/* roulang page: index */
:root {
  --bg: #F5F3EF;
  --surface: #FFFFFF;
  --dark: #0C2F26;
  --text: #1A241F;
  --text-sec: #5C6A62;
  --border: #E2E6E0;
  --brand: #0E6B4B;
  --brand-dark: #0A4F38;
  --accent: #C58C2D;
  --accent-dark: #9A6920;
  --mint: #E8F1EC;
  --radius: 8px;
  --shadow-sm: 0 1px 2px rgba(28, 40, 32, .04), 0 6px 18px rgba(28, 40, 32, .05);
  --shadow-hover: 0 2px 4px rgba(28, 40, 32, .05), 0 14px 30px rgba(28, 40, 32, .08);
}

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

@media (max-width: 640px) {
  .container {
    padding-left: 18px;
    padding-right: 18px;
  }
}

/* ========== 按钮体系 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 24px;
  border-radius: 6px;
  border: 1px solid transparent;
  background: transparent;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  transition: all .25s ease;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 3px solid rgba(197, 140, 45, .55);
  outline-offset: 2px;
}

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

.btn-primary:hover {
  background-color: var(--brand-dark);
  border-color: var(--brand-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(14, 107, 75, .22);
}

.btn-outline {
  background-color: transparent;
  color: var(--brand-dark);
  border-color: #b9c8be;
}

.btn-outline:hover {
  border-color: var(--brand);
  color: var(--brand);
  transform: translateY(-2px);
}

.btn-light {
  background-color: var(--bg);
  color: var(--dark);
  border-color: var(--bg);
}

.btn-light:hover {
  background-color: #e7dec9;
  border-color: #e7dec9;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, .2);
}

.btn-outline-light {
  background: rgba(255, 255, 255, .08);
  color: #f7f4ec;
  border-color: rgba(255, 255, 255, .55);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, .14);
  border-color: #fff;
  color: #fff;
  transform: translateY(-2px);
}

.btn-sm {
  min-height: 36px;
  padding: 6px 16px;
  font-size: 14px;
  border-radius: 6px;
}

.btn-arrow:hover i,
.btn-arrow:hover svg {
  transform: translateX(4px);
}

.btn i,
.btn svg {
  transition: transform .25s ease;
}

.link-underline {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--brand);
  font-weight: 600;
  font-size: 14px;
  position: relative;
  transition: color .2s ease;
}

.link-underline::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width .3s ease;
}

.link-underline:hover::after {
  width: 100%;
}

.link-underline:hover {
  color: var(--brand-dark);
}

/* ========== 顶部导航 ========== */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 60;
}

.header-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 76px;
  gap: 20px;
}

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

.nav-left {
  justify-self: start;
}

.nav-right {
  justify-self: end;
}

.site-nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  border-radius: 6px;
  transition: color .2s ease;
  white-space: nowrap;
}

.site-nav-link::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 2px;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .25s ease;
}

.site-nav-link:hover {
  color: var(--brand-dark);
}

.site-nav-link:hover::after,
.site-nav-link.active::after {
  transform: scaleX(1);
}

.site-nav-link.active {
  color: var(--brand-dark);
  font-weight: 600;
}

.brand-logo {
  display: inline-flex;
  align-items: baseline;
  gap: 0;
  font-size: 22px;
  font-weight: 900;
  letter-spacing: .5px;
  white-space: nowrap;
}

.brand-name {
  color: var(--dark);
}

.brand-tag {
  color: var(--brand);
  margin-left: 2px;
}

.brand-logo:hover {
  opacity: .88;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  transition: border-color .2s ease, background .2s ease;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform .2s ease, background .2s ease;
}

.nav-toggle:hover {
  border-color: var(--brand);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 12px 24px 24px;
  border-top: 1px solid var(--border);
  background: var(--surface);
}

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

.mobile-link {
  padding: 12px 8px;
  font-size: 16px;
  color: var(--text);
  border-radius: 6px;
  border-bottom: 1px solid #eef0ec;
  transition: background .2s ease, color .2s ease;
}

.mobile-link:last-of-type {
  border-bottom: none;
}

.mobile-link:hover,
.mobile-link.active {
  color: var(--brand-dark);
  background: var(--mint);
}

.mobile-cta {
  margin-top: 10px;
}

@media (max-width: 1080px) {
  .header-nav {
    display: none;
  }
  .header-grid {
    grid-template-columns: 1fr auto 1fr;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .nav-toggle {
    justify-self: end;
  }
}

/* ========== Hero ========== */
.hero {
  position: relative;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  overflow: hidden;
}

.hero:before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(12, 47, 38, .96) 0%, rgba(12, 47, 38, .88) 42%, rgba(14, 107, 75, .62) 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  min-height: 620px;
  padding-top: 72px;
  padding-bottom: 72px;
}

.hero-left {
  max-width: 640px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #f0d9a6;
  font-size: 13px;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.hero-eyebrow::before {
  content: "";
  width: 34px;
  height: 1px;
  background: var(--accent);
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  line-height: 1.05;
  font-weight: 900;
  color: #fbfaf6;
  margin: 0 0 22px;
}

.hero h1 .hero-highlight {
  color: #f3d99d;
}

.hero-desc {
  font-size: 18px;
  color: rgba(255, 255, 255, .82);
  line-height: 1.8;
  max-width: 520px;
  margin-bottom: 36px;
}

.hero-mini-list {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 28px;
  margin-bottom: 40px;
  font-size: 14px;
  color: rgba(255, 255, 255, .9);
}

.hero-mini-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.hero-mini-list li::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
}

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

@media (max-width: 768px) {
  .hero-content {
    min-height: 520px;
    padding-top: 48px;
    padding-bottom: 48px;
  }
  .hero-desc {
    font-size: 16px;
  }
  .hero-actions .btn {
    width: 100%;
  }
}

/* ========== 信任条 ========== */
.trust-bar {
  background: var(--dark);
  color: rgba(255, 255, 255, .88);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.trust-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 18px 10px;
  font-size: 13px;
  border-right: 1px solid rgba(255, 255, 255, .08);
}

.trust-item:last-child {
  border-right: none;
}

.trust-icon {
  width: 22px;
  height: 22px;
  color: #d9b970;
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .trust-item {
    border-bottom: 1px solid rgba(255, 255, 255, .06);
  }
}

@media (max-width: 520px) {
  .trust-item {
    font-size: 12px;
    padding: 14px 6px;
  }
}

/* ========== 通用区块 ========== */
.section {
  padding: 96px 0;
}

.section-sm {
  padding: 64px 0;
}

.section-bg {
  background-color: var(--bg);
}

.section-white {
  background-color: var(--surface);
}

.section-title-wrap {
  max-width: 760px;
  margin-bottom: 48px;
}

.section-eyebrow {
  display: inline-block;
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.6rem, 3.5vw, 2.6rem);
  font-weight: 800;
  line-height: 1.25;
  margin-top: 6px;
}

.section-sub {
  color: var(--text-sec);
  font-size: 17px;
  margin-top: 16px;
  line-height: 1.8;
}

.text-dark-title {
  color: #f7f5ef;
}

.text-dark-sub {
  color: rgba(255, 255, 255, .7);
}

/* ========== 痛点区 ========== */
.pain-list {
  border-top: 1px solid var(--border);
}

.pain-item {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 34px 16px 34px 0;
  border-bottom: 1px solid var(--border);
  border-radius: 2px;
  transition: background .25s ease, padding-left .25s ease;
}

.pain-item:hover {
  background: #f8f7f3;
  padding-left: 16px;
}

.pain-num {
  font-size: 26px;
  font-weight: 800;
  color: #d3d8d2;
  letter-spacing: -1px;
  transition: color .2s ease;
  font-variant-numeric: tabular-nums;
}

.pain-item:hover .pain-num {
  color: var(--accent);
}

.pain-title {
  font-size: clamp(17px, 2vw, 22px);
  font-weight: 700;
  line-height: 1.55;
  margin-bottom: 4px;
}

.pain-desc {
  color: var(--text-sec);
  font-size: 15px;
  margin-top: 6px;
  max-width: 640px;
}

.pain-link {
  font-size: 14px;
  color: var(--brand);
  font-weight: 600;
  white-space: nowrap;
}

@media (max-width: 840px) {
  .pain-item {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 24px 0;
  }
  .pain-num {
    font-size: 20px;
  }
}

/* ========== 解决方案 ========== */
.solution-wrap {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 64px;
  align-items: start;
}

