-chip { border: 1px solid var(--border); border-radius: 3px; background: var(--bg); }
.contact-card { color: var(--ink); background: var(--warning-soft); border: 2px solid var(--ink); border-radius: 4px; box-shadow: 7px 7px 0 var(--primary); }
.qr-placeholder { border-color: var(--ink); border-radius: 3px; }
.wechat-id { border: 1px solid var(--ink); border-radius: 3px; }
.info-card { border-color: var(--ink); border-radius: 4px; }
.info-card ul li::before { color: var(--primary); }

/* Demo 索引 */
body.demo-index { max-width: 980px; background: var(--bg) !important; }
.demo-link { position: relative; border-color: var(--ink) !important; border-radius: 4px !important; box-shadow: none !important; }
.demo-link::before { content: ""; position: absolute; left: -1px; top: -1px; width: 72px; height: 5px; background: var(--primary); }
.demo-link:nth-of-type(3n+2)::before { background: var(--accent); }
.demo-link:nth-of-type(3n)::before { background: #00a676; }
.demo-link:hover { border-color: var(--ink) !important; box-shadow: 7px 7px 0 #ffd42d !important; transform: translate(-2px,-2px) !important; }
.demo-link .us-tag { border-radius: 3px !important; }
.footer-note { color: #594500 !important; background: var(--warning-soft) !important; border-color: #d2aa00 !important; border-radius: 4px !important; }

@media (max-width: 900px) {
  .navbar { padding: 0 18px; }
  .navbar-links a:not(.active):not(.btn) { display: none; }
  .hero { padding-left: 20px; padding-right: 20px; }
  .hero::before { top: 64px; }
  .hero h1 { font-size: 44px; }
  .hero-trust { flex-wrap: wrap; gap: 10px 18px; }
  .ai-cta { margin-left: 18px; margin-right: 26px; padding: 22px; }
  .section { padding: 60px 18px; }
  .tool-grid { grid-template-columns: repeat(2, 1fr); }
  .two-col { padding: 0 18px 50px; }
  .rec-body { grid-template-columns: 170px 1fr; }
  .rec-actions { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr 1fr 1fr; align-items: center; }
  .page-header, .page-wrap, .projects, .filter-bar, .main-area { padding-left: 18px; padding-right: 18px; }
  .proj-card { grid-template-columns: auto 1fr; }
  .proj-actions { grid-column: 1 / -1; justify-content: flex-end; }
}

@media (max-width: 620px) {
  .demo-banner { padding-left: 16px; padding-right: 16px; font-size: 9px; }
  .navbar-brand { font-size: 15px; }
  .navbar-links .btn { padding-left: 10px; padding-right: 10px; }
  .hero { padding-top: 62px; }
  .hero h1 { font-size: 39px; }
  .hero-sub { font-size: 15px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .ai-cta { margin-top: -24px; padding: 18px; }
  .ai-cta-header, .ai-cta-hint, .section-header, .page-header-inner, .page-title-row, .results-header, .calc-note { align-items: flex-start; flex-direction: column; gap: 10px; }
  .ai-cta-title { font-size: 16px; }
  .tool-grid { grid-template-columns: 1fr; }
  .tool-card { aspect-ratio: auto; min-height: 220px; }
  .why-list { grid-template-columns: 1fr !important; }
  .page-title { align-items: flex-start; flex-direction: column; }
  .page-actions { width: 100%; align-items: stretch; flex-direction: column; }
  .search-box { width: 100%; }
  .filter-bar { align-items: flex-start; }
  .chat-header { align-items: flex-start; gap: 10px; flex-direction: column; }
  .chat-actions { align-items: stretch; gap: 8px; flex-direction: column; }
  .chat-actions-left { flex-wrap: wrap; }
  .params-panel { position: static; }
  .calc-grid { grid-template-columns: 1fr 1fr; }
  .rec-body { grid-template-columns: 1fr; padding: 22px 18px; }
  .rec-spec-row { grid-template-columns: 1fr; }
  .rec-actions { grid-column: auto; grid-template-columns: 1fr; }
  .next-actions { padding: 0 18px; align-items: stretch; flex-direction: column; }
  .proj-card { grid-template-columns: 1fr; padding: 18px; }
  .proj-actions { grid-column: auto; justify-content: flex-start; flex-wrap: wrap; }
  .filter-group { align-items: flex-start; flex-wrap: wrap; }
  .job-card-header, .job-card-footer { align-items: flex-start; flex-direction: column; }
  .job-card-price-block { text-align: left; }
}