/* ==========================================================================
   HRskill.online - Master CSS Design System
   SaaS Clean & High-Density UI / 100% SVG Constrained / Zero Distortion
   ========================================================================== */

:root {
  --color-page: #F8FAFC;
  --color-surface: #FFFFFF;
  --color-subtle: #F1F5F9;
  --color-dark: #090D16;
  --color-dark-card: #0F172A;

  --color-text-primary: #0F1E36;
  --color-text-secondary: #475569;
  --color-text-tertiary: #94A3B8;

  --color-border: #E2E8F0;
  --color-border-medium: #CBD5E1;
  --color-border-dark: #1E293B;

  --color-primary: #2EAFA4;
  --color-primary-soft: #E6F7F6;
  --color-primary-hover: #238A81;
  --color-secondary: #FF6B5B;

  --color-success: #059669;
  --color-success-soft: #ECFDF5;

  --color-danger: #E11D48;
  --color-danger-soft: #FFF1F2;

  --color-warning: #D97706;
  --color-warning-soft: #FFFBEB;

  --color-indigo: #4F46E5;
  --color-indigo-soft: #EEF2FF;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.04);
  --shadow-card: 0 1px 3px 0 rgba(15, 23, 42, 0.06), 0 1px 2px -1px rgba(15, 23, 42, 0.04);
  --shadow-hover: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
  --shadow-elevated: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 8px 10px -6px rgba(15, 23, 42, 0.05);

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

/* Base Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 15px;
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-page);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: -0.01em;
}

a {
  color: inherit;
  text-decoration: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

button {
  cursor: pointer;
}

/* Explicit SVG global safety: SVGs inside text/buttons/icons won't blow up */
svg {
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
}

/* Layout wrap */
.wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Top Notification Bar */
.top-bar, .top-notice-bar {
  background: var(--color-dark);
  color: var(--color-text-tertiary);
  font-size: 12.5px;
  padding: 8px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  text-align: center;
}

.top-bar-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}

.top-badge, .notice-badge {
  background: rgba(37, 99, 235, 0.25);
  color: #60A5FA;
  border: 1px solid rgba(96, 165, 250, 0.3);
  font-size: 11px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 4px;
}

.top-bar-text, .notice-text {
  color: #E2E8F0;
  font-weight: 500;
}

/* Sticky Header & Navbar */
.site-header, header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(248, 250, 252, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner, .navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

/* Brand */
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 17.5px;
  font-weight: 800;
  color: var(--color-text-primary);
  text-decoration: none;
}

.brand-icon, .brand-logo {
  width: 34px;
  height: 34px;
  min-width: 34px;
  border-radius: var(--radius-sm);
  background: var(--color-text-primary);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-icon svg, .brand-logo svg {
  width: 18px;
  height: 18px;
}

.brand-name {
  color: var(--color-text-primary);
}

.brand-badge, .brand-sub-badge {
  font-size: 11px;
  font-weight: 700;
  color: var(--color-primary);
  background: var(--color-primary-soft);
  padding: 2px 7px;
  border-radius: 4px;
  border: 1px solid rgba(37, 99, 235, 0.15);
}

/* Navigation Links */
.main-nav, .nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
}

.nav-link svg {
  width: 15px;
  height: 15px;
  color: var(--color-text-tertiary);
  transition: color 0.15s ease;
}

.nav-link:hover {
  color: var(--color-text-primary);
  background: var(--color-subtle);
}

.nav-link:hover svg {
  color: var(--color-text-primary);
}

.nav-link.active {
  color: var(--color-primary);
  background: var(--color-primary-soft);
}

.nav-link.active svg {
  color: var(--color-primary);
}

/* Header Action Buttons */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-primary {
  background: var(--color-text-primary);
  color: #FFFFFF !important;
  font-size: 13px;
  font-weight: 600;
  padding: 7px 16px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.15s;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: #1E293B;
  transform: translateY(-1px);
}

.btn-ghost {
  background: #FFFFFF;
  color: var(--color-text-primary) !important;
  font-size: 13px;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-medium);
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.15s;
}

