/* roulang page: index */
:root {
  --paper: #F3F4F0;
  --surface: #FFFFFF;
  --surface-soft: #EAEDE7;
  --ink: #182728;
  --ink-soft: #445553;
  --deep: #0E2321;
  --primary: #D05F2B;
  --primary-hover: #B24A1E;
  --secondary: #2E7D6E;
  --line: #D9DED6;
  --focus: #E29A3B;
  --radius-card: 10px;
  --radius-panel: 16px;
  --shadow-card: 0 1px 2px rgba(14,35,33,.04), 0 8px 20px -12px rgba(14,35,33,.14);
  --shadow-card-hover: 0 2px 4px rgba(14,35,33,.06), 0 18px 36px -16px rgba(14,35,33,.22);
  --tr: .2s ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Noto Sans SC", sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
  border: 0;
}

a {
  color: var(--secondary);
  text-decoration: none;
  transition: color var(--tr), background var(--tr), border-color var(--tr), box-shadow var(--tr);
}

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(226,154,59,.55);
  outline-offset: 2px;
  border-radius: 4px;
}

.grid-container {
  max-width: 1200px;
}

::selection {
  background: rgba(46,125,110,.25);
}

.pg-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 4px 18px -12px rgba(14,35,33,.18);
}

.pg-header__top {
  border-bottom: 1px solid rgba(217,222,214,.8);
  padding: 10px 0;
}

.pg-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.pg-logo__icon {
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--deep);
  border-radius: 10px;
}

.pg-logo__text {
  line-height: 1.25;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: .02em;
  font-size: 20px;
}

.pg-logo__text span {
  color: var(--primary);
}

.pg-logo__sub {
  font-size: 10px;
  font-weight: 600;
  color: var(--ink-soft);
  letter-spacing: .16em;
  display: block;
  margin-top: 2px;
}

.pg-header__actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 18px;
}

.pg-search-form {
  display: flex;
  align-items: center;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 6px;
  height: 42px;
  max-width: 240px;
  width: 100%;
  padding: 0 6px 0 12px;
  transition: border-color var(--tr), box-shadow var(--tr);
}

.pg-search-form:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(226,154,59,.28);
}

.pg-search-form input {
  border: 0;
  background: transparent;
  box-shadow: none;
  margin: 0;
  height: 38px;
  padding: 0 6px;
  font-size: 14px;
  color: var(--ink);
}

.pg-search-form input::placeholder {
  color: var(--ink-soft);
  opacity: .8;
}

.pg-search-form button {
  width: 32px;
  height: 32px;
  border: 0;
  background: transparent;
  color: var(--ink-soft);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 5px;
  cursor: pointer;
  transition: color var(--tr), background var(--tr);
}

.pg-search-form button:hover {
  color: var(--primary);
  background: var(--surface-soft);
}

.pg-nav-bar {
  background: var(--surface);
}

.pg-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
  min-height: 48px;
}

.pg-nav::-webkit-scrollbar {
  display: none;
}

.pg-nav__link {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  color: var(--ink-soft);
  font-weight: 600;
  font-size: 15px;
  padding: 12px 18px;
  border-radius: 999px;
  position: relative;
  transition: color var(--tr), background var(--tr);
}

.pg-nav__link:hover {
  color: var(--ink);
  background: var(--paper);
}

.pg-nav__link.is-active {
  color: var(--surface);
  background: var(--deep);
}

.pg-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  font-size: 15px;
  line-height: 1;
  padding: 13px 22px;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--tr), border-color var(--tr), color var(--tr), transform var(--tr), box-shadow var(--tr);
  text-align: center;
}

.pg-btn--primary {
  background: var(--primary);
  color: #fff !important;
  box-shadow: 0 2px 8px -2px rgba(208,95,43,.55);
}

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

.pg-btn--ghost {
  background: transparent;
  border-color: rgba(255,255,255,.7);
  color: #fff !important;
}

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

.pg-btn--light {
  background: #fff;
  color: var(--deep) !important;
}

.pg-btn--light:hover {
  background: var(--surface-soft);
  transform: translateY(1px);
}

.pg-btn--outline {
  background: var(--surface);
  border-color: var(--line);
  color: var(--ink) !important;
}

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

.pg-btn--sm {
  padding: 9px 14px;
  font-size: 14px;
  border-radius: 6px;
}

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

.pg-section--paper {
  background: var(--paper);
}

.pg-section--soft {
  background: var(--surface-soft);
}

.pg-section__head {
  margin-bottom: 48px;
}

.pg-section__title {
  font-size: clamp(26px, 3.2vw, 36px);
  line-height: 1.3;
  font-weight: 800;
  color: var(--ink);
  margin: 0;
  letter-spacing: .01em;
}

.pg-section__title::before {
  content: "// ";
  color: var(--primary);
  font-weight: 800;
}

.pg-section__desc {
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.9;
  max-width: 760px;
  margin: 12px 0 0;
}

.pg-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.25);
  color: rgba(255,255,255,.8);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 13px;
  letter-spacing: .06em;
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 24px;
}

.pg-hero {
  background:
    linear-gradient(105deg, rgba(9,29,27,.98) 0%, rgba(10,34,31,.94) 38%, rgba(15,44,41,.72) 80%, rgba(21,63,58,.60) 100%),
    url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  color: #fff;
  padding: 104px 0 88px;
  overflow: hidden;
  position: relative;
}

.pg-hero::before {
  content: "PG";
  position: absolute;
  top: -10px;
  right: -20px;
  font-size: clamp(140px, 26vw, 320px);
  line-height: 1;
  color: rgba(255,255,255,.025);
  font-weight: 800;
  user-select: none;
  pointer-events: none;
}

.pg-hero__content {
  position: relative;
  z-index: 2;
}

.pg-hero h1 {
  color: #fff;
  font-size: clamp(34px, 4.6vw, 56px);
  line-height: 1.2;
  font-weight: 800;
  margin: 0 0 22px;
  letter-spacing: .01em;
}

.pg-hero h1 .pg-hero__text-accent {
  color: #E7A16E;
}

.pg-hero__lead {
  color: rgba(255,255,255,.82);
  font-size: 17px;
  line-height: 1.9;
  max-width: 620px;
  margin: 0 0 34px;
}

.pg-hero__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.pg-hero__media {
  border-radius: var(--radius-panel);
  overflow: hidden;
  box-shadow: 0 30px 80px -20px rgba(0,0,0,.5);
  border: 1px solid rgba(255,255,255,.18);
  transform: rotate(.4deg);
}

.pg-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pg-stats-bar {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding: 26px 0;
}

.pg-stat {
  padding: 16px 22px;
  border-left: 1px solid var(--line);
}

.pg-stat:first-child {
  border-left: 0;
}

.pg-stat__num {
  font-size: 30px;
  font-weight: 800;
  color: var(--deep);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}

.pg-stat__num span {
  color: var(--primary);
}

.pg-stat__label {
  color: var(--ink-soft);
  font-size: 14px;
  margin-top: 4px;
}

.pg-product-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-card);
  transition: transform var(--tr), box-shadow var(--tr);
}

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

.pg-product-card__media {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  position: relative;
  background: var(--surface-soft);
}

.pg-product-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .35s ease;
}

.pg-product-card:hover .pg-product-card__media img {
  transform: scale(1.04);
}

.pg-product-card__badge {
  position: absolute;
  left: 12px;
  top: 12px;
  background: rgba(255,255,255,.93);
  color: var(--secondary);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  letter-spacing: .03em;
}

.pg-product-card__body {
  padding: 20px 20px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.pg-product-card__series {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 12px;
  color: var(--primary);
  letter-spacing: .12em;
  margin-bottom: 6px;
}

.pg-product-card__title {
  font-size: 19px;
  line-height: 1.4;
  font-weight: 800;
  color: var(--ink);
  margin: 0 0 10px;
}

.pg-product-card__desc {
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.75;
  margin: 0 0 20px;
  flex: 1;
}

.pg-product-card__links {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.pg-product-card__link {
  font-weight: 700;
  font-size: 14px;
  color: var(--ink);
  display: inline-flex;
  gap: 4px;
  align-items: center;
}

.pg-product-card__link:hover {
  color: var(--primary);
}

.pg-quote-section {
  background: var(--surface-soft);
  position: relative;
  overflow: hidden;
}

.pg-quote-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(14,35,33,.026) 1px, transparent 1px), linear-gradient(90deg, rgba(14,35,33,.026) 1px, transparent 1px);
  background-size: 36px 36px;
  pointer-events: none;
}

.pg-quote-slider {
  position: relative;
  z-index: 2;
}

.pg-quote-slider__viewport {
  overflow: hidden;
  border-radius: var(--radius-panel);
}

.pg-quote-slider__track {
  display: flex;
  transition: transform .45s cubic-bezier(.22, .85, .4, 1);
}

.pg-quote-slide {
  flex: 0 0 100%;
  min-width: 0;
  padding: 8px;
}

.pg-quote-card {
  background: var(--surface);
  border-radius: var(--radius-panel);
  padding: 44px 48px 40px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--line);
  max-width: 920px;
  margin: 0 auto;
  position: relative;
}

.pg-quote-card::before {
  content: "“";
  font-family: Georgia, serif;
  position: absolute;
  left: 28px;
  top: 6px;
  font-size: 78px;
  line-height: 1;
  color: var(--primary);
  opacity: .2;
  font-weight: 800;
}

.pg-quote-card__title {
  font-weight: 800;
  font-size: 20px;
  color: var(--ink);
  margin: 0 0 16px;
}

.pg-quote-card__text {
  color: var(--ink-soft);
  line-height: 1.9;
  margin: 0 0 24px;
}

.pg-quote-card__meta {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--ink);
  font-weight: 700;
  font-size: 14px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.pg-quote-card__meta span {
  color: var(--secondary);
  background: rgba(46,125,110,.1);
  padding: 3px 10px;
  border-radius: 999px;
  font-weight: 600;
}

.pg-quote-slider__controls {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 34px;
}

.pg-slider-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--tr), color var(--tr), border-color var(--tr);
  box-shadow: 0 2px 6px rgba(14,35,33,.06);
}

.pg-slider-btn:hover {
  background: var(--deep);
  color: #fff;
  border-color: var(--deep);
}

.pg-slider-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 18px;
}

.pg-slider-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  border: 0;
  background: var(--line);
  padding: 0;
  cursor: pointer;
  transition: background var(--tr), width var(--tr);
}

.pg-slider-dot.is-active {
  background: var(--primary);
  width: 22px;
}

.pg-service-card {
  text-align: center;
  padding: 10px 14px;
}

.pg-service-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  background: var(--surface);
  border-radius: 14px;
  color: var(--secondary);
  box-shadow: var(--shadow-card);
  margin-bottom: 16px;
}

.pg-service-card h3 {
  font-size: 18px;
  font-weight: 800;
  color: var(--ink);
  margin: 0 0 8px;
}

.pg-service-card p {
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.7;
  max-width: 260px;
  margin: 0 auto;
}

.pg-news-feature {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  overflow: hidden;
  height: 100%;
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--tr), transform var(--tr);
  color: var(--ink);
}

.pg-news-feature:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
  color: var(--ink);
}

.pg-news-feature__media {
  aspect-ratio: 16 / 8.6;
  overflow: hidden;
  background: var(--surface-soft);
}

.pg-news-feature__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .35s ease;
}

.pg-news-feature:hover .pg-news-feature__media img {
  transform: scale(1.04);
}

.pg-news-feature__body {
  padding: 26px 26px 30px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.pg-news-feature__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}

.pg-tag {
  display: inline-flex;
  align-items: center;
  background: rgba(46,125,110,.1);
  color: var(--secondary);
  font-weight: 700;
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 999px;
  line-height: 1.6;
}

.pg-tag--soft {
  background: var(--surface-soft);
  color: var(--ink-soft);
}

.pg-date {
  font-size: 13px;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

.pg-news-feature h3 {
  font-size: 23px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--ink);
  margin: 0 0 14px;
}

.pg-news-feature__summary {
  color: var(--ink-soft);
  line-height: 1.85;
  margin: 0 0 22px;
  flex: 1;
}

.pg-news-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.pg-news-list__item {
  border-bottom: 1px solid var(--line);
  padding: 18px 0;
  transition: padding-left var(--tr);
}

.pg-news-list__item:last-child {
  border-bottom: 0;
}

.pg-news-list__item:hover {
  padding-left: 6px;
}

.pg-news-list__item a {
  display: block;
  color: var(--ink);
}

.pg-news-list__item a:hover {
  color: var(--primary);
}

.pg-news-list__meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.pg-news-list__title {
  font-weight: 700;
  font-size: 16px;
  line-height: 1.55;
  margin-bottom: 6px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.pg-news-list__summary {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.6;
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.pg-news-empty {
  background: var(--surface);
  border: 1px dashed var(--line);
  border-radius: var(--radius-panel);
  padding: 60px 24px;
  text-align: center;
  color: var(--ink-soft);
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pg-news-empty span {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 16px;
}

.pg-cta {
  background:
    linear-gradient(105deg, rgba(9,29,27,.96), rgba(14,35,33,.82)),
    url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
  color: #fff;
  border-radius: 0;
}

.pg-cta__inner {
  border: 1px solid rgba(255,255,255,.14);
  background: linear-gradient(120deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
  border-radius: var(--radius-panel);
  padding: 64px 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}

.pg-cta h2 {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.3;
  color: #fff;
  margin: 0 0 14px;
}

.pg-cta p {
  color: rgba(255,255,255,.78);
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  max-width: 600px;
}

.pg-cta__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  flex: 0 0 auto;
}

.pg-faq__item {
  border-bottom: 1px solid var(--line);
}

.pg-faq__item summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 10px 22px 22px;
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.6;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  transition: background var(--tr);
}

.pg-faq__item summary::-webkit-details-marker {
  display: none;
}

.pg-faq__item summary::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 3px;
  background: transparent;
  border-radius: 4px;
  transition: background var(--tr);
}

