/* roulang page: index */
:root {
  --primary: #d08a4c;
  --primary-dark: #a55c2a;
  --primary-light: #e7a66d;
  --accent: #7e8c5a;
  --accent-light: #9dab72;
  --bg: #1d1815;
  --bg-light: #262019;
  --bg-card: #2c241d;
  --bg-deep: #161210;
  --text: #f0e1cc;
  --text-muted: #b5a48e;
  --text-dim: #7a6c5c;
  --border: #3d3228;
  --radius: 16px;
  --radius-sm: 8px;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
  --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.45);
  --transition: 0.3s ease;
  --font-main: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Georgia", "Songti SC", "SimSun", serif;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition), background var(--transition), border-color var(--transition), opacity var(--transition), transform var(--transition), box-shadow var(--transition);
}
img {
  max-width: 100%;
  display: block;
}
ul, ol {
  list-style: none;
}
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 4px;
}
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header ===== */
.site-header {
  background: var(--bg-deep);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}
.header-brand-row {
  border-bottom: 1px solid rgba(208, 138, 76, 0.12);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: #fff;
  box-shadow: 0 4px 14px rgba(208, 138, 76, 0.35);
}
.brand-text {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--text);
}
.brand-text:hover {
  color: var(--primary-light);
}
.header-tools {
  display: flex;
  align-items: center;
  gap: 16px;
}
.header-help {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: all var(--transition);
}
.header-help:hover {
  color: var(--primary);
  border-color: var(--primary);
  background: rgba(208, 138, 76, 0.05);
}
.header-nav-row {
  border-top: 1px solid rgba(255, 255, 255, 0.02);
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: 4px;
  height: 52px;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-inner::-webkit-scrollbar {
  display: none;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-muted);
  border-radius: 999px;
  white-space: nowrap;
  border: 1px solid transparent;
}
.nav-link i {
  font-size: 14px;
  opacity: 0.8;
}
.nav-link:hover {
  color: var(--primary-light);
  background: rgba(208, 138, 76, 0.06);
  border-color: rgba(208, 138, 76, 0.15);
}
.nav-link.active {
  color: var(--primary);
  background: rgba(208, 138, 76, 0.1);
  border-color: rgba(208, 138, 76, 0.2);
}
.nav-brand-mark {
  margin-left: auto;
  font-size: 13px;
  color: var(--text-dim);
  letter-spacing: 1px;
  padding: 6px 16px;
  border: 1px dashed var(--border);
  border-radius: 999px;
  white-space: nowrap;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 32px;
  font-size: 16px;
  font-weight: 600;
  border-radius: 999px;
  cursor: pointer;
  transition: all var(--transition);
  border: 1px solid transparent;
  line-height: 1.2;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 4px 16px rgba(208, 138, 76, 0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(208, 138, 76, 0.4);
}
.btn-outline {
  background: transparent;
  color: var(--primary-light);
  border: 2px solid var(--primary);
}
.btn-outline:hover {
  background: rgba(208, 138, 76, 0.1);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(208, 138, 76, 0.2);
}
.btn-sm {
  padding: 10px 20px;
  font-size: 14px;
}
.btn-lg {
  padding: 16px 40px;
  font-size: 17px;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(29, 24, 21, 0.95) 0%, rgba(29, 24, 21, 0.75) 50%, rgba(29, 24, 21, 0.4) 100%);
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
  padding: 80px 24px;
  max-width: 680px;
  margin-left: 0;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: rgba(208, 138, 76, 0.12);
  border: 1px solid rgba(208, 138, 76, 0.3);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-light);
  letter-spacing: 1px;
  margin-bottom: 28px;
}
.hero-content h1 {
  font-family: var(--font-serif);
  font-size: 52px;
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 20px;
  letter-spacing: 2px;
}
.hero-lead {
  font-size: 18px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 540px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
}
.hero-stats {
  display: flex;
  gap: 36px;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.stat-item {
  display: flex;
  flex-direction: column;
}
.stat-num {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 700;
  color: var(--primary);
}
.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
  letter-spacing: 1px;
}

/* ===== Section ===== */
.section {
  padding: 100px 0;
  position: relative;
}
.section-alt {
  background: var(--bg-light);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.section-head {
  text-align: center;
  margin-bottom: 56px;
}
.section-tag {
  display: inline-block;
  padding: 6px 20px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 4px;
  color: var(--primary);
  border: 1px solid rgba(208, 138, 76, 0.3);
  border-radius: 999px;
  background: rgba(208, 138, 76, 0.05);
  margin-bottom: 16px;
  text-transform: uppercase;
}
.section-head h2 {
  font-family: var(--font-serif);
  font-size: 38px;
  color: var(--text);
  margin-bottom: 16px;
  letter-spacing: 1px;
}
.section-head p {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto;
}

/* ===== Grid ===== */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

/* ===== Card ===== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 32px;
  transition: all var(--transition);
  box-shadow: var(--shadow);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(208, 138, 76, 0.3);
}

