/* roulang page: index */
/* ========== 设计变量 ========== */
:root {
  --bg: #F5F3EF;
  --bg-dark: #1F2321;
  --primary: #A8763E;
  --primary-dark: #87582A;
  --primary-light: #C79A5F;
  --text: #2A2A26;
  --text-muted: #6B6B63;
  --card-bg: #FFFFFF;
  --border: #E3DFD8;
  --block-bg: #EDEAE4;
  --success: #3F7A5A;
  --danger: #A33A2F;
  --radius: 6px;
  --shadow: 0 2px 6px rgba(31,35,33,0.03);
  --shadow-hover: 0 6px 16px rgba(31,35,33,0.07);
  --font: "Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --transition: 0.25s;
  --container-w: 1200px;
  --space-mobile: 48px;
  --space-desktop: 88px;
}
/* ========== 基础 reset ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--transition); }
ul, ol { list-style: none; }
button { font-family: var(--font); cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: var(--font); font-size: 14px; }
.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}
/* ========== 导航 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  background: rgba(245,243,239,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.top-brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  padding: 10px 0;
  gap: 12px;
}
.brand-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.brand-logo a {
  font-size: 24px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: 1px;
}
.brand-logo a:hover { color: var(--primary); }
.brand-sub {
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 2px;
  margin-top: 2px;
  text-transform: uppercase;
}
.header-tools {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.search-box {
  position: relative;
  display: flex;
  align-items: center;
}
.search-box input {
  width: 200px;
  height: 36px;
  border: 1px solid #D8D3CA;
  border-radius: 4px;
  padding: 0 12px 0 34px;
  background: var(--card-bg);
  transition: width 0.3s ease, border-color var(--transition), box-shadow var(--transition);
}
.search-box input:focus {
  width: 260px;
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(168,118,62,0.18);
}
.search-box .search-icon {
  position: absolute;
  left: 12px;
  font-size: 13px;
  color: var(--text-muted);
  pointer-events: none;
}
.hot-tags {
  display: flex;
  gap: 8px;
  align-items: center;
}
.hot-tags a {
  font-size: 12px;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2px 10px;
  background: var(--card-bg);
  transition: all var(--transition);
}
.hot-tags a:hover {
  color: var(--primary);
  border-color: var(--primary-light);
  background: rgba(168,118,62,0.06);
}
.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-dark);
  color: #D8B98A;
  font-size: 14px;
  font-weight: 600;
  padding: 8px 20px;
  border-radius: 4px;
  transition: all var(--transition);
}
.btn-cta:hover {
  background: var(--primary);
  color: var(--bg-dark);
}
.main-nav {
  border-top: 1px solid var(--border);
}
.nav-list {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  padding: 0;
}
.nav-list > li a {
  display: block;
  padding: 10px 20px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
}
.nav-list > li a:hover {
  color: var(--primary);
}
.nav-list > li.active a {
  color: var(--primary-dark);
  border-bottom-color: var(--primary);
  font-weight: 600;
}
.nav-toggle {
  display: none;
  font-size: 22px;
  color: var(--text);
  padding: 6px 10px;
}
/* ========== Hero 首屏 ========== */
.hero-section {
  position: relative;
  background-color: var(--bg-dark);
  background-image: linear-gradient(rgba(31,35,33,0.72), rgba(31,35,33,0.78)), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  padding: 64px 0 0;
  color: #fff;
}
.hero-section .container {
  max-width: var(--container-w);
}
.hero-content {
  text-align: center;
  padding: 20px 0 52px;
}
.hero-content h1 {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: 2px;
  color: #fff;
  margin-bottom: 12px;
}
.hero-subtitle {
  font-size: 18px;
  color: rgba(255,255,255,0.85);
  font-weight: 300;
  max-width: 600px;
  margin: 0 auto 36px;
}
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}
.stat-item {
  text-align: center;
}
.stat-num {
  display: block;
  font-size: 30px;
  font-weight: 700;
  color: var(--primary-light);
  font-variant-numeric: tabular-nums;
}
.stat-label {
  font-size: 13px;
  color: rgba(255,255,255,0.7);
  margin-top: 4px;
}
/* ========== 倒计时条 ========== */
.countdown-bar {
  background: var(--bg-dark);
  border-top: 1px solid rgba(168,118,62,0.3);
  border-bottom: 1px solid rgba(168,118,62,0.3);
}
.countdown-bar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 14px;
  padding-bottom: 14px;
  flex-wrap: wrap;
}
.activity-name {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  white-space: nowrap;
}
.activity-name::before {
  content: "●";
  color: var(--primary-light);
  margin-right: 8px;
  font-size: 10px;
  vertical-align: middle;
}
.countdown-timer {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.countdown-item {
  display: flex;
  align-items: baseline;
  gap: 4px;
  background: rgba(255,255,255,0.06);
  border-radius: 4px;
  padding: 4px 10px;
}
.countdown-num {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-light);
  font-variant-numeric: tabular-nums;
}
.countdown-label {
  font-size: 12px;
  color: rgba(255,255,255,0.6);
}
.countdown-sep {
  color: rgba(255,255,255,0.4);
  font-size: 18px;
}
.countdown-cta {
  color: var(--primary-light);
  font-size: 14px;
  font-weight: 600;
  border-bottom: 1px solid var(--primary);
  padding-bottom: 2px;
  white-space: nowrap;
  transition: color var(--transition);
}
.countdown-cta:hover {
  color: #fff;
  border-color: #fff;
}
/* ========== 通用板块 ========== */
.section {
  padding: var(--space-mobile) 0;
}
.section-title-wrap {
  margin-bottom: 32px;
}
.section-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.3;
}
.section-line {
  width: 40px;
  height: 2px;
  background: var(--primary);
}
.section-white { background: var(--card-bg); }
.section-light { background: var(--bg); }
.section-dark { background: var(--bg-dark); }
.section-dark .section-title { color: #fff; }
/* ========== 活动卖点 ========== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: box-shadow var(--transition), border-color var(--transition);
}
.feature-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--primary-light);
}
.feature-icon {
  width: 44px;
  height: 44px;
  background: rgba(168,118,62,0.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--primary);
  margin-bottom: 16px;
}
.feature-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text);
}
.feature-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-muted);
}
/* ========== 图墙 ========== */
.gallery-row {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 20px;
  margin-bottom: 20px;
}
.gallery-row.reverse {
  grid-template-columns: 5fr 7fr;
}
.gallery-main {
  display: grid;
  gap: 20px;
}
.gallery-side {
  display: grid;
  grid-template-rows: 1fr 1fr;
  gap: 20px;
}
.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  min-height: 165px;
  background-size: cover;
  background-position: center;
}
.gallery-item-lg {
  min-height: 350px;
}
.gallery-overlay {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 20px 22px;
  background: linear-gradient(to top, rgba(31,35,33,0.75), transparent);
  transform: translateY(14px);
  transition: transform 0.3s ease;
}
.gallery-item:hover .gallery-overlay {
  transform: translateY(0);
}
.gallery-tag {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 3px;
  margin-bottom: 6px;
  letter-spacing: 1px;
}
.gallery-overlay p {
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
}
/* ========== 表单区 ========== */
.cta-form-section {
  background: var(--bg-dark);
  background-image: linear-gradient(rgba(31,35,33,0.85), rgba(31,35,33,0.85)), url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  padding: var(--space-mobile) 0;
}
.cta-form-section .section-title { color: #fff; }
.cta-form-section .section-line { background: var(--primary-light); }
.form-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.form-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-hover);
}
.form-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--text);
}
.form-group {
  margin-bottom: 16px;
}
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}
.form-group .forms-input,
.form-group textarea {
  width: 100%;
  border: 1px solid #D8D3CA;
  border-radius: 4px;
  padding: 10px 12px;
  background: #fff;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-group .forms-input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(168,118,62,0.18);
}
.form-group textarea {
  resize: vertical;
  min-height: 80px;
}
.form-submit {
  width: 100%;
  background: var(--primary);
  color: var(--bg-dark);
  font-size: 15px;
  font-weight: 600;
  padding: 12px;
  border-radius: 4px;
  cursor: pointer;
  border: none;
  transition: background var(--transition);
}
.form-submit:hover {
  background: var(--primary-light);
}
.form-status {
  margin-top: 12px;
  font-size: 13px;
  padding: 10px 12px;
  border-radius: 4px;
  display: none;
}
.form-status.success {
  display: block;
  background: rgba(63,122,90,0.1);
  color: var(--success);
  border: 1px solid rgba(63,122,90,0.3);
}
.form-status.error {
  display: block;
  background: rgba(163,58,47,0.08);
  color: var(--danger);
  border: 1px solid rgba(163,58,47,0.25);
}
.form-aside {
  color: rgba(255,255,255,0.85);
}
.form-aside h3 {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 24px;
  line-height: 1.4;
}
.form-aside-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
  font-size: 15px;
  line-height: 1.6;
}
.form-aside-item .fa-icon {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  background: rgba(168,118,62,0.25);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-light);
  font-size: 15px;
}
/* ========== FAQ ========== */
.faq-section {
  background: var(--bg);
}
.faq-wrap {
  max-width: 900px;
  margin: 0 auto;
}
.accordion-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card-bg);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color var(--transition);
}
.accordion-item.active {
  border-color: var(--primary-light);
}
.accordion-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  background: none;
  text-align: left;
  transition: background var(--transition);
}
.accordion-header:hover {
  background: var(--block-bg);
}
.accordion-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--primary);
  transition: transform 0.3s ease, background var(--transition);
}
.accordion-item.active .accordion-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.accordion-content-inner {
  padding: 0 20px 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  padding-top: 14px;
}
/* ========== 最新动态 ========== */
.news-section {
  background: var(--card-bg);
}
.news-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
}
.news-list {
  display: flex;
  flex-direction: column;
}
.news-item-link {
  border-bottom: 1px solid var(--border);
  padding: 18px 0;
  transition: background var(--transition), padding-left var(--transition);
}
.news-item-link:first-child { padding-top: 0; }
.news-item-link:hover {
  padding-left: 10px;
}
.news-item-link:hover .news-title {
  color: var(--primary-dark);
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 6px;
}
.news-category {
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  border: 1px solid var(--primary-light);
  padding: 1px 8px;
  border-radius: 3px;
}
.news-date {
  font-size: 12px;
  color: var(--text-muted);
}
.news-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  transition: color var(--transition);
  margin-bottom: 6px;
  line-height: 1.4;
}
.news-excerpt {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.empty-tip {
  padding: 40px 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 15px;
  background: var(--block-bg);
  border-radius: var(--radius);
}
.empty-tip::before {
  content: "●";
  color: var(--success);
  margin-right: 8px;
  font-size: 12px;
}
.news-sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.sidebar-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.sidebar-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 14px;
  color: var(--text);
  border-left: 3px solid var(--primary);
  padding-left: 10px;
}
.sidebar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.sidebar-tags a {
  font-size: 13px;
  color: var(--text);
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 4px 12px;
  transition: all var(--transition);
}
.sidebar-tags a:hover {
  color: var(--primary);
  border-color: var(--primary);
}
.sidebar-cta-card {
  background: var(--bg-dark);
  border: none;
  color: #fff;
}
.sidebar-cta-card h3 {
  color: #fff;
  border-color: var(--primary-light);
}
.sidebar-cta-card p {
  font-size: 14px;
  color: rgba(255,255,255,0.8);
  margin-bottom: 16px;
}
.sidebar-cta-card .btn-small {
  display: inline-block;
  background: var(--primary);
  color: var(--bg-dark);
  font-size: 14px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 4px;
  transition: background var(--transition);
}
.sidebar-cta-card .btn-small:hover {
  background: var(--primary-light);
}
/* ========== 二次 CTA 横幅 ========== */
.cta-banner {
  background: var(--bg-dark);
  border-top: 3px solid var(--primary);
  padding: 56px 0;
  text-align: center;
}
.cta-banner .section-title {
  color: #fff;
  font-size: 26px;
}
.cta-banner .section-line {
  margin: 12px auto 0;
}
.cta-banner p {
  color: rgba(255,255,255,0.8);
  font-size: 16px;
  max-width: 600px;
  margin: 16px auto 28px;
}
.btn-main {
  display: inline-block;
  background: var(--primary);
  color: var(--bg-dark);
  font-size: 16px;
  font-weight: 600;
  padding: 12px 36px;
  border-radius: 4px;
  transition: background var(--transition), color var(--transition);
}
.btn-main:hover {
  background: var(--primary-light);
  color: var(--bg-dark);
}
/* ========== 页脚 ========== */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.7);
  padding: 56px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .brand-logo a {
  color: #fff;
}
.footer-brand .brand-logo a:hover {
  color: var(--primary-light);
}
.footer-brand .brand-sub {
  color: rgba(255,255,255,0.5);
}
.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  margin-top: 16px;
  color: rgba(255,255,255,0.6);
}
.footer-col h4 {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}
.footer-col ul li {
  margin-bottom: 8px;
}
.footer-col ul li a {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: color var(--transition);
}
.footer-col ul li a:hover {
  color: var(--primary-light);
}
.footer-bottom {
  text-align: center;
  padding: 20px 0;
  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(--primary-light);
}
/* ========== 响应式断点 ========== */
@media (max-width: 1024px) {
  .hero-content h1 { font-size: 28px; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .gallery-row { grid-template-columns: 1fr; }
  .gallery-row.reverse { grid-template-columns: 1fr; }
  .gallery-main { min-height: auto; }
  .gallery-item-lg { min-height: 280px; }
  .form-layout { grid-template-columns: 1fr; gap: 32px; }
  .news-layout { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .top-brand-row { flex-direction: column; align-items: flex-start; }
  .header-tools { width: 100%; flex-wrap: wrap; }
  .search-box input { width: 100%; }
  .search-box input:focus { width: 100%; }
  .nav-toggle { display: block; }
  .nav-list {
    display: none;
    flex-direction: column;
    width: 100%;
  }
  .nav-list.open { display: flex; }
  .nav-list > li a { padding: 12px 16px; border-bottom: 1px solid var(--border); }
  .nav-list > li.active a { border-bottom: 2px solid var(--primary); }
  .feature-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 24px; }
  .countdown-bar .container { flex-direction: column; align-items: flex-start; }
  .countdown-timer { justify-content: flex-start; }
}
@media (max-width: 520px) {
  body { font-size: 15px; }
  .section { padding: var(--space-mobile) 0; }
  .hero-content h1 { font-size: 22px; }
  .hero-subtitle { font-size: 15px; }
  .hero-stats { justify-content: space-between; width: 100%; }
  .stat-num { font-size: 24px; }
  .stat-label { font-size: 12px; }
  .countdown-item { padding: 3px 8px; }
  .countdown-num { font-size: 16px; }
  .countdown-label { font-size: 11px; }
  .section-title { font-size: 20px; }
  .feature-card { padding: 20px; }
  .gallery-item-lg { min-height: 220px; }
  .form-card { padding: 18px; }
  .cta-form-section .section-title { font-size: 20px; }
  .form-aside h3 { font-size: 18px; }
  .news-title { font-size: 16px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .cta-banner .section-title { font-size: 22px; }
}

