/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --color-bg: #F6F7F2;
  --color-dark: #131513;
  --color-dark-panel: #1A1D1A;
  --color-primary: #00C896;
  --color-primary-dark: #00A37A;
  --color-accent: #F4B740;
  --color-accent-soft: #FFF6E0;
  --color-text-primary: #1C1E1A;
  --color-text-body: #3A3D36;
  --color-text-muted: #7B8074;
  --color-border: #E4E6DD;
  --color-border-dark: rgba(255,255,255,0.12);
  --color-danger: #E5484D;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 10px;
  --shadow-card: 0 8px 30px rgba(20,25,18,0.06);
  --shadow-dark: 0 12px 40px rgba(0,0,0,0.35);
  --shadow-hover: 0 14px 40px rgba(0,200,150,0.12);
  --container-max: 1200px;
  --section-space: 96px;
  --section-space-mobile: 56px;
}

/* ===== Reset / Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text-body);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input { font-family: inherit; }

/* ===== 容器 ===== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}
@media (max-width: 640px) {
  .container { padding-left: 16px; padding-right: 16px; }
}

/* ===== 板块通用 ===== */
.section { padding: var(--section-space) 0; }
@media (max-width: 768px) {
  .section { padding: var(--section-space-mobile) 0; }
}
.section-header {
  margin-bottom: 48px;
}
.section-header h2 {
  font-size: 32px;
  line-height: 1.25;
  color: var(--color-text-primary);
  font-weight: 700;
  letter-spacing: 0.01em;
}
.section-header .section-sub {
  color: var(--color-text-muted);
  margin-top: 8px;
  max-width: 640px;
  font-size: 15px;
}
@media (max-width: 768px) {
  .section-header h2 { font-size: 24px; }
}

/* ===== Header / 导航面板 ===== */
.site-header {
  position: fixed;
  top: 12px;
  left: 12px;
  right: 12px;
  z-index: 100;
  pointer-events: none;
}
.nav-panel {
  pointer-events: auto;
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--color-dark-panel);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-lg);
  padding: 10px 16px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.25);
  position: relative;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 20px;
  color: #fff;
  letter-spacing: 0.02em;
  flex-shrink: 0;
}
.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 12px rgba(0,200,150,0.6);
  flex-shrink: 0;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  justify-content: center;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.04);
  border: 1px solid transparent;
  color: #C9CDC2;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.nav-link:hover {
  background: rgba(255,255,255,0.1);
  color: #fff;
  border-color: rgba(255,255,255,0.12);
}
.nav-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  color: #fff;
}
.nav-link.active {
  background: var(--color-primary);
  color: #0B1D16;
  border-color: transparent;
  font-weight: 600;
  box-shadow: 0 0 16px rgba(0,200,150,0.2);
}
.btn-nav {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: #0B1D16;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.btn-nav:hover {
  background: var(--color-primary-dark);
  color: #fff;
  transform: translateY(-1px);
}
.btn-nav:active {
  transform: translateY(0);
}
.btn-nav:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  color: #fff;
  border: 1px solid var(--color-border-dark);
  border-radius: 10px;
  font-size: 20px;
  transition: all 0.2s ease;
}
.nav-toggle:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.25);
}
.nav-toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background:
    linear-gradient(180deg, rgba(19,21,19,0.58) 0%, rgba(19,21,19,0.85) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  padding: 120px 0 64px;
  overflow: hidden;
}
.hero-content {
  text-align: center;
  max-width: 860px;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}
.hero-eyebrow {
  display: inline-block;
  padding: 5px 16px;
  border: 1px solid rgba(244,183,64,0.45);
  border-radius: 999px;
  color: var(--color-accent);
  font-size: 13px;
  letter-spacing: 0.08em;
  margin-bottom: 20px;
  background: rgba(244,183,64,0.06);
  text-transform: uppercase;
}
.hero h1 {
  font-size: 52px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  letter-spacing: 0.02em;
  text-shadow: 0 0 30px rgba(244,183,64,0.25), 0 0 80px rgba(244,183,64,0.08);
}
.hero-sub {
  color: rgba(255,255,255,0.82);
  font-size: 18px;
  margin-top: 18px;
  line-height: 1.7;
}
.hero-tags {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 26px;
  flex-wrap: wrap;
}
.hero-tags span {
  padding: 5px 14px;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 999px;
  color: rgba(255,255,255,0.78);
  font-size: 13px;
  background: rgba(255,255,255,0.04);
}
.hero-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-top: 34px;
  flex-wrap: wrap;
}
@media (max-width: 768px) {
  .hero h1 { font-size: 34px; }
  .hero-sub { font-size: 16px; }
}
@media (max-width: 640px) {
  .hero { min-height: 90vh; padding-top: 110px; }
  .hero-actions { flex-direction: column; align-items: center; }
}

/* ===== 按钮 ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: #0B1D16;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.2s ease;
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,200,150,0.25);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-primary:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: var(--radius-md);
  border: 1.5px solid rgba(255,255,255,0.6);
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.2s ease;
  background: transparent;
}
.btn-outline:hover {
  background: #fff;
  color: var(--color-dark);
  border-color: #fff;
  transform: translateY(-2px);
}
.btn-outline:active {
  transform: translateY(0);
}
.btn-outline:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}
.btn-outline-dark {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.btn-outline-dark:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* ===== 品牌理念 ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 56px;
  align-items: center;
}
.about-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
}
.about-image img {
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.about-image:hover img {
  transform: scale(1.02);
}
.about-text p {
  margin-bottom: 20px;
  line-height: 1.8;
}
.about-text .lead {
  font-size: 18px;
  color: var(--color-text-primary);
  font-weight: 600;
  line-height: 1.8;
  border-left: 3px solid var(--color-primary);
  padding-left: 18px;
}
@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .about-image img { min-height: 260px; }
}

/* ===== 精选内容卡 ===== */
.featured-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
}
.featured-main {
  background: var(--color-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  min-height: 440px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  color: #fff;
  box-shadow: var(--shadow-dark);
  border: 1px solid var(--color-border-dark);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.featured-main:hover {
  border-color: rgba(0,200,150,0.4);
  box-shadow: 0 16px 48px rgba(0,0,0,0.45);
}
.featured-media {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.featured-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
  transition: transform 0.5s ease, opacity 0.3s ease;
}
.featured-main:hover .featured-media img {
  transform: scale(1.03);
  opacity: 0.45;
}
.featured-main::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(19,21,19,0.75) 100%);
  pointer-events: none;
}
.featured-body {
  position: relative;
  z-index: 1;
  padding: 32px;
}
.featured-badge {
  display: inline-block;
  padding: 4px 14px;
  background: var(--color-accent);
  color: #1C1E1A;
  font-size: 12px;
  font-weight: 700;
  border-radius: 999px;
  margin-bottom: 14px;
  letter-spacing: 0.03em;
}
.featured-main .featured-body h3 {
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  line-height: 1.35;
  margin-bottom: 10px;
}
.featured-main .featured-body p {
  color: rgba(255,255,255,0.68);
  font-size: 14px;
  line-height: 1.7;
  max-width: 460px;
}
.featured-main .featured-body .featured-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 600;
  transition: gap 0.2s ease;
}
.featured-main .featured-body .featured-link:hover {
  gap: 10px;
}
.featured-side {
  display: grid;
  grid-template-rows: 1fr 1fr;
  gap: 24px;
}
.featured-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}
.featured-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-hover);
}
.featured-card .featured-img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.featured-card:hover .featured-img {
  transform: scale(1.02);
}
.featured-card .featured-info {
  padding: 18px 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 10px;
}
.featured-card .featured-info h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-primary);
  line-height: 1.45;
  transition: color 0.2s ease;
}
.featured-card:hover .featured-info h4 {
  color: var(--color-primary-dark);
}
.featured-card .featured-meta {
  font-size: 12px;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}
@media (max-width: 1024px) {
  .featured-grid { grid-template-columns: 1fr; }
  .featured-side { grid-template-columns: 1fr 1fr; grid-template-rows: none; }
}
@media (max-width: 640px) {
  .featured-side { grid-template-columns: 1fr; }
  .featured-main { min-height: 360px; }
  .featured-main .featured-body h3 { font-size: 20px; }
}

