:root {
  --primary-bg: #0A1A2F;
  --secondary-bg: #F4F6F8;
  --surface: #FFFFFF;
  --accent-green: #C6FF00;
  --accent-orange: #FF6B35;
  --text-primary: #1A2533;
  --text-secondary: #5A6B7C;
  --border: #D1D9E6;
  --font-headline: 'Archivo Black', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-body: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --shadow-subtle: 0 2px 8px rgba(10, 26, 47, 0.08), 0 8px 24px rgba(10, 26, 47, 0.04);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --max-width: 1440px;
  --header-height: 72px;
}
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-primary);
  background-color: var(--secondary-bg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color 200ms var(--ease-out), background-color 200ms var(--ease-out), border-color 200ms var(--ease-out);
}
ul,
ol {
  list-style: none;
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}
h1,
h2,
h3,
h4 {
  font-family: var(--font-headline);
  line-height: 1.2;
  color: var(--text-primary);
  font-weight: 900;
}
h1 {
  font-size: 3.5rem;
  letter-spacing: -0.02em;
}
h2 {
  font-size: 2.5rem;
  letter-spacing: -0.01em;
}
h3 {
  font-size: 1.75rem;
}
h4 {
  font-size: 1.25rem;
}
p {
  margin-bottom: 1rem;
}
.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 2000;
  background: var(--accent-green);
  color: var(--primary-bg);
  font-family: var(--font-body);
  font-weight: 700;
  padding: 10px 18px;
  border-radius: 4px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-16px);
  transition: opacity 200ms var(--ease-out), transform 200ms var(--ease-out);
}
.skip-link:focus {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(20px, 4vw, 56px);
  padding-right: clamp(20px, 4vw, 56px);
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--primary-bg);
  border-bottom: 1px solid rgba(198, 255, 0, 0.1);
  height: auto;
  min-height: var(--header-height);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}
.brand-mark {
  position: relative;
  width: 42px;
  height: 42px;
  display: block;
}
.brand-mark-circle {
  position: absolute;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-green);
  opacity: 0.9;
}
.brand-mark-circle-left {
  top: 0;
  left: 0;
  clip-path: polygon(50% 0, 100% 0, 100% 100%, 0 100%, 0 50%);
  transform: rotate(20deg);
}
.brand-mark-circle-right {
  bottom: 0;
  right: 0;
  background: var(--accent-orange);
  clip-path: polygon(0% 0, 100% 0, 100% 100%, 50% 100%, 0 100%);
  transform: rotate(70deg);
}
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.brand-wordmark {
  font-family: var(--font-headline);
  font-size: 1.25rem;
  font-weight: 900;
  color: var(--surface);
  letter-spacing: 0.02em;
}
.brand-subtext {
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(8px, 1.6vw, 28px);
}
.site-nav-link {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.8);
  padding: 8px 4px;
  position: relative;
  white-space: nowrap;
}
.site-nav-link:hover,
.site-nav-link:focus-visible {
  color: var(--accent-green);
}
.site-nav-link[aria-current="page"] {
  color: var(--accent-green);
  border-bottom: 2px solid var(--accent-green);
}
.header-cta {
  margin-left: auto;
  white-space: nowrap;
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: transparent;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: border-color 200ms var(--ease-out), background-color 200ms var(--ease-out);
}
.nav-toggle:hover,
.nav-toggle:focus-visible {
  border-color: var(--accent-green);
  background: rgba(198, 255, 0, 0.08);
}
.nav-toggle-bar {
  width: 18px;
  height: 2px;
  background: var(--accent-green);
  display: block;
  transition: transform 200ms var(--ease-out), opacity 200ms var(--ease-out);
}
.site-footer {
  background: var(--primary-bg);
  color: rgba(255, 255, 255, 0.8);
  padding-top: clamp(48px, 6vw, 80px);
  padding-bottom: 32px;
  position: relative;
  overflow: hidden;
}
.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(198, 255, 0, 0.14) 0%, transparent 70%);
  pointer-events: none;
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(280px, 2fr) minmax(160px, 1fr) minmax(160px, 1fr) minmax(200px, 1.2fr);
  gap: clamp(24px, 3vw, 48px);
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}
.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.footer-logo {
  font-family: var(--font-headline);
  font-size: 1.75rem;
  font-weight: 900;
  color: var(--surface);
  margin-bottom: 4px;
}
.footer-tagline {
  font-size: 0.8rem;