/* roulang page: category1 */
/* ========== 设计变量 ========== */
:root {
  --bg-body: #F5F3EF;
  --bg-dark: #1F2321;
  --bg-card: #FFFFFF;
  --bg-soft: #EDEAE4;
  --primary: #A8763E;
  --primary-dark: #87582A;
  --primary-light: #C79A5F;
  --text-main: #2A2A26;
  --text-sub: #6B6B63;
  --border-line: #E3DFD8;
  --success: #3F7A5A;
  --danger: #B34A4A;
  --radius: 6px;
  --shadow-card: 0 2px 6px rgba(31,35,33,0.03);
  --shadow-hover: 0 6px 16px rgba(31,35,33,0.07);
  --font-main: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --space-section: 88px;
  --space-section-mobile: 48px;
  --container-w: 1200px;
}

/* ========== Reset 与基础 ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  background-color: var(--bg-body);
  color: var(--text-main);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; object-fit: cover; }
a { text-decoration: none; color: inherit; transition: color 0.25s ease, background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease; }
ul, ol { list-style: none; }
button { font-family: var(--font-main); cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: var(--font-main); }

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

/* ========== 按钮体系 ========== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--bg-dark);
  color: var(--primary-light);
  font-size: 15px;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: 4px;
  border: 1px solid var(--bg-dark);
  transition: all 0.3s ease;
  letter-spacing: 0.02em;
}
.btn-primary:hover {
  background-color: var(--primary);
  color: #1F2321;
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(168,118,62,0.25);
}
.btn-primary i { font-size: 14px; }

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: transparent;
  color: var(--primary-dark);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: 4px;
  border: 1px solid var(--primary);
  transition: all 0.3s ease;
}
.btn-outline:hover {
  background-color: rgba(168,118,62,0.10);
  color: var(--primary-dark);
  border-color: var(--primary-dark);
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, var(--primary), #B8894E);
  color: #1F2321;
  font-size: 14px;
  font-weight: 700;
  padding: 9px 20px;
  border-radius: 4px;
  border: 1px solid transparent;
  transition: all 0.3s ease;
  white-space: nowrap;
}
.btn-cta:hover {
  background: linear-gradient(135deg, #C79A5F, var(--primary-light));
  color: #1F2321;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(168,118,62,0.30);
}

