/* roulang page: index */
:root {
  --pine-deep: #0B221E;
  --pine: #143B32;
  --pine-medium: #1F5548;
  --pine-mist: #E4ECE8;
  --brass: #B68B55;
  --brass-light: #D3B080;
  --sand: #F5F0E6;
  --cream: #FBF8F1;
  --line: #E3DCCE;
  --text-main: #22312C;
  --text-sub: #5E716A;
  --clay: #C05B3C;
  --font-title: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--sand);
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color .25s var(--ease);
}

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

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 48px);
}

.section-pad {
  padding-top: clamp(4rem, 9vw, 7rem);
  padding-bottom: clamp(4rem, 9vw, 7rem);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-size: .8125rem;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--brass);
  font-weight: 600;
  margin-bottom: 1.1rem;
}

.eyebrow::before {
  content: "";
  width: 30px;
  height: 1px;
  background: var(--brass);
}

.section-title {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: clamp(1.75rem, 2.8vw, 2.5rem);
  line-height: 1.25;
  color: var(--pine-deep);
  margin: 0 0 1rem;
  letter-spacing: .02em;
}

.section-lead {
  font-size: 1.0625rem;
  color: var(--text-sub);
  max-width: 760px;
  line-height: 1.95;
}

/* ========== Header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(11, 34, 30, .86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(182, 139, 85, .32);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  min-height: 86px;
}

.brand {
  display: flex;
  align-items: center;
  gap: .8rem;
  flex-shrink: 0;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border: 1px solid rgba(182, 139, 85, .72);
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--brass-light);
  font-family: var(--font-title);
  font-weight: 700;
  letter-spacing: .02em;
  background: rgba(255, 255, 255, .04);
}

.brand-name {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.18rem;
  letter-spacing: .03em;
  color: #fff;
  line-height: 1.3;
  white-space: nowrap;
}

.desktop-nav {
  display: none;
  align-items: center;
  gap: 2.35rem;
}

.nav-link {
  position: relative;
  padding: 1.2rem 0;
  font-size: .9375rem;
  letter-spacing: .04em;
  color: rgba(255, 255, 255, .76);
  font-weight: 500;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 18px;
  width: 0;
  height: 3px;
  border-radius: 99px;
  background: var(--brass);
  transition: width .3s var(--ease);
}

.nav-link:hover,
.nav-link:focus-visible,
.nav-link.active {
  color: #fff;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1.05rem;
}

/* Mega menu */
.mega-wrap {
  position: relative;
}

.mega-trigger {
  display: none;
  align-items: center;
  gap: .55rem;
  background: none;
  border: 0;
  color: rgba(255, 255, 255, .88);
  cursor: pointer;
  font-size: .9375rem;
  letter-spacing: .03em;
  font-weight: 500;
  padding: .7rem 0;
  transition: color .25s var(--ease);
}

.mega-trigger i {
  font-size: .75rem;
  transition: transform .25s var(--ease);
}

.mega-panel {
  position: absolute;
  top: calc(100% + 22px);
  right: -8px;
  width: 640px;
  max-width: calc(100vw - 40px);
  background: var(--cream);
  border: 1px solid var(--line);
  border-top: 2px solid var(--brass);
  border-radius: 6px 6px 18px 18px;
  box-shadow: 0 30px 60px rgba(11, 34, 30, .16);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity .25s var(--ease), transform .25s var(--ease), visibility .25s;
  overflow: hidden;
}

.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mega-inner {
  display: grid;
  grid-template-columns: 1.05fr 1.35fr .9fr;
  gap: 0;
}

.mega-col {
  padding: 1.75rem 1.5rem;
}

.mega-col + .mega-col {
  border-left: 1px solid var(--line);
}

.mega-label {
  display: block;
  font-size: .75rem;
  letter-spacing: .2em;
  color: var(--brass);
  margin-bottom: 1.1rem;
}

.mega-links {
  display: grid;
  gap: .65rem;
}

.mega-links a {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  color: var(--text-main);
  font-size: .9375rem;
  font-weight: 500;
}

.mega-links a:hover {
  color: var(--pine);
  transform: translateX(3px);
}

.mega-news-item {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: .7rem 0;
  border-bottom: 1px dashed var(--line);
  font-size: .875rem;
  color: var(--text-main);
}

.mega-news-item span {
  color: var(--text-sub);
  white-space: nowrap;
  font-size: .8125rem;
}

.mega-card {
  position: relative;
  height: 170px;
  overflow: hidden;
  border-radius: 6px;
  margin-top: .25rem;
}

.mega-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .3s var(--ease);
}

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

.mega-card span {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 2rem 1rem .8rem;
  background: linear-gradient(0deg, rgba(11, 34, 30, .88), transparent);
  color: #fff;
  font-size: .875rem;
  letter-spacing: .04em;
}

.mobile-nav-input {
  position: fixed;
  top: -50px;
  left: -50px;
  opacity: 0;
  pointer-events: none;
}

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 120;
  background: rgba(11, 34, 30, .98);
  padding: 2rem 1.6rem;
  transform: translateX(105%);
  transition: transform .3s var(--ease);
  overflow-y: auto;
}

.mobile-nav-input:checked ~ .mobile-menu {
  transform: translateX(0);
}

.mobile-nav-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #fff;
  border-bottom: 1px solid rgba(182, 139, 85, .3);
  padding-bottom: 1.2rem;
}

.mobile-nav-close {
  display: inline-flex;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(182, 139, 85, .5);
  border-radius: 6px;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.2rem;
}

.mobile-nav-list {
  display: grid;
  gap: .8rem;
  margin: 2.6rem 0 0;
  padding: 0;
  list-style: none;
}

