/* roulang page: index */
:root {
  --page-bg: #F6F7F3;
  --card-bg: #FFFFFF;
  --ink: #17211B;
  --text: #2B3631;
  --muted: #5E6C64;
  --subtle: #949E96;
  --line: rgba(23, 33, 27, 0.10);
  --green: #168A54;
  --green-hover: #0A6B40;
  --green-soft: #E4F2EA;
  --lime: #8FE0B0;
  --orange: #FF7A26;
  --deep: #12211A;
  --deep-2: #15231C;
  --radius-sm: 6px;
  --radius: 8px;
  --radius-lg: 14px;
  --radius-xl: 22px;
  --shadow: 0 6px 18px rgba(19, 35, 27, 0.06);
  --shadow-lg: 0 14px 30px rgba(19, 35, 27, 0.12);
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--page-bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

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

ul, ol {
  list-style: none;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section {
  padding: 96px 0;
}

.section-head {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 40px;
}

.section-index {
  font-size: 64px;
  line-height: 1;
  font-weight: 700;
  color: rgba(22, 138, 84, 0.17);
  letter-spacing: -0.06em;
  user-select: none;
}

.section-head h2 {
  font-size: 34px;
  line-height: 1.25;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.section-head p {
  margin-top: 4px;
  color: var(--muted);
  font-size: 15px;
  max-width: 620px;
}

.section-intro {
  margin-top: -12px;
  margin-bottom: 36px;
  font-size: 17px;
  color: var(--muted);
  max-width: 780px;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: transparent;
  transition: background .3s ease, box-shadow .3s ease;
}

.site-header.scrolled {
  background: var(--deep);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.14);
}

.header-inner {
  height: 72px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--green);
  display: flex;
  align-items: center;
  justify-content: center;
  flex: none;
}

.brand-mark svg {
  width: 22px;
  height: 22px;
}

.brand-name {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #fff;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  justify-content: center;
  gap: 4px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 15px;
  font-weight: 500;
  transition: background .18s, color .18s;
}

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

.nav-link.active {
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
}

.nav-link.active::after {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--lime);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #fff;
  color: var(--deep);
  font-size: 14px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 999px;
  transition: background .2s, transform .2s, box-shadow .2s;
}

.nav-cta:hover {
  background: var(--lime);
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(0, 0, 0, .16);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .2);
}

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

/* Hero */
.hero {
  position: relative;
  min-height: 92vh;
  padding: 120px 0 60px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(246, 247, 243, 0.98) 0%, rgba(246, 247, 243, 0.90) 48%, rgba(227, 235, 228, 0.60) 100%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 64px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(22, 138, 84, 0.09);
  border: 1px solid rgba(22, 138, 84, 0.20);
  color: var(--green);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 24px;
}

.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--orange);
}

.hero h1 {
  font-size: 52px;
  line-height: 1.2;
  letter-spacing: -0.04em;
  color: var(--ink);
  max-width: 620px;
  font-weight: 700;
  margin-bottom: 22px;
}

.hero-lead {
  font-size: 18px;
  line-height: 1.8;
  color: #37433c;
  max-width: 540px;
  margin-bottom: 34px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 42px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 28px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: background .2s, border-color .2s, color .2s, box-shadow .2s, transform .15s;
}

.btn-primary {
  background: var(--green);
  color: #fff;
  box-shadow: 0 6px 18px rgba(22, 138, 84, 0.30);
}

.btn-primary:hover {
  background: var(--green-hover);
  box-shadow: 0 10px 24px rgba(22, 138, 84, 0.34);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(1px);
}

.btn-light {
  background: #fff;
  color: var(--deep);
  border: 1px solid rgba(22, 33, 27, 0.08);
}

.btn-light:hover {
  border-color: rgba(22, 33, 27, 0.25);
  box-shadow: 0 8px 20px rgba(19, 35, 27, 0.10);
}

.btn-ghost-light {
  background: transparent;
  border: 1px solid var(--lime);
  color: var(--lime);
}

.btn-ghost-light:hover {
  background: rgba(255, 255, 255, 0.06);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--ink);
  border-bottom: 1px solid transparent;
  transition: border-color .2s, color .2s;
}

.text-link i {
  font-style: normal;
  transition: transform .2s;
}

.text-link:hover {
  color: var(--green-hover);
  border-bottom-color: rgba(22, 138, 84, 0.35);
}

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

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-trust li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.68);
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: #516158;
  font-size: 13px;
  font-weight: 500;
}

.trust-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--orange);
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-frame {
  width: min(430px, 100%);
  position: relative;
}

.hero-frame::before {
  content: "";
  position: absolute;
  inset: -18px auto auto 42px;
  width: 100%;
  height: 100%;
  border: 2px solid rgba(22, 138, 84, 0.45);
  border-radius: 16px;
  z-index: -1;
  opacity: 0.7;
}

.hero-frame::after {
  content: "";
  position: absolute;
  inset: auto 24px -22px auto;
  width: 130px;
  height: 130px;
  background-image: radial-gradient(var(--orange) 2px, transparent 2.5px);
  background-size: 14px 14px;
  opacity: 0.28;
  z-index: -1;
}

.hero-frame img {
  width: 100%;
  aspect-ratio: 4 / 4.55;
  object-fit: cover;
  border-radius: 18px;
  box-shadow: 0 26px 60px rgba(20, 42, 28, 0.20);
}

.hero-frame-tag {
  position: absolute;
  left: 18px;
  bottom: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(18, 33, 26, 0.86);
  backdrop-filter: blur(8px);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 999px;
}

.hero-frame-tag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--lime);
}

/* Channel strip */
.channel-strip {
  padding: 0 0 36px;
  position: relative;
  margin-top: -12px;
}

.strip-inner {
  display: flex;
  align-items: center;
  gap: 10px;
  overflow-x: auto;
  padding: 12px 2px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.strip-inner::-webkit-scrollbar {
  display: none;
}

.strip-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex: none;
  padding: 8px 16px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--line);
  color: #2f3d35;
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(19, 35, 27, 0.03);
  transition: all .18s;
}

.strip-pill i {
  font-style: normal;
  color: var(--green);
  transition: transform .18s;
}

.strip-pill:hover {
  border-color: rgba(22, 138, 84, 0.45);
  color: var(--green-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(19, 35, 27, 0.08);
}

.strip-pill:hover i {
  transform: translateX(3px);
}

.strip-divider {
  width: 1px;
  height: 20px;
  background: rgba(23, 33, 27, 0.10);
  flex: none;
}

/* Guide steps */
.guide-section {
  background: linear-gradient(180deg, #fff 0%, var(--page-bg) 100%);
  position: relative;
  padding-top: 100px;
}

.runway {
  position: relative;
  margin-top: 20px;
}

.runway::before {
  content: "";
  position: absolute;
  left: 20px;
  right: 20px;
  top: 27px;
  height: 2px;
  border-top: 2px dashed rgba(22, 138, 84, 0.24);
}

.runway-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.runway-item {
  background: rgba(255, 255, 255, 0.78);
  border-radius: var(--radius-lg);
  padding: 24px 22px;
  border: 1px solid var(--line);
  box-shadow: 0 4px 14px rgba(19, 35, 27, 0.03);
  transition: box-shadow .2s, transform .2s;
}

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

.runway-num {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--green);
  color: var(--green);
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-variant-numeric: tabular-nums;
}

.runway-item h3 {
  font-size: 19px;
  color: var(--ink);
  margin-bottom: 10px;
  line-height: 1.4;
}

.runway-item p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

.runway-arrow {
  position: absolute;
  top: 24px;
  color: var(--green);
  font-size: 18px;
  z-index: 2;
  background: var(--page-bg);
  padding: 0 8px;
  font-style: normal;
}

/* News */
.news-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  align-items: stretch;
}

.news-feature {
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--line);
  overflow: hidden;
  box-shadow: var(--shadow);
  margin: 0;
  display: flex;
}

.feature-link {
  display: flex;
  flex-direction: column;
  padding: 28px;
  width: 100%;
  transition: box-shadow .2s;
}

.feature-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.5;
}

.tag-green {
  background: var(--green-soft);
  color: var(--green-hover);
}

.feature-meta time {
  color: var(--subtle);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

.feature-link h3 {
  font-size: 28px;
  line-height: 1.35;
  color: var(--ink);
  margin-bottom: 14px;
  transition: color .18s;
  letter-spacing: -0.01em;
}

.feature-link p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
  margin-bottom: 22px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.feature-more {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--green);
  font-weight: 600;
  font-size: 14px;
  transition: gap .18s;
}

.feature-more i {
  font-style: normal;
}

.feature-link:hover h3 {
  color: var(--green-hover);
}

.feature-link:hover .feature-more {
  gap: 12px;
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 8px 24px 0;
  margin: 0;
}

.news-item {
  border-bottom: 1px solid var(--line);
  padding: 16px 0;
}

.news-item:last-child {
  border-bottom: none;
}

.news-item a {
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: var(--text);
  transition: color .15s;
}

.news-item a:hover {
  color: var(--green-hover);
}

.news-title-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  justify-content: space-between;
}

.news-title {
  font-weight: 600;
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink);
  flex: 1;
}

.news-title-row time {
  color: var(--subtle);
  font-size: 12px;
  flex: none;
}

.news-summary {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-empty {
  background: #fff;
  border: 1px dashed rgba(22, 138, 84, 0.30);
  border-radius: var(--radius-lg);
  padding: 60px 24px;
  text-align: center;
  color: var(--muted);
  min-height: 200px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 14px;
}

.empty-badge {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--green-soft);
  color: var(--green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
}

/* Rewards */
.rewards-area {
  background: linear-gradient(0deg, var(--page-bg), #eef2ec);
}

.rewards-grid {
  display: grid;
  grid-template-columns: 1fr 1.08fr 1fr;
  gap: 20px;
  align-items: end;
  margin-top: 24px;
}

.reward-card {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: 24px;
  position: relative;
  transition: transform .2s, box-shadow .2s;
}

.reward-card.reward-side {
  margin-bottom: 18px;
}

.reward-card.reward-main {
  border-top: 4px solid var(--green);
  padding: 34px 26px 28px;
  box-shadow: var(--shadow-lg);
  z-index: 1;
}

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

.reward-card.reward-side:hover {
  transform: translateY(-2px);
}

.reward-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  background: rgba(22, 33, 27, 0.04);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.reward-main .reward-label {
  background: var(--green-soft);
  color: var(--green-hover);
}

.reward-icon {
  width: 50px;
  height: 50px;
  border-radius: 13px;
  background: linear-gradient(135deg, #f2fcf5, #d8efe2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.reward-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--green);
}

.reward-card h3 {
  font-size: 21px;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
  color: var(--ink);
}

.reward-main h3 {
  font-size: 25px;
}

.reward-desc {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.75;
  margin-bottom: 16px;
}

.reward-condition {
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--subtle);
  line-height: 1.65;
}

.reward-condition strong {
  color: var(--text);
  font-weight: 600;
}

.reward-condition span {
  color: var(--orange);
  font-weight: 600;
}

/* Progress dark band */
.progress-band {
  background: var(--deep);
  color: #fff;
  padding: 96px 0;
  position: relative;
  overflow: hidden;
}

.progress-band .band-watermark {
  position: absolute;
  right: -30px;
  bottom: -60px;
  font-size: 160px;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.04);
  line-height: 1;
  pointer-events: none;
  user-select: none;
  letter-spacing: -0.08em;
}