.solution-sticky {
  position: sticky;
  top: 120px;
}

.solution-cards {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.solution-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px;
  transition: box-shadow .3s ease, transform .3s ease, border-color .3s ease;
}

.solution-card:hover {
  border-color: #bfd3c7;
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.card-icon {
  display: inline-flex;
  width: 50px;
  height: 50px;
  border-radius: 12px;
  background: var(--mint);
  color: var(--brand);
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.solution-card h3 {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 10px;
}

.solution-card .desc {
  color: var(--text-sec);
  font-size: 15px;
  line-height: 1.75;
  margin-bottom: 20px;
}

.check-list li {
  position: relative;
  padding-left: 24px;
  line-height: 1.75;
  color: #33413a;
  margin-bottom: 8px;
  list-style: none;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 12px;
  width: 7px;
  height: 7px;
  background: var(--accent);
  border-radius: 1px;
  transform: rotate(45deg);
}

.solution-card .card-footer {
  margin-top: 22px;
}

.extra-card {
  background: var(--dark);
  color: #f7f5ef;
  border: none;
  border-radius: 12px;
  padding: 32px 36px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 24px;
  align-items: center;
}

.extra-num {
  font-size: 42px;
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
}

.extra-card h4 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 4px;
}

.extra-card p {
  font-size: 14px;
  color: rgba(255, 255, 255, .72);
}

@media (max-width: 1024px) {
  .solution-wrap {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .solution-sticky {
    position: static;
  }
}

@media (max-width: 640px) {
  .solution-card {
    padding: 24px;
  }
  .extra-card {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .extra-num {
    font-size: 32px;
  }
}

/* ========== 数据区 ========== */
.stats-section {
  background-color: var(--dark);
  color: #f5f3ef;
}

.stats-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: center;
}

.stats-copy .section-eyebrow {
  color: #e1c48a;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 36px 30px;
}

.stat-item {
  border-top: 2px solid rgba(197, 140, 45, .45);
  padding-top: 24px;
}

.stat-num {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -.5px;
  margin-bottom: 8px;
  color: #fbfaf6;
}

.stat-label {
  color: rgba(255, 255, 255, .65);
  font-size: 14px;
}

@media (max-width: 960px) {
  .stats-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 520px) {
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

/* ========== 资讯/CMS区 ========== */
.news-feature {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: box-shadow .3s ease, transform .3s ease;
}

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

.news-feature-cover {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3/2;
  background: #dfe7e0;
}

.news-feature-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-feature-body {
  padding: 28px 26px 24px;
}

.news-feature-body h3 {
  font-size: 21px;
  font-weight: 700;
  line-height: 1.45;
  margin: 12px 0 8px;
  transition: color .2s ease;
}

.news-feature:hover .news-feature-body h3 {
  color: var(--brand-dark);
}

.news-feature-body .summary {
  color: var(--text-sec);
  font-size: 15px;
  line-height: 1.75;
  margin-bottom: 12px;
}

.news-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  font-size: 13px;
  color: #7c8a82;
}

.empty-block {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 260px;
  border: 1px dashed #c9d7cd;
  border-radius: 14px;
  color: var(--text-sec);
  font-size: 16px;
  background: rgba(255, 255, 255, .7);
}

.empty-icon {
  font-size: 34px;
  color: #a4bbb0;
  margin-bottom: 12px;
}

.news-list {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0 24px;
}

.news-row {
  display: grid;
  grid-template-columns: 78px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 22px 4px;
  border-bottom: 1px solid #edf0eb;
  transition: padding-left .25s ease;
}

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

.news-row:hover {
  padding-left: 10px;
}

.news-row time {
  font-size: 13px;
  color: #8b9890;
  font-variant-numeric: tabular-nums;
}

.news-row h4 {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  transition: color .2s ease;
}

.news-row:hover h4 {
  color: var(--brand);
}

.news-row .row-arrow {
  color: #adbdb3;
  transition: color .2s ease, transform .2s ease;
  font-size: 18px;
}

.news-row:hover .row-arrow {
  color: var(--accent);
  transform: translateX(4px);
}

.news-bottom-link {
  margin-top: 28px;
  display: flex;
  justify-content: center;
}

.badge {
  display: inline-block;
  background: var(--mint);
  color: var(--brand-dark);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
}

.badge-light {
  background: rgba(255, 255, 255, .14);
  color: #fff;
}

@media (max-width: 640px) {
  .news-row {
    grid-template-columns: 1fr auto;
  }
  .news-row time {
    grid-column: 1 / -1;
    font-size: 12px;
  }
}

/* ========== CTA / 表单区 ========== */
.contact-section {
  background: var(--bg);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.contact-left .section-title {
  margin-bottom: 16px;
}

.contact-intro p {
  color: var(--text-sec);
  line-height: 1.85;
  margin-bottom: 12px;
  font-size: 16px;
}

.contact-points {
  margin-top: 22px;
}

.contact-points li {
  position: relative;
  list-style: none;
  padding-left: 28px;
  margin-bottom: 12px;
  color: #2d3d35;
  font-size: 15px;
  line-height: 1.7;
}

.contact-points li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 9px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  opacity: .85;
}

.form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 38px;
  box-shadow: var(--shadow-sm);
}

.form-card h3 {
  font-size: 21px;
  font-weight: 700;
  margin-bottom: 6px;
}

.form-card .form-note {
  color: var(--text-sec);
  font-size: 14px;
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 6px;
  color: #33413a;
}

.form-input {
  width: 100%;
  border: 1px solid #d6ded6;
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 15px;
  background: #fcfcfa;
  transition: border-color .2s ease, box-shadow .2s ease;
}

.form-input:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(14, 107, 75, .12);
}

textarea.form-input {
  min-height: 100px;
  resize: vertical;
}

.form-submit {
  width: 100%;
  margin-top: 8px;
}

.form-privacy {
  font-size: 12px;
  color: #9a9f9b;
  line-height: 1.6;
  margin-top: 14px;
  text-align: center;
}

.form-success {
  display: none;
  text-align: center;
  padding: 28px 12px;
  color: var(--brand-dark);
  font-weight: 600;
}

.form-success.show {
  display: block;
}

@media (max-width: 960px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .form-card {
    padding: 28px 22px;
  }
}

/* ========== Footer ========== */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, .85);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-top: 64px;
  padding-bottom: 48px;
}

.footer-brand .brand-logo {
  font-size: 24px;
  margin-bottom: 14px;
}

.footer-brand .brand-name {
  color: #fff;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .62);
  margin-bottom: 12px;
)

.footer-tip {
  font-size: 12px;
  color: rgba(255, 255, 255, .45);
  line-height: 1.6;
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding-top: 14px;
  margin-top: 4px;
}

.footer-title {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}

.footer-links li {
  list-style: none;
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 14px;
  color: rgba(255, 255, 255, .66);
  transition: color .2s ease, padding-left .2s ease;
}

.footer-links a:hover {
  color: #e5cd93;
  padding-left: 6px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, .5);
}

@media (max-width: 900px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 640px) {
  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

/* roulang page: article */
:root {
        --bg: #F5F3EF;
        --bg-soft: #EFEBE4;
        --card: #FFFFFF;
        --green-deep: #0C2F26;
        --green: #0E6B4B;
        --green-hover: #0A4F38;
        --green-light: #E8F1EC;
        --gold: #C58C2D;
        --gold-deep: #9A6920;
        --text: #1A241F;
        --text-sub: #3E4B44;
        --muted: #65736B;
        --border: #E2E6E0;
        --radius: 8px;
        --shadow: 0 12px 30px rgba(16, 36, 26, 0.06);
    }

    * {
        box-sizing: border-box;
    }

    html {
        scroll-behavior: smooth;
    }

    body {
        margin: 0;
        font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
        background: var(--bg);
        color: var(--text);
        font-size: 16px;
        line-height: 1.8;
        -webkit-font-smoothing: antialiased;
    }

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

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

    ul {
        padding-left: 1.25rem;
    }

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

    /* Header Nav */
    .site-header {
        background: rgba(255, 255, 255, 0.96);
        border-bottom: 1px solid var(--border);
        position: sticky;
        top: 0;
        z-index: 100;
        backdrop-filter: blur(14px);
    }

    .header-grid {
        display: grid;
        grid-template-columns: 1fr auto 1fr;
        align-items: center;
        height: 72px;
        gap: 24px;
    }

    .header-nav {
        display: flex;
        align-items: center;
        gap: 28px;
    }

