/* roulang page: index */
:root {
  --deep-green: #0B3B2C;
  --dark-green: #07271D;
  --energy-orange: #FF6A35;
  --orange-light: #FF824F;
  --lawn-green: #2EC97E;
  --sand-bg: #F6F2EA;
  --card-white: #FFFFFF;
  --text-main: #1E2B24;
  --text-dark: #16231C;
  --text-muted: #7B877F;
  --border-color: #E8E2D6;
  --tag-bg: rgba(255, 106, 53, 0.08);
  --tag-text: #E04E1B;
  --warm-white: #FBF7EF;
  --warm-muted: rgba(255, 255, 255, 0.65);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-btn: 10px;
  --radius-tag: 6px;
  --radius-pill: 999px;
  --shadow-card: 0 2px 10px rgba(7, 39, 29, 0.06);
  --shadow-hover: 0 10px 32px rgba(7, 39, 29, 0.13);
  --shadow-dark: 0 18px 44px rgba(7, 39, 29, 0.35);
  --shadow-btn: 0 6px 20px rgba(255, 106, 53, 0.35);
  --space-section: 88px;
  --space-card: 24px;
  --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-data: "DIN Alternate", "Bebas Neue", "Impact", sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-stack);
  background: var(--sand-bg);
  color: var(--text-main);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}
button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}
input, textarea {
  font-family: inherit;
}
ul, ol {
  list-style: none;
}
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 3px solid rgba(255, 106, 53, 0.45);
  outline-offset: 2px;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
section {
  padding: var(--space-section) 0;
}
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 40px;
  gap: 24px;
}
.section-header h2 {
  font-size: clamp(1.5rem, 2.6vw, 2.3rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-dark);
  position: relative;
  padding-left: 18px;
}
.section-header h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  border-radius: 4px;
  background: var(--energy-orange);
}
.section-header .section-sub {
  font-size: 0.95rem;
  color: var(--text-muted);
  max-width: 360px;
  text-align: right;
}
.section-link {
  font-size: 0.9rem;
  color: var(--energy-orange);
  font-weight: 600;
  white-space: nowrap;
}
.section-link:hover {
  color: var(--orange-light);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-btn);
  padding: 12px 28px;
  transition: all 0.25s ease;
  border: 1px solid transparent;
  line-height: 1.4;
  white-space: nowrap;
}
.btn-primary {
  background: var(--energy-orange);
  color: #fff;
}
.btn-primary:hover {
  background: var(--orange-light);
  box-shadow: var(--shadow-btn);
  transform: translateY(-2px);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: none;
}
.btn-secondary {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: var(--warm-white);
}
.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.7);
}
.btn-light {
  background: #fff;
  color: var(--deep-green);
}
.btn-light:hover {
  background: #FFF5EE;
  box-shadow: 0 8px 24px rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}
.btn-disabled {
  background: #B9C2BC;
  color: #F6F2EA;
  cursor: not-allowed;
  box-shadow: none;
}
.btn-disabled:hover {
  transform: none;
  box-shadow: none;
  background: #B9C2BC;
}

.tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-tag);
  background: var(--tag-bg);
  color: var(--tag-text);
  line-height: 1.4;
}
.tag-green {
  background: rgba(46, 201, 126, 0.12);
  color: #1A9C63;
}
.tag-deep {
  background: rgba(11, 59, 44, 0.08);
  color: var(--deep-green);
}

.site-header {
  background: var(--deep-green);
  position: sticky;
  top: 0;
  z-index: 100;
  height: 68px;
  box-shadow: 0 2px 12px rgba(7, 39, 29, 0.2);
}
.header-inner {
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--energy-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}
.logo-icon svg {
  width: 20px;
  height: 20px;
}
.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.logo-text strong {
  color: #fff;
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}
.logo-text small {
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-top: 2px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  margin-left: auto;
}
.main-nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  position: relative;
  padding: 6px 0;
  transition: color 0.2s ease;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--energy-orange);
  border-radius: 2px;
  transition: width 0.25s ease;
}
.main-nav a:hover {
  color: #fff;
}
.main-nav a:hover::after {
  width: 100%;
}
.main-nav a.active {
  color: #fff;
  font-weight: 600;
}
.main-nav a.active::after {
  width: 100%;
  height: 3px;
}
.header-cta {
  margin-left: 8px;
  height: 40px;
  padding: 0 22px;
  font-size: 0.9rem;
}
.hamburger {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: background 0.2s ease;
}
.hamburger:hover {
  background: rgba(255, 255, 255, 0.08);
}
.hamburger svg {
  width: 20px;
  height: 20px;
}

.mobile-drawer {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--deep-green);
  z-index: 200;
  padding: 24px;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}
.mobile-drawer.open {
  opacity: 1;
  visibility: visible;
}
.drawer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
}
.drawer-close {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
}
.drawer-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.drawer-nav a {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.15rem;
  font-weight: 600;
  padding: 16px 12px;
  border-radius: 12px;
  transition: background 0.2s ease, color 0.2s ease;
}
.drawer-nav a:hover,
.drawer-nav a.active {
  background: rgba(255, 106, 53, 0.15);
  color: #fff;
}

.mobile-tabbar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 56px;
  background: #fff;
  border-top: 1px solid var(--border-color);
  z-index: 100;
  align-items: stretch;
  justify-content: space-around;
}
.mobile-tabbar a {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  color: var(--text-muted);
  font-size: 0.68rem;
  transition: color 0.2s ease;
}
.mobile-tabbar a svg {
  width: 20px;
  height: 20px;
}
.mobile-tabbar a.active {
  color: var(--energy-orange);
}

.hero {
  background: linear-gradient(135deg, var(--deep-green) 0%, var(--dark-green) 70%);
  position: relative;
  overflow: hidden;
  padding: 80px 0 96px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  opacity: 0.2;
  z-index: 0;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(7, 39, 29, 0.55);
  z-index: 1;
}
.hero .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 52% 48%;
  gap: 48px;
  align-items: center;
}
.hero-content {
  color: var(--warm-white);
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 106, 53, 0.1);
  border: 1px solid rgba(255, 106, 53, 0.3);
  color: #FFB787;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 22px;
  letter-spacing: 0.04em;
}
.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--warm-white);
  margin-bottom: 18px;
}
.hero-sub {
  font-size: 1.06rem;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 520px;
}
.hero-ctas {
  display: flex;
  gap: 16px;
  margin-bottom: 44px;
  flex-wrap: wrap;
}
.hero-stats {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}
.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.hero-stat .num {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--energy-orange);
  line-height: 1.2;
}
.hero-stat .label {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.6);
}

.hero-visual {
  position: relative;
}
.hero-visual-main {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-dark);
}
.hero-visual-main::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  border: 3px solid var(--energy-orange);
  transform: translate(12px, 12px);
  z-index: -1;
  pointer-events: none;
}
.hero-visual-main img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}
.hero-float-badge {
  position: absolute;
  bottom: 26px;
  right: -10px;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-pill);
  padding: 14px 22px;
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  max-width: 220px;
}
.hero-float-badge .float-icon {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--energy-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.hero-float-badge .float-icon svg {
  width: 18px;
  height: 18px;
  color: #fff;
}
.hero-float-badge .float-num {
  font-family: var(--font-data);
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--energy-orange);
  line-height: 1;
}
.hero-float-badge .float-text {
  display: flex;
  flex-direction: column;
}
.hero-float-badge .float-text strong {
  color: var(--warm-white);
  font-size: 0.85rem;
  font-weight: 700;
}
.hero-float-badge .float-text span {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.72rem;
}

.stats-bar {
  background: var(--deep-green);
  padding: 32px 0;
  margin-top: -34px;
  position: relative;
  z-index: 3;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-dark);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 8px 16px;
  border-left: 1px solid rgba(255, 255, 255, 0.1);
}
.stat-item:first-child {
  border-left: none;
}
.stat-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(255, 106, 53, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.stat-icon svg {
  width: 20px;
  height: 20px;
  color: var(--energy-orange);
}
.stat-body .stat-num {
  font-family: var(--font-data);
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--energy-orange);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}
.stat-body .stat-label {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.6);
}

.steps {
  background: var(--sand-bg);
  padding-bottom: 0;
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-card);
  position: relative;
}
.step-card {
  background: var(--card-white);
  border-radius: var(--radius-md);
  padding: 32px 28px 28px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.step-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--energy-orange), #FFB787);
  border-radius: 4px 4px 0 0;
}
.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.step-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 20px;
}
.step-num {
  font-family: var(--font-data);
  font-size: 2.8rem;
  font-weight: 900;
  font-style: italic;
  color: var(--energy-orange);
  line-height: 1;
  opacity: 0.85;
}
.step-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--deep-green);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.step-icon svg {
  width: 24px;
  height: 24px;
  color: #fff;
}
.step-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}
.step-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.latest-news {
  background: var(--sand-bg);
}
.news-layout {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 24px;
  margin-bottom: 24px;
}
.featured-card {
  background: var(--card-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-card);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  display: flex;
  flex-direction: column;
}
.featured-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.featured-thumb {
  overflow: hidden;
  height: 220px;
}
.featured-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.featured-card:hover .featured-thumb img {
  transform: scale(1.03);
}
.featured-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.featured-body .tag {
  align-self: flex-start;
  margin-bottom: 12px;
}
.featured-body h3 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.4;
  margin-bottom: 10px;
}
.featured-body h3 a:hover {
  color: var(--energy-orange);
}
.featured-body p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
}
.meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  gap: 12px;
}
.meta-row .date {
  font-size: 0.82rem;
  color: var(--text-muted);
  white-space: nowrap;
}
.meta-row .read-more {
  font-size: 0.85rem;
  color: var(--energy-orange);
  font-weight: 600;
  white-space: nowrap;
}
.meta-row .read-more:hover {
  color: var(--orange-light);
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.news-item {
  background: var(--card-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-card);
  padding: 16px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.2s ease;
  position: relative;
  overflow: hidden;
}
.news-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--energy-orange);
  opacity: 0;
  transition: opacity 0.2s ease;
}
.news-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}
.news-item:hover::before {
  opacity: 1;
}
.news-thumb {
  width: 88px;
  height: 88px;
  border-radius: 12px;
  overflow: hidden;
  flex-shrink: 0;
}
.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.news-info {
  flex: 1;
  min-width: 0;
}
.news-info h4 {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text-dark);
  line-height: 1.45;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 4px;
}
.news-info h4 a:hover {
  color: var(--energy-orange);
}
.news-info p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 8px;
}
.news-info .meta-row {
  margin-top: 0;
}
.news-info .meta-row .date {
  font-size: 0.78rem;
}
.news-info .meta-row .read-more {
  font-size: 0.8rem;
}