.progress-band h2 {
  color: #fff;
  font-size: 36px;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.progress-band .lead-line {
  color: rgba(255, 255, 255, 0.68);
  margin-top: 12px;
  max-width: 560px;
}

.progress-wrap {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 56px;
  margin-top: 50px;
  position: relative;
  z-index: 2;
}

.progress-copy .btn {
  margin-top: 34px;
}

.milestones {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

.milestone {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  position: relative;
  padding-bottom: 24px;
}

.milestone:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 42px;
  bottom: 0;
  width: 2px;
  background: rgba(255, 255, 255, 0.12);
}

.milestone-badge {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--lime);
  background: var(--deep);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--lime);
  font-size: 13px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.milestone.state-current .milestone-badge {
  border-color: var(--orange);
  color: var(--orange);
  box-shadow: 0 0 0 5px rgba(255, 122, 38, 0.10);
}

.milestone h3 {
  font-size: 17px;
  color: #fff;
  margin-bottom: 4px;
  padding-top: 4px;
}

.milestone p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.60);
  line-height: 1.65;
}

.progress-track-meta {
  margin-top: 8px;
  display: flex;
  gap: 12px;
  color: rgba(255, 255, 255, 0.52);
  font-size: 13px;
  flex-wrap: wrap;
}

/* Doc cards */
.doc-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.doc-card {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  overflow: hidden;
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 230px;
  transition: box-shadow .2s, transform .2s;
}

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

.doc-card-image {
  overflow: hidden;
  background: #e5eee8;
}

.doc-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.doc-card-body {
  padding: 26px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.doc-card-body h3 {
  font-size: 21px;
  color: var(--ink);
  margin-bottom: 10px;
}

.doc-card-body p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
  flex: 1;
}

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

.doc-link i {
  font-style: normal;
  transition: transform .18s;
}

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

/* FAQ */
.faq-area {
  background: #fff;
}

.faq-grid {
  max-width: 860px;
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-item:first-child {
  border-top: 1px solid var(--line);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 0;
  text-align: left;
  color: var(--ink);
  font-size: 17px;
  font-weight: 600;
  transition: color .15s;
}

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

.faq-question .faq-sign {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--green-soft);
  color: var(--green-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  flex: none;
  transition: transform .2s, background .2s;
}

.faq-question .faq-arrow {
  margin-left: auto;
  color: var(--subtle);
  font-style: normal;
  transition: transform .2s;
}

.faq-item[aria-expanded="true"] .faq-arrow {
  transform: rotate(180deg);
  color: var(--green);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .25s ease;
}

.faq-answer-inner {
  padding: 2px 40px 22px 38px;
  color: #46514b;
  font-size: 16px;
  line-height: 1.8;
}

.faq-answer-inner p + p {
  margin-top: 10px;
}

/* CTA */
.cta-section {
  padding: 80px 0;
}

.cta-panel {
  background: linear-gradient(128deg, var(--deep) 0%, #1e3c29 100%);
  border-radius: var(--radius-xl);
  padding: 56px 72px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.cta-panel::before {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  width: 90px;
  height: 90px;
  background-image: radial-gradient(var(--lime) 1.8px, transparent 2px);
  background-size: 12px 12px;
  opacity: .2;
}

.cta-panel h2 {
  color: #fff;
  font-size: 34px;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin-bottom: 12px;
}

.cta-panel p {
  color: rgba(255, 255, 255, 0.66);
  font-size: 16px;
  max-width: 600px;
  line-height: 1.7;
}

.cta-panel .cta-actions {
  flex: none;
  display: flex;
  gap: 12px;
  position: relative;
  z-index: 2;
}

/* Footer */
.site-footer {
  background: var(--deep);
  color: rgba(255, 255, 255, 0.7);
}

.footer-main {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1fr;
  gap: 56px;
  padding: 64px 0 48px;
}

.footer-brand .brand-name {
  font-size: 21px;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.brand-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--orange);
  display: inline-block;
}

.footer-about {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.54);
  line-height: 1.8;
  max-width: 360px;
}

.footer-title {
  font-size: 15px;
  color: #fff;
  font-weight: 600;
  margin-bottom: 16px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.footer-title::before {
  content: "";
  width: 4px;
  height: 16px;
  border-radius: 2px;
  background: var(--green);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.60);
  transition: color .18s, transform .18s;
}

.footer-links a:hover {
  color: var(--lime);
  transform: translateX(3px);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.10);
  padding: 20px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  justify-content: space-between;
  color: rgba(255, 255, 255, 0.48);
  font-size: 13px;
}

.footer-legal {
  display: flex;
  gap: 16px;
}

/* Mobile etc */
@media (max-width: 1199px) {
  .hero h1 {
    font-size: 46px;
  }

  .hero-inner {
    gap: 40px;
  }

  .doc-card {
    grid-template-columns: 1fr;
  }

  .doc-card-image {
    height: 160px;
  }

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

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 991px) {
  .section {
    padding: 72px 0;
  }

  .header-inner {
    gap: 16px;
  }

  .main-nav {
    position: absolute;
    top: 72px;
    left: 12px;
    right: 12px;
    background: var(--deep);
    border-radius: 16px;
    flex-direction: column;
    padding: 14px;
    gap: 4px;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.20);
    display: none;
  }

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

  .nav-link {
    width: 100%;
    border-radius: 12px;
    padding: 12px 14px;
  }

  .nav-cta {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .hero {
    min-height: auto;
    padding: 130px 0 72px;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 54px;
  }

  .hero h1 {
    font-size: 44px;
  }

  .hero-frame {
    width: min(420px, 100%);
    margin: 0 auto;
  }

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

  .runway::before {
    display: none;
  }

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

  .rewards-grid {
    grid-template-columns: 1fr 1fr;
    align-items: stretch;
  }

  .reward-card.reward-main {
    grid-column: 1 / -1;
    order: -1;
    max-width: 380px;
    margin: 0 auto;
  }

  .progress-wrap {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .doc-cards {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 767px) {
  .section {
    padding: 56px 0;
  }

  .header-inner {
    height: 64px;
  }

  .main-nav {
    top: 64px;
  }

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

  .brand-mark {
    width: 30px;
    height: 30px;
  }

  .hero {
    padding: 110px 0 56px;
  }

  .hero h1 {
    font-size: 34px;
    line-height: 1.25;
  }

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

  .hero-actions {
    gap: 14px;
  }

  .section-head {
    align-items: flex-start;
    gap: 10px;
  }

  .section-index {
    font-size: 36px;
  }

  .section-head h2 {
    font-size: 28px;
  }

  .section-head p {
    font-size: 14px;
  }

  .runway-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .runway-item {
    padding: 20px 18px;
  }

  .feature-link {
    padding: 22px;
  }

  .feature-link h3 {
    font-size: 23px;
  }

  .news-list {
    padding-left: 18px;
    padding-right: 18px;
  }

  .news-title-row {
    flex-direction: column;
    gap: 0;
  }

  .news-title-row time {
    font-size: 12px;
  }

  .rewards-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .reward-card.reward-main {
    grid-column: 1 / -1;
    order: 0;
  }

  .progress-band .band-watermark {
    display: none;
  }

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

  .footer-cols {
    gap: 16px;
  }

  .cta-section {
    padding: 50px 0;
  }

  .cta-panel {
    padding: 30px 24px;
  }

  .cta-panel h2 {
    font-size: 27px;
  }

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

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

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

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

  .nav-cta {
    display: none;
  }
}

/* roulang page: article */
:root{
  --bg:#F6F7F3;
  --surface:#FFFFFF;
  --ink:#17211B;
  --body:#2B3631;
  --muted:#5E6C64;
  --faint:#949E96;
  --brand:#168A54;
  --brand-deep:#0A6B40;
  --brand-soft:#E4F2EA;
  --accent:#FF7A26;
  --border:rgba(23,33,27,.1);
  --shadow-sm:0 6px 18px rgba(19,35,27,.06);
  --shadow-lg:0 14px 30px rgba(19,35,27,.12);
  --radius:8px;
  --radius-lg:14px;
  --container:1200px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--body);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .15s ease}
a:hover{color:var(--brand-deep)}
button,input,textarea{font-family:inherit}
button:focus-visible,
a:focus-visible{
  outline:3px solid rgba(22,138,84,.35);
  outline-offset:2px;
  border-radius:6px;
}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
ul,ol{padding-left:1.4em}
.hidden{display:none!important}

/* 按钮系统 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:10px 24px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1.4;
  background:var(--brand);
  color:#fff;
  cursor:pointer;
  text-decoration:none;
  transition:background .15s,transform .1s,box-shadow .15s,border-color .15s;
}
.btn:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(22,138,84,.18)}
.btn:active{transform:translateY(1px)}
.btn-ghost{
  background:transparent;
  border:1px solid #C4D0C9;
  color:var(--brand);
}
.btn-ghost:hover{background:#EAF5EE;border-color:var(--brand);color:var(--brand-deep)}
.btn-small{min-height:38px;padding:6px 18px;font-size:14px}