    .nav-left {
        justify-content: flex-start;
    }

    .nav-right {
        justify-content: flex-end;
        gap: 22px;
    }

    .site-nav-link {
        position: relative;
        font-size: 15px;
        font-weight: 500;
        color: var(--text-sub);
        padding: 8px 2px;
        white-space: nowrap;
        transition: color .25s ease;
    }

    .site-nav-link:hover {
        color: var(--green);
    }

    .site-nav-link.active {
        color: var(--green-deep);
        font-weight: 700;
    }

    .site-nav-link.active::after {
        content: "";
        position: absolute;
        left: 0;
        right: 0;
        bottom: 0;
        height: 2px;
        border-radius: 2px;
        background: var(--green);
    }

    .brand-logo {
        display: inline-flex;
        align-items: baseline;
        line-height: 1.2;
        letter-spacing: .2px;
        white-space: nowrap;
    }

    .brand-name {
        font-size: 22px;
        font-weight: 900;
        color: var(--green-deep);
    }

    .brand-tag {
        font-size: 15px;
        font-weight: 800;
        color: var(--gold);
        margin-left: 4px;
        letter-spacing: 1px;
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        height: 44px;
        padding: 0 22px;
        border-radius: 6px;
        font-size: 15px;
        font-weight: 700;
        border: 1px solid transparent;
        cursor: pointer;
        transition: all .25s ease;
        white-space: nowrap;
    }

    .btn:focus-visible,
    .mobile-link:focus-visible,
    .site-nav-link:focus-visible,
    a:focus-visible {
        outline: 3px solid rgba(197, 140, 45, .55);
        outline-offset: 2px;
    }

    .btn-sm {
        height: 40px;
        padding: 0 18px;
        font-size: 14px;
    }

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

    .btn-primary:hover {
        background: var(--green-hover);
        transform: translateY(-2px);
        box-shadow: 0 10px 22px rgba(14, 107, 75, 0.22);
    }

    .btn-primary .arrow {
        transition: transform .2s ease;
    }

    .btn-primary:hover .arrow {
        transform: translateX(4px);
    }

    .nav-toggle {
        display: none;
        width: 42px;
        height: 42px;
        border: 1px solid var(--border);
        background: #fff;
        border-radius: 8px;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 5px;
        cursor: pointer;
    }

    .nav-toggle span {
        width: 18px;
        height: 2px;
        background: var(--green-deep);
        border-radius: 2px;
        transition: all .3s ease;
    }

    .nav-toggle.open span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .nav-toggle.open span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.open span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .mobile-nav {
        display: none;
        background: #fff;
        border-top: 1px solid #EDEFEB;
        padding: 16px 24px 28px;
        position: fixed;
        inset: 72px 0 auto 0;
        z-index: 99;
        box-shadow: 0 26px 46px rgba(12, 47, 38, .12);
    }

    .mobile-link {
        display: block;
        padding: 15px 4px;
        font-weight: 600;
        font-size: 16px;
        color: var(--text-sub);
        border-bottom: 1px solid #F0F1EE;
    }

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

    .mobile-cta {
        margin-top: 20px;
        width: 100%;
    }

    /* Article Hero */
    .article-hero {
        color: #F5F3EF;
        padding: 62px 0 66px;
        background:
            linear-gradient(100deg, rgba(12, 47, 38, 0.93), rgba(14, 107, 75, 0.74)),
            url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    }

    .breadcrumb {
        font-size: 13px;
        color: rgba(245, 243, 239, .72);
        margin-bottom: 24px;
        display: flex;
        align-items: center;
        gap: 8px;
        flex-wrap: wrap;
    }

    .breadcrumb a {
        color: rgba(245, 243, 239, .86);
        transition: color .2s;
    }

    .breadcrumb a:hover {
        color: #fff;
    }

    .breadcrumb .sep {
        opacity: .5;
    }

    .breadcrumb .current {
        color: #F5F3EF;
        white-space: nowrap;
        max-width: 320px;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .article-hero-inner {
        max-width: 900px;
    }

    .article-title {
        font-size: clamp(2rem, 4.6vw, 3.6rem);
        line-height: 1.2;
        font-weight: 900;
        margin: 0 0 26px;
        letter-spacing: .02em;
        color: #fff;
    }

    .article-meta {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 12px 18px;
        font-size: 14px;
        color: rgba(245, 243, 239, .82);
    }

    .cat-label,
    .tag-pill,
    .tag-inline {
        display: inline-flex;
        align-items: center;
        background: var(--green-light);
        color: var(--green);
        font-size: 13px;
        font-weight: 700;
        border-radius: 999px;
        padding: 5px 14px;
    }

    .article-hero .cat-label {
        background: rgba(197, 140, 45, .18);
        color: #F3D9A6;
        border: 1px solid rgba(197, 140, 45, .4);
    }

    .meta-time i,
    .meta-min i {
        margin-right: 5px;
        color: var(--gold);
    }

    /* Article Layout */
    .article-detail {
        padding: 56px 0 70px;
    }

    .article-wrap {
        display: grid;
        grid-template-columns: minmax(0, 1fr) 340px;
        gap: 52px;
        align-items: start;
    }

    .article-main {
        min-width: 0;
        background: #fff;
        border: 1px solid var(--border);
        border-radius: 10px;
        padding: clamp(26px, 4vw, 52px);
        box-shadow: var(--shadow);
    }

    .article-body {
        color: var(--text);
        font-size: 17px;
        line-height: 2;
        word-break: break-word;
    }

    .article-body h2,
    .article-body h3 {
        color: var(--green-deep);
        font-weight: 800;
        line-height: 1.45;
        margin: 1.8em 0 .7em;
    }

    .article-body h2 {
        font-size: clamp(1.45rem, 2.2vw, 1.9rem);
        padding-left: 16px;
        border-left: 4px solid var(--gold);
    }

    .article-body h3 {
        font-size: 1.3rem;
    }

    .article-body p {
        margin: 1.15em 0;
        color: #2D3A33;
    }

    .article-body ul,
    .article-body ol {
        margin: 1em 0 1.2em;
        padding-left: 1.8rem;
    }

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

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

    .article-body li {
        margin: .45em 0;
        color: #2D3A33;
    }

    .article-body blockquote {
        margin: 1.6em 0;
        padding: 18px 24px;
        background: #F3F0EA;
        border-left: 4px solid var(--green);
        border-radius: 0 8px 8px 0;
        color: var(--muted);
    }

    .article-body blockquote p {
        color: var(--muted);
    }

    .article-body a {
        color: var(--green);
        text-decoration: underline;
        text-underline-offset: 4px;
        text-decoration-thickness: 1px;
    }

    .article-body a:hover {
        color: var(--gold-deep);
        text-decoration-thickness: 2px;
    }

    .article-body figure {
        margin: 30px 0;
    }

    .article-body figcaption {
        font-size: 13px;
        color: var(--muted);
        text-align: center;
        padding-top: 10px;
    }

    .article-body img {
        border-radius: 8px;
        object-fit: cover;
    }

    .article-footer {
        margin-top: 48px;
        padding-top: 24px;
        border-top: 1px solid var(--border);
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        flex-wrap: wrap;
    }

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

    .btn-outline:hover {
        background: var(--green);
        color: #fff;
        transform: translateY(-2px);
        box-shadow: 0 10px 22px rgba(14, 107, 75, 0.2);
    }

    /* Sidebar */
    .article-sidebar {
        display: flex;
        flex-direction: column;
        gap: 28px;
        position: sticky;
        top: 92px;
    }

    .side-card {
        background: #fff;
        border: 1px solid var(--border);
        border-radius: 10px;
        padding: 24px;
        box-shadow: 0 6px 20px rgba(31, 42, 32, 0.03);
    }

    .side-card h2,
    .side-card h3 {
        font-size: 18px;
        font-weight: 800;
        color: var(--green-deep);
        margin: 0 0 16px;
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .side-card h2 i,
    .side-card h3 i {
        color: var(--gold);
        font-size: 17px;
    }

    .toc-list {
        list-style: none;
        margin: 0;
        padding: 0;
        max-height: 380px;
        overflow-y: auto;
    }

    .toc-list li {
        padding: 0;
        border-bottom: 1px solid #EEEFEB;
    }

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

    .toc-list a {
        display: block;
        padding: 10px 6px;
        font-size: 14px;
        line-height: 1.6;
        color: var(--text-sub);
        border-left: 2px solid transparent;
        transition: all .2s ease;
    }

    .toc-list a:hover {
        color: var(--green);
        padding-left: 10px;
        border-left-color: var(--gold);
    }