/* ===== Feature ===== */
.feature-card {
  text-align: center;
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: "";
  position: absolute;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(208, 138, 76, 0.08), transparent 70%);
  top: -30px;
  right: -30px;
  pointer-events: none;
}
.card-icon {
  width: 76px;
  height: 76px;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(208, 138, 76, 0.15), rgba(208, 138, 76, 0.05));
  border: 1px solid rgba(208, 138, 76, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  color: var(--primary);
  margin: 0 auto 24px;
}
.feature-card h3 {
  font-family: var(--font-serif);
  font-size: 22px;
  color: var(--text);
  margin-bottom: 14px;
}
.feature-card p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ===== Steps ===== */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  counter-reset: step;
}
.step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  position: relative;
  transition: all var(--transition);
}
.step:hover {
  transform: translateY(-4px);
  border-color: rgba(208, 138, 76, 0.3);
}
.step-num {
  font-family: var(--font-serif);
  font-size: 48px;
  font-weight: 700;
  color: rgba(208, 138, 76, 0.15);
  display: block;
  margin-bottom: 12px;
  line-height: 1;
}
.step h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
}
.step p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ===== Category Card ===== */
.category-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
  box-shadow: var(--shadow);
}
.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(208, 138, 76, 0.35);
}
.category-img {
  height: 220px;
  background-size: cover;
  background-position: center;
  position: relative;
}
.category-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(29, 24, 21, 0.6), transparent 60%);
}
.category-body {
  padding: 30px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.category-body h3 {
  font-family: var(--font-serif);
  font-size: 24px;
  color: var(--text);
  margin-bottom: 12px;
}
.category-body p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 20px;
}
.category-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
}
.category-link i {
  transition: transform var(--transition);
}
.category-card:hover .category-link i {
  transform: translateX(4px);
}

/* ===== Post List ===== */
.post-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  max-width: 860px;
  margin: 0 auto;
}
.post-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: all var(--transition);
  border-left: 4px solid var(--primary);
}
.post-card:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow);
  border-left-color: var(--primary-light);
}
.post-tag {
  display: inline-block;
  align-self: flex-start;
  padding: 4px 14px;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(208, 138, 76, 0.1);
  border-radius: 999px;
  margin-bottom: 12px;
  letter-spacing: 1px;
}
.post-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.5;
}
.post-card p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}
.post-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-dim);
}
.post-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-weight: 600;
}
.post-more i {
  transition: transform var(--transition);
}
.post-card:hover .post-more i {
  transform: translateX(4px);
}
.empty-tip {
  text-align: center;
  padding: 48px 24px;
  font-size: 16px;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}

/* ===== Stats ===== */
.stats-section {
  background-size: cover;
  background-position: center;
  position: relative;
  padding: 100px 0;
}
.stats-section .hero-overlay {
  background: rgba(22, 18, 16, 0.85);
}
.stats-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.stat-block {
  text-align: center;
  padding: 40px 24px;
  background: rgba(44, 36, 29, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  backdrop-filter: blur(6px);
}
.stat-number {
  font-family: var(--font-serif);
  font-size: 56px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  display: block;
  margin-bottom: 12px;
}
.stat-desc {
  font-size: 15px;
  color: var(--text-muted);
  letter-spacing: 2px;
}

/* ===== FAQ ===== */
.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 960px;
  margin: 0 auto;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: all var(--transition);
}
.faq-item:hover {
  border-color: rgba(208, 138, 76, 0.3);
  box-shadow: var(--shadow);
}
.faq-item h3 {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 14px;
}
.faq-item h3 i {
  color: var(--primary);
  font-size: 16px;
  margin-top: 4px;
}
.faq-item p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
  padding-left: 26px;
}

/* ===== CTA ===== */
.cta-section {
  padding: 100px 0;
}
.cta-box {
  background: linear-gradient(135deg, rgba(208, 138, 76, 0.15), rgba(126, 140, 90, 0.08));
  border: 1px solid rgba(208, 138, 76, 0.25);
  border-radius: 24px;
  padding: 72px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(208, 138, 76, 0.1), transparent 50%);
  pointer-events: none;
}
.cta-content {
  position: relative;
  z-index: 1;
}
.cta-content h2 {
  font-family: var(--font-serif);
  font-size: 36px;
  color: var(--text);
  margin-bottom: 16px;
}
.cta-content p {
  font-size: 17px;
  color: var(--text-muted);
  margin-bottom: 32px;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-deep);
  border-top: 2px solid var(--border);
  padding: 60px 0 0;
}
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand .brand-logo {
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: 15px;
  color: var(--text-muted);
  max-width: 320px;
  line-height: 1.7;
}
.footer-links h4 {
  font-size: 16px;
  color: var(--text);
  margin-bottom: 16px;
  font-family: var(--font-serif);
}
.footer-links a {
  display: block;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 10px;
  transition: all var(--transition);
}
.footer-links a:hover {
  color: var(--primary);
  padding-left: 6px;
}
.footer-meta {
  grid-column: 1 / -1;
  border-top: 1px solid var(--border);
  padding: 24px 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  font-size: 14px;
  color: var(--text-dim);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-content h1 {
    font-size: 42px;
  }
}
@media (max-width: 768px) {
  .section {
    padding: 70px 0;
  }
  .header-inner {
    height: 64px;
  }
  .brand-text {
    font-size: 17px;
    letter-spacing: 1px;
  }
  .brand-icon {
    width: 38px;
    height: 38px;
    font-size: 17px;
  }
  .header-help {
    display: none;
  }
  .nav-inner {
    height: 48px;
  }
  .nav-link {
    padding: 6px 16px;
    font-size: 14px;
  }
  .hero {
    min-height: 520px;
  }
  .hero-content {
    padding: 60px 24px;
  }
  .hero-content h1 {
    font-size: 34px;
  }
  .hero-lead {
    font-size: 16px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .hero-stats {
    gap: 24px;
    flex-wrap: wrap;
  }
  .grid-2, .grid-3 {
    grid-template-columns: 1fr;
  }
  .section-head h2 {
    font-size: 30px;
  }
  .faq-grid {
    grid-template-columns: 1fr;
  }
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-meta {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
  .cta-box {
    padding: 48px 24px;
  }
  .cta-actions {
    flex-direction: column;
  }
  .cta-actions .btn {
    width: 100%;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .brand-text {
    font-size: 14px;
  }
  .brand-icon {
    width: 32px;
    height: 32px;
    font-size: 14px;
  }
  .nav-brand-mark {
    display: none;
  }
  .hero-content h1 {
    font-size: 28px;
  }
  .hero-lead {
    font-size: 15px;
  }
  .stat-num {
    font-size: 24px;
  }
  .steps {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .section-head h2 {
    font-size: 26px;
  }
  .card {
    padding: 28px 20px;
  }
  .post-card {
    padding: 24px 20px;
  }
}