.mobile-nav-list a {
  color: #fff;
  font-size: 1.2rem;
  font-family: var(--font-title);
  padding: .5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}

.menu-open-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(182, 139, 85, .45);
  border-radius: 6px;
  color: #fff;
  font-size: 1rem;
  cursor: pointer;
}

@media (min-width: 1024px) {
  .desktop-nav {
    display: flex;
  }

  .mega-trigger {
    display: inline-flex;
  }

  .menu-open-btn {
    display: none;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: .75rem 1.7rem;
  border-radius: 6px;
  font-size: .9375rem;
  font-weight: 600;
  letter-spacing: .06em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease);
  text-align: center;
}

.btn:focus-visible,
a:focus-visible {
  outline: 2px solid var(--brass);
  outline-offset: 3px;
}

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

.btn-primary:hover {
  background: var(--pine-medium);
  border-color: var(--pine-medium);
  box-shadow: 0 10px 24px rgba(20, 59, 50, .18);
}

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

.btn-copper {
  background: var(--brass);
  color: #fff;
  border-color: var(--brass);
}

.btn-copper:hover {
  background: var(--brass-light);
  border-color: var(--brass-light);
}

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

.btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(211, 176, 128, .85);
}

.btn-outline:hover {
  background: var(--brass);
  border-color: var(--brass);
  color: #fff;
}

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

.btn-sm {
  min-height: 42px;
  padding: .55rem 1.25rem;
  font-size: .875rem;
}

/* Hero */
.hero {
  background: var(--pine-deep);
  color: #fff;
  overflow: hidden;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: clamp(2rem, 6vw, 5.5rem);
  align-items: center;
  padding-top: clamp(3rem, 7vw, 5.5rem);
  padding-bottom: 3.5rem;
  min-height: 690px;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  color: var(--brass-light);
  letter-spacing: .22em;
  font-size: .8125rem;
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 2rem;
}

.hero-kicker::before {
  content: "";
  width: 32px;
  height: 1px;
  background: var(--brass);
}

.hero-title {
  font-family: var(--font-title);
  color: #fff;
  font-size: clamp(2.75rem, 5.2vw, 4.5rem);
  line-height: 1.12;
  font-weight: 700;
  margin: 0 0 1.6rem;
  letter-spacing: .01em;
  max-width: 8em;
  word-break: keep-all;
  text-wrap: balance;
}

.hero-sub {
  color: rgba(255, 255, 255, .78);
  font-size: 1.125rem;
  line-height: 2;
  max-width: 46rem;
  margin: 0 0 2.6rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.4rem;
}

.hero-note {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  color: rgba(255, 255, 255, .62);
  font-size: .875rem;
}

.hero-note i {
  color: var(--brass-light);
}

.hero-media {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--pine-mist);
  border: 1px solid rgba(182, 139, 85, .35);
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .8s var(--ease);
}

.hero-media:hover img {
  transform: scale(1.03);
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(11, 34, 30, .62));
  pointer-events: none;
}

.hero-status {
  position: absolute;
  left: 1.4rem;
  bottom: 1.4rem;
  right: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: #fff;
  font-size: .875rem;
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: 10px;
  background: rgba(11, 34, 30, .48);
  padding: .75rem 1rem;
  backdrop-filter: blur(8px);
  z-index: 2;
}

.hero-trust {
  border-top: 1px solid rgba(182, 139, 85, .24);
  background: rgba(255, 255, 255, .035);
}

.trust-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: .6rem 2rem;
  padding: 1.2rem 0;
  margin: 0;
  list-style: none;
}

.trust-list li {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  color: rgba(255, 255, 255, .74);
  font-size: .875rem;
  letter-spacing: .04em;
}

.trust-list i {
  color: var(--brass-light);
  font-size: .8125rem;
}

.trust-list li + li {
  position: relative;
}

.trust-list li + li::before {
  content: "";
  position: absolute;
  left: -1.2rem;
  top: 50%;
  translate: 0 -50%;
  width: 1px;
  height: 16px;
  background: rgba(255, 255, 255, .18);
}

@media (max-width: 1023px) {
  .hero-grid {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero-media {
    order: -1;
    max-width: 620px;
  }
}

/* Ladder / step section */
.ladder-section {
  background: var(--sand);
}

.ladder {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
  margin-top: 3.5rem;
  max-width: 1200px;
}

.ladder-item {
  position: relative;
  display: grid;
  grid-template-columns: 120px 1.1fr auto;
  align-items: center;
  gap: 2rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 2.2rem 2.4rem;
  background: var(--cream);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease), color .3s var(--ease);
}

.ladder-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(11, 34, 30, .1);
}

.ladder-step-1 {
  max-width: 880px;
}

.ladder-step-2 {
  margin-left: 7%;
  max-width: 920px;
  background: #edf1ec;
}

.ladder-step-3 {
  margin-left: 14%;
  max-width: 960px;
  background: var(--pine-deep);
  border-color: rgba(182, 139, 85, .45);
}

.ladder-index {
  font-family: var(--font-title);
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: .05em;
  color: rgba(182, 139, 85, .6);
  line-height: 1;
}

.ladder-step-3 .ladder-index {
  color: var(--brass-light);
}

.ladder-name {
  font-family: var(--font-title);
  font-size: 1.6rem;
  font-weight: 700;
  margin: .3rem 0 .35rem;
  letter-spacing: .03em;
}

.ladder-desc {
  font-size: .9375rem;
  color: var(--text-sub);
  margin-bottom: 1.1rem;
  max-width: 60ch;
}

.ladder-step-3 .ladder-desc {
  color: rgba(255, 255, 255, .66);
}

.ladder-features {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .6rem 1.5rem;
}