.empty-state {
  background: #FAF7F2;
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md);
  height: 180px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 0.95rem;
  grid-column: 1 / -1;
}
.empty-state svg {
  width: 40px;
  height: 40px;
  color: #C8C4B8;
}

.proof {
  background: linear-gradient(135deg, var(--deep-green) 0%, var(--dark-green) 70%);
  padding: 80px 0;
}
.proof .section-header h2 {
  color: var(--warm-white);
}
.proof .section-header .section-sub {
  color: var(--warm-muted);
}
.proof-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}
.proof-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  position: relative;
  transition: background 0.25s ease, transform 0.25s ease;
}
.proof-card:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-4px);
}
.proof-card + .proof-card {
  border-left: 1px dashed rgba(255, 255, 255, 0.2);
}
.proof-card + .proof-card {
  border-left-style: dashed;
}
.proof-num {
  font-family: var(--font-data);
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--energy-orange);
  line-height: 1;
  margin-bottom: 14px;
  font-variant-numeric: tabular-nums;
}
.proof-label {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 20px;
}
.proof-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--warm-white);
  margin-bottom: 6px;
}
.proof-desc {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.6;
}

.faq {
  background: var(--sand-bg);
}
.faq-layout {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 48px;
}
.faq-left h2 {
  font-size: clamp(1.5rem, 2.6vw, 2.3rem);
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.3;
  margin-bottom: 14px;
  position: relative;
  padding-left: 18px;
}
.faq-left h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  border-radius: 4px;
  background: var(--energy-orange);
}
.faq-left p {
  color: var(--text-muted);
  font-size: 0.95rem;
}
.faq-tags {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: var(--card-white);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  overflow: hidden;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}
.faq-item:hover {
  border-color: rgba(255, 106, 53, 0.3);
  box-shadow: 0 4px 16px rgba(7, 39, 29, 0.05);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-dark);
  background: transparent;
  transition: background 0.2s ease;
}
.faq-question:hover {
  background: #FBF8F2;
}
.faq-question .icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--tag-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.3s ease, background 0.3s ease;
}
.faq-question .icon svg {
  width: 16px;
  height: 16px;
  color: var(--energy-orange);
  transition: transform 0.3s ease;
}
.faq-item.open .faq-question .icon {
  background: var(--energy-orange);
  transform: rotate(45deg);
}
.faq-item.open .faq-question .icon svg {
  color: #fff;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 22px;
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.8;
}
.faq-item.open .faq-answer {
  max-height: 200px;
  padding: 0 22px 18px;
}

.cta-box {
  padding: 72px 0;
}
.cta-card {
  background: linear-gradient(100deg, var(--energy-orange) 0%, #F5923E 100%);
  border-radius: 28px;
  padding: 52px 56px;
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 8fr 4fr;
  gap: 32px;
  align-items: center;
  color: #fff;
}
.cta-card::before,
.cta-card::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  pointer-events: none;
}
.cta-card::before {
  width: 240px;
  height: 240px;
  top: -80px;
  right: 180px;
}
.cta-card::after {
  width: 160px;
  height: 160px;
  bottom: -60px;
  right: -20px;
}
.cta-card h2 {
  font-size: clamp(1.4rem, 2.2vw, 1.9rem);
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 10px;
  position: relative;
  z-index: 1;
}
.cta-card p {
  font-size: 1rem;
  opacity: 0.92;
  position: relative;
  z-index: 1;
  max-width: 520px;
}
.cta-actions {
  display: flex;
  gap: 12px;
  position: relative;
  z-index: 1;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.site-footer {
  background: var(--dark-green);
  padding: 64px 0 40px;
  position: relative;
  border-top: 3px solid var(--energy-orange);
}
.site-footer .container {
  position: relative;
}
.footer-grid {
  display: grid;
  grid-template-columns: 4fr 3fr 3fr 2fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.footer-logo .logo-icon {
  width: 34px;
  height: 34px;
}
.footer-logo .logo-text strong {
  font-size: 1.1rem;
}
.footer-desc {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.7;
  max-width: 260px;
}
.footer-col h4 {
  color: var(--warm-white);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 18px;
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.88rem;
  position: relative;
  padding-left: 14px;
  transition: color 0.2s ease;
}
.footer-col a::before {
  content: "#";
  position: absolute;
  left: 0;
  color: var(--energy-orange);
  font-size: 0.8rem;
}
.footer-col a:hover {
  color: var(--energy-orange);
}
.footer-contact {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.8;
}
.footer-contact span {
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-contact svg {
  width: 16px;
  height: 16px;
  color: var(--energy-orange);
  flex-shrink: 0;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-bottom p {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.4);
}
.footer-bottom p:last-child {
  color: rgba(255, 255, 255, 0.3);
}

@media (max-width: 1200px) {
  .container {
    padding: 0 20px;
  }
  .stats-bar {
    max-width: calc(100% - 40px);
  }
  .hero-visual-main img {
    height: 320px;
  }
}
@media (max-width: 991px) {
  .main-nav,
  .header-cta {
    display: none;
  }
  .hamburger {
    display: flex;
  }
  .mobile-tabbar {
    display: flex;
  }
  body {
    padding-bottom: 56px;
  }
  .hero {
    padding: 60px 0 72px;
  }
  .hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-visual {
    max-width: 520px;
    margin: 0 auto;
  }
  .hero-visual-main img {
    height: 300px;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .stat-item {
    border-left: none;
  }
  .stat-item:nth-child(odd) {
    border-right: 1px solid rgba(255, 255, 255, 0.1);
  }
  .news-layout {
    grid-template-columns: 1fr;
  }
  .faq-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .proof-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .proof-card + .proof-card {
    border-left: none;
    border-top: 1px dashed rgba(255, 255, 255, 0.2);
  }
  .cta-card {
    grid-template-columns: 1fr;
    padding: 40px 32px;
  }
  .cta-actions {
    justify-content: flex-start;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}
@media (max-width: 767px) {
  section {
    padding: 48px 0;
  }
  .container {
    padding: 0 16px;
  }
  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 28px;
  }
  .section-header .section-sub {
    text-align: left;
  }
  .steps-grid {
    grid-template-columns: 1fr;
  }
  .news-list {
    gap: 16px;
  }
  .news-item {
    padding: 14px;
  }
  .news-thumb {
    width: 72px;
    height: 72px;
  }
  .featured-thumb {
    height: 180px;
  }
  .featured-body {
    padding: 20px;
  }
  .featured-body h3 {
    font-size: 1.15rem;
  }
  .cta-card {
    padding: 32px 24px;
    border-radius: 20px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .hero {
    padding: 44px 0 60px;
  }
  .hero-visual-main img {
    height: 240px;
  }
  .hero-float-badge {
    right: 4px;
    bottom: 16px;
    padding: 10px 16px;
  }
  .hero-stats {
    gap: 20px;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .stat-item {
    padding: 6px 10px;
  }
  .stat-item:nth-child(odd) {
    border-right: none;
  }
  .stat-item:nth-child(even) {
    border-left: 1px solid rgba(255, 255, 255, 0.1);
  }
  .cta-actions .btn {
    width: 100%;
  }
  .section-link {
    font-size: 0.85rem;
  }
}
@media (max-width: 520px) {
  .hero h1 {
    font-size: 1.75rem;
  }
  .hero-sub {
    font-size: 0.95rem;
  }
  .hero-ctas .btn {
    width: 100%;
  }
  .news-item {
    flex-direction: column;
  }
  .news-thumb {
    width: 100%;
    height: 120px;
  }
  .proof-card {
    padding: 28px 24px;
  }
  .proof-num {
    font-size: 2.2rem;
  }
}

