/* roulang page: index */
:root {
  --blue-700: #26517a;
  --blue-600: #346A94;
  --blue-500: #4A7FAE;
  --blue-100: #E8F1F8;
  --blue-50: #F2F8FC;
  --accent: #CE6A2E;
  --accent-deep: #A64F1B;
  --text: #1F2D38;
  --text-sub: #5B6F80;
  --text-light: #8D9CA9;
  --bg: #F5F9FC;
  --white: #ffffff;
  --border: #E1E8EF;
  --shadow-sm: 0 6px 20px rgba(28, 57, 84, 0.06);
  --shadow-md: 0 10px 32px rgba(28, 57, 84, 0.1);
  --radius-card: 12px;
  --radius-btn: 10px;
  --radius-sm: 6px;
  --space-section: 96px;
  --space-section-mb: 48px;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background: var(--white);
  color: var(--text);
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--blue-600);
  text-decoration: none;
  transition: color .2s ease;
}
a:hover {
  color: var(--blue-700);
}
button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}
input,
textarea {
  font-family: inherit;
}
ul,
ol {
  padding-left: 0;
  list-style: none;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}
.section {
  padding: var(--space-section) 0;
}
.section-tight {
  padding: 56px 0;
}
.section-head {
  max-width: 780px;
  margin-bottom: 48px;
}
.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--blue-600);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 10px;
}
.eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.center .eyebrow {
  justify-content: center;
}
.center .eyebrow::after {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.section-title {
  font-size: clamp(28px, 3.2vw, 38px);
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 18px;
  color: var(--text);
  letter-spacing: -0.4px;
}
.section-desc {
  font-size: 16px;
  color: var(--text-sub);
  line-height: 1.85;
  margin: 0;
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--blue-600);
  font-weight: 600;
  font-size: 15px;
  transition: gap .2s ease, color .2s ease;
}
.text-link:hover {
  gap: 10px;
  color: var(--blue-700);
}
.text-link svg {
  width: 16px;
  height: 16px;
  flex: none;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 24px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  line-height: 46px;
  white-space: nowrap;
  transition: background .2s, color .2s, border-color .2s, transform .15s, box-shadow .2s;
}
.btn svg {
  width: 16px;
  height: 16px;
  flex: none;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 8px 20px rgba(206, 106, 46, 0.22);
}
.btn-primary:hover {
  background: var(--accent-deep);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(206, 106, 46, 0.26);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-secondary {
  background: #fff;
  border: 1px solid #c9d6e1;
  color: var(--text);
}
.btn-secondary:hover {
  border-color: var(--blue-500);
  color: var(--blue-600);
  background: var(--blue-50);
}
.btn-text {
  padding: 0;
  min-height: auto;
  color: var(--blue-600);
  border-radius: 0;
}
.btn-text:hover {
  color: var(--blue-700);
}
.btn-block {
  width: 100%;
}
:focus-visible {
  outline: 3px solid rgba(74, 127, 174, 0.35);
  outline-offset: 2px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 1px 0 var(--border);
}
.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.logo-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: none;
}
.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--blue-500), var(--blue-600));
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 16px rgba(52, 106, 148, 0.25);
}
.logo-mark svg {
  width: 22px;
  height: 22px;
  color: #fff;
}
.logo-text {
  font-size: 22px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: 1px;
  line-height: 1.2;
}
.logo-text span {
  display: block;
  font-size: 11px;
  color: var(--text-light);
  font-weight: 500;
  letter-spacing: 2px;
}
.site-nav {
  flex: 1;
}
.nav-list {
  display: flex;
  gap: 2px;
  margin: 0;
}
.nav-list li {
  margin: 0;
}
.nav-list a {
  display: inline-block;
  padding: 9px 15px;
  border-radius: 10px;
  color: var(--text-sub);
  font-weight: 600;
  font-size: 15px;
  transition: background .2s, color .2s;
}
.nav-list a:hover {
  color: var(--blue-600);
  background: var(--blue-50);
}
.nav-list a.active {
  color: var(--blue-600);
  background: var(--blue-50);
  position: relative;
}
.nav-list a.active::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 3px;
  height: 2px;
  border-radius: 2px;
  background: var(--blue-500);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
}
.header-search {
  display: flex;
}
.header-search form {
  display: flex;
  align-items: center;
  background: var(--blue-50);
  border: 1px solid transparent;
  border-radius: 24px;
  height: 40px;
  padding: 0 8px 0 14px;
  transition: border .2s, background .2s, width .2s;
}
.header-search form:focus-within {
  border-color: var(--blue-500);
  background: #fff;
}
.header-search input {
  width: 110px;
  border: none;
  background: transparent;
  font-size: 14px;
  color: var(--text);
  padding: 0;
}
.header-search input::placeholder {
  color: var(--text-light);
}
.header-search input:focus {
  outline: none;
}
.header-search button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  color: var(--text-light);
  border-radius: 50%;
}
.header-search button:hover {
  background: rgba(74, 127, 174, 0.15);
  color: var(--blue-600);
}
.nav-cta {
  min-height: 40px;
  line-height: 40px;
  padding: 0 18px;
  font-size: 14px;
}
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  color: var(--text);
  background: var(--blue-50);
}
.nav-toggle svg {
  width: 20px;
  height: 20px;
}
.mobile-menu {
  display: none;
}

/* Hero */
.hero-sec {
  position: relative;
  background: linear-gradient(105deg, rgba(242, 248, 252, 0.98) 0%, rgba(232, 241, 248, 0.96) 40%, rgba(255, 255, 255, 0.86) 100%), url("/assets/images/backpic/back-1.png") center/cover no-repeat;
  padding: 90px 0 110px;
  overflow: hidden;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--border);
  border-radius: 30px;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--blue-600);
  letter-spacing: 1px;
  margin-bottom: 20px;
}
.hero-tag::before {
  content: "";
  width: 7px;
  height: 7px;
  background: var(--accent);
  border-radius: 50%;
}
.hero-title {
  font-size: clamp(32px, 4.2vw, 48px);
  line-height: 1.24;
  margin: 0 0 22px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -1px;
}
.hero-title em {
  font-style: normal;
  color: var(--blue-600);
}
.hero-desc {
  font-size: 18px;
  line-height: 1.85;
  color: var(--text-sub);
  max-width: 620px;
  margin: 0 0 32px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}
.hero-actions .btn {
  margin: 0;
}
.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 28px 0 0;
  padding: 0;
}
.hero-points li {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-sub);
  font-size: 14px;
}
.hero-points li svg {
  width: 16px;
  height: 16px;
  color: var(--blue-500);
  flex: none;
}
.hero-visual {
  position: relative;
  max-width: 570px;
  margin-left: auto;
}
.hero-visual img {
  width: 100%;
  border-radius: 18px;
  box-shadow: var(--shadow-md);
}
.hero-float {
  position: absolute;
  left: -18px;
  bottom: 28px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 14px;
  padding: 16px 20px;
  box-shadow: var(--shadow-md);
  display: flex;
  gap: 14px;
  align-items: center;
}
.hero-float .hf-num {
  font-size: 26px;
  font-weight: 800;
  color: var(--blue-600);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}
.hero-float .hf-label {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.4;
}

/* Pain section */
.pain-sec {
  background: var(--white);
}
.pain-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.pain-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 30px 28px;
  box-shadow: var(--shadow-sm);
  transition: transform .2s, box-shadow .2s, border-color .2s;
  display: flex;
  flex-direction: column;
}
.pain-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(74, 127, 174, 0.25);
}
.pain-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  background: var(--blue-50);
  border-radius: 9px;
  color: var(--blue-600);
  font-weight: 800;
  font-size: 14px;
  margin-bottom: 22px;
}
.pain-card h3 {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.45;
  margin: 0 0 10px;
  color: var(--text);
}
.pain-card p {
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.75;
  margin: 0 0 18px;
}
.pain-card .text-link {
  margin-top: auto;
}

/* Solution */
.solution-sec {
  background: var(--bg);
}
.solution-lead {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  margin-bottom: 26px;
}
.solution-lead .grid-x {
  align-items: stretch;
}
.solution-lead-content {
  padding: 44px 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.lead-index {
  display: inline-flex;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--blue-600);
  color: #fff;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  margin-bottom: 18px;
}
.solution-lead h3 {
  font-size: 26px;
  line-height: 1.35;
  font-weight: 800;
  margin: 0 0 14px;
  color: var(--text);
}
.solution-lead p {
  color: var(--text-sub);
  font-size: 16px;
  line-height: 1.8;
  max-width: 520px;
  margin: 0 0 24px;
}
.solution-lead-image {
  position: relative;
  min-height: 340px;
}
.solution-lead-image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.solution-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
  margin-bottom: 26px;
}
.solution-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px 30px;
  box-shadow: var(--shadow-sm);
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.solution-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(74, 127, 174, 0.25);
}
.solution-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.solution-card-top .solution-index {
  font-size: 13px;
  font-weight: 800;
  color: var(--blue-500);
  background: var(--blue-50);
  border-radius: 8px;
  padding: 4px 10px;
}
.solution-card h4 {
  font-size: 19px;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--text);
}
.solution-card p {
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.75;
  margin: 0 0 18px;
}
.solution-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin-top: 14px;
  border-top: 1px dashed var(--border);
  padding-top: 16px;
}
.solution-meta span {
  font-size: 13px;
  color: var(--text-light);
}
.solution-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
}
.solution-list-item {
  display: flex;
  gap: 18px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  align-items: flex-start;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.solution-list-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: rgba(74, 127, 174, 0.25);
}
.solution-list-icon {
  width: 46px;
  height: 46px;
  flex: none;
  background: var(--blue-50);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue-600);
}
.solution-list-icon svg {
  width: 23px;
  height: 23px;
}
.solution-list-item h5 {
  font-size: 17px;
  font-weight: 700;
  margin: 0 0 6px;
  color: var(--text);
}
.solution-list-item p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
  margin: 0;
}

/* Data */
.data-sec {
  background: #e7f0f7;
}
.data-band {
  background: linear-gradient(115deg, #2d5f87 0%, #417da8 55%, #4f8cb5 100%);
  border-radius: 16px;
  padding: 48px 52px;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}
.data-band::after {
  content: "";
  position: absolute;
  width: 280px;
  height: 280px;
  right: -90px;
  top: -110px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 50%;
  pointer-events: none;
}
.data-band-title {
  color: rgba(255, 255, 255, 0.9);
  font-size: 15px;
  letter-spacing: 2px;
  margin: 0 0 30px;
  position: relative;
  z-index: 1;
}
.data-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  position: relative;
  z-index: 1;
}
.data-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 14px;
  padding: 24px;
}
.data-card .number {
  font-size: 42px;
  font-weight: 800;
  line-height: 1.1;
  color: #fff;
  font-variant-numeric: tabular-nums;
  margin-bottom: 10px;
  letter-spacing: -0.5px;
}
.data-card .label {
  color: rgba(255, 255, 255, 0.85);
  font-size: 15px;
  line-height: 1.5;
}
.data-note {
  margin-top: 24px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 13px;
  position: relative;
  z-index: 1;
  line-height: 1.6;
}
.data-lower {
  margin-top: 34px;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 28px;
}
.data-insight {
  background: var(--white);
  border-radius: 14px;
  padding: 32px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}
.data-insight h3 {
  font-size: 20px;
  font-weight: 800;
  margin: 0 0 16px;
  color: var(--text);
}
.data-insight p {
  color: var(--text-sub);
  margin: 0 0 24px;
  line-height: 1.85;
}
.mini-bars {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 18px;
}
.mini-bar-row {
  display: grid;
  grid-template-columns: 120px 1fr 60px;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-sub);
}
.mini-bar-track {
  height: 10px;
  background: var(--blue-50);
  border-radius: 8px;
  overflow: hidden;
}
.mini-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--blue-500), var(--blue-600));
  border-radius: 8px;
}
.mini-bar-row .mini-val {
  text-align: right;
  font-weight: 700;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.data-method {
  background: #fffdf9;
  border: 1px solid #e4ddd4;
  border-radius: 14px;
  padding: 32px;
}
.data-method h3 {
  font-size: 20px;
  font-weight: 800;
  margin: 0 0 14px;
  color: var(--text);
}
.data-method p {
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.8;
  margin: 0 0 18px;
}
.data-method ul {
  margin: 0;
}
.data-method li {
  display: flex;
  gap: 8px;
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 10px;
}
.data-method li svg {
  width: 16px;
  height: 16px;
  color: var(--accent);
  flex: none;
  margin-top: 3px;
}

/* FAQ */
.faq-sec {
  background: var(--white);
}
.faq-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 60px;
  align-items: start;
}
.faq-intro {
  position: sticky;
  top: 120px;
}
.faq-intro h2 {
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.35;
  margin: 8px 0 16px;
  font-weight: 800;
}
.faq-intro p {
  color: var(--text-sub);
  line-height: 1.8;
  font-size: 16px;
}
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  background: var(--white);
  overflow: hidden;
  transition: border-color .2s, box-shadow .2s;
}
.faq-item:hover {
  border-color: rgba(74, 127, 174, 0.3);
  box-shadow: var(--shadow-sm);
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  transition: color .2s;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary::after {
  content: "+";
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: var(--blue-50);
  color: var(--blue-600);
  font-size: 20px;
  font-weight: 700;
  flex: none;
  transition: transform .2s, background .2s;
}
.faq-item[open] summary {
  color: var(--blue-700);
}
.faq-item[open] summary::after {
  content: "×";
  background: var(--blue-600);
  color: #fff;
}
.faq-answer {
  padding: 0 24px 22px;
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.85;
  border-top: 1px solid var(--border);
  margin-top: 0;
}
.faq-answer p {
  margin: 18px 0 14px;
}
.faq-answer .text-link {
  font-size: 14px;
}

/* Privacy strip */
.privacy-strip {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--blue-50);
  border: 1px solid rgba(74, 127, 174, 0.2);
  border-radius: var(--radius-card);
  padding: 20px 24px;
  margin-top: 28px;
}
.privacy-strip svg {
  width: 22px;
  height: 22px;
  flex: none;
  color: var(--blue-500);
  margin-top: 3px;
}
.privacy-strip p {
  margin: 0;
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.7;
}
.privacy-strip a {
  color: var(--blue-600);
  font-weight: 600;
}

/* CTA */
.cta-sec {
  background: var(--bg);
  border-top: 1px solid var(--border);
}
.cta-band {
  text-align: center;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 70px 40px;
  box-shadow: var(--shadow-sm);
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute;
  right: -50px;
  top: -70px;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(74, 127, 174, 0.12) 0%, rgba(74, 127, 174, 0) 70%);
}
.cta-band h2 {
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 800;
  line-height: 1.35;
  margin: 0 0 18px;
}
.cta-band h2 em {
  color: var(--blue-600);
  font-style: normal;
}
.cta-band p {
  max-width: 620px;
  margin: 0 auto 32px;
  color: var(--text-sub);
  font-size: 17px;
  line-height: 1.85;
}