.btn-ghost:hover {
  background: #FFFFFF;
  border-color: var(--color-text-primary);
}

.btn-sm {
  padding: 5px 12px;
  font-size: 12px;
  border-radius: 6px;
}

.btn-block {
  width: 100%;
  justify-content: center;
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 6px;
  color: var(--color-text-primary);
}

/* Hero Section */
.hero-section {
  padding: 52px 0 36px;
  background: radial-gradient(circle at 80% 20%, rgba(37, 99, 235, 0.04) 0%, transparent 60%);
}

.hero-pill, .pill-highlight {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #FFFFFF;
  border: 1px solid var(--color-border-medium);
  padding: 4px 14px;
  border-radius: var(--radius-full);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: 18px;
  box-shadow: var(--shadow-sm);
}

.status-dot, .pill-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-success);
}

.hero-title, .hero-headline {
  font-size: clamp(28px, 3.8vw, 42px);
  font-weight: 850;
  line-height: 1.22;
  letter-spacing: -0.035em;
  color: var(--color-text-primary);
  margin-bottom: 14px;
}

.text-gradient, .gradient-text {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc, .hero-lead {
  font-size: 15.5px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  max-width: 680px;
  margin: 0 auto 28px;
}

/* Search Box */
.search-box {
  max-width: 680px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  background: #FFFFFF;
  border: 1.5px solid var(--color-border-medium);
  border-radius: var(--radius-lg);
  padding: 6px 8px 6px 16px;
  box-shadow: var(--shadow-card);
  transition: all 0.2s;
}

.search-box:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.search-icon {
  width: 18px;
  height: 18px;
  color: var(--color-text-tertiary);
  margin-right: 8px;
  flex-shrink: 0;
}

.search-box input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 14.5px;
  color: var(--color-text-primary);
  background: transparent;
}

.search-box input::placeholder {
  color: var(--color-text-tertiary);
}

.search-box button {
  padding: 8px 18px;
  font-size: 13.5px;
  border-radius: var(--radius-md);
}

.hot-tags {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 12.5px;
  color: var(--color-text-tertiary);
  margin-top: 12px;
}

.hot-tag {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  padding: 2px 10px;
  border-radius: 4px;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all 0.15s;
}

.hot-tag:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Daily Micro-Action Banner */
.daily-banner, .daily-action-banner {
  background: #FFFFFF;
  border: 1.5px solid #BFDBFE;
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin: 28px 0 36px;
  box-shadow: var(--shadow-card);
  display: flex;
  align-items: center;
  gap: 20px;
}

.daily-date {
  background: var(--color-primary-soft);
  border: 1px solid rgba(37, 99, 235, 0.2);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  text-align: center;
  flex-shrink: 0;
}

.day-num {
  display: block;
  font-size: 22px;
  font-weight: 850;
  color: var(--color-primary);
  line-height: 1;
}

.day-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--color-primary);
}

.daily-content {
  flex: 1;
}

.daily-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
  flex-wrap: wrap;
}

.daily-head h4 {
  font-size: 15.5px;
  font-weight: 750;
  color: var(--color-text-primary);
}

.daily-pill {
  font-size: 11px;
  font-weight: 700;
  background: var(--color-success-soft);
  color: #065F46;
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid #A7F3D0;
}

.daily-content p {
  font-size: 13.5px;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* Section Common Headers */
.section-block, .section-container {
  padding: 44px 0;
  border-top: 1px solid var(--color-border);
}

.section-head, .section-head-bar {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 26px;
  flex-wrap: wrap;
}

.section-tag, .sec-tag, .section-badge {
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-primary);
  background: var(--color-primary-soft);
  padding: 3px 8px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 6px;
  border: 1px solid rgba(37, 99, 235, 0.15);
}

.section-head h2, .sec-title-h2, .section-title {
  font-size: 24px;
  font-weight: 800;
  color: var(--color-text-primary);
  letter-spacing: -0.025em;
}

.section-head p, .sec-sub-p, .section-subtitle {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-top: 3px;
}

.section-more {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  padding: 6px 12px;
  background: var(--color-primary-soft);
  border-radius: var(--radius-sm);
  transition: all 0.15s;
}