.btn-gold {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #1F2321;
  font-size: 16px;
  font-weight: 600;
  padding: 14px 34px;
  border-radius: 4px;
  border: 1px solid var(--primary);
  transition: all 0.3s ease;
  letter-spacing: 0.03em;
}
.btn-gold:hover {
  background: #C79A5F;
  border-color: #C79A5F;
  color: #1F2321;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(168,118,62,0.30);
}

/* ========== 站点头部导航 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245, 243, 239, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-line);
  box-shadow: 0 2px 12px rgba(31,35,33,0.04);
}
.site-header .container { padding: 0 24px; }

.top-brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  padding: 14px 0 10px;
  gap: 12px;
}

.brand-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  flex-shrink: 0;
}
.brand-logo a {
  font-size: 24px;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: 0.01em;
}
.brand-logo a:hover { color: var(--primary); }
.brand-sub {
  font-size: 10px;
  color: var(--text-sub);
  letter-spacing: 0.15em;
  margin-top: 2px;
  font-weight: 500;
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.search-box {
  display: flex;
  align-items: center;
  background: #fff;
  border: 1px solid #D8D3CA;
  border-radius: 4px;
  padding: 0 12px;
  width: 200px;
  height: 38px;
  transition: width 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.search-box:focus-within {
  width: 260px;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(168,118,62,0.18);
}
.search-icon { color: var(--text-sub); font-size: 13px; margin-right: 8px; }
.search-box input {
  border: none;
  outline: none;
  background: transparent;
  width: 100%;
  font-size: 13px;
  color: var(--text-main);
}
.search-box input::placeholder { color: #9A968D; }

.hot-tags {
  display: flex;
  align-items: center;
  gap: 10px;
}
.hot-tags a {
  font-size: 13px;
  color: var(--text-sub);
  font-weight: 500;
}
.hot-tags a:hover { color: var(--primary-dark); }

.nav-toggle {
  display: none;
  font-size: 20px;
  color: var(--text-main);
  padding: 4px 8px;
  border-radius: 4px;
}
.nav-toggle:hover { background: var(--bg-soft); }

.main-nav {
  border-top: 1px solid var(--border-line);
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0;
  margin: 0;
}
.nav-list > li { position: relative; }
.nav-list > li a {
  display: block;
  padding: 14px 20px 12px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  border-bottom: 2px solid transparent;
  transition: all 0.25s ease;
}
.nav-list > li a:hover {
  color: var(--primary);
}
.nav-list > li.active a {
  color: var(--primary-dark);
  border-bottom-color: var(--primary);
}

/* ========== 页脚 ========== */
.site-footer {
  background: var(--bg-dark);
  color: #C8C4BC;
  padding: 56px 0 24px;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .brand-logo a { color: #fff; }
.footer-brand .brand-logo a:hover { color: var(--primary-light); }
.footer-brand .brand-sub { color: #8A877F; }
.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  color: #9A968D;
  margin-top: 16px;
  max-width: 320px;
}
.footer-col h4 {
  color: #E8E4DC;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 12px;
}
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a {
  color: #9A968D;
  font-size: 14px;
}
.footer-col ul li a:hover { color: var(--primary-light); }
.footer-bottom {
  padding-top: 20px;
  font-size: 13px;
  color: #77736B;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}
.footer-bottom a { color: #9A968D; }

/* ========== 分类页1 页面样式 ========== */

/* 页头横幅 */
.category-hero {
  background: linear-gradient(135deg, #1F2321 0%, #2A2E2C 60%, #332F28 100%);
  padding: 72px 0 64px;
  position: relative;
  overflow: hidden;
}
.category-hero::before {
  content: '';
  position: absolute;
  right: -80px;
  top: -80px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(168,118,62,0.35) 0%, transparent 70%);
}
.category-hero::after {
  content: '';
  position: absolute;
  left: 40%;
  bottom: -120px;
  width: 420px;
  height: 220px;
  background: radial-gradient(ellipse, rgba(199,154,95,0.20) 0%, transparent 70%);
}
.category-hero .container { position: relative; z-index: 2; }
.crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #8A877F;
  margin-bottom: 24px;
}
.crumb a { color: #9A968D; }
.crumb a:hover { color: var(--primary-light); }
.crumb .sep { color: #555; }
.crumb .current { color: var(--primary-light); }

.category-hero h1 {
  font-size: 30px;
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1.4;
  margin-bottom: 14px;
}
.category-hero h1 span { color: var(--primary-light); }
.hero-desc {
  font-size: 16px;
  color: #B8B4AC;
  line-height: 1.8;
  max-width: 640px;
  margin-bottom: 28px;
}
.hero-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.hero-meta .tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(168,118,62,0.15);
  color: var(--primary-light);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 4px;
  border: 1px solid rgba(199,154,95,0.3);
}

/* 产品概览数据卡 */
.overview-stats {
  background: var(--bg-body);
  padding: 48px 0;
}
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-box {
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}
.stat-box:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.stat-num {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary-dark);
  font-variant-numeric: tabular-nums;
  margin-bottom: 4px;
}
.stat-label {
  font-size: 14px;
  color: var(--text-sub);
  font-weight: 500;
}

/* 规格参数主区 */
.spec-section {
  padding: var(--space-section) 0;
  background: var(--bg-body);
}
.section-head {
  margin-bottom: 40px;
}
.section-head h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.4;
  margin-bottom: 12px;
}
.section-head .gold-line {
  display: block;
  width: 40px;
  height: 2px;
  background: var(--primary);
  margin: 0 0 16px;
}
.section-head p {
  font-size: 15px;
  color: var(--text-sub);
  max-width: 720px;
  line-height: 1.7;
}

.spec-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 40px;
  align-items: start;
}

.spec-list {
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.spec-list-header {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1fr;
  gap: 16px;
  background: var(--bg-dark);
  padding: 16px 24px;
}
.spec-list-header span {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary-light);
  letter-spacing: 0.05em;
}
.spec-item {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1fr;
  gap: 16px;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-line);
  transition: background 0.25s ease;
  align-items: center;
}
.spec-item:last-child { border-bottom: none; }
.spec-item:hover { background: rgba(168,118,62,0.04); }
.spec-item .p-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
}
.spec-item .p-name small {
  display: block;
  font-size: 12px;
  color: var(--text-sub);
  font-weight: 400;
  margin-top: 2px;
}
.spec-item .p-param {
  font-size: 14px;
  color: var(--text-sub);
  font-variant-numeric: tabular-nums;
}
.spec-item .p-tag {
  justify-self: start;
}
.spec-item .p-tag .badge {
  display: inline-block;
  background: var(--bg-soft);
  border: 1px solid var(--border-line);
  color: var(--text-sub);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 4px;
}
.badge-gold {
  background: rgba(168,118,62,0.10) !important;
  border-color: rgba(168,118,62,0.35) !important;
  color: var(--primary-dark) !important;
}

/* 封面大图 侧栏 */
.spec-side {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.spec-side .side-img {
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-line);
}
.spec-side .side-img img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.spec-side .side-img:hover img { transform: scale(1.03); }
.side-img .img-cap {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 16px;
  background: linear-gradient(to top, rgba(31,35,33,0.85), transparent);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
}
.side-note {
  background: var(--bg-soft);
  border-radius: var(--radius);
  padding: 20px;
  border: 1px solid var(--border-line);
}
.side-note h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 10px;
}
.side-note p {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.7;
}

/* 品质与检测条 */
.quality-strip {
  background: var(--bg-dark);
  padding: 56px 0;
}
.quality-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.quality-item {
  text-align: center;
  padding: 20px 16px;
}
.quality-item .q-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(168,118,62,0.18);
  color: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin: 0 auto 14px;
  border: 1px solid rgba(199,154,95,0.25);
}
.quality-item h3 {
  color: #E8E4DC;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}
.quality-item p {
  color: #8A877F;
  font-size: 13px;
  line-height: 1.6;
}

/* 适用领域 */
.scope-section {
  padding: var(--space-section) 0;
  background: var(--bg-body);
}
.scope-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.scope-card {
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow-card);
  transition: all 0.3s ease;
}
.scope-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--primary-light);
  transform: translateY(-3px);
}
.scope-card .s-icon {
  font-size: 26px;
  color: var(--primary);
  margin-bottom: 14px;
}
.scope-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-main);
}
.scope-card p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}