/* News */
.news-sec {
  background: var(--white);
  padding-bottom: 60px;
}
.news-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 34px;
}
.news-item {
  display: grid;
  grid-template-columns: 120px 150px 1fr auto;
  gap: 16px;
  align-items: center;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 20px 22px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .2s, transform .2s, border-color .2s;
}
.news-item:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(74, 127, 174, 0.25);
  transform: translateY(-2px);
}
.news-time {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--blue-50);
  color: var(--blue-600);
  font-size: 14px;
  font-weight: 700;
  border-radius: 10px;
  min-height: 40px;
  padding: 6px 8px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}
.news-cat {
  display: inline-flex;
  justify-content: center;
  background: #f7efea;
  color: var(--accent);
  border-radius: 8px;
  padding: 4px 12px;
  font-size: 13px;
  font-weight: 600;
  width: fit-content;
}
.news-main {
  min-width: 0;
}
.news-main h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
  margin: 0 0 6px;
}
.news-main h3 a {
  color: var(--text);
  display: inline;
}
.news-main h3 a:hover {
  color: var(--blue-600);
}
.news-main p {
  margin: 0;
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-read {
  font-size: 14px;
  white-space: nowrap;
}
.empty-list {
  grid-column: 1 / -1;
  background: var(--blue-50);
  border: 1px dashed rgba(74, 127, 174, 0.3);
  border-radius: var(--radius-card);
  padding: 44px 20px;
  text-align: center;
  color: var(--text-sub);
  font-size: 16px;
}

/* Footer */
.site-footer {
  background: var(--blue-50);
  border-top: 1px solid var(--border);
}
.footer-main {
  padding: 64px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 40px;
}
.footer-brand .logo-link {
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.8;
  max-width: 300px;
  margin: 14px 0 0;
}
.footer-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 18px;
}
.footer-links li {
  margin-bottom: 10px;
}
.footer-links a {
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.5;
}
.footer-links a:hover {
  color: var(--blue-600);
}
.footer-contact p {
  margin: 0 0 10px;
  font-size: 14px;
  color: var(--text-sub);
  display: flex;
  gap: 8px;
  align-items: center;
}
.footer-contact svg {
  width: 16px;
  height: 16px;
  color: var(--blue-500);
}
.footer-contact .qr-placeholder {
  width: 90px;
  height: 90px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  font-size: 12px;
  text-align: center;
  margin-top: 8px;
}
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
}
.footer-bottom-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-light);
}
.footer-bottom-inner a {
  color: var(--text-light);
}
.footer-bottom-inner a:hover {
  color: var(--blue-600);
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1200;
  background: rgba(26, 42, 56, 0.56);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s, visibility .25s;
}
.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}
.modal-box {
  background: var(--white);
  border-radius: 18px;
  width: 100%;
  max-width: 600px;
  max-height: calc(100vh - 60px);
  overflow-y: auto;
  padding: 36px;
  position: relative;
  box-shadow: 0 30px 80px rgba(22, 40, 56, 0.25);
  transform: translateY(16px);
  transition: transform .3s;
}
.modal-overlay.open .modal-box {
  transform: translateY(0);
}
.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--blue-50);
  color: var(--text-sub);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}
.modal-close:hover {
  background: var(--blue-100);
  color: var(--blue-700);
}
.modal-box h3 {
  font-size: 26px;
  font-weight: 800;
  margin: 0 0 12px;
}
.modal-box > p {
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.7;
  margin: 0 0 24px;
}
.modal-form .form-group {
  margin-bottom: 18px;
}
.modal-form label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}
.modal-form input[type="text"],
.modal-form textarea {
  width: 100%;
  border: 1px solid #d3dce4;
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 15px;
  color: var(--text);
  background: #fff;
  transition: border-color .2s, box-shadow .2s;
}
.modal-form input[type="text"]:focus,
.modal-form textarea:focus {
  outline: none;
  border-color: var(--blue-500);
  box-shadow: 0 0 0 3px rgba(74, 127, 174, 0.16);
}
.modal-form textarea {
  min-height: 100px;
  resize: vertical;
}
.check-line {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 13px;
  color: var(--text-sub);
  margin-bottom: 20px;
  cursor: pointer;
}
.check-line input[type="checkbox"] {
  margin-top: 2px;
  accent-color: var(--blue-500);
}
.modal-protect {
  margin-top: 18px;
  background: var(--blue-50);
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.7;
}
.modal-protect svg {
  width: 16px;
  height: 16px;
  color: var(--blue-500);
  vertical-align: -2px;
  margin-right: 6px;
}
.form-success {
  text-align: center;
  padding: 40px 0 30px;
}
.form-success .success-icon {
  width: 58px;
  height: 58px;
  background: #e7f4ec;
  color: #3c835f;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}
.form-success .success-icon svg {
  width: 28px;
  height: 28px;
}
.form-success h4 {
  font-size: 20px;
  font-weight: 800;
  margin: 0 0 10px;
}
.form-success p {
  color: var(--text-sub);
  margin: 0;
}

/* Responsive */
@media screen and (max-width: 1023px) {
  .nav-toggle {
    display: inline-flex;
  }
  .site-nav {
    display: none;
  }
  .nav-cta {
    display: none;
  }
  .header-search {
    display: none;
  }
  .mobile-menu {
    display: block;
    max-height: 0;
    overflow: hidden;
    transition: max-height .3s ease;
  }
  .mobile-menu.open {
    max-height: 420px;
  }
  .mobile-menu-inner {
    padding: 18px 24px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 14px;
  }
  .mobile-nav-search form {
    display: flex;
    background: var(--blue-50);
    border-radius: 24px;
    overflow: hidden;
    padding: 0 8px 0 14px;
  }
  .mobile-nav-search input {
    flex: 1;
    border: none;
    background: transparent;
    height: 44px;
    font-size: 14px;
  }
  .mobile-nav-search input:focus {
    outline: none;
  }
  .mobile-nav-search button {
    color: var(--blue-600);
    padding: 0 6px;
  }
  .mobile-nav-list {
    margin: 0;
  }
  .mobile-nav-list a {
    display: block;
    padding: 12px 8px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-sub);
    border-bottom: 1px solid var(--border);
  }
  .mobile-nav-list a.active,
  .mobile-nav-list a:hover {
    color: var(--blue-600);
    background: var(--blue-50);
    border-radius: 8px;
  }
  .mobile-menu-btn {
    text-align: left;
    margin-top: 4px;
  }
  .hero-sec {
    padding: 60px 0 76px;
  }
  .hero-visual {
    margin-top: 40px;
    margin-left: 0;
  }
  .faq-layout {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .faq-intro {
    position: static;
  }
}

@media screen and (max-width: 767px) {
  .section {
    padding: var(--space-section-mb) 0;
  }
  .header-inner {
    min-height: 64px;
    gap: 10px;
  }
  .logo-text {
    font-size: 18px;
  }
  .logo-mark {
    width: 32px;
    height: 32px;
  }
  .hero-title {
    font-size: 30px;
    letter-spacing: -0.5px;
  }
  .hero-desc {
    font-size: 16px;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .hero-float {
    left: 10px;
    bottom: 10px;
    padding: 12px 14px;
  }
  .section-head {
    margin-bottom: 30px;
  }
  .section-title {
    font-size: 27px;
  }
  .pain-cards {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .solution-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .solution-list {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .solution-lead-content {
    padding: 26px 22px;
  }
  .solution-lead h3 {
    font-size: 22px;
  }
  .solution-lead-image {
    min-height: 220px;
  }
  .data-band {
    padding: 30px 20px;
  }
  .data-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .data-card .number {
    font-size: 32px;
  }
  .data-lower {
    grid-template-columns: 1fr;
    gap: 18px;
    margin-top: 20px;
  }
  .data-insight,
  .data-method {
    padding: 22px 20px;
  }
  .mini-bar-row {
    grid-template-columns: 86px 1fr 48px;
  }
  .cta-band {
    padding: 48px 22px;
  }
  .news-item {
    grid-template-columns: 1fr;
    padding: 18px;
  }
  .news-cat {
    width: fit-content;
  }
  .news-main p {
    -webkit-line-clamp: 2;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .modal-box {
    padding: 28px 20px;
  }
  .faq-item summary {
    padding: 16px 16px;
    font-size: 15px;
  }
  .faq-answer {
    padding: 0 16px 18px;
  }
  .privacy-strip {
    flex-direction: column;
  }
}

@media screen and (max-width: 520px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .btn {
    font-size: 14px;
    padding: 0 18px;
  }
  .data-cards {
    grid-template-columns: 1fr;
  }
  .data-card {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 14px;
  }
  .data-card .number {
    font-size: 30px;
    margin: 0;
  }
  .data-card .label {
    font-size: 14px;
  }
}

/* roulang page: article */
:root{
  --brand:#3f739b;
  --brand-deep:#2f5d84;
  --brand-very-deep:#244b6d;
  --brand-soft:#e9f2f8;
  --action:#c9631e;
  --action-deep:#aa4e17;
  --bg-white:#ffffff;
  --bg-soft:#f5f9fc;
  --text-main:#1e2a35;
  --text-muted:#5c7182;
  --text-light:#8ea1b0;
  --line:#dce5ed;
  --radius:12px;
  --radius-sm:8px;
  --radius-lg:20px;
  --shadow-card:0 6px 20px rgba(28,57,84,.06);
  --shadow-hover:0 12px 34px rgba(28,57,84,.12);
  --header-h:84px;
  --content-width:1200px;
  --read-width:820px;
  --font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-synthesis:none;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:var(--font-family);
  background:var(--bg-white);
  color:var(--text-main);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-deep)}
button{font-family:inherit;border:none;background:none;cursor:pointer}
input,textarea,select{font-family:inherit;font-size:1rem}
ul,ol{list-style:none}
.container{max-width:var(--content-width);margin:0 auto;padding:0 24px}
.skip-link{
  position:fixed;left:16px;top:-80px;z-index:9999;
  background:#fff;color:var(--brand-deep);padding:10px 18px;
  border-radius:0 0 10px 10px;box-shadow:var(--shadow-card);
  transition:top .25s ease;
}
.skip-link:focus{top:0}

/* header */
.site-header{
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:200;
  backdrop-filter:blur(10px);
}
.header-inner{
  height:var(--header-h);
  display:flex;
  align-items:center;
  gap:22px;
}
.logo-link{
  display:inline-flex;
  align-items:center;
  gap:11px;
  color:var(--text-main);
  flex-shrink:0;
}
.logo-link:hover{color:var(--text-main)}
.logo-mark{
  width:42px;height:42px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  background:linear-gradient(145deg,var(--brand),var(--brand-deep));
  border-radius:12px;
  box-shadow:0 8px 18px rgba(51,111,151,.22);
}
.logo-mark svg{width:23px;height:23px}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-text strong{font-size:20px;font-weight:700;letter-spacing:.2px}
.logo-text span{font-size:12px;color:var(--text-light);letter-spacing:.6px}
.site-nav{margin-left:14px}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-list a{
  display:inline-flex;
  align-items:center;
  padding:10px 16px;
  border-radius:999px;
  font-size:15px;
  font-weight:500;
  color:var(--text-muted);
  transition:color .2s ease,background .2s ease;
}
.nav-list a:hover{color:var(--brand-deep);background:var(--brand-soft)}
.nav-list a.active{color:var(--brand-deep);background:var(--brand-soft)}
.header-tools{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:10px;
}
.header-search{
  display:flex;
  align-items:center;
  background:var(--bg-soft);
  border:1px solid transparent;
  border-radius:999px;
  padding:4px 6px;
  transition:border .2s ease;
}
.header-search:hover,.header-search:focus-within{border-color:var(--brand)}
.header-search svg{
  width:17px;height:17px;
  margin:0 8px;
  color:var(--text-light);
  flex-shrink:0;
}
.header-search input{
  width:142px;
  border:none;
  background:transparent;
  outline:none;
  color:var(--text-main);
  font-size:14px;
}
.header-search input::placeholder{color:var(--text-light)}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 24px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  line-height:1;
  transition:transform .18s ease,background .2s ease,border .2s ease,box-shadow .2s ease;
}
.btn:focus-visible,.btn:focus{outline:3px solid rgba(63,115,155,.3);outline-offset:2px}
.btn-primary{background:var(--action);color:#fff}
.btn-primary:hover{background:var(--action-deep);color:#fff;transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:#fff;
  color:var(--brand-deep);
  border:1px solid var(--line);
}
.btn-ghost:hover{color:var(--brand-deep);border-color:var(--brand);box-shadow:0 4px 16px rgba(63,115,155,.12)}
.mobile-toggle{
  width:44px;height:44px;
  border-radius:10px;
  display:none;
  align-items:center;
  justify-content:center;
  color:var(--text-main);
  background:var(--bg-soft);
}
.mobile-toggle svg{width:22px;height:22px}
.mobile-panel{
  display:none;
  position:absolute;
  top:var(--header-h);
  left:0;
  right:0;
  background:#fff;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  z-index:150;
  padding:20px;
  box-shadow:0 22px 40px rgba(0,0,0,.08);
}
.mobile-panel.open{display:block;animation:panelFade .2s ease}
@keyframes panelFade{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
.mobile-nav-list{display:flex;flex-direction:column;gap:2px}
.mobile-nav-list a{
  display:block;
  padding:13px 16px;
  border-radius:12px;
  color:var(--text-muted);
  font-weight:500;
}
.mobile-nav-list a.active{color:var(--brand-deep);background:var(--brand-soft)}
.mobile-search{margin:12px 0 10px}
.mobile-search form{
  display:flex;
  background:var(--bg-soft);
  border-radius:12px;
  padding:6px 10px;
}
.mobile-search svg{width:18px;height:18px;fill:none}
.mobile-search input{
  border:none;
  background:transparent;
  width:100%;
  padding:8px;
  outline:none;
}
.mobile-panel .btn{width:100%}
.mobile-panel-search{
  display:none;
  align-items:center;
  gap:10px;
}

/* article hero */
.article-hero{
  position:relative;
  background-color:#e2ebf2;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  color:#fff;
}
.article-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(120deg,rgba(28,45,63,.92),rgba(36,73,99,.72));
}
.article-hero .container{position:relative;z-index:2;padding-top:52px;padding-bottom:58px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;margin-bottom:36px;color:rgba(255,255,255,.85)}
.crumb a{color:rgba(255,255,255,.9)}
.crumb a:hover{color:#fff}
.crumb-arrow{opacity:.65}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:6px 14px;
  border-radius:6px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.25);
  color:#fff;
  font-size:13px;
  font-weight:600;
  letter-spacing:.3px;
  margin-bottom:21px;
}
.article-h1{
  font-size:clamp(30px,4.6vw,42px);
  line-height:1.3;
  font-weight:700;
  letter-spacing:-.2px;
  max-width:900px;
  color:#fff;
  margin-bottom:24px;
  overflow-wrap:break-word;
}
.article-meta{display:flex;flex-wrap:wrap;gap:16px 30px;align-items:center;font-size:14px;color:rgba(255,255,255,.9)}
.meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-item svg{width:17px;height:17px;color:rgba(255,255,255,.75)}