.ladder-features li {
  position: relative;
  font-size: .9375rem;
  padding-left: 1.2rem;
  color: var(--text-main);
}

.ladder-step-3 .ladder-features li {
  color: rgba(255, 255, 255, .84);
}

.ladder-features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .5em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brass);
}

.ladder-action {
  text-align: center;
}

.ladder-action .btn {
  width: 140px;
}

@media (max-width: 900px) {
  .ladder-item,
  .ladder-step-1,
  .ladder-step-2,
  .ladder-step-3 {
    margin-left: 0;
    max-width: 100%;
  }

  .ladder-item {
    grid-template-columns: 1fr;
    gap: 1rem;
    padding: 1.8rem 1.5rem;
  }

  .ladder-action {
    text-align: left;
  }

  .ladder-action .btn {
    width: 100%;
  }
}

/* Table compare */
.compare-section {
  background: var(--pine-mist);
}

.compare-wrap {
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 1rem;
  overflow: hidden;
  margin-top: 3rem;
}

.compare-scroll {
  overflow-x: auto;
}

.compare-table {
  min-width: 780px;
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: .9375rem;
}

.compare-table th,
.compare-table td {
  padding: 1.05rem 1.2rem;
  border-bottom: 1px solid var(--line);
  text-align: center;
}

.compare-table thead th {
  border-bottom: 1px solid rgba(182, 139, 85, .6);
  font-weight: 700;
  color: var(--text-main);
  font-family: var(--font-title);
  font-size: 1rem;
}

.compare-table thead th:first-child {
  text-align: left;
  color: var(--text-sub);
  font-family: var(--font-body);
}

.compare-table tbody th {
  font-weight: 500;
  color: var(--text-sub);
  text-align: left;
  white-space: nowrap;
}

.compare-table .recommend-col {
  background: var(--pine) !important;
  color: #fff;
}

.compare-table .recommend-col td,
.compare-table .recommend-col th {
  color: #fff;
  border-color: rgba(255, 255, 255, .18);
}

.compare-table .recommend-mark {
  display: inline-block;
  background: var(--brass);
  color: #fff;
  font-size: .75rem;
  padding: .1rem .55rem;
  border-radius: 99px;
  margin-left: .4rem;
  vertical-align: middle;
  letter-spacing: .1em;
}

.check-yes {
  color: var(--pine-medium);
  font-weight: 700;
}

.compare-table .recommend-col .check-yes {
  color: var(--brass-light);
}

.check-no {
  color: #bfc9c3;
}

/* News / CMS */
.news-section {
  background: var(--sand);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}

.news-card {
  display: flex;
  flex-direction: column;
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 2rem 1.8rem;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
  min-height: 260px;
}

.news-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 34px rgba(11, 34, 30, .1);
  border-color: rgba(182, 139, 85, .45);
}

.news-card-category {
  display: inline-flex;
  align-self: flex-start;
  border: 1px solid rgba(182, 139, 85, .75);
  color: var(--brass);
  border-radius: 4px;
  font-size: .75rem;
  padding: .05rem .55rem;
  letter-spacing: .12em;
  margin-bottom: 1.2rem;
}

.news-card h3 {
  font-family: var(--font-title);
  font-size: 1.25rem;
  line-height: 1.45;
  font-weight: 600;
  margin: 0 0 .8rem;
  color: var(--pine-deep);
  transition: color .3s var(--ease);
}

.news-card:hover h3 {
  color: var(--pine);
}

.news-card p {
  color: var(--text-sub);
  font-size: .875rem;
  line-height: 1.9;
  margin: 0 0 1.5rem;
  flex: 1;
}

.news-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  padding-top: 1rem;
  color: var(--text-sub);
  font-size: .8125rem;
}

.news-card-meta a {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  color: var(--pine);
  font-weight: 600;
}

.news-card-meta a i {
  transition: transform .25s var(--ease);
  font-size: .8125rem;
}

.news-card-meta a:hover i {
  transform: translateX(4px);
}

.news-empty {
  grid-column: 1 / -1;
  border: 1px dashed var(--brass);
  background: var(--cream);
  border-radius: 16px;
  padding: 4.5rem 2rem;
  text-align: center;
  color: var(--text-sub);
  font-size: .9375rem;
}

@media (max-width: 1023px) {
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .news-grid {
    grid-template-columns: 1fr;
  }
}

/* CTA band */
.cta-band {
  background: var(--pine-deep);
  position: relative;
  color: #fff;
  overflow: hidden;
}

.cta-band::before {
  content: "";
  position: absolute;
  right: -8%;
  top: -60%;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  border: 1px solid rgba(182, 139, 85, .18);
}

.cta-band::after {
  content: "";
  position: absolute;
  right: 5%;
  top: -35%;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  border: 1px solid rgba(182, 139, 85, .12);
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  position: relative;
  z-index: 2;
  padding-top: clamp(3rem, 8vw, 5.5rem);
  padding-bottom: clamp(3rem, 8vw, 5.5rem);
}

.cta-calendar {
  display: flex;
  align-items: center;
  gap: 1rem;
  border: 1px solid rgba(182, 139, 85, .45);
  border-radius: 14px;
  background: rgba(255, 255, 255, .04);
  width: fit-content;
  padding: .7rem 1.1rem .7rem .7rem;
  margin-bottom: 1.5rem;
}

.cta-calendar .cal-date {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--brass);
  color: #fff;
  border-radius: 8px;
  font-family: var(--font-title);
  font-weight: 700;
  padding: .45rem .75rem;
  line-height: 1.2;
  font-size: .9rem;
  letter-spacing: .05em;
}

.cta-calendar .cal-text {
  color: rgba(255, 255, 255, .7);
  font-size: .8125rem;
  line-height: 1.5;
}