/* 定制服务流程 */
.process-section {
  padding: var(--space-section) 0;
  background: var(--bg-soft);
}
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.process-step {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius);
  padding: 28px 22px;
  box-shadow: var(--shadow-card);
  transition: all 0.3s ease;
}
.process-step:hover {
  box-shadow: var(--shadow-hover);
}
.step-num {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary-light);
  font-variant-numeric: tabular-nums;
  margin-bottom: 10px;
  opacity: 0.8;
}
.step-num::before {
  content: '0';
}
.process-step:nth-child(n+10) .step-num::before { content: ''; }
.process-step h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-main);
}
.process-step p {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.7;
}

/* FAQ */
.faq-section {
  padding: var(--space-section) 0;
  background: var(--bg-body);
}
.faq-wrap {
  max-width: 900px;
  margin: 0 auto;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: box-shadow 0.3s ease;
}
.faq-item:hover { box-shadow: var(--shadow-hover); }
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
}
.faq-q .faq-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--border-line);
  color: var(--primary);
  font-size: 14px;
  transition: transform 0.3s ease, background 0.3s ease;
}
.faq-q[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.faq-a {
  display: none;
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.8;
}
.faq-a.open { display: block; }

/* CTA 横幅 */
.cta-banner {
  background: var(--bg-dark);
  padding: 70px 0;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(to right, var(--primary), var(--primary-light), var(--primary));
}
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-inner h2 {
  color: #fff;
  font-size: 24px;
  font-weight: 700;
  line-height: 1.5;
}
.cta-inner p {
  color: #9A968D;
  font-size: 15px;
  margin-top: 8px;
}

/* 响应式 */
@media screen and (max-width: 1023px) {
  .spec-layout {
    grid-template-columns: 1fr;
  }
  .spec-side {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
  .scope-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-steps {
    grid-template-columns: repeat(2, 1fr);
  }
  .quality-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media screen and (max-width: 639px) {
  :root {
    --space-section: 48px;
  }
  .container { padding: 0 16px; }
  .category-hero h1 { font-size: 22px; }
  .category-hero { padding: 48px 0 40px; }

  .top-brand-row {
    flex-wrap: wrap;
    gap: 8px;
  }
  .brand-logo a { font-size: 22px; }
  .header-tools { width: 100%; justify-content: space-between; }
  .search-box { display: none; }
  .hot-tags { display: none; }
  .nav-toggle { display: block; }
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-body);
    border-bottom: 1px solid var(--border-line);
    box-shadow: 0 8px 16px rgba(31,35,33,0.08);
  }
  .main-nav.open { display: block; }
  .nav-list { flex-direction: column; padding: 8px 0; }
  .nav-list > li a {
    padding: 12px 24px;
    border-bottom: 1px solid var(--border-line);
  }
  .nav-list > li.active a { border-bottom-color: var(--border-line); background: rgba(168,118,62,0.06); }