/* roulang page: article */
:root {
  --deep-green: #0B3B2C;
  --dark-green: #07271D;
  --energy-orange: #FF6A35;
  --lawn-green: #2EC97E;
  --sand-bg: #F6F2EA;
  --card-bg: #FFFFFF;
  --text-main: #1E2B24;
  --text-title: #16231C;
  --text-muted: #7B877F;
  --border-line: #E8E2D6;
  --tag-bg: rgba(255, 106, 53, 0.08);
  --tag-text: #E04E1B;
  --warm-white: #FBF7EF;
  --radius-large: 24px;
  --radius-card: 16px;
  --radius-btn: 10px;
  --radius-tag: 6px;
  --shadow-card: 0 2px 10px rgba(7, 39, 29, 0.06);
  --shadow-hover: 0 10px 32px rgba(7, 39, 29, 0.13);
  --shadow-dark: 0 18px 44px rgba(7, 39, 29, 0.35);
  --space-section: 88px;
  --space-grid: 24px;
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--sand-bg);
  color: var(--text-main);
  line-height: 1.75;
  font-size: 15px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

ul, ol {
  list-style-position: inside;
}

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

/* 顶部导航 */
.main-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--deep-green);
  height: 68px;
  display: flex;
  align-items: center;
}

.site-header-inner {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--energy-orange);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
}

.logo-icon svg {
  width: 22px;
  height: 22px;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-text strong {
  color: #fff;
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.logo-text small {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.56rem;
  letter-spacing: 0.2em;
  margin-top: 2px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.main-nav a {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 6px 2px;
  position: relative;
  transition: color 0.2s ease;
}

.main-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--energy-orange);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.main-nav a:hover {
  color: #fff;
}

.main-nav a:hover::after {
  transform: scaleX(1);
}

.main-nav a.active {
  color: #fff;
}

.main-nav a.active::after {
  transform: scaleX(1);
  height: 3px;
}

.nav-cta {
  background: var(--energy-orange);
  color: #fff;
  border: none;
  padding: 10px 22px;
  border-radius: var(--radius-btn);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.nav-cta:hover {
  background: #FF824F;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 106, 53, 0.35);
}

.nav-cta:focus-visible,
.main-nav a:focus-visible,
.menu-toggle:focus-visible {
  outline: 3px solid rgba(255, 106, 53, 0.45);
  outline-offset: 2px;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle svg {
  width: 24px;
  height: 24px;
}

/* 面包屑 */
.breadcrumb-section {
  background: var(--sand-bg);
  padding: 16px 0 0;
}

.breadcrumb {
  font-size: 13px;
  color: var(--text-muted);
}

.breadcrumb a {
  color: var(--text-muted);
  transition: color 0.2s ease;
}

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

.breadcrumb .sep {
  margin: 0 8px;
  color: var(--border-line);
}

/* 文章页头部 */
.article-header-section {
  background: var(--sand-bg);
  padding: 32px 0 36px;
}

.article-header .article-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  color: var(--deep-green);
  line-height: 1.3;
  margin-bottom: 16px;
  max-width: 860px;
}

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

.article-meta .dot {
  margin: 0 2px;
}

.article-meta .category-tag {
  background: var(--tag-bg);
  color: var(--tag-text);
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 500;
}

.article-meta .read-count {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.article-meta svg {
  width: 14px;
  height: 14px;
  opacity: 0.6;
}

/* 正文排版 */
.article-body-section {
  padding: 12px 0 20px;
}

.article-content-wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 20px;
}

.article-content {
  font-size: 1.02rem;
  line-height: 1.85;
  color: var(--text-main);
}

.article-content > p {
  margin-bottom: 1.5em;
}

.article-content h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-title);
  margin: 1.6em 0 1em;
  padding-left: 14px;
  border-left: 4px solid var(--energy-orange);
  line-height: 1.4;
}

.article-content h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--deep-green);
  margin: 1.4em 0 0.8em;
}

.article-content img {
  width: 100%;
  border-radius: 16px;
  margin: 1.6em 0;
}

.article-content blockquote {
  border-left: 3px solid var(--energy-orange);
  background: #FBF8F2;
  padding: 16px 20px;
  border-radius: 0 12px 12px 0;
  color: #4A5A52;
  margin: 1.5em 0;
  font-size: 0.96rem;
}

.article-content ul,
.article-content ol {
  margin: 1em 0;
  padding-left: 1.2em;
}

.article-content li {
  line-height: 1.8;
  margin-bottom: 0.4em;
}

.article-content ul li::marker {
  color: var(--energy-orange);
}

.article-content .table-wrap {
  overflow-x: auto;
  border-radius: 12px;
  border: 1px solid var(--border-line);
  margin: 1.6em 0;
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.article-content table th {
  background: var(--deep-green);
  color: #fff;
  font-weight: 600;
  padding: 12px 16px;
  text-align: left;
  font-size: 0.88rem;
}

.article-content table td {
  padding: 11px 16px;
  border-bottom: 1px solid var(--border-line);
}

.article-content table tr:nth-child(even) td {
  background: #FAF8F2;
}

/* 文章标签 */
.article-tags {
  max-width: 760px;
  margin: 40px auto 0;
  padding: 0 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.article-tags a {
  display: inline-block;
  padding: 6px 16px;
  background: var(--tag-bg);
  color: var(--tag-text);
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

.article-tags a:hover {
  background: var(--energy-orange);
  color: #fff;
  transform: translateY(-2px);
}

/* 相关阅读 */
.related-section {
  padding: 56px 0 24px;
}

.related-wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 20px;
}

.related-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-title);
  padding-left: 14px;
  border-left: 4px solid var(--energy-orange);
  margin-bottom: 24px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.related-card {
  background: var(--card-bg);
  border-radius: var(--radius-card);
  border: 1px solid var(--border-line);
  overflow: hidden;
  transition: all 0.25s ease;
}

.related-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.related-card .related-thumb {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #EAE6DC;
}

.related-card .related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.related-card:hover .related-thumb img {
  transform: scale(1.03);
}

.related-card-body {
  padding: 14px 16px;
}

.related-card-body h4 {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-title);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  margin-bottom: 8px;
}

.related-card-body .related-date {
  font-size: 12px;
  color: var(--text-muted);
}

/* 返回入口 */
.back-entry {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 20px 60px;
}

.back-entry a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--deep-green);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 10px 0;
  transition: color 0.2s ease;
}

.back-entry a:hover {
  color: var(--energy-orange);
}

.back-entry svg {
  width: 16px;
  height: 16px;
  transition: transform 0.2s ease;
}

.back-entry a:hover svg {
  transform: translateX(-4px);
}

/* 内容未找到 */
.not-found {
  max-width: 760px;
  margin: 60px auto;
  padding: 60px 24px;
  text-align: center;
  background: #FAF7F2;
  border: 1px dashed var(--border-line);
  border-radius: var(--radius-large);
}

.not-found .icon-wrap {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: #E9E4DA;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  color: var(--text-muted);
}

.not-found .icon-wrap svg {
  width: 32px;
  height: 32px;
}

.not-found h3 {
  font-size: 1.2rem;
  color: var(--text-title);
  margin-bottom: 8px;
}

.not-found p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 20px;
}

.not-found .back-home-btn {
  display: inline-block;
  background: var(--energy-orange);
  color: #fff;
  padding: 10px 28px;
  border-radius: var(--radius-btn);
  font-size: 0.9rem;
  font-weight: 600;
  transition: all 0.2s ease;
}

.not-found .back-home-btn:hover {
  background: #FF824F;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 106, 53, 0.35);
}

/* 页脚 */
.site-footer {
  background: var(--dark-green);
  margin-top: auto;
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--energy-orange), #FFB787);
}

.footer-grid {
  display: grid;
  grid-template-columns: 4fr 3fr 2fr 3fr;
  gap: 40px;
  padding: 56px 0 40px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.footer-logo .logo-icon {
  width: 36px;
  height: 36px;
}

.footer-logo .logo-icon svg {
  width: 20px;
  height: 20px;
}

.footer-logo .logo-text strong {
  font-size: 1.1rem;
}

.footer-logo .logo-text small {
  font-size: 0.52rem;
}

.footer-desc {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.88rem;
  line-height: 1.7;
  margin-bottom: 0;
  max-width: 260px;
}

.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 8px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 24px;
  height: 2px;
  background: var(--energy-orange);
}

.footer-col ul {
  list-style: none;
  padding: 0;
}

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul a {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  transition: color 0.2s ease;
}

.footer-col ul a::before {
  content: '#';
  color: var(--energy-orange);
  margin-right: 8px;
  font-size: 0.85rem;
  opacity: 0;
  transform: translateX(-4px);
  transition: all 0.2s ease;
}

.footer-col ul a:hover {
  color: var(--energy-orange);
}

.footer-col ul a:hover::before {
  opacity: 1;
  transform: translateX(0);
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-contact span {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.9rem;
}

.footer-contact svg {
  width: 16px;
  height: 16px;
  color: var(--energy-orange);
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.45);
  font-size: 0.8rem;
  margin: 0;
}

/* 移动端底部Tab */
.mobile-bottom-tab {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 56px;
  background: #fff;
  border-top: 1px solid var(--border-line);
  z-index: 100;
}

.mobile-bottom-tab .tab-list {
  display: flex;
  height: 100%;
  align-items: stretch;
}

.mobile-bottom-tab .tab-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  color: var(--text-muted);
  font-size: 11px;
  transition: color 0.2s ease;
}

.mobile-bottom-tab .tab-item svg {
  width: 20px;
  height: 20px;
}

.mobile-bottom-tab .tab-item.active {
  color: var(--energy-orange);
}

.mobile-bottom-tab .tab-item:hover {
  color: var(--energy-orange);
}

/* 移动端抽屉菜单 */
.mobile-drawer {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--deep-green);
  z-index: 200;
  padding: 80px 32px 32px;
  flex-direction: column;
}

