/* ═══════════════════════════════════════════════════════════
   AI 创业机会追踪器 — Design v1.0
   Aesthetic: Deep Tech · 参考 bysoft.net.cn
   ═══════════════════════════════════════════════════════════ */

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

:root {
  /* Palette */
  --c-bg:           #04091A;
  --c-surface:      #080F24;
  --c-surface-2:    #0D1830;
  --c-border:       rgba(255,255,255,0.08);
  --c-border-hover: rgba(37,99,235,0.4);

  --c-primary:      #2563EB;
  --c-primary-light:#3B82F6;
  --c-primary-dark: #1D4ED8;
  --c-cyan:         #06B6D4;
  --c-cyan-light:   #22D3EE;

  --c-text-1:       #F1F5F9;
  --c-text-2:       #94A3B8;
  --c-text-3:       #64748B;
  --c-text-4:       #334155;

  --c-accent:       #F59E0B;
  --c-green:        #10B981;
  --c-red:          #EF4444;

  /* Gradients */
  --g-primary:      linear-gradient(135deg, #2563EB 0%, #06B6D4 100%);
  --g-hero:         radial-gradient(ellipse 80% 60% at 50% -10%, rgba(37,99,235,0.35) 0%, transparent 60%),
                    radial-gradient(ellipse 50% 40% at 80% 60%, rgba(6,182,212,0.12) 0%, transparent 60%),
                    var(--c-bg);
  --g-card:         linear-gradient(145deg, rgba(37,99,235,0.08), rgba(6,182,212,0.04));

  /* Spacing */
  --section-py:     clamp(60px, 8vw, 100px);
  --container:      min(1200px, 100%);

  /* Radius */
  --radius-sm:      8px;
  --radius-md:      14px;
  --radius-lg:      20px;
  --radius-xl:      28px;
  --radius-full:    999px;

  /* Shadows */
  --shadow-sm:      0 2px 8px rgba(0,0,0,0.3);
  --shadow-md:      0 8px 32px rgba(0,0,0,0.4);
  --shadow-lg:      0 20px 60px rgba(0,0,0,0.5);
  --shadow-blue:    0 0 40px rgba(37,99,235,0.2);
  --glow-line:      0 0 0 1px rgba(37,99,235,0.3), 0 0 20px rgba(37,99,235,0.1);

  /* Typography */
  --font-display:   'Outfit', 'Noto Sans SC', sans-serif;
  --font-body:      'Noto Sans SC', sans-serif;

  /* Motion */
  --ease-out:       cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring:    cubic-bezier(0.34, 1.56, 0.64, 1);
  --t-fast:         150ms;
  --t-med:          280ms;
  --t-slow:         500ms;
}

/* ─── Base ──────────────────────────────────────────────── */
html { scroll-behavior: smooth; scrollbar-width: thin; scrollbar-color: rgba(37,99,235,0.4) transparent; }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(37,99,235,0.4); border-radius: 3px; }
::selection { background: rgba(37,99,235,0.35); color: #fff; }

body {
  font-family: var(--font-body);
  background: var(--c-bg);
  color: var(--c-text-2);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
button { font-family: var(--font-body); cursor: pointer; border: none; outline: none; }
img { max-width: 100%; display: block; }
code {
  font-family: ui-monospace, 'SF Mono', Menlo, monospace;
  font-size: 0.9em;
  background: rgba(37,99,235,0.1);
  border: 1px solid rgba(37,99,235,0.2);
  border-radius: 4px;
  padding: 1px 6px;
  color: var(--c-cyan-light);
}

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ─── Layout ────────────────────────────────────────────── */
.container { max-width: var(--container); margin: 0 auto; padding: 0 clamp(16px, 4vw, 40px); }
.section { padding: var(--section-py) 0; position: relative; }
.section--alt { background: var(--c-surface); }

.grid-texture {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(37,99,235,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 0%, transparent 70%);
}

/* ─── Nav ───────────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(4,9,26,0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--c-border);
  transition: background var(--t-med);
}

