/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --primary: #0E4F4A;
  --primary-light: #176B63;
  --accent: #FF7A45;
  --accent-light: #FFA07A;
  --signal: #E8B04B;
  --background: #F7F4EE;
  --dark: #122725;
  --text: #1A2E2A;
  --text-secondary: #5D6F6B;
  --text-muted: #8A9A96;
  --border: #E0E6E2;
  --input-border: #C6D0CC;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-tag: 4px;
  --shadow: 0 4px 12px rgba(14,79,74,0.08);
  --shadow-hover: 0 8px 24px rgba(14,79,74,0.12);
  --section-gap: 76px;
  --container-max: 1200px;
  --font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-family);
  font-size: 17px;
  line-height: 1.8;
  color: var(--text);
  background: var(--background);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--accent); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; }
h1, h2, h3, h4, h5 { color: var(--primary); line-height: 1.3; font-weight: 700; }
h1 { font-size: 44px; }
h2 { font-size: 34px; }
h3 { font-size: 24px; }
h4 { font-size: 18px; }
p { margin-bottom: 1rem; }

/* ===== 容器 ===== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
}
.section { padding: var(--section-gap) 0; }
.section-tight { padding: 48px 0; }

/* ===== 导航 ===== */
.site-header {
  background: var(--primary);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 20px rgba(0,0,0,0.18);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
  height: 72px;
  gap: 16px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--accent), var(--signal));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: #fff;
}
.logo-text {
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.main-nav { display: flex; }
.nav-list {
  display: flex;
  gap: 4px;
  margin: 0;
}
.nav-list > li { position: relative; }
.nav-list > li > a {
  display: block;
  color: rgba(255,255,255,0.85);
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 500;
  border-radius: 8px;
  transition: all 0.2s;
  position: relative;
}
.nav-list > li > a:hover {
  color: #fff;
  background: rgba(255,255,255,0.1);
}
.nav-list > li.active > a { color: #fff; }
.nav-list > li.active > a::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 18px;
  right: 18px;
  height: 3px;
  background: var(--accent);
  border-radius: 3px;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Mega Menu */
.mega-wrap { position: relative; }
.mega-trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.12);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.2);
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}
.mega-trigger:hover {
  background: rgba(255,255,255,0.22);
  border-color: rgba(255,255,255,0.35);
}
.mega-trigger .arrow { transition: transform 0.3s; font-size: 12px; }
.mega-wrap:hover .mega-trigger .arrow { transform: rotate(180deg); }
.mega-panel {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  width: 560px;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.18);
  border: 1px solid var(--border);
  padding: 28px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all 0.3s;
  z-index: 100;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.mega-col h4 {
  font-size: 15px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}
.mega-col a {
  display: block;
  padding: 8px 0;
  color: var(--text);
  font-size: 15px;
  font-weight: 500;
  border-bottom: 1px solid #f0f4f2;
  transition: all 0.2s;
}
.mega-col a:hover {
  color: var(--accent);
  padding-left: 6px;
}
.mega-cta {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, rgba(14,79,74,0.06), rgba(255,122,69,0.08));
  border-radius: 12px;
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.mega-cta p {
  font-size: 15px;
  color: var(--primary);
  font-weight: 600;
  margin: 0;
  line-height: 1.5;
}
.mega-cta .btn { white-space: nowrap; }

/* 汉堡按钮 */
.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  width: 44px;
  height: 44px;
  color: #fff;
  font-size: 28px;
  cursor: pointer;
  border-radius: 8px;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}
.nav-toggle:hover { background: rgba(255,255,255,0.1); }

/* 移动端抽屉 */
.mobile-drawer {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--primary);
  z-index: 2000;
  padding: 24px;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.35s;
}
.mobile-drawer.open { transform: translateX(0); }
.drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
}
.drawer-close {
  background: rgba(255,255,255,0.1);
  border: none;
  color: #fff;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  font-size: 20px;
}
.drawer-nav a {
  display: block;
  color: rgba(255,255,255,0.9);
  font-size: 22px;
  padding: 16px 12px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  font-weight: 500;
}
.drawer-nav a:hover { color: var(--accent); }
.drawer-cta {
  margin-top: 32px;
  display: flex;
  gap: 12px;
}
.drawer-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 1999;
}
.drawer-overlay.show { display: block; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 700;
  border: none;
  transition: all 0.25s;
  text-decoration: none;
  cursor: pointer;
  line-height: 48px;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 14px rgba(255,122,69,0.35);
}
.btn-primary:hover {
  background: #FF8F5E;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255,122,69,0.45);
}
.btn-outline-white {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.8);
}
.btn-outline-white:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.btn-primary-dark {
  background: var(--primary);
  color: #fff;
}
.btn-primary-dark:hover {
  background: var(--primary-light);
  color: #fff;
  transform: translateY(-2px);
}
.btn:focus-visible {
  outline: 3px solid rgba(255,122,69,0.4);
  outline-offset: 2px;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  background: var(--primary);
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(14,79,74,0.88) 30%, rgba(14,79,74,0.65));
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  padding: 80px 0;
}
.hero-eyebrow {
  display: inline-block;
  background: rgba(255,122,69,0.15);
  border: 1px solid rgba(255,122,69,0.4);
  color: #FFD9C9;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 40px;
  letter-spacing: 1px;
  margin-bottom: 20px;
}
.hero-title {
  font-size: 50px;
  font-weight: 800;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 4px;
}
.hero-title .accent {
  color: var(--accent);
  display: block;
  font-size: 56px;
  margin-top: 4px;
}
.hero-divider {
  width: 64px;
  height: 4px;
  background: var(--accent);
  border-radius: 4px;
  margin: 24px 0;
}
.hero-subtitle {
  font-size: 18px;
  color: rgba(255,255,255,0.85);
  margin-bottom: 32px;
  line-height: 1.7;
  max-width: 480px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-scroll {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  transition: color 0.2s;
}
.hero-scroll:hover { color: #fff; }
.hero-scroll .icon { font-size: 22px; animation: bounce 2s infinite; }
@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* ===== 品牌故事 ===== */
.brand-story {
  background: var(--background);
  padding: 80px 0;
}
.brand-story-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}
.brand-story-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.brand-story h2 {
  margin-bottom: 20px;
}
.brand-story-lead {
  font-size: 17px;
  color: var(--text-secondary);
  margin-bottom: 28px;
  line-height: 1.8;
}
.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 10px 0;
}
.feature-icon {
  width: 40px;
  height: 40px;
  background: rgba(14,79,74,0.08);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--primary);
  flex-shrink: 0;
  border: 1px solid rgba(14,79,74,0.1);
}
.feature-text h4 { font-size: 17px; margin-bottom: 2px; }
.feature-text p { font-size: 14px; color: var(--text-secondary); margin: 0; line-height: 1.5; }
.brand-story-media {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  position: relative;
}
.brand-story-media img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: var(--radius);
}
.brand-story-media::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.2);
  pointer-events: none;
}

/* ===== 资讯区 ===== */
.news-section {
  background: #fff;
  padding: 80px 0;
}
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 12px;
}
.section-header h2 { margin-bottom: 8px; }
.section-sub {
  color: var(--text-secondary);
  font-size: 15px;
  margin: 0;
}
.news-grid-large {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 24px;
  margin-bottom: 24px;
}
.news-card-large {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all 0.3s;
  box-shadow: var(--shadow);
  position: relative;
}
.news-card-large:hover {
  box-shadow: var(--shadow-hover);
  border-color: rgba(255,122,69,0.5);
  transform: translateY(-4px);
}
.news-card-large .news-media {
  height: 240px;
  overflow: hidden;
}
.news-card-large .news-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}
.news-card-large:hover .news-media img { transform: scale(1.05); }
.news-card-large .news-body { padding: 28px; flex: 1; display: flex; flex-direction: column; }
.news-card-large h3 { font-size: 22px; margin: 12px 0; line-height: 1.4; }
.news-card-large h3 a { color: var(--text); }
.news-card-large h3 a:hover { color: var(--accent); }
.news-card-large .news-excerpt { color: var(--text-secondary); font-size: 15px; flex: 1; }
.news-card-large .news-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 14px;
  color: var(--text-muted);
}
.read-more {
  font-weight: 600;
  color: var(--primary);
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.read-more:hover { color: var(--accent); }
.read-more::after { content: '→'; transition: transform 0.2s; }
.read-more:hover::after { transform: translateX(4px); }

.news-card-stack {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
.news-card-small {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.3s;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}
.news-card-small:hover {
  box-shadow: var(--shadow-hover);
  border-color: rgba(255,122,69,0.4);
  transform: translateY(-3px);
}
.news-card-small .news-media { height: 140px; overflow: hidden; }
.news-card-small .news-media img { width: 100%; height: 100%; object-fit: cover; }
.news-card-small .news-body { padding: 18px; flex: 1; display: flex; flex-direction: column; }
.news-card-small h4 { font-size: 16px; line-height: 1.4; margin: 8px 0; }
.news-card-small h4 a { color: var(--text); }
.news-card-small h4 a:hover { color: var(--accent); }
.news-card-small .news-excerpt {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card-small .news-date {
  font-size: 12px;
  color: var(--text-muted);
  border-top: 1px solid #f0f4f2;
  padding-top: 10px;
}