.mobile-drawer.open {
  display: flex;
}

.mobile-drawer a {
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.15rem;
  font-weight: 600;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  display: block;
}

.mobile-drawer a.active {
  color: var(--energy-orange);
}

.mobile-drawer .drawer-close {
  position: absolute;
  top: 20px;
  right: 24px;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.6rem;
  cursor: pointer;
  padding: 8px;
}

@media (max-width: 1200px) {
  .footer-grid {
    grid-template-columns: 4fr 3fr 2fr;
    gap: 32px;
  }
}

@media (max-width: 991px) {
  .main-nav {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .mobile-bottom-tab {
    display: block;
  }

  body {
    padding-bottom: 56px;
  }

  .related-grid {
    gap: 16px;
  }
}

@media (max-width: 767px) {
  :root {
    --space-section: 64px;
  }

  .container {
    padding: 0 16px;
  }

  .site-header-inner {
    padding: 0 16px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 0 24px;
  }

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

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

  .article-header-section {
    padding: 24px 0 28px;
  }

  .article-meta {
    flex-wrap: wrap;
  }
}

@media (max-width: 520px) {
  body {
    font-size: 14px;
  }

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

  .article-content blockquote {
    padding: 14px 16px;
  }

  .back-entry {
    padding: 24px 16px 48px;
  }
}

/* 焦点可见性 */
a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(255, 106, 53, 0.45);
  outline-offset: 2px;
}

/* roulang page: category1 */
:root {
      --deep-green: #0B3B2C;
      --dark-green: #07271D;
      --energy-orange: #FF6A35;
      --lawn-green: #2EC97E;
      --sand-bg: #F6F2EA;
      --card-bg: #FFFFFF;
      --text-main: #1E2B24;
      --text-strong: #16231C;
      --text-weak: #7B877F;
      --border-color: #E8E2D6;
      --tag-bg: rgba(255, 106, 53, 0.08);
      --tag-text: #E04E1B;
      --radius-lg: 24px;
      --radius-md: 16px;
      --radius-sm: 10px;
      --radius-tag: 6px;
      --shadow-card: 0 2px 10px rgba(7, 39, 29, 0.06);
      --shadow-hover: 0 10px 32px rgba(7, 39, 29, 0.13);
      --shadow-deep: 0 18px 44px rgba(7, 39, 29, 0.35);
      --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

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

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

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

    ul,
    ol {
      list-style: none;
    }

    button,
    input {
      font-family: inherit;
      font-size: inherit;
      border: none;
      background: none;
      cursor: pointer;
    }

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

    /* ===== Header ===== */
    .site-header {
      background: var(--deep-green);
      position: sticky;
      top: 0;
      z-index: 100;
      height: 68px;
      display: flex;
      align-items: center;
      box-shadow: 0 4px 20px rgba(7, 39, 29, 0.2);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
    }

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

    .logo-icon {
      width: 38px;
      height: 38px;
      background: var(--energy-orange);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      box-shadow: 0 4px 12px rgba(255, 106, 53, 0.4);
    }

    .logo-icon svg {
      width: 22px;
      height: 22px;
    }

    .logo-text {
      display: flex;
      flex-direction: column;
      line-height: 1.1;
    }

    .logo-text strong {
      color: #fff;
      font-size: 1.15rem;
      font-weight: 800;
      letter-spacing: 0.02em;
    }

    .logo-text small {
      font-size: 9px;
      color: rgba(255, 255, 255, 0.6);
      letter-spacing: 0.18em;
      text-transform: uppercase;
      margin-top: 2px;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 30px;
    }

    .main-nav a {
      color: rgba(255, 255, 255, 0.85);
      font-size: 0.95rem;
      font-weight: 500;
      padding: 6px 2px;
      position: relative;
      transition: color 0.2s ease;
    }

    .main-nav a::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: -4px;
      width: 0;
      height: 2px;
      background: var(--energy-orange);
      transition: width 0.25s ease;
    }

    .main-nav a:hover {
      color: #fff;
    }

    .main-nav a:hover::after {
      width: 100%;
    }

    .main-nav a.active {
      color: #fff;
      font-weight: 600;
    }

    .main-nav a.active::after {
      width: 100%;
      height: 3px;
    }

    .btn-open {
      background: var(--energy-orange);
      color: #fff;
      font-size: 0.9rem;
      font-weight: 600;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      transition: all 0.25s ease;
      box-shadow: 0 4px 14px rgba(255, 106, 53, 0.3);
      flex-shrink: 0;
    }

    .btn-open:hover {
      background: #FF824F;
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 106, 53, 0.35);
      color: #fff;
    }

    .btn-open:focus-visible {
      outline: 3px solid rgba(255, 106, 53, 0.45);
      outline-offset: 2px;
    }

    .menu-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      padding: 8px;
    }

    .menu-toggle span {
      width: 26px;
      height: 2px;
      background: #fff;
      border-radius: 2px;
      transition: 0.3s;
    }

    /* ===== Mobile Tabbar ===== */
    .mobile-tabbar {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      height: 56px;
      background: #fff;
      border-top: 1px solid var(--border-color);
      z-index: 100;
      align-items: center;
      justify-content: space-around;
      padding: 0 8px;
    }

    .tab-item {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 2px;
      font-size: 11px;
      color: var(--text-weak);
      transition: color 0.2s;
      min-height: 48px;
      justify-content: center;
      padding: 0 8px;
    }

    .tab-item svg {
      width: 20px;
      height: 20px;
    }

    .tab-item.active {
      color: var(--energy-orange);
    }

    .tab-item:hover {
      color: var(--energy-orange);
    }

    /* ===== Category Hero ===== */
    .category-hero {
      background: linear-gradient(135deg, var(--deep-green) 0%, var(--dark-green) 70%);
      padding: 72px 0 84px;
      position: relative;
      overflow: hidden;
    }

    .category-hero::before {
      content: "";
      position: absolute;
      top: 0;
      right: 0;
      width: 45%;
      height: 100%;
      background: url('/assets/images/backpic/back-1.png') no-repeat center/cover;
      opacity: 0.15;
    }

    .category-hero::after {
      content: "";
      position: absolute;
      bottom: -20px;
      left: 0;
      right: 0;
      height: 40px;
      background: var(--sand-bg);
      border-radius: 50% 50% 0 0;
      filter: blur(8px);
      opacity: 0.9;
    }

    .hero-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 40px;
      position: relative;
      z-index: 2;
    }

    .hero-copy {
      max-width: 620px;
    }

    .hero-copy h1 {
      color: #FBF7EF;
      font-size: clamp(1.8rem, 3vw, 2.6rem);
      font-weight: 800;
      line-height: 1.2;
      margin-bottom: 16px;
    }

    .hero-copy p {
      color: rgba(255, 255, 255, 0.75);
      font-size: 1rem;
      line-height: 1.75;
      max-width: 520px;
    }

    .hero-badge {
      display: flex;
      align-items: center;
      gap: 12px;
      background: rgba(255, 255, 255, 0.12);
      backdrop-filter: blur(8px);
      -webkit-backdrop-filter: blur(8px);
      border: 1px solid rgba(255, 255, 255, 0.25);
      border-radius: 999px;
      padding: 14px 28px;
      box-shadow: var(--shadow-deep);
      flex-shrink: 0;
    }

    .badge-num {
      font-family: "DIN Alternate", "Bebas Neue", "Impact", sans-serif;
      font-size: 40px;
      font-weight: 800;
      color: var(--energy-orange);
      font-variant-numeric: tabular-nums;
      line-height: 1;
    }

    .badge-txt {
      display: flex;
      flex-direction: column;
      line-height: 1.3;
    }

    .badge-txt strong {
      color: #FBF7EF;
      font-size: 0.95rem;
      font-weight: 600;
    }

    .badge-txt span {
      color: rgba(255, 255, 255, 0.65);
      font-size: 0.78rem;
    }

    /* ===== News Section 2+1 ===== */
    .news-section {
      padding: 72px 0 24px;
    }

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

    .section-head h2 {
      font-size: clamp(1.5rem, 2.6vw, 2.3rem);
      font-weight: 700;
      color: var(--text-strong);
      position: relative;
      padding-left: 16px;
      line-height: 1.3;
    }

    .section-head h2::before {
      content: "";
      position: absolute;
      left: 0;
      top: 4px;
      bottom: 4px;
      width: 5px;
      background: var(--energy-orange);
      border-radius: 3px;
    }

    .section-note {
      font-size: 0.9rem;
      color: var(--text-weak);
    }

    .news-grid {
      display: grid;
      grid-template-columns: 8fr 4fr;
      gap: 24px;
      align-items: start;
    }

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

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

    .feature-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }

    .feature-card .card-cover {
      height: 170px;
      overflow: hidden;
      position: relative;
    }

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

    .feature-card:hover .card-cover img {
      transform: scale(1.03);
    }

    .feature-card .card-body {
      padding: 20px 22px 24px;
    }

    .card-tag {
      display: inline-block;
      background: var(--tag-bg);
      color: var(--tag-text);
      font-size: 0.78rem;
      font-weight: 600;
      padding: 4px 10px;
      border-radius: var(--radius-tag);
      margin-bottom: 10px;
    }

    .card-title {
      font-size: 1.1rem;
      font-weight: 600;
      line-height: 1.4;
      color: var(--text-strong);
      margin-bottom: 8px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

