/* roulang page: index */
:root {
  --brand: #0F7F6E;
  --brand-dark: #0A5A4F;
  --brand-light: #35B99C;
  --accent: #FF7A45;
  --accent-dark: #E85F2B;
  --bg: #FBF9F5;
  --bg-lake: #F3F8F6;
  --white: #FFFFFF;
  --text: #1B2A27;
  --muted: #6B7A76;
  --border: #E3E8E5;
  --footer: #0B2B25;
  --radius-xl: 28px;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-img: 20px;
  --radius-input: 12px;
  --shadow: 0 8px 24px rgba(15, 127, 110, .08);
  --shadow-hover: 0 14px 36px rgba(15, 127, 110, .16);
  --container: 1200px;
  --header-h: 76px;
  --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --ease: 220ms ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.menu-open {
  overflow: hidden;
}

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

a {
  color: var(--brand);
  text-decoration: none;
  transition: color var(--ease), text-decoration-color var(--ease), transform var(--ease);
}

a:hover {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 4px;
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 999;
  padding: 10px 18px;
  background: var(--text);
  color: var(--white);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  transition: top var(--ease);
}

.skip-link:focus {
  top: 12px;
  color: var(--white);
  text-decoration: none;
}

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

.topbar {
  background: var(--bg-lake);
  border-bottom: 1px solid rgba(15, 127, 110, .08);
  font-size: 13px;
  color: var(--muted);
}

.topbar-inner {
  min-height: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.topbar p {
  margin: 0;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  line-height: 1.4;
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand-light);
  box-shadow: 0 0 0 4px rgba(53, 185, 156, .14);
  animation: statusPulse 2.4s infinite;
}

@keyframes statusPulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(53, 185, 156, .14); }
  50% { box-shadow: 0 0 0 7px rgba(53, 185, 156, .06); }
}

.topbar-divider {
  width: 1px;
  height: 13px;
  background: var(--border);
}

.topbar-close {
  width: 28px;
  height: 28px;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--muted);
  font-size: 20px;
  line-height: 1;
  display: inline-grid;
  place-items: center;
  transition: background var(--ease), color var(--ease);
}

.topbar-close:hover {
  background: rgba(15, 127, 110, .08);
  color: var(--brand);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .97);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--ease), background var(--ease);
}

.site-header.scrolled {
  box-shadow: 0 8px 24px rgba(11, 43, 37, .07);
  background: rgba(255, 255, 255, .99);
}

.nav-shell {
  position: relative;
  min-height: var(--header-h);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
}

.nav-left,
.nav-right {
  display: flex;
  align-items: center;
  gap: 18px;
}

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

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 3px 2px;
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  white-space: nowrap;
  text-decoration: none;
}

.nav-link:hover,
.nav-link.active {
  color: var(--brand);
  text-decoration: none;
}

.nav-link.active::after {
  content: "";
  position: absolute;
  left: 2px;
  right: 2px;
  bottom: 1px;
  height: 3px;
  border-radius: 999px;
  background: var(--accent);
}

.brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
}

.brand:hover {
  color: var(--text);
  text-decoration: none;
}

.brand-mark {
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--brand), var(--brand-light));
  color: var(--white);
  box-shadow: 0 8px 18px rgba(15, 127, 110, .22);
}

.brand-mark svg {
  width: 27px;
  height: 27px;
}

.brand-text {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -.01em;
  line-height: 1.2;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 12px 24px;
  border: 0;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--ease), color var(--ease), border-color var(--ease), transform var(--ease), box-shadow var(--ease), opacity var(--ease);
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-2px);
}

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

.btn-primary {
  background: var(--accent);
  color: var(--white);
  box-shadow: 0 10px 22px rgba(255, 122, 69, .22);
}

.btn-primary:hover {
  background: var(--accent-dark);
  color: var(--white);
  box-shadow: 0 14px 28px rgba(255, 122, 69, .28);
}

.btn-secondary {
  background: var(--white);
  color: var(--brand);
  border: 1px solid rgba(15, 127, 110, .34);
}

.btn-secondary:hover {
  background: var(--brand);
  color: var(--white);
  border-color: var(--brand);
}

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

.btn:disabled {
  opacity: .45;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--white);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  transition: background var(--ease), border-color var(--ease);
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 999px;
  background: var(--text);
  transition: transform var(--ease), opacity var(--ease), background var(--ease);
}

.menu-toggle:hover {
  background: var(--bg-lake);
  border-color: rgba(15, 127, 110, .22);
}

.menu-toggle.open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

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

.menu-toggle.open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.mobile-drawer {
  display: none;
}

.menu-overlay {
  display: none;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 76px 0 46px;
  background: linear-gradient(180deg, var(--bg-lake) 0%, rgba(243, 248, 246, .45) 62%, var(--bg) 100%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(15, 127, 110, .13) 1px, transparent 1px);
  background-size: 22px 22px;
  opacity: .36;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 18%, #000 82%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 18%, #000 82%, transparent);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  align-items: center;
  gap: 56px;
}

.eyebrow,
.section-kicker {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(15, 127, 110, .09);
  color: var(--brand);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .04em;
  line-height: 1.4;
}

.eyebrow {
  margin-bottom: 18px;
}

.section-kicker {
  margin-bottom: 12px;
}

.section-kicker.light {
  background: rgba(255, 255, 255, .16);
  color: var(--white);
}

.hero-copy h1 {
  max-width: 720px;
  margin: 0;
  color: var(--text);
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 800;
  letter-spacing: -.01em;
  line-height: 1.2;
}

.hero-subtitle {
  max-width: 620px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.85;
}

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

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.hero-points li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
}

.hero-points li::before {
  content: "";
  width: 8px;
  height: 8px;
  flex: 0 0 8px;
  border-radius: 50%;
  background: var(--brand-light);
  box-shadow: 0 0 0 4px rgba(53, 185, 156, .1);
}

.hero-visual {
  position: relative;
  padding: 18px 0 18px 18px;
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 34px;
  background: linear-gradient(135deg, rgba(15, 127, 110, .2), rgba(53, 185, 156, .08));
  transform: translate(18px, 18px) rotate(1.5deg);
  pointer-events: none;
}

.hero-image-wrap {
  position: relative;
  z-index: 1;
  overflow: hidden;
  aspect-ratio: 4 / 3.4;
  border-radius: 30px;
  background: var(--white);
  box-shadow: 0 22px 54px rgba(10, 90, 79, .16);
}

.hero-image-wrap img {
  width: 100%;
  height: 100%;
}

.hero-image-wrap::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 32%;
  background: linear-gradient(180deg, transparent, rgba(10, 90, 79, .22));
  pointer-events: none;
}

.floating-card {
  position: absolute;
  z-index: 2;
  left: 0;
  bottom: 0;
  min-width: 196px;
  padding: 16px 20px;
  border: 1px solid rgba(15, 127, 110, .12);
  border-radius: 18px;
  background: rgba(255, 255, 255, .96);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.floating-label {
  color: var(--brand);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .05em;
}

.floating-card strong {
  color: var(--text);
  font-size: 17px;
  line-height: 1.4;
}

.floating-card span:last-child {
  color: var(--muted);
  font-size: 12px;
}

.stats-band {
  padding: 0 0 72px;
}

.stats-wrap {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.stat-item {
  padding: 24px 26px;
  min-height: 112px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.stat-item:not(:last-child) {
  border-right: 1px solid var(--border);
}

.stat-number {
  display: flex;
  align-items: baseline;
  gap: 5px;
  color: var(--brand);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.stat-number strong {
  font-size: 34px;
  font-weight: 800;
  letter-spacing: -.02em;
}

.stat-number small {
  color: var(--brand);
  font-size: 14px;
  font-weight: 700;
}

.stat-item p {
  margin: 9px 0 0;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.5;
}

.section {
  padding: 80px 0;
}

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

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 36px;
}

.section-head h2 {
  margin: 0;
  color: var(--text);
  font-size: clamp(24px, 2.6vw, 32px);
  font-weight: 800;
  letter-spacing: -.01em;
  line-height: 1.3;
}

.section-subtitle {
  max-width: 440px;
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.section-head .text-link {
  flex: 0 0 auto;
  margin-bottom: 4px;
}

.text-link,
.arrow-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--brand);
  font-size: 14px;
  font-weight: 800;
  line-height: 1.4;
  text-decoration: none;
}

.text-link span,
.arrow-link span {
  transition: transform var(--ease);
}

.text-link:hover,
.arrow-link:hover {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.text-link:hover span,
.arrow-link:hover span {
  transform: translateX(4px);
}

.claim-grid {
  display: grid;
  grid-template-columns: 1.18fr .82fr;
  grid-template-areas:
    "a b"
    "a c";
  gap: 24px;
}

.claim-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 210px;
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}

.claim-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(15, 127, 110, .28);
}

.claim-card.large {
  grid-area: a;
  min-height: 100%;
  padding: 36px;
  background: linear-gradient(135deg, #FFFFFF 0%, #F3F8F6 100%);
}

.claim-card:nth-child(2) {
  grid-area: b;
}

.claim-card:nth-child(3) {
  grid-area: c;
}

.card-index {
  width: 46px;
  height: 46px;
  display: inline-grid;
  place-items: center;
  margin-bottom: 24px;
  border-radius: 15px;
  background: rgba(15, 127, 110, .1);
  color: var(--brand);
  font-size: 14px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.claim-card.large .card-index {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  font-size: 16px;
}

.claim-card h3 {
  margin: 0;
  color: var(--text);
  font-size: 21px;
  font-weight: 800;
  line-height: 1.35;
}

.claim-card.large h3 {
  font-size: 26px;
}

.claim-card p {
  margin: 12px 0 22px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.claim-card .text-link {
  margin-top: auto;
}

.story-grid {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  align-items: center;
  gap: 56px;
}

.story-media {
  position: relative;
}

.story-media img {
  width: 100%;
  aspect-ratio: 4 / 3.2;
  border-radius: var(--radius-xl);
  box-shadow: 0 20px 50px rgba(10, 90, 79, .15);
}

.story-media::after {
  content: "";
  position: absolute;
  right: -18px;
  bottom: -18px;
  width: 38%;
  height: 34%;
  border-radius: 22px;
  background: linear-gradient(135deg, rgba(255, 122, 69, .14), rgba(255, 122, 69, .03));
  z-index: -1;
}

.story-copy h2 {
  margin: 0;
  color: var(--text);
  font-size: clamp(24px, 2.6vw, 32px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -.01em;
}

.story-copy p {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
}

.timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 30px;
  padding-top: 2px;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 18px;
  left: 6%;
  right: 6%;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--brand), rgba(15, 127, 110, .12));
  z-index: 0;
}

.timeline-step {
  position: relative;
  z-index: 1;
}

.step-dot {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 4px solid var(--bg-lake);
  border-radius: 50%;
  background: var(--brand);
  color: var(--white);
  font-size: 13px;
  font-weight: 800;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.timeline-step h3 {
  margin: 10px 0 4px;
  color: var(--text);
  font-size: 15px;
  font-weight: 800;
  line-height: 1.4;
}

.timeline-step p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.featured-grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  grid-template-rows: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.featured-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}

.featured-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(15, 127, 110, .28);
}

.featured-main {
  grid-row: span 2;
}

.featured-media {
  display: block;
  overflow: hidden;
  background: var(--bg-lake);
}

.featured-main .featured-media {
  flex: 1;
  min-height: 300px;
}

.featured-card:not(.featured-main) .featured-media {
  height: 150px;
  flex: 0 0 150px;
}

.featured-media img {
  width: 100%;
  height: 100%;
  transition: transform 360ms ease;
}

.featured-card:hover .featured-media img {
  transform: scale(1.035);
}

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

.featured-main .featured-body {
  padding: 28px;
}

.featured-body .tag {
  align-self: flex-start;
  margin-bottom: 12px;
}

.featured-body h3 {
  margin: 0;
  color: var(--text);
  font-size: 20px;
  font-weight: 800;
  line-height: 1.45;
}

.featured-main .featured-body h3 {
  font-size: 26px;
}

.featured-body h3 a {
  color: inherit;
  text-decoration: none;
}

.featured-body h3 a:hover {
  color: var(--brand);
  text-decoration: none;
}

.featured-body p {
  margin: 10px 0 20px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

.featured-body .arrow-link {
  margin-top: auto;
}

.tag {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 5px 11px;
  border-radius: 999px;
  background: rgba(15, 127, 110, .09);
  color: var(--brand);
  font-size: 12px;
  font-weight: 800;
  line-height: 1.4;
}

.trust-grid {
  display: grid;
  grid-template-columns: .78fr 1.22fr;
  gap: 32px;
  align-items: stretch;
}

.logo-wall {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  align-content: start;
}

.logo-item {
  min-height: 68px;
  display: grid;
  place-items: center;
  padding: 14px 12px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: #87938F;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .04em;
  text-align: center;
  transition: color var(--ease), border-color var(--ease), transform var(--ease);
}

.logo-item:hover {
  color: var(--brand);
  border-color: rgba(15, 127, 110, .26);
  transform: translateY(-2px);
}

.logo-item:last-child {
  grid-column: span 2;
}

.quote-card {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 320px;
  margin: 0;
  padding: 42px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-light) 100%);
  color: var(--white);
  box-shadow: 0 18px 44px rgba(10, 90, 79, .18);
}

.quote-mark {
  position: absolute;
  top: 4px;
  left: 24px;
  color: var(--white);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 128px;
  line-height: 1;
  opacity: .12;
  pointer-events: none;
}

.quote-card p {
  position: relative;
  z-index: 1;
  margin: 0;
  color: var(--white);
  font-size: 21px;
  font-weight: 600;
  line-height: 1.8;
}

.quote-card footer {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-top: 26px;
  color: rgba(255, 255, 255, .76);
  font-size: 14px;
}

.quote-card footer strong {
  color: var(--white);
  font-size: 15px;
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.post-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}

.post-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(15, 127, 110, .28);
}

.post-cover {
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--bg-lake);
}

.post-cover img {
  width: 100%;
  height: 100%;
  transition: transform 360ms ease;
}

.post-card:hover .post-cover img {
  transform: scale(1.035);
}

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

.post-body .tag {
  margin-bottom: 12px;
}

.post-body h3 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin: 0;
  color: var(--text);
  font-size: 19px;
  font-weight: 800;
  line-height: 1.45;
}