  color: var(--accent-green);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.footer-trust {
  font-size: 0.85rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.65);
  max-width: 42ch;
  margin-bottom: 20px;
}
.footer-shield {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  padding: 8px 12px;
  border-left: 2px solid var(--accent-green);
  margin-top: 8px;
}
.shield-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
  margin-bottom: 4px;
}
.shield-line {
  width: 60px;
  height: 2px;
  background: rgba(255, 255, 255, 0.25);
}
.footer-col-title {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-links li {
  font-size: 0.9rem;
}
.footer-links a {
  color: rgba(255, 255, 255, 0.85);
  transition: color 200ms var(--ease-out), padding-left 200ms var(--ease-out);
  padding-left: 0;
}
.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--accent-green);
  padding-left: 4px;
}
.footer-contact ul {
  word-break: break-all;
}
.footer-contact li {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.55);
}
.footer-icp {
  letter-spacing: 0.05em;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 10px 18px;
  border-radius: 4px;
  transition: background-color 200ms var(--ease-out), color 200ms var(--ease-out), border-color 200ms var(--ease-out), transform 200ms var(--ease-out);
}
.btn-primary {
  background: var(--accent-green);
  color: var(--primary-bg);
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}
.btn-primary:hover,
.btn-primary:focus-visible {
  background: #d8ff4d;
  transform: translateY(-1px);
}
.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-ghost:hover,
.btn-ghost:focus-visible {
  border-color: var(--accent-green);
  color: var(--primary-bg);
  background: rgba(198, 255, 0, 0.08);
}
.btn-orange {
  background: var(--accent-orange);
  color: var(--surface);
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}
.btn-orange:hover,
.btn-orange:focus-visible {
  background: #ff8f63;
  transform: translateY(-1px);
}
.section {
  padding: clamp(48px, 7vw, 96px) 0;
}
.section-head {
  display: grid;
  grid-template-columns: minmax(200px, 1fr) 4fr;
  gap: clamp(24px, 4vw, 64px);
  margin-bottom: clamp(32px, 4vw, 56px);
  position: relative;
}
.section-index {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--accent-orange);
  text-transform: uppercase;
  display: block;
  margin-bottom: 8px;
}
.section-sub {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
  max-width: 22ch;
  padding-left: 12px;
  border-left: 2px solid var(--accent-green);
}
.section-title {
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.1;
}
.section-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 12px;
}
.section-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(16px, 2vw, 32px);
}
.content-wide {
  grid-column: span 6;
}
.content-note {
  grid-column: span 2;
}
@media (min-width: 768px) {
  .content-wide {
    grid-column: span 8;
  }
  .content-note {
    grid-column: span 4;
  }
}
.clip-block {
  position: relative;
  background: var(--primary-bg);
  color: var(--surface);
  padding: clamp(24px, 3vw, 40px);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% calc(100% - 0), 12px 100%, 0 calc(100% - 12px));
}
.split-band {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  min-height: 320px;
}
.split-band > *:first-child {
  background: var(--primary-bg);
  color: var(--surface);
  padding: clamp(28px, 4vw, 48px);
}
.split-band > *:last-child {
  background: var(--surface);
  padding: clamp(28px, 4vw, 48px);
  border: 1px solid var(--border);
  border-left: none;
}
.accent-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-green);
  color: var(--primary-bg);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 2px;
  clip-path: polygon(0 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}
.news-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-orange);
  color: var(--surface);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 2px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: clamp(20px, 2.5vw, 28px);
  box-shadow: var(--shadow-subtle);
  position: relative;
  transition: transform 200ms var(--ease-out), box-shadow 200ms var(--ease-out), border-color 200ms var(--ease-out);
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(10, 26, 47, 0.1), 0 16px 32px rgba(10, 26, 47, 0.06);
  border-color: var(--accent-green);
}
.card-principle {
  border-top: 3px solid var(--accent-green);
}
.card-boundary {