.pg-faq__item summary::after {
  content: "+";
  font-size: 28px;
  font-weight: 500;
  color: var(--secondary);
  transition: transform var(--tr);
  line-height: 1;
}

.pg-faq__item[open] summary::after {
  transform: rotate(45deg);
}

.pg-faq__item[open] summary {
  background: rgba(243,244,240,.6);
}

.pg-faq__item[open] summary::before {
  background: var(--primary);
}

.pg-faq__item .pg-faq__answer {
  color: var(--ink-soft);
  padding: 0 22px 24px 22px;
  line-height: 1.9;
  max-width: 820px;
}

.pg-footer {
  background: var(--deep);
  color: rgba(255,255,255,.72);
  padding: 60px 0 26px;
  border-top: 4px solid var(--primary);
}

.pg-footer a {
  color: rgba(255,255,255,.72);
}

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

.pg-footer__logo {
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.pg-footer__logo .pg-logo__icon {
  background: var(--primary);
}

.pg-footer__brand-text {
  font-weight: 800;
  color: #fff;
  font-size: 20px;
  line-height: 1.25;
}

.pg-footer__brand-text small {
  display: block;
  font-weight: 500;
  color: rgba(255,255,255,.5);
  letter-spacing: .12em;
  font-size: 11px;
  margin-top: 4px;
}

.pg-footer__desc {
  font-size: 14px;
  line-height: 1.85;
  max-width: 300px;
}

.pg-footer h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 800;
  margin: 0 0 16px;
  letter-spacing: .03em;
}

.pg-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.pg-footer li {
  padding: 6px 0;
  font-size: 14px;
}

.pg-footer li a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.pg-footer__bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  margin-top: 46px;
  padding-top: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  color: rgba(255,255,255,.45);
  font-size: 13px;
}

@media (max-width: 1023px) {
  .pg-section {
    padding: 72px 0;
  }

  .pg-stat {
    border-left: 0;
    padding: 12px;
  }
}

@media (max-width: 639px) {
  body {
    font-size: 15px;
  }

  .pg-section {
    padding: 56px 0;
  }

  .pg-header__actions .pg-search-form,
  .pg-header__cta-top {
    display: none;
  }

  .pg-header__top {
    padding-top: 12px;
    padding-bottom: 12px;
  }

  .pg-logo__text {
    font-size: 18px;
  }

  .pg-logo__icon {
    width: 38px;
    height: 38px;
  }

  .pg-nav {
    gap: 2px;
  }

  .pg-nav__link {
    padding: 10px 13px;
    font-size: 14px;
  }

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

  .pg-hero__media {
    margin-top: 40px;
  }

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

  .pg-hero__buttons .pg-btn {
    width: 100%;
  }

  .pg-stat__num {
    font-size: 23px;
  }

  .pg-quote-card {
    padding: 32px 24px 28px;
  }

  .pg-cta__inner {
    padding: 30px 22px;
  }

  .pg-cta h2 {
    font-size: 26px;
  }

  .pg-cta__buttons {
    width: 100%;
  }

  .pg-cta__buttons .pg-btn {
    width: 100%;
  }

  .pg-section__head {
    margin-bottom: 30px;
  }

  .pg-section__title {
    font-size: 26px;
  }
}

@media (max-width: 400px) {
  .pg-logo__sub {
    display: none;
  }

  .pg-logo__text {
    font-size: 17px;
  }
}

/* roulang page: article */
:root{
  --paper:#F3F4F0;
  --surface:#FFFFFF;
  --surface-soft:#EAEDE7;
  --ink:#182728;
  --ink-soft:#445553;
  --deep:#0E2321;
  --primary:#D05F2B;
  --primary-hover:#B24A1E;
  --secondary:#2E7D6E;
  --line:#D9DED6;
  --focus:#E29A3B;
  --radius-card:10px;
  --radius-panel:16px;
  --shadow-card:0 1px 2px rgba(14,35,33,.04),0 8px 20px -12px rgba(14,35,33,.14);
  --shadow-hover:0 2px 4px rgba(14,35,33,.06),0 18px 36px -16px rgba(14,35,33,.22);
  --container:1200px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei UI","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--secondary);text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease}
a:hover{color:var(--primary)}
button,input,textarea,select{font-family:inherit}
.grid-container{max-width:var(--container);margin-left:auto;margin-right:auto}

.pg-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 22px;
  border-radius:6px;
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  cursor:pointer;
  transition:background .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease,color .2s ease;
  text-decoration:none;
  white-space:nowrap;
}
.pg-btn:focus-visible{
  outline:2px solid var(--focus);
  outline-offset:2px;
}
.pg-btn--primary{
  background:var(--primary);
  color:#fff;
  box-shadow:0 8px 18px -12px rgba(208,95,43,.6);
}
.pg-btn--primary:hover{
  background:var(--primary-hover);
  color:#fff;
  transform:translateY(-1px);
}
.pg-btn--ghost{
  background:transparent;
  color:var(--ink);
  border-color:var(--line);
}
.pg-btn--ghost:hover{
  background:var(--surface-soft);
  border-color:#c3cac0;
  color:var(--ink);
}
.pg-btn--light{
  background:#fff;
  color:var(--deep);
}
.pg-btn--light:hover{
  background:#f3e9df;
  color:var(--deep);
}

/* Header */
.pg-header{
  background:var(--surface);
  position:relative;
  z-index:60;
}
.pg-header__top{
  background:var(--surface);
  border-bottom:1px solid var(--line);
  padding:12px 0;
}
.pg-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
  color:var(--ink);
}
.pg-logo__icon{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;
  height:42px;
  background:var(--deep);
  border-radius:9px;
  box-shadow:0 6px 16px -10px rgba(14,35,33,.5);
}
.pg-logo__text{
  display:flex;
  align-items:baseline;
  gap:2px;
  font-size:23px;
  font-weight:800;
  letter-spacing:.5px;
  color:var(--ink);
  line-height:1.25;
  flex-wrap:wrap;
}
.pg-logo__text span{
  color:var(--primary);
  font-weight:900;
}
.pg-logo__sub{
  width:100%;
  display:block;
  font-size:10px;
  letter-spacing:1.4px;
  color:#74817e;
  font-weight:600;
  margin-top:1px;
  white-space:nowrap;
}
.pg-header__actions{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:16px;
}
.pg-search-form{
  display:flex;
  align-items:center;
  width:230px;
  height:40px;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:6px;
  padding:0 6px 0 12px;
  transition:border-color .2s ease,box-shadow .2s ease,width .2s ease;
}
.pg-search-form:focus-within{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(210,95,43,.16);
  background:#fff;
}
.pg-search-form input{
  width:100%;
  border:0;
  background:transparent;
  font-size:13px;
  color:var(--ink);
  outline:none;
  padding:0;
}
.pg-search-form button{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  border:0;
  border-radius:5px;
  background:var(--deep);
  color:#fff;
  cursor:pointer;
  flex:0 0 auto;
  transition:background .2s ease;
}
.pg-search-form button:hover{background:var(--primary)}
.pg-header__cta-top{min-height:40px;padding:0 18px;font-size:14px}

/* Nav */
.pg-nav-bar{
  background:var(--deep);
  border-top:1px solid rgba(255,255,255,.06);
  box-shadow:0 3px 12px rgba(14,35,33,.12);
  position:sticky;
  top:0;
  z-index:55;
}
.pg-nav{
  display:flex;
  align-items:center;
  gap:6px;
  overflow-x:auto;
  padding:8px 0;
  scrollbar-width:none;
}
.pg-nav::-webkit-scrollbar{display:none}
.pg-nav__link{
  position:relative;
  display:inline-block;
  padding:10px 16px;
  border-radius:6px;
  color:rgba(255,255,255,.82);
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  line-height:1.2;
  transition:background .2s ease,color .2s ease;
}
.pg-nav__link:hover{
  color:#fff;
  background:rgba(255,255,255,.1);
}
.pg-nav__link.is-active{
  background:var(--primary);
  color:#fff;
}
.pg-nav__link.is-active:hover{
  background:var(--primary);
  color:#fff;
}

/* Breadcrumb / Page lead */
.pg-page-lead{
  background-color:var(--deep);
  background-image:linear-gradient(110deg,rgba(14,35,33,.94),rgba(14,35,33,.82)),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  padding:54px 0 58px;
}
.pg-breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.62);
  margin-bottom:22px;
}
.pg-breadcrumb a{color:rgba(255,255,255,.72)}
.pg-breadcrumb a:hover{color:#fff}
.pg-breadcrumb__sep{color:var(--focus);opacity:.75}
.pg-breadcrumb__item--current{color:#fff;font-weight:600}
.pg-page-lead__label{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-bottom:14px;
  color:var(--focus);
  font-size:12px;
  font-weight:700;
  letter-spacing:1.8px;
  font-family:ui-monospace,SFMono-Regular,Consolas,monospace;
}
.pg-page-lead__label span{
  width:30px;height:1px;background:var(--focus);
}
.pg-page-lead h1{
  margin:0;
  color:#fff;
  font-size:38px;
  line-height:1.3;
  letter-spacing:.5px;
  font-weight:800;
}
.pg-page-lead__sub{
  max-width:680px;
  margin:14px 0 0;
  color:rgba(255,255,255,.72);
  font-size:17px;
  line-height:1.9;
}

/* Article section */
.pg-article-section{
  padding:52px 0 68px;
}
.pg-article-sheet{
  max-width:900px;
  margin:0 auto;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:var(--shadow-card);
  padding:38px 48px 42px;
}
.pg-article-head__tag{
  display:inline-flex;
  align-items:center;
  gap:7px;
  background:rgba(46,125,110,.1);
  color:var(--secondary);
  border-radius:999px;
  padding:5px 13px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.4px;
  margin-bottom:20px;
}
.pg-article-head h1{
  margin:0 0 18px;
  font-size:36px;
  line-height:1.38;
  color:var(--ink);
  font-weight:800;
  letter-spacing:.2px;
}
.pg-article-head__meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px 20px;
  padding-bottom:24px;
  border-bottom:1px solid var(--line);
  font-size:13px;
  color:var(--ink-soft);
}
.pg-article-head__meta-item{
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.pg-article-head__meta-item svg{
  color:var(--secondary);
}
.pg-a-meta-divider{
  width:1px;height:14px;background:var(--line);
}

.pg-article-body{
  padding-top:28px;
  color:var(--ink);
  font-size:17px;
  line-height:1.95;
  overflow-wrap:break-word;
}
.pg-article-body p{
  margin:0 0 1.5em;
}
.pg-article-body h2,
.pg-article-body h3,
.pg-article-body h4{
  margin:2em 0 .75em;
  color:var(--ink);
  line-height:1.4;
  font-weight:800;
}
.pg-article-body h2{
  font-size:26px;
  margin-top:2.2em;
  padding-left:14px;
  border-left:4px solid var(--primary);
}
.pg-article-body h3{font-size:21px}
.pg-article-body h4{font-size:18px}
.pg-article-body img{
  border-radius:10px;
  box-shadow:var(--shadow-card);
  margin:1.6em auto;
}
.pg-article-body ul,
.pg-article-body ol{
  margin:0 0 1.6em;
  padding-left:1.6em;
}
.pg-article-body li{
  margin-bottom:.5em;
}
.pg-article-body blockquote{
  margin:2em 0;
  padding:14px 22px;
  background:var(--surface-soft);
  border-left:4px solid var(--primary);
  border-radius:0 8px 8px 0;
  color:var(--ink-soft);
  font-size:15px;
  line-height:1.9;
}
.pg-article-body table{
  width:100%;
  border-collapse:collapse;
  margin:1.8em 0;
  background:#fff;
  border-radius:8px;
  overflow:hidden;
  font-size:15px;
}
.pg-article-body th{
  background:var(--deep);
  color:#fff;
  text-align:left;
  padding:10px 14px;
  font-weight:600;
}
.pg-article-body td{
  padding:10px 14px;
  border-bottom:1px solid var(--line);
  color:var(--ink);
}
.pg-article-body tr:nth-child(even) td{background:#f5f7f4}
.pg-article-body code{
  background:var(--surface-soft);
  color:#b24a1e;
  border-radius:4px;
  padding:2px 6px;
  font-family:ui-monospace,SFMono-Regular,Consolas,monospace;
  font-size:.9em;
}
.pg-article-body a{
  color:var(--secondary);
  text-decoration:underline;
  text-underline-offset:3px;
}
.pg-article-body a:hover{color:var(--primary)}

.pg-article-end{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:14px;
  margin-top:40px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.pg-article-end .pg-btn{
  min-height:42px;
}

/* Section base */
.pg-section{
  padding:88px 0;
}
.pg-section--soft{
  background:var(--surface-soft);
}
.pg-section-head{
  margin-bottom:38px;
}
.pg-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--primary);
  font-weight:800;
  letter-spacing:1.6px;
  font-family:ui-monospace,SFMono-Regular,Consolas,monospace;
  text-transform:uppercase;
}
.pg-eyebrow:before{
  content:"";
  width:26px;
  height:2px;
  background:var(--primary);
}
.pg-section-head h2{
  margin:10px 0 8px;
  font-size:32px;
  line-height:1.35;
  font-weight:800;
  color:var(--ink);
}
.pg-section-head .pg-section-desc{
  max-width:680px;
  margin:0;
  color:var(--ink-soft);
  font-size:16px;
  line-height:1.8;
}