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

    .card-summary {
      font-size: 0.9rem;
      color: var(--text-weak);
      line-height: 1.7;
      margin-bottom: 14px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .card-meta {
      display: flex;
      gap: 14px;
      font-size: 0.78rem;
      color: var(--text-weak);
      white-space: nowrap;
      align-items: center;
    }

    .card-meta a {
      color: var(--energy-orange);
      font-weight: 500;
    }

    /* ===== Mini Cards Column ===== */
    .news-mini-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .mini-card {
      display: flex;
      gap: 14px;
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: 14px;
      padding: 14px;
      box-shadow: var(--shadow-card);
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
    }

    .mini-card::before {
      content: "";
      position: absolute;
      left: 0;
      top: 0;
      bottom: 0;
      width: 3px;
      background: var(--energy-orange);
      opacity: 0;
      transition: opacity 0.3s;
    }

    .mini-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-3px);
    }

    .mini-card:hover::before {
      opacity: 1;
    }

    .mini-thumb {
      width: 88px;
      height: 88px;
      flex-shrink: 0;
      border-radius: 12px;
      overflow: hidden;
    }

    .mini-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .mini-body {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      min-width: 0;
    }

    .mini-body h4 {
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-strong);
      line-height: 1.45;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .mini-body h4 a:hover {
      color: var(--energy-orange);
    }

    .mini-date {
      font-size: 0.75rem;
      color: var(--text-weak);
      white-space: nowrap;
    }

    /* ===== Data Highlights ===== */
    .data-highlights {
      padding: 56px 0;
      background: var(--deep-green);
      background-image: linear-gradient(135deg, var(--deep-green), var(--dark-green));
      border-radius: 24px;
      margin: 48px 0;
    }

    .data-highlights .container {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 0;
    }

    .data-item {
      text-align: center;
      padding: 40px 20px;
      position: relative;
    }

    .data-item + .data-item {
      border-left: 1px dashed rgba(255, 255, 255, 0.2);
    }

    .data-num {
      font-family: "DIN Alternate", "Bebas Neue", "Impact", sans-serif;
      font-size: 42px;
      font-weight: 800;
      color: var(--energy-orange);
      font-variant-numeric: tabular-nums;
      line-height: 1;
      margin-bottom: 8px;
    }

    .data-label {
      color: rgba(255, 255, 255, 0.65);
      font-size: 0.85rem;
    }

    /* ===== Timeline ===== */
    .timeline-section {
      padding: 24px 0 56px;
    }

    .timeline-list {
      display: flex;
      flex-direction: column;
      gap: 14px;
      max-width: 760px;
    }

    .timeline-item {
      display: flex;
      gap: 20px;
      align-items: flex-start;
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: 14px;
      padding: 18px 22px;
      transition: all 0.25s ease;
    }

    .timeline-item:hover {
      box-shadow: var(--shadow-hover);
      transform: translateX(4px);
    }

    .timeline-time {
      font-size: 0.8rem;
      color: var(--text-weak);
      white-space: nowrap;
      padding-top: 3px;
      min-width: 70px;
    }

    .timeline-content {
      font-size: 0.95rem;
      color: var(--text-main);
      line-height: 1.6;
      position: relative;
      padding-left: 16px;
    }

    .timeline-content::before {
      content: "";
      position: absolute;
      left: 0;
      top: 8px;
      width: 6px;
      height: 6px;
      background: var(--energy-orange);
      border-radius: 50%;
    }

    .timeline-content strong {
      color: var(--text-strong);
      font-weight: 600;
    }

    /* ===== CTA Banner ===== */
    .cta-banner {
      margin: 48px 0 0;
      border-radius: 28px;
      background: linear-gradient(100deg, var(--energy-orange) 0%, #F5923E 100%);
      padding: 48px 56px;
      position: relative;
      overflow: hidden;
    }

    .cta-banner::before,
    .cta-banner::after {
      content: "";
      position: absolute;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.08);
    }

    .cta-banner::before {
      width: 140px;
      height: 140px;
      top: -50px;
      right: -30px;
    }

    .cta-banner::after {
      width: 80px;
      height: 80px;
      bottom: -30px;
      left: 30px;
    }

    .cta-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 32px;
      position: relative;
      z-index: 2;
    }

    .cta-copy h2 {
      color: #fff;
      font-size: clamp(1.4rem, 2.4vw, 2rem);
      font-weight: 800;
      margin-bottom: 8px;
      text-align: left;
    }

    .cta-copy p {
      color: rgba(255, 255, 255, 0.85);
      font-size: 0.95rem;
    }

    .cta-actions {
      display: flex;
      gap: 14px;
      flex-shrink: 0;
    }

    .btn-light {
      background: #fff;
      color: var(--deep-green);
      font-weight: 700;
      font-size: 0.95rem;
      padding: 12px 28px;
      border-radius: var(--radius-sm);
      transition: all 0.25s ease;
    }

    .btn-light:hover {
      background: #FFF5EE;
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    }

    .btn-outline-light {
      border: 1px solid rgba(255, 255, 255, 0.6);
      color: #fff;
      font-size: 0.95rem;
      font-weight: 600;
      padding: 11px 26px;
      border-radius: var(--radius-sm);
      transition: all 0.25s ease;
    }

    .btn-outline-light:hover {
      background: rgba(255, 255, 255, 0.15);
      border-color: #fff;
    }

    /* ===== FAQ ===== */
    .faq-section {
      padding: 72px 0 24px;
      background: #FBF8F2;
      margin-top: 72px;
    }

    .faq-layout {
      display: grid;
      grid-template-columns: 5fr 7fr;
      gap: 48px;
    }

    .faq-intro h2 {
      font-size: clamp(1.5rem, 2.6vw, 2.1rem);
      font-weight: 700;
      color: var(--text-strong);
      margin-bottom: 14px;
      position: relative;
      padding-left: 16px;
    }

    .faq-intro h2::before {
      content: "";
      position: absolute;
      left: 0;
      top: 5px;
      bottom: 5px;
      width: 4px;
      background: var(--energy-orange);
      border-radius: 3px;
    }

    .faq-intro p {
      color: var(--text-weak);
      font-size: 0.95rem;
      line-height: 1.7;
    }

    .faq-tags {
      display: flex;
      gap: 8px;
      margin-bottom: 16px;
      flex-wrap: wrap;
    }

    .faq-tag {
      background: var(--tag-bg);
      color: var(--tag-text);
      font-size: 0.75rem;
      font-weight: 500;
      padding: 4px 12px;
      border-radius: 999px;
    }

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

    .faq-item {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: 14px;
      padding: 18px 22px;
      box-shadow: 0 2px 8px rgba(7, 39, 29, 0.04);
      transition: background 0.25s ease;
    }

    .faq-item:hover {
      background: #FBF8F2;
    }

    .faq-item.open {
      background: #fff;
    }

    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      cursor: pointer;
      font-size: 1rem;
      font-weight: 600;
      color: var(--text-strong);
    }

    .faq-icon {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: var(--tag-bg);
      color: var(--energy-orange);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
      flex-shrink: 0;
      transition: transform 0.3s ease;
      font-weight: 400;
    }

    .faq-item.open .faq-icon {
      transform: rotate(45deg);
      background: var(--energy-orange);
      color: #fff;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.3s ease;
      color: var(--text-weak);
      font-size: 0.92rem;
      line-height: 1.85;
    }

    .faq-item.open .faq-answer {
      max-height: 200px;
      padding-top: 12px;
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--dark-green);
      margin-top: 72px;
      position: relative;
      padding: 64px 0 32px;
    }

    .site-footer::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: linear-gradient(90deg, var(--energy-orange), var(--lawn-green));
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 4fr 2fr 3fr 3fr;
      gap: 40px;
      margin-bottom: 48px;
    }

    .footer-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 16px;
    }

    .footer-logo .logo-icon {
      width: 34px;
      height: 34px;
    }

    .footer-logo .logo-icon svg {
      width: 20px;
      height: 20px;
    }

    .footer-logo .logo-text strong {
      color: #fff;
      font-size: 1.1rem;
      font-weight: 800;
    }

    .footer-logo .logo-text small {
      font-size: 8px;
      color: rgba(255, 255, 255, 0.5);
      letter-spacing: 0.14em;
      text-transform: uppercase;
    }

    .footer-desc {
      font-size: 0.88rem;
      color: rgba(255, 255, 255, 0.5);
      line-height: 1.7;
      max-width: 280px;
    }

    .footer-col h4 {
      color: #fff;
      font-size: 0.95rem;
      font-weight: 600;
      margin-bottom: 18px;
    }

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

    .footer-col ul a {
      font-size: 0.88rem;
      color: rgba(255, 255, 255, 0.55);
      transition: color 0.25s;
      position: relative;
      padding-left: 14px;
    }

    .footer-col ul a::before {
      content: "#";
      position: absolute;
      left: 0;
      color: var(--energy-orange);
      font-size: 0.8rem;
      opacity: 0.8;
    }

    .footer-col ul a:hover {
      color: var(--energy-orange);
    }

    .footer-contact {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .footer-contact span {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.85rem;
      color: rgba(255, 255, 255, 0.55);
    }

    .footer-contact svg {
      width: 18px;
      height: 18px;
      color: var(--energy-orange);
      flex-shrink: 0;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 8px;
      text-align: center;
    }

    .footer-bottom p {
      font-size: 0.8rem;
      color: rgba(255, 255, 255, 0.4);
      margin: 0 auto;
    }