/* roulang page: article */
:root{
  --color-primary:#3a5a40;
  --color-primary-dark:#2b3d2e;
  --color-primary-soft:#e8efe4;
  --color-accent:#c47a30;
  --color-accent-dark:#9e5f22;
  --color-accent-soft:#fae9d4;
  --color-ink:#2b2d24;
  --color-paper:#f5efe2;
  --color-card:#fffaf0;
  --color-white:#ffffff;
  --color-muted:#6b6b5e;
  --color-border:#dad2bc;
  --color-heading:#24291f;
  --color-line:#ede5d2;
  --radius-sm:4px;
  --radius-md:10px;
  --radius-lg:16px;
  --radius-xl:24px;
  --shadow-sm:0 2px 8px rgba(43,45,36,.06);
  --shadow-md:0 8px 24px rgba(43,45,36,.10);
  --shadow-lg:0 18px 48px rgba(43,45,36,.14);
  --shadow-accent:0 8px 24px rgba(196,122,48,.22);
  --space-section:80px;
  --space-block:48px;
  --font-body:"Noto Sans SC",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  --font-head:"Noto Serif SC","Noto Sans SC",serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:var(--font-body);
  color:var(--color-ink);
  background:var(--color-paper);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg,video{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s,background .2s,border-color .2s,box-shadow .2s}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{list-style:none}
.container{width:min(1200px,92%);margin-inline:auto}
.container-narrow{width:min(860px,92%);margin-inline:auto}
:focus-visible{outline:3px solid var(--color-accent);outline-offset:2px}
::selection{background:var(--color-accent-soft);color:var(--color-accent-dark)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.72rem 1.5rem;
  border-radius:var(--radius-md);
  font-weight:600;font-size:1rem;line-height:1;
  cursor:pointer;border:2px solid transparent;
  transition:transform .2s,box-shadow .2s,background .2s,border-color .2s;
}
.btn-primary{background:var(--color-primary);color:var(--color-white);border-color:var(--color-primary)}
.btn-primary:hover{background:var(--color-primary-dark);border-color:var(--color-primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-accent)}
.btn-primary:active{transform:translateY(0)}
.btn-accent{background:var(--color-accent);color:#fff;border-color:var(--color-accent)}
.btn-accent:hover{background:var(--color-accent-dark);border-color:var(--color-accent-dark);transform:translateY(-2px);box-shadow:var(--shadow-accent)}
.btn-accent:active{transform:translateY(0)}
.btn-outline{background:transparent;color:var(--color-primary);border-color:var(--color-primary)}
.btn-outline:hover{background:var(--color-primary);color:#fff;border-color:var(--color-primary);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(0)}
.btn-sm{padding:.52rem 1rem;font-size:.9rem;border-radius:var(--radius-sm)}
.btn-lg{padding:.95rem 1.9rem;font-size:1.08rem;border-radius:var(--radius-md)}
.badge{
  display:inline-flex;align-items:center;gap:.35rem;
  padding:.22rem .75rem;border-radius:999px;
  font-size:.82rem;font-weight:600;
  background:var(--color-badge,#eee5d3);color:var(--color-primary-dark);
  border:1px solid var(--color-border);
}
.section{padding-block:var(--space-section)}
.section-head{text-align:center;max-width:760px;margin-inline:auto;margin-bottom:var(--space-block)}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:.4rem;
  font-size:.95rem;font-weight:700;color:var(--color-accent);
  letter-spacing:.04em;margin-bottom:1rem;
}
.section-title{
  font-family:var(--font-head);
  font-size:clamp(1.7rem,3vw,2.4rem);
  font-weight:900;color:var(--color-heading);
  line-height:1.3;letter-spacing:-0.01em;
}
.section-title .accent{color:var(--color-accent)}
.section-sub{color:var(--color-muted);font-size:1.05rem;margin-top:.8rem}
/* ---------- 站点导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:999;
  background:var(--color-card);
  border-bottom:2px solid var(--color-border);
  box-shadow:var(--shadow-sm);
}
.header-brand-row{background:var(--color-primary-dark);color:var(--color-white)}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  padding-block:.65rem;
}
.brand-logo{display:inline-flex;align-items:center;gap:.65rem;text-decoration:none}
.brand-icon{
  width:42px;height:42px;border-radius:var(--radius-md);
  background:var(--color-accent);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:1.1rem;box-shadow:inset 0 -3px 0 rgba(0,0,0,.18),0 4px 12px rgba(196,122,48,.35);
  transform:rotate(-4deg);
}
.brand-text{
  font-family:var(--font-head);
