:root {
  --color-bg: #0c1014;
  --color-surface: #141a22;
  --color-surface-2: #1c2430;
  --color-text: #e8edf2;
  --color-muted: #8b97a8;
  --color-accent: #7bc96f;
  --color-accent-2: #c8e85f;
  --color-border: rgba(255, 255, 255, 0.08);
  --font: "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --radius: 12px;
  --shadow: 0 24px 48px rgba(0, 0, 0, 0.35);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
}

.container {
  width: min(1120px, 100% - 40px);
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(12, 16, 20, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 64px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--color-text);
  text-decoration: none;
}

.logo:hover {
  text-decoration: none;
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2));
  color: #0c1014;
  font-weight: 700;
  font-size: 1.1rem;
}

.logo-mark.sm {
  width: 32px;
  height: 32px;
  font-size: 0.95rem;
}

.logo-text {
  font-weight: 600;
  letter-spacing: 0.02em;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 0.5rem 1.5rem;
}

.site-nav a {
  color: var(--color-muted);
  font-weight: 500;
  font-size: 0.95rem;
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--color-text);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: var(--color-surface);
  cursor: pointer;
  position: relative;
}

.nav-toggle::before,
.nav-toggle::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: transform 0.2s, top 0.2s, opacity 0.2s;
}

.nav-toggle::before {
  top: 16px;
}

.nav-toggle::after {
  top: 26px;
}

.nav-toggle[aria-expanded="true"]::before {
  top: 21px;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"]::after {
  top: 21px;
  transform: rotate(-45deg);
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .site-nav.is-open {
    max-height: 320px;
  }

  .site-nav ul {
    flex-direction: column;
    padding: 1rem 20px 1.25rem;
    gap: 0;
  }

  .site-nav li {
    border-bottom: 1px solid var(--color-border);
  }

  .site-nav a {
    display: block;
    padding: 0.85rem 0;
  }

  .site-header .container {
    position: relative;
  }
}

/* Hero */
.hero {
  position: relative;
  padding: 5rem 0 4.5rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 20%, rgba(123, 201, 111, 0.15), transparent 50%),
    radial-gradient(ellipse 60% 50% at 85% 30%, rgba(200, 232, 95, 0.1), transparent 45%),
    linear-gradient(180deg, var(--color-bg) 0%, #0a0d10 100%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  max-width: 720px;
  margin-left: 300px;
  padding-left: 0;
  text-align: left;
}

.hero-tag {
  display: inline-block;
  margin: 0 0 1rem;
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  border: 1px solid rgba(123, 201, 111, 0.35);
  border-radius: 999px;
  background: var(--color-surface-2);
}

.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(1.85rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 0.02em;
}

.hero-lead {
  margin: 0 0 1.75rem;
  font-size: 1.05rem;
  color: var(--color-muted);
  max-width: 560px;
}

.hero-lead strong {
  color: var(--color-text);
  font-weight: 600;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: flex-start;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.35rem;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent), #5fad54);
  color: #0c1014;
  box-shadow: 0 8px 24px rgba(123, 201, 111, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 12px 28px rgba(123, 201, 111, 0.35);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-ghost:hover {
  background: var(--color-surface-2);
}

/* Stats */
.section-stats {
  padding: 0 0 3rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.stat {
  padding: 1.25rem 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.stat-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent-2);
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--color-muted);
}

@media (max-width: 640px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
}

/* Sections */
.section {
  padding: 3.5rem 0;
}

.section-alt {
  background: var(--color-surface);
  border-block: 1px solid var(--color-border);
}

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 2.5rem;
}

.section-head.align-left {
  text-align: left;
  margin-left: 0;
  margin-right: auto;
}

.section-head h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.section-head p {
  margin: 0;
  color: var(--color-muted);
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

.card {
  padding: 1.5rem;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color 0.2s, transform 0.2s;
}

.card:hover {
  border-color: rgba(123, 201, 111, 0.25);
  transform: translateY(-2px);
}