/* ===== 资讯列表 ===== */
.news-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 48px;
}
@media (max-width: 768px) {
  .news-grid { grid-template-columns: 1fr; gap: 0; }
}
.news-row {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 18px 12px;
  border-bottom: 1px solid var(--color-border);
  border-radius: 12px;
  transition: background 0.2s ease;
  margin: 0 -12px;
}
.news-row:hover {
  background: rgba(0,200,150,0.04);
}
.news-time {
  font-family: ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", monospace;
  font-size: 13px;
  color: var(--color-text-muted);
  flex-shrink: 0;
  width: 96px;
  line-height: 1.4;
  padding-left: 12px;
  border-left: 2px solid var(--color-accent);
}
.news-main {
  flex: 1;
  min-width: 0;
}
.news-main h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-primary);
  line-height: 1.5;
  margin-bottom: 4px;
}
.news-main h3 a {
  transition: color 0.2s ease;
}
.news-main h3 a:hover {
  color: var(--color-primary-dark);
}
.news-main p {
  font-size: 13px;
  color: var(--color-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.5;
}
.news-cat {
  flex-shrink: 0;
  font-size: 12px;
  color: var(--color-primary-dark);
  background: rgba(0,200,150,0.1);
  padding: 3px 12px;
  border-radius: 999px;
  font-weight: 500;
  white-space: nowrap;
}
.news-link {
  flex-shrink: 0;
  align-self: center;
  color: var(--color-text-muted);
  font-size: 14px;
  transition: color 0.2s ease, transform 0.2s ease;
  white-space: nowrap;
}
.news-row:hover .news-link {
  color: var(--color-primary);
  transform: translateX(4px);
}
.news-empty {
  padding: 48px 24px;
  text-align: center;
  background: var(--color-accent-soft);
  border-radius: var(--radius-lg);
  color: var(--color-text-muted);
  font-size: 15px;
  border: 1px dashed var(--color-accent);
}
@media (max-width: 640px) {
  .news-time { width: 76px; font-size: 12px; }
  .news-cat { display: none; }
}

/* ===== 信任背书 ===== */
.trust-wrap {
  background: var(--color-dark);
  border-radius: var(--radius-lg);
  padding: 56px;
  color: #fff;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-border-dark);
  box-shadow: var(--shadow-dark);
}
.trust-wrap::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(244,183,64,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.trust-stats {
  display: flex;
  gap: 32px;
  justify-content: space-between;
  flex-wrap: wrap;
  margin-bottom: 56px;
  border-bottom: 1px solid var(--color-border-dark);
  padding-bottom: 40px;
}
.stat-item {
  flex: 1;
  min-width: 160px;
}
.stat-value {
  font-family: ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", monospace;
  font-size: 34px;
  font-weight: 700;
  color: var(--color-accent);
  display: block;
  line-height: 1.2;
}
.stat-label {
  color: rgba(255,255,255,0.58);
  font-size: 14px;
  margin-top: 6px;
  display: block;
}
.trust-list {
  display: flex;
  flex-direction: column;
}
.trust-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 20px 0;
  border-top: 1px solid var(--color-border-dark);
}
.trust-item:first-child {
  border-top: none;
}
.trust-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(244,183,64,0.12);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 18px;
}
.trust-item h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}
.trust-item p {
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  line-height: 1.7;
  max-width: 640px;
}
@media (max-width: 768px) {
  .trust-wrap { padding: 32px 24px; }
  .stat-value { font-size: 28px; }
}

/* ===== FAQ ===== */
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
}
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #fff;
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.faq-item:hover {
  border-color: rgba(0,200,150,0.4);
}
.faq-item.open {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-card);
}
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-primary);
  cursor: pointer;
  transition: color 0.2s ease;
  width: 100%;
  text-align: left;
  background: #fff;
}
.faq-q:hover {
  color: var(--color-primary-dark);
}
.faq-q:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
  border-radius: var(--radius-md);
}
.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary-dark);
  font-size: 18px;
  flex-shrink: 0;
  transition: all 0.25s ease;
  line-height: 1;
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--color-primary);
  color: #fff;
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-a-inner {
  padding: 0 24px 20px;
  font-size: 15px;
  color: var(--color-text-body);
  line-height: 1.8;
  border-top: 1px solid var(--color-border);
  margin: 0 24px 0;
  padding: 16px 0 20px;
}

/* ===== CTA 订阅 ===== */
.cta-section {
  position: relative;
  padding: var(--section-space) 0;
  background:
    linear-gradient(180deg, rgba(19,21,19,0.88), rgba(19,21,19,0.92)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
}
.cta-inner {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
  color: #fff;
}
.cta-inner h2 {
  color: #fff;
  font-size: 32px;
  font-weight: 700;
}
.cta-inner .cta-desc {
  color: rgba(255,255,255,0.7);
  margin-top: 10px;
  font-size: 15px;
}
.cta-form {
  display: flex;
  gap: 12px;
  margin-top: 30px;
}
.cta-form input {
  flex: 1;
  height: 48px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-dark);
  background: rgba(255,255,255,0.08);
  padding: 0 16px;
  color: #fff;
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.cta-form input::placeholder {
  color: rgba(255,255,255,0.4);
}
.cta-form input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0,200,150,0.2);
  background: rgba(255,255,255,0.12);
}
.cta-form input:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
.cta-form .btn-submit {
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: #0B1D16;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.2s ease;
}
.cta-form .btn-submit:hover {
  background: var(--color-primary-dark);
  color: #fff;
  transform: translateY(-1px);
}
.cta-form .btn-submit:active {
  transform: translateY(0);
}
.cta-form .btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
.cta-note {
  color: rgba(255,255,255,0.45);
  font-size: 13px;
  margin-top: 14px;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-top: 24px;
  flex-wrap: wrap;
}
@media (max-width: 640px) {
  .cta-form { flex-direction: column; }
  .cta-form .btn-submit { width: 100%; }
  .cta-inner h2 { font-size: 24px; }
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--color-dark);
  color: rgba(255,255,255,0.6);
  padding: 56px 0 24px;
  border-top: 1px solid var(--color-border-dark);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .brand {
  margin-bottom: 12px;
}
.footer-brand p {
  font-size: 14px;
  max-width: 360px;
  line-height: 1.7;
}
.footer-col h5 {
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: 0.03em;
}
.footer-col ul {
  list-style: none;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  transition: color 0.2s ease;
}
.footer-col ul li a:hover {
  color: var(--color-primary);
}
.footer-bottom {
  border-top: 1px solid var(--color-border-dark);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}
.footer-bottom a {
  color: rgba(255,255,255,0.5);
}
.footer-bottom a:hover {
  color: var(--color-primary);
}
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; }
}

/* ===== 移动端导航 ===== */
@media (max-width: 1023px) {
  .nav-links {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--color-dark-panel);
    border: 1px solid var(--color-border-dark);
    border-radius: var(--radius-md);
    padding: 12px;
    gap: 8px;
    display: none;
    box-shadow: 0 20px 50px rgba(0,0,0,0.4);
  }
  .nav-links.open {
    display: flex;
  }
  .nav-link {
    justify-content: flex-start;
    padding: 12px 16px;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .btn-nav {
    margin-left: auto;
  }
}
@media (max-width: 640px) {
  .site-header { top: 8px; left: 8px; right: 8px; }
  .nav-panel { padding: 8px 12px; gap: 10px; }
  .brand { font-size: 18px; }
  .btn-nav { padding: 8px 14px; font-size: 13px; }
}

/* roulang page: article */
:root {
  --color-bg:#F6F7F2;
  --color-dark:#131513;
  --color-primary:#00C896;
  --color-primary-dark:#00A37A;
  --color-accent:#F4B740;
  --color-accent-soft:#FFF6E0;
  --color-text-primary:#1C1E1A;
  --color-text-body:#3A3D36;
  --color-text-muted:#7B8074;
  --color-border:#E4E6DD;
  --color-border-dark:rgba(255,255,255,0.12);
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-card:0 8px 30px rgba(20,25,18,0.06);
  --shadow-hover:0 14px 40px rgba(0,200,150,0.12);
  --container-width:1200px;
  --section-gap:96px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit;transition:color .25s ease,border-color .25s ease,background .25s ease}
button{cursor:pointer;border:none;background:none;font:inherit;color:inherit}
input{font:inherit}
body{
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  background:var(--color-bg);
  color:var(--color-text-body);
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
.container{max-width:var(--container-width);margin:0 auto;padding:0 24px}
.container-narrow{max-width:780px;margin:0 auto;padding:0 24px}


/* 顶部装饰线 */
.top-bar{
  height:16px;
  background:linear-gradient(90deg,var(--color-primary) 0%,var(--color-accent) 100%);
  position:fixed;
  top:0;left:0;right:0;
  z-index:110;
}