/* 顶部通用导航 */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  min-height:68px;
  background:rgba(246,247,243,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(23,33,27,.04);
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.scrolled{
  background:#12211A;
  border-bottom-color:rgba(255,255,255,.08);
  box-shadow:0 6px 24px rgba(7,18,12,.22);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:68px;
}
.site-logo{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:20px;
  font-weight:800;
  color:var(--ink);
  letter-spacing:-.2px;
  white-space:nowrap;
  transition:color .2s;
}
.site-logo::before{
  content:"";
  width:18px;height:18px;
  background:var(--brand);
  border-radius:4px 4px 8px 4px;
  box-shadow:0 0 0 3px rgba(22,138,84,.12);
  flex:none;
}
.site-header.scrolled .site-logo{color:#F2F6F3}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
  flex:1;
  justify-content:center;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:6px 14px;
  border-radius:999px;
  font-size:15px;
  font-weight:500;
  color:#34423A;
  transition:color .18s,background .18s;
}
.nav-link:hover{color:var(--brand-deep);background:rgba(22,138,84,.08)}
.nav-link.active{
  color:var(--brand-deep);
  background:var(--brand-soft);
  font-weight:700;
}
.site-header.scrolled .nav-link{color:rgba(225,237,231,.82)}
.site-header.scrolled .nav-link:hover{color:#fff;background:rgba(255,255,255,.1)}
.site-header.scrolled .nav-link.active{color:#fff;background:var(--brand);box-shadow:0 4px 16px rgba(22,138,84,.3)}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:0;
  border-radius:10px;
  background:rgba(22,138,84,.08);
  color:var(--ink);
  cursor:pointer;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.nav-toggle span{display:block;width:20px;height:2px;background:currentColor;border-radius:2px;transition:transform .2s,opacity .2s}
.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-open .nav-toggle span:nth-child(2){opacity:0}
.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 文章主体 */
.article-main{padding-top:112px;padding-bottom:96px}
.breadcrumb-wrap{margin-bottom:22px}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--muted);
}
.breadcrumb a{color:var(--muted);transition:color .15s}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#C9CFCB}
.breadcrumb .current{color:#39463E;font-weight:600}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 276px;
  gap:32px;
  align-items:start;
}
.post-column{min-width:0}
.article-card{
  background:var(--surface);
  border-radius:var(--radius-lg);
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
  padding:40px 44px 32px;
  transition:box-shadow .2s ease;
}
.article-card:hover{box-shadow:var(--shadow-lg)}
.article-head{
  padding-bottom:26px;
  border-bottom:1px solid var(--border);
}
.post-meta-line{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.post-badge{
  display:inline-flex;
  align-items:center;
  min-height:24px;
  padding:0 12px;
  border-radius:5px;
  background:var(--brand-soft);
  color:var(--brand-deep);
  font-size:13px;
  font-weight:700;
  letter-spacing:.2px;
}
.post-date{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  color:var(--muted);
}
.post-date::before{
  content:"";
  width:4px;height:4px;
  border-radius:50%;
  background:var(--accent);
}
.post-title{
  font-size:42px;
  line-height:1.28;
  font-weight:800;
  color:var(--ink);
  letter-spacing:-.4px;
  margin:0 0 14px;
  word-break:break-word;
}
.post-source-line{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
  font-size:14px;
  color:var(--muted);
}
.post-source-line strong{color:var(--ink);font-weight:600}
.share-mini{
  display:inline-flex;
  gap:8px;
  align-items:center;
  padding:4px 12px;
  border-radius:999px;
  background:#F1F4F0;
  color:var(--muted);
  font-size:13px;
}
/* 正文排版 */
.post-body{
  padding-top:28px;
  max-width:820px;
  color:#333D36;
  font-size:17px;
  line-height:1.9;
  word-break:break-word;
}
.post-body > * + *{margin-top:1.1em}
.post-body h2{
  font-size:28px;
  color:var(--ink);
  font-weight:800;
  line-height:1.4;
  margin:1.6em 0 .5em;
  padding-left:15px;
  border-left:4px solid var(--brand);
}
.post-body h3{
  font-size:21px;
  color:var(--ink);
  font-weight:700;
  line-height:1.5;
  margin:1.5em 0 .4em;
}
.post-body h4{font-size:18px;color:var(--ink);font-weight:700}
.post-body p{color:#333D36;line-height:1.9;margin:.8em 0}
.post-body a{color:var(--brand);font-weight:600;border-bottom:1px solid rgba(22,138,84,.25)}
.post-body a:hover{border-bottom-color:var(--brand)}
.post-body img{max-width:100%;height:auto;border-radius:12px;margin:1.2em 0;box-shadow:var(--shadow-sm)}
.post-body blockquote{
  margin:1.4em 0;
  padding:16px 22px;
  border-left:4px solid var(--brand);
  background:#F1F5F1;
  border-radius:0 10px 10px 0;
  color:#455249;
}
.post-body ul,.post-body ol{padding-left:1.5em;margin:.8em 0}
.post-body li{margin:.3em 0}
.post-body code{background:#EEF2EE;border-radius:5px;padding:2px 7px;font-size:.9em;color:#166347}

/* 正文底部操作 */
.post-footline{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:14px;
  margin-top:24px;
  padding:20px 4px 0;
  border-top:1px solid var(--border);
}
.tag-list{display:flex;align-items:center;flex-wrap:wrap;gap:8px}
.tag-item{
  display:inline-flex;
  align-items:center;
  padding:4px 14px;
  border-radius:999px;
  background:#F0F3EF;
  color:var(--muted);
  border:1px solid var(--border);
  font-size:13px;
}
.btn-copy{
  min-height:38px;
  padding:7px 20px;
  border-radius:999px;
  border:1px solid var(--border);
  background:#fff;
  color:var(--brand);
  font-weight:600;
  font-size:14px;
  cursor:pointer;
  transition:all .15s;
}
.btn-copy:hover{border-color:var(--brand);background:var(--brand-soft)}
.post-return-row{
  margin-top:18px;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
}
.post-return-row a{color:var(--muted);border-bottom:1px dashed var(--border)}
.post-return-row a:hover{color:var(--brand);border-bottom-color:var(--brand)}

/* 侧栏 */
.post-aside{
  position:sticky;
  top:96px;
  display:flex;
  flex-direction:column;
  gap:18px;
}
.side-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:12px;
  box-shadow:var(--shadow-sm);
  padding:22px;
}
.side-title{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:800;
  color:var(--ink);
  margin-bottom:16px;
}
.side-title::before{content:"";width:4px;height:18px;background:var(--brand);border-radius:4px}
.side-meta{list-style:none;padding:0;margin:0;font-size:14px}
.side-meta li{
  padding:9px 0;
  border-bottom:1px dashed var(--border);
  display:flex;
  justify-content:space-between;
  gap:12px;
}
.side-meta li:last-child{border-bottom:0}
.side-meta span{color:var(--muted);flex:none}
.side-meta strong{color:var(--ink);font-weight:600;text-align:right;word-break:break-word}
.side-links{list-style:none;padding:0;margin:0}
.side-links li{
  margin:0;
  border-bottom:1px dashed var(--border);
}
.side-links li:last-child{border-bottom:0}
.side-links a{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:10px;
  padding:11px 2px;
  color:#374239;
  font-size:15px;
  transition:color .15s,padding-left .15s;
}
.side-links a:hover{color:var(--brand);padding-left:6px}
.side-links a::after{content:"→";color:var(--faint);font-weight:400}
.side-back{
  display:block;
  margin-top:16px;
  text-align:center;
  padding:9px 16px;
  border-radius:999px;
  border:1px solid var(--border);
  font-size:14px;
  color:var(--brand);
  transition:all .15s;
}
.side-back:hover{border-color:var(--brand);background:var(--brand-soft)}

/* 延伸阅读 */
.read-next{
  margin-top:58px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:16px;
  padding:42px;
  box-shadow:var(--shadow-sm);
}
.section-label{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  color:var(--brand);
  letter-spacing:.15em;
  text-transform:uppercase;
}
.self-section-head h2{
  margin-top:8px;
  font-size:28px;
  color:var(--ink);
  font-weight:800;
  line-height:1.4;
}
.related-grid{
  margin-top:26px;
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
}
.related-card{
  display:block;
  border-radius:12px;
  overflow:hidden;
  background:#fff;
  border:1px solid var(--border);
  transition:box-shadow .18s,transform .18s;
}
.related-card:hover{
  box-shadow:var(--shadow-lg);
  transform:translateY(-3px);
}
.related-card .thumb{
  aspect-ratio:16/10;
  overflow:hidden;
  background:#EDF1EC;
  display:flex;
  align-items:center;
  justify-content:center;
}
.related-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.related-card:hover .thumb img{transform:scale(1.04)}
.related-body{padding:20px 22px 22px}
.related-body h3{
  font-size:18px;
  font-weight:800;
  color:var(--ink);
  margin-bottom:8px;
  line-height:1.45;
  transition:color .15s;
}
.related-card:hover h3{color:var(--brand)}
.related-card p{font-size:14px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.related-more{margin-top:8px;font-size:14px;font-weight:600;color:var(--brand)}

/* 内容未找到 */
.article-missing{
  max-width:680px;
  margin:40px auto 0;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:16px;
  box-shadow:var(--shadow-sm);
  padding:64px 40px;
  text-align:center;
}
.missing-mark{
  width:74px;height:74px;
  border-radius:20px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:28px;
  font-weight:800;
  display:flex;
  align-items:center;
  justify-content:center;
  margin:0 auto 24px;
}
.article-missing h1{font-size:30px;color:var(--ink);font-weight:800;margin-bottom:10px}
.article-missing p{color:var(--muted);font-size:15px;margin-bottom:26px}

/* 页脚 */
.site-footer{
  background:#12211A;
  color:#B6C3BC;
  padding-top:70px;
  padding-bottom:32px;
}
.footer-main{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr;
  gap:48px;
  padding-bottom:46px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand .brand-name{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:22px;
  font-weight:800;
  color:#EEF4F0;
  letter-spacing:-.2px;
}
.footer-brand .brand-dot{width:8px;height:8px;border-radius:50%;background:#8FE0B0;display:inline-block}
.footer-about{
  margin-top:16px;
  max-width:390px;
  font-size:14px;
  line-height:1.9;
  color:#93A69B;
}
.footer-title{
  font-size:15px;
  font-weight:800;
  color:#DFEAE3;
  margin-bottom:16px;
  letter-spacing:.4px;
}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{
  color:#9FB2A6;
  font-size:14px;
  transition:color .15s,transform .15s;
}
.footer-links a:hover{color:#8FE0B0;transform:translateX(3px)}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:8px 22px;
  padding-top:24px;
  font-size:13px;
  color:#7C9284;
}

/* 响应式 */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 236px;gap:24px}
  .article-card{padding:32px 28px}
}
@media (max-width:1023px){
  .article-layout{grid-template-columns:1fr}
  .post-aside{position:static;display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:12px}
  .read-next{padding:32px 26px}
  .footer-main{gap:32px}
}
@media (max-width:767px){
  .header-inner{height:64px}
  .main-nav{
    position:fixed;
    inset:64px 0 auto;
    background:#F8FAF6;
    backdrop-filter:blur(18px);
    border-bottom:1px solid var(--border);
    box-shadow:var(--shadow-lg);
    display:flex;
    flex-direction:column;
    align-items:flex-start;
    gap:8px;
    padding:22px 26px;
    z-index:100;
    opacity:0;
    pointer-events:none;
    transform:translateY(-12px);
    transition:opacity .2s,transform .2s,background .2s;
    max-height:calc(100vh - 64px);
    overflow-y:auto;
  }
  .nav-open .main-nav{opacity:1;pointer-events:auto;transform:translateY(0)}
  .main-nav a{width:100%;font-size:16px;padding:11px 14px}
  .site-header.scrolled .main-nav{background:rgba(18,33,26,.98)}
  .nav-toggle{display:inline-flex}
  .header-actions .btn{display:none}
  .article-main{padding-top:88px;padding-bottom:60px}
  .post-title{font-size:30px}
  .article-card{padding:26px 20px}
  .read-next{padding:28px 20px;margin-top:42px}
  .related-grid{grid-template-columns:1fr;gap:14px}
  .post-aside{grid-template-columns:1fr;margin-top:8px}
  .post-footline{flex-direction:column;align-items:flex-start}
  .footer-main{grid-template-columns:1fr;gap:34px;padding-bottom:34px}
}
@media (min-width:551px) and (max-width:1023px){
  .related-grid{gap:16px}
}