    .toc-list .toc-sub {
        padding-left: 18px;
        font-size: 13px;
    }

    .side-cta-card {
        background: var(--green-deep);
        color: #F0EDE6;
        border-radius: 10px;
        padding: 28px 24px;
        position: relative;
        overflow: hidden;
    }

    .side-cta-card::before {
        content: "";
        position: absolute;
        width: 140px;
        height: 140px;
        right: -40px;
        top: -50px;
        border-radius: 50%;
        background: rgba(197, 140, 45, 0.18);
    }

    .side-cta-card h3 {
        color: #fff;
        font-size: 18px;
        margin: 0 0 10px;
        font-weight: 800;
    }

    .side-cta-card p {
        color: rgba(245, 243, 239, .76);
        font-size: 14px;
        margin: 0 0 20px;
    }

    .btn-light {
        background: #F5F1E8;
        color: var(--green-deep);
        border-color: #F5F1E8;
    }

    .btn-light:hover {
        background: #fff8EA;
        transform: translateY(-2px);
    }

    .side-img-card {
        padding: 0;
        overflow: hidden;
        border-radius: 10px;
        background: #fff;
        border: 1px solid var(--border);
    }

    .side-img-card img {
        width: 100%;
        aspect-ratio: 3 / 2;
        object-fit: cover;
    }

    .side-img-body {
        padding: 22px 24px 24px;
    }

    .side-img-body h3 {
        font-size: 17px;
        margin: 0 0 8px;
        line-height: 1.5;
    }

    .side-img-body p {
        font-size: 14px;
        color: var(--muted);
        margin: 0 0 14px;
        line-height: 1.8;
    }

    .textlink {
        display: inline-flex;
        align-items: center;
        gap: 5px;
        color: var(--green);
        font-weight: 700;
        font-size: 14px;
        position: relative;
    }

    .textlink::after {
        content: "";
        position: absolute;
        left: 0;
        right: 100%;
        bottom: -2px;
        height: 2px;
        background: var(--green);
        transition: right .3s ease;
    }

    .textlink:hover::after {
        right: 0;
    }

    .textlink i {
        transition: transform .3s;
    }

    .textlink:hover i {
        transform: translateX(4px);
    }

    .hidden {
        display: none !important;
    }

    /* Not found */
    .not-found-card {
        text-align: center;
        background: #fff;
        border: 1px solid var(--border);
        border-radius: 12px;
        padding: 70px 30px;
        box-shadow: var(--shadow);
    }

    .not-found-card .icon-circle {
        width: 70px;
        height: 70px;
        border-radius: 50%;
        background: var(--green-light);
        color: var(--green);
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 auto 22px;
        font-size: 28px;
    }

    .not-found-card h2 {
        font-size: 26px;
        color: var(--green-deep);
        margin: 0 0 12px;
        font-weight: 800;
    }

    .not-found-card p {
        color: var(--muted);
        max-width: 440px;
        margin: 0 auto 26px;
    }

    /* Related Topics */
    .related-section {
        margin-top: 60px;
    }

    .section-title-wrap {
        display: flex;
        justify-content: space-between;
        align-items: flex-end;
        gap: 20px;
        margin-bottom: 26px;
    }

    .section-title {
        font-size: clamp(1.5rem, 2.5vw, 2rem);
        font-weight: 800;
        color: var(--green-deep);
        line-height: 1.3;
        margin: 0;
    }

    .section-title span {
        color: var(--gold);
    }

    .section-sub {
        color: var(--muted);
        font-size: 15px;
    }

    .related-grid {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 24px;
    }

    .topic-card {
        background: #fff;
        border: 1px solid var(--border);
        border-radius: 10px;
        overflow: hidden;
        display: flex;
        gap: 0;
        transition: box-shadow .3s, transform .3s, border-color .3s;
    }

    .topic-card:hover {
        transform: translateY(-4px);
        border-color: #A5C9B4;
        box-shadow: 0 16px 34px rgba(12, 47, 38, .09);
    }

    .topic-card-img {
        width: 150px;
        flex-shrink: 0;
    }

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

    .topic-card-body {
        padding: 22px 22px 18px;
    }

    .topic-tag {
        display: inline-flex;
        font-size: 12px;
        font-weight: 700;
        color: var(--green);
        background: var(--green-light);
        border-radius: 999px;
        padding: 3px 10px;
        margin-bottom: 10px;
    }

    .topic-card-body h3 {
        font-size: 18px;
        line-height: 1.5;
        font-weight: 800;
        margin: 0 0 10px;
        color: var(--text);
    }

    .topic-card-body p {
        font-size: 14px;
        color: var(--muted);
        margin: 0 0 14px;
        line-height: 1.75;
    }

    /* Footer */
    .site-footer {
        background: var(--green-deep);
        color: rgba(245, 243, 239, .84);
        padding-top: 70px;
    }

    .footer-top {
        display: grid;
        grid-template-columns: 1.4fr 1fr 1fr;
        gap: 48px;
        padding-bottom: 42px;
    }

    .footer-brand .brand-name {
        color: #fff;
    }

    .footer-desc {
        font-size: 14px;
        line-height: 1.9;
        color: rgba(245, 243, 239, .82);
        margin: 20px 0 12px;
    }

    .footer-tip {
        font-size: 13px;
        color: rgba(232, 241, 236, .55);
        background: rgba(245, 243, 239, .06);
        border-radius: 8px;
        padding: 12px 16px;
        margin: 0;
        line-height: 1.8;
    }

    .footer-title {
        color: #F5F3EF;
        font-size: 16px;
        font-weight: 800;
        margin: 0 0 18px;
    }

    .footer-links {
        list-style: none;
        margin: 0;
        padding: 0;
    }

    .footer-links li {
        padding: 5px 0;
        font-size: 15px;
        color: rgba(245, 243, 239, .66);
    }

    .footer-links a {
        color: rgba(245, 243, 239, .78);
        transition: color .2s;
    }

    .footer-links a:hover {
        color: var(--gold);
    }

    .footer-bottom {
        border-top: 1px solid rgba(245, 243, 239, .12);
        padding: 22px 0;
        font-size: 13px;
        color: rgba(245, 243, 239, .48);
    }

    /* Responsive */
    @media (max-width: 1100px) {
        .article-wrap {
            grid-template-columns: 1fr;
        }

        .article-sidebar {
            position: static;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            align-items: start;
        }

        .side-img-card {
            grid-column: span 2;
        }
    }

    @media (max-width: 900px) {
        .header-grid {
            display: flex;
            justify-content: space-between;
            height: 68px;
        }

        .header-nav {
            display: none;
        }

        .nav-toggle {
            display: inline-flex;
        }

        .brand-name {
            font-size: 20px;
        }

        .mobile-nav {
            display: block;
            pointer-events: none;
            opacity: 0;
            transform: translateY(-12px);
            transition: opacity .25s ease, transform .25s ease;
        }

        .mobile-nav.open {
            opacity: 1;
            pointer-events: auto;
            transform: translateY(0);
        }

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

    @media (max-width: 640px) {
        .container {
            padding: 0 18px;
        }

        .article-hero {
            padding: 48px 0 56px;
        }

        .article-detail {
            padding: 34px 0 56px;
        }

        .article-main {
            padding: 24px 18px;
            border-radius: 8px;
        }

        .article-body {
            font-size: 16px;
            line-height: 1.92;
        }

        .article-sidebar {
            grid-template-columns: 1fr;
        }

        .side-img-card {
            grid-column: span 1;
        }

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

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

        .topic-card-img {
            width: 100%;
            aspect-ratio: 3 / 1.6;
        }

        .section-title-wrap {
            flex-direction: column;
            align-items: flex-start;
        }

        .footer-top {
            grid-template-columns: 1fr;
            gap: 34px;
            padding-bottom: 30px;
        }
    }

/* roulang page: category1 */
:root {
      --bg: #F5F3EF;
      --card: #FFFFFF;
      --ink: #1A241F;
      --ink-soft: #5C6A62;
      --line: #E2E6E0;
      --brand: #0E6B4B;
      --brand-dark: #0A4F38;
      --brand-deep: #0C2F26;
      --accent: #C58C2D;
      --accent-dark: #9A6920;
      --muted-green: #E8F1EC;
      --warm-panel: #FAF3E3;
      --radius: 8px;
      --shadow-sm: 0 2px 10px rgba(26, 36, 31, 0.04), 0 1px 2px rgba(26, 36, 31, 0.04);
      --shadow-hover: 0 14px 32px rgba(12, 47, 38, 0.12), 0 3px 8px rgba(12, 47, 38, 0.06);
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      background: var(--bg);
      color: var(--ink);
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
      font-size: 16px;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

    body.is-locked {
      overflow: hidden;
    }

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

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

    ul, ol {
      margin: 0;
      padding: 0;
    }

    button {
      font: inherit;
      border: 0;
      background: none;
      cursor: pointer;
    }

    a:focus-visible,
    button:focus-visible,
    .faq-q:focus-visible {
      outline: 3px solid rgba(197, 140, 45, 0.65);
      outline-offset: 3px;
      border-radius: 6px;
    }