  font-size:1.25rem;font-weight:900;letter-spacing:.02em;
  color:var(--color-white);white-space:nowrap;
}
.header-tools{display:flex;align-items:center;gap:.8rem}
.header-help{
  color:rgba(255,255,255,.85);font-size:.9rem;font-weight:500;
  display:inline-flex;align-items:center;gap:.4rem;
  padding:.45rem .8rem;border-radius:var(--radius-sm);
  transition:background .2s,color .2s;
}
.header-help:hover{background:rgba(255,255,255,.12);color:#fff}
.header-nav-row{background:var(--color-card);border-bottom:1px solid var(--color-line)}
.nav-inner{display:flex;align-items:center;gap:.4rem;padding-block:.55rem;flex-wrap:wrap}
.nav-link{
  display:inline-flex;align-items:center;gap:.45rem;
  padding:.55rem 1.15rem;border-radius:var(--radius-md);
  color:var(--color-ink);font-weight:600;font-size:.98rem;
  border:2px solid transparent;
  transition:background .2s,color .2s,border-color .2s;
}
.nav-link:hover{background:var(--color-primary-soft);color:var(--color-primary-dark)}
.nav-link.active{background:var(--color-primary);color:var(--color-white)}
.nav-link.active:hover{background:var(--color-primary-dark);color:var(--color-white)}
.nav-brand-mark{
  margin-left:auto;font-size:.85rem;color:var(--color-muted);
  display:inline-flex;align-items:center;gap:.4rem;
}
.nav-brand-mark i{color:var(--color-accent)}
/* ---------- 文章标题 hero ---------- */
.post-hero{
  position:relative;
  background:linear-gradient(180deg,rgba(20,24,16,.72) 0%,rgba(30,34,24,.62) 100%),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding:clamp(3rem,7vw,5.6rem) 0;
  border-bottom:4px solid var(--color-accent);
  color:var(--color-white);
}
.post-hero .hero-crumb{display:flex;align-items:center;gap:.6rem;flex-wrap:wrap;font-size:.9rem;color:rgba(255,255,255,.82);margin-bottom:1.5rem}
.post-hero .hero-crumb a{color:rgba(255,255,255,.92)}
.post-hero .hero-crumb a:hover{color:#fff;text-decoration:underline}
.post-hero .hero-crumb i{color:var(--color-accent)}
.post-hero .hero-meta{display:flex;align-items:center;gap:1.2rem;flex-wrap:wrap;margin-bottom:1.2rem}
.post-hero .hero-meta .tag{
  display:inline-flex;align-items:center;gap:.4rem;
  background:rgba(196,122,48,.22);border:1px solid rgba(255,255,255,.4);
  color:#fff;font-size:.82rem;font-weight:600;
  padding:.28rem .85rem;border-radius:999px;
}
.post-hero h1{
  font-family:var(--font-head);
  font-size:clamp(1.8rem,4vw,2.8rem);
  font-weight:900;line-height:1.3;
  max-width:900px;letter-spacing:-0.01em;
  text-shadow:0 2px 16px rgba(0,0,0,.25);
}
.post-hero .hero-desc{
  margin-top:1rem;max-width:760px;font-size:1.08rem;
  color:rgba(255,255,255,.84);
}
/* ---------- 文章主体 ---------- */
.post-layout{padding-block:var(--space-block);display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:3rem;align-items:start}
.post-main{min-width:0}
.post-card{
  background:var(--color-card);
  border:2px solid var(--color-border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  padding:clamp(1.5rem,3vw,2.6rem);
  overflow:hidden;
}
.post-meta-row{
  display:flex;align-items:center;gap:.6rem;flex-wrap:wrap;
  padding-bottom:1.2rem;border-bottom:1px solid var(--color-line);
  margin-bottom:1.8rem;
}
.post-meta-row .meta-item{font-size:.88rem;color:var(--color-muted);display:flex;align-items:center;gap:.35rem}
.post-meta-row .meta-item i{color:var(--color-accent)}
.post-body{font-size:1.06rem;line-height:1.9;color:var(--color-ink);word-break:break-word}
.post-body p{margin-bottom:1.35em}
.post-body h2,.post-body h3,.post-body h4{font-family:var(--font-head);color:var(--color-heading);line-height:1.4;margin:1.7em 0 .7em;font-weight:800}
.post-body h2{font-size:1.55rem;padding-left:.9rem;border-left:4px solid var(--color-accent)}
.post-body h3{font-size:1.25rem}
.post-body h4{font-size:1.1rem;color:var(--color-primary)}
.post-body ul,.post-body ol{margin:0 0 1.4em;padding-left:1.6em}
.post-body ul{list-style:disc}
.post-body ol{list-style:decimal}
.post-body li{margin-bottom:.45em;line-height:1.8}
.post-body li::marker{color:var(--color-accent)}
.post-body img{border-radius:var(--radius-md);border:2px solid var(--color-border);margin:1.6em 0;box-shadow:var(--shadow-sm)}
.post-body blockquote{
  border-left:4px solid var(--color-accent);
  background:var(--color-accent-soft);
  padding:1.1rem 1.4rem;border-radius:0 var(--radius-md) var(--radius-md) 0;