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

/* Tag */
.tag {
  display: inline-block;
  background: #FFE8DC;
  color: #C2501D;
  font-size: 13px;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: var(--radius-tag);
  align-self: flex-start;
}

/* 空状态 */
.empty-state {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 60px 20px;
  text-align: center;
  background: #FAFAF7;
  max-width: 600px;
  margin: 0 auto;
}
.empty-state-icon { font-size: 44px; margin-bottom: 16px; opacity: 0.6; }
.empty-state p { color: var(--text-muted); font-size: 16px; margin: 0; }

/* ===== 信任背书 ===== */
.trust-section {
  background: var(--dark);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.trust-section::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(255,122,69,0.15) 0%, transparent 70%);
}
.trust-section h2 { color: #fff; text-align: center; margin-bottom: 12px; }
.trust-sub {
  text-align: center;
  color: rgba(255,255,255,0.6);
  font-size: 16px;
  margin-bottom: 50px;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-bottom: 48px;
}
.stat-item {
  text-align: center;
  padding: 32px 16px;
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.06);
  transition: all 0.3s;
}
.stat-item:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,122,69,0.3);
  transform: translateY(-4px);
}
.stat-number {
  font-size: 42px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
  margin-bottom: 8px;
}
.stat-label { color: rgba(255,255,255,0.7); font-size: 14px; }
.testimonial-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}
.testimonial-card {
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid rgba(255,255,255,0.08);
}
.testimonial-card .quote {
  color: rgba(255,255,255,0.85);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 16px;
}
.testimonial-card .author {
  color: rgba(255,255,255,0.5);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.testimonial-card .author::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--signal);
  border-radius: 50%;
}
.stars {
  color: var(--signal);
  letter-spacing: 2px;
  font-size: 14px;
  margin-bottom: 8px;
}

/* ===== FAQ ===== */
.faq-section {
  background: #EDF4F2;
  padding: 80px 0;
}
.faq-section h2 { text-align: center; margin-bottom: 40px; }
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  background: #fff;
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all 0.25s;
}
.faq-item.active {
  border-color: rgba(255,122,69,0.5);
  box-shadow: var(--shadow);
}
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  cursor: pointer;
  font-weight: 600;
  font-size: 16px;
  color: var(--text);
  transition: color 0.2s;
  gap: 16px;
}
.faq-question:hover { color: var(--primary); }
.faq-icon {
  width: 32px;
  height: 32px;
  background: rgba(14,79,74,0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--primary);
  flex-shrink: 0;
  transition: all 0.3s;
}
.faq-item.active .faq-icon {
  background: var(--accent);
  color: #fff;
  transform: rotate(45deg);
}
.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s, padding 0.35s;
}
.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 24px 24px;
}
.faq-answer p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
  margin: 0;
}

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(135deg, var(--primary), #0A3733);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.cta-section::after {
  content: '';
  position: absolute;
  bottom: -40px;
  left: 10%;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(232,176,75,0.12) 0%, transparent 70%);
}
.cta-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}
.cta-inner h2 {
  color: #fff;
  font-size: 36px;
  margin-bottom: 12px;
}
.cta-sub {
  color: rgba(255,255,255,0.7);
  font-size: 16px;
  margin-bottom: 32px;
}
.cta-form {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.cta-form input[type="email"] {
  flex: 1;
  min-width: 260px;
  max-width: 380px;
  height: 50px;
  padding: 0 20px;
  border-radius: var(--radius-sm);
  border: 2px solid rgba(255,255,255,0.3);
  background: rgba(255,255,255,0.1);
  color: #fff;
  font-size: 15px;
  transition: all 0.3s;
  outline: none;
}
.cta-form input[type="email"]::placeholder { color: rgba(255,255,255,0.5); }
.cta-form input[type="email"]:focus {
  border-color: var(--accent);
  background: rgba(255,255,255,0.18);
  box-shadow: 0 0 0 4px rgba(255,122,69,0.2);
}
.cta-note {
  color: rgba(255,255,255,0.5);
  font-size: 13px;
  margin-top: 20px;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.65);
  padding-top: 64px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.footer-logo .logo-icon {
  width: 34px;
  height: 34px;
  font-size: 18px;
}
.footer-logo span {
  color: #fff;
  font-size: 18px;
  font-weight: 700;
}
.footer-about {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,0.5);
}
.footer-grid h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 16px;
}
.footer-grid ul li { margin-bottom: 10px; }
.footer-grid ul a {
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  transition: all 0.2s;
}
.footer-grid ul a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  margin-bottom: 12px;
}
.footer-contact .icon {
  width: 30px;
  height: 30px;
  background: rgba(255,255,255,0.08);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--accent);
  flex-shrink: 0;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  font-size: 13px;
  text-align: center;
  color: rgba(255,255,255,0.4);
}
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: var(--accent); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .main-nav { display: none; }
  .mega-wrap { display: none; }
  .nav-toggle { display: flex; }
  .brand-story-grid { grid-template-columns: 1fr; gap: 40px; }
  .brand-story-media img { height: 340px; }
  .news-grid-large { grid-template-columns: 1fr; }
  .news-card-large .news-media { height: 220px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-title { font-size: 44px; }
  .hero-title .accent { font-size: 48px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .section { padding: 48px 0; }
  .brand-story { padding: 48px 0; }
  .news-section { padding: 48px 0; }
  .trust-section { padding: 48px 0; }
  .faq-section { padding: 48px 0; }
  .cta-section { padding: 48px 0; }
  .site-footer { padding-top: 40px; }
  .hero { min-height: 540px; }
  .hero-content { padding: 60px 0; }
  .hero-title { font-size: 32px; }
  .hero-title .accent { font-size: 38px; }
  .hero-subtitle { font-size: 15px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .section-header { flex-direction: column; align-items: flex-start; }
  .news-grid-bottom { grid-template-columns: 1fr; }
  .news-card-stack { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .stat-number { font-size: 32px; }
  .testimonial-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .cta-form { flex-direction: column; }
  .cta-form input[type="email"] { max-width: 100%; }
  .cta-form .btn { width: 100%; }
  .mega-panel { width: calc(100vw - 40px); }
  .logo-text { font-size: 17px; }
  .logo-icon { width: 34px; height: 34px; font-size: 17px; }
}

@media (max-width: 375px) {
  .container { padding: 0 16px; }
  .logo-text { font-size: 15px; }
  .hero-title .accent { font-size: 34px; }
  .stat-item { padding: 20px 12px; }
  .stat-number { font-size: 26px; }
  .faq-question { padding: 16px; font-size: 15px; }
  .faq-answer { padding: 0 16px; }
  .faq-item.active .faq-answer { padding: 0 16px 18px; }
}

/* roulang page: article */
:root {
            --primary: #0E4F4A;
            --primary-dark: #0A3935;
            --accent: #FF7A45;
            --accent-light: #FFE8DC;
            --signal: #E8B04B;
            --bg: #F7F4EE;
            --dark: #122725;
            --text: #1A2E2A;
            --text-secondary: #5D6F6B;
            --text-muted: #8A9A96;
            --border: #E0E6E2;
            --input-border: #C6D0CC;
            --white: #FFFFFF;
            --light-green: #EDF4F2;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow: 0 4px 12px rgba(14, 79, 74, 0.08);
            --shadow-hover: 0 8px 24px rgba(14, 79, 74, 0.14);
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        ul,
        ol {
            list-style: none;
        }

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            background: var(--primary);
            position: sticky;
            top: 0;
            z-index: 999;
            box-shadow: 0 2px 16px rgba(14, 79, 74, 0.25);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

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

        .logo-icon {
            font-size: 28px;
            line-height: 1;
            filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
        }

        .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .main-nav {
            flex: 1;
            display: flex;
            justify-content: center;
        }

        .nav-list {
            display: flex;
            gap: 4px;
        }

        .nav-list li a {
            display: block;
            padding: 10px 18px;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.85);
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }

        .nav-list li a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.12);
        }

        .nav-list li.active a {
            color: #fff;
            background: rgba(255, 255, 255, 0.14);
        }

        .nav-list li.active a::after {
            content: "";
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 22px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .mega-trigger {
            position: relative;
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.25);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .mega-trigger:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: var(--accent);
        }

        .mega-panel {
            position: absolute;
            top: calc(100% + 16px);
            right: 0;
            width: 480px;
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: 0 20px 40px rgba(14, 79, 74, 0.18);
            padding: 24px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(12px);
            transition: var(--transition);
            z-index: 1000;
        }

        .mega-trigger:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .mega-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .mega-grid h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-secondary);
            margin-bottom: 12px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .mega-grid ul li {
            margin-bottom: 8px;
        }

        .mega-grid ul li a {
            color: var(--text);
            font-size: 14px;
            padding: 6px 0;
            display: block;
            transition: var(--transition);
        }