    /* ===== Focus States ===== */
    a:focus-visible,
    button:focus-visible,
    summary:focus-visible {
      outline: 3px solid rgba(255, 106, 53, 0.45);
      outline-offset: 2px;
    }

    /* ===== Responsive ===== */
    @media (max-width: 1200px) {
      .container {
        padding: 0 20px;
      }

      .hero-badge {
        padding: 12px 20px;
      }

      .news-grid {
        grid-template-columns: 7fr 5fr;
      }
    }

    @media (max-width: 992px) {
      .main-nav,
      .btn-open {
        display: none;
      }

      .menu-toggle {
        display: flex;
      }

      .mobile-tabbar {
        display: flex;
      }

      body {
        padding-bottom: 72px;
      }

      .category-hero {
        padding: 56px 0 64px;
      }

      .hero-row {
        flex-direction: column;
        align-items: flex-start;
      }

      .hero-badge {
        align-self: flex-start;
      }

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

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

      .news-mini-list {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 16px;
      }

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

      .cta-row {
        flex-direction: column;
        align-items: flex-start;
      }

      .cta-actions {
        width: 100%;
      }

      .btn-light,
      .btn-outline-light {
        flex: 1;
        text-align: center;
      }

      .footer-grid {
        grid-template-columns: 2fr 2fr 2fr;
        gap: 32px;
      }

      .footer-col:first-child {
        grid-column: 1 / -1;
      }
    }

    @media (max-width: 768px) {
      .news-feature {
        grid-template-columns: 1fr;
      }

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

      .data-highlights .container {
        grid-template-columns: 1fr;
      }

      .data-item + .data-item {
        border-left: none;
        border-top: 1px dashed rgba(255, 255, 255, 0.15);
      }

      .cta-banner {
        padding: 36px 28px;
      }

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

    @media (max-width: 520px) {
      .container {
        padding: 0 16px;
      }

      .category-hero {
        padding: 40px 0 48px;
      }

      .hero-copy h1 {
        font-size: 1.9rem;
      }

      .section-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
        margin-bottom: 28px;
      }

      .hero-badge {
        width: 100%;
        justify-content: center;
      }

      .timeline-item {
        flex-direction: column;
        gap: 6px;
        padding: 16px;
      }

      .timeline-time {
        min-width: auto;
      }

      .cta-actions {
        flex-direction: column;
      }

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

      .footer-bottom {
        flex-direction: column;
      }

      .footer-bottom p {
        margin: 2px auto;
      }
    }

/* roulang page: category2 */
:root {
  --deep-green: #0B3B2C;
  --dark-green: #07271D;
  --energy-orange: #FF6A35;
  --orange-light: #FF824F;
  --lawn-green: #2EC97E;
  --sand-bg: #F6F2EA;
  --card-bg: #FFFFFF;
  --text-main: #1E2B24;
  --text-strong: #16231C;
  --text-weak: #7B877F;
  --line: #E8E2D6;
  --line-dark: #ECE7DC;
  --tag-bg: rgba(255, 106, 53, 0.08);
  --tag-text: #E04E1B;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-btn: 10px;
  --radius-tag: 6px;
  --shadow-card: 0 2px 10px rgba(7, 39, 29, 0.06);
  --shadow-hover: 0 10px 32px rgba(7, 39, 29, 0.13);
  --shadow-dark: 0 18px 44px rgba(7, 39, 29, 0.35);
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "DIN Alternate", "Bebas Neue", "Impact", sans-serif;
  --container: 1200px;
  --padding-x: 24px;
  --section-pad: 88px;
}

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

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

body {
  font-family: var(--font-main);
  background: var(--sand-bg);
  color: var(--text-main);
  line-height: 1.75;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color .25s ease;
}

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

ul, ol {
  list-style: none;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--padding-x);
  padding-right: var(--padding-x);
}

section {
  padding: var(--section-pad) 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 44px;
}

.section-head h2 {
  font-size: clamp(1.5rem, 2.6vw, 2.3rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-strong);
  border-left: 4px solid var(--energy-orange);
  padding-left: 16px;
}

.section-head p {
  color: var(--text-weak);
  font-size: 0.95rem;
  max-width: 460px;
  text-align: right;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .28s ease;
  border: 1px solid transparent;
  white-space: nowrap;
  line-height: 1.4;
}

.btn:focus-visible {
  outline: 3px solid rgba(255, 106, 53, 0.45);
  outline-offset: 2px;
}

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

.btn-primary:hover {
  background: var(--orange-light);
  box-shadow: 0 6px 20px rgba(255, 106, 53, 0.35);
  transform: translateY(-2px);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(255, 106, 53, 0.3);
}

.btn-secondary {
  background: transparent;
  color: #FBF7EF;
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.65);
}

.btn-white {
  background: #fff;
  color: var(--deep-green);
}

.btn-white:hover {
  background: #FFF5EE;
  color: var(--deep-green);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(7, 39, 29, 0.25);
}

.btn-disabled,
.btn[disabled] {
  background: #B9C2BC;
  color: #F6F2EA;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--deep-green);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 20px;
}

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

.logo-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--energy-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 4px 14px rgba(255, 106, 53, 0.35);
}

.logo-icon svg {
  width: 24px;
  height: 24px;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-text strong {
  color: #fff;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.5px;
}

.logo-text small {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.55rem;
  font-weight: 600;
  letter-spacing: 1.4px;
  margin-top: 2px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.main-nav a {
  position: relative;
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 6px;
  transition: color .25s ease;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 0;
  height: 2px;
  background: var(--energy-orange);
  border-radius: 2px;
  opacity: 0;
  transform: scaleX(0.4);
  transition: all .3s ease;
}

.main-nav a:hover {
  color: #fff;
}

.main-nav a:hover::after {
  opacity: 1;
  transform: scaleX(1);
}

.main-nav a.active {
  color: #fff;
  font-weight: 600;
}

.main-nav a.active::after {
  opacity: 1;
  transform: scaleX(1);
  height: 3px;
}

.header-cta {
  padding: 10px 22px;
  font-size: 0.9rem;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  cursor: pointer;
  border-radius: 8px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: all .3s ease;
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.06);
}

/* ===== Mobile drawer ===== */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: var(--deep-green);
  z-index: 200;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: all .32s ease;
}

.mobile-drawer.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mobile-drawer a {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.3rem;
  font-weight: 600;
  padding: 8px 20px;
}

.mobile-drawer a.active {
  color: var(--energy-orange);
}

.mobile-drawer-close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 1.4rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mobile-drawer-close:hover {
  background: rgba(255, 255, 255, 0.16);
}

/* ===== Bottom Tab ===== */
.bottom-tab {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 56px;
  background: #fff;
  border-top: 1px solid var(--line);
  z-index: 100;
  padding-bottom: env(safe-area-inset-bottom);
}

.bottom-tab a {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  color: var(--text-weak);
  font-size: 11px;
  transition: color .25s ease;
}

.bottom-tab a svg {
  width: 20px;
  height: 20px;
}

.bottom-tab a.active {
  color: var(--energy-orange);
}

.bottom-tab a:hover {
  color: var(--energy-orange);
}

/* ===== Category Hero ===== */
.cate-hero {
  position: relative;
  background: linear-gradient(135deg, var(--deep-green) 0%, var(--dark-green) 70%);
  padding: 72px 0 88px;
  color: #FBF7EF;
  overflow: hidden;
}

.cate-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.18;
}

.cate-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -20px;
  height: 40px;
  background: var(--sand-bg);
  border-radius: 50% 50% 0 0;
  filter: blur(16px);
  opacity: 0.95;
}

.cate-hero .container {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
}

.cate-hero-content {
  max-width: 640px;
}

.cate-hero-content h1 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.25;
  margin-bottom: 16px;
}

.cate-hero-content h1 span {
  display: inline-block;
  background: var(--energy-orange);
  width: 8px;
  height: 8px;
  border-radius: 2px;
  margin-right: 6px;
  vertical-align: middle;
}

.cate-hero-content p {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.8;
  max-width: 560px;
}

.cate-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}

.cate-hero-tags .tag {
  background: rgba(255, 106, 53, 0.14);
  color: #FFB787;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 500;
}

.hero-badge {
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px;
  padding: 16px 26px;
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
  box-shadow: var(--shadow-dark);
}

.hero-badge .badge-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--energy-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.hero-badge .badge-icon svg {
  width: 22px;
  height: 22px;
}

.hero-badge .badge-num {
  font-family: var(--font-num);
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--energy-orange);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.hero-badge .badge-label {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.78rem;
  line-height: 1.4;
}

.hero-badge .badge-label strong {
  display: block;
  color: #FBF7EF;
  font-size: 0.85rem;
  font-weight: 600;
}

/* ===== Timeline ===== */
.timeline-section {
  background: var(--sand-bg);
  padding-top: 48px;
}

.timeline-list {
  position: relative;
  max-width: 920px;
  margin: 0 auto;
}

.timeline-list::before {
  content: "";
  position: absolute;
  left: 24px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--energy-orange), rgba(255, 106, 53, 0.15));
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  padding-left: 72px;
  margin-bottom: 32px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: 14px;
  top: 26px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--sand-bg);
  border: 4px solid var(--energy-orange);
  box-shadow: 0 0 0 6px rgba(255, 106, 53, 0.12);
}

.timeline-date {
  position: absolute;
  left: 72px;
  top: -4px;
  font-size: 0.85rem;
  color: var(--text-weak);
  font-weight: 600;
  white-space: nowrap;
  letter-spacing: 0.3px;
}