/* Related cards */
.pg-related-section{
  background:var(--paper);
  border-top:1px solid var(--line);
  padding:68px 0 80px;
}
.pg-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:10px;
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.pg-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-3px);
  border-color:#c5cfc2;
}
.pg-card__media{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/10;
  background:#d4d9d1;
}
.pg-card__media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .35s ease;
}
.pg-card:hover .pg-card__media img{
  transform:scale(1.04);
}
.pg-card__media .pg-card__tag{
  position:absolute;
  left:12px;
  bottom:12px;
  background:rgba(238,246,243,.94);
  color:var(--secondary);
  border-radius:999px;
  padding:5px 12px;
  font-size:13px;
  font-weight:700;
  backdrop-filter:blur(4px);
}
.pg-card__body{
  display:flex;
  flex-direction:column;
  flex:1;
  padding:20px 22px 22px;
}
.pg-card__body h3{
  margin:8px 0 8px;
  font-size:18px;
  line-height:1.5;
  color:var(--ink);
  font-weight:800;
}
.pg-card__body p{
  margin:0 0 18px;
  color:var(--ink-soft);
  font-size:14px;
  line-height:1.75;
  flex:1;
}
.pg-card__link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--secondary);
  font-size:14px;
  font-weight:700;
}
.pg-card__link svg{
  transition:transform .2s ease;
}
.pg-card:hover .pg-card__link{
  color:var(--primary);
}
.pg-card:hover .pg-card__link svg{
  transform:translateX(3px);
}

/* CTA */
.pg-cta-strip{
  background:var(--deep);
  padding:70px 0;
  position:relative;
  overflow:hidden;
}
.pg-cta-strip:before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  opacity:.15;
}
.pg-cta-strip .grid-container{
  position:relative;
  z-index:2;
}
.pg-cta-strip__title{
  color:#fff;
  font-size:28px;
  line-height:1.5;
  margin:0 0 12px;
  font-weight:800;
}
.pg-cta-strip__text{
  color:rgba(255,255,255,.75);
  font-size:15px;
  line-height:1.9;
  margin:0;
}
.pg-cta-form{
  background:var(--surface);
  border-radius:12px;
  padding:24px;
  box-shadow:0 10px 30px rgba(0,0,0,.2);
}
.pg-cta-form label{
  display:block;
  font-size:13px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:6px;
}
.pg-cta-form input[type="text"],
.pg-cta-form input[type="email"],
.pg-cta-form textarea{
  width:100%;
  border:1px solid var(--line);
  border-radius:6px;
  background:var(--surface);
  padding:10px 13px;
  font-size:14px;
  color:var(--ink);
  margin-bottom:14px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.pg-cta-form input:focus,
.pg-cta-form textarea:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(210,95,43,.15);
}
.pg-cta-form textarea{
  min-height:86px;
  resize:vertical;
}
.pg-cta-form .pg-btn{
  width:100%;
}

/* Not found */
.pg-missing-section{
  padding:90px 0 110px;
}
.pg-missing-card{
  max-width:680px;
  margin:0 auto;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:var(--shadow-card);
  text-align:center;
  padding:64px 40px;
}
.pg-missing-icon{
  width:64px;
  height:64px;
  border-radius:18px;
  background:var(--surface-soft);
  display:flex;
  align-items:center;
  justify-content:center;
  margin:0 auto 22px;
  color:var(--primary);
}
.pg-missing-card h1{
  margin:0 0 12px;
  font-size:30px;
  color:var(--ink);
  font-weight:800;
}
.pg-missing-card p{
  color:var(--ink-soft);
  font-size:16px;
  line-height:1.9;
  margin:0 auto 30px;
  max-width:500px;
}
.pg-missing-actions{
  display:flex;
  justify-content:center;
  gap:12px;
  flex-wrap:wrap;
}

/* Footer */
.pg-footer{
  background:var(--deep);
  color:rgba(255,255,255,.72);
  padding:64px 0 0;
  margin-top:0;
}
.pg-footer h4{
  color:#fff;
  font-size:15px;
  font-weight:700;
  margin:0 0 16px;
  letter-spacing:.4px;
}
.pg-footer ul{
  list-style:none;
  margin:0;
  padding:0;
}
.pg-footer ul li{
  margin-bottom:10px;
  font-size:14px;
  color:rgba(255,255,255,.66);
  line-height:1.6;
}
.pg-footer ul a{
  color:rgba(255,255,255,.66);
  font-size:14px;
  transition:color .2s ease;
}
.pg-footer ul a:hover{color:#fff}
.pg-footer__logo{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:18px;
}
.pg-footer__brand-text{
  color:#fff;
  font-size:20px;
  font-weight:800;
  line-height:1.3;
}
.pg-footer__brand-text small{
  display:block;
  font-size:10px;
  color:rgba(255,255,255,.46);
  letter-spacing:1.4px;
  font-weight:600;
  margin-top:4px;
}
.pg-footer__logo .pg-logo__icon{
  background:rgba(255,255,255,.08);
  box-shadow:none;
}
.pg-footer__desc{
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.62);
  margin-bottom:24px;
  max-width:360px;
}
.pg-footer__bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:18px 0 20px;
  margin-top:46px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:8px 24px;
  font-size:13px;
  color:rgba(255,255,255,.42);
}
.pg-footer__bottom a{
  color:rgba(255,255,255,.5);
}
.pg-footer__bottom a:hover{color:#fff}

/* Focus */
a:focus-visible,
button:focus-visible{
  outline:2px solid var(--focus);
  outline-offset:2px;
}

/* Responsive */
@media(max-width:1023px){
  .pg-article-sheet{padding:30px 28px}
  .pg-section{padding:72px 0}
}
@media(max-width:639px){
  .pg-logo__text{font-size:20px}
  .pg-header__top{padding:10px 0}
  .pg-header__actions .pg-search-form{display:none}
  .pg-header__cta-top{padding:0 12px;font-size:12px;min-height:34px}
  .pg-nav{padding:6px 0;gap:4px}
  .pg-nav__link{padding:9px 12px;font-size:14px}
  .pg-page-lead{padding:40px 0 44px}
  .pg-page-lead h1{font-size:29px}
  .pg-page-lead__sub{font-size:15px}
  .pg-article-section{padding:28px 0 48px}
  .pg-article-sheet{padding:22px 18px 30px;border-radius:12px}
  .pg-article-head h1{font-size:26px}
  .pg-article-head__meta{gap:8px 12px;font-size:12px}
  .pg-article-body{font-size:16px;line-height:1.9}
  .pg-article-end{flex-direction:column;align-items:stretch}
  .pg-article-end .pg-btn{width:100%}
  .pg-section{padding:56px 0}
  .pg-section-head h2{font-size:26px}
  .pg-cta-strip{padding:50px 0}
  .pg-cta-strip__title{font-size:24px}
  .pg-cta-form{padding:20px}
  .pg-article-body table{
    display:block;
    overflow-x:auto;
    white-space:nowrap;
  }
  .pg-footer{padding-top:44px}
  .pg-footer__bottom{
    flex-direction:column;
    align-items:flex-start;
    margin-top:32px;
  }
  .pg-missing-card{padding:44px 22px}
}
@media(min-width:640px) and (max-width:1023px){
  .pg-header__cta-top{min-height:38px}
}