        .mega-grid ul li a:hover {
            color: var(--accent);
            padding-left: 6px;
        }

        .mega-cta {
            margin-top: 20px;
            background: var(--light-green);
            border-radius: var(--radius-sm);
            padding: 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            border: 1px solid var(--border);
        }

        .mega-cta span {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }

        .mega-cta .btn-small {
            background: var(--accent);
            color: #fff;
            padding: 8px 16px;
            border-radius: 6px;
            font-size: 13px;
            font-weight: 600;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .mega-cta .btn-small:hover {
            background: var(--primary);
            color: #fff;
        }

        .mobile-toggle {
            display: none;
            background: none;
            color: #fff;
            font-size: 24px;
            cursor: pointer;
            padding: 8px;
        }

        .mobile-toggle:focus {
            outline: 2px solid var(--accent);
            border-radius: 4px;
        }

        /* ===== Article Banner ===== */
        .article-banner {
            position: relative;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            padding: 80px 0 64px;
            overflow: hidden;
        }

        .article-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(14, 79, 74, 0.84);
            z-index: 1;
        }

        .article-banner::after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(135deg, transparent 50%, var(--bg) 50%);
            z-index: 2;
            opacity: 0.9;
        }

        .article-banner .container {
            position: relative;
            z-index: 3;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 28px;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
        }

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

        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.4);
        }

        .breadcrumb .current {
            color: var(--accent);
            font-weight: 500;
            max-width: 180px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .article-head-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 20px;
        }

        .article-label {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 4px;
        }

        .article-date {
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
        }

        .article-date i {
            margin-right: 4px;
        }

        .article-banner h1 {
            color: #fff;
            font-size: 42px;
            line-height: 1.25;
            font-weight: 800;
            max-width: 800px;
            margin-bottom: 12px;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
        }

        .article-banner .banner-line {
            width: 64px;
            height: 4px;
            border-radius: 4px;
            background: var(--accent);
            margin-top: 8px;
        }

        /* ===== Article Main ===== */
        .article-main {
            padding: 56px 0 24px;
        }

        .article-wrap {
            max-width: 760px;
            margin: 0 auto;
            background: var(--white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            padding: 48px 52px;
        }

        .article-content {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text);
            word-wrap: break-word;
        }

        .article-content p {
            margin-bottom: 20px;
        }

        .article-content h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            margin: 36px 0 14px;
            line-height: 1.4;
        }

        .article-content h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            margin: 28px 0 12px;
            line-height: 1.45;
        }

        .article-content h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin: 24px 0 10px;
        }

        .article-content img {
            border-radius: var(--radius);
            margin: 24px 0;
            box-shadow: 0 4px 16px rgba(14, 79, 74, 0.12);
        }

        .article-content blockquote {
            border-left: 4px solid var(--accent);
            background: var(--light-green);
            padding: 16px 20px;
            margin: 24px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: normal;
        }

        .article-content blockquote p:last-child {
            margin-bottom: 0;
        }

        .article-content ul,
        .article-content ol {
            margin: 0 0 20px 20px;
            padding-left: 16px;
        }

        .article-content ul {
            list-style: disc;
        }

        .article-content ol {
            list-style: decimal;
        }

        .article-content ul li,
        .article-content ol li {
            margin-bottom: 8px;
            line-height: 1.8;
        }

        .article-content a {
            color: var(--accent);
            font-weight: 500;
        }

        .article-content a:hover {
            color: var(--primary);
            text-decoration: underline;
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            border-radius: 8px;
            overflow: hidden;
        }

        .article-content table th {
            background: var(--primary);
            color: #fff;
            padding: 10px 16px;
            text-align: left;
            font-weight: 600;
        }

        .article-content table td {
            border: 1px solid var(--border);
            padding: 10px 16px;
            background: #fff;
        }

        .article-content code {
            background: var(--light-green);
            padding: 2px 8px;
            border-radius: 4px;
            font-family: "SFMono-Regular", Consolas, monospace;
            font-size: 14px;
        }

        .article-empty {
            text-align: center;
            padding: 60px 0;
        }

        .article-empty i {
            font-size: 48px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .article-empty h2 {
            font-size: 24px;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .article-empty p {
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        .article-tags {
            max-width: 760px;
            margin: 24px auto 0;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .article-tags .tag {
            background: var(--accent-light);
            color: #C2501D;
            font-size: 13px;
            padding: 6px 14px;
            border-radius: 4px;
            font-weight: 500;
            transition: var(--transition);
        }

        .article-tags .tag:hover {
            background: var(--accent);
            color: #fff;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 600;
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            line-height: 1.4;
            min-height: 48px;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .btn-primary:hover {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 122, 69, 0.3);
        }

        .btn-outline {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.8);
        }

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

        .btn-accent {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }

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

        .btn:focus-visible {
            outline: 3px solid rgba(255, 122, 69, 0.5);
            outline-offset: 2px;
        }

        .btn:active {
            transform: translateY(0) scale(0.98);
        }

        /* ===== Related Section ===== */
        .related-section {
            padding: 64px 0;
        }

        .section-head {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-head h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            position: relative;
            display: inline-block;
            padding-bottom: 12px;
        }

        .section-head h2::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 48px;
            height: 4px;
            border-radius: 4px;
            background: var(--accent);
        }

        .section-head p {
            color: var(--text-secondary);
            font-size: 16px;
            margin-top: 14px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .card {
            background: var(--white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .card:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(255, 122, 69, 0.6);
            transform: translateY(-4px);
        }

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

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

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

        .card-body {
            padding: 20px 24px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .card-label {
            display: inline-block;
            background: var(--accent-light);
            color: #C2501D;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 4px;
            margin-bottom: 12px;
            align-self: flex-start;
        }

        .card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 10px;
            flex: 1;
        }

        .card-title a {
            color: var(--text);
        }

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

        .card-excerpt {
            font-size: 14px;
            line-height: 1.6;
            color: var(--text-secondary);
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

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

        .card-link:hover {
            color: var(--accent);
            gap: 10px;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            border-top: 1px solid var(--border);
            padding-top: 14px;
            margin-top: auto;
        }

        .related-empty {
            text-align: center;
            padding: 40px;
            background: var(--white);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--light-green);
            padding: 72px 0;
        }

        .accordion-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .custom-accordion {
            background: transparent;
            border: none;
            width: 100%;
        }

        .custom-accordion .accordion-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 16px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(14, 79, 74, 0.04);
            transition: var(--transition);
        }

        .custom-accordion .accordion-item:hover {
            border-color: rgba(255, 122, 69, 0.5);
        }

        .custom-accordion .accordion-title {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            background: transparent;
            transition: var(--transition);
            position: relative;
        }

        .custom-accordion .accordion-title:hover {
            background: rgba(14, 79, 74, 0.03);
            color: var(--primary);
        }

        .custom-accordion .accordion-title::before {
            content: "+";
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--light-green);
            color: var(--primary);
            font-size: 20px;
            font-weight: 700;
            flex-shrink: 0;
            transition: var(--transition);
        }

        .custom-accordion .accordion-item.is-active .accordion-title::before {
            content: "×";
            background: var(--accent);
            color: #fff;
            transform: rotate(45deg);
        }

        .custom-accordion .accordion-content {
            padding: 0 24px 20px 64px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
            background: transparent;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: var(--dark);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -40px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(255, 122, 69, 0.15) 0%, transparent 70%);
            border-radius: 50%;
        }

        .cta-inner {
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }

        .cta-inner h2 {
            color: #fff;
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            margin-bottom: 28px;
        }

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

        .cta-note {
            margin-top: 16px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #122725;
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-about {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 16px;
        }

        .site-footer h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 8px;
        }

        .site-footer h4::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }

        .site-footer ul li {
            margin-bottom: 8px;
            font-size: 14px;
        }

        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.65);
            transition: var(--transition);
        }

        .site-footer ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-contact .icon {
            color: var(--accent);
            font-size: 14px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 16px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== Responsive ===== */
        @media screen and (max-width: 1024px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }

            .related-grid .card:last-child {
                grid-column: span 2;
            }

            .related-grid .card:last-child .card-media {
                height: 160px;
            }

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

        @media screen and (max-width: 768px) {
            .header-inner {
                height: 64px;
            }

            .main-nav {
                display: none;
            }

            .mega-trigger {
                display: none;
            }

            .mobile-toggle {
                display: block;
            }

            .mobile-nav {
                display: block;
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--primary);
                padding: 16px 24px 24px;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
                z-index: 998;
            }

            .mobile-nav .nav-list {
                flex-direction: column;
                gap: 0;
            }

            .mobile-nav .nav-list li a {
                padding: 14px 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                font-size: 16px;
                border-radius: 0;
            }

            .mobile-nav .nav-list li.active a {
                background: none;
                color: var(--accent);
            }

            .mobile-nav .nav-list li.active a::after {
                display: none;
            }

            .article-banner {
                padding: 48px 0 40px;
            }

            .article-banner h1 {
                font-size: 30px;
            }

            .article-wrap {
                padding: 32px 24px;
                border-radius: var(--radius-sm);
            }