.cta-title {
  font-family: var(--font-title);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  color: #fff;
  margin: 0 0 .6rem;
  letter-spacing: .02em;
  line-height: 1.3;
}

.cta-desc {
  color: rgba(255, 255, 255, .76);
  font-size: 1.0625rem;
  line-height: 1.9;
  max-width: 42rem;
}

/* Form */
.contact-section {
  background: var(--cream);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}

.contact-intro .section-lead {
  max-width: 520px;
}

.contact-points {
  list-style: none;
  margin: 2.2rem 0 0;
  padding: 0;
  display: grid;
  gap: 1.2rem;
}

.contact-points li {
  display: flex;
  align-items: flex-start;
  gap: .9rem;
}

.contact-points i {
  color: var(--brass);
  margin-top: .45rem;
}

.contact-points strong {
  display: block;
  font-weight: 600;
  color: var(--pine-deep);
}

.contact-points p {
  color: var(--text-sub);
  font-size: .875rem;
  line-height: 1.8;
  margin: 0;
}

.contact-form {
  background: #fffdf8;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: clamp(1.5rem, 3vw, 2.6rem);
  box-shadow: 0 20px 50px rgba(11, 34, 30, .07);
}

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

.field-group {
  margin-bottom: 1.1rem;
}

.field-group label {
  display: block;
  font-size: .875rem;
  color: var(--text-main);
  font-weight: 500;
  margin-bottom: .5rem;
}

.field-group input,
.field-group select,
.field-group textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: #fdfbf6;
  border-radius: 8px;
  font-size: .9375rem;
  line-height: 1.5;
  padding: .75rem .95rem;
  color: var(--text-main);
  font-family: var(--font-body);
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease);
}

.field-group input:focus,
.field-group select:focus,
.field-group textarea:focus {
  outline: none;
  border-color: var(--brass);
  box-shadow: 0 0 0 4px rgba(182, 139, 85, .12);
  background: #fff;
}

.field-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-privacy {
  color: var(--text-sub);
  font-size: .8125rem;
  line-height: 1.8;
  margin: 1.1rem 0 0;
}

@media (max-width: 900px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }

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

/* FAQ */
.faq-section {
  background: var(--sand);
}

.faq-wrap {
  max-width: 860px;
  margin: 3.2rem auto 0;
  display: grid;
  gap: .9rem;
}

.faq-item {
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: 10px;
  transition: border-color .3s var(--ease), background .3s var(--ease);
}

.faq-item[open] {
  border-color: rgba(182, 139, 85, .55);
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  font-weight: 600;
  color: var(--pine-deep);
  transition: color .3s var(--ease);
  font-size: 1rem;
}

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

.faq-item summary::after {
  content: "+";
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--brass);
  transition: transform .3s var(--ease);
  line-height: 1;
  flex: none;
}

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

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

.faq-body {
  padding: 0 1.5rem 1.4rem;
  margin-top: -.3rem;
  color: var(--text-sub);
  line-height: 1.95;
  font-size: .9375rem;
}

/* Footer */
.site-footer {
  background: var(--pine-deep);
  color: rgba(255, 255, 255, .74);
  border-top: 1px solid rgba(182, 139, 85, .42);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 2.5rem;
  padding-top: clamp(3.5rem, 7vw, 5.5rem);
  padding-bottom: 3rem;
}

.footer-brand {
  font-family: var(--font-title);
  color: #fff;
  font-size: 1.2rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: .8rem;
  margin-bottom: 1.2rem;
}

.footer-brand .brand-mark {
  width: 36px;
  height: 36px;
  font-size: .8rem;
}

.footer-about {
  font-size: .875rem;
  line-height: 1.9;
  max-width: 340px;
}

.footer-title {
  color: var(--brass-light);
  font-size: .8125rem;
  letter-spacing: .2em;
  margin-bottom: 1.2rem;
  font-weight: 600;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: .8rem;
}

.footer-links a {
  color: rgba(255, 255, 255, .7);
  font-size: .875rem;
  display: inline-flex;
  gap: .5rem;
  transition: color .25s var(--ease), transform .25s var(--ease);
}

.footer-links a:hover {
  color: var(--brass-light);
  transform: translateX(3px);
}

.footer-contact li {
  font-size: .875rem;
  line-height: 1.9;
  margin-bottom: .5rem;
  padding-left: .2rem;
}

.footer-contact i {
  width: 1.5rem;
  color: var(--brass);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding: 1.5rem 0 1.8rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: .8438rem;
  color: rgba(255, 255, 255, .4);
}

@media (max-width: 1023px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 640px) {
  .footer-top {
    grid-template-columns: 1fr;
  }

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

  .ladder-item {
    grid-template-columns: 1fr;
  }
}

/* roulang page: article */
:root {
        --pine-deep: #0B221E;
        --pine: #143B32;
        --pine-medium: #1F5548;
        --pine-mist: #E4ECE8;
        --brass: #B68B55;
        --brass-light: #D3B080;
        --sand: #F5F0E6;
        --cream: #FBF8F1;
        --line: #E3DCCE;
        --text-main: #22312C;
        --text-sub: #5E716A;
        --clay: #C05B3C;
        --radius-lg: 20px;
        --radius-md: 12px;
        --radius-sm: 6px;
        --shadow-card: 0 1px 2px rgba(11, 34, 30, 0.04), 0 6px 18px rgba(11, 34, 30, 0.04);
        --shadow-hover: 0 12px 30px rgba(11, 34, 30, 0.10);
        --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        margin: 0;
        background: var(--sand);
        color: var(--text-main);
        font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        font-size: 16px;
        line-height: 1.8;
        -webkit-font-smoothing: antialiased;
    }