  margin:1.6em 0;font-family:var(--font-head);color:var(--color-primary-dark);
  font-weight:600;
}
.post-body blockquote p{margin:0}
.post-body a{color:var(--color-accent-dark);text-decoration:underline;text-underline-offset:3px}
.post-body a:hover{color:var(--color-primary)}
.post-body strong{color:var(--color-primary-dark);font-weight:700}
.post-body code{
  background:var(--color-primary-soft);padding:.15rem .45rem;
  border-radius:var(--radius-sm);font-size:.92em;color:var(--color-primary-dark);
  font-family:"SFMono-Regular",Consolas,monospace;
}
.post-body table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:.98rem}
.post-body th{background:var(--color-primary);color:#fff;text-align:left;padding:.7rem 1rem;font-weight:600}
.post-body td{border:1px solid var(--color-border);padding:.65rem 1rem}
.post-body tr:nth-child(even) td{background:var(--color-primary-soft)}
.post-footer-tags{
  display:flex;align-items:center;gap:.6rem;flex-wrap:wrap;
  padding-top:1.4rem;border-top:1px dashed var(--color-border);margin-top:2rem;
}
.post-footer-tags .tag-label{font-size:.9rem;font-weight:700;color:var(--color-muted)}
.post-footer-tags a{
  font-size:.85rem;font-weight:600;padding:.25rem .8rem;
  border-radius:999px;background:var(--color-accent-soft);
  color:var(--color-accent-dark);border:1px solid var(--color-accent);
}
.post-footer-tags a:hover{background:var(--color-accent);color:#fff}
/* 文章不作为：找不到 */
.post-not-found{background:var(--color-card);border:2px solid var(--color-border);border-radius:var(--radius-lg);padding:3rem;text-align:center;box-shadow:var(--shadow-sm)}
.post-not-found .nf-icon{font-size:3rem;color:var(--color-accent);margin-bottom:1rem}
.post-not-found h1{font-family:var(--font-head);font-size:1.8rem;margin-bottom:.6rem}
.post-not-found p{color:var(--color-muted);margin-bottom:1.5rem}
/* 上一篇 / 下一篇 */
.post-prevnext{
  margin-top:1.8rem;display:grid;grid-template-columns:1fr 1fr;gap:1.2rem;
}
.post-prevnext a{
  background:var(--color-card);border:2px solid var(--color-border);
  border-radius:var(--radius-md);padding:1.2rem;
  display:flex;flex-direction:column;gap:.35rem;
  transition:border-color .2s,box-shadow .2s,transform .2s;
}
.post-prevnext a:hover{border-color:var(--color-accent);box-shadow:var(--shadow-md);transform:translateY(-2px)}
.post-prevnext a .pn-label{font-size:.82rem;color:var(--color-muted);display:flex;align-items:center;gap:.4rem}
.post-prevnext a .pn-label i{color:var(--color-accent)}
.post-prevnext a .pn-title{font-weight:700;font-size:1rem;color:var(--color-heading);line-height:1.5}
.post-prevnext a:hover .pn-title{color:var(--color-accent-dark)}
.post-prevnext a.next{text-align:right}
.post-prevnext a.next .pn-label{justify-content:flex-end}
/* 侧栏 */
.post-side{display:flex;flex-direction:column;gap:1.8rem;position:sticky;top:120px}
.side-card{
  background:var(--color-card);border:2px solid var(--color-border);
  border-radius:var(--radius-md);padding:1.5rem;
  box-shadow:var(--shadow-sm);
}
.side-card-head{display:flex;align-items:center;gap:.6rem;margin-bottom:1.1rem;padding-bottom:.8rem;border-bottom:2px solid var(--color-line)}
.side-card-head i{color:var(--color-accent);font-size:1.1rem}
.side-card-head h3{font-family:var(--font-head);font-size:1.06rem;font-weight:800;color:var(--color-heading)}
.side-card .side-list{display:flex;flex-direction:column;gap:.75rem}
.side-card .side-list a{
  display:flex;gap:.8rem;align-items:center;
  font-size:.95rem;font-weight:600;color:var(--color-ink);
  padding:.55rem .7rem;border-radius:var(--radius-sm);
  border-left:3px solid transparent;
  transition:background .2s,border-color .2s,color .2s;
}
.side-card .side-list a:hover{background:var(--color-primary-soft);border-left-color:var(--color-accent);color:var(--color-primary-dark)}
.side-card .side-list a i{width:20px;text-align:center;color:var(--color-accent)}
.side-cover{position:relative;border-radius:var(--radius-md);overflow:hidden;border:2px solid var(--color-border)}
.side-cover img{width:100%;height:120px;object-fit:cover}
.side-cover .cover-mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,0) 30%,rgba(0,0,0,.7));display:flex;align-items:flex-end;padding:1rem}
.side-cover .cover-mask span{color:#fff;font-weight:700;font-size:.95rem}
.side-card-mini{
  text-align:center;padding:1.8rem 1.4rem;
  background:var(--color-primary-dark);
  border-color:var(--color-primary-dark);