.section-more:hover {
  background: #DBEAFE;
}

/* Page Header for Subpages */
.page-header {
  padding: 36px 0 20px;
}

.page-title {
  font-size: 26px;
  font-weight: 850;
  color: var(--color-text-primary);
  letter-spacing: -0.025em;
  margin-bottom: 4px;
}

.page-subtitle {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* Filter Tabs / Segmented Control */
.filter-tabs, .filter-segmented, .segmented-control {
  display: flex;
  gap: 6px;
  background: #FFFFFF;
  padding: 4px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-medium);
  box-shadow: var(--shadow-sm);
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.filter-btn, .f-btn, .seg-btn {
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  border: none;
  background: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all 0.15s;
}

.filter-btn.active, .f-btn.active, .seg-btn.active {
  background: var(--color-text-primary);
  color: #FFFFFF;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.filter-btn:hover:not(.active), .f-btn:hover:not(.active), .seg-btn:hover:not(.active) {
  background: var(--color-subtle);
  color: var(--color-text-primary);
}

/* Grids System */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.grid-3, .card-grid-3, .skills-container, .intel-items-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 22px;
}

.grid-4, .card-grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

/* Content Cards Base */
.skill-card, .resource-card, .intel-card, .content-card, .skill-item-card, .intel-single-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-card);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.skill-card:hover, .resource-card:hover, .intel-card:hover, .content-card:hover, .skill-item-card:hover {
  border-color: var(--color-border-medium);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

/* Card Header */
.card-top, .card-top-row, .skill-card-header, .intel-top-meta {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.icon-box, .card-icon-box, .icon-wrapper {
  width: 38px;
  height: 38px;
  min-width: 38px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.icon-box svg, .card-icon-box svg, .icon-wrapper svg {
  width: 18px;
  height: 18px;
}

.icon-blue { background: var(--color-primary-soft); color: var(--color-primary); }
.icon-emerald { background: var(--color-success-soft); color: var(--color-success); }
.icon-rose { background: var(--color-danger-soft); color: var(--color-danger); }
.icon-amber { background: var(--color-warning-soft); color: var(--color-warning); }
.icon-indigo { background: var(--color-indigo-soft); color: var(--color-indigo); }

.chip, .chip-tag, .runtime-badge {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-secondary);
  background: var(--color-subtle);
  border: 1px solid var(--color-border);
  padding: 3px 8px;
  border-radius: var(--radius-full);
}

.skill-handle {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--color-primary);
  background: var(--color-primary-soft);
  padding: 2px 7px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 6px;
}

.card-title, .skill-card h3, .resource-title, .intel-headline {
  font-size: 16px;
  font-weight: 750;
  color: var(--color-text-primary);
  line-height: 1.4;
  margin-bottom: 8px;
}

.card-summary, .skill-card p, .resource-desc, .intel-paragraph {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.55;
  margin-bottom: 14px;
}

/* Metric / Efficiency Bar */
.efficiency-bar, .spec-banner, .metric-efficiency-box {
  background: #F8FAFC;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 12px;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.efficiency-bar strong, .spec-banner strong, .metric-efficiency-box strong {
  color: var(--color-success);
  font-weight: 700;
}

.arrow-icon {
  width: 14px;
  height: 14px;
  color: var(--color-text-tertiary);
}

/* Tag List */
.tag-list, .meta-tag-list, .skill-tags-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.tag, .meta-tag-item, .sub-tag {
  font-size: 11.5px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--color-subtle);
  color: var(--color-text-secondary);
}

.tag-secure, .sub-tag.security {
  background: #FEF2F2;
  color: #991B1B;
  border: 1px solid #FEE2E2;
}

/* Card Footer */
.card-footer, .card-footer-actions, .skill-card-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--color-border);
  padding-top: 14px;
  margin-top: auto;
  font-size: 12px;
  color: var(--color-text-tertiary);
}

.btn-group {
  display: flex;
  gap: 6px;
}

/* Document Format Badges (Resource Page) */
.doc-badge, .doc-type-badge {
  font-size: 11px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 8px;
}