            .article-content {
                font-size: 16px;
            }

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

            .related-grid .card:last-child {
                grid-column: auto;
            }

            .related-grid .card:last-child .card-media {
                height: 200px;
            }

            .cta-inner h2 {
                font-size: 26px;
            }

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

        @media screen and (max-width: 520px) {
            .logo-text {
                font-size: 17px;
            }

            .article-banner h1 {
                font-size: 24px;
            }

            .article-wrap {
                padding: 24px 16px;
            }

            .article-content h2 {
                font-size: 22px;
            }

            .article-content h3 {
                font-size: 19px;
            }

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

        @media screen and (min-width: 769px) {
            .mobile-nav {
                display: none !important;
            }
        }

/* roulang page: category1 */
:root {
  --primary: #0E4F4A;
  --primary-dark: #0A3F3B;
  --primary-light: #E7F1EF;
  --accent: #FF7A45;
  --accent-dark: #E55D2B;
  --accent-light: #FFE8DC;
  --signal: #E8B04B;
  --bg: #F7F4EE;
  --dark: #122725;
  --text: #1A2E2A;
  --text-secondary: #5D6F6B;
  --text-muted: #8A9A96;
  --border: #E0E6E2;
  --white: #FFFFFF;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 12px rgba(14,79,74,0.08);
  --shadow-hover: 0 8px 24px rgba(14,79,74,0.12);
  --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --container: 1200px;
  --space: 72px;
}

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

html {
  scroll-behavior: smooth;
}

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

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.25s ease;
}

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

ul {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(255,122,69,0.45);
  outline-offset: 2px;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== Header ===== */
.site-header {
  background: var(--primary);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 4px 16px rgba(14,79,74,0.18);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  flex-shrink: 0;
  transition: opacity 0.25s ease;
}

.brand:hover {
  color: #fff;
  opacity: 0.9;
}

.logo-icon {
  font-size: 26px;
  line-height: 1;
}

.main-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-list a {
  display: block;
  padding: 10px 16px;
  color: rgba(255,255,255,0.85);
  font-weight: 500;
  border-radius: 8px;
  white-space: nowrap;
  transition: all 0.25s ease;
}

.nav-list a:hover {
  color: #fff;
  background: rgba(255,255,255,0.12);
}

.nav-list li.active a {
  color: #fff;
  background: rgba(255,255,255,0.15);
  box-shadow: inset 0 -3px 0 var(--accent);
}

.nav-toggle {
  display: none;
  color: #fff;
  font-size: 24px;
  padding: 8px 12px;
  border-radius: 8px;
  align-items: center;
  justify-content: center;
  transition: background 0.25s ease;
}

.nav-toggle:hover {
  background: rgba(255,255,255,0.12);
}

/* ===== Button ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  border: 2px solid transparent;
  transition: all 0.25s ease;
}

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

.btn-primary:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(255,122,69,0.35);
}

.btn-outline {
  border-color: #fff;
  color: #fff;
}

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

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

.btn-accent:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(255,122,69,0.35);
}

.btn-outline-light {
  border-color: rgba(255,255,255,0.8);
  color: #fff;
}

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

/* ===== Hero ===== */
.page-hero {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  color: #fff;
  overflow: hidden;
  background: var(--primary);
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
}

.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(14,79,74,0.78);
}

.hero-inner {
  position: relative;
  z-index: 2;
  padding: 80px 0 110px;
  max-width: 760px;
}

.hero-inner h1 {
  font-size: 46px;
  line-height: 1.2;
  color: #fff;
  margin-bottom: 20px;
  font-weight: 800;
}

.hero-inner h1 span {
  color: var(--accent);
}

.hero-sub {
  font-size: 18px;
  color: rgba(255,255,255,0.9);
  margin-bottom: 30px;
  max-width: 620px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.scroll-down {
  position: absolute;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  z-index: 3;
  color: rgba(255,255,255,0.85);
  font-size: 20px;
  animation: floatDown 2s ease-in-out infinite;
}

.scroll-down:hover {
  color: #fff;
}

@keyframes floatDown {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, 8px); }
}

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

.section-head {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 52px;
}

.section-head h2 {
  font-size: 34px;
  line-height: 1.3;
  color: var(--primary);
  margin-bottom: 14px;
  font-weight: 800;
}

.section-head p {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.section-head.left {
  text-align: left;
  margin: 0 0 32px;
}

.section-tag {
  display: inline-block;
  background: var(--accent-light);
  color: #C2501D;
  font-size: 13px;
  font-weight: 600;
  border-radius: 4px;
  padding: 6px 14px;
  margin-bottom: 14px;
  letter-spacing: 1px;
}

.section-tag.dark {
  background: rgba(255,255,255,0.14);
  color: #fff;
}

/* ===== Feature Cards ===== */
.features-section {
  background: var(--bg);
}

.features-section .cell {
  margin-bottom: 24px;
}

.feature-card {
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
}

.feature-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: rgba(255,122,69,0.6);
}

.card-media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

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

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

.card-tag {
  position: absolute;
  left: 14px;
  top: 14px;
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  padding: 5px 12px;
  border-radius: 4px;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

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

.card-body h3 {
  font-size: 20px;
  line-height: 1.4;
  color: var(--text);
  margin-bottom: 10px;
  font-weight: 700;
  transition: color 0.25s ease;
}

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

.card-body p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
  flex: 1;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-weight: 600;
  font-size: 15px;
}

.card-link i {
  transition: transform 0.25s ease;
}

.card-link:hover {
  color: var(--accent);
}

.card-link:hover i {
  transform: translateX(4px);
}

/* ===== Why Section ===== */
.why-section {
  background: #fff;
}

.why-media img {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  width: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.feature-list {
  margin-top: 8px;
}

.feature-list li {
  display: flex;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
  transition: background 0.25s ease;
}

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

.list-icon {
  flex-shrink: 0;
  width: 46px;
  height: 46px;
  border-radius: var(--radius-sm);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  transition: all 0.3s ease;
}

.feature-list li:hover .list-icon {
  background: var(--accent-light);
  color: var(--accent-dark);
}

.feature-list h4 {
  font-size: 18px;
  line-height: 1.4;
  margin-bottom: 4px;
  color: var(--text);
}

.feature-list p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* ===== Steps Section ===== */
.steps-section {
  background: var(--bg);
}

.step-card {
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 30px 26px;
  position: relative;
  height: 100%;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(255,122,69,0.5);
}

.step-num {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  color: var(--accent-dark);
  background: var(--accent-light);
  border-radius: 4px;
  padding: 4px 10px;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}

.step-card h4 {
  font-size: 18px;
  line-height: 1.4;
  margin-bottom: 8px;
  color: var(--text);
  font-weight: 700;
}

.step-card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* ===== Trust Section ===== */
.trust-section {
  background: var(--dark);
  color: #fff;
}

.trust-section .section-head h2 {
  color: #fff;
}

.trust-section .section-head p {
  color: rgba(255,255,255,0.75);
}

.trust-stat {
  text-align: center;
  padding: 36px 20px;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 20px;
  transition: background 0.3s ease, border-color 0.3s ease;
}

.trust-stat:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,122,69,0.35);
}

.stat-num {
  font-size: 48px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 15px;
  color: rgba(255,255,255,0.75);
}

.trust-note {
  text-align: center;
  margin-top: 20px;
  color: rgba(255,255,255,0.55);
  font-size: 14px;
}

.trust-note a {
  color: rgba(255,255,255,0.85);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.trust-note a:hover {
  color: var(--accent);
}

/* ===== FAQ Section ===== */
.faq-section {
  background: #EDF4F2;
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  margin-bottom: 16px;
  overflow: hidden;
  transition: border-color 0.3s ease;
}

.faq-item.open {
  border-color: rgba(255,122,69,0.5);
}

.faq-question {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 20px 24px;
  text-align: left;
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.5;
  transition: color 0.25s ease;
}

.faq-question::before {
  content: "+";
  font-size: 22px;
  line-height: 1;
  color: var(--primary);
  flex-shrink: 0;
  transition: transform 0.3s ease, color 0.25s ease;
}

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

.faq-item.open .faq-question::before {
  transform: rotate(45deg);
  color: var(--accent);
}

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

.faq-answer p {
  padding: 0 24px 22px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ===== CTA Section ===== */
.cta-section {
  padding: 64px 0;
  background: var(--bg);
}

.cta-box {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 16px;
  padding: 56px 32px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: 0 12px 32px rgba(14,79,74,0.22);
}

.cta-box::before {
  content: "";
  position: absolute;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.08);
  top: -120px;
  left: -80px;
}

.cta-box::after {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.06);
  bottom: -80px;
  right: -60px;
}

.cta-box h2 {
  color: #fff;
  font-size: 30px;
  line-height: 1.4;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
  font-weight: 800;
}

.cta-box p {
  color: rgba(255,255,255,0.85);
  font-size: 16px;
  margin-bottom: 30px;
  position: relative;
  z-index: 1;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.75);
  padding: 64px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-logo .logo-icon {
  font-size: 24px;
}

