/* roulang page: index */
:root {
  --page-bg: #F6F5F0;
  --card-bg: #FFFFFF;
  --nav-bg: #112E26;
  --nav-text: #DDE7DF;
  --primary: #146B5C;
  --primary-deep: #0E4D43;
  --primary-dark: #0A3D35;
  --primary-light: #D9EBE4;
  --accent: #C9822C;
  --accent-light: #F3E3CC;
  --text-main: #212725;
  --text-sub: #5F6E69;
  --text-soft: #7C8A85;
  --line: #E3E1D6;
  --line-dark: #CAC7BA;
  --success: #2E7D63;
  --danger: #B85C38;
  --warning: #B47A2A;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --radius-pill: 999px;
  --shadow-low: 0 1px 2px rgba(15,35,28,.06), 0 4px 14px rgba(15,35,28,.05);
  --shadow-hover: 0 6px 18px rgba(15,35,28,.09), 0 10px 28px rgba(15,35,28,.06);
  --font-cn: "PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  --font-serif-num: Georgia,"Times New Roman",serif;
  --header-h: 68px;
  --side-w: 252px;
}
*, *::before, *::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.78;
  color: var(--text-main);
  background: var(--page-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body.menu-open {
  overflow: hidden;
}
img {
  max-width: 100%;
  display: block;
  height: auto;
}
a {
  color: inherit;
  text-decoration: none;
}
button, input, select, textarea {
  font: inherit;
  color: inherit;
}
button {
  border: 0;
  cursor: pointer;
  background: none;
}
svg {
  width: 1em;
  height: 1em;
  fill: currentColor;
  display: block;
}
::selection {
  background: var(--primary-light);
  color: var(--primary-deep);
}
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}
[id] {
  scroll-margin-top: 20px;
}

.mobile-top {
  display: none;
}
.scrim {
  display: none;
}

/* 侧边导航 */
.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--side-w);
  background: var(--nav-bg);
  color: var(--nav-text);
  display: flex;
  flex-direction: column;
  padding: 30px 18px 22px;
  z-index: 60;
  overflow-y: auto;
  transition: transform .32s ease, width .28s ease;
}
.brand-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 2px 8px 26px;
  border-bottom: 1px solid rgba(221,231,223,.12);
  margin-bottom: 22px;
}
.brand-symbol {
  flex: 0 0 auto;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: var(--accent);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .5px;
  box-shadow: 0 10px 18px rgba(201,130,44,.22);
}
.brand-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.3;
}
.brand-name {
  color: #fff;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: .02em;
  white-space: nowrap;
}
.brand-url {
  margin-top: 4px;
  color: #94A99E;
  font-size: 12px;
  letter-spacing: .03em;
  word-break: break-all;
}
.side-nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.side-nav .nav-label {
  font-size: 11px;
  color: #91A79C;
  text-transform: uppercase;
  letter-spacing: .1em;
  padding: 6px 12px 10px;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 48px;
  padding: 10px 14px;
  border-radius: 12px;
  color: var(--nav-text);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.5;
  transition: background .22s ease, color .22s ease, transform .2s ease;
  position: relative;
}
.nav-link .nav-ico {
  width: 21px;
  height: 21px;
  flex: 0 0 auto;
  opacity: .8;
}
.nav-link:hover {
  background: rgba(255,255,255,.08);
  color: #fff;
}
.nav-link.active {
  background: rgba(217,235,228,.14);
  color: #fff;
  font-weight: 600;
}
.nav-link.active::before {
  content: "";
  position: absolute;
  left: -18px;
  top: 14px;
  bottom: 14px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--accent);
}
.nav-link.active .nav-ico {
  color: var(--accent);
  opacity: 1;
}
.side-cta {
  margin: 28px 0 14px;
}
.side-cta a {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 16px;
  border-radius: var(--radius-pill);
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  transition: background .22s ease, transform .2s ease, box-shadow .22s ease;
}
.side-cta a:hover {
  background: #B67425;
  box-shadow: 0 8px 16px rgba(201,130,44,.24);
  transform: translateY(-1px);
}
.side-cta a:active {
  transform: translateY(1px);
}
.side-footer {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid rgba(221,231,223,.12);
  font-size: 12px;
  line-height: 1.6;
  color: #82998D;
}
.side-footer strong {
  color: #C6D5CC;
  font-weight: 600;
}
.menu-close {
  display: none;
}

/* 主体 */
.site-layout {
  min-height: 100vh;
  margin-left: var(--side-w);
  display: flex;
  flex-direction: column;
}
.content {
  flex: 1;
  width: 100%;
}
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding-left: 32px;
  padding-right: 32px;
}
.main-sections > section {
  padding: 80px 0;
  border-bottom: 1px solid var(--line);
}
.main-sections > section:first-child {
  padding-top: 0;
}

/* 区块头 */
.sec-head {
  max-width: 820px;
  margin-bottom: 42px;
}
.sec-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .02em;
  margin-bottom: 14px;
}
.sec-kicker::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.sec-head h2 {
  font-size: clamp(28px, 3vw, 36px);
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: -.01em;
  margin: 0;
  color: var(--primary-deep);
}
.sec-head h2 .thin {
  font-weight: 400;
  color: var(--text-sub);
}
.sec-head p {
  font-size: 17px;
  color: var(--text-sub);
  margin: 16px 0 0;
  max-width: 720px;
}

/* Hero */
.hero {
  padding-top: 86px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 78% 16%, rgba(201,130,44,.08), transparent 26%),
    linear-gradient(135deg, rgba(217,235,228,.5), rgba(246,245,240,0) 52%);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 60px;
  align-items: center;
}
.hero-copy {
  padding: 30px 0;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--primary-light);
  color: var(--primary-deep);
  font-size: 13px;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: var(--radius-pill);
  margin: 0 0 24px;
}
.eyebrow .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
}
.hero h1 {
  font-size: clamp(36px, 4.1vw, 52px);
  line-height: 1.25;
  letter-spacing: -.02em;
  font-weight: 800;
  color: var(--primary-deep);
  margin: 0 0 26px;
}
.hero-lead {
  font-size: 17px;
  line-height: 1.9;
  color: var(--text-sub);
  max-width: 580px;
  margin: 0 0 34px;
}
.hero-lead strong {
  color: var(--text-main);
  font-weight: 600;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 48px;
  padding: 13px 28px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  transition: background .2s ease, color .2s ease, transform .18s ease, box-shadow .2s ease, border-color .2s ease;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-deep);
  box-shadow: 0 6px 16px rgba(20,107,92,.20);
  transform: translateY(-1px);
}
.btn-primary:active {
  transform: translateY(1px);
}
.btn-primary:focus-visible {
  outline: 2px solid var(--accent);
}
.btn-secondary {
  background: transparent;
  border: 1px solid var(--primary);
  color: var(--primary);
}
.btn-secondary:hover {
  background: var(--primary-light);
}
.btn-secondary:active {
  transform: translateY(1px);
}
.btn-arrow::after {
  content: "→";
  font-weight: 400;
  transition: margin .2s ease;
}
.btn:hover .btn-arrow::after,
a:hover>.btn-arrow::after {
  margin-left: 3px;
}
.hero-art {
  position: relative;
}
.hero-art .img-box {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
  background: #e7ece7;
}
.hero-art img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.hero-art .img-stamp {
  position: absolute;
  right: 16px;
  top: 16px;
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,.85);
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  color: var(--primary-deep);
  letter-spacing: .03em;
  box-shadow: var(--shadow-low);
}
.hero-art::after {
  content: "";
  position: absolute;
  right: -16px;
  bottom: -18px;
  width: 70%;
  height: 70%;
  border-radius: 24px;
  border: 1px dashed var(--line-dark);
  z-index: -1;
}

/* 栏目细读 */
.feature-section {
  background: var(--page-bg);
}
.feature-layout {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: clamp(32px, 5vw, 74px);
  align-items: start;
}
.feature-intro {
  max-width: 420px;
  position: sticky;
  top: 36px;
}
.feature-intro .sec-kicker {
  margin-bottom: 14px;
}
.feature-intro h2 {
  font-size: clamp(27px, 2.7vw, 36px);
  color: var(--primary-deep);
  line-height: 1.34;
  margin: 0 0 20px;
}
.feature-intro p {
  color: var(--text-sub);
  font-size: 17px;
  line-height: 1.85;
  margin: 0;
}
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.feature-item {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 26px 28px;
  display: block;
  transition: border-color .2s ease, box-shadow .22s ease, transform .2s ease;
}
.feature-item:hover {
  border-color: #C2CBBE;
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.feature-index {
  display: inline-flex;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
  margin-bottom: 12px;
}
.feature-item h3 {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 9px;
  font-size: 21px;
  line-height: 1.4;
  color: var(--primary-deep);
  margin: 0 0 8px;
}
.feature-item h3 .tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary-deep);
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 999px;
  font-weight: 500;
  transform: translateY(-1px);
}
.feature-item p {
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.8;
  margin: 0 0 8px;
}
.feature-item .item-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
  margin-top: 6px;
  padding: 8px 0;
  min-height: 38px;
}
.feature-item .item-link::after {
  content: "→";
  transition: margin .2s;
}
.feature-item .item-link:hover::after {
  margin-left: 4px;
}

/* 数据条 */
.metrics {
  background: var(--nav-bg);
  color: #E8F0EA;
  border-bottom: 0;
}
.metrics .sec-head h2 {
  color: #fff;
}
.metrics .sec-head p {
  color: #B7C9C0;
}
.metrics .container {
  position: relative;
}
.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.metric-box {
  border: 1px solid rgba(221,231,223,.12);
  border-radius: var(--radius-md);
  background: rgba(255,255,255,.03);
  padding: 28px 22px 24px;
  transition: background .2s ease, transform .2s ease;
}
.metric-box:hover {
  background: rgba(255,255,255,.06);
  transform: translateY(-3px);
}
.metric-num {
  font-family: var(--font-serif-num);
  font-variant-numeric: tabular-nums;
  font-size: 52px;
  line-height: 1;
  letter-spacing: -0.03em;
  color: #fff;
  font-weight: 600;
  display: flex;
  align-items: baseline;
  gap: 4px;
}
.metric-num .bonus {
  font-size: 18px;
  color: var(--accent);
  font-weight: 700;
}
.metric-label {
  margin-top: 13px;
  color: #C7D9CF;
  font-weight: 600;
  font-size: 15px;
}
.metric-desc {
  color: #8AA195;
  font-size: 13px;
  line-height: 1.7;
  margin-top: 5px;
}