/* roulang page: category1 */
:root {
  --paper: #F3F4F0;
  --surface: #FFFFFF;
  --surface-soft: #EAEDE7;
  --ink: #182728;
  --ink-soft: #445553;
  --deep: #0E2321;
  --primary: #D05F2B;
  --primary-hover: #B24A1E;
  --secondary: #2E7D6E;
  --line: #D9DED6;
  --focus: #E29A3B;
  --radius: 10px;
  --radius-lg: 16px;
  --radius-sm: 6px;
  --shadow-sm: 0 1px 2px rgba(14,35,33,.04), 0 8px 20px -12px rgba(14,35,33,.14);
  --shadow-lg: 0 2px 4px rgba(14,35,33,.06), 0 18px 36px -16px rgba(14,35,33,.22);
  --font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Noto Sans SC", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: var(--font-family);
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--secondary);
  text-decoration: none;
  transition: color .18s ease, background .18s ease, border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}
a:hover {
  color: var(--primary);
}
button,
input,
textarea,
select {
  font-family: inherit;
}
.grid-container {
  max-width: 1200px;
  padding-left: 24px;
  padding-right: 24px;
}
@media (max-width: 639px) {
  .grid-container {
    padding-left: 16px;
    padding-right: 16px;
  }
}
/* ===== Buttons ===== */
.pg-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .18s ease;
  white-space: nowrap;
}
.pg-btn--primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.pg-btn--primary:hover,
.pg-btn--primary:focus {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  color: #fff;
  transform: translateY(-1px);
}
.pg-btn--ghost-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,.58);
}
.pg-btn--ghost-light:hover {
  background: rgba(255,255,255,.12);
  color: #fff;
  border-color: rgba(255,255,255,.9);
}
.pg-btn--ghost-dark {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.pg-btn--ghost-dark:hover {
  background: var(--surface-soft);
  color: var(--ink);
}
.pg-btn--small {
  padding: 8px 14px;
  font-size: 14px;
}
/* ===== Header ===== */
.pg-header {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 60;
  background: rgba(255,255,255,.98);
  box-shadow: 0 1px 0 var(--line), 0 10px 28px -24px rgba(14,35,33,.24);
}
.pg-header__top {
  background: #fff;
  border-bottom: 1px solid var(--line);
}
.pg-header__top .grid-x {
  min-height: 74px;
}
.pg-header__actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
}
.pg-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}
.pg-logo__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--deep);
  flex-shrink: 0;
}
.pg-logo__text {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: .5px;
  color: var(--ink);
  white-space: nowrap;
  line-height: 1.2;
}
.pg-logo__text span {
  color: var(--primary);
}
.pg-logo__sub {
  display: block;
  font-size: 10px;
  letter-spacing: .16em;
  color: var(--ink-soft);
  font-weight: 500;
  text-transform: uppercase;
  line-height: 1.4;
}
.pg-search-form {
  position: relative;
  width: 260px;
}
.pg-search-form input {
  width: 100%;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 44px 0 18px;
  font-size: 14px;
  background: var(--paper);
  color: var(--ink);
  outline: none;
  transition: border-color .18s ease, box-shadow .18s ease, background .18s ease;
}
.pg-search-form input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(226,154,59,.28);
  background: var(--surface);
}
.pg-search-form button {
  position: absolute;
  right: 4px;
  top: 4px;
  width: 34px;
  height: 34px;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: var(--ink-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: color .18s ease, background .18s ease;
}
.pg-search-form button:hover {
  background: var(--surface-soft);
  color: var(--primary);
}
.pg-header__cta-top {
  flex-shrink: 0;
}
.pg-nav-bar {
  background: #fff;
}
.pg-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
  min-height: 50px;
}
.pg-nav::-webkit-scrollbar {
  display: none;
}
.pg-nav__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 15px;
  color: var(--ink-soft);
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid transparent;
  background: transparent;
  font-weight: 500;
}
.pg-nav__link:hover {
  color: var(--ink);
  background: var(--surface-soft);
}
.pg-nav__link.is-active {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
}
.pg-nav__link.is-active:hover {
  background: var(--primary-hover);
  color: #fff;
}
@media (max-width: 1023px) {
  .pg-search-form {
    width: 210px;
  }
}
@media (max-width: 639px) {
  .pg-header__top .grid-x {
    min-height: 64px;
  }
  .pg-logo__text {
    font-size: 18px;
  }
  .pg-logo__sub {
    display: none;
  }
  .pg-search-form {
    display: none;
  }
  .pg-header__cta-top {
    padding: 8px 12px;
    font-size: 14px;
  }
  .pg-nav__link {
    padding: 7px 13px;
    font-size: 14px;
  }
}
@media (max-width: 374px) {
  .pg-logo__icon {
    width: 32px;
    height: 32px;
  }
  .pg-logo__text {
    font-size: 16px;
  }
  .pg-header__cta-top {
    font-size: 13px;
    padding: 7px 10px;
  }
}
/* ===== Footer ===== */
.pg-footer {
  background: var(--deep);
  color: rgba(255,255,255,.78);
  padding: 76px 0 36px;
  margin-top: 0;
}
.pg-footer h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 18px;
}
.pg-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.pg-footer ul li {
  margin-bottom: 12px;
  font-size: 14px;
  line-height: 1.6;
}
.pg-footer a {
  color: rgba(255,255,255,.7);
  font-size: 14px;
}
.pg-footer a:hover {
  color: #fff;
}
.pg-footer__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  padding-bottom: 22px;
  border-bottom: 1px solid rgba(255,255,255,.12);
}
.pg-footer__logo .pg-logo__icon {
  background: rgba(255,255,255,.08);
}
.pg-footer__brand-text {
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  line-height: 1.25;
}
.pg-footer__brand-text small {
  display: block;
  font-size: 11px;
  letter-spacing: .14em;
  color: rgba(255,255,255,.55);
  font-weight: 500;
  margin-top: 4px;
}
.pg-footer__desc {
  color: rgba(255,255,255,.62);
  max-width: 460px;
  margin-bottom: 28px;
  font-size: 14px;
}
.pg-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  border-top: 1px solid rgba(255,255,255,.1);
  margin-top: 40px;
  padding-top: 24px;
  font-size: 13px;
  color: rgba(255,255,255,.48);
}
@media (max-width: 639px) {
  .pg-footer {
    padding: 52px 0 28px;
  }
  .pg-footer .cell {
    margin-bottom: 28px;
  }
  .pg-footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    margin-top: 8px;
  }
}
/* ===== Category Hero ===== */
.pg-category-hero {
  position: relative;
  background-image: linear-gradient(105deg, rgba(14,35,33,.97) 0%, rgba(14,35,33,.92) 50%, rgba(14,35,33,.76) 100%), url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  padding: 88px 0 80px;
  color: #fff;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.pg-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-bottom: 26px;
  font-size: 13px;
  color: rgba(255,255,255,.62);
}
.pg-breadcrumb a {
  color: rgba(255,255,255,.7);
}
.pg-breadcrumb a:hover {
  color: #fff;
}
.pg-breadcrumb span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.pg-breadcrumb .sep {
  opacity: .5;
  color: rgba(255,255,255,.45);
}
.pg-kicker {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--focus);
  text-transform: uppercase;
  margin-bottom: 12px;
  font-weight: 600;
}
.pg-category-hero h1 {
  font-size: 46px;
  line-height: 1.2;
  color: #fff;
  font-weight: 800;
  margin-bottom: 18px;
  letter-spacing: .02em;
}
.pg-category-hero__desc {
  max-width: 620px;
  font-size: 17px;
  line-height: 1.85;
  color: rgba(255,255,255,.82);
  margin-bottom: 34px;
}
.pg-category-hero .pg-btn {
  margin-right: 10px;
  margin-bottom: 10px;
}
.pg-category-hero__figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 24px 50px -28px rgba(0,0,0,.6);
  border: 1px solid rgba(255,255,255,.12);
}
.pg-category-hero__figure img {
  width: 100%;
  height: 280px;
  object-fit: cover;
}
@media (max-width: 1023px) {
  .pg-category-hero {
    padding: 64px 0 56px;
  }
  .pg-category-hero .grid-x > .cell:first-child {
    margin-bottom: 32px;
  }
  .pg-category-hero__figure img {
    height: 320px;
  }
}
@media (max-width: 639px) {
  .pg-category-hero {
    padding: 48px 0 40px;
  }
  .pg-category-hero h1 {
    font-size: 34px;
  }
  .pg-category-hero__desc {
    font-size: 15px;
  }
  .pg-category-hero__figure {
    display: none;
  }
  .pg-category-hero .pg-btn {
    width: 100%;
    margin-right: 0;
  }
}
/* ===== Section structure ===== */
.pg-section {
  padding: 88px 0;
}
.pg-section--soft {
  background: var(--surface-soft);
}
.pg-section--white {
  background: var(--surface);
}
.pg-section-head {
  margin-bottom: 44px;
}
.pg-section-head .pg-kicker {
  color: var(--primary);
  margin-bottom: 10px;
}
.pg-section-title {
  font-size: 32px;
  line-height: 1.3;
  margin: 0 0 14px;
  font-weight: 800;
  color: var(--ink);
  position: relative;
  padding-bottom: 14px;
}
.pg-section-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 54px;
  height: 3px;
  background: var(--primary);
  border-radius: 3px;
}
.pg-section-lead {
  color: var(--ink-soft);
  font-size: 16px;
  max-width: 760px;
  margin-top: 10px;
}
@media (max-width: 639px) {
  .pg-section {
    padding: 56px 0;
  }
  .pg-section-head {
    margin-bottom: 30px;
  }
  .pg-section-title {
    font-size: 26px;
  }
}
/* ===== Product cards ===== */
.pg-product-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: box-shadow .22s ease, transform .22s ease, border-color .22s ease;
  position: relative;
}
.pg-product-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
  border-color: rgba(208,95,43,.3);
}
.pg-card-media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius) var(--radius) 0 0;
  aspect-ratio: 16 / 10;
  background: var(--surface-soft);
}
.pg-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .3s ease;
}
.pg-product-card:hover .pg-card-media img {
  transform: scale(1.04);
}
.pg-card-tag {
  position: absolute;
  left: 12px;
  top: 12px;
  z-index: 2;
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  line-height: 1.4;
  background: rgba(255,255,255,.92);
  color: var(--secondary);
  font-weight: 600;
  border: 1px solid var(--line);
  box-shadow: 0 4px 14px rgba(14,35,33,.1);
}
.pg-product-card__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 20px;
}
.pg-model {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: .04em;
  color: var(--primary);
  margin-bottom: 6px;
}
.pg-product-card__body h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 10px;
  line-height: 1.4;
}
.pg-product-card__body h3 a {
  color: var(--ink);
}
.pg-product-card__body h3 a:hover {
  color: var(--primary);
}
.pg-product-card__body > p {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.7;
  margin-bottom: 14px;
  flex: 1;
}
.pg-card-spec-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 10px 0 0;
  border-top: 1px dashed var(--line);
}
.pg-card-spec-list li {
  position: relative;
  padding: 4px 0 4px 17px;
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.55;
}
.pg-card-spec-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 13px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}
.pg-product-card__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: 6px;
}
.pg-text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: 14px;
  color: var(--secondary);
}
.pg-text-link svg {
  transition: transform .18s ease;
}
.pg-text-link:hover svg {
  transform: translateX(3px);
}
.pg-text-link--soft {
  color: var(--ink-soft);
  font-weight: 400;
}
.pg-text-link--soft:hover {
  color: var(--primary);
}
@media (max-width: 1023px) {
  .pg-product-card__body {
    padding: 18px;
  }
  .pg-product-card {
    margin-bottom: 24px;
  }
}
@media (max-width: 639px) {
  .pg-product-card {
    border-radius: var(--radius);
  }
  .pg-card-media {
    aspect-ratio: 16 / 10;
  }
  .pg-product-card__actions {
    flex-wrap: wrap;
  }
}
/* ===== Feature cards ===== */
.pg-feature-list {
  margin-top: 8px;
}
.pg-feature-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
  height: 100%;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .2s ease, transform .2s ease, border-color .2s ease;
}
.pg-feature-item:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
  border-color: rgba(46,125,110,.25);
}
.pg-feature-item__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(46,125,110,.1);
  color: var(--secondary);
  margin-bottom: 20px;
}
.pg-feature-item h3 {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 10px;
  color: var(--ink);
}
.pg-feature-item p {
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.75;
  margin-bottom: 0;
}
@media (max-width: 1023px) {
  .pg-feature-item {
    margin-bottom: 20px;
  }
}
@media (max-width: 639px) {
  .pg-feature-item {
    padding: 22px 18px;
  }
}
/* ===== Spec table ===== */
.pg-table-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-sm);
}
.pg-spec-table {
  width: 100%;
  min-width: 780px;
  border-collapse: collapse;
  font-size: 14px;
  line-height: 1.6;
  margin: 0;
  background: #fff;
}
.pg-spec-table th {
  background: var(--deep);
  color: #fff;
  text-align: left;
  padding: 16px 18px;
  font-weight: 600;
  white-space: nowrap;
  font-size: 14px;
}
.pg-spec-table td {
  padding: 16px 18px;
  border-top: 1px solid var(--line);
  color: var(--ink);
  background: #fff;
  vertical-align: top;
}
.pg-spec-table tbody tr:nth-child(even) td {
  background: #FAFBF8;
}
.pg-spec-table tbody tr:hover td {
  background: #F0F4EF;
}
.pg-spec-table .pg-model {
  color: var(--primary);
}
.pg-spec-note {
  margin-top: 18px;
  font-size: 13px;
  color: var(--ink-soft);
  padding-left: 16px;
  border-left: 3px solid var(--primary);
}
/* ===== Process ===== */
.pg-process-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 24px 24px;
  height: 100%;
  transition: box-shadow .2s ease, transform .2s ease;
}
.pg-process-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}
.pg-process-card__num {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--focus);
  font-weight: 700;
  margin-bottom: 8px;
}
.pg-process-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 10px;
  color: var(--ink);
}
.pg-process-card p {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.7;
  margin-bottom: 0;
}
@media (max-width: 1023px) {
  .pg-process-card {
    margin-bottom: 20px;
  }
}
/* ===== FAQ ===== */
.pg-faq-list {
  max-width: 900px;
}
.pg-faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: border-color .2s ease, box-shadow .2s ease;
}
.pg-faq-item[open] {
  border-color: rgba(208,95,43,.32);
  box-shadow: var(--shadow-lg);
}
.pg-faq-item[open] summary {
  color: var(--primary);
}
.pg-faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 54px 20px 22px;
  position: relative;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.6;
  transition: color .16s ease, background .16s ease;
}
.pg-faq-item summary::-webkit-details-marker {
  display: none;
}
.pg-faq-item summary:hover {
  background: #FAFBF8;
  color: var(--primary);
}
.pg-faq-item summary::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: transparent;
}
.pg-faq-item[open] summary::before {
  background: var(--primary);
}
.pg-faq-item summary::after {
  content: "";
  position: absolute;
  right: 22px;
  top: 50%;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--ink-soft);
  border-bottom: 2px solid var(--ink-soft);
  transform: translateY(-70%) rotate(45deg);
  transition: transform .2s ease;
}
.pg-faq-item[open] summary::after {
  transform: translateY(-30%) rotate(225deg);
  border-color: var(--primary);
}
.pg-faq-item__answer {
  padding: 0 22px 22px 22px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.85;
}
.pg-faq-item__answer p {
  margin-bottom: 10px;
}
.pg-faq-bottom {
  margin-top: 28px;
}
@media (max-width: 639px) {
  .pg-faq-item summary {
    padding: 16px 44px 16px 16px;
    font-size: 15px;
  }
  .pg-faq-item__answer {
    padding: 0 16px 18px 16px;
    font-size: 14px;
  }
}
/* ===== CTA ===== */
.pg-cta-banner {
  background: var(--deep);
  background-image: linear-gradient(115deg, rgba(14,35,33,.97) 0%, rgba(14,35,33,.9) 60%, rgba(46,125,110,.32) 100%);
  border-radius: var(--radius-lg);
  overflow: hidden;
  padding: 58px 60px;
  color: #fff;
  position: relative;
}
.pg-cta-banner h2 {
  font-size: 30px;
  font-weight: 800;
  line-height: 1.36;
  margin: 0 0 16px;
  color: #fff;
}
.pg-cta-banner p {
  color: rgba(255,255,255,.74);
  max-width: 780px;
  margin-bottom: 24px;
  font-size: 15px;
}
.pg-cta-banner .pg-btn {
  margin-right: 10px;
  margin-bottom: 10px;
}
.pg-cta-meta {
  margin-top: 26px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.14);
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  color: rgba(255,255,255,.66);
  font-size: 14px;
  line-height: 1.7;
}
.pg-cta-meta strong {
  color: #fff;
  display: block;
  font-weight: 600;
}
.pg-cta-meta a {
  color: #fff;
}
.pg-cta-meta a:hover {
  color: var(--focus);
}
@media (max-width: 1023px) {
  .pg-cta-banner {
    padding: 42px 36px;
  }
}
@media (max-width: 639px) {
  .pg-cta-banner {
    padding: 34px 22px;
    border-radius: var(--radius);
  }
  .pg-cta-banner h2 {
    font-size: 23px;
  }
  .pg-cta-banner .pg-btn {
    width: 100%;
    margin-right: 0;
  }
}
@media (min-width: 640px) and (max-width: 1023px) {
  .pg-cta-banner .grid-x {
    flex-direction: column;
  }
}

/* roulang page: category2 */
:root{
    --paper:#F3F4F0;--surface:#ffffff;--surface-soft:#EAEDE7;--ink:#182728;--ink-soft:#445553;
    --deep:#0E2321;--primary:#D05F2B;--primary-hover:#B24A1E;--secondary:#2E7D6E;
    --line:#D9DED6;--focus:#E29A3B;--radius:10px;--radius-lg:16px;--radius-sm:6px;
    --shadow-sm:0 1px 2px rgba(14,35,33,.04),0 8px 20px -12px rgba(14,35,33,.14);
    --shadow-md:0 2px 4px rgba(14,35,33,.06),0 18px 36px -16px rgba(14,35,33,.22);
}
*,*::before,*::after{box-sizing:border-box;scroll-behavior:smooth}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei UI","Noto Sans SC",sans-serif;font-size:16px;line-height:1.85}
.grid-container{max-width:1200px;margin:0 auto;padding:0 24px}
.grid-x{display:flex;flex-flow:row wrap;margin:0 -0.625rem}
.cell{flex:0 0 auto;min-height:0;min-width:0;padding:0 .625rem}
img{max-width:100%;height:auto;border:0;display:block}
a{color:var(--secondary);text-decoration:none;transition:color .25s ease,background .25s ease,border-color .25s ease}
a:hover{color:var(--primary)}
ul,ol{margin:0;padding:0;list-style:none}
input,button,textarea{font-family:inherit;font-size:inherit}