.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; gap: 24px;
}

.nav__logo { display: flex; align-items: center; gap: 12px; }
.nav__logo-mark { display: flex; flex-shrink: 0; }
.nav__logo-mark svg { display: block; }
.nav__logo-text { font-family: var(--font-display); font-weight: 700; font-size: 17px; color: var(--c-text-1); letter-spacing: -0.01em; }
.nav__logo-sub { font-size: 11px; color: var(--c-text-3); letter-spacing: 0.08em; display: none; }
@media (min-width: 900px) { .nav__logo-sub { display: block; } }

.nav__links { display: flex; list-style: none; gap: 32px; }
.nav__link {
  position: relative;
  font-size: 15px; font-weight: 500; color: var(--c-text-2);
  transition: color var(--t-fast);
  padding: 6px 0;
}
.nav__link::after {
  content: ''; position: absolute; bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--g-primary);
  transition: width var(--t-med) var(--ease-out);
}
.nav__link:hover, .nav__link[aria-current="page"] { color: var(--c-text-1); }
.nav__link:hover::after, .nav__link[aria-current="page"]::after { width: 100%; }

.nav__cta { display: inline-flex; align-items: center; height: 40px; }

.nav__mobile-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; padding: 8px;
}
.nav__mobile-toggle span {
  display: block; width: 22px; height: 2px;
  background: var(--c-text-1);
  border-radius: 1px;
  transition: transform var(--t-med), opacity var(--t-med);
}

@media (max-width: 820px) {
  .nav__links {
    position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; gap: 0;
    background: rgba(4,9,26,0.98);
    border-bottom: 1px solid var(--c-border);
    padding: 8px 0 16px;
    display: none;
  }
  .nav__links.open { display: flex; }
  .nav__link { padding: 14px clamp(16px, 4vw, 40px); }
  .nav__link::after { display: none; }
  .nav__mobile-toggle { display: flex; }
  .nav__cta { display: none; }
}

/* ─── Buttons ───────────────────────────────────────────── */
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 26px;
  font-size: 15px; font-weight: 600; color: #fff;
  background: var(--g-primary);
  border-radius: var(--radius-full);
  transition: transform var(--t-fast) var(--ease-spring), box-shadow var(--t-med);
  box-shadow: 0 4px 20px rgba(37,99,235,0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(37,99,235,0.5); }
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 26px;
  font-size: 15px; font-weight: 500; color: var(--c-text-1);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-full);
  transition: border-color var(--t-med), background var(--t-med), transform var(--t-fast) var(--ease-spring);
}
.btn-ghost:hover { border-color: var(--c-border-hover); background: rgba(37,99,235,0.1); transform: translateY(-2px); }
.btn-block { width: 100%; margin-bottom: 10px; }

/* ─── Hero ──────────────────────────────────────────────── */
.hero {
  position: relative;
  background: var(--g-hero);
  padding: 160px 0 100px;
  overflow: hidden;
}

.hero .container { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: center; position: relative; }

.hero__badge {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 7px 16px;
  font-size: 13px; font-weight: 500; color: var(--c-cyan-light);
  background: rgba(6,182,212,0.08);
  border: 1px solid rgba(6,182,212,0.25);
  border-radius: var(--radius-full);
  margin-bottom: 28px;
}
.hero__badge-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--c-cyan-light);
  box-shadow: 0 0 12px var(--c-cyan-light);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(0.85); } }

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(34px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--c-text-1);
  margin-bottom: 22px;
}
.hero__title .accent {
  background: var(--g-primary);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

.hero__subtitle {
  font-size: clamp(15px, 1.6vw, 17px);
  color: var(--c-text-2);
  max-width: 560px;
  margin-bottom: 36px;
}

.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 48px; }

.hero__stats { display: flex; gap: clamp(24px, 4vw, 48px); flex-wrap: wrap; }
.hero__stat { display: flex; flex-direction: column; }
.hero__stat-value {
  font-family: var(--font-display);
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 700;
  background: var(--g-primary);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
  line-height: 1.2;
}
.hero__stat-label { font-size: 13px; color: var(--c-text-3); margin-top: 4px; }