  color:var(--color-white);
  position:relative;overflow:hidden;
}
.side-card-mini::after{content:'';position:absolute;width:160px;height:160px;border-radius:50%;background:rgba(255,255,255,.06);top:-60px;right:-60px}
.side-card-mini h3{font-family:var(--font-head);font-size:1.15rem;margin-bottom:.6rem}
.side-card-mini p{font-size:.9rem;color:rgba(255,255,255,.75);margin-bottom:1.2rem}
.side-card-mini .btn{position:relative;z-index:1}
/* FAQ */
.post-faq{background:var(--color-card);border-top:2px dashed var(--color-border);border-bottom:2px dashed var(--color-border)}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem}
.faq-item{
  background:var(--color-paper);border:2px solid var(--color-border);
  border-radius:var(--radius-md);padding:1.4rem;
  transition:border-color .2s,box-shadow .2s,transform .2s;
}
.faq-item:hover{border-color:var(--color-accent);box-shadow:var(--shadow-md);transform:translateY(-2px)}
.faq-item summary{
  font-weight:700;font-size:1.05rem;color:var(--color-heading);
  display:flex;align-items:center;gap:.7rem;cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:'Q';
  flex-shrink:0;width:30px;height:30px;border-radius:var(--radius-sm);
  background:var(--color-accent);color:#fff;font-size:.8rem;font-weight:800;
  display:flex;align-items:center;justify-content:center;
}
.faq-item[open] summary::before{content:'A';background:var(--color-primary)}
.faq-item .faq-answer{
  margin-top:1rem;padding-left:2.7rem;color:var(--color-muted);
  font-size:.98rem;line-height:1.85;
}
/* CTA */
.post-cta{
  position:relative;
  background:linear-gradient(135deg,rgba(43,61,46,.95),rgba(58,90,64,.9)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding:clamp(2.8rem,6vw,4.8rem) 0;
  text-align:center;color:var(--color-white);
}
.post-cta h2{
  font-family:var(--font-head);font-size:clamp(1.6rem,3vw,2.2rem);font-weight:900;
  margin-bottom:.8rem;
}
.post-cta p{max-width:680px;margin:0 auto 1.6rem;color:rgba(255,255,255,.82);font-size:1.05rem}
.post-cta .cta-btns{display:flex;justify-content:center;gap:1rem;flex-wrap:wrap}
/* ---------- 站点页脚 ---------- */
.site-footer{
  background:var(--color-primary-dark);
  color:rgba(255,255,255,.78);
  padding-block:3.4rem 2.4rem;
  border-top:4px solid var(--color-accent);
}
.footer-inner{
  display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:2.5rem;
}
.footer-brand .brand-logo{margin-bottom:.8rem}
.footer-brand p{font-size:.94rem;line-height:1.8;max-width:360px;color:rgba(255,255,255,.68)}
.footer-links h4{
  font-family:var(--font-head);font-size:1.02rem;font-weight:700;
  color:#fff;margin-bottom:1rem;letter-spacing:.02em;
}
.footer-links a{
  display:block;padding:.3rem 0;color:rgba(255,255,255,.68);
  font-size:.95rem;transition:color .2s,padding-left .2s;
}
.footer-links a:hover{color:var(--color-accent);padding-left:.4rem}
.footer-meta{text-align:right}
.footer-meta p{font-size:.88rem;color:rgba(255,255,255,.5);margin-bottom:.3rem}
/* responsive */
@media (max-width:1024px){
  .post-layout{grid-template-columns:minmax(0,1fr) 280px;gap:2rem}
  .nav-inner{overflow-x:auto;flex-wrap:nowrap;padding-block:.8rem}
  .nav-brand-mark{display:none}
}
@media (max-width:768px){
  :root{--space-section:60px;--space-block:36px}
  .header-inner{flex-wrap:wrap;gap:.6rem;row-gap:.4rem}
  .brand-text{font-size:1.1rem}
  .header-tools .header-help{display:none}
  .post-layout{grid-template-columns:1fr;gap:2rem}
  .post-side{position:static;flex-direction:row;flex-wrap:wrap}
  .side-card{flex:1 1 220px}
  .faq-grid{grid-template-columns:1fr}
  .post-prevnext{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr;gap:2rem;text-align:center}
  .footer-brand p{margin-inline:auto}
  .footer-meta{text-align:center}
  .cta-btns .btn{flex:1;max-width:260px}
}
@media (max-width:520px){
  .header-inner{flex-direction:column;align-items:flex-start}
  .header-tools{width:100%;justify-content:flex-end}
  .brand-text{font-size:1rem}
  .nav-link{font-size:.9rem;padding:.5rem .8rem;flex:0 0 auto}
  .post-card{padding:1.3rem}
  .post-body{font-size:1rem;line-height:1.82}
  .post-hero h1{font-size:1.5rem}
  .post-hero .hero-desc{font-size:.98rem}
  .post-footer-tags{gap:.4rem}
  .faq-item{padding:1.1rem}
  .faq-item .faq-answer{padding-left:0}
  .post-cta .cta-btns{flex-direction:column;align-items:center}
  .post-cta .cta-btns .btn{width:100%}
}