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

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

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

    p,
    h1,
    h2,
    h3,
    h4,
    figure,
    blockquote,
    ul,
    ol {
        margin: 0;
    }

    :focus-visible {
        outline: 2px solid var(--brass);
        outline-offset: 3px;
        border-radius: 4px;
    }

    .container {
        width: min(1240px, 100%);
        margin: 0 auto;
        padding-left: clamp(20px, 4vw, 48px);
        padding-right: clamp(20px, 4vw, 48px);
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-height: 44px;
        padding: 0 24px;
        border-radius: 8px;
        font-size: 0.9375rem;
        letter-spacing: 0.05em;
        white-space: nowrap;
        transition: background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease), transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
        font-weight: 500;
        outline: none;
    }

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

    .btn-primary:hover {
        background: var(--pine-medium);
        border-color: var(--pine-medium);
    }

    .btn-outline {
        background: transparent;
        color: var(--pine);
        border: 1px solid rgba(182, 139, 85, 0.85);
    }

    .btn-outline:hover {
        background: var(--brass);
        border-color: var(--brass);
        color: #fff;
    }

    .btn-copper {
        background: var(--brass);
        border: 1px solid transparent;
        color: #fff;
    }

    .btn-copper:hover {
        background: var(--brass-light);
        color: #0b221e;
    }

    .btn-sm {
        min-height: 40px;
        padding: 0 18px;
    }

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

    .btn-block {
        width: 100%;
    }

    .site-header {
        position: sticky;
        top: 0;
        z-index: 70;
        background: rgba(11, 34, 30, 0.93);
        backdrop-filter: blur(14px);
        border-bottom: 1px solid rgba(182, 139, 85, 0.32);
    }

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

    .brand {
        display: inline-flex;
        align-items: center;
        gap: 12px;
        flex-shrink: 0;
    }

    .brand-mark {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 38px;
        height: 38px;
        background: var(--brass);
        color: #0b221e;
        border-radius: 6px;
        font-weight: 700;
        font-size: 0.8125rem;
        letter-spacing: 0.08em;
    }

    .brand-name {
        color: #fff;
        font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
        font-size: 1.15rem;
        font-weight: 700;
        letter-spacing: 0.02em;
    }

    .desktop-nav {
        display: flex;
        align-items: center;
        gap: 36px;
        margin-right: auto;
        margin-left: 40px;
    }

    .nav-link {
        position: relative;
        color: rgba(255, 255, 255, 0.86);
        font-size: 0.9375rem;
        letter-spacing: 0.06em;
        padding: 9px 2px;
        transition: color 0.2s var(--ease);
    }

    .nav-link::after {
        content: "";
        position: absolute;
        left: 0;
        right: 0;
        bottom: 0;
        height: 2px;
        background: var(--brass);
        transform: scaleX(0);
        transform-origin: left;
        transition: transform 0.22s var(--ease);
    }

    .nav-link:hover,
    .nav-link.active {
        color: #fff;
    }

    .nav-link:hover::after,
    .nav-link.active::after {
        transform: scaleX(1);
    }

    .header-actions {
        display: flex;
        align-items: center;
        justify-content: flex-end;
        gap: 14px;
        flex-shrink: 0;
    }

    .mega-wrap {
        position: relative;
        display: none;
    }

    @media (min-width: 1024px) {
        .mega-wrap {
            display: block;
        }
    }

    .mega-trigger {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: transparent;
        border: 1px solid rgba(255, 255, 255, 0.24);
        color: rgba(255, 255, 255, 0.92);
        border-radius: 6px;
        min-height: 36px;
        padding: 0 14px;
        font-size: 0.8125rem;
        letter-spacing: 0.08em;
        cursor: pointer;
        transition: border-color 0.2s var(--ease), background 0.2s var(--ease), color 0.2s var(--ease);
    }

    .mega-trigger:hover,
    .mega-wrap:focus-within .mega-trigger {
        border-color: var(--brass);
        color: #fff;
        background: rgba(182, 139, 85, 0.12);
    }

    .mega-panel {
        position: absolute;
        right: 0;
        top: calc(100% + 14px);
        width: min(660px, 82vw);
        background: var(--cream);
        border-radius: 14px;
        border-top: 2px solid var(--brass);
        box-shadow: 0 24px 50px rgba(0, 0, 0, 0.22);
        padding: 22px;
        opacity: 0;
        visibility: hidden;
        transform: translateY(8px);
        transition: opacity 0.2s var(--ease), transform 0.2s var(--ease), visibility 0.2s;
        z-index: 80;
    }

    .mega-wrap:hover .mega-panel,
    .mega-wrap:focus-within .mega-panel {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .mega-inner {
        display: grid;
        grid-template-columns: 0.9fr 1fr 1fr;
        gap: 24px;
    }

    .mega-col {
        min-width: 0;
    }

    .mega-col+.mega-col {
        padding-left: 20px;
        border-left: 1px solid var(--line);
    }

    .mega-label {
        display: block;
        font-size: 0.75rem;
        letter-spacing: 0.22em;
        color: var(--brass);
        margin-bottom: 14px;
        font-weight: 600;
    }

    .mega-links {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    .mega-links a {
        color: var(--text-main);
        font-size: 0.9375rem;
        padding: 5px 0;
        transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
    }

    .mega-links a:hover {
        color: var(--pine);
        padding-left: 6px;
    }

    .mega-news-item {
        display: flex;
        align-items: baseline;
        justify-content: space-between;
        gap: 14px;
        font-size: 0.875rem;
        padding: 9px 0;
        border-bottom: 1px dashed var(--line);
    }

    .mega-news-item a {
        color: var(--text-main);
        transition: color 0.2s var(--ease);
    }