.card-icon {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.card h3 {
  margin: 0 0 0.65rem;
  font-size: 1.15rem;
}

.card > p {
  margin: 0 0 1rem;
  font-size: 0.92rem;
  color: var(--color-muted);
}

.card-list {
  margin: 0;
  padding-left: 1.1rem;
  font-size: 0.88rem;
  color: var(--color-muted);
}

.card-list li {
  margin-bottom: 0.35rem;
}

.disclaimer-block {
  margin: 2rem 0 0;
  padding: 1rem 1.25rem;
  font-size: 0.85rem;
  color: var(--color-muted);
  background: rgba(200, 232, 95, 0.06);
  border: 1px solid rgba(200, 232, 95, 0.2);
  border-radius: var(--radius);
}

.disclaimer-block strong {
  color: var(--color-accent-2);
}

/* About split */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.split-text p {
  color: var(--color-muted);
}

.split-panel {
  padding: 1.75rem;
  background: var(--color-bg);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.split-panel h3 {
  margin: 0 0 1rem;
  font-size: 1.1rem;
}

.principles {
  list-style: none;
  margin: 0;
  padding: 0;
}

.principles li {
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.92rem;
  color: var(--color-muted);
}

.principles li:last-child {
  border-bottom: none;
}

.principles span {
  display: block;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.2rem;
}

@media (max-width: 900px) {
  .split {
    grid-template-columns: 1fr;
  }
}

/* Contact direct line */
.contact-direct {
  text-align: center;
  margin: -1rem 0 1.5rem;
}

.contact-direct p {
  margin: 0;
  font-size: 1rem;
  color: var(--color-text);
}

.contact-direct a {
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
}

.contact-direct a:hover {
  text-decoration: underline;
}

/* Contact form */
.contact-layout {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 2.5rem;
  align-items: start;
  margin-top: 1.75rem;
}

.contact-info {
  padding: 0;
}

.contact-info-row {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1.15rem;
}

.contact-info-label {
  min-width: 64px;
  font-weight: 600;
  color: var(--color-muted);
}

.contact-info-value a {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 600;
}

.contact-info-value a:hover {
  text-decoration: underline;
}

.contact-form-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
}

.contact-form {
  max-width: none;
  margin: 0;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 0;
  box-shadow: none;
}

.contact-form .form-row label {
  display: none;
}

.form-row {
  margin-bottom: 1.1rem;
}

.form-row.full {
  margin-bottom: 1.25rem;
}

.form-row label {
  display: block;
  font-size: 0.88rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
  color: var(--color-muted);
}

.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  font-family: inherit;
  font-size: 1rem;
  color: var(--color-text);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: 8px;
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: rgba(123, 201, 111, 0.5);
  box-shadow: 0 0 0 3px rgba(123, 201, 111, 0.15);
}

.form-actions {
  margin-top: 0.5rem;
  text-align: center;
}

.form-note {
  margin: 1rem 0 0;
  font-size: 0.88rem;
  color: var(--color-accent);
  min-height: 1.5em;
}

/* Floating banner (for form submit feedback) */
.floating-banner {
  position: relative;
  margin-bottom: 1rem;
  padding: 12px 44px 12px 16px;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  background: rgba(20, 26, 34, 0.9);
  color: var(--color-text);
  text-align: center;
  font-size: 0.95rem;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
}

.floating-banner-close {
  position: absolute;
  top: 6px;
  right: 8px;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: none;
  background: transparent;
  color: var(--color-muted);
  font-size: 20px;
  cursor: pointer;
}

.floating-banner-close:hover {
  color: var(--color-text);
}

.floating-banner-info {
  border-color: rgba(123, 201, 111, 0.35);
}

.floating-banner-success {
  border-color: rgba(123, 201, 111, 0.55);
  background: rgba(123, 201, 111, 0.12);
}

@media (max-width: 900px) {
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .contact-form-panel {
    padding: 1.5rem;
  }
}

/* Footer */
.site-footer {
  padding: 2rem 0;
  border-top: 1px solid var(--color-border);
  background: #080a0c;
}