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

    .section {
      padding: clamp(3.5rem, 7vw, 6rem) 0;
    }

    .section-paper {
      background: #FFFFFF;
    }

    .section-soft {
      background: var(--bg);
    }

    .section-deep {
      background: var(--brand-deep);
      color: #F5F3EF;
    }

    .section-head {
      max-width: 880px;
      margin-bottom: clamp(2rem, 4vw, 3.2rem);
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      letter-spacing: 0.14em;
      font-size: 0.78rem;
      font-weight: 700;
      color: var(--accent-dark);
      text-transform: uppercase;
      margin-bottom: 0.8rem;
    }

    .section-title {
      font-size: clamp(1.7rem, 3vw, 2.6rem);
      font-weight: 800;
      line-height: 1.2;
      letter-spacing: -0.02em;
      color: var(--ink);
      margin: 0 0 0.9rem;
    }

    .section-sub {
      font-size: 1.08rem;
      color: var(--ink-soft);
      margin: 0;
    }

    .white .section-title,
    .section-deep .section-title {
      color: #FFFDF8;
    }

    .white .section-sub {
      color: rgba(255, 253, 248, 0.76);
    }

    /* ============ header ============ */
    .site-header {
      position: sticky;
      top: 0;
      left: 0;
      right: 0;
      z-index: 50;
      background: rgba(245, 243, 239, 0.92);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(226, 230, 224, 0.85);
    }

    .header-grid {
      display: grid;
      grid-template-columns: 1fr auto 1fr;
      grid-template-areas: "left brand right";
      align-items: center;
      min-height: 74px;
      gap: 1rem;
    }

    .header-nav {
      display: flex;
      align-items: center;
      gap: 1.5rem;
    }

    .nav-left {
      grid-area: left;
      display: flex;
      justify-content: flex-start;
    }

    .nav-right {
      grid-area: right;
      display: flex;
      justify-content: flex-end;
      align-items: center;
      gap: 1.2rem;
    }

    .brand-logo {
      display: inline-flex;
      align-items: baseline;
      gap: 0.25rem;
      font-size: 1.3rem;
      line-height: 1;
      white-space: nowrap;
      font-weight: 800;
    }

    .brand-logo .brand-name {
      color: var(--brand-deep);
    }

    .brand-logo .brand-tag {
      color: var(--accent-dark);
      font-weight: 700;
    }

    .site-nav-link {
      position: relative;
      font-size: 0.94rem;
      font-weight: 600;
      color: #37473E;
      padding: 0.35rem 0;
      transition: color 0.2s ease;
    }

    .site-nav-link:not(.btn):hover {
      color: var(--brand);
    }

    .site-nav-link.active {
      color: var(--brand-dark);
    }

    .site-nav-link.active::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: -3px;
      height: 2px;
      border-radius: 4px;
      background: var(--accent);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      padding: 0.75rem 1.3rem;
      border-radius: 6px;
      font-weight: 700;
      font-size: 0.95rem;
      line-height: 1.3;
      border: 1px solid transparent;
      transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    }

    .btn-sm {
      padding: 0.5rem 1rem;
      font-size: 0.9rem;
    }

    .btn-primary {
      background: var(--brand);
      color: #FFFDF8;
      box-shadow: 0 4px 12px rgba(14, 107, 75, 0.16);
    }

    .btn-primary:hover {
      background: var(--brand-dark);
      transform: translateY(-2px);
      box-shadow: 0 10px 22px rgba(12, 47, 38, 0.18);
    }

    .btn-light {
      background: #FFFDF8;
      color: var(--brand-dark);
    }

    .btn-light:hover {
      background: var(--muted-green);
      transform: translateY(-2px);
      box-shadow: 0 12px 24px rgba(0, 0, 0, 0.14);
    }

    .btn-outline-light {
      background: transparent;
      color: #FFFDF8;
      border-color: rgba(255, 255, 255, 0.72);
    }

    .btn-outline-light:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: #FFFDF8;
      transform: translateY(-2px);
    }

    .nav-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 8px;
      border: 1px solid var(--line);
      background: rgba(255, 255, 255, 0.7);
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 5px;
      z-index: 60;
    }

    .nav-toggle span {
      width: 20px;
      height: 2px;
      background: var(--brand-dark);
      border-radius: 4px;
      transition: transform 0.3s ease, opacity 0.3s ease;
    }

    .nav-toggle.open span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }

    .nav-toggle.open span:nth-child(2) {
      opacity: 0;
    }

    .nav-toggle.open span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

    .mobile-nav {
      max-height: 0;
      overflow: hidden;
      background: rgba(245, 243, 239, 0.98);
      border-bottom: 1px solid var(--line);
      transition: max-height 0.3s ease;
      display: flex;
      flex-direction: column;
      padding: 0 24px;
    }

    .mobile-nav.open {
      max-height: 360px;
    }

    .mobile-nav .mobile-link {
      padding: 1rem 0.25rem;
      font-weight: 600;
      color: #37473E;
      border-bottom: 1px solid rgba(226, 230, 224, 0.8);
    }

    .mobile-nav .mobile-link.active {
      color: var(--brand-dark);
    }

    .mobile-nav .mobile-cta {
      margin-top: 1rem;
      margin-bottom: 1.25rem;
    }

    /* ============ hero ============ */
    .category-hero {
      position: relative;
      background-color: var(--brand-deep);
      background-image: linear-gradient(120deg, rgba(9, 34, 27, 0.9) 0%, rgba(12, 47, 38, 0.82) 58%, rgba(17, 61, 46, 0.7) 100%), url("/assets/images/backpic/back-2.webp");
      background-position: center;
      background-size: cover;
      color: #FFFDF8;
      padding: clamp(4rem, 9vw, 7rem) 0;
      border-bottom: 4px solid var(--accent);
      overflow: hidden;
    }

    .category-hero .container {
      max-width: 1040px;
    }

    .hero-crumb {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.82rem;
      color: rgba(255, 253, 248, 0.68);
      margin-bottom: 1.4rem;
    }

    .hero-crumb a {
      color: rgba(255, 253, 248, 0.78);
      transition: color 0.2s ease;
    }

    .hero-crumb a:hover {
      color: #F8D97B;
    }

    .crumb-sep {
      opacity: 0.45;
    }

    .hero-overline {
      display: inline-flex;
      align-items: center;
      gap: 0.6rem;
      color: #E9B75E;
      font-size: 0.82rem;
      font-weight: 700;
      letter-spacing: 0.12em;
      margin-bottom: 1rem;
    }

    .hero-overline i {
      font-size: 18px;
    }

    .category-hero h1 {
      font-size: clamp(2.25rem, 6vw, 4.4rem);
      font-weight: 900;
      line-height: 1.08;
      margin: 0 0 1.3rem;
      color: #FFFFFF;
      letter-spacing: -0.02em;
    }

    .category-hero h1 .accent-text {
      color: #E9B75E;
    }

    .hero-lead {
      font-size: clamp(1rem, 1.6vw, 1.15rem);
      color: rgba(255, 253, 248, 0.85);
      max-width: 760px;
      line-height: 1.85;
      margin: 0 0 2rem;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 0.9rem;
    }

    .hero-actions .btn {
      min-height: 48px;
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }

    .hero-metrics {
      display: flex;
      flex-wrap: wrap;
      gap: 2rem;
      margin-top: 2.4rem;
      border-top: 1px solid rgba(255, 255, 255, 0.16);
      padding-top: 1.6rem;
    }

    .hero-metric {
      display: inline-flex;
      align-items: center;
      gap: 0.55rem;
      font-size: 0.88rem;
      color: rgba(255, 253, 248, 0.8);
    }

    .hero-metric i {
      color: #E9B75E;
      font-size: 14px;
      width: 16px;
    }

    /* ============ core cards ============ */
    .card-grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 22px;
    }