/* article main */
.article-main{
  background:var(--bg-soft);
  padding:44px 0 80px;
}
.reading-wrap{
  max-width:var(--read-width);
  margin:0 auto;
}
.article-card{
  position:relative;
  background:#fff;
  border-radius:18px;
  padding:clamp(28px,5vw,66px);
  box-shadow:var(--shadow-card);
  border:1px solid rgba(220,229,237,.75);
  transform:translateY(-12px);
}
.article-content{font-size:17px;line-height:1.95;color:#25313d}
.article-content a{text-decoration:underline;text-decoration-color:rgba(63,115,155,.3);text-underline-offset:5px}
.article-content h2{
  font-size:clamp(23px,3vw,29px);
  color:var(--brand-very-deep);
  margin:40px 0 16px;
  line-height:1.45;
  padding-bottom:10px;
  border-bottom:1px solid var(--line);
}
.article-content h3{
  font-size:clamp(20px,2.4vw,24px);
  color:var(--text-main);
  margin:32px 0 12px;
  line-height:1.5;
}
.article-content h4{
  font-size:19px;
  color:var(--text-main);
  margin:24px 0 10px;
}
.article-content p{margin:0 0 22px;overflow-wrap:break-word}
.article-content ul,.article-content ol{margin:0 0 24px;padding-left:26px}
.article-content ul{list-style:disc}
.article-content ol{list-style:decimal}
.article-content li{margin-bottom:9px}
.article-content blockquote{
  margin:26px 0;
  padding:20px 26px;
  border-left:4px solid var(--brand);
  background:var(--brand-soft);
  border-radius:0 12px 12px 0;
  color:#2d4a61;
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{border-radius:12px;margin:24px 0;box-shadow:0 8px 24px rgba(28,57,84,.08)}
.article-content iframe{border-radius:12px;margin:24px 0;width:100%}
.article-content pre{
  background:#17212f;
  color:#f0f5f8;
  border-radius:14px;
  padding:22px;
  overflow-x:auto;
  font-size:14px;
  line-height:1.7;
  margin:24px 0;
}
.article-content code{
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  background:#edf2f7;
  color:#255378;
  border-radius:5px;
  padding:.15em .4em;
  font-size:.92em;
}
.article-content pre code{background:transparent;color:inherit;padding:0}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-content th{
  background:var(--line);
  text-align:left;
  font-weight:600;
}
.article-content th,.article-content td{
  border:1px solid var(--line);
  padding:12px 14px;
  vertical-align:middle;
}
.article-content hr{border:none;border-top:1px solid var(--line);margin:38px 0}
.article-divider{height:1px;background:var(--line);margin:40px 0}
.article-cta-note{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  background:var(--bg-soft);
  border:1px solid var(--line);
  border-radius:14px;
  padding:20px 22px;
  margin:18px 0 0;
  font-size:14px;
  color:var(--text-muted);
}
.article-cta-note .btn{min-height:44px;padding:0 18px;font-size:14px}
.article-back{
  display:flex;
  justify-content:flex-end;
}
.article-back a{font-size:14px}
.missing-box{
  text-align:center;
  padding:78px 24px 60px;
}
.missing-icon{
  width:72px;height:72px;
  margin:0 auto 26px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:var(--brand-soft);
  color:var(--brand);
  border-radius:22px;
}
.missing-icon svg{width:36px;height:36px}
.missing-box h2{font-size:28px;margin-bottom:14px}
.missing-box p{color:var(--text-muted);font-size:16px;margin-bottom:28px}
.missing-box .btn{background:var(--brand);color:#fff}

/* extension cards */
.guide-section{
  background:var(--bg-white);
  padding:28px 0 76px;
}
.guide-container{max-width:var(--read-width);margin:0 auto}
.guide-section h2{
  font-size:22px;
  font-weight:700;
  color:var(--text-main);
  margin:0 0 6px;
}
.guide-sub{color:var(--text-muted);margin-bottom:26px;font-size:14px}
.guide-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.guide-card{
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  background:#fff;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.guide-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(63,115,155,.26)}
.guide-card img{aspect-ratio:16/10;object-fit:cover;width:100%}
.guide-body{padding:19px}
.guide-body h3{font-size:17px;margin-bottom:8px;font-weight:600}
.guide-body p{color:var(--text-muted);font-size:14px;line-height:1.65;margin-bottom:12px}
.guide-link{
  display:inline-flex;
  align-items:center;
  gap:5px;
  font-weight:600;
  font-size:14px;
}
.guide-link svg{width:15px;height:15px;transition:transform .2s ease}
.guide-link:hover svg{transform:translateX(4px)}

/* footer */
.site-footer{
  background:#eeeef0;
  color:#3d4952;
  border-top:1px solid #dde3e9;
}
.footer-main{padding:56px 0 16px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:24px}
.footer-brand p{font-size:14px;color:#5f6c76;max-width:230px;margin-top:12px;line-height:1.8}
.footer-title{
  font-size:16px;font-weight:600;color:#2a3644;
  margin-bottom:14px;
  padding-top:6px;
}
.footer-links li{margin-bottom:9px}
.footer-links a{color:#5f6f7b;font-size:14px;transition:color .15s ease,padding-left .15s}
.footer-links a:hover{color:#3d7ea6;padding-left:4px}
.footer-contact{display:flex;flex-direction:column;gap:10px}
.footer-contact p{
  display:flex;
  align-items:center;
  gap:8px;
  color:#5f6c76;
  font-size:14px;
  margin:0;
}
.footer-contact svg{width:16px;height:16px;color:#7c8f9e}
.qr-placeholder{
  margin-top:10px;
  width:84px;
  height:84px;
  border:1px dashed #cbd4dc;
  background:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  font-size:12px;
  color:#899caa;
  border-radius:14px;
}
.footer-bottom{border-top:1px solid #d6dce3;padding:17px 0;background:rgba(255,255,255,.45)}
.footer-bottom-inner{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:#6a7984;gap:12px;flex-wrap:wrap}
.footer-bottom-inner a{color:#56809f;font-weight:500}
.footer-bottom-inner a:hover{color:var(--brand-deep)}

/* modal */
.modal-overlay{
  position:fixed;
  inset:0;
  background:rgba(15,26,38,.56);
  z-index:400;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:24px;
  opacity:0;
  visibility:hidden;
  transition:opacity .22s ease,visibility .22s ease;
}
.modal-overlay.open{opacity:1;visibility:visible}
.modal-panel{
  background:#fff;
  border-radius:20px;
  max-width:620px;
  width:100%;
  padding:34px;
  box-shadow:0 30px 80px rgba(0,0,0,.2);
  max-height:90vh;
  overflow:auto;
  transform:translateY(16px);
  transition:transform .22s ease;
}
.modal-overlay.open .modal-panel{transform:none}
.modal-head{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:22px}
.modal-head h3{font-size:26px;font-weight:700;line-height:1.3}
.modal-head p{color:var(--text-muted);font-size:14px;margin-top:6px}
.modal-close{
  width:38px;height:38px;
  border-radius:10px;
  background:var(--bg-soft);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--text-muted);
  flex-shrink:0;
  transition:color .2s,background .2s;
}
.modal-close:hover{color:#fff;background:var(--action)}
.modal-close svg{width:18px;height:18px}
.form-field{margin-bottom:16px}
.form-field label{
  display:block;
  font-size:14px;
  color:#43515d;
  font-weight:500;
  margin-bottom:8px;
}
.form-field input,.form-field select,.form-field textarea{
  width:100%;
  min-height:46px;
  border:1px solid var(--line);
  border-radius:10px;
  padding:11px 14px;
  background:#fbfdff;
  font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
  color:var(--text-main);
}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(63,115,155,.12);
}
.form-field textarea{min-height:110px;resize:vertical}
.agree-line{
  display:flex;
  gap:9px;
  align-items:flex-start;
  margin:6px 0 18px;
  font-size:13px;
  color:var(--text-muted);
}
.agree-line input{margin-top:4px;width:auto;min-height:auto}
 .modal-panel .btn-primary{width:100%}
.modal-success{
  display:none;
  background:var(--brand-soft);
  border:1px solid rgba(63,115,155,.18);
  border-radius:10px;
  padding:14px;
  text-align:center;
  color:var(--brand-deep);
  font-weight:500;
  font-size:14px;
  margin-bottom:0;
}

/* responsive */
@media (max-width:1180px){
  .header-inner{gap:12px}
  .nav-list a{padding:9px 12px;font-size:14px}
  .header-search input{width:118px}
}
@media (max-width:1024px){
  .container{padding:0 20px}
  .site-nav{display:none}
  .mobile-search{display:block}
  .mobile-toggle{display:inline-flex}
  .article-card{padding:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
}
@media (max-width:760px){
  :root{--header-h:76px}
  .header-tools .header-search{display:none}
  .header-tools .btn-ghost{display:none}
  .footer-grid{grid-template-columns:1fr}
  .article-h1{font-size:29px}
  .article-meta{gap:10px 16px;font-size:13px}
  .article-card{border-radius:0;padding:24px 18px}
  .article-content{font-size:16px}
  .guide-cards{grid-template-columns:1fr}
  .article-cta-note .btn{width:100%}
  .article-hero .container{padding-top:36px;padding-bottom:40px}
  .footer-bottom-inner{flex-direction:column;justify-content:center;text-align:center}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .article-content{font-size:15px}
  .article-content th,.article-content td{display:block;border:none}
  .article-card{padding:22px 16px}
  .modal-panel{padding:24px;border-radius:16px}
}

/* roulang page: category1 */
:root{
  --primary:#4A7FAE;
  --primary-dark:#346A94;
  --primary-deep:#1E4663;
  --primary-soft:#E9F1F7;
  --accent:#CE6A2E;
  --accent-dark:#AC541E;
  --accent-soft:#FAEFE7;
  --bg:#F5F9FC;
  --white:#FFFFFF;
  --ink:#1F2D38;
  --muted:#5B6F80;
  --faint:#8D9CA9;
  --line:#E0E7EE;
  --line-strong:#C4D1DC;
  --radius-xl:20px;
  --radius-md:12px;
  --radius-sm:8px;
  --radius-xs:6px;
  --shadow-sm:0 6px 20px rgba(28,57,84,.06);
  --shadow-md:0 10px 32px rgba(28,57,84,.1);
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --header-h:76px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 16px)}
body{font-family:var(--font-cn);background:var(--bg);color:var(--ink);line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased}
ul,ol{list-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease}
img{display:block;max-width:100%;height:auto}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
p{margin:0}
h1,h2,h3,h4{font-weight:700;line-height:1.25;margin:0;color:var(--ink)}
::selection{background:rgba(74,127,174,.2)}
.grid-container{max-width:1200px;margin-left:auto;margin-right:auto;padding-left:clamp(18px,4vw,32px);padding-right:clamp(18px,4vw,32px)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid rgba(74,127,174,.35);outline-offset:3px;border-radius:var(--radius-xs)}
.section{padding:clamp(64px,7vw,96px) 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--accent);letter-spacing:.08em}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px;display:inline-block}
.section-head{max-width:780px;margin-bottom:56px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head.center .eyebrow::before{display:none}
.section-head h2{font-size:clamp(26px,3vw,36px);margin-top:14px;letter-spacing:-.01em}
.section-head p{margin-top:18px;color:var(--muted);font-size:16px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:0 28px;border-radius:100px;font-weight:600;font-size:15px;line-height:1;border:1px solid transparent;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;vertical-align:middle;text-align:center}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 22px rgba(206,106,46,.22)}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-1px);box-shadow:0 10px 26px rgba(206,106,46,.28);color:#fff}
.btn-secondary{background:var(--white);color:var(--primary-dark);border-color:var(--line-strong)}
.btn-secondary:hover{border-color:var(--primary);color:var(--primary-dark);background:var(--primary-soft);transform:translateY(-1px)}
.btn-dark{background:var(--primary-deep);color:#fff;border-color:var(--primary-deep)}
.btn-light{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.4)}
.btn-light:hover{background:#fff;color:var(--primary-deep);border-color:#fff}
.btn-lg{min-height:54px;padding:0 34px;font-size:16px}
.btn-sm{min-height:42px;padding:0 20px;font-size:14px}
.btn .fa-arrow-right{transition:transform .2s ease}
.btn:hover .fa-arrow-right{transform:translateX(4px)}
.text-link{display:inline-flex;align-items:center;gap:7px;font-weight:600;color:var(--primary-dark);font-size:15px}
.text-link:hover{color:var(--accent)}
.text-link .fa-arrow-right-long{transition:transform .2s ease}
.text-link:hover .fa-arrow-right-long{transform:translateX(4px)}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:900;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);box-shadow:0 1px 0 rgba(255,255,255,.8)}
.header-inner{display:flex;align-items:center;min-height:var(--header-h);gap:24px}
.logo-link{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:40px;height:40px;border-radius:12px;background:linear-gradient(145deg,var(--primary-dark),var(--primary));color:#fff;display:inline-flex;align-items:center;justify-content:center;box-shadow:0 8px 18px rgba(41,93,133,.25)}
.logo-mark svg{width:24px;height:24px}
.logo-text{font-size:20px;font-weight:700;letter-spacing:.02em;color:var(--ink);line-height:1}
.logo-text span{display:block;font-size:11px;font-weight:500;letter-spacing:.1em;color:var(--faint);margin-top:3px}
.site-nav{margin-left:auto}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-list a{display:inline-flex;align-items:center;padding:12px 2px;margin:0 12px;font-weight:600;font-size:15px;color:var(--ink);border-bottom:3px solid transparent;transition:color .2s ease,border-color .2s ease}
.nav-list a:hover{color:var(--primary)}
.nav-list a.active{color:var(--primary-dark);border-bottom-color:var(--primary)}
.header-tools{display:flex;align-items:center;gap:14px;margin-left:4px}
.search-box{height:40px;width:170px;border:1px solid var(--line);border-radius:100px;background:var(--bg);display:flex;align-items:center;gap:8px;padding:0 14px}
.search-box i{color:var(--faint);font-size:14px}
.search-box input{width:100%;border:0;background:transparent;font-size:14px;min-width:0}
.search-box input:focus{outline:none}
.nav-burger{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);align-items:center;justify-content:center;background:#fff;color:var(--primary-dark);font-size:20px}
.header-tools .btn{white-space:nowrap}
@media(max-width:1100px){
  .search-box{width:130px}
}
@media(max-width:1023px){
  .site-nav{position:fixed;top:0;right:0;width:min(320px,86vw);height:100dvh;background:#fff;z-index:998;transform:translateX(102%);transition:transform .3s ease;box-shadow:-20px 0 50px rgba(20,45,70,.14);border-left:1px solid var(--line);padding-top:92px}
  .site-nav.open{transform:translateX(0)}
  .nav-list{flex-direction:column;align-items:stretch;gap:4px;padding:0 22px}
  .nav-list a{display:block;padding:14px 10px;margin:0;border-radius:12px;border-bottom:0;font-size:16px;color:var(--ink)}
  .nav-list a.active{background:var(--primary-soft);color:var(--primary-dark)}
  .nav-list a:hover{background:var(--bg)}
  .nav-burger{display:inline-flex;z-index:999}
  .site-nav.open + .header-tools .nav-burger{position:fixed;right:14px}
  .header-tools{display:flex;align-items:center;gap:10px}
  .header-tools .btn-sm{padding:0 16px}
}
@media(max-width:640px){
  .search-box{display:none}
  .header-inner{gap:10px}
  .logo-text{font-size:18px}
  .header-tools .btn{min-height:40px;padding:0 14px;font-size:14px}
}

