/* ============================
   Ruyi Culture - Global Styles
   ============================ */

:root {
  --color-bg: #ffffff;
  --color-surface: #faf8f5;
  --color-text: #2b2b2b;
  --color-muted: #6b6b6b;
  --color-border: #e8e4dc;
  --color-accent: #8a6a3b;        /* warm bronze */
  --color-accent-dark: #6e5328;
  --color-accent-soft: #f1ead9;
  --max-width: 1100px;
  --radius: 8px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.06);
  --font-serif: "Georgia", "Source Han Serif", "Noto Serif TC", "PingFang TC", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, "PingFang TC", "Microsoft JhengHei", "Noto Sans TC", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  color: #1f1f1f;
  line-height: 1.3;
  margin: 0 0 0.6em;
}

h1 { font-size: 2.4rem; }
h2 { font-size: 1.8rem; }
h3 { font-size: 1.25rem; }

p {
  margin: 0 0 1em;
  color: #3a3a3a;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover {
  color: var(--color-accent-dark);
  text-decoration: underline;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================
   Navigation
   ============================ */
.site-header {
  background: #ffffff;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.brand {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-accent-dark);
  letter-spacing: 0.5px;
}
.brand span {
  font-size: 0.85rem;
  color: var(--color-muted);
  font-weight: 400;
  margin-left: 6px;
  font-family: var(--font-sans);
}

.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  color: #333;
  font-size: 0.95rem;
  font-weight: 500;
}
.nav-links a:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.5rem;
  color: var(--color-text);
}

/* Language switcher */
.lang-switch {
  display: inline-block;
  margin-left: 8px;
  padding: 4px 10px;
  font-size: 0.85rem;
  color: var(--color-accent-dark);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: #fff;
  font-weight: 500;
  transition: background 0.2s ease, color 0.2s ease;
}
.lang-switch:hover {
  background: var(--color-accent);
  color: #fff;
  text-decoration: none;
  border-color: var(--color-accent);
}

/* ============================
   Hero
   ============================ */
.hero {
  background: linear-gradient(180deg, var(--color-accent-soft) 0%, #ffffff 100%);
  padding: 80px 24px 70px;
  text-align: center;
}
.hero h1 {
  font-size: 2.6rem;
  max-width: 760px;
  margin: 0 auto 16px;
}
.hero .subtitle {
  font-size: 1.1rem;
  color: var(--color-muted);
  max-width: 640px;
  margin: 0 auto 28px;
}
.hero .chinese {
  display: block;
  font-family: var(--font-serif);
  color: var(--color-accent-dark);
  font-size: 1rem;
  margin-top: 12px;
  letter-spacing: 2px;
}

/* ============================
   Buttons
   ============================ */
.btn {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 1rem;
  transition: background 0.2s ease, transform 0.2s ease;
  border: none;
  cursor: pointer;
}
.btn:hover {
  background: var(--color-accent-dark);
  color: #fff;
  text-decoration: none;
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent;
  color: var(--color-accent-dark);
  border: 1.5px solid var(--color-accent);
}
.btn-outline:hover {
  background: var(--color-accent);
  color: #fff;
}

/* ============================
   Sections
   ============================ */
.section {
  padding: 70px 24px;
}
.section-alt {
  background: var(--color-surface);
}
.section-title {
  text-align: center;
  margin-bottom: 14px;
}
.section-lead {
  text-align: center;
  color: var(--color-muted);
  max-width: 680px;
  margin: 0 auto 48px;
}

/* ============================
   Cards / Grid
   ============================ */
.grid {
  display: grid;
  gap: 28px;
}
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.card h3 {
  color: var(--color-accent-dark);
  margin-bottom: 8px;
}
.card p {
  color: #4a4a4a;
  font-size: 0.95rem;
  margin-bottom: 0;
}
.card .icon {
  font-size: 1.6rem;
  margin-bottom: 10px;
  color: var(--color-accent);
}

/* ============================
   Steps (How it works)
   ============================ */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.step {
  text-align: center;
}
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  font-weight: 600;
  font-family: var(--font-serif);
  margin-bottom: 12px;
}
.step h4 {
  font-size: 1.05rem;
  margin-bottom: 6px;
}
.step p {
  font-size: 0.9rem;
  color: var(--color-muted);
}

/* ============================
   CTA banner
   ============================ */
.cta-banner {
  background: var(--color-accent);
  color: #fff;
  text-align: center;
  padding: 60px 24px;
}
.cta-banner h2 {
  color: #fff;
  margin-bottom: 12px;
}
.cta-banner p {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 24px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}
.cta-banner .btn {
  background: #fff;
  color: var(--color-accent-dark);
}
.cta-banner .btn:hover {
  background: var(--color-accent-soft);
}

/* ============================
   Page header (inner pages)
   ============================ */
.page-header {
  background: var(--color-accent-soft);
  text-align: center;
  padding: 60px 24px 50px;
}
.page-header h1 {
  margin-bottom: 8px;
}
.page-header p {
  color: var(--color-muted);
  margin: 0;
}

/* ============================
   Content (legal pages, articles)
   ============================ */
.content {
  max-width: 800px;
  margin: 0 auto;
  padding: 60px 24px 80px;
}
.content h2 {
  margin-top: 36px;
  font-size: 1.4rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 8px;
}
.content h2:first-of-type { margin-top: 0; }
.content ul {
  padding-left: 22px;
}
.content li {
  margin-bottom: 8px;
}
.content .updated {
  color: var(--color-muted);
  font-size: 0.9rem;
  font-style: italic;
}

/* ============================
   Contact
   ============================ */
.contact-info {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  max-width: 640px;
  margin: 0 auto;
}
.contact-info dl {
  margin: 0;
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 14px 20px;
}
.contact-info dt {
  font-weight: 600;
  color: var(--color-accent-dark);
}
.contact-info dd {
  margin: 0;
  color: #333;
}

/* ============================
   Values / About
   ============================ */
.values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 30px;
}
.value {
  text-align: center;
  padding: 24px;
}
.value h3 {
  color: var(--color-accent-dark);
  font-size: 1.1rem;
}

/* ============================
   Footer
   ============================ */
.site-footer {
  background: #1f1b16;
  color: #c9c2b5;
  padding: 50px 24px 26px;
  margin-top: auto;
}
.footer-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
}
.footer-grid h4 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 14px;
  font-family: var(--font-sans);
}
.footer-grid p {
  color: #9e9789;
  font-size: 0.9rem;
}
.footer-grid ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-grid li {
  margin-bottom: 8px;
}
.footer-grid a {
  color: #c9c2b5;
  font-size: 0.92rem;
}
.footer-grid a:hover {
  color: #fff;
  text-decoration: none;
}
.footer-bottom {
  border-top: 1px solid #3a342c;
  margin-top: 36px;
  padding-top: 18px;
  text-align: center;
  font-size: 0.85rem;
  color: #8a8377;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
}

/* ============================
   Responsive
   ============================ */
@media (max-width: 860px) {
  h1 { font-size: 2rem; }
  .hero { padding: 60px 20px 50px; }
  .hero h1 { font-size: 2rem; }
  .section { padding: 50px 20px; }

  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .values { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .contact-info dl { grid-template-columns: 1fr; gap: 4px 0; }
  .contact-info dt { margin-top: 12px; }

  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 16px 24px;
    border-bottom: 1px solid var(--color-border);
    gap: 14px;
  }
  .nav-links.open { display: flex; }
}

@media (max-width: 480px) {
  .steps { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.7rem; }
  .hero .subtitle { font-size: 1rem; }
}