/* 案例 */
.case-section {
  background: linear-gradient(180deg, #FFFFFF 0%, #F6F5F0 100%);
}
.case-wrap {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.case-card-main {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 0;
  box-shadow: var(--shadow-low);
}
.case-card-main + .case-card-main .case-img {
  order: 2;
}
.case-card-main .case-img {
  position: relative;
  min-height: 330px;
  overflow: hidden;
  background: #E5EBE5;
}
.case-card-main .case-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(17,46,38,.0), rgba(17,46,38,.08));
}
.case-card-main .case-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
  aspect-ratio: auto;
}
.case-card-main .case-body {
  padding: 40px 42px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--card-bg);
}
.case-card-main .case-tag {
  background: var(--accent-light);
  color: #8A5A22;
  font-size: 12px;
  font-weight: 600;
  display: inline-block;
  width: max-content;
  border-radius: var(--radius-pill);
  padding: 6px 12px;
  margin-bottom: 19px;
}
.case-body h3 {
  font-size: clamp(22px, 2vw, 28px);
  line-height: 1.4;
  color: var(--primary-deep);
  margin: 0 0 14px;
  font-weight: 700;
}
.case-body p {
  color: var(--text-sub);
  font-size: 16px;
  line-height: 1.85;
  margin: 0 0 20px;
}
.case-body a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 40px;
  font-weight: 600;
  color: var(--primary);
  width: max-content;
}
.case-body a::after {
  content: "→";
}
.case-body a:hover {
  color: var(--primary-deep);
}
.case-duo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.case-card {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-low);
  transition: box-shadow .2s ease, transform .2s ease;
}
.case-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.case-card .topline {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}
.case-card .case-no {
  font-family: var(--font-serif-num);
  color: var(--accent);
  font-size: 28px;
  line-height: 1;
}
.case-card .icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--primary-light);
  color: var(--primary);
  display: grid;
  place-items: center;
  font-size: 18px;
}
.case-card h3 {
  font-size: 20px;
  color: var(--primary-deep);
  line-height: 1.5;
  margin: 20px 0 10px;
}
.case-card p {
  font-size: 15px;
  color: var(--text-sub);
  line-height: 1.8;
  margin: 0;
}
.case-card .case-result {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 8px;
}
.case-card .case-result::before {
  content: "✓";
  font-weight: 700;
}

/* CMS 最新信息 */
.news-section {
  background: var(--page-bg);
}
.news-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
.news-card {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 26px 28px;
  display: flex;
  flex-direction: column;
  transition: box-shadow .2s ease, transform .2s ease;
}
.news-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}
.news-cat {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary-deep);
  font-size: 12px;
  padding: 4px 11px;
  border-radius: 99px;
  font-weight: 600;
  white-space: nowrap;
}
.news-date {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--text-soft);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}
.news-date::before {
  content: "";
  width: 5px;
  height: 5px;
  background: var(--accent);
  border-radius: 50%;
}
.news-title {
  font-size: 20px;
  line-height: 1.55;
  color: var(--primary-deep);
  font-weight: 700;
  margin: 0 0 10px;
}
.news-title a {
  background-image: linear-gradient(transparent 96%, var(--primary-light) 96%);
  background-size: 0 100%;
  background-repeat: no-repeat;
  transition: background-size .2s ease;
}
.news-title a:hover {
  background-size: 100% 100%;
}
.news-summary {
  font-size: 15px;
  color: var(--text-sub);
  line-height: 1.8;
  margin: 0 0 17px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  color: var(--primary);
  font-weight: 600;
  min-height: 38px;
  margin-top: auto;
}
.news-link::after {
  content: "→";
}
.cms-empty {
  border: 1px dashed var(--line-dark);
  background: rgba(255,255,255,.6);
  min-height: 220px;
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--text-soft);
  gap: 4px;
  padding: 24px;
}
.cms-empty svg {
  width: 40px;
  height: 40px;
  opacity: .7;
  margin-bottom: 8px;
}
.cms-empty strong {
  font-size: 17px;
  color: var(--text-sub);
  font-weight: 600;
}
.cms-empty span {
  font-size: 14px;
}
.cms-empty .reverse-link {
  margin-top: 8px;
  color: var(--primary);
  font-size: 13px;
}

/* 使用流程 */
.process-section {
  background: #FFFFFF;
}
.process-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 20px 22px;
}
.process-side {
  grid-column: span 4;
}
.process-steps {
  grid-column: span 8;
}
.process-side .side-card {
  background: var(--primary-light);
  border-radius: var(--radius-md);
  padding: 28px;
  position: sticky;
  top: 24px;
}
.process-side .side-card h3 {
  margin-top: 0;
}
.process-steps .step {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 22px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 30px;
  margin-bottom: 30px;
}
.process-steps .step:last-child {
  border-bottom: 0;
  padding-bottom: 0;
  margin-bottom: 0;
}
.step .step-num {
  font-family: var(--font-serif-num);
  font-variant-numeric: tabular-nums;
  font-size: 18px;
  color: #fff;
  background: var(--primary);
  width: 62px;
  height: 62px;
  border-radius: 50%;
  display: Grid;
  place-items: center;
  box-shadow: 0 8px 18px rgba(20,107,92,.2);
  line-height: 1;
  font-weight: 600;
}
.step .step-head {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}
.step .step-head h3 {
  font-size: 22px;
  color: var(--primary-deep);
  margin: 0;
  font-weight: 700;
}
.step .step-head .badge {
  background: var(--primary-light);
  color: var(--primary-deep);
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 99px;
}
.step p {
  margin: 8px 0 12px;
  color: var(--text-sub);
  font-size: 16px;
  line-height: 1.85;
}
.step .step-point {
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
  display: inline-flex;
  gap: 7px;
  align-items: center;
  min-height: 44px;
}
.step .step-point::before {
  content: "·";
  font-size: 24px;
  color: var(--accent);
}
.process-cta {
  margin-top: 40px;
  background: var(--page-bg);
  border-radius: var(--radius-lg);
  padding: 33px 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  border: 1px solid var(--line);
}
.process-cta p {
  max-width: 640px;
  margin: 0;
  font-size: 17px;
  color: var(--text-sub);
}
.process-cta .btn {
  flex: 0 0 auto;
}

/* FAQ */
.faq-section {
  background: var(--page-bg);
}
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color .2s, box-shadow .2s;
}
.faq-item:hover {
  border-color: var(--line-dark);
}
.faq-item[open] {
  box-shadow: var(--shadow-low);
}
.faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  cursor: pointer;
  padding: 20px 26px;
  font-size: 16px;
  font-weight: 600;
  color: var(--primary-deep);
  min-height: 62px;
  line-height: 1.6;
  transition: background .2s ease;
  position: relative;
}
.faq-item summary::-webkit-details-marker,
.faq-item summary::marker {
  display: none;
  content: "";
}
.faq-item summary:hover {
  background: #FBFAF5;
}
.faq-item summary .faq-arrow {
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--line-dark);
  display: grid;
  place-items: center;
  color: var(--primary);
  transition: transform .24s ease, background .2s ease, color .2s ease;
  font-size: 18px;
}
.faq-item[open] summary .faq-arrow {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.faq-item .faq-content {
  padding: 0 28px 24px;
  max-width: 860px;
}
.faq-item .faq-content p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-sub);
  margin: 0 0 12px;
}
.faq-item .faq-content p:last-child {
  margin-bottom: 0;
}

/* 联系 */
.contact-section {
  background: #FFFFFF;
}
.contact-layout {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 58px;
  align-items: center;
}
.contact-copy .sec-head {
  margin-bottom: 18px;
}
.contact-copy p {
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-sub);
  max-width: 420px;
  margin: 0 0 24px;
}
.contact-points {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 24px;
}
.contact-point {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  font-size: 15px;
  line-height: 1.7;
}
.contact-point strong {
  display: block;
  color: var(--primary-deep);
  font-weight: 600;
}
.contact-point .cp-icon {
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: grid;
  place-items: center;
  font-size: 16px;
}
.contact-point .cp-text {
  color: var(--text-sub);
}
.contact-card {
  background: var(--page-bg);
  border-radius: var(--radius-lg);
  padding: 36px;
  border: 1px solid var(--line);
}
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-field label {
  display: block;
  color: var(--primary-deep);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 7px;
}
.form-field .req {
  color: var(--danger);
  margin-left: 4px;
}
.form-field input,
.form-field textarea {
  width: 100%;
  border: 1px solid #D5D7CD;
  border-radius: 10px;
  background: var(--card-bg);
  padding: 12px 15px;
  font-size: 15px;
  transition: border-color .2s ease, box-shadow .2s ease;
  outline: none;
}
.form-field input {
  min-height: 48px;
}
.form-field textarea {
  resize: vertical;
  min-height: 116px;
  line-height: 1.7;
}
.form-field input::placeholder,
.form-field textarea::placeholder {
  color: #A4ACA7;
}
.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(20,107,92,.13);
}
.form-field .hint {
  margin-top: 6px;
  font-size: 12px;
  color: var(--text-soft);
}
.form-field.is-error input,
.form-field.is-error textarea {
  border-color: var(--danger);
}
.error-msg {
  color: var(--danger);
  font-size: 13px;
  margin-top: 6px;
}
.form-action {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 6px;
}
.form-action .btn {
  min-width: 156px;
}
.form-state {
  font-size: 14px;
  color: var(--success);
  min-height: 20px;
  font-weight: 500;
}
.form-state.is-error {
  color: var(--danger);
}
.form-foot {
  border-top: 1px solid var(--line);
  margin-top: 22px;
  padding-top: 16px;
  font-size: 12px;
  color: var(--text-soft);
  line-height: 1.6;
  display: flex;
  gap: 8px;
  align-items: flex-start;
}
.form-foot svg {
  flex: 0 0 auto;
  width: 15px;
  height: 15px;
  transform: translateY(2px);
  opacity: .85;
}

/* CTA band */
.cta-section {
  background: var(--nav-bg);
}
.cta-band {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.cta-band-info h2 {
  color: #fff;
  font-size: clamp(24px, 2.6vw, 34px);
  font-weight: 700;
  margin: 0 0 8px;
  letter-spacing: -.01em;
}
.cta-band-info p {
  color: #B4C9BE;
  font-size: 16px;
  margin: 0;
  max-width: 660px;
  line-height: 1.8;
}
.cta-band-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.cta-band-actions .btn-primary {
  background: var(--accent);
  color: #fff;
}
.cta-band-actions .btn-primary:hover {
  background: #B67425;
}
.cta-band-actions .btn-light {
  background: transparent;
  border: 1px solid rgba(255,255,255,.8);
  color: #fff;
}
.cta-band-actions .btn-light:hover {
  background: rgba(255,255,255,.1);
}