/* roulang page: category1 */
:root {
  --primary: #c65d3b;
  --primary-dark: #a8472b;
  --primary-light: #f2d9cd;
  --accent: #d9a05b;
  --accent-light: #f7ead6;
  --ink: #2d2823;
  --ink-soft: #5d534a;
  --muted: #8a7a6c;
  --bg: #f6f1e7;
  --bg-deep: #2b2620;
  --card-bg: #fffcf7;
  --border: #e4d8c8;
  --border-dark: #cbb9a4;
  --white: #fffefb;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-soft: 0 12px 30px rgba(0, 0, 0, 0.06);
  --shadow-float: 0 18px 40px rgba(0, 0, 0, 0.12);
  --space-section: clamp(60px, 8vw, 100px);
  --font-serif: "Noto Serif SC", "Songti SC", "SimSun", serif;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

button {
  font-family: var(--font-sans);
  cursor: pointer;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* header */
.site-header {
  background: var(--bg-deep);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.18);
}

.header-brand-row {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: 16px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 1px;
  line-height: 1.3;
}

.brand-logo:hover {
  color: var(--accent);
}

.brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-size: 18px;
  box-shadow: 0 4px 12px rgba(198, 93, 59, 0.35);
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-help {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 14px;
  padding: 8px 14px;
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.25s ease;
}

.header-help:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.22);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: 30px;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.4;
  transition: all 0.25s ease;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 18px rgba(198, 93, 59, 0.35);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(198, 93, 59, 0.42);
  color: #fff;
}

.btn-sm {
  padding: 7px 14px;
  font-size: 13px;
}

.btn-outline {
  background: transparent;
  color: var(--primary-dark);
  border: 2px solid var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}

.btn-accent {
  background: var(--accent);
  color: var(--ink);
}

.btn-accent:hover {
  box-shadow: 0 10px 24px rgba(217, 160, 91, 0.4);
  transform: translateY(-2px);
  color: var(--ink);
}

.btn-lg {
  padding: 15px 36px;
  font-size: 16px;
}

.header-nav-row {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 4px;
  min-height: 52px;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.25) transparent;
}

.nav-inner::-webkit-scrollbar {
  height: 4px;
}

.nav-inner::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.25);
  border-radius: 4px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 15px;
  font-weight: 400;
  padding: 9px 16px;
  border-radius: 8px;
  white-space: nowrap;
  position: relative;
  transition: background 0.25s ease, color 0.25s ease;
}

.nav-link i {
  font-size: 14px;
  opacity: 0.85;
}

.nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.nav-link.active {
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
  font-weight: 500;
}

.nav-link.active::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 4px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.nav-brand-mark {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.45);
  font-size: 13px;
  white-space: nowrap;
  padding-right: 4px;
}

.nav-brand-mark i {
  color: var(--accent);
}

/* page hero */
.page-hero {
  position: relative;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  padding: 80px 24px;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(130deg, rgba(43, 38, 32, 0.82), rgba(43, 38, 32, 0.6), rgba(43, 38, 32, 0.78));
}

.page-hero .hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.page-hero .hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  letter-spacing: 3px;
  color: var(--accent);
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(217, 160, 91, 0.35);
  padding: 8px 20px;
  border-radius: 30px;
  margin-bottom: 20px;
}

.page-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(32px, 5vw, 52px);
  color: #fff;
  font-weight: 900;
  line-height: 1.3;
  letter-spacing: 2px;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.page-hero .hero-sub {
  color: rgba(255, 255, 255, 0.8);
  font-size: 16px;
  max-width: 600px;
  margin: 16px auto 0;
  line-height: 1.9;
}

.page-hero .hero-breadcrumb {
  margin-top: 22px;
  color: rgba(255, 255, 255, 0.55);
  font-size: 13px;
}

.page-hero .hero-breadcrumb a {
  color: rgba(255, 255, 255, 0.75);
}

.page-hero .hero-breadcrumb a:hover {
  color: var(--accent);
}

/* section base */
.section {
  padding: var(--space-section) 0;
}

.section-alt {
  background: var(--card-bg);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-head {
  max-width: 680px;
  margin: 0 auto 52px;
  text-align: center;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 3px;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.section-eyebrow::before,
.section-eyebrow::after {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--primary-light);
}

.section-head h2 {
  font-family: var(--font-serif);
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 700;
  color: var(--ink);
  line-height: 1.4;
}

.section-head p {
  color: var(--ink-soft);
  margin-top: 12px;
  font-size: 15px;
}

/* guide steps */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}

.step-card {
  position: relative;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 40px 24px 28px;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.step-card::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  top: -18px;
  left: 24px;
  background: var(--primary);
  color: #fff;
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 16px rgba(198, 93, 59, 0.35);
}

.step-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-float);
  border-color: var(--border-dark);
}

.step-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--primary-light);
  color: var(--primary-dark);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 16px;
}

.step-card h3 {
  font-family: var(--font-serif);
  font-size: 19px;
  margin-bottom: 10px;
  color: var(--ink);
}

.step-card p {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.8;
}

/* methods */
.methods-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.method-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.method-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-float);
}

.method-card .method-media {
  height: 200px;
  overflow: hidden;
}

.method-card .method-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.method-card:hover .method-media img {
  transform: scale(1.05);
}

.method-card .method-body {
  padding: 26px;
}

.method-badge {
  display: inline-block;
  background: var(--accent-light);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 30px;
  margin-bottom: 12px;
  border: 1px solid rgba(198, 93, 59, 0.15);
}