  .spec-list-header {
    grid-template-columns: 1fr 0.8fr;
    padding: 12px 16px;
  }
  .spec-list-header span:last-child { display: none; }
  .spec-item {
    grid-template-columns: 1fr 0.8fr;
    padding: 14px 16px;
    gap: 12px;
  }
  .spec-item .p-tag { display: none; }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .cta-inner { flex-direction: column; text-align: center; }
  .cta-inner .btn-gold { width: 100%; justify-content: center; }
  .process-steps { grid-template-columns: 1fr; }
  .scope-grid { grid-template-columns: 1fr; }
  .quality-grid { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: 1fr; }
  .spec-side { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* roulang page: article */
:root {
  --bg: #F5F3EF;
  --ink: #2A2A26;
  --muted: #6B6B63;
  --line: #E3DFD8;
  --card: #FFFFFF;
  --dark: #1F2321;
  --brand: #A8763E;
  --brand-deep: #87582A;
  --brand-light: #C79A5F;
  --block: #EDEAE4;
  --success: #3F7A5A;
  --danger: #B5483C;
  --radius: 6px;
  --shadow: 0 2px 6px rgba(31,35,33,0.03);
  --shadow-hover: 0 8px 20px rgba(31,35,33,0.08);
  --max: 1200px;
  --space: 88px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--brand); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--brand-deep); }
ul, ol { padding-left: 0; list-style: none; margin: 0; }
.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255,251,245,0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 4px rgba(31,35,33,0.02);
}
.top-brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 14px 0 10px;
}
.brand-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}
.brand-logo a {
  font-size: 24px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: 1px;
}
.brand-logo a:hover { color: var(--brand); }
.brand-sub {
  font-size: 11px;
  color: var(--brand);
  letter-spacing: 2px;
  font-weight: 600;
}
.header-tools {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.search-box {
  position: relative;
  display: flex;
  align-items: center;
  width: 200px;
  transition: width .3s ease;
}
.search-box:focus-within { width: 260px; }
.search-box .search-icon {
  position: absolute;
  left: 10px;
  color: var(--muted);
  font-size: 14px;
  pointer-events: none;
}
.search-box input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--card);
  padding: 8px 12px 8px 34px;
  font-size: 13px;
  color: var(--ink);
  outline: none;
  transition: border-color .25s, box-shadow .25s;
}
.search-box input:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(168,118,62,0.16); }
.hot-tags { display: flex; gap: 8px; align-items: center; }
.hot-tags a {
  font-size: 13px;
  color: var(--muted);
  background: var(--block);
  padding: 4px 10px;
  border-radius: 30px;
  transition: background .2s,color .2s;
}
.hot-tags a:hover { background: var(--brand); color: #fff; }
.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--dark);
  color: #F2E8DA;
  font-size: 14px;
  font-weight: 600;
  padding: 9px 18px;
  border-radius: 4px;
  border: 1px solid var(--dark);
  cursor: pointer;
  transition: background .25s,color .25s,transform .2s;
}
.btn-cta:hover { background: var(--brand); color: #1F2321; }
.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--ink);
  font-size: 16px;
  padding: 8px 12px;
  cursor: pointer;
}
.main-nav {
  border-top: 1px solid var(--line);
  background: transparent;
}
.nav-list {
  display: flex;
  gap: 32px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.nav-list li a {
  display: block;
  padding: 12px 2px 11px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  border-bottom: 3px solid transparent;
  white-space: nowrap;
  transition: color .2s,border-color .2s;
}
.nav-list li.active a {
  color: var(--brand);
  border-bottom-color: var(--brand);
}
.nav-list li a:hover { color: var(--brand); border-bottom-color: var(--brand-light); }
.breadcrumb {
  padding: 22px 0 6px;
  font-size: 13px;
  color: var(--muted);
}
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--brand); }
.breadcrumb svg { margin: 0 6px; }
.article-layout .columns { padding-left: 16px; padding-right: 16px; }
.article-layout { margin: 0 -16px; margin-top: 8px; }
.article-main { padding-bottom: 24px; }
.article-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 36px 40px;
  box-shadow: var(--shadow);
}
.article-card h1 {
  font-size: 28px;
  font-weight: 800;
  line-height: 1.45;
  margin: 0 0 18px;
  color: var(--ink);
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}
.article-meta i { margin-right: 5px; color: var(--brand-light); }
.article-meta .cat-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: transparent;
  border: 1px solid var(--brand-light);
  color: var(--brand-deep);
  border-radius: 30px;
  padding: 2px 12px;
  font-size: 12px;
  font-weight: 600;
}
.article-content {
  max-width: 680px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink);
}
.article-content p { margin: 0 0 24px; }
.article-content h2 {
  font-size: 22px;
  font-weight: 700;
  margin: 36px 0 18px;
  padding-left: 12px;
  border-left: 4px solid var(--brand);
  line-height: 1.4;
}
.article-content h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 28px 0 14px;
}
.article-content img {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  margin: 20px 0;
}
.article-content blockquote {
  margin: 24px 0;
  padding: 16px 20px;
  background: var(--block);
  border-left: 4px solid var(--brand);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--muted);
  font-style: normal;
}
.article-content ul, .article-content ol {
  margin: 0 0 24px;
  padding-left: 22px;
}
.article-content ul li, .article-content ol li {
  list-style: disc;
  margin: 6px 0;
}
.article-content ol li { list-style: decimal; }
.article-content a { font-weight: 600; border-bottom: 1px dashed var(--brand-light); }
.article-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 36px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-size: 14px;
}
.article-nav a {
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color .2s;
}
.article-nav a:hover { color: var(--brand); }
.not-found { text-align: center; padding: 70px 24px; }
.not-found .nf-icon {
  font-size: 46px;
  color: var(--brand-light);
  margin-bottom: 18px;
}
.not-found h1 { font-size: 24px; margin-bottom: 12px; border: none; }
.not-found p { color: var(--muted); margin-bottom: 24px; }
.sidebar .side-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
  transition: box-shadow .25s,border-color .25s;
}
.sidebar .side-card:hover { border-color: var(--brand-light); box-shadow: var(--shadow-hover); }
.side-card-title {
  font-size: 17px;
  font-weight: 700;
  margin: 0 0 18px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.side-card-title i { color: var(--brand); font-size: 16px; }
.side-nav-list li { border-bottom: 1px solid var(--line); }
.side-nav-list li:last-child { border-bottom: none; }
.side-nav-list a {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 13px 0;
  color: var(--ink);
}
.side-nav-list a:hover { color: var(--brand); }
.side-nav-list .side-nav-icon {
  margin-top: 2px;
  color: var(--brand-light);
}
.side-nav-list .side-nav-text b { display: block; font-size: 15px; font-weight: 600; }
.side-nav-list .side-nav-text span { color: var(--muted); font-size: 13px; }
.side-cta {
  background: var(--dark);
  border: none;
  color: #F2E8DA;
}
.side-cta h3 { color: #F2E8DA; border: none; margin-bottom: 10px; }
.side-cta p { color: rgba(242,232,218,0.7); font-size: 14px; margin-bottom: 18px; }
.side-cta .btn-gold {
  display: block;
  text-align: center;
  width: 100%;
  background: var(--brand);
  color: #1F2321;
  font-weight: 600;
  padding: 11px 0;
  border-radius: 4px;
  transition: background .25s;
}
.side-cta .btn-gold:hover { background: var(--brand-light); color: #1F2321; }
.side-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.side-tags a {
  background: var(--block);
  color: var(--muted);
  font-size: 13px;
  padding: 5px 12px;
  border-radius: 30px;
  transition: background .2s,color .2s;
}
.side-tags a:hover { background: var(--brand); color: #fff; }
.related-section { margin-top: 22px; padding-bottom: 10px; }
.related-title {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding-left: 12px;
  border-left: 4px solid var(--brand);
}
.related-title i { color: var(--brand); font-size: 18px; }
.related-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.related-card {
  display: flex;
  gap: 14px;
  align-items: center;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  transition: border-color .25s,box-shadow .25s;
}
.related-card:hover { border-color: var(--brand-light); box-shadow: var(--shadow-hover); }
.related-card img {
  width: 88px;
  height: 64px;
  object-fit: cover;
  border-radius: 4px;
}
.related-card h4 {
  font-size: 14px;
  line-height: 1.5;
  margin: 0 0 4px;
  font-weight: 600;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-card span { color: var(--brand); font-size: 13px; }
.contact-band {
  background: var(--dark);
  margin: 60px 0 0;
  color: #F2E8DA;
}
.contact-inner {
  display: flex;
  gap: 48px;
  align-items: center;
  padding: 72px 0 80px;
}
.contact-text { flex: 1 1 40%; }
.contact-text h2 { font-size: 26px; font-weight: 700; margin: 0 0 14px; color: #F2E8DA; }
.contact-text p { color: rgba(242,232,218,0.7); font-size: 15px; margin-bottom: 18px; max-width: 380px; }
.contact-points { margin-top: 18px; }
.contact-points li { display: flex; gap: 10px; align-items: flex-start; margin-bottom: 10px; color: rgba(242,232,218,0.8); font-size: 14px; }
.contact-points i { color: var(--brand-light); margin-top: 3px; }
.contact-form-wrap { flex: 1 1 60%; background: var(--card); border-radius: 8px; padding: 32px; color: var(--ink); }
.contact-form-wrap h3 { font-size: 20px; font-weight: 700; margin: 0 0 18px; color: var(--ink); }
.contact-form .field { margin-bottom: 16px; }
.contact-form label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--ink);
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid #D8D3CA;
  border-radius: 4px;
  background: #FBF8F4;
  padding: 11px 14px;
  font-size: 14px;
  color: var(--ink);
  outline: none;
  transition: border-color .25s, box-shadow .25s;
}
.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(168,118,62,0.2);
  background: #fff;
}
.contact-form textarea { resize: vertical; min-height: 88px; }
.btn-gold {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--brand);
  border: none;
  color: #1F2321;
  font-weight: 600;
  font-size: 15px;
  padding: 12px 32px;
  border-radius: 4px;
  cursor: pointer;
  transition: background .25s, transform .2s;
}
.btn-gold:hover { background: var(--brand-light); color: #1F2321; transform: translateY(-1px); }
.form-note { margin-top: 12px; font-size: 13px; color: var(--muted); }
.site-footer {
  background: #191D1B;
  color: rgba(230,226,218,0.75);
  padding: 60px 0 20px;
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}
.footer-brand .brand-logo a { color: #ECE7DE; }
.footer-brand .brand-sub { color: var(--brand-light); }
.footer-desc { margin-top: 14px; line-height: 1.8; color: rgba(230,226,218,0.6); max-width: 320px; }
.footer-col h4 {
  color: #ECE7DE;
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 16px;
}
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: rgba(230,226,218,0.6); transition: color .2s; }
.footer-col a:hover { color: var(--brand-light); }
.footer-bottom {
  border-top: 1px solid rgba(230,226,218,0.12);
  padding-top: 18px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  color: rgba(230,226,218,0.5);
  font-size: 13px;
}
.footer-bottom a { color: rgba(230,226,218,0.6); }
.footer-bottom a:hover { color: var(--brand-light); }
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--dark);
  color: #F2E8DA;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: 4px;
  border: 1px solid var(--dark);
  transition: background .25s,color .25s;
}
.btn-primary:hover { background: var(--brand); color: #1F2321; }
@media screen and (max-width: 1023px) {
  .container { padding: 0 20px; }
  .top-brand-row { padding-top: 12px; }
  .header-tools { gap: 8px; }
  .related-grid { grid-template-columns: 1fr 1fr; }
  .contact-inner { flex-direction: column; padding: 56px 0 64px; }
  .contact-text, .contact-form-wrap { flex: 1 1 auto; width: 100%; }
}
@media screen and (max-width: 767px) {
  :root { --space: 48px; }
  .top-brand-row { flex-wrap: wrap; }
  .header-tools { width: 100%; justify-content: flex-start; }
  .search-box { width: 100%; }
  .search-box:focus-within { width: 100%; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .main-nav { position: relative; }
  .nav-list {
    display: none;
    flex-direction: column;
    gap: 0;
    background: rgba(255,251,245,0.98);
    border-top: 1px solid var(--line);
    padding: 6px 0;
  }
  .nav-list.open { display: flex; }
  .nav-list li a { border-bottom: 1px solid var(--line); padding: 12px 4px; }
  .nav-list li.active a { border-bottom: 1px solid var(--line); color: var(--brand); }
  .hot-tags { order: 3; width: 100%; flex-wrap: wrap; }
  .article-card { padding: 24px 20px; }
  .article-card h1 { font-size: 22px; }
  .article-content { font-size: 15px; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .contact-form-wrap { padding: 24px 20px; }
  .btn-gold { width: 100%; }
  .breadcrumb { font-size: 12px; }
  .article-nav { flex-direction: column; gap: 10px; }
}

/* roulang page: category2 */
:root {
  --bg: #F5F3EF;
  --dark: #1F2321;
  --primary: #A8763E;
  --primary-dark: #87582A;
  --primary-light: #C79A5F;
  --text: #2A2A26;
  --text-secondary: #6B6B63;
  --card-bg: #FFFFFF;
  --border: #E3DFD8;
  --block-bg: #EDEAE4;
  --success: #3F7A5A;
  --radius-sm: 4px;
  --radius: 6px;
  --shadow: 0 2px 6px rgba(31,35,33,0.04);
  --shadow-hover: 0 8px 20px rgba(31,35,33,0.08);
  --font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --space-section: 88px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-family); background: var(--bg); color: var(--text); line-height: 1.7; font-size: 15px; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: all .25s ease; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: 15px; outline: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245,243,239,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.site-header .container { padding-top: 12px; padding-bottom: 0; }
.top-brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 12px;
  flex-wrap: wrap;
}
.brand-logo { display: flex; flex-direction: column; line-height: 1.2; }
.brand-logo a { font-size: 26px; font-weight: 800; color: var(--dark); letter-spacing: 0.5px; }
.brand-sub { font-size: 10px; color: var(--primary); letter-spacing: 2px; margin-top: 2px; font-weight: 500; }
.header-tools { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.search-box {
  display: flex;
  align-items: center;
  background: #fff;
  border: 1px solid #D8D3CA;
  border-radius: var(--radius-sm);
  padding: 0 12px;
  height: 38px;
  width: 200px;
  transition: width .3s ease, box-shadow .3s ease;
}
.search-box:focus-within { width: 260px; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(168,118,62,0.15); }
.search-icon { color: var(--text-secondary); font-size: 13px; margin-right: 8px; }
.search-box input { border: 0; background: transparent; height: 100%; width: 100%; color: var(--text); font-size: 14px; }
.search-box input::placeholder { color: #A0A098; }
.hot-tags { display: flex; gap: 10px; font-size: 13px; color: var(--primary-dark); }
.hot-tags a:hover { color: var(--primary); }
.btn-cta {
  background: var(--dark);
  color: #fff;
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  transition: background .25s, transform .2s;
}
.btn-cta:hover { background: var(--primary); color: #fff; transform: translateY(-1px); }
.btn-cta i { margin-right: 6px; }
.nav-toggle { display: none; background: transparent; border: 1px solid var(--border); color: var(--text); font-size: 18px; width: 40px; height: 38px; border-radius: var(--radius-sm); cursor: pointer; }
.main-nav { border-top: 1px solid rgba(227,223,216,0.6); }
.nav-list { display: flex; gap: 32px; }
.nav-list li { position: relative; }
.nav-list li a { display: block; padding: 14px 2px 12px; font-size: 15px; font-weight: 500; color: var(--text); border-bottom: 3px solid transparent; }
.nav-list li a:hover { color: var(--primary); }
.nav-list li.active a { color: var(--primary-dark); border-bottom-color: var(--primary); font-weight: 700; }