/* roulang page: category1 */
:root{
  --bg:#F6F7F3;
  --surface:#FFFFFF;
  --deep:#12211A;
  --deep2:#15231C;
  --brand:#168A54;
  --brand-hover:#0A6B40;
  --brand-soft:#E4F2EA;
  --bright:#8FE0B0;
  --accent:#FF7A26;
  --title:#17211B;
  --text:#2B3631;
  --muted:#5E6C64;
  --line:rgba(23,33,27,.10);
  --light-line:rgba(255,255,255,.14);
  --radius:12px;
  --radius-sm:8px;
  --shadow:0 6px 18px rgba(19,35,27,.06);
  --shadow-lg:0 14px 30px rgba(19,35,27,.12);
  --transition:all .22s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",Arial,sans-serif;
  line-height:1.8;
  font-size:16px;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,dl,dd{
  margin:0;
}
ul,ol{list-style:none;padding:0}
a{color:inherit}
img{display:block;max-width:100%}
button{font-family:inherit}
:focus-visible{
  outline:3px solid var(--brand);
  outline-offset:3px;
}
.container{
  width:min(1200px,calc(100% - 48px));
  margin-inline:auto;
}
.section{
  padding:96px 0;
}
.section-head{
  max-width:780px;
  margin-bottom:52px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.88rem;
  font-weight:700;
  letter-spacing:.12em;
  color:var(--brand);
  text-transform:uppercase;
}
.eyebrow::before{
  content:"";
  width:24px;
  height:2px;
  background:var(--accent);
  border-radius:2px;
}
.section-title{
  font-size:clamp(2rem,4vw,2.8rem);
  line-height:1.3;
  color:var(--title);
  margin:14px 0 18px;
  font-weight:800;
  letter-spacing:-.02em;
}
.section-desc{
  font-size:1.05rem;
  color:var(--muted);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 24px;
  border-radius:999px;
  border:1px solid transparent;
  text-decoration:none;
  font-size:.95rem;
  font-weight:700;
  line-height:1;
  background:var(--brand);
  color:#fff;
  transition:var(--transition);
  cursor:pointer;
}
.btn:hover{
  background:var(--brand-hover);
  transform:translateY(-1px);
  box-shadow:0 8px 20px rgba(22,138,84,.18);
}
.btn:active{
  transform:translateY(1px);
  box-shadow:none;
}
.btn-ghost{
  background:transparent;
  border-color:rgba(255,255,255,.5);
  color:#fff;
}
.btn-ghost:hover{
  border-color:#fff;
  background:rgba(255,255,255,.1);
  color:#fff;
}
.btn-light{
  background:#fff;
  color:var(--deep);
}
.btn-light:hover{
  background:var(--bright);
  color:var(--deep);
}
.site-header{
  position:absolute;
  top:0;
  left:0;
  width:100%;
  z-index:100;
  padding:16px 0;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.site-header.scrolled{
  position:fixed;
  background:rgba(18,33,26,.94);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,.1);
  box-shadow:0 8px 24px rgba(0,0,0,.14);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:18px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:1.2rem;
  font-weight:800;
  text-decoration:none;
  letter-spacing:.01em;
  white-space:nowrap;
}
.brand-mark{
  width:36px;
  height:36px;
  border-radius:8px;
  background:rgba(255,255,255,.12);
  border:1.5px solid rgba(255,255,255,.55);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-size:.95rem;
  font-weight:800;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:12px;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:0 15px;
  border-radius:999px;
  color:rgba(255,255,255,.78);
  font-size:.95rem;
  font-weight:600;
  text-decoration:none;
  transition:var(--transition);
}
.nav-link:hover{
  color:#fff;
  background:rgba(255,255,255,.12);
}
.nav-link.active{
  color:#fff;
  background:rgba(255,255,255,.16);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.14);
}
.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.header-actions .btn{
  min-height:38px;
  padding:0 20px;
  font-size:.9rem;
}
.nav-overlay{
  position:fixed;
  inset:0;
  background:rgba(5,12,8,.55);
  opacity:0;
  pointer-events:none;
  transition:opacity .25s ease;
  z-index:95;
}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border:0;
  background:transparent;
  padding:0;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  z-index:120;
}
.nav-toggle span{
  display:block;
  width:22px;
  height:2px;
  background:#fff;
  border-radius:3px;
  margin:3px 0;
  transition:transform .25s ease,opacity .25s ease;
}
body.nav-open{
  overflow:hidden;
}
body.nav-open .nav-overlay{
  opacity:1;
  pointer-events:auto;
}
body.nav-open .nav-toggle span:nth-child(1){
  transform:translateY(5px) rotate(45deg);
}
body.nav-open .nav-toggle span:nth-child(2){
  opacity:0;
}
body.nav-open .nav-toggle span:nth-child(3){
  transform:translateY(-5px) rotate(-45deg);
}
.page-banner{
  position:relative;
  padding:196px 0 78px;
  background-size:cover;
  background-position:center 60%;
  color:#fff;
  overflow:hidden;
}
.page-banner::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(105deg,rgba(5,13,9,.92) 0%,rgba(18,33,26,.72) 55%,rgba(18,33,26,.42) 100%);
}
.page-banner .container{
  position:relative;
  z-index:2;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:.9rem;
  color:rgba(255,255,255,.66);
  margin-bottom:28px;
}
.breadcrumb a{
  color:rgba(255,255,255,.85);
  text-decoration:none;
  transition:color .2s ease;
}
.breadcrumb a:hover{
  color:#fff;
}
.breadcrumb span{
  color:rgba(255,255,255,.4);
}
.banner-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.18);
  font-size:.85rem;
  font-weight:600;
  color:rgba(255,255,255,.88);
  margin-bottom:20px;
}
.banner-kicker::before{
  content:"";
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--accent);
}
.page-title{
  font-size:clamp(2.6rem,6vw,4rem);
  line-height:1.18;
  font-weight:800;
  letter-spacing:-.03em;
  margin:0 0 18px;
  color:#fff;
}
.title-sep{
  margin:0 .14em;
  font-weight:300;
  opacity:.55;
}
.banner-summary{
  max-width:680px;
  font-size:1.08rem;
  line-height:1.9;
  color:rgba(255,255,255,.82);
}
.banner-pills{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:32px;
}
.banner-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:999px;
  background:rgba(255,255,255,.09);
  border:1px solid rgba(255,255,255,.14);
  font-size:.85rem;
  color:rgba(255,255,255,.86);
}
.banner-pill strong{
  color:#fff;
  font-weight:700;
}
.brand-overview{
  background:var(--surface);
  border-bottom:1px solid var(--line);
}
.overview-grid{
  display:grid;
  grid-template-columns:1fr 1.05fr;
  gap:64px;
  align-items:center;
}
.overview-media{
  position:relative;
  border-radius:18px;
  background:var(--surface);
  padding:10px;
  box-shadow:var(--shadow-lg);
}
.overview-media::before{
  content:"";
  position:absolute;
  left:-16px;
  top:34px;
  width:100%;
  height:100%;
  border:1px solid rgba(22,138,84,.35);
  border-radius:18px;
  z-index:0;
  pointer-events:none;
}
.overview-media img{
  border-radius:12px;
  width:100%;
  height:auto;
  object-fit:cover;
  position:relative;
  z-index:1;
}
.media-caption{
  position:absolute;
  z-index:2;
  left:-10px;
  bottom:22px;
  background:var(--deep);
  color:#fff;
  padding:10px 18px;
  border-radius:8px;
  font-size:.85rem;
  box-shadow:0 8px 20px rgba(0,0,0,.18);
}
.overview-body .lead{
  font-size:1.12rem;
  color:var(--title);
  font-weight:600;
  line-height:1.8;
}
.check-list{
  margin-top:28px;
  display:grid;
  gap:12px;
}
.check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  color:var(--text);
  padding:14px 16px;
  background:var(--bg);
  border-radius:10px;
  line-height:1.7;
}
.check-list li::before{
  content:"✓";
  flex:0 0 20px;
  height:20px;
  border-radius:50%;
  background:var(--brand);
  color:#fff;
  font-size:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-top:3px;
}
.channel-index{
  background:var(--bg);
}
.channel-index-grid{
  display:grid;
  grid-template-columns:1.06fr .94fr;
  gap:72px;
  align-items:start;
}
.group-block + .group-block{
  margin-top:30px;
}
.group-block{
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  padding:24px 26px;
  box-shadow:var(--shadow);
  transition:var(--transition);
}
.group-block:hover{
  box-shadow:var(--shadow-lg);
}
.group-block .group-label{
  font-size:.82rem;
  font-weight:800;
  letter-spacing:.08em;
  color:var(--brand);
  margin-bottom:12px;
  display:flex;
  align-items:center;
  gap:8px;
}
.group-block .group-label::after{
  content:"";
  flex:0 0 22px;
  height:1px;
  background:var(--line);
}
.group-block ul{
  display:grid;
  gap:8px;
}
.group-block li{
  position:relative;
  padding-left:22px;
  color:var(--text);
  font-size:.97rem;
  line-height:1.75;
}
.group-block li::before{
  content:"";
  position:absolute;
  left:2px;
  top:11px;
  width:8px;
  height:8px;
  border-radius:2px;
  background:var(--brand);
  opacity:.7;
}
.quick-panel{
  background:var(--deep);
  border-radius:18px;
  padding:32px;
  color:#fff;
  position:sticky;
  top:100px;
  box-shadow:0 20px 40px rgba(18,33,26,.18);
  overflow:hidden;
}
.quick-panel::after{
  content:"";
  position:absolute;
  right:-36px;
  bottom:-36px;
  width:160px;
  height:160px;
  border-radius:50%;
  background:rgba(255,255,255,.04);
}
.quick-panel h3{
  font-size:1.5rem;
  color:#fff;
  margin-bottom:6px;
}
.quick-panel > p{
  color:rgba(255,255,255,.64);
  margin-bottom:24px;
  font-size:.94rem;
}
.quick-list a{
  display:flex;
  align-items:center;
  gap:14px;
  padding:16px 4px;
  text-decoration:none;
  border-bottom:1px solid rgba(255,255,255,.1);
  transition:background .2s ease,padding .2s ease;
  border-radius:8px;
}
.quick-list a:last-child{
  border-bottom:0;
}
.quick-list a:hover{
  background:rgba(255,255,255,.06);
  padding-left:12px;
}
.quick-list .quick-icon{
  flex:0 0 40px;
  height:40px;
  border-radius:10px;
  background:rgba(143,224,176,.12);
  border:1px solid rgba(143,224,176,.28);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--bright);
  font-size:1.15rem;
  font-weight:800;
}
.quick-list .quick-text{
  flex:1;
}
.quick-list .quick-text strong{
  display:block;
  color:#fff;
  font-size:.98rem;
}
.quick-list .quick-text span{
  display:block;
  font-size:.83rem;
  color:rgba(255,255,255,.56);
  line-height:1.5;
}
.quick-arrow{
  color:rgba(255,255,255,.4);
  font-size:1.1rem;
  transition:transform .2s ease,color .2s ease;
}
.quick-list a:hover .quick-arrow{
  transform:translateX(4px);
  color:var(--bright);
}
.info-band{
  background:var(--deep);
  color:#fff;
  padding:70px 0;
  position:relative;
  overflow:hidden;
}
.info-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:22px 22px;
}
.info-band .container{
  position:relative;
  z-index:2;
}
.info-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:48px;
}
.info-item{
  border-left:1px solid rgba(255,255,255,.14);
  padding-left:28px;
}
.info-item .info-icon{
  width:42px;
  height:42px;
  border-radius:8px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.1rem;
  color:var(--bright);
  margin-bottom:16px;
}
.info-item:nth-child(2) .info-icon{
  color:var(--accent);
}
.info-item h3{
  color:#fff;
  font-size:1.2rem;
  margin-bottom:8px;
}
.info-item p{
  color:rgba(255,255,255,.65);
  font-size:.96rem;
  line-height:1.8;
}
.faq-section{
  background:var(--surface);
}
.faq-list{
  max-width:840px;
  margin:0 auto;
}
.faq-item{
  border-bottom:1px solid var(--line);
}
.faq-item:first-child{
  border-top:1px solid var(--line);
}
.faq-toggle{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  width:100%;
  background:transparent;
  border:0;
  text-align:left;
  padding:22px 4px;
  cursor:pointer;
  min-height:44px;
}
.faq-toggle .faq-q{
  display:flex;
  align-items:flex-start;
  gap:14px;
  font-size:1.05rem;
  font-weight:700;
  color:var(--title);
  line-height:1.5;
}
.faq-toggle .faq-q::before{
  content:"?";
  flex:0 0 24px;
  height:24px;
  border-radius:50%;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:.8rem;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-top:3px;
}
.faq-arrow{
  flex:0 0 18px;
  color:var(--muted);
  transition:transform .25s ease,color .25s ease;
}
.faq-item[data-open="true"] .faq-arrow{
  transform:rotate(135deg);
  color:var(--brand);
}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .25s ease;
}
.faq-answer-inner{
  padding:0 4px 24px 38px;
  color:var(--muted);
  font-size:.98rem;
  line-height:1.9;
}
.faq-answer-inner a{
  color:var(--brand);
  text-decoration:none;
}
.next-section{
  padding:80px 0;
}
.next-card{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  padding:52px 56px;
  background:linear-gradient(120deg,#168A54,#0E6B41);
  border-radius:20px;
  color:#fff;
  box-shadow:0 18px 40px rgba(16,101,65,.18);
  position:relative;
  overflow:hidden;
}
.next-card::after{
  content:"";
  position:absolute;
  right:-40px;
  bottom:-90px;
  width:280px;
  height:280px;
  border-radius:50%;
  background:rgba(255,255,255,.08);
}
.next-card h2{
  color:#fff;
  font-size:clamp(1.7rem,3vw,2.4rem);
  letter-spacing:-.02em;
  margin-bottom:8px;
}
.next-card p{
  color:rgba(255,255,255,.8);
  font-size:1rem;
}
.site-footer{
  background:var(--deep);
  padding:66px 0 0;
  color:rgba(255,255,255,.68);
}
.footer-main{
  display:grid;
  grid-template-columns:1.4fr .9fr 1fr;
  gap:60px;
}
.footer-brand .brand-name{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:1.4rem;
  font-weight:800;
  letter-spacing:.01em;
  margin-bottom:18px;
}
.brand-dot{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--accent);
}
.footer-about{
  font-size:.95rem;
  line-height:1.85;
  color:rgba(255,255,255,.55);
  max-width:340px;
}
.footer-title{
  font-size:.86rem;
  font-weight:700;
  letter-spacing:.1em;
  color:rgba(255,255,255,.9);
  margin-bottom:20px;
  text-transform:uppercase;
}
.footer-links a{
  display:block;
  color:rgba(255,255,255,.58);
  text-decoration:none;
  padding:6px 0;
  font-size:.95rem;
  transition:color .2s ease,padding-left .2s ease;
}
.footer-links a:hover{
  color:#fff;
  padding-left:6px;
}
.footer-bottom{
  margin-top:58px;
  border-top:1px solid var(--light-line);
  padding:20px 0;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px 24px;
  font-size:.82rem;
  color:rgba(255,255,255,.45);
}
@media(max-width:1199px){
  .overview-grid{
    gap:44px;
  }
  .channel-index-grid{
    gap:48px;
  }
}
@media(max-width:991px){
  .section{
    padding:80px 0;
  }
  .main-nav{
    position:fixed;
    top:0;
    right:0;
    width:280px;
    height:100dvh;
    background:var(--deep);
    flex-direction:column;
    justify-content:flex-start;
    align-items:stretch;
    padding:96px 22px 32px;
    transform:translateX(100%);
    opacity:0;
    visibility:hidden;
    transition:transform .3s ease,opacity .3s ease,visibility .3s ease;
    box-shadow:-18px 0 40px rgba(0,0,0,.2);
    margin:0;
  }
  body.nav-open .main-nav{
    transform:translateX(0);
    opacity:1;
    visibility:visible;
  }
  .nav-link{
    padding:13px 16px;
  }
  .nav-toggle{
    display:flex;
  }
  .nav-overlay{
    display:block;
  }
  .header-actions .btn{
    display:none;
  }
  .overview-grid{
    grid-template-columns:1fr;
    gap:52px;
  }
  .overview-media{
    max-width:620px;
  }
  .channel-index-grid{
    grid-template-columns:1fr;
  }
  .quick-panel{
    position:static;
  }
  .info-grid{
    gap:32px;
  }
  .next-card{
    padding:40px 30px;
    flex-direction:column;
    align-items:flex-start;
    gap:24px;
  }
  .footer-main{
    grid-template-columns:1fr 1fr;
    gap:40px;
  }
}
@media(max-width:767px){
  .container{
    width:min(100% - 32px,1200px);
  }
  .section{
    padding:64px 0;
  }
  .page-banner{
    padding:154px 0 56px;
  }
  .page-title{
    letter-spacing:-.02em;
  }
  .banner-summary{
    font-size:.98rem;
  }
  .banner-pills{
    gap:8px;
  }
  .overview-grid{
    gap:40px;
  }
  .media-caption{
    left:6px;
    bottom:18px;
    font-size:.78rem;
    padding:8px 14px;
  }
  .info-grid{
    grid-template-columns:1fr;
    gap:28px;
  }
  .info-item{
    border-left:0;
    border-top:1px solid rgba(255,255,255,.14);
    padding:24px 0 0;
  }
  .next-card{
    padding:34px 24px;
  }
  .footer-main{
    grid-template-columns:1fr;
    gap:36px;
  }
  .footer-bottom{
    flex-direction:column;
  }
}
@media(max-width:520px){
  .header-actions{
    gap:6px;
  }
  .page-banner{
    background-position:60% 30%;
  }
  .brand{
    font-size:1.05rem;
  }
  .brand-mark{
    width:32px;
    height:32px;
    font-size:.85rem;
  }
  .group-block{
    padding:22px 18px;
  }
  .quick-panel{
    padding:26px 20px;
  }
}