/* 按钮组件 */
.pg-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:6px;border:1px solid transparent;font-size:15px;font-weight:600;line-height:1.4;cursor:pointer;transition:all .25s ease;text-align:center}
.pg-btn--primary{background:var(--primary);color:#fff;box-shadow:0 2px 8px -4px rgba(208,95,43,.5)}
.pg-btn--primary:hover{background:var(--primary-hover);color:#fff;transform:translateY(-1px)}
.pg-btn--dark{background:#fff;color:var(--deep)}
.pg-btn--dark:hover{background:var(--surface-soft);color:var(--deep);transform:translateY(-1px)}
.pg-btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.pg-btn--ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.pg-btn--outline{background:#fff;color:var(--ink);border-color:var(--line)}
.pg-btn--outline:hover{background:var(--surface-soft);color:var(--ink);border-color:var(--line)}
.pg-btn:focus-visible{outline:2px solid var(--focus);box-shadow:0 0 0 6px rgba(226,154,59,.2)}
/* Header */
.pg-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.98);box-shadow:0 1px 0 var(--line),0 8px 24px -24px rgba(14,35,33,.2);backdrop-filter:blur(6px)}
.pg-header__top{padding:8px 0 0;border-bottom:1px solid var(--line)}
.pg-logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none!important}
.pg-logo__icon{display:flex;align-items:center;justify-content:center;width:38px;height:38px;background:rgba(208,95,43,.08);border:1px solid rgba(208,95,43,.2);border-radius:8px;flex-shrink:0}
.pg-logo__text{font-size:20px;font-weight:800;color:var(--deep);letter-spacing:1px;display:flex;align-items:baseline;gap:4px}
.pg-logo__text span{color:var(--primary);font-size:24px;font-weight:900}
.pg-logo__sub{display:block;font-size:10px;font-weight:400;letter-spacing:1.5px;color:var(--ink-soft);line-height:1.2;margin-top:0;border-left:1px solid var(--line);padding-left:8px}
.pg-header__actions{display:flex;justify-content:flex-end;align-items:center;gap:16px;padding:6px 0}
.pg-search-form{display:flex;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:6px;overflow:hidden;transition:border-color .2s;max-width:280px;width:100%}
.pg-search-form:focus-within{border-color:var(--primary);outline:2px solid rgba(208,95,43,.15)}
.pg-search-form input{flex:1;min-width:0;border:none;background:transparent;padding:8px 16px;font-size:13px;height:40px;color:var(--ink)}
.pg-search-form input:focus{outline:none}
.pg-search-form button{display:flex;align-items:center;justify-content:center;width:46px;height:40px;background:transparent;border:none;color:var(--secondary);cursor:pointer;transition:color .2s;padding:0}
.pg-search-form button:hover{color:var(--primary)}
.pg-nav-bar{background:var(--surface);border-bottom:1px solid var(--line)}
.pg-nav{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none;padding:0;min-height:54px}
.pg-nav::-webkit-scrollbar{display:none}
.pg-nav__link{flex-shrink:0;display:inline-flex;align-items:center;padding:16px 18px 14px;font-size:15px;font-weight:600;color:var(--ink-soft);text-decoration:none;position:relative;transition:color .2s ease,border-color .2s ease;white-space:nowrap;border-bottom:3px solid transparent}
.pg-nav__link:hover{color:var(--deep);background:rgba(46,125,110,.04)}
.pg-nav__link.is-active{color:var(--primary);border-bottom-color:var(--primary);background:transparent}
.pg-nav__link.is-active::after{content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);width:4px;height:4px;border-radius:50%;background:var(--primary);opacity:0}
/* 内页通用 */
.pg-page-hero{background:var(--deep);color:#fff;position:relative;overflow:hidden}
.pg-page-hero__layers{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center 30%;opacity:.28}
.pg-page-hero__layers::after{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 70% 20%,rgba(46,125,110,.25) 0%,rgba(14,35,33,.4) 50%,rgba(14,35,33,.92) 100%)}
.pg-page-hero .grid-container{position:relative;z-index:2}
.pg-breadcrumb{display:flex;align-items:center;gap:6px;font-size:13px;color:rgba(255,255,255,.55);padding:22px 0 0;flex-wrap:wrap}
.pg-breadcrumb a{color:rgba(255,255,255,.7);text-decoration:none}
.pg-breadcrumb a:hover{color:#fff}
.pg-breadcrumb span{border-left:1px solid rgba(255,255,255,.25);padding-left:8px}
.pg-breadcrumb em{font-style:normal}
.pg-page-hero__content{padding:44px 0 64px;max-width:920px}
.pg-page-hero__tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--focus);text-transform:uppercase;letter-spacing:1.5px;margin-bottom:20px;font-family:ui-monospace,SFMono-Regular,Consolas,monospace}
.pg-page-hero__tag::before{content:"";display:inline-block;width:28px;height:1px;background:var(--focus)}
.pg-page-hero h1{margin:0 0 16px;font-size:40px;line-height:1.3;font-weight:800;letter-spacing:1px}
.pg-page-hero p{margin:0;color:rgba(255,255,255,.8);max-width:760px;font-size:17px;line-height:1.9}
@media(max-width:767px){
    .pg-page-hero h1{font-size:28px;}
    .pg-page-hero__content{padding:28px 0 48px}
}
/* section 基座 */
.pg-section{padding:88px 0}
.pg-section--has-bg,.pg-section--soft{background:var(--surface-soft)}
.pg-section--tint{background:linear-gradient(180deg,var(--paper) 0%,#fff 30%,#fff 70%,var(--paper) 100%)}
.section-eye{display:inline-flex;align-items:center;gap:10px;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:13px;font-weight:600;color:var(--primary);letter-spacing:.08em;margin-bottom:12px}
.section-eye::before{content:"";width:32px;height:1px;background:var(--primary)}
.section-title{font-size:32px;font-weight:800;line-height:1.35;margin:0 0 16px;color:var(--deep);letter-spacing:.5px}
.section-desc{color:var(--ink-soft);font-size:16px;margin:0 0 48px}
.text-center .section-title{font-size:34px}
/* 场景交错图文 */
.pg-alternate-list{display:flex;flex-direction:column;gap:56px;margin:0}
.pg-alternate-item{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:center;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);border-radius:var(--radius-lg);overflow:hidden;transition:box-shadow .35s ease;}
.pg-alternate-item:hover{box-shadow:var(--shadow-md)}
.pg-alternate-item__media{position:relative;overflow:hidden;border-radius:var(--radius-lg) 0 0 var(--radius-lg);aspect-ratio:4/3}
.pg-alternate-item:nth-child(even) .pg-alternate-item__media{order:2;border-radius:0 var(--radius-lg) var(--radius-lg) 0}
.pg-alternate-item__media img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.pg-alternate-item:hover .pg-alternate-item__media img{transform:scale(1.04)}
.pg-alternate-item__media::after{content:"";position:absolute;inset:auto 0 0 0;height:35%;background:linear-gradient(transparent,rgba(14,35,33,.2));}
.pg-alternate-item__code{position:absolute;left:18px;top:18px;background:rgba(14,35,33,.85);color:#fff;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:12px;padding:4px 10px;border-radius:999px;z-index:2;border:1px solid rgba(255,255,255,.25)}
.pg-alternate-item__content{padding:24px 32px 24px 8px}
.pg-alternate-item:nth-child(even) .pg-alternate-item__content{padding:24px 8px 24px 32px}
.pg-alternate-item__content h3{font-size:22px;font-weight:700;color:var(--deep);margin:0 0 10px}
.pg-alternate-item__content .pg-scene-tag{display:block;margin-bottom:12px;color:var(--secondary);font-weight:600;font-size:14px;letter-spacing:.5px;position:relative;padding-left:14px}
.pg-alternate-item__content .pg-scene-tag::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:6px;height:6px;border-radius:50%;background:var(--primary)}
.pg-alternate-item__content p{margin:0 0 20px;color:var(--ink-soft);font-size:15px;line-height:1.9}
.pg-alternate-item__pick{background:var(--surface-soft);padding:16px 18px;border-radius:10px;margin:14px 0 0}
.pg-alternate-item__pick li{display:flex;align-items:baseline;gap:10px;color:var(--ink);font-size:14px;line-height:1.7;padding:3px 0;border:none;background:none}
.pg-alternate-item__pick li:before{content:"—";color:var(--primary);flex-shrink:0}
.pg-scene-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--secondary);border-bottom:2px solid transparent;padding-bottom:2px;text-decoration:none;font-size:14px;margin-top:8px}
.pg-scene-link:hover{color:var(--primary);border-bottom-color:var(--primary)}
/* 适用行业 */
.pg-industry-wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:20px}
.pg-industry-media{text-align:left;padding:0}
/* 卖点数据 */
.pg-data-band{background:var(--deep);position:relative;overflow:hidden}
.pg-data-band::after{content:"";position:absolute;right:-80px;bottom:-160px;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(46,125,110,.25),transparent 65%)}
.pg-data-band::before{content:"";position:absolute;left:-60px;top:-60px;width:240px;height:240px;border:1px solid rgba(255,255,255,.04);border-radius:50%}
.pg-stat-wrap{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;padding:68px 0}
.pg-stat{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:10px;padding:28px 24px;position:relative;transition:background .3s ease}
.pg-stat:hover{background:rgba(255,255,255,.1)}
.pg-stat__num{color:#fff;font-size:48px;font-weight:800;line-height:1.2;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:-1px;display:flex;align-items:flex-end}
.pg-stat__num small{font-size:22px;margin-left:4px;color:var(--focus);font-weight:600}
.pg-stat__label{color:rgba(255,255,255,.65);font-size:14px;margin-top:8px}
.pg-stat__cnt{color:#fff;font-size:44px;line-height:1.1;font-weight:700;font-family:ui-monospace,SFMono-Regular,Consolas,monospace}
.pg-stat__cnt i{font-style:normal;color:var(--focus);font-size:24px}
/* 架构流程 */
.pg-flow-wrap{padding:20px 0 0}
.pg-flow-step{display:grid;grid-template-columns:68px minmax(0,1fr) minmax(0,1fr);gap:6px;margin-bottom:0;position:relative;padding-bottom:0}
.pg-flow-step:not(:last-child)::after{content:"";position:absolute;left:34px;top:64px;bottom:-22px;width:1px;background:var(--line);border-left:1px dashed var(--line)}
.pg-flow-step__num{color:var(--primary);font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-weight:700;font-size:16px;padding-top:10px}
.pg-flow-step__card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px 22px;margin:0 0 32px;transition:box-shadow .3s;border-left:3px solid var(--primary)}
.pg-flow-step__card h3{margin:0 0 10px;font-size:18px;font-weight:700}
.pg-flow-step__card p{margin:0;color:var(--ink-soft);font-size:14px;line-height:1.8}
.pg-flow-list{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
.pg-flow-list li{background:var(--surface-soft);border:1px solid var(--line);border-radius:8px;padding:10px 12px;font-size:12px;color:var(--ink);text-align:center;font-weight:600}
/* 技术对比表 */
.pg-table-wrap{overflow:hidden;background:#fff;border-radius:14px;border:1px solid var(--line);box-shadow:var(--shadow-sm);margin:18px 0 0}
.pg-table table{margin:0;width:100%;border-collapse:collapse;background:#fff}
.pg-table thead th{background:var(--deep);color:#fff;font-size:13px;font-weight:600;padding:14px 16px;text-align:left;letter-spacing:.02em}
.pg-table tbody td{padding:13px 16px;border-bottom:1px solid var(--line);font-size:14px;color:var(--ink)}
.pg-table tbody tr:last-child td{border-bottom:0}
.pg-table tbody tr:hover{background:var(--surface-soft)}
.pg-table .pg-brand-cell{color:var(--primary);font-weight:700}
.pg-table td code,.pg-table td .mono{font-family:ui-monospace,Consolas,monospace;background:rgba(46,125,110,.08);color:var(--secondary);padding:1px 6px;border-radius:4px}
/* FAQ */
.pg-faq-section{background:var(--deep);color:#fff}
.pg-faq-section .section-title{color:#fff}
.pg-faq-section .section-desc{color:rgba(255,255,255,.65)}
.pg-faq-wrap{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.pg-faq-item{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:22px 22px;transition:background .3s}
.pg-faq-item:hover{background:rgba(255,255,255,.09)}
.pg-faq-item h3{font-size:16px;font-weight:700;margin:0 0 12px;color:#fff;display:flex;align-items:baseline;gap:10px}
.pg-faq-item h3::after{content:"";flex:1;max-width:34px;height:1px;background:rgba(255,255,255,.2);align-self:center}
.pg-faq-item p{margin:0;color:rgba(255,255,255,.68);font-size:14px;line-height:1.9}
/* 保障条 */
.pg-assure-band{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface);padding:34px 0}
.pg-assure-wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin:0}
.pg-assure-item{display:flex;gap:14px;align-items:flex-start}
.pg-assure-item svg{flex-shrink:0;margin-top:2px}
.pg-assure-item__title{font-weight:700;font-size:15px;color:var(--deep);margin:0 0 2px}
.pg-assure-item__desc{font-size:13px;color:var(--ink-soft);margin:0;line-height:1.7}
/* 底部CTA */
.pg-cta-band{background:var(--primary);padding:64px 0;position:relative;overflow:hidden}
.pg-cta-band::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px);background-size:48px 48px;opacity:.25}
.pg-cta-panel{display:flex;align-items:center;justify-content:space-between;gap:36px;color:#fff;max-width:1100px;margin:0 auto;padding:0 24px}
.pg-cta-panel h2{margin:0 0 6px;font-size:34px;font-weight:800;line-height:1.3}
.pg-cta-panel p{margin:0;color:rgba(255,255,255,.85)}

/* 版块内页段头 */
.pg-block-head{max-width:820px;margin:0 auto 48px;}
.pg-block-head.text-center{text-align:center;margin-bottom:36px}
/* footer: */
.pg-footer{background:var(--deep);color:rgba(255,255,255,.72);padding-top:64px;font-size:14px}
.pg-footer .cell>h4{color:#fff;font-size:16px;font-weight:700;margin:0 0 14px}
.pg-footer ul li{margin:0 0 9px;padding:0;list-style:none}
.pg-footer a{color:rgba(255,255,255,.6);text-decoration:none;transition:color .25s ease}
.pg-footer a:hover{color:#fff}
.pg-footer__logo{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.pg-footer__brand-text{font-size:19px;font-weight:800;color:#fff;line-height:1.3;display:flex;flex-direction:column}
.pg-footer__brand-text small{font-size:11px;font-weight:400;color:rgba(255,255,255,.45);letter-spacing:1px;margin-top:4px}
.pg-footer__desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.55);max-width:360px;margin:0 0 20px}
.pg-footer__bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0 26px;margin-top:32px;display:flex;justify-content:space-between;gap:20px;color:rgba(255,255,255,.4);font-size:13px}
.pg-footer__bottom a{color:inherit}
/* Foundation覆盖 */
.button,button{font-family:inherit}
input[type="search"],input[type="text"],input[type="email"],textarea{box-shadow:none}
/* 移动端 */
@media (max-width: 1023px) and (min-width: 640px){
    .pg-industry-wrap{grid-template-columns:repeat(2,1fr)}
    .pg-flow-list{grid-template-columns:repeat(3,1fr)}
    .pg-assure-wrap{grid-template-columns:repeat(2,1fr)}
    .pg-stat-wrap{grid-template-columns:repeat(2,1fr)}
}
@media (max-width: 639px){
    .grid-container{padding:0 16px}
    .pg-section{padding:56px 0}
    .section-title{font-size:26px}
    .pg-header__cta-top{display:none}
    .pg-search-form{max-width:190px}
    .pg-alternate-item{grid-template-columns:1fr;gap:0}
    .pg-alternate-item__media,.pg-alternate-item:nth-child(even) .pg-alternate-item__media{order:0;border-radius:var(--radius-lg) var(--radius-lg) 0 0;aspect-ratio:16/10}
    .pg-alternate-item__content,.pg-alternate-item:nth-child(even) .pg-alternate-item__content{padding:24px}
    .pg-industry-wrap{grid-template-columns:1fr}
    .pg-faq-wrap{grid-template-columns:1fr}
    .pg-stat-wrap{grid-template-columns:1fr;padding:48px 0}
    .pg-stat__num{font-size:40px}
    .pg-flow-list{grid-template-columns:repeat(2,1fr)}
    .pg-assure-wrap{grid-template-columns:1fr}
    .pg-cta-panel{flex-direction:column}
    .pg-cta-panel h2{font-size:27px}
    .pg-footer__bottom{flex-direction:column;gap:4px}
    .section-desc{margin-bottom:28px}
    .pg-table table{font-size:12px}
    .pg-footer{padding-top:44px;font-size:13px;padding-bottom:28px}
    /* 表头 */
    .pg-table thead th{font-size:12px;padding:10px}
    .pg-table tbody td{padding:10px;font-size:13px}
}
/* 键盘焦点与辅助 */
a:focus-visible,button:focus-visible,.pg-faq-trigger:focus-visible{outline:2px solid var(--focus); outline-offset:2px}