.footer-stack {
  text-align: center;
}

.footer-links-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 2rem;
  text-align: left;
  margin-bottom: 1.75rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--color-border);
}

.footer-col h3 {
  margin: 0 0 0.8rem;
  font-size: 0.98rem;
  color: var(--color-text);
}

.footer-col p {
  margin: 0 0 0.9rem;
  font-size: 0.85rem;
  color: var(--color-muted);
}

.footer-col ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-col li {
  margin-bottom: 0.45rem;
  font-size: 0.84rem;
  color: var(--color-muted);
}

.footer-col a {
  color: var(--color-muted);
  text-decoration: none;
}

.footer-col a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

.footer-social {
  display: flex;
  gap: 0.55rem;
}

.footer-social a {
  width: 30px;
  height: 30px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-text);
  font-size: 0.78rem;
  font-weight: 600;
  text-decoration: none;
}

.footer-social a:hover {
  background: rgba(123, 201, 111, 0.24);
  color: var(--color-accent);
  text-decoration: none;
}

.footer-copyright {
  margin: 0 0 1rem;
  font-size: 0.8rem;
  color: var(--color-muted);
}

.footer-beian {
  margin: 0;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

.police-beian {
  margin-top: 0.8rem;
  display: flex;
  justify-content: center;
}

.police-beian-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.police-beian-img {
  width: 16px;
  height: 16px;
  display: block;
}

.police-beian-text {
  display: inline-block;
  font-size: 0.8rem;
  line-height: 1.2;
  color: var(--color-muted);
}

.police-beian-link:hover {
  text-decoration: underline;
}

.police-beian-link:hover .police-beian-text {
  color: var(--color-accent);
}

.footer-beian a {
  font-size: 0.8rem;
  color: var(--color-muted);
  text-decoration: none;
}

.footer-beian a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

@media (max-width: 980px) {
  .footer-links-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
  }
}

@media (max-width: 640px) {
  .footer-links-grid {
    grid-template-columns: 1fr;
  }
}

/* About page */
.about-hero {
  position: relative;
  padding: 4.5rem 0 3.5rem;
  overflow: hidden;
}

.about-hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 55% at 18% 20%, rgba(123, 201, 111, 0.12), transparent 50%),
    radial-gradient(ellipse 65% 50% at 85% 22%, rgba(200, 232, 95, 0.08), transparent 42%),
    linear-gradient(180deg, var(--color-bg) 0%, #0a0d10 100%);
  pointer-events: none;
}

.about-hero-inner {
  position: relative;
  max-width: 760px;
  padding-left: 0
}

.about-hero h1 {
  margin: 0 0 0.85rem;
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  line-height: 1.2;
}

.about-hero-lead {
  margin: 0;
  max-width: 620px;
  color: var(--color-muted);
  font-size: 1.04rem;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.about-card,
.about-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.4rem 1.5rem;
}

.about-card h2,
.about-panel h2 {
  margin: 0 0 0.7rem;
  font-size: 1.1rem;
}

.about-card p,
.about-panel p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.95rem;
}

.about-card ul {
  margin: 0;
  padding-left: 1rem;
  color: var(--color-muted);
  font-size: 0.92rem;
}

.about-card li {
  margin-bottom: 0.4rem;
}

.about-timeline-wrap .section-head {
  margin-bottom: 2rem;
}

.about-timeline {
  display: grid;
  gap: 1rem;
}

.about-timeline-item {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 1rem;
  align-items: start;
  padding: 1rem 1.2rem;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: 10px;
}

.about-year {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  border-radius: 8px;
  background: rgba(123, 201, 111, 0.14);
  color: var(--color-accent);
  font-weight: 700;
  letter-spacing: 0.05em;
  font-size: 0.85rem;
}

.about-timeline-item p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.94rem;
}

.about-bottom-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

@media (max-width: 900px) {
  .about-grid,
  .about-bottom-grid {
    grid-template-columns: 1fr;
  }

  .about-timeline-item {
    grid-template-columns: 1fr;
  }
}