/* 导航 */
.site-header{
  position:fixed;
  top:calc(16px + 12px);
  left:0;right:0;
  z-index:100;
  padding:0 16px;
}
.nav-panel{
  max-width:var(--container-width);
  margin:0 auto;
  background:rgba(19,21,19,.96);
  border:1px solid var(--color-border-dark);
  border-radius:16px;
  display:flex;
  align-items:center;
  padding:12px 24px;
  box-shadow:0 8px 30px rgba(0,0,0,.35);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  position:relative;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-right:36px;
  flex-shrink:0;
}
.brand-dot{
  width:12px;height:12px;
  background:var(--color-primary);
  border-radius:50%;
  box-shadow:0 0 12px rgba(0,200,150,.7);
}
.brand-text{
  font-size:22px;
  font-weight:800;
  color:#fff;
  letter-spacing:1px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:8px;
  flex:1;
}
.nav-link{
  display:flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:10px;
  font-size:14px;
  font-weight:600;
  color:rgba(255,255,255,.75);
  transition:all .25s ease;
}
.nav-link:hover{
  color:#fff;
  background:rgba(255,255,255,.08);
}
.nav-link.active{
  background:var(--color-primary);
  color:#131513;
  box-shadow:0 0 16px rgba(0,200,150,.3);
}
.nav-link i{font-size:14px}
.btn-nav{
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:var(--color-accent);
  color:#131513;
  padding:9px 20px;
  border-radius:10px;
  font-size:14px;
  font-weight:700;
  transition:background .25s ease,transform .15s ease;
  white-space:nowrap;
  margin-left:12px;
}
.btn-nav:hover{
  background:#e0a532;
  transform:translateY(-1px);
}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  border-radius:10px;
  background:rgba(255,255,255,.08);
  color:#fff;
  align-items:center;
  justify-content:center;
  margin-left:12px;
}
.nav-toggle:hover{background:rgba(255,255,255,.16)}
.nav-toggle:focus-visible,.btn-nav:focus-visible,.btn-primary:focus-visible,.btn-secondary:focus-visible{
  outline:2px solid var(--color-primary);
  outline-offset:2px;
}


/* 面包屑 */
.breadcrumb{
  padding:120px 0 16px;
  font-size:13px;
  color:var(--color-text-muted);
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
}
.breadcrumb a{color:var(--color-text-muted)}
.breadcrumb a:hover{color:var(--color-primary)}
.breadcrumb .sep{color:#c0c4b8}
.breadcrumb .current{
  color:var(--color-text-body);
  font-weight:600;
  max-width:240px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}


/* 文章卡片 */
.article-card{
  background:#fff;
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  padding:48px 52px;
  margin-bottom:64px;
  border:1px solid var(--color-border);
}
.article-header{
  margin-bottom:28px;
}
.article-header h1{
  font-size:34px;
  line-height:1.3;
  font-weight:800;
  color:var(--color-text-primary);
  letter-spacing:-.02em;
  margin-bottom:18px;
}
.article-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:24px;
  font-size:14px;
  color:var(--color-text-muted);
}
.article-meta i{
  color:var(--color-primary);
  margin-right:6px;
  font-size:13px;
}
.article-meta .meta-source{
  display:inline-flex;
  align-items:center;
}
.article-meta .meta-cat{
  display:inline-flex;
  align-items:center;
  background:var(--color-accent-soft);
  color:#8a6d1e;
  padding:2px 12px;
  border-radius:var(--radius-pill);
  font-size:12px;
  font-weight:600;
}
.article-cover{
  margin-bottom:36px;
  border-radius:12px;
  overflow:hidden;
  border:1px solid var(--color-border);
}
.article-cover img{
  width:100%;
  max-height:480px;
  object-fit:cover;
}

/* 正文阅读区 */
.article-content{
  max-width:680px;
  margin:0 auto;
  font-size:17px;
  line-height:1.85;
  color:var(--color-text-body);
}
.article-content h2{
  font-size:24px;
  font-weight:700;
  color:var(--color-text-primary);
  margin-top:40px;
  margin-bottom:16px;
  line-height:1.4;
}
.article-content h3{
  font-size:20px;
  font-weight:700;
  color:var(--color-text-primary);
  margin-top:28px;
  margin-bottom:12px;
}
.article-content p{
  margin-bottom:24px;
}
.article-content blockquote{
  border-left:4px solid var(--color-primary);
  background:var(--color-accent-soft);
  padding:18px 22px;
  border-radius:0 10px 10px 0;
  margin:28px 0;
  color:var(--color-text-body);
  font-style:normal;
}
.article-content ul,.article-content ol{
  padding-left:26px;
  margin-bottom:24px;
}
.article-content li{
  margin-bottom:10px;
  line-height:1.75;
}
.article-content li::marker{
  color:var(--color-primary);
  font-weight:700;
}
.article-content img{
  border-radius:12px;
  border:1px solid var(--color-border);
  margin-bottom:24px;
  width:100%;
}
.article-content code{
  background:var(--color-dark);
  color:var(--color-primary);
  padding:2px 8px;
  border-radius:6px;
  font-family:ui-monospace,"SF Mono","Cascadia Code","Roboto Mono",monospace;
  font-size:14px;
}
.article-content pre{
  background:var(--color-dark);
  color:#e8eae4;
  padding:22px;
  border-radius:12px;
  margin:24px 0;
  overflow-x:auto;
  font-family:ui-monospace,"SF Mono","Cascadia Code","Roboto Mono",monospace;
  font-size:14px;
  line-height:1.7;
}
.article-content a{
  color:var(--color-primary-dark);
  border-bottom:1px solid rgba(0,163,122,.3);
}
.article-content a:hover{
  color:var(--color-primary);
  border-bottom-color:var(--color-primary);
}

/* 相关推荐 */
.related-section{
  padding:64px 0 40px;
}
.related-section .section-head{
  margin-bottom:32px;
  display:flex;
  align-items:center;
  gap:16px;
}
.related-section .section-head::after{
  content:"";
  flex:1;
  height:1px;
  background:var(--color-border);
}
.related-section .section-head h2{
  font-size:26px;
  font-weight:800;
  color:var(--color-text-primary);
  white-space:nowrap;
}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.related-card{
  background:#fff;
  border:1px solid var(--color-border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:box-shadow .3s ease,transform .3s ease,border-color .3s ease;
  display:block;
  height:100%;
}
.related-card:hover{
  box-shadow:var(--shadow-hover);
  border-color:var(--color-primary);
  transform:translateY(-4px);
}
.related-card img{
  width:100%;
  height:160px;
  object-fit:cover;
  border-bottom:1px solid var(--color-border);
}
.related-body{
  padding:18px 20px 20px;
}
.related-body h3{
  font-size:16px;
  font-weight:700;
  color:var(--color-text-primary);
  line-height:1.45;
  margin-bottom:8px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.related-card:hover .related-body h3{
  color:var(--color-primary-dark);
}
.related-body span{
  font-size:13px;
  color:var(--color-text-muted);
  font-family:ui-monospace,"SF Mono","Cascadia Code","Roboto Mono",monospace;
}

/* 返回入口 */
.back-entry{
  padding:24px 0 64px;
  text-align:center;
}
.btn-secondary{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:transparent;
  border:1.5px solid var(--color-primary);
  color:var(--color-primary-dark);
  font-size:14px;
  font-weight:700;
  padding:11px 26px;
  border-radius:12px;
  transition:background .25s ease,color .25s ease,transform .15s ease;
}
.btn-secondary:hover{
  background:var(--color-accent-soft);
  color:var(--color-primary-dark);
  transform:translateY(-1px);
}
.btn-secondary:active{
  transform:translateY(0);
}
.btn-secondary:focus-visible{
  outline:2px solid var(--color-primary);
  outline-offset:2px;
}

/* 未找到 */
.not-found{
  background:#fff;
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  padding:80px 40px;
  text-align:center;
  border:1px solid var(--color-border);
  margin-bottom:64px;
}
.not-found h2{
  font-size:28px;
  color:var(--color-text-primary);
  margin-bottom:12px;
}
.not-found p{
  color:var(--color-text-muted);
  margin-bottom:28px;
}
.not-found .btn-primary{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:var(--color-primary);
  color:#131513;
  padding:12px 30px;
  border-radius:12px;
  font-size:15px;
  font-weight:700;
  transition:background .25s ease,transform .15s ease;
}
.not-found .btn-primary:hover{
  background:var(--color-primary-dark);
  transform:translateY(-1px);
}

/* CTA区 */
.cta-section{
  background:var(--color-dark);
  padding:80px 0;
  margin-top:0;
  position:relative;
  overflow:hidden;
}
.cta-section::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(135deg,rgba(0,200,150,.08) 0%,rgba(244,183,64,.05) 100%);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  max-width:720px;
  margin:0 auto;
  text-align:center;
  padding:0 24px;
}
.cta-title{
  font-size:32px;
  font-weight:800;
  color:#fff;
  margin-bottom:14px;
  line-height:1.3;
}
.cta-desc{
  font-size:15px;
  color:rgba(255,255,255,.6);
  margin-bottom:30px;
  line-height:1.7;
}
.cta-buttons{
  display:flex;
  justify-content:center;
  gap:14px;
  flex-wrap:wrap;
}
.cta-btn-primary{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:var(--color-primary);
  color:#131513;
  padding:13px 30px;
  border-radius:12px;
  font-size:15px;
  font-weight:700;
  transition:background .25s ease,transform .15s ease,box-shadow .25s ease;
  box-shadow:0 4px 20px rgba(0,200,150,.25);
}
.cta-btn-primary:hover{
  background:var(--color-accent);
  transform:translateY(-2px);
  box-shadow:0 8px 28px rgba(244,183,64,.25);
}
.cta-btn-ghost{
  display:inline-flex;
  align-items:center;
  gap:8px;
  border:1.5px solid rgba(255,255,255,.4);
  background:transparent;
  color:#fff;
  padding:13px 30px;
  border-radius:12px;
  font-size:15px;
  font-weight:600;
  transition:all .25s ease;
}
.cta-btn-ghost:hover{
  border-color:#fff;
  background:rgba(255,255,255,.1);
  transform:translateY(-2px);
}
.cta-btn-ghost:focus-visible,.cta-btn-primary:focus-visible{
  outline:2px solid var(--color-accent);
  outline-offset:2px;
}

