/* roulang page: index */
:root {
  --primary: #2B7EC1;
  --primary-dark: #18537C;
  --primary-soft: #EAF3FA;
  --primary-line: #C9DEEE;
  --accent: #E97C3F;
  --accent-dark: #C96126;
  --ink: #102A43;
  --body: #334E68;
  --muted: #627D98;
  --faint: #9FB3C8;
  --bg: #F6F9FC;
  --surface: #FFFFFF;
  --line: #D9E5EE;
  --nav-bg: #EDF3F8;
  --r-s: 8px;
  --r-m: 14px;
  --r-l: 22px;
  --shadow-card: 0 1px 3px rgba(16,24,40,.06), 0 1px 2px rgba(16,24,40,.04);
  --shadow-hover: 0 12px 28px -6px rgba(16,37,60,.14), 0 2px 8px rgba(16,37,60,.06);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--body);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Segoe UI", sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

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

ul, ol, dl, dd, figure {
  margin: 0;
  padding: 0;
}

h1, h2, h3, h4 {
  margin: 0 0 .35em;
  color: var(--ink);
  line-height: 1.3;
  font-weight: 700;
}

p {
  margin: 0 0 1em;
}

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

.site-main {
  min-height: 100vh;
  padding-left: 104px;
}

.container {
  width: 100%;
  max-width: 1340px;
  margin: 0 auto;
  padding: 0 36px;
}

.site-section {
  padding: 88px 0;
}

.site-section + .site-section {
  border-top: 1px solid rgba(217, 229, 238, .7);
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.section-head h2 {
  font-size: 28px;
  letter-spacing: -.4px;
  margin: 6px 0 4px;
}

.section-head p {
  margin: 0;
  color: var(--muted);
  max-width: 680px;
  font-size: 15px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-soft);
  border: 1px solid var(--primary-line);
  color: var(--primary-dark);
  border-radius: 999px;
  padding: 5px 13px;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: .02em;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 13px 24px;
  min-height: 46px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  transition: background-color .2s ease, border-color .2s ease, color .2s ease, transform .15s ease, box-shadow .2s ease;
  white-space: nowrap;
}

.btn svg {
  width: 17px;
  height: 17px;
  flex: 0 0 auto;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 18px -8px rgba(43, 126, 193, .55);
}

.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 10px 22px -8px rgba(24, 83, 124, .55);
}

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

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

.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 10px 24px -10px rgba(233, 124, 63, .7);
}

.btn-accent:hover {
  background: var(--accent-dark);
  color: #fff;
}

.btn:active {
  transform: translateY(1px);
}

.text-link {
  color: var(--primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border-bottom: 1px solid transparent;
  transition: border-color .2s, color .2s;
}

.text-link:hover {
  color: var(--primary-dark);
  border-color: currentColor;
}

/* Left vertical nav */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 80;
  width: 104px;
  background: var(--nav-bg);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0 16px;
}

.site-nav .brand-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  padding: 8px 4px;
}

.logo-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  background: var(--primary);
  border-radius: 12px;
  box-shadow: 0 6px 14px -6px rgba(43, 126, 193, .6);
}

.logo-mark svg {
  width: 21px;
  height: 21px;
  color: #fff;
}

.logo-text {
  display: block;
  font-size: 12px;
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: .02em;
  text-align: center;
  color: var(--ink);
}

.desktop-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
  padding: 0 10px;
}

.nav-item {
  position: relative;
}

.nav-link {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 12px 4px;
  border-radius: 11px;
  color: #516B80;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.3;
  text-align: center;
  transition: background .2s, color .2s, box-shadow .2s;
}

.nav-link svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.nav-link:hover {
  color: var(--primary-dark);
  background: rgba(255, 255, 255, .65);
}

.nav-link.active {
  color: var(--primary-dark);
  background: #fff;
  box-shadow: var(--shadow-card);
}

.nav-link.active::before {
  content: "";
  position: absolute;
  left: -10px;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 23px;
  border-radius: 0 3px 3px 0;
  background: var(--accent);
}

.nav-foot {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: var(--faint);
  font-size: 11px;
  text-align: center;
}

.nav-foot span {
  letter-spacing: .02em;
}

/* Mobile top and drawer */
.mobile-topbar {
  display: none;
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 90;
  height: 62px;
  background: var(--nav-bg);
  border-bottom: 1px solid var(--line);
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
}

.mobile-topbar .brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 9px;
}

.mobile-topbar .logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
}

.mobile-topbar .logo-text {
  font-size: 15px;
  text-align: left;
}

.burger-btn {
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 11px;
  display: grid;
  place-items: center;
  cursor: pointer;
  color: var(--ink);
  transition: background .2s, border-color .2s;
}

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

.burger-btn svg {
  width: 21px;
  height: 21px;
}

.menu-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(10, 22, 36, .38);
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  z-index: 110;
  width: min(330px, 86vw);
  height: 100dvh;
  background: #F7FAFD;
  border-left: 1px solid var(--line);
  padding: 22px 18px 30px;
  transform: translateX(105%);
  transition: transform .26s ease;
  overflow-y: auto;
}

body.menu-open .menu-overlay {
  opacity: 1;
  pointer-events: auto;
}

body.menu-open .mobile-drawer {
  transform: translateX(0);
}

.drawer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 20px;
}

.drawer-head .brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 9px;
}

.drawer-head .logo-text {
  font-size: 15px;
}

.drawer-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: #fff;
  display: grid;
  place-items: center;
  cursor: pointer;
  color: var(--muted);
  transition: color .2s, border-color .2s, transform .2s;
}

.drawer-close:hover {
  color: var(--accent);
  border-color: var(--accent);
  transform: rotate(90deg);
}

.drawer-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.drawer-link {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 14px 12px;
  border-radius: 12px;
  border: 1px solid transparent;
  background: #fff;
  color: var(--ink);
  font-weight: 600;
  font-size: 15px;
  box-shadow: var(--shadow-card);
}

.drawer-link svg {
  width: 20px;
  height: 20px;
  color: var(--primary);
}

.drawer-link:hover,
.drawer-link.active {
  border-color: var(--primary);
  background: var(--primary-soft);
  color: var(--primary-dark);
}

.drawer-meta {
  margin-top: 30px;
  padding: 18px;
  background: #EDF3F8;
  border-radius: 14px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

/* Hero */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 78vh;
  padding: 70px 0 60px;
  background:
    linear-gradient(93deg, rgba(246, 249, 252, .97) 0%, rgba(235, 245, 251, .92) 42%, rgba(219, 236, 247, .62) 100%),
    url("/assets/images/backpic/back-1.webp") center / cover;
  background-color: #E7F1F8;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  right: -120px;
  bottom: -160px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle at center, rgba(43, 126, 193, .1), rgba(43, 126, 193, 0) 68%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  width: 100%;
}

.hero-copy {
  max-width: 720px;
}

.hero-title {
  margin: 22px 0 18px;
  font-size: clamp(36px, 5vw, 56px);
  line-height: 1.16;
  letter-spacing: -1.2px;
}

.hero-sub {
  max-width: 600px;
  margin: 0 0 18px;
  font-size: 17px;
  line-height: 1.85;
  color: #3C5670;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin: 22px 0 32px;
  color: #3C5670;
  font-size: 14px;
  font-weight: 500;
}

.hero-points span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.hero-points i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex: 0 0 auto;
}

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

.scroll-cue {
  position: absolute;
  bottom: 24px;
  right: 40px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  writing-mode: horizontal-tb;
}

.scroll-cue svg {
  width: 16px;
  height: 16px;
  animation: cueDown 1.8s infinite;
}

@keyframes cueDown {
  0%, 100% { transform: translateY(0); opacity: .6; }
  50% { transform: translateY(7px); opacity: 1; }
}

/* Rail module */
.module-strip {
  background: #fff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.module-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  padding: 54px 0 22px;
}

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

.rail {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 282px;
  gap: 18px;
  overflow-x: auto;
  padding: 10px 1px 34px;
  scrollbar-width: none;
}

.rail::-webkit-scrollbar {
  display: none;
}

.rail-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform .2s ease, box-shadow .2s ease;
  display: flex;
  flex-direction: column;
}

.rail-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.rail-thumb {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #E8F1F7;
}

.rail-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .25s ease;
}

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

.rail-tag {
  position: absolute;
  left: 12px;
  top: 12px;
  background: rgba(255, 255, 255, .92);
  border: 1px solid rgba(255, 255, 255, .6);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  box-shadow: 0 2px 8px rgba(16, 42, 67, .08);
}

.rail-body {
  padding: 18px 18px 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.rail-body h3 {
  font-size: 17px;
  margin: 0;
}

.rail-body p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.75;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.rail-more {
  margin-top: auto;
  padding-top: 11px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}

/* Hot block */
.hot-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(0, .88fr);
  gap: 22px;
  align-items: stretch;
}

.feature-card {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  min-height: 470px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background: #17324B;
  box-shadow: var(--shadow-hover);
  isolation: isolate;
}

.feature-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -1;
  transition: transform .3s ease;
}

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

.feature-card::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(180deg, rgba(10, 22, 36, 0) 10%, rgba(10, 22, 36, .42) 52%, rgba(10, 22, 36, .82) 100%);
}

.feature-content {
  position: relative;
  z-index: 2;
  color: #fff;
  padding: 32px 30px 28px;
}

.feature-content .hot-label,
.hot-card .hot-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 999px;
  padding: 4px 11px;
  font-size: 12px;
  color: #fff;
  width: fit-content;
}

.hot-label svg {
  width: 14px;
  height: 14px;
  color: #FFB077;
}

.feature-content h3 {
  color: #fff;
  font-size: 27px;
  margin: 16px 0 10px;
}

.feature-content p {
  color: rgba(255, 255, 255, .82);
  margin: 0 0 14px;
  max-width: 450px;
}

.hot-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hot-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
  display: grid;
  grid-template-columns: 126px 1fr;
  gap: 12px 16px;
  align-items: center;
  box-shadow: var(--shadow-card);
  transition: transform .2s, box-shadow .2s;
  flex: 1;
}

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

.hot-card-thumb {
  width: 126px;
  height: 96px;
  object-fit: cover;
  border-radius: 11px;
  background: #D9E9F2;
}

.hot-card .hot-infos {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.hot-card h3 {
  font-size: 16px;
  line-height: 1.45;
  margin: 0;
}

.hot-card p {
  font-size: 13px;
  color: var(--muted);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.trend-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 2px;
  font-size: 12px;
  color: var(--primary);
}

.trend-bar {
  height: 4px;
  border-radius: 4px;
  background: #E4EEF5;
  flex: 1;
  overflow: hidden;
}

.trend-bar i {
  display: block;
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--primary), #57A6DF);
}

/* Latest section */
.latest-section {
  background: #fff;
}

.latest-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, .6fr);
  gap: 32px;
  align-items: start;
}

.latest-list-panel {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.latest-row {
  display: grid;
  grid-template-columns: 176px 1fr;
  gap: 22px;
  padding: 22px;
  border-bottom: 1px solid rgba(217, 229, 238, .76);
  background: #fff;
  transition: background .2s ease;
}

.latest-row:last-child {
  border-bottom: 0;
}

.latest-row:hover {
  background: #F7FBFE;
}

.latest-row:hover .latest-title {
  color: var(--primary-dark);
}

.latest-thumb-link {
  border-radius: 12px;
  overflow: hidden;
  display: block;
}

.latest-thumb {
  width: 176px;
  height: 118px;
  object-fit: cover;
  background: #D9E9F2;
  transition: transform .25s ease;
}