/* Footer */
.site-footer {
  background: #0B201B;
  color: #ADC0B5;
}
.footer-container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 58px 32px 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 44px;
  padding-bottom: 46px;
  border-bottom: 1px solid rgba(221,231,223,.1);
}
.footer-brand .logo-b {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.footer-brand .logo-b .brand-symbol {
  width: 42px;
  height: 42px;
  font-size: 14px;
}
.footer-brand .logo-b .brand-name {
  font-size: 20px;
}
.footer-brand .brand-url-line {
  font-size: 13px;
  color: #6E897B;
  margin-bottom: 16px;
  display: block;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.85;
  margin: 0;
  max-width: 300px;
  color: #8EA89A;
}
.footer-title {
  font-family: var(--font-cn);
  color: #DCE9DF;
  font-weight: 700;
  font-size: 16px;
  margin: 0 0 16px;
  letter-spacing: .01em;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  color: #94AD9F;
  min-height: 26px;
  transition: color .2s ease;
  width: max-content;
}
.footer-links a::before {
  content: "";
  width: 5px;
  height: 1px;
  background: var(--accent);
  opacity: .6;
}
.footer-links a:hover {
  color: #E5EEE7;
}
.footer-note p {
  font-size: 13px;
  line-height: 1.8;
  color: #829A8D;
  margin: 0;
}
.footer-note .note-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid rgba(221,231,223,.18);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 12px;
  color: #C4D5CA;
}
.footer-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding-top: 24px;
  color: #708C7D;
  font-size: 13px;
  text-align: center;
}
.footer-bottom .copyright {
  color: #8FA79A;
}
.footer-bottom a {
  color: #C0D2C7;
}
.footer-bottom a:hover {
  color: #fff;
}

/* 多断点 */
@media (max-width: 1279px) {
  :root {
    --side-w: 96px;
  }
  .sidebar {
    padding-left: 10px;
    padding-right: 10px;
    align-items: center;
  }
  .brand-wrap {
    flex-direction: column;
    padding: 4px 2px 18px;
    width: 100%;
  }
  .brand-text {
    align-items: center;
  }
  .brand-name {
    font-size: 13px;
    letter-spacing: -.4px;
  }
  .brand-url {
    display: none;
  }
  .side-nav {
    width: 100%;
  }
  .nav-label {
    display: none;
  }
  .nav-link {
    justify-content: center;
    padding: 12px 4px;
  }
  .nav-link::before,
  .nav-link.active::before {
    left: -10px;
  }
  .nav-link .nav-ico {
    width: 22px;
    height: 22px;
    font-size: 21px;
  }
  .nav-link .nav-text,
  .nav-link .nav-label {
    display: none;
  }
  .side-cta a {
    width: 52px;
    height: 52px;
    padding: 0;
    border-radius: 16px;
  }
  .side-cta a .side-cta-text {
    display: none;
  }
  .side-cta a .side-cta-add {
    display: block;
    font-size: 24px;
    font-weight: 300;
  }
  .side-footer {
    display: none;
  }
  .site-layout {
    margin-left: var(--side-w);
  }
  .hero-grid {
    gap: 36px;
  }
  .container {
    padding-left: 24px;
    padding-right: 24px;
  }
}

@media (max-width: 960px) {
  .mobile-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-h);
    padding: 0 18px;
    background: var(--nav-bg);
    z-index: 100;
    border-bottom: 1px solid rgba(255,255,255,.08);
  }
  .mobile-top .m-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 44px;
  }
  .mobile-top .m-brand .brand-symbol {
    width: 36px;
    height: 36px;
    font-size: 13px;
    border-radius: 10px;
  }
  .mobile-top .m-brand .brand-name {
    font-size: 18px;
  }
  .mobile-hamburger {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    color: #fff;
    border-radius: 10px;
  }
  .mobile-hamburger:hover {
    background: rgba(255,255,255,.08);
  }
  .mobile-hamburger svg {
    width: 24px;
    height: 24px;
  }
  .scrim {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(7,20,16,.55);
    backdrop-filter: blur(3px);
    z-index: 80;
    opacity: 0;
    visibility: hidden;
    transition: opacity .3s ease;
  }
  .sidebar {
    width: min(324px, 86%);
    top: 0;
    left: 0;
    transform: translateX(-100%);
    padding: 24px 22px;
    align-items: stretch;
    visibility: hidden;
    opacity: 0;
    z-index: 120;
    transition: transform .3s ease, opacity .3s ease, visibility .3s;
  }
  body.menu-open .sidebar {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
  }
  body.menu-open .scrim {
    opacity: 1;
    visibility: visible;
  }
  .sidebar .brand-wrap {
    flex-direction: row;
    align-items: center;
    padding-bottom: 20px;
    margin-bottom: 18px;
  }
  .brand-name {
    font-size: 20px;
  }
  .brand-text .brand-url {
    display: none;
  }
  .nav-label {
    display: block;
    font-size: 11px;
    text-align: left;
    padding: 14px 12px 8px;
  }
  .nav-link {
    justify-content: flex-start;
    padding: 12px 14px;
    min-height: 48px;
  }
  .nav-link .nav-ico,
  .nav-link .nav-text,
  .nav-link .nav-label {
    display: initial;
  }
  .nav-link .nav-ico {
    font-size: 20px;
  }
  .nav-link .nav-text {
    display: inline-block;
  }
  .nav-link.active::before {
    left: -22px;
  }
  .side-cta a {
    width: 100%;
    height: auto;
    border-radius: var(--radius-pill);
    padding: 12px 16px;
  }
  .side-cta a .side-cta-text {
    display: inline-block;
  }
  .side-cta a .side-cta-add {
    display: none;
  }
  .side-footer {
    display: block;
    margin-top: 20px;
    font-size: 12px;
  }
  .menu-close {
    display: flex;
    position: absolute;
    right: 12px;
    top: 12px;
    width: 40px;
    height: 40px;
    color: #fff;
    border-radius: 50%;
    align-items: center;
    justify-content: center;
  }
  .site-layout {
    margin-left: 0;
    padding-top: var(--header-h);
  }
  .container {
    padding-left: 20px;
    padding-right: 20px;
  }
  .hero {
    padding-top: 36px;
  }
  .hero h1 {
    font-size: clamp(29px, 7vw, 40px);
  }
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .hero-copy {
    padding: 10px 0;
  }
  .hero-art img {
    aspect-ratio: 4 / 3;
  }
  .feature-layout {
    grid-template-columns: 1fr;
  }
  .feature-intro {
    position: static;
    max-width: 700px;
  }
  .feature-list {
    display: grid;
    grid-template-columns: 1fr;
  }
  .metric-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
  .metric-num {
    font-size: 46px;
  }
  .case-card-main {
    grid-template-columns: 1fr;
  }
  .case-card-main .case-img {
    min-height: 240px;
    order: 0 !important;
  }
  .case-card-main .case-body {
    padding: 30px 28px;
  }
  .case-card-main .case-img img {
    position: static;
    height: 240px;
  }
  .case-duo {
    grid-template-columns: 1fr;
  }
  .news-grid {
    grid-template-columns: 1fr;
  }
  .process-side,
  .process-grid,
  .process-side .side-card,
  .process-steps {
    grid-column: auto;
    position: static;
  }
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
  .cta-band {
    align-items: stretch;
  }
}

@media (max-width: 640px) {
  :root {
    --header-h: 64px;
  }
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .main-sections > section {
    padding: 64px 0;
  }
  .sec-head {
    margin-bottom: 30px;
  }
  .sec-head h2 {
    font-size: 27px;
    line-height: 1.4;
  }
  .hero-grid {
    gap: 20px;
  }
  .hero-actions,
  .hero-actions .btn {
    width: 100%;
  }
  .hero-lead {
    font-size: 16px;
  }
  .feature-item {
    padding: 22px;
  }
  .metric-grid {
    grid-template-columns: 1fr;
  }
  .metric-box {
    padding: 22px;
  }
  .process-grid {
    gap: 22px;
  }
  .process-steps .step {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .step .step-num {
    width: 48px;
    height: 48px;
    font-size: 15px;
  }
  .process-cta {
    padding: 25px 22px;
  }
  .contact-card,
  .cta-band {
    padding: 24px;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .faq-item summary {
    padding: 16px;
    font-size: 15px;
  }
  .faq-item .faq-content {
    padding: 0 16px 20px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-bottom {
    align-items: flex-start;
  }
}

/* roulang page: article */
:root {
            --color-page: #F6F5F0;
            --color-card: #FFFFFF;
            --color-nav: #112E26;
            --color-nav-text: #DDE7DF;
            --color-primary: #146B5C;
            --color-primary-deep: #0E4D43;
            --color-primary-light: #D9EBE4;
            --color-accent: #C9822C;
            --color-accent-light: #F3E3CC;
            --color-text: #212725;
            --color-text-secondary: #5F6E69;
            --color-border: #E3E1D6;
            --radius-large: 20px;
            --radius-card: 14px;
            --radius-btn: 999px;
            --radius-img: 10px;
            --shadow-low: 0 1px 2px rgba(15,35,28,.06), 0 4px 14px rgba(15,35,28,.05);
            --shadow-hover: 0 6px 18px rgba(15,35,28,.09), 0 10px 28px rgba(15,35,28,.06);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
            --spacing-section: 80px;
            --content-max: 1240px;
        }
        
        *,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        html {
            font-size: 16px;
            scroll-behavior: smooth;
        }
        
        body {
            font-family: var(--font-cn);
            background: var(--color-page);
            color: var(--color-text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        
        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color .2s ease;
        }
        
        a:hover {
            color: var(--color-primary-deep);
        }
        
        img {
            max-width: 100%;
            display: block;
        }
        
        ul,
        ol {
            list-style-position: inside;
        }
        
        .container {
            max-width: var(--content-max);
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }
        
        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: 252px;
            height: 100vh;
            background: var(--color-nav);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            padding: 28px 16px 24px;
            overflow-y: auto;
        }
        .nav-label{
            font-size: 12px;
            color: rgba(221,231,223,.55);
            letter-spacing: .12em;
            text-transform: uppercase;
            font-weight: 600;
            padding: 12px 14px 8px;
            border-bottom: 1px solid rgba(221,231,223,.15);
            margin-bottom: 12px;
        }
        .nav-link{
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 14px;
            color: var(--color-nav-text);
            font-size: 15px;
            line-height: 1.5;
            font-weight: 400;
            border-radius: 10px;
            margin-bottom: 4px;
            position: relative;
            transition: background .2s ease, color .2s ease;
            min-height: 44px;
        }
        .nav-link:hover{
            background: rgba(221,231,223,.08);
            color: #fff;
        }
        .nav-link.active{
            background: rgba(221,231,223,.14);
            color: #fff;
            font-weight: 600;
        }
        .nav-link.active::before{
            content: "";
            position: absolute;
            left: 0;
            top: 12%;
            height: 76%;
            width: 4px;
            background: var(--color-accent);
            border-radius: 0 4px 4px 0;
        }
        .nav-ico{
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            fill: currentColor;
        }
        .nav-text{
            display: block;
        }
        .nav-cta{
            margin-top: auto;
            display: block;
            text-align: center;
            background: var(--color-accent);
            color: #fff;
            font-weight: 600;
            border-radius: var(--radius-btn);
            padding: 12px 16px;
            font-size: 15px;
            transition: background .2s ease;
            min-height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            border: none;
            cursor: pointer;
        }
        .nav-cta:hover{
            background: #d18a31;
            color: #fff;
        }