/* ===== Page Banner ===== */
.page-banner {
  background: linear-gradient(135deg, rgba(31,35,33,0.92), rgba(31,35,33,0.72)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: #fff;
  padding: 88px 0 72px;
  position: relative;
}
.page-banner::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  opacity: .8;
}
.banner-inner { max-width: 820px; }
.banner-eyebrow {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 4px;
  color: var(--primary-light);
  border: 1px solid rgba(199,154,95,0.5);
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 24px;
  font-weight: 500;
}
.page-banner h1 { font-size: 34px; font-weight: 800; line-height: 1.3; margin-bottom: 18px; }
.banner-desc { font-size: 17px; color: rgba(255,255,255,0.88); line-height: 1.8; margin-bottom: 32px; max-width: 680px; }
.banner-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-primary {
  background: var(--primary);
  color: var(--dark);
  border-radius: var(--radius-sm);
  padding: 14px 32px;
  font-weight: 700;
  font-size: 15px;
  border: 2px solid var(--primary);
  transition: all .25s ease;
}
.btn-primary:hover { background: var(--primary-light); border-color: var(--primary-light); color: var(--dark); box-shadow: 0 4px 14px rgba(168,118,62,0.35); transform: translateY(-2px); }
.btn-outline-light {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.6);
  border-radius: var(--radius-sm);
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 600;
  transition: all .25s ease;
}
.btn-outline-light:hover { border-color: #fff; background: rgba(255,255,255,0.08); transform: translateY(-2px); }

/* ===== Stats ===== */
.stats-section { padding: var(--space-section) 0; background: var(--bg); }
.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--shadow-hover) .3s, transform .3s;
  height: 100%;
}
.stat-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); border-color: var(--primary-light); }
.stat-num { font-size: 34px; font-weight: 800; color: var(--primary); line-height: 1.2; font-variant-numeric: tabular-nums; }
.stat-label { font-size: 14px; color: var(--text-secondary); margin-top: 10px; font-weight: 500; }

/* ===== Section Head ===== */
.section-head { text-align: center; margin-bottom: 48px; }
.section-head h2 { font-size: 28px; font-weight: 700; color: var(--text); position: relative; display: inline-block; padding-bottom: 14px; }
.section-head h2::after { content: ''; display: block; width: 44px; height: 3px; background: var(--primary); margin: 12px auto 0; border-radius: 2px; }
.section-head p { color: var(--text-secondary); max-width: 640px; margin: 16px auto 0; font-size: 15px; line-height: 1.8; }

/* ===== Solutions ===== */
.solutions-section { padding: var(--space-section) 0; background: #fff; }
.solution-block { margin-bottom: 64px; }
.solution-block:last-child { margin-bottom: 0; }
.solution-img { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); position: relative; }
.solution-img img { width: 100%; height: 320px; object-fit: cover; transition: transform .5s ease; }
.solution-img:hover img { transform: scale(1.04); }
.solution-content { padding: 16px 8px; }
.step-num { font-size: 52px; font-weight: 800; color: transparent; -webkit-text-stroke: 2px var(--primary); line-height: 1; display: block; margin-bottom: 10px; }
.solution-content h3 { font-size: 22px; font-weight: 700; margin-bottom: 14px; color: var(--text); }
.solution-content p { font-size: 15px; line-height: 1.85; color: var(--text-secondary); margin-bottom: 18px; }
.solution-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.solution-tags li {
  padding: 6px 14px;
  border: 1px solid var(--primary-light);
  border-radius: 20px;
  font-size: 13px;
  color: var(--primary-dark);
  background: rgba(168,118,62,0.06);
  font-weight: 500;
}
.solution-block.reverse > .cell:first-child { order: 2; }
.solution-block.reverse > .cell:last-child { order: 1; }

/* ===== Compare Table ===== */
.compare-section { padding: var(--space-section) 0; background: var(--bg); }
.table-wrap {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow);
  margin-bottom: 18px;
}
.compare-table { width: 100%; border-collapse: collapse; }
.compare-table th {
  background: var(--dark);
  color: #fff;
  padding: 16px 18px;
  font-size: 14px;
  font-weight: 600;
  text-align: left;
  letter-spacing: 0.5px;
}
.compare-table td {
  padding: 16px 18px;
  border-top: 1px solid var(--border);
  font-size: 14px;
  color: var(--text);
  background: #fff;
}
.compare-table tr th:first-child { border-radius: 0; }
.compare-table tr:hover td { background: rgba(168,118,62,0.045); }
.compare-note {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  background: var(--block-bg);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
}
.compare-note i { color: var(--primary); }

/* ===== FAQ ===== */
.faq-section { padding: var(--space-section) 0; background: #fff; }
.faq-section .section-head { margin-bottom: 40px; }
.accordion {
  max-width: 860px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.accordion .accordion-item { border-bottom: 1px solid var(--border); }
.accordion .accordion-item:last-child { border-bottom: 0; }
.accordion .accordion-title {
  background: transparent;
  color: var(--text);
  border: 0 !important;
  padding: 20px 56px 20px 24px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  position: relative;
  cursor: pointer;
  transition: background .25s;
}
.accordion .accordion-title:hover { background: rgba(168,118,62,0.04); color: var(--primary-dark); }
.accordion .accordion-title::before,
.accordion .accordion-title::after {
  content: '';
  position: absolute;
  right: 24px;
  top: 50%;
  width: 14px;
  height: 2px;
  background: var(--primary);
  transform: translateY(-50%);
  transition: transform .3s ease;
}
.accordion .accordion-title::after { transform: translateY(-50%) rotate(90deg); }
.accordion .accordion-item.is-active > .accordion-title::after { transform: translateY(-50%) rotate(0deg); }
.accordion .accordion-item.is-active > .accordion-title { color: var(--primary-dark); }
.accordion .accordion-content { background: #fff; border: 0 !important; }
.accordion .accordion-content p {
  padding: 0 24px 24px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 760px;
}

/* ===== CTA Form ===== */
.cta-section { padding: var(--space-section) 0; background: var(--dark); position: relative; }
.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
}
.cta-info { color: #fff; padding-right: 20px; }
.cta-info h2 { font-size: 28px; font-weight: 700; margin-bottom: 16px; line-height: 1.4; }
.cta-info p { font-size: 15px; color: rgba(255,255,255,0.78); line-height: 1.8; margin-bottom: 24px; }
.cta-points { margin-top: 12px; }
.cta-points li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255,255,255,0.85); padding: 6px 0; }
.cta-points i { color: var(--primary-light); font-size: 16px; }
.contact-form-card {
  background: #fff;
  border-radius: 8px;
  padding: 32px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.2);
}
.contact-form-card label { font-size: 13px; font-weight: 700; color: var(--text); margin-bottom: 6px; display: block; }
.contact-form-card input,
.contact-form-card select,
.contact-form-card textarea {
  width: 100%;
  background: #fff;
  border: 1px solid #D8D3CA;
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  font-size: 14px;
  color: var(--text);
  margin-bottom: 16px;
  transition: border-color .25s, box-shadow .25s;
}
.contact-form-card input:focus,
.contact-form-card select:focus,
.contact-form-card textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(168,118,62,0.15);
}
.contact-form-card select { appearance: none; -webkit-appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236B6B63' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; }
.btn-gold {
  background: var(--primary);
  color: var(--dark);
  border: 0;
  border-radius: var(--radius-sm);
  padding: 14px 28px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: all .25s ease;
  display: inline-block;
  text-align: center;
}
.btn-gold:hover { background: var(--primary-light); color: var(--dark); transform: translateY(-2px); box-shadow: 0 6px 18px rgba(168,118,62,0.35); }
.btn-block { width: 100%; }
.form-status {
  display: none;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  margin-top: 4px;
  font-size: 14px;
  font-weight: 500;
}
.form-status.success { display: block; background: rgba(63,122,90,0.1); color: var(--success); border: 1px solid rgba(63,122,90,0.3); }
.form-status.error { display: block; background: rgba(190,60,60,0.08); color: #A23A3A; border: 1px solid rgba(190,60,60,0.3); }

