/* roulang page: index */
:root {
  --primary: #1A6B78;
  --primary-dark: #0D4A54;
  --primary-light: #E5F0F2;
  --accent: #E2A13C;
  --bg: #F7F9FA;
  --card-bg: #FFFFFF;
  --border: #E3ECEE;
  --text: #18282E;
  --text-secondary: #5A747C;
  --text-muted: #8AA0A6;
  --success: #2F8D72;
  --error: #C6533A;
  --footer-bg: #0C343D;
  --footer-text: #B9CDD2;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 14px;
  --radius-pill: 999px;
  --shadow-card: 0 16px 40px rgba(13, 74, 84, .08), 0 2px 10px rgba(13, 74, 84, .04);
  --shadow-hover: 0 20px 44px rgba(13, 74, 84, .12);
  --section-pad: 88px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

main {
  display: block;
}

h1,
h2,
h3,
h4,
p,
ul,
ol,
figure,
blockquote {
  margin: 0;
}

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

img {
  height: auto;
}

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

ul,
ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: 0;
  background: transparent;
}

.main-wrap {
  overflow: hidden;
}

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

.section {
  padding-top: var(--section-pad);
  padding-bottom: var(--section-pad);
}

.section-alt {
  background: #fff;
}

.section-head {
  margin-bottom: 44px;
}

.section-head .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .875rem;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--primary);
  text-transform: uppercase;
}

.section-head .eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.section-head .eyebrow::after {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
}

.section-head h2 {
  margin-top: 12px;
  font-size: clamp(28px, 3.2vw, 40px);
  line-height: 1.3;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -.02em;
}

.section-head .section-desc {
  margin-top: 14px;
  max-width: 780px;
  color: var(--text-secondary);
  font-size: 1.05rem;
}

.section-head.has-center {
  text-align: center;
}

.section-head.has-center .section-desc {
  margin-left: auto;
  margin-right: auto;
}

@media (max-width: 900px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .section {
    --section-pad: 64px;
  }
}

@media (max-width: 600px) {
  .section {
    --section-pad: 48px;
  }

  .section-head {
    margin-bottom: 32px;
  }

  .section-head .section-desc {
    font-size: 1rem;
  }
}

/* ===== Header/Nav ===== */
.site-header {
  position: sticky;
  top: 12px;
  z-index: 60;
  padding: 6px 0;
}

.nav-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(255, 255, 255, .96);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 10px 16px;
  box-shadow: 0 10px 30px rgba(13, 74, 84, .06);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.22rem;
  font-weight: 700;
  color: var(--primary-dark);
  white-space: nowrap;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
}

.nav-links {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-left: 12px;
}

.nav-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: .95rem;
  border: 1px solid transparent;
  transition: background .2s ease, color .2s ease, box-shadow .2s ease;
}

.nav-link i {
  font-size: .9rem;
  opacity: .8;
}

.nav-link:hover {
  background: rgba(26, 107, 120, .09);
  color: var(--primary-dark);
}

.nav-link.is-active {
  color: var(--primary-dark);
  background: rgba(26, 107, 120, .11);
  box-shadow: inset 0 0 0 1px rgba(26, 107, 120, .16);
}

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  position: relative;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: var(--primary-light);
  transition: background .2s ease;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--primary-dark);
  border-radius: 4px;
}

.menu-toggle:hover {
  background: #dbecee;
}

@media (max-width: 900px) {
  .site-header {
    top: 8px;
  }

  .nav-card {
    padding: 8px 12px;
  }

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

  .nav-links {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: calc(100% + 8px);
    margin-left: 0;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: var(--shadow-card);
    padding: 14px;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-group {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }

  .nav-link {
    justify-content: flex-start;
    width: 100%;
    padding: 10px 16px;
  }

  .nav-cta {
    width: 100%;
    margin-top: 6px;
  }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 24px;
  border-radius: 10px;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: .98rem;
  line-height: 1;
  white-space: nowrap;
  transition: background .2s ease, color .2s ease, transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}

.btn:focus-visible,
.nav-link:focus-visible,
.menu-toggle:focus-visible,
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 10px 22px rgba(26, 107, 120, .18);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 14px 28px rgba(26, 107, 120, .22);
}

.btn-outline {
  background: rgba(255, 255, 255, .75);
  border-color: rgba(26, 107, 120, .3);
  color: var(--primary-dark);
}

.btn-outline:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  transform: translateY(-1px);
}

.btn-light {
  background: #fff;
  color: var(--primary-dark);
  box-shadow: 0 10px 24px rgba(4, 28, 32, .18);
}

.btn-light:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 30px rgba(4, 28, 32, .22);
  background: #F3F8F9;
}

.btn-lg {
  height: 54px;
  padding: 0 32px;
  font-size: 1.06rem;
}

.btn .btn-icon {
  font-size: .9rem;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 54px 0 78px;
  background-image: linear-gradient(105deg, rgba(247, 249, 250, .98) 0%, rgba(247, 249, 250, .91) 38%, rgba(13, 74, 84, .26) 100%), url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: right center;
}

.hero-inner {
  position: relative;
  z-index: 2;
}

.hero-copy .hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, .88);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  color: var(--primary-dark);
  font-size: .9rem;
  font-weight: 600;
  box-shadow: 0 6px 18px rgba(13, 74, 84, .05);
}

.hero-copy .hero-kicker .pulse {
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
  animation: pulse 2.2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .4; }
}

.hero-copy h1 {
  margin-top: 22px;
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1.25;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -.025em;
}

.hero-copy .lead {
  margin-top: 20px;
  max-width: 650px;
  color: var(--text-secondary);
  font-size: 1.18rem;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 30px;
}

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

.hero-tag-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, .72);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  border-radius: var(--radius-pill);
  padding: 6px 13px;
  font-size: .85rem;
}

.hero-tag-item i {
  color: var(--primary);
  font-size: .8rem;
}

.hero-panel {
  background: rgba(255, 255, 255, .92);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow-card);
  padding: 28px;
  backdrop-filter: blur(6px);
}

.hero-panel h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text);
}

.hero-panel > p {
  color: var(--text-muted);
  font-size: .9rem;
  margin-bottom: 18px;
}

.info-line {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 0;
  border-top: 1px solid var(--border);
}

.info-line:first-of-type {
  border-top: 0;
}

.info-icon {
  width: 36px;
  height: 36px;
  flex: 0 0 36px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: .95rem;
}

.info-content {
  flex: 1;
}

.info-title {
  font-size: .98rem;
  font-weight: 600;
  color: var(--text);
}

.info-desc {
  color: var(--text-secondary);
  font-size: .86rem;
  line-height: 1.5;
}

@media (max-width: 900px) {
  .hero {
    padding: 40px 0 60px;
  }
}

@media (max-width: 600px) {
  .hero-actions .btn {
    width: 100%;
  }

  .hero-tag-item {
    font-size: .82rem;
  }

  .hero-panel {
    padding: 20px;
  }
}

/* ===== Quick Entry Cards ===== */
.quick-section {
  padding-top: 46px;
  padding-bottom: var(--section-pad);
}

.quick-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.entry-card {
  display: block;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 22px;
  box-shadow: 0 6px 20px rgba(13, 74, 84, .045);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease, background .22s ease;
}

.entry-card .entry-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 1.05rem;
  margin-bottom: 16px;
}

.entry-card h3 {
  font-size: 1.04rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}

.entry-card p {
  color: var(--text-muted);
  font-size: .88rem;
  margin-bottom: 14px;
}

.entry-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-size: .86rem;
  font-weight: 600;
}

.entry-link i {
  transition: transform .2s ease;
}

.entry-card:hover {
  border-color: #B7D3D8;
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.entry-card:hover .entry-icon {
  background: var(--primary);
  color: #fff;
}

@media (max-width: 1024px) {
  .quick-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 520px) {
  .quick-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .entry-card {
    padding: 20px;
  }
}

/* ===== Feature split ===== */
.feature-section {
  background: #fff;
}

.feature-img-wrap {
  position: relative;
  min-height: 330px;
}

.feature-main-img {
  border-radius: 18px;
  box-shadow: var(--shadow-card);
  width: 86%;
  margin-left: auto;
}

.feature-sub-img {
  position: absolute;
  width: 48%;
  left: 0;
  bottom: -12px;
  border: 6px solid #fff;
  border-radius: 16px;
  box-shadow: var(--shadow-card);
}

.feature-float-chip {
  position: absolute;
  top: 34px;
  right: 6px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  padding: 9px 14px;
  border-radius: var(--radius-pill);
  font-size: .82rem;
  font-weight: 600;
  box-shadow: 0 14px 30px rgba(226, 161, 60, .28);
}

.feature-content h2 {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 18px;
}

.feature-content .feature-brief {
  color: var(--text-secondary);
  font-size: 1.03rem;
  line-height: 1.85;
  margin-bottom: 24px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 0;
  color: var(--text);
  font-size: .98rem;
  border-bottom: 1px dashed #e5edee;
}

.feature-list li:last-child {
  border-bottom: 0;
}

.feature-list i {
  margin-top: 4px;
  color: var(--primary);
}

.feature-list strong {
  font-weight: 600;
  margin-right: 8px;
  color: var(--primary-dark);
}

@media (max-width: 900px) {
  .feature-img-wrap {
    min-height: auto;
    margin-top: 36px;
  }
}

/* ===== Stair Tier ===== */
.tier-section {
  background: var(--bg);
}

.tier-stage {
  margin-top: 28px;
}

.tier-row {
  max-width: 78%;
  margin-bottom: 28px;
}

.tier-row.tier-right {
  margin-left: auto;
  max-width: 88%;
}

.tier-row.tier-bottom {
  max-width: 94%;
  margin-right: auto;
}

.tier-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow-card);
  padding: 28px 28px 24px;
  display: flex;
  align-items: flex-start;
  gap: 20px;
  transition: transform .22s ease, box-shadow .22s ease;
}

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

.tier-num {
  flex: 0 0 auto;
  font-size: 2.7rem;
  line-height: 1;
  font-weight: 700;
  color: #E4F0F1;
  letter-spacing: -.04em;
}

.tier-content {
  flex: 1;
}

.tier-head {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.tier-head h3 {
  font-size: 1.32rem;
  font-weight: 700;
  color: var(--text);
}

.tier-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(226, 161, 60, .16);
  color: #936010;
  font-size: .78rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
}

.tier-desc {
  color: var(--text-secondary);
  margin: 8px 0 16px;
  max-width: 680px;
}

.tier-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-bottom: 8px;
}

.tier-points span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: .9rem;
  color: var(--text-secondary);
}

.tier-points i {
  color: var(--primary);
  font-size: .8rem;
}

.tier-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-weight: 600;
  font-size: .88rem;
  margin-top: 8px;
}

@media (max-width: 900px) {
  .tier-row,
  .tier-row.tier-right,
  .tier-row.tier-bottom {
    max-width: 100%;
    margin-left: 0;
    margin-right: 0;
  }
}

@media (max-width: 600px) {
  .tier-card {
    flex-direction: column;
    gap: 10px;
    padding: 22px 18px;
  }

  .tier-num {
    font-size: 2rem;
  }
}

/* ===== Compare ===== */
.compare-section {
  background: #fff;
}

.compare-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  align-items: stretch;
  margin-top: 12px;
}

.compare-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: 0 8px 24px rgba(13, 74, 84, .05);
  padding: 32px 26px 30px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: box-shadow .22s ease, transform .22s ease;
}

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

.compare-card.is-recommend {
  border: 2px solid var(--primary);
  box-shadow: 0 20px 46px rgba(13, 74, 84, .12);
}

.compare-card.is-recommend::before {
  content: "推荐关注";
  position: absolute;
  top: -13px;
  left: 28px;
  background: var(--accent);
  color: #fff;
  font-size: .78rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  box-shadow: 0 8px 18px rgba(226, 161, 60, .3);
}

.compare-head {
  margin-bottom: 12px;
}

.compare-head h3 {
  font-size: 1.28rem;
  font-weight: 700;
  color: var(--text);
}

.compare-head p {
  font-size: .86rem;
  color: var(--text-secondary);
  margin-top: 8px;
  min-height: 44px;
  line-height: 1.6;
}

.compare-price {
  font-size: 1.72rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin: 10px 0 18px;
}

.compare-price span {
  display: block;
  font-size: .8rem;
  color: var(--text-muted);
  font-weight: 400;
  letter-spacing: 0;
}

.compare-list {
  border-top: 1px solid #edf1f2;
  padding-top: 10px;
  margin-bottom: 26px;
  flex: 1;
}

.compare-list li {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  padding: 10px 0;
  color: var(--text-secondary);
  font-size: .94rem;
  line-height: 1.5;
}

.compare-list li i {
  color: var(--primary);
  margin-top: 4px;
  font-size: .82rem;
}

.compare-list li.unavailable i {
  color: #c5d3d6;
}

.compare-list li small {
  display: block;
  color: var(--text-muted);
  font-size: .8rem;
  margin-top: 3px;
}

.compare-card .btn {
  width: 100%;
}

@media (max-width: 900px) {
  .compare-grid {
    grid-template-columns: 1fr;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
  }
}

/* ===== Band CTA ===== */
.band-section {
  padding-top: var(--section-pad);
  padding-bottom: var(--section-pad);
}

.focus-band {
  position: relative;
  overflow: hidden;
  background: var(--primary-dark);
  color: #fff;
  border-radius: 22px;
  padding: 38px 42px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  box-shadow: 0 20px 50px rgba(13, 74, 84, .2);
}

.focus-band::before {
  content: "";
  position: absolute;
  right: -40px;
  top: -80px;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(226, 161, 60, .32) 0%, transparent 70%);
  border-radius: 50%;
}

.focus-band .focus-copy {
  position: relative;
  z-index: 2;
}

.focus-band h2 {
  font-size: clamp(24px, 2.8vw, 34px);
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 10px;
}

.focus-band p {
  color: var(--footer-text);
  max-width: 680px;
  font-size: 1rem;
  line-height: 1.8;
}

.focus-band .focus-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  background: rgba(255, 255, 255, .12);
  padding: 6px 14px;
  border-radius: 999px;
  color: #E5F2F3;
  font-size: .84rem;
}

.focus-band .focus-status i {
  color: #F5C67F;
}

.focus-band .band-action {
  position: relative;
  z-index: 2;
  flex: 0 0 auto;
}

@media (max-width: 900px) {
  .focus-band {
    flex-direction: column;
    align-items: flex-start;
    padding: 30px 26px;
  }
}

/* ===== News List ===== */
.news-section {
  background: var(--bg);
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.news-item {
  display: flex;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: 0 6px 18px rgba(13, 74, 84, .04);
  overflow: hidden;
  transition: border-color .2s ease, box-shadow .2s ease;
}

.news-item:hover {
  border-color: #B2D2D7;
  box-shadow: var(--shadow-hover);
}

.news-media {
  flex: 0 0 260px;
  max-width: 260px;
  min-height: 160px;
  background: var(--primary-light);
  overflow: hidden;
}

.news-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .3s ease;
}

.news-item:hover .news-media img {
  transform: scale(1.03);
}

.news-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 22px 24px;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.tag {
  display: inline-flex;
  align-items: center;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: .76rem;
  font-weight: 600;
  padding: 4px 11px;
  border-radius: 999px;
}

.tag-time {
  color: var(--text-muted);
  font-size: .84rem;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.news-body h3 {
  font-size: 1.24rem;
  line-height: 1.5;
  font-weight: 700;
  color: var(--text);
}

.news-body h3 a:hover {
  color: var(--primary);
}

.news-abstract {
  margin-top: 8px;
  color: var(--text-secondary);
  line-height: 1.75;
  font-size: .94rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-foot {
  margin-top: auto;
  padding-top: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-muted);
}

.news-link-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-weight: 600;
  font-size: .9rem;
}

.news-empty {
  border: 2px dashed #c8dcdf;
  border-radius: 16px;
  background: rgba(255, 255, 255, .5);
  text-align: center;
  padding: 56px 20px;
  color: var(--text-secondary);
}

.news-empty i {
  font-size: 2.4rem;
  color: #b6c9cd;
  margin-bottom: 12px;
}

@media (max-width: 900px) {
  .news-item {
    flex-direction: column;
  }

  .news-media {
    flex-basis: auto;
    max-width: none;
    width: 100%;
    height: 190px;
  }
}

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

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

.faq-accordion.accordion {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow-card);
  padding: 4px 22px;
}

.faq-accordion .accordion-item {
  border-bottom: 1px solid #EDF3F4;
}

.faq-accordion .accordion-item:last-child {
  border-bottom: 0;
}

.faq-accordion .accordion-title {
  font-size: 1rem;
  color: var(--text);
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 21px 4px;
  line-height: 1.5;
}

.faq-accordion .accordion-title .faq-q {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.faq-accordion .accordion-title .faq-q i {
  color: var(--primary);
}

.faq-accordion .accordion-toggle-icon {
  width: 26px;
  height: 26px;
  flex: 0 0 26px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: .8rem;
}

.faq-accordion .accordion-title:hover .accordion-toggle-icon {
  background: var(--primary);
  color: #fff;
}

.faq-accordion .accordion-content {
  border-top: 0;
  background: transparent;
  padding: 0 4px 22px;
  color: var(--text-secondary);
  line-height: 1.85;
}

.faq-accordion .accordion-content p + p {
  margin-top: 10px;
}

.faq-accordion .accordion-content:empty {
  display: none;
}

.faq-accordion .accordion-item.is-active .accordion-title {
  color: var(--primary-dark);
}

.faq-note {
  max-width: 860px;
  margin: 18px auto 0;
  text-align: center;
  color: var(--text-muted);
  font-size: .88rem;
}

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

.contact-wrap {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 22px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.contact-info-panel {
  background: var(--primary-dark);
  color: #fff;
  height: 100%;
  padding: 40px 36px;
}

.contact-info-panel h3 {
  font-size: 1.7rem;
  font-weight: 700;
  line-height: 1.4;
}

.contact-info-panel .contact-desc {
  color: var(--footer-text);
  margin-top: 18px;
  line-height: 1.9;
}

.contact-detail-list {
  margin-top: 26px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-detail-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: #E5F2F3;
}

.contact-detail-item .detail-icon {
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  background: rgba(255, 255, 255, .1);
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #F5C67F;
  font-size: .95rem;
}

.contact-detail-item strong {
  display: block;
  color: #fff;
  font-size: .98rem;
}

.contact-detail-item span {
  font-size: .88rem;
  color: var(--footer-text);
  line-height: 1.7;
}

.contact-form-panel {
  padding: 40px 38px;
}

.contact-form-panel h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.contact-form-panel .contact-subtitle {
  color: var(--text-secondary);
  font-size: .96rem;
  margin-bottom: 26px;
}

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

.form-field label {
  display: block;
  font-weight: 600;
  font-size: .9rem;
  color: var(--text);
  margin-bottom: 7px;
}

.form-field input,
.form-field select,
.form-field textarea {
  display: block;
  width: 100%;
  background: #FCFDFD;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 11px 14px;
  color: var(--text);
  font-size: .95rem;
  transition: border-color .2s ease, box-shadow .2s ease;
}

.form-field textarea {
  min-height: 108px;
  resize: vertical;
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: #b1c2c6;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26, 107, 120, .14);
}

.form-field.full {
  grid-column: 1 / -1;
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 22px;
}

#formResult {
  font-size: .9rem;
  font-weight: 500;
}

.form-success {
  color: var(--success);
}

.form-error {
  color: var(--error);
}

@media (max-width: 900px) {
  .contact-info-panel,
  .contact-form-panel {
    padding: 28px 24px;
  }

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

  .form-field.full {
    grid-column: auto;
  }
}

@media (max-width: 600px) {
  .contact-info-panel,
  .contact-form-panel {
    padding: 24px 18px;
  }

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

/* ===== Footer ===== */
.site-footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  padding: 62px 0 0;
}

.footer-top {
  padding-bottom: 40px;
}

.footer-brand h4 {
  color: #FFFFFF;
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.footer-brand p {
  color: var(--footer-text);
  line-height: 1.9;
  font-size: .93rem;
  max-width: 340px;
}

.footer-brand .footer-mark {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}

.footer-mark .mini-logo {
  width: 32px;
  height: 32px;
  background: var(--primary);
  color: #E9F4F5;
  border-radius: 9px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: .9rem;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 14px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.footer-col ul a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--footer-text);
  font-size: .9rem;
  transition: color .2s ease;
}

.footer-col ul a i {
  color: #7CAAB3;
  font-size: .75rem;
}

.footer-col ul a:hover {
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid rgba(185, 205, 210, .16);
  padding: 18px 0;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  color: #93ADB3;
  font-size: .84rem;
}

.site-icp {
  min-height: 1px;
}

@media (max-width: 700px) {
  .site-footer {
    padding-top: 46px;
  }

  .footer-brand p {
    max-width: none;
  }

  .footer-col {
    margin-bottom: 6px;
  }
}

/* ===== Foundation overrides ===== */
.grid-padding-x > .cell {
  padding-right: 12px;
  padding-left: 12px;
}

.grid-padding-x {
  margin-right: -12px;
  margin-left: -12px;
}

.row {
  max-width: none;
}

@media print {
  .site-header,
  .site-footer,
  .hero-actions,
  .focus-band,
  .contact-form-panel {
    display: none !important;
  }

  body {
    background: #fff;
  }
}

/* roulang page: category1 */
:root {
    --primary: #1A6B78;
    --primary-dark: #0D4A54;
    --accent: #E2A13C;
    --bg-page: #F7F9FA;
    --bg-card: #FFFFFF;
    --bg-soft: #EEF4F5;
    --border-light: #E3ECEE;
    --text-main: #18282E;
    --text-sub: #5A747C;
    --text-weak: #8AA0A6;
    --success: #2F8D72;
    --danger-light: #C6533A;
    --footer-bg: #0C343D;
    --footer-text: #B9CDD2;
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --shadow: 0 10px 30px rgba(13, 74, 84, 0.08);
    --shadow-lg: 0 16px 40px rgba(13, 74, 84, 0.1);
    --container-max: 1200px;
}

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

html {
    scroll-behavior: smooth;
}

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

body.no-scroll {
    overflow: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-md);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--primary-dark);
}

p {
    margin-top: 0;
    margin-bottom: 1rem;
}

h1, h2, h3, h4, h5, h6 {
    margin-top: 0;
    color: var(--text-main);
    font-weight: 600;
    line-height: 1.3;
}

h1 {
    font-size: 40px;
    letter-spacing: -0.01em;
}

h2 {
    font-size: 32px;
}

h3 {
    font-size: 22px;
}

h4 {
    font-size: 18px;
}

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

.site-header {
    position: sticky;
    top: 14px;
    z-index: 100;
    padding: 0 24px;
    animation: headerFade 0.4s ease both;
}

@keyframes headerFade {
    from {
        opacity: 0;
        transform: translateY(-12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.nav-card {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow);
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    gap: 16px;
    flex-wrap: wrap;
    min-height: 74px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 20px;
    color: var(--text-main);
    flex-shrink: 0;
}

.brand:hover {
    color: var(--text-main);
}

.brand-mark {
    width: 40px;
    height: 40px;
    background: var(--primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    color: #fff;
    font-size: 18px;
    box-shadow: 0 6px 16px rgba(26, 107, 120, 0.3);
    flex-shrink: 0;
}

.brand-text {
    white-space: nowrap;
}

.nav-links {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex: 1;
    gap: 12px;
    margin-left: 12px;
}

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

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 60px;
    font-size: 15px;
    color: var(--text-sub);
    background: transparent;
    transition: background 0.2s ease, color 0.2s ease;
    white-space: nowrap;
    border: 1px solid transparent;
}

.nav-link i {
    font-size: 13px;
    opacity: 0.7;
}

.nav-link:hover {
    background: var(--bg-soft);
    color: var(--primary-dark);
}

.nav-link.is-active {
    background: rgba(26, 107, 120, 0.12);
    color: var(--primary);
    font-weight: 600;
    border-color: rgba(26, 107, 120, 0.25);
}

.nav-cta {
    margin-left: auto;
    flex-shrink: 0;
    text-align: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    text-align: center;
    transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    text-decoration: none;
    line-height: 1.4;
    outline-offset: 2px;
}

.btn:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(13, 74, 84, 0.22);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: rgba(26, 107, 120, 0.08);
    color: var(--primary);
    border-color: rgba(26, 107, 120, 0.2);
}

.btn-secondary:hover {
    background: rgba(26, 107, 120, 0.16);
    color: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-light {
    background: #fff;
    color: var(--primary);
    border: 2px solid #fff;
}

.btn-light:hover {
    background: var(--bg-soft);
    color: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 10px 18px;
    font-size: 14px;
    border-radius: 8px;
}

.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    background: rgba(26, 107, 120, 0.1);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    cursor: pointer;
    flex-shrink: 0;
}

.menu-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--primary);
    transition: all 0.3s ease;
    border-radius: 2px;
}

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

.menu-toggle.is-active span:nth-child(2) {
    opacity: 0;
}

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

/* page-hero for interior */
.page-hero {
    padding: 56px 0 20px;
}

.page-hero-inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 32px;
    flex-wrap: wrap;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(26, 107, 120, 0.08);
    color: var(--primary);
    border-radius: 50px;
    padding: 6px 16px;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 20px;
}

.breadcrumb-nav {
    margin-top: 16px;
    margin-bottom: 20px;
    font-size: 14px;
    color: var(--text-weak);
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.breadcrumb-nav a {
    color: var(--text-sub);
}

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

.breadcrumb-nav .separator {
    opacity: 0.5;
    color: var(--text-weak);
}

/* intro info */
.intro-block {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow);
    padding: 40px 36px;
    margin: 36px 0 48px;
}

.intro-block h2 {
    margin-bottom: 16px;
}

.intro-block p {
    color: var(--text-sub);
    font-size: 16px;
}

/* split content */
.content-led {
    display: flex;
    gap: 40px;
    align-items: flex-start;
    flex-wrap: wrap;
}

.main-reading {
    flex: 0 0 auto;
    width: calc(100% - 360px - 40px);
    min-width: 0;
}

.sidebar-col {
    width: 360px;
    flex-shrink: 0;
    position: sticky;
    top: 110px;
}

.reading-section {
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: 40px;
    margin-bottom: 28px;
}

.reading-section:last-child {
    margin-bottom: 0;
}

.reading-section h2 {
    font-size: 26px;
    margin: 0 0 18px;
    position: relative;
    padding-left: 18px;
    line-height: 1.4;
}

.reading-section h2::before {
    content: "";
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: 4px;
    background: var(--primary);
    border-radius: 4px;
}

.reading-section p {
    color: var(--text-sub);
    line-height: 1.85;
    font-size: 15.5px;
}

.section-img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin: 22px 0 18px;
    border: 1px solid var(--border-light);
}

.img-caption {
    font-size: 14px;
    color: var(--text-weak);
    text-align: center;
    margin: 10px 0 20px;
    line-height: 1.5;
}

.sidebar-card {
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    margin-bottom: 24px;
    box-shadow: var(--shadow);
}

.sidebar-card h3 {
    font-size: 20px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-main);
}

.sidebar-card h3 i {
    color: var(--primary);
}

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

.sidebar-card li {
    padding: 10px 0;
    border-bottom: 1px dashed var(--border-light);
    font-size: 15px;
    color: var(--text-sub);
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.sidebar-card li i {
    color: var(--primary);
    margin-top: 5px;
    font-size: 13px;
}

.sidebar-card li:last-child {
    border-bottom: 0;
}

.sidebar-card .detail-note {
    margin-top: 18px;
}

/* facts strip */
.facts-strip {
    background: var(--primary-dark);
    border-radius: var(--radius-lg);
    margin: 50px 0;
    padding: 40px;
    color: #fff;
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-wrap: wrap;
    gap: 36px;
}

.fact-item {
    text-align: center;
    color: #fff;
}

.fact-number {
    font-size: 42px;
    font-weight: 700;
    line-height: 1.2;
    color: var(--accent);
}

.fact-label {
    margin-top: 8px;
    font-size: 15px;
    color: #DCE9EB;
}

/* Info nav cards to preview official access */
.link-card {
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: all 0.25s ease;
    display: block;
    text-decoration: none;
    color: var(--text-main);
    box-shadow: 0 4px 16px rgba(0,0,0,0.03);
    height: 100%;
}

.link-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    border-color: rgba(26, 107, 120, 0.4);
    text-decoration: none;
}

.link-card h3 {
    font-size: 18px;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.link-card h3 i {
    color: var(--primary);
    font-size: 18px;
}

.link-card p {
    color: var(--text-sub);
    font-size: 14px;
    line-height: 1.65;
    margin-bottom: 12px;
}

.link-tag {
    display: inline-block;
    background: rgba(226, 161, 60, 0.15);
    color: #945d12;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 50px;
}

/* Section blocks */
.block-section {
    margin-top: 48px;
}

/* CTA */
.mini-cta-section {
    margin-top: 60px;
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    padding: 44px 48px;
    flex-wrap: wrap;
    box-shadow: var(--shadow);
}

.mini-cta-section h2 {
    margin: 0 0 8px;
    font-size: 28px;
}

.mini-cta-section p {
    margin: 0;
    color: var(--text-sub);
    max-width: 440px;
}

.cta-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
}

/* FAQ */
.faq-wrap {
    max-width: 860px;
    margin: 56px 0 0 0;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    overflow: hidden;
    border-radius: var(--radius-md);
    margin-bottom: 18px;
    transition: border-color 0.2s;
}

.faq-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    padding: 24px 26px;
    font-weight: 600;
    gap: 16px;
    font-size: 17px;
    line-height: 1.5;
    margin: 0;
    user-select: none;
}

.faq-title:hover {
    background: rgba(26, 107, 120, 0.03);
}

.faq-icon {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(26, 107, 120, 0.1);
    border-radius: 50%;
    color: var(--primary);
    transition: transform 0.3s ease;
}

.faq-item.open .faq-icon {
    transform: rotate(45deg);
}

.faq-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease;
    opacity: 0;
}

.faq-item.open .faq-body {
    opacity: 1;
}

.faq-body-inner {
    padding: 0 26px 22px;
    color: var(--text-sub);
    font-size: 15px;
    line-height: 1.8;
    border-top: 1px dashed var(--border-light);
    padding-top: 18px;
    margin-top: 0;
}

/* CTA form */
.form-banner {
    background: var(--footer-bg);
    color: #fff;
    border-radius: var(--radius-lg);
    padding: 52px 48px;
    margin-top: 50px;
}

.form-banner h2 {
    color: #fff;
    font-size: 32px;
}

.form-banner p {
    color: #c8dbe0;
}

.form-card {
    background: #fff;
    border-radius: var(--radius-md);
    padding: 28px;
}

.section-title-center {
    text-align: center;
    margin: 0 auto 48px;
    max-width: 760px;
}

.more-title-center {
    text-align: center;
    margin: 56px 0 36px;
}

/* footer */
.site-footer {
    background: var(--footer-bg);
    color: var(--footer-text);
    padding: 56px 0 24px;
    margin-top: 90px;
}

.footer-brand {
    margin-bottom: 22px;
}

.footer-mark {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    margin-bottom: 10px;
}

.mini-logo {
    width: 36px;
    height: 36px;
    background: var(--primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    color: #fff;
    font-size: 16px;
    flex-shrink: 0;
}

.footer-brand h4 {
    font-size: 20px;
    margin: 0;
    color: #fff;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--footer-text);
    max-width: 360px;
    margin-top: 14px;
}

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

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

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

.footer-col a {
    color: var(--footer-text);
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color 0.2s ease, padding-left 0.2s ease;
}

.footer-col a i {
    font-size: 12px;
    color: #5f8893;
}

.footer-col a:hover {
    color: #fff;
    padding-left: 4px;
}

.footer-bottom {
    margin-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 22px;
    text-align: center;
    font-size: 13px;
    color: #7f9fa8;
}

.footer-bottom-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.footer-bottom-inner .site-icp {
    color: var(--footer-text);
}

/* reveal effects */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.visible {
    opacity: 1;
    transform: none;
}

/* small utilities */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 40px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 40px; }

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    padding: 4px 14px;
    border-radius: 50px;
    border: 1px solid rgba(47, 141, 114, 0.4);
    background: rgba(47, 141, 114, 0.08);
    color: var(--success);
    font-weight: 500;
}

.form-box {
    width: 100%;
}

.form-box label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: var(--text-main);
    font-size: 14px;
}

.form-box input[type="text"],
.form-box input[type="tel"],
.form-box textarea,
.form-box select {
    width: 100%;
    border: 1px solid #ccdadd;
    border-radius: 10px;
    background: #f9fbfc;
    padding: 12px 18px;
    font-size: 15px;
    font-family: inherit;
    color: var(--text-main);
    transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}

.form-box input:focus,
.form-box select:focus,
.form-box textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: #fff;
    box-shadow: 0 0 0 2px rgba(26, 107, 120, 0.2);
}

.btn-block {
    width: 100%;
}

@media (max-width: 1024px) {
    .main-reading {
        width: 100%;
        margin-bottom: 24px;
    }

    .sidebar-col {
        width: 100%;
        flex-shrink: 0;
        position: static;
        top: auto;
    }
}

@media (max-width: 900px) {
    .site-header {
        top: 10px;
        padding-left: 16px;
        padding-right: 16px;
    }

    .nav-card {
        padding: 12px 14px;
    }

    .menu-toggle {
        display: flex;
    }

    .nav-links {
        display: none;
        flex-basis: 100%;
        margin-left: 0;
        margin-top: 12px;
        flex-direction: column;
        align-items: stretch;
        border-top: 1px solid var(--border-light);
        padding-top: 14px;
    }

    .nav-links.is-open {
        display: flex;
    }

    .nav-group {
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
        width: 100%;
    }

    .nav-link {
        justify-content: flex-start;
        padding: 12px 16px;
        border-radius: 8px;
    }

    .nav-cta {
        margin-top: 14px;
        width: 100%;
        justify-content: center;
        text-align: center;
    }

    .nav-group .nav-link {
        border: 1px solid transparent;
    }

    .nav-link.is-active {
        background: rgba(26, 107, 120, 0.12);
        border-color: rgba(26, 107, 120, 0.25);
    }
}

@media (max-width: 600px) {
    .container {
        padding-left: 16px;
        padding-right: 16px;
    }

    .page-hero {
        padding: 36px 0 12px;
    }

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

    .nav-card {
        padding: 12px 12px;
    }

    .reading-section {
        padding: 28px 20px;
    }

    .reading-section h2 {
        font-size: 21px;
    }

    .intro-block {
        padding: 28px 22px;
        margin: 20px 0 32px;
    }

    .mini-cta-section {
        padding: 32px 24px;
    }

    .form-banner {
        padding: 36px 20px;
    }

    h1 {
        font-size: 32px;
    }

    h2 {
        font-size: 26px;
    }

    .facts-strip {
        padding: 32px 18px;
        flex-direction: column;
    }

    .sidebar-card {
        padding: 24px 20px;
    }

    .facts-strip {
        justify-content: center;
    }

    .page-hero-inner {
        align-items: flex-start;
    }
}

/* roulang page: article */
:root {
      --primary: #1A6B78;
      --primary-deep: #0D4A54;
      --primary-dark: #0B3D46;
      --accent: #E2A13C;
      --accent-soft: rgba(226, 161, 60, .16);
      --bg: #F7F9FA;
      --card: #FFFFFF;
      --text: #18282E;
      --muted: #5A747C;
      --weak: #8AA0A6;
      --line: #DFEBED;
      --line-deep: #C7DADF;
      --success: #2F8D72;
      --danger: #C6533A;
      --footer-bg: #0C343D;
      --footer-text: #B9CDD2;
      --radius-lg: 16px;
      --radius: 14px;
      --radius-sm: 9px;
      --radius-xs: 7px;
      --shadow: 0 16px 40px rgba(13, 74, 84, .1);
      --shadow-sm: 0 7px 22px rgba(13, 74, 84, .08);
      --shadow-accent: 0 18px 45px rgba(13, 74, 84, .15);
      --space-xl: 104px;
      --space-lg: 84px;
      --space-md: 56px;
      --space-sm: 40px;
    }

    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }

    body {
      font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      background: var(--bg);
      color: var(--text);
      font-size: 16px;
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

    img { max-width: 100%; height: auto; display: block; }
    ul, ol { list-style: none; }
    a { text-decoration: none; color: var(--primary); transition: color .2s ease; }
    a:hover { color: var(--primary-deep); }
    a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
      outline: 2px solid var(--primary);
      outline-offset: 3px;
    }
    button { font-family: inherit; }

    .skip-link {
      position: absolute;
      left: -999px;
      top: 10px;
      background: #fff;
      color: var(--primary-deep);
      padding: 10px 16px;
      border-radius: 8px;
      z-index: 99;
    }
    .skip-link:focus { left: 12px; }

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

    .site-header {
      position: sticky;
      top: 12px;
      z-index: 60;
      padding: 0;
    }
    .site-header .container { max-width: 1280px; }
    .nav-card {
      background: rgba(255, 255, 255, .92);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      border: 1px solid rgba(221, 235, 238, .95);
      border-radius: var(--radius-lg);
      box-shadow: 0 8px 30px rgba(13, 74, 84, .07);
      display: flex;
      align-items: center;
      gap: 18px;
      min-height: 68px;
      padding: 10px 16px 10px 20px;
      margin: 0 12px;
    }
    .brand { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; }
    .brand-mark {
      width: 40px;
      height: 40px;
      border-radius: 11px;
      background: linear-gradient(135deg, var(--primary), var(--primary-deep));
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      box-shadow: 0 6px 14px rgba(26, 107, 120, .24);
    }
    .brand-text {
      font-size: 19px;
      font-weight: 700;
      color: var(--text);
      letter-spacing: .02em;
      white-space: nowrap;
    }
    .nav-links { display: flex; align-items: center; justify-content: space-between; flex: 1 1 auto; min-width: 0; }
    .nav-group { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

    .nav-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 9px 16px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 500;
      border: 1px solid transparent;
      background: transparent;
      color: var(--muted);
      transition: all .2s ease;
      white-space: nowrap;
    }
    .nav-link i { color: var(--weak); font-size: 14px; transition: color .2s; }
    .nav-link:hover { background: rgba(26, 107, 120, .08); color: var(--primary-deep); border-color: rgba(26, 107, 120, .18); }
    .nav-link.is-active { background: rgba(26, 107, 120, .1); color: var(--primary-deep); font-weight: 600; border-color: rgba(26, 107, 120, .35); }
    .nav-link.is-active i { color: var(--primary); }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 0 22px;
      height: 47px;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 600;
      border: 1px solid transparent;
      cursor: pointer;
      text-align: center;
      transition: all .2s ease;
      background: transparent;
      line-height: 1;
    }
    .btn-primary { background: var(--primary); color: #fff; box-shadow: 0 8px 20px rgba(26,107,120,.2); }
    .btn-primary:hover { background: var(--primary-deep); color: #fff; transform: translateY(-1px); box-shadow: 0 12px 26px rgba(13,74,84,.24); }
    .btn-outline { background: transparent; color: var(--primary-deep); border-color: rgba(26,107,120,.35); }
    .btn-outline:hover { background: rgba(26,107,120,.06); border-color: var(--primary); color: var(--primary-deep); }
    .btn-ghost { background: rgba(26,107,120,.09); color: var(--primary-deep); }
    .btn-ghost:hover { background: rgba(26,107,120,.14); }
    .btn-sm { height: 40px; padding: 0 17px; font-size: 14px; }
    .btn-light { background: #fff; color: var(--primary-deep); }
    .btn-light:hover { background: #f2f8f9; color: var(--primary-deep); transform: translateY(-1px); }

    .menu-toggle {
      display: none;
      background: transparent;
      border: 1px solid var(--line-deep);
      width: 44px;
      height: 44px;
      border-radius: 12px;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 5px;
      cursor: pointer;
      transition: border-color .2s;
    }
    .menu-toggle span { display: block; width: 18px; height: 2px; background: var(--primary-deep); border-radius: 4px; transition: all .25s; }
    .menu-toggle:hover { border-color: var(--primary); }
    .menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
    .menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

    .page-hero {
      position: relative;
      color: #fff;
      padding: 78px 0 66px;
      margin: 12px 12px 0;
      border-radius: 22px;
      overflow: hidden;
      background: linear-gradient(115deg, rgba(9, 44, 53, .97) 22%, rgba(16, 93, 105, .9) 60%, rgba(226, 161, 60, .38)), url('/assets/images/backpic/back-2.webp') center/cover;
      box-shadow: var(--shadow);
    }
    .page-hero::after {
      content: "";
      position: absolute;
      inset: 0;
      background-image: radial-gradient(rgba(255,255,255,.15) 1px, transparent 1px);
      background-size: 22px 22px;
      opacity: .25;
      pointer-events: none;
    }
    .page-hero .container { position: relative; z-index: 2; }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 15px;
      border-radius: 999px;
      background: rgba(255,255,255,.12);
      border: 1px solid rgba(255,255,255,.24);
      color: #fff;
      font-size: 13px;
      margin-bottom: 18px;
    }
    .hero-badge i { color: var(--accent); }
    .page-title {
      font-size: clamp(32px, 5vw, 48px);
      line-height: 1.25;
      font-weight: 700;
      max-width: 860px;
      margin-bottom: 18px;
      color: #fff;
      letter-spacing: .01em;
    }
    .page-description {
      font-size: 16px;
      line-height: 1.85;
      color: rgba(255,255,255,.88);
      max-width: 780px;
    }
    .breadcrumb {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 9px;
      font-size: 13px;
      color: rgba(255,255,255,.65);
      margin-bottom: 20px;
    }
    .breadcrumb a { color: rgba(255,255,255,.8); display: inline-flex; align-items: center; gap: 7px; }
    .breadcrumb a:hover { color: var(--accent); }
    .breadcrumb .crumb { color: rgba(255,255,255,.45); }
    .breadcrumb-current { color: var(--accent); }

    .article-section { padding: var(--space-lg) 0 76px; }
    .article-layout { display: block; }

    .article-card,
    .widget-card {
      background: var(--card);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
    }

    .article-main-card { padding: 28px 32px 36px; position: relative; }
    .article-cover {
      border-radius: var(--radius);
      overflow: hidden;
      margin: 0 0 30px;
      background: #e8f0f2;
    }
    .article-cover img { width: 100%; height: 400px; object-fit: cover; }

    .article-meta-list {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 10px 18px;
      padding: 16px 0 8px;
      border-bottom: 1px solid var(--line);
      margin-bottom: 24px;
    }
    .meta-item { display: inline-flex; align-items: center; gap: 7px; font-size: 13px; color: var(--muted); }
    .meta-item i { color: var(--weak); }
    .tag-chip {
      background: var(--accent-soft);
      color: #8c5b18;
      padding: 4px 12px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 500;
    }
    .source-tag {
      background: rgba(26,107,120,.09);
      border: 1px solid rgba(26,107,120,.16);
      color: var(--primary);
      padding: 4px 12px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 500;
    }

    .article-summary {
      background: #F3F8F8;
      border-left: 3px solid var(--accent);
      padding: 18px 22px;
      border-radius: 4px 12px 12px 4px;
      margin-bottom: 28px;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.9;
    }

    .article-body {
      font-size: 16px;
      line-height: 1.95;
      color: var(--text);
      word-break: break-word;
    }
    .article-body p { margin-bottom: 1.2em; }
    .article-body h2 {
      font-size: 25px;
      font-weight: 700;
      color: var(--primary-deep);
      margin: 40px 0 16px;
      padding-left: 14px;
      border-left: 4px solid var(--primary);
      line-height: 1.45;
    }
    .article-body h3 {
      font-size: 19px;
      color: var(--primary-deep);
      font-weight: 600;
      margin: 28px 0 12px;
      line-height: 1.5;
    }
    .article-body blockquote {
      background: #F3F7F8;
      border-left: 4px solid var(--primary);
      padding: 16px 20px;
      border-radius: 4px 12px 12px 4px;
      margin: 22px 0;
      color: #33636b;
      font-style: normal;
    }
    .article-body ul,
    .article-body ol {
      padding-left: 18px;
      margin-bottom: 1.4em;
    }
    .article-body ul li { list-style: disc; margin-bottom: 8px; padding-left: 6px; }
    .article-body ol li { list-style: decimal; margin-bottom: 8px; padding-left: 6px; }
    .article-body img {
      border-radius: 13px;
      border: 1px solid var(--line);
      margin: 22px 0 8px;
      box-shadow: var(--shadow-sm);
    }
    .article-body figure { margin: 24px 0; }
    .article-body figcaption {
      font-size: 13px;
      color: var(--weak);
      text-align: center;
      padding: 4px 0 10px;
    }
    .article-body pre {
      background: #102f37;
      color: #e6f2f4;
      border-radius: 12px;
      padding: 18px;
      overflow-x: auto;
      font-size: 14px;
      line-height: 1.7;
      margin-bottom: 1.4em;
    }
    .article-body code {
      background: #eef3f4;
      padding: 3px 7px;
      border-radius: 5px;
      color: var(--primary-deep);
      font-size: 14px;
    }
    .article-body pre code { background: transparent; color: inherit; padding: 0; }
    .article-body table { width: 100%; margin: 24px 0; border-collapse: collapse; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
    .article-body table th,
    .article-body table td {
      border: 1px solid var(--line);
      padding: 12px 15px;
      text-align: left;
      vertical-align: top;
    }
    .article-body table th { background: #F0F6F7; color: var(--primary-deep); font-weight: 600; }

    .article-bottom-bar {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      padding-top: 28px;
      margin-top: 34px;
      border-top: 1px solid var(--line);
    }

    .empty-card {
      background: var(--card);
      border: 1px dashed var(--line-deep);
      border-radius: var(--radius-lg);
      padding: 60px 30px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      margin-bottom: 30px;
    }
    .empty-card i { font-size: 42px; color: var(--line-deep); margin-bottom: 14px; }
    .empty-card h2 { font-size: 20px; color: var(--muted); margin-bottom: 10px; }
    .empty-card p { font-size: 15px; color: var(--weak); margin-bottom: 18px; }

    .article-sidebar { display: flex; flex-direction: column; gap: 24px; }

    .widget-card { padding: 24px; }
    .widget-title {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 17px;
      color: var(--primary-deep);
      font-weight: 700;
      margin-bottom: 18px;
    }
    .widget-title i { color: var(--primary); font-size: 15px; }
    .title-line {
      width: 4px;
      height: 16px;
      background: var(--primary);
      border-radius: 3px;
      display: inline-block;
    }

    .toc-list { display: flex; flex-direction: column; gap: 5px; }
    .toc-list li { position: relative; }
    .toc-list a {
      display: flex;
      padding: 8px 10px 8px 12px;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.5;
      border-left: 2px solid transparent;
      transition: all .2s ease;
      border-radius: 2px 6px 6px 2px;
    }
    .toc-list a:hover { background: rgba(26,107,120,.06); color: var(--primary-deep); border-left-color: var(--primary); }
    .toc-empty { font-size: 13px; color: var(--weak); padding: 8px 0; }

    .side-link-list li { border-bottom: 1px dashed var(--line); }
    .side-link-list li:last-child { border-bottom: 0; }
    .side-link-list a { display: flex; align-items: center; gap: 10px; padding: 12px 4px; color: var(--muted); font-size: 14px; transition: all .2s; }
    .side-link-list a i { color: var(--weak); }
    .side-link-list a:hover { color: var(--primary); padding-left: 9px; }
    .side-link-list a:hover i { color: var(--primary); }

    .side-cta {
      background: linear-gradient(145deg, var(--primary-deep), var(--primary));
      color: #fff;
      border-radius: var(--radius-lg);
      padding: 26px 22px;
      box-shadow: 0 14px 34px rgba(13,74,84,.2);
    }
    .side-cta .cta-sub { color: rgba(255,255,255,.65); font-size: 13px; margin-bottom: 12px; }
    .side-cta h3 { color: #fff; font-size: 20px; margin-bottom: 14px; line-height: 1.5; }
    .side-cta p { color: rgba(255,255,255,.8); font-size: 14px; margin-bottom: 20px; }

    .article-info-box {
      background: #F6FAFA;
      border-radius: var(--radius);
      padding: 14px 16px;
      margin-bottom: 8px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .article-info-box .inf-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 13px;
      color: var(--muted);
    }
    .article-info-box .inf-item span:last-child { color: var(--text); max-width: 60%; text-align: right; }

    .compact-cta {
      background: var(--primary-dark);
      border-radius: var(--radius-lg);
      padding: 40px 42px;
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      flex-wrap: wrap;
      margin: 64px 0 0;
      position: relative;
      overflow: hidden;
    }
    .compact-cta::after {
      content: "";
      position: absolute;
      right: -30px;
      top: -30px;
      width: 180px;
      height: 180px;
      border: 1px solid rgba(226,161,60,.35);
      border-radius: 50%;
      box-shadow: inset 0 0 0 28px rgba(226,161,60,.06);
    }
    .compact-cta h2 { font-size: 24px; margin-bottom: 10px; font-weight: 700; }
    .compact-cta p { color: rgba(255,255,255,.75); font-size: 15px; }
    .compact-cta .btn { position: relative; z-index: 2; }

    .footer-top-line {
      height: 2px;
      background: var(--line);
      margin-bottom: 28px;
    }

    .site-footer {
      background: var(--footer-bg);
      color: var(--footer-text);
      padding: 60px 0 0;
      margin-top: 20px;
    }
    .site-footer a { color: rgba(185,205,210,.85); }
    .site-footer a:hover { color: #fff; }
    .footer-top { padding-bottom: 30px; }
    .footer-brand { max-width: 380px; }
    .footer-mark { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
    .footer-mark h4 { font-size: 20px; color: #fff; }
    .mini-logo {
      width: 38px;
      height: 38px;
      border-radius: 10px;
      background: linear-gradient(135deg, #3b9aa9, var(--primary));
      color: #fff;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 17px;
    }
    .footer-brand p { font-size: 14px; line-height: 1.9; color: #9dbdbf; }
    .footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 16px; font-weight: 600; }
    .footer-col ul li { margin-bottom: 10px; }
    .footer-col ul li a { display: inline-flex; align-items: center; gap: 7px; font-size: 14px; }
    .footer-col ul li a i { font-size: 11px; color: rgba(185,205,210,.5); }
    .footer-col ul li a:hover i { color: var(--accent); margin-left: 2px; transition: margin .2s; }
    .footer-bottom {
      border-top: 1px solid rgba(185,205,210,.14);
      padding: 20px 0;
      font-size: 13px;
      color: rgba(185,205,210,.55);
    }
    .footer-bottom-inner {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
    }
    .site-icp::before { content: ""; }

    @media screen and (max-width: 900px) {
      .nav-card { flex-wrap: wrap; padding: 12px; margin: 0 8px; }
      .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        padding: 14px 0 8px;
        gap: 12px;
        align-items: stretch;
      }
      .nav-links.open { display: flex; }
      .nav-group { flex-direction: column; align-items: stretch; width: 100%; }
      .nav-link { justify-content: flex-start; width: 100%; }
      .nav-cta { width: 100%; justify-content: center; margin-top: 6px; }
      .menu-toggle { display: flex; margin-left: auto; }
      .page-hero { padding: 50px 0 42px; border-radius: 18px; margin: 8px 8px 0; }
      .article-section { padding: 48px 0 50px; }
      .article-main-card { padding: 20px 18px 30px; }
      .article-cover img { height: auto; max-height: 320px; width: 100%; }
      .article-layout .cell { margin-bottom: 24px; }
      .article-sidebar { display: grid; grid-template-columns: 1fr; gap: 20px; }
      .compact-cta { padding: 30px 24px; margin-top: 44px; }
    }

    @media screen and (max-width: 600px) {
      body { font-size: 15px; }
      .container { padding: 0 16px; }
      .brand-text { font-size: 17px; }
      .brand-mark { width: 36px; height: 36px; font-size: 15px; }
      .page-title { font-size: 30px; line-height: 1.3; }
      .page-description { font-size: 15px; }
      .page-hero { padding: 40px 0 34px; }
      .article-summary { padding: 14px 15px; font-size: 14px; }
      .article-body { font-size: 15px; }
      .article-body h2 { font-size: 21px; }
      .article-meta-list { gap: 9px 13px; }
      .widget-card { padding: 18px; }
      .compact-cta { flex-direction: column; align-items: flex-start; }
      .sidebar-at-600 { grid-template-columns: 1fr; }
      .footer-top .cell { margin-bottom: 18px; }
      .footer-bottom-inner { flex-direction: column; text-align: center; align-items: center; }
    }

    @media print {
      .site-header, .site-footer, .article-sidebar, .compact-cta, .article-bottom-bar { display: none; }
      body { background: #fff; }
      .page-hero { background: #fff !important; color: var(--text); padding: 20px 0; box-shadow: none; }
      .page-title { color: var(--text); }
    }

/* roulang page: category2 */
:root {
            --primary: #1A6B78;
            --primary-dark: #0D4A54;
            --primary-soft: #E7F0F2;
            --accent: #E2A13C;
            --accent-light: #FFF3DF;
            --bg: #F7F9FA;
            --card: #FFFFFF;
            --border: #E3ECEE;
            --border-dark: #C9DCDE;
            --text: #18282E;
            --muted: #5A747C;
            --weak: #8AA0A6;
            --success: #2F8D72;
            --danger: #C6533A;
            --footer-bg: #0C343D;
            --footer-text: #B9CDD2;
            --radius-lg: 14px;
            --radius-md: 10px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --shadow-soft: 0 16px 40px rgba(13, 74, 84, .08);
            --shadow-btn: 0 10px 24px rgba(13, 74, 84, .14);
            --transition: all .2s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

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

        a:hover {
            color: var(--primary-dark);
        }

        ul,
        ol {
            list-style: none;
        }

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

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
            width: 100%;
        }

        .site-header {
            position: sticky;
            top: 14px;
            z-index: 100;
            background: transparent;
            padding-top: 4px;
            margin-bottom: 8px;
        }

        .site-header .container {
            position: relative;
            z-index: 3;
        }

        .nav-card {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(8px);
            border: 1px solid var(--border);
            border-radius: 16px;
            box-shadow: var(--shadow-soft);
            padding: 12px 18px;
        }

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

        .brand-mark {
            width: 42px;
            height: 42px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }

        .brand-text {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: .02em;
            color: var(--text);
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex: 1;
            gap: 16px;
        }

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

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 14px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 500;
            color: var(--muted);
            border: 1px solid transparent;
            line-height: 1.2;
            white-space: nowrap;
        }

        .nav-link i {
            font-size: 13px;
            color: var(--weak);
        }

        .nav-link:hover {
            background: var(--primary-soft);
            color: var(--primary-dark);
            border-color: #D0E4E7;
        }

        .nav-link:hover i {
            color: var(--primary);
        }

        .nav-link.is-active {
            background: var(--primary-soft);
            color: var(--primary-dark);
            font-weight: 600;
            border-color: rgba(26, 107, 120, .35);
        }

        .nav-link.is-active i {
            color: var(--primary);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-md);
            padding: 13px 24px;
            font-size: 15px;
            font-weight: 600;
            border: 1px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            line-height: 1.4;
            min-height: 46px;
            text-align: center;
        }

        .btn i {
            font-size: 14px;
        }

        .btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 14px 30px rgba(13, 74, 84, .2);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 6px 18px rgba(13, 74, 84, .12);
        }

        .btn-soft {
            background: var(--primary-soft);
            color: var(--primary-dark);
            border-color: #CDE2E6;
        }

        .btn-soft:hover {
            background: #D8EAED;
            color: var(--primary-dark);
            transform: translateY(-1px);
        }

        .btn-light {
            background: #fff;
            color: var(--primary-dark);
            border-color: rgba(255, 255, 255, .8);
            box-shadow: 0 8px 20px rgba(0, 0, 0, .08);
        }

        .btn-light:hover {
            background: var(--primary-soft);
            color: var(--primary-dark);
            transform: translateY(-1px);
        }

        .btn-sm {
            min-height: 40px;
            padding: 9px 18px;
            font-size: 14px;
        }

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

        .menu-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--primary-dark);
            border-radius: 2px;
            transition: var(--transition);
        }

        .page-hero {
            position: relative;
            padding: 78px 0 84px;
            color: #fff;
            overflow: hidden;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url("/assets/images/backpic/back-1.webp");
            background-size: cover;
            background-position: center 34%;
            z-index: 0;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(105deg, rgba(13, 74, 84, .96) 0%, rgba(13, 74, 84, .82) 46%, rgba(26, 107, 120, .62) 100%);
            z-index: 1;
        }

        .page-hero .container {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            margin-bottom: 22px;
            color: rgba(255, 255, 255, .88);
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, .88);
        }

        .breadcrumb a:hover {
            color: #fff;
            text-decoration: underline;
        }

        .breadcrumb .sep {
            color: rgba(255, 255, 255, .45);
        }

        .breadcrumb [aria-current="page"] {
            color: #fff;
            font-weight: 600;
        }

        .hero-heading-wrap {
            max-width: 880px;
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .08em;
            padding: 6px 14px;
            background: rgba(255, 255, 255, .14);
            border: 1px solid rgba(255, 255, 255, .3);
            border-radius: var(--radius-pill);
            color: #fff;
            margin-bottom: 18px;
        }

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

        .page-hero h1 {
            font-size: 48px;
            line-height: 1.3;
            font-weight: 700;
            margin-bottom: 20px;
            color: #fff;
            letter-spacing: .01em;
        }

        .page-hero .lead {
            font-size: 19px;
            line-height: 1.85;
            color: rgba(255, 255, 255, .92);
            max-width: 760px;
            margin-bottom: 30px;
        }

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

        .hero-aside-card {
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .22);
            border-radius: var(--radius-lg);
            backdrop-filter: blur(4px);
            padding: 30px;
            display: grid;
            gap: 20px;
        }

        .hero-aside-card i {
            font-size: 30px;
            color: var(--accent);
        }

        .hero-aside-card strong {
            display: block;
            font-size: 18px;
            color: #fff;
            margin-bottom: 6px;
        }

        .hero-aside-card span {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, .82);
        }

        .segment {
            padding: 86px 0;
        }

        .segment-gray {
            background: var(--bg);
        }

        .segment-white {
            background: #fff;
        }

        .section-head {
            max-width: 820px;
            margin-bottom: 46px;
        }

        .section-head .tagline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            background: var(--primary-soft);
            border-radius: var(--radius-pill);
            padding: 5px 14px;
            margin-bottom: 14px;
        }

        .section-head .tagline::before {
            content: "";
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
        }

        .section-head h2 {
            font-size: 34px;
            line-height: 1.4;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
        }

        .section-head p {
            color: var(--muted);
            font-size: 16px;
            line-height: 1.85;
        }

        .section-head.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-head.center .tagline {
            margin-left: auto;
            margin-right: auto;
        }

        .combo-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: 0 8px 26px rgba(13, 74, 84, .05);
            padding: 28px 26px;
            height: 100%;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .combo-card::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            width: 3px;
            height: 64px;
            background: var(--primary);
            border-radius: 0 6px 6px 0;
            opacity: .7;
        }

        .combo-card:hover {
            border-color: var(--border-dark);
            box-shadow: 0 18px 40px rgba(13, 74, 84, .09);
            transform: translateY(-3px);
        }

        .combo-head {
            display: flex;
            align-items: flex-start;
            gap: 14px;
        }

        .combo-icon {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: var(--primary-soft);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            border: 1px solid rgba(26, 107, 120, .14);
        }

        .combo-icon.accent {
            background: var(--accent-light);
            color: #9A6B1D;
            border-color: #F1D5A4;
        }

        .combo-head h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 4px;
        }

        .combo-head p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--muted);
        }

        .combo-list {
            display: grid;
            gap: 10px;
            margin-top: 4px;
        }

        .combo-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
            line-height: 1.7;
            color: var(--text);
        }

        .combo-list li i {
            color: var(--success);
            font-size: 13px;
            margin-top: 6px;
        }

        .combo-link {
            margin-top: auto;
            padding-top: 14px;
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border-top: 1px solid var(--border);
            color: var(--primary);
        }

        .combo-link i {
            font-size: 13px;
            transition: transform .2s ease;
        }

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

        .deep-band {
            background: var(--primary-dark);
            position: relative;
            overflow: hidden;
            padding: 74px 0 70px;
            color: #fff;
        }

        .deep-band .band-inner {
            position: relative;
            z-index: 2;
        }

        .band-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 40px;
        }

        .band-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent);
            font-size: 14px;
            font-weight: 600;
            background: rgba(255, 255, 255, .08);
            padding: 6px 16px;
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: var(--radius-pill);
            margin-bottom: 12px;
        }

        .band-head h2 {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.4;
            color: #fff;
            margin-bottom: 0;
        }

        .band-desc {
            color: rgba(255, 255, 255, .8);
            font-size: 15px;
            line-height: 1.85;
            max-width: 360px;
        }

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

        .key-item {
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: var(--radius-md);
            padding: 26px 24px;
            display: flex;
            gap: 18px;
            transition: var(--transition);
        }

        .key-item:hover {
            background: rgba(255, 255, 255, .12);
            transform: translateY(-2px);
        }

        .key-icon {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, .12);
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }

        .key-item h3 {
            color: #fff;
            font-size: 18px;
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .key-item p {
            color: rgba(255, 255, 255, .72);
            font-size: 14px;
            line-height: 1.75;
            margin: 0;
        }

        .split-feature {
            display: flex;
            align-items: center;
            gap: 40px;
        }

        .split-media {
            flex: 1.06;
            margin: 0;
        }

        .split-media img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-soft);
        }

        .split-content {
            flex: 1;
        }

        .split-content h2 {
            font-size: 30px;
            line-height: 1.45;
            font-weight: 700;
            margin-bottom: 18px;
        }

        .split-content .lead-text {
            font-size: 16px;
            color: var(--muted);
            line-height: 1.9;
            margin-bottom: 22px;
        }

        .split-points {
            display: grid;
            gap: 16px;
        }

        .split-points li {
            display: flex;
            gap: 14px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 14px 18px;
            box-shadow: 0 6px 16px rgba(13, 74, 84, .04);
        }

        .split-points i {
            color: var(--primary);
            margin-top: 5px;
            font-size: 14px;
        }

        .split-points strong {
            display: block;
            font-size: 15px;
            color: var(--text);
            margin-bottom: 2px;
        }

        .split-points span {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
        }

        .steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
            margin-top: 20px;
        }

        .step-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 26px 24px;
            position: relative;
            transition: var(--transition);
        }

        .step-card:hover {
            box-shadow: var(--shadow-soft);
            transform: translateY(-3px);
            border-color: var(--border-dark);
        }

        .step-num {
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            background: var(--accent-light);
            border-radius: var(--radius-pill);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 13px;
            margin-bottom: 18px;
        }

        .step-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }

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

        .faq-section {
            padding: 86px 0 88px;
            background: var(--bg);
        }

        .faq-panel {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            border-top: 3px solid var(--primary);
            box-shadow: var(--shadow-soft);
            overflow: hidden;
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
            transition: background .2s ease;
        }

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

        .faq-item details {
            padding: 0;
        }

        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 26px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            transition: var(--transition);
            line-height: 1.6;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary:hover {
            background: #FAFCFC;
            color: var(--primary-dark);
        }

        .faq-item .faq-icon {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            transition: transform .25s ease, background .2s ease;
        }

        .faq-item details[open] .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            padding: 0 26px 24px;
            font-size: 15px;
            color: var(--muted);
            line-height: 1.9;
        }

        .faq-answer p {
            margin: 0;
        }

        .contact-zone {
            background: #fff;
            padding: 88px 0 92px;
        }

        .contact-wrap {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 42px;
            box-shadow: var(--shadow-soft);
        }

        .contact-info h2 {
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 22px;
            line-height: 1.4;
        }

        .contact-info p {
            color: var(--muted);
            font-size: 15px;
            margin-bottom: 24px;
            line-height: 1.9;
        }

        .info-list {
            display: grid;
            gap: 16px;
        }

        .info-list li {
            display: flex;
            gap: 14px;
            align-items: flex-start;
        }

        .info-list .icon-circle {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .info-list strong {
            display: block;
            font-size: 15px;
            color: var(--text);
        }

        .info-list span {
            font-size: 14px;
            color: var(--muted);
        }

        .form-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 34px;
            box-shadow: 0 10px 28px rgba(13, 74, 84, .06);
        }

        .form-card h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .form-card .form-sub {
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 26px;
        }

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

        .form-field label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 7px;
        }

        .form-field input,
        .form-field select,
        .form-field textarea {
            width: 100%;
            background: #FBFCFC;
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-sm);
            padding: 12px 14px;
            font-size: 15px;
            line-height: 1.5;
            color: var(--text);
            transition: var(--transition);
            outline: none;
        }

        .form-field input:focus,
        .form-field select:focus,
        .form-field textarea:focus {
            background: #fff;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 107, 120, .14);
        }

        .form-field textarea {
            height: 110px;
            resize: vertical;
        }

        .form-note {
            font-size: 13px;
            color: var(--weak);
            margin-top: 10px;
        }

        .cta-panel {
            background: var(--footer-bg);
            color: #fff;
            position: relative;
            overflow: hidden;
            padding: 52px 0;
        }

        .cta-panel::before {
            content: "";
            position: absolute;
            right: -80px;
            top: -60px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .05);
        }

        .cta-panel::after {
            content: "";
            position: absolute;
            right: 40px;
            bottom: -90px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(226, 161, 60, .08);
        }

        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            position: relative;
            z-index: 2;
            flex-wrap: wrap;
        }

        .cta-inner h2 {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .cta-inner p {
            font-size: 15px;
            color: var(--footer-text);
            max-width: 640px;
            margin: 0;
        }

        .cta-inner .btn {
            flex-shrink: 0;
        }

        .site-footer {
            background: var(--footer-bg);
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 70px 0 0;
        }

        .footer-top {
            padding-bottom: 46px;
        }

        .footer-brand {
            margin-bottom: 20px;
        }

        .footer-mark {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }

        .mini-logo {
            width: 42px;
            height: 42px;
            background: rgba(255, 255, 255, .07);
            border: 1px solid rgba(255, 255, 255, .16);
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
        }

        .footer-brand h4 {
            color: #fff;
            font-size: 19px;
            font-weight: 700;
        }

        .footer-brand p {
            color: var(--footer-text);
            font-size: 14px;
            line-height: 1.9;
            margin: 0;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-col h4::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .footer-col ul {
            display: grid;
            gap: 10px;
        }

        .footer-col a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--footer-text);
            font-size: 14px;
            transition: var(--transition);
            line-height: 1.7;
        }

        .footer-col a i {
            font-size: 12px;
            color: rgba(255, 255, 255, .32);
        }

        .footer-col a:hover {
            color: #fff;
            transform: translateX(3px);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .12);
            padding: 18px 0;
        }

        .footer-bottom-inner {
            display: flex;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            color: rgba(255, 255, 255, .5);
            font-size: 13px;
        }

        .site-icp {
            opacity: .72;
        }

        @media (max-width: 75rem) {
            .container {
                padding-left: 22px;
                padding-right: 22px;
            }
        }

        @media (max-width: 64rem) {
            .page-hero {
                padding: 62px 0 70px;
            }

            .page-hero h1 {
                font-size: 40px;
            }

            .split-feature {
                flex-direction: column;
                gap: 28px;
            }

            .split-media {
                flex: none;
                width: 100%;
            }

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

        @media (max-width: 56.25rem) {
            .nav-card {
                flex-wrap: wrap;
            }

            .brand {
                margin-right: auto;
            }

            .nav-links {
                display: none;
                flex: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding-top: 8px;
                border-top: 1px solid var(--border);
                margin-top: 6px;
            }

            .nav-links.is-open {
                display: flex;
            }

            .nav-group {
                flex-direction: column;
                gap: 4px;
                align-items: stretch;
                width: 100%;
            }

            .nav-link {
                width: 100%;
                border-radius: var(--radius-sm);
            }

            .nav-link + .nav-link {
                border-top-color: transparent;
            }

            .nav-cta {
                margin-top: 12px;
                width: 100%;
            }

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

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

            .menu-toggle.is-active span:nth-child(2) {
                opacity: 0;
            }

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

        @media (max-width: 47.5rem) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            body {
                font-size: 15px;
            }

            .site-header {
                top: 8px;
            }

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

            .segment {
                padding: 56px 0;
            }

            .page-hero {
                padding: 42px 0 52px;
            }

            .page-hero h1 {
                font-size: 30px;
                line-height: 1.4;
            }

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

            .section-head h2 {
                font-size: 26px;
            }

            .section-head p {
                font-size: 15px;
            }

            .combo-card {
                padding: 22px 18px;
            }

            .deep-band {
                padding: 56px 0 54px;
            }

            .band-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

            .band-head h2 {
                font-size: 25px;
            }

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

            .key-item {
                padding: 22px;
            }

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

            .faq-section {
                padding: 56px 0;
            }

            .faq-item summary {
                padding: 18px 18px;
                font-size: 15px;
            }

            .faq-answer {
                padding: 0 18px 20px;
                font-size: 14px;
            }

            .contact-zone {
                padding: 52px 0 56px;
            }

            .contact-wrap {
                padding: 22px 16px;
            }

            .form-card {
                padding: 24px 16px;
            }

            .cta-inner h2 {
                font-size: 23px;
            }

            .footer-top {
                padding-bottom: 30px;
            }
        }

        @media (max-width: 23.75rem) {
            .hero-actions .btn {
                width: 100%;
            }
        }