/* hero */
.cap-hero{position:relative;overflow:hidden;background:linear-gradient(120deg,#F7FBFE 8%,var(--primary-soft) 56%,#E4EEF6 100%);border-bottom:1px solid rgba(226,236,245,.8)}
.cap-hero::before{content:"";position:absolute;inset:0;background:url("/assets/images/backpic/back-1.png") right top/cover no-repeat;opacity:.3;z-index:0}
.cap-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(249,252,254,.92),rgba(245,249,252,.65) 50%,rgba(228,238,246,.72));z-index:1}
.hero-inner{position:relative;z-index:2;padding:clamp(62px,8vw,110px) 0 80px}
.hero-main .hero-overline{display:inline-flex;align-items:center;gap:9px;background:#fff;border:1px solid rgba(74,127,174,.2);color:var(--primary-dark);border-radius:100px;padding:8px 16px;font-size:13px;font-weight:600;box-shadow:var(--shadow-sm)}
.hero-main h1{font-size:clamp(31px,4vw,48px);line-height:1.18;margin:24px 0 20px;letter-spacing:-.02em}
.hero-main h1 em{font-style:normal;color:var(--primary-dark)}
.hero-sub{font-size:clamp(15px,1.4vw,17px);line-height:1.8;color:var(--muted);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:34px}
.hero-actions .btn-secondary{background:rgba(255,255,255,.8)}
.hero-meta{display:flex;flex-wrap:wrap;gap:18px;margin-top:30px;color:var(--muted);font-size:13px}
.hero-meta li{display:inline-flex;align-items:center;gap:7px}
.hero-meta i{color:var(--primary)}
.hero-visual{position:relative;display:flex;justify-content:center;padding-top:16px}
.hub-visual{width:100%;max-width:500px;margin-left:auto}
.source-caps{display:flex;flex-wrap:wrap;justify-content:center;gap:10px}
.source-caps span{background:#fff;border:1px solid rgba(74,127,174,.18);border-radius:100px;padding:8px 16px;font-size:13px;font-weight:600;color:var(--primary-dark);box-shadow:0 4px 14px rgba(28,57,84,.04)}
.hub-arrow{width:2px;height:34px;background:repeating-linear-gradient(180deg,var(--primary) 0 5px,transparent 5px 10px);margin:12px auto;opacity:.5}
.hub-block{text-align:center;background:#fff;border:1px solid rgba(74,127,174,.25);border-radius:24px;padding:26px 18px;box-shadow:var(--shadow-md);position:relative}
.hub-block::after{content:"";position:absolute;left:22px;right:22px;top:-6px;height:1px;background:linear-gradient(90deg,transparent,rgba(74,127,174,.4),transparent)}
.hub-block .hub-icon{width:42px;height:42px;border-radius:12px;background:var(--primary-dark);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:8px}
.hub-block strong{display:block;font-size:20px;font-weight:700;color:var(--primary-deep)}
.hub-block small{display:block;margin-top:8px;color:var(--muted);font-size:13px;letter-spacing:.04em}
.hub-outcome{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:18px}
.hub-outcome span{background:rgba(255,255,255,.7);border:1px solid var(--line);border-radius:100px;padding:8px 10px;font-size:13px;font-weight:600;color:var(--ink);text-align:center;backdrop-filter:blur(4px)}
.hub-outcome .fa-check{color:var(--primary)}
@media(max-width:1023px){
  .hero-visual{margin-top:36px}
}
@media(max-width:640px){
  .cap-hero::before{background-position:left top}
  .hero-inner{padding:52px 0 60px}
  .hero-actions .btn{width:100%}
  .hub-outcome{grid-template-columns:1fr}
}

/* 体系总览 */
.overview-section{background:#fff}
.flow-wrap{position:relative;margin-top:20px}
.flow-list{display:grid;grid-template-columns:repeat(6,1fr);gap:20px}
.flow-item{border-top:2px solid var(--line);padding-top:18px;position:relative;transition:border-color .2s ease}
.flow-item:hover{border-color:var(--primary)}
.flow-item::before{content:"";position:absolute;top:-6px;left:0;width:10px;height:10px;border-radius:50%;background:var(--primary);border:3px solid #fff;box-shadow:0 0 0 2px var(--primary)}
.flow-step{display:inline-flex;align-items:center;background:var(--primary-soft);color:var(--primary-dark);font-size:12px;font-weight:700;padding:5px 11px;border-radius:100px;margin-bottom:12px}
.flow-icon{font-size:24px;color:var(--primary);margin-bottom:8px}
.flow-item h3{font-size:17px;margin-bottom:8px}
.flow-item p{font-size:14px;color:var(--muted);line-height:1.6}
@media(max-width:1023px){
  .flow-list{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:640px){
  .flow-list{grid-template-columns:1fr}
  .flow-item{padding-left:26px;border-top:0;border-left:2px solid var(--line);padding-top:2px}
  .flow-item::before{left:-6px;top:4px}
}

/* 能力分支 */
.capability-section{background:var(--bg)}
.feat-wrap{padding:36px 0}
.feat-wrap + .feat-wrap{border-top:1px solid var(--line)}
.feat-photo{overflow:hidden;border-radius:var(--radius-md);box-shadow:var(--shadow-sm);background:#fff}
.feat-photo img{width:100%;height:100%;object-fit:cover;min-height:280px;transition:transform .35s ease}
.feat-wrap:hover .feat-photo img{transform:scale(1.02)}
.feat-body{display:flex;flex-direction:column;justify-content:center;padding-left:clamp(24px,5vw,68px)}
.feat-counter{font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--accent);margin-bottom:12px}
.feat-body h2{font-size:clamp(22px,2.4vw,30px);line-height:1.25;margin-bottom:14px}
.feat-body p{color:var(--muted);line-height:1.8;font-size:15px;max-width:540px}
.feat-points{margin-top:20px;display:grid;gap:10px}
.feat-points li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--ink)}
.feat-points i{color:var(--primary);margin-top:4px}
.feat-textlink{margin-top:18px}
.feat-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.feat-tags span{font-size:12px;font-weight:600;background:#fff;border:1px solid var(--line);color:var(--muted);border-radius:100px;padding:5px 13px}
@media(max-width:1023px){
  .feat-wrap .grid-x > .cell{width:100%}
  .feat-photo img{min-height:0}
  .feat-body{padding-left:16px;padding-top:28px}
}
@media(max-width:640px){
  .feat-wrap{padding:28px 0}
  .feat-photo{border-radius:var(--radius-md)}
  .feat-photo img{min-height:210px}
  .feat-body{padding-left:0}
}

/* 适配边界 */
.fit-section{background:#fff}
.fit-note{max-width:780px;margin:24px auto 0;text-align:center;font-size:14px;color:var(--faint)}
.fit-card{height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);padding:clamp(24px,4vw,40px);box-shadow:var(--shadow-sm);transition:box-shadow .25s ease,border-color .25s ease,transform .25s ease}
.fit-card:hover{box-shadow:var(--shadow-md);border-color:rgba(74,127,174,.3);transform:translateY(-3px)}
.fit-card.inverse{background:var(--primary-soft);border-color:rgba(74,127,174,.15)}
.fit-card .fit-icon{width:44px;height:44px;border-radius:12px;background:var(--primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:19px;margin-bottom:18px}
.fit-card.inverse .fit-icon{background:var(--accent)}
.fit-card h3{font-size:19px;margin-bottom:12px}
.fit-card ul{display:grid;gap:12px;margin-top:18px}
.fit-card ul li{display:flex;align-items:flex-start;gap:9px;font-size:14px;line-height:1.65;color:var(--muted)}
.fit-card ul li i{margin-top:4px}
.fit-card .fit-extra{margin-top:22px;padding-top:16px;border-top:1px dashed var(--line);font-size:13px;color:var(--faint)}
.fit-card.inverse .fit-extra{border-top-color:rgba(74,127,174,.2);color:var(--primary-dark)}

/* 场景组合 */
.scenario-section{background:var(--bg)}
.scenario-wrap{display:flex;flex-direction:column;gap:16px}
.case-row{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);padding:clamp(20px,3vw,32px);display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:20px;box-shadow:var(--shadow-sm);transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease}
.case-row:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:rgba(74,127,174,.25)}
.case-idx{font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--accent);background:var(--accent-soft);border-radius:100px;padding:6px 14px}
.case-content h3{font-size:19px;margin-bottom:7px}
.case-content p{font-size:14px;color:var(--muted);max-width:560px;line-height:1.7}
.case-combo{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end;max-width:360px}
.case-combo span{font-size:12px;font-weight:600;color:var(--primary-dark);background:var(--primary-soft);border-radius:100px;padding:6px 13px}
@media(max-width:1023px){
  .case-row{grid-template-columns:1fr;align-items:start}
  .case-combo{justify-content:flex-start;max-width:none}
}

/* FAQ */
.faq-section{background:#fff}
.faq-sidebar .eyebrow{margin-bottom:14px}
.faq-sidebar h2{font-size:clamp(26px,3vw,36px);margin-bottom:16px}
.faq-sidebar p{color:var(--muted);font-size:15px;line-height:1.8;max-width:340px}
.faq-sidebar .faq-widget{margin-top:24px;padding:20px;border-radius:var(--radius-md);background:var(--primary-soft);border:1px solid rgba(74,127,174,.16);font-size:13px;color:var(--primary-dark);display:flex;gap:12px;align-items:flex-start}
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item:hover{border-color:rgba(74,127,174,.35);box-shadow:var(--shadow-sm)}
.faq-q{width:100%;display:flex;align-items:flex-start;gap:14px;text-align:left;padding:20px 22px;font-size:16px;font-weight:600;color:var(--ink);background:none;transition:color .2s ease}
.faq-q:hover{color:var(--primary-dark)}
.faq-q .faq-marker{width:28px;height:28px;border-radius:50%;background:var(--primary-soft);color:var(--primary-dark);display:inline-flex;align-items:center;justify-content:center;font-size:15px;flex-shrink:0;margin-top:1px;transition:transform .3s ease,background .2s ease,color .2s ease}
.faq-q .faq-chevron{margin-left:auto;color:var(--faint);font-size:16px;transition:transform .3s ease}
.faq-item.open .faq-q .faq-chevron{transform:rotate(180deg)}
.faq-item.open .faq-q .faq-marker{background:var(--accent);color:#fff;transform:rotate(45deg)}
.faq-a{display:none;padding:0 22px 22px;padding-left:64px;color:var(--muted);font-size:15px;line-height:1.8}
.faq-item.open .faq-a{display:block}
.faq-a .faq-link{margin-top:14px;font-size:13px;font-weight:600;color:var(--accent);display:inline-flex;align-items:center;gap:6px}
@media(max-width:1023px){
  .faq-sidebar{margin-bottom:32px}
}
@media(max-width:640px){
  .faq-a{padding-left:22px}
  .faq-q{padding:17px 16px}
}

/* CTA */
.cta-section{padding:80px 0}
.cta-band{position:relative;border-radius:24px;overflow:hidden;background:linear-gradient(115deg,rgba(16,48,74,.94),rgba(52,106,148,.9)),url("/assets/images/backpic/back-2.webp") center/cover no-repeat;color:#fff;padding:clamp(32px,6vw,70px);display:flex;align-items:center;justify-content:space-between;gap:28px;box-shadow:0 18px 50px rgba(20,56,86,.28)}
.cta-band::before{content:"";position:absolute;right:-120px;bottom:-120px;width:240px;height:240px;background:rgba(255,255,255,.08);border-radius:50%;border:30px solid rgba(255,255,255,.05)}
.cta-copy{max-width:640px;position:relative}
.cta-copy .cta-overline{color:rgba(255,255,255,.65);font-size:14px;font-weight:600}
.cta-copy h2{color:#fff;font-size:clamp(25px,3vw,34px);line-height:1.25;margin:16px 0 16px}
.cta-copy p{color:rgba(255,255,255,.85);font-size:15px;line-height:1.8}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;flex-shrink:0}
@media(max-width:1023px){
  .cta-band{flex-direction:column;align-items:flex-start}
}
@media(max-width:640px){
  .cta-actions .btn{width:100%}
}

/* footer */
.site-footer{background:#fff;border-top:1px solid var(--line)}
.footer-main{padding:64px 0 40px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.2fr 1.2fr;gap:44px}
.footer-brand .logo-link{margin-bottom:20px}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.8;max-width:340px}
.footer-title{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--ink)}
.footer-links li + li{margin-top:10px}
.footer-links a{font-size:14px;color:var(--muted);line-height:1.5}
.footer-links a:hover{color:var(--primary)}
.footer-contact p{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-top:10px}
.footer-contact p svg{width:18px;height:18px;fill:none;stroke:var(--primary);stroke-width:2}
.qr-placeholder{margin-top:16px;width:100px;height:100px;border:1px dashed var(--line-strong);border-radius:12px;display:flex;align-items:center;justify-content:center;text-align:center;font-size:12px;color:var(--faint);line-height:1.5}
.footer-bottom{border-top:1px solid var(--line);background:#FBFCFE}
.footer-bottom-inner{min-height:58px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--faint)}
.footer-bottom-inner a{color:var(--faint)}
.footer-bottom-inner a:hover{color:var(--accent)}
@media(max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:640px){
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom-inner{justify-content:center;padding:14px 0;text-align:center}
}

/* modal */
body.modal-open{overflow:hidden}
.modal-mask{position:fixed;inset:0;z-index:2000;display:flex;align-items:center;justify-content:center;padding:18px;background:rgba(12,32,48,.55);backdrop-filter:blur(5px)}
.modal-mask[hidden]{display:none}
.modal-dialog{background:#fff;width:100%;max-width:600px;border-radius:22px;padding:clamp(24px,5vw,42px);max-height:92vh;overflow:auto;position:relative;box-shadow:0 30px 90px rgba(10,30,50,.25);animation:modalIn .3s ease}
@keyframes modalIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.modal-close{position:absolute;top:18px;right:18px;width:38px;height:38px;border-radius:50%;background:var(--bg);color:var(--muted);display:inline-flex;align-items:center;justify-content:center;font-size:16px;transition:background .2s ease,color .2s ease}
.modal-close:hover{background:var(--accent-soft);color:var(--accent-dark)}
.modal-dialog .eyebrow{margin-bottom:8px}
.modal-dialog h3{font-size:25px;line-height:1.3}
.modal-dialog .modal-sub{margin-top:10px;font-size:14px;color:var(--muted)}
.contact-form{margin-top:24px}
.form-field{margin-bottom:17px}
.form-field label{display:block;font-size:13px;font-weight:600;color:var(--ink);margin-bottom:7px}
.form-field label i{color:var(--accent);font-style:normal;margin-left:3px}
.form-field input,.form-field textarea{width:100%;border:1px solid var(--line);border-radius:11px;background:#FCFDFE;padding:13px 15px;font-size:15px;line-height:1.5;transition:border-color .2s ease,background .2s ease,box-shadow .2s ease}
.form-field textarea{resize:vertical;min-height:110px}
.form-field input:focus,.form-field textarea:focus{outline:none;border-color:var(--primary);background:#fff;box-shadow:0 0 0 4px rgba(74,127,174,.12)}
.consent-row{display:flex;align-items:flex-start;gap:8px;font-size:13px;color:var(--muted);line-height:1.6;margin-bottom:18px}
.consent-row input{margin-top:3px;accent-color:var(--accent)}
.form-success{background:#EAF5EC;border:1px solid #CAE5CE;color:#2B7A3F;font-size:14px;padding:16px;border-radius:11px}
.form-success[hidden]{display:none}
.modal-privacy{display:flex;align-items:flex-start;gap:8px;background:var(--bg);border-radius:11px;padding:13px 15px;font-size:12px;color:var(--faint);line-height:1.6;margin-top:14px}