    .mega-news-item a:hover {
        color: var(--pine);
    }

    .mega-news-item span {
        font-size: 0.75rem;
        color: var(--text-sub);
        flex-shrink: 0;
    }

    .mega-card {
        display: block;
        border-radius: 10px;
        overflow: hidden;
        background: var(--pine-mist);
        border: 1px solid var(--line);
        margin-bottom: 10px;
        transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
    }

    .mega-card:hover {
        border-color: rgba(182, 139, 85, 0.6);
        transform: translateY(-2px);
    }

    .mega-card img {
        aspect-ratio: 16 / 9;
        object-fit: cover;
        width: 100%;
    }

    .mega-card span {
        display: block;
        padding: 12px 14px;
        color: var(--text-main);
        font-size: 0.875rem;
    }

    .header-cta {
        display: none;
        height: 40px;
        min-width: 104px;
    }

    @media (min-width: 768px) {
        .header-cta {
            display: inline-flex;
        }
    }

    .menu-open-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 42px;
        height: 42px;
        border: 1px solid rgba(255, 255, 255, 0.32);
        border-radius: 8px;
        color: white;
        font-size: 1.05rem;
        cursor: pointer;
        transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
    }

    .menu-open-btn:hover {
        background: rgba(255, 255, 255, 0.08);
        border-color: var(--brass);
    }

    @media (min-width: 1024px) {
        .menu-open-btn {
            display: none;
        }
    }

    .mobile-nav-input,
    .mobile-close-input {
        position: absolute;
        opacity: 0;
        pointer-events: none;
        height: 0;
        width: 0;
    }

    .mobile-overlay {
        position: fixed;
        inset: 0;
        z-index: 84;
        background: rgba(0, 0, 0, 0.46);
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.25s var(--ease), visibility 0.25s;
        cursor: pointer;
    }

    .mobile-drawer {
        position: fixed;
        top: 0;
        right: 0;
        height: 100vh;
        width: min(88vw, 390px);
        z-index: 86;
        background: var(--cream);
        box-shadow: -12px 0 36px rgba(0, 0, 0, 0.16);
        transform: translateX(102%);
        transition: transform 0.24s var(--ease);
        display: flex;
        flex-direction: column;
        overflow-y: auto;
        padding: 24px;
    }

    #mobile-nav:checked~.mobile-overlay {
        opacity: 1;
        visibility: visible;
    }

    #mobile-nav:checked~.mobile-drawer {
        transform: translateX(0);
    }

    .mobile-topbar {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        padding-bottom: 22px;
        border-bottom: 1px solid var(--line);
        color: var(--text-main);
        font-weight: 600;
        font-size: 1rem;
    }

    .mobile-brandnote {
        display: inline-flex;
        align-items: center;
        gap: 8px;
    }

    .mobile-close {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: transparent;
        border: 1px solid var(--line);
        color: var(--text-main);
        border-radius: 7px;
        padding: 7px 12px;
        font-size: 0.8125rem;
        cursor: pointer;
        transition: background 0.18s var(--ease), border-color 0.18s var(--ease);
    }

    .mobile-close:hover {
        background: var(--pine-mist);
        border-color: rgba(182, 139, 85, 0.58);
    }

    .mobile-nav-links {
        display: flex;
        flex-direction: column;
        margin-top: 18px;
        gap: 4px;
    }

    .mobile-nav-links a {
        display: block;
        padding: 13px 4px;
        color: var(--text-main);
        font-size: 1rem;
        font-weight: 600;
        border-bottom: 1px solid var(--line);
        transition: color 0.18s var(--ease), padding-left 0.18s var(--ease);
    }

    .mobile-nav-links a:hover {
        color: var(--pine);
        padding-left: 8px;
    }

    .mobile-col-label {
        margin-top: 22px;
        padding: 0 2px 6px;
        color: var(--brass);
        font-size: 0.75rem;
        letter-spacing: 0.24em;
    }

    .mobile-btnrow {
        margin-top: 26px;
        display: flex;
        flex-direction: column;
        gap: 12px;
    }

    .site-main {
        min-height: 80vh;
        padding: clamp(2.2rem, 5vw, 4rem) 0;
        overflow: hidden;
    }

    .breadcrumb {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 8px;
        font-size: 0.8125rem;
        color: var(--text-sub);
        margin-bottom: 32px;
        letter-spacing: 0.03em;
    }

    .breadcrumb a {
        transition: color 0.2s var(--ease);
    }

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

    .breadcrumb .current {
        color: var(--text-sub);
    }

    .bread-sep {
        color: rgba(94, 113, 106, 0.6);
    }

    .article-shell {
        max-width: 820px;
        margin: 0 auto;
    }

    .article-card {
        background: var(--cream);
        border: 1px solid var(--line);
        border-radius: var(--radius-lg);
        padding: clamp(24px, 4.5vw, 56px);
        box-shadow: var(--shadow-card);
    }

    .article-title {
        font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
        font-size: clamp(1.7rem, 3.4vw, 2.6rem);
        line-height: 1.28;
        color: var(--text-main);
        margin-bottom: 24px;
        font-weight: 700;
    }

    .article-meta-row {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 14px 20px;
        padding-top: 18px;
        border-top: 1px solid rgba(35, 55, 48, 0.14);
        font-size: 0.875rem;
        color: var(--text-sub);
        letter-spacing: 0.02em;
        margin-bottom: 34px;
    }

    .article-meta-row .meta-item {
        display: inline-flex;
        align-items: center;
        gap: 7px;
    }

    .article-meta-row i {
        color: var(--brass);
        font-size: 0.8rem;
    }

    .article-body {
        color: #2b3b35;
        font-size: 1rem;
        line-height: 2;
        letter-spacing: 0.012em;
        overflow-wrap: anywhere;
    }