/* roulang page: category4 */
:root {
            --paper: #F3F4F0;
            --surface: #FFFFFF;
            --surface-soft: #EAEDE7;
            --ink: #182728;
            --ink-soft: #445553;
            --deep: #0E2321;
            --primary: #D05F2B;
            --primary-hover: #B24A1E;
            --secondary: #2E7D6E;
            --line: #D9DED6;
            --focus: #E29A3B;
            --shadow-sm: 0 1px 2px rgba(14,35,33,.04), 0 8px 20px -12px rgba(14,35,33,.14);
            --shadow-hover: 0 2px 4px rgba(14,35,33,.06), 0 18px 36px -16px rgba(14,35,33,.22);
            --radius-card: 10px;
            --radius-panel: 16px;
            --radius-btn: 6px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Noto Sans SC", sans-serif;
            font-size: 16px;
            line-height: 1.85;
            background: var(--paper);
            color: var(--ink);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--focus);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .grid-container {
            max-width: 1200px;
        }

        .pg-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            font-size: 15px;
            font-weight: 600;
            font-family: inherit;
            border-radius: var(--radius-btn);
            border: 1px solid transparent;
            cursor: pointer;
            text-decoration: none;
            transition: all .2s ease;
            line-height: 1.4;
        }

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

        .pg-btn--primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(208, 95, 43, .3);
        }

        .pg-btn--outline {
            background: transparent;
            color: var(--ink);
            border-color: #c4cbc2;
        }

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

        .pg-btn--light {
            background: #fff;
            color: var(--deep);
            border-color: #fff;
        }

        .pg-btn--light:hover {
            background: #e0e5dc;
            color: var(--deep);
            border-color: #e0e5dc;
        }

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

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

        /* Header */
        .pg-header {
            background: #fff;
            border-bottom: 1px solid #e5e9df;
            position: sticky;
            top: 0;
            z-index: 200;
            box-shadow: 0 2px 8px rgba(0, 0, 0, .04);
        }

        .pg-header__top {
            padding-top: 14px;
            padding-bottom: 14px;
        }

        .pg-header__top .grid-x {
            align-items: center;
        }

        .pg-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            white-space: nowrap;
        }

        .pg-logo__icon {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: transparent;
            border-radius: 6px;
        }

        .pg-logo__text {
            font-size: 20px;
            font-weight: 700;
            color: var(--ink);
            letter-spacing: .01em;
            line-height: 1.1;
            display: block;
        }

        .pg-logo__text span {
            color: var(--primary);
            font-size: 22px;
            font-weight: 800;
            margin-left: 1px;
        }

        .pg-logo__sub {
            display: block;
            font-size: 10px;
            font-weight: 500;
            color: #7b8a82;
            letter-spacing: .12em;
            margin-top: 2px;
            white-space: nowrap;
        }

        .pg-header__actions {
            display: flex;
            align-items: center;
            justify-content: flex-end;
            gap: 14px;
        }

        .pg-search-form {
            display: flex;
            align-items: center;
            position: relative;
            width: 260px;
        }

        .pg-search-form input[type="search"] {
            height: 40px;
            width: 100%;
            border: 1px solid var(--line);
            border-radius: 20px;
            padding: 0 40px 0 16px;
            font-size: 14px;
            font-family: inherit;
            background: #fff;
            color: var(--ink);
            transition: border-color .2s ease, box-shadow .2s ease;
            appearance: none;
            -webkit-appearance: none;
        }

        .pg-search-form input[type="search"]:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(208, 95, 43, .14);
        }

        .pg-search-form input[type="search"]::placeholder {
            color: #9aa89f;
        }

        .pg-search-form button {
            position: absolute;
            right: 4px;
            top: 50%;
            transform: translateY(-50%);
            width: 32px;
            height: 32px;
            border: none;
            background: var(--surface-soft);
            border-radius: 50%;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--ink);
            transition: background .2s ease, color .2s ease;
        }

        .pg-search-form button:hover {
            background: var(--primary);
            color: #fff;
        }

        .pg-header__cta-top {
            white-space: nowrap;
            padding: 9px 20px;
        }

        .pg-nav-bar {
            border-top: 1px solid #edf0e9;
            background: #fff;
            padding: 0;
        }

        .pg-nav {
            display: flex;
            align-items: center;
            gap: 0;
            white-space: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            min-height: 42px;
        }

        .pg-nav::-webkit-scrollbar {
            display: none;
        }

        .pg-nav__link {
            display: inline-flex;
            align-items: center;
            padding: 10px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--ink-soft);
            text-decoration: none;
            border-bottom: 2px solid transparent;
            transition: color .2s ease, border-color .2s ease;
            line-height: 1.4;
            white-space: nowrap;
        }

        .pg-nav__link:hover {
            color: var(--primary);
            background: rgba(208, 95, 43, .04);
        }

        .pg-nav__link.is-active {
            color: var(--deep);
            font-weight: 600;
            border-bottom-color: var(--primary);
        }

        /* Mobile header actions */
        .pg-header__mobile-toggle {
            display: none;
        }

        @media screen and (max-width: 900px) {
            .pg-header__top .cell.auto {
                display: none;
            }
            .pg-logo__text {
                font-size: 18px;
            }
        }

        @media screen and (max-width: 520px) {
            .pg-header__top {
                padding-top: 10px;
                padding-bottom: 10px;
            }
            .pg-logo__text {
                font-size: 16px;
            }
            .pg-logo__icon {
                width: 30px;
                height: 30px;
            }
        }

        /* ======= 页面主体 ======= */
        .pg-cat-hero {
            background: var(--deep);
            color: #fff;
            padding: 48px 0 52px;
            position: relative;
            overflow: hidden;
            border-bottom: 4px solid var(--primary);
            background-image: linear-gradient(rgba(14, 35, 33, .92), rgba(14, 35, 33, .98)), url(/assets/images/backpic/back-1.webp);
            background-size: cover;
            background-position: center 30%;
        }

        .pg-cat-hero__crumb {
            font-size: 13px;
            color: rgba(255, 255, 255, .72);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            letter-spacing: .02em;
        }

        .pg-cat-hero__crumb a {
            color: rgba(255, 255, 255, .85);
            text-decoration: none;
            transition: color .2s ease;
        }

        .pg-cat-hero__crumb a:hover {
            color: var(--focus);
        }

        .pg-cat-hero__crumb .sep {
            color: rgba(255, 255, 255, .5);
            margin: 0 3px;
        }

        .pg-cat-hero__code {
            display: inline-block;
            font-family: "SF Mono", ui-monospace, Consolas, "Liberation Mono", monospace;
            font-size: 13px;
            letter-spacing: .18em;
            text-transform: uppercase;
            padding: 5px 14px;
            border: 1px solid rgba(255, 255, 255, .25);
            background: rgba(255, 255, 255, .02);
            border-radius: 36px;
            color: var(--focus);
            margin-bottom: 22px;
            font-weight: 500;
        }

        .pg-cat-hero h1 {
            font-size: 42px;
            line-height: 1.22;
            font-weight: 700;
            color: #fff;
            margin: 0 0 14px;
            letter-spacing: .01em;
        }

        .pg-cat-hero h1 .pg-accent {
            color: var(--focus);
        }

        .pg-cat-hero__lead {
            font-size: 16px;
            line-height: 1.9;
            color: rgba(255, 255, 255, .82);
            max-width: 665px;
            margin: 0;
        }

        .pg-cat-hero__meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 24px;
            font-size: 14px;
            color: rgba(255, 255, 255, .7);
        }

        .pg-cat-hero__meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        @media screen and (max-width: 640px) {
            .pg-cat-hero {
                padding: 36px 0 40px;
            }
            .pg-cat-hero h1 {
                font-size: 30px;
                line-height: 1.28;
            }
            .pg-cat-hero__lead {
                font-size: 15px;
                line-height: 1.7;
            }
        }

        /* Documentation Category bar */
        .pg-doc-toolbar {
            background: #fff;
            border-bottom: 1px solid var(--line);
            padding: 20px 0;
            position: sticky;
            top: 116px;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(14, 35, 33, .05);
        }

        .pg-doc-toolbar__inner {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 14px;
        }

        .pg-doc-toolbar__filter label {
            font-size: 13px;
            font-weight: 600;
            color: var(--ink-soft);
            display: block;
            margin-bottom: 6px;
        }

        .pg-doc-toolbar__filter select {
            height: 42px;
            padding: 0 36px 0 14px;
            border: 1px solid var(--line);
            border-radius: var(--radius-btn);
            background: #fff;
            font-family: inherit;
            font-size: 14px;
            color: var(--ink);
            cursor: pointer;
            transition: border-color .2s ease;
        }

        .pg-doc-toolbar__filter select:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(208, 95, 43, .12);
        }

        .pg-doc-search {
            flex: 1 1 260px;
            position: relative;
        }

        .pg-doc-search input[type="text"] {
            width: 100%;
            height: 42px;
            border: 1px solid var(--line);
            border-radius: var(--radius-btn);
            padding: 0 44px 0 16px;
            font-size: 14px;
            font-family: inherit;
            background: #fff;
            color: var(--ink);
            transition: border-color .2s ease, box-shadow .2s ease;
        }

        .pg-doc-search input[type="text"]:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(208, 95, 43, .12);
        }

        .pg-doc-search button {
            position: absolute;
            right: 4px;
            top: 50%;
            transform: translateY(-50%);
            width: 34px;
            height: 34px;
            border: none;
            background: transparent;
            border-radius: 50%;
            color: var(--ink-soft);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background .2s ease, color .2s ease;
        }

        .pg-doc-search button:hover {
            background: var(--surface-soft);
            color: var(--primary);
        }

        @media screen and (max-width: 1024px) {
            .pg-doc-toolbar {
                top: auto;
                position: static;
            }
            .pg-doc-toolbar__inner {
                gap: 12px;
            }
            .pg-doc-search {
                flex-day: 100% !important;
                flex-basis: 100%;
            }
        }

        /* Style override for the pg-doc-toolbar__inner to allow filter group layout */
        .pg-doc-toolbar__inner {
            flex-wrap: wrap;
        }

        .pg-doc-filter-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: flex-end;
        }

        .pg-doc-filter-group .pg-doc-toolbar__filter + .pg-doc-toolbar__filter {
            margin-left: 0;
        }

        @media screen and (max-width: 640px) {
            .pg-doc-toolbar {
                padding: 14px 0;
            }
            .pg-doc-toolbar__inner {
                flex-direction: column;
                align-items: stretch;
            }
            .pg-doc-search {
                flex-basis: auto;
            }
        }

        /* ===== 资料列表模块 ===== */
        .pg-doc-section {
            padding: 64px 0 40px;
        }

        .pg-section-title {
            margin: 0 0 8px;
            font-size: 30px;
            line-height: 1.3;
            font-weight: 700;
            color: var(--ink);
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .pg-section-title .mono {
            font-family: "SF Mono", ui-monospace, Consolas, monospace;
            font-size: 14px;
            letter-spacing: .1em;
            color: var(--primary);
            font-weight: 600;
        }

        .pg-section-desc {
            font-size: 15px;
            line-height: 1.7;
            color: var(--ink-soft);
            margin-bottom: 28px;
            max-width: 760px;
        }

        .pg-doc-table-wrap {
            background: var(--surface);
            border-radius: 12px;
            border: 1px solid var(--line);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            margin-bottom: 32px;
        }

        .pg-doc-table {
            width: 100%;
            border-collapse: collapse;
            border-spacing: 0;
        }

        .pg-doc-table th {
            font-size: 13px;
            font-weight: 600;
            color: var(--ink-soft);
            text-transform: none;
            letter-spacing: .04em;
            background: var(--surface-soft);
            padding: 14px 16px;
            text-align: left;
            border-bottom: 1px solid var(--line);
            line-height: 1.4;
            white-space: nowrap;
        }

        .pg-doc-table td {
            padding: 14px 16px;
            font-size: 15px;
            border-bottom: 1px solid #e9ece4;
            color: var(--ink);
            vertical-align: middle;
            line-height: 1.5;
        }

        .pg-doc-table tr:last-child td {
            border-bottom: none;
        }

        .pg-doc-table tbody tr {
            transition: background .15s ease;
        }

        .pg-doc-table tbody tr:hover {
            background: #f7f8f2;
        }

        .pg-doc-table .doc-file {
            font-family: "SF Mono", ui-monospace, Consolas, monospace;
            font-size: 13px;
            color: var(--ink-soft);
            background: #f0f3ec;
            padding: 2px 6px;
            border-radius: 4px;
            display: inline-block;
        }

        .pg-doc-table .doc-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 12px;
            background: #e8f1ec;
            color: var(--secondary);
            font-weight: 600;
            white-space: nowrap;
        }

        .pg-doc-table .doc-tag--orange {
            background: rgba(208, 95, 43, .1);
            color: var(--primary);
        }

        .pg-doc-table .doc-tag--gray {
            background: var(--surface-soft);
            color: var(--ink-soft);
        }

        .pg-table-btn {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 6px 14px;
            border-radius: var(--radius-btn);
            font-size: 13px;
            font-weight: 600;
            background: var(--secondary);
            color: #fff;
            text-decoration: none;
            transition: background .2s ease, transform .15s ease;
            border: none;
            cursor: pointer;
        }