/* Hero illustration */
.hero__visual { position: relative; display: flex; justify-content: center; align-items: center; min-height: 380px; }
.hero__illustration { position: relative; width: 320px; height: 320px; display: flex; justify-content: center; align-items: center; }
.hero__illustration-ring {
  position: absolute; inset: 0;
  border: 1px solid rgba(37,99,235,0.25);
  border-radius: 50%;
  animation: spin 30s linear infinite;
}
.hero__illustration-ring::before {
  content: ''; position: absolute; top: -4px; left: 50%;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--c-cyan-light);
  box-shadow: 0 0 12px var(--c-cyan-light);
}
.hero__illustration-ring:nth-child(2) {
  inset: 40px; border-color: rgba(6,182,212,0.25);
  animation-duration: 22s; animation-direction: reverse;
}
.hero__illustration-ring:nth-child(3) {
  inset: 80px; border-color: rgba(37,99,235,0.35);
  animation-duration: 15s;
}
@keyframes spin { to { transform: rotate(360deg); } }

.hero__illustration-center {
  position: relative;
  width: 140px; height: 140px;
  border-radius: 50%;
  background: var(--g-card);
  border: 1px solid rgba(37,99,235,0.3);
  display: flex; justify-content: center; align-items: center;
  box-shadow: var(--shadow-blue), inset 0 0 40px rgba(37,99,235,0.15);
  color: var(--c-cyan-light);
}
.hero__illustration-orbit { position: absolute; inset: 0; animation: spin 18s linear infinite; }
.hero__illustration-orbit:nth-child(5) { animation-duration: 12s; animation-direction: reverse; }
.hero__illustration-orbit:nth-child(6) { animation-duration: 25s; }
.hero__illustration-orbit-dot {
  position: absolute; top: 12px; left: 50%;
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--c-primary-light);
  box-shadow: 0 0 10px var(--c-primary-light);
}
.hero__illustration-orbit:nth-child(6) .hero__illustration-orbit-dot { background: var(--c-green); box-shadow: 0 0 10px var(--c-green); }

.hero__float-card {
  position: absolute;
  display: flex; flex-direction: column; gap: 2px;
  padding: 12px 18px;
  background: rgba(8,15,36,0.9);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  backdrop-filter: blur(8px);
  font-size: 12px; color: var(--c-text-3);
  box-shadow: var(--shadow-md);
  animation: floaty 6s ease-in-out infinite;
}
.hero__float-card::before {
  content: ''; position: absolute; top: -1px; left: 16px; right: 16px;
  height: 1px; background: var(--g-primary); opacity: 0.6;
}
.hero__float-card .float-card__value { font-weight: 700; color: var(--c-text-1); font-size: 14px; }
.hero__float-card-1 { top: 12%; right: 4%; }
.hero__float-card-2 { bottom: 10%; left: 2%; animation-delay: -3s; }
@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero__visual { min-height: 300px; margin-top: 24px; }
}

/* ─── Section headers ───────────────────────────────────── */
.section-header { text-align: center; max-width: 720px; margin: 0 auto clamp(40px, 5vw, 64px); position: relative; }
.section-label {
  display: inline-block;
  font-size: 13px; font-weight: 600; letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--c-cyan-light);
  background: rgba(6,182,212,0.08);
  border: 1px solid rgba(6,182,212,0.2);
  border-radius: var(--radius-full);
  padding: 5px 14px;
  margin-bottom: 18px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--c-text-1);
  line-height: 1.25;
  margin-bottom: 14px;
}
.section-desc { font-size: 15px; color: var(--c-text-3); }

/* ─── Filter bar ────────────────────────────────────────── */
.filter-bar {
  display: flex; gap: 14px; flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 40px;
  position: relative;
}
.filter-select {
  appearance: none;
  -webkit-appearance: none;
  font-family: var(--font-body);
  font-size: 14px; font-weight: 500;
  color: var(--c-text-1);
  background: var(--c-surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") no-repeat right 14px center;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-full);
  padding: 10px 40px 10px 18px;
  cursor: pointer;
  transition: border-color var(--t-med), background-color var(--t-med);
}
.filter-select:hover { border-color: var(--c-border-hover); }
.filter-select:focus { outline: none; border-color: var(--c-primary); box-shadow: 0 0 0 3px rgba(37,99,235,0.15); }

/* ─── Project cards ─────────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 22px;
  position: relative;
}