/* roulang page: category2 */
:root{
  --bg:#F6F7F3;
  --card:#FFFFFF;
  --dark:#12211A;
  --dark2:#15231C;
  --green:#168A54;
  --green-bright:#10A566;
  --green-dark:#0A6B40;
  --green-light:#8FE0B0;
  --green-soft:#E4F2EA;
  --accent:#FF7A26;
  --text-title:#17211B;
  --text-body:#2B3631;
  --text-weak:#5E6C64;
  --text-soft:#949E96;
  --border:rgba(23,33,27,0.10);
  --border-dark:rgba(255,255,255,0.14);
  --radius-sm:8px;
  --radius-md:12px;
  --radius-lg:16px;
  --shadow-sm:0 6px 18px rgba(19,35,27,.06);
  --shadow-lg:0 14px 30px rgba(19,35,27,.12);
  --maxw:1200px;
  --nav-h:64px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text-body);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
body.menu-open{overflow:hidden}
img,a,button,input{display:inline-block}
img{max-width:100%;border:0}
a{color:var(--green);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--green-dark)}
button{font-family:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1em}
.container{max-width:var(--maxw);margin:0 auto;padding-left:24px;padding-right:24px}
.container-narrow{max-width:1000px;margin:0 auto;padding-left:24px;padding-right:24px}

.section-heading-v3{display:flex;align-items:baseline;gap:20px;margin-bottom:32px}
.section-index{font-weight:300;font-size:44px;letter-spacing:-0.05em;color:transparent;-webkit-text-stroke:1px rgba(22,138,84,.55);line-height:1;white-space:nowrap}
.heading-rule{flex:1;height:1px;background:linear-gradient(90deg,var(--border),rgba(22,138,84,.14));border:0}
.h2{font-size:32px;line-height:1.4;color:var(--text-title);font-weight:700;margin:0 0 14px}
.lead{font-size:16px;color:var(--text-weak);max-width:760px;line-height:1.9}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 28px;border-radius:999px;font-size:15px;font-weight:600;border:1px solid transparent;color:#fff;background:var(--green);transition:all .15s ease;outline:none;line-height:1}
.btn:hover{background:var(--green-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 18px rgba(22,138,84,.18)}
.btn:active{transform:translateY(1px);box-shadow:none}
.btn:focus-visible{outline:3px solid rgba(22,138,84,.35);outline-offset:2px}
.btn-light{background:#fff;color:var(--text-title);border-color:#d7dfd8}
.btn-light:hover{background:#f2f7f2;color:var(--green);border-color:var(--green)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.35)}
.btn-ghost:hover{background:rgba(255,255,255,.2);color:#fff}

/* Header Nav */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;height:var(--nav-h);
  background:rgba(18,33,26,0);transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(18,33,26,.95);
  border-bottom-color:rgba(255,255,255,.08);
  backdrop-filter:blur(8px);
}
.nav-inner{
  max-width:var(--maxw);height:var(--nav-h);margin:0 auto;padding:0 24px;
  display:flex;align-items:center;gap:24px;
}
.nav-brand{
  display:inline-flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:#fff;letter-spacing:-0.01em;
}
.nav-brand .brand-pin{
  width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
  border:2px solid rgba(255,255,255,.9);border-radius:5px;background:rgba(255,255,255,.08);position:relative;
}
.nav-brand .brand-pin::after{
  content:"";width:7px;height:7px;background:var(--green-light);border-radius:1px;
  box-shadow:-8px 6px 0 -2px var(--accent);
}
.nav-brand:hover{color:#fff}
.main-nav{display:flex;align-items:center;gap:8px;margin-right:auto}
.nav-link{
  display:inline-flex;align-items:center;height:40px;padding:0 16px;border-radius:999px;
  color:rgba(255,255,255,.85);font-size:15px;font-weight:500;transition:all .18s ease;
  position:relative;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.1)}
.nav-link.active{color:#fff;font-weight:600;background:rgba(143,224,176,.18)}
.nav-link.active::after{content:"";position:absolute;left:20px;right:20px;bottom:2px;height:2px;border-radius:2px;background:var(--green-light)}
.nav-action{display:flex;align-items:center;gap:10px}
.nav-cta{height:38px;padding:0 20px;border-radius:999px;border:0;background:var(--green);color:#fff;font-weight:600;font-size:14px;transition:background .2s ease,transform .15s ease}
.nav-cta:hover{background:var(--green-bright);color:#fff}
.nav-trigger{display:none;width:42px;height:42px;border-radius:8px;border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.06);flex-direction:column;align-items:center;justify-content:center;gap:5px}
.nav-trigger span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.menu-open .nav-trigger span:nth-child(1){transform:translateY(3.5px) rotate(45deg)}
.menu-open .nav-trigger span:nth-child(2){transform:translateY(-3.5px) rotate(-45deg)}

/* Category banner */
.cat-banner{
  position:relative;min-height:380px;padding:130px 0 70px;display:flex;align-items:center;overflow:hidden;
  background:var(--dark);
}
.cat-banner::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(90deg,rgba(18,33,26,.96) 25%,rgba(18,33,26,.74) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.cat-banner::after{
  content:"";position:absolute;right:-12%;top:-20px;width:520px;height:520px;border:2px solid rgba(143,224,176,.2);border-radius:50%;box-shadow:0 0 120px rgba(22,138,84,.15)
}
.cat-banner .container{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;gap:6px;align-items:center;font-size:14px;color:rgba(255,255,255,.70);margin-bottom:24px}
.crumb a{color:rgba(255,255,255,.75)}
.crumb a:hover{color:#fff}
.crumb svg{width:14px;height:14px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;background:rgba(143,224,176,.14);color:var(--green-light);
  padding:7px 14px;border-radius:999px;font-size:14px;margin-bottom:20px;border:1px solid rgba(143,224,176,.25)
}
.eyebrow::before{content:"";width:6px;height:6px;background:var(--accent);border-radius:50%}
.cat-banner h1{
  margin:0 0 18px;font-size:44px;line-height:1.3;color:#fff;letter-spacing:-0.02em;font-weight:700;
}
.cat-banner .lead-sub{
  font-size:17px;line-height:1.9;color:rgba(255,255,255,.8);max-width:760px;margin:0;
}
.quick-meta{
  margin-top:32px;display:flex;flex-wrap:wrap;gap:12px
}
.quick-meta .meta-pill{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);backdrop-filter:blur(2px);
  padding:8px 16px;border-radius:999px;font-size:14px;color:#eef4ef;
}
.quick-meta strong{color:var(--green-light);font-weight:700}