@media(max-width:640px){
  .section-head{margin-bottom:44px}
}

/* roulang page: category2 */
:root {
  --primary: #346A94;
  --primary-dark: #28577E;
  --primary-soft: #E9F2F8;
  --accent: #C96B32;
  --accent-dark: #A95224;
  --accent-soft: #F9EBE1;
  --bg: #F5F9FC;
  --white: #FFFFFF;
  --text: #1F2D38;
  --text-2: #5B6F80;
  --text-3: #8D9CA9;
  --border: #E1E8EF;
  --radius-card: 18px;
  --radius-box: 24px;
  --shadow: 0 6px 20px rgba(28, 57, 84, 0.06);
  --shadow-hover: 0 10px 32px rgba(28, 57, 84, 0.1);
  --container: 1200px;
  --space-section: 100px;
  --space-section-sm: 68px;
  --focus-outline: 2px solid #C96B32;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  font-family: "PingFang SC", "HarmonyOS Sans", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 14px;
  line-height: 1.35;
  font-weight: 700;
  color: var(--text);
}

p {
  margin: 0 0 16px;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color .2s ease;
}

a:hover {
  color: var(--accent);
}

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

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

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

button {
  cursor: pointer;
  border: none;
  background: none;
}

[hidden] {
  display: none !important;
}

:focus-visible {
  outline: var(--focus-outline);
  outline-offset: 3px;
}

.container {
  max-width: var(--container);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(18px, 4vw, 32px);
  padding-right: clamp(18px, 4vw, 32px);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 18px rgba(37, 66, 96, 0.04);
}

.header-inner {
  display: flex;
  align-items: center;
  min-height: 76px;
  gap: 18px;
  position: relative;
}

.logo-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: none;
  margin-right: 8px;
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 13px;
  background: linear-gradient(145deg, #4A7FAE, #28577E);
  color: #fff;
  box-shadow: 0 6px 15px rgba(40, 87, 126, 0.25);
}

.logo-mark svg {
  width: 25px;
  height: 25px;
}

.logo-text {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--text);
  white-space: nowrap;
}

.logo-text small,
.logo-text span {
  display: block;
  font-size: 11px;
  font-weight: 400;
  color: var(--text-3);
  letter-spacing: .12em;
  text-transform: uppercase;
}

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

.nav-list {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0;
  margin: 0;
}

.nav-list a {
  display: inline-flex;
  align-items: center;
  height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  color: var(--text-2);
  font-size: 15px;
  font-weight: 500;
  transition: color .2s, background .2s;
}

.nav-list a:hover {
  background: var(--primary-soft);
  color: var(--primary);
}

.nav-list a.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 16px rgba(52, 106, 148, 0.24);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: none;
}

.search-box {
  display: flex;
  align-items: center;
  width: 160px;
  height: 42px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 999px;
  padding: 0 8px 0 14px;
  transition: border-color .2s, box-shadow .2s;
}

.search-box:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(52, 106, 148, 0.12);
}

.search-box input {
  border: none;
  outline: none;
  background: transparent;
  width: 100%;
  font-size: 14px;
}

.search-box svg {
  width: 18px;
  height: 18px;
  color: var(--text-3);
  margin-left: 5px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 20px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  transition: background .2s, color .2s, border-color .2s, transform .2s, box-shadow .2s;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border: 1px solid var(--accent);
  box-shadow: 0 8px 20px rgba(201, 107, 50, 0.2);
}

.btn-primary:hover {
  background: var(--accent-dark);
  color: #fff;
  border-color: var(--accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(201, 107, 50, 0.28);
}

.btn-secondary {
  background: #fff;
  color: var(--primary);
  border: 1px solid #C6D7E4;
}

.btn-secondary:hover {
  border-color: var(--primary);
  background: var(--primary-soft);
  color: var(--primary);
}

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

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

.btn-text {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 0;
  min-height: 32px;
  color: var(--primary);
  font-weight: 600;
  border-radius: 4px;
}

.btn-text svg {
  width: 17px;
  height: 17px;
  transition: transform .2s;
}

.btn-text:hover svg {
  transform: translateX(4px);
}

.cta-header {
  min-height: 42px;
  padding: 0 18px;
  font-size: 14px;
}

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
  color: var(--text);
}

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

main {
  display: block;
}

.section {
  padding: var(--space-section) 0;
}

.section-tight {
  padding: 72px 0;
}

/* hero */
.industry-hero {
  background:
    radial-gradient(circle at 82% 24%, rgba(255,255,255,0.7) 0%, rgba(255,255,255,0) 32%),
    linear-gradient(120deg, #F5FAFD 0%, #E4EEF6 54%, #D9E9F2 100%);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(380px, 0.9fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
  padding: 88px 0 84px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(52, 106, 148, 0.1);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  border-radius: 999px;
  padding: 6px 14px;
  margin-bottom: 20px;
}

.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.hero-title {
  font-size: clamp(32px, 4.4vw, 48px);
  font-weight: 800;
  margin-bottom: 22px;
  line-height: 1.28;
}

.hero-title .underline-word {
  color: var(--primary);
  position: relative;
  white-space: nowrap;
}

.hero-sub {
  font-size: 17px;
  color: var(--text-2);
  max-width: 620px;
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 34px;
}

.hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip-anchor {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 17px;
  border: 1px solid #C6D7E4;
  background: rgba(255,255,255,0.5);
  border-radius: 999px;
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  transition: border-color .2s, background .2s, color .2s;
}

.chip-anchor svg {
  width: 14px;
  height: 14px;
  color: var(--accent);
}

.chip-anchor:hover {
  border-color: var(--primary);
  background: #fff;
  color: var(--primary);
}

.hero-visual {
  position: relative;
}

.hero-visual::before {
  content: "";
  position: absolute;
  right: -18%;
  top: -27px;
  width: 290px;
  height: 290px;
  border-radius: 45px;
  background: linear-gradient(150deg, rgba(255,255,255,0.3), rgba(255,255,255,0));
  border: 2px solid rgba(255,255,255,0.45);
  transform: rotate(15deg);
}

.hero-visual img {
  position: relative;
  border-radius: 26px;
  border: 1px solid rgba(255,255,255,0.8);
  box-shadow: 0 26px 70px rgba(28, 57, 84, 0.18);
  width: 100%;
  height: 390px;
  object-fit: cover;
}

.hero-card-float {
  position: absolute;
  left: -28px;
  bottom: 30px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(10px);
  padding: 16px 18px;
  border-radius: 16px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  max-width: 230px;
}

.hero-card-float strong {
  display: block;
  color: var(--text);
  font-size: 16px;
  margin-bottom: 4px;
}

.hero-card-float span {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.6;
}

/* scenario section */
.scenario-section {
  padding: var(--space-section) 0;
  background: #fff;
}

.section-head {
  max-width: 810px;
  margin-bottom: 46px;
}

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

.section-head h2 {
  font-size: clamp(27px, 3.2vw, 35px);
  margin-bottom: 12px;
}

.section-head p {
  color: var(--text-2);
  font-size: 16px;
  line-height: 1.8;
} 

.tag {
  display: inline-block;
  background: var(--primary-soft);
  color: var(--primary);
  border-radius: 6px;
  padding: 4px 11px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 14px;
  letter-spacing: .03em;
}

.industry-card {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(360px, 1.1fr);
  gap: 44px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-box);
  padding: clamp(24px, 4vw, 42px);
  margin-bottom: 32px;
  box-shadow: var(--shadow);
  transition: box-shadow .28s, transform .28s, border-color .28s;
}

.industry-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: rgba(52,106,148,0.25);
  transform: translateY(-3px);
}

.industry-card.reversed .industry-figure {
  order: 2;
}

.industry-figure {
  overflow: hidden;
  border-radius: 16px;
  min-height: 260px;
}

.industry-figure img {
  width: 100%;
  height: 100%;
  min-height: 270px;
  max-height: 340px;
  object-fit: cover;
  transition: transform .6s ease;
}

.industry-card:hover .industry-figure img {
  transform: scale(1.03);
}

.industry-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.industry-content h3 {
  font-size: 24px;
  line-height: 1.35;
  margin-bottom: 13px;
}

.industry-content > p {
  color: var(--text-2);
  line-height: 1.85;
  margin-bottom: 18px;
}

.check-list {
  margin-bottom: 22px;
}

.check-list li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 10px;
  color: var(--text-2);
  font-size: 15px;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  background: var(--primary-soft);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23346A94' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m3 8 4 4 6-7'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 12px;
  border-radius: 50%;
}

/* process section */
.process-section {
  padding: var(--space-section) 0;
  background: linear-gradient(180deg, #EDF5FA 0%, #FFFFFF 42%);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-top: 24px;
}

.process-step {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.process-step .step-num {
  display: inline-flex;
  font-size: 15px;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 5px 15px;
  margin-bottom: 20px;
}

.process-step h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.process-step p {
  color: var(--text-2);
  font-size: 14.5px;
  margin: 0;
}

/* data band */
.result-band {
  background:
    linear-gradient(135deg, rgba(36, 72, 101, 0.96), rgba(64, 105, 137, 0.9)),
    url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
  background-blend-mode: multiply;
  padding: 90px 0;
}

.result-band-mask {
  display: block;
}

.result-band h2 {
  color: #fff;
  margin-bottom: 18px;
}

.result-band .section-sub-light {
  color: rgba(255,255,255,0.78);
  font-size: 17px;
  max-width: 700px;
  margin-bottom: 46px;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.stat-card {
  background: rgba(255,255,255,0.09);
  border: 1px solid rgba(255,255,255,0.22);
  border-radius: var(--radius-card);
  color: #fff;
  padding: 26px 22px;
  backdrop-filter: blur(6px);
}

.stat-card strong {
  display: block;
  font-size: clamp(28px, 3.6vw, 42px);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 7px;
  font-variant-numeric: tabular-nums;
}

.stat-card strong em {
  font-style: normal;
  font-size: 17px;
  font-weight: 600;
  margin-right: 4px;
}

.stat-card span {
  display: block;
  color: rgba(255,255,255,0.82);
  font-size: 14.5px;
}

/* FAQ */
.faq-section {
  padding: var(--space-section) 0;
  background: #fff;
}

.faq-wrap {
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color .25s, box-shadow .25s;
}

.faq-item.open {
  border-color: rgba(52,106,148,0.28);
  box-shadow: var(--shadow);
  background: #fff;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  text-align: left;
  padding: 20px 24px;
  min-height: 66px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.faq-question svg {
  flex: none;
  width: 22px;
  height: 22px;
  color: var(--primary);
  transition: transform .3s;
}

.faq-item.open .faq-question svg {
  transform: rotate(180deg);
}

.faq-answer {
  border-top: 1px solid rgba(225, 232, 239, 0);
  padding: 0 24px 22px;
  color: var(--text-2);
  font-size: 15px;
  line-height: 1.9;
}

/* cta */
.cta-section {
  padding: 0 0 var(--space-section);
  background: #fff;
}

.cta-panel {
  background: linear-gradient(130deg, var(--primary-soft), #FDF6EF);
  border: 1px solid #DCE7EF;
  border-radius: 28px;
  padding: clamp(28px, 5vw, 60px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 34px;
  flex-wrap: wrap;
}

.cta-content h2 {
  font-size: clamp(24px, 3vw, 32px);
  margin-bottom: 10px;
}

.cta-content p {
  color: var(--text-2);
  max-width: 650px;
  margin: 0;
  font-size: 16px;
}

.cta-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  flex: none;
}

/* footer */
.site-footer {
  background: #F9FBFD;
  border-top: 1px solid var(--border);
  padding-top: 58px;
}

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

.footer-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.8fr 0.9fr 1fr;
  gap: 34px;
}

.footer-brand .logo-link {
  margin-bottom: 16px;
}

.footer-brand p {
  color: var(--text-2);
  font-size: 14.5px;
  line-height: 1.8;
  max-width: 330px;
  margin-top: 16px;
}

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

.footer-links li {
  margin-bottom: 9px;
}

.footer-links a {
  color: var(--text-2);
  font-size: 14.5px;
  transition: color .2s, padding-left .2s;
}

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

.footer-contact svg {
  width: 18px;
  height: 18px;
  vertical-align: -3px;
  color: var(--primary);
  margin-right: 8px;
}

.footer-contact p {
  display: flex;
  align-items: center;
  font-size: 14.5px;
  color: var(--text-2);
  margin-bottom: 10px;
}

.qr-placeholder {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 112px;
  height: 112px;
  border: 1px dashed #B8C9D6;
  border-radius: 12px;
  background: #fff;
  color: var(--text-3);
  font-size: 13px;
  text-align: center;
  line-height: 1.6;
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 18px 0;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--text-3);
  font-size: 13.5px;
}

.footer-bottom-inner a {
  color: var(--text-3);
  font-size: 13.5px;
  text-decoration: underline;
}

/* modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 22px;
}

.modal.is-open {
  display: flex;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(21, 38, 52, 0.45);
  backdrop-filter: blur(4px);
  transition: opacity .3s;
}

.modal-panel {
  position: relative;
  background: #fff;
  width: min(620px, 100%);
  border-radius: 24px;
  box-shadow: 0 26px 80px rgba(15, 32, 48, 0.2);
  padding: clamp(26px, 4vw, 42px);
  max-height: calc(100vh - 40px);
  overflow-y: auto;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--bg);
  color: var(--text-2);
  line-height: 1;
  transition: background .2s, color .2s;
}

.modal-close svg {
  width: 20px;
  height: 20px;
}

.modal-close:hover {
  background: var(--accent-soft);
  color: var(--accent);
}

.modal-panel h2 {
  font-size: 25px;
  margin-bottom: 6px;
}

.modal-panel .modal-desc {
  color: var(--text-2);
  margin-bottom: 24px;
  font-size: 15px;
}

.form-field {
  margin-bottom: 17px;
}

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

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  border: 1px solid var(--border);
  background: #FAFCFE;
  border-radius: 12px;
  padding: 11px 14px;
  min-height: 44px;
  transition: border-color .2s, box-shadow .2s;
}

.form-field textarea {
  min-height: 96px;
  resize: vertical;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(52, 106, 148, 0.14);
}

.form-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 16px 0 18px;
  font-size: 13px;
  color: var(--text-2);
}

.form-check input {
  width: 17px;
  height: 17px;
  margin-top: 2px;
  accent-color: var(--primary);
}

.form-privacy {
  font-size: 12.5px;
  color: var(--text-3);
  margin-top: 14px;
  line-height: 1.7;
}

.form-privacy a {
  color: var(--primary);
  text-decoration: underline;
}

.form-success {
  text-align: center;
  padding: 32px 10px;
}

.form-success svg {
  width: 62px;
  height: 62px;
  color: var(--primary);
  margin: 0 auto 18px;
}

.form-success h3 {
  font-size: 22px;
  margin-bottom: 10px;
}

.form-success p {
  color: var(--text-2);
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
}

/* responsive */
@media (max-width: 1120px) {
  .search-box {
    width: 118px;
  }
  .cta-header {
    padding: 0 14px;
    font-size: 13px;
  }
  .nav-list a {
    padding: 0 11px;
    font-size: 14px;
  }
  .hero-grid {
    gap: 34px;
  }
  .hero-visual img {
    height: 330px;
  }
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 1024px) {
  .menu-toggle {
    display: inline-flex;
  }

  .site-header .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 18px 32px rgba(20, 45, 65, 0.08);
    display: none;
    margin: 0;
    padding: 14px 20px 20px;
  }

  .site-header.nav-open .site-nav {
    display: block;
  }

  .site-nav .nav-list {
    flex-direction: column;
    align-items: stretch;
  }

  .site-nav .nav-list a {
    width: 100%;
    border-radius: 10px;
    height: 44px;
  }

  .search-box {
    display: none;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    padding: 62px 0 76px;
  }

  .hero-sub {
    max-width: 100%;
  }

  .hero-chips {
    justify-content: center;
  }

  .hero-visual {
    max-width: 680px;
  }

  .hero-visual img {
    height: 340px;
  }

  .hero-card-float {
    left: 12px;
  }

  .industry-card,
  .industry-card.reversed {
    grid-template-columns: 1fr;
  }

  .industry-card.reversed .industry-figure {
    order: 0;
  }

  .industry-figure img {
    min-height: 240px;
  }
}

@media (max-width: 780px) {
  :root {
    --space-section: 68px;
    --space-section-sm: 46px;
  }