.project-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: border-color var(--t-med), box-shadow var(--t-med), transform var(--t-med) var(--ease-spring);
  display: flex; flex-direction: column;
}
.project-card:hover {
  border-color: rgba(37,99,235,0.4);
  box-shadow: var(--glow-line), var(--shadow-blue);
  transform: translateY(-6px);
}
.project-card[data-industry="negative"] { border-style: dashed; opacity: 0.92; }

.project-card__thumb {
  height: 120px;
  position: relative;
  overflow: hidden;
  display: flex; align-items: flex-end;
  padding: 14px 18px;
}
.project-card__thumb-bg { position: absolute; inset: 0; }
.project-card__thumb-bg::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(4,9,26,0.65) 0%, transparent 65%);
}
.project-card[data-industry="construction"] .project-card__thumb-bg { background: linear-gradient(135deg, #7C2D12 0%, #EA580C 55%, #F59E0B 100%); }
.project-card[data-industry="legal"] .project-card__thumb-bg { background: linear-gradient(135deg, #1E3A5F 0%, #2563EB 55%, #3B82F6 100%); }
.project-card[data-industry="medical"] .project-card__thumb-bg { background: linear-gradient(135deg, #064E3B 0%, #059669 55%, #10B981 100%); }
.project-card[data-industry="retail"] .project-card__thumb-bg { background: linear-gradient(135deg, #4C1D95 0%, #7C3AED 55%, #A855F7 100%); }
.project-card[data-industry="security"] .project-card__thumb-bg { background: linear-gradient(135deg, #7F1D1D 0%, #DC2626 55%, #F87171 100%); }
.project-card[data-industry="manufacturing"] .project-card__thumb-bg { background: linear-gradient(135deg, #164E63 0%, #0891B2 55%, #06B6D4 100%); }
.project-card[data-industry="logistics"] .project-card__thumb-bg { background: linear-gradient(135deg, #374151 0%, #6B7280 55%, #9CA3AF 100%); }
.project-card[data-industry="education"] .project-card__thumb-bg { background: linear-gradient(135deg, #831843 0%, #DB2777 55%, #EC4899 100%); }
.project-card[data-industry="negative"] .project-card__thumb-bg { background: linear-gradient(135deg, #111827 0%, #374151 55%, #4B5563 100%); }

.project-card__thumb-icons {
  position: relative; z-index: 1;
  display: flex; gap: 8px; flex-wrap: wrap;
}
.project-card__thumb-icon {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; font-weight: 600; color: #fff;
  background: rgba(0,0,0,0.45);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--radius-full);
  padding: 4px 12px;
  backdrop-filter: blur(4px);
}
.project-card__thumb-icon--neg { color: #FCA5A5; border-color: rgba(252,165,165,0.4); }

.project-card__body { padding: 18px 20px 20px; display: flex; flex-direction: column; flex: 1; }

.project-card__top { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 6px; }
.project-card__title {
  font-family: var(--font-display);
  font-size: 18px; font-weight: 700;
  color: var(--c-text-1);
  letter-spacing: -0.01em;
}
.project-card__date { font-size: 12px; color: var(--c-text-4); white-space: nowrap; }

.project-card__funding {
  font-family: var(--font-display);
  font-size: 15px; font-weight: 600;
  color: var(--c-cyan-light);
  margin-bottom: 10px;
}
.project-card__desc {
  font-size: 13.5px; color: var(--c-text-2);
  line-height: 1.6;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  margin-bottom: 14px;
  flex: 1;
}

.project-card__footer {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid var(--c-border);
}
.project-card__stars { font-size: 13px; letter-spacing: 1px; color: var(--c-accent); }
.project-card__stars .dim { opacity: 0.25; }
.project-card__tags { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.project-card__tag {
  font-size: 11px; font-weight: 500;
  color: var(--c-text-3);
  background: rgba(37,99,235,0.08);
  border: 1px solid rgba(37,99,235,0.15);
  border-radius: var(--radius-full);
  padding: 2px 10px;
}

.project-card__open {
  display: flex; align-items: center; gap: 6px;
  margin-top: 12px;
  font-size: 13px; font-weight: 500;
  color: var(--c-cyan-light);
  transition: gap var(--t-med);
}
.project-card:hover .project-card__open { gap: 10px; }