/* guide pre intro */
.guide-preview{padding:84px 0 24px}
.preview-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:32px;align-items:center;background:#fff;border:1px solid var(--border);border-radius:20px;padding:44px;box-shadow:var(--shadow-sm)}
.preview-text h2{margin:0 0 16px;color:var(--text-title);font-weight:700;font-size:30px;line-height:1.4}
.preview-text p{line-height:1.9;color:var(--text-body);margin-bottom:14px}
.preview-points{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:18px}
.ppoint{background:var(--green-soft);color:var(--green-dark);border-radius:10px;padding:12px 16px;font-size:14px;font-weight:600;display:flex;align-items:center;gap:8px}
.ppoint::before{content:"✓";color:var(--green);font-weight:800}
.preview-media{border-radius:16px;overflow:hidden;background:#e9efe8;position:relative}
.preview-media img{width:100%;height:300px;object-fit:cover;display:block}
.preview-tagblock{position:absolute;left:18px;bottom:18px;background:rgba(18,33,26,.86);color:#fff;font-size:13px;padding:10px 14px;border-radius:10px;display:flex;gap:6px}
.preview-tagblock span{color:var(--green-light);font-weight:700}

/* Timeline */
.timeline-section{padding:64px 0 92px}
.timeline-wrap{
  position:relative;padding:10px 0;
}
.timeline-wrap::before{
  content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;
  background-image:linear-gradient(to bottom,rgba(143,224,176,.22) 40%,rgba(22,138,84,.2) 20%);background-size:100% 14px;border:none;
  transform:translateX(-50%);
}
.tl-item{
  position:relative;display:grid;grid-template-columns:1fr 90px 1fr;gap:0;align-items:center;margin-bottom:44px;
}
.tl-item:last-child{margin-bottom:0}
.tl-body{background:#fff;border:1px solid var(--border);border-radius:18px;padding:28px 30px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease}
.tl-body:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.tl-body.left{text-align:right}
.tl-marker{
  display:flex;align-items:center;justify-content:center;position:relative;z-index:2;
}
.num-badge{
  width:58px;height:58px;margin:0 auto;border-radius:50%;background:#fff;border:2px solid rgba(22,138,84,.45);
  display:flex;align-items:center;justify-content:center;color:var(--green);font-weight:800;font-size:17px;box-shadow:0 0 0 7px #F6F7F3;
}
.num-badge small{font-size:10px;font-weight:500;margin-top:5px}
.tl-marker::before{
  content:"";position:absolute;width:18px;height:18px;background:#fff;border:3px solid var(--accent);border-radius:50%;z-index:-1;opacity:.28
}
.tl-body h3{margin:0 0 8px;color:var(--text-title);font-size:21px;line-height:1.4}
.tl-tag{font-size:13px;display:inline-block;background:var(--green-soft);color:var(--green-dark);border-radius:999px;padding:2px 12px;margin-bottom:14px}
.tl-body p{font-size:15px;line-height:1.85;color:var(--text-body);margin-bottom:16px}
.tip-list li{display:flex;gap:8px;align-items:flex-start;font-size:14px;color:var(--text-body);margin-bottom:8px}
.tip-list li::before{content:"→";color:var(--green);font-weight:600;flex:0 0 auto}
.tl-body.left .tip-list li{flex-direction:row-reverse}
.tl-body.left .tip-list li::before{content:"←"}

/* Rule note section */
.rule-notes{background:var(--dark);padding:88px 0;position:relative;overflow:hidden}
.rule-notes::before{
  content:"";position:absolute;right:6%;top:12%;width:300px;height:300px;border:1px solid rgba(255,255,255,.12);border-radius:50%;
  box-shadow:0 0 0 32px rgba(255,255,255,.02),0 0 0 72px rgba(255,255,255,.02)
}
.rule-notes .container{position:relative;z-index:2}
.rule-notes .h2{color:#fff}
.rule-notes .lead{color:rgba(255,255,255,.7)}
.rule-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:40px}
.rule-card{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.12);border-radius:18px;padding:30px 26px;min-height:205px;transition:transform .2s ease,background .25s ease}
.rule-card:hover{transform:translateY(-4px);background:rgba(255,255,255,.07)}
.rule-icon{
  display:flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:12px;background:rgba(22,138,84,.28);
  color:var(--green-light);font-size:22px;margin-bottom:18px;border:1px solid rgba(255,255,255,.1);
}
.rule-card h3{color:#fff;font-size:18px;margin:0 0 12px;font-weight:600}
.rule-card p{color:rgba(255,255,255,.72);font-size:14.5px;line-height:1.82;margin:0}

/* Info cards section */
.helper-section{
  padding:96px 0;background:#fff;
}
.helper-flex{display:grid;grid-template-columns:1fr 1.05fr;gap:36px;align-items:center;border:1px solid var(--border);border-radius:20px;background:var(--bg);overflow:hidden;box-shadow:var(--shadow-sm)}
.helper-visual{background:#dfe8e0;position:relative;min-height:400px;border-radius:0 0 60% 0;overflow:hidden}
.helper-visual img{width:100%;height:400px;object-fit:cover}
.helper-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(18,33,26,0) 40%,rgba(246,247,243,.65) 100%)}
.helper-content{padding:52px;position:relative;z-index:2}
.helper-content h2{color:var(--text-title);font-size:29px;margin:0 0 22px;}
.helper-list{display:grid;gap:14px}
.helper-item{
  background:#fff;border:1px solid var(--border);border-radius:14px;padding:16px 20px;
  display:grid;grid-template-columns:30px 1fr 14px;align-items:flex-start;gap:14px;
}
.helper-step{color:var(--green);font-weight:800;font-size:19px;text-align:center;line-height:1.2;border-right:1px solid var(--border);}
.helper-txt strong{color:var(--text-title);font-weight:600;display:block;margin-bottom:4px;font-size:16px}
.helper-txt p{margin:0;font-size:14px;color:var(--text-weak);line-height:1.7}
.helper-icon{color:var(--border);font-size:18px}
@media (min-width:768px){
  .helper-grid-card{grid-template-columns:1fr 1fr}
}

/* FAQ */
.faq-section{
  padding:90px 0 30px;
}
.faq-panel{max-width:900px;margin:36px auto 0}
.faq-item{border-bottom:1px solid var(--border);padding:6px 0}
.faq-head{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 4px;border:none;background:transparent;
  text-align:left;color:var(--text-title);font-size:16.5px;font-weight:600;transition:color .15s ease;min-height:58px;
}
.faq-head:hover{color:var(--green)}
.faq-head:focus-visible{outline:3px solid rgba(22,138,84,.3);outline-offset:2px;border-radius:8px}
.faq-icon{
  width:27px;height:27px;border-radius:50%;background:var(--green-soft);color:var(--green);
  font-size:16px;font-weight:600;flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;transition:transform .2s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--green);color:#fff}
.faq-body{
  display:grid;grid-template-rows:0fr;transition:grid-template-rows .22s ease;
}
.faq-body-inner{overflow:hidden}
.faq-answer{padding:0 32px 20px 4px;color:var(--text-body);font-size:15px;line-height:1.85}
.faq-answer strong{color:var(--green-dark);font-weight:600}
.faq-item.open .faq-body{grid-template-rows:1fr}

/* CTA */
.cta-sec{padding:70px 0 120px}
.cta-box{
  background:linear-gradient(110deg,#15261d,#12211a 55%);border-radius:26px;padding:70px 56px;position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:30px;
}
.cta-box::before{content:"";position:absolute;right:-70px;top:-70px;width:260px;height:260px;border-radius:50%;background:rgba(143,224,176,.06)}
.cta-box::after{content:"GUIDE";position:absolute;right:20px;bottom:-10px;font-size:120px;letter-spacing:-0.08em;color:rgba(255,255,255,.04);line-height:1;font-weight:800}
.cta-text h2{margin:0 0 10px;color:#fff;font-size:28px;letter-spacing:-0.01em}
.cta-text p{margin:0;color:rgba(255,255,255,.75);font-size:15px}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap}

/* Footer */
.site-footer{
  background:#101D17;
  padding:72px 0 0;
}
.footer-main{
  display:grid;grid-template-columns:1.7fr 1.1fr 1.1fr;gap:48px;padding-bottom:46px;border-bottom:1px solid rgba(255,255,255,.09)
}
.footer-brand .brand-name{
  color:#fff;font-weight:700;font-size:21px;display:flex;align-items:center;gap:6px;margin-bottom:14px;line-height:1.4;
}
.brand-dot{display:inline-block;width:7px;height:7px;background:var(--green-light);border-radius:1px;box-shadow:-8px 6px 0 -2px var(--accent);margin-left:5px}
.footer-about{color:rgba(255,255,255,.66);font-size:15px;line-height:1.85;max-width:400px;margin-bottom:16px}
.footer-cert{display:inline-block;border:1px solid rgba(255,255,255,.18);border-radius:8px;padding:4px 14px;color:var(--green-light);font-size:13px}
.footer-title{color:#fff;font-size:15px;font-weight:600;margin:0 0 18px;}
.footer-links{display:grid;gap:10px}
.footer-links a{color:rgba(255,255,255,.6);font-size:14px;transition:color .2s ease,padding-left .2s ease}
.footer-links a:hover{color:#fff;padding-left:5px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;
  padding:22px 0;color:rgba(255,255,255,.46);font-size:13.5px
}