    .article-body p {
        margin-bottom: 1.65em;
    }

    .article-body h2 {
        font-size: clamp(1.25rem, 2vw, 1.6rem);
        line-height: 1.4;
        color: var(--pine-deep);
        margin: 2.1em 0 0.9em;
        font-weight: 700;
        font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
    }

    .article-body h3 {
        font-size: 1.15rem;
        line-height: 1.5;
        color: var(--pine);
        margin: 1.9em 0 0.75em;
        font-weight: 600;
    }

    .article-body a {
        color: var(--pine);
        border-bottom: 1px solid rgba(182, 139, 85, 0.6);
        transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
    }

    .article-body a:hover {
        color: var(--pine-medium);
        border-bottom-color: var(--brass);
    }

    .article-body strong {
        color: var(--pine-deep);
    }

    .article-body ul,
    .article-body ol {
        padding-left: 1.5em;
        margin-bottom: 1.65em;
    }

    .article-body li {
        margin-bottom: 0.5em;
    }

    .article-body blockquote {
        position: relative;
        padding: 0.9em 0.2em 0.9em 1.6em;
        background: rgba(228, 236, 232, 0.55);
        border-radius: 0 10px 10px 0;
        border-left: 3px solid var(--brass);
        color: #354740;
        font-style: italic;
        margin: 2em 0;
    }

    .article-body blockquote p {
        margin-bottom: 0.3em;
    }

    .article-body img {
        display: block;
        max-width: 100%;
        margin: 2em auto;
        border-radius: var(--radius-md);
        border: 1px solid var(--line);
    }

    .article-body figure {
        margin: 2em 0;
    }

    .article-body figure img {
        margin: 0 0 8px;
    }

    .article-body figcaption {
        text-align: center;
        font-size: 0.8125rem;
        color: var(--text-sub);
        line-height: 1.7;
    }

    .article-body hr {
        border: none;
        border-top: 1px solid rgba(227, 220, 206, 0.9);
        margin: 2.4em 0;
    }

    .article-body table {
        width: 100%;
        border-collapse: collapse;
        font-size: 0.9375rem;
        margin: 2em 0;
        background: #fff;
        border-radius: 10px;
        overflow: hidden;
    }

    .article-body th,
    .article-body td {
        border: 1px solid var(--line);
        padding: 11px 14px;
        text-align: left;
    }

    .article-body th {
        background: var(--pine-mist);
        font-weight: 600;
        color: var(--pine-deep);
    }

    .article-body code {
        display: inline-block;
        background: var(--pine-mist);
        border: 1px solid rgba(20, 59, 50, 0.1);
        border-radius: 5px;
        padding: 0.1em 0.5em;
        font-size: 0.95em;
    }

    .article-tags {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 10px;
        border-top: 1px solid rgba(227, 220, 206, 0.9);
        padding-top: 24px;
        margin-top: 38px;
    }

    .tag-label {
        color: var(--text-sub);
        font-size: 0.8125rem;
        letter-spacing: 0.08em;
        margin-right: 2px;
    }

    .tag-item {
        display: inline-flex;
        align-items: center;
        background: transparent;
        border: 1px solid rgba(182, 139, 85, 0.5);
        color: #44564f;
        font-size: 0.8125rem;
        padding: 2px 12px;
        border-radius: 30px;
        transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
    }

    .tag-item:hover {
        background: var(--brass);
        color: #fff;
        border-color: var(--brass);
    }

    .article-pager {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: space-between;
        gap: 14px;
        border: 1px solid var(--line);
        background: var(--cream);
        border-radius: var(--radius-md);
        padding: 18px 22px;
        margin-top: 26px;
    }

    .pager-pair {
        display: flex;
        gap: 12px;
        flex-wrap: wrap;
    }

    .pager-link {
        color: var(--pine);
        font-size: 0.875rem;
        transition: color 0.2s var(--ease);
    }

    .pager-link:hover {
        color: var(--brass);
    }

    .pager-muted {
        color: #9aa8a2;
        font-size: 0.875rem;
    }

    .pager-return a {
        color: var(--text-sub);
        font-size: 0.875rem;
        border-bottom: 1px solid rgba(94, 113, 106, 0.4);
        padding-bottom: 2px;
        transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
    }

    .pager-return a:hover {
        color: var(--pine);
        border-bottom-color: var(--brass);
    }

    .related-section {
        max-width: 1120px;
        margin: 60px auto 0;
    }

    .related-head {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        gap: 16px;
        margin-bottom: 24px;
    }

    .section-kicker {
        color: var(--brass);
        font-size: 0.8125rem;
        letter-spacing: 0.24em;
        text-transform: uppercase;
        display: block;
        margin-bottom: 6px;
        font-weight: 600;
    }

    .related-head h2 {
        font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
        font-size: 1.5rem;
        line-height: 1.35;
        font-weight: 700;
        color: var(--text-main);
    }

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

    @media (min-width: 640px) {
        .related-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }

    @media (min-width: 1024px) {
        .related-grid {
            grid-template-columns: repeat(3, 1fr);
        }
    }

    .related-card {
        background: var(--cream);
        border: 1px solid var(--line);
        border-radius: 16px;
        overflow: hidden;
        box-shadow: var(--shadow-card);
        transition: transform 0.22s var(--ease), border-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
    }

    .related-card:hover {
        transform: translateY(-4px);
        border-color: rgba(182, 139, 85, 0.55);
        box-shadow: var(--shadow-hover);
    }

    .related-card .card-img {
        position: relative;
        overflow: hidden;
        background: var(--pine-mist);
        aspect-ratio: 16 / 10;
    }

    .related-card .card-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.3s var(--ease);
    }