  .header-inner {
    min-height: 66px;
    gap: 10px;
  }

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

  .logo-mark {
    width: 38px;
    height: 38px;
    border-radius: 11px;
  }

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

  .cta-header {
    display: none;
  }

  .hero-title {
    font-size: 31px;
  }

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

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

  .process-grid,
  .stat-grid {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }

  .stat-card {
    padding: 20px 16px;
  }

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

  .footer-brand {
    margin-bottom: 4px;
  }
  
  .cta-panel {
    flex-direction: column;
    align-items: stretch;
    text-align: left;
  }

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

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

  .industry-hero {
    border-radius: 0;
  }

  .hero-visual img {
    height: 250px;
    border-radius: 18px;
  }

  .hero-card-float {
    bottom: 12px;
    left: 8px;
    right: 8px;
    max-width: none;
  }

  .industry-card {
    margin-bottom: 20px;
    padding: 22px 18px;
  }

  .industry-figure {
    min-height: 0;
  }

  .industry-figure img {
    min-height: 190px;
  }

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

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

  .stat-card strong {
    font-size: 26px;
  }

  .stat-card span {
    font-size: 13px;
  }

  .result-band {
    padding: 62px 0;
  }

  .faq-question {
    font-size: 15px;
    padding: 17px 17px;
  }

  .faq-answer {
    padding: 0 17px 18px;
    font-size: 14.5px;
  }

  .footer-bottom-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* roulang page: category3 */
:root{
  --blue:#3f7ba6;
  --blue-dark:#2e5e83;
  --blue-soft:#e6f1f8;
  --blue-bg:#f2f7fb;
  --accent:#ce6a2e;
  --accent-dark:#b05724;
  --text-main:#1f2d38;
  --text-sub:#5c7183;
  --text-muted:#8c9caa;
  --border:#dce6ee;
  --white:#ffffff;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:9px;
  --shadow-sm:0 6px 20px rgba(30,60,86,0.06);
  --shadow-md:0 14px 34px rgba(30,60,86,0.10);
  --section-space:100px;
  --container:1200px;
  --font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;font-family:var(--font-family);background:#fdfefe;color:var(--text-main);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased;}
img{max-width:100%;display:block;}
button,input,textarea,select{font:inherit;color:inherit;}
a{color:inherit;text-decoration:none;}
ul,ol{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4,h5,p{margin-top:0;}
h1,h2,h3,h4{font-weight:650;line-height:1.3;color:var(--text-main);}
.container{max-width:var(--container);margin:0 auto;padding:0 26px;}
.section{padding:var(--section-space) 0;}
.section-alt{background:var(--blue-bg);}
.section-white{background:#fff;}
.section-eyebrow{display:inline-block;padding:5px 14px;border-radius:30px;background:var(--blue-soft);color:var(--blue-dark);font-size:13px;font-weight:600;letter-spacing:.08em;}
.section-head{max-width:860px;margin:0 auto 52px;text-align:center;}
.section-head h2{font-size:32px;letter-spacing:0;margin-top:18px;}
.section-head .section-desc{margin-top:16px;color:var(--text-sub);}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 22px;border-radius:999px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .25s ease;background:transparent;}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 22px rgba(206,106,46,0.22);}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:0 12px 26px rgba(176,87,36,0.2);}
.btn-secondary{background:#fff;color:var(--blue-dark);border-color:#b9cfdd;}
.btn-secondary:hover{background:var(--blue-soft);border-color:var(--blue);transform:translateY(-2px);}
.text-link{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--blue-dark);}
.text-link i{transition:transform .2s;}
.text-link:hover i{transform:translateX(4px);}
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,0.93);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--border);box-shadow:0 4px 18px rgba(31,53,74,0.03);}
.header-row{display:flex;align-items:center;min-height:74px;gap:18px;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;padding:8px 0;}
.brand-logo{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:linear-gradient(145deg,var(--blue),#5e92b5);color:#fff;box-shadow:0 8px 18px rgba(63,123,166,.25);}
.brand-logo svg{width:22px;height:22px;}
.brand-text{display:flex;flex-direction:column;font-size:18px;font-weight:750;color:var(--text-main);line-height:1.2;}
.brand-text small{font-size:11px;color:var(--text-muted);font-weight:500;letter-spacing:.12em;}
.site-nav{margin-left:auto;}
.nav-list{display:flex;align-items:center;gap:4px;}
.nav-list a{position:relative;display:block;padding:11px 13px;font-size:15px;font-weight:550;color:var(--text-sub);border-radius:9px;transition:color .2s,background .2s;}
.nav-list a:hover{color:var(--blue-dark);background:rgba(63,123,166,.06);}
.nav-list a.active{color:var(--blue-dark);font-weight:650;}
.nav-list a.active::after{content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;border-radius:2px;background:var(--blue);}
.header-tools{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.search-form{position:relative;width:172px;}
.search-form i{position:absolute;left:13px;top:50%;transform:translateY(-50%);font-size:13px;color:var(--text-muted);}
.search-form input{width:100%;height:42px;padding:0 16px 0 36px;border:1px solid var(--border);border-radius:30px;background:var(--blue-bg);color:var(--text-main);transition:border .2s,background .2s;outline:none;}
.search-form input::placeholder{color:var(--text-muted);}
.search-form input:focus{border-color:var(--blue);background:#fff;box-shadow:0 0 0 4px rgba(63,123,166,.1);}
.header-cta{min-height:42px;padding:0 18px;border-radius:999px;background:var(--accent);color:#fff;font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:7px;transition:all .2s;border:1px solid var(--accent);}
.header-cta:hover{background:var(--accent-dark);border-color:var(--accent-dark);transform:translateY(-2px);}
.nav-burger{display:none;width:44px;height:42px;border:1px solid var(--border);border-radius:10px;background:#fff;font-size:19px;color:var(--text-main);cursor:pointer;align-items:center;justify-content:center;}
.nav-burger:focus-visible{outline:3px solid rgba(63,123,166,.25);outline-offset:2px;}
.data-hero{position:relative;overflow:hidden;padding:88px 0 110px;background:linear-gradient(132deg,#f3f9fd 0%,#fff 46%,#edf5fa 100%);border-bottom:1px solid var(--border);}
.data-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(115deg,rgba(245,251,255,0.96) 32%,rgba(255,255,255,0.82)),url('/assets/images/backpic/back-2.webp');background-position:center;background-size:cover;opacity:.46;z-index:0;}
.data-hero .container{position:relative;z-index:2;}
.hero-layout{display:grid;grid-template-columns:1.08fr .92fr;gap:60px;align-items:center;}
.hero-eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:14px;font-weight:600;color:var(--blue-dark);text-transform:uppercase;letter-spacing:.05em;margin-bottom:22px;}
.hero-eyebrow::before{content:"";width:26px;height:2px;background:var(--accent);border-radius:3px;}
.hero-copy h1{font-size:43px;line-height:1.24;letter-spacing:.01em;margin-bottom:20px;}
.hero-lead{font-size:17px;color:var(--text-sub);max-width:560px;line-height:1.9;}
.hero-btns{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px;}
.hero-pivot-note{margin-top:34px;display:flex;align-items:center;gap:9px;color:var(--text-muted);font-size:13px;}
.hero-pivot-note i{color:var(--blue);}
.hero-dash{background:linear-gradient(150deg,#fff,#f0f7fc);border:1px solid rgba(63,123,166,.2);border-radius:22px;box-shadow:var(--shadow-md);padding:20px;transform:rotate(0.6deg);}
.dash-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--border);}
.dash-head span{font-size:14px;font-weight:650;color:var(--text-main);display:inline-flex;align-items:center;gap:8px;}
.dash-head i{color:var(--blue);}
.dash-badge{background:var(--blue-soft);color:var(--blue-dark);font-size:12px;font-weight:600;padding:4px 11px;border-radius:20px;}
.hero-metric-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding-top:15px;}
.metric-box{padding:16px 14px;background:#fff;border:1px solid #e0eaf1;border-radius:14px;box-shadow:0 4px 12px rgba(41,73,103,.04);transition:box-shadow .24s,transform .24s;}
.metric-box:hover{box-shadow:0 12px 24px rgba(41,73,103,.1);transform:translateY(-3px);}
.metric-title{display:flex;align-items:center;gap:7px;color:var(--text-muted);font-size:12px;font-weight:600;margin-bottom:6px;}
.metric-title i{color:var(--blue);}
.metric-num{font-size:32px;line-height:1;font-weight:750;letter-spacing:-.03em;color:var(--text-main);font-variant-numeric:tabular-nums;}
.metric-num span{font-size:14px;font-weight:600;color:var(--text-muted);margin-left:3px;}
.metric-box p{margin:8px 0 0;font-size:12px;line-height:1.6;color:var(--text-sub);}
.dash-footer{padding-top:15px;margin-top:13px;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--text-muted);}
.dash-footer strong{color:var(--accent);font-weight:650;}
.split-panel{display:grid;grid-template-columns:1.3fr .7fr;gap:28px;margin-top:52px;}
.spec-main{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:40px;box-shadow:var(--shadow-sm);}
.spec-main h3{font-size:24px;margin-bottom:10px;}
.spec-main p{color:var(--text-sub);}
.check-list{margin:24px 0 0;display:grid;gap:16px;}
.check-list li{display:grid;grid-template-columns:26px 1fr;gap:9px;align-items:start;}
.check-list li::before{content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;font-size:13px;width:24px;height:24px;border-radius:7px;background:var(--blue-soft);color:var(--blue);display:grid;place-items:center;margin-top:4px;}
.check-list b{font-weight:650;color:var(--text-main);}
.check-list span{display:block;}
.spec-side{background:var(--blue-dark);color:#fff;border-radius:var(--radius-lg);padding:34px;position:relative;overflow:hidden;}
.spec-side::after{content:"";position:absolute;right:-40px;bottom:-50px;width:160px;height:160px;border-radius:50%;background:rgba(255,255,255,.08);}
.spec-side .side-kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;border:1px solid rgba(255,255,255,.35);padding:4px 12px;border-radius:30px;margin-bottom:22px;}
.spec-side h4{font-size:20px;color:#fff;margin-bottom:16px;}
.spec-side p{color:#e2eef7;font-size:14px;line-height:1.8;position:relative;z-index:2;}
.spec-side a{color:#fff;font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:8px;margin-top:22px;position:relative;z-index:2;}
.spec-side a i{transition:transform .2s;}
.spec-side a:hover i{transform:translateX(4px);}
.panel-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:32px;}
.dashboard-wrap{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;margin-top:52px;}
.panel-title{display:flex;align-items:center;justify-content:space-between;gap:14px;border-bottom:1px solid var(--border);padding-bottom:16px;margin-bottom:22px;}
.panel-title h3{margin:0;font-size:20px;}
.tag{display:inline-block;background:var(--blue-soft);color:var(--blue-dark);padding:3px 12px;border-radius:30px;font-size:12px;font-weight:600;white-space:nowrap;}
.funnel{display:grid;gap:14px;padding:8px 0;}
.funnel-item{display:grid;grid-template-columns:88px 1fr 76px;align-items:center;gap:14px;font-size:13px;}
.funnel-label{color:var(--text-main);font-weight:600;text-align:right;}
.funnel-track{height:18px;background:var(--blue-bg);border-radius:30px;overflow:hidden;}
.funnel-bar{display:block;height:100%;border-radius:30px;background:linear-gradient(90deg,var(--blue),#76aecd);transform-origin:left;}
.funnel-item:nth-child(2) .funnel-bar{background:linear-gradient(90deg,#3d8fb5,#76afcf);}
.funnel-item:nth-child(3) .funnel-bar{background:linear-gradient(90deg,#79aac3,#a2c8db);}
.funnel-item:nth-child(4) .funnel-bar{background:linear-gradient(90deg,#c4d7e3,#dcebf4);}
.funnel-item:last-child .funnel-bar{background:linear-gradient(90deg,#d9ccc0,#eee1d4);}
.funnel-value{font-weight:650;color:var(--text-main);font-variant-numeric:tabular-nums;}
.chart-note{display:flex;align-items:flex-start;gap:8px;color:var(--text-muted);font-size:12px;margin-top:22px;border-top:1px dashed var(--border);padding-top:16px;}
.chart-note i{margin-top:3px;color:var(--blue);}
.boundary-card{background:linear-gradient(180deg,#f7fbfd,#fff);}
.boundary-card .side-border{border-top:1px solid var(--border);margin:24px 0 0;padding-top:10px;}
.boundary-card h4{font-size:18px;}
.boundary-list li{display:flex;gap:10px;padding:10px 0;border-bottom:1px solid #e6edf3;color:var(--text-sub);font-size:14px;}
.boundary-list li:last-child{border-bottom:none;}
.boundary-list i{color:var(--blue);margin-top:5px;font-size:12px;}
.boundary-list b{color:var(--text-main);}
.feature-stack{display:grid;gap:18px;margin-top:48px;}
.feature-row{display:grid;grid-template-columns:86px 1fr auto;gap:24px;align-items:center;background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px 30px;box-shadow:0 4px 14px rgba(31,55,80,.03);transition:box-shadow .25s,transform .25s,border-color .25s;}
.feature-row:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:rgba(63,123,166,.3);}
.feature-block{display:flex;align-items:center;gap:16px;}
.feature-num{width:54px;height:54px;border-radius:15px;background:var(--blue-soft);color:var(--blue-dark);font-weight:800;font-size:15px;display:grid;place-items:center;letter-spacing:.04em;}
.feature-row h3{margin:0;font-size:18px;}
.feature-row p{color:var(--text-sub);margin:3px 0 0;font-size:14px;line-height:1.75;}
.feature-go{width:44px;height:44px;border-radius:50%;border:1px solid var(--border);background:#fff;color:var(--blue);display:grid;place-items:center;font-size:15px;transition:all .2s;flex-shrink:0;}
.feature-row:hover .feature-go{background:var(--blue);color:#fff;border-color:var(--blue);}
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:50px;}
.step-card{position:relative;overflow:hidden;background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:30px 24px 27px;box-shadow:var(--shadow-sm);transition:box-shadow .24s,transform .24s;}
.step-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px);}
.step-num{font-size:13px;font-weight:800;letter-spacing:.12em;color:var(--accent);margin-bottom:26px;display:inline-block;border:1px solid rgba(206,106,46,.3);padding:3px 12px;border-radius:30px;}
.step-card h3{font-size:18px;margin-bottom:8px;}
.step-card p{color:var(--text-sub);font-size:14px;line-height:1.75;margin-bottom:0;}
.faq-panel{max-width:900px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);margin-bottom:14px;box-shadow:0 3px 12px rgba(31,53,74,.03);transition:border-color .2s,box-shadow .2s;overflow:hidden;}
.faq-item:hover{border-color:rgba(63,123,166,.35);box-shadow:var(--shadow-sm);}
.faq-item summary{list-style:none;padding:22px 26px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:650;font-size:16px;gap:14px;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:13px;color:var(--blue);transition:transform .24s;}
.faq-item[open] summary::after{transform:rotate(180deg);}
.faq-answer{padding:0 26px 24px;color:var(--text-sub);line-height:1.9;border-top:1px solid #edf2f6;}
.faq-answer p{margin-bottom:14px;}
.faq-link{display:inline-flex;align-items:center;gap:8px;color:var(--blue-dark);font-weight:600;font-size:14px;margin-top:10px;}
.faq-link i{font-size:12px;}
.faq-link:hover i{transform:translateX(4px);}
.cta-section{padding-bottom:100px;}
.cta-box{position:relative;overflow:hidden;display:grid;grid-template-columns:1fr auto;align-items:center;gap:32px;background:#fff;border:1px solid var(--border);border-radius:26px;padding:50px;box-shadow:var(--shadow-sm);}
.cta-box::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-position:center;background-size:cover;opacity:.08;}
.cta-box > div{position:relative;z-index:2;}
.cta-content h2{font-size:32px;margin-bottom:8px;}
.cta-content p{color:var(--text-sub);margin:0;max-width:640px;}
.cta-content .brand-label{margin-top:14px;color:var(--blue);font-size:13px;font-weight:650;}
.site-footer{background:#f7fafc;border-top:1px solid var(--border);padding-top:62px;}
.footer-grid{display:grid;grid-template-columns:1.25fr .8fr .9fr .9fr;gap:36px;padding-bottom:40px;}
.footer-brand p{color:var(--text-sub);font-size:14px;line-height:1.9;margin:14px 0 0;max-width:320px;}
.logo-link{display:inline-flex;align-items:center;gap:10px;}
.logo-mark{width:36px;height:36px;border-radius:10px;background:var(--blue);color:#fff;display:grid;place-items:center;box-shadow:0 6px 16px rgba(63,123,166,.2);}
.logo-mark svg{width:20px;height:20px;}
.logo-text{font-size:17px;font-weight:750;color:var(--text-main);display:flex;flex-direction:column;line-height:1.25;}
.logo-text span{font-size:11px;font-weight:500;color:var(--text-muted);letter-spacing:.1em;}
.footer-title{font-size:15px;font-weight:750;margin-bottom:16px;color:var(--text-main);}
.footer-links{display:grid;gap:9px;}
.footer-links a{font-size:14px;color:var(--text-sub);transition:color .2s,padding-left .2s;}
.footer-links a:hover{color:var(--blue-dark);padding-left:4px;}
.footer-contact{display:grid;gap:13px;}
.footer-contact p{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--text-sub);margin:0;}
.footer-contact svg,.footer-bottom svg{width:17px;height:17px;color:var(--blue);flex-shrink:0;}
.qr-placeholder{width:100px;height:100px;border:1px solid var(--border);border-radius:12px;background:#fff;display:grid;place-items:center;text-align:center;font-size:12px;color:var(--text-muted);}
.footer-bottom{border-top:1px solid var(--border);background:#eef5f9;padding:16px 0;}
.footer-bottom-inner{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text-muted);}
.footer-bottom-inner .spacer{flex:1;}
.footer-bottom-inner a{background:#fff;border:1px solid var(--border);border-radius:30px;padding:7px 16px;font-weight:600;color:var(--blue-dark);transition:all .2s;}
.footer-bottom-inner a:hover{background:var(--blue);border-color:var(--blue);color:#fff;}
.footer-bottom-inner span{margin-right:18px;}
.contact-reveal{border:0;border-radius:20px;padding:0;max-width:620px;box-shadow:0 24px 70px rgba(20,40,60,.25);overflow:hidden;}
.contact-panel{padding:34px 32px 30px;}
.contact-panel h3{font-size:24px;margin-bottom:6px;}
.contact-panel .modal-sub{color:var(--text-sub);font-size:14px;margin-bottom:26px;}
.contact-panel label{display:block;margin-bottom:6px;font-size:14px;font-weight:600;color:var(--text-main);}
.contact-panel input[type="text"],
.contact-panel input[type="tel"],
.contact-panel textarea{width:100%;border:1px solid var(--border);border-radius:10px;background:#fbfdfe;padding:12px 14px;margin-bottom:18px;transition:border .2s,box-shadow .2s;outline:none;}
.contact-panel input:focus,.contact-panel textarea:focus{border-color:var(--blue);background:#fff;box-shadow:0 0 0 4px rgba(63,123,166,.1);}
.contact-panel textarea{min-height:110px;resize:vertical;}
.privacy-line{display:flex;gap:9px;align-items:flex-start;margin-bottom:18px;}
.privacy-line input{width:16px;height:16px;margin-top:4px;}
.privacy-line span{font-size:12px;color:var(--text-muted);line-height:1.7;}
.privacy-line b{color:var(--text-sub);}
.btn-block{width:100%;}
.form-success{display:none;text-align:center;padding:32px 24px;}
.form-success i{font-size:44px;color:#4f9b62;margin-bottom:16px;}
.form-success h4{font-size:20px;margin-bottom:8px;}
.form-success p{color:var(--text-sub);font-size:14px;}
.reveal-overlay{background:rgba(21,38,54,.46);}
.close-button{font-size:30px;color:var(--text-sub);transition:color .2s,transform .2s;}
.close-button:hover{color:var(--accent);}
:focus-visible{outline:3px solid rgba(63,123,166,.35);outline-offset:3px;border-radius:5px;}
@media (max-width:1070px){
  .site-nav{display:none;}
  .site-nav.open{display:block;position:fixed;top:77px;left:18px;right:18px;background:#fff;border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow-md);padding:14px;}
  .site-nav.open .nav-list{flex-direction:column;align-items:stretch;}
  .site-nav.open .nav-list a{padding:13px 16px;}
  .nav-list a.active::after{display:none;}
  .nav-list a.active{background:var(--blue-soft);}
  .nav-burger{display:inline-flex;}
  .hero-layout{grid-template-columns:1fr;gap:44px;}
  .hero-copy h1{font-size:34px;}
  .hero-dash{max-width:620px;}
  .steps-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:820px){
  :root{--section-space:64px;}
  .section-head h2,.cta-content h2{font-size:26px;}
  .header-cta{display:none;}
  .search-form{width:145px;}
  .split-panel,.dashboard-wrap,.cta-box{grid-template-columns:1fr;}
  .spec-side{padding:28px;}
  .feature-row{grid-template-columns:1fr;}
  .feature-row h3{margin-bottom:6px;}
  .feature-row p{margin-bottom:0;}
  .feature-go{display:none;}
  .cta-box{padding:36px 24px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start;gap:6px;}
  .footer-bottom-inner .spacer{display:none;}
  .contact-panel{padding:28px 22px;}
}
@media (max-width:600px){
  .container{padding:0 18px;}
  .hero-copy h1{font-size:31px;}
  .hero-metric-grid{grid-template-columns:1fr 1fr;}
  .funnel-item{grid-template-columns:64px 1fr 54px;gap:8px;font-size:12px;}
  .steps-grid{grid-template-columns:1fr;}
  .search-form{display:none;}
  .brand-text{font-size:17px;}
  .data-hero{padding:64px 0 72px;}
  .panel-card,.spec-main{padding:22px;}
  .footer-bottom-inner span{margin:0;}
}