.load-more { text-align: center; margin-top: 40px; }
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  color: var(--c-text-3);
  border: 1px dashed var(--c-border);
  border-radius: var(--radius-lg);
}

/* ─── Methodology ───────────────────────────────────────── */
.methodology-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-bottom: 56px;
}

.method-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: border-color var(--t-med), box-shadow var(--t-med), transform var(--t-med) var(--ease-spring);
}
.method-card:hover {
  border-color: var(--c-border-hover);
  box-shadow: var(--glow-line);
  transform: translateY(-4px);
}
.method-card__icon {
  width: 52px; height: 52px;
  display: flex; align-items: center; justify-content: center;
  background: var(--g-card);
  border: 1px solid rgba(37,99,235,0.25);
  border-radius: var(--radius-md);
  color: var(--c-cyan-light);
  margin-bottom: 18px;
}
.method-card__title {
  font-family: var(--font-display);
  font-size: 17px; font-weight: 700;
  color: var(--c-text-1);
  margin-bottom: 10px;
}
.method-card__desc { font-size: 13.5px; color: var(--c-text-2); line-height: 1.65; }

.actionability-scale {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 32px;
}
.scale-title {
  font-family: var(--font-display);
  font-size: 17px; font-weight: 700;
  color: var(--c-text-1);
  margin-bottom: 20px;
}
.scale-items { display: flex; flex-direction: column; gap: 12px; }
.scale-item {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 16px; align-items: center;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--c-border);
}
.scale-item.scale-negative { background: rgba(239,68,68,0.05); border-color: rgba(239,68,68,0.2); }
.scale-stars { font-size: 14px; letter-spacing: 2px; color: var(--c-accent); white-space: nowrap; }
.scale-item.scale-negative .scale-stars { color: var(--c-red); }
.scale-desc { font-size: 13.5px; color: var(--c-text-2); }
@media (max-width: 560px) {
  .scale-item { grid-template-columns: 1fr; gap: 4px; }
}

/* ─── About ─────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.about-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 28px 26px;
}
.about-card__title {
  font-family: var(--font-display);
  font-size: 16px; font-weight: 700;
  color: var(--c-text-1);
  margin-bottom: 14px;
}
.about-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.about-list li {
  font-size: 14px; color: var(--c-text-2);
  padding-left: 18px;
  position: relative;
}
.about-list li::before {
  content: '';
  position: absolute; left: 0; top: 0.62em;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--g-primary);
}

/* ─── Footer ────────────────────────────────────────────── */
.footer {
  position: relative;
  border-top: 1px solid var(--c-border);
  background: var(--c-surface);
  padding: 48px 0 32px;
}
.footer__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 32px; flex-wrap: wrap;
}
.footer__logo {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-weight: 700; font-size: 16px;
  color: var(--c-text-1);
}
.footer__tagline { font-size: 12px; color: var(--c-text-3); margin-top: 6px; }
.footer__links { display: flex; gap: 24px; flex-wrap: wrap; }
.footer__links a { font-size: 14px; color: var(--c-text-3); transition: color var(--t-fast); }
.footer__links a:hover { color: var(--c-text-1); }
.footer__copyright { font-size: 12.5px; color: var(--c-text-4); line-height: 1.8; }

/* ─── Detail page ───────────────────────────────────────── */
.detail-hero {
  position: relative;
  background: var(--g-hero);
  padding: 130px 0 60px;
  overflow: hidden;
}
.detail-hero__content { position: relative; max-width: 860px; }

.breadcrumb { display: flex; align-items: center; gap: 10px; font-size: 13px; margin-bottom: 24px; }
.breadcrumb a { color: var(--c-text-3); transition: color var(--t-fast); }
.breadcrumb a:hover { color: var(--c-cyan-light); }
.breadcrumb__sep { color: var(--c-text-4); }
.breadcrumb__current { color: var(--c-text-2); font-weight: 500; }

.detail-hero__meta { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 20px; }
.detail-badge {
  display: inline-flex; align-items: center;
  font-size: 12.5px; font-weight: 600;
  color: var(--c-text-1);
  background: rgba(37,99,235,0.12);
  border: 1px solid rgba(37,99,235,0.3);
  border-radius: var(--radius-full);
  padding: 5px 14px;
}
.detail-badge--stage { color: var(--c-cyan-light); background: rgba(6,182,212,0.1); border-color: rgba(6,182,212,0.3); }
.detail-badge--action { color: var(--c-accent); background: rgba(245,158,11,0.1); border-color: rgba(245,158,11,0.3); }
.detail-badge--neg { color: #FCA5A5; background: rgba(239,68,68,0.1); border-color: rgba(239,68,68,0.3); }