    .core-card {
      background: #FFF;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 1.8rem 1.6rem;
      box-shadow: var(--shadow-sm);
      transition: transform 0.2s ease, box-shadow 0.24s ease, border-color 0.24s ease;
      position: relative;
    }

    .core-card:hover {
      transform: translateY(-4px);
      border-color: rgba(14, 107, 75, 0.4);
      box-shadow: var(--shadow-hover);
    }

    .core-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background: var(--muted-green);
      color: var(--brand);
      font-size: 20px;
      margin-bottom: 1.1rem;
    }

    .core-card:nth-child(2) .core-icon {
      color: var(--accent-dark);
      background: #F8EED9;
    }

    .core-card h3 {
      font-size: 1.08rem;
      font-weight: 800;
      margin: 0 0 0.6rem;
    }

    .core-card p {
      font-size: 0.92rem;
      line-height: 1.75;
      color: var(--ink-soft);
      margin: 0;
    }

    /* ============ check visual section ============ */
    .check-panel {
      display: grid;
      grid-template-columns: 0.95fr 1.05fr;
      background: #FFF;
      border: 1px solid var(--line);
      border-radius: 16px;
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .check-image {
      position: relative;
      min-height: 340px;
      overflow: hidden;
    }

    .check-image img {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .check-image::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(12, 47, 38, 0) 30%, rgba(12, 47, 38, 0.62) 100%);
    }

    .check-badge {
      position: absolute;
      left: 1.2rem;
      bottom: 1.2rem;
      z-index: 2;
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      background: rgba(255, 253, 248, 0.94);
      color: var(--brand-dark);
      padding: 0.55rem 0.9rem;
      border-radius: 40px;
      font-size: 0.86rem;
      font-weight: 700;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.14);
    }

    .check-list {
      padding: clamp(2rem, 4vw, 3.5rem);
    }

    .check-list h2 {
      font-size: clamp(1.5rem, 2.4vw, 2rem);
      font-weight: 800;
      line-height: 1.25;
      margin: 0 0 1.2rem;
    }

    .check-list p.lead {
      color: var(--ink-soft);
      margin: 0 0 1.5rem;
    }

    .checks {
      list-style: none;
      display: grid;
      gap: 0.8rem;
    }

    .checks li {
      display: flex;
      align-items: flex-start;
      gap: 0.7rem;
      border-bottom: 1px dashed var(--line);
      padding-bottom: 0.8rem;
      font-size: 0.95rem;
    }

    .checks li:last-child {
      border-bottom: 0;
      padding-bottom: 0;
    }

    .checks li i {
      color: var(--brand);
      margin-top: 0.4rem;
      font-size: 17px;
      width: 20px;
      text-align: center;
    }

    /* ============ step flow ============ */
    .step-flow-wrap {
      position: relative;
      max-width: 880px;
      margin: 0 auto;
      padding-left: 3.6rem;
    }

    .step-flow-wrap::before {
      content: "";
      position: absolute;
      left: 1.2rem;
      top: 8px;
      bottom: 8px;
      width: 2px;
      background: linear-gradient(180deg, var(--brand) 0%, rgba(14, 107, 75, 0.12) 92%);
      border-radius: 6px;
    }

    .step-item {
      position: relative;
      margin-bottom: 2.1rem;
    }

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

    .step-num {
      position: absolute;
      left: -3.6rem;
      top: 0;
      width: 2.4rem;
      height: 2.4rem;
      border-radius: 50%;
      background: var(--brand);
      color: #fff;
      font-weight: 900;
      font-size: 0.95rem;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 0 0 6px #EDF3EC;
      letter-spacing: -0.03em;
    }

    .step-item:nth-child(even) .step-num {
      background: var(--accent);
    }

    .step-card {
      background: #FFFFFF;
      border: 1px solid var(--line);
      border-left: 3px solid var(--brand);
      border-radius: 10px;
      padding: 1.5rem 1.7rem 1.55rem;
      box-shadow: var(--shadow-sm);
      transition: transform 0.2s ease, box-shadow 0.24s ease;
    }

    .step-item:nth-child(even) .step-card {
      border-left-color: var(--accent);
    }

    .step-card:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-hover);
    }

    .step-card h3 {
      font-size: 1.16rem;
      font-weight: 800;
      margin: 0 0 0.35rem;
    }

    .step-card .step-desc {
      font-size: 0.92rem;
      color: var(--ink-soft);
      margin: 0 0 0.75rem;
    }

    .step-card ul {
      list-style: none;
      margin: 0;
    }

    .step-card ul li {
      position: relative;
      padding-left: 1.35rem;
      font-size: 0.94rem;
      color: #354A3E;
      margin-bottom: 0.4rem;
    }

    .step-card ul li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 0.66em;
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--accent);
    }

    /* ============ caution ============ */
    .caution-band {
      margin-top: 3rem;
      max-width: 880px;
      margin-left: auto;
      margin-right: auto;
      display: flex;
      gap: 1rem;
      align-items: flex-start;
      background: var(--warm-panel);
      border-left: 4px solid var(--accent);
      border-radius: 0 10px 10px 0;
      padding: 1.5rem 1.7rem;
    }

    .caution-band i {
      color: var(--accent-dark);
      font-size: 22px;
      margin-top: 0.2rem;
    }

    .caution-band h3 {
      font-size: 1.05rem;
      font-weight: 800;
      margin: 0 0 0.3rem;
      color: #5A4317;
    }

    .caution-band p {
      font-size: 0.94rem;
      color: #6E5A30;
      margin: 0;
    }

    /* ============ faq ============ */
    .faq-wrap {
      max-width: 920px;
      margin: 0 auto;
      border-top: 1px solid var(--line);
    }

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

    .faq-q {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1.2rem;
      width: 100%;
      text-align: left;
      padding: 1.3rem 0.25rem;
      font-size: 1.04rem;
      line-height: 1.5;
      font-weight: 700;
      color: var(--ink);
      transition: color 0.2s ease;
    }

    .faq-q:hover {
      color: var(--brand);
    }

    .faq-item.open .faq-q {
      color: var(--brand);
    }

    .faq-icon {
      flex: 0 0 26px;
      width: 26px;
      height: 26px;
      border-radius: 50%;
      border: 1.5px solid var(--line);
      position: relative;
      transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
    }

    .faq-icon::before,
    .faq-icon::after {
      content: "";
      position: absolute;
      left: 50%;
      top: 50%;
      width: 11px;
      height: 2px;
      background: var(--brand);
      transform: translate(-50%, -50%);
      transition: transform 0.3s ease;
    }

    .faq-icon::after {
      transform: translate(-50%, -50%) rotate(90deg);
    }

    .faq-item.open .faq-icon {
      background: var(--brand);
      border-color: var(--brand);
      transform: rotate(180deg);
    }

    .faq-item.open .faq-icon::before,
    .faq-item.open .faq-icon::after {
      background: #FFFDF8;
    }

    .faq-item.open .faq-icon::after {
      transform: translate(-50%, -50%) rotate(0deg);
    }

    .faq-a {
      display: grid;
      grid-template-rows: 0fr;
      transition: grid-template-rows 0.35s ease;
    }

    .faq-a-inner {
      overflow: hidden;
    }

    .faq-item.open .faq-a {
      grid-template-rows: 1fr;
    }

    .faq-a p {
      padding: 0 3rem 1.5rem 0.25rem;
      margin: 0;
      color: var(--ink-soft);
      font-size: 0.98rem;
    }

    /* ============ CTA ============ */
    .cta-band {
      background-color: var(--brand-deep);
      background-image: linear-gradient(100deg, rgba(8, 30, 24, 0.92) 10%, rgba(12, 47, 38, 0.8) 65%, rgba(13, 58, 43, 0.7)), url("/assets/images/backpic/back-1.webp");
      background-position: center;
      background-size: cover;
      color: #FFFDF8;
      padding: clamp(3.5rem, 7vw, 5.5rem) 0;
    }

    .cta-inner {
      max-width: 860px;
      text-align: center;
      margin: 0 auto;
    }

    .cta-inner h2 {
      font-size: clamp(1.8rem, 3.6vw, 2.7rem);
      font-weight: 800;
      margin: 0 0 1rem;
      letter-spacing: -0.02em;
    }

    .cta-inner p {
      color: rgba(255, 253, 248, 0.82);
      font-size: 1.05rem;
      max-width: 720px;
      margin: 0 auto 2rem;
      line-height: 1.9;
    }

    .cta-btns {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 0.9rem;
    }

    .cta-btns .btn {
      min-height: 48px;
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }

    /* ============ footer ============ */
    .site-footer {
      background: #0A2B22;
      color: rgba(255, 253, 248, 0.78);
    }

    .footer-top {
      display: grid;
      grid-template-columns: 1.6fr 0.8fr 1fr;
      gap: 3rem;
      padding: 4rem 0 2.2rem;
    }

    .footer-brand .brand-logo {
      margin-bottom: 0.9rem;
    }

    .footer-brand .brand-logo .brand-name {
      color: #F5F3EF;
    }

    .footer-desc {
      font-size: 0.95rem;
      line-height: 1.9;
      max-width: 420px;
      color: rgba(255, 253, 248, 0.74);
      margin: 0 0 1rem;
    }

    .footer-tip {
      font-size: 0.83rem;
      line-height: 1.8;
      color: rgba(255, 253, 248, 0.5);
      margin: 0;
    }

    .footer-title {
      color: #FFFDF8;
      font-size: 1rem;
      font-weight: 700;
      margin: 0.3rem 0 1.2rem;
    }

    .footer-links {
      list-style: none;
      display: grid;
      gap: 0.75rem;
      font-size: 0.92rem;
    }

    .footer-links a {
      color: rgba(255, 253, 248, 0.72);
      transition: color 0.2s ease;
    }

    .footer-links a:hover {
      color: #E9B75E;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding: 1.5rem 0;
      color: rgba(255, 253, 248, 0.46);
      font-size: 0.84rem;
    }

    .footer-bottom p {
      margin: 0;
    }

    /* ============ responsive ============ */
    @media (max-width: 991px) {
      .header-nav {
        display: none !important;
      }

      .nav-toggle {
        display: inline-flex;
      }

      .header-grid {
        display: flex;
        justify-content: center;
        align-items: center;
        position: relative;
        min-height: 66px;
      }

      .brand-logo {
        margin: 0 auto;
      }

      .nav-toggle {
        position: absolute;
        right: 12px;
        top: 50%;
        transform: translateY(-50%);
      }

      .brand-logo {
        font-size: 1.15rem;
      }

      .card-grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }

      .check-panel {
        grid-template-columns: 1fr;
      }

      .check-image {
        min-height: 260px;
      }

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

    @media (max-width: 767px) {
      .container {
        padding-left: 18px;
        padding-right: 18px;
      }

      .section {
        padding: 2.7rem 0;
      }

      .hero-actions {
        flex-direction: column;
        align-items: stretch;
      }

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

      .card-grid-4 {
        grid-template-columns: 1fr;
      }

      .step-flow-wrap {
        padding-left: 0;
      }

      .step-flow-wrap::before {
        left: -0.2rem;
      }

      .step-num {
        position: relative;
        left: 0;
        top: 0;
        margin-bottom: 0.6rem;
        font-size: 0.9rem;
        width: 2.1rem;
        height: 2.1rem;
      }

      .step-card {
        padding: 1.25rem 1.2rem;
      }

      .step-item {
        margin-bottom: 1.7rem;
      }

      .step-item .step-card {
        margin-left: 0;
      }

      .faq-a p {
        padding-right: 0.25rem;
      }

      .footer-top {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 2.8rem 0 1.5rem;
      }

      .cta-btns {
        flex-direction: column;
        align-items: stretch;
      }

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

      .hero-metrics {
        gap: 1rem 1.4rem;
      }

      .category-hero h1 {
        font-size: clamp(1.9rem, 8vw, 2.6rem);
      }
    }

    @media (max-width: 520px) {
      .hero-metric {
        font-size: 0.83rem;
      }

      .core-card {
        padding: 1.4rem 1.2rem;
      }

      .check-badge {
        font-size: 0.8rem;
      }

      .caution-band {
        flex-direction: column;
      }
    }

/* roulang page: category2 */
:root{
  --bg:#F5F3EF;
  --card:#FFFFFF;
  --deep:#0C2F26;
  --green:#0E6B4B;
  --green-hover:#0A4F38;
  --gold:#C58C2D;
  --gold-deep:#9A6920;
  --ink:#1A241F;
  --muted:#5C6A62;
  --line:#E2E6E0;
  --soft:#E8F1EC;
  --amber-bg:#FBF3E7;
  --amber-line:#EBD3A3;
  --radius:8px;
  --shadow:0 8px 24px rgba(28,46,38,.05);
  --header-height:76px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{background:var(--bg);scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;line-height:1.7;color:var(--ink);background:var(--bg)}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;border:none;background:none;cursor:pointer}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid rgba(14,107,75,.35);outline-offset:2px;border-radius:4px}

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

/* header ===== */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.header-grid{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;min-height:var(--header-height);gap:16px}
.brand-logo{display:inline-flex;align-items:center;gap:8px;justify-content:center}
.brand-name{color:var(--green-hover);font-size:23px;font-weight:900;letter-spacing:-.3px}
.brand-tag{color:var(--green);background:var(--soft);padding:4px 10px;font-size:15px;font-weight:700;border-radius:999px;line-height:1.3}
.header-nav{display:flex;gap:4px;align-items:center}
.nav-left{justify-content:flex-start}
.nav-right{justify-content:flex-end}
.site-nav-link{position:relative;padding:10px 13px;font-weight:500;font-size:15px;color:var(--muted);border-radius:6px;transition:color .2s ease,background .2s ease}
.site-nav-link::after{content:"";position:absolute;left:13px;right:13px;bottom:5px;height:2px;border-radius:2px;background:var(--green);opacity:0;transform:scaleX(.4);transition:all .25s ease}
.site-nav-link:hover{color:var(--green)}
.site-nav-link:hover::after{opacity:.4;transform:scaleX(.8)}
.site-nav-link.active{color:var(--green)}
.site-nav-link.active::after{opacity:1;transform:scaleX(1)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:inherit;font-weight:600;border-radius:6px;line-height:1.2;transition:all .25s ease;white-space:nowrap}
.btn-primary{background:var(--green);color:#fff;padding:13px 26px;font-size:15px}
.btn-primary:hover{background:var(--green-hover);transform:translateY(-2px);box-shadow:0 8px 20px rgba(14,107,75,.18)}
.btn-outline{border:1px solid #C7D1CA;color:var(--green-hover);background:transparent;padding:12px 24px;font-size:15px}
.btn-outline:hover{border-color:var(--green);color:var(--green);transform:translateY(-2px)}
.btn-light{background:#FFF9EF;color:var(--green-hover);padding:13px 26px;font-size:15px}
.btn-light:hover{background:#fff;color:var(--green);transform:translateY(-2px);box-shadow:0 10px 24px rgba(0,0,0,.15)}
.btn-outline-white{background:transparent;border:1px solid rgba(255,255,255,.55);color:#fff;padding:12px 24px;font-size:15px}
.btn-outline-white:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:14px}

.nav-toggle{display:none;width:46px;height:46px;flex-direction:column;align-items:center;justify-content:center;gap:5px;border-radius:8px;border:1px solid var(--line);background:#fff}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:all .3s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-nav{display:none;max-height:0;overflow:hidden;background:#fff;transition:max-height .35s ease,padding .3s ease;padding:0 24px}
.mobile-nav.open{max-height:600px;padding:22px 24px 28px;border-top:1px solid var(--line)}
.mobile-link{display:block;padding:12px 6px;font-weight:600;color:var(--ink);border-radius:6px;transition:background .2s}
.mobile-link:hover{background:var(--soft);color:var(--green)}
.mobile-link.active{color:var(--green)}
.mobile-cta{margin-top:16px;justify-content:center}

/* hero ===== */
.cat-hero{position:relative;min-height:420px;display:flex;align-items:center;padding:88px 0;background-image:linear-gradient(100deg,rgba(12,47,38,.94) 0%,rgba(12,47,38,.72) 75%,rgba(10,79,56,.58) 100%),url("/assets/images/backpic/back-2.webp");background-size:cover;background-position:center;color:#fff}
.breadcrumb{display:flex;flex-wrap:wrap;gap:10px;align-items:center;font-size:13px;color:rgba(255,255,255,.76);margin-bottom:28px}
.breadcrumb a{color:rgba(255,255,255,.88);transition:color .2s}
.breadcrumb a:hover{color:var(--gold)}
.cat-hero-title{max-width:760px}
.cat-hero-title .hero-accent{color:#E3C071}
.cat-hero-title{font-size:clamp(2.2rem,5vw,3.6rem);line-height:1.15;font-weight:900;letter-spacing:-1px}
.cat-hero-lead{max-width:680px;margin-top:24px;font-size:17px;line-height:1.9;color:rgba(255,255,255,.86)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}