        .brand-block{
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 6px 18px;
            border-bottom: 1px solid rgba(221,231,223,.12);
            margin-bottom: 18px;
        }
        .brand-logo-text{
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .brand-name-main{
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            letter-spacing: .05em;
            line-height: 1.2;
        }
        .brand-sub{
            font-size: 11px;
            color: rgba(221,231,223,.68);
            letter-spacing: .1em;
        }
        .brand-dot{
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--color-accent);
            flex-shrink: 0;
            display: inline-block;
            margin-right: 8px;
        }

        .side-content{
            margin-left: 252px;
            min-height: 100vh;
        }
        
        .site-nav-mobile{
            display: none;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 26px;
            font-size: 15px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            transition: background .2s ease, transform .15s ease, box-shadow .2s ease, border-color .2s ease;
            border: none;
            cursor: pointer;
            background: transparent;
            font-family: var(--font-cn);
            min-height: 48px;
        }
        .btn-primary{
            background: var(--color-primary);
            color: #fff;
        }
        .btn-primary:hover{
            background: var(--color-primary-deep);
            color: #fff;
            box-shadow: var(--shadow-hover);
        }
        .btn-primary:active{
            transform: translateY(1px) scale(.99);
        }
        .btn-primary:focus-visible{
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }
        .btn-secondary{
            border: 1px solid var(--color-primary);
            color: var(--color-primary);
            background: transparent;
        }
        .btn-secondary:hover{
            background: var(--color-primary-light);
            color: var(--color-primary-deep);
        }
        .btn-secondary:active{
            transform: translateY(1px);
        }
        .btn-secondary:focus-visible{
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }
        .btn:disabled{
            opacity: .55;
            cursor: not-allowed;
        }

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

        input[type="text"],
        input[type="tel"],
        input[type="email"],
        select,
        textarea {
            width: 100%;
            height: 48px;
            padding: 10px 14px;
            font-size: 15px;
            font-family: var(--font-cn);
            border: 1px solid #c9dccf;
            border-radius: 10px;
            background: var(--color-card);
            transition: border-color .2s ease;
            color: var(--color-text);
        }
        textarea {
            height: auto;
            min-height: 100px;
            resize: vertical;
        }
        input:focus,
        select:focus,
        textarea:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(20, 107, 92, .15);
        }
        .input-error {
            border-color: #E05A5A;
        }
        .input-error:focus {
            border-color: #E05A5A;
            box-shadow: 0 0 0 3px rgba(224, 90, 90, .12);
        }
        .error-message {
            color: #E05A5A;
            font-size: 13px;
            margin-top: 4px;
        }

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

        .badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-primary);
            background: var(--color-primary-light);
            padding: 4px 12px;
            border-radius: var(--radius-btn);
            letter-spacing: .02em;
            line-height: 1.5;
        }
        .badge-accent {
            background: var(--color-accent-light);
            color: var(--color-accent);
        }

        .read-more {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-weight: 500;
            font-size: 14px;
            color: var(--color-primary);
            margin-top: 12px;
        }
        .read-more:hover{
            color: var(--color-primary-deep);
        }
        
        .site-footer{
            background: #2f4a41;
            padding: 60px 32px 28px;
            color: var(--color-nav-text);
        }
        .footer-container{
            max-width: 1240px;
            margin: 0 auto;
        }
        .footer-grid{
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(221,231,223,.18);
        }
        .footer-brand p,
        .footer-note p {
            font-size: 13px;
            line-height: 1.75;
            margin-top: 10px;
            color: rgba(221,231,223,.65);
        }
        .logo-b{
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .brand-symbol{
            background: var(--color-accent);
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            color: #fff;
            font-weight: 800;
            font-size: 16px;
        }
        .brand-name{
            color: #fff;
            font-size: 18px;
            font-weight: 700;
        }
        .brand-url-line{
            display: inline-block;
            margin-top: 6px;
            font-size: 13px;
            color: rgba(221,231,223,.55);
            font-variant-numeric: tabular-nums;
        }
        .brand-url-line::before{
            content: "网址：";
            font-size: 13px;
            color: rgba(221,231,223,.55);
        }
        .footer-title{
            font-size: 14px;
            color: #fff;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: .05em;
        }
        .footer-links{
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a{
            color: var(--color-nav-text);
            font-size: 14px;
            opacity: .85;
        }
        .footer-links a:hover{
            color: #fff;
            opacity: 1;
        }
        .footer-note{
            font-size: 14px;
        }
        .note-chip{
            background: rgba(255,255,255,.08);
            padding: 4px 12px;
            border-radius: 30px;
            font-size: 12px;
            color: rgba(221,231,223,.8);
        }
        .footer-bottom{
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            padding-top: 20px;
        }
        .copyright{
            font-size: 13px;
            color: rgba(221,231,223,.8);
        }
        .footer-bottom span:last-child{
            font-size: 12px;
            color: rgba(221,231,223,.5);
        }

        @media (min-width: 961px) and (max-width: 1279px) {
            .side-nav{
                width: 80px;
                padding: 20px 10px 16px;
            }
            .nav-label{
                padding: 10px 0;
                text-align: center;
                font-size: 0;
            }
            .nav-label::first-letter{
                font-size: 15px;
            }
            .nav-text, .brand-logo-text, .brand-sub, .brand-name, .brand-sub{
                display: none;
            }
            .brand-logo-text{
                display: none;
            }
            .brand-block{
                justify-content: center;
                padding: 8px 0 14px;
            }
            .brand-dot{
                width: 24px;
                height: 24px;
            }
            .nav-link{
                justify-content: center;
                padding: 10px 0;
            }
            .nav-cta span{
                display: none;
            }
            .nav-cta{
                font-size: 0;
                padding: 10px 4px;
            }
            .nav-cta i{
                display: block;
            }
            .side-content{
                margin-left: 80px;
            }
        }

        @media (max-width: 960px) {
            .side-nav{
                display: none;
            }
            .side-content{
                margin-left: 0;
            }
            .site-nav-mobile{
                display: flex;
                align-items: center;
                justify-content: space-between;
                width: 100%;
                height: 68px;
                padding: 0 20px;
                background: #102820;
                border-bottom: 1px solid rgba(221,231,223,.1);
                z-index: 1001;
            }
            .mobile-brand{
                display: flex;
                align-items: center;
                gap: 10px;
            }
            .mobile-logo{
                color: #fff;
                font-size: 22px;
                font-weight: 800;
            }
            .mobile-sub{
                color: rgba(221,231,223,.6);
                font-size: 11px;
            }
            .mobile-menu-btn{
                background: none;
                border: none;
                color: #fff;
                font-size: 24px;
                cursor: pointer;
                width: 44px;
                height: 44px;
                display: flex;
                align-items: center;
                justify-content: center;
                border-radius: 6px;
            }
            .mobile-menu-btn:hover{
                background: rgba(255,255,255,.1);
            }
            .mobile-nav-drawer{
                position: fixed;
                top: 0;
                left: 0;
                width: 100%;
                height: 100vh;
                background: var(--color-nav);
                z-index: 999;
                padding: 50px 20px 40px;
                transform: translateX(-100%);
                transition: transform .3s ease;
                overflow-y: auto;
                display: flex;
                flex-direction: column;
            }
            .mobile-nav-drawer.open{
                transform: translateX(0);
            }
            .drawer-head{
                display: flex;
                justify-content: space-between;
                align-items: center;
                padding-bottom: 16px;
                border-bottom: 1px solid rgba(221,231,223,.12);
            }
            .drawer-brand{
                font-size: 24px;
                color: #fff;
                font-weight: 800;
            }
            .drawer-close{
                background: none;
                border: none;
                color: var(--color-nav-text);
                width: 44px;
                height: 44px;
                font-size: 22px;
                border-radius: 6px;
                cursor: pointer;
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .drawer-close:hover{
                background: rgba(255,255,255,.1);
            }
            .drawer-nav{
                display: flex;
                flex-direction: column;
                gap: 4px;
                margin-top: 20px;
            }
            .drawer-link{
                display: flex;
                align-items: center;
                gap: 14px;
                color: var(--color-nav-text);
                padding: 14px;
                border-radius: 8px;
                font-size: 16px;
                min-height: 48px;
                position: relative;
            }
            .drawer-link:hover,
            .drawer-link.active{
                background: rgba(221,231,223,.12);
                color: #fff;
            }
            .drawer-link.active{
                font-weight: 600;
            }
            .drawer-link.active::before{
                content: "";
                position: absolute;
                left: 0;
                top: 20%;
                height: 60%;
                width: 3px;
                background: var(--color-accent);
                border-radius: 0 3px 3px 0;
            }
            .container{
                padding-left: 20px;
                padding-right: 20px;
            }
        }

        @media (max-width: 640px) {
            .side-nav{
                display: none;
            }
            .container{
                padding-left: 16px;
                padding-right: 16px;
            }
            .site-nav-mobile{
                padding: 0 14px;
                height: 64px;
            }
            .section{
                padding: 48px 0;
            }
        }

        @media (max-width: 480px) {
            .brand-name-main{
                font-size: 20px;
            }
            .footer-bottom{
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 960px) {
            .footer-grid{
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }
        @media (max-width: 540px) {
            .footer-grid{
                grid-template-columns: 1fr;
                gap: 22px;
            }
            .footer-bottom span:last-child{
                font-size: 12px;
            }
        }

        .ckr {
            background: var(--color-card);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            box-shadow: var(--shadow-low);
        }
        .panel-title{
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 12px;
        }

        @media (max-width: 640px) {
            label{font-size: 16px;}
            .btn{width: 100%; justify-content: center;}
        }

.adv-hero{
            padding: 56px 0;
            position: relative;
        }
        .adv-hero .container{
            position: relative;
            z-index: 2;
        }
        .adv-hero h1{
            font-size: 48px;
            line-height: 1.25;
            font-weight: 800;
            color: var(--color-nav);
            max-width: 820px;
            letter-spacing: -.01em;
        }
        .adv-hero p{
            font-size: 19px;
            color: var(--color-text-secondary);
            max-width: 720px;
            margin-top: 14px;
            line-height: 1.7;
        }
        .adv-hero::before{
            content: "";
            position: absolute;
            top: 0;
            left: 40%;
            width: 35%;
            height: 120%;
            background: url(/assets/images/backpic/back-2.png);
            background-size: cover;
            background-position: center;
            opacity: .07;
            border-radius: 0 0 0 40px;
            pointer-events: none;
        }

        .match-article-section h2{
            font-size: 30px;
            font-weight: 800;
            color: var(--color-nav);
            margin-bottom: 10px;
        }

        .article-crumb-link{
            font-size: 14px;
            margin-right: 4px;
        }
        .crumb-sep{
            margin: 0 6px;
            color: #A0A5A0;
            font-style: normal;
        }

        .article-cover{
            border-radius: 16px;
            overflow: hidden;
            width: 100%;
            aspect-ratio: 16/9;
            background: var(--color-primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .article-cover img{
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

/* roulang page: category1 */
:root{
      --bg:#F6F5F0;
      --card:#FFFFFF;
      --nav-bg:#112E26;
      --nav-deep:#0C241E;
      --nav-text:#DDE7DF;
      --nav-muted:rgba(221,231,223,.58);
      --primary:#146B5C;
      --primary-deep:#0E4D43;
      --primary-light:#D9EBE4;
      --copper:#C9822C;
      --copper-light:#F3E3CC;
      --text:#212725;
      --text-2:#5F6E69;
      --line:#E3E1D6;
      --success:#2E7D5B;
      --danger:#B34A3C;
      --radius-lg:20px;
      --radius-card:14px;
      --radius-img:10px;
      --shadow-low:0 1px 2px rgba(15,35,28,.06),0 4px 14px rgba(15,35,28,.05);
      --shadow-up:0 6px 18px rgba(15,35,28,.09),0 10px 28px rgba(15,35,28,.06);
      --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC","Segoe UI",Roboto,sans-serif;
      --side-width:252px;
      --main-max:1240px;
    }

    *,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
    body{
      font-family:var(--font);
      background:var(--bg);
      color:var(--text);
      font-size:16px;
      line-height:1.75;
      min-height:100vh;
      -webkit-font-smoothing:antialiased;
    }
    body.nav-open{overflow:hidden}
    img{display:block;max-width:100%;border:0}
    a{color:var(--primary);text-decoration:none;transition:color .2s,background .2s,border-color .2s,transform .2s}
    ul,ol{list-style:none}
    button,input,select,textarea{font:inherit;color:inherit}
    button{cursor:pointer}
    :focus-visible{outline:2px solid var(--copper);outline-offset:2px;border-radius:4px}

    .app-shell{min-height:100vh}

    /* ===== 左侧竖向导航 ===== */
    .site-sidebar{
      position:fixed;
      inset:0 auto 0 0;
      width:var(--side-width);
      height:100vh;
      background:
        radial-gradient(circle at 18% 8%,rgba(217,235,228,.08),transparent 30%),
        linear-gradient(180deg,#122F27 0%,#112E26 46%,#0D2921 100%);
      z-index:120;
      display:flex;
      flex-direction:column;
      padding:30px 22px 26px;
      border-right:1px solid rgba(255,255,255,.05);
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      padding:0 8px 30px;
      color:#fff;
      border-bottom:1px solid rgba(221,231,223,.1);
    }
    .brand:hover{color:#fff}
    .brand-seal{
      width:46px;height:46px;
      display:flex;align-items:center;justify-content:center;
      background:var(--primary);
      color:#fff;
      border-radius:14px;
      font-weight:800;
      font-size:18px;
      letter-spacing:.02em;
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.12);
      font-variant-numeric:tabular-nums;
    }
    .brand-copy{display:flex;flex-direction:column;line-height:1.2;min-width:0}
    .brand-copy strong{font-size:20px;font-weight:800;letter-spacing:.03em;white-space:nowrap}
    .brand-copy small{font-size:12px;color:var(--nav-muted);margin-top:5px;font-family:ui-monospace,"SF Mono",Consolas,monospace}
    .side-nav{flex:1;display:flex;flex-direction:column;gap:4px;overflow-y:auto;padding:24px 0 16px}
    .nav-label{
      font-size:11px;
      letter-spacing:.18em;
      color:rgba(221,231,223,.5);
      padding:0 12px 10px;
      text-transform:uppercase;
    }
    .nav-link{
      display:flex;
      align-items:center;
      gap:11px;
      padding:12px 12px;
      border-radius:12px;
      color:var(--nav-text);
      font-size:15px;
      font-weight:500;
      min-height:44px;
      position:relative;
      transition:background .25s,color .25s;
    }
    .nav-link:hover{background:rgba(217,235,228,.09);color:#fff}
    .nav-link.active{background:rgba(217,235,228,.15);color:#fff;font-weight:600}
    .nav-link.active::before{
      content:"";
      position:absolute;
      left:-22px;
      top:10px;
      bottom:10px;
      width:3px;
      background:var(--copper);
      border-radius:0 4px 4px 0;
    }
    .nav-ico{width:21px;height:21px;fill:currentColor;flex:0 0 auto;opacity:.82}
    .nav-text{line-height:1.3}
    .side-bottom{margin-top:auto;border-top:1px solid rgba(221,231,223,.1);padding-top:20px}
    .side-cta{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:48px;
      background:var(--copper);
      color:#fff;
      font-weight:600;
      font-size:14px;
      border-radius:999px;
      padding:0 18px;
      transition:background .25s,transform .2s,box-shadow .25s;
    }
    .side-cta:hover{background:#ad6d21;color:#fff;box-shadow:0 8px 20px rgba(201,130,44,.2);transform:translateY(-1px)}
    .side-note{margin-top:14px;font-size:12px;color:var(--nav-muted);text-align:center;display:block}

    /* ===== 主区域 ===== */
    .main-shell{
      margin-left:var(--side-width);
      min-height:100vh;
      display:flex;
      flex-direction:column;
      background:var(--bg);
    }

    /* 移动顶部导航 */
    .mobile-header{
      display:none;
      position:sticky;
      top:0;
      z-index:110;
      height:68px;
      align-items:center;
      justify-content:space-between;
      padding:0 20px;
      background:var(--nav-bg);
      color:#fff;
      box-shadow:0 4px 16px rgba(15,35,28,.14);
    }
    .mobile-brand{display:flex;align-items:center;gap:11px;color:#fff;min-height:44px}
    .mobile-brand:hover{color:#fff}
    .mobile-brand .brand-seal{width:38px;height:38px;border-radius:11px;font-size:14px}
    .mobile-brand strong{display:block;font-size:17px;font-weight:800;letter-spacing:.03em;white-space:nowrap}
    .mobile-brand small{font-size:11px;color:rgba(221,231,223,.65);display:block;line-height:1.2;margin-top:2px}
    .menu-toggle{
      width:44px;height:44px;
      display:flex;align-items:center;justify-content:center;
      background:rgba(217,235,228,.08);
      border:1px solid rgba(217,235,228,.16);
      border-radius:12px;
      color:#fff;
      transition:background .2s,transform .2s;
    }
    .menu-toggle:hover{background:rgba(217,235,228,.16)}
    .menu-toggle:active{transform:scale(.96)}
    .menu-toggle svg{width:20px;height:20px;fill:currentColor}

    .page-content{
      max-width:calc(var(--main-max) + 64px);
      width:100%;
      margin:0 auto;
      padding:34px clamp(20px,4vw,52px) 30px;
      flex:1;
    }

    /* 面包屑 */
    .breadcrumbs{
      font-size:13px;
      color:var(--text-2);
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:8px;
      margin-bottom:28px;
    }
    .breadcrumbs a{color:var(--text-2)}
    .breadcrumbs a:hover{color:var(--primary)}
    .breadcrumbs .sep{color:#A8B2AC;font-size:12px}
    .breadcrumbs .current{color:var(--primary);font-weight:500}
    .breadcrumbs svg{width:14px;height:14px;fill:currentColor}

    /* ===== 分类页首屏 ===== */
    .cat-hero{
      display:grid;
      grid-template-columns:minmax(0,1.08fr) minmax(360px,.92fr);
      gap:clamp(24px,5vw,72px);
      align-items:center;
      background:linear-gradient(150deg,#FFFFFF 0%,#F8F6F0 72%,#F0EDE3 100%);
      border:1px solid rgba(227,225,214,.8);
      border-radius:24px;
      padding:clamp(30px,5vw,64px);
      margin-bottom:64px;
      position:relative;
      overflow:hidden;
    }
    .cat-hero::after{
      content:"";
      position:absolute;
      right:-90px;
      top:-120px;
      width:300px;
      height:300px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(217,235,228,.5),transparent 66%);
      pointer-events:none;
    }
    .hero-eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      background:var(--primary-light);
      color:var(--primary-deep);
      font-size:12px;
      font-weight:600;
      letter-spacing:.12em;
      padding:7px 15px;
      border-radius:999px;
      margin-bottom:20px;
    }
    .hero-eyebrow::before{content:"";width:6px;height:6px;background:var(--copper);border-radius:50%}
    .cat-hero h1{
      font-size:clamp(36px,4.3vw,52px);
      line-height:1.28;
      color:var(--nav-deep);
      font-weight:800;
      letter-spacing:.01em;
      margin-bottom:20px;
    }
    .cat-hero h1 em{font-style:normal;color:var(--primary)}
    .lead{
      font-size:17px;
      line-height:1.9;
      color:var(--text-2);
      max-width:30em;
      margin-bottom:28px;
    }
    .hero-actions{display:flex;flex-wrap:wrap;gap:13px;align-items:center}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:46px;
      padding:0 26px;
      border-radius:999px;
      font-weight:600;
      font-size:15px;
      border:1px solid transparent;
      transition:background .25s,border-color .25s,color .25s,box-shadow .25s,transform .2s;
      white-space:nowrap;
    }
    .btn:active{transform:scale(.98)}
    .btn-primary{background:var(--primary);color:#fff;box-shadow:0 2px 8px rgba(20,107,92,.2)}
    .btn-primary:hover{background:var(--primary-deep);color:#fff;box-shadow:var(--shadow-up)}
    .btn-secondary{background:transparent;border-color:rgba(20,107,92,.35);color:var(--primary)}
    .btn-secondary:hover{background:var(--primary-light);border-color:var(--primary)}
    .btn .arr{transition:transform .2s}
    .btn:hover .arr{transform:translateX(3px)}
    .hero-media{position:relative}
    .hero-media .frame-img{
      border-radius:18px;
      overflow:hidden;
      background:#EDEADF;
      box-shadow:var(--shadow-up);
      aspect-ratio:4/3;
    }
    .frame-img img{width:100%;height:100%;object-fit:cover}
    .image-tag{
      position:absolute;
      right:18px;
      top:18px;
      background:rgba(17,46,38,.78);
      color:#EAF2EC;
      font-size:12px;
      padding:6px 13px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.18);
      backdrop-filter:blur(6px);
      letter-spacing:.05em;
    }
    .hero-media .hero-caption{
      position:absolute;
      left:14px;
      right:14px;
      bottom:14px;
      background:rgba(246,245,240,.92);
      border:1px solid rgba(255,255,255,.5);
      border-radius:12px;
      padding:12px 16px;
      font-size:13px;
      color:var(--text);
      box-shadow:var(--shadow-low);
      backdrop-filter:blur(6px);
    }