/* Footer */
.site-footer{
  background:var(--color-dark);
  color:rgba(255,255,255,.65);
  padding:56px 0 0;
  border-top:1px solid var(--color-border-dark);
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr;
  gap:40px;
  padding-bottom:40px;
}
.footer-brand .brand{
  margin-right:0;
  margin-bottom:14px;
}
.footer-brand .brand-text{
  color:#fff;
}
.footer-brand p{
  font-size:13px;
  line-height:1.7;
  color:rgba(255,255,255,.55);
  max-width:360px;
}
.footer-col h5{
  font-size:14px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
  letter-spacing:1px;
}
.footer-col ul{
  list-style:none;
  padding:0;
}
.footer-col ul li{
  margin-bottom:10px;
}
.footer-col ul a{
  font-size:13px;
  color:rgba(255,255,255,.55);
  transition:color .25s ease;
}
.footer-col ul a:hover{
  color:var(--color-primary);
}
.footer-bottom{
  border-top:1px solid var(--color-border-dark);
  padding:20px 0;
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-size:12px;
  color:rgba(255,255,255,.4);
  flex-wrap:wrap;
  gap:8px;
}
.footer-bottom a{
  color:rgba(255,255,255,.4);
  transition:color .25s ease;
}
.footer-bottom a:hover{
  color:var(--color-primary);
}

/* 响应式 */
@media (max-width:1024px){
  .nav-links{gap:4px}
  .nav-link{padding:7px 12px;font-size:13px}
  .brand{margin-right:20px}
  .article-header h1{font-size:30px}
  .article-card{padding:36px 32px}
  .related-grid{grid-template-columns:repeat(3,1fr);gap:16px}
}
@media (max-width:768px){
  .container,.container-narrow{padding:0 16px}
  .nav-links{
    position:absolute;
    top:calc(100% + 8px);
    left:0;right:0;
    background:rgba(19,21,19,.98);
    border-radius:12px;
    padding:16px;
    flex-direction:column;
    gap:4px;
    display:none;
    border:1px solid var(--color-border-dark);
  }
  .nav-links.open{display:flex}
  .nav-link{
    padding:12px 16px;
    font-size:15px;
    width:100%;
  }
  .nav-toggle{display:flex}
  .btn-nav{margin-left:auto}
  .brand{margin-right:12px}
  .brand-text{font-size:18px}
  .article-card{padding:28px 20px;margin-bottom:48px}
  .article-header h1{font-size:26px}
  .article-meta{gap:14px;flex-wrap:wrap}
  .article-cover{margin-bottom:24px}
  .related-grid{grid-template-columns:1fr;gap:16px}
  .related-card img{height:180px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1/-1}
  .cta-title{font-size:26px}
  .cta-buttons{flex-direction:column;align-items:center}
  .breadcrumb{padding-top:100px}
}
@media (max-width:640px){
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;text-align:center}
  .nav-panel{padding:10px 16px}
  .brand-text{font-size:16px}
  .btn-nav{padding:8px 14px;font-size:13px}
  .article-card{padding:24px 16px}
  .article-header h1{font-size:23px}
  .article-content{font-size:16px}
  .breadcrumb{font-size:12px}
  .related-section .section-head h2{font-size:22px}
}
@media (max-width:480px){
  .btn-nav{display:none}
  .nav-toggle{margin-left:auto}
}