  border-top: 3px solid var(--text-secondary);
}
.card-scene {
  border-top: 3px solid var(--accent-orange);
}
.card-question {
  border-top: 3px solid var(--accent-green);
}
.card-score {
  background: linear-gradient(135deg, var(--surface) 0%, #f8fafb 100%);
  border: 1px solid var(--border);
  padding: 24px;
}
.card-score .score-number {
  font-family: var(--font-headline);
  font-size: 2.5rem;
  font-weight: 900;
  line-height: 1;
  color: var(--primary-bg);
}
.card-score .score-meta {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 8px;
}
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(24px, 3vw, 40px);
}
.filter-btn {
  font-size: 0.85rem;
  font-weight: 600;
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 100px;
  background: transparent;
  color: var(--text-secondary);
  transition: background-color 200ms var(--ease-out), color 200ms var(--ease-out), border-color 200ms var(--ease-out);
}
.filter-btn:hover,
.filter-btn:focus-visible {
  border-color: var(--accent-green);
  color: var(--primary-bg);
}
.filter-btn[data-filter-active="true"] {
  background: var(--accent-green);
  border-color: var(--accent-green);
  color: var(--primary-bg);
}
.media-frame {
  position: relative;
  background: var(--primary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 220px;
  overflow: hidden;
  border-radius: 4px;
}
.media-frame::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: linear-gradient(135deg, rgba(10, 26, 47, 0.85) 0%, rgba(10, 26, 47, 0.2) 50%, transparent 65%);
}
.media-frame-wide {
  aspect-ratio: 16 / 9;
  min-height: 180px;
}
.media-frame-tall {
  aspect-ratio: 3 / 4;
  min-height: 280px;
}
.media-overlay {
  position: relative;
  z-index: 1;
  color: var(--surface);
  font-family: var(--font-headline);
  font-size: 1.4rem;
  font-weight: 900;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
  text-align: center;
  padding: 12px;
}
.media-overlay small {
  display: block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  opacity: 0.8;
  margin-top: 8px;
}
.text-note {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 0.08em;
  writing-mode: vertical-rl;
}
.text-vertical {
  writing-mode: vertical-rl;
  font-size: 0.8rem;
  letter-spacing: 0.15em;
}
.eyebrow {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-orange);
}
.divider-line {
  height: 1px;
  background: var(--border);
  border: none;
  margin: 24px 0;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.breadcrumb a {
  color: var(--text-secondary);
}
.breadcrumb a:hover {
  color: var(--accent-green);
}
.main-container {
  min-height: 60vh;
  background: var(--secondary-bg);
}
@media (max-width: 1024px) {
  .site-nav {
    gap: 14px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  h1 {
    font-size: 2.6rem;
  }
  h2 {
    font-size: 2rem;
  }
  h3 {
    font-size: 1.5rem;
  }
  .header-inner {
    flex-wrap: wrap;
    min-height: 60px;
    padding-top: 12px;
    padding-bottom: 12px;
  }
  .brand {
    gap: 10px;
  }
  .brand-mark {
    width: 36px;
    height: 36px;
  }
  .brand-wordmark {
    font-size: 1.1rem;
  }
  .brand-subtext {
    font-size: 0.6rem;
  }
  .nav-toggle {
    display: flex;
  }
  .site-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--primary-bg);
    border-top: 1px solid rgba(198, 255, 0, 0.1);
    padding: 16px 0 16px;
    position: initial;
    order: 3;
  }
  .site-nav[data-open] {
    display: flex;
  }
  .site-nav-link {
    display: block;
    width: 100%;
    padding: 14px 0;
    font-size: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.9);
  }
  .site-nav-link[aria-current="page"] {
    border-bottom-color: var(--accent-green);
    color: var(--accent-green);
    padding-left: 8px;
  }
  .site-nav .btn.header-cta {
    margin-left: 0;
    width: 100%;
    margin-top: 16px;
  }
  .header-cta {
    clip-path: none;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-brand,
  .footer-col,
  .footer-contact {
    width: 100%;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
  .split-band {
    grid-template-columns: 1fr;
  }
  .split-band > *:last-child {
    border-left: 1px solid var(--border);
    border-top: none;
  }
  .section-head {
    grid-template-columns: 1fr;
  }
}
@media (min-width: 769px) {
  .site-nav[data-open] {
    display: flex;
  }
}
:focus-visible {
  outline: 2px solid var(--accent-green);
  outline-offset: 2px;
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}