.footer-about {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,0.6);
  max-width: 330px;
}

.site-footer h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 16px;
  font-weight: 600;
}

.site-footer ul li {
  margin-bottom: 10px;
}

.site-footer a {
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  transition: color 0.25s ease;
}

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

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
}

.footer-contact .icon {
  font-size: 15px;
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: center;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(255,255,255,0.4);
  margin: 0;
}

/* ===== Responsive ===== */
@media (min-width: 1024px) {
  .main-nav {
    position: static;
    transform: none;
    height: auto;
    width: auto;
    padding: 0;
    background: transparent;
    box-shadow: none;
  }
}

@media (max-width: 1023px) {
  .nav-toggle {
    display: inline-flex;
  }

  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: min(380px, 86vw);
    background: var(--primary-dark);
    padding: 100px 28px 28px;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    box-shadow: -12px 0 32px rgba(0,0,0,0.25);
    justify-content: flex-start;
    overflow-y: auto;
  }

  body.nav-open .main-nav {
    transform: translateX(0);
  }

  body.nav-open .nav-toggle {
    position: fixed;
    top: 14px;
    right: 20px;
    z-index: 130;
    color: #fff;
    background: rgba(255,255,255,0.12);
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .nav-list a {
    padding: 14px 16px;
    border-radius: 8px;
    font-size: 16px;
  }

  .nav-list li.active a {
    box-shadow: inset 3px 0 0 var(--accent);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .page-hero {
    min-height: 480px;
  }
}

@media (max-width: 767px) {
  :root {
    --space: 48px;
  }

  .page-hero {
    min-height: 440px;
  }

  .hero-inner h1 {
    font-size: 34px;
  }

  .hero-sub {
    font-size: 16px;
  }

  .section-head h2 {
    font-size: 27px;
  }

  .section-head p {
    font-size: 16px;
  }

  .cta-box {
    padding: 40px 22px;
  }

  .cta-box h2 {
    font-size: 24px;
  }
}

@media (max-width: 520px) {
  .hero-actions .btn {
    width: 100%;
  }

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

  .feature-list li {
    flex-direction: column;
    gap: 10px;
  }

  .feature-list li {
    padding: 16px 0;
  }

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

  .footer-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}

/* roulang page: category2 */
:root {
  --primary: #0E4F4A;
  --primary-dark: #0A3A36;
  --accent: #FF7A45;
  --accent-light: #FF9A70;
  --signal: #E8B04B;
  --bg: #F7F4EE;
  --dark: #122725;
  --white: #FFFFFF;
  --text: #1A2E2A;
  --text-secondary: #5D6F6B;
  --text-muted: #8A9A96;
  --border: #E0E6E2;
  --border-input: #C6D0CC;
  --radius: 14px;
  --radius-sm: 8px;
  --radius-xs: 4px;
  --shadow: 0 4px 14px rgba(14,79,74,0.08);
  --shadow-hover: 0 10px 28px rgba(14,79,74,0.14);
  --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --transition: all 0.3s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--accent)}
img{max-width:100%;height:auto;display:block;object-fit:cover}
ul,ol{list-style:none}
button,input{font-family:inherit;font-size:inherit;border:none;outline:none;background:none}
button{cursor:pointer}
.container{max-width:1200px;margin:0 auto;padding:0 20px;width:100%}
.section-pad{padding:80px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 48px}
.section-head h2{font-size:34px;font-weight:800;color:var(--primary);line-height:1.3;margin-bottom:14px}
.section-head p{font-size:16px;color:var(--text-secondary);line-height:1.7}

/* header */
.site-header{
  background:var(--primary);
  position:relative;
  z-index:1000;
  box-shadow:0 2px 10px rgba(0,0,0,0.08);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
  position:relative;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--white);
  flex-shrink:0;
}
.logo-icon{
  font-size:28px;
  line-height:1;
  filter:drop-shadow(0 2px 4px rgba(0,0,0,0.2));
}
.logo-text{
  font-size:20px;
  font-weight:800;
  letter-spacing:0.5px;
  color:var(--white);
}
.logo:hover .logo-text{color:var(--accent)}
.main-nav{
  margin-left:40px;
}
.nav-list{
  display:flex;
  gap:6px;
}
.nav-list li{
  position:relative;
}
.nav-list > li > a{
  display:block;
  padding:10px 18px;
  color:rgba(255,255,255,0.85);
  font-size:15px;
  font-weight:600;
  border-radius:6px;
  transition:var(--transition);
  white-space:nowrap;
}
.nav-list > li > a:hover{
  color:var(--white);
  background:rgba(255,255,255,0.1);
}
.nav-list > li.active > a{
  color:var(--white);
  background:rgba(255,255,255,0.16);
}
.nav-list > li.active > a::after{
  content:"";
  position:absolute;
  left:18px;
  right:18px;
  bottom:6px;
  height:3px;
  border-radius:3px;
  background:var(--accent);
}
.nav-actions{
  display:flex;
  align-items:center;
  gap:12px;
}
.mega-trigger{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:10px 18px;
  color:rgba(255,255,255,0.9);
  background:rgba(255,255,255,0.12);
  border:1px solid rgba(255,255,255,0.18);
  border-radius:8px;
  font-size:14px;
  font-weight:600;
  transition:var(--transition);
}
.mega-trigger:hover{
  background:rgba(255,255,255,0.2);
  color:var(--white);
}
.mega-trigger .chevron{
  font-size:12px;
  transition:transform 0.3s;
}
.site-header.open .mega-trigger .chevron{
  transform:rotate(180deg);
}
.hamburger{
  display:none;
  flex-direction:column;
  gap:5px;
  padding:10px;
}
.hamburger span{
  display:block;
  width:24px;
  height:3px;
  border-radius:3px;
  background:var(--white);
  transition:var(--transition);
}
.hamburger.open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* mega panel */
.mega-panel{
  position:absolute;
  top:72px;
  left:0;
  right:0;
  background:var(--white);
  box-shadow:0 20px 40px rgba(0,0,0,0.12);
  border-top:3px solid var(--accent);
  max-height:0;
  overflow:hidden;
  opacity:0;
  visibility:hidden;
  transition:max-height 0.4s ease, opacity 0.3s ease, visibility 0.3s;
  border-radius:0 0 14px 14px;
}
.site-header.open .mega-panel{
  max-height:520px;
  opacity:1;
  visibility:visible;
}
.mega-inner{
  display:grid;
  grid-template-columns:1fr 1.4fr 1fr;
  gap:36px;
  padding:36px 20px;
}
.mega-col h4{
  font-size:14px;
  font-weight:800;
  color:var(--primary);
  letter-spacing:1px;
  margin-bottom:18px;
  padding-bottom:10px;
  border-bottom:2px solid var(--signal);
  display:inline-block;
}
.mega-col ul li{
  margin-bottom:8px;
}
.mega-col ul a{
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  color:var(--text);
  font-weight:500;
}
.mega-col ul a:hover{
  color:var(--accent);
  transform:translateX(4px);
}
.mega-news li a{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--text-secondary);
  padding:8px 0;
}
.mega-news li a::before{
  content:"›";
  color:var(--accent);
  font-weight:800;
}
.mega-cta{
  background:linear-gradient(135deg,#0E4F4A,#0A3A36);
  border-radius:12px;
  padding:24px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  color:var(--white);
  text-align:center;
  gap:14px;
}
.mega-cta span{
  font-size:15px;
  font-weight:700;
  line-height:1.5;
}
.mega-cta .btn{
  align-self:center;
}

/* mobile drawer */
.mobile-drawer{
  display:none;
  background:var(--dark);
  padding:0;
  max-height:0;
  overflow:hidden;
  transition:max-height 0.4s ease;
}
.mobile-drawer.open{
  max-height:420px;
}
.mobile-drawer ul{
  padding:20px;
}
.mobile-drawer ul li a{
  display:block;
  padding:14px 16px;
  color:rgba(255,255,255,0.9);
  font-size:16px;
  font-weight:600;
  border-bottom:1px solid rgba(255,255,255,0.08);
}
.mobile-drawer ul li:last-child a{border-bottom:none}
.mobile-drawer ul li.active a{
  color:var(--accent);
  background:rgba(255,122,69,0.1);
  border-radius:8px;
}
.mobile-drawer ul li a:hover{
  color:var(--accent);
  background:rgba(255,255,255,0.04);
}

/* buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 28px;
  border-radius:8px;
  font-size:16px;
  font-weight:700;
  line-height:1.4;
  transition:var(--transition);
  text-align:center;
}
.btn-accent{
  background:var(--accent);
  color:var(--white);
  border:2px solid var(--accent);
}
.btn-accent:hover{
  background:var(--accent-light);
  border-color:var(--accent-light);
  color:var(--white);
  transform:translateY(-2px);
  box-shadow:0 6px 20px rgba(255,122,69,0.3);
}
.btn-outline-light{
  background:transparent;
  color:var(--white);
  border:2px solid rgba(255,255,255,0.8);
}
.btn-outline-light:hover{
  background:var(--white);
  color:var(--primary);
  border-color:var(--white);
  transform:translateY(-2px);
}