/* roulang page: category1 */
:root {
        --color-bg: #F6F7F2;
        --color-dark: #131513;
        --color-primary: #00C896;
        --color-primary-dark: #00A37A;
        --color-accent: #F4B740;
        --color-accent-soft: #FFF6E0;
        --color-text-primary: #1C1E1A;
        --color-text-body: #3A3D36;
        --color-text-muted: #7B8074;
        --color-border: #E4E6DD;
        --color-border-dark: rgba(255, 255, 255, 0.12);
        --color-danger: #E5484D;
        --radius-lg: 16px;
        --radius-md: 12px;
        --radius-sm: 10px;
        --shadow-card: 0 8px 30px rgba(20, 25, 18, 0.06);
        --shadow-card-hover: 0 14px 40px rgba(0, 200, 150, 0.12);
        --shadow-dark: 0 12px 40px rgba(0, 0, 0, 0.35);
        --gap-section: 96px;
        --gap-section-mobile: 56px;
        --container-max: 1200px;
        --font-sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
        --font-mono: ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", monospace;
    }
    *,
    *::before,
    *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        font-family: var(--font-sans);
        background: var(--color-bg);
        color: var(--color-text-body);
        line-height: 1.7;
        -webkit-font-smoothing: antialiased;
    }
    img {
        max-width: 100%;
        display: block;
    }
    a {
        color: inherit;
        text-decoration: none;
    }
    button {
        font-family: inherit;
        cursor: pointer;
        border: none;
        background: none;
    }
    input {
        font-family: inherit;
    }
    .container {
        max-width: var(--container-max);
        margin: 0 auto;
        padding-left: 24px;
        padding-right: 24px;
    }
    @media (max-width: 640px) {
        .container {
            padding-left: 16px;
            padding-right: 16px;
        }
    }
    .btn-primary {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        height: 46px;
        padding: 0 28px;
        border-radius: var(--radius-md);
        background: var(--color-primary);
        color: #fff;
        font-size: 15px;
        font-weight: 600;
        transition: all .25s ease;
        box-shadow: 0 2px 10px rgba(0, 200, 150, 0.25);
    }
    .btn-primary:hover {
        background: var(--color-primary-dark);
        transform: translateY(-2px);
        box-shadow: 0 8px 24px rgba(0, 163, 122, 0.28);
    }
    .btn-primary:active {
        transform: translateY(0);
        box-shadow: 0 2px 8px rgba(0, 200, 150, 0.2);
    }
    .btn-primary:focus-visible {
        outline: 3px solid rgba(0, 200, 150, 0.45);
        outline-offset: 2px;
    }
    .btn-secondary {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        height: 46px;
        padding: 0 28px;
        border-radius: var(--radius-md);
        border: 1.5px solid var(--color-primary);
        color: var(--color-primary-dark);
        background: transparent;
        font-size: 15px;
        font-weight: 600;
        transition: all .25s ease;
    }
    .btn-secondary:hover {
        background: rgba(0, 200, 150, 0.08);
        box-shadow: 0 4px 16px rgba(0, 200, 150, 0.12);
    }
    .btn-secondary:active {
        background: rgba(0, 200, 150, 0.16);
    }
    .btn-secondary:focus-visible {
        outline: 3px solid rgba(0, 200, 150, 0.35);
        outline-offset: 2px;
    }
    .btn-light {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        height: 46px;
        padding: 0 28px;
        border-radius: var(--radius-md);
        background: var(--color-primary);
        color: #131513;
        font-size: 15px;
        font-weight: 700;
        transition: all .25s ease;
        box-shadow: 0 2px 12px rgba(0, 200, 150, 0.35);
    }
    .btn-light:hover {
        background: #eafff7;
        transform: translateY(-2px);
        box-shadow: 0 8px 24px rgba(0, 200, 150, 0.25);
    }
    .btn-outline-light {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        height: 46px;
        padding: 0 28px;
        border-radius: var(--radius-md);
        border: 1.5px solid rgba(255, 255, 255, 0.7);
        color: #fff;
        font-size: 15px;
        font-weight: 500;
        transition: all .25s ease;
        background: transparent;
    }
    .btn-outline-light:hover {
        background: rgba(255, 255, 255, 0.12);
        border-color: #fff;
    }
    .btn-outline-light:focus-visible {
        outline: 3px solid rgba(255, 255, 255, 0.4);
        outline-offset: 2px;
    }
    .badge {
        display: inline-flex;
        align-items: center;
        height: 24px;
        padding: 0 12px;
        border-radius: 999px;
        background: var(--color-accent-soft);
        color: #C28A00;
        font-size: 12px;
        font-weight: 600;
        letter-spacing: 0.02em;
    }
    .badge-light {
        background: rgba(244, 183, 64, 0.18);
        color: var(--color-accent);
    }
    /* ===== 导航 ===== */
    .site-header {
        position: fixed;
        top: 12px;
        left: 0;
        right: 0;
        z-index: 100;
        padding: 0 24px;
    }
    .nav-panel {
        max-width: var(--container-max);
        margin: 0 auto;
        background: rgba(19, 21, 19, 0.92);
        backdrop-filter: blur(10px);
        border-radius: var(--radius-lg);
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
        display: flex;
        align-items: center;
        gap: 20px;
        padding: 10px 20px;
        border: 1px solid var(--color-border-dark);
    }
    .brand {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        flex-shrink: 0;
    }
    .brand-dot {
        width: 30px;
        height: 30px;
        border-radius: 9px;
        background: linear-gradient(135deg, var(--color-primary), #00a37a);
        box-shadow: 0 0 18px rgba(0, 200, 150, 0.5);
        display: inline-block;
        position: relative;
    }
    .brand-dot::after {
        content: '';
        position: absolute;
        inset: 8px;
        border-radius: 4px;
        background: rgba(19, 21, 19, 0.75);
    }
    .brand-text {
        color: #fff;
        font-size: 20px;
        font-weight: 700;
        letter-spacing: 0.06em;
        line-height: 1;
    }
    .nav-links {
        display: flex;
        align-items: center;
        gap: 8px;
        flex: 1;
        justify-content: center;
    }
    .nav-link {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 8px 16px;
        border-radius: var(--radius-sm);
        color: rgba(255, 255, 255, 0.75);
        font-size: 14px;
        font-weight: 500;
        transition: all .25s ease;
        border: 1px solid transparent;
    }
    .nav-link:hover {
        color: #fff;
        background: rgba(255, 255, 255, 0.06);
    }
    .nav-link.active {
        color: #131513;
        background: var(--color-primary);
        font-weight: 600;
        box-shadow: 0 2px 12px rgba(0, 200, 150, 0.4);
    }
    .nav-link:focus-visible {
        outline: 2px solid var(--color-primary);
        outline-offset: 2px;
    }
    .btn-nav {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        height: 38px;
        padding: 0 18px;
        border-radius: var(--radius-sm);
        background: rgba(255, 255, 255, 0.08);
        color: #fff;
        font-size: 14px;
        font-weight: 600;
        transition: all .25s ease;
        flex-shrink: 0;
        border: 1px solid rgba(255, 255, 255, 0.12);
    }
    .btn-nav:hover {
        background: var(--color-primary);
        color: #131513;
        border-color: transparent;
        box-shadow: 0 4px 18px rgba(0, 200, 150, 0.35);
    }
    .nav-toggle {
        display: none;
        width: 40px;
        height: 40px;
        border-radius: var(--radius-sm);
        align-items: center;
        justify-content: center;
        color: #fff;
        background: rgba(255, 255, 255, 0.08);
        transition: background .25s;
        flex-shrink: 0;
    }
    .nav-toggle:hover {
        background: rgba(255, 255, 255, 0.16);
    }
    @media (max-width: 768px) {
        .site-header {
            padding: 0 12px;
            top: 8px;
        }
        .nav-panel {
            padding: 8px 14px;
            gap: 10px;
        }
        .brand-text {
            font-size: 18px;
        }
        .btn-nav {
            display: none;
        }
        .nav-toggle {
            display: inline-flex;
        }
        .nav-links {
            position: absolute;
            top: calc(100% + 8px);
            left: 12px;
            right: 12px;
            background: rgba(19, 21, 19, 0.97);
            border-radius: var(--radius-lg);
            padding: 16px;
            flex-direction: column;
            align-items: stretch;
            gap: 8px;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
            border: 1px solid var(--color-border-dark);
            opacity: 0;
            visibility: hidden;
            transform: translateY(-8px);
            transition: all .3s ease;
            z-index: 99;
        }
        .nav-links.open {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .nav-link {
            padding: 14px 18px;
            border-radius: var(--radius-md);
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
        }
        .nav-link.active {
            background: rgba(0, 200, 150, 0.18);
            color: var(--color-primary);
            box-shadow: none;
        }
    }
    @media (max-width: 480px) {
        .nav-panel {
            padding: 8px 10px;
        }
        .brand-dot {
            width: 26px;
            height: 26px;
        }
        .brand-text {
            font-size: 17px;
        }
    }
    /* ===== 面包屑 ===== */
    .breadcrumb {
        padding: 24px 0 8px;
        font-size: 13px;
        color: var(--color-text-muted);
    }
    .breadcrumb a {
        color: var(--color-text-muted);
        transition: color .2s;
    }
    .breadcrumb a:hover {
        color: var(--color-primary-dark);
    }
    .breadcrumb .sep {
        margin: 0 8px;
        color: #c3c7bc;
    }
    .breadcrumb .current {
        color: var(--color-text-body);
        font-weight: 500;
    }
    /* ===== 分类Hero ===== */
    .category-hero {
        position: relative;
        min-height: 360px;
        display: flex;
        align-items: center;
        background-image: url('/assets/images/backpic/back-1.webp');
        background-size: cover;
        background-position: center;
        padding-top: 100px;
        padding-bottom: 48px;
    }
    .category-hero::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(to right, rgba(13, 15, 13, 0.92) 0%, rgba(13, 15, 13, 0.78) 45%, rgba(13, 15, 13, 0.55) 100%);
    }
    .category-hero::after {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(to top, rgba(19, 21, 19, 0.7), transparent 50%);
    }
    .category-hero .container {
        position: relative;
        z-index: 2;
    }
    .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 6px 14px;
        border-radius: 999px;
        background: rgba(0, 200, 150, 0.18);
        border: 1px solid rgba(0, 200, 150, 0.3);
        color: var(--color-primary);
        font-size: 13px;
        font-weight: 600;
        margin-bottom: 20px;
        letter-spacing: 0.03em;
    }
    .category-hero h1 {
        font-size: 48px;
        font-weight: 800;
        color: #fff;
        line-height: 1.2;
        margin-bottom: 16px;
        letter-spacing: 0.02em;
    }
    .category-hero p {
        font-size: 17px;
        color: rgba(255, 255, 255, 0.75);
        max-width: 520px;
        line-height: 1.7;
    }
    .hero-meta {
        display: flex;
        gap: 24px;
        margin-top: 28px;
        padding-top: 20px;
        border-top: 1px solid var(--color-border-dark);
    }
    .hero-meta span {
        font-family: var(--font-mono);
        font-size: 14px;
        color: rgba(255, 255, 255, 0.55);
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }
    .hero-meta i {
        width: 6px;
        height: 6px;
        border-radius: 50%;
        background: var(--color-accent);
        display: inline-block;
    }
    @media (max-width: 640px) {
        .category-hero {
            min-height: 300px;
            padding-top: 80px;
            padding-bottom: 32px;
        }
        .category-hero h1 {
            font-size: 34px;
        }
        .category-hero p {
            font-size: 15px;
        }
        .hero-meta {
            flex-wrap: wrap;
            gap: 12px;
        }
    }
    /* ===== 分类描述 ===== */
    .category-desc {
        padding: 64px 0 32px;
    }
    .desc-grid {
        display: grid;
        grid-template-columns: 1fr 260px;
        gap: 48px;
        align-items: center;
    }
    .desc-text h2 {
        font-size: 28px;
        font-weight: 700;
        color: var(--color-text-primary);
        margin-bottom: 16px;
        line-height: 1.3;
    }
    .desc-text p {
        font-size: 16px;
        line-height: 1.8;
        color: var(--color-text-body);
    }
    .desc-stats {
        display: flex;
        flex-direction: column;
        gap: 16px;
    }
    .stat-card {
        background: #fff;
        border: 1px solid var(--color-border);
        border-radius: var(--radius-md);
        padding: 20px;
        box-shadow: var(--shadow-card);
    }
    .stat-card .num {
        font-family: var(--font-mono);
        font-size: 28px;
        font-weight: 700;
        color: var(--color-primary-dark);
        line-height: 1;
    }
    .stat-card .label {
        display: block;
        font-size: 13px;
        color: var(--color-text-muted);
        margin-top: 6px;
    }
    @media (max-width: 768px) {
        .desc-grid {
            grid-template-columns: 1fr;
            gap: 32px;
        }
        .desc-stats {
            flex-direction: row;
            flex-wrap: wrap;
        }
        .stat-card {
            flex: 1;
            min-width: 120px;
        }
    }
    @media (max-width: 480px) {
        .category-desc {
            padding: 48px 0 24px;
        }
        .desc-text h2 {
            font-size: 24px;
        }
    }
    /* ===== 内容卡片区 ===== */
    .content-cards {
        padding: 56px 0 80px;
    }
    .section-head {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        gap: 24px;
        margin-bottom: 40px;
    }
    .section-head h2 {