/* roulang page: category4 */
:root {
      --primary: #4A7FAE;
      --primary-deep: #346A94;
      --primary-bg: #EAF3F9;
      --primary-shadow: rgba(52, 106, 148, 0.2);
      --accent: #C9631E;
      --accent-deep: #A94F14;
      --bg: #F5F9FC;
      --white: #FFFFFF;
      --text: #1F2D38;
      --text-sub: #5B6F80;
      --text-weak: #8D9CA9;
      --border: #E1E8EF;
      --radius: 12px;
      --radius-sm: 6px;
      --radius-lg: 18px;
      --shadow: 0 6px 20px rgba(28, 57, 84, 0.06);
      --shadow-hover: 0 10px 32px rgba(28, 57, 84, 0.1);
      --container: 1200px;
      --gap: 96px;
      --gap-half: 48px;
      --font-stack: "PingFang SC", "HarmonyOS Sans", "Microsoft YaHei", "Source Han Sans SC", system-ui, -apple-system, sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      padding: 0;
      font-family: var(--font-stack);
      font-size: 16px;
      line-height: 1.7;
      color: var(--text);
      background: var(--bg);
      -webkit-font-smoothing: antialiased;
    }

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

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

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

    h1,
    h2,
    h3,
    h4,
    h5 {
      margin: 0;
      font-weight: 700;
      line-height: 1.3;
      color: var(--text);
    }

    p {
      margin: 0;
    }

    input,
    textarea,
    select {
      font-family: var(--font-stack);
      font-size: 15px;
      color: var(--text);
    }

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

    a:focus-visible,
    button:focus-visible,
    summary:focus-visible,
    input:focus-visible,
    textarea:focus-visible {
      outline: 3px solid rgba(74, 127, 174, 0.35);
      outline-offset: 2px;
    }

    /* ===== Header Navigation ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: var(--white);
      border-bottom: 1px solid var(--border);
    }

    .header-inner {
      display: flex;
      align-items: center;
      gap: 24px;
      min-height: 76px;
    }

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

    .logo-mark {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 40px;
      height: 40px;
      border-radius: 10px;
      background: var(--primary-bg);
      color: var(--primary);
    }

    .logo-mark svg {
      width: 24px;
      height: 24px;
    }

    .logo-text {
      font-size: 20px;
      font-weight: 700;
      letter-spacing: 0.01em;
      color: var(--text);
      line-height: 1.2;
    }

    .logo-text span {
      display: block;
      font-size: 12px;
      font-weight: 400;
      color: var(--text-weak);
      letter-spacing: 0.08em;
    }

    .site-nav {
      margin-left: auto;
      display: flex;
      align-items: center;
    }

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

    .nav-list a {
      display: block;
      padding: 9px 15px;
      border-radius: 999px;
      font-size: 15px;
      font-weight: 500;
      color: var(--text-sub);
      transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
    }

    .nav-list a:hover {
      background: var(--primary-bg);
      color: var(--primary-deep);
    }

    .nav-list a.active,
    .nav-list a[aria-current="page"] {
      background: var(--primary-bg);
      color: var(--primary-deep);
      font-weight: 600;
      box-shadow: inset 0 0 0 1px rgba(74, 127, 174, 0.16);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-left: 8px;
    }

    .header-search {
      position: relative;
      width: 160px;
    }

    .header-search i {
      position: absolute;
      left: 14px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--text-weak);
      font-size: 14px;
      pointer-events: none;
    }

    .header-search input {
      width: 100%;
      height: 40px;
      padding: 0 13px 0 38px;
      border: 1px solid var(--border);
      border-radius: 999px;
      background: var(--bg);
      font-size: 14px;
    }

    .header-search input:focus {
      outline: none;
      border-color: var(--primary);
      background: var(--white);
      box-shadow: 0 0 0 3px rgba(74, 127, 174, 0.12);
    }

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

    .nav-toggle {
      display: none;
      align-items: center;
      justify-content: center;
      width: 42px;
      height: 42px;
      border: 1px solid var(--border);
      background: var(--white);
      border-radius: 10px;
      color: var(--text);
      font-size: 18px;
    }

    /* ===== Buttons ===== */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 46px;
      padding: 0 22px;
      border: none;
      border-radius: 12px;
      font-size: 15px;
      font-weight: 600;
      line-height: 1;
      cursor: pointer;
      transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
    }

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

    .btn-primary {
      background: var(--accent);
      color: #fff;
      box-shadow: 0 4px 14px rgba(201, 99, 30, 0.2);
    }

    .btn-primary:hover {
      background: var(--accent-deep);
      transform: translateY(-1px);
      box-shadow: 0 8px 22px rgba(201, 99, 30, 0.24);
    }

    .btn-secondary {
      background: var(--white);
      color: var(--primary-deep);
      border: 1px solid rgba(74, 127, 174, 0.35);
    }

    .btn-secondary:hover {
      background: var(--primary-bg);
      border-color: var(--primary);
      box-shadow: 0 6px 16px rgba(74, 127, 174, 0.08);
    }

    .btn-ghost {
      background: rgba(255, 255, 255, 0.08);
      color: #fff;
      border: 1px solid rgba(255, 255, 255, 0.45);
    }

    .btn-ghost:hover {
      background: rgba(255, 255, 255, 0.16);
      border-color: #fff;
    }

    /* ===== Page Modules ===== */
    .block {
      padding: var(--gap) 0;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 0.08em;
      color: var(--primary-deep);
      background: rgba(74, 127, 174, 0.08);
      border-radius: 999px;
      padding: 7px 14px;
      line-height: 1;
    }

    .eyebrow i {
      font-size: 12px;
    }

    .section-head {
      max-width: 820px;
      margin-bottom: 44px;
    }

    .section-head h2 {
      font-size: clamp(26px, 3.2vw, 36px);
      margin-top: 18px;
      line-height: 1.35;
      letter-spacing: -0.01em;
    }

    .section-head p {
      margin-top: 14px;
      color: var(--text-sub);
      font-size: 16px;
    }

    /* ===== About Hero ===== */
    .about-hero {
      position: relative;
      padding: 90px 0;
      background:
        linear-gradient(100deg, rgba(255, 255, 255, 0.94) 0%, rgba(241, 248, 252, 0.88) 45%, rgba(213, 233, 244, 0.72) 100%),
        url('/assets/images/backpic/back-3.webp') center right / cover no-repeat;
      border-bottom: 1px solid var(--border);
      overflow: hidden;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(330px, 420px);
      gap: 72px;
      align-items: center;
    }

    .hero-copy .eyebrow {
      margin-bottom: 22px;
    }

    .about-title {
      font-size: clamp(32px, 5vw, 48px);
      line-height: 1.25;
      letter-spacing: -0.02em;
      margin-bottom: 22px;
    }

    .about-title span {
      color: var(--primary-deep);
    }

    .hero-copy > p {
      font-size: 17px;
      line-height: 1.85;
      color: var(--text-sub);
      max-width: 600px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 14px;
      margin-top: 32px;
    }

    .hero-summary .summary-card {
      background: rgba(255, 255, 255, 0.84);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(255, 255, 255, 0.85);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow);
      padding: 28px;
    }

    .summary-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 20px;
      padding-bottom: 14px;
      border-bottom: 1px solid var(--border);
    }

    .summary-list {
      display: grid;
      gap: 18px;
    }

    .summary-list li {
      display: grid;
      grid-template-columns: 38px 1fr;
      gap: 12px;
    }

    .summary-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 38px;
      height: 38px;
      background: var(--primary-bg);
      border-radius: 10px;
      color: var(--primary-deep);
      font-size: 16px;
    }

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

    .summary-list span {
      font-size: 13px;
      color: var(--text-weak);
      line-height: 1.65;
    }

    /* ===== Intro Story ===== */
    .about-intro {
      background: var(--white);
      padding: var(--gap) 0;
    }

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

    .intro-media {
      position: relative;
    }

    .intro-media img {
      width: 100%;
      border-radius: var(--radius-lg);
      object-fit: cover;
      aspect-ratio: 5 / 4;
      box-shadow: var(--shadow-hover);
    }

    .bubble-card {
      position: absolute;
      left: 20px;
      bottom: 20px;
      background: rgba(255, 255, 255, 0.95);
      border: 1px solid rgba(255, 255, 255, 0.8);
      border-radius: var(--radius);
      box-shadow: var(--shadow-hover);
      max-width: 260px;
      padding: 16px 18px;
    }

    .bubble-card p {
      font-size: 14px;
      color: var(--text);
      line-height: 1.6;
    }

    .about-intro .intro-content h2 {
      font-size: clamp(24px, 2.8vw, 32px);
      line-height: 1.4;
      margin: 16px 0 18px;
    }

    .intro-content p {
      color: var(--text-sub);
      margin-bottom: 18px;
      line-height: 1.85;
    }