.latest-row:hover .latest-thumb {
  transform: scale(1.035);
}

.latest-body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 7px;
}

.latest-topline {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.latest-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--primary-soft);
  color: var(--primary-dark);
  border: 1px solid var(--primary-line);
  font-size: 12px;
  line-height: 1.4;
  padding: 3px 10px;
  border-radius: 999px;
  font-weight: 500;
}

.latest-date {
  color: var(--faint);
  font-size: 13px;
}

.latest-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.5;
  transition: color .2s;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.latest-summary {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.latest-aside {
  position: sticky;
  top: 115px;
  background: #EAF3FA;
  border: 1px solid var(--primary-line);
  border-radius: 18px;
  padding: 25px;
}

.latest-aside h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.latest-aside p {
  color: var(--body);
  font-size: 14px;
  margin-bottom: 18px;
}

.latest-aside ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 0 0 18px;
  font-size: 14px;
  color: var(--primary-dark);
}

.latest-aside li::before {
  content: "—";
  color: var(--accent);
  margin-right: 8px;
}

.empty-state {
  border: 1px dashed #B9CDE0;
  background: #F6FAFD;
  border-radius: 16px;
  padding: 54px 20px;
  text-align: center;
  color: var(--muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.empty-state svg {
  width: 46px;
  height: 46px;
  color: #9EB8CC;
}

.empty-state p {
  margin: 0;
  font-size: 15px;
}

/* Topic zone */
.topic-zone {
  background: var(--bg);
}

.topic-board {
  display: grid;
  gap: 24px;
}

.topic-cell {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px;
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 2.2fr);
  gap: 22px;
  align-items: center;
  box-shadow: var(--shadow-card);
}

.topic-number {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  flex-direction: column;
}

.topic-number strong {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--primary-soft);
  color: var(--primary-dark);
  font-size: 17px;
  font-weight: 800;
}

.topic-cell h3 {
  font-size: 19px;
  line-height: 1.5;
  margin: 8px 0;
}

.topic-cell p {
  color: var(--muted);
  font-size: 14px;
  margin: 0;
}

.topic-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
  list-style: none;
}

.topic-tags li {
  background: #F4F8FB;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 9px 16px;
  font-size: 14px;
  color: var(--body);
  line-height: 1.5;
  transition: border-color .2s, background .2s;
}

.topic-tags li strong {
  display: block;
  color: var(--ink);
  font-weight: 700;
}

.topic-tags a {
  color: var(--primary);
}

.topic-tags li:hover {
  border-color: var(--primary);
  background: var(--primary-soft);
}

/* CTA */
.cta-deep {
  position: relative;
  isolation: isolate;
  background:
    radial-gradient(circle at 88% 20%, rgba(233, 124, 63, .16), transparent 32%),
    linear-gradient(115deg, #0C1E2E 0%, #102A43 58%, #0A1624 100%);
  color: #fff;
  overflow: hidden;
}

.cta-deep::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: url("/assets/images/backpic/back-2.webp");
  background-size: cover;
  background-position: center;
  opacity: .16;
}

.cta-inner {
  padding: 84px 0;
}

.cta-card {
  max-width: 780px;
}

.cta-card .eyebrow {
  border-color: rgba(255, 255, 255, .2);
  background: rgba(255, 255, 255, .08);
  color: #fff;
}

.cta-card h2 {
  color: #fff;
  font-size: clamp(27px, 3vw, 38px);
  line-height: 1.35;
  margin: 18px 0 14px;
}

.cta-card p {
  color: rgba(255, 255, 255, .78);
  font-size: 16px;
  line-height: 1.85;
  max-width: 660px;
  margin-bottom: 25px;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 13px;
}

.cta-actions .btn-ghost {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, .45);
  color: #fff;
}

.cta-actions .btn-ghost:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, .12);
}

.cta-note {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  color: rgba(255, 255, 255, .62);
  font-size: 13px;
  list-style: none;
}

.cta-note li {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.cta-note li::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
}

/* FAQ */
.faq-grid {
  display: grid;
  grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
  gap: 50px;
  align-items: start;
}

.faq-intro {
  position: sticky;
  top: 110px;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 13px;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: border-color .2s;
}

.faq-item[open] {
  border-color: var(--primary-line);
}

.faq-item summary {
  list-style: none;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 17px 19px;
  cursor: pointer;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.5;
}

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

.faq-item summary::after {
  content: "＋";
  font-size: 20px;
  color: var(--primary);
  line-height: 1;
  flex: 0 0 auto;
  transition: transform .2s;
}

.faq-item[open] summary::after {
  content: "－";
}

.faq-answer {
  padding: 0 19px 18px;
  color: var(--body);
  font-size: 14px;
  line-height: 1.85;
}

.faq-answer p {
  margin: 0;
}

/* Footer */
.site-footer {
  background: #102535;
  color: #B8C7D4;
  padding: 64px 0 26px;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, .8fr) minmax(0, .8fr) minmax(0, 1fr);
  gap: 30px;
  padding-bottom: 38px;
}

.footer-brand .logo-text {
  color: #fff;
  font-size: 17px;
  text-align: left;
}

.footer-brand .logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
}

.footer-brand .brand-logo {
  display: flex;
  align-items: center;
  gap: 11px;
  margin-bottom: 14px;
}

.footer-brand p {
  color: #A4B8C8;
  font-size: 14px;
  line-height: 1.85;
  max-width: 300px;
  margin-bottom: 20px;
}

.footer-col h3 {
  color: #fff;
  font-size: 15px;
  margin-bottom: 15px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  color: #AFBFCD;
  font-size: 14px;
  transition: color .2s;
}

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

.footer-note {
  border-top: 1px solid rgba(255, 255, 255, .12);
  padding-top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  color: #7E96AA;
  font-size: 13px;
}

.footer-note a {
  color: #AFC6D7;
}

/* Responsive */
@media (max-width: 1200px) {
  .latest-wrap {
    grid-template-columns: 1fr;
  }

  .latest-aside {
    position: static;
  }

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

@media (max-width: 1023px) {
  .site-nav {
    display: none;
  }

  .site-main {
    padding-left: 0;
    padding-top: 62px;
  }

  .mobile-topbar {
    display: flex;
  }

  .container {
    padding: 0 20px;
  }

  .site-section {
    padding: 60px 0;
  }

  .section-head {
    margin-bottom: 28px;
  }

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

  .feature-card {
    min-height: 380px;
  }

  .topic-cell {
    grid-template-columns: 1fr;
  }

  .topic-tags {
    justify-content: flex-start;
  }

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

  .faq-intro {
    position: static;
  }
}

@media (max-width: 700px) {
  .module-head h2,
  .section-head h2 {
    font-size: 24px;
  }

  .latest-row {
    grid-template-columns: 1fr;
  }

  .latest-thumb-link,
  .latest-thumb {
    width: 100%;
    height: 170px;
  }

  .rail {
    grid-auto-columns: 248px;
    padding-bottom: 26px;
  }

  .hero-title {
    font-size: 30px;
    line-height: 1.25;
  }

  .hero-sub {
    font-size: 15px;
  }

  .hero {
    min-height: 92vh;
    padding: 50px 0 34px;
  }

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

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

  .cta-inner {
    padding: 58px 0;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 26px;
  }

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

@media (max-width: 380px) {
  .container {
    padding: 0 15px;
  }

  .rail {
    grid-auto-columns: 228px;
  }

  .topic-cell {
    padding: 20px;
  }

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

  .hot-card-thumb {
    width: 100%;
    height: 150px;
  }
}

/* roulang page: article */
:root {
  --primary: #2B7EC1;
  --primary-dark: #1A557F;
  --primary-soft: #EAF3FA;
  --accent: #E97C3F;
  --accent-light: #FF9D66;
  --bg: #F6F9FC;
  --bg-deep: #EEF3F8;
  --card: #FFFFFF;
  --ink: #102A43;
  --text: #334E68;
  --muted: #627D98;
  --disabled: #9FB3C8;
  --line: #DCE7F0;
  --shadow-sm: 0 1px 3px rgba(16, 24, 40, .06), 0 1px 2px rgba(16, 24, 40, .04);
  --shadow-lg: 0 12px 28px -6px rgba(16, 37, 60, .14), 0 2px 8px rgba(16, 37, 60, .06);
  --radius: 12px;
  --radius-lg: 18px;
  --radius-sm: 8px;
}

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

html {
  scroll-behavior: smooth;
}

html,
body {
  margin: 0;
  padding: 0;
}

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

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

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

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

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

button {
  cursor: pointer;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--ink);
  line-height: 1.3;
  margin-top: 0;
}

.container {
  width: 100%;
  max-width: 1320px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

body.nav-open {
  overflow: hidden;
}

/* ===== 左侧导航 ===== */
.site-nav {
  position: fixed;
  inset: 0 auto 0 0;
  width: 256px;
  z-index: 50;
  display: flex;
  flex-direction: column;
  background: var(--card);
  border-right: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}

.site-nav-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 20px 16px 16px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 0 8px;
  min-height: 44px;
  border-radius: var(--radius);
  transition: background .2s ease-out;
}

.brand-logo:hover {
  background: var(--primary-soft);
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  border-radius: 14px;
  background: var(--primary-soft);
  color: var(--primary);
  box-shadow: inset 0 0 0 1px rgba(43, 126, 193, .16);
}

.logo-mark svg {
  width: 26px;
  height: 26px;
}

.logo-text {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--primary-dark);
  white-space: nowrap;
}

.desktop-nav-wrap {
  margin-top: 36px;
  flex: 1;
}

.desktop-nav-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.nav-item {
  line-height: 1;
}

.nav-link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 14px;
  border-radius: 14px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text);
  transition: color .2s ease, background .2s ease, box-shadow .2s ease;
}

.nav-link svg {
  width: 21px;
  height: 21px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex: 0 0 21px;
}

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

.nav-link.active {
  color: var(--primary-dark);
  background: var(--primary-soft);
  box-shadow: inset 0 0 0 1px rgba(43, 126, 193, .18), inset 3px 0 0 var(--primary);
}

.nav-link.active span {
  font-weight: 700;
}

.nav-foot {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  padding: 14px 10px 4px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--muted);
  font-weight: 600;
}

/* 移动导航按钮 */
.mobile-nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--card);
  color: var(--ink);
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}

.mobile-nav-toggle:hover {
  background: var(--primary-soft);
  color: var(--primary);
  border-color: rgba(43, 126, 193, .4);
}

.mobile-nav-toggle svg {
  width: 22px;
  height: 22px;
  stroke-width: 2;
}

.mobile-nav-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: none;
  background: var(--primary-soft);
  color: var(--ink);
  border-radius: 50%;
  transition: background .2s ease;
}

.mobile-nav-close:hover {
  background: var(--line);
}

/* 移动抽屉 */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(320px, 84vw);
  z-index: 80;
  background: var(--card);
  border-left: 1px solid var(--line);
  box-shadow: -8px 0 30px rgba(16, 42, 67, .12);
  transform: translateX(102%);
  transition: transform .28s ease;
  display: flex;
  flex-direction: column;
}

body.nav-open .mobile-drawer {
  transform: translateX(0);
}

.drawer-backdrop {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(16, 42, 67, .4);
  opacity: 0;
  visibility: hidden;
  transition: opacity .26s ease, visibility .26s ease;
  backdrop-filter: blur(3px);
}

body.nav-open .drawer-backdrop {
  opacity: 1;
  visibility: visible;
}

.mobile-drawer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
}

.mobile-drawer-list {
  padding: 22px 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-drawer-list a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 12px;
  border-radius: 14px;
  font-weight: 600;
  font-size: 15px;
  color: var(--text);
}

.mobile-drawer-list a.active {
  color: var(--primary-dark);
  background: var(--primary-soft);
}

.mobile-drawer-list a svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ===== 文章页主体 ===== */
.article-shell {
  padding-left: 256px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.article-main-layout {
  width: 100%;
  max-width: 1500px;
  margin: 0 auto;
  padding: 30px 28px 68px;
  flex: 1;
}

.article-content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 316px;
  gap: 30px;
  align-items: start;
}

.article-center {
  min-width: 0;
  max-width: 820px;
}

.article-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.breadcrumb-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: var(--muted);
  margin: 0 0 12px;
  padding: 0 2px;
}

.breadcrumb-bar a {
  color: var(--muted);
  transition: color .2s ease;
}

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

.breadcrumb-sep {
  color: var(--disabled);
  opacity: .7;
}

.breadcrumb-current {
  max-width: 240px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text);
  font-weight: 500;
}

.article-body-wrap {
  padding: 34px 42px 42px;
}

.article-title-tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 600;
}

.article-title-tag::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 99px;
  background: var(--accent);
  flex: none;
}

.article-page-title {
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1.28;
  margin: 14px 0 16px;
}

.article-meta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 18px;
  padding-top: 15px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13.5px;
  margin-top: 14px;
}

.article-meta-row span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.article-meta-row svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.article-meta-row em {
  font-style: normal;
  color: var(--text);
  font-weight: 500;
}

/* ===== 正文长文排版 ===== */
.article-rich-content {
  margin-top: 28px;
  color: var(--text);
  font-size: 16.5px;
  line-height: 1.85;
  word-break: break-word;
}

.article-rich-content > * + * {
  margin-top: 1.15em;
}

.article-rich-content h2,
.article-rich-content h3,
.article-rich-content h4,
.article-rich-content h5,
.article-rich-content h6 {
  color: var(--ink);
  font-weight: 700;
  margin-top: 1.4em;
  margin-bottom: .5em;
}

.article-rich-content h2 {
  font-size: 25px;
  border-left: 4px solid var(--primary);
  padding-left: 14px;
  line-height: 1.4;
}

.article-rich-content h3 {
  font-size: 20px;
}

.article-rich-content h4 {
  font-size: 17px;
}

.article-rich-content p {
  margin: 0 0 1.1em;
}

.article-rich-content strong {
  color: var(--ink);
  font-weight: 700;
}

.article-rich-content a {
  color: var(--primary);
  border-bottom: 1px solid rgba(43, 126, 193, .4);
  transition: color .2s ease, border-color .2s ease;
}

.article-rich-content a:hover {
  color: var(--primary-dark);
  border-bottom-color: var(--primary-dark);
}

.article-rich-content ul,
.article-rich-content ol {
  margin: 0 0 1.2em;
  padding-left: 0;
}

.article-rich-content ul li,
.article-rich-content ol li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 8px;
}

.article-rich-content ul li::before {
  content: "";
  position: absolute;
  top: .72em;
  left: 6px;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--primary);
  opacity: .75;
}

.article-rich-content ol {
  counter-reset: list-counter;
}

.article-rich-content ol li {
  counter-increment: list-counter;
  padding-left: 30px;
}

.article-rich-content ol li::before {
  content: counter(list-counter) ".";
  position: absolute;
  left: 0;
  font-weight: 700;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
}

.article-rich-content blockquote {
  position: relative;
  margin: 26px 0;
  padding: 20px 24px 14px;
  border-radius: 16px;
  background: var(--primary-soft);
  border: 1px solid rgba(43, 126, 193, .12);
  font-size: 16px;
  color: var(--text);
}

.article-rich-content blockquote::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0;
  bottom: 0;
  width: 4px;
  border-radius: 4px;
  background: var(--primary);
}

.article-rich-content blockquote p {
  margin-bottom: .3em;
}

.article-rich-content img {
  border-radius: 16px;
  margin: 18px 0;
  box-shadow: var(--shadow-sm);
}

.article-rich-content figure {
  margin: 24px 0;
}

.article-rich-content figure figcaption {
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  margin-top: 8px;
}

.article-rich-content pre {
  background: #0F2434;
  color: #E6F1F8;
  border-radius: 16px;
  padding: 22px 24px;
  overflow-x: auto;
  font-size: 14px;
  line-height: 1.7;
  margin: 22px 0;
  box-shadow: 0 8px 20px rgba(10, 23, 36, .16);
}

.article-rich-content code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Courier, monospace;
  background: rgba(43, 126, 193, .08);
  color: var(--primary-dark);
  border-radius: 7px;
  padding: 2px 7px;
  font-size: .9em;
  word-break: break-word;
}

.article-rich-content pre code {
  background: transparent;
  color: inherit;
  padding: 0;
  font-size: .95em;
}

.article-rich-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 22px 0;
  font-size: 15px;
  background: var(--card);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: block;
  overflow-x: auto;
}

.article-rich-content th,
.article-rich-content td {
  border: 1px solid var(--line);
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
}

.article-rich-content th {
  background: var(--primary-soft);
  color: var(--ink);
  font-weight: 700;
  white-space: nowrap;
}

.article-rich-content hr {
  border: 0;
  height: 1px;
  background: var(--line);
  margin: 28px 0;
}

/* ===== 延伸入口 ===== */
.related-block {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 26px 28px 28px;
  margin-top: 14px;
}

.related-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.related-head h2 {
  font-size: 20px;
  font-weight: 700;
  margin: 0;
}

.related-more {
  font-size: 14px;
  color: var(--muted);
  transition: color .2s ease;
}

.related-more:hover {
  color: var(--primary);
}

.related-list {
  display: flex;
  flex-direction: column;
}

.related-item {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 2px;
  border-top: 1px solid var(--line);
}

.related-item:first-child {
  border-top: 0;
}

.related-index {
  font-size: 25px;
  font-weight: 800;
  color: var(--disabled);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}

.related-item:nth-child(1) .related-index {
  color: var(--primary);
}

.related-item a h3 {
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 5px;
  color: var(--ink);
  transition: color .2s ease;
}

.related-item a:hover h3 {
  color: var(--primary);
}

.related-item p {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
}

/* ===== 右侧辅助栏 ===== */
.article-aside {
  position: sticky;
  top: 26px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.side-module {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 20px 20px 20px;
}

.side-module h3 {
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.side-meta-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.side-meta-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--muted);
}

.side-meta-row svg {
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
  stroke: var(--muted);
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  margin-top: 3px;
}

.side-meta-row span {
  color: var(--text);
  font-weight: 600;
  word-break: break-all;
}

.side-nav-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.side-nav-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 8px;
  border-radius: 10px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text);
  transition: background .2s ease, color .2s ease;
}

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

.side-nav-list a span:nth-child(2) {
  color: var(--disabled);
  font-size: 13px;
  font-weight: 500;
}

.side-signal-card {
  background: linear-gradient(160deg, #11283B 0%, #0A1624 100%);
  border-radius: 18px;
  padding: 20px;
  color: #EAF3FA;
  position: relative;
  overflow: hidden;
}

.side-signal-card::after {
  content: "";
  position: absolute;
  width: 120px;
  height: 120px;
  right: -50px;
  top: -48px;
  border-radius: 50%;
  background: rgba(43, 126, 193, .25);
  border: 1px solid rgba(255, 255, 255, .18);
}

.side-signal-card h3 {
  color: #fff;
  border: 0;
  padding: 0;
  margin: 0 0 6px;
  font-size: 16px;
}

.side-signal-card p {
  margin: 0 0 16px;
  font-size: 13.5px;
  line-height: 1.6;
  color: rgba(234, 243, 250, .8);
}

.side-signal-card .side-note-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent);
  color: #fff;
  border-radius: 10px;
  padding: 9px 14px;
  font-size: 13px;
  font-weight: 600;
  box-shadow: 0 6px 18px rgba(233, 124, 63, .3);
  transition: background .2s ease, transform .2s ease;
}

.side-signal-card .side-note-btn:hover {
  background: #d96a31;
  transform: translateY(-2px);
}

/* ===== 空态 / 内容未找到 ===== */
.missing-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--card);
  border: 1px dashed var(--line);
  border-radius: 24px;
  padding: 90px 32px;
  min-height: 46vh;
}

.missing-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  border-radius: 24px;
  background: var(--primary-soft);
  color: var(--primary);
  margin-bottom: 22px;
}

.missing-icon svg {
  width: 36px;
  height: 36px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.missing-card h1 {
  font-size: 30px;
  font-weight: 800;
  margin: 0 0 10px;
}

.missing-card p {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 15px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 15px;
  padding: 0 20px;
  height: 46px;
  border: 1px solid transparent;
  transition: background .2s ease, box-shadow .2s ease, transform .15s ease, border-color .2s ease, color .2s ease;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 16px rgba(43, 126, 193, .26);
}

.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: var(--shadow-lg);
}

.btn-primary:active {
  transform: translateY(1px);
  box-shadow: none;
}

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

.btn-ghost:hover {
  color: var(--primary-dark);
  background: #D8E8F4;
}

/* ===== 页脚 ===== */
.site-footer {
  background: #0A1624;
  color: rgba(234, 243, 250, .7);
  margin-left: 256px;
  border-top: 0;
  padding: 48px 0 20px;
}

.site-footer .container {
  max-width: 1380px;
  padding-left: 30px;
  padding-right: 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) 1fr 1fr 1.2fr;
  gap: 42px;
}

.footer-brand .brand-logo {
  padding: 0 0 8px;
}

.footer-brand .brand-logo .logo-text {
  color: #fff;
  font-size: 20px;
}

.footer-brand p {
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(234, 243, 250, .65);
  margin: 12px 0 0;
  max-width: 360px;
}

.footer-col h3 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 14px;
  padding-top: 4px;
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 21px;
}

.footer-col li {
  font-size: 20px;
}

.footer-col a {
  font-size: 14px;
  color: rgba(234, 243, 250, .72);
}

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

.footer-note {
  margin-top: 44px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, .14);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(234, 243, 250, .45);
  line-height: 2;
}

.footer-note p {
  margin: 0;
}

.footer-note a {
  color: rgba(234, 243, 250, .5);
}

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

.footer-note p:last-child {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.site-footer .footer-col h3 {
  font-size: 20px;
}

.site-footer .footer-col li {
  font-size: initial;
}

.site-footer .footer-col ul {
  gap: 11px;
}

/* 白色大块导航移动状态重置 */
.site-footer .brand-logo:hover {
  background: transparent;
}

/* ===== 响应式断点 ===== */
@media (max-width: 1240px) {
  .article-content-grid {
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 22px;
  }

  .article-shell {
    padding-left: 230px;
  }

  .site-nav {
    width: 230px;
  }

  .site-footer {
    margin-left: 230px;
  }

  .article-body-wrap {
    padding: 28px;
  }

  .article-main-layout {
    padding: 22px 22px 52px;
  }
}

@media (max-width: 1024px) {
  body {
    padding-top: 64px;
  }

  .site-nav {
    position: fixed;
    inset: 0 0 auto 0;
    width: 100%;
    height: 64px;
    z-index: 70;
    flex-direction: row;
    align-items: center;
    padding: 0 16px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    background: rgba(255, 255, 255, .92);
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-sm);
  }

  .site-nav-inner {
    flex-direction: row;
    align-items: center;
    width: 100%;
    padding: 0;
  }

  .brand-logo {
    margin-right: auto;
  }

  .desktop-nav-wrap {
    display: none;
    flex: none;
    margin: 0;
  }

  .nav-foot {
    display: none;
  }

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

  .article-shell {
    padding-left: 0;
  }

  .article-main-layout {
    padding: 20px 18px 44px;
  }

  .article-content-grid {
    display: flex;
    flex-direction: column;
    max-width: 860px;
    margin: 0 auto;
  }

  .article-aside {
    position: static;
  }

  .site-footer {
    margin-left: 0;
  }
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }

  .footer-brand {
    grid-column: span 2;
  }

  .article-body-wrap {
    padding: 24px 20px 28px;
  }

  .article-page-title {
    font-size: 27px;
  }

  .article-rich-content {
    font-size: 16px;
  }

  .related-block {
    padding: 20px;
  }

  .related-item {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 10px;
  }
}

@media (max-width: 560px) {
  .article-main-layout {
    padding: 12px 0 36px;
  }

  .article-card {
    border-radius: 0;
    border-left: 0;
    border-right: 0;
  }

  .article-body-wrap {
    padding: 22px 18px 24px;
  }

  .breadcrumb-bar {
    padding: 0 18px;
  }

  .article-meta-row {
    gap: 10px 14px;
    font-size: 12.5px;
  }

  .related-block {
    border-radius: 0;
    border-left: 0;
    border-right: 0;
    padding: 20px 18px;
  }

  .article-rich-content h2 {
    font-size: 21px;
  }

  .article-rich-content h3 {
    font-size: 18px;
  }

  .article-rich-content blockquote {
    padding: 16px 18px;
  }

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

  .footer-brand {
    grid-column: auto;
  }

  .site-footer .container {
    padding-left: 20px;
    padding-right: 20px;
  }

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

/* roulang page: category1 */
:root {
  --primary: #2B7EC1;
  --primary-dark: #1A557F;
  --primary-soft: #EAF3FA;
  --accent: #E97C3F;
  --accent-bright: #FF9D66;
  --bg: #F6F9FC;
  --bg-deep: #EEF3F8;
  --card: #FFFFFF;
  --text: #102A43;
  --text-secondary: #334E68;
  --text-muted: #627D98;
  --border: #DCE7F0;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-card: 0 1px 3px rgba(16, 24, 40, .06), 0 1px 2px rgba(16, 24, 40, .04);
  --shadow-hover: 0 12px 28px -6px rgba(16, 37, 60, .14), 0 2px 8px rgba(16, 37, 60, .06);
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text-secondary);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

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

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

button {
  border: 0;
  cursor: pointer;
}

ul,
ol {
  list-style: none;
}

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

::selection {
  background: rgba(43, 126, 193, .16);
}

.container.container {
  width: 100%;
  max-width: 1180px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 30px;
  padding-right: 30px;
}

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

.main-wrap {
  margin-left: 104px;
  min-height: 60vh;
}

/* ============ 左侧导航 ============ */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 104px;
  bottom: 0;
  z-index: 80;
  background: var(--bg-deep);
  border-right: 1px solid var(--border);
  padding: 28px 12px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.brand-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
  border-radius: 12px;
  padding: 4px 2px;
  transition: background .2s ease;
}

.brand-logo:hover {
  background: rgba(255, 255, 255, .7);
}

.logo-mark {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 18px -8px rgba(43, 126, 193, .55);
  transition: transform .2s ease;
}

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

.brand-logo:hover .logo-mark {
  transform: translateY(-2px);
}

.logo-text {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: .02em;
  line-height: 1.3;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--primary-soft);
  color: var(--primary-dark);
  align-items: center;
  justify-content: center;
}

.nav-toggle svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
}

.desktop-nav-wrap {
  margin-top: 34px;
  width: 100%;
}

.desktop-nav-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.nav-item {
  width: 100%;
}

.nav-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 5px 10px;
  border-radius: 12px;
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1.2;
  text-align: center;
  border: 1px solid transparent;
  transition: all .2s ease;
}

.nav-link svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.nav-link:hover {
  background: #fff;
  color: var(--primary-dark);
  border-color: rgba(43, 126, 193, .1);
  box-shadow: var(--shadow-card);
}

.nav-link.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 10px 18px -10px rgba(43, 126, 193, .7);
}

.nav-link.active svg {
  stroke: #fff;
}

.nav-foot {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  color: var(--text-muted);
  font-size: 9px;
  letter-spacing: .08em;
  padding: 8px 0 0;
  border-top: 1px solid rgba(16, 42, 67, .07);
  width: 100%;
  text-align: center;
  white-space: nowrap;
}

.nav-foot span:first-child {
  font-size: 12px;
  font-weight: 800;
  color: var(--primary-dark);
}

/* ============ Hero ============ */
.page-hero {
  position: relative;
  overflow: hidden;
  min-height: 420px;
  display: flex;
  align-items: center;
  background:
    linear-gradient(105deg, rgba(246, 249, 252, .98) 6%, rgba(246, 249, 252, .84) 42%, rgba(225, 235, 244, .62) 74%),
    url('/assets/images/backpic/back-1.webp') no-repeat center / cover;
  background-color: #d6e2ec;
  border-bottom: 1px solid var(--border);
}

.page-hero-inner {
  width: 100%;
  padding-top: 74px;
  padding-bottom: 74px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-dark);
  background: rgba(255, 255, 255, .6);
  border: 1px solid rgba(43, 126, 193, .18);
  border-radius: 999px;
  padding: 6px 14px;
  letter-spacing: .04em;
}

.hero-dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(233, 124, 63, .4);
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(233, 124, 63, .35); }
  70% { box-shadow: 0 0 0 8px rgba(233, 124, 63, 0); }
  100% { box-shadow: 0 0 0 0 rgba(233, 124, 63, 0); }
}

.page-hero h1 {
  font-size: 46px;
  line-height: 1.2;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -.02em;
  margin-top: 18px;
}

.page-hero .hero-lead {
  max-width: 640px;
  font-size: 18px;
  color: var(--text-secondary);
  margin-top: 16px;
}

.page-hero .hero-actions {
  align-items: center;
  gap: 14px;
  display: flex;
  flex-wrap: wrap;
  margin-top: 26px;
}

.page-hero .hero-note {
  margin-top: 24px;
  font-size: 14px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-note i {
  display: inline-flex;
  width: 26px;
  height: 26px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-style: normal;
  font-weight: 700;
}

/* ============ 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  padding: 14px 22px;
  transition: all .2s ease;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 16px -8px rgba(43, 126, 193, .5);
}

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

.btn-primary:active {
  transform: translateY(1px);
}

.btn-outline {
  background: rgba(255, 255, 255, .8);
  color: var(--primary-dark);
  border-color: rgba(43, 126, 193, .3);
}

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

.btn-accent {
  background: var(--accent);
  color: #13252f;
  box-shadow: 0 10px 18px -8px rgba(233, 124, 63, .45);
}

.btn-accent:hover {
  background: var(--accent-bright);
  color: #111B26;
  transform: translateY(-1px);
}

.btn-accent:active {
  transform: translateY(1px);
}

.btn-dark-line {
  border: 1px solid rgba(255, 255, 255, .35);
  color: #f0f6fc;
  background: rgba(255, 255, 255, .05);
}

.btn-dark-line:hover {
  background: rgba(255, 255, 255, .12);
}

/* ============ 区块 ============ */
.block {
  padding: 86px 0;
}

.block-soft {
  padding: 86px 0;
  background: rgba(234, 243, 250, .45);
}

.block-head {
  max-width: 720px;
  margin-bottom: 42px;
}

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

.block-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary-dark);
  background: var(--primary-soft);
  border: 1px solid rgba(43, 126, 193, .14);
  padding: 5px 14px;
  border-radius: 999px;
  letter-spacing: .02em;
}

.block-label em {
  font-style: normal;
  color: var(--accent);
}

.block-head h2 {
  font-size: 30px;
  line-height: 1.3;
  font-weight: 800;
  color: var(--text);
  margin-top: 16px;
  letter-spacing: -.01em;
}

.block-head p {
  margin-top: 13px;
  font-size: 16px;
  color: var(--text-muted);
}

/* ============ 统计带 ============ */
.stat-strip {
  background: var(--text);
  border-radius: 18px;
  color: #fff;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  overflow: hidden;
  box-shadow: var(--shadow-hover);
}

.stat-cell {
  padding: 28px 20px;
  background: #132a3b;
  text-align: center;
}

.stat-cell strong {
  display: block;
  font-size: 28px;
  font-weight: 800;
  color: #fff;
  font-variant-numeric: tabular-nums;
}

.stat-cell strong span {
  color: var(--accent-bright);
  font-size: 20px;
  margin-left: 2px;
}

.stat-cell small {
  display: block;
  font-size: 13px;
  color: rgba(255, 255, 255, .68);
  margin-top: 6px;
}

/* ============ 模块方案 ============ */
.module-lead {
  display: grid;
  grid-template-columns: 11fr 13fr;
  gap: 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.module-copy {
  padding: 36px 24px 32px 36px;
  align-self: center;
}

.module-copy h3 {
  font-size: 24px;
  color: var(--text);
  font-weight: 800;
  margin-bottom: 14px;
}

.module-copy p {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.check-list {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
}

.check-list li::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  flex: 0 0 auto;
  margin-top: 10px;
}

.module-media {
  min-height: 280px;
  background: #cfe0eb url('/assets/images/coverpic/cover-1.png') no-repeat center / cover;
}

.module-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 280px;
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 20px;
  margin-top: 20px;
}

.module-card {
  grid-column: span 6;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-card);
  transition: all .2s ease;
}

.module-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(43, 126, 193, .25);
}

.module-card__icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--primary-soft);
  color: var(--primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 18px;
  border: 1px solid rgba(43, 126, 193, .12);
}

.module-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 9px;
}

.module-card p {
  font-size: 14.5px;
  color: var(--text-muted);
}

/* ============ 分层方案 ============ */
.layer-cols {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 40px;
  align-items: center;
}

.layer-intro h3 {
  font-size: 26px;
  font-weight: 800;
  color: var(--text);
  line-height: 1.45;
  margin-bottom: 16px;
}

.layer-intro p {
  color: var(--text-muted);
  margin-bottom: 18px;
}

.layer-rows {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.layer-row {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  display: grid;
  grid-template-columns: 52px 1fr 34px;
  gap: 16px;
  align-items: center;
  box-shadow: var(--shadow-card);
  transition: all .2s ease;
}

.layer-row:hover {
  transform: translateX(-3px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(43, 126, 193, .25);
}

.layer-num {
  font-size: 26px;
  font-weight: 800;
  color: #b6d2e3;
  letter-spacing: -.05em;
}

.layer-row strong {
  display: block;
  color: var(--text);
  font-size: 16.5px;
  margin-bottom: 3px;
}

.layer-row span {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.55;
}

.layer-tag {
  font-size: 12px;
  text-align: center;
  color: var(--primary-dark);
  background: var(--primary-soft);
  border-radius: 999px;
  padding: 4px 9px;
  white-space: nowrap;
}

/* ============ 场景 ============ */
.scenario-grid {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 22px;
}

.scenario-card {
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--border);
  background: var(--card);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
}

.scenario-card.is-wide {
  border: 0;
  border-radius: 22px;
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(140deg, rgba(16, 42, 67, .92), rgba(11, 28, 44, .8)),
    url('/assets/images/coverpic/cover-4.png') center / cover;
  color: #fff;
}

.scenario-card.is-wide::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(16, 42, 67, .2), rgba(16, 42, 67, .75));
}

.scenario-card > * {
  position: relative;
  z-index: 1;
}

.scenario-tag {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(233, 124, 63, .16);
  color: var(--accent);
  letter-spacing: .02em;
  margin-bottom: 18px;
}

.scenario-card.is-wide .scenario-tag {
  background: rgba(255, 157, 102, .15);
  color: var(--accent-bright);
}

.scenario-card h3 {
  font-size: 22px;
  line-height: 1.4;
  font-weight: 800;
  margin-bottom: 12px;
}

.scenario-card.is-wide h3 {
  color: #fff;
}

.scenario-card p {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-muted);
}

.scenario-card.is-wide p {
  color: rgba(255, 255, 255, .76);
}

.scenario-list {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.scenario-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 14px;
  color: var(--text-secondary);
}

.scenario-list li i {
  font-style: normal;
  color: var(--primary);
  font-weight: 800;
}

.scenario-card.is-wide .scenario-list li {
  color: rgba(255, 255, 255, .8);
}

/* ============ 实施流程 ============ */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.step-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  box-shadow: var(--shadow-card);
  position: relative;
  transition: all .2s ease;
}

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

.step-count {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: var(--primary-soft);
  color: var(--primary-dark);
  font-weight: 800;
  font-size: 15px;
  margin-bottom: 18px;
}

.step-item h3 {
  font-size: 17px;
  color: var(--text);
  font-weight: 700;
  margin-bottom: 8px;
}

.step-item p {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ============ FAQ ============ */
.faq-grid {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.faq-q {
  width: 100%;
  padding: 18px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  background: transparent;
  text-align: left;
  font-size: 16px;
  color: var(--text);
  font-weight: 600;
  transition: background .2s;
}

.faq-q:hover {
  background: var(--primary-soft);
}

.faq-q .faq-icon {
  flex: 0 0 auto;
  font-size: 20px;
  color: var(--primary);
  transition: transform .25s ease;
}

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

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .28s ease, padding .28s ease;
  padding: 0 22px;
}

.faq-item.is-open .faq-a {
  max-height: 300px;
  padding: 0 22px 18px;
  border-top: 1px dashed rgba(43, 126, 193, .14);
}

.faq-a p {
  padding-top: 13px;
  font-size: 14.5px;
  color: var(--text-secondary);
  line-height: 1.85;
}

/* ============ CTA ============ */
.cta-zone {
  background:
    radial-gradient(circle at 75% 20%, rgba(233, 124, 63, .18), transparent 22%),
    linear-gradient(135deg, #0F2435, #091823);
  border-radius: 24px;
  overflow: hidden;
  color: #fff;
  position: relative;
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 34px;
  padding: 44px 40px;
  flex-wrap: wrap;
}

.cta-copy h2 {
  font-size: 30px;
  font-weight: 800;
  line-height: 1.4;
  color: #fff;
}

.cta-copy p {
  color: rgba(255, 255, 255, .72);
  margin-top: 10px;
  max-width: 560px;
}

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

/* ============ 页脚 ============ */
.site-footer {
  margin-left: 104px;
  background: #fff;
  border-top: 1px solid var(--border);
  padding: 56px 0 22px;
  color: var(--text-secondary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 36px;
}

.footer-brand .brand-logo {
  display: inline-flex;
  flex-direction: row;
  align-items: center;
  gap: 10px;
  flex-direction: row;
}

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

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

.footer-brand p {
  margin-top: 16px;
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 340px;
}

.footer-col h3 {
  font-size: 15px;
  color: var(--text);
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-col ul a {
  font-size: 13.5px;
  color: var(--text-muted);
  transition: all .2s ease;
  display: inline-block;
}

.footer-col ul a:hover {
  color: var(--primary);
  transform: translateX(2px);
}

.footer-note {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  border-top: 1px solid var(--border);
  margin-top: 46px;
  padding-top: 20px;
  font-size: 12.5px;
  color: var(--text-muted);
  gap: 10px;
}

.footer-note a {
  color: var(--text-muted);
}

.footer-note a:hover {
  color: var(--primary);
}

/* ============ 响应式 ============ */
@media (max-width: 1023px) {
  .main-wrap {
    margin-left: 0;
    padding-top: 64px;
  }

  .site-footer {
    margin-left: 0;
    padding-bottom: 30px;
  }

  .site-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: auto;
    height: 64px;
    min-height: 0;
    flex-direction: row;
    justify-content: space-between;
    padding: 0 16px;
    background: rgba(238, 243, 248, .96);
    backdrop-filter: blur(9px);
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .brand-logo {
    flex-direction: row;
    gap: 9px;
    align-items: center;
  }

  .logo-mark {
    width: 36px;
    height: 36px;
    border-radius: 10px;
  }

  .logo-text {
    font-size: 15px;
    white-space: nowrap;
  }

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

  .nav-foot {
    display: none;
  }

  .desktop-nav-wrap {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    margin: 0;
    width: auto;
    transform: translateX(100%);
    transition: transform .28s ease;
    background: rgba(246, 249, 252, .98);
    backdrop-filter: blur(10px);
    padding: 28px 24px;
    border-top: 1px solid var(--border);
    z-index: 79;
    overflow-y: auto;
  }

  .site-nav.is-open .desktop-nav-wrap {
    transform: translateX(0);
  }

  .desktop-nav-list {
    gap: 8px;
  }

  .nav-link {
    flex-direction: row;
    justify-content: flex-start;
    gap: 14px;
    padding: 15px 16px;
    font-size: 15px;
    border: 1px solid transparent;
  }

  .nav-link svg {
    width: 24px;
    height: 24px;
  }

  .page-hero {
    min-height: 0;
    background:
      linear-gradient(160deg, rgba(246, 249, 252, .96) 10%, rgba(234, 243, 250, .8) 65%, rgba(225, 235, 244, .5) 100%),
      url('/assets/images/backpic/back-2.webp') no-repeat center / cover;
  }

  .page-hero-inner {
    padding: 72px 0;
  }

  .page-hero h1 {
    font-size: 38px;
  }

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

  .module-lead {
    grid-template-columns: 1fr;
  }

  .module-copy {
    order: 1;
    padding: 24px;
  }

  .module-media {
    order: 0;
  }

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

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

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

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

@media (max-width: 767px) {
  .block, .block-soft {
    padding: 56px 0;
  }

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

  .page-hero h1 {
    font-size: 31px;
  }

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

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

  .module-card {
    grid-column: span 12;
  }

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

  .cta-inner {
    padding: 34px 24px;
    flex-direction: column;
    align-items: flex-start;
  }

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

  .stat-cell {
    padding: 22px 14px;
  }

  .layer-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .layer-tag {
    width: fit-content;
    margin-top: 2px;
  }

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

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

  .footer-note p + p {
    margin-top: 4px;
  }

  .footer-brand p {
    max-width: 100%;
  }
}

@media (max-width: 480px) {
  .container.container {
    padding-left: 16px;
    padding-right: 16px;
  }

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

  .page-hero h1 {
    font-size: 28px;
    letter-spacing: -.01em;
  }

  .block-head p {
    font-size: 14.5px;
  }

  .cta-copy h2 {
    font-size: 25px;
  }
}

/* roulang page: category2 */
:root{
            --primary:#2B7EC1;
            --primary-dark:#1A557F;
            --primary-soft:#EAF3FA;
            --accent:#E97C3F;
            --accent-bright:#FF9D66;
            --page:#F6F9FC;
            --nav-bg:#EEF3F8;
            --card:#FFFFFF;
            --ink:#102A43;
            --body:#334E68;
            --muted:#627D98;
            --line:#DCE6F0;
            --line-soft:#E6EEF5;
            --radius:14px;
            --radius-lg:22px;
            --shadow-sm:0 1px 3px rgba(16,24,40,.06),0 1px 2px rgba(16,24,40,.04);
            --shadow-lg:0 12px 28px -6px rgba(16,37,60,.14),0 2px 8px rgba(16,37,60,.06);
            --right:0 4px 0 0;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            background:var(--page);
            color:var(--body);
            font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
            font-size:16px;
            line-height:1.75;
        }
        img{max-width:100%;display:block}
        a{color:inherit;text-decoration:none}
        button{font-family:inherit}
        h1,h2,h3,h4,p,ul,figure,blockquote{margin:0}
        ul{list-style:none;padding:0}
        .container{width:min(1200px,100% - 48px);margin-inline:auto}
        .page-shell{margin-left:108px;min-height:100vw}
        .site-nav{
            position:fixed;
            top:0;left:0;bottom:0;
            width:108px;
            background:var(--nav-bg);
            border-right:1px solid var(--line);
            display:flex;
            flex-direction:column;
            align-items:stretch;
            z-index:50;
        }
        .brand-logo{
            display:flex;
            flex-direction:column;
            align-items:center;
            gap:8px;
            padding:22px 8px 14px;
            color:var(--ink);
        }
        .logo-mark{
            width:34px;height:34px;
            color:var(--primary);
            display:inline-flex;
        }
        .logo-text{
            font-size:13px;
            font-weight:800;
            letter-spacing:.02em;
            line-height:1.2;
            text-align:center;
            color:var(--ink);
        }
        .nav-foot{
            margin-top:auto;
            padding:14px 4px 18px;
            display:flex;
            flex-direction:column;
            align-items:center;
            gap:3px;
            color:var(--muted);
            font-size:9px;
            font-weight:800;
            letter-spacing:.18em;
            text-transform:uppercase;
        }
        .nav-foot span:first-child{color:var(--primary)}
        .desktop-nav-wrap{padding:6px 10px 0}
        .desktop-nav-list{display:flex;flex-direction:column;gap:6px}
        .nav-item{width:100%}
        .nav-link{
            display:flex;
            flex-direction:column;
            align-items:center;
            gap:5px;
            border-radius:10px;
            padding:10px 2px 8px;
            color:var(--muted);
            font-size:12px;
            font-weight:600;
            text-align:center;
            line-height:1.35;
            transition:background .2s,color .2s,box-shadow .2s;
        }
        .nav-link svg{
            width:20px;height:20px;
            fill:none;
            stroke:currentColor;
            stroke-width:1.9;
            stroke-linecap:round;
            stroke-linejoin:round;
        }
        .nav-link:hover{color:var(--primary);background:rgba(255,255,255,.55)}
        .nav-link.active{
            background:var(--primary);
            color:#fff;
            box-shadow:0 7px 14px -8px rgba(43,126,193,.8);
        }
        .mobile-bar{
            display:none;
        }
        body.nav-open .desktop-nav-wrap{
            display:block;
        }
        .page-section{padding:72px 0}
        .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
        .eyebrow{
            display:inline-flex;
            align-items:center;
            gap:6px;
            font-size:12px;
            font-weight:800;
            letter-spacing:.16em;
            color:var(--accent);
            text-transform:uppercase;
            margin-bottom:8px;
        }
        .section-title{
            color:var(--ink);
            font-size:26px;
            line-height:1.3;
            font-weight:800;
        }
        .section-copy{color:var(--muted);font-size:14px;max-width:640px;margin-top:8px}
        .btn{
            display:inline-flex;
            align-items:center;
            justify-content:center;
            gap:8px;
            border:0;
            border-radius:8px;
            padding:10px 18px;
            font-size:15px;
            font-weight:700;
            line-height:1.4;
            cursor:pointer;
            background:transparent;
            transition:transform .18s,box-shadow .18s,background-color .18s,color .18s;
            outline:none;
        }
        .btn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
        .btn-primary{background:var(--primary);color:#fff}
        .btn-primary:hover{background:var(--primary-dark);box-shadow:0 8px 18px -10px rgba(26,85,127,.9)}
        .btn-accent{background:var(--accent);color:#fff}
        .btn-accent:hover{background:#d5652c;box-shadow:0 10px 20px -10px rgba(233,124,63,.9)}
        .btn-outline{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 1px var(--line)}
        .btn-outline:hover{background:var(--primary-soft);box-shadow:inset 0 0 0 1px var(--primary)}
        .btn:active{transform:translateY(1px)}
        .card{
            background:var(--card);
            border:1px solid var(--line-soft);
            border-radius:var(--radius);
            box-shadow:var(--shadow-sm);
        }
        .hero-sub{color:#334e68;font-weight:500;font-size:15px;letter-spacing:.02em}
        .tag{
            display:inline-flex;
            align-items:center;
            gap:4px;
            background:var(--primary-soft);
            color:var(--primary-dark);
            border-radius:999px;
            padding:4px 10px;
            font-size:12px;
            font-weight:700;
        }
        .tag-orange{
            background:rgba(233,124,63,.12);
            color:#c65d23;
        }
        .icon-dot{width:6px;height:6px;border-radius:99px;background:var(--accent)}
        .grid-card{display:table}
        .grid-box{
            transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
        }
        .grid-box:hover{
            transform:translateY(-4px);
            box-shadow:var(--shadow-lg);
            border-color:rgba(43,126,193,.28);
        }
        .slash-panel{
            background:#101d2a;
            color:#fff;
            border-radius:18px;
            overflow:hidden;
        }
        .slash-title{
            color:#fff;
            font-size:22px;
            line-height:1.35;
            font-weight:800;
        }
        .slash-panel p{
            color:#e3edf5;
        }
        .num-line{
            font-size:30px;
            color:var(--primary);
            font-weight:800;
            letter-spacing:-.03em;
        }
        .num-line small{font-size:14px;color:var(--ink);font-weight:800;margin-left:4px}
        .faq-item{
            background:#fff;
            border:1px solid var(--line-soft);
            border-radius:12px;
            margin-bottom:12px;
            overflow:hidden;
            box-shadow:var(--shadow-sm);
        }
        .faq-q{
            display:flex;
            align-items:center;
            justify-content:space-between;
            gap:14px;
            width:100%;
            padding:17px 20px;
            background:none;
            border:0;
            text-align:left;
            font-size:16px;
            color:var(--ink);
            font-weight:700;
            cursor:pointer;
            transition:background .2s;
        }
        .faq-q:hover{background:#f8fbfe}
        .faq-q .plus{
            width:24px;height:24px;
            min-width:24px;
            margin-left:auto;
            position:relative;
            border-radius:8px;
            border:1px solid var(--line);
            display:inline-block;
            transition:transform .2s,border-color .2s;
        }
        .faq-q .plus::before,.faq-q .plus::after{
            content:"";
            position:absolute;
            left:50%;top:50%;
            background:var(--primary);
            transform:translate(-50%,-50%);
            border-radius:4px;
        }
        .faq-q .plus::before{width:10px;height:2px}
        .faq-q .plus::after{width:2px;height:10px;transition:transform .2s}
        .faq-item.open .plus{transform:rotate(45deg);border-color:var(--primary)}
        .faq-a{
            max-height:0;
            overflow:hidden;
            transition:max-height .3s ease;
        }
        .faq-a-inner{
            padding:4px 56px 20px 20px;
            color:var(--body);
            font-size:15px;
        }
        .breadcrumb{
            display:flex;
            align-items:center;
            flex-wrap:wrap;
            gap:6px;
            font-size:13px;
            color:var(--muted);
            margin-bottom:18px;
        }
        .breadcrumb a{color:var(--muted)}
        .breadcrumb a:hover{color:var(--primary)}
        .breadcrumb .sep{opacity:.5}
        .case-grid{
            display:grid;
            grid-template-columns:1.1fr .9fr;
            gap:18px;
        }
        .case-row{
            display:grid;
            grid-template-columns:1.18fr .82fr;
            gap:18px;
        }
        .case-grid .wide{
            background:var(--ink);
            border-radius:16px;
            overflow:hidden;
            min-height:300px;
            display:flex;
            flex-direction:column;
            justify-content:flex-end;
            position:relative;
        }
        .case-grid .wide .cover-img{
            position:absolute;
            inset:0;
            width:100%;
            height:100%;
            object-fit:cover;
            opacity:.7;
        }
        .case-grid .wide .content{
            position:relative;
            z-index:2;
            padding:22px;
        }
        .case-grid .sub-card{
            background:#fff;
            border:1px solid var(--line-soft);
            border-radius:16px;
            padding:20px;
            box-shadow:var(--shadow-sm);
        }
        .case-no{
            font-size:12px;
            font-weight:800;
            letter-spacing:.18em;
            color:var(--accent);
        }
        .process-strip{
            display:grid;
            grid-template-columns:repeat(4,1fr);
            gap:14px;
        }
        .process-step{
            background:#fff;
            border:1px solid var(--line-soft);
            border-radius:14px;
            padding:20px;
            position:relative;
            box-shadow:var(--shadow-sm);
        }
        .step-index{
            display:inline-flex;
            width:28px;
            height:28px;
            background:var(--primary-soft);
            color:var(--primary-dark);
            border-radius:8px;
            align-items:center;
            justify-content:center;
            font-weight:800;
            font-size:14px;
        }
        .step-arrow{
            width:16px;height:16px;
            border-top:2px solid var(--line);
            border-right:2px solid var(--line);
            transform:rotate(45deg);
            display:none;
        }
        .cta-block{
            background:
                linear-gradient(110deg,rgba(9,23,38,.9),rgba(8,17,28,.96)),
                url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            border-radius:22px;
            padding:48px;
            color:#fff;
            position:relative;
            overflow:hidden;
        }
        .cta-block h2{color:#fff}
        .cta-block p{color:#d6e2ed}
        /* horizontal rail */
        .rail{display:flex;gap:16px;overflow-x:auto;padding-bottom:10px;scroll-snap-type:x mandatory}
        .rail .rail-card{
            min-width:280px;
            max-width:280px;
            scroll-snap-align:start;
            background:#fff;
            border:1px solid var(--line-soft);
            border-radius:14px;
            box-shadow:var(--shadow-sm);
            overflow:hidden;
            cursor:pointer;
            transition:transform .2s,box-shadow .2s;
        }
        .rail .rail-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
        .rail::-webkit-scrollbar{height:6px}
        .rail::-webkit-scrollbar-thumb{background:#c6d3e0;border-radius:99px}
        .rail::-webkit-scrollbar-track{background:transparent}
        .cover-img{
            width:100%;
            height:150px;
            object-fit:cover;
            display:block;
            background:#dce8f1;
        }
        .card-cover-2{height:200px}
        .section-line{
            border-bottom:1px solid var(--line-soft);
        }
        .result-num{
            font-size:26px;
            font-weight:800;
            color:var(--ink);
            letter-spacing:-.02em;
        }
        .result-num span{
            font-size:13px;
            color:var(--muted);
            font-weight:500;
            margin-left:8px;
        }
        .form-row{
            display:grid;
            grid-template-columns:1fr 1fr;
            gap:14px;
        }
        .contact-form .field{
            width:100%;
            min-height:44px;
            background:#fff;
            border:1px solid var(--line);
            border-radius:9px;
            padding:0 12px;
            font-size:15px;
            color:var(--ink);
            outline:none;
            transition:border-color .2s,box-shadow .2s;
        }
        .contact-form textarea.field{padding:12px;min-height:90px;resize:vertical}
        .contact-form .field:focus{
            border-color:var(--primary);
            box-shadow:0 0 0 3px rgba(43,126,193,.15);
        }
        .site-footer{
            background:#0e1b28;
            color:#b5c6d6;
            font-size:14px;
        }
        .site-footer .brand-logo .logo-text{color:#fff}
        .site-footer .logo-mark{
            width:28px;height:28px;
        }
        .footer-grid{
            display:grid;
            grid-template-columns:1.4fr 1fr 1fr 1fr;
            gap:30px;
            padding:52px 0 30px;
        }
        .footer-brand p{
            color:#8fa6bb;
            font-size:14px;
            line-height:1.8;
        }
        .site-footer h3{
            color:#fff;
            font-size:15px;
            margin-bottom:16px;
            font-weight:700;
        }
        .footer-col ul li{margin-bottom:8px}
        .footer-col a{color:#a9bed2}
        .footer-col a:hover{color:var(--accent-bright)}
        .footer-note{
            border-top:1px solid rgba(255,255,255,.1);
            padding:18px 0 20px;
            display:flex;
            justify-content:space-between;
            gap:14px;
            flex-wrap:wrap;
            font-size:13px;
            color:#8fa6bb;
        }
        .footer-note a{color:#a9bed2}
        .footer-note a:hover{color:var(--accent-bright)}
        .mobile-nav-toggle{
            display:none;
            width:40px;height:40px;
            background:transparent;
            border:1px solid var(--line);
            border-radius:10px;
            color:var(--ink);
            align-items:center;
            justify-content:center;
            cursor:pointer;
        }
        .mobile-nav-toggle svg,
        .mobile-nav-toggle .close-icon{
            width:18px;height:18px;
            flex:0 0 auto;
        }
        .nav-toggle .open-icon{display:block}
        .nav-toggle .close-icon{display:none}
        body.nav-open .nav-toggle .close-icon{display:block}
        body.nav-open .nav-toggle .open-icon{display:none}
        .mobile-nav-toggle .open-icon,.mobile-nav-toggle .close-icon{stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
        .status-bar{
            border-left:3px solid var(--accent);
        }
        .case-meta{
            display:grid;
            grid-template-columns:repeat(2,1fr);
            gap:10px;
            margin-top:16px;
        }
        .case-meta div{
            background:#f7fafc;
            border-radius:10px;
            padding:10px 12px;
            font-size:12px;
            color:var(--body);
        }
        .case-meta strong{display:block;color:var(--ink);font-size:14px;margin-bottom:2px}
        @media(max-width:1199px){
            .case-grid,.case-row{grid-template-columns:1fr}
            .case-row .sub-card{min-width:0}
        }
        @media(max-width:1023px){
            .page-shell{margin-left:0}
            .site-nav{
                width:100%;
                height:60px;
                bottom:auto;
                display:flex;
                flex-direction:row;
                align-items:center;
                justify-content:space-between;
                background:rgba(246,249,252,.94);
                backdrop-filter:blur(10px);
                border-right:0;
                border-bottom:1px solid var(--line);
                padding:0 16px;
            }
            .brand-logo{
                flex-direction:row;
                gap:6px;
                padding:0;
                min-width:0;
            }
            .logo-mark{width:30px;height:30px}
            .logo-text{font-size:15px;color:var(--ink);text-align:left;white-space:nowrap}
            .desktop-nav-wrap{
                display:none;
                position:fixed;
                top:60px;
                left:0;right:0;
                background:#eef3f8;
                border-bottom:1px solid var(--line);
                box-shadow:0 16px 30px -20px rgba(16,42,67,.3);
                padding:10px 14px 14px;
                max-height:calc(100vh - 60px);
                overflow-y:auto;
            }
            .desktop-nav-list{
                flex-direction:column;
                gap:6px;
            }
            .nav-link{
                flex-direction:row;
                justify-content:flex-start;
                padding:12px 10px;
                border-radius:10px;
            }
            .nav-link.active{background:var(--primary);color:#fff}
            .nav-foot{
                display:none;
            }
            .nav-toggle{
                display:inline-flex;
                align-items:center;
                justify-content:center;
                gap:6px;
                width:44px;height:40px;
            }
            .mobile-bar{
                display:flex;
                width:100%;
                justify-content:space-between;
                align-items:center;
                gap:16px;
            }
            .mobile-nav-toggle{
                display:inline-flex;
                flex-direction:column;
                gap:4px;
                align-items:center;
                justify-content:center;
                background:transparent;
                border:1px solid var(--line-soft);
                border-radius:10px;
                width:44px;
                height:40px;
                position:relative;
            }
            .mobile-nav-toggle .line{
                width:20px;height:2px;
                background:var(--ink);
                border-radius:2px;
                transition:transform .2s,opacity .2s;
            }
            body.nav-open .mobile-nav-toggle .line:nth-child(1){transform:translateY(6px) rotate(45deg)}
            body.nav-open .mobile-nav-toggle .line:nth-child(2){opacity:0}
            body.nav-open .mobile-nav-toggle .line:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
        }
        @media(max-width:768px){
            .page-section{padding:56px 0}
            .container{width:min(100% - 32px,1200px)}
            .section-title{font-size:22px}
            .process-strip{
                grid-template-columns:1fr 1fr;
            }
            .process-step:nth-child(2) .step-arrow{
                display:none;
            }
            .cta-block{
                padding:32px 22px;
            }
            .footer-grid{
                grid-template-columns:1fr;
                gap:22px;
                padding:40px 0 24px;
            }
            .form-row{
                grid-template-columns:1fr;
            }
            .case-meta{
                grid-template-columns:1fr 1fr;
            }
        }
        @media(max-width:520px){
            .container{width:min(100% - 24px,1200px)}
            .rail .rail-card{
                min-width:250px;
                max-width:250px;
            }
            .process-strip{grid-template-columns:1fr}
            .footer-note{
                flex-direction:column;
                align-content:flex-start;
            }
            .case-meta{grid-template-columns:1fr}
            .logo-text{font-size:14px}
        }
        .visual-hero{
            background:
                linear-gradient(100deg,rgba(246,249,252,.98) 0,rgba(238,244,250,.92) 45%,rgba(216,228,240,.55) 100%),
                url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            border-bottom:1px solid var(--line);
        }
        .visual-hero .bg-grid{
            position:relative;
            color:var(--ink);
            padding:84px 0 64px;
        }
        .visual-hero::after{
            content:"";
            position:absolute;
            inset:0;
            pointer-events:none;
            background-image:linear-gradient(rgba(43,126,193,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(43,126,193,.06) 1px,transparent 1px);
            background-size:26px 26px;
        }
        .inline-svg{display:inline-flex;vertical-align:-3px;width:15px;height:15px;margin-left:2px}
        .arrow-link{
            display:inline-flex;
            align-items:center;
            gap:6px;
            color:var(--primary);
            font-weight:700;
            font-size:14px;
            transition:color .2s;
        }
        .arrow-link:hover{color:var(--primary-dark)}
        .cover-badge{
            position:absolute;
            top:14px;left:14px;
            background:rgba(16,42,67,.82);
            color:#fff;
            font-size:11px;
            padding:4px 9px;
            border-radius:999px;
            backdrop-filter:blur(4px);
        }
        .overlay-title{
            position:absolute;
            bottom:14px;
            left:14px;
            right:14px;
            color:#fff;
            font-weight:800;
            text-shadow:0 2px 10px rgba(0,0,0,.3);
            line-height:1.35;
        }
        .photo-card{
            position:relative;
            border-radius:14px;
            overflow:hidden;
        }