        font-size: 32px;
        font-weight: 800;
        color: var(--color-text-primary);
        line-height: 1.2;
        position: relative;
        padding-left: 16px;
    }
    .section-head h2::before {
        content: '';
        position: absolute;
        left: 0;
        top: 4px;
        bottom: 4px;
        width: 4px;
        border-radius: 2px;
        background: var(--color-primary);
    }
    .section-head p {
        font-size: 14px;
        color: var(--color-text-muted);
        max-width: 320px;
        text-align: right;
        line-height: 1.6;
    }
    .cards-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 28px;
    }
    .news-card {
        background: #fff;
        border-radius: var(--radius-lg);
        overflow: hidden;
        border: 1px solid var(--color-border);
        box-shadow: var(--shadow-card);
        transition: all .35s ease;
        display: flex;
        flex-direction: column;
    }
    .news-card:hover {
        box-shadow: var(--shadow-card-hover);
        border-color: rgba(0, 200, 150, 0.5);
        transform: translateY(-4px);
    }
    .news-card .card-media {
        position: relative;
        overflow: hidden;
        aspect-ratio: 16 / 9;
        background: #e8ebe3;
    }
    .news-card .card-media img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform .5s ease;
    }
    .news-card:hover .card-media img {
        transform: scale(1.03);
    }
    .card-media .card-tag {
        position: absolute;
        left: 14px;
        top: 14px;
        z-index: 2;
        display: inline-flex;
        align-items: center;
        height: 26px;
        padding: 0 12px;
        border-radius: 999px;
        background: rgba(19, 21, 19, 0.75);
        color: var(--color-accent);
        font-size: 12px;
        font-weight: 600;
        backdrop-filter: blur(6px);
        border: 1px solid rgba(255, 255, 255, 0.15);
    }
    .card-body {
        padding: 24px;
        display: flex;
        flex-direction: column;
        flex: 1;
    }
    .card-body h3 {
        font-size: 18px;
        font-weight: 700;
        color: var(--color-text-primary);
        line-height: 1.4;
        margin-bottom: 10px;
        transition: color .25s;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .news-card:hover .card-body h3 {
        color: var(--color-primary-dark);
    }
    .card-body p {
        font-size: 14px;
        color: var(--color-text-muted);
        line-height: 1.65;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        margin-bottom: 16px;
        flex: 1;
    }
    .card-meta {
        display: flex;
        align-items: center;
        gap: 12px;
        padding-top: 14px;
        border-top: 1px solid var(--color-border);
        font-size: 13px;
        color: var(--color-text-muted);
    }
    .card-meta .time {
        font-family: var(--font-mono);
        color: var(--color-text-muted);
    }
    .card-meta .dot {
        width: 3px;
        height: 3px;
        border-radius: 50%;
        background: #c3c7bc;
    }
    .card-meta .cat {
        color: var(--color-primary-dark);
        font-weight: 500;
        font-size: 12px;
    }
    @media (max-width: 768px) {
        .cards-grid {
            grid-template-columns: 1fr;
            gap: 20px;
        }
        .section-head {
            flex-direction: column;
            align-items: flex-start;
            gap: 8px;
        }
        .section-head p {
            text-align: left;
        }
    }
    @media (max-width: 640px) {
        .content-cards {
            padding: 40px 0 56px;
        }
        .section-head h2 {
            font-size: 26px;
        }
        .card-body {
            padding: 18px;
        }
    }
    /* ===== 特色模块 ===== */
    .features {
        background: var(--color-dark);
        padding: 96px 0;
        position: relative;
        overflow: hidden;
    }
    .features::before {
        content: '';
        position: absolute;
        top: -120px;
        right: -120px;
        width: 360px;
        height: 360px;
        border-radius: 50%;
        background: radial-gradient(circle, rgba(0, 200, 150, 0.12), transparent 70%);
    }
    .features-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 72px;
        align-items: center;
        position: relative;
        z-index: 1;
    }
    .features-media {
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow-dark);
        position: relative;
        aspect-ratio: 4 / 3;
    }
    .features-media img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    .features-media::after {
        content: '';
        position: absolute;
        inset: 0;
        border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: var(--radius-lg);
    }
    .features-list h2 {
        font-size: 30px;
        font-weight: 800;
        color: #fff;
        margin-bottom: 12px;
        line-height: 1.3;
    }
    .features-list>p {
        color: rgba(255, 255, 255, 0.55);
        font-size: 15px;
        margin-bottom: 36px;
        line-height: 1.7;
    }
    .feature-item {
        display: flex;
        gap: 18px;
        padding: 20px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    }
    .feature-item:last-child {
        border-bottom: none;
    }
    .feature-icon {
        width: 44px;
        height: 44px;
        border-radius: 12px;
        background: rgba(0, 200, 150, 0.12);
        border: 1px solid rgba(0, 200, 150, 0.25);
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
        color: var(--color-primary);
        font-size: 18px;
    }
    .feature-item h4 {
        color: #fff;
        font-size: 17px;
        font-weight: 600;
        margin-bottom: 6px;
    }
    .feature-item p {
        color: rgba(255, 255, 255, 0.6);
        font-size: 14px;
        line-height: 1.65;
    }
    @media (max-width: 992px) {
        .features-grid {
            grid-template-columns: 1fr;
            gap: 40px;
        }
    }
    @media (max-width: 640px) {
        .features {
            padding: 56px 0;
        }
        .features-list h2 {
            font-size: 26px;
        }
    }
    /* ===== 子主题模块 ===== */
    .topic-module {
        padding: 80px 0 40px;
    }
    .topic-scroll {
        display: flex;
        gap: 20px;
        overflow-x: auto;
        padding-bottom: 16px;
        -webkit-overflow-scrolling: touch;
        scroll-snap-type: x mandatory;
    }
    .topic-scroll::-webkit-scrollbar {
        height: 6px;
    }
    .topic-scroll::-webkit-scrollbar-track {
        background: #edf0e9;
        border-radius: 10px;
    }
    .topic-scroll::-webkit-scrollbar-thumb {
        background: var(--color-primary);
        border-radius: 10px;
    }
    .topic-card {
        min-width: 260px;
        background: #fff;
        border: 1px solid var(--color-border);
        border-radius: var(--radius-lg);
        padding: 28px;
        scroll-snap-align: start;
        transition: all .3s ease;
        box-shadow: var(--shadow-card);
        position: relative;
        overflow: hidden;
    }
    .topic-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 3px;
        background: var(--color-primary);
        opacity: 0;
        transition: opacity .3s;
    }
    .topic-card:hover {
        box-shadow: var(--shadow-card-hover);
        transform: translateY(-4px);
    }
    .topic-card:hover::before {
        opacity: 1;
    }
    .topic-card .topic-icon {
        width: 48px;
        height: 48px;
        border-radius: 12px;
        background: var(--color-accent-soft);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 20px;
        color: #C28A00;
        margin-bottom: 18px;
    }
    .topic-card h4 {
        font-size: 17px;
        font-weight: 700;
        color: var(--color-text-primary);
        margin-bottom: 8px;
    }
    .topic-card p {
        font-size: 14px;
        color: var(--color-text-muted);
        line-height: 1.6;
    }
    @media (max-width: 640px) {
        .topic-module {
            padding: 48px 0 32px;
        }
        .topic-card {
            min-width: 200px;
            padding: 20px;
        }
    }
    /* ===== FAQ ===== */
    .faq-section {
        padding: 80px 0;
        background: #fff;
        border-top: 1px solid var(--color-border);
        border-bottom: 1px solid var(--color-border);
    }
    .faq-section .container {
        max-width: 860px;
    }
    .faq-title {
        text-align: center;
        margin-bottom: 48px;
    }
    .faq-title h2 {
        font-size: 32px;
        font-weight: 800;
        color: var(--color-text-primary);
        position: relative;
        display: inline-block;
    }
    .faq-title p {
        font-size: 14px;
        color: var(--color-text-muted);
        margin-top: 8px;
    }
    .faq-list {
        display: flex;
        flex-direction: column;
        gap: 14px;
    }
    .faq-item {
        border: 1px solid var(--color-border);
        border-radius: var(--radius-md);
        background: var(--color-bg);
        overflow: hidden;
        transition: all .3s ease;
    }
    .faq-item.open {
        border-color: rgba(0, 200, 150, 0.5);
        box-shadow: 0 4px 20px rgba(0, 200, 150, 0.08);
    }
    .faq-q {
        width: 100%;
        text-align: left;
        padding: 20px 24px;
        font-size: 16px;
        font-weight: 600;
        color: var(--color-text-primary);
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        transition: color .25s;
    }
    .faq-q:hover {
        color: var(--color-primary-dark);
    }
    .faq-q .icon {
        font-size: 22px;
        line-height: 1;
        color: var(--color-primary);
        font-weight: 400;
        transition: transform .3s ease;
        font-family: var(--font-mono);
    }
    .faq-item.open .faq-q .icon {
        transform: rotate(45deg);
    }
    .faq-a {
        padding: 0 24px;
        max-height: 0;
        overflow: hidden;
        transition: all .4s ease;
        font-size: 15px;
        line-height: 1.75;
        color: var(--color-text-body);
        border-top: 0px solid transparent;
    }
    .faq-item.open .faq-a {
        padding: 0 24px 22px;
        max-height: 300px;
        border-top: 1px solid var(--color-border);
        padding-top: 18px;
        margin-top: 0;
    }
    .faq-a p {
        padding-top: 14px;
    }
    @media (max-width: 640px) {
        .faq-section {
            padding: 56px 0;
        }
        .faq-title h2 {
            font-size: 26px;
        }
        .faq-q {
            padding: 16px 18px;
            font-size: 15px;
            line-height: 1.5;
        }
        .faq-a {
            padding: 0 18px;
        }
        .faq-item.open .faq-a {
            padding: 0 18px 18px;
        }
        .faq-a p {
            font-size: 14px;
        }
    }
    /* ===== CTA ===== */
    .cta-section {
        position: relative;
        padding: 96px 0;
        background-image: url('/assets/images/backpic/back-2.png');
        background-size: cover;
        background-position: center;
        overflow: hidden;
    }
    .cta-section::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(120deg, rgba(19, 21, 19, 0.94) 0%, rgba(19, 21, 19, 0.82) 60%, rgba(19, 21, 19, 0.68) 100%);
    }
    .cta-section .container {
        position: relative;
        z-index: 2;
        text-align: center;
    }
    .cta-section h2 {
        font-size: 36px;
        font-weight: 800;
        color: #fff;
        line-height: 1.3;
        max-width: 640px;
        margin: 0 auto 16px;
    }
    .cta-section p {
        font-size: 15px;
        color: rgba(255, 255, 255, 0.65);
        max-width: 480px;
        margin: 0 auto 36px;
        line-height: 1.7;
    }
    .cta-buttons {
        display: flex;
        gap: 16px;
        justify-content: center;
        flex-wrap: wrap;
    }
    @media (max-width: 640px) {
        .cta-section {
            padding: 56px 0;
        }
        .cta-section h2 {
            font-size: 26px;
        }
        .cta-buttons {
            flex-direction: column;
            align-items: center;
        }
        .cta-buttons .btn-light,
        .cta-buttons .btn-outline-light {
            width: 100%;
            max-width: 280px;
        }
    }
    /* ===== 页脚 ===== */
    .site-footer {
        background: var(--color-dark);
        color: rgba(255, 255, 255, 0.6);
        padding: 64px 0 0;
        font-size: 14px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr 1fr 1fr;
        gap: 48px;
        padding-bottom: 48px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-brand .brand {
        margin-bottom: 16px;
    }
    .footer-brand p {
        line-height: 1.7;
        color: rgba(255, 255, 255, 0.5);
        max-width: 320px;
        font-size: 14px;
    }
    .footer-col h5 {
        color: #fff;
        font-size: 15px;
        font-weight: 600;
        margin-bottom: 20px;
        letter-spacing: 0.02em;
    }
    .footer-col ul {
        list-style: none;
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    .footer-col a {
        color: rgba(255, 255, 255, 0.5);
        transition: all .2s;
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }
    .footer-col a:hover {
        color: var(--color-primary);
    }
    .footer-bottom {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding: 20px 0 28px;
        flex-wrap: wrap;
        font-size: 13px;
        color: rgba(255, 255, 255, 0.35);
    }
    .footer-bottom a {
        color: rgba(255, 255, 255, 0.35);
        transition: color .2s;
        font-family: var(--font-mono);
        font-size: 12px;
    }
    .footer-bottom a:hover {
        color: var(--color-primary);
    }
    @media (max-width: 768px) {
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 32px;
            padding-bottom: 32px;
        }
    }
    @media (max-width: 640px) {
        .site-footer {
            padding-top: 48px;
        }
        .footer-bottom {
            flex-direction: column;
            text-align: center;
            padding-bottom: 24px;
        }
    }
    /* ===== 通用间距 ===== */
    .section-tagline {
        font-size: 14px;
        color: var(--color-text-muted);
        line-height: 1.6;
    }
    @media (max-width: 640px) {
        .section-tagline {
            font-size: 13px;
        }
    }