        .pg-table-btn:hover {
            background: #1c6356;
            color: #fff;
            transform: translateY(-1px);
        }

        .pg-table-btn svg {
            width: 14px;
            height: 14px;
        }

        @media screen and (max-width: 768px) {
            .pg-doc-table-wrap {
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
            }
            .pg-doc-table {
                min-width: 760px;
            }
            .pg-section-title {
                font-size: 24px;
            }
            .pg-section-title .mono {
                display: none;
            }
        }

        @media screen and (max-width: 640px) {
            .pg-doc-section {
                padding-top: 40px;
            }
        }

        /* 空标签 */
        .pg-empty-state {
            background: var(--surface);
            border: 2px dashed var(--line);
            border-radius: 12px;
            padding: 30px 20px;
            text-align: center;
            margin: 20px 0;
            color: var(--ink-soft);
            font-size: 14px;
        }

        .pg-tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 12px;
        }

        .pg-tag-list .tag-pill {
            font-size: 13px;
            padding: 6px 14px;
            border-radius: 999px;
            background: #f0f2e9;
            border: 1px solid #e1e5da;
            color: var(--ink-soft);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: border-color .2s ease, background .2s ease;
            cursor: pointer;
            text-decoration: none;
        }

        .pg-tag-list .tag-pill:hover {
            border-color: var(--secondary);
            background: #eaf1ed;
        }

        .pg-tag-list .tag-pill svg {
            width: 15px;
            height: 15px;
            opacity: .6;
        }

        /* 帮助/指南卡片 */
        .pg-guide-strip {
            background: #fff;
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }

        .pg-guide-grid {
            display: grid;
            grid-template-columns: repeat(1, 1fr);
            gap: 20px;
            padding: 32px 0;
        }

        @media (min-width: 640px) {
            .pg-guide-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .pg-guide-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        .pg-guide-card {
            padding: 20px 22px;
            border: 1px solid var(--line);
            border-radius: 12px;
            background: #fff;
            display: flex;
            gap: 16px;
            align-items: flex-start;
            transition: border-color .2s ease, box-shadow .2s ease;
        }

        .pg-guide-card:hover {
            border-color: #b3c0b2;
            box-shadow: 0 8px 24px rgba(14, 35, 33, .08);
        }

        .pg-guide-card__icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: #f0f3e9;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .pg-guide-card__icon svg {
            width: 22px;
            height: 22px;
            stroke: var(--secondary);
        }

        .pg-guide-card__content {
            flex: 1;
        }

        .pg-guide-card__content h3 {
            font-size: 16px;
            font-weight: 600;
            margin: 0 0 5px;
            color: var(--ink);
        }

        .pg-guide-card__content p {
            font-size: 13px;
            color: var(--ink-soft);
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .pg-guide-card__content a {
            font-size: 13px;
            font-weight: 600;
            color: var(--secondary);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .pg-guide-card__content a:hover {
            color: var(--primary);
        }

        /* 最新资料/更新时间列表 */
        .pg-latest-docs {
            padding: 48px 0 60px;
        }

        .pg-doc-list {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .pg-doc-row {
            background: #fff;
            border-radius: 8px;
            padding: 16px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            border-left: 3px solid transparent;
            transition: border-color .2s ease, box-shadow .2s ease;
        }

        .pg-doc-row:hover {
            border-left-color: var(--primary);
            box-shadow: 0 2px 10px rgba(14, 35, 33, .03);
        }

        .pg-doc-row__main {
            display: flex;
            gap: 14px;
            align-items: center;
            overflow: hidden;
            min-width: 0;
        }

        .pg-doc-row__badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: #f3e4d8;
            border-radius: 8px;
            flex-shrink: 0;
        }

        .pg-doc-row__badge svg {
            width: 20px;
            height: 20px;
            stroke: var(--primary);
        }

        .pg-doc-row__content {
            overflow: hidden;
        }

        .pg-doc-row__content h4 {
            font-size: 15px;
            font-weight: 600;
            margin: 0 0 2px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .pg-doc-row__content p {
            font-size: 13px;
            color: var(--ink-soft);
            margin: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .pg-doc-row__meta {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-shrink: 0;
            color: var(--ink-soft);
            font-size: 13px;
        }

        .pg-doc-row__meta .time {
            display: inline-flex;
            align-items: center;
            gap: 3px;
            white-space: nowrap;
        }

        @media screen and (max-width: 640px) {
            .pg-doc-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .pg-doc-row__meta {
                flex-wrap: wrap;
                gap: 8px;
            }
            .pg-doc-row__content p {
                white-space: normal;
            }
        }

        /* stats strip */
        .pg-stats-strip {
            background: var(--surface-soft);
            padding: 32px 0;
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }

        .pg-stats-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        @media (min-width: 640px) {
            .pg-stats-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        .pg-stat-item {
            text-align: left;
        }

        .pg-stat-item__num {
            font-size: 30px;
            font-weight: 700;
            color: var(--deep);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .pg-stat-item__label {
            font-size: 13px;
            color: var(--ink-soft);
            line-height: 1.5;
        }

        /* FAQ Section */
        .pg-faq-section {
            padding: 64px 0;
        }

        .pg-faq-section .container {
            max-width: 780px;
            margin: 0 auto;
        }

        .pg-faq-heading {
            text-align: center;
            margin-bottom: 32px;
        }

        .pg-faq-heading .mono {
            font-size: 13px;
            color: var(--primary);
            font-family: ui-monospace, Consolas, monospace;
            letter-spacing: .1em;
            display: block;
            margin-bottom: 10px;
        }

        .pg-faq-heading h2 {
            font-size: 30px;
            font-weight: 700;
            margin: 0;
            color: var(--ink);
            line-height: 1.3;
        }

        .pg-faq-item {
            background: #fff;
            border-radius: 10px;
            border: 1px solid var(--line);
            margin-bottom: 10px;
            overflow: hidden;
            transition: border-color .2s ease;
        }

        .pg-faq-item:hover {
            border-color: #bdd0c2;
        }

        .pg-faq-item details {
            padding: 0;
        }

        .pg-faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 20px 22px;
            cursor: pointer;
            list-style: none;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            background: #fff;
            border-radius: 10px;
            transition: background .2s ease;
            position: relative;
        }

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

        .pg-faq-item summary:hover {
            background: #fafaf6;
        }

        .pg-faq-item summary .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--surface-soft);
            color: var(--ink);
            transition: transform .2s ease, background .2s ease, color .2s ease;
        }

        .pg-faq-item summary .faq-icon svg {
            width: 14px;
            height: 14px;
        }

        .pg-faq-item details[open] summary .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .pg-faq-item details[open] summary {
            border-bottom: 1px solid #e9f0e8;
        }

        .pg-faq-item .faq-answer {
            padding: 0 22px 20px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--ink-soft);
            border-left: 3px solid transparent;
            transition: border-color .3s ease;
        }

        .pg-faq-item details[open] .faq-answer {
            border-left-color: var(--primary);
            padding-top: 14px;
        }

        .pg-faq-btn-wrap {
            display: flex;
            justify-content: center;
            margin-top: 28px;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* CTA */
        .pg-cta-section {
            background: var(--deep);
            padding: 56px 0;
            color: #fff;
            background-image: linear-gradient(120deg, rgba(14,35,33,.98) 40%, rgba(14,35,33,.82)), url(/assets/images/backpic/back-2.png);
            background-size: cover;
            background-position: center;
        }

        .pg-cta-title {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.35;
            margin: 0 0 14px;
        }

        .pg-cta-desc {
            font-size: 15px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .85);
            max-width: 580px;
            margin-bottom: 0;
        }

        .pg-cta-btns {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 22px;
        }

        @media screen and (min-width: 640px) {
            .pg-cta-panel {
                display: flex;
                justify-content: space-between;
                align-items: flex-start;
                gap: 36px;
            }
            .pg-cta-btns {
                margin-top: 0;
                justify-content: flex-end;
                min-width: 250px;
            }
        }

        @media (max-width: 768px) {
            .pg-cta-title {
                font-size: 24px;
            }
        }

        /* Contact section */
        .pg-contact-section {
            background: #fff;
            padding: 64px 0;
        }

        .pg-form-panel {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-panel);
            box-shadow: var(--shadow-sm);
            padding: 36px 28px;
        }

        .pg-form-label {
            height: auto;
            padding-left: 0;
            font-size: 14px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 8px;
        }

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

        .input-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .input-group .pg-input,
        .input-group textarea,
        .input-group select {
            width: 100%;
            height: 46px;
            border: 1px solid var(--line);
            border-radius: 8px;
            padding: 0 14px;
            font-family: inherit;
            font-size: 15px;
            background: #fff;
            color: var(--ink);
            transition: border-color .2s ease, box-shadow .2s ease;
            -webkit-appearance: none;
            appearance: none;
        }

        .input-group textarea {
            height: auto;
            min-height: 108px;
            padding: 12px 14px;
            resize: vertical;
            line-height: 1.6;
        }

        .input-group .pg-input:focus,
        .input-group textarea:focus,
        .input-group select:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(208, 95, 43, .15);
        }

        .input-group .pg-input::placeholder,
        .input-group textarea::placeholder {
            color: #a3ada6;
        }

        .pg-required {
            color: var(--primary);
        }

        /* Footer */
        .pg-footer {
            background: var(--deep);
            color: #b7ccc3;
            padding: 56px 0 0;
            font-size: 14px;
            line-height: 1.7;
        }

        .pg-footer a {
            color: #b7ccc3;
            text-decoration: none;
            transition: color .2s ease;
        }

        .pg-footer a:hover {
            color: #fff;
            text-decoration: none;
        }

        .pg-footer__logo {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 18px;
        }

        .pg-footer__brand-text {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
            letter-spacing: .02em;
        }

        .pg-footer__brand-text small {
            display: block;
            font-size: 10px;
            font-weight: 400;
            letter-spacing: .06em;
            color: #9ab3a5;
            margin-top: 3px;
        }

        .pg-footer__desc {
            color: #9ab3a5;
            line-height: 1.8;
            font-size: 14px;
            margin-bottom: 24px;
            max-width: 440px;
        }

        .pg-footer h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .pg-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .pg-footer ul li {
            margin-bottom: 8px;
            line-height: 1.6;
        }

        .pg-footer__bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            margin-top: 36px;
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 8px;
            font-size: 13px;
            color: #809e91;
            line-height: 1.5;
        }

        @media screen and (max-width: 640px) {
            .pg-footer .grid-container .grid-x .cell {
                margin-bottom: 24px;
            }
            .pg-footer__bottom {
                flex-direction: column;
                gap: 6px;
                font-size: 12px;
            }
        }

        /* Utility override Foundation */
        .grid-container {
            padding-left: 1.2rem;
            padding-right: 1.2rem;
        }

        .grid-margin-x {
            margin-left: -0.6rem;
            margin-right: -0.6rem;
        }

        .grid-margin-x > .cell {
            margin-left: 0.6rem;
            margin-right: 0.6rem;
        }

        @media screen and (max-width: 900px) {
            .lg-hide-ph {
                display: none !important;
            }
            .pg-header__actions {
                display: none;
            }
            .pg-nav-bar {
                overflow-x: auto;
            }
            .pg-nav {
                -webkit-overflow-scrolling: touch;
            }
        }

        @media screen and (max-width: 640px) {
            .cell.medium-8,
            .grid-x > .cell {
                padding-left: 0.2rem;
                padding-right: 0.2rem;
            }
            .pg-doc-filter-group {
                width: 100%;
            }
            .pg-doc-filter-group .cell {
                margin-bottom: 0;
            }
        }

        @media screen and (max-width: 900px) {
            .pg-doc-toolbar__filter {
                flex: 1 1;
            }
            .pg-doc-toolbar__filter select {
                width: 100%;
            }
            .pg-doc-filter-group {
                display: grid;
                grid-template-columns: 1fr 1fr;
                width: 100%;
                gap: 10px;
            }
        }

        @media screen and (max-width: 520px) {
            .pg-doc-filter-group {
                grid-template-columns: 1fr;
            }
            .pg-logo__text small {
                display: none;
            }
        }

        .pg-logo__icon svg {
            display: block;
        }

        .pg-logo:hover {
            text-decoration: none;
        }

        @media screen and (max-width: 1024px) and (min-width: 901px) {
            .pg-search-form {
                width: 190px;
            }
            .pg-header__cta-top {
                padding: 8px 14px;
                font-size: 14px;
            }
        }

/* roulang page: category3 */
:root {
  --paper: #F3F4F0;
  --surface: #FFFFFF;
  --surface-soft: #EAEDE7;
  --ink: #182728;
  --ink-soft: #445553;
  --deep: #0E2321;
  --primary: #D05F2B;
  --primary-hover: #B24A1E;
  --secondary: #2E7D6E;
  --line: #D9DED6;
  --focus: #E29A3B;
  --shadow-card: 0 1px 2px rgba(14,35,33,.04), 0 8px 20px -12px rgba(14,35,33,.14);
  --shadow-hover: 0 2px 4px rgba(14,35,33,.06), 0 18px 36px -16px rgba(14,35,33,.22);
  --radius-card: 10px;
  --radius-panel: 16px;
  --font-main: "PingFang SC","Hiragino Sans GB","Microsoft YaHei UI","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-main);font-size:17px;line-height:1.85;text-rendering:optimizeLegibility;}
h1,h2,h3,h4{line-height:1.3;margin:0;font-weight:700;color:var(--ink);}
p{margin:0;}
a{color:var(--secondary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary);}
img{display:block;max-width:100%;}
button,input,textarea{font-family:inherit;color:inherit;}
.grid-container{max-width:1200px;}
.pg-section{padding:88px 0;}
.pg-section--paper{background:var(--paper);}
.pg-section--surface{background:var(--surface);}
.pg-section__head{max-width:840px;margin-bottom:44px;}
.pg-eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",monospace;font-size:13px;letter-spacing:.06em;color:var(--primary);text-transform:uppercase;}
.pg-eyebrow::before{content:"";width:26px;height:1px;background:var(--primary);display:inline-block;}
.pg-eyebrow--light{color:rgba(255,255,255,.86);}
.pg-eyebrow--light::before{background:var(--focus);}
.pg-section__head h2{font-size:34px;margin-top:12px;letter-spacing:-.01em;}
.pg-section__head p{margin-top:14px;color:var(--ink-soft);font-size:17px;max-width:760px;}
.pg-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:6px;font-size:15px;font-weight:600;letter-spacing:.02em;transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .15s ease;white-space:nowrap;}
.pg-btn:focus-visible{outline:2px solid var(--focus);outline-offset:3px;}
.pg-btn--primary{background:var(--primary);color:#fff;border:1px solid var(--primary);box-shadow:0 1px 2px rgba(14,35,33,.16);}
.pg-btn--primary:hover{background:var(--primary-hover);border-color:var(--primary-hover);color:#fff;transform:translateY(-1px);}
.pg-btn--outline{background:transparent;color:var(--ink);border:1px solid #BCC6BE;}
.pg-btn--outline:hover{background:var(--surface-soft);border-color:#9CACA2;color:var(--ink);}
.pg-btn--light{background:#fff;color:var(--deep);border:1px solid #fff;}
.pg-btn--light:hover{background:#F0F2ED;color:var(--deep);transform:translateY(-1px);}
.pg-btn--line-light{background:transparent;color:rgba(255,255,255,.88);border:1px solid rgba(255,255,255,.45);}
.pg-btn--line-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.8);}