.post-body h3 a {
  color: inherit;
  text-decoration: none;
}

.post-body h3 a:hover {
  color: var(--brand);
  text-decoration: none;
}

.post-body p {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin: 10px 0 18px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.post-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
}

.post-meta .arrow-link {
  font-size: 13px;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 54px 24px;
  text-align: center;
  background: var(--white);
  border: 1px dashed rgba(15, 127, 110, .28);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.empty-visual {
  position: relative;
  width: 132px;
  height: 86px;
  margin-bottom: 18px;
  overflow: hidden;
  border-radius: 22px;
  background: linear-gradient(135deg, rgba(15, 127, 110, .1), rgba(53, 185, 156, .04));
}

.empty-visual span {
  position: absolute;
  left: 11%;
  width: 78%;
  height: 2px;
  border-radius: 999px;
  background: rgba(15, 127, 110, .22);
}

.empty-visual span:nth-child(1) { top: 30%; }
.empty-visual span:nth-child(2) { top: 50%; }
.empty-visual span:nth-child(3) { top: 70%; }

.empty-state p {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 15px;
}

.faq-list {
  max-width: 880px;
  margin: 0 auto;
  border-top: 1px solid var(--border);
}

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

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 0;
  color: var(--text);
  font-size: 17px;
  font-weight: 800;
  line-height: 1.6;
  cursor: pointer;
  list-style: none;
  transition: color var(--ease);
}

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

.faq-item summary:hover,
.faq-item[open] summary {
  color: var(--brand);
}

.faq-icon {
  position: relative;
  width: 20px;
  height: 20px;
  flex: 0 0 20px;
  transition: transform var(--ease);
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  border-radius: 999px;
  background: var(--brand);
  transform: translate(-50%, -50%);
}

.faq-icon::before {
  width: 16px;
  height: 2px;
}

.faq-icon::after {
  width: 2px;
  height: 16px;
}

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

.faq-answer {
  max-width: 780px;
  padding: 0 0 24px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
}

.faq-answer p {
  margin: 0;
}

.cta-card {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  align-items: center;
  gap: 42px;
  padding: 48px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-light) 100%);
  box-shadow: 0 20px 50px rgba(10, 90, 79, .2);
}

.cta-card::before {
  content: "";
  position: absolute;
  right: -160px;
  bottom: -270px;
  width: 560px;
  height: 560px;
  border: 86px solid rgba(255, 255, 255, .07);
  border-radius: 50%;
  pointer-events: none;
}

.cta-card::after {
  content: "";
  position: absolute;
  top: -90px;
  left: 36%;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .05);
  pointer-events: none;
}

.cta-copy,
.lead-form {
  position: relative;
  z-index: 1;
}

.cta-copy h2 {
  margin: 0;
  color: var(--white);
  font-size: clamp(24px, 2.6vw, 32px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -.01em;
}

.cta-copy p {
  max-width: 460px;
  margin: 14px 0 0;
  color: rgba(255, 255, 255, .84);
  font-size: 16px;
  line-height: 1.8;
}

.lead-form {
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 20px;
  background: rgba(255, 255, 255, .1);
}

.form-row {
  display: flex;
  gap: 12px;
  align-items: stretch;
}

.form-control {
  width: 100%;
  min-height: 50px;
  padding: 13px 16px;
  border: 2px solid transparent;
  border-radius: var(--radius-input);
  background: var(--white);
  color: var(--text);
  font-size: 15px;
  box-shadow: 0 8px 18px rgba(10, 90, 79, .08);
  transition: border-color var(--ease), box-shadow var(--ease), background var(--ease);
}

.form-control::placeholder {
  color: #95A39F;
}

.form-control:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(15, 127, 110, .16);
}

.form-control.invalid {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(255, 122, 69, .18);
}

.lead-form .btn {
  flex: 0 0 auto;
  min-height: 50px;
}

.form-msg {
  min-height: 20px;
  margin: 10px 0 0;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.5;
}

.form-msg.error {
  color: #FFD6C9;
}

.form-msg.success {
  color: #D9FFF5;
}

.form-note {
  margin: 6px 0 0;
  color: rgba(255, 255, 255, .68);
  font-size: 12px;
  line-height: 1.6;
}

.site-footer {
  padding: 64px 0 24px;
  background: var(--footer);
  color: rgba(255, 255, 255, .72);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr .8fr .8fr 1.1fr;
  gap: 40px;
}

.footer-brand-link {
  margin-bottom: 16px;
  justify-content: flex-start;
}

.site-footer .brand-text {
  color: var(--white);
}

.site-footer .brand-mark {
  color: var(--white);
}

.footer-brand p {
  max-width: 330px;
  margin: 0;
  color: rgba(255, 255, 255, .66);
  font-size: 14px;
  line-height: 1.85;
}

.footer-title {
  margin: 0 0 16px;
  color: var(--white);
  font-size: 15px;
  font-weight: 800;
  line-height: 1.4;
}

.footer-links a {
  display: block;
  padding: 6px 0;
  color: rgba(255, 255, 255, .68);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  transition: color var(--ease), transform var(--ease);
}

.footer-links a:hover {
  color: var(--accent);
  text-decoration: none;
  transform: translateX(3px);
}

.footer-contact p {
  margin: 0 0 8px;
  color: rgba(255, 255, 255, .68);
  font-size: 14px;
  line-height: 1.7;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, .12);
  color: rgba(255, 255, 255, .48);
  font-size: 13px;
}

.footer-bottom p {
  margin: 0;
}

@media (max-width: 1199px) {
  .nav-shell {
    gap: 16px;
  }

  .nav-left,
  .nav-right {
    gap: 12px;
  }

  .nav-link {
    font-size: 14px;
  }

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

  .hero-grid {
    gap: 40px;
  }

  .story-grid {
    gap: 40px;
  }
}

@media (max-width: 991px) {
  .nav-shell {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 68px;
  }

  .nav-left {
    display: none;
  }

  .nav-right .nav-link,
  .nav-right .nav-cta {
    display: none;
  }

  .brand {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    justify-content: center;
  }

  .nav-right {
    margin-left: auto;
  }

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

  .mobile-drawer {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    z-index: 60;
    display: none;
    flex-direction: column;
    padding: 14px 24px 24px;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 18px 38px rgba(11, 43, 37, .12);
  }

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

  .drawer-link {
    display: block;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
    color: var(--text);
    font-size: 15px;
    font-weight: 700;
    text-decoration: none;
  }

  .drawer-link:hover,
  .drawer-link.active {
    color: var(--brand);
    text-decoration: none;
  }

  .drawer-cta {
    width: 100%;
    margin-top: 16px;
  }

  .drawer-note {
    margin: 16px 0 0;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.7;
  }

  .menu-overlay {
    position: fixed;
    inset: 0;
    z-index: 45;
    display: none;
    background: rgba(11, 43, 37, .42);
  }

  .menu-overlay.open {
    display: block;
  }

  .hero {
    padding-top: 56px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-visual {
    max-width: 680px;
    width: 100%;
    margin: 0 auto;
  }

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

  .stat-item {
    border-right: 0 !important;
    border-bottom: 1px solid var(--border);
  }

  .stat-item:nth-child(odd) {
    border-right: 1px solid var(--border) !important;
  }

  .stat-item:nth-last-child(-n+2) {
    border-bottom: 0;
  }

  .claim-grid {
    grid-template-columns: 1fr;
    grid-template-areas:
      "a"
      "b"
      "c";
  }

  .claim-card.large {
    min-height: 260px;
  }

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

  .story-media {
    max-width: 680px;
  }

  .featured-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }

  .featured-main {
    grid-row: auto;
  }

  .featured-main .featured-media {
    flex: 0 0 300px;
    min-height: 300px;
  }

  .featured-card:not(.featured-main) .featured-media {
    height: 220px;
    flex-basis: 220px;
  }

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

  .logo-wall {
    grid-template-columns: repeat(3, 1fr);
  }

  .logo-item:last-child {
    grid-column: auto;
  }

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

  .cta-card {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 40px;
  }

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

@media (max-width: 767px) {
  .container {
    padding: 0 20px;
  }

  .topbar-inner {
    justify-content: center;
    min-height: 42px;
  }

  .topbar p {
    justify-content: center;
    text-align: center;
    font-size: 12px;
  }

  .topbar-close {
    position: absolute;
    right: 14px;
  }

  .hero {
    padding: 46px 0 34px;
  }

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

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

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

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

  .hero-visual {
    padding: 12px 0 12px 12px;
  }

  .hero-image-wrap {
    border-radius: 24px;
  }

  .floating-card {
    left: 0;
    bottom: 0;
    min-width: 174px;
    padding: 13px 16px;
  }

  .stats-band {
    padding-bottom: 56px;
  }

  .stats-wrap {
    grid-template-columns: 1fr;
  }

  .stat-item {
    border-right: 0 !important;
    border-bottom: 1px solid var(--border) !important;
    min-height: 94px;
  }

  .stat-item:last-child {
    border-bottom: 0 !important;
  }

  .section {
    padding: 56px 0;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 28px;
  }

  .section-subtitle {
    max-width: 100%;
  }

  .claim-card,
  .claim-card.large {
    padding: 24px;
    min-height: auto;
  }

  .claim-card.large h3 {
    font-size: 23px;
  }

  .timeline {
    grid-template-columns: repeat(2, 1fr);
    gap: 22px 16px;
  }

  .timeline::before {
    display: none;
  }

  .step-dot {
    border-width: 0;
  }

  .featured-main .featured-media {
    flex-basis: 230px;
    min-height: 230px;
  }

  .featured-main .featured-body h3 {
    font-size: 22px;
  }

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

  .logo-item:last-child {
    grid-column: span 2;
  }

  .quote-card {
    min-height: 280px;
    padding: 28px;
  }

  .quote-card p {
    font-size: 18px;
  }

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

  .cta-card {
    padding: 30px 22px;
    border-radius: 24px;
  }

  .form-row {
    flex-direction: column;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    margin-top: 36px;
  }
}

@media (max-width: 480px) {
  .brand-mark {
    width: 36px;
    height: 36px;
    flex-basis: 36px;
    border-radius: 12px;
  }

  .brand-text {
    font-size: 15px;
  }

  .hero-copy h1 {
    font-size: 29px;
  }

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

  .logo-wall {
    grid-template-columns: 1fr;
  }

  .logo-item:last-child {
    grid-column: auto;
  }

  .featured-card:not(.featured-main) .featured-media {
    height: 190px;
    flex-basis: 190px;
  }

  .quote-card {
    padding: 24px;
  }

  .quote-card p {
    font-size: 17px;
  }

  .faq-item summary {
    font-size: 16px;
    padding: 20px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

/* roulang page: article */
:root{
  --brand:#0F7F6E;
  --brand-deep:#0A5A4F;
  --brand-grad:linear-gradient(135deg,#0F7F6E 0%,#35B99C 100%);
  --accent:#FF7A45;
  --accent-deep:#E96330;
  --bg:#FBF9F5;
  --bg-soft:#F3F8F6;
  --white:#FFFFFF;
  --line:#E3E8E5;
  --ink:#1B2A27;
  --ink-2:#6B7A76;
  --dark:#0B2B25;
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --sh:0 8px 24px rgba(15,127,110,.08);
  --sh-hover:0 14px 36px rgba(15,127,110,.16);
  --max:1200px;
  --font:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.menu-open{overflow:hidden}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.3;color:var(--ink)}
p{margin:0}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,text-decoration-color .2s ease}
a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--bg-soft);border-bottom:1px solid var(--line);font-size:13px;color:var(--ink-2)}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px;padding-top:6px;padding-bottom:6px}
.topbar-left{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.topbar-item{display:inline-flex;align-items:center;gap:7px}
.dot-live{width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(15,127,110,.14);display:inline-block}
.topbar a{color:var(--brand);font-weight:700}
.topbar-close{background:none;border:0;color:var(--ink-2);font-size:13px;padding:2px 6px;border-radius:8px;transition:background .2s,color .2s}
.topbar-close:hover{background:#E7F1EE;color:var(--brand)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(251,249,245,.94);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-stuck{background:#fff;border-bottom-color:var(--line);box-shadow:0 6px 20px rgba(15,127,110,.09)}
.nav-shell{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:18px;
  min-height:78px;
}
.nav-left{display:flex;align-items:center;gap:24px;justify-content:flex-start;flex-wrap:wrap}
.nav-right{display:flex;align-items:center;gap:22px;justify-content:flex-end;flex-wrap:wrap}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--brand-deep);font-weight:800;font-size:18px;letter-spacing:-.01em;white-space:nowrap}
.brand:hover{color:var(--brand-deep);text-decoration:none}
.brand-mark{width:38px;height:38px;display:grid;place-items:center;border-radius:12px;background:var(--bg-soft);color:var(--brand);flex:0 0 auto;transition:transform .25s ease}
.brand:hover .brand-mark{transform:translateY(-2px) rotate(-4deg)}
.brand-mark svg{width:26px;height:26px}
.nav-link{
  position:relative;font-size:15px;font-weight:600;color:var(--ink);
  padding:6px 0;transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover{color:var(--brand);text-decoration:none}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;border:1px solid transparent;
  font-weight:700;font-size:15px;line-height:1;
  padding:14px 26px;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 18px rgba(255,122,69,.28)}
.btn-primary:hover{background:var(--accent-deep);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(255,122,69,.34)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand);color:#fff;transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--brand-deep);border-color:var(--line)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-sm{padding:11px 20px;font-size:14px}
.nav-cta{margin-left:2px}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;padding:0;place-items:center;gap:4px;
}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .25s,opacity .25s}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.menu-toggle{display:none;flex-direction:column;justify-content:center;align-items:center}
.menu-overlay{
  position:fixed;inset:0;background:rgba(11,43,37,.42);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;z-index:95;
}
.menu-overlay.open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;left:0;right:0;top:0;z-index:96;
  background:#fff;border-radius:0 0 24px 24px;
  padding:22px 24px 28px;
  transform:translateY(-110%);transition:transform .3s cubic-bezier(.22,.7,.3,1);
  box-shadow:0 20px 40px rgba(11,43,37,.16);
  display:flex;flex-direction:column;gap:6px;
  max-height:88vh;overflow-y:auto;
}
.mobile-drawer.open{transform:translateY(0)}
.drawer-link{padding:13px 12px;border-radius:12px;color:var(--ink);font-weight:600;font-size:16px;transition:background .2s,color .2s}
.drawer-link:hover{background:var(--bg-soft);color:var(--brand);text-decoration:none}
.drawer-link.active{background:var(--bg-soft);color:var(--brand)}
.drawer-cta{margin-top:10px;width:100%}
.drawer-note{margin-top:10px;font-size:13px;color:var(--ink-2);line-height:1.7}