/* roulang page: category3 */
:root{
  --primary:#2B7EC1;
  --primary-dark:#1A557F;
  --primary-soft:#EAF3FA;
  --accent:#E97C3F;
  --accent-soft:#FDF1E8;
  --bg:#F6F9FC;
  --panel:#EEF3F8;
  --card:#FFFFFF;
  --text:#102A43;
  --body:#334E68;
  --muted:#627D98;
  --disabled:#9FB3C8;
  --line:#D9E2EC;
  --radius:14px;
  --radius-sm:8px;
  --shadow-sm:0 1px 3px rgba(16,24,40,.06), 0 1px 2px rgba(16,24,40,.04);
  --shadow-lg:0 12px 28px -6px rgba(16,37,60,.14), 0 2px 8px rgba(16,37,60,.06);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--body);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font-family:inherit;font-size:inherit}
img{display:block;max-width:100%}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px}
::selection{background:var(--primary-soft);color:var(--text)}

/* ===== container ===== */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 28px}

/* ===== section head ===== */
.section{padding:88px 0}
.section+.section{padding-top:0}
.section-head{max-width:760px;margin-bottom:44px}
.kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--primary);background:var(--primary-soft);border:1px solid #D3E6F5;padding:6px 14px;border-radius:999px;margin-bottom:16px}
.kicker::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.section-head h2{font-size:30px;line-height:1.25;font-weight:800;color:var(--text);letter-spacing:-.02em;margin-bottom:14px}
.section-head p{color:var(--muted);font-size:16px;max-width:680px}

/* ===== buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border:0;cursor:pointer;font-weight:600;font-size:15px;line-height:1;padding:15px 28px;border-radius:10px;transition:all .2s ease;min-height:48px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 14px rgba(43,126,193,.22)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 8px 20px rgba(43,126,193,.28)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 4px 14px rgba(233,124,63,.28)}
.btn-accent:hover{background:#d9662a;transform:translateY(-2px);box-shadow:0 8px 22px rgba(233,124,63,.32)}
.btn-light{background:#fff;color:var(--text);border:1px solid var(--line)}
.btn-light:hover{background:var(--primary-soft);border-color:var(--primary)}
.btn-ghost{border:1px solid #D3E6F5;background:transparent;color:var(--primary)}
.btn-ghost:hover{background:var(--primary-soft)}
.btn:active{transform:translateY(1px)}

/* ===== site nav ===== */
.site-nav{position:fixed;top:0;left:0;z-index:200;display:flex;flex-direction:column;align-items:center;width:96px;height:100vh;background:#fff;border-right:1px solid var(--line);padding:22px 10px}
.brand-logo{display:flex;flex-direction:column;align-items:center;gap:8px;width:100%}
.logo-mark{width:44px;height:44px;border-radius:14px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.logo-mark svg{width:27px;height:27px}
.logo-text{font-weight:800;letter-spacing:.02em;font-size:13px;color:var(--text);white-space:nowrap;text-align:center}
.desktop-nav-wrap{width:100%;flex:1;margin-top:36px}
.desktop-nav-list{list-style:none;display:flex;flex-direction:column;gap:8px;width:100%;padding:0}
.nav-item{width:100%}
.nav-link{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;width:100%;min-height:62px;border-radius:12px;color:var(--muted);font-size:12px;line-height:1.2;transition:background .2s,color .2s}
.nav-link svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.nav-link:hover{background:var(--primary-soft);color:var(--primary)}
.nav-link.active{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(43,126,193,.25)}
.nav-foot{margin-top:auto;display:flex;flex-direction:column;align-items:center;gap:2px;color:var(--disabled);font-size:9px;letter-spacing:.16em;font-weight:700;line-height:1.3;padding-bottom:6px}
.menu-toggle{display:none;width:42px;height:42px;border:none;background:transparent;border-radius:10px;cursor:pointer;color:var(--text);align-items:center;justify-content:center}
.menu-toggle svg{width:24px;height:24px;stroke:currentColor;stroke-width:2;fill:none;stroke-linecap:round}

/* ===== mobile navigation drawer ===== */
.mobile-nav{display:none;position:fixed;inset:0;z-index:300}
.mobile-backdrop{position:absolute;inset:0;background:rgba(10,22,36,.48);opacity:0;pointer-events:none;transition:opacity .3s ease}
.mobile-panel{position:absolute;top:0;right:0;height:100%;width:min(320px,84vw);background:#fff;box-shadow:var(--shadow-lg);padding:28px 24px;transform:translateX(100%);transition:transform .32s ease;display:flex;flex-direction:column;overflow-y:auto}
.mobile-panel .brand-logo{flex-direction:row;justify-content:flex-start;gap:10px;padding-bottom:22px;border-bottom:1px solid var(--line);margin-bottom:22px}
.mobile-panel .logo-mark{width:38px;height:38px;border-radius:11px}
.mobile-panel .logo-text{font-size:17px;white-space:normal}
.mobile-panel .desktop-nav-list{display:flex;flex-direction:column;gap:4px}
.mobile-panel .nav-link{flex-direction:row;justify-content:flex-start;gap:12px;min-height:50px;font-size:15px;padding:0 12px;border-radius:10px}
.mobile-panel .nav-link svg{width:20px;height:20px}
.mobile-panel-meta{margin-top:auto;border-top:1px solid var(--line);padding-top:20px;color:var(--muted);font-size:13px}
body.mobile-open .mobile-backdrop{opacity:1;pointer-events:auto}
body.mobile-open .mobile-panel{transform:translateX(0)}

/* ===== content shell ===== */
.site-main,.site-footer{margin-left:96px}

/* ===== category hero ===== */
.cat-hero{position:relative;padding:104px 0 78px;background:#f7fafc;border-bottom:1px solid var(--line);overflow:hidden}
.cat-hero::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;opacity:.22;filter:saturate(.75)}
.cat-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,#fff 15%,rgba(247,250,252,.86) 45%,rgba(247,250,252,.35) 80%,rgba(247,250,252,.06))}
.cat-hero .container{position:relative;z-index:2}
.cat-hero-badge{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);color:var(--primary);padding:7px 16px;border-radius:999px;font-size:13px;font-weight:700;letter-spacing:.06em;margin-bottom:20px}
.cat-hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--accent)}
.cat-hero h1{font-size:46px;line-height:1.18;font-weight:800;color:var(--text);letter-spacing:-.03em;margin-bottom:18px;max-width:680px}
.cat-hero h1 span{color:var(--primary)}
.cat-hero p{font-size:17px;color:var(--body);max-width:620px;margin-bottom:30px}
.cat-hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.cat-hero-note{margin-top:34px;display:flex;align-items:center;gap:10px;color:var(--muted);font-size:14px;border-top:1px dashed #C9D8E5;padding-top:20px;max-width:620px}
.cat-hero-note svg{width:18px;height:18px;color:var(--primary);flex-shrink:0}

/* ===== support overview cards ===== */
.overview-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:48px}
.overview-card{background:var(--card);border-radius:var(--radius);padding:26px;border:1px solid var(--line);box-shadow:var(--shadow-sm);transition:all .2s ease}
.overview-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#C9DDF0}
.overview-icon{width:48px;height:48px;border-radius:13px;display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.overview-icon svg{width:24px;height:24px;stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round}
.overview-card:nth-child(1) .overview-icon{background:var(--primary-soft);color:var(--primary)}
.overview-card:nth-child(2) .overview-icon{background:var(--accent-soft);color:var(--accent)}
.overview-card:nth-child(3) .overview-icon{background:#E8F5F1;color:#1E8E78}
.overview-card h3{font-size:18px;font-weight:700;color:var(--text);margin-bottom:10px}
.overview-card p{font-size:14px;color:var(--muted);line-height:1.8}