.method-card h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  margin-bottom: 8px;
  color: var(--ink);
}

.method-card p {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.8;
  margin-bottom: 16px;
}

.method-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}

.method-link:hover {
  color: var(--primary-dark);
  gap: 10px;
}

/* safety */
.safety-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.safety-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  border: 4px solid var(--white);
}

.safety-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(43, 38, 32, 0.55));
}

.safety-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 380px;
}

.safety-media .safety-caption {
  position: absolute;
  bottom: 20px;
  left: 20px;
  z-index: 1;
  color: #fff;
  font-family: var(--font-serif);
  font-size: 16px;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}

.safety-content h2 {
  font-family: var(--font-serif);
  font-size: 30px;
  line-height: 1.5;
  margin-bottom: 14px;
}

.safety-content > p {
  color: var(--ink-soft);
  margin-bottom: 24px;
}

.safety-list {
  list-style: none;
  display: grid;
  gap: 14px;
}

.safety-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--white);
  border: 1px solid var(--border);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-size: 14px;
  color: var(--ink-soft);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.safety-list li:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-soft);
}

.safety-list i {
  color: var(--primary);
  font-size: 15px;
  margin-top: 4px;
}

/* news */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.news-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.news-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-float);
}

.news-card .news-thumb {
  height: 170px;
  background-size: cover;
  background-position: center;
  position: relative;
}

.news-card .news-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(198, 93, 59, 0.9);
  color: #fff;
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 30px;
  backdrop-filter: blur(4px);
}

.news-card .news-body {
  padding: 22px 22px 18px;
}

.news-card h3 {
  font-size: 16px;
  font-weight: 500;
  line-height: 1.7;
  color: var(--ink);
  margin-bottom: 8px;
}

.news-card h3 a {
  color: var(--ink);
}

.news-card h3 a:hover {
  color: var(--primary);
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--muted);
}

.news-meta i {
  font-size: 12px;
}

/* faq */
.faq-wrap {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: box-shadow 0.25s ease, border-color 0.25s ease;
}

.faq-item:hover {
  border-color: var(--border-dark);
  box-shadow: var(--shadow-soft);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  text-align: left;
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
  transition: color 0.25s ease;
}

.faq-question:hover {
  color: var(--primary);
}

.faq-question i {
  color: var(--primary);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item.open .faq-question i {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.9;
  border-top: 1px dashed var(--border);
  padding-top: 16px;
  margin-top: 0;
}

.faq-note {
  text-align: center;
  margin-top: 26px;
  font-size: 14px;
  color: var(--muted);
}

.faq-note a {
  color: var(--primary);
  font-weight: 500;
}

/* cta */
.cta-section {
  position: relative;
  background-image: url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  padding: 84px 0;
  border-radius: 0;
}

.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(130deg, rgba(43, 38, 32, 0.92), rgba(43, 38, 32, 0.74));
}

.cta-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}

.cta-inner h2 {
  font-family: var(--font-serif);
  color: #fff;
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1.45;
  margin-bottom: 16px;
}

.cta-inner p {
  color: rgba(255, 255, 255, 0.78);
  margin-bottom: 30px;
  font-size: 15px;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.cta-note {
  margin-top: 20px;
  color: rgba(255, 255, 255, 0.45);
  font-size: 13px;
  letter-spacing: 1px;
}

/* footer */
.site-footer {
  background: var(--bg-deep);
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 32px;
  border-top: 3px solid var(--primary);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .brand-logo {
  margin-bottom: 14px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.5);
}

.footer-links h4 {
  color: #fff;
  font-size: 15px;
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.footer-links a {
  display: block;
  color: rgba(255, 255, 255, 0.55);
  font-size: 14px;
  padding: 5px 0;
}

.footer-links a:hover {
  color: var(--accent);
}

.footer-meta {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: flex-end;
  text-align: right;
  gap: 6px;
}

.footer-meta p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.35);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 22px;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.3);
}

/* responsive */
@media (max-width: 1024px) {
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 32px;
  }

  .methods-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 18px;
  }

  .header-inner {
    min-height: 60px;
  }

  .brand-text {
    font-size: 16px;
  }

  .brand-icon {
    width: 36px;
    height: 36px;
    font-size: 16px;
  }

  .header-help span {
    display: none;
  }

  .nav-brand-mark {
    display: none;
  }

  .page-hero {
    min-height: 260px;
    padding: 60px 18px;
    background-attachment: scroll;
  }

  .safety-wrap {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .safety-media img {
    min-height: 260px;
  }

  .cta-actions .btn {
    width: 100%;
  }
}

@media (max-width: 520px) {
  body {
    font-size: 15px;
  }

  .header-tools .btn-sm {
    font-size: 12px;
    padding: 6px 12px;
  }

  .brand-text {
    font-size: 16px;
  }

  .nav-link {
    font-size: 14px;
    padding: 8px 12px;
  }

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

  .methods-grid {
    grid-template-columns: 1fr;
  }

  .news-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-meta {
    align-items: flex-start;
    text-align: left;
  }

  .page-hero h1 {
    font-size: 28px;
  }

  .section-head h2 {
    font-size: 24px;
  }

  .step-card {
    padding: 30px 20px 24px;
  }
}