/* notice ===== */
.notice-section{padding:44px 0 0}
.notice-banner{display:flex;gap:16px;flex-wrap:wrap;background:var(--amber-bg);border-left:4px solid var(--gold);padding:20px 24px;border-radius:8px;color:var(--deep)}
.notice-icon{flex:0 0 26px;width:26px;height:26px;border-radius:50%;background:var(--gold);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:15px;margin-top:4px}
.notice-text{font-size:15px;line-height:1.85}
.notice-text strong{color:var(--gold-deep)}

/* section ===== */
.section-pad{padding:92px 0}
.section-head{margin-bottom:44px}
.eyebrow{display:inline-flex;align-items:center;color:var(--gold);font-weight:700;letter-spacing:.06em;font-size:13px;margin-bottom:12px}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--gold);margin-right:10px;border-radius:2px}
.section-h2{font-size:clamp(1.65rem,3vw,2.4rem);line-height:1.25;font-weight:800;color:var(--deep);letter-spacing:-.5px}
.section-desc{max-width:720px;margin-top:18px;color:var(--muted);font-size:16px;line-height:1.9}

/* faq layout ===== */
.faq-layout{display:grid;grid-template-columns:320px minmax(0,1fr);gap:56px;align-items:start}
.faq-toc{position:sticky;top:calc(var(--header-height) + 24px)}
.toc-card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:26px 24px}
.toc-title{font-size:17px;font-weight:800;color:var(--deep);margin-bottom:16px}
.toc-list{list-style:none;display:flex;flex-direction:column;gap:2px}
.toc-list a{display:block;padding:9px 12px;border-radius:6px;font-size:14px;color:var(--muted);font-weight:500;line-height:1.5;transition:all .2s}
.toc-list a:hover,.toc-list a:focus{background:var(--soft);color:var(--green);padding-left:16px}
.toc-img-wrap{position:relative;margin-top:20px;border-radius:8px;overflow:hidden}
.toc-img-wrap img{height:150px;object-fit:cover;width:100%}
.toc-img-caption{font-size:12px;color:var(--muted);background:var(--soft);padding:8px 12px;line-height:1.6}
.faq-list-head{margin-bottom:22px}
.faq-list-head .section-h2{font-size:clamp(1.5rem,2.5vw,2.1rem)}
.faq-list-head p{color:var(--muted);font-size:15px;margin-top:14px}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:8px;margin-bottom:14px;transition:box-shadow .25s ease,border-color .3s ease}
.faq-item.open{border-color:rgba(14,107,75,.35);box-shadow:0 8px 24px rgba(14,107,75,.05)}
.faq-question{display:flex;width:100%;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;text-align:left;color:var(--deep);font-size:16px;font-weight:700;line-height:1.6;border-radius:8px}
.faq-item.open .faq-question{color:var(--green)}
.faq-icon-wrap{flex:0 0 30px;width:30px;height:30px;border-radius:50%;border:1px solid #CBD8CF;display:flex;align-items:center;justify-content:center;position:relative;color:var(--green);transition:transform .35s ease,border-color .3s ease}
.faq-icon-wrap::before{content:"";width:12px;height:2px;background:currentColor;border-radius:2px;position:absolute}
.faq-icon-wrap::after{content:"";width:2px;height:12px;background:currentColor;border-radius:2px;position:absolute}
.faq-item.open .faq-icon-wrap{transform:rotate(45deg);border-color:var(--green);background:var(--soft)}
.faq-answer-wrap{display:grid;grid-template-rows:0fr;transition:grid-template-rows .4s ease}
.faq-item.open .faq-answer-wrap{grid-template-rows:1fr}
.faq-answer{min-height:0;overflow:hidden}
.faq-answer-inner{padding:0 24px 22px;border-top:1px dashed var(--line);margin-top:2px}
.faq-answer-inner p{font-size:15px;line-height:1.9;color:var(--muted);padding-top:18px}
.faq-more-tip{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:18px 22px;margin-top:26px;color:var(--muted);font-size:14px;line-height:1.8}
.faq-more-tip span{color:var(--gold-deep);font-weight:800}

/* security ===== */
.security-section{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.security-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(300px,.9fr);gap:64px;align-items:center}
.check-list{list-style:none;margin-top:28px;display:flex;flex-direction:column;gap:22px}
.check-item{display:flex;gap:18px}
.check-num{flex:0 0 42px;width:42px;height:42px;border-radius:50%;background:var(--soft);color:var(--green);font-weight:800;display:flex;align-items:center;justify-content:center;font-size:16px;line-height:1}
.check-title{font-size:16px;font-weight:800;color:var(--deep)}
.check-desc{font-size:15px;color:var(--muted);line-height:1.8;margin-top:4px}
.security-visual{border-radius:10px;overflow:hidden;border:1px solid var(--line);background:var(--bg)}
.security-visual img{width:100%;height:auto;object-fit:cover}
.visual-note{padding:16px 20px;font-size:14px;color:var(--muted);background:#FFFDFA;line-height:1.8}

/* cta ===== */
.final-cta{padding:88px 0}
.cta-panel{position:relative;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;background-color:var(--deep);background-image:linear-gradient(120deg,rgba(12,47,38,.97),rgba(14,107,75,.9)),url("/assets/images/backpic/back-1.webp");background-size:cover;background-position:center;padding:54px 56px;border-radius:12px;color:#fff;overflow:hidden}
.cta-panel::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--gold)}
.cta-title{font-size:clamp(1.5rem,2.6vw,2rem);font-weight:800;line-height:1.35}
.cta-text{margin-top:14px;font-size:15px;color:rgba(255,255,255,.84);max-width:560px;line-height:1.9}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-meta{width:100%;display:flex;flex-wrap:wrap;gap:22px;margin-top:24px;font-size:13px;color:rgba(255,255,255,.62)}
.cta-meta span{position:relative;padding-left:18px}
.cta-meta span::before{content:"";width:6px;height:6px;background:var(--gold);border-radius:50%;position:absolute;left:0;top:50%;transform:translateY(-50%)}

/* footer ===== */
.site-footer{background:var(--deep);color:rgba(255,255,255,.76);padding-top:70px}
.footer-top{display:grid;grid-template-columns:1.2fr .8fr 1fr;gap:48px;padding-bottom:46px}
.footer-brand .brand-logo{justify-content:flex-start}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-tag{color:#fff;background:rgba(255,255,255,.08)}
.footer-desc{margin-top:20px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.7);max-width:380px}
.footer-tip{margin-top:14px;font-size:12px;line-height:1.8;color:rgba(255,255,255,.5);background:rgba(255,255,255,.04);padding:12px 14px;border-radius:6px}
.footer-title{font-size:16px;color:#fff;font-weight:700;margin-bottom:18px}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.7);transition:color .2s}
.footer-links a:hover{color:#fff}
.footer-links li{font-size:14px;color:rgba(255,255,255,.62);line-height:1.7}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.5)}
.footer-bottom p{font-size:13px}

@media(min-width:1024px){
  .mobile-nav{display:none!important}
}
@media(max-width:1023px){
  .header-nav{display:none}
  .nav-toggle{display:flex}
  .mobile-nav{display:grid}
  .header-grid{grid-template-columns:1fr auto 1fr}
  .footer-top{grid-template-columns:1fr 1fr;gap:36px}
  .cta-panel{padding:42px 34px}
}
@media(max-width:900px){
  .security-grid,.faq-layout{grid-template-columns:1fr}
  .faq-toc{position:static}
  .section-pad,.security-section,.final-cta{padding:60px 0}
  .footer-top{grid-template-columns:1fr}
  .section-h2{letter-spacing:-.2px}
}
@media(max-width:640px){
  .footer-top{gap:30px}
  .footer-bottom p{font-size:12px}
  .hero-actions .btn{width:100%}
  .cta-actions .btn{width:100%;justify-content:center}
  .cat-hero{padding:64px 0;min-height:auto}
  .header-grid{grid-template-columns:1fr auto 1fr;gap:8px}
  .brand-logo{gap:5px}
  .brand-name{font-size:19px}
  .brand-tag{font-size:13px;padding:3px 8px}
  .check-desc{font-size:14px}
  .faq-question{padding:18px 16px}
  .faq-answer-inner{padding:0 16px 18px}
  .faq-answer-inner p{font-size:14px}
  .faq-answer-wrap{margin:0 2px}
}