/* ===== Footer ===== */
.site-footer { background: #1A1E1C; color: rgba(255,255,255,0.7); padding: 64px 0 0; font-size: 14px; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .brand-logo a { color: #fff; }
.footer-brand .brand-sub { color: var(--primary-light); }
.footer-desc { margin-top: 16px; font-size: 14px; line-height: 1.8; color: rgba(255,255,255,0.55); max-width: 360px; }
.footer-col h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 18px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: rgba(255,255,255,0.55); transition: color .25s; }
.footer-col ul li a:hover { color: var(--primary-light); }
.footer-bottom { padding: 20px 0; text-align: center; 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(--primary-light); }

/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .container { padding: 0 20px; }
  .solution-img img { height: 280px; }
  .solution-block { margin-bottom: 48px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 767px) {
  :root { --space-section: 56px; }
  .top-brand-row { flex-direction: column; align-items: flex-start; gap: 10px; }
  .header-tools { width: 100%; display: flex; flex-wrap: wrap; gap: 10px; }
  .search-box { width: 100%; order: 3; }
  .search-box:focus-within { width: 100%; }
  .hot-tags { order: 2; gap: 8px; font-size: 12px; }
  .btn-cta { order: 1; margin-left: auto; padding: 8px 14px; font-size: 13px; }
  .nav-toggle { display: block; order: 1; }
  .main-nav { display: none; }
  .main-nav.open { display: block; border-top: 1px solid var(--border); }
  .nav-list { flex-direction: column; gap: 0; padding-bottom: 12px; }
  .nav-list li a { border-bottom: 1px solid rgba(227,223,216,0.4); padding: 12px 0; font-size: 15px; }
  .nav-list li.active a { border-bottom-color: var(--primary); }
  .page-banner { padding: 64px 0 48px; }
  .page-banner h1 { font-size: 24px; }
  .banner-desc { font-size: 15px; }
  .btn-primary, .btn-outline-light { padding: 12px 22px; font-size: 14px; }
  .stat-card { padding: 22px 16px; }
  .stat-num { font-size: 26px; }
  .section-head h2 { font-size: 24px; }
  .solution-content { padding: 20px 0 0; }
  .solution-block.reverse > .cell:first-child { order: 1; }
  .solution-block.reverse > .cell:last-child { order: 2; }
  .solution-block { margin-bottom: 40px; }
  .solution-img img { height: 220px; }
  .step-num { font-size: 40px; }
  .compare-table th, .compare-table td { padding: 12px 10px; font-size: 13px; }
  .compare-table { min-width: 560px; }
  .table-wrap { overflow-x: auto; }
  .accordion .accordion-title { font-size: 15px; padding: 16px 46px 16px 16px; }
  .accordion .accordion-content p { padding: 0 16px 18px; font-size: 14px; }
  .cta-info { padding-right: 0; margin-bottom: 28px; }
  .contact-form-card { padding: 24px 20px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { padding: 16px 0; font-size: 12px; }
}

/* roulang page: category3 */
:root {
    --bg: #F5F3EF;
    --dark: #1F2321;
    --primary: #A8763E;
    --primary-dark: #87582A;
    --primary-light: #C79A5F;
    --text: #2A2A26;
    --text-weak: #6B6B63;
    --card: #FFFFFF;
    --line: #E3DFD8;
    --block: #EDEAE4;
    --success: #3F7A5A;
    --danger: #B4543E;
    --radius: 6px;
    --shadow: 0 2px 6px rgba(31,35,33,0.03);
    --shadow-hover: 0 6px 16px rgba(31,35,33,0.07);
    --transition: all 0.25s ease;
    --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  }

  * { box-sizing: border-box; }
  html, body { margin: 0; padding: 0; }
  body {
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.75;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
  }
  img { max-width: 100%; display: block; }
  a { color: inherit; text-decoration: none; transition: var(--transition); }
  a:hover { color: var(--primary); }
  ul { list-style: none; margin: 0; padding: 0; }
  button, input, select, textarea { font-family: inherit; font-size: inherit; color: inherit; }
  a:focus-visible, button:focus-visible, input:focus-visible {
    outline: 2px solid var(--primary-light);
    outline-offset: 2px;
  }

  .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
  .section { padding: 88px 0; }

  /* ============ 导航 ============ */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(245,243,239,0.96);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--line);
  }
  .site-header .container { padding-top: 10px; padding-bottom: 0; }
  .top-brand-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 10px 0;
  }
  .brand-logo a {
    font-size: 28px;
    font-weight: 800;
    color: var(--dark);
    letter-spacing: 1px;
  }
  .brand-logo a:hover { color: var(--primary); }
  .brand-sub {
    display: block;
    font-size: 11px;
    color: var(--text-weak);
    letter-spacing: 2px;
    margin-top: 2px;
  }
  .header-tools { display: flex; align-items: center; gap: 16px; }
  .search-box {
    position: relative;
    width: 200px;
    transition: width 0.3s ease;
  }
  .search-box:focus-within { width: 260px; }
  .search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-weak);
    font-size: 13px;
    pointer-events: none;
  }
  .search-box input {
    width: 100%;
    height: 36px;
    padding: 0 12px 0 34px;
    border: 1px solid #D8D3CA;
    border-radius: 4px;
    background: #fff;
    outline: none;
    transition: border-color 0.25s, box-shadow 0.25s;
  }
  .search-box input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(168,118,62,0.18);
  }
  .hot-tags a { font-size: 13px; color: var(--text-weak); margin-left: 10px; }
  .hot-tags a:hover { color: var(--primary); }
  .btn-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--dark);
    color: #fff;
    padding: 9px 18px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
  }
  .btn-cta:hover { background: var(--primary); color: #fff; }
  .nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 22px;
    color: var(--dark);
    cursor: pointer;
    padding: 4px;
  }
  .main-nav { border-top: 1px solid var(--line); }
  .nav-list { display: flex; }
  .nav-list li a {
    display: block;
    padding: 13px 22px;
    font-size: 16px;
    font-weight: 500;
    color: var(--text);
    border-bottom: 2px solid transparent;
  }
  .nav-list li a:hover { color: var(--primary); }
  .nav-list li.active a {
    color: var(--primary);
    border-bottom-color: var(--primary);
    font-weight: 700;
  }

  /* ============ 页头横幅 ============ */
  .page-banner {
    position: relative;
    background: var(--dark);
    color: #fff;
    padding: 76px 0 66px;
    overflow: hidden;
  }
  .banner-bg {
    position: absolute;
    inset: 0;
    background-position: center;
    background-size: cover;
    opacity: 0.38;
  }
  .page-banner .container { position: relative; z-index: 2; }
  .breadcrumb {
    font-size: 14px;
    color: rgba(255,255,255,0.72);
    margin-bottom: 20px;
  }
  .breadcrumb a { color: rgba(255,255,255,0.72); }
  .breadcrumb a:hover { color: var(--primary-light); }
  .breadcrumb span { margin: 0 10px; }
  .banner-tag {
    display: inline-block;
    font-size: 13px;
    letter-spacing: 2px;
    color: var(--primary-light);
    border: 1px solid var(--primary);
    padding: 4px 14px;
    border-radius: 20px;
    margin-bottom: 18px;
  }
  .page-banner h1 {
    font-size: 34px;
    font-weight: 800;
    margin: 0 0 14px;
    color: #fff;
    line-height: 1.4;
  }
  .banner-desc {
    font-size: 16px;
    color: rgba(255,255,255,0.86);
    max-width: 740px;
    line-height: 1.8;
    margin: 0;
  }

  /* ============ 板块标题 ============ */
  .section-head { text-align: left; margin-bottom: 36px; }
  .section-head.center { text-align: center; }
  .section-head h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text);
    margin: 0 0 10px;
    line-height: 1.4;
  }
  .gold-line { display: inline-block; width: 40px; height: 2px; background: var(--primary); }
  .gold-line.center { margin: 0 auto; }
  .section-head p { color: var(--text-weak); margin: 14px 0 0; }