@media (max-width:1199px){
  .container,.nav-inner{padding-left:20px;padding-right:20px}
}
@media (max-width:991px){
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;width:340px;max-width:90vw;background:#12211A;border-left:1px solid rgba(255,255,255,.12);
    flex-direction:column;align-items:flex-start;gap:6px;padding:100px 26px 40px;margin:0;
    transform:translateX(102%);transition:transform .3s ease;box-shadow:0 30px 50px rgba(0,0,0,.22);
    display:flex;
  }
  .menu-open .main-nav{transform:translateX(0)}
  .main-nav .nav-link{width:100%;height:52px;border-radius:10px;font-size:16px}
  .nav-trigger{display:inline-flex}
}
@media (min-width:992px){
  .main-nav{display:flex!important}
}
@media (max-width:767px){
  .site-header{height:56px}
  .nav-inner{height:56px;gap:10px;padding-left:14px;padding-right:14px}
  body{padding-top:56px}
  .nav-brand{font-size:17px}
  .nav-brand .brand-pin{width:24px;height:24px}
  .nav-cta{display:none}
  .cat-banner{min-height:300px;padding:90px 0 50px}
  .cat-banner h1{font-size:32px}
  .cat-banner .lead-sub{font-size:15.5px}
  .crumb{margin-bottom:16px}
  .eyebrow{margin-bottom:15px;font-size:12px}
  .quick-meta .meta-pill{font-size:13px;padding:6px 12px}
  .guide-preview{padding-top:54px}
  .preview-grid{grid-template-columns:1fr;padding:26px 22px;gap:26px}
  .preview-points{grid-template-columns:1fr}
  .preview-media img{height:220px}
  .timeline-section{padding-bottom:56px}
  .timeline-wrap::before{left:24px;transform:none}
  .tl-item{grid-template-columns:1fr;padding-left:38px;gap:14px;margin-bottom:36px}
  .tl-marker{justify-content:flex-start;position:absolute;left:0;width:40px;top:14px}
  .num-badge{width:44px;height:44px;font-size:15px;box-shadow:0 0 0 6px #F6F7F3;margin:0}
  .tl-body.left{text-align:left}
  .tl-body.left .tip-list li{flex-direction:row}
  .tl-body.left .tip-list li::before{content:"→"}
  .rule-grid{grid-template-columns:1fr}
  .helper-flex{grid-template-columns:1fr}
  .helper-visual{min-height:240px}
  .helper-visual img{height:240px}
  .helper-content{padding:38px 26px}
  .cta-box{flex-direction:column;padding:44px 26px;text-align:left}
  .footer-main{grid-template-columns:1fr;gap:32;padding-bottom:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .section-heading-v3{gap:10px}
  .h2{font-size:24px}
  .rule-notes{padding:62px 0}
  .cta-sec{padding-bottom:70px}
}
body{padding-top:56px}
.site-header.scrolled{background:rgba(18,33,26,.97)}
.site-header:not(.scrolled){background:rgba(18,33,26,0)}
.cat-banner{margin-top:0}

/* roulang page: category3 */
:root {
  --color-page: #F6F7F3;
  --color-card: #FFFFFF;
  --color-dark: #12211A;
  --color-dark2: #15231C;
  --color-primary: #168A54;
  --color-primary-hover: #0A6B40;
  --color-green-light: #8FE0B0;
  --color-orange: #FF7A26;
  --color-title: #17211B;
  --color-text: #2B3631;
  --color-sub: #5E6C64;
  --color-muted: #7C877F;
  --color-line: rgba(23, 33, 27, .10);
  --color-line-dark: rgba(255,255,255,.14);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-pill: 999px;
  --shadow-card: 0 6px 18px rgba(19, 35, 27, .06);
  --shadow-hover: 0 14px 30px rgba(19, 35, 27, .12);
  --container: 1200px;
  --header-h: 64px;
  --font-main: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.8;
  background: var(--color-page);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
ul, ol { margin: 0; padding: 0; }
h1, h2, h3, h4, p { margin: 0; }

.container {
  width: min(var(--container), 100% - 48px);
  margin: 0 auto;
}

.page-inner-narrow {
  max-width: 1040px;
  margin-left: auto;
  margin-right: auto;
}

:where(section) {
  scroll-margin-top: 82px;
}

/* 通用按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 24px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  border: 1px solid transparent;
  transition: background .18s ease, border-color .18s ease, color .18s ease, transform .15s ease, box-shadow .18s ease;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 8px 20px rgba(22, 138, 84, .18);
}
.btn-primary:hover { background: var(--color-primary-hover); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(1px); }
.btn-primary:focus-visible { outline: 3px solid rgba(22,138,84,.35); outline-offset: 2px; }

.btn-outline {
  background: transparent;
  color: var(--color-title);
  border-color: #C4D0C9;
}
.btn-outline:hover { border-color: var(--color-primary); color: var(--color-primary); background: #EAF5EE; }
.btn-outline:focus-visible { outline: 3px solid rgba(22,138,84,.28); outline-offset: 2px; }
.btn-light {
  background: #FFFFFF;
  color: var(--color-dark);
  border-color: #FFFFFF;
  box-shadow: 0 8px 22px rgba(0,0,0,.12);
}
.btn-light:hover { background: #F0F6F1; transform: translateY(-1px); }

.btn-lg { min-height: 50px; padding: 0 32px; font-size: 17px; }

/* 导航 */
.site-header {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  z-index: 100;
  height: var(--header-h);
  background: transparent;
  transition: background .3s ease, box-shadow .3s ease;
}
.site-header.scrolled {
  background: rgba(18, 33, 26, .96);
  box-shadow: 0 8px 24px rgba(10, 22, 16, .18);
}
.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(var(--container), 100% - 48px);
  margin: 0 auto;
  gap: 24px;
}
.logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}
.logo-mark {
  width: 34px; height: 34px;
  border-radius: 6px;
  background: rgba(255,255,255,.12);
  border: 1.5px solid rgba(255,255,255,.56);
  position: relative;
  flex: 0 0 auto;
  display: block;
}
.logo-mark::before {
  content: "";
  position: absolute;
  left: 7px; top: 7px;
  width: 18px; height: 11px;
  border-left: 3px solid var(--color-green-light);
  border-bottom: 3px solid var(--color-green-light);
  border-radius: 2px;
  transform: skewY(-12deg);
}
.logo-mark::after {
  content: "";
  position: absolute;
  right: 4px; top: 16px;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--color-orange);
}
.logo-text {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -.2px;
  color: #FFFFFF;
  white-space: nowrap;
}
.site-header.scrolled .logo-text { color: #F6FFF8; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: 12px;
}
.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 18px;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255,255,255,.85);
  border-radius: var(--radius-pill);
  transition: background .2s ease, color .2s ease;
  white-space: nowrap;
}
.nav-link:hover { color: #FFFFFF; background: rgba(255,255,255,.08); }
.nav-link.active { color: #FFFFFF; font-weight: 700; }
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 18px; right: 18px; bottom: 2px;
  height: 2px;
  border-radius: 4px;
  background: var(--color-green-light);
}
.site-header.scrolled .nav-link { color: rgba(230, 245, 236, .82); }
.site-header.scrolled .nav-link:hover { color: #fff; background: rgba(255,255,255,.07); }
.site-header.scrolled .nav-link.active { color: #FFFFFF; }
.site-header.scrolled .nav-link.active::after { background: var(--color-green-light); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}
.header-search {
  width: 200px;
  height: 40px;
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.16);
  border: 1px solid rgba(255,255,255,.22);
  border-radius: var(--radius-pill);
  padding: 0 14px;
  transition: background .2s ease;
  color: rgba(255,255,255,.7);
}
.site-header.scrolled .header-search { background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.14); }
.header-search svg { width: 15px; height: 15px; flex: none; stroke: currentColor; fill: none; stroke-width: 1.8; }
.header-search input {
  border: 0;
  background: transparent;
  width: 100%;
  color: #fff;
  font-size: 14px;
  outline: none;
  font-family: inherit;
}
.header-search input::placeholder { color: rgba(255,255,255,.62); }
.header-search:focus-within { background: rgba(255,255,255,.22); border-color: rgba(255,255,255,.36);}

.header-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 22px;
  background: var(--color-primary);
  color: #fff;
  border: 0;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 600;
  transition: background .2s ease, transform .15s ease;
  white-space: nowrap;
}
.header-btn:hover { background: var(--color-primary-hover); }
.header-btn:active { transform: translateY(1px); }
.header-btn:focus-visible { outline: 3px solid rgba(22,138,84,.38); outline-offset: 2px; }
.site-header.scrolled .header-btn { background: var(--color-primary); }

.hamburger {
  display: none;
  width: 42px; height: 42px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  transition: background .2s ease;
}
.hamburger span {
  display: block;
  width: 22px; height: 2px;
  margin: 3px auto;
  background: currentColor;
  border-radius: 4px;
  transition: transform .25s ease, opacity .25s ease;
}
.hamburger:hover { background: rgba(255,255,255,.1); }

/* 分类页横幅 */
.category-hero {
  position: relative;
  margin: 0;
  padding: 148px 0 86px;
  background-image: linear-gradient(112deg, rgba(12,25,18,.88) 22%, rgba(22,54,37,.62) 74%), url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center 36%;
  color: #fff;
  overflow: hidden;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.category-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 80px;
  background: linear-gradient(to top, #F6F7F3, transparent);
  pointer-events: none;
}
.category-hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.35fr .75fr;
  gap: 60px;
  align-items: center;
  width: min(var(--container), 100% - 48px);
  margin: 0 auto;
}
.cat-breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: rgba(255,255,255,.64);
  margin-bottom: 18px;
}
.cat-breadcrumb a { color: rgba(255,255,255,.78); transition: color .2s ease; }
.cat-breadcrumb a:hover { color: #FFFFFF; text-decoration: underline; }
.cat-breadcrumb .current { color: rgba(255,255,255,.5); }
.category-hero h1 {
  font-size: 54px;
  line-height: 1.16;
  letter-spacing: -1.2px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 22px;
}
.category-hero .hero-desc {
  max-width: 620px;
  font-size: 17px;
  line-height: 1.85;
  color: rgba(255,255,255,.82);
  margin-bottom: 32px;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-note {
  display: flex;
  align-items: center;
  margin-top: 24px;
  font-size: 14px;
  color: rgba(255,255,255,.54);
}
.hero-note svg { width: 16px; height: 16px; margin-right: 7px; }

.hero-stat-panel {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.14);
  backdrop-filter: blur(8px);
  border-radius: 16px;
  padding: 26px 24px;
  display: grid;
  gap: 16px;
}
.hero-stat-item {
  display: grid;
  grid-template-columns: 30px 1fr auto;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid rgba(255,255,255,.1);
  padding-bottom: 14px;
}
.hero-stat-item:last-child { border-bottom: 0; padding-bottom: 0; }
.hero-stat-icon {
  width: 30px; height: 30px;
  border-radius: 8px;
  background: rgba(143,224,176,.14);
  border: 1px solid rgba(143,224,176,.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 700;
  color: var(--color-green-light);
}
.hero-stat-text strong { display: block; font-size: 15px; color:#fff; }
.hero-stat-text span { font-size: 13px; color: rgba(255,255,255,.52); }
.hero-stat-tag {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 99px;
  background: rgba(255,122,38,.18);
  border: 1px solid rgba(255,122,38,.36);
  color: #FFE4D0;
  white-space: nowrap;
}

/* 锚点吸顶 */
.filter-sticky {
  position: relative;
  z-index: 60;
  background: #F6F7F3;
  border-bottom: 1px solid var(--color-line);
}
.filter-bar {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
  width: min(var(--container), 100% - 48px);
  margin: 0 auto;
  min-height: 60px;
  position: sticky;
  top: var(--header-h);
}
.filter-bar a {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 20px;
  margin: 8px 4px 8px 0;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-sub);
  transition: color .2s ease, background .2s ease;
}
.filter-bar a:hover { color: var(--color-primary); background: rgba(22,138,84,.08); }
.filter-bar a.active { color: #fff; background: var(--color-primary); }

/* 内容区块通用 */
.block-pad { padding: 88px 0; }
.block-pad-sm { padding: 56px 0; }
.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 44px;
}
.section-title {
  font-size: 32px;
  line-height: 1.3;
  color: var(--color-title);
  font-weight: 800;
  letter-spacing: -.4px;
}
.section-sub {
  font-size: 16px;
  color: var(--color-sub);
  max-width: 560px;
  margin-top: 10px;
}
.section-more {
  flex: 0 0 auto;
  font-size: 14px;
  color: var(--color-primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: opacity .2s ease;
  white-space: nowrap;
}
.section-more:hover { opacity: .76; }
.section-more::after { content: "→"; font-size: 16px; line-height: 1; }