/* breadcrumb */
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:rgba(255,255,255,0.7);
  margin-bottom:16px;
}
.breadcrumb a{
  color:rgba(255,255,255,0.8);
}
.breadcrumb a:hover{
  color:var(--accent);
}
.breadcrumb .current{
  color:var(--signal);
  font-weight:600;
}

/* page hero */
.page-hero{
  position:relative;
  padding:96px 0 100px;
  overflow:hidden;
  background:var(--dark);
}
.page-hero-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  opacity:0.45;
}
.page-hero-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(100deg, rgba(14,79,74,0.92) 0%, rgba(14,79,74,0.82) 55%, rgba(14,79,74,0.6) 100%);
}
.page-hero .container{
  position:relative;
  z-index:2;
}
.page-hero h1{
  font-size:48px;
  font-weight:800;
  color:var(--white);
  line-height:1.2;
  margin-bottom:12px;
  letter-spacing:1px;
}
.page-hero .hero-sub{
  font-size:18px;
  color:rgba(255,255,255,0.9);
  max-width:620px;
  line-height:1.7;
  margin-bottom:32px;
}
.hero-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}
.hero-scroll{
  position:absolute;
  bottom:20px;
  left:50%;
  transform:translateX(-50%);
  z-index:3;
  color:rgba(255,255,255,0.6);
  font-size:24px;
  animation:bounce 2s infinite;
}
@keyframes bounce{
  0%,100%{transform:translateX(-50%) translateY(0)}
  50%{transform:translateX(-50%) translateY(-10px)}
}

/* feature strip */
.feature-strip{
  background:var(--white);
  padding:64px 0;
  border-bottom:1px solid var(--border);
}
.feature-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:32px;
}
.feature-item{
  text-align:center;
  padding:28px 24px;
  border-radius:12px;
  background:var(--bg);
  border:1px solid var(--border);
  transition:var(--transition);
}
.feature-item:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(255,122,69,0.4);
}
.feature-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:64px;
  height:64px;
  border-radius:50%;
  background:#E8F2F0;
  font-size:28px;
  margin-bottom:16px;
}
.feature-item h3{
  font-size:18px;
  font-weight:700;
  color:var(--primary);
  margin-bottom:8px;
}
.feature-item p{
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.6;
}

/* step section */
.step-section{
  padding:80px 0;
  background:var(--bg);
}
.step-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  counter-reset:step;
}
.step-item{
  position:relative;
  background:var(--white);
  border:1px solid var(--border);
  border-radius:14px;
  padding:32px 24px 24px;
  transition:var(--transition);
  overflow:hidden;
}
.step-item:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-hover);
}
.step-item::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:4px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  opacity:0.8;
}
.step-num{
  display:inline-block;
  font-size:40px;
  font-weight:800;
  color:var(--primary);
  opacity:0.15;
  line-height:1;
  margin-bottom:12px;
}
.step-item h3{
  font-size:17px;
  font-weight:700;
  color:var(--text);
  margin-bottom:8px;
}
.step-item p{
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.6;
}
.step-line{
  height:2px;
  background:var(--signal);
  width:40px;
  margin:12px 0;
  border-radius:2px;
}

/* guide cards */
.guide-cards{
  padding:80px 0;
  background:var(--white);
}
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
}
.guide-card{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:14px;
  overflow:hidden;
  transition:var(--transition);
  display:flex;
  flex-direction:column;
}
.guide-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(255,122,69,0.5);
}
.card-media{
  position:relative;
  height:190px;
  overflow:hidden;
}
.card-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform 0.5s ease;
}
.guide-card:hover .card-media img{
  transform:scale(1.06);
}
.card-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(to top, rgba(14,79,74,0.12), transparent 60%);
}
.card-media .img-tag{
  position:absolute;
  top:14px;
  left:14px;
  z-index:2;
  background:rgba(255,255,255,0.92);
  color:var(--primary);
  font-size:12px;
  font-weight:700;
  padding:4px 10px;
  border-radius:20px;
  backdrop-filter:blur(4px);
}
.card-body{
  padding:22px 22px 20px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.card-tag{
  display:inline-block;
  background:#FFE8DC;
  color:#C2501D;
  font-size:12px;
  font-weight:700;
  padding:4px 10px;
  border-radius:4px;
  margin-bottom:12px;
  align-self:flex-start;
  letter-spacing:0.5px;
}
.card-body h3{
  font-size:18px;
  font-weight:700;
  color:var(--text);
  margin-bottom:10px;
  line-height:1.4;
  transition:var(--transition);
}
.guide-card:hover .card-body h3{
  color:var(--primary);
}
.card-body p{
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.65;
  flex:1;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:16px;
  font-size:14px;
  font-weight:700;
  color:var(--primary);
}
.card-link:hover{
  color:var(--accent);
  transform:translateX(4px);
}

/* faq section */
.faq-section{
  padding:80px 0;
  background:#EDF4F2;
}
.faq-list{
  max-width:820px;
  margin:0 auto;
}
.faq-item{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:12px;
  margin-bottom:14px;
  overflow:hidden;
  transition:var(--transition);
}
.faq-item:hover{
  border-color:rgba(255,122,69,0.4);
  box-shadow:var(--shadow);
}
.faq-question{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  background:var(--white);
  font-size:16px;
  font-weight:700;
  color:var(--text);
  text-align:left;
  transition:var(--transition);
}
.faq-question:hover{
  color:var(--primary);
}
.faq-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:28px;
  height:28px;
  border-radius:50%;
  background:var(--bg);
  border:1px solid var(--border);
  font-size:18px;
  font-weight:700;
  color:var(--primary);
  transition:var(--transition);
  flex-shrink:0;
}
.faq-item.active .faq-icon{
  background:var(--accent);
  color:var(--white);
  border-color:var(--accent);
  transform:rotate(45deg);
}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height 0.35s ease;
}
.faq-item.active .faq-answer{
  max-height:400px;
}
.faq-answer p{
  padding:0 24px 22px;
  font-size:15px;
  color:var(--text-secondary);
  line-height:1.75;
}

/* cta section */
.cta-section{
  position:relative;
  padding:80px 0;
  background:var(--dark);
  text-align:center;
  overflow:hidden;
}
.cta-section::before{
  content:"";
  position:absolute;
  right:-60px;
  top:-60px;
  width:220px;
  height:220px;
  border-radius:50%;
  background:rgba(255,122,69,0.08);
}
.cta-section::after{
  content:"";
  position:absolute;
  left:-40px;
  bottom:-40px;
  width:160px;
  height:160px;
  border-radius:50%;
  background:rgba(232,176,75,0.06);
}
.cta-section .container{
  position:relative;
  z-index:2;
}
.cta-section h2{
  font-size:34px;
  font-weight:800;
  color:var(--white);
  margin-bottom:14px;
}
.cta-section p{
  font-size:16px;
  color:rgba(255,255,255,0.8);
  max-width:520px;
  margin:0 auto 32px;
}
.cta-actions{
  display:flex;
  justify-content:center;
  gap:14px;
  flex-wrap:wrap;
}

/* footer */
.site-footer{
  background:var(--dark);
  color:rgba(255,255,255,0.7);
  padding:70px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-logo{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
}
.footer-logo .logo-icon{
  font-size:28px;
}
.footer-logo span{
  font-size:20px;
  font-weight:800;
  color:var(--white);
}
.footer-about{
  font-size:14px;
  line-height:1.7;
  color:rgba(255,255,255,0.6);
  max-width:300px;
}
.site-footer h4{
  font-size:16px;
  font-weight:700;
  color:var(--white);
  margin-bottom:16px;
}
.site-footer ul li{
  margin-bottom:10px;
}
.site-footer ul a{
  color:rgba(255,255,255,0.6);
  font-size:14px;
}
.site-footer ul a:hover{
  color:var(--accent);
}
.footer-contact li{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:rgba(255,255,255,0.6);
}
.footer-contact .icon{
  font-size:16px;
  flex-shrink:0;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.08);
  padding:24px 0;
  text-align:center;
}
.footer-bottom p{
  font-size:13px;
  color:rgba(255,255,255,0.4);
}

/* responsive */
@media (max-width: 1024px){
  .main-nav{margin-left:20px}
  .nav-list > li > a{padding:10px 12px;font-size:14px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width: 768px){
  .header-inner{height:64px}
  .main-nav{display:none}
  .mega-trigger{display:none}
  .hamburger{display:flex}
  .mobile-drawer{display:block}
  .page-hero{padding:64px 0 72px}
  .page-hero h1{font-size:36px}
  .feature-grid{grid-template-columns:1fr;gap:16px}
  .card-grid{grid-template-columns:1fr}
  .step-grid{grid-template-columns:1fr 1fr}
  .mega-inner{grid-template-columns:1fr;gap:16px;padding:24px 20px}
  .section-pad{padding:52px 0}
  .step-section{padding:52px 0}
  .guide-cards{padding:52px 0}
  .faq-section{padding:52px 0}
  .cta-section{padding:52px 0}
  .site-footer{padding:48px 0 0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .section-head h2{font-size:28px}
}
@media (max-width: 520px){
  .step-grid{grid-template-columns:1fr}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%}
  .page-hero h1{font-size:30px}
  .section-head p{font-size:15px}
  .card-body{padding:18px}
  .footer-bottom p{font-size:12px}
}
@media (max-width: 375px){
  .logo-text{font-size:17px}
  .page-hero h1{font-size:26px}
  .page-hero .hero-sub{font-size:15px}
}