    /* ===== 两列正文布局 ===== */
    .cat-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 276px;
      gap:clamp(24px,4vw,48px);
      align-items:start;
    }
    .cat-article{
      background:transparent;
      min-width:0;
    }
    .cat-article section{
      margin-bottom:64px;
      scroll-margin-top:30px;
    }
    .section-head{
      display:flex;
      align-items:baseline;
      gap:16px;
      margin-bottom:26px;
      border-bottom:1px solid var(--line);
      padding-bottom:14px;
    }
    .section-index{
      font-family:ui-monospace,"SF Mono",Consolas,monospace;
      font-size:13px;
      color:var(--copper);
      font-weight:700;
      letter-spacing:.04em;
    }
    .section-head h2{
      font-size:clamp(24px,2.6vw,31px);
      font-weight:750;
      color:var(--nav-deep);
      line-height:1.4;
      letter-spacing:.01em;
    }
    .section-head h3{
      font-size:19px;
      color:var(--text-2);
      font-weight:500;
    }
    .prose{
      max-width:58rem;
      font-size:17px;
      line-height:1.95;
      color:#303B37;
    }
    .prose p{font-size:17px;line-height:1.95;margin-bottom:20px;max-width:38em}
    .prose strong{color:var(--nav-deep);font-weight:650}
    .inline-chip{
      display:inline-flex;
      align-items:center;
      background:var(--primary-light);
      color:var(--primary-deep);
      border-radius:7px;
      padding:2px 11px;
      font-size:14px;
      font-weight:600;
    }

    /* 四字段说明行 */
    .field-list{
      margin:24px 0 6px;
      border-top:1px solid var(--line);
    }
    .field-list li{
      display:grid;
      grid-template-columns:108px minmax(0,1fr);
      gap:22px;
      padding:17px 4px;
      border-bottom:1px solid var(--line);
      align-items:baseline;
    }
    .field-list b{
      font-size:15px;
      color:var(--primary);
      font-weight:700;
      letter-spacing:.04em;
      font-variant-numeric:tabular-nums;
    }
    .field-list span{font-size:16px;color:var(--text-2);line-height:1.8}

    .content-figure{
      margin:34px 0;
      border-radius:var(--radius-lg);
      overflow:hidden;
      background:#EDE9DE;
      box-shadow:var(--shadow-low);
      border:1px solid rgba(227,225,214,.7);
    }
    .content-figure img{width:100%;height:auto;aspect-ratio:16/8;object-fit:cover}
    .content-figure figcaption{
      font-size:13px;
      color:var(--text-2);
      text-align:center;
      padding:11px 18px;
      background:#fff;
    }

    /* 分类对照表 */
    .table-holder{
      background:#fff;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      overflow:hidden;
      box-shadow:var(--shadow-low);
      margin:22px 0 14px;
    }
    .table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
    table{width:100%;border-collapse:collapse;min-width:560px}
    .cat-table th{
      background:#EBF1EC;
      color:var(--nav-deep);
      text-align:left;
      font-size:14px;
      font-weight:650;
      padding:14px 16px;
      letter-spacing:.04em;
      white-space:nowrap;
    }
    .cat-table td{
      padding:16px;
      vertical-align:top;
      border-bottom:1px solid var(--line);
      color:var(--text);
      font-size:15px;
      line-height:1.75;
    }
    .cat-table tr:last-child td{border-bottom:none}
    .cat-table tbody tr{transition:background .18s}
    .cat-table tbody tr:hover{background:#F9F8F3}
    .cat-table td strong{color:var(--primary-deep);font-weight:650;font-size:15px}
    .cat-table td small{
      display:block;
      color:var(--text-2);
      font-size:13px;
      margin-top:5px;
      line-height:1.6;
    }
    .table-note{
      font-size:14px;
      color:var(--text-2);
      background:var(--copper-light);
      border-radius:12px;
      padding:13px 18px;
      line-height:1.7;
      display:flex;
      gap:10px;
    }
    .table-note::before{content:"注";flex:0 0 auto;background:var(--copper);color:#fff;width:22px;height:22px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;margin-top:2px}

    /* 定位流程 */
    .flow-steps{
      counter-reset:flow;
      margin:28px 0 6px;
      display:flex;
      flex-direction:column;
      gap:0;
      max-width:42rem;
    }
    .flow-steps li{
      position:relative;
      padding:6px 0 30px 76px;
      border-left:1px solid #D1DDD4;
      margin-left:28px;
      counter-increment:flow;
    }
    .flow-steps li:last-child{border-left-color:transparent;padding-bottom:6px}
    .flow-steps li::before{
      content:counter(flow,decimal-leading-zero);
      font-family:ui-monospace,"SF Mono",Consolas,monospace;
      position:absolute;
      left:-28px;
      top:0;
      width:56px;
      height:56px;
      display:flex;
      align-items:center;
      justify-content:center;
      background:var(--nav-bg);
      color:#F3E3CC;
      border-radius:16px;
      font-size:15px;
      font-weight:700;
      letter-spacing:.04em;
      box-shadow:var(--shadow-low);
    }
    .flow-steps h3{
      font-size:18px;
      color:var(--nav-deep);
      margin-bottom:8px;
      font-weight:700;
    }
    .flow-steps p{color:var(--text-2);font-size:16px;line-height:1.85;max-width:32em}

    .highlight-panel{
      margin-top:40px;
      background:linear-gradient(135deg,var(--primary-deep),#175B50);
      border-radius:var(--radius-lg);
      color:rgba(231,243,235,.9);
      padding:28px 32px;
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:22px;
      justify-content:space-between;
      box-shadow:var(--shadow-up);
    }
    .highlight-panel p{max-width:31rem;font-size:15px;line-height:1.8}
    .highlight-panel p strong{color:#fff;font-weight:700}
    .highlight-panel a{background:#fff;color:var(--primary-deep);border-radius:999px;padding:0 20px;min-height:42px;display:inline-flex;align-items:center;font-weight:600;font-size:14px;gap:8px;transition:transform .2s}
    .highlight-panel a:hover{transform:translateY(-2px);color:var(--nav-deep)}

    /* FAQ */
    .faq-wrap{max-width:50rem}
    .faq-list{
      border-top:1px solid var(--line);
      margin-top:10px;
    }
    details{
      background:#fff;
      border-bottom:1px solid var(--line);
      border-left:3px solid transparent;
      transition:border-color .25s,background .25s;
    }
    details[open]{border-left-color:var(--copper);background:#FCFBF7}
    summary{
      cursor:pointer;
      list-style:none;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      min-height:60px;
      padding:17px 22px;
      font-weight:650;
      font-size:17px;
      color:var(--nav-deep);
      transition:color .2s,background .2s;
    }
    summary::-webkit-details-marker{display:none}
    summary:hover{background:var(--primary-light)}
    .faq-arrow{
      flex:0 0 auto;
      width:28px;height:28px;
      border-radius:50%;
      background:var(--primary-light);
      color:var(--primary);
      display:flex;
      align-items:center;
      justify-content:center;
      font-size:20px;
      line-height:1;
      transition:transform .25s,background .25s;
    }
    details[open] .faq-arrow{transform:rotate(45deg);background:var(--copper-light);color:var(--copper)}
    .faq-answer{
      padding:2px 22px 20px;
      font-size:16px;
      line-height:1.85;
      color:var(--text-2);
      max-width:42em;
    }
    .faq-answer p{margin-bottom:12px}
    .faq-answer p:last-child{margin-bottom:0}

    /* 底部 CTA */
    .cat-cta{
      background:
        radial-gradient(circle at 90% 20%,rgba(243,227,204,.7),transparent 28%),
        #fff;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      padding:clamp(32px,4vw,48px);
      margin-top:36px;
      display:flex;
      flex-wrap:wrap;
      gap:32px;
      align-items:center;
      justify-content:space-between;
      box-shadow:var(--shadow-low);
      position:relative;
      overflow:hidden;
    }
    .cat-cta::before{
      content:"";position:absolute;left:0;right:0;top:0;height:4px;
      background:linear-gradient(90deg,var(--primary),var(--copper));
    }
    .cat-cta h2{font-size:clamp(24px,3vw,30px);color:var(--nav-deep);font-weight:750;line-height:1.4;margin-bottom:10px}
    .cat-cta p{color:var(--text-2);font-size:16px;line-height:1.85;max-width:36rem;margin-bottom:0}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap}

    /* 右侧目录 */
    .cat-aside{
      position:sticky;
      top:28px;
      display:flex;
      flex-direction:column;
      gap:22px;
      min-width:0;
    }
    .aside-card{
      background:#fff;
      border:1px solid var(--line);
      border-radius:var(--radius-card);
      padding:22px 20px;
      box-shadow:var(--shadow-low);
    }
    .aside-title{
      font-size:14px;
      font-weight:700;
      letter-spacing:.14em;
      color:var(--nav-deep);
      margin-bottom:15px;
      padding-bottom:12px;
      border-bottom:1px solid var(--line);
      display:flex;
      align-items:center;
      gap:9px;
    }
    .aside-title::before{content:"";width:3px;height:15px;border-radius:2px;background:var(--copper)}
    .anchor-nav{display:flex;flex-direction:column;gap:2px}
    .anchor-nav a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:10px 6px;
      font-size:14px;
      color:var(--text-2);
      border-radius:9px;
      line-height:1.5;
      border-bottom:1px dashed #EFEDE4;
    }
    .anchor-nav a:last-child{border-bottom:none}
    .anchor-nav a:hover{color:var(--primary);background:var(--primary-light)}
    .anchor-nav i{
      font-style:normal;
      font-size:12px;
      color:var(--copper);
      font-family:ui-monospace,"SF Mono",Consolas,monospace;
    }
    .anchor-nav .here{color:var(--primary);font-weight:600}
    .aside-media{border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:#fff;box-shadow:var(--shadow-low)}
    .aside-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
    .aside-media .aside-media-body{padding:14px 16px 17px}
    .aside-media strong{display:block;color:var(--nav-deep);font-size:15px;margin-bottom:5px;font-weight:700}
    .aside-media p{font-size:13px;color:var(--text-2);line-height:1.6;margin-bottom:12px}
    .go-link{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;gap:6px;align-items:center}
    .go-link:hover .arr{transform:translateX(3px)}
    .go-link .arr{transition:transform .2s}
    .aside-tip{
      background:var(--copper-light);
      border:1px solid rgba(201,130,44,.22);
      border-radius:var(--radius-card);
      padding:18px 20px;
    }
    .aside-tip b{display:block;font-size:15px;color:var(--nav-deep);margin-bottom:7px}
    .aside-tip p{font-size:14px;color:#6B5A3F;line-height:1.75}
    .aside-tip a{color:#8C5A18;font-weight:600}

    /* ===== 页脚 ===== */
    .site-footer{
      margin-top:20px;
      background:#E9E8DF;
      border-top:1px solid #D9D7CB;
      padding-top:56px;
    }
    .footer-container{
      max-width:calc(var(--main-max) + 60px);
      margin:0 auto;
      padding:0 clamp(18px,4vw,40px) 30px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.4fr 1fr 1.5fr 1.1fr;
      gap:38px;
      padding-bottom:40px;
    }
    .footer-brand .logo-b{
      display:flex;
      align-items:center;
      gap:11px;
      margin-bottom:14px;
    }
    .footer-brand .brand-symbol{
      width:39px;height:39px;
      background:var(--primary);
      border-radius:11px;
      color:#fff;
      display:flex;align-items:center;justify-content:center;
      font-size:14px;font-weight:800;
    }
    .footer-brand .brand-name{font-size:20px;font-weight:800;color:var(--nav-deep)}
    .brand-url-line{
      font-family:ui-monospace,"SF Mono",Consolas,monospace;
      font-size:12px;
      color:var(--primary);
      background:var(--primary-light);
      padding:4px 12px;
      border-radius:999px;
      display:inline-block;
      margin-bottom:15px;
    }
    .footer-brand p,.footer-note p{
      font-size:15px;
      color:var(--text-2);
      line-height:1.8;
      margin-bottom:0;
    }
    .footer-title{
      font-size:14px;
      font-weight:700;
      color:var(--nav-deep);
      letter-spacing:.08em;
      margin-bottom:17px;
      padding-bottom:10px;
      border-bottom:1px solid #D9D7CB;
    }
    .footer-links{display:flex;flex-direction:column;gap:9px}
    .footer-links a{font-size:15px;color:var(--text-2);width:fit-content}
    .footer-links a:hover{color:var(--primary)}
    .note-chip{
      display:inline-block;
      background:#fff;
      border:1px dashed #CDD1C5;
      border-radius:999px;
      font-size:13px;
      color:var(--text-2);
      padding:6px 15px;
      margin-top:8px;
    }
    .footer-bottom{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      flex-wrap:wrap;
      border-top:1px solid #D6D5C9;
      padding:21px 2px 4px;
      font-size:13px;
      color:var(--text-2);
    }
    .footer-bottom .copyright{color:var(--text-2)}

    .mobile-scrim{
      display:none;
    }

    /* ===== 响应式 ===== */
    @media (min-width:1280px){
      .page-content{padding-left:56px;padding-right:56px}
    }
    @media (max-width:1279px) and (min-width:961px){
      :root{--side-width:82px}
      .site-sidebar{padding-left:13px;padding-right:13px}
      .brand-copy{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
      .brand{padding-bottom:24px;justify-content:center}
      .brand-seal{width:44px;height:44px}
      .side-nav{padding:18px 0}
      .nav-label{text-align:center;font-size:0;padding:0}
      .nav-label::after{content:"·";font-size:16px;color:rgba(221,231,223,.55);display:block;line-height:1}
      .nav-link{justify-content:center;padding:13px 0;margin:0 auto;width:48px;flex-wrap:wrap}
      .nav-text{font-size:12px;font-weight:400;line-height:1.1;margin-top:3px;text-align:center;flex-basis:100%}
      .nav-ico{width:22px;height:22px}
      .nav-link.active::before{left:-13px}
      .side-bottom{padding-top:16px}
      .side-cta{border-radius:999px;font-size:12px;padding:0;min-height:48px;width:48px;margin:0 auto}
      .side-cta .cta-fill{display:none}
      .side-note{display:none}
      .cat-layout{grid-template-columns:minmax(0,1fr) 238px}
    }
    @media (max-width:960px){
      .site-sidebar{
        width:min(340px,88vw);
        transform:translateX(-105%);
        transition:transform .3s cubic-bezier(.23,1,.32,1);
        box-shadow:none;
      }
      body.nav-open .site-sidebar{transform:translateX(0);box-shadow:0 0 0 999px rgba(12,36,30,.45)}
      .mobile-scrim{display:block}
      .mobile-header{display:flex}
      .main-shell{margin-left:0;padding-top:0}
      .cat-layout{grid-template-columns:1fr}
      .cat-aside{
        position:static;
        display:block;
        columns:1;
      }
      .cat-aside .aside-card,.cat-aside .aside-media,.cat-aside .aside-tip{margin-bottom:20px}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-brand{grid-column:1/-1}
      .cat-hero{grid-template-columns:1fr;gap:34px}
      .hero-media{max-width:90%}
    }
    @media (max-width:640px){
      body{font-size:16px}
      .page-content{padding-left:16px;padding-right:16px;padding-top:24px}
      .cat-hero{padding:28px 20px;border-radius:18px}
      .cat-hero h1{font-size:33px}
      .field-list li{grid-template-columns:1fr;gap:4px}
      .footer-grid{grid-template-columns:1fr;gap:30px}
      .footer-bottom{flex-direction:column;align-items:flex-start}
      .cat-cta,.highlight-panel{padding:26px 22px}
      summary{font-size:16px;padding-left:16px;padding-right:16px}
      .faq-answer{padding-left:16px;padding-right:16px}
      .content-figure figcaption{font-size:12px}
      .table-note{flex-direction:column;font-size:13px}
    }
    @media (prefers-reduced-motion:reduce){
      *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
    }

/* roulang page: category2 */
:root {
    --nav-width: 252px;
    --bg-page: #F6F5F0;
    --bg-card: #FFFFFF;
    --nav-bg: #112E26;
    --nav-text: #DDE7DF;
    --primary: #146B5C;
    --primary-deep: #0E4D43;
    --primary-light: #D9EBE4;
    --accent: #C9822C;
    --accent-light: #F3E3CC;
    --text: #212725;
    --text-soft: #5F6E69;
    --line: #E3E1D6;
    --success: #1F7A5A;
    --danger: #A34D3D;
    --radius-lg: 20px;
    --radius-card: 14px;
    --radius-btn: 999px;
    --shadow-low: 0 1px 2px rgba(15, 35, 28, .06), 0 4px 14px rgba(15, 35, 28, .05);
    --shadow-hover: 0 6px 18px rgba(15, 35, 28, .09), 0 10px 28px rgba(15, 35, 28, .06);
    --font-stack: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
    --space-section: 96px;
  }

  * {
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    margin: 0;
    background: var(--bg-page);
    color: var(--text);
    font-family: var(--font-stack);
    font-size: 16px;
    line-height: 1.76;
    -webkit-font-smoothing: antialiased;
  }

  body.menu-open {
    overflow: hidden;
  }

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

  h1, h2, h3, h4 {
    color: #112E26;
    line-height: 1.35;
    margin: 0 0 .55em;
    text-wrap: balance;
  }

  h2 {
    font-size: clamp(27px, 3vw, 34px);
    letter-spacing: .01em;
  }

  h3 {
    font-size: clamp(19px, 1.6vw, 23px);
  }

  p {
    margin: 0 0 1.2em;
  }

  a {
    color: var(--primary);
    text-underline-offset: 3px;
    transition: color .2s ease, background .2s ease, border-color .2s ease;
  }

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

  button {
    font-family: inherit;
  }

  .main a:focus-visible,
  .btn:focus-visible,
  .side-nav a:focus-visible,
  summary:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
  }

  .layout {
    min-height: 100vh;
  }

  .side-nav {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--nav-width);
    background: var(--nav-bg);
    color: var(--nav-text);
    z-index: 80;
    display: flex;
    flex-direction: column;
    padding: 0 0 18px;
  }

  .brand {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 30px 24px 22px;
    border-bottom: 1px solid rgba(221, 231, 223, .12);
  }

  .logo-b {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    line-height: 1;
  }

  .brand-symbol {
    width: 38px;
    height: 38px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    color: #fff;
    font-weight: 800;
    font-size: 18px;
    letter-spacing: -.02em;
  }

  .brand-name {
    color: #fff;
    font-size: 19px;
    font-weight: 700;
    letter-spacing: .03em;
  }

  .brand-url-line {
    font-size: 12px;
    color: rgba(221, 231, 223, .56);
    letter-spacing: .05em;
  }

  .nav-toggle {
    display: none;
  }

  .nav-scroll {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    padding: 22px 14px 10px;
  }

  .nav-label {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .2em;
    color: rgba(221, 231, 223, .52);
    padding: 0 12px 12px;
  }

  .nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    margin-bottom: 5px;
    border-left: 3px solid transparent;
    border-radius: 10px;
    color: var(--nav-text);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    line-height: 1.45;
    transition: background .2s ease, color .2s ease, border-color .2s ease;
    min-height: 44px;
  }

  .nav-link .nav-text {
    display: inline-block;
  }

  .nav-ico {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    fill: currentColor;
    opacity: .78;
  }

  .nav-link:hover {
    background: rgba(255, 255, 255, .08);
    color: #fff;
  }

  .nav-link.active {
    background: rgba(201, 130, 44, .18);
    color: #fff;
    border-left-color: var(--accent);
  }

  .nav-link.active .nav-ico {
    opacity: 1;
  }

  .nav-cta {
    margin-top: auto;
    padding: 22px 10px 0;
  }

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

  .main {
    margin-left: var(--nav-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--bg-page);
  }

  .main-content {
    flex: 1;
    width: 100%;
    max-width: 1220px;
    margin: 0 auto;
    padding: 56px 48px 0;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 13px 26px;
    border: 1px solid transparent;
    border-radius: var(--radius-btn);
    font-size: 15px;
    font-weight: 600;
    line-height: 1.1;
    text-decoration: none;
    cursor: pointer;
    transition: background .22s ease, color .22s ease, border-color .22s ease, box-shadow .22s ease, transform .12s ease;
    font-family: inherit;
  }

  .btn:hover {
    color: #fff;
  }

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

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

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

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

  .btn-outline:hover {
    background: var(--primary-light);
    color: var(--primary-deep);
  }

  .btn-ghost-light {
    background: transparent;
    border-color: rgba(255, 255, 255, .55);
    color: #fff;
  }

  .btn-ghost-light:hover {
    background: rgba(255, 255, 255, .14);
    border-color: #fff;
    color: #fff;
  }

  .section {
    margin-top: var(--space-section);
  }

  .section-head {
    max-width: 820px;
    margin-bottom: 36px;
  }

  .section-kicker {
    display: inline-block;
    color: var(--accent);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: .16em;
    margin-bottom: 12px;
  }

  .section-title {
    margin-bottom: 16px;
  }

  .section-lead {
    color: var(--text-soft);
    font-size: 17px;
    max-width: 760px;
  }

  .category-hero {
    position: relative;
    overflow: hidden;
    background:
      linear-gradient(110deg, rgba(14, 77, 67, .94), rgba(17, 46, 38, .78)),
      url("/assets/images/backpic/back-3.webp") center / cover no-repeat;
    border-radius: 24px;
    padding: clamp(38px, 7vw, 84px) clamp(30px, 6vw, 76px);
    color: #fff;
    box-shadow: var(--shadow-low);
  }