.tl-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--line-dark);
  box-shadow: var(--shadow-card);
  display: flex;
  gap: 0;
  overflow: hidden;
  margin-top: 30px;
  transition: box-shadow .3s ease, transform .3s ease;
}

.tl-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.tl-thumb {
  width: 260px;
  min-height: 180px;
  flex-shrink: 0;
  overflow: hidden;
  background: #EAF0EC;
}

.tl-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .45s ease;
}

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

.tl-content {
  padding: 24px 26px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex: 1;
}

.tl-content .tag {
  display: inline-block;
  background: var(--tag-bg);
  color: var(--tag-text);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-tag);
  margin-bottom: 12px;
  align-self: flex-start;
}

.tl-content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-strong);
  line-height: 1.45;
  margin-bottom: 8px;
}

.tl-content h3 a {
  transition: color .25s ease;
}

.tl-content h3 a:hover {
  color: var(--energy-orange);
}

.tl-content p {
  color: var(--text-weak);
  font-size: 0.9rem;
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 14px;
}

.tl-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--text-weak);
}

.tl-meta .read-more {
  color: var(--energy-orange);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap .25s ease;
}

.tl-meta .read-more:hover {
  gap: 8px;
}

/* ===== Coverage Features ===== */
.coverage-section {
  background: #fff;
}

.coverage-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.coverage-card {
  background: var(--sand-bg);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  position: relative;
  overflow: hidden;
  transition: box-shadow .3s ease, transform .3s ease;
}

.coverage-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--energy-orange), #FFB787);
  border-radius: 4px 4px 0 0;
}

.coverage-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.coverage-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--deep-green);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.coverage-icon svg {
  width: 26px;
  height: 26px;
}

.coverage-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-strong);
  margin-bottom: 12px;
}

.coverage-card p {
  color: var(--text-weak);
  font-size: 0.92rem;
  line-height: 1.75;
  margin-bottom: 16px;
}

.coverage-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.coverage-list .tag {
  background: #fff;
  border: 1px solid var(--line);
  color: var(--text-main);
  font-size: 0.78rem;
  padding: 4px 10px;
  border-radius: 999px;
  font-weight: 500;
}

/* ===== Stats Band ===== */
.stats-band {
  background: linear-gradient(135deg, var(--deep-green) 0%, var(--dark-green) 80%);
  color: #FBF7EF;
  position: relative;
  overflow: hidden;
}

.stats-band::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: rgba(255, 106, 53, 0.12);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  position: relative;
  z-index: 2;
}

.stat-item {
  text-align: center;
  padding: 8px;
}

.stat-num {
  font-family: var(--font-num);
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 800;
  color: var(--energy-orange);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  margin-bottom: 6px;
}

.stat-label {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.88rem;
  font-weight: 500;
}

/* ===== Process Steps ===== */
.process-section {
  background: var(--sand-bg);
}

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

.process-card {
  background: var(--card-bg);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  position: relative;
  box-shadow: var(--shadow-card);
  transition: box-shadow .3s ease, transform .3s ease;
}

.process-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.process-card .step-num {
  font-family: var(--font-num);
  font-size: 2.6rem;
  font-weight: 900;
  color: var(--energy-orange);
  line-height: 1;
  opacity: 0.85;
  margin-bottom: 14px;
  font-style: italic;
}

.process-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-strong);
  margin-bottom: 10px;
}

.process-card p {
  color: var(--text-weak);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ===== CTA Banner ===== */
.cta-banner {
  background: linear-gradient(100deg, var(--deep-green) 0%, var(--dark-green) 100%);
  border-radius: 28px;
  padding: 56px 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-dark);
}

.cta-banner::before,
.cta-banner::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
}

.cta-banner::before {
  width: 180px;
  height: 180px;
  bottom: -60px;
  left: -50px;
}

.cta-banner::after {
  width: 120px;
  height: 120px;
  top: -40px;
  right: 80px;
}

.cta-banner .cta-text {
  position: relative;
  z-index: 2;
}

.cta-banner .cta-text h2 {
  color: #fff;
  font-size: clamp(1.4rem, 2.4vw, 2rem);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 12px;
}

.cta-banner .cta-text p {
  color: rgba(255, 255, 255, 0.72);
  font-size: 1rem;
  max-width: 440px;
}

.cta-actions {
  display: flex;
  gap: 16px;
  position: relative;
  z-index: 2;
  flex-shrink: 0;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--dark-green);
  color: rgba(255, 255, 255, 0.75);
  border-top: 3px solid var(--energy-orange);
  margin-top: 88px;
}

.site-footer .container {
  padding-top: 52px;
  padding-bottom: 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 4fr 3fr 3fr 2fr;
  gap: 40px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.footer-logo .logo-icon {
  width: 38px;
  height: 38px;
}

.footer-logo .logo-icon svg {
  width: 20px;
  height: 20px;
}

.footer-logo .logo-text strong {
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
}

.footer-logo .logo-text small {
  font-size: 0.52rem;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 1.2px;
}

.footer-desc {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.8;
  max-width: 320px;
}

.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
}

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

.footer-col ul li a {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.88rem;
  position: relative;
  padding-left: 14px;
  transition: color .25s ease;
}

.footer-col ul li a::before {
  content: "#";
  position: absolute;
  left: 0;
  color: var(--energy-orange);
  font-size: 0.78rem;
  opacity: 0.7;
}

.footer-col ul li a:hover {
  color: var(--energy-orange);
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-contact span {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.65);
  word-break: break-all;
}

.footer-contact svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--energy-orange);
}

.footer-bottom {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.45);
}

/* ===== Responsive ===== */
@media (max-width: 1199px) {
  .tl-thumb {
    width: 220px;
  }
  .footer-grid {
    grid-template-columns: 5fr 3fr 3fr;
  }
  .footer-contact {
    grid-column: 2 / -1;
  }
}

@media (max-width: 991px) {
  :root {
    --padding-x: 20px;
    --section-pad: 64px;
  }

  .main-nav,
  .header-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .bottom-tab {
    display: flex;
  }

  body {
    padding-bottom: 56px;
  }

  .cate-hero {
    padding: 56px 0 72px;
  }

  .cate-hero .container {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }

  .hero-badge {
    align-self: flex-start;
  }

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

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

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

  .cta-banner {
    flex-direction: column;
    padding: 40px 32px;
    align-items: flex-start;
  }

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

  .footer-contact {
    grid-column: auto;
  }
}

@media (max-width: 767px) {
  :root {
    --padding-x: 16px;
    --section-pad: 48px;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 30px;
  }

  .section-head p {
    text-align: left;
  }

  .cate-hero h1 {
    font-size: 1.7rem;
  }

  .timeline-list {
    padding-left: 0;
  }

  .timeline-list::before {
    left: 14px;
  }

  .timeline-item {
    padding-left: 44px;
  }

  .timeline-dot {
    left: 6px;
    width: 16px;
    height: 16px;
    border-width: 3px;
    box-shadow: 0 0 0 4px rgba(255, 106, 53, 0.12);
  }

  .timeline-date {
    position: static;
    margin-bottom: 4px;
  }

  .tl-card {
    flex-direction: column;
  }

  .tl-thumb {
    width: 100%;
    min-height: 0;
    height: 180px;
  }

  .tl-content {
    padding: 18px;
  }

  .tl-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .coverage-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .process-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .cta-banner {
    padding: 36px 22px;
    border-radius: 20px;
  }

  .cta-actions {
    flex-direction: column;
    width: 100%;
  }

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

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

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
}

@media (max-width: 520px) {
  .hero-badge {
    padding: 12px 18px;
  }

  .hero-badge .badge-num {
    font-size: 1.6rem;
  }

  .timeline-item {
    padding-left: 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
    scroll-behavior: auto !important;
  }
}

/* roulang page: category3 */
:root{
  --deep-green:#0B3B2C;
  --dark-green:#07271D;
  --orange:#FF6A35;
  --orange-hover:#FF824F;
  --lawn:#2EC97E;
  --sand:#F6F2EA;
  --white:#FFFFFF;
  --cream:#FBF7EF;
  --text:#1E2B24;
  --muted:#7B877F;
  --line:#E8E2D6;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-btn:10px;
  --radius-tag:6px;
  --shadow-card:0 2px 10px rgba(7,39,29,0.06);
  --shadow-hover:0 10px 32px rgba(7,39,29,0.13);
  --font-stack:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-stack);background:var(--sand);color:var(--text);line-height:1.7;font-size:16px}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}
button,input{font:inherit}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(255,106,53,0.45);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:38px}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.2rem);font-weight:800;color:var(--deep-green);position:relative;padding-left:16px;line-height:1.3}
.section-head h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:5px;background:var(--orange);border-radius:4px}
.section-head .sub{color:var(--muted);font-size:.95rem;max-width:360px;text-align:right;line-height:1.6}