.badge-word, .doc-word { background: var(--color-primary-soft); color: #1D4ED8; border: 1px solid #DBEAFE; }
.badge-excel, .doc-excel { background: var(--color-success-soft); color: #065F46; border: 1px solid #A7F3D0; }
.badge-ppt, .doc-ppt { background: var(--color-warning-soft); color: #92400E; border: 1px solid #FDE68A; }
.badge-pdf, .doc-pdf { background: var(--color-danger-soft); color: #991B1B; border: 1px solid #FEE2E2; }

.resource-card h4 {
  font-size: 15px;
  font-weight: 750;
  color: var(--color-text-primary);
  margin-bottom: 6px;
}

.res-desc {
  font-size: 12.5px;
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-bottom: 12px;
}

.res-meta {
  font-size: 11.5px;
  color: var(--color-text-tertiary);
  margin-bottom: 12px;
  border-top: 1px solid var(--color-border);
  padding-top: 8px;
}

.resource-meta {
  display: flex;
  justify-content: space-between;
  font-size: 11.5px;
  color: var(--color-text-tertiary);
  border-top: 1px solid var(--color-border);
  padding-top: 10px;
  margin-top: auto;
  margin-bottom: 10px;
}

/* Intel / Review Badges */
.verdict-badge, .verdict-tag, .intel-verdict {
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  display: inline-block;
  margin-bottom: 10px;
}

.intel-card h4 {
  font-size: 15px;
  font-weight: 750;
  color: var(--color-text-primary);
  margin-bottom: 6px;
}

.verdict-pass, .verdict-tag.pass { background: var(--color-success-soft); color: #065F46; border: 1px solid #A7F3D0; }
.verdict-caution, .verdict-tag.caution { background: var(--color-warning-soft); color: #92400E; border: 1px solid #FDE68A; }

.intel-specs, .intel-key-specs {
  background: var(--color-subtle);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 12px;
  color: var(--color-text-secondary);
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 14px;
}

.intel-specs strong, .intel-key-specs strong {
  color: var(--color-text-primary);
}

.bg-white {
  background: #FFFFFF;
}

.community-left {
  flex: 1;
}

.community-right {
  flex-shrink: 0;
}

.label-green {
  font-size: 11px;
  font-weight: 750;
  color: #34D399;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
  display: block;
}

/* Workshop Split & Sandbox */
.workshop-split {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 28px;
  align-items: stretch;
  margin-top: 24px;
}

.workshop-menu {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

.scenario-card {
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-medium);
  cursor: pointer;
  transition: all 0.15s;
  background: #FFFFFF;
  margin-bottom: 10px;
}

.scenario-card.active {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
}

.scenario-card-title {
  font-size: 14.5px;
  font-weight: 750;
  color: var(--color-text-primary);
  margin-bottom: 3px;
}

.scenario-card-desc {
  font-size: 12.5px;
  color: var(--color-text-secondary);
}

.sandbox-panel, .sandbox-app-box {
  background: var(--color-dark);
  color: #F8FAFC;
  border-radius: var(--radius-xl);
  padding: 26px;
  border: 1px solid var(--color-border-dark);
  box-shadow: var(--shadow-elevated);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.sandbox-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-border-dark);
  margin-bottom: 16px;
}

.sandbox-title {
  font-size: 14.5px;
  font-weight: 700;
  color: #93C5FD;
}

.sandbox-badge {
  font-size: 11px;
  background: #1E293B;
  color: #94A3B8;
  padding: 2px 8px;
  border-radius: 4px;
}

.form-row, .form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}

.form-group, .form-full {
  margin-bottom: 12px;
}

.form-group label, .input-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: #94A3B8;
  margin-bottom: 6px;
}

.dark-input, .dark-select {
  width: 100%;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: #0F172A;
  border: 1px solid #334155;
  color: #FFFFFF;
  font-size: 13px;
  outline: none;
  font-family: inherit;
}

.dark-input:focus, .dark-select:focus {
  border-color: #3B82F6;
}

.btn-calculate, .btn-trigger-calc {
  background: var(--color-primary);
  color: #FFFFFF;
  font-weight: 700;
  font-size: 13.5px;
  padding: 10px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: 0.15s;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 8px;
}