/* header */
.pg-header{position:sticky;top:0;z-index:60;background:var(--paper);box-shadow:0 1px 0 rgba(14,35,33,.06);}
.pg-header .grid-container{max-width:1200px;}
.pg-header__top{padding:14px 0;background:var(--paper);}
.pg-header__actions{display:flex;justify-content:flex-end;align-items:center;gap:16px;}
.pg-logo{display:inline-flex;align-items:center;gap:10px;line-height:1.2;}
.pg-logo__icon{width:44px;height:44px;background:var(--deep);border-radius:10px;display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;box-shadow:inset 0 0 0 1px rgba(255,255,255,.08);}
.pg-logo__text{font-size:21px;font-weight:800;color:var(--ink);letter-spacing:.01em;display:flex;align-items:baseline;gap:2px;}
.pg-logo__text span{color:var(--primary);font-size:24px;font-weight:900;}
.pg-logo__sub{display:block;color:var(--ink-soft);font-size:10px;font-weight:600;letter-spacing:.18em;margin-top:2px;}
.pg-search-form{width:min(260px,28vw);height:42px;border:1px solid var(--line);border-radius:999px;background:var(--surface);display:flex;align-items:center;padding:0 5px 0 16px;gap:8px;transition:border-color .2s ease,box-shadow .2s ease;}
.pg-search-form:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(208,95,43,.13);}
.pg-search-form input{flex:1;border:0;background:transparent;height:30px;font-size:14px;color:var(--ink);outline:0;margin:0;box-shadow:none;}
.pg-search-form input::placeholder{color:#88948E;}
.pg-search-form button{width:32px;height:32px;border-radius:50%;border:0;background:var(--deep);color:#fff;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:background .2s ease;}
.pg-search-form button:hover{background:var(--primary);}
.pg-header__cta-top{height:42px;padding:0 20px;font-size:14px;}
.pg-nav-bar{border-top:1px solid var(--line);background:var(--paper);}
.pg-nav{display:flex;align-items:center;gap:10px;overflow-x:auto;scrollbar-width:none;padding:8px 0 12px;}
.pg-nav::-webkit-scrollbar{display:none;}
.pg-nav__link{flex:0 0 auto;padding:9px 18px;border-radius:999px;font-size:15px;font-weight:600;color:var(--ink);border:1px solid transparent;transition:background .2s,border-color .2s,color .2s;}
.pg-nav__link:hover{background:var(--surface-soft);color:var(--ink);}
.pg-nav__link.is-active{background:var(--primary);color:#fff;border-color:var(--primary);}
.pg-nav__link:focus-visible{outline:2px solid var(--focus);outline-offset:2px;}

/* page hero */
.pg-cat-hero{background:linear-gradient(90deg,rgba(14,35,33,.92) 0%,rgba(14,35,33,.82) 55%,rgba(14,35,33,.72)),url('/assets/images/backpic/back-2.png') center/cover;color:#fff;padding:66px 0 72px;}
.pg-crumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;color:rgba(255,255,255,.66);font-size:13px;margin-bottom:22px;}
.pg-crumb a{color:rgba(255,255,255,.85);}
.pg-crumb a:hover{color:#fff;}
.pg-crumb .is-divider{width:14px;height:1px;background:rgba(255,255,255,.4);}
.pg-cat-hero h1{color:#fff;font-size:46px;letter-spacing:-.01em;margin:8px 0 16px;line-height:1.2;}
.pg-cat-hero__lead{color:rgba(255,255,255,.88);font-size:17px;max-width:720px;line-height:1.9;}
.pg-cat-hero__meta{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px;}
.pg-chip{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;background:rgba(46,125,110,.14);color:var(--secondary);font-size:12px;font-weight:600;}
.pg-chip--light{background:rgba(255,255,255,.12);color:rgba(255,255,255,.92);}

/* key capabilities */
.pg-capability{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:28px 22px 24px;height:100%;box-shadow:var(--shadow-card);transition:box-shadow .25s ease,transform .25s ease;}
.pg-capability:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);}
.pg-capability__icon{width:48px;height:48px;border-radius:10px;color:var(--primary);background:rgba(208,95,43,.10);display:flex;align-items:center;justify-content:center;margin-bottom:16px;}
.pg-capability h3{font-size:18px;margin-bottom:6px;}
.pg-capability p{color:var(--ink-soft);font-size:14px;line-height:1.7;}

/* bento */
.pg-bento{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-auto-rows:minmax(180px,min-content);gap:24px;}
.pg-bento-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-panel);overflow:hidden;box-shadow:var(--shadow-card);transition:box-shadow .25s ease,transform .25s ease;display:flex;flex-direction:column;}
.pg-bento-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.pg-bento-card--large{grid-column:1;grid-row:span 2;}
.pg-bento-card--md-a{grid-column:2;grid-row:1;}
.pg-bento-card--md-b{grid-column:2;grid-row:2;}
.pg-bento-card--sm-a{grid-column:1;grid-row:3;}
.pg-bento-card--sm-b{grid-column:2;grid-row:3;}
.pg-bento-card__media{position:relative;overflow:hidden;background:var(--surface-soft);}
.pg-bento-card--large .pg-bento-card__media img{width:100%;height:230px;object-fit:cover;}
.pg-bento-card--md-a .pg-bento-card__media img,.pg-bento-card--md-b .pg-bento-card__media img{width:100%;height:130px;object-fit:cover;}
.pg-bento-card__media img{transition:transform .3s ease;}
.pg-bento-card:hover .pg-bento-card__media img{transform:scale(1.03);}
.pg-bento-card__body{padding:24px;display:flex;flex-direction:column;gap:8px;flex:1;}
.pg-bento-card--compact .pg-bento-card__body{padding:22px;}
.pg-bento-card__body h3{font-size:21px;margin-top:2px;}
.pg-bento-card__body p{color:var(--ink-soft);font-size:14px;line-height:1.75;}
.pg-bento-card__list{list-style:none;margin:6px 0 4px;padding:0;display:flex;flex-direction:column;gap:7px;}
.pg-bento-card__list li{display:flex;align-items:flex-start;gap:8px;color:var(--ink-soft);font-size:13px;}
.pg-bento-card__list li::before{content:'';width:5px;height:5px;border-radius:50%;background:var(--secondary);flex:0 0 auto;margin-top:8px;}
.pg-bento-card__link{margin-top:auto;font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;}
.pg-bento-card__link:hover{color:var(--primary-hover);}
.pg-bento-card__link svg{transition:transform .2s;}
.pg-bento-card__link:hover svg{transform:translateX(3px);}

/* data flow */
.pg-flow{background:var(--deep);color:rgba(255,255,255,.78);padding:88px 0;}
.pg-flow .pg-section__head h2{color:#fff;}
.pg-flow__item{height:100%;background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.13);border-radius:var(--radius-panel);padding:28px 24px;transition:background .25s ease,border-color .25s ease;}
.pg-flow__item:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.24);}
.pg-flow__index{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:13px;color:var(--focus);letter-spacing:.08em;display:block;margin-bottom:16px;}
.pg-flow__item h3{color:#fff;font-size:19px;margin-bottom:10px;}
.pg-flow__item p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.72);}
.pg-flow__tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.pg-flow__tags span{display:inline-flex;height:24px;padding:0 10px;align-items:center;border-radius:999px;background:rgba(255,255,255,.1);color:rgba(255,255,255,.82);font-size:12px;border:1px solid rgba(255,255,255,.12);}

/* process */
.pg-process{background:var(--paper);}
.pg-process__card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:28px 24px;height:100%;position:relative;box-shadow:var(--shadow-card);transition:box-shadow .25s ease,transform .25s ease;}
.pg-process__card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);}
.pg-process__num{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--secondary);font-size:24px;font-weight:700;display:block;margin-bottom:14px;}
.pg-process__card h3{font-size:18px;margin-bottom:8px;}
.pg-process__card p{color:var(--ink-soft);font-size:14px;line-height:1.75;}

/* faq */
.pg-faq{background:var(--surface);}
.pg-faq__item{border-top:1px solid var(--line);}
.pg-faq__item:last-child{border-bottom:1px solid var(--line);}
.pg-faq summary{list-style:none;cursor:pointer;padding:22px 48px 22px 0;position:relative;display:flex;align-items:center;gap:14px;font-size:17px;font-weight:600;color:var(--ink);}
.pg-faq summary::-webkit-details-marker{display:none;}
.pg-faq summary:hover{color:var(--primary);}
.pg-faq summary .pg-faq__plus{position:absolute;right:4px;top:50%;transform:translateY(-50%);width:34px;height:34px;border-radius:50%;background:var(--surface-soft);display:flex;align-items:center;justify-content:center;color:var(--secondary);transition:background .25s,transform .25s,color .25s;}
.pg-faq details[open] > summary .pg-faq__plus{transform:translateY(-50%) rotate(45deg);background:var(--primary);color:#fff;}
.pg-faq__answer{padding:0 32px 26px 29px;color:var(--ink-soft);font-size:15px;line-height:1.9;border-left:2px solid var(--primary);margin-left:6px;}
.pg-faq__answer p{margin-bottom:10px;}
.pg-faq__answer p:last-child{margin-bottom:0;}

/* contact cta */
.pg-contact{background:linear-gradient(105deg,var(--deep) 0%,#123430 60%,#142E2B 100%);color:#fff;padding:70px 0;scroll-margin-top:120px;}
.pg-contact .pg-eyebrow{color:var(--focus);}
.pg-contact h2{color:#fff;font-size:32px;max-width:720px;margin:12px 0 16px;}
.pg-contact p{color:rgba(255,255,255,.78);font-size:16px;max-width:760px;line-height:1.85;}
.pg-contact__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.pg-contact__list{list-style:none;padding:0;margin:18px 0 0;display:flex;flex-direction:column;gap:8px;font-size:14px;color:rgba(255,255,255,.82);}
.pg-contact__list li{display:flex;gap:10px;align-items:flex-start;}

/* footer */
.pg-footer{background:var(--deep);color:rgba(255,255,255,.78);padding:72px 0 0;font-size:14px;line-height:1.8;}
.pg-footer .grid-container{max-width:1200px;}
.pg-footer__logo{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.pg-footer__brand-text{color:#fff;font-size:18px;font-weight:700;line-height:1.3;}
.pg-footer__brand-text small{display:block;color:rgba(255,255,255,.5);font-size:10px;letter-spacing:.18em;font-weight:600;margin-top:3px;}
.pg-footer__desc{color:rgba(255,255,255,.65);font-size:13px;line-height:1.85;max-width:340px;margin:0;}
.pg-footer h4{color:#fff;font-size:16px;font-weight:600;margin:0 0 12px;}
.pg-footer ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px;color:rgba(255,255,255,.6);}
.pg-footer a{color:rgba(255,255,255,.72);}
.pg-footer a:hover{color:#fff;}
.pg-footer__bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;justify-content:space-between;gap:12px;color:rgba(255,255,255,.5);font-size:13px;flex-wrap:wrap;}

@media (max-width: 1023px){
  .pg-cat-hero{padding:54px 0 62px;}
  .pg-cat-hero h1{font-size:40px;}
  .pg-flow,.pg-section{padding:72px 0;}
  .pg-bento{gap:20px;}
}
@media (max-width: 767px){
  .pg-header__top{padding:10px 0;}
  .pg-logo__text{font-size:17px;}
  .pg-logo__text span{font-size:20px;}
  .pg-logo__sub{font-size:9px;letter-spacing:.06em;}
  .pg-search-form{display:none;}
  .pg-header__cta-top{display:none;}
  .pg-nav__link{font-size:14px;padding:8px 14px;}
  .pg-cat-hero{padding:48px 0 56px;}
  .pg-cat-hero h1{font-size:32px;}
  .pg-cat-hero__lead{font-size:16px;}
  .pg-eyebrow{font-size:12px;}
  .pg-section,.pg-flow{padding:56px 0;}
  .pg-section__head h2,.pg-contact h2{font-size:26px;}
  .pg-bento{grid-template-columns:1fr;}
  .pg-bento-card--large{grid-column:auto;grid-row:auto;}
  .pg-bento-card--md-a,.pg-bento-card--md-b,.pg-bento-card--sm-a,.pg-bento-card--sm-b{grid-column:auto;grid-row:auto;}
  .pg-bento-card--large .pg-bento-card__media img{height:190px;}
  .pg-bento-card--md-a .pg-bento-card__media img,.pg-bento-card--md-b .pg-bento-card__media img{height:160px;}
  .pg-contact{padding:54px 0;}
  .pg-contact__actions{flex-direction:column;align-items:stretch;}
}