/* Header */
.site-header{position:sticky;top:0;z-index:100;background:var(--deep-green);box-shadow:0 2px 18px rgba(7,39,29,0.2)}
.nav-shell{display:flex;align-items:center;justify-content:space-between;height:68px;gap:24px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-icon{width:38px;height:38px;background:var(--orange);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--white);flex-shrink:0}
.logo-icon svg{width:22px;height:22px}
.logo-text strong{display:block;color:var(--white);font-size:1.12rem;line-height:1.1;font-weight:800;letter-spacing:.5px}
.logo-text small{display:block;color:rgba(255,255,255,0.55);font-size:.58rem;letter-spacing:1.6px;line-height:1}
.main-nav{display:flex;align-items:center;gap:30px;margin-left:auto}
.main-nav a{color:rgba(255,255,255,0.85);font-size:.95rem;font-weight:500;padding:8px 2px;position:relative;transition:color .2s}
.main-nav a:hover{color:var(--white)}
.main-nav a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;border-radius:2px;background:var(--orange);transition:width .25s}
.main-nav a:hover::after{width:100%}
.main-nav a.active{color:var(--white)}
.main-nav a.active::after{width:100%;height:3px}
.main-nav a.nav-cta{background:var(--orange);color:var(--white);padding:0 22px;height:40px;display:inline-flex;align-items:center;border-radius:var(--radius-btn);font-weight:600;transition:background .2s,transform .2s,box-shadow .2s}
.main-nav a.nav-cta::after{display:none}
.main-nav a.nav-cta:hover{background:var(--orange-hover);transform:translateY(-2px);box-shadow:0 6px 18px rgba(255,106,53,0.35)}
.nav-toggle{display:none;width:40px;height:40px;background:transparent;border:1px solid rgba(255,255,255,0.25);border-radius:8px;align-items:center;justify-content:center;cursor:pointer;color:var(--white)}
.nav-toggle svg{width:20px;height:20px}
.mobile-menu{position:fixed;inset:0;background:rgba(7,39,29,0.98);z-index:300;display:flex;flex-direction:column;padding:84px 32px 32px;transform:translateX(100%);transition:transform .35s ease;visibility:hidden}
.mobile-menu.open{transform:translateX(0);visibility:visible}
.mobile-menu a{color:var(--cream);font-size:1.25rem;font-weight:600;padding:17px 0;border-bottom:1px solid rgba(255,255,255,0.1);display:flex;align-items:center;gap:12px}
.mobile-menu a.active{color:var(--orange)}
.mobile-menu a.nav-cta{color:var(--orange)}
.menu-close{position:absolute;top:18px;right:24px;width:40px;height:40px;background:transparent;border:1px solid rgba(255,255,255,0.25);border-radius:8px;color:var(--white);display:flex;align-items:center;justify-content:center;cursor:pointer}

/* Category hero */
.category-hero{position:relative;padding:72px 0 90px;background:linear-gradient(130deg,var(--deep-green) 0%,var(--dark-green) 75%);color:var(--cream);overflow:hidden}
.category-hero .bg-layer{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') center 35%/cover;opacity:.16}
.category-hero::after{content:"";position:absolute;left:-10%;right:-10%;bottom:-34px;height:50px;background:var(--sand);border-radius:50% 50% 0 0/100% 100% 0 0;filter:blur(4px)}
.hero-crumb{font-size:.82rem;color:rgba(255,255,255,0.55);margin-bottom:18px;position:relative;z-index:2}
.hero-crumb a{color:rgba(255,255,255,0.75)}
.hero-layout{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;position:relative;z-index:2}
.hero-copy{max-width:640px}
.hero-copy h1{font-size:clamp(1.8rem,3vw,2.6rem);font-weight:800;color:var(--cream);line-height:1.2;margin-bottom:14px}
.hero-copy p{font-size:1rem;color:rgba(255,255,255,0.72);max-width:590px;line-height:1.8}
.hero-badge{display:flex;align-items:center;gap:14px;background:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.22);border-radius:999px;padding:16px 24px;backdrop-filter:blur(6px);min-width:214px;flex-shrink:0}
.badge-icon{width:42px;height:42px;border-radius:50%;background:rgba(255,106,53,0.25);display:flex;align-items:center;justify-content:center;color:var(--orange);flex-shrink:0}
.badge-icon svg{width:20px;height:20px}
.badge-num{font-size:1.9rem;font-weight:800;color:var(--orange);font-variant-numeric:tabular-nums;line-height:1;font-family:"DIN Alternate","Bebas Neue","Impact",var(--font-stack)}
.badge-label span{display:block;font-size:.78rem;color:rgba(255,255,255,0.6);line-height:1.4;white-space:nowrap}

/* Lexicon grid */
.lexicon-grid{background:var(--sand)}
.grid-list{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.lex-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;background:var(--white);box-shadow:var(--shadow-card);border:1px solid var(--line);display:block;transition:transform .3s ease,box-shadow .3s ease}
.lex-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.lex-card .img-wrap{position:relative;aspect-ratio:16/10;overflow:hidden}
.lex-card img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.lex-card:hover img{transform:scale(1.05)}
.lex-card .cover-mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,39,29,0) 38%,rgba(7,39,29,0.88) 100%);transition:background .3s}
.lex-card:hover .cover-mask{background:linear-gradient(180deg,rgba(7,39,29,0) 28%,rgba(7,39,29,0.92) 100%)}
.lex-info{position:absolute;left:22px;right:22px;bottom:20px;z-index:3}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;background:rgba(255,106,53,0.2);color:#FFD9C7;border-radius:var(--radius-tag);font-size:.76rem;font-weight:500;letter-spacing:.2px;margin-bottom:10px}
.lex-info h3{color:var(--white);font-size:1.15rem;line-height:1.4;font-weight:700;margin-bottom:4px}
.lex-info p{color:rgba(255,255,255,0.76);font-size:.88rem;line-height:1.6}

/* Topic cards */
.topic-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-md);padding:30px 26px;box-shadow:var(--shadow-card);transition:transform .3s ease,box-shadow .3s ease}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.topic-icon{width:54px;height:54px;border-radius:16px;background:var(--deep-green);display:flex;align-items:center;justify-content:center;color:var(--orange);margin-bottom:18px}
.topic-icon svg{width:26px;height:26px}
.topic-card h3{font-size:1.12rem;font-weight:700;color:var(--deep-green);margin-bottom:8px}
.topic-card p{font-size:.92rem;color:var(--muted);line-height:1.7}

/* Related nav */
.related-nav{background:var(--sand);padding-bottom:100px}
.related-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{position:relative;border-radius:var(--radius-lg);padding:40px 26px;text-align:center;background:linear-gradient(135deg,var(--deep-green),var(--dark-green));color:var(--cream);transition:transform .3s ease,box-shadow .3s ease;display:block;overflow:hidden}
.related-card:hover{transform:translateY(-5px);box-shadow:0 18px 44px rgba(7,39,29,0.35)}
.related-card .r-icon{width:56px;height:56px;margin:0 auto 18px;border-radius:50%;background:rgba(255,106,53,0.2);display:flex;align-items:center;justify-content:center;color:var(--orange)}
.related-card .r-icon svg{width:26px;height:26px}
.related-card h3{font-size:1.2rem;font-weight:700;color:var(--white);margin-bottom:8px}
.related-card p{font-size:.88rem;color:rgba(255,255,255,0.65);line-height:1.7;margin-bottom:18px}
.r-link{display:inline-flex;align-items:center;gap:6px;color:var(--orange);font-size:.88rem;font-weight:600}
.r-link svg{width:16px;height:16px}

/* Footer */
.site-footer{background:var(--dark-green);color:rgba(255,255,255,0.72);border-top:3px solid var(--orange);padding:64px 0 30px}
.footer-grid{display:grid;grid-template-columns:4fr 2.5fr 2.5fr 3fr;gap:40px;padding-bottom:40px}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-logo .logo-icon{background:var(--orange);color:var(--white)}
.footer-logo .logo-text strong{color:#fff}
.footer-logo .logo-text small{color:rgba(255,255,255,0.55)}
.footer-desc{font-size:.92rem;line-height:1.75;max-width:340px;color:rgba(255,255,255,0.6)}
.footer-col h4{color:#fff;font-size:1rem;font-weight:600;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{color:rgba(255,255,255,0.65);font-size:.92rem;transition:color .2s;line-height:1.5}
.footer-col ul a:hover{color:var(--orange)}
.footer-contact span{display:flex;align-items:center;gap:8px;font-size:.9rem;margin-bottom:12px;color:rgba(255,255,255,0.65)}
.footer-contact svg{width:18px;height:18px;color:var(--orange);flex-shrink:0}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;border-top:1px solid rgba(255,255,255,0.1);padding-top:22px;font-size:.84rem;color:rgba(255,255,255,0.5)}

/* Bottom tab */
.bottom-tab{display:none;position:fixed;left:0;right:0;bottom:0;height:56px;background:var(--white);border-top:1px solid var(--line);z-index:1000}
.bottom-tab a{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:11px;color:var(--muted);transition:color .2s}
.bottom-tab a.active{color:var(--orange);font-weight:600}
.bottom-tab a svg{width:20px;height:20px}

/* Responsive */
@media(max-width:1199px){
  .hero-layout{gap:20px}
  .hero-badge{min-width:190px;padding:14px 18px}
  .badge-num{font-size:1.6rem}
}
@media(max-width:991px){
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .bottom-tab{display:flex}
  body{padding-bottom:72px}
  .hero-layout{flex-direction:column;align-items:flex-start}
  .hero-badge{min-width:0}
  .related-cards,.topics-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .section{padding:64px 0}
}
@media(max-width:767px){
  .grid-list{grid-template-columns:1fr}
  .related-cards,.topics-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .section{padding:48px 0}
  .hero-badge{width:100%}
  .footer-bottom{flex-direction:column;text-align:center}
  .footer-contact span{justify-content:center}
}