/* ============ 阅读进度 ============ */
.page-progress{position:fixed;left:0;top:0;height:3px;width:100%;background:transparent;z-index:120;pointer-events:none}
.page-progress span{display:block;height:100%;width:0;background:var(--brand-grad);border-radius:0 3px 3px 0;transition:width .1s linear}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;overflow:hidden;
  padding:38px 0 46px;
  background:
    radial-gradient(900px 320px at 88% -30%,rgba(53,185,156,.22),transparent 70%),
    linear-gradient(180deg,#F3F8F6 0%,#FBF9F5 100%);
  border-bottom:1px solid var(--line);
}
.article-hero::after{
  content:"";position:absolute;inset:auto -60px -70px auto;width:420px;height:220px;
  background:url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  opacity:.14;border-radius:50% 50% 0 0;pointer-events:none;
}
.breadcrumb{position:relative;display:flex;align-items:center;gap:9px;flex-wrap:wrap;font-size:13.5px;color:var(--ink-2);margin-bottom:22px}
.breadcrumb a{color:var(--ink-2);font-weight:600}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#BFCBC7}
.breadcrumb .current{color:#93A29E;max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pill{
  display:inline-flex;align-items:center;gap:7px;
  background:#EAF5F1;color:var(--brand-deep);
  border:1px solid #D6EAE4;border-radius:999px;
  padding:6px 15px;font-size:13px;font-weight:700;letter-spacing:.01em;
}
.article-title{
  position:relative;
  margin:18px 0 0;
  font-size:clamp(28px,3.6vw,44px);
  line-height:1.28;
  max-width:22ch;
  color:var(--ink);
}
.article-meta{
  position:relative;
  display:flex;align-items:center;flex-wrap:wrap;gap:10px 26px;
  margin-top:24px;padding-top:18px;
  border-top:1px solid rgba(15,127,110,.14);
  font-size:13.5px;color:var(--ink-2);
  font-variant-numeric:tabular-nums;
}
.article-meta em{font-style:normal;font-weight:800;color:var(--brand)}
.article-meta .meta-key{color:#93A29E;margin-right:6px}

/* ============ 正文布局 ============ */
.article-section{padding:56px 0 72px}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,760px) 280px;
  gap:56px;
  align-items:start;
  justify-content:center;
}
.article-body{
  font-size:16.5px;line-height:1.9;color:#25332F;
  min-width:0;
  word-break:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;
  margin:2.1em 0 .8em;
  padding-left:16px;
  font-size:clamp(21px,2.2vw,27px);
  font-weight:800;
  line-height:1.45;
  scroll-margin-top:100px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:4px;
  background:var(--brand-grad);
}
.article-body h3{
  margin:1.7em 0 .6em;
  font-size:19.5px;color:var(--brand-deep);font-weight:800;
  scroll-margin-top:100px;
}
.article-body h4{margin:1.4em 0 .5em;font-size:17px;color:var(--ink)}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.35em}
.article-body li{margin-bottom:.55em}
.article-body ul li::marker{color:var(--brand)}
.article-body ol li::marker{color:var(--brand);font-weight:800}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;
  background:var(--bg-soft);
  border-left:4px solid var(--accent);
  border-radius:0 14px 14px 0;
  color:#2E3E3A;font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:20px;margin:1.6em 0;box-shadow:var(--sh);height:auto}
.article-body figure{margin:1.7em 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--ink-2);margin-top:.7em}
.article-body a{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px;font-weight:600}
.article-body strong{font-weight:800;color:var(--ink)}
.article-body hr{border:0;border-top:1px dashed var(--line);margin:2.2em 0}
.article-body table{
  display:block;overflow-x:auto;width:100%;
  border-collapse:collapse;margin:1.6em 0;font-size:15px;
  border-radius:14px;
}
.article-body table th,.article-body table td{
  border:1px solid var(--line);padding:11px 14px;text-align:left;white-space:nowrap;
}
.article-body table th{background:var(--bg-soft);color:var(--brand-deep);font-weight:800}
.article-body table tbody tr:nth-child(even){background:#FAFCFB}
.article-body pre{
  background:#F4F6F5;border:1px solid var(--line);border-radius:14px;
  padding:16px 18px;overflow-x:auto;font-size:14px;line-height:1.7;margin:1.6em 0;
}
.article-body code{background:#EFF5F3;color:var(--brand-deep);padding:.15em .45em;border-radius:6px;font-size:.92em}
.article-body pre code{background:none;padding:0;color:inherit}
.empty-state{
  background:#fff;border:1px dashed #CBDDD7;border-radius:var(--r-lg);
  padding:48px 32px;text-align:center;box-shadow:var(--sh);
}
.empty-state h2{font-size:23px;margin-bottom:12px;padding-left:0}
.empty-state h2::before{display:none}
.empty-state p{color:var(--ink-2);max-width:46ch;margin:0 auto 24px}

/* 侧栏目录 */
.article-aside{position:sticky;top:104px;display:flex;flex-direction:column;gap:22px}
.toc-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px 22px 18px;box-shadow:var(--sh);
}
.toc-title{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:800;color:var(--brand-deep);letter-spacing:.04em;margin-bottom:14px}
.toc-title::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent)}
.toc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;max-height:52vh;overflow-y:auto}
.toc-list li{margin:0}
.toc-list a{
  display:block;padding:7px 10px;border-radius:10px;font-size:13.5px;color:var(--ink-2);
  border-left:2px solid transparent;line-height:1.55;
}
.toc-list a:hover{background:var(--bg-soft);color:var(--brand);text-decoration:none}
.toc-list a.lv3{padding-left:22px;font-size:13px}
.toc-list a.active{color:var(--brand-deep);background:var(--bg-soft);border-left-color:var(--accent);font-weight:700}
.toc-empty{font-size:13px;color:var(--ink-2)}
.aside-cta{
  background:var(--brand-grad);color:#fff;border-radius:var(--r-lg);
  padding:24px 22px;box-shadow:0 14px 30px rgba(15,127,110,.22);
}
.aside-cta h3{color:#fff;font-size:17px;margin-bottom:8px}
.aside-cta p{font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.88);margin-bottom:16px}
.aside-cta .btn{width:100%;background:#fff;color:var(--brand-deep);box-shadow:none}
.aside-cta .btn:hover{background:#F2FBF8;color:var(--brand-deep);transform:translateY(-2px)}
.toc-mobile-btn{display:none}

/* ============ 标签 / 翻页 ============ */
.article-foot{margin-top:44px;padding-top:26px;border-top:1px solid var(--line)}
.tag-list{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  background:#fff;border:1px solid var(--line);color:var(--ink-2);
  padding:7px 15px;border-radius:999px;font-size:13px;font-weight:600;
  transition:border-color .2s,color .2s,transform .2s,box-shadow .2s;
}
.tag:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh);text-decoration:none}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px}
.post-nav a{
  display:flex;flex-direction:column;gap:6px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px 20px;box-shadow:var(--sh);transition:transform .22s,box-shadow .22s,border-color .22s;
}
.post-nav a:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#CBE5DD;text-decoration:none}
.post-nav span{font-size:12.5px;color:var(--ink-2);letter-spacing:.06em}
.post-nav strong{font-size:15px;color:var(--ink);font-weight:700}
.post-nav a:hover strong{color:var(--brand)}
.post-nav .align-end{text-align:right;align-items:flex-end}

/* ============ 通用板块 ============ */
.section{padding:76px 0}
.section-soft{background:var(--bg-soft)}
.section-head{max-width:720px;margin-bottom:40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:800;letter-spacing:.12em;color:var(--brand);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--accent)}
.section-head h2{font-size:clamp(23px,2.6vw,32px);margin-bottom:12px}
.section-head p{color:var(--ink-2);font-size:15.5px;line-height:1.85}

/* 相关推荐 */
.related-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr;gap:24px}
.rel-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#CBE5DD;text-decoration:none}
.rel-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#E9F2EF}
.rel-card:first-child .rel-thumb{aspect-ratio:16/9}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.05)}
.rel-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:9px;flex:1}
.rel-body .chip{align-self:flex-start;background:#EAF5F1;color:var(--brand-deep);font-size:12px;font-weight:800;padding:5px 12px;border-radius:999px;letter-spacing:.02em}
.rel-body h3{font-size:17.5px;line-height:1.5;color:var(--ink)}
.rel-card:hover .rel-body h3{color:var(--brand-deep)}
.rel-body p{font-size:14px;color:var(--ink-2);line-height:1.75}
.rel-more{margin-top:auto;padding-top:8px;font-size:13.5px;font-weight:800;color:var(--accent);display:inline-flex;align-items:center;gap:6px}
.rel-more::after{content:"→";transition:transform .2s ease}
.rel-card:hover .rel-more::after{transform:translateX(4px)}

/* CTA 窄条 */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--brand-grad);
  border-radius:28px;
  padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 18px 44px rgba(15,127,110,.24);
  color:#fff;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-90px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.24),transparent 68%);
}
.cta-band h2{color:#fff;font-size:clamp(21px,2.3vw,28px);margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.9);font-size:15px;max-width:52ch}
.cta-band .btn{position:relative;background:#fff;color:var(--brand-deep);box-shadow:0 10px 24px rgba(0,0,0,.14);flex:0 0 auto}
.cta-band .btn:hover{background:#F2FBF8;color:var(--brand-deep);transform:translateY(-2px)}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh);overflow:hidden;transition:border-color .2s,box-shadow .2s}
.faq-item.open{border-color:#CBE5DD;box-shadow:var(--sh-hover)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:none;border:0;padding:20px 24px;text-align:left;
  font-size:16px;font-weight:800;color:var(--ink);line-height:1.6;
}
.faq-q:hover{color:var(--brand)}
.faq-icon{position:relative;flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--bg-soft);transition:transform .3s ease,background .2s ease}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:12px;height:2px}
.faq-icon::after{width:2px;height:12px;transition:opacity .25s ease}
.faq-item.open .faq-icon{transform:rotate(45deg);background:#FFEDE5}
.faq-item.open .faq-icon::before,.faq-item.open .faq-icon::after{background:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a p{padding:0 24px 22px;font-size:15px;color:var(--ink-2);line-height:1.85;margin:0}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.76);margin-top:8px}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;
  padding:64px 0 44px;
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;margin-bottom:16px}
.footer-brand:hover{color:#fff;text-decoration:none}
.footer-brand .brand-mark{background:rgba(255,255,255,.1);color:#7FE0C7}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:34ch}
.footer-col h4{color:#fff;font-size:14px;letter-spacing:.08em;font-weight:800;margin-bottom:18px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:11px}
.footer-col a{color:rgba(255,255,255,.68);font-size:14px}
.footer-col a:hover{color:#7FE0C7;text-decoration:none}
.footer-note{font-size:13px;line-height:1.8;color:rgba(255,255,255,.58);margin-top:12px}
.footer-form{display:flex;gap:10px;margin-top:14px}
.footer-form input{
  flex:1;min-width:0;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
  border-radius:12px;padding:12px 14px;color:#fff;font-size:14px;font-family:inherit;
  transition:border-color .2s,background .2s,box-shadow .2s;
}
.footer-form input::placeholder{color:rgba(255,255,255,.4)}
.footer-form input:focus{outline:none;border-color:#7FE0C7;background:rgba(255,255,255,.12);box-shadow:0 0 0 3px rgba(127,224,199,.18)}
.footer-form button{
  border:0;border-radius:12px;background:var(--accent);color:#fff;font-weight:800;font-size:14px;
  padding:12px 20px;transition:background .2s,transform .2s;
}
.footer-form button:hover{background:var(--accent-deep);transform:translateY(-2px)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.62)}
.footer-bottom a:hover{color:#7FE0C7}

/* 淡入 */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 250px;gap:36px}
  .related-grid{grid-template-columns:1.2fr 1fr 1fr;gap:20px}
}
@media (max-width:991px){
  .nav-left,.nav-right .nav-link,.nav-right .nav-cta{display:none}
  .menu-toggle{display:flex}
  .nav-shell{grid-template-columns:auto 1fr auto;min-height:70px}
  .nav-left{display:none}
  .brand{justify-self:start;font-size:16.5px}
  .nav-right{justify-content:flex-end;gap:10px}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-aside{display:none}
  .toc-mobile-btn{
    display:inline-flex;align-items:center;gap:8px;
    background:#fff;border:1px solid var(--line);border-radius:999px;
    padding:10px 18px;font-size:14px;font-weight:700;color:var(--brand-deep);
    box-shadow:var(--sh);margin-bottom:26px;
  }
  .related-grid{grid-template-columns:1fr 1fr}
  .related-grid .rel-card:first-child{grid-column:1 / -1}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;padding:52px 0 36px}
  .cta-band{flex-direction:column;align-items:flex-start;text-align:left;padding:36px 30px}
  .section{padding:60px 0}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .topbar .container{min-height:auto;padding-top:8px;padding-bottom:8px}
  .topbar-left{gap:12px;font-size:12.5px}
  .article-hero{padding:26px 0 34px}
  .article-title{max-width:none}
  .article-meta{gap:8px 18px;font-size:13px}
  .article-section{padding:40px 0 56px}
  .related-grid{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .post-nav .align-end{text-align:left;align-items:flex-start}
  .faq-q{padding:16px 18px;font-size:15px}
  .faq-a p{padding:0 18px 18px;font-size:14.5px}
  .section-head{margin-bottom:28px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:519px){
  .brand-text{font-size:15px;letter-spacing:0}
  .brand-mark{width:34px;height:34px}
  .brand-mark svg{width:22px;height:22px}
  .btn{padding:12px 20px;font-size:14.5px}
  .cta-band{padding:28px 22px;border-radius:22px}
  .empty-state{padding:34px 20px}
  .footer-form{flex-direction:column}
  .footer-form button{width:100%}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
  --c-primary:#0F7F6E;
  --c-primary-deep:#0A5A4F;
  --c-primary-soft:#35B99C;
  --c-accent:#FF7A45;
  --c-accent-deep:#EF6A35;
  --bg:#FBF9F5;
  --bg-lake:#F3F8F6;
  --white:#FFFFFF;
  --line:#E3E8E5;
  --ink:#1B2A27;
  --ink-2:#6B7A76;
  --ink-3:#93A19C;
  --footer-bg:#0B2B25;
  --grad:linear-gradient(135deg,#0F7F6E 0%,#35B99C 100%);
  --grad-soft:linear-gradient(135deg,rgba(15,127,110,.10) 0%,rgba(53,185,156,.14) 100%);
  --r-xl:24px;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --shadow:0 8px 24px rgba(15,127,110,.08);
  --shadow-hover:0 14px 36px rgba(15,127,110,.16);
  --container:1200px;
  --ease:220ms ease;
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease),background-color var(--ease);}
a:hover{color:var(--c-accent);}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;}
input,textarea{font-family:inherit;font-size:inherit;}
::selection{background:rgba(53,185,156,.28);color:var(--c-primary-deep);}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px;}