    .feature-list {
      display: grid;
      gap: 12px;
      margin-top: 24px;
    }

    .feature-list li {
      position: relative;
      padding: 12px 16px 12px 48px;
      background: var(--bg);
      border-radius: var(--radius);
      border: 1px solid rgba(225, 232, 239, 0.6);
      font-size: 15px;
      line-height: 1.6;
    }

    .feature-list li::before {
      content: "\f00c";
      font-family: "Font Awesome 6 Free";
      font-weight: 900;
      position: absolute;
      left: 18px;
      top: 14px;
      color: var(--primary);
      font-size: 14px;
    }

    .feature-list strong {
      color: var(--text);
    }

    /* ===== Mission Band ===== */
    .mission-band {
      background: var(--primary-deep);
      color: #fff;
      padding: 80px 0;
      text-align: center;
    }

    .mission-quote {
      max-width: 920px;
      margin: 0 auto;
      font-size: clamp(24px, 3.4vw, 38px);
      font-weight: 700;
      line-height: 1.5;
      letter-spacing: -0.01em;
    }

    .mission-quote small {
      display: block;
      font-size: 15px;
      font-weight: 400;
      color: rgba(255, 255, 255, 0.72);
      margin-top: 24px;
      line-height: 1.8;
    }

    /* ===== Process ===== */
    .about-process .process-wrap {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow);
      padding: 40px 48px;
    }

    .process-list {
      display: grid;
    }

    .process-item {
      display: grid;
      grid-template-columns: 130px 1fr;
      gap: 36px;
      padding: 28px 0;
      border-bottom: 1px solid var(--border);
    }

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

    .process-num {
      font-size: 44px;
      font-weight: 800;
      color: rgba(74, 127, 174, 0.25);
      line-height: 1.2;
      letter-spacing: -0.04em;
    }

    .process-content h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 10px;
    }

    .process-content p {
      color: var(--text-sub);
      max-width: 760px;
      line-height: 1.9;
    }

    .process-content .process-tag {
      display: inline-block;
      margin-top: 14px;
      padding: 5px 12px;
      font-size: 13px;
      font-weight: 500;
      background: var(--primary-bg);
      color: var(--primary-deep);
      border-radius: 999px;
    }

    /* ===== Timeline ===== */
    .about-timeline {
      background: var(--primary-bg);
      padding: var(--gap) 0;
    }

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

    .timeline-list::before {
      content: "";
      position: absolute;
      left: 120px;
      top: 20px;
      bottom: 20px;
      width: 2px;
      background: rgba(74, 127, 174, 0.22);
      border-radius: 2px;
    }

    .timeline-item {
      display: grid;
      grid-template-columns: 110px 40px 1fr;
      gap: 16px;
      padding: 22px 0;
      align-items: flex-start;
    }

    .timeline-year {
      font-size: 22px;
      font-weight: 800;
      letter-spacing: 0.02em;
      color: var(--primary-deep);
      text-align: right;
      padding-top: 2px;
    }

    .timeline-dot {
      position: relative;
      width: 14px;
      height: 14px;
      border-radius: 50%;
      background: var(--white);
      border: 3px solid var(--primary);
      margin: 7px auto 0;
      box-shadow: 0 0 0 4px rgba(74, 127, 174, 0.14);
    }

    .timeline-card {
      background: var(--white);
      border-radius: var(--radius);
      border: 1px solid rgba(225, 232, 239, 0.65);
      box-shadow: var(--shadow);
      padding: 20px 22px;
      transition: box-shadow 0.2s ease, transform 0.2s ease;
    }

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

    .timeline-card h3 {
      font-size: 17px;
      color: var(--text);
      margin-bottom: 6px;
    }

    .timeline-card p {
      font-size: 15px;
      color: var(--text-sub);
      line-height: 1.75;
    }

    /* ===== Metrics ===== */
    .about-metrics {
      background: var(--white);
      padding: var(--gap) 0;
    }

    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-bottom: 26px;
    }

    .metric-card {
      background: var(--bg);
      border: 1px solid rgba(225, 232, 239, 0.5);
      border-radius: var(--radius-lg);
      padding: 28px 24px;
      transition: box-shadow 0.2s ease, border-color 0.2s ease;
    }

    .metric-card:hover {
      box-shadow: var(--shadow);
      border-color: rgba(74, 127, 174, 0.3);
    }

    .metric-card strong {
      display: block;
      font-size: clamp(34px, 4vw, 48px);
      font-weight: 800;
      color: var(--text);
      letter-spacing: -0.03em;
      line-height: 1.15;
    }

    .metric-card strong i {
      font-size: 20px;
      font-style: normal;
      vertical-align: super;
      margin-left: 2px;
      color: var(--accent);
      letter-spacing: 0;
    }

    .metric-card span {
      display: block;
      margin-top: 8px;
      color: var(--text-sub);
      font-size: 15px;
      font-weight: 500;
    }

    .metric-note {
      font-size: 13px;
      color: var(--text-weak);
      line-height: 1.7;
      padding: 14px 18px;
      border-left: 3px solid var(--primary);
      background: var(--bg);
      border-radius: 0 var(--radius) var(--radius) 0;
    }

    /* ===== FAQ ===== */
    .about-faq {
      background: var(--bg);
    }

    .faq-list {
      max-width: 900px;
      display: grid;
      gap: 16px;
      margin: 0 auto;
    }

    .faq-list details {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
      transition: box-shadow 0.2s ease, border-color 0.2s ease;
    }

    .faq-list details[open] {
      border-color: rgba(74, 127, 174, 0.35);
      box-shadow: var(--shadow);
    }

    .faq-list summary {
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 20px 24px;
      cursor: pointer;
      font-size: 16px;
      font-weight: 600;
      color: var(--text);
      transition: background 0.2s ease;
    }

    .faq-list summary:hover {
      background: var(--primary-bg);
    }

    .faq-list summary i {
      flex-shrink: 0;
      color: var(--primary);
      font-size: 17px;
      transition: transform 0.25s ease;
    }

    .faq-list details[open] summary i {
      transform: rotate(45deg);
    }

    .faq-answer {
      padding: 0 24px 22px 55px;
      color: var(--text-sub);
      line-height: 1.85;
    }

    .faq-answer p {
      margin-bottom: 12px;
    }

    .faq-answer a {
      color: var(--primary-deep);
      font-weight: 500;
      border-bottom: 1px dashed rgba(74, 127, 174, 0.5);
    }

    .faq-answer a:hover {
      border-bottom-style: solid;
      color: var(--accent);
    }

    /* ===== CTA ===== */
    .about-cta {
      padding: 40px 0 calc(var(--gap) * 1.2);
      background: var(--white);
    }

    .cta-banner {
      position: relative;
      overflow: hidden;
      background: linear-gradient(115deg, var(--primary-deep) 8%, #4A7FAE 100%);
      border-radius: 24px;
      color: #fff;
      padding: 64px 60px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 40px;
    }

    .cta-banner h2 {
      color: #fff;
      font-size: clamp(26px, 4vw, 38px);
      line-height: 1.35;
      margin-bottom: 14px;
    }

    .cta-banner p {
      color: rgba(255, 255, 255, 0.85);
      font-size: 16px;
      max-width: 520px;
      line-height: 1.8;
    }

    .cta-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      flex-shrink: 0;
    }

    /* ===== Footer ===== */
    .site-footer {
      background: #EAF1F6;
      border-top: 1px solid var(--border);
      color: var(--text-sub);
      font-size: 14px;
    }

    .footer-main {
      padding: 58px 24px 44px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.8fr 0.9fr 1fr 1.4fr;
      gap: 48px;
    }

    .footer-brand .logo-link {
      margin-bottom: 18px;
    }

    .footer-brand p {
      color: var(--text-sub);
      line-height: 1.85;
      max-width: 340px;
    }

    .footer-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 16px;
    }

    .footer-links li {
      margin-bottom: 9px;
    }

    .footer-links a,
    .footer-contact a {
      color: var(--text-sub);
      transition: color 0.2s ease;
      position: relative;
    }

    .footer-links a:hover,
    .footer-contact a:hover {
      color: var(--primary-deep);
    }

    .footer-contact p {
      display: flex;
      align-items: flex-start;
      gap: 8px;
      margin-bottom: 10px;
      color: var(--text-sub);
      line-height: 1.7;
    }

    .footer-contact svg {
      width: 18px;
      height: 18px;
      flex-shrink: 0;
      margin-top: 2px;
      color: var(--primary);
    }

    .qr-placeholder {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 108px;
      height: 108px;
      margin-top: 12px;
      border: 1px dashed var(--border);
      background: var(--white);
      border-radius: 12px;
      text-align: center;
      font-size: 13px;
      color: var(--text-weak);
      line-height: 1.4;
    }

    .footer-bottom {
      border-top: 1px solid var(--border);
      background: rgba(255, 255, 255, 0.5);
      padding: 18px 0;
    }

    .footer-bottom-inner {
      display: flex;
      flex-wrap: wrap;
      gap: 12px 28px;
      align-items: center;
      color: var(--text-weak);
      font-size: 13px;
    }

    .footer-bottom a {
      margin-left: auto;
      color: var(--primary-deep);
      font-weight: 500;
      transition: color 0.2s ease;
    }

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

    /* ===== Modal ===== */
    .modal-overlay {
      position: fixed;
      inset: 0;
      z-index: 300;
      background: rgba(31, 45, 56, 0.58);
      display: none;
      align-items: center;
      justify-content: center;
      padding: 20px;
    }

    .modal-overlay.is-open {
      display: flex;
    }

    .modal-card {
      position: relative;
      width: 100%;
      max-width: 620px;
      max-height: 92vh;
      overflow-y: auto;
      background: var(--white);
      border-radius: 20px;
      box-shadow: 0 24px 80px rgba(31, 45, 56, 0.3);
      padding: 38px 34px 34px;
      animation: modalIn 0.25s ease;
    }

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

    .modal-close {
      position: absolute;
      right: 16px;
      top: 16px;
      width: 38px;
      height: 38px;
      border: none;
      background: var(--bg);
      border-radius: 10px;
      color: var(--text);
      cursor: pointer;
      transition: background 0.2s ease, color 0.2s ease;
    }

    .modal-close:hover {
      background: #E7EFF5;
      color: var(--accent);
    }

    .modal-card h3 {
      font-size: 24px;
      margin-bottom: 10px;
    }

    .modal-card > p {
      color: var(--text-sub);
      font-size: 14px;
      line-height: 1.7;
      margin-bottom: 26px;
    }

    .form-group {
      margin-bottom: 20px;
    }

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

    .form-group input[type="text"],
    .form-group input[type="tel"],
    .form-group textarea {
      width: 100%;
      padding: 13px 15px;
      border: 1px solid var(--border);
      border-radius: 10px;
      background: var(--bg);
      font-size: 15px;
      transition: border 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    }

    .form-group input:focus,
    .form-group textarea:focus {
      outline: none;
      background: var(--white);
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(74, 127, 174, 0.12);
    }

    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .form-privacy {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      margin-bottom: 20px;
      font-size: 13px;
      color: var(--text-weak);
      line-height: 1.6;
    }

    .form-privacy input[type="checkbox"] {
      width: 16px;
      height: 16px;
      margin-top: 2px;
      accent-color: var(--primary);
    }

    .form-submit {
      width: 100%;
    }

    /* ===== Responsive ===== */
    @media (max-width: 1100px) {
      .footer-grid {
        grid-template-columns: 1fr 1fr 1fr;
        gap: 40px;
      }
      .footer-brand {
        grid-column: 1 / -1;
      }
      .footer-brand p {
        max-width: 480px;
      }
    }

    @media (max-width: 1024px) {
      :root {
        --gap: 70px;
      }
      .hero-grid {
        grid-template-columns: 1fr 1fr;
        gap: 48px;
      }
      .about-hero {
        padding: 70px 0;
      }
      .intro-grid {
        grid-template-columns: 1fr;
        gap: 48px;
      }
      .intro-media img {
        aspect-ratio: 16 / 9;
      }
      .metrics-grid {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
      }
      .process-wrap {
        padding: 28px;
      }
    }

    @media (max-width: 768px) {
      .header-inner {
        gap: 10px;
      }
      .header-search {
        display: none;
      }
      .header-cta {
        margin-left: auto;
      }
      .site-nav {
        position: absolute;
        top: 76px;
        left: 0;
        right: 0;
        display: block;
        margin-left: 0;
        background: var(--white);
        border-bottom: 1px solid var(--border);
        box-shadow: 0 18px 32px rgba(31, 45, 56, 0.08);
        padding: 12px 16px 24px;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-8px);
        transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
      }
      .site-header.nav-open .site-nav {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
      }
      .nav-list {
        display: grid;
        gap: 4px;
      }
      .nav-list a {
        padding: 12px 16px;
        border-radius: 10px;
      }
      .nav-toggle {
        display: inline-flex;
      }
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }
      .about-hero {
        padding: 56px 0;
      }
      .timeline-list::before {
        left: 34px;
      }
      .timeline-item {
        grid-template-columns: 26px 1fr;
        gap: 14px;
      }
      .timeline-year {
        grid-column: 1 / -1;
        text-align: left;
        padding-top: 0;
      }
      .timeline-dot {
        margin-top: 4px;
      }
      .timeline-card {
        grid-column: 2 / 3;
      }
      .process-item {
        grid-template-columns: 1fr;
        gap: 10px;
        padding: 28px 0;
      }
      .process-num {
        font-size: 34px;
      }
      .cta-banner {
        flex-direction: column;
        align-items: flex-start;
        padding: 44px 26px;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
      }
      .footer-bottom-inner {
        justify-content: center;
        text-align: center;
      }
      .footer-bottom a {
        margin-left: 0;
      }
      .modal-card {
        padding: 34px 20px 24px;
      }
      .form-row {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 540px) {
      :root {
        --gap: 50px;
      }
      body {
        font-size: 15px;
      }
      .container {
        padding-left: 16px;
        padding-right: 16px;
      }
      .header-inner {
        gap: 6px;
      }
      .logo-mark {
        width: 36px;
        height: 36px;
      }
      .logo-text {
        font-size: 17px;
      }
      .logo-text span {
        font-size: 10px;
      }
      .header-cta .btn {
        width: 38px;
        padding: 0;
        font-size: 0;
      }
      .header-cta .btn i {
        font-size: 16px;
      }
      .about-hero {
        padding: 42px 0;
      }
      .hero-copy > p {
        font-size: 15px;
      }
      .hero-actions {
        gap: 10px;
      }
      .btn {
        width: 100%;
      }
      .hero-summary .summary-card {
        padding: 20px;
      }
      .about-intro .intro-content h2 {
        font-size: 23px;
        line-height: 1.45;
      }
      .feature-list li {
        padding-left: 42px;
        font-size: 14px;
      }
      .metric-card {
        padding: 20px 16px;
      }
      .metric-card strong {
        font-size: 30px;
      }
      .metric-card span {
        font-size: 13px;
      }
      .metrics-grid {
        gap: 12px;
      }
      .process-wrap {
        padding: 20px 16px;
        border-radius: var(--radius);
      }
      .process-content h3 {
        font-size: 18px;
      }
      .process-content p {
        line-height: 1.8;
        font-size: 15px;
      }
      .timeline-card {
        padding: 16px;
      }
      .timeline-card h3 {
        font-size: 16px;
      }
      .timeline-card p {
        font-size: 14px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }
      .footer-brand {
        grid-column: auto;
      }
      .cta-banner {
        border-radius: 18px;
      }
    }