/* ===== process ===== */
.process-section{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:40px;position:relative}
.process-step{position:relative;padding:0 22px}
.process-step::before{content:"";position:absolute;top:26px;left:-10px;right:60%;height:1px;background:#E3EBF3;z-index:0}
.process-step:not(:first-child)::before{content:"";position:absolute;top:26px;left:-10px;width:80px;height:1px;background:#E3EBF3;z-index:0}
.process-num{width:52px;height:52px;border-radius:14px;background:var(--primary);color:#fff;font-size:18px;font-weight:800;display:flex;align-items:center;justify-content:center;position:relative;z-index:1;box-shadow:0 6px 16px rgba(43,126,193,.24);margin-bottom:18px}
.process-step:nth-child(2) .process-num{background:var(--primary-dark)}
.process-step:nth-child(3) .process-num{background:var(--accent)}
.process-step:nth-child(4) .process-num{background:#1E8E78}
.process-step h3{font-size:17px;font-weight:700;color:var(--text);margin-bottom:10px}
.process-step p{font-size:14px;color:var(--muted);line-height:1.8}

/* ===== scope cards ===== */
.scope-wrap{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:40px}
.scope-card{display:grid;grid-template-columns:150px 1fr;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:all .2s ease}
.scope-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px)}
.scope-visual{position:relative;min-height:180px;background:var(--panel)}
.scope-visual img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.scope-badge{position:absolute;left:12px;top:12px;background:rgba(16,42,67,.82);color:#fff;font-size:11px;padding:4px 10px;border-radius:999px;backdrop-filter:blur(4px)}
.scope-content{padding:24px}
.scope-content h3{font-size:18px;font-weight:700;color:var(--text);margin-bottom:12px;line-height:1.4}
.scope-content p{font-size:14px;color:var(--body);line-height:1.8;margin-bottom:16px}
.scope-tags{display:flex;flex-wrap:wrap;gap:8px}
.scope-tags span{display:inline-block;font-size:12px;background:var(--primary-soft);color:var(--primary-dark);padding:4px 10px;border-radius:6px;font-weight:500}

/* ===== self check dark pane ===== */
.check-pane{position:relative;overflow:hidden;background:#102A43;border-radius:20px;padding:54px 50px;color:#EAF0F6;margin-top:20px}
.check-pane::after{content:"";position:absolute;width:380px;height:380px;right:-120px;top:-140px;border-radius:50%;background:rgba(43,126,193,.35);filter:blur(60px)}
.check-pane::before{content:"";position:absolute;width:260px;height:260px;bottom:-100px;left:-80px;border-radius:50%;background:rgba(233,124,63,.22);filter:blur(60px)}
.check-inner{position:relative;z-index:2}
.check-title{display:flex;align-items:center;gap:12px;font-size:24px;font-weight:800;color:#fff;margin-bottom:12px}
.check-title .pulse{width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 0 rgba(233,124,63,.5);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(233,124,63,.4)}70%{box-shadow:0 0 0 12px rgba(233,124,63,0)}100%{box-shadow:0 0 0 0 rgba(233,124,63,0)}}
.check-desc{color:#B4C7DB;max-width:680px;font-size:15px;margin-bottom:26px}
.check-list{display:grid;grid-template-columns:1fr 1fr;gap:14px 30px;list-style:none}
.check-list li{position:relative;padding-left:30px;font-size:14px;line-height:1.8;color:#DCE7F1}
.check-list li::before{content:"";position:absolute;left:0;top:6px;width:18px;height:18px;border-radius:6px;background:rgba(43,126,193,.34);border:1px solid rgba(111,176,218,.5)}
.check-list li::after{content:"";position:absolute;left:5px;top:11px;width:7px;height:4px;border-left:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(-45deg)}
.check-more{margin-top:28px;font-size:13px;color:#8FA9BE;padding-top:18px;border-top:1px solid #2B4258}

/* ===== faq ===== */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow-sm);transition:border-color .2s,box-shadow .2s}
.faq-item:hover{border-color:#CFE1F0}
.faq-question{width:100%;text-align:left;display:flex;justify-content:space-between;align-items:flex-start;gap:20px;padding:22px 26px;background:none;border:0;cursor:pointer;font-size:16px;font-weight:600;color:var(--text);line-height:1.5;transition:color .2s}
.faq-question:hover{color:var(--primary)}
.faq-question .faq-icon{flex-shrink:0;width:28px;height:28px;border-radius:50%;border:1px solid var(--line);background:var(--bg);display:flex;align-items:center;justify-content:center;transition:all .25s ease;color:var(--muted)}
.faq-item.open .faq-icon{background:var(--primary);border-color:var(--primary);color:#fff;transform:rotate(45deg)}
.faq-icon svg{width:14px;height:14px;stroke:currentColor;stroke-width:2;fill:none}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-answer-inner{padding:0 26px 24px;font-size:15px;color:var(--body);line-height:1.85}
.faq-answer-inner a{color:var(--primary);border-bottom:1px solid #CBE1F2;transition:color .2s}
.faq-answer-inner a:hover{color:var(--primary-dark)}

/* ===== contact section ===== */
.contact-section{background:#fff;border-top:1px solid var(--line)}
.contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:stretch;margin-top:40px}
.contact-form-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:36px;box-shadow:var(--shadow-sm)}
.contact-form-card h3{font-size:22px;font-weight:800;color:var(--text);margin-bottom:8px}
.contact-form-card .form-desc{font-size:14px;color:var(--muted);margin-bottom:24px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-field{display:flex;flex-direction:column;gap:7px;margin-bottom:14px}
.form-field label{font-size:14px;font-weight:600;color:var(--text)}
.form-field input,.form-field textarea{border:1px solid #CFDBE6;background:#FBFCFE;border-radius:10px;padding:11px 14px;min-height:44px;transition:border-color .2s,box-shadow .2s;color:var(--text);font-size:15px;line-height:1.5}
.form-field input:focus,.form-field textarea:focus{outline:0;border-color:var(--primary);box-shadow:0 0 0 3px rgba(43,126,193,.14);background:#fff}
.form-field textarea{min-height:120px;resize:vertical}
.form-submit{margin-top:10px}
.form-notice{font-size:12px;color:var(--disabled);line-height:1.7;margin-top:12px}
.form-result{display:none;background:var(--primary-soft);border:1px solid #CBE1F2;color:var(--primary-dark);font-size:14px;padding:13px 16px;border-radius:10px;margin-top:16px;align-items:flex-start;gap:10px}
.form-result.show{display:flex}
.form-result svg{width:18px;height:18px;flex-shrink:0;margin-top:2px}
.contact-side{display:flex;flex-direction:column;gap:18px}
.contact-card{background:var(--bg);border:1px solid var(--line);border-radius:16px;padding:24px;display:flex;gap:18px;transition:all .2s ease}
.contact-card:hover{border-color:#D8E7F3;box-shadow:var(--shadow-sm)}
.contact-card .icon{flex-shrink:0;width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center}
.contact-card .icon svg{width:21px;height:21px;stroke:currentColor;stroke-width:1.8;fill:none}
.contact-card:nth-child(1) .icon{background:var(--primary-soft);color:var(--primary)}
.contact-card:nth-child(2) .icon{background:var(--accent-soft);color:var(--accent)}
.contact-card:nth-child(3) .icon{background:#E8F5F1;color:#1E8E78}
.contact-card h4{font-size:16px;font-weight:700;color:var(--text);margin-bottom:6px}
.contact-card p{font-size:14px;color:var(--muted);line-height:1.8}
.contact-dark-banner{border-radius:16px;background:#102A43;color:#DDECF8;padding:26px 28px;position:relative;overflow:hidden}
.contact-dark-banner h4{color:#fff;font-size:17px;font-weight:700;margin-bottom:8px;position:relative;z-index:2}
.contact-dark-banner p{font-size:14px;line-height:1.8;color:#BFD4E6;position:relative;z-index:2}
.contact-dark-banner::after{content:"";position:absolute;right:-36px;bottom:-48px;width:130px;height:130px;border-radius:50%;background:rgba(43,126,193,.3);filter:blur(24px)}

/* ===== footer ===== */
.site-footer{background:#102A43;color:#B9CDDF;border-top:1px solid #0D2132;padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.footer-brand .brand-logo{flex-direction:row;justify-content:flex-start;gap:10px;margin-bottom:16px}
.footer-brand .brand-logo .logo-mark{width:38px;height:38px;border-radius:11px}
.footer-brand .brand-logo .logo-text{font-size:17px;color:#fff}
.footer-brand p{font-size:14px;line-height:1.9;color:#9DB4C8;max-width:320px}
.footer-col h3{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:10px}
.footer-col li a{font-size:14px;color:#AFC6D9;transition:color .2s,padding-left .2s}
.footer-col li a:hover{color:#fff;padding-left:4px}
.footer-note{border-top:1px solid #244057;padding:22px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
.footer-note p{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:#8CA5BA}
.footer-note a:hover{color:#fff}

/* ===== breakpoints ===== */
@media(max-width:1280px){
  .scope-card{grid-template-columns:120px 1fr}
}
@media(max-width:1023.98px){
  .site-nav{width:100%;height:64px;flex-direction:row;align-items:center;justify-content:space-between;padding:0 18px;border-bottom:1px solid var(--line);box-shadow:0 2px 10px rgba(16,24,40,.04)}
  .brand-logo{flex-direction:row;width:auto;justify-content:flex-start;gap:9px}
  .logo-mark{width:36px;height:36px;border-radius:10px}
  .logo-mark svg{width:22px;height:22px}
  .logo-text{font-size:15px;white-space:nowrap}
  .desktop-nav-wrap,.nav-foot{display:none}
  .menu-toggle{display:flex}
  .mobile-nav{display:block}
  .site-main,.site-footer{margin-left:0}
  .site-main{padding-top:64px}
  body.scrolled .site-nav{box-shadow:0 6px 18px rgba(16,37,60,.07)}
  .cat-hero{padding:64px 0 48px}
  .cat-hero h1{font-size:34px}
  .container{padding-left:22px;padding-right:22px}
  .overview-grid{grid-template-columns:1fr 1fr}
  .overview-card:last-child{grid-column:span 2}
  .process-grid{grid-template-columns:1fr 1fr;gap:28px 14px}
  .process-step::before{display:none}
  .check-pane{padding:32px 24px}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:767.98px){
  .section{padding:64px 0}
  .section-head h2{font-size:25px}
  .cat-hero{padding:46px 0 42px}
  .cat-hero h1{font-size:28px}
  .cat-hero p{font-size:15px}
  .overview-grid{grid-template-columns:1fr}
  .overview-card:last-child{grid-column:auto}
  .process-grid{grid-template-columns:1fr}
  .scope-wrap{grid-template-columns:1fr}
  .scope-card{grid-template-columns:1fr}
  .scope-visual{min-height:170px}
  .check-title{font-size:20px}
  .check-list{grid-template-columns:1fr}
  .contact-form-card{padding:24px 20px}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-note{flex-direction:column}
  .cat-hero-actions{flex-direction:column;align-items:stretch}
  .btn{width:100%;justify-content:center}
}
@media(max-width:480px){
  .container{padding-left:16px;padding-right:16px}
  .cat-hero-actions .btn{font-size:14px;padding:14px 16px}
  .process-step{padding:0}
  .code-tag{font-size:12px;overflow-wrap:break-word}
  .check-pane{border-radius:14px;padding:26px 20px}
}
@media(min-width:1024px){
  .mobile-nav{display:none!important}
}