/* ============ 布局容器与通用 ============ */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.section{padding:88px 0;}
.section--lake{background:var(--bg-lake);}
.section--white{background:var(--white);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:28px;
  margin-bottom:42px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:rgba(15,127,110,.09);
  color:var(--c-primary);
  font-size:13px;
  font-weight:700;
  letter-spacing:.02em;
  margin-bottom:16px;
}
.eyebrow::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--c-accent);
}
.h2{
  font-size:clamp(24px,2.6vw,32px);
  line-height:1.35;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--ink);
}
.h3{
  font-size:20px;
  line-height:1.5;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--ink);
}
.lead{
  color:var(--ink-2);
  font-size:16px;
  line-height:1.85;
  margin-top:12px;
  max-width:620px;
}
.num{font-variant-numeric:tabular-nums;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:999px;
  font-weight:700;
  font-size:15px;
  line-height:1.2;
  white-space:nowrap;
  transition:transform var(--ease),background-color var(--ease),color var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.btn:active{transform:translateY(1px);}
.btn-primary{
  background:var(--c-accent);
  color:#fff;
  box-shadow:0 10px 24px rgba(255,122,69,.28);
}
.btn-primary:hover{
  background:var(--c-accent-deep);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 14px 30px rgba(255,122,69,.34);
}
.btn-ghost{
  background:#fff;
  color:var(--c-primary);
  border:1px solid var(--c-primary);
}
.btn-ghost:hover{
  background:var(--c-primary);
  color:#fff;
  transform:translateY(-2px);
}
.btn-light{
  background:rgba(255,255,255,.14);
  color:#fff;
  border:1px solid rgba(255,255,255,.45);
  backdrop-filter:blur(4px);
}
.btn-light:hover{
  background:#fff;
  color:var(--c-primary-deep);
  transform:translateY(-2px);
}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-weight:700;
  font-size:14.5px;
  color:var(--c-primary);
}
.link-arrow span{transition:transform var(--ease);display:inline-block;}
.link-arrow:hover{color:var(--c-accent);}
.link-arrow:hover span{transform:translateX(4px);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-stuck{box-shadow:0 10px 26px rgba(11,43,37,.08);}
.nav-shell{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  min-height:76px;
}
.nav-left{display:flex;align-items:center;gap:4px;justify-self:start;}
.nav-right{display:flex;align-items:center;gap:8px;justify-self:end;}
.nav-link{
  position:relative;
  padding:9px 13px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  color:var(--ink-2);
  transition:color var(--ease),background-color var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:13px;right:13px;bottom:3px;
  height:2px;
  border-radius:2px;
  background:var(--c-accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--ease);
}
.nav-link:hover{color:var(--c-primary);background:var(--bg-lake);}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--c-primary-deep);}
.nav-cta{margin-left:6px;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  justify-self:center;
  color:var(--c-primary-deep);
  font-weight:800;
  font-size:18px;
  letter-spacing:-.01em;
  padding:6px 10px;
  border-radius:14px;
  transition:background-color var(--ease);
}
.brand:hover{background:var(--bg-lake);color:var(--c-primary-deep);}
.brand-mark{
  width:40px;height:40px;
  display:grid;place-items:center;
  border-radius:13px;
  background:var(--grad);
  color:#fff;
  box-shadow:0 8px 18px rgba(15,127,110,.24);
  flex:0 0 auto;
}
.brand-mark svg{width:26px;height:26px;}
.brand-text{white-space:nowrap;}
.menu-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  padding:0;
  place-items:center;
  gap:4px;
}
.menu-toggle span{
  display:block;
  width:19px;height:2px;
  border-radius:2px;
  background:var(--c-primary-deep);
  transition:transform var(--ease),opacity var(--ease);
}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.menu-overlay{
  position:fixed;
  inset:0;
  background:rgba(11,43,37,.42);
  opacity:0;
  visibility:hidden;
  transition:opacity var(--ease),visibility var(--ease);
  z-index:90;
}
.menu-overlay.open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;
  top:0;left:0;right:0;
  z-index:100;
  background:#fff;
  padding:22px 24px 28px;
  border-bottom-left-radius:var(--r-xl);
  border-bottom-right-radius:var(--r-xl);
  box-shadow:0 24px 48px rgba(11,43,37,.18);
  transform:translateY(-14px);
  opacity:0;
  visibility:hidden;
  transition:transform var(--ease),opacity var(--ease),visibility var(--ease);
}
.mobile-drawer.open{transform:translateY(0);opacity:1;visibility:visible;}
.drawer-link{
  display:block;
  padding:13px 14px;
  border-radius:var(--r-sm);
  font-weight:600;
  color:var(--ink-2);
}
.drawer-link:hover,.drawer-link.active{background:var(--bg-lake);color:var(--c-primary-deep);}
.drawer-cta{width:100%;margin-top:12px;}
.drawer-note{
  margin-top:14px;
  font-size:13px;
  color:var(--ink-3);
  line-height:1.7;
}

/* ============ 分类首屏 ============ */
.cat-hero{
  position:relative;
  overflow:hidden;
  background:var(--grad);
  color:#fff;
  padding:74px 0 78px;
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.35) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.22;
  pointer-events:none;
}
.cat-hero::after{
  content:"";
  position:absolute;
  right:-140px;bottom:-180px;
  width:520px;height:520px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.28);
  box-shadow:0 0 0 60px rgba(255,255,255,.06),0 0 0 140px rgba(255,255,255,.04);
  pointer-events:none;
}
.cat-hero-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:56px;
  align-items:center;
}
.crumbs{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:rgba(255,255,255,.82);
  margin-bottom:18px;
}
.crumbs a{color:rgba(255,255,255,.9);}
.crumbs a:hover{color:#fff;}
.crumbs .sep{opacity:.6;}
.crumbs .now{color:#fff;font-weight:600;}
.cat-hero .eyebrow{
  background:rgba(255,255,255,.18);
  color:#fff;
}
.cat-hero .eyebrow::before{background:#FFD7C6;}
.cat-hero h1{
  font-size:clamp(28px,3.8vw,44px);
  line-height:1.28;
  font-weight:800;
  letter-spacing:-.01em;
}
.cat-hero h1 em{
  font-style:normal;
  color:#FFD7C6;
}
.cat-hero-lead{
  margin-top:18px;
  font-size:17px;
  line-height:1.85;
  color:rgba(255,255,255,.9);
  max-width:560px;
}
.cat-hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:30px;
}
.cat-hero-badges{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:38px;
}
.mini-badge{
  display:flex;
  align-items:baseline;
  gap:8px;
  padding:10px 18px;
  border-radius:999px;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.34);
  font-size:13.5px;
  color:rgba(255,255,255,.94);
}
.mini-badge b{
  font-size:21px;
  font-weight:800;
  color:#fff;
  letter-spacing:-.02em;
}
.hero-visual{
  position:relative;
  border-radius:var(--r-xl);
  overflow:hidden;
  box-shadow:0 26px 50px rgba(6,44,38,.32);
  border:1px solid rgba(255,255,255,.4);
  background:#0A5A4F;
}
.hero-visual img{
  width:100%;
  height:340px;
  object-fit:cover;
  opacity:.95;
}
.hero-visual-tag{
  position:absolute;
  left:18px;bottom:18px;
  padding:9px 16px;
  border-radius:999px;
  background:rgba(255,255,255,.94);
  color:var(--c-primary-deep);
  font-size:13px;
  font-weight:700;
  box-shadow:0 10px 22px rgba(6,44,38,.2);
}

/* ============ 左图右文列表 ============ */
.split-list{display:grid;gap:26px;}
.split-item{
  display:grid;
  grid-template-columns:320px 1fr;
  gap:34px;
  align-items:center;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  padding:22px;
  box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.split-item:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(15,127,110,.32);
}
.split-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  background:var(--bg-lake);
}
.split-media img{
  width:100%;
  height:216px;
  object-fit:cover;
  transition:transform 500ms ease;
}
.split-item:hover .split-media img{transform:scale(1.04);}
.split-body h3{margin-bottom:10px;}
.split-body p{color:var(--ink-2);font-size:15.5px;line-height:1.85;}
.point-list{
  display:grid;
  gap:8px;
  margin-top:16px;
}
.point-list li{
  position:relative;
  padding-left:24px;
  font-size:14.5px;
  color:var(--ink-2);
  line-height:1.75;
}
.point-list li::before{
  content:"";
  position:absolute;
  left:2px;top:9px;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--c-accent);
  opacity:.85;
}
.step-no{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;height:34px;
  border-radius:12px;
  background:var(--grad-soft);
  color:var(--c-primary-deep);
  font-weight:800;
  font-size:15px;
  margin-bottom:12px;
  font-variant-numeric:tabular-nums;
}

/* ============ 流程步骤条 ============ */
.flow{
  position:relative;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:22px;
}
.flow::before{
  content:"";
  position:absolute;
  top:26px;left:8%;right:8%;
  height:2px;
  background:repeating-linear-gradient(90deg,rgba(15,127,110,.32) 0 10px,transparent 10px 18px);
  z-index:0;
}
.flow-step{
  position:relative;
  z-index:1;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:22px 20px 24px;
  box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.flow-step:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(15,127,110,.3);
}
.flow-dot{
  width:52px;height:52px;
  border-radius:50%;
  display:grid;place-items:center;
  background:var(--grad);
  color:#fff;
  font-weight:800;
  font-size:17px;
  margin-bottom:16px;
  box-shadow:0 10px 22px rgba(15,127,110,.22);
  font-variant-numeric:tabular-nums;
}
.flow-step h3{font-size:17px;margin-bottom:8px;}
.flow-step p{font-size:14.5px;color:var(--ink-2);line-height:1.8;}

/* ============ 要点清单 ============ */
.check-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:18px;
}
.check-item{
  display:flex;
  gap:14px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:20px 22px;
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.check-item:hover{
  border-color:rgba(15,127,110,.34);
  transform:translateY(-3px);
  box-shadow:var(--shadow);
}
.check-icon{
  flex:0 0 auto;
  width:30px;height:30px;
  border-radius:10px;
  display:grid;place-items:center;
  background:rgba(15,127,110,.1);
  color:var(--c-primary);
  font-weight:800;
  font-size:15px;
}
.check-item h3{font-size:16px;margin-bottom:6px;}
.check-item p{font-size:14.5px;color:var(--ink-2);line-height:1.8;}

/* ============ FAQ ============ */
.faq-wrap{display:grid;gap:14px;max-width:900px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item:hover{border-color:rgba(15,127,110,.3);box-shadow:var(--shadow);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 58px 20px 22px;
  position:relative;
  font-weight:700;
  font-size:16px;
  color:var(--ink);
  line-height:1.65;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  position:absolute;
  right:20px;top:50%;
  transform:translateY(-50%) rotate(0deg);
  width:26px;height:26px;
  display:grid;place-items:center;
  border-radius:50%;
  background:var(--bg-lake);
  color:var(--c-primary);
  font-weight:700;
  font-size:17px;
  line-height:1;
  transition:transform var(--ease),background-color var(--ease),color var(--ease);
}
.faq-item[open] summary::after{
  transform:translateY(-50%) rotate(45deg);
  background:var(--c-accent);
  color:#fff;
}
.faq-item[open] summary{color:var(--c-primary-deep);}
.faq-answer{
  padding:0 58px 22px 22px;
  font-size:15px;
  line-height:1.9;
  color:var(--ink-2);
  border-top:1px dashed var(--line);
  margin-top:-2px;
  padding-top:16px;
}

/* ============ 交叉链接卡 ============ */
.cross-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.cross-card{
  display:block;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  padding:28px 26px;
  box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.cross-card:hover{
  transform:translateY(-5px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(15,127,110,.34);
  color:inherit;
}
.tag{
  display:inline-block;
  padding:5px 13px;
  border-radius:999px;
  background:rgba(15,127,110,.09);
  color:var(--c-primary);
  font-size:12.5px;
  font-weight:700;
  margin-bottom:14px;
}
.cross-card h3{font-size:18px;margin-bottom:10px;}
.cross-card p{font-size:14.5px;color:var(--ink-2);line-height:1.8;margin-bottom:16px;}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--grad);
  border-radius:var(--r-xl);
  padding:46px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  color:#fff;
  box-shadow:0 22px 46px rgba(15,127,110,.24);
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.4) 1px,transparent 1px);
  background-size:20px 20px;
  opacity:.18;
  pointer-events:none;
}
.cta-band-text{position:relative;z-index:1;max-width:640px;}
.cta-band h2{
  font-size:clamp(21px,2.4vw,28px);
  font-weight:800;
  line-height:1.4;
  letter-spacing:-.01em;
}
.cta-band p{
  margin-top:10px;
  font-size:15px;
  color:rgba(255,255,255,.9);
  line-height:1.8;
}
.cta-band-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--footer-bg);
  color:rgba(255,255,255,.74);
  padding:70px 0 0;
  margin-top:96px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:44px;
  padding-bottom:52px;
}
.footer-brand .brand{
  justify-self:start;
  color:#fff;
  font-size:18px;
  padding-left:0;
}
.footer-brand .brand:hover{background:transparent;color:#fff;}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  line-height:1.9;
  color:rgba(255,255,255,.66);
  max-width:320px;
}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  color:#fff;
  margin-bottom:18px;
  letter-spacing:.02em;
}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{
  color:rgba(255,255,255,.68);
  font-size:14px;
  transition:color var(--ease),padding-left var(--ease);
}
.footer-col a:hover{color:#FFB79B;padding-left:4px;}
.footer-contact p{
  font-size:14px;
  line-height:1.9;
  color:rgba(255,255,255,.68);
  margin-bottom:10px;
}
.footer-contact strong{color:#fff;font-weight:700;}
.footer-form{
  display:flex;
  gap:8px;
  margin-top:16px;
}
.footer-form input{
  flex:1;
  min-width:0;
  padding:11px 14px;
  border-radius:var(--r-sm);
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.07);
  color:#fff;
  font-size:14px;
  transition:border-color var(--ease),background-color var(--ease),box-shadow var(--ease);
}
.footer-form input::placeholder{color:rgba(255,255,255,.44);}
.footer-form input:focus{
  outline:none;
  border-color:var(--c-primary-soft);
  background:rgba(255,255,255,.12);
  box-shadow:0 0 0 2px rgba(53,185,156,.35);
}
.footer-form button{
  padding:11px 18px;
  border-radius:var(--r-sm);
  background:var(--c-accent);
  color:#fff;
  font-weight:700;
  font-size:14px;
  transition:background-color var(--ease),transform var(--ease);
}
.footer-form button:hover{background:var(--c-accent-deep);transform:translateY(-1px);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.52);
}

/* ============ 动效 ============ */
html.js .reveal{
  opacity:0;
  transform:translateY(18px);
  transition:opacity 620ms ease,transform 620ms ease;
}
html.js .reveal.visible{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .cat-hero-grid{gap:40px;}
  .split-item{grid-template-columns:280px 1fr;gap:26px;}
  .split-media img{height:200px;}
  .footer-grid{gap:34px;}
}
@media (max-width:991px){
  .nav-left,.nav-right{display:none;}
  .nav-shell{grid-template-columns:1fr auto 1fr;min-height:68px;}
  .brand{justify-self:start;font-size:17px;}
  .menu-toggle{display:grid;justify-self:end;}
  .site-header .nav-right .menu-toggle{display:grid;}
  .nav-shell > .menu-toggle{display:grid;}
  .cat-hero{padding:56px 0 60px;}
  .cat-hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual img{height:280px;}
  .split-item{grid-template-columns:1fr;gap:20px;}
  .split-media img{height:230px;}
  .flow{grid-template-columns:repeat(2,1fr);}
  .flow::before{display:none;}
  .check-grid{grid-template-columns:1fr;}
  .cross-grid{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .section{padding:64px 0;}
  .site-footer{margin-top:72px;}
}
@media (max-width:767px){
  .container{padding-left:18px;padding-right:18px;}
  .nav-shell{grid-template-columns:auto 1fr auto;gap:8px;}
  .brand{font-size:15.5px;gap:8px;padding:4px 6px;justify-self:center;}
  .brand-mark{width:34px;height:34px;border-radius:11px;}
  .brand-mark svg{width:22px;height:22px;}
  .brand-text{max-width:9em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
  .section{padding:52px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:30px;}
  .cat-hero h1{font-size:26px;}
  .cat-hero-lead{font-size:15.5px;}
  .cat-hero-actions .btn{flex:1 1 100%;}
  .cat-hero-badges{gap:10px;margin-top:28px;}
  .mini-badge{padding:8px 14px;font-size:12.5px;}
  .mini-badge b{font-size:18px;}
  .flow{grid-template-columns:1fr;}
  .split-item{padding:16px;}
  .split-media img{height:190px;}
  .faq-item summary{padding:16px 50px 16px 18px;font-size:15px;}
  .faq-answer{padding:0 18px 18px;padding-top:14px;font-size:14.5px;}
  .cta-band{padding:28px 22px;border-radius:var(--r-lg);}
  .cta-band-actions .btn{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .site-footer{padding-top:52px;margin-top:60px;}
}
@media (max-width:480px){
  .brand-text{max-width:7.4em;}
  .hero-visual img{height:170px;}
  .cat-hero{padding:44px 0 48px;}
  .check-item{padding:16px 16px;}
  .cross-card{padding:22px 20px;}
  .footer-form{flex-direction:column;}
  .footer-form button{width:100%;}
}

/* roulang page: category2 */
:root{
  --brand:#0F7F6E;
  --brand-deep:#0A5A4F;
  --brand-light:#35B99C;
  --accent:#FF7A45;
  --accent-deep:#E8663A;
  --bg:#FBF9F5;
  --bg-lake:#F3F8F6;
  --white:#FFFFFF;
  --line:#E3E8E5;
  --ink:#1B2A27;
  --ink-soft:#6B7A76;
  --footer-bg:#0B2B25;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow:0 8px 24px rgba(15,127,110,.08);
  --shadow-hover:0 14px 36px rgba(15,127,110,.16);
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.menu-open{overflow:hidden;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-0.01em;line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--accent);}
img{max-width:100%;display:block;height:auto;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:700;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s ease,background-color .22s ease,color .22s ease,box-shadow .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(255,122,69,.28);}
.btn-primary:hover{background:var(--accent-deep);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,122,69,.34);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-outline:hover{background:var(--brand);color:#fff;transform:translateY(-2px);}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.55);}
.btn-ghost:hover{background:#fff;color:var(--brand-deep);border-color:#fff;transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:14px;color:var(--brand);}
.link-arrow svg{transition:transform .22s ease;}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(150%) blur(8px);
}
.nav-shell{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  gap:18px;min-height:78px;
}
.nav-left{display:flex;align-items:center;justify-content:flex-end;gap:4px;}
.nav-right{display:flex;align-items:center;justify-content:flex-start;gap:4px;}
.nav-link{
  position:relative;padding:9px 14px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;color:#4B5B57;transition:color .2s ease,background-color .2s ease;
}
.nav-link:hover{color:var(--brand);background:var(--bg-lake);}
.nav-link.active{color:var(--brand-deep);}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;
  border-radius:3px;background:var(--accent);
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--brand-deep);justify-self:center;padding:6px 10px;border-radius:var(--radius-pill);}
.brand:hover{color:var(--brand);}
.brand-mark{display:inline-flex;width:38px;height:38px;color:var(--brand);}
.brand-mark svg{width:100%;height:100%;}
.brand-text{font-size:18px;font-weight:800;letter-spacing:-0.01em;white-space:nowrap;}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:#fff;cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.menu-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--brand-deep);transition:transform .25s ease,opacity .25s ease;}
body.menu-open .menu-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
body.menu-open .menu-toggle span:nth-child(2){opacity:0;}
body.menu-open .menu-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.menu-overlay{position:fixed;inset:0;background:rgba(11,43,37,.42);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:100;}
body.menu-open .menu-overlay{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;left:0;right:0;z-index:110;
  background:#fff;padding:96px 24px 28px;
  transform:translateY(-105%);transition:transform .3s ease;
  display:flex;flex-direction:column;gap:6px;
  box-shadow:0 18px 40px rgba(11,43,37,.18);
}
body.menu-open .mobile-drawer{transform:translateY(0);}
.drawer-link{padding:13px 14px;border-radius:12px;font-weight:600;color:#3C4C48;font-size:16px;}
.drawer-link:hover,.drawer-link.active{background:var(--bg-lake);color:var(--brand-deep);}
.drawer-cta{margin-top:12px;}
.drawer-note{margin-top:14px;font-size:13px;color:var(--ink-soft);line-height:1.7;}

/* ---------- 内页首屏 ---------- */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(135deg,#0A5A4F 0%,#0F7F6E 55%,#35B99C 100%);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.16;mix-blend-mode:luminosity;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-140px;width:520px;height:520px;border-radius:50%;
  border:1px solid rgba(255,255,255,.18);box-shadow:0 0 0 60px rgba(255,255,255,.05);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center;padding:44px 0 72px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.78);margin-bottom:22px;}
.crumb a{color:rgba(255,255,255,.9);}
.crumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.crumb span.current{color:#fff;font-weight:600;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);
  font-size:13px;font-weight:700;letter-spacing:.04em;margin-bottom:20px;
}
.hero-eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--accent);display:inline-block;}
.page-hero h1{font-size:clamp(30px,4vw,44px);line-height:1.25;margin-bottom:18px;}
.page-hero h1 em{font-style:normal;color:#FFD9C7;}
.hero-lead{font-size:17px;line-height:1.85;color:rgba(255,255,255,.88);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:28px;}
.hero-points li{font-size:14px;color:rgba(255,255,255,.82);display:flex;align-items:center;gap:8px;}
.hero-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);flex:none;}
.hero-media{position:relative;}
.hero-media .frame{
  border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid rgba(255,255,255,.28);
  box-shadow:0 24px 60px rgba(6,38,32,.34);
}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.hero-stats{
  position:relative;z-index:3;display:grid;grid-template-columns:repeat(3,1fr);gap:12px;
  margin-top:-34px;padding:0 0 0;
}
.stat-pill{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-pill);
  box-shadow:var(--shadow);padding:14px 18px;text-align:center;color:var(--ink);
}
.stat-pill strong{
  display:block;font-size:24px;font-weight:800;color:var(--brand-deep);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.stat-pill strong small{font-size:13px;font-weight:700;margin-left:2px;}
.stat-pill span{display:block;font-size:12px;color:var(--ink-soft);margin-top:4px;}

/* ---------- 通用板块 ---------- */
.section{padding:76px 0;}
.section-alt{background:var(--bg-lake);}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:40px;}
.section-head h2{font-size:clamp(24px,2.6vw,32px);}
.section-head .sub{margin-top:12px;color:var(--ink-soft);font-size:16px;max-width:620px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--radius-pill);
  background:rgba(15,127,110,.1);color:var(--brand-deep);
  font-size:12px;font-weight:700;letter-spacing:.03em;
}
.tag-accent{background:rgba(255,122,69,.13);color:#C4501F;}

/* ---------- 非对称卡片 ---------- */
.asym-cards{display:grid;grid-template-columns:1.25fr 1fr;grid-template-rows:repeat(2,1fr);gap:24px;}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);padding:30px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#C9DCD6;}
.card-feature{grid-row:span 2;justify-content:space-between;background:linear-gradient(160deg,#FFFFFF 40%,#F3F8F6 100%);}
.card h3{font-size:20px;margin-bottom:12px;}
.card p{color:var(--ink-soft);font-size:15px;line-height:1.85;}
.icon-badge{
  width:48px;height:48px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(15,127,110,.1);color:var(--brand-deep);margin-bottom:18px;flex:none;
}
.icon-badge svg{width:24px;height:24px;}
.card-feature .icon-badge{background:var(--brand);color:#fff;}
.card .link-arrow{margin-top:auto;padding-top:18px;}

/* ---------- 图文 + 清单 ---------- */
.split{display:grid;grid-template-columns:.95fr 1.05fr;gap:56px;align-items:center;}
.split-img{border-radius:var(--radius-lg);overflow:hidden;box-shadow:0 18px 44px rgba(15,127,110,.14);border:1px solid var(--line);}
.split-img img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.check-list{margin-top:26px;display:grid;gap:16px;}
.check-list li{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);padding:16px 18px;box-shadow:var(--shadow);transition:transform .2s ease,border-color .2s ease;}
.check-list li:hover{transform:translateX(4px);border-color:#C9DCD6;}
.check-list .num{
  flex:none;width:30px;height:30px;border-radius:50%;background:rgba(15,127,110,.1);
  color:var(--brand-deep);font-weight:800;font-size:14px;display:inline-flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.check-list strong{display:block;font-size:16px;margin-bottom:4px;}
.check-list span{font-size:14px;color:var(--ink-soft);line-height:1.75;}

/* ---------- 步骤条 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step;}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px 24px 26px;box-shadow:var(--shadow);transition:transform .22s ease,box-shadow .22s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:50%;
  background:linear-gradient(135deg,#0F7F6E,#35B99C);color:#fff;
  font-weight:800;font-size:15px;font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.step::after{
  content:"";position:absolute;top:48px;right:-16px;width:12px;height:2px;background:var(--line);
}
.step:last-child::after{display:none;}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--ink-soft);line-height:1.8;}

/* ---------- 对比卡 ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-card{border-radius:var(--radius-lg);padding:30px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow);}
.compare-card h3{font-size:19px;margin-bottom:18px;display:flex;align-items:center;gap:10px;}
.compare-card h3 i{width:10px;height:10px;border-radius:50%;display:inline-block;flex:none;}
.compare-risk h3 i{background:#E8663A;}
.compare-safe h3 i{background:var(--brand);}
.compare-risk{background:linear-gradient(160deg,#FFF6F2,#FFFFFF);}
.compare-safe{background:linear-gradient(160deg,#F1FAF7,#FFFFFF);}
.compare-card ul{display:grid;gap:12px;}
.compare-card li{position:relative;padding-left:24px;font-size:15px;color:#3C4C48;line-height:1.8;}
.compare-card li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;
}
.compare-risk li::before{background:#F0B39B;}
.compare-safe li::before{background:var(--brand-light);}

/* ---------- FAQ ---------- */
.faq{max-width:880px;margin:0 auto;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 4px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:700;color:var(--ink);transition:color .2s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  position:relative;flex:none;width:26px;height:26px;border-radius:50%;
  background:rgba(15,127,110,.1);transition:background-color .2s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand-deep);
  transform:translate(-50%,-50%);transition:transform .25s ease,background-color .25s ease;border-radius:2px;
}
.faq-icon::before{width:12px;height:2px;}
.faq-icon::after{width:2px;height:12px;}
.faq-item.open .faq-icon{background:var(--accent);}
.faq-item.open .faq-icon::before,.faq-item.open .faq-icon::after{background:#fff;}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 4px 24px;color:var(--ink-soft);font-size:15px;line-height:1.9;max-width:760px;}

/* ---------- 交叉链接 ---------- */
.cross-links{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.cross-card{
  display:flex;flex-direction:column;gap:10px;padding:28px;border-radius:var(--radius-lg);
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.cross-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#C9DCD6;color:inherit;}
.cross-card .tag{align-self:flex-start;}
.cross-card h3{font-size:18px;color:var(--ink);}
.cross-card p{font-size:14px;color:var(--ink-soft);line-height:1.8;}
.cross-card .link-arrow{margin-top:8px;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:32px;
  background:linear-gradient(135deg,#0A5A4F,#0F7F6E 55%,#35B99C);
  color:#fff;padding:52px 48px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;opacity:.14;
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.86);font-size:15px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer-bg);color:rgba(255,255,255,.78);padding:64px 0 0;margin-top:80px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.brand-footer{color:#fff;justify-self:start;padding-left:0;margin-bottom:16px;}
.brand-footer .brand-mark{color:var(--brand-light);}
.brand-footer:hover{color:var(--brand-light);}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:330px;}
.footer-meta{margin-top:16px;font-size:13px;color:rgba(255,255,255,.5);}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:18px;letter-spacing:.02em;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68);}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-sub p{font-size:13px;color:rgba(255,255,255,.6);line-height:1.8;margin-bottom:14px;}
.footer-form{display:flex;gap:10px;flex-wrap:wrap;}
.footer-form input{
  flex:1 1 160px;min-width:0;padding:11px 16px;border-radius:12px;
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.08);
  color:#fff;font-size:14px;transition:border-color .2s ease,background-color .2s ease,box-shadow .2s ease;
}
.footer-form input::placeholder{color:rgba(255,255,255,.45);}
.footer-form input:focus{outline:none;border-color:var(--brand-light);background:rgba(255,255,255,.14);box-shadow:0 0 0 3px rgba(53,185,156,.28);}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  border-top:1px solid rgba(255,255,255,.12);padding-top:22px;padding-bottom:26px;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease;}
.reveal.visible{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-inner{gap:40px;}
  .split{gap:40px;}
}
@media (max-width:991px){
  .nav-left,.nav-right .nav-link,.nav-right .nav-cta{display:none;}
  .nav-shell{grid-template-columns:44px 1fr 44px;}
  .nav-left{display:flex;justify-content:flex-start;}
  .nav-right{display:flex;justify-content:flex-end;}
  .menu-toggle{display:flex;}
  .brand{grid-column:2;}
  .brand-text{font-size:17px;}
  .hero-inner{grid-template-columns:1fr;padding:34px 0 60px;gap:34px;}
  .hero-media{order:-1;max-width:560px;}
  .hero-stats{margin-top:-24px;}
  .asym-cards{grid-template-columns:1fr;grid-template-rows:none;}
  .card-feature{grid-row:auto;}
  .split{grid-template-columns:1fr;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .step::after{display:none;}
  .compare{grid-template-columns:1fr;}
  .cross-links{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .section{padding:52px 0;}
  .page-hero h1{font-size:27px;}
  .hero-lead{font-size:15.5px;}
  .hero-stats{grid-template-columns:1fr;gap:10px;}
  .stat-pill{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;text-align:left;}
  .stat-pill strong{font-size:20px;}
  .stat-pill span{margin-top:0;}
  .card{padding:24px;}
  .steps{grid-template-columns:1fr;}
  .cta-band{padding:36px 24px;border-radius:24px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;}
  .faq-q{font-size:15.5px;padding:18px 2px;}
  .section-head{margin-bottom:28px;}
}
@media (max-width:520px){
  .brand-text{font-size:15px;}
  .brand-mark{width:32px;height:32px;}
  .btn{padding:12px 20px;font-size:14px;}
  .hero-actions .btn{flex:1 1 100%;}
  .brand{padding:4px 6px;}
}

/* roulang page: category3 */
:root{
  --brand:#0F7F6E;
  --brand-deep:#0A5A4F;
  --brand-mid:#35B99C;
  --brand-soft:#F3F8F6;
  --accent:#FF7A45;
  --accent-deep:#E8622C;
  --bg:#FBF9F5;
  --ink:#1B2A27;
  --muted:#6B7A76;
  --line:#E3E8E5;
  --white:#FFFFFF;
  --footer:#0B2B25;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow:0 8px 24px rgba(15,127,110,.08);
  --shadow-hover:0 14px 36px rgba(15,127,110,.16);
  --container:1200px;
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;object-fit:cover}
a{color:var(--brand);text-decoration:none;transition:color .22s ease}
a:hover{color:var(--accent)}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.3;color:var(--ink)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;
  font-size:15.5px;font-weight:700;line-height:1;
  border:1.5px solid transparent;
  transition:transform .22s ease,background .22s ease,color .22s ease,box-shadow .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 24px rgba(255,122,69,.28)}
.btn-primary:hover{background:var(--accent-deep);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,122,69,.34)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand);color:#fff;transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:14.5px}
.btn-link{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--brand);font-size:15px;padding:4px 0}
.btn-link .arrow{transition:transform .22s ease}
.btn-link:hover{color:var(--accent)}
.btn-link:hover .arrow{transform:translateX(4px)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(251,249,245,.94);
  border-bottom:1px solid transparent;
  backdrop-filter:saturate(1.2) blur(8px);
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-stuck{background:#fff;border-bottom-color:var(--line);box-shadow:0 8px 22px rgba(15,127,110,.09)}
.nav-shell{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  gap:20px;min-height:78px;
}
.nav-left,.nav-right{display:flex;align-items:center;gap:4px}
.nav-left{justify-content:flex-start;flex-wrap:wrap}
.nav-right{justify-content:flex-end;flex-wrap:wrap}
.nav-link{
  position:relative;padding:9px 13px;border-radius:999px;
  color:var(--ink);font-size:15px;font-weight:500;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.nav-link.active{color:var(--brand);font-weight:700}
.nav-link.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:1px;height:2px;
  border-radius:2px;background:var(--accent);
}
.brand{
  display:inline-flex;align-items:center;gap:10px;justify-self:center;
  color:var(--brand-deep);font-weight:800;letter-spacing:-.01em;
}
.brand:hover{color:var(--brand-deep)}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;display:grid;place-items:center;
  border-radius:12px;color:#fff;
  background:linear-gradient(135deg,var(--brand),var(--brand-mid));
  box-shadow:0 6px 16px rgba(15,127,110,.24);
}
.brand-mark svg{width:24px;height:24px}
.brand-text{font-size:19px;white-space:nowrap}
.nav-cta{margin-left:8px}
.menu-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;margin-left:6px;
}
.menu-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--ink);margin:0 auto;transition:transform .22s ease,opacity .22s ease}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.menu-overlay{
  position:fixed;inset:0;background:rgba(11,43,37,.42);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:110;
}
.menu-overlay.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;left:0;right:0;z-index:115;
  background:#fff;padding:84px 24px 28px;
  border-bottom-left-radius:24px;border-bottom-right-radius:24px;
  box-shadow:0 20px 44px rgba(11,43,37,.18);
  transform:translateY(-110%);visibility:hidden;
  transition:transform .3s ease,visibility .3s ease;
}
.mobile-drawer.is-open{transform:translateY(0);visibility:visible}
.drawer-link{
  display:block;padding:13px 6px;font-size:16px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer-link.active{color:var(--brand)}
.drawer-link:hover{color:var(--brand)}
.drawer-cta{width:100%;margin-top:18px}
.drawer-note{margin-top:14px;font-size:13px;color:var(--muted);line-height:1.7}

/* ---------- Hero ---------- */
.hero{position:relative;padding:58px 0 66px;overflow:hidden;background:var(--bg)}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(15,127,110,.16) 1px,transparent 1px);
  background-size:22px 22px;opacity:.35;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
  pointer-events:none;
}
.hero-grid{
  position:relative;display:grid;grid-template-columns:1.06fr .94fr;
  gap:52px;align-items:center;
}
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13.5px;color:var(--muted);margin-bottom:20px;
}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{opacity:.6}
.crumb .current{color:var(--brand);font-weight:600}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-deep);
  font-size:13px;font-weight:700;letter-spacing:.02em;
}
.tag .dot{width:7px;height:7px;border-radius:50%;background:var(--accent)}
.hero h1{
  font-size:clamp(30px,4vw,46px);margin:18px 0 18px;letter-spacing:-.015em;
}
.hero h1 em{font-style:normal;color:var(--brand);position:relative}
.hero h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:4px;height:8px;
  background:rgba(255,122,69,.22);border-radius:4px;z-index:-1;
}
.hero-lead{font-size:17px;color:var(--muted);max-width:560px;line-height:1.9}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;padding:0}
.hero-points li{
  display:flex;align-items:center;gap:8px;font-size:14.5px;color:var(--ink);font-weight:500;
}
.hero-points li::before{
  content:"";width:16px;height:16px;border-radius:50%;flex:0 0 16px;
  background:var(--brand-soft);
  border:2px solid var(--brand);
  box-shadow:inset 0 0 0 3px #fff;
}
.hero-figure{position:relative}
.hero-figure .frame{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
  background:#fff;
}
.hero-figure .frame img{width:100%;height:390px;object-fit:cover}
.hero-figure .frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(15,127,110,.16),rgba(255,122,69,.08) 62%,transparent);
}
.hero-badges{
  position:relative;margin:-42px 12px 0;
  display:grid;grid-template-columns:repeat(3,1fr);gap:10px;
}
.hero-badge{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:14px 12px;text-align:center;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.hero-badge:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#cfe3dd}
.hero-badge b{
  display:block;font-size:22px;color:var(--brand);font-weight:800;
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.hero-badge span{font-size:12.5px;color:var(--muted);display:block;margin-top:3px}

/* ---------- 通用板块 ---------- */
.section{padding:84px 0}
.section.tint{background:var(--brand-soft)}
.section-head{max-width:720px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--brand);text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px}
.section-head h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:14px}
.section-head p{color:var(--muted);font-size:16px;line-height:1.9}

/* ---------- 功能卡（非对称） ---------- */
.feature-grid{
  display:grid;grid-template-columns:1.15fr .85fr;gap:26px;
}
.feature-card{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:30px;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#cfe3dd}
.feature-card.main{grid-row:span 2;padding:0;overflow:hidden;display:grid;grid-template-rows:auto 1fr}
.feature-card.main .media{position:relative;height:262px;overflow:hidden}
.feature-card.main .media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.feature-card.main:hover .media img{transform:scale(1.04)}
.feature-card.main .media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(11,43,37,.42));
}
.feature-card.main .body{padding:28px 30px 32px}
.feature-card.main h3{font-size:23px;margin-bottom:12px}
.feature-card h3{font-size:20px;margin-bottom:10px}
.feature-card p{color:var(--muted);font-size:15.5px;line-height:1.85}
.ic{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);margin-bottom:18px;
}
.ic svg{width:23px;height:23px}
.feature-card.main .ic{background:rgba(255,122,69,.12);color:var(--accent-deep)}
.feature-list{margin-top:16px;display:grid;gap:9px}
.feature-list li{
  position:relative;padding-left:20px;font-size:14.5px;color:var(--ink);
}
.feature-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;
  border-radius:50%;background:var(--brand-mid);opacity:.85;
}
.feature-card .btn-link{margin-top:18px}

/* ---------- 步骤条 ---------- */
.steps{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;margin-top:8px;
}
.steps::before{
  content:"";position:absolute;top:26px;left:6%;right:6%;height:2px;
  background:linear-gradient(90deg,rgba(15,127,110,.35),rgba(255,122,69,.35));
  border-radius:2px;
}
.step{position:relative;background:transparent;text-align:left;padding-top:0}
.step .num{
  position:relative;z-index:1;width:54px;height:54px;border-radius:18px;
  display:grid;place-items:center;font-weight:800;font-size:19px;
  background:#fff;color:var(--brand);border:2px solid #d8ebe5;
  box-shadow:0 6px 16px rgba(15,127,110,.1);
  font-variant-numeric:tabular-nums;
  transition:transform .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.step:hover .num{background:var(--brand);color:#fff;border-color:var(--brand);transform:translateY(-4px)}
.step h3{font-size:17px;margin:16px 0 8px}
.step p{font-size:14.5px;color:var(--muted);line-height:1.8}

/* ---------- 图文 + 清单 ---------- */
.split{display:grid;grid-template-columns:.95fr 1.05fr;gap:48px;align-items:center}
.split-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.split-media img{width:100%;height:420px;object-fit:cover}
.split-media .float-card{
  position:absolute;left:18px;bottom:18px;right:18px;
  background:rgba(255,255,255,.95);backdrop-filter:blur(6px);
  border-radius:var(--radius-md);padding:16px 18px;border:1px solid rgba(227,232,229,.9);
}
.split-media .float-card b{color:var(--brand);font-size:15px}
.split-media .float-card span{display:block;font-size:13.5px;color:var(--muted);margin-top:2px}
.checklist{display:grid;gap:14px;margin-top:22px}
.checklist li{
  display:grid;grid-template-columns:26px 1fr;gap:12px;align-items:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:16px 18px;box-shadow:0 4px 14px rgba(15,127,110,.05);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.checklist li:hover{transform:translateX(4px);box-shadow:var(--shadow);border-color:#cfe3dd}
.check-mark{
  width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:800;
}
.checklist strong{display:block;font-size:15.5px;margin-bottom:2px}
.checklist span{font-size:14.5px;color:var(--muted);line-height:1.75}

/* ---------- 对比卡 ---------- */
.compare{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.compare-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#cfe3dd}
.compare-card .head{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.compare-card .head .ic{margin:0}
.compare-card h3{font-size:19px}
.compare-card .note{font-size:13px;color:var(--muted);margin-top:4px}
.compare-card ul{display:grid;gap:11px;margin-top:6px}
.compare-card li{
  position:relative;padding-left:24px;font-size:15px;color:var(--ink);line-height:1.8;
}
.compare-card li::before{
  content:"✓";position:absolute;left:0;top:0;color:var(--brand);font-weight:800;font-size:14px;
}
.compare-card.warm{border-color:rgba(255,122,69,.32);background:linear-gradient(180deg,#FFF9F5,#fff 42%)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{
  border-bottom:1px solid var(--line);background:transparent;
  transition:background .22s ease;
}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 4px;text-align:left;font-size:17px;font-weight:700;color:var(--ink);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand)}
.sign{
  position:relative;flex:0 0 30px;width:30px;height:30px;border-radius:50%;
  background:var(--brand-soft);transition:background .22s ease,transform .25s ease;
}
.sign::before,.sign::after{
  content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  background:var(--brand);border-radius:2px;transition:transform .25s ease,background .22s ease;
}
.sign::before{width:12px;height:2px}
.sign::after{width:2px;height:12px}
.faq-item.open .sign{background:var(--accent);transform:rotate(90deg)}
.faq-item.open .sign::before,.faq-item.open .sign::after{background:#fff}
.faq-item.open .sign::after{transform:translate(-50%,-50%) scaleY(0)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .3s ease;
}
.faq-a p{
  padding:0 4px 24px;color:var(--muted);font-size:15.5px;line-height:1.9;max-width:720px;
}

/* ---------- 交叉链接 ---------- */
.cross-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cross-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px;box-shadow:var(--shadow);color:var(--ink);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.cross-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:#cfe3dd;color:var(--ink)}
.cross-card .tag{margin-bottom:16px}
.cross-card h3{font-size:18.5px;margin-bottom:10px}
.cross-card p{font-size:14.5px;color:var(--muted);line-height:1.8}
.cross-card .go{
  display:inline-flex;align-items:center;gap:6px;margin-top:18px;
  font-size:14.5px;font-weight:700;color:var(--brand);
}
.cross-card:hover .go{color:var(--accent)}
.cross-card .go .arrow{transition:transform .22s ease}
.cross-card:hover .go .arrow{transform:translateX(4px)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:28px;
  background:linear-gradient(135deg,#0F7F6E,#35B99C);
  padding:52px 48px;color:#fff;
  display:grid;grid-template-columns:1.2fr auto;gap:32px;align-items:center;
  box-shadow:0 20px 44px rgba(15,127,110,.22);
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;width:320px;height:320px;
  border-radius:50%;background:rgba(255,255,255,.1);
}
.cta-band::after{
  content:"";position:absolute;left:-40px;bottom:-90px;width:240px;height:240px;
  border-radius:50%;background:rgba(255,122,69,.18);
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{color:#fff;font-size:clamp(23px,2.5vw,30px);margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.88);font-size:15.5px;max-width:560px;line-height:1.85}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-band .btn-primary{background:var(--accent);box-shadow:0 12px 26px rgba(11,43,37,.22)}
.cta-band .btn-primary:hover{background:#fff;color:var(--brand-deep)}
.btn-outline-light{border-color:rgba(255,255,255,.7);color:#fff;background:transparent}
.btn-outline-light:hover{background:#fff;color:var(--brand-deep);border-color:#fff}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer);color:rgba(255,255,255,.78);padding:68px 0 0;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{color:#fff;justify-self:start;margin-bottom:16px}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-mark{background:linear-gradient(135deg,#35B99C,#0F7F6E)}
.footer-brand p{font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.66);max-width:320px}
.footer-badge{
  display:inline-flex;align-items:center;gap:8px;margin-top:18px;
  padding:7px 14px;border-radius:999px;font-size:13px;
  background:rgba(255,255,255,.08);color:#c9e6de;border:1px solid rgba(255,255,255,.14);
}
.footer-badge .dot{width:7px;height:7px;border-radius:50%;background:#43D6AE;box-shadow:0 0 0 4px rgba(67,214,174,.16)}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.02em}
.footer-col a{
  display:block;font-size:14.5px;color:rgba(255,255,255,.7);
  padding:6px 0;transition:color .2s ease,transform .2s ease;
}
.footer-col a:hover{color:#fff;transform:translateX(3px)}
.footer-form{display:flex;gap:8px;margin-top:14px}
.footer-form input{
  flex:1;min-width:0;padding:11px 14px;border-radius:12px;
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.07);
  color:#fff;font-size:14px;
}
.footer-form input::placeholder{color:rgba(255,255,255,.42)}
.footer-form input:focus{outline:2px solid var(--accent);outline-offset:2px;background:rgba(255,255,255,.12)}
.footer-form button{padding:11px 18px}
.footer-tip{font-size:12.5px;color:rgba(255,255,255,.5);margin-top:10px;line-height:1.7}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 26px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.62)}
.footer-bottom a:hover{color:#fff}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-grid{gap:38px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .footer-col:last-child{grid-column:1 / -1}
}
@media (max-width:991px){
  .nav-left .nav-link,.nav-right .nav-link{display:none}
  .menu-toggle{display:flex}
  .nav-shell{grid-template-columns:1fr auto 1fr}
  .hero{padding:44px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-figure .frame img{height:320px}
  .hero-badges{margin:-36px 8px 0}
  .feature-grid{grid-template-columns:1fr}
  .feature-card.main{grid-row:auto}
  .steps{grid-template-columns:repeat(2,1fr);gap:24px}
  .steps::before{display:none}
  .split{grid-template-columns:1fr;gap:32px}
  .split-media img{height:340px}
  .compare{grid-template-columns:1fr}
  .cross-grid{grid-template-columns:1fr 1fr}
  .cta-band{grid-template-columns:1fr;padding:40px 32px}
  .section{padding:64px 0}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .brand-text{font-size:16.5px}
  .brand-mark{width:34px;height:34px;flex:0 0 34px}
  .nav-shell{min-height:66px;gap:12px}
  .hero h1{font-size:clamp(26px,7vw,34px)}
  .hero-lead{font-size:16px}
  .hero-actions .btn{flex:1 1 auto}
  .hero-figure .frame img{height:250px}
  .hero-badges{grid-template-columns:1fr 1fr 1fr;margin:-30px 6px 0;gap:8px}
  .hero-badge{padding:11px 8px}
  .hero-badge b{font-size:18px}
  .hero-badge span{font-size:11.5px}
  .section{padding:52px 0}
  .section-head{margin-bottom:32px}
  .feature-card,.compare-card{padding:24px}
  .feature-card.main .media{height:210px}
  .feature-card.main .body{padding:22px 24px 26px}
  .steps{grid-template-columns:1fr;gap:20px}
  .step{display:grid;grid-template-columns:54px 1fr;gap:16px;align-items:start}
  .step .num{width:48px;height:48px;border-radius:15px;font-size:17px}
  .step h3{margin:4px 0 6px}
  .split-media img{height:250px}
  .cross-grid{grid-template-columns:1fr}
  .cta-band{padding:34px 22px;border-radius:22px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding-bottom:36px}
  .footer-brand{grid-column:1 / -1}
  .footer-col:last-child{grid-column:1 / -1}
  .site-footer{padding-top:48px}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq-q{font-size:16px;padding:18px 2px}
}
@media (max-width:479px){
  .hero-badges{grid-template-columns:1fr;margin-top:14px}
  .hero-badge{display:flex;align-items:baseline;justify-content:center;gap:8px}
  .hero-badge span{margin-top:0}
  .footer-form{flex-direction:column}
  .footer-form button{width:100%}
}

/* roulang page: category4 */
:root{
  --brand:#0F7F6E;
  --brand-dark:#0A5A4F;
  --brand-light:#35B99C;
  --brand-grad:linear-gradient(135deg,#0F7F6E 0%,#35B99C 100%);
  --accent:#FF7A45;
  --accent-dark:#E8632F;
  --bg:#FBF9F5;
  --lake:#F3F8F6;
  --white:#FFFFFF;
  --line:#E3E8E5;
  --line-strong:#C9DCD6;
  --ink:#1B2A27;
  --muted:#6B7A76;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-img:20px;
  --radius-sm:12px;
  --shadow:0 8px 24px rgba(15,127,110,.08);
  --shadow-hover:0 14px 36px rgba(15,127,110,.16);
  --ease:220ms ease;
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--accent)}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.2em}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-0.01em;line-height:1.3;color:var(--ink)}
button{font-family:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:6px;
}

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

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:15.5px;
  font-weight:700;
  line-height:1;
  cursor:pointer;
  text-align:center;
  transition:transform var(--ease),background var(--ease),color var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.btn-primary{
  background:var(--accent);
  color:#fff;
  box-shadow:0 8px 20px rgba(255,122,69,.28);
}
.btn-primary:hover{
  background:var(--accent-dark);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 12px 26px rgba(255,122,69,.34);
}
.btn-primary:active{transform:translateY(0)}
.btn-outline{
  background:#fff;
  color:var(--brand);
  border-color:var(--brand);
}
.btn-outline:hover{
  background:var(--brand);
  color:#fff;
}
.btn-ghost{
  background:rgba(255,255,255,.14);
  color:#fff;
  border-color:rgba(255,255,255,.6);
}
.btn-ghost:hover{
  background:#fff;
  color:var(--brand-dark);
  border-color:#fff;
}
.btn-sm{padding:10px 20px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease),background var(--ease);
}
.site-header.is-stuck{box-shadow:0 6px 20px rgba(15,127,110,.10)}
.nav-shell{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:24px;
  min-height:76px;
}
.nav-left,.nav-right{display:flex;align-items:center;gap:6px}
.nav-left{justify-content:flex-start}
.nav-right{justify-content:flex-end}
.nav-link{
  position:relative;
  padding:8px 12px;
  border-radius:999px;
  font-size:15px;
  font-weight:500;
  color:var(--ink);
  white-space:nowrap;
  transition:color var(--ease),background var(--ease);
}
.nav-link:hover{color:var(--brand);background:var(--lake)}
.nav-link.active{color:var(--brand);font-weight:800}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:1px;
  height:2px;
  border-radius:2px;
  background:var(--accent);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--brand-dark);
  font-weight:800;
}
.brand:hover{color:var(--brand)}
.brand-mark{
  display:grid;
  place-items:center;
  width:40px;
  height:40px;
  border-radius:13px;
  background:var(--lake);
  border:1px solid var(--line);
  color:var(--brand);
  flex:0 0 auto;
}
.brand-mark svg{width:26px;height:26px}
.brand-text{font-size:17px;letter-spacing:-0.01em;white-space:nowrap}
.nav-cta{margin-left:8px}

.menu-toggle{
  display:none;
  width:42px;
  height:42px;
  padding:0;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
  transition:border-color var(--ease),background var(--ease);
}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-dark);transition:transform var(--ease),opacity var(--ease)}
.menu-toggle:hover{border-color:var(--brand);background:var(--lake)}

.menu-overlay{
  position:fixed;
  inset:0;
  z-index:70;
  background:rgba(11,43,37,.45);
  opacity:0;
  pointer-events:none;
  transition:opacity 240ms ease;
}
body.menu-open .menu-overlay{opacity:1;pointer-events:auto}
body.menu-open{overflow:hidden}
.mobile-drawer{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:80;
  display:flex;
  flex-direction:column;
  gap:6px;
  padding:22px 24px 28px;
  background:#fff;
  border-radius:0 0 24px 24px;
  box-shadow:0 18px 40px rgba(11,43,37,.18);
  transform:translateY(-110%);
  transition:transform 280ms ease;
  max-height:100vh;
  overflow-y:auto;
}
body.menu-open .mobile-drawer{transform:translateY(0)}
.drawer-link{
  padding:14px 12px;
  border-radius:12px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer-link:hover{background:var(--lake);color:var(--brand)}
.drawer-link.active{color:var(--brand);background:var(--lake)}
.drawer-cta{margin-top:14px;width:100%}
.drawer-note{
  margin:14px 0 0;
  font-size:13px;
  line-height:1.7;
  color:var(--muted);
}

/* ---------- Section basics ---------- */
.section{padding:88px 0}
.section-alt{background:var(--lake)}
.section-white{background:#fff}
.section-head{max-width:740px;margin-bottom:44px}
.eyebrow{
  display:inline-block;
  padding:6px 14px;
  border-radius:999px;
  background:var(--lake);
  border:1px solid var(--line);
  color:var(--brand);
  font-size:13px;
  font-weight:700;
  letter-spacing:.02em;
}
.section-head h2{
  font-size:clamp(24px,2.6vw,32px);
  margin:16px 0 12px;
}
.section-head p{
  margin:0;
  color:var(--muted);
  font-size:16.5px;
  line-height:1.85;
}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:72px 0 84px;
  color:#fff;
  background:linear-gradient(135deg,#0A5A4F 0%,#0F7F6E 52%,#35B99C 100%);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.16;
  pointer-events:none;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-70px;
  top:-60px;
  width:440px;
  height:440px;
  background-image:radial-gradient(rgba(255,255,255,.55) 1.5px,transparent 1.5px);
  background-size:18px 18px;
  opacity:.14;
  pointer-events:none;
}
.hero-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.3fr .7fr;
  gap:56px;
  align-items:center;
}
.hero-copy .eyebrow{
  background:rgba(255,255,255,.16);
  border-color:rgba(255,255,255,.35);
  color:#fff;
}
.page-hero h1{
  margin:18px 0 18px;
  font-size:clamp(30px,4vw,46px);
  color:#fff;
  letter-spacing:-0.02em;
  line-height:1.24;
}
.hero-sub{
  margin:0 0 28px;
  max-width:620px;
  font-size:17px;
  line-height:1.85;
  color:rgba(255,255,255,.9);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  list-style:none;
  margin:0;
  padding:0;
}
.hero-points li{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14.5px;
  color:rgba(255,255,255,.92);
}
.hero-points li::before{
  content:"";
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--accent);
  flex:0 0 auto;
}
.hero-side{display:grid;gap:14px}
.stat-card{
  display:flex;
  align-items:center;
  gap:16px;
  padding:18px 22px;
  background:#fff;
  border-radius:var(--radius-md);
  box-shadow:0 12px 30px rgba(6,42,36,.18);
  transition:transform var(--ease),box-shadow var(--ease);
}
.stat-card:hover{transform:translateY(-3px);box-shadow:0 18px 38px rgba(6,42,36,.24)}
.stat-num{
  font-size:26px;
  font-weight:800;
  line-height:1;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  white-space:nowrap;
}
.stat-num small{font-size:13px;font-weight:700;margin-left:2px;color:var(--brand-dark)}
.stat-label{font-size:13.5px;line-height:1.55;color:var(--muted)}

/* ---------- Split: big card + side panel ---------- */
.split{
  display:grid;
  grid-template-columns:1.45fr .55fr;
  gap:32px;
  align-items:start;
}
.feature-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.feature-media{position:relative;overflow:hidden;border-radius:0}
.feature-media img{
  width:100%;
  height:300px;
  object-fit:cover;
  transition:transform 520ms ease;
}
.feature-card:hover .feature-media img{transform:scale(1.03)}
.feature-body{padding:30px 32px 34px}
.feature-body h3{font-size:22px;margin-bottom:12px}
.feature-body > p{color:var(--muted);font-size:15.8px;line-height:1.85}
.check-list{list-style:none;margin:18px 0 0;padding:0;display:grid;gap:12px}
.check-list li{
  display:flex;
  gap:12px;
  font-size:15.4px;
  line-height:1.75;
  color:var(--ink);
}
.check-list li::before{
  content:"";
  flex:0 0 auto;
  width:20px;
  height:20px;
  margin-top:4px;
  border-radius:50%;
  background:rgba(15,127,110,.12);
  border:1px solid rgba(15,127,110,.35);
  background-image:linear-gradient(45deg,transparent 45%,var(--brand) 45%,var(--brand) 55%,transparent 55%);
  background-size:100% 100%;
  opacity:.9;
}

.side-panel{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:26px 22px 24px;
  box-shadow:var(--shadow);
}
.side-panel h3{
  font-size:17px;
  margin:0 0 6px;
}
.side-panel .side-desc{
  font-size:13.5px;
  color:var(--muted);
  margin:0 0 16px;
  line-height:1.7;
}
.side-list{list-style:none;margin:0;padding:0;display:grid;gap:4px}
.side-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:12px 14px;
  border-radius:12px;
  font-size:15px;
  color:var(--ink);
  transition:background var(--ease),color var(--ease),transform var(--ease);
}
.side-list a::after{
  content:"→";
  color:var(--accent);
  font-size:14px;
  transition:transform var(--ease);
}
.side-list a:hover{background:var(--lake);color:var(--brand);transform:translateX(2px)}
.side-list a:hover::after{transform:translateX(4px)}

/* ---------- Steps ---------- */
.steps{
  position:relative;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:26px;
  margin-top:10px;
}
.steps::before{
  content:"";
  position:absolute;
  left:0;
  right:0;
  top:26px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,rgba(15,127,110,.45),rgba(255,122,69,.45));
  z-index:0;
}
.step{position:relative;z-index:1}
.step-num{
  display:grid;
  place-items:center;
  width:52px;
  height:52px;
  border-radius:50%;
  background:#fff;
  border:2px solid var(--brand);
  color:var(--brand);
  font-weight:800;
  font-size:18px;
  font-variant-numeric:tabular-nums;
  box-shadow:0 6px 16px rgba(15,127,110,.12);
  transition:background var(--ease),color var(--ease),transform var(--ease);
}
.step:hover .step-num{background:var(--brand);color:#fff;transform:translateY(-3px)}
.step h3{font-size:17.5px;margin:18px 0 8px}
.step p{margin:0;font-size:14.6px;line-height:1.8;color:var(--muted)}

/* ---------- Compare ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.compare-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:32px;
  box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.compare-card h3{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:20px;
  margin-bottom:6px;
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 12px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:700;
  background:var(--lake);
  color:var(--brand);
  border:1px solid rgba(15,127,110,.22);
  letter-spacing:.02em;
}
.tag-accent{
  background:rgba(255,122,69,.12);
  color:var(--accent-dark);
  border-color:rgba(255,122,69,.34);
}
.compare-card > p{color:var(--muted);font-size:15.2px;line-height:1.8;margin:12px 0 0}
.compare-list{list-style:none;margin:20px 0 0;padding:0;display:grid;gap:14px}
.compare-list li{
  position:relative;
  padding-left:24px;
  font-size:15.3px;
  line-height:1.75;
  color:var(--ink);
}
.compare-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:9px;
  height:9px;
  border-radius:50%;
  background:var(--brand);
  opacity:.75;
}

/* ---------- Quote ---------- */
.quote-card{
  margin:32px 0 0;
  display:grid;
  grid-template-columns:auto 1fr;
  gap:24px;
  align-items:center;
  background:linear-gradient(135deg,rgba(15,127,110,.08),rgba(53,185,156,.08));
  border:1px solid var(--line-strong);
  border-radius:var(--radius-lg);
  padding:30px 34px;
}
.quote-mark{
  font-size:64px;
  line-height:.8;
  color:var(--brand);
  opacity:.35;
  font-weight:800;
  font-family:Georgia,serif;
}
.quote-card blockquote{
  margin:0 0 14px;
  font-size:16.5px;
  line-height:1.9;
  color:var(--ink);
}
.quote-card footer{display:flex;align-items:center;gap:12px;font-size:14px;color:var(--muted)}
.quote-card footer strong{color:var(--brand-dark);font-size:15px}
.quote-card footer span::before{
  content:"·";
  margin-right:10px;
  color:var(--accent);
}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  overflow:hidden;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item:hover{border-color:var(--line-strong);box-shadow:var(--shadow)}
.faq-item.open{border-color:var(--line-strong);box-shadow:var(--shadow)}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  width:100%;
  padding:20px 24px;
  background:none;
  border:0;
  font-size:16.5px;
  font-weight:700;
  color:var(--ink);
  text-align:left;
  cursor:pointer;
  transition:color var(--ease);
}
.faq-q:hover{color:var(--brand)}
.faq-icon{
  position:relative;
  flex:0 0 auto;
  width:26px;
  height:26px;
  border-radius:50%;
  background:var(--lake);
  color:var(--brand);
  transition:transform var(--ease),background var(--ease),color var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  left:50%;
  top:50%;
  background:currentColor;
  border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:12px;height:2px}
.faq-icon::after{width:2px;height:12px}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--accent);color:#fff}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 320ms ease;
}
.faq-a p{
  margin:0;
  padding:0 24px 22px;
  font-size:15.4px;
  line-height:1.9;
  color:var(--muted);
}
.faq-item.open .faq-a{max-height:520px}

/* ---------- Cross links ---------- */
.cross-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.cross-card{
  display:block;
  padding:28px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  color:var(--ink);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.cross-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:var(--line-strong);
  color:var(--ink);
}
.cross-card h3{font-size:19px;margin:16px 0 10px}
.cross-card p{margin:0 0 18px;font-size:14.8px;line-height:1.8;color:var(--muted)}
.cross-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14.5px;
  font-weight:700;
  color:var(--brand);
}
.cross-more::after{content:"→";transition:transform var(--ease)}
.cross-card:hover .cross-more{color:var(--accent)}
.cross-card:hover .cross-more::after{transform:translateX(4px)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:44px;
  align-items:center;
  padding:52px 56px;
  border-radius:var(--radius-lg);
  color:#fff;
  background:linear-gradient(135deg,#0A5A4F 0%,#0F7F6E 58%,#35B99C 100%);
  box-shadow:0 20px 44px rgba(10,90,79,.24);
}
.cta-band::after{
  content:"";
  position:absolute;
  left:-40px;
  bottom:-70px;
  width:320px;
  height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.16),transparent 70%);
  pointer-events:none;
}
.cta-band h2{
  color:#fff;
  font-size:clamp(23px,2.5vw,30px);
  margin-bottom:14px;
}
.cta-band p{
  margin:0 0 22px;
  font-size:15.6px;
  line-height:1.85;
  color:rgba(255,255,255,.9);
  max-width:460px;
}
.cta-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
  list-style:none;
  margin:0;
  padding:0;
}
.cta-meta li{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:rgba(255,255,255,.9);
}
.cta-meta li::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--accent);
}
.form-card{
  position:relative;
  z-index:1;
  background:#fff;
  border-radius:var(--radius-img);
  padding:26px 26px 24px;
  color:var(--ink);
  box-shadow:0 20px 40px rgba(6,42,36,.24);
}
.form-card h3{font-size:17.5px;margin-bottom:6px}
.form-card .form-hint{font-size:13.2px;color:var(--muted);margin:0 0 18px;line-height:1.7}
.field{margin-bottom:14px}
.field label{
  display:block;
  margin-bottom:6px;
  font-size:13.5px;
  font-weight:700;
  color:var(--ink);
}
.field input,.field textarea{
  width:100%;
  padding:12px 14px;
  font-family:inherit;
  font-size:15px;
  line-height:1.6;
  color:var(--ink);
  background:#F7FAF9;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  transition:border-color var(--ease),background var(--ease),box-shadow var(--ease);
}
.field textarea{min-height:88px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#9BA9A5}
.field input:focus,.field textarea:focus{
  outline:none;
  border-color:var(--brand);
  background:#fff;
  box-shadow:0 0 0 3px rgba(15,127,110,.16);
}
.field-error{
  display:none;
  margin-top:6px;
  font-size:12.8px;
  color:#C2410C;
}
.field.invalid input,.field.invalid textarea{
  border-color:var(--accent-dark);
  background:#FFF6F1;
}
.field.invalid .field-error{display:block}
.form-success{
  display:none;
  margin-bottom:14px;
  padding:13px 16px;
  border-radius:12px;
  background:#EAF7F2;
  border:1px solid #BFE6D8;
  color:var(--brand-dark);
  font-size:14px;
  line-height:1.75;
}
.form-success.show{display:block}
.form-note{margin:12px 0 0;font-size:12.6px;color:var(--muted);line-height:1.7}

/* ---------- Footer ---------- */
.site-footer{
  background:#0B2B25;
  color:#D8E6E2;
  padding:68px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{color:#fff}
.footer-brand .brand-mark{
  background:rgba(255,255,255,.08);
  border-color:rgba(255,255,255,.18);
  color:#4FD3B4;
}
.footer-brand .brand-text{color:#fff;font-size:17px}
.footer-brand p{
  margin:16px 0 0;
  max-width:330px;
  font-size:14.2px;
  line-height:1.85;
  color:#9DB8B1;
}
.site-footer h4{
  margin:0 0 18px;
  color:#fff;
  font-size:15px;
  letter-spacing:.02em;
}
.footer-links{list-style:none;margin:0;padding:0;display:grid;gap:11px}
.footer-links a{
  display:inline-block;
  font-size:14.3px;
  color:#A9C3BC;
  transition:color var(--ease),transform var(--ease);
}
.footer-links a:hover{
  color:var(--accent);
  text-decoration:underline;
  text-underline-offset:3px;
  transform:translateX(2px);
}
.footer-contact{list-style:none;margin:0 0 18px;padding:0;display:grid;gap:10px;font-size:14.3px;color:#A9C3BC}
.footer-contact li{display:flex;gap:10px;align-items:flex-start}
.footer-contact li strong{color:#fff;font-weight:700;flex:0 0 auto}
.footer-sub{display:flex;gap:8px}
.footer-sub input{
  flex:1 1 auto;
  min-width:0;
  padding:11px 14px;
  font-family:inherit;
  font-size:14px;
  color:#fff;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.18);
  border-radius:999px;
  transition:border-color var(--ease),background var(--ease),box-shadow var(--ease);
}
.footer-sub input::placeholder{color:#7E9B94}
.footer-sub input:focus{
  outline:none;
  border-color:#4FD3B4;
  background:rgba(255,255,255,.12);
  box-shadow:0 0 0 3px rgba(79,211,180,.18);
}
.footer-sub button{
  flex:0 0 auto;
  padding:11px 20px;
  border:0;
  border-radius:999px;
  background:var(--accent);
  color:#fff;
  font-size:14px;
  font-weight:700;
  cursor:pointer;
  transition:background var(--ease),transform var(--ease);
}
.footer-sub button:hover{background:var(--accent-dark);transform:translateY(-2px)}
.footer-sub-note{margin:10px 0 0;font-size:12.6px;color:#7E9B94;line-height:1.7}
.footer-sub-note.ok{color:#4FD3B4}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:12px 24px;
  justify-content:space-between;
  align-items:center;
  padding:22px 0;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13.4px;
  color:#8AA8A1;
}
.footer-bottom a{color:#8AA8A1}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity 600ms ease,transform 600ms ease}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .nav-link{font-size:14.5px;padding:8px 10px}
  .hero-grid{gap:40px}
  .split{grid-template-columns:1.25fr .75fr}
}

@media (max-width:991px){
  .nav-shell{
    display:grid;
    grid-template-columns:42px 1fr auto;
    align-items:center;
    gap:10px;
    min-height:66px;
  }
  .nav-left{display:none}
  .nav-right .nav-link{display:none}
  .nav-right .nav-cta{display:none}
  .brand{justify-self:center}
  .menu-toggle{display:inline-flex;justify-self:end}
  .section{padding:68px 0}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-side{grid-template-columns:repeat(3,1fr);display:grid}
  .stat-card{flex-direction:column;align-items:flex-start;gap:8px;padding:16px 18px}
  .split{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr);gap:30px}
  .steps::before{display:none}
  .cross-grid{grid-template-columns:1fr 1fr}
  .cta-band{grid-template-columns:1fr;padding:40px 36px;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}

@media (max-width:768px){
  .container{padding:0 20px}
  .page-hero{padding:52px 0 60px}
  .hero-sub{font-size:16px}
  .hero-side{grid-template-columns:1fr}
  .stat-card{flex-direction:row;align-items:center;gap:14px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .feature-media img{height:220px}
  .feature-body{padding:24px 22px 28px}
  .compare{grid-template-columns:1fr}
  .quote-card{grid-template-columns:1fr;padding:26px 22px;gap:12px}
  .quote-mark{font-size:44px}
  .cross-grid{grid-template-columns:1fr}
  .cta-band{padding:32px 22px;border-radius:20px}
  .form-card{padding:22px 18px}
  .faq-q{padding:17px 18px;font-size:15.6px}
  .faq-a p{padding:0 18px 18px}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px}
  .site-footer{padding-top:52px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}

@media (max-width:520px){
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-points{flex-direction:column;gap:8px}
  .steps{grid-template-columns:1fr;gap:24px}
  .brand-text{font-size:15.5px}
  .brand-mark{width:36px;height:36px;border-radius:11px}
  .stat-num{font-size:22px}
  .compare-card{padding:24px 20px}
  .footer-sub{flex-direction:column}
  .footer-sub button{width:100%}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}