.btn-calculate:hover, .btn-trigger-calc:hover {
  background: var(--color-primary-hover);
}

.result-output, .sandbox-output-result {
  margin-top: 16px;
  padding: 14px 16px;
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid #334155;
  border-radius: var(--radius-md);
  font-size: 12.5px;
  line-height: 1.6;
}

.result-header {
  color: #34D399;
  font-weight: 700;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Pipeline Showcase */
.pipeline-card, .pipeline-banner-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-card);
}

.pipeline-tag {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-indigo);
  background: var(--color-indigo-soft);
  padding: 3px 10px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(79, 70, 229, 0.15);
}

.pipeline-steps, .pipeline-steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin: 20px 0;
}

.step-node {
  background: var(--color-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
}

.step-num, .step-num-badge {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: var(--color-text-primary);
  color: #FFFFFF;
  font-size: 11px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
}

.step-title {
  font-size: 14px;
  font-weight: 750;
  color: var(--color-text-primary);
  margin-bottom: 4px;
}

.step-desc {
  font-size: 12px;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* Community Banner */
.community-banner, .community-cta-box, .org-hub-card {
  background: var(--color-dark);
  border-radius: var(--radius-xl);
  padding: 40px;
  color: #FFFFFF;
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 36px;
  align-items: center;
  margin: 48px 0;
  box-shadow: var(--shadow-elevated);
}

.community-badge {
  font-size: 12px;
  font-weight: 700;
  color: #34D399;
  text-transform: uppercase;
  margin-bottom: 8px;
  display: block;
}

.community-title {
  font-size: 24px;
  font-weight: 850;
  margin-bottom: 10px;
}

.community-desc {
  font-size: 13.5px;
  color: #94A3B8;
  line-height: 1.6;
  margin-bottom: 20px;
}

.checklist, .checklist-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
  list-style: none;
}

.check-item, .check-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #E2E8F0;
}

.check-item svg {
  color: #34D399;
  width: 16px;
  height: 16px;
  min-width: 16px;
}

.qr-card, .qr-wrapper, .wechat-box {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 22px;
  color: var(--color-text-primary);
  text-align: center;
}

.qr-placeholder, .qr-box-mock {
  width: 120px;
  height: 120px;
  background: var(--color-subtle);
  border: 1.5px dashed var(--color-border-medium);
  border-radius: var(--radius-md);
  margin: 0 auto 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 11.5px;
  color: var(--color-text-secondary);
}

.qr-placeholder svg, .qr-box-mock svg {
  width: 24px;
  height: 24px;
  margin-bottom: 4px;
  color: var(--color-text-secondary);
}

.qr-card h4 {
  font-size: 14.5px;
  font-weight: 800;
  margin-bottom: 2px;
}

.qr-card p {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-bottom: 10px;
}

/* Modal Overlay & Dialog */
.modal-overlay, .modal-wrapper {
  position: fixed;
  inset: 0;
  background: rgba(9, 13, 22, 0.65);
  backdrop-filter: blur(4px);
  z-index: 120;
  display: none;
  place-items: center;
  padding: 20px;
}

.modal-overlay.open, .modal-wrapper.open {
  display: grid;
}

.modal-dialog, .modal-content-card {
  background: #FFFFFF;
  width: 100%;
  max-width: 720px;
  max-height: 88vh;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-elevated);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.modal-header, .modal-top-bar {
  padding: 16px 22px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-subtle);
}

.modal-title {
  font-weight: 750;
  font-size: 15px;
  color: var(--color-text-primary);
}

.btn-modal-close {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--color-text-tertiary);
  display: grid;
  place-items: center;
}

.btn-modal-close:hover {
  color: var(--color-text-primary);
}

.btn-modal-close svg {
  width: 18px;
  height: 18px;
}

.modal-body, .modal-scroll-body {
  padding: 22px;
  overflow-y: auto;
  font-size: 13.5px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.code-pre-box, pre {
  background: var(--color-dark);
  color: #E2E8F0;
  border-radius: var(--radius-md);
  padding: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  margin: 12px 0;
  overflow-x: auto;
  white-space: pre-wrap;
}

/* Skill detail (markdown rendered) inside modal */
.skill-detail-meta {
  font-size: 12px;
  color: #64748B;
  background: #F1F5F9;
  border: 1px solid #E2E8F0;
  border-radius: 6px;
  padding: 6px 10px;
  margin-bottom: 12px;
}
.skill-detail-body .md-h { color: var(--color-text); font-weight: 700; margin: 16px 0 8px; line-height: 1.4; }
.skill-detail-body .md-ul, .skill-detail-body .md-ol { padding-left: 20px; margin: 8px 0; }
.skill-detail-body .md-ul li, .skill-detail-body .md-ol li { margin: 4px 0; }
.skill-detail-body .md-quote { border-left: 3px solid var(--color-primary); padding: 4px 12px; margin: 10px 0; color: #475569; background: #F8FAFC; }
.skill-detail-body code { background: #EEF2FF; color: #4338CA; padding: 1px 5px; border-radius: 4px; font-family: var(--font-mono); font-size: 12px; }
.skill-detail-body a { color: var(--color-primary); }

/* Toast Floating Notification */
.toast, .toast-popup {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(30px);
  background: var(--color-dark);
  color: #FFFFFF;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  box-shadow: var(--shadow-elevated);
  opacity: 0;
  pointer-events: none;
  transition: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 150;
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--color-border-dark);
}

.toast.show, .toast-popup.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Footer */
.site-footer, footer.footer {
  border-top: 1px solid var(--color-border);
  padding: 36px 0;
  background: #FFFFFF;
  text-align: center;
  font-size: 13px;
  color: var(--color-text-tertiary);
  margin-top: 48px;
}

.footer-brand {
  font-weight: 750;
  color: var(--color-text-primary);
  font-size: 14.5px;
  margin-bottom: 4px;
}

.footer-copyright {
  color: var(--color-text-tertiary);
  font-size: 12px;
}

/* Responsive Breakpoints */
@media (max-width: 960px) {
  .hero-title { font-size: 30px; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .workshop-split { grid-template-columns: 1fr; }
  .pipeline-steps, .pipeline-steps-grid { grid-template-columns: repeat(2, 1fr); }
  .community-banner { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .nav-actions {
    display: none;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #FFFFFF;
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: 16px 24px;
    gap: 12px;
    box-shadow: var(--shadow-elevated);
  }

  .main-nav.mobile-open {
    display: flex;
  }

  .daily-banner {
    flex-direction: column;
    align-items: flex-start;
  }

  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }

  .pipeline-steps {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}

/* ---- 深度文章（intel/workshop 数据驱动区块） ---- */
.verdict-tag.danger { background: #FFF1F2; color: #991B1B; border: 1px solid #FECDD3; }
.article-card { flex-direction: column; }
.article-card .btn-ghost { text-align: center; }
.article-body { font-size: 13.5px; color: #334155; line-height: 1.75; }
.article-body .md-h { color: var(--color-text); font-weight: 700; margin: 16px 0 8px; line-height: 1.4; }
.article-body .md-ul, .article-body .md-ol { padding-left: 20px; margin: 8px 0; }
.article-body .md-ul li, .article-body .md-ol li { margin: 4px 0; }
.article-body .md-quote { border-left: 3px solid var(--color-primary); padding: 4px 12px; margin: 10px 0; color: #475569; background: #F8FAFC; }
.article-body .md-p { margin: 8px 0; }
.article-body .md-pre { background: #0F172A; color: #E2E8F0; padding: 12px 14px; border-radius: 8px; overflow-x: auto; font-size: 12.5px; line-height: 1.6; margin: 10px 0; white-space: pre-wrap; }
.article-body .md-hr { border: 0; border-top: 1px solid #E2E8F0; margin: 14px 0; }
.article-body code { background: #F1F5F9; padding: 1px 5px; border-radius: 4px; font-size: 12.5px; }
.article-body .md-pre code { background: transparent; padding: 0; }
.article-body a { color: var(--color-primary); font-weight: 600; }