/* 公告信息列表 */
.info-index-section {
  background: #FFFFFF;
  border-bottom: 1px solid var(--color-line);
}
.info-index-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 50px;
}
.info-list-card { border: 1px solid var(--color-line); border-radius: 14px; overflow: hidden; background: #fff; box-shadow: var(--shadow-card); }
.info-list-item {
  display: grid;
  grid-template-columns: 48px 1fr auto;
  align-items: center;
  gap: 20px;
  padding: 22px 28px;
  border-top: 1px solid var(--color-line);
  transition: background .16s ease;
}
.info-list-item:first-child { border-top: 0; }
.info-list-item:hover { background: #E9F4EE; }
.info-num {
  font-size: 20px;
  font-weight: 800;
  color: #C7D9CD;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.info-main h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-title);
  margin-bottom: 4px;
  line-height: 1.4;
}
.info-main .info-desc {
  font-size: 14px;
  color: var(--color-sub);
  line-height: 1.7;
  max-width: 680px;
}
.info-meta {
  text-align: right;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  white-space: nowrap;
}
.info-date {
  font-size: 13px;
  color: var(--color-muted);
  font-variant-numeric: tabular-nums;
  letter-spacing: .2px;
}
.status-chip {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 10px;
  border-radius: 99px;
  font-size: 12px;
  font-weight: 600;
  background: #E4F2EA;
  color: var(--color-primary);
  border: 1px solid rgba(22,138,84,.12);
}
.status-chip.orange {
  background: #FFEDDF;
  color: #C9530E;
  border-color: rgba(255,122,38,.2);
}
.status-chip.gray {
  background: #F0F2EF;
  color: #5E6C64;
  border-color: rgba(23,33,27,.08);
}

.aside-boxes {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.aside-note {
  background: #F0F4F0;
  border: 1px solid rgba(143,224,176,.2);
  border-radius: 12px;
  padding: 24px 22px;
}
.aside-note h3 { font-size: 15px; color: var(--color-title); margin-bottom: 10px; display: inline-flex; align-items: center; gap: 8px; }
.aside-note h3::before { content: "◆"; color: var(--color-primary); font-size: 13px; }
.aside-note p { font-size: 14px; color: var(--color-sub); line-height: 1.8; }

/* 知识资料卡 */
.knowledge-section { background: var(--color-page); }
.knowledge-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.knowledge-card {
  background: #FFFFFF;
  border: 1px solid var(--color-line);
  border-radius: 14px;
  padding: 28px 26px 26px;
  box-shadow: var(--shadow-card);
  transition: transform .18s ease, box-shadow .18s ease;
  display: flex;
  flex-direction: column;
}
.knowledge-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.knowledge-icon {
  width: 42px; height: 42px;
  border-radius: 10px;
  background: #E4F2EA;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--color-primary);
}
.knowledge-icon svg { width: 22px; height: 22px; stroke-width: 1.7; }
.knowledge-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--color-title);
  margin-bottom: 12px;
  line-height: 1.4;
}
.knowledge-card p { font-size: 14px; line-height: 1.82; color: var(--color-sub); }
.knowledge-tags { margin-top: auto; padding-top: 16px; display: flex; flex-wrap: wrap; gap: 8px; }
.mini-tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 10px;
  border-radius: 99px;
  font-size: 12px;
  color: #4B5A50;
  background: #F1F5F1;
  border: 1px solid var(--color-line);
}

/* 图例深色带 */
.legend-band {
  background: var(--color-dark);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
  color: #fff;
}
.legend-band::before {
  content: "NOTES";
  position: absolute;
  right: 4%;
  top: 18px;
  font-size: 128px;
  font-weight: 900;
  line-height: 1;
  color: rgba(255,255,255,.035);
  letter-spacing: 8px;
  pointer-events: none;
}
.legend-band .container { position: relative; z-index: 1; }
.legend-header { margin-bottom: 38px; }
.legend-header h2 { font-size: 30px; color: #fff; letter-spacing: -.4px; }
.legend-header p { font-size: 15px; color: rgba(255,255,255,.56); margin-top: 10px; max-width: 640px; }
.legend-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.legend-item {
  background: rgba(255,255,255,.045);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 12px;
  padding: 22px 20px;
}
.legend-item .chip-demo { margin-bottom: 16px; }
.legend-item h3 { font-size: 15px; font-weight: 600; color: #F4FFF8; margin-bottom: 8px; }
.legend-item p { font-size: 13px; color: rgba(255,255,255,.46); line-height: 1.7; }
.legend-chips { display: flex; flex-wrap: wrap; gap: 10px; align-items: baseline; margin-top: 40px; }

.status-chip.light { background: rgba(143,224,176,.18); border-color: rgba(143,224,176,.32); color: var(--color-green-light); }
.status-chip.light-orange { background: rgba(255,122,38,.2); border-color: rgba(255,122,38,.34); color: #FFD1B2; }
.status-chip.light-gray { background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.14); color: rgba(250,255,252,.8); }
.status-chip.light-white { background: rgba(255,255,255,.16); border-color: rgba(255,255,255,.26); color: #fff; }

/* FAQ */
.faq-section { background: #FFFFFF; }
.faq-wrap { max-width: 880px; margin: 0 auto; }
.faq-title { text-align: center; font-size: 34px; color: var(--color-title); letter-spacing: -.4px; margin-bottom: 12px; }
.faq-sub { text-align: center; color: var(--color-sub); font-size: 16px; margin-bottom: 48px; }
.faq-item {
  border-bottom: 1px solid var(--color-line);
}
.faq-item:first-child { border-top: 1px solid var(--color-line); }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 30px;
  padding: 22px 4px;
  min-height: 60px;
  transition: padding-left .2s ease;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { padding-left: 8px; }
.faq-item summary h3 { font-size: 16px; font-weight: 600; color: var(--color-title); line-height: 1.5; }
.faq-question {
  display: flex;
  align-items: center;
  gap: 14px;
}
.faq-icon {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: #E4F2EA;
  color: var(--color-primary);
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
  transition: transform .25s ease, background .25s ease;
}
.faq-arrow {
  flex: 0 0 auto;
  width: 20px; height: 20px;
  color: var(--color-muted);
  transition: transform .25s ease;
}
.faq-arrow::before { content: "+"; font-size: 22px; line-height: 1; display: block; text-align: center; }
details[open] .faq-arrow::before { content: "−"; }
details[open] .faq-icon { transform: rotate(90deg); background: var(--color-primary); color: #fff; }
.faq-answer {
  padding: 0 4px 28px 54px;
  font-size: 15px;
  color: var(--color-sub);
  line-height: 1.85;
}
.faq-answer ul { padding-left: 22px; display: grid; gap: 6px; }
.faq-answer li::marker { color: var(--color-primary); }

/* CTA 区 */
.cta-banner {
  padding: 84px 0;
  background-image: linear-gradient(90deg, rgba(15,29,21,.9), rgba(20,46,31,.74)), url('/assets/images/backpic/back-3.webp');
  background-size: cover;
  background-position: center;
  color: #fff;
}
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}
.cta-text h2 { font-size: 32px; letter-spacing: -.4px; color: #fff; margin-bottom: 14px; line-height: 1.35; }
.cta-text p { max-width: 580px; color: rgba(255,255,255,.66); font-size: 16px; }
.cta-operations { display: flex; gap: 14px; flex-wrap: wrap; }
.cta-arrow-link { color: #Bff0D2; font-size: 14px; display: inline-flex; gap: 6px; align-items: center; }
.cta-arrow-link:hover { color: #fff; }

/* 页脚 */
.site-footer {
  background: var(--color-dark);
  color: rgba(220,230,222,.7);
  padding: 60px 0 0;
}
.footer-main {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 46px;
  padding-bottom: 44px;
}
.brand-name {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 18px;
}
.brand-dot { width: 8px; height: 8px; background: var(--color-orange); border-radius: 50%; display: inline-block; }
.footer-about { font-size: 14px; line-height: 1.9; color: rgba(220,230,222,.52); max-width: 360px; }
.footer-title { font-size: 15px; color: #FFFFFF; font-weight: 600; margin-bottom: 18px; letter-spacing: .2px; }
.footer-links { display: grid; gap: 12px; font-size: 14px; }
.footer-links a { color: rgba(220,230,222,.64); transition: color .2s ease; }
.footer-links a:hover { color: #8FE0B0; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.09);
  padding: 22px 0;
  display: flex;
  gap: 28px;
  justify-content: space-between;
  font-size: 13px;
  color: rgba(220,230,222,.38);
  flex-wrap: wrap;
}

/* 滚动条 */
::selection { background: rgba(22,138,84,.2); }

/* 响应式 */
@media (max-width:1199px) {
  .category-hero h1 { font-size: 46px; }
  .cat-breadcrumb { font-size: 13px; }
  .header-search { width: 150px; }
  .main-nav { gap: 0; }
  .nav-link { padding: 0 12px; }
}

@media (max-width:991px) {
  .header-search { display: none; }
  .main-nav { display: none; }
  .hamburger { display: flex; }
  .header-btn { display: inline-flex; }
  .header-inner { justify-content: flex-start; }
  .header-actions { margin-left: auto; }
  .main-nav.mobile-open {
    display: grid;
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    background: rgba(18,33,26,.97);
    border-bottom: 1px solid rgba(255,255,255,.08);
    padding: 14px 24px 22px;
    gap: 2px;
    z-index: 90;
    box-shadow: 0 24px 40px rgba(0,0,0,.3);
    margin: 0;
  }
  .main-nav.mobile-open .nav-link { color: rgba(255,255,255,.84); padding: 12px 14px; }
  .main-nav.mobile-open .nav-link.active { color: #8FE0B0; }
  .main-nav.mobile-open .nav-link.active::after { left:14px; right:auto; width:32px; bottom:6px; }
  .category-hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .category-hero { padding-top: 140px; }
  .hero-stat-panel { grid-template-columns: repeat(3,1fr); }
  .info-index-layout { grid-template-columns: 1fr; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 12px; }
  .knowledge-grid { grid-template-columns: repeat(2,1fr); }
  .legend-grid { grid-template-columns: repeat(2,1fr); }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 36px; }
}

@media (max-width:767px) {
  .container { width: min(100% - 36px, var(--container)); }
  .header-inner { width: min(100% - 24px, var(--container)); gap: 12px; }
  .logo-text { font-size: 18px; }
  .header-btn { display: none; }
  .category-hero { padding: 130px 0 60px; }
  .category-hero h1 { font-size: 38px; letter-spacing: -.6px; }
  .category-hero .hero-desc { font-size: 15px; }
  .hero-stat-panel { grid-template-columns: 1fr; }
  .filter-bar a { font-size: 13px; padding: 0 16px; }
  .block-pad { padding: 64px 0; }
  .section-title { font-size: 27px; }
  .info-list-item { grid-template-columns: 34px 1fr; gap: 12px; padding: 18px 18px; }
  .info-num { font-size: 15px; }
  .info-meta { flex-direction: row; justify-content: flex-start; grid-column: 1 / 3; padding-top: 4px; }
  .info-meta .status-chip { margin-left: 10px; }
  .knowledge-grid { grid-template-columns: 1fr; }
  .legend-grid { grid-template-columns: 1fr; }
  .faq-title { font-size: 28px; }
  .faq-item summary { gap: 16px; }
  .faq-answer ul { padding-left: 6px; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .footer-main { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 6px; }
}