  /* ============ 置顶大卡 ============ */
  .featured-section { background: #fff; border-bottom: 1px solid var(--line); }
  .featured-card {
    display: flex;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
  }
  .featured-card:hover {
    box-shadow: var(--shadow-hover);
    border-color: var(--primary);
  }
  .featured-media {
    position: relative;
    flex: 0 0 48%;
    min-height: 300px;
  }
  .featured-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .featured-media .badge {
    position: absolute;
    top: 14px;
    left: 14px;
    background: var(--primary);
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    padding: 3px 12px;
    border-radius: 20px;
  }
  .featured-content {
    flex: 1;
    padding: 34px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .featured-content .meta {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-bottom: 12px;
    flex-wrap: wrap;
  }
  .cat-tag {
    display: inline-block;
    font-size: 12px;
    color: var(--primary);
    border: 1px solid var(--primary-light);
    padding: 2px 9px;
    border-radius: 3px;
  }
  .date { font-size: 12px; color: var(--text-weak); }
  .featured-content h3 {
    font-size: 24px;
    font-weight: 700;
    margin: 0 0 14px;
    line-height: 1.45;
  }
  .featured-content p {
    color: var(--text-weak);
    font-size: 15px;
    line-height: 1.8;
    margin: 0 0 22px;
  }
  .btn-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--primary);
  }
  .btn-more:hover { color: var(--primary-dark); gap: 12px; }

  /* ============ 时间线 ============ */
  .timeline-section { background: var(--bg); }
  .timeline { max-width: 920px; margin: 0 auto; }
  .timeline-item {
    position: relative;
    padding-left: 70px;
    margin-bottom: 40px;
    scroll-margin-top: 120px;
  }
  .timeline-item::before {
    content: "";
    position: absolute;
    left: 36px;
    top: 8px;
    bottom: -40px;
    width: 2px;
    background: var(--primary-light);
    opacity: 0.4;
  }
  .timeline-item:last-child::before { display: none; }
  .timeline-year {
    position: absolute;
    left: 0;
    top: 6px;
    width: 70px;
    text-align: right;
    font-weight: 800;
    font-size: 20px;
    color: var(--primary);
    line-height: 1.2;
  }
  .timeline-dot {
    position: absolute;
    left: 28px;
    top: 12px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #fff;
    border: 3px solid var(--primary);
    box-shadow: 0 0 0 4px rgba(168,118,62,0.18);
    z-index: 2;
  }
  .timeline-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 24px 28px;
    box-shadow: var(--shadow);
    transition: var(--transition);
  }
  .timeline-card:hover {
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-light);
    transform: translateY(-2px);
  }
  .timeline-top {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
    flex-wrap: wrap;
  }
  .tl-date {
    font-size: 12px;
    color: var(--text-weak);
    background: var(--block);
    padding: 3px 10px;
    border-radius: 20px;
  }
  .timeline-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin: 0 0 8px;
    line-height: 1.5;
  }
  .timeline-card p {
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.8;
    margin: 0 0 14px;
  }
  .read-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
  }
  .read-link:hover { color: var(--primary-dark); }

  /* ============ 数据区 ============ */
  .stats-section { background: var(--dark); color: #fff; }
  .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
  .stat-item {
    text-align: center;
    border-right: 1px solid rgba(255,255,255,0.14);
    padding: 18px 12px;
  }
  .stat-item:last-child { border-right: none; }
  .stat-num {
    font-size: 42px;
    font-weight: 800;
    color: var(--primary-light);
    font-variant-numeric: tabular-nums;
    line-height: 1.2;
  }
  .stat-unit { font-size: 14px; color: rgba(255,255,255,0.6); margin-left: 6px; }
  .stat-item p { margin: 12px 0 0; font-size: 14px; color: rgba(255,255,255,0.82); }

  /* ============ FAQ ============ */
  .faq-section { background: var(--block); }
  .container.narrow { max-width: 900px; }
  .accordion { background: transparent; }
  .accordion-item {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 6px;
    margin-bottom: 12px;
    overflow: hidden;
    transition: var(--transition);
  }
  .accordion-item.is-active { border-color: var(--primary-light); }
  .accordion-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    padding: 16px 20px;
    margin: 0;
    cursor: pointer;
    background: #fff;
    border: none;
    border-bottom: 1px solid transparent;
  }
  .accordion-title:hover { color: var(--primary); }
  .accordion-title:after {
    content: "+";
    font-size: 22px;
    font-weight: 400;
    color: var(--primary);
    width: 22px;
    text-align: center;
    line-height: 1;
    transition: transform 0.3s;
  }
  .accordion-item.is-active .accordion-title:after { content: "−"; }
  .accordion-content {
    background: #fff;
    border-top: 1px solid var(--line);
    padding: 16px 22px;
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.8;
  }

  /* ============ CTA ============ */
  .cta-band {
    background: linear-gradient(135deg, #1F2321, #272C29);
    border-top: 2px solid var(--primary);
    color: #fff;
    padding: 76px 0;
  }
  .cta-inner { text-align: center; max-width: 680px; margin: 0 auto; }
  .cta-inner h2 {
    font-size: 26px;
    font-weight: 700;
    margin: 0 0 16px;
    color: #fff;
    line-height: 1.5;
  }
  .cta-inner p {
    font-size: 15px;
    color: rgba(255,255,255,0.74);
    margin: 0 0 28px;
  }
  .btn-gold {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary);
    color: var(--dark);
    padding: 13px 32px;
    border: none;
    border-radius: 4px;
    font-weight: 700;
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition);
  }
  .btn-gold:hover {
    background: var(--primary-light);
    color: var(--dark);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(168,118,62,0.3);
  }

  /* ============ 页脚 ============ */
  .site-footer {
    background: #191D1A;
    color: rgba(255,255,255,0.72);
    padding: 56px 0 24px;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 36px;
  }
  .site-footer .brand-logo a { color: #fff; font-size: 26px; }
  .site-footer .brand-logo a:hover { color: var(--primary-light); }
  .site-footer .brand-sub { color: rgba(255,255,255,0.45); }
  .footer-desc {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    line-height: 1.8;
    margin: 16px 0 0;
    max-width: 340px;
  }
  .footer-col h4 {
    color: #fff;
    font-size: 16px;
    margin-bottom: 14px;
    font-weight: 600;
  }
  .footer-col li { margin-bottom: 10px; }
  .footer-col a { font-size: 14px; color: rgba(255,255,255,0.6); }
  .footer-col a:hover { color: var(--primary-light); }
  .footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.12);
    padding-top: 20px;
    text-align: center;
    font-size: 13px;
    color: rgba(255,255,255,0.5);
  }
  .footer-bottom a { color: rgba(255,255,255,0.6); }
  .footer-bottom a:hover { color: var(--primary-light); }

  /* ============ 响应式 ============ */
  @media (max-width: 1024px) {
    .hot-tags, .search-box { display: none; }
    .nav-list li a { padding: 12px 18px; font-size: 15px; }
    .section { padding: 64px 0; }
  }
  @media (max-width: 767px) {
    .section { padding: 48px 0; }
    .nav-toggle { display: block; }
    .nav-list {
      display: none;
      flex-direction: column;
      background: #fff;
      border-top: 1px solid var(--line);
    }
    .nav-list.open { display: flex; }
    .nav-list li a {
      padding: 14px 20px;
      border-bottom: 1px solid var(--line);
      border-left: 3px solid transparent;
    }
    .nav-list li.active a { border-left-color: var(--primary); }
    .header-tools { gap: 10px; }
    .brand-logo a { font-size: 23px; }
    .page-banner { padding: 56px 0 48px; }
    .page-banner h1 { font-size: 24px; }
    .banner-desc { font-size: 15px; }
    .featured-card { flex-direction: column; }
    .featured-media { min-height: 220px; }
    .featured-content { padding: 24px; }
    .featured-content h3 { font-size: 20px; }
    .stats-grid { grid-template-columns: 1fr 1fr; row-gap: 30px; }
    .stat-item { border-right: none; border-bottom: 1px solid rgba(255,255,255,0.1); }
    .timeline-item { padding-left: 50px; }
    .timeline-item::before { left: 16px; }
    .timeline-dot { left: 8px; width: 16px; height: 16px; top: 10px; }
    .timeline-year { font-size: 14px; width: 44px; }
    .timeline-card { padding: 18px 16px; }
    .timeline-card h3 { font-size: 17px; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .cta-inner h2 { font-size: 22px; }
    .section-head h2 { font-size: 24px; }
  }