.detail-hero__title {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--c-text-1);
  line-height: 1.15;
  margin-bottom: 14px;
}
.detail-hero__tagline { font-size: clamp(15px, 1.8vw, 18px); color: var(--c-text-2); margin-bottom: 36px; max-width: 640px; }

.detail-hero__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
}
.detail-stat {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 14px 18px;
}
.detail-stat__label { display: block; font-size: 12px; color: var(--c-text-3); margin-bottom: 4px; }
.detail-stat__value { font-family: var(--font-display); font-size: 17px; font-weight: 600; color: var(--c-text-1); }

/* Detail main layout */
.detail-main { position: relative; padding: clamp(48px, 6vw, 72px) 0; }
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 28px;
  align-items: start;
  position: relative;
}
@media (max-width: 980px) { .detail-grid { grid-template-columns: 1fr; } }

.detail-section { margin-bottom: 40px; }
.detail-section__title {
  font-family: var(--font-display);
  font-size: 20px; font-weight: 700;
  color: var(--c-text-1);
  margin-bottom: 16px;
  display: flex; align-items: center; gap: 10px;
}
.detail-section__title::before {
  content: '';
  width: 4px; height: 20px;
  background: var(--g-primary);
  border-radius: 2px;
}

.detail-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}
.detail-card__text { font-size: 14.5px; color: var(--c-text-2); line-height: 1.75; }

.workflow-info { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.workflow-item {
  display: flex; flex-direction: column; gap: 3px;
  padding: 12px 14px;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
}
.workflow-label { font-size: 12px; color: var(--c-text-3); }
.workflow-value { font-size: 14px; font-weight: 500; color: var(--c-text-1); }

/* Funding timeline */
.funding-timeline { position: relative; padding-left: 28px; }
.funding-timeline::before {
  content: '';
  position: absolute; left: 8px; top: 8px; bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--c-primary), transparent);
}
.funding-event { position: relative; }
.funding-event__dot {
  position: absolute; left: -28px; top: 6px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--c-bg);
  border: 2px solid var(--c-primary-light);
  box-shadow: 0 0 12px rgba(37,99,235,0.5);
}
.funding-event__dot::after {
  content: '';
  position: absolute; inset: 4px;
  border-radius: 50%;
  background: var(--c-primary-light);
}
.funding-event__header { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 4px; }
.funding-event__stage {
  font-size: 12px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--c-cyan-light);
}
.funding-event__date { font-size: 12.5px; color: var(--c-text-4); }
.funding-event__amount { font-family: var(--font-display); font-size: 20px; font-weight: 700; color: var(--c-text-1); margin-bottom: 6px; }
.funding-event__investors { font-size: 13.5px; color: var(--c-text-2); }
.funding-event__investors strong { color: var(--c-text-1); }

/* Analysis */
.analysis-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.analysis-item {
  padding: 14px 16px;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
}
.analysis-label {
  display: block;
  font-size: 12px; font-weight: 600; letter-spacing: 0.06em;
  color: var(--c-cyan-light);
  margin-bottom: 8px;
}
.analysis-value { font-size: 13.5px; color: var(--c-text-2); line-height: 1.65; }

/* Sources */
.sources-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.sources-list li {
  font-size: 13.5px;
  padding-left: 18px;
  position: relative;
}
.sources-list li::before {
  content: '↗';
  position: absolute; left: 0;
  color: var(--c-primary-light);
}
.sources-list a { color: var(--c-text-2); transition: color var(--t-fast); word-break: break-all; }
.sources-list a:hover { color: var(--c-cyan-light); }

/* Sidebar */
.detail-sidebar { display: flex; flex-direction: column; gap: 20px; position: sticky; top: 92px; }
.sidebar-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 22px;
}
.sidebar-card__title {
  font-family: var(--font-display);
  font-size: 15px; font-weight: 700;
  color: var(--c-text-1);
  margin-bottom: 16px;
}

.quick-judge { display: flex; flex-direction: column; gap: 10px; }
.judge-item {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  font-size: 13px; color: var(--c-text-2);
  padding: 8px 12px;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
}
.judge-value { font-weight: 700; font-size: 13px; }
.judge-yes { color: var(--c-green); }
.judge-no { color: var(--c-red); }
.judge-mid { color: var(--c-accent); }

.related-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.related-list a {
  display: block;
  font-size: 13.5px; font-weight: 500;
  color: var(--c-text-2);
  padding: 10px 12px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--t-med), color var(--t-fast), background var(--t-med);
}
.related-list a:hover { border-color: var(--c-border-hover); color: var(--c-text-1); background: rgba(37,99,235,0.06); }
.related-list a small { display: block; font-size: 11.5px; font-weight: 400; color: var(--c-text-4); margin-top: 2px; }
.related-loading { font-size: 13px; color: var(--c-text-4); text-align: center; padding: 12px; }

.sidebar-actions { display: flex; flex-direction: column; }

/* ─── Pagination ────────────────────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--c-border);
}
.pagination[hidden] { display: none; }

.pagination__pages {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* 页码与箭头共用的底座 */
.pagination__page,
.pagination__nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 38px;
  padding: 0 11px;
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  color: var(--c-text-3);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: color var(--t-fast), background var(--t-fast),
              border-color var(--t-fast), box-shadow var(--t-med),
              transform var(--t-fast);
  -webkit-tap-highlight-color: transparent;
}

.pagination__nav { color: var(--c-text-3); padding: 0; width: 38px; }
.pagination__nav svg { width: 16px; height: 16px; }

/* hover：轻微抬起的描边幽灵按钮 */
.pagination__page:hover,
.pagination__nav:hover:not(:disabled) {
  color: var(--c-text-1);
  background: rgba(255,255,255,0.04);
  border-color: var(--c-border);
}
.pagination__page:hover { transform: translateY(-1px); }
.pagination__nav:hover:not(:disabled) { transform: translateX(0) translateY(-1px); }

/* 当前页：渐变实心 pill + 柔光 */
.pagination__page--active,
.pagination__page--active:hover {
  color: #fff;
  background: var(--g-primary);
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(37,99,235,0.45), inset 0 1px 0 rgba(255,255,255,0.15);
  font-weight: 600;
  transform: none;
  cursor: default;
}

/* 省略号 */
.pagination__ellipsis {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 38px;
  font-size: 13px;
  color: var(--c-text-4);
  user-select: none;
}

/* 禁用态 */
.pagination__nav:disabled {
  color: var(--c-text-4);
  opacity: 0.4;
  cursor: not-allowed;
}

/* 键盘可达性 */
.pagination__page:focus-visible,
.pagination__nav:focus-visible {
  outline: 2px solid var(--c-primary-light);
  outline-offset: 2px;
}

/* 移动端：收紧间距与尺寸 */
@media (max-width: 640px) {
  .pagination { gap: 3px; margin-top: 36px; padding-top: 24px; }
  .pagination__pages { gap: 2px; }
  .pagination__page,
  .pagination__nav { min-width: 32px; height: 32px; padding: 0 6px; font-size: 12.5px; }
  .pagination__nav { width: 32px; }
  .pagination__nav svg { width: 14px; height: 14px; }
  .pagination__ellipsis { min-width: 16px; height: 32px; }
}

/* ─── Reveal animation ──────────────────────────────────── */
/* 默认可见：只有 JS 成功接管（html.js-ready）后才会先隐藏再淡入。
   这样即使 JS 报错或加载失败，页面内容依然可读。 */
.reveal {
  transform: translateY(24px);
  transition: opacity var(--t-slow) var(--ease-out), transform var(--t-slow) var(--ease-out);
}
.js-ready .reveal { opacity: 0; }
.reveal.visible,
.reveal.reveal--visible { opacity: 1; transform: translateY(0); }

/* ─── Responsive ────────────────────────────────────────── */
@media (max-width: 640px) {
  .projects-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 120px; }
  .detail-hero { padding-top: 100px; }
  .detail-sidebar { position: static; }
  .footer__inner { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
}