/* roulang page: category2 */
:root {
            --color-bg: #F6F7F2;
            --color-dark: #131513;
            --color-primary: #00C896;
            --color-primary-dark: #00A37A;
            --color-accent: #F4B740;
            --color-accent-soft: #FFF6E0;
            --color-text-primary: #1C1E1A;
            --color-text-body: #3A3D36;
            --color-text-muted: #7B8074;
            --color-border: #E4E6DD;
            --color-border-dark: rgba(255, 255, 255, 0.12);
            --font-sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --font-mono: ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", monospace;
            --radius-xl: 16px;
            --radius-lg: 12px;
            --shadow-card: 0 8px 30px rgba(20, 25, 18, 0.06);
            --shadow-dark: 0 12px 40px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 14px 40px rgba(0, 200, 150, 0.12);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            margin: 0;
            font-family: var(--font-sans);
            background: var(--color-bg);
            color: var(--color-text-body);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
        }

        button,
        input,
        select,
        textarea {
            font: inherit;
            border: none;
            background: none;
        }

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

        @media (max-width: 640px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ---------- Header & Nav ---------- */
        .site-header {
            position: fixed;
            top: 12px;
            left: 12px;
            right: 12px;
            z-index: 50;
        }

        .nav-panel {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: rgba(19, 21, 19, 0.94);
            border-radius: var(--radius-xl);
            padding: 12px 20px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--color-primary);
            box-shadow: 0 0 12px rgba(0, 200, 150, 0.7);
        }

        .brand-text {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.02em;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: center;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.85);
            background: transparent;
            border: 1px solid transparent;
            transition: all 0.2s ease;
        }

        .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.1);
        }

        .nav-link.active {
            color: #fff;
            background: var(--color-primary);
            border-color: var(--color-primary);
            font-weight: 600;
        }

        .nav-link.active:hover {
            background: var(--color-primary-dark);
        }

        .btn-nav {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--color-accent);
            color: var(--color-dark);
            font-size: 14px;
            font-weight: 600;
            padding: 8px 18px;
            border-radius: 999px;
            flex-shrink: 0;
            transition: all 0.2s ease;
        }

        .btn-nav:hover {
            background: #e6a63a;
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 4px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            color: #fff;
            transition: background 0.2s;
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        .nav-toggle:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        @media (max-width: 1024px) {
            .nav-links {
                display: none;
                position: fixed;
                top: calc(70px + 12px);
                left: 24px;
                right: 24px;
                flex-direction: column;
                align-items: stretch;
                background: var(--color-dark);
                border-radius: var(--radius-xl);
                padding: 12px;
                gap: 6px;
                border: 1px solid rgba(255, 255, 255, 0.12);
                box-shadow: 0 16px 50px rgba(0, 0, 0, 0.45);
                z-index: 49;
            }

            .nav-links.open {
                display: flex;
            }

            .nav-link {
                display: flex;
                width: 100%;
                border-radius: 12px;
                padding: 12px 16px;
                font-size: 15px;
                color: rgba(255, 255, 255, 0.9);
            }

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

            .nav-link.active {
                background: var(--color-primary);
                color: #fff;
            }

            .nav-toggle {
                display: flex;
            }

            .btn-nav {
                display: none;
            }
        }

        @media (max-width: 640px) {
            .nav-panel {
                padding: 10px 14px;
                gap: 10px;
            }

            .brand-text {
                font-size: 18px;
            }

            .nav-links {
                left: 16px;
                right: 16px;
            }
        }

        /* ---------- Category Hero ---------- */
        .cat-hero {
            position: relative;
            min-height: 360px;
            display: flex;
            align-items: center;
            padding-top: 120px;
            padding-bottom: 56px;
            overflow: hidden;
            background-color: var(--color-dark);
        }

        .cat-hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.4;
        }

        .cat-hero-veil {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(19, 21, 19, 0.9) 0%, rgba(19, 21, 19, 0.7) 50%, rgba(19, 21, 19, 0.85) 100%);
        }

        .cat-hero-inner {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .cat-kicker {
            display: inline-flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: var(--color-accent);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.1em;
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 18px;
            text-transform: uppercase;
        }

        .cat-hero h1 {
            font-size: 48px;
            line-height: 1.2;
            font-weight: 800;
            color: #fff;
            margin: 0 0 16px;
            letter-spacing: -0.01em;
        }

        .cat-hero p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 540px;
            line-height: 1.7;
            margin: 0;
        }

        @media (max-width: 768px) {
            .cat-hero {
                min-height: 300px;
                padding-top: 100px;
                padding-bottom: 40px;
            }