/* roulang page: category3 */
/* ===================== Design Variables ===================== */
:root {
  --primary: #0E4F4A;
  --primary-dark: #0A3D39;
  --primary-light: #1B6E63;
  --accent: #FF7A45;
  --accent-hover: #FF8A5C;
  --accent-light: #FFE8DC;
  --signal: #E8B04B;
  --bg: #F7F4EE;
  --dark: #122725;
  --text: #1A2E2A;
  --text-secondary: #5D6F6B;
  --text-muted: #8A9A96;
  --border: #E0E6E2;
  --input-border: #C6D0CC;
  --white: #FFFFFF;
  --card-radius: 12px;
  --btn-radius: 8px;
  --tag-radius: 4px;
  --shadow-sm: 0 4px 12px rgba(14,79,74,0.08);
  --shadow-md: 0 8px 24px rgba(14,79,74,0.12);
  --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --container-w: 1200px;
  --section-space: 80px;
  --transition: all 0.3s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background-color: var(--bg);
  color: var(--text);
  font-size: 17px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: var(--primary); transition: var(--transition); }
a:hover { color: var(--accent); }
ul, ol { list-style: none; }
button { font-family: var(--font); cursor: pointer; }
input, textarea { font-family: var(--font); }

.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
}

/* ===================== Buttons ===================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--btn-radius);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.5px;
  border: 2px solid transparent;
  transition: var(--transition);
  line-height: 1.4;
  white-space: nowrap;
}
.btn:focus-visible {
  outline: 3px solid rgba(255,122,69,0.35);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(255,122,69,0.3);
}
.btn-accent {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}
.btn-accent:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(255,122,69,0.35);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.85);
}
.btn-outline:hover {
  background: var(--white);
  color: var(--primary);
  border-color: var(--white);
}
.btn-outline-dark {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline-dark:hover {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}
.btn-sm { height: 40px; padding: 0 20px; font-size: 14px; }

/* ===================== Badge / Tag ===================== */
.badge {
  display: inline-block;
  background: var(--accent-light);
  color: #C2501D;
  font-size: 13px;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: var(--tag-radius);
  letter-spacing: 0.3px;
}
.badge-primary {
  background: rgba(14,79,74,0.12);
  color: var(--primary);
}
.badge-signal {
  background: rgba(232,176,75,0.18);
  color: #9A6B15;
}

/* ===================== Section Common ===================== */
.section { padding: var(--section-space) 0; }
.section-alt { background: var(--white); }
.section-head {
  text-align: center;
  margin-bottom: 48px;
}
.section-head .badge { margin-bottom: 14px; }
.section-head h2 {
  font-size: 34px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.3;
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}
.section-head p {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ===================== Header & Nav ===================== */
.site-header {
  background: var(--primary);
  position: sticky;
  top: 0;
  z-index: 1000;
  height: 72px;
  box-shadow: 0 2px 12px rgba(10,61,57,0.3);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 16px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  font-size: 28px;
  line-height: 1;
  display: block;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.2));
}
.logo-text {
  font-size: 20px;
  font-weight: 800;
  color: var(--white);
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.logo-text:hover { color: var(--signal); }

.main-nav { flex: 1; display: flex; justify-content: center; }
.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
}
.nav-list > li { position: relative; }
.nav-list > li > a {
  display: flex;
  align-items: center;
  height: 72px;
  padding: 0 18px;
  color: rgba(255,255,255,0.88);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.3px;
  position: relative;
  transition: var(--transition);
}
.nav-list > li > a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 3px;
  background: var(--accent);
  border-radius: 3px 3px 0 0;
  transition: var(--transition);
}
.nav-list > li > a:hover { color: var(--white); }
.nav-list > li > a:hover::after { width: 60%; }
.nav-list > li.active > a { color: var(--white); font-weight: 700; }
.nav-list > li.active > a::after { width: 70%; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.header-cta {
  height: 38px;
  padding: 0 18px;
  background: var(--accent);
  border-color: var(--accent);
  font-size: 14px;
}
.header-cta:hover { background: var(--accent-hover); border-color: var(--accent-hover); }

/* Mega Panel */
.mega-trigger { position: relative; }
.mega-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 38px;
  padding: 0 14px;
  background: rgba(255,255,255,0.14);
  color: var(--white);
  border-radius: var(--btn-radius);
  font-size: 14px;
  font-weight: 600;
  border: 1px solid rgba(255,255,255,0.2);
  transition: var(--transition);
}
.mega-btn:hover {
  background: rgba(255,255,255,0.24);
  color: var(--white);
}
.mega-btn i { font-size: 12px; transition: transform 0.3s; }
.mega-trigger:hover .mega-btn i { transform: rotate(180deg); }
.mega-panel {
  position: absolute;
  top: 46px;
  right: 0;
  width: 460px;
  background: var(--white);
  border-radius: 12px;
  box-shadow: 0 16px 40px rgba(10,61,57,0.22);
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: var(--transition);
  border: 1px solid var(--border);
  z-index: 1200;
}
.mega-trigger:hover .mega-panel,
.mega-trigger:focus-within .mega-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.mega-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.mega-col h4 {
  font-size: 14px;
  color: var(--text-muted);
  font-weight: 700;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.mega-col ul li { margin-bottom: 10px; }
.mega-col ul li a {
  font-size: 14px;
  color: var(--text);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
}
.mega-col ul li a::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}
.mega-col ul li a:hover { color: var(--primary); transform: translateX(3px); }
.mega-cta {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  text-align: center;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--white);
  font-size: 22px;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  transition: var(--transition);
}
.mobile-toggle:hover { background: rgba(255,255,255,0.15); }

/* Mobile Drawer */
.mobile-drawer {
  display: none;
  position: fixed;
  top: 0;
  right: -320px;
  width: 300px;
  height: 100vh;
  background: var(--white);
  z-index: 1200;
  box-shadow: -8px 0 30px rgba(0,0,0,0.2);
  padding: 24px;
  overflow-y: auto;
  transition: right 0.3s ease;
}
.mobile-drawer.open { right: 0; }
.drawer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.drawer-logo { font-size: 18px; font-weight: 800; color: var(--primary); }
.drawer-close {
  background: transparent;
  border: none;
  font-size: 22px;
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.drawer-close:hover { background: var(--accent-light); color: var(--accent); }
.drawer-nav ul li { margin-bottom: 6px; }
.drawer-nav ul li a {
  display: block;
  padding: 12px 14px;
  border-radius: 10px;
  color: var(--text);
  font-size: 16px;
  font-weight: 600;
  transition: var(--transition);
}
.drawer-nav ul li a:hover { background: var(--accent-light); color: var(--accent); padding-left: 18px; }
.drawer-nav ul li.active a { background: var(--primary); color: var(--white); }
.drawer-cta { margin-top: 24px; display: grid; gap: 12px; }
.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10,61,57,0.5);
  z-index: 1100;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}
.drawer-overlay.show { opacity: 1; visibility: visible; }

/* ===================== Hero ===================== */
.hero {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
  color: var(--white);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(14,79,74,0.88) 0%, rgba(14,79,74,0.72) 55%, rgba(14,79,74,0.52) 100%);
}
.hero::after {
  content: "";
  position: absolute;
  right: -120px;
  bottom: -120px;
  width: 420px;
  height: 420px;
  background: url("data:image/svg+xml,%3Csvg width='120' height='120' viewBox='0 0 120 120' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='%23ffffff' stroke-width='1' opacity='0.14'%3E%3Ccircle cx='20' cy='20' r='12'/%3E%3Ccircle cx='60' cy='60' r='20'/%3E%3Ccircle cx='100' cy='100' r='26'/%3E%3Cpath d='M60 0 C 80 20, 40 40, 60 60'/%3E%3C/g%3E%3C/svg%3E") repeat;
  background-size: 120px 120px;
  border-radius: 50%;
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  padding: 70px 0;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,122,69,0.2);
  border: 1px solid rgba(255,122,69,0.4);
  color: #FFD9C9;
  font-size: 13px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 30px;
  margin-bottom: 22px;
  letter-spacing: 0.5px;
}
.hero h1 {
  font-size: 46px;
  font-weight: 900;
  line-height: 1.2;
  color: var(--white);
  margin-bottom: 10px;
  letter-spacing: 1px;
}
.hero h1 .highlight {
  color: var(--accent);
  position: relative;
}
.hero .hero-sub {
  font-size: 17px;
  color: rgba(255,255,255,0.88);
  line-height: 1.7;
  margin-bottom: 30px;
  max-width: 580px;
}
.hero-divider {
  width: 64px;
  height: 4px;
  background: var(--accent);
  border-radius: 4px;
  margin-bottom: 24px;
}
.hero-btns {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.hero-scroll {
  position: absolute;
  bottom: 26px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  color: rgba(255,255,255,0.8);
  font-size: 12px;
  letter-spacing: 2px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}
.hero-scroll:hover { color: var(--white); }
.hero-scroll i {
  font-size: 18px;
  animation: bounceDown 2s infinite;
}
@keyframes bounceDown {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}

/* ===================== Stats Strip ===================== */
.stats-strip {
  background: var(--dark);
  padding: 56px 0;
  position: relative;
  overflow: hidden;
}
.stats-strip::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 0 Q 40 15, 30 30 Q 20 45, 30 60' fill='none' stroke='%23ffffff' stroke-width='0.6' opacity='0.06'/%3E%3C/svg%3E") repeat;
  background-size: 60px 60px;
  pointer-events: none;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
  z-index: 2;
}
.stat-item {
  text-align: center;
  padding: 16px 8px;
}
.stat-item .stat-num {
  font-size: 40px;
  font-weight: 900;
  color: var(--white);
  line-height: 1.2;
  display: block;
  margin-bottom: 6px;
  letter-spacing: 0.5px;
}
.stat-item .stat-num span { color: var(--accent); }
.stat-item .stat-label {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.5px;
}
.stat-item + .stat-item {
  border-left: 1px solid rgba(255,255,255,0.1);
}

/* ===================== Feature Cards ===================== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.feature-card {
  background: var(--white);
  border-radius: var(--card-radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(255,122,69,0.6);
}
.feature-card-img {
  height: 220px;
  overflow: hidden;
  position: relative;
}
.feature-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.feature-card:hover .feature-card-img img { transform: scale(1.06); }
.feature-card-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(14,79,74,0.25) 0%, transparent 60%);
}
.feature-card-body {
  padding: 26px 24px 28px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.feature-card-body .badge { align-self: flex-start; margin-bottom: 12px; }
.feature-card-body h3 {
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.4;
  transition: var(--transition);
}
.feature-card:hover .feature-card-body h3 { color: var(--primary); }
.feature-card-body p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
}
.feature-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
  margin-top: 16px;
  transition: var(--transition);
}
.feature-card-link:hover { color: var(--accent); gap: 10px; }
.feature-card-link i { font-size: 13px; }

/* ===================== Process Steps ===================== */
.process-section { background: var(--white); }
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
}
.process-grid::before {
  content: "";
  position: absolute;
  top: 40px;
  left: 12%;
  right: 12%;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--border) 0 8px, transparent 8px 16px);
  z-index: 0;
}
.process-step {
  text-align: center;
  position: relative;
  z-index: 1;
  padding: 0 8px;
}
.process-step-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 18px;
  background: var(--white);
  border: 2px solid var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  color: var(--primary);
  box-shadow: 0 0 0 8px rgba(14,79,74,0.06);
  transition: var(--transition);
}
.process-step:hover .process-step-icon {
  background: var(--primary);
  color: var(--white);
  transform: scale(1.06);
  box-shadow: 0 0 0 10px rgba(14,79,74,0.12);
}
.process-step .step-num {
  display: inline-block;
  background: var(--accent-light);
  color: #C2501D;
  font-size: 12px;
  font-weight: 700;
  padding: 2px 12px;
  border-radius: 20px;
  margin-bottom: 10px;
  letter-spacing: 1px;
}
.process-step h3 {
  font-size: 18px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 8px;
}
.process-step p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===================== Split Section ===================== */
.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.split-media {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  height: 420px;
}
.split-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.split-media::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 4px solid rgba(255,255,255,0.15);
  border-radius: 16px;
  pointer-events: none;
}
.split-content h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.3;
  margin-bottom: 14px;
}
.split-content p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
}
.channel-list { display: grid; gap: 18px; }
.channel-item {
  display: flex;
  gap: 14px;
  background: var(--white);
  border-radius: 12px;
  padding: 18px 20px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.channel-item:hover {
  border-color: rgba(255,122,69,0.5);
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}
.channel-icon {
  width: 44px;
  height: 44px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.channel-text h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 2px;
}
.channel-text p {
  font-size: 13.5px;
  color: var(--text-muted);
  margin-bottom: 0;
  line-height: 1.5;
}

/* ===================== FAQ ===================== */
.faq-section { background: #EDF4F2; }
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
}
.accordion {
  background: transparent;
  display: grid;
  gap: 16px;
}
.accordion-item {
  background: var(--white);
  border-radius: 12px;
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.accordion-item:hover { border-color: rgba(255,122,69,0.4); }
.accordion-item.is-active { border-color: rgba(14,79,74,0.3); box-shadow: var(--shadow-md); }
.accordion-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  background: var(--white);
  position: relative;
  transition: var(--transition);
  border-bottom: 1px solid transparent;
}
.accordion-title:hover { color: var(--primary); background: #FAFBF9; }
.accordion-item.is-active .accordion-title {
  color: var(--primary);
  border-bottom-color: var(--border);
}
.accordion-title .faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-light);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
  transition: var(--transition);
}
.accordion-item.is-active .faq-icon {
  background: var(--accent);
  color: var(--white);
  transform: rotate(45deg);
}
.accordion-content {
  padding: 0 24px;
  background: var(--white);
  border: none !important;
}
.accordion-content p {
  padding: 16px 0 22px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ===================== CTA Block ===================== */
.cta-block {
  background: url('/assets/images/backpic/back-3.webp') center center / cover no-repeat;
  position: relative;
  padding: 84px 0;
  text-align: center;
  overflow: hidden;
}
.cta-block::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(14,79,74,0.85);
}
.cta-inner { position: relative; z-index: 2; }
.cta-inner h2 {
  font-size: 36px;
  font-weight: 900;
  color: var(--white);
  margin-bottom: 14px;
  line-height: 1.3;
}
.cta-inner p {
  font-size: 17px;
  color: rgba(255,255,255,0.85);
  max-width: 560px;
  margin: 0 auto 30px;
  line-height: 1.7;
}
.cta-btns {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===================== Footer ===================== */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.75);
  padding-top: 64px;
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.footer-logo .logo-icon { font-size: 26px; }
.footer-logo span:last-child {
  font-size: 18px;
  font-weight: 800;
  color: var(--white);
  letter-spacing: 0.5px;
}
.footer-about {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,0.65);
  max-width: 340px;
}
.site-footer h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 18px;
  letter-spacing: 0.5px;
  position: relative;
  padding-bottom: 10px;
}
.site-footer h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.site-footer ul li {
  margin-bottom: 10px;
  line-height: 1.6;
}
.site-footer ul li a {
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  transition: var(--transition);
}
.site-footer ul li a:hover { color: var(--accent); padding-left: 4px; }
.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: rgba(255,255,255,0.65);
}
.footer-contact .icon { color: var(--accent); }
.footer-bottom {
  padding: 22px 0;
  text-align: center;
  border-top: 1px solid rgba(255,255,255,0.08);
  margin-top: 0;
}
.footer-bottom p {
  font-size: 13px;
  color: rgba(255,255,255,0.45);
  letter-spacing: 0.5px;
}

/* ===================== Responsive ===================== */
@media (max-width: 1024px) {
  .main-nav { display: none; }
  .header-cta { display: none; }
  .mobile-toggle { display: flex; }
  .mega-trigger { display: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .stat-item + .stat-item { border-left: none; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 40px 32px; }
  .process-grid::before { display: none; }
  .split-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 36px; }
}

@media (max-width: 768px) {
  :root { --section-space: 48px; }
  .hero { min-height: 460px; }
  .hero h1 { font-size: 34px; }
  .hero-content { padding: 50px 0; }
  .hero-btns { flex-direction: column; width: 100%; max-width: 320px; }
  .hero-btns .btn { width: 100%; }
  .section-head h2 { font-size: 27px; }
  .split-media { height: 300px; }
  .cta-inner h2 { font-size: 28px; }
  .feature-grid, .process-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .mega-panel { display: none; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .logo-text { font-size: 16px; }
  .logo-icon { font-size: 24px; }
  .hero h1 { font-size: 26px; }
  .hero-sub { font-size: 14px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-item .stat-num { font-size: 30px; }
  .channel-item { padding: 14px 16px; }
  .accordion-title { padding: 16px 18px; font-size: 15px; }
  .accordion-content p { padding: 12px 0 18px; font-size: 14px; }
  .cta-btns { flex-direction: column; align-items: center; }
  .cta-btns .btn { width: 100%; max-width: 280px; }
  .site-footer { padding-top: 40px; }
}

/* Foundation override to match design system */
.accordion { margin-left: 0; }
.accordion-content { border: none; }
.grid-x { margin: 0; }
.cell { padding: 0; }