  .category-hero::after {
    content: "";
    position: absolute;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: rgba(201, 130, 44, .14);
    right: -72px;
    top: -90px;
    pointer-events: none;
  }

  .category-hero .hero-content {
    position: relative;
    z-index: 1;
    max-width: 820px;
  }

  .hero-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(201, 130, 44, .22);
    border: 1px solid rgba(243, 227, 204, .35);
    color: #F9EFDE;
    border-radius: 999px;
    padding: 7px 14px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .08em;
    margin-bottom: 24px;
  }

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

  .category-hero h1 {
    color: #fff;
    font-size: clamp(30px, 4vw, 46px);
    line-height: 1.25;
    max-width: 760px;
    margin-bottom: 18px;
    letter-spacing: .01em;
  }

  .category-hero .hero-lead {
    color: rgba(255, 255, 255, .86);
    font-size: clamp(16px, 1.5vw, 18px);
    line-height: 1.85;
    max-width: 700px;
    margin-bottom: 32px;
  }

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

  .split-list {
    display: grid;
    gap: 56px;
    margin-top: 42px;
  }

  .split-row {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 44px;
    align-items: center;
  }

  .feature-media {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    background: var(--primary-light);
    aspect-ratio: 4 / 3;
    box-shadow: var(--shadow-low);
  }

  .feature-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .4s ease;
  }

  .split-row:hover .feature-media img {
    transform: scale(1.025);
  }

  .media-stamp {
    position: absolute;
    top: 14px;
    right: 14px;
    background: rgba(255, 255, 255, .92);
    color: var(--primary-deep);
    font-size: 13px;
    font-weight: 700;
    padding: 6px 12px;
    border-radius: 999px;
    box-shadow: var(--shadow-low);
    backdrop-filter: blur(4px);
  }

  .split-copy {
    padding: 8px 0;
  }

  .split-copy h3 {
    margin-bottom: 10px;
  }

  .split-copy .feature-desc {
    color: var(--text-soft);
    font-size: 17px;
    margin-bottom: 16px;
  }

  .split-copy .feature-tag {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary-deep);
    font-size: 13px;
    font-weight: 600;
    padding: 5px 12px;
    border-radius: 999px;
  }

  .split-row:nth-child(even) .feature-media {
    order: 2;
  }

  .memo-panel {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 22px;
    padding: 28px 36px;
    box-shadow: var(--shadow-low);
  }

  .memo-row {
    display: grid;
    grid-template-columns: minmax(190px, 240px) minmax(0, 1fr) auto;
    gap: 26px;
    align-items: center;
    padding: 24px 4px;
    border-bottom: 1px solid var(--line);
  }

  .memo-row:last-child {
    border-bottom: 0;
    padding-bottom: 8px;
  }

  .memo-title {
    margin: 0;
    font-size: 18px;
    font-weight: 700;
  }

  .memo-desc {
    color: var(--text-soft);
    font-size: 15.5px;
    margin: 0;
    line-height: 1.75;
  }

  .memo-chip {
    background: var(--accent-light);
    color: #9A6120;
    font-size: 13px;
    font-weight: 700;
    padding: 6px 12px;
    border-radius: 999px;
    white-space: nowrap;
  }

  .steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 38px;
  }

  .step-item {
    position: relative;
    padding-top: 12px;
  }

  .step-no {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--primary-deep);
    color: #fff;
    font-weight: 800;
    font-size: 17px;
    margin-bottom: 20px;
    font-variant-numeric: tabular-nums;
  }

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

  .step-desc {
    color: var(--text-soft);
    font-size: 15px;
    line-height: 1.72;
    margin-bottom: 0;
  }

  .faq-wrap {
    max-width: 880px;
  }

  details.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 16px;
    margin-bottom: 14px;
    overflow: hidden;
    transition: box-shadow .2s ease;
  }

  details.faq-item[open] {
    box-shadow: var(--shadow-low);
  }

  details.faq-item summary {
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 20px 24px;
    color: #112E26;
    font-size: 17px;
    font-weight: 600;
    line-height: 1.5;
  }

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

  details.faq-item summary::after {
    content: "+";
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light);
    color: var(--primary-deep);
    font-size: 22px;
    font-weight: 400;
    line-height: 1;
    transition: transform .2s ease, background .2s ease;
  }

  details.faq-item[open] summary::after {
    transform: rotate(45deg);
    background: var(--accent-light);
    color: #9A6120;
  }

  .faq-body {
    padding: 0 24px 22px;
    color: var(--text-soft);
    font-size: 16px;
    line-height: 1.85;
    max-width: 800px;
  }

  .faq-body p:last-child {
    margin-bottom: 0;
  }

  .jump-cta {
    position: relative;
    overflow: hidden;
    background: var(--primary-deep);
    border-radius: 24px;
    color: #fff;
    padding: clamp(32px, 5vw, 58px);
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(280px, 1fr);
    gap: 28px;
    align-items: center;
    box-shadow: var(--shadow-low);
  }

  .jump-cta::before {
    content: "";
    position: absolute;
    width: 190px;
    height: 190px;
    right: -44px;
    top: -60px;
    border-radius: 50%;
    background: rgba(201, 130, 44, .18);
  }

  .jump-copy {
    position: relative;
    z-index: 1;
  }

  .jump-copy h2 {
    color: #fff;
  }

  .jump-copy p {
    color: rgba(255, 255, 255, .8);
    margin-bottom: 0;
    max-width: 660px;
  }

  .jump-actions {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .site-footer {
    margin-top: 96px;
    background: #1D2A25;
    color: #BFCFC7;
    padding: 62px 48px 26px;
  }

  .footer-container {
    max-width: 1220px;
    margin: 0 auto;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.7fr 1fr 1fr 1.3fr;
    gap: 40px;
    padding-bottom: 38px;
  }

  .footer-brand p {
    color: #A7B8B0;
    font-size: 14.5px;
    line-height: 1.8;
    margin: 12px 0 0;
    max-width: 320px;
  }

  .footer-brand .brand-url-line {
    color: #81958C;
    font-size: 12px;
  }

  .footer-brand .logo-b {
    margin-bottom: 14px;
  }

  .footer-title {
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 18px;
  }

  .footer-links {
    display: grid;
    gap: 9px;
  }

  .footer-links a {
    color: #A7B8B0;
    text-decoration: none;
    font-size: 14.5px;
    transition: color .2s ease;
  }

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

  .footer-note p {
    color: #A7B8B0;
    font-size: 14.5px;
    line-height: 1.8;
    max-width: 260px;
  }

  .note-chip {
    display: inline-block;
    background: rgba(255, 255, 255, .08);
    border: 1px solid rgba(255, 255, 255, .12);
    color: #DDE7DF;
    font-size: 13px;
    padding: 7px 14px;
    border-radius: 999px;
  }

  .footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    flex-wrap: wrap;
    border-top: 1px solid rgba(255, 255, 255, .1);
    padding-top: 22px;
    color: #81958C;
    font-size: 13.5px;
  }

  .copyright {
    color: #C5D4CD;
  }

  @media (max-width: 1279px) {
    .footer-grid {
      grid-template-columns: 1.5fr 1fr 1fr;
    }

    .footer-note {
      grid-column: 2 / -1;
    }
  }

  @media (max-width: 960px) {
    :root {
      --space-section: 76px;
    }

    .side-nav {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      bottom: auto;
      width: 100%;
      height: 68px;
      flex-direction: row;
      align-items: center;
      padding: 0 16px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, .12);
      background: #112E26;
    }

    .brand {
      flex-direction: row;
      align-items: center;
      gap: 10px;
      padding: 0;
      border-bottom: 0;
    }

    .brand-symbol {
      width: 34px;
      height: 34px;
      font-size: 16px;
      border-radius: 10px;
    }

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

    .brand-url-line {
      display: none;
    }

    .nav-toggle {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 44px;
      height: 44px;
      margin-left: auto;
      background: transparent;
      border: 1px solid rgba(255, 255, 255, .24);
      border-radius: 12px;
      cursor: pointer;
      color: #fff;
      position: relative;
      z-index: 3;
    }

    .nav-toggle span,
    .nav-toggle span::before,
    .nav-toggle span::after {
      content: "";
      display: block;
      width: 18px;
      height: 2px;
      border-radius: 10px;
      background: #fff;
      transition: transform .24s ease, opacity .2s ease;
    }

    .nav-toggle span::before {
      transform: translateY(-5px);
    }

    .nav-toggle span::after {
      transform: translateY(3px);
    }

    .nav-toggle.is-open span {
      background: transparent;
    }

    .nav-toggle.is-open span::before {
      transform: rotate(45deg);
    }

    .nav-toggle.is-open span::after {
      transform: rotate(-45deg);
    }

    .nav-scroll {
      position: fixed;
      top: 68px;
      left: 0;
      right: 0;
      bottom: 0;
      width: 100%;
      height: calc(100vh - 68px);
      background: var(--nav-bg);
      display: none;
      flex-direction: column;
      padding: 27px 24px 36px;
      overflow-y: auto;
    }

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

    .nav-label {
      padding-left: 4px;
    }

    .nav-link {
      font-size: 17px;
      padding: 15px 16px;
    }

    .nav-cta {
      padding-bottom: 18px;
    }

    .main {
      margin-left: 0;
      padding-top: 68px;
    }

    .main-content {
      padding: 42px 28px 0;
    }

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

    .split-row:nth-child(even) .feature-media {
      order: 0;
    }

    .feature-media {
      max-height: 320px;
    }

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

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

    .memo-row {
      grid-template-columns: 1fr;
      gap: 10px;
    }

    .memo-chip {
      justify-self: start;
    }

    .jump-cta {
      grid-template-columns: 1fr;
    }

    .site-footer {
      padding: 52px 28px 24px;
    }

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

    .footer-note {
      grid-column: 1 / -1;
    }
  }

  @media (max-width: 640px) {
    .section {
      margin-top: 62px;
    }

    .main-content {
      padding: 28px 18px 0;
    }

    .category-hero {
      border-radius: 18px;
      padding: 36px 24px;
    }

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

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

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

    .steps-grid {
      grid-template-columns: 1fr;
      gap: 24px;
    }

    .step-item {
      padding-left: 10px;
    }

    .memo-panel {
      padding: 10px 16px;
      border-radius: 16px;
    }

    .memo-row {
      padding: 20px 2px;
    }

    details.faq-item summary {
      padding: 16px 18px;
      font-size: 16px;
    }

    .faq-body {
      padding: 0 18px 18px;
    }

    .jump-cta {
      border-radius: 18px;
      padding: 34px 24px;
    }

    .site-footer {
      padding: 44px 18px 22px;
    }

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

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

    .footer-bottom {
      flex-direction: column;
      align-items: flex-start;
      gap: 8px;
    }
  }