            .cat-hero h1 {
                font-size: 32px;
            }

            .cat-hero p {
                font-size: 15px;
            }
        }

        /* ---------- Breadcrumb ---------- */
        .breadcrumb-wrap {
            border-bottom: 1px solid var(--color-border);
            background: #fff;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-text-muted);
            padding: 14px 0;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--color-primary-dark);
            transition: color 0.2s;
        }

        .breadcrumb a:hover {
            color: var(--color-primary);
        }

        .breadcrumb .sep {
            color: #c0c4bb;
        }

        .breadcrumb .current {
            color: var(--color-text-body);
            font-weight: 500;
        }

        /* ---------- Intro Section ---------- */
        .section-block {
            padding: 80px 0;
        }

        @media (max-width: 768px) {
            .section-block {
                padding: 56px 0;
            }
        }

        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .intro-title {
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.16em;
            color: var(--color-accent);
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .intro-heading {
            font-size: 30px;
            line-height: 1.3;
            font-weight: 800;
            color: var(--color-text-primary);
            margin: 0 0 24px;
            letter-spacing: -0.02em;
        }

        .intro-text p {
            font-size: 16px;
            line-height: 1.85;
            color: var(--color-text-body);
            margin-bottom: 20px;
        }

        .intro-text p.lead {
            font-size: 18px;
            line-height: 1.7;
            color: var(--color-text-primary);
            font-weight: 500;
        }

        .intro-figure {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-dark);
        }

        .intro-figure img {
            width: 100%;
            height: 340px;
            object-fit: cover;
        }

        .intro-figure-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--color-accent);
            color: var(--color-dark);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 999px;
        }

        @media (max-width: 1024px) {
            .intro-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .intro-figure img {
                height: 260px;
            }
        }

        /* ---------- Feature Stack ---------- */
        .feature-section {
            background: #fff;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .feature-layout {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 40px;
        }

        .feature-main {
            background: var(--color-dark);
            border-radius: var(--radius-xl);
            padding: 36px;
            color: #fff;
            display: flex;
            flex-direction: column;
            justify-content: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-dark);
        }

        .feature-main::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--color-primary);
        }

        .feature-main-icon {
            width: 48px;
            height: 48px;
            background: rgba(0, 200, 150, 0.15);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            margin-bottom: 24px;
            font-size: 22px;
        }

        .feature-main h3 {
            font-size: 22px;
            font-weight: 700;
            margin: 0 0 12px;
            color: #fff;
        }

        .feature-main p {
            font-size: 15px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.75);
            margin: 0;
        }

        .feature-stack {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .feature-item {
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-xl);
            padding: 24px 28px;
            display: flex;
            gap: 20px;
            align-items: flex-start;
            transition: all 0.25s ease;
        }

        .feature-item:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .feature-item-icon {
            width: 40px;
            height: 40px;
            background: var(--color-accent-soft);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 18px;
            flex-shrink: 0;
        }

        .feature-item h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--color-text-primary);
            margin: 0 0 6px;
        }

        .feature-item p {
            font-size: 14px;
            line-height: 1.6;
            color: var(--color-text-muted);
            margin: 0;
        }

        @media (max-width: 1024px) {
            .feature-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 640px) {
            .feature-main {
                padding: 24px;
            }

            .feature-item {
                padding: 18px 16px;
                gap: 14px;
            }
        }

        /* ---------- Process Section ---------- */
        .process-section {
            background: var(--color-dark);
            color: #fff;
        }

        .process-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 48px;
        }

        .process-head .intro-title {
            color: var(--color-accent);
        }

        .process-head h2 {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            margin: 0 0 14px;
        }

        .process-head p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .process-step {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-xl);
            padding: 28px 24px;
            position: relative;
            transition: border-color 0.3s, transform 0.3s;
        }

        .process-step:hover {
            border-color: rgba(0, 200, 150, 0.5);
            transform: translateY(-4px);
        }

        .process-step-num {
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--color-accent);
            letter-spacing: 0.08em;
            margin-bottom: 12px;
        }

        .process-step h4 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 8px;
        }

        .process-step p {
            font-size: 14px;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.6);
            margin: 0;
        }

        @media (max-width: 1024px) {
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .process-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        /* ---------- Content Cards ---------- */
        .cards-section {
            background: var(--color-bg);
        }

        .cards-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }

        .cards-head .intro-title {
            margin-bottom: 8px;
        }

        .cards-head h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--color-text-primary);
            margin: 0;
            letter-spacing: -0.02em;
        }

        .cards-meta {
            font-size: 13px;
            color: var(--color-text-muted);
            font-family: var(--font-mono);
        }

        .content-cards-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }

        .content-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .content-card:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .card-media {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--color-border);
        }

        .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .content-card:hover .card-media img {
            transform: scale(1.04);
        }

        .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(19, 21, 19, 0.8);
            color: var(--color-accent);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            backdrop-filter: blur(4px);
        }

        .card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .card-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text-primary);
            margin: 0 0 10px;
            line-height: 1.35;
            transition: color 0.2s;
        }

        .content-card:hover .card-body h3 {
            color: var(--color-primary-dark);
        }

        .card-body p {
            font-size: 14px;
            line-height: 1.65;
            color: var(--color-text-muted);
            margin: 0 0 20px;
            flex: 1;
        }

        .card-foot {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--color-border);
            padding-top: 14px;
            font-size: 13px;
            color: var(--color-text-muted);
        }

        .card-foot .date {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--color-text-muted);
        }

        .card-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-primary-dark);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap 0.2s, color 0.2s;
        }

        .card-link:hover {
            color: var(--color-primary);
            gap: 8px;
        }

        @media (max-width: 768px) {
            .content-cards-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .cards-head h2 {
                font-size: 26px;
            }
        }

        /* ---------- FAQ ---------- */
        .faq-section {
            background: #fff;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .faq-grid {
            display: grid;
            grid-template-columns: 0.8fr 1.2fr;
            gap: 56px;
        }

        .faq-grid .intro-title {
            margin-bottom: 8px;
        }

        .faq-grid h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--color-text-primary);
            margin: 0 0 16px;
            letter-spacing: -0.02em;
        }

        .faq-grid .faq-desc {
            font-size: 15px;
            line-height: 1.7;
            color: var(--color-text-muted);
            margin: 0;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            background: var(--color-bg);
            overflow: hidden;
            transition: border-color 0.25s, box-shadow 0.25s;
        }

        .faq-item.open {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-hover);
            background: #fff;
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text-primary);
            cursor: pointer;
            text-align: left;
            transition: color 0.2s;
            background: transparent;
        }

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

        .faq-icon {
            width: 22px;
            height: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--color-primary);
            flex-shrink: 0;
            transition: transform 0.3s;
            font-weight: 400;
        }

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

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

        .faq-answer-inner {
            padding: 0 22px 18px;
            font-size: 15px;
            line-height: 1.75;
            color: var(--color-text-body);
            border-top: 1px dashed var(--color-border);
            padding-top: 14px;
            margin: 0 22px 18px;
            padding-left: 0;
            padding-right: 0;
        }

        .faq-answer-inner p {
            margin: 0;
        }

        @media (max-width: 1024px) {
            .faq-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        /* ---------- CTA ---------- */
        .cta-section {
            background: var(--color-dark);
            position: relative;
            overflow: hidden;
        }

        .cta-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 80px 0;
        }

        .cta-inner h2 {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            margin: 0 0 16px;
            letter-spacing: -0.02em;
        }

        .cta-inner p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 520px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }

        .cta-buttons {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-lg);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.5;
            transition: all 0.2s ease;
            cursor: pointer;
            border: 1px solid transparent;
        }

        .btn:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        .btn-primary {
            background: var(--color-primary);
            color: var(--color-dark);
        }

        .btn-primary:hover {
            background: var(--color-primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(0, 200, 150, 0.3);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-outline-dark {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.5);
        }

        .btn-outline-dark:hover {
            background: #fff;
            color: var(--color-dark);
            border-color: #fff;
        }

        @media (max-width: 640px) {
            .cta-inner h2 {
                font-size: 26px;
            }

            .btn {
                padding: 12px 20px;
                font-size: 14px;
                width: 100%;
                justify-content: center;
            }
        }

        /* ---------- Footer ---------- */
        .site-footer {
            background: var(--color-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 64px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .brand-text {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 14px;
            max-width: 320px;
        }

        .footer-col h5 {
            font-size: 14px;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.9);
            margin: 0 0 16px;
            letter-spacing: 0.06em;
            text-transform: uppercase;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s;
        }

        .footer-col a:hover {
            color: var(--color-primary);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 24px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            flex-wrap: wrap;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            transition: color 0.2s;
            font-family: var(--font-mono);
            font-size: 12px;
        }

        .footer-bottom a:hover {
            color: var(--color-primary);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }