/* roulang page: index */
:root {
  --c-primary: #0D7A80;
  --c-primary-dark: #0A4A50;
  --c-primary-soft: #DCF0F0;
  --c-accent: #EF7A3D;
  --c-accent-dark: #D95E24;
  --c-bg: #F4F9F8;
  --c-surface: #FFFFFF;
  --c-section-alt: #E7F0EF;
  --c-ink: #142F32;
  --c-muted: #58767A;
  --c-border: #CFE2E0;
  --r-large: 32px;
  --r-medium: 16px;
  --r-small: 8px;
  --shadow-card: 0 4px 20px rgba(7,67,71,0.08);
  --shadow-hover: 0 12px 40px rgba(7,67,71,0.16), 0 2px 8px rgba(7,67,71,0.08);
  --space-section: clamp(72px, 9vw, 128px);
  --font-cn: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "DIN Alternate", "Bahnschrift", "Arial Narrow", sans-serif;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-cn);
  background: var(--c-bg);
  color: var(--c-ink);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--c-primary);
  text-decoration: none;
  transition: color 0.25s ease;
}
a:hover {
  color: var(--c-accent-dark);
}
button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
}
section {
  padding: var(--space-section) 0;
  position: relative;
}
.section-head {
  max-width: 760px;
  margin-bottom: 52px;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--c-primary);
  margin-bottom: 14px;
}
.section-tag::before {
  content: "";
  width: 24px;
  height: 4px;
  border-radius: 4px;
  background: var(--c-primary);
  display: inline-block;
}
.section-head h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--c-ink);
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}
.section-desc {
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-muted);
  max-width: 620px;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: 999px;
  background: linear-gradient(135deg, #0D8B90, #0A6B70);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.25s ease;
  box-shadow: 0 4px 14px rgba(7,67,71,0.22);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(7,67,71,0.30);
  color: #fff;
  background: linear-gradient(135deg, #0D8B90, #0A4A50);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 10px rgba(7,67,71,0.20);
}
.btn-primary:focus-visible,
.btn-secondary:focus-visible,
.nav-link:focus-visible,
.accordion-title:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: 3px;
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: 999px;
  background: var(--c-surface);
  color: var(--c-primary);
  font-size: 16px;
  font-weight: 600;
  border: 1.5px solid var(--c-primary);
  cursor: pointer;
  transition: all 0.25s ease;
}
.btn-secondary:hover {
  background: var(--c-primary-soft);
  color: var(--c-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(7,67,71,0.12);
}
.btn-secondary:active {
  transform: translateY(0);
}
/* ---------- Header & Nav ---------- */
.site-header {
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: box-shadow 0.25s ease;
}
.site-header.scrolled {
  box-shadow: 0 6px 24px rgba(7,67,71,0.08);
}
.header-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  gap: 24px;
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, #0D8B90, #0A4A50);
  color: #fff;
  font-family: var(--font-num);
  font-size: 16px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 0.5px;
}
.brand-text {
  font-size: 20px;
  font-weight: 800;
  color: var(--c-ink);
  letter-spacing: 0.3px;
  white-space: nowrap;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-item {
  position: relative;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: var(--c-ink);
  transition: all 0.25s ease;
  white-space: nowrap;
}
.nav-link:hover {
  background: var(--c-primary-soft);
  color: var(--c-primary);
}
.nav-link.active {
  background: var(--c-primary);
  color: #fff;
  font-weight: 600;
}
.nav-cta {
  flex-shrink: 0;
  height: 42px;
  padding: 0 22px;
  font-size: 14px;
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: none;
  background: transparent;
  border-radius: 12px;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: var(--c-ink);
  transition: all 0.25s ease;
}
.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
/* Mega Menu */
.mega-panel {
  position: absolute;
  top: 52px;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--c-surface);
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(7,67,71,0.18);
  border: 1px solid var(--c-border);
  padding: 24px 28px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 32px;
  min-width: 620px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
}
.nav-item:hover .mega-panel,
.nav-item:focus-within .mega-panel {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.mega-title {
  display: block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--c-muted);
  margin-bottom: 14px;
}
.mega-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.mega-col a {
  font-size: 14px;
  color: var(--c-ink);
  line-height: 1.5;
  transition: all 0.25s ease;
}
.mega-col a:hover {
  color: var(--c-primary);
  transform: translateX(4px);
}
.mega-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--c-bg);
  border-radius: 16px;
  padding: 14px;
  border: 1px solid var(--c-border);
}
.mega-card img {
  border-radius: 12px;
  width: 100%;
  height: 100px;
  object-fit: cover;
}
.mega-card span {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-ink);
}
.mega-card:hover {
  border-color: var(--c-primary);
  transform: none;
}
/* ---------- Hero ---------- */
.hero {
  padding: 0;
  position: relative;
  background: linear-gradient(135deg, #DCEFF0 0%, #A9D3D2 60%, #5C9E9C 130%);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.22;
}
.hero::after {
  content: "";
  position: absolute;
  right: -80px;
  top: -80px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: rgba(255,255,255,0.35);
  filter: blur(60px);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
  min-height: 620px;
  padding: 80px 0;
  position: relative;
  z-index: 1;
}
.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.7);
  border: 1px solid rgba(255,255,255,0.9);
  border-radius: 999px;
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-primary-dark);
  margin-bottom: 24px;
  backdrop-filter: none;
}
.hero h1 {
  font-size: clamp(40px, 6vw, 68px);
  font-weight: 800;
  line-height: 1.15;
  color: var(--c-ink);
  letter-spacing: -1px;
  margin-bottom: 20px;
}
.hero-sub {
  font-size: 18px;
  line-height: 1.8;
  color: var(--c-primary-dark);
  max-width: 520px;
  margin-bottom: 36px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
  margin-top: 56px;
  border-top: 1px solid rgba(255,255,255,0.6);
  padding-top: 28px;
  flex-wrap: wrap;
}
.hero-stat {
  display: flex;
  flex-direction: column;
  padding: 0 28px;
  border-right: 1px solid rgba(255,255,255,0.5);
}
.hero-stat:first-child {
  padding-left: 0;
}
.hero-stat:last-child {
  border-right: none;
}
.hero-stat .num {
  font-family: var(--font-num);
  font-size: 36px;
  font-weight: 800;
  color: var(--c-primary-dark);
  line-height: 1.1;
}
.hero-stat .label {
  font-size: 13px;
  color: var(--c-muted);
  margin-top: 4px;
}
.hero-img-wrap {
  border-radius: 32px;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(7,67,71,0.18);
  transform: rotate(1deg);
  transition: transform 0.4s ease;
}
.hero-img-wrap:hover {
  transform: rotate(0deg) scale(1.02);
}
.hero-img-wrap img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}
/* ---------- Pain Points ---------- */
.pain-section {
  background: var(--c-bg);
}
.pain-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.pain-card {
  background: var(--c-surface);
  border-radius: var(--r-large);
  padding: clamp(24px, 4vw, 40px);
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-card);
  display: flex;
  gap: 20px;
  align-items: flex-start;
  transition: all 0.25s ease;
}
.pain-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--c-primary);
  transform: translateY(-4px);
}
.pain-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--c-primary-soft);
  color: var(--c-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 22px;
  font-weight: 700;
}
.pain-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}
.pain-card p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-muted);
}
/* ---------- Solution ---------- */
.solution-section {
  background: var(--c-section-alt);
}
.solution-top {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  margin-bottom: 72px;
}
.solution-top-text .section-head {
  margin-bottom: 28px;
}
.solution-feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 28px;
}
.solution-feature {
  background: var(--c-surface);
  border-radius: var(--r-medium);
  padding: 20px;
  border: 1px solid var(--c-border);
  transition: all 0.25s ease;
}
.solution-feature:hover {
  border-color: var(--c-primary);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.solution-feature .f-icon {
  font-size: 24px;
  margin-bottom: 10px;
}
.solution-feature h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}
.solution-feature p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-muted);
}
.solution-img-wrap {
  border-radius: var(--r-large);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  position: relative;
}
.solution-img-wrap img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}
.solution-bottom {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: center;
}
.solution-bottom-img {
  border-radius: var(--r-large);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
}
.solution-bottom-img img {
  width: 100%;
  height: 340px;
  object-fit: cover;
}
.step-list {
  list-style: none;
  margin: 0;
}
.step-list li {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  padding: 24px 0;
  border-bottom: 1px solid var(--c-border);
}
.step-list li:last-child {
  border-bottom: none;
}
.step-num {
  font-family: var(--font-num);
  font-size: 40px;
  font-weight: 800;
  color: var(--c-primary);
  line-height: 1;
  min-width: 80px;
}
.step-content h4 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 6px;
}
.step-content p {
  font-size: 15px;
  color: var(--c-muted);
  line-height: 1.7;
}
/* ---------- Result ---------- */
.result-section {
  background: linear-gradient(135deg, #0B3236 0%, #12474C 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.result-section::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 560px;
  height: 560px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.08);
}
.result-section .section-head h2,
.result-section .section-desc {
  color: #fff;
}
.result-section .section-desc {
  color: rgba(255,255,255,0.72);
}
.result-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
  position: relative;
  z-index: 1;
}
.result-item {
  text-align: center;
  padding: 32px 20px;
  border-radius: var(--r-large);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.10);
  position: relative;
  transition: all 0.25s ease;
}
.result-item:hover {
  background: rgba(255,255,255,0.10);
  transform: translateY(-4px);
}
.result-item .stat-corner {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 22px;
  height: 4px;
  border-radius: 4px;
  background: var(--c-accent);
}
.stat-num {
  font-family: var(--font-num);
  font-size: 64px;
  font-weight: 800;
  line-height: 1;
  color: #fff;
  margin-bottom: 12px;
}
.stat-num span {
  color: var(--c-accent);
}
.stat-label {
  font-size: 14px;
  color: rgba(255,255,255,0.72);
  letter-spacing: 1px;
}
/* ---------- News ---------- */
.news-section {
  background: var(--c-bg);
}
.news-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: stretch;
}
.news-main-card {
  background: var(--c-surface);
  border-radius: var(--r-large);
  overflow: hidden;
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  transition: all 0.25s ease;
  height: 100%;
}
.news-main-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--c-primary);
  transform: translateY(-4px);
}
.news-main-img {
  overflow: hidden;
  height: 240px;
}
.news-main-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.news-main-card:hover .news-main-img img {
  transform: scale(1.05);
}
.news-main-body {
  padding: 24px 28px 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--c-muted);
}
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--c-primary-soft);
  color: var(--c-primary-dark);
  font-size: 12px;
  font-weight: 600;
}
.news-main-body h3 {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
}
.news-main-body p {
  font-size: 15px;
  color: var(--c-muted);
  line-height: 1.7;
  flex: 1;
}
.news-more {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
}
.news-more:hover {
  color: var(--c-accent-dark);
}
.news-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.news-list-item {
  background: var(--c-surface);
  border-radius: var(--r-medium);
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-card);
  padding: 18px;
  display: flex;
  gap: 16px;
  align-items: center;
  transition: all 0.25s ease;
}
.news-list-item:hover {
  border-color: var(--c-primary);
  box-shadow: var(--shadow-hover);
  transform: translateX(4px);
}
.news-list-thumb {
  width: 88px;
  height: 72px;
  border-radius: 12px;
  overflow: hidden;
  flex-shrink: 0;
}
.news-list-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.news-list-info {
  flex: 1;
  min-width: 0;
}
.news-list-info h4 {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-empty-state {
  grid-column: 1 / -1;
  border: 2px dashed var(--c-border);
  border-radius: var(--r-large);
  padding: 64px 24px;
  text-align: center;
  background: var(--c-surface);
  color: var(--c-muted);
}
.empty-icon {
  display: block;
  font-size: 42px;
  color: var(--c-primary);
  margin-bottom: 12px;
}
/* ---------- Testimonials ---------- */
.testimonial-section {
  background: var(--c-section-alt);
}
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial-card {
  background: var(--c-surface);
  border-radius: var(--r-large);
  padding: 32px;
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: all 0.25s ease;
}
.testimonial-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.stars {
  color: var(--c-accent);
  font-size: 18px;
  letter-spacing: 3px;
}
.testimonial-card blockquote {
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-ink);
  margin: 0;
}
.t-person {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: auto;
}
.t-avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--c-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  flex-shrink: 0;
}
.t-avatar.orange {
  background: var(--c-accent);
}
.t-name {
  font-size: 15px;
  font-weight: 700;
}
.t-role {
  font-size: 13px;
  color: var(--c-muted);
}
/* ---------- FAQ ---------- */
.faq-section {
  background: var(--c-bg);
}
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
}
.faq-wrap .accordion {
  background: transparent;
  list-style: none;
}
.faq-wrap .accordion-item {
  background: var(--c-surface);
  border-radius: var(--r-medium);
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-card);
  margin-bottom: 16px;
  overflow: hidden;
  transition: all 0.25s ease;
}
.faq-wrap .accordion-item:hover {
  border-color: var(--c-primary);
}
.faq-wrap .accordion-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--c-ink);
  padding: 22px 28px;
  border-bottom: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.25s ease;
}
.faq-wrap .accordion-title:hover {
  color: var(--c-primary);
  background: var(--c-primary-soft);
}
.faq-wrap .accordion-title::after {
  content: "+";
  font-size: 24px;
  font-weight: 400;
  color: var(--c-primary);
  transition: transform 0.25s ease;
}
.faq-wrap .accordion-item.is-active .accordion-title {
  color: var(--c-primary);
  background: var(--c-primary-soft);
}
.faq-wrap .accordion-item.is-active .accordion-title::after {
  transform: rotate(45deg);
}
.faq-wrap .accordion-content {
  padding: 0 28px 22px;
  color: var(--c-muted);
  line-height: 1.8;
  font-size: 15px;
  border-bottom: none;
  background: transparent;
}
/* ---------- CTA ---------- */
.cta-section {
  padding: 0;
}
.cta-card {
  background: linear-gradient(135deg, #0B3236 0%, #12474C 100%);
  border-radius: 32px;
  padding: clamp(48px, 7vw, 88px) clamp(24px, 5vw, 64px);
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-card::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -120px;
  transform: translateX(-50%);
  width: 420px;
  height: 420px;
  border-radius: 50%;
  border: 42px solid rgba(255,255,255,0.06);
}
.cta-card h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}
.cta-card p {
  font-size: 16px;
  line-height: 1.8;
  color: rgba(255,255,255,0.76);
  max-width: 560px;
  margin: 0 auto 32px;
  position: relative;
  z-index: 1;
}
.cta-card .btn-primary {
  position: relative;
  z-index: 1;
  background: linear-gradient(135deg, var(--c-accent), var(--c-accent-dark));
  box-shadow: 0 8px 24px rgba(239,122,61,0.3);
}
.cta-card .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(239,122,61,0.42);
}
/* ---------- Footer ---------- */
.site-footer {
  background: linear-gradient(135deg, #0B3236 0%, #0A3D42 100%);
  color: rgba(255,255,255,0.82);
  margin-top: var(--space-section);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}
.footer-brand .brand-mark {
  background: rgba(255,255,255,0.14);
}
.site-footer h4 {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.site-footer p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,0.62);
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,0.74);
  transition: all 0.25s ease;
}
.footer-links a:hover {
  color: var(--c-accent);
  padding-left: 6px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.10);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.46);
}
/* ---------- Utilities ---------- */
.text-center {
  text-align: center;
}
.mt-16 {
  margin-top: 16px;
}
.fade-up {
  animation: fadeUp 0.6s ease both;
}
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
/* ---------- Responsive ---------- */
@media screen and (max-width: 1024px) {
  .header-wrap {
    height: 64px;
  }
  .nav-toggle {
    display: flex;
  }
  .main-nav {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--c-surface);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px 24px;
    display: none;
    box-shadow: 0 20px 40px rgba(7,67,71,0.12);
    border-bottom: 1px solid var(--c-border);
    gap: 4px;
    max-height: 80vh;
    overflow-y: auto;
  }
  .main-nav.open {
    display: flex;
  }
  .nav-link {
    height: 48px;
    padding: 0 16px;
  }
  .mega-panel {
    position: static;
    transform: none;
    box-shadow: none;
    border: none;
    border-radius: 16px;
    min-width: 0;
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 12px 16px 16px;
    background: var(--c-bg);
    margin: 4px 0 12px;
    opacity: 1;
    visibility: visible;
    display: none;
  }
  .nav-item.open-mega .mega-panel {
    display: grid;
  }
  .nav-item:hover .mega-panel {
    display: none;
  }
  .nav-item.open-mega:hover .mega-panel {
    display: grid;
  }
  .nav-cta {
    display: none;
  }
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    min-height: auto;
    padding: 64px 0;
  }
  .hero-img-wrap img {
    height: 320px;
  }
  .solution-top,
  .solution-bottom {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .result-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .news-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .testimonial-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}
@media screen and (max-width: 768px) {
  .section-head {
    margin-bottom: 36px;
  }
  .pain-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .solution-feature-grid {
    grid-template-columns: 1fr;
  }
  .step-num {
    font-size: 32px;
    min-width: 64px;
  }
  .cta-card {
    border-radius: 24px;
  }
}
@media screen and (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .brand-text {
    font-size: 17px;
  }
  .brand-mark {
    width: 36px;
    height: 36px;
    border-radius: 12px;
    font-size: 14px;
  }
  .hero h1 {
    font-size: 38px;
  }
  .hero-sub {
    font-size: 16px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-actions .btn-primary,
  .hero-actions .btn-secondary {
    width: 100%;
  }
  .hero-stats {
    margin-top: 36px;
    gap: 12px;
  }
  .hero-stat {
    padding: 0 16px;
  }
  .hero-stat .num {
    font-size: 28px;
  }
  .hero-stat .label {
    font-size: 12px;
  }
  .result-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .result-item {
    padding: 24px 12px;
  }
  .stat-num {
    font-size: 44px;
  }
  .stat-label {
    font-size: 12px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .news-list-item {
    flex-direction: column;
    align-items: flex-start;
  }
  .news-list-thumb {
    width: 100%;
    height: 140px;
  }
  .news-list-info h4 {
    white-space: normal;
  }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --c-primary: #0D7A80;
            --c-primary-dark: #0A4A50;
            --c-primary-soft: #DCF0F0;
            --c-accent: #EF7A3D;
            --c-accent-dark: #D95E24;
            --c-bg: #F4F9F8;
            --c-surface: #FFFFFF;
            --c-section-alt: #E7F0EF;
            --c-ink: #142F32;
            --c-muted: #58767A;
            --c-border: #CFE2E0;
            --grad-hero: linear-gradient(135deg, #DCEFF0 0%, #A9D3D2 60%, #5C9E9C 130%);
            --grad-dark: linear-gradient(135deg, #0B3236 0%, #12474C 100%);
            --grad-btn: linear-gradient(135deg, #0D8B90, #0A6B70);
            --radius-lg: 32px;
            --radius-md: 16px;
            --radius-sm: 8px;
            --shadow-card: 0 4px 20px rgba(7, 67, 71, 0.08);
            --shadow-hover: 0 12px 40px rgba(7, 67, 71, 0.16), 0 2px 8px rgba(7, 67, 71, 0.08);
            --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "DIN Alternate", "Bahnschrift", "Arial Narrow", sans-serif;
            --space-section: clamp(72px, 9vw, 128px);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--c-bg);
            color: var(--c-ink);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

        ul,
        ol {
            list-style: none;
        }

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

        /* ===== 容器 ===== */
        .container {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            height: 50px;
            padding: 0 30px;
            border-radius: 999px;
            font-size: 16px;
            font-weight: 600;
            line-height: 1;
            cursor: pointer;
            transition: all 0.25s ease;
            white-space: nowrap;
            border: 1px solid transparent;
        }

        .btn-primary {
            background: var(--grad-btn);
            color: #fff;
            box-shadow: 0 6px 18px rgba(13, 122, 128, 0.28);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 26px rgba(13, 122, 128, 0.35);
            color: #fff;
        }

        .btn-secondary {
            background: var(--c-surface);
            color: var(--c-primary);
            border-color: var(--c-primary);
        }

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

        .btn-lg {
            height: 56px;
            padding: 0 38px;
            font-size: 17px;
        }

        /* ===== 导航 Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            border-bottom: 1px solid var(--c-border);
            box-shadow: 0 2px 12px rgba(7, 67, 71, 0.05);
            transition: box-shadow 0.25s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 6px 24px rgba(7, 67, 71, 0.10);
        }

        .header-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
            gap: 30px;
        }

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

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 14px;
            background: var(--grad-btn);
            color: #fff;
            font-weight: 800;
            font-size: 15px;
            letter-spacing: 0.02em;
            box-shadow: 0 4px 12px rgba(13, 122, 128, 0.25);
        }

        .brand-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--c-ink);
            letter-spacing: 0.01em;
        }

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

        .nav-link {
            display: inline-flex;
            align-items: center;
            height: 38px;
            padding: 0 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--c-ink);
            transition: background 0.25s ease, color 0.25s ease;
        }

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

        .nav-link.active {
            background: var(--c-primary);
            color: #fff;
            font-weight: 600;
        }

        .nav-item {
            position: relative;
        }

        .mega-panel {
            position: absolute;
            top: calc(100% + 12px);
            left: 50%;
            transform: translateX(-50%);
            width: 720px;
            background: var(--c-surface);
            border-radius: 20px;
            box-shadow: 0 20px 60px rgba(7, 67, 71, 0.18);
            border: 1px solid var(--c-border);
            padding: 24px;
            display: grid;
            grid-template-columns: 1fr 1fr 1.2fr;
            gap: 28px;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
            pointer-events: none;
        }

        .nav-item:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
            transform: translateX(-50%) translateY(4px);
        }

        .mega-title {
            display: block;
            font-size: 13px;
            font-weight: 700;
            color: var(--c-muted);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 16px;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--c-border);
        }

        .mega-col a {
            display: block;
            padding: 8px 0;
            font-size: 14px;
            color: var(--c-ink);
            border-radius: 8px;
        }

        .mega-col a:hover {
            color: var(--c-primary);
            background: var(--c-primary-soft);
            padding-left: 10px;
        }

        .mega-card {
            display: flex;
            align-items: center;
            gap: 12px;
            background: var(--c-bg);
            border-radius: 14px;
            padding: 10px;
            margin-top: 8px;
        }

        .mega-card img {
            width: 64px;
            height: 48px;
            object-fit: cover;
            border-radius: 8px;
        }

        .mega-card span {
            font-size: 14px;
            font-weight: 600;
            color: var(--c-ink);
        }

        .menu-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--c-primary-soft);
            color: var(--c-primary);
            font-size: 20px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
        }

        /* ===== Hero ===== */
        .category-hero {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 90px 0 80px;
            text-align: center;
            overflow: hidden;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.88) 20%, rgba(220, 239, 240, 0.72) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 760px;
            margin: 0 auto;
        }

        .breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--c-muted);
            background: rgba(255, 255, 255, 0.7);
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 24px;
        }

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

        .hero-title {
            font-size: clamp(36px, 5vw, 56px);
            font-weight: 800;
            line-height: 1.15;
            color: var(--c-ink);
            letter-spacing: 0.01em;
            margin-bottom: 18px;
        }

        .hero-subtitle {
            font-size: 18px;
            line-height: 1.8;
            color: var(--c-muted);
            max-width: 640px;
            margin: 0 auto 32px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== 通用板块 ===== */
        .section {
            padding-top: var(--space-section);
            padding-bottom: var(--space-section);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            color: var(--c-primary);
            margin-bottom: 12px;
        }

        .section-label::before {
            content: "";
            width: 4px;
            height: 24px;
            border-radius: 999px;
            background: var(--c-accent);
        }

        .section-title {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 800;
            line-height: 1.2;
            color: var(--c-ink);
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--c-muted);
            max-width: 680px;
            line-height: 1.8;
        }

        /* ===== 品牌动态介绍（左右分栏） ===== */
        .cat-intro {
            background: var(--c-surface);
        }

        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
            margin-bottom: 72px;
        }

        .intro-copy .section-title {
            margin-bottom: 20px;
        }

        .intro-copy p {
            font-size: 17px;
            line-height: 1.85;
            color: var(--c-muted);
            margin-bottom: 16px;
        }

        .intro-media {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .intro-media img {
            width: 100%;
            height: 400px;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }

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

        .info-card {
            background: var(--c-bg);
            border: 1px solid transparent;
            border-radius: var(--radius-md);
            padding: 32px;
            transition: box-shadow 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
        }

        .info-card:hover {
            background: var(--c-surface);
            border-color: var(--c-primary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .info-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: var(--c-primary-soft);
            color: var(--c-primary);
            font-size: 20px;
            margin-bottom: 18px;
        }

        .info-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--c-ink);
            margin-bottom: 10px;
        }

        .info-card p {
            font-size: 15px;
            color: var(--c-muted);
            line-height: 1.75;
        }

        /* ===== 数据区 ===== */
        .cat-stats {
            background: var(--grad-dark);
            color: #fff;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }

        .stat-item {
            padding: 28px 20px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.10);
            position: relative;
        }

        .stat-item::after {
            content: "";
            position: absolute;
            top: 0;
            right: 20px;
            width: 36px;
            height: 3px;
            background: var(--c-accent);
            border-radius: 999px;
        }

        .stat-num {
            font-family: var(--font-num);
            font-size: clamp(40px, 5vw, 60px);
            font-weight: 700;
            line-height: 1;
            color: #fff;
            margin-bottom: 12px;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.72);
            letter-spacing: 0.03em;
        }

        /* ===== 近期重点 ===== */
        .cat-highlights {
            background: var(--c-section-alt);
        }

        .high-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            margin-top: 48px;
        }

        .high-card {
            background: var(--c-surface);
            border-radius: var(--radius-lg);
            padding: 36px;
            box-shadow: var(--shadow-card);
            border: 1px solid transparent;
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }

        .high-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--c-primary);
        }

        .high-card .info-icon {
            background: var(--c-primary);
            color: #fff;
        }

        .high-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--c-ink);
        }

        .high-card p {
            font-size: 15px;
            color: var(--c-muted);
            line-height: 1.75;
            margin-bottom: 20px;
        }

        .high-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            color: var(--c-primary);
        }

        .high-link:hover {
            color: var(--c-accent-dark);
        }

        /* ===== FAQ ===== */
        .cat-faq {
            background: var(--c-surface);
        }

        .faq-wrap {
            max-width: 860px;
            margin: 48px auto 0;
        }

        .accordion-item {
            border: 1px solid var(--c-border);
            border-radius: var(--radius-md);
            background: var(--c-surface);
            margin-bottom: 16px;
            overflow: hidden;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }

        .accordion-item.is-active {
            border-color: var(--c-primary);
            box-shadow: 0 6px 24px rgba(13, 122, 128, 0.10);
        }

        .accordion-title {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 22px 28px;
            font-size: 17px;
            font-weight: 600;
            color: var(--c-ink);
            cursor: pointer;
            transition: color 0.25s ease;
        }

        .accordion-title::before {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            color: var(--c-primary);
            font-size: 14px;
            transition: transform 0.25s ease;
        }

        .accordion-item.is-active .accordion-title::before {
            transform: rotate(180deg);
        }

        .accordion-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .accordion-content-inner {
            padding: 0 28px 24px 52px;
            font-size: 16px;
            color: var(--c-muted);
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cat-cta {
            padding-top: 0;
            padding-bottom: var(--space-section);
            background: var(--c-surface);
        }

        .cta-card {
            position: relative;
            background: var(--grad-dark);
            border-radius: var(--radius-lg);
            padding: clamp(48px, 7vw, 80px) 40px;
            text-align: center;
            color: #fff;
            overflow: hidden;
        }

        .cta-card::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -60px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            border: 60px solid rgba(255, 255, 255, 0.06);
        }

        .cta-card::after {
            content: "";
            position: absolute;
            bottom: -100px;
            left: -40px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            border: 30px solid rgba(239, 122, 61, 0.12);
        }

        .cta-card h2 {
            position: relative;
            z-index: 2;
            font-size: clamp(28px, 4vw, 42px);
            font-weight: 800;
            margin-bottom: 16px;
        }

        .cta-card p {
            position: relative;
            z-index: 2;
            font-size: 17px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            margin: 0 auto 32px;
        }

        .cta-actions {
            position: relative;
            z-index: 2;
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .cta-actions .btn-primary {
            box-shadow: 0 8px 24px rgba(13, 139, 144, 0.45);
        }

        .cta-actions .btn-secondary {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.5);
            color: #fff;
        }

        .cta-actions .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.20);
            color: #fff;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--grad-dark);
            color: rgba(255, 255, 255, 0.75);
            padding-top: 72px;
        }

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

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand .brand-mark {
            background: rgba(255, 255, 255, 0.14);
            box-shadow: none;
        }

        .site-footer p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
        }

        .site-footer h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

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

        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: color 0.25s ease, padding-left 0.25s ease;
        }

        .footer-links a:hover {
            color: var(--c-accent);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 24px 0;
            text-align: center;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .header-wrap {
                gap: 16px;
            }

            .main-nav {
                position: fixed;
                top: 70px;
                left: 0;
                right: 0;
                background: var(--c-surface);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 24px 24px;
                box-shadow: 0 16px 40px rgba(7, 67, 71, 0.14);
                display: none;
                z-index: 99;
                max-height: calc(100vh - 70px);
                overflow-y: auto;
            }

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

            .nav-link {
                height: 46px;
                justify-content: center;
            }

            .nav-item {
                display: flex;
                flex-direction: column;
            }

            .mega-panel {
                position: static;
                transform: none;
                width: 100%;
                opacity: 1;
                visibility: visible;
                pointer-events: auto;
                display: none;
                box-shadow: none;
                border: none;
                padding: 12px 8px;
                background: var(--c-bg);
                margin-top: 4px;
                border-radius: 16px;
            }

            .nav-item.mega-open .mega-panel {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

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

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

        @media (max-width: 767px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .brand-text {
                font-size: 17px;
            }

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

            .hero-title {
                font-size: 32px;
            }

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

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

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

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

            .stat-item {
                padding: 24px 16px;
            }

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

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

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

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

            .btn {
                width: 100%;
                max-width: 300px;
            }

            .nav-item.mega-open .mega-panel {
                grid-template-columns: 1fr;
            }

            .cta-actions {
                flex-direction: column;
                align-items: center;
            }

            .cta-actions .btn {
                width: 100%;
                max-width: 280px;
            }
        }

/* roulang page: article */
/* ========================================
   mg冰球突破官网 - 完整视觉系统
   设计令牌 / 基础 / 组件 / 响应式
======================================== */
:root {
  --c-primary: #0D7A80;
  --c-primary-dark: #0A4A50;
  --c-primary-soft: #DCF0F0;
  --c-accent: #EF7A3D;
  --c-accent-dark: #D95E24;
  --c-bg: #F4F9F8;
  --c-surface: #FFFFFF;
  --c-section-alt: #E7F0EF;
  --c-ink: #142F32;
  --c-muted: #58767A;
  --c-border: #CFE2E0;
  --c-night: #0B3236;
  --shadow-card: 0 4px 20px rgba(7,67,71,0.08);
  --shadow-hover: 0 12px 40px rgba(7,67,71,0.16), 0 2px 8px rgba(7,67,71,0.08);
  --radius-lg: 32px;
  --radius-md: 16px;
  --radius-sm: 8px;
  --transition: 0.25s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--c-bg);
  color: var(--c-ink);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--c-primary); text-decoration: none; transition: color 0.25s ease; }
a:hover { color: var(--c-primary-dark); }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; }
:focus-visible { outline: 2px solid var(--c-primary); outline-offset: 2px; }

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

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: 999px;
  border: 2px solid transparent;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s ease;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, #0D8B90, #0A6B70);
  color: #fff;
  box-shadow: 0 4px 14px rgba(13,122,128,0.2);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #0A7A80, #095860);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(13,122,128,0.28);
}
.btn-outline {
  background: transparent;
  color: var(--c-primary);
  border-color: var(--c-primary);
}
.btn-outline:hover {
  background: var(--c-primary-soft);
  transform: translateY(-2px);
}
.btn-lg { height: 56px; padding: 0 36px; font-size: 17px; }

/* ---------- 导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: 70px;
  background: rgba(255,255,255,0.96);
  backdrop-filter: saturate(1.2);
  border-bottom: 1px solid rgba(207,226,224,0.8);
  box-shadow: 0 2px 12px rgba(7,67,71,0.04);
  transition: box-shadow 0.3s ease;
}
.site-header.scrolled { box-shadow: 0 4px 20px rgba(7,67,71,0.08); }
.header-wrap {
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  text-decoration: none;
}
.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, #0D8B90, #0A4A50);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 12px rgba(13,122,128,0.25);
}
.brand-text {
  font-weight: 800;
  color: var(--c-ink);
  font-size: 20px;
  letter-spacing: -0.3px;
}
.main-nav { display: flex; align-items: center; gap: 4px; }
.nav-item { position: relative; }
.nav-link {
  display: block;
  padding: 10px 16px;
  border-radius: 999px;
  color: var(--c-ink);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.25s ease;
}
.nav-link:hover { color: var(--c-primary); background: var(--c-primary-soft); }
.nav-link.active {
  color: #fff;
  background: var(--c-primary);
  box-shadow: 0 4px 12px rgba(13,122,128,0.2);
}
.mega-panel {
  display: none;
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%);
  min-width: 680px;
  background: #fff;
  border-radius: 20px;
  box-shadow: 0 24px 60px rgba(7,67,71,0.16), 0 4px 12px rgba(7,67,71,0.06);
  padding: 28px;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  z-index: 100;
  border: 1px solid rgba(207,226,224,0.5);
}
.nav-item.has-mega:hover .mega-panel,
.nav-item.has-mega:focus-within .mega-panel { display: grid; }
.mega-col { display: flex; flex-direction: column; gap: 6px; }
.mega-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--c-muted);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--c-border);
  margin-bottom: 8px;
  text-transform: uppercase;
}
.mega-col > a {
  display: block;
  color: var(--c-ink);
  font-size: 14px;
  padding: 8px 10px;
  border-radius: 10px;
  text-decoration: none;
  transition: all 0.2s ease;
}
.mega-col > a:hover { background: var(--c-primary-soft); color: var(--c-primary); }
.mega-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--c-bg);
  border-radius: 16px;
  padding: 12px;
  border: 1px solid var(--c-border);
}
.mega-card img { border-radius: 12px; width: 100%; height: 76px; object-fit: cover; }
.mega-card span { font-weight: 600; color: var(--c-ink); font-size: 14px; }
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--c-border);
  border-radius: 12px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  transition: all 0.25s ease;
  padding: 0;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--c-ink);
  border-radius: 2px;
  transition: all 0.25s ease;
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 页面横幅 ---------- */
.page-banner {
  padding: 52px 0 48px;
  background:
    linear-gradient(135deg, rgba(220,239,240,0.94), rgba(169,211,210,0.88)),
    url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
  border-bottom: 1px solid var(--c-border);
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--c-muted);
}
.breadcrumb a { color: var(--c-primary); font-weight: 500; text-decoration: none; }
.breadcrumb a:hover { color: var(--c-accent); }
.breadcrumb .sep { color: #A8C5C3; }
.breadcrumb .current { color: var(--c-muted); font-weight: 500; }

/* ---------- 文章区 ---------- */
.article-section {
  padding: clamp(48px, 7vw, 80px) 0;
}
.article-section .container { max-width: 920px; }
.article-card {
  background: var(--c-surface);
  border-radius: var(--radius-lg);
  padding: clamp(28px, 5vw, 56px);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--c-border);
}
.article-header { margin-bottom: 40px; }
.article-cats { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 16px; }
.cat-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--c-primary-soft);
  color: var(--c-primary-dark);
  font-size: 13px;
  font-weight: 700;
  border-radius: 999px;
  padding: 6px 14px;
}
.article-header h1 {
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--c-ink);
  letter-spacing: -0.5px;
  margin-bottom: 18px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: var(--c-muted);
  font-size: 14px;
}
.meta-item { display: inline-flex; align-items: center; gap: 6px; }
.meta-item i { color: var(--c-primary); width: 16px; text-align: center; }

/* ---------- 文章正文 ---------- */
.article-content { font-size: 17px; line-height: 1.9; color: var(--c-ink); }
.article-content p { margin-bottom: 28px; }
.article-content h2 {
  font-size: 28px;
  font-weight: 800;
  color: var(--c-ink);
  margin: 48px 0 20px;
  line-height: 1.4;
}
.article-content h3 {
  font-size: 22px;
  font-weight: 700;
  margin: 36px 0 16px;
  color: var(--c-ink);
}
.article-content h4 {
  font-size: 18px;
  font-weight: 700;
  margin: 28px 0 12px;
  color: var(--c-ink);
}
.article-content img {
  border-radius: 16px;
  margin: 32px 0;
  width: 100%;
  height: auto;
}
.article-content blockquote {
  border-left: 4px solid var(--c-accent);
  background: var(--c-bg);
  border-radius: 0 16px 16px 0;
  padding: 22px 28px;
  margin: 32px 0;
  color: var(--c-muted);
  font-size: 17px;
  line-height: 1.8;
}
.article-content table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--c-border);
  margin: 32px 0;
}
.article-content th,
.article-content td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--c-border);
  text-align: left;
  font-size: 15px;
  line-height: 1.6;
}
.article-content th { background: var(--c-section-alt); font-weight: 700; }
.article-content tr:last-child td { border-bottom: 0; }
.article-content ul,
.article-content ol { margin: 24px 0; padding-left: 24px; }
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content li { margin-bottom: 8px; line-height: 1.8; }
.article-content li::marker { color: var(--c-primary); }
.article-content a { color: var(--c-primary); text-decoration: underline; text-underline-offset: 3px; }
.article-content a:hover { color: var(--c-accent-dark); }
.article-content pre {
  background: var(--c-night);
  color: #DCEFF0;
  border-radius: 12px;
  padding: 24px;
  overflow-x: auto;
  font-size: 14px;
  line-height: 1.7;
  margin: 32px 0;
}
.article-content code {
  background: var(--c-section-alt);
  color: var(--c-primary-dark);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 0.9em;
}
.article-content pre code { background: transparent; color: inherit; padding: 0; }
.article-content hr { border: 0; border-top: 1px solid var(--c-border); margin: 40px 0; }

/* ---------- 标签 ---------- */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--c-border);
}
.tag {
  display: inline-block;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  color: var(--c-muted);
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.2s ease;
}
.tag:hover { border-color: var(--c-primary); color: var(--c-primary); background: var(--c-primary-soft); }

/* ---------- 空状态 ---------- */
.not-found-card {
  background: var(--c-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  border: 1px dashed var(--c-border);
  text-align: center;
  padding: 80px 32px;
}
.not-found-icon {
  display: inline-flex;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--c-primary-soft);
  color: var(--c-primary);
  font-size: 24px;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.not-found-card h1 { font-size: 32px; font-weight: 800; margin-bottom: 12px; }
.not-found-card p { color: var(--c-muted); margin-bottom: 28px; }

/* ---------- 相关推荐 ---------- */
.related-section { padding: clamp(60px, 8vw, 100px) 0; background: var(--c-section-alt); }
.section-head { max-width: 620px; margin-bottom: 44px; }
.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--c-primary);
  letter-spacing: 1px;
  margin-bottom: 10px;
  padding: 6px 14px;
  background: var(--c-primary-soft);
  border-radius: 999px;
}
.section-head h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  color: var(--c-ink);
  line-height: 1.25;
  margin-bottom: 12px;
}
.section-head p { font-size: 16px; color: var(--c-muted); line-height: 1.7; }
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.related-card {
  display: flex;
  flex-direction: column;
  background: var(--c-surface);
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid transparent;
  box-shadow: var(--shadow-card);
  transition: all 0.3s ease;
  text-decoration: none;
  color: var(--c-ink);
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--c-primary);
  color: var(--c-ink);
}
.related-card img { width: 100%; height: 180px; object-fit: cover; }
.related-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.related-body h3 { font-size: 18px; font-weight: 700; line-height: 1.5; margin-bottom: 10px; }
.related-body p { font-size: 14px; color: var(--c-muted); line-height: 1.7; flex: 1; }
.related-card .meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--c-muted);
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--c-border);
}
.related-card .meta i { margin-left: 4px; transition: transform 0.3s ease; }
.related-card:hover .meta i { transform: translateX(4px); }
.section-bottom { text-align: center; margin-top: 40px; }

/* ---------- 页脚 ---------- */
.site-footer {
  background: linear-gradient(135deg, #0B3236 0%, #12474C 100%);
  color: rgba(255,255,255,0.85);
  padding: 64px 0 0;
  font-size: 14px;
  line-height: 1.8;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  text-decoration: none;
  margin-bottom: 16px;
}
.footer-brand .brand-mark { box-shadow: none; }
.footer-brand:hover { color: #fff; }
.site-footer p { color: rgba(255,255,255,0.65); }
.site-footer h4 {
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}
.footer-links { display: flex; flex-direction: column; gap: 8px; }
.footer-links a {
  color: rgba(255,255,255,0.65);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s ease;
}
.footer-links a:hover { color: var(--c-accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}
.footer-bottom a { color: rgba(255,255,255,0.6); }
.footer-bottom a:hover { color: #fff; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .mega-panel { min-width: 560px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .header-wrap { gap: 12px; }
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.98);
    flex-direction: column;
    align-items: stretch;
    padding: 20px;
    box-shadow: 0 20px 40px rgba(7,67,71,0.12);
    display: none;
    max-height: calc(100vh - 70px);
    overflow-y: auto;
    z-index: 999;
  }
  .main-nav.open { display: flex; gap: 4px; }
  .nav-item.has-mega .mega-panel {
    display: none;
    position: static;
    transform: none;
    min-width: 0;
    background: var(--c-bg);
    border-radius: 16px;
    border: 1px solid var(--c-border);
    padding: 18px;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    box-shadow: none;
    margin-top: 6px;
  }
  .nav-item.has-mega.open .mega-panel { display: grid; }
  .nav-link { padding: 12px 14px; border-radius: 12px; }
  .article-section .container { max-width: 100%; }
  .article-card { padding: 28px 22px; border-radius: 20px; }
  .article-content p { font-size: 17px; }
  .article-content h2 { font-size: 24px; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 520px) {
  .brand-text { font-size: 17px; }
  .page-banner { padding: 36px 0; }
  .nav-item.has-mega .mega-panel { grid-template-columns: 1fr; }
  .article-meta { gap: 10px; flex-direction: column; }
  .article-tags { gap: 8px; }
  .tag { font-size: 12px; padding: 6px 12px; }
  .related-card img { height: 160px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .btn-lg { width: 100%; }
}

/* roulang page: category2 */
:root {
  --c-primary: #0D7A80;
  --c-primary-dark: #0A4A50;
  --c-primary-soft: #DCF0F0;
  --c-accent: #EF7A3D;
  --c-accent-dark: #D95E24;
  --c-bg: #F4F9F8;
  --c-surface: #FFFFFF;
  --c-section-alt: #E7F0EF;
  --c-ink: #142F32;
  --c-muted: #58767A;
  --c-border: #CFE2E0;
  --radius-lg: 32px;
  --radius-md: 16px;
  --radius-sm: 8px;
  --shadow-card: 0 4px 20px rgba(7,67,71,0.08);
  --shadow-hover: 0 12px 40px rgba(7,67,71,0.16), 0 2px 8px rgba(7,67,71,0.08);
  --transition: 0.25s ease;
  --font-cn: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "DIN Alternate", "Bahnschrift", "Arial Narrow", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-cn);
  background: var(--c-bg);
  color: var(--c-ink);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--c-primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--c-accent-dark); }
button { font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; }
:focus-visible { outline: 2px solid var(--c-primary); outline-offset: 2px; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.section-pad {
  padding: clamp(72px, 9vw, 128px) 0;
}
.section-title-wrap {
  max-width: 700px;
  margin-bottom: 48px;
}
.section-title-wrap .section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--c-primary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--c-primary-soft);
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.section-title-wrap h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--c-ink);
  margin-bottom: 12px;
}
.section-title-wrap p {
  font-size: 17px;
  color: var(--c-muted);
  line-height: 1.8;
}
.section-title-left {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}
.section-title-left::before {
  content: "";
  flex: 0 0 4px;
  width: 4px;
  height: 36px;
  background: var(--c-primary);
  border-radius: 4px;
  margin-top: 6px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  border-bottom: 1px solid var(--c-border);
  box-shadow: 0 2px 12px rgba(7,67,71,0.06);
  transition: box-shadow 0.3s ease;
}
.site-header.scrolled {
  box-shadow: 0 4px 24px rgba(7,67,71,0.12);
}
.header-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  gap: 24px;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, #0D8B90, #0A6B70);
  border-radius: 12px;
  color: #fff;
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 12px rgba(13,122,128,0.3);
}
.brand-text {
  font-size: 18px;
  font-weight: 800;
  color: var(--c-ink);
  white-space: nowrap;
}
.brand-text:hover { color: var(--c-primary); }

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-item {
  position: relative;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  color: var(--c-ink);
  transition: all 0.25s ease;
  white-space: nowrap;
}
.nav-link:hover {
  background: var(--c-primary-soft);
  color: var(--c-primary);
}
.nav-link.active {
  background: var(--c-primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(13,122,128,0.28);
}
.nav-link.active:hover {
  background: var(--c-primary-dark);
  color: #fff;
}

.mega-panel {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  width: 680px;
  background: #fff;
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(7,67,71,0.16);
  padding: 28px;
  display: grid;
  grid-template-columns: 1.1fr 1.2fr 1fr;
  gap: 28px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  border: 1px solid var(--c-border);
  z-index: 100;
}
.nav-item:hover .mega-panel,
.nav-item:focus-within .mega-panel {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.mega-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.mega-title {
  font-size: 13px;
  font-weight: 800;
  color: var(--c-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.mega-col a {
  font-size: 14px;
  color: var(--c-ink);
  padding: 8px 10px;
  border-radius: 10px;
  transition: all 0.2s ease;
}
.mega-col a:hover {
  background: var(--c-bg);
  color: var(--c-primary);
  padding-left: 14px;
}
.mega-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--c-bg);
  border-radius: 14px;
  padding: 10px;
  border: 1px solid transparent;
}
.mega-card:hover {
  border-color: var(--c-border);
  background: #fff;
}
.mega-card img {
  width: 100%;
  height: 80px;
  object-fit: cover;
  border-radius: 10px;
}
.mega-card span {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-ink);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  align-items: center;
  justify-content: center;
  gap: 5px;
  flex-direction: column;
  background: var(--c-bg);
}
.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--c-ink);
  border-radius: 2px;
  transition: all 0.3s ease;
}
.menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 50px;
  padding: 0 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, #0D8B90, #0A6B70);
  color: #fff;
  box-shadow: 0 6px 20px rgba(13,122,128,0.25);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(13,122,128,0.35);
  color: #fff;
}
.btn-outline {
  background: #fff;
  color: var(--c-primary);
  border: 2px solid var(--c-primary);
}
.btn-outline:hover {
  background: var(--c-primary-soft);
  color: var(--c-primary-dark);
  transform: translateY(-2px);
}
.btn-light {
  background: #fff;
  color: var(--c-primary-dark);
}
.btn-light:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.18);
  color: var(--c-primary-dark);
}
.btn-lg { height: 56px; padding: 0 36px; font-size: 16px; }

/* Category Hero */
.category-hero {
  position: relative;
  background: linear-gradient(135deg, #DCEFF0 0%, #A9D3D2 60%, #5C9E9C 130%);
  padding: clamp(56px, 7vw, 96px) 0;
  overflow: hidden;
}
.category-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  opacity: 0.18;
  z-index: 0;
}
.category-hero::after {
  content: "";
  position: absolute;
  right: -80px;
  top: -80px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.4);
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--c-primary-dark);
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.breadcrumb a {
  color: var(--c-primary-dark);
  font-weight: 600;
}
.breadcrumb a:hover { color: var(--c-accent-dark); }
.breadcrumb .sep { opacity: 0.5; }
.category-hero h1 {
  font-size: clamp(38px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.15;
  color: var(--c-ink);
  margin-bottom: 20px;
}
.category-hero .hero-sub {
  font-size: clamp(16px, 2vw, 18px);
  color: var(--c-primary-dark);
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 620px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Timeline */
.timeline-section {
  background: var(--c-bg);
}
.timeline {
  position: relative;
  max-width: 840px;
  margin: 0 auto;
  padding-left: 0;
  list-style: none;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 44px;
  top: 10px;
  bottom: 10px;
  width: 3px;
  background: linear-gradient(to bottom, var(--c-primary), var(--c-primary-soft), var(--c-border));
  border-radius: 3px;
}
.timeline-item {
  position: relative;
  padding: 0 0 48px 100px;
}
.timeline-item:last-child {
  padding-bottom: 0;
}
.timeline-num {
  position: absolute;
  left: 0;
  top: 0;
  width: 88px;
  height: 88px;
  background: #fff;
  border-radius: 24px;
  border: 2px solid var(--c-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-num);
  font-size: 30px;
  font-weight: 800;
  color: var(--c-primary);
  box-shadow: var(--shadow-card);
  z-index: 1;
  transition: all 0.3s ease;
}
.timeline-item:hover .timeline-num {
  background: var(--c-primary);
  color: #fff;
  transform: scale(1.05);
  box-shadow: 0 8px 24px rgba(13,122,128,0.3);
}
.timeline-content {
  background: #fff;
  border-radius: 20px;
  padding: 28px 32px;
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}
.timeline-item:hover .timeline-content {
  border-color: var(--c-primary);
  box-shadow: var(--shadow-hover);
  transform: translateX(4px);
}
.timeline-content h3 {
  font-size: 20px;
  font-weight: 800;
  color: var(--c-ink);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.timeline-content h3 span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-accent);
  flex-shrink: 0;
}
.timeline-content p {
  font-size: 16px;
  color: var(--c-muted);
  line-height: 1.8;
}

/* Horizontal cards */
.hcards-section {
  background: var(--c-section-alt);
}
.hcards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.hcard {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid transparent;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}
.hcard:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: var(--c-primary);
}
.hcard-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.hcard:hover .hcard-img {
  transform: scale(1.03);
}
.hcard-body {
  padding: 24px 28px 28px;
}
.hcard-body .tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--c-primary);
  background: var(--c-primary-soft);
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.hcard-body h3 {
  font-size: 20px;
  font-weight: 800;
  color: var(--c-ink);
  margin-bottom: 10px;
}
.hcard-body p {
  font-size: 15px;
  color: var(--c-muted);
  line-height: 1.7;
}
.hcard-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 700;
  color: var(--c-primary);
  margin-top: 16px;
  transition: all 0.25s ease;
}
.hcard-link:hover {
  color: var(--c-accent-dark);
  gap: 10px;
}

/* Quote */
.quote-section {
  background: linear-gradient(135deg, #0B3236 0%, #12474C 100%);
  padding: clamp(64px, 8vw, 110px) 0;
  position: relative;
  overflow: hidden;
}
.quote-section::before {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -60px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  border: 3px solid rgba(239,122,61,0.35);
}
.quote-section::after {
  content: "";
  position: absolute;
  right: 40px;
  bottom: 20px;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.12);
}
.quote-inner {
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 2;
}
.quote-mark {
  font-size: 64px;
  color: var(--c-accent);
  line-height: 1;
  font-family: Georgia, serif;
  margin-bottom: 20px;
}
.quote-text {
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 700;
  color: #fff;
  line-height: 1.6;
  margin-bottom: 24px;
}
.quote-source {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.04em;
}

/* FAQ */
.faq-section {
  background: var(--c-bg);
}
.faq-wrap {
  max-width: 840px;
  margin: 0 auto;
}
.faq-item {
  background: #fff;
  border-radius: 18px;
  border: 1px solid var(--c-border);
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover {
  border-color: var(--c-primary);
}
.faq-item .accordion-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--c-ink);
  padding: 20px 28px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: var(--transition);
}
.faq-item .accordion-title::before {
  content: "+";
  font-size: 24px;
  font-weight: 400;
  color: var(--c-primary);
  transition: transform 0.3s ease;
}
.faq-item .accordion-title:hover {
  background: var(--c-primary-soft);
}
.faq-item.is-active .accordion-title::before {
  transform: rotate(45deg);
}
.faq-item .accordion-content {
  padding: 0 28px 22px;
  font-size: 15px;
  color: var(--c-muted);
  line-height: 1.8;
  border-top: 1px solid var(--c-border);
  padding-top: 16px;
}

/* CTA */
.cta-section {
  background: var(--c-bg);
  padding-bottom: clamp(72px, 9vw, 128px);
}
.cta-card {
  background: linear-gradient(135deg, #0B3236 0%, #12474C 100%);
  border-radius: 32px;
  padding: clamp(48px, 7vw, 80px);
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 16px 40px rgba(7,67,71,0.25);
}
.cta-card::before {
  content: "";
  position: absolute;
  left: -60px;
  top: -60px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.12);
}
.cta-card::after {
  content: "";
  position: absolute;
  right: 30px;
  bottom: 20px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  border: 2px solid rgba(239,122,61,0.4);
}
.cta-card h2 {
  font-size: clamp(26px, 3.6vw, 38px);
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
  position: relative;
  z-index: 2;
}
.cta-card p {
  font-size: 16px;
  color: rgba(255,255,255,0.75);
  margin-bottom: 32px;
  position: relative;
  z-index: 2;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  position: relative;
  z-index: 2;
}

/* Footer */
.site-footer {
  background: #0B3236;
  color: rgba(255,255,255,0.75);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  color: #fff;
  font-size: 18px;
  font-weight: 800;
}
.footer-brand .brand-mark {
  width: 36px;
  height: 36px;
  font-size: 13px;
}
.footer-brand:hover { color: #fff; }
.site-footer p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,0.6);
  margin-bottom: 0;
}
.site-footer h4 {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: 0.04em;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: all 0.2s ease;
}
.footer-links a:hover {
  color: var(--c-accent);
  padding-left: 6px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding: 24px 0;
  text-align: center;
}
.footer-bottom p {
  font-size: 13px;
  color: rgba(255,255,255,0.45);
}

/* Responsive */
@media (max-width: 1024px) {
  .mega-panel {
    width: 560px;
    grid-template-columns: 1fr 1fr;
    left: 0;
    transform: translateX(0) translateY(12px);
  }
  .nav-item:hover .mega-panel,
  .nav-item:focus-within .mega-panel {
    transform: translateX(0) translateY(0);
  }
  .mega-col:last-child { display: none; }
  .hcards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}
@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }
  .main-nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px 24px;
    box-shadow: 0 20px 40px rgba(7,67,71,0.15);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition: all 0.3s ease;
    border-bottom: 1px solid var(--c-border);
    max-height: calc(100vh - 70px);
    overflow-y: auto;
    gap: 4px;
  }
  .main-nav.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .nav-item {
    width: 100%;
  }
  .nav-link {
    width: 100%;
    justify-content: space-between;
    padding: 14px 18px;
  }
  .nav-link::after {
    content: "▾";
    font-size: 12px;
    transition: transform 0.3s ease;
  }
  .nav-link.active::after { content: ""; }
  .mega-panel {
    position: static;
    transform: none;
    width: 100%;
    box-shadow: none;
    border: 1px solid var(--c-border);
    border-radius: 14px;
    padding: 16px;
    opacity: 1;
    visibility: visible;
    display: none;
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 4px;
    background: var(--c-bg);
  }
  .nav-item:hover .mega-panel,
  .nav-item:focus-within .mega-panel {
    transform: none;
  }
  .nav-item.open .mega-panel {
    display: grid;
  }
  .mega-col:last-child { display: flex; }
  .mega-card img { height: 100px; }
  .timeline-item {
    padding-left: 80px;
  }
  .timeline-num {
    width: 68px;
    height: 68px;
    font-size: 24px;
    border-radius: 18px;
  }
  .timeline::before {
    left: 34px;
  }
  .hcards-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .cta-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .cta-actions .btn {
    width: 100%;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }
  .brand-text {
    font-size: 16px;
  }
  .brand-mark {
    width: 36px;
    height: 36px;
    font-size: 13px;
  }
  .timeline-item {
    padding-left: 0;
    padding-top: 76px;
    padding-bottom: 40px;
  }
  .timeline::before {
    left: 32px;
    top: 0;
  }
  .timeline-num {
    left: 0;
    top: 0;
    width: 64px;
    height: 64px;
    font-size: 22px;
  }
  .timeline-content {
    padding: 22px;
  }
  .section-title-wrap h2 {
    font-size: 26px;
  }
  .faq-item .accordion-title {
    font-size: 15px;
    padding: 18px 20px;
  }
  .faq-item .accordion-content {
    padding: 0 20px 18px;
    padding-top: 14px;
    font-size: 14px;
  }
}

/* roulang page: category3 */
:root {
  --c-primary: #0D7A80;
  --c-primary-dark: #0A4A50;
  --c-primary-soft: #DCF0F0;
  --c-accent: #EF7A3D;
  --c-accent-dark: #D95E24;
  --c-bg: #F4F9F8;
  --c-surface: #FFFFFF;
  --c-section-alt: #E7F0EF;
  --c-ink: #142F32;
  --c-muted: #58767A;
  --c-border: #CFE2E0;
  --grad-hero: linear-gradient(135deg, #DCEFF0 0%, #A9D3D2 60%, #5C9E9C 130%);
  --grad-dark: linear-gradient(135deg, #0B3236 0%, #12474C 100%);
  --grad-btn: linear-gradient(135deg, #0D8B90, #0A6B70);
  --radius-lg: 32px;
  --radius-md: 16px;
  --radius-pill: 999px;
  --radius-sm: 8px;
  --shadow-card: 0 4px 20px rgba(7,67,71,0.08);
  --shadow-card-hover: 0 12px 40px rgba(7,67,71,0.16), 0 2px 8px rgba(7,67,71,0.08);
  --spacer-section: clamp(72px, 9vw, 128px);
  --font-cn: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "DIN Alternate", "Bahnschrift", "Arial Narrow", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-cn);
  background: var(--c-bg);
  color: var(--c-ink);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

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

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

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-pill);
  font-size: 16px;
  font-weight: 600;
  transition: all 0.25s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--grad-btn);
  color: #ffffff !important;
  box-shadow: 0 8px 24px rgba(13, 122, 128, 0.28);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(13, 122, 128, 0.36);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 12px rgba(13, 122, 128, 0.24);
}

.btn-secondary {
  background: var(--c-surface);
  color: var(--c-primary);
  border: 1.5px solid var(--c-primary);
}

.btn-secondary:hover {
  background: var(--c-primary-soft);
  transform: translateY(-2px);
}

.btn-lg {
  height: 56px;
  padding: 0 36px;
  font-size: 17px;
}

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-border);
  transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
  box-shadow: 0 6px 24px rgba(7, 67, 71, 0.08);
}

.header-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

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

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--grad-btn);
  color: #fff;
  font-weight: 800;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: -0.5px;
  box-shadow: 0 4px 16px rgba(13, 122, 128, 0.3);
}

.brand-text {
  font-size: 20px;
  font-weight: 800;
  color: var(--c-ink);
  letter-spacing: 0.5px;
}

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

.nav-link {
  display: inline-flex;
  align-items: center;
  height: 70px;
  padding: 0 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--c-ink);
  transition: all 0.25s ease;
  position: relative;
  border-radius: 0;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 3px;
  border-radius: 3px 3px 0 0;
  background: var(--c-primary);
  transition: width 0.3s ease;
}

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

.nav-link:hover::after,
.nav-link.active::after {
  width: 28px;
}

.nav-link.active {
  color: var(--c-primary);
  font-weight: 600;
}

.nav-item {
  position: relative;
}

.mega-panel {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  background: var(--c-surface);
  border-radius: 20px;
  box-shadow: 0 24px 60px rgba(7, 67, 71, 0.16);
  min-width: 640px;
  padding: 32px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  border: 1px solid #E8F1F0;
}

.nav-item.has-mega:hover .mega-panel {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.mega-title {
  display: block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--c-muted);
  margin-bottom: 14px;
}

.mega-col a:not(.mega-card) {
  display: block;
  padding: 7px 0;
  font-size: 14px;
  color: var(--c-ink);
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.mega-col a:not(.mega-card):hover {
  color: var(--c-primary);
  padding-left: 6px;
}

.mega-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--c-section-alt);
  border-radius: var(--radius-md);
  padding: 12px;
  transition: box-shadow 0.25s ease;
}

.mega-card:hover {
  box-shadow: var(--shadow-card-hover);
}

.mega-card img {
  border-radius: var(--radius-sm);
  height: 80px;
  object-fit: cover;
}

.mega-card span {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-primary);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--c-border);
  background: var(--c-surface);
}

.hamburger span {
  width: 18px;
  height: 2px;
  background: var(--c-ink);
  border-radius: 2px;
  transition: all 0.3s ease;
}

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

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

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

/* ===== Page Hero ===== */
.page-hero {
  position: relative;
  padding: 90px 0 80px;
  background: var(--grad-hero);
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  top: -40px;
  right: -60px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.6);
}

.page-hero::after {
  content: "";
  position: absolute;
  bottom: -80px;
  left: 30%;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  border: 1px solid rgba(13, 122, 128, 0.2);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.7);
  color: var(--c-primary-dark);
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-pill);
  padding: 6px 16px;
  margin-bottom: 20px;
  border: 1px solid rgba(13, 122, 128, 0.15);
}

.hero-badge i {
  font-size: 12px;
}

.page-hero h1 {
  font-size: clamp(38px, 5vw, 52px);
  font-weight: 800;
  line-height: 1.15;
  color: var(--c-ink);
  margin-bottom: 16px;
}

.page-hero p {
  font-size: 17px;
  line-height: 1.75;
  color: var(--c-ink);
  max-width: 620px;
  opacity: 0.85;
}

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

.section-alt {
  background: var(--c-section-alt);
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 52px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--c-primary);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 12px;
}

.section-tag::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--c-accent);
  display: inline-block;
}

.section-head h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--c-ink);
  margin-bottom: 14px;
}

.section-head p {
  font-size: 16px;
  color: var(--c-muted);
  line-height: 1.7;
}

/* ===== Compare Section ===== */
.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.compare-card {
  background: var(--c-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid transparent;
  box-shadow: var(--shadow-card);
  transition: all 0.25s ease;
}

.compare-card:hover {
  box-shadow: var(--shadow-card-hover);
  border-color: var(--c-primary);
}

.compare-img {
  position: relative;
  height: 240px;
  overflow: hidden;
}

.compare-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.compare-card:hover .compare-img img {
  transform: scale(1.04);
}

.compare-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(11, 50, 54, 0.35));
}

.compare-body {
  padding: 32px;
}

.compare-body h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--c-ink);
  margin-bottom: 12px;
}

.compare-body p {
  font-size: 15px;
  color: var(--c-muted);
  line-height: 1.7;
  margin-bottom: 18px;
}

.compare-body ul {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 12px;
}

.compare-body ul li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--c-ink);
}

.compare-body ul li::before {
  content: "\f00c";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 12px;
  color: var(--c-primary);
  background: var(--c-primary-soft);
  border-radius: 50%;
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ===== Quote Section ===== */
.quote-section {
  background: var(--grad-dark);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.quote-section::before {
  content: "\201C";
  position: absolute;
  top: -30px;
  left: 20px;
  font-size: 260px;
  font-family: Georgia, serif;
  color: rgba(255, 255, 255, 0.08);
}

.quote-section blockquote {
  position: relative;
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
  font-size: 24px;
  line-height: 1.7;
  font-weight: 600;
  color: #E9F5F4;
  padding: 0 40px;
}

.quote-section cite {
  display: block;
  margin-top: 22px;
  font-size: 14px;
  font-style: normal;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 1px;
}

/* ===== Scenario Section ===== */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.scenario-card {
  background: var(--c-surface);
  border-radius: 24px;
  padding: 28px 24px;
  text-align: center;
  box-shadow: var(--shadow-card);
  border: 1px solid transparent;
  transition: all 0.25s ease;
}

.scenario-card:hover {
  box-shadow: var(--shadow-card-hover);
  border-color: var(--c-primary);
  transform: translateY(-4px);
}

.scenario-card .icon-wrap {
  width: 60px;
  height: 60px;
  border-radius: 18px;
  background: var(--c-primary-soft);
  color: var(--c-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  font-size: 24px;
}

.scenario-card:nth-child(2) .icon-wrap {
  background: rgba(239, 122, 61, 0.12);
  color: var(--c-accent);
}

.scenario-card:nth-child(3) .icon-wrap {
  background: rgba(13, 122, 128, 0.1);
  color: var(--c-primary-dark);
}

.scenario-card:nth-child(4) .icon-wrap {
  background: rgba(20, 47, 50, 0.08);
  color: var(--c-ink);
}

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

.scenario-card p {
  font-size: 14px;
  color: var(--c-muted);
  line-height: 1.65;
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--c-section-alt);
}

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

.accordion {
  background: transparent;
}

.accordion-item {
  background: var(--c-surface);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  border: 1px solid var(--c-border);
  overflow: hidden;
  transition: all 0.25s ease;
}

.accordion-item.is-active {
  border-color: var(--c-primary);
  box-shadow: 0 8px 30px rgba(13, 122, 128, 0.1);
}

.accordion-title {
  font-size: 16px !important;
  font-weight: 600 !important;
  color: var(--c-ink) !important;
  padding: 18px 22px !important;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: color 0.25s ease;
  background: var(--c-surface) !important;
  border: none !important;
}

.accordion-title::after {
  content: "\f078" !important;
  font-family: "Font Awesome 6 Free" !important;
  font-weight: 900 !important;
  font-size: 13px !important;
  color: var(--c-primary) !important;
  opacity: 0.7;
  transition: transform 0.3s ease, opacity 0.3s ease;
  position: static !important;
  margin: 0 !important;
}

.accordion-item.is-active .accordion-title::after {
  transform: rotate(180deg);
  opacity: 1;
}

.accordion-title:hover {
  color: var(--c-primary) !important;
  background: var(--c-surface) !important;
}

.accordion-content {
  padding: 0 22px 18px !important;
  color: var(--c-muted) !important;
  font-size: 15px !important;
  line-height: 1.7 !important;
  border: none !important;
  background: var(--c-surface) !important;
}

.accordion-content p {
  color: var(--c-muted);
}

/* ===== CTA ===== */
.cta-section {
  padding: var(--spacer-section) 0;
}

.cta-box {
  background: var(--grad-dark);
  border-radius: var(--radius-lg);
  padding: 64px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -40px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.cta-box::after {
  content: "";
  position: absolute;
  bottom: -100px;
  left: 10%;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.cta-box h2 {
  position: relative;
  z-index: 1;
  color: #ffffff;
  font-size: clamp(26px, 3.5vw, 34px);
  font-weight: 800;
  margin-bottom: 14px;
}

.cta-box p {
  position: relative;
  z-index: 1;
  color: rgba(255, 255, 255, 0.75);
  font-size: 16px;
  margin-bottom: 32px;
}

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

.cta-actions .btn-primary {
  background: linear-gradient(135deg, #EF7A3D, #D95E24);
  box-shadow: 0 8px 24px rgba(239, 122, 61, 0.35);
}

.cta-actions .btn-secondary {
  border-color: rgba(255, 255, 255, 0.6);
  color: #ffffff;
  background: transparent;
}

.cta-actions .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* ===== Footer ===== */
.site-footer {
  background: #0B2A2E;
  color: rgba(255, 255, 255, 0.6);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 44px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  color: #ffffff;
  font-size: 18px;
  font-weight: 800;
}

.footer-brand .brand-mark {
  width: 38px;
  height: 38px;
  font-size: 14px;
}

.site-footer p {
  font-size: 14px;
  line-height: 1.7;
}

.site-footer h4 {
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

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

.footer-links a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.25s ease, padding-left 0.25s ease;
}

.footer-links a:hover {
  color: var(--c-accent);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

/* ===== Focus ===== */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .mega-panel {
    min-width: 520px;
  }

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

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

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--c-surface);
    flex-direction: column;
    align-items: stretch;
    padding: 20px;
    box-shadow: 0 16px 40px rgba(7, 67, 71, 0.12);
    display: none;
    max-height: calc(100vh - 70px);
    overflow-y: auto;
    gap: 2px;
  }

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

  .nav-link {
    height: auto;
    padding: 14px 16px;
    border-radius: var(--radius-md);
  }

  .nav-link::after {
    display: none;
  }

  .nav-link.active {
    background: var(--c-primary-soft);
  }

  .mega-panel {
    position: static;
    transform: none;
    min-width: 0;
    grid-template-columns: 1fr;
    gap: 20px;
    box-shadow: none;
    border-radius: var(--radius-md);
    padding: 20px;
    opacity: 1;
    visibility: visible;
    margin-top: 6px;
    background: var(--c-section-alt);
    display: none;
  }

  .nav-item.has-mega.open-panel .mega-panel {
    display: grid;
  }

  .nav-item.has-mega:hover .mega-panel {
    transform: none;
    opacity: 1;
    visibility: visible;
  }

  .page-hero {
    padding: 60px 0 52px;
  }

  .page-hero h1 {
    font-size: 36px;
  }

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

  .compare-body ul {
    grid-template-columns: 1fr 1fr;
  }

  .quote-section blockquote {
    font-size: 19px;
    padding: 0 20px;
  }

  .cta-box {
    padding: 44px 24px;
  }

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

@media (max-width: 520px) {
  .container {
    padding-left: 18px;
    padding-right: 18px;
  }

  .brand-text {
    font-size: 17px;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
    font-size: 14px;
  }

  .compare-body ul {
    grid-template-columns: 1fr;
  }

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

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

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