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

    .card-cat {
        position: absolute;
        left: 14px;
        top: 14px;
        z-index: 2;
        background: rgba(11, 34, 30, 0.82);
        color: #fff;
        border: 1px solid rgba(182, 139, 85, 0.6);
        font-size: 0.75rem;
        padding: 2px 10px;
        border-radius: 30px;
        letter-spacing: 0.04em;
    }

    .related-card .card-body {
        padding: 20px 22px 22px;
    }

    .related-card h3 {
        font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
        font-size: 1.05rem;
        line-height: 1.6;
        font-weight: 700;
        color: var(--text-main);
        margin-bottom: 8px;
    }

    .related-card p {
        font-size: 0.875rem;
        color: var(--text-sub);
        line-height: 1.8;
        margin-bottom: 16px;
    }

    .related-meta {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 10px;
        font-size: 0.75rem;
        color: var(--text-sub);
    }

    .related-meta a {
        color: var(--pine);
        border-bottom: 1px solid rgba(182, 139, 85, 0.55);
        transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
    }

    .related-meta a:hover {
        color: var(--brass);
        border-bottom-color: var(--brass);
    }

    .empty-state {
        min-height: 52vh;
        display: flex;
        align-items: center;
        justify-content: center;
        text-align: center;
    }

    .empty-card {
        background: var(--cream);
        border: 1px solid var(--line);
        border-radius: 20px;
        padding: clamp(28px, 6vw, 60px);
        box-shadow: var(--shadow-card);
        max-width: 520px;
        width: 100%;
        text-align: center;
    }

    .empty-card i {
        display: block;
        font-size: 2.2rem;
        color: var(--brass);
        margin-bottom: 16px;
    }

    .empty-card h1 {
        font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
        font-size: 1.6rem;
        color: var(--text-main);
        margin-bottom: 22px;
    }

    .site-footer {
        background: var(--pine-deep);
        color: rgba(255, 255, 255, 0.74);
        padding: clamp(48px, 6vw, 72px) 0 30px;
        border-top: 1px solid rgba(182, 139, 85, 0.36);
    }

    .footer-top {
        display: grid;
        grid-template-columns: 1fr;
        gap: 40px;
        margin-bottom: 44px;
    }

    @media (min-width: 700px) {
        .footer-top {
            grid-template-columns: 1.3fr 1fr 1fr 1.1fr;
        }
    }

    .footer-brand {
        display: flex;
        align-items: center;
        gap: 10px;
        color: #fff;
        font-size: 1.15rem;
        font-weight: 700;
        font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
        margin-bottom: 14px;
    }

    .footer-brand .brand-mark {
        font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
    }

    .footer-about {
        color: rgba(255, 255, 255, 0.56);
        font-size: 0.85rem;
        line-height: 1.85;
        max-width: 320px;
    }

    .footer-title {
        color: #fff;
        font-size: 0.9375rem;
        font-weight: 600;
        margin-bottom: 18px;
        letter-spacing: 0.08em;
    }

    .footer-links {
        list-style: none;
        padding: 0;
        margin: 0;
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    .footer-links a {
        color: rgba(255, 255, 255, 0.68);
        font-size: 0.875rem;
        transition: color 0.18s var(--ease), padding-left 0.18s var(--ease);
    }

    .footer-links a:hover {
        color: var(--brass-light);
        padding-left: 3px;
    }

    .footer-links i {
        color: var(--brass);
        width: 17px;
        margin-right: 4px;
        font-size: 0.8rem;
    }

    .footer-bottom {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        justify-content: space-between;
        gap: 8px;
        border-top: 1px solid rgba(255, 255, 255, 0.12);
        padding-top: 24px;
        color: rgba(255, 255, 255, 0.44);
        font-size: 0.8125rem;
        letter-spacing: 0.02em;
    }

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

        .header-inner {
            min-height: 68px;
        }
    }

/* roulang page: category2 */
:root {
    --pine-deep: #0B221E;
    --pine: #143B32;
    --pine-medium: #1F5548;
    --pine-mist: #E4ECE8;
    --brass: #B68B55;
    --brass-light: #D3B080;
    --sand: #F5F0E6;
    --cream: #FBF8F1;
    --line: #E3DCCE;
    --text-main: #22312C;
    --text-sub: #5E716A;
    --clay: #C05B3C;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --shadow-soft: 0 18px 40px rgba(11, 34, 30, 0.08);
    --transition: 200ms cubic-bezier(0.22, 0.61, 0.36, 1);
  }

  *,
  *::before,
  *::after {
    box-sizing: border-box;
  }
  html {
    scroll-behavior: smooth;
  }
  body {
    margin: 0;
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
    background: var(--sand);
    color: var(--text-main);
    line-height: 1.85;
    -webkit-font-smoothing: antialiased;
  }
  img {
    display: block;
    max-width: 100%;
  }
  a {
    color: inherit;
    text-decoration: none;
  }
  button,
  input,
  select,
  textarea {
    font: inherit;
    color: inherit;
  }
  button,
  label,
  summary {
    -webkit-tap-highlight-color: transparent;
  }
  h1,
  h2,
  h3,
  .font-serif {
    font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", SimSun, serif;
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: 0.01em;
  }
  #page-top .container {
    max-width: 1240px;
    width: 100%;
    margin-inline: auto;
    padding-inline: clamp(1rem, 3vw, 2rem);
  }
  #page-top a:focus-visible,
  #page-top button:focus-visible,
  #page-top summary:focus-visible,
  #page-top input:focus-visible,
  #page-top select:focus-visible,
  #page-top textarea:focus-visible {
    outline: 2px solid var(--brass);
    outline-offset: 3px;
  }

  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 0.8125rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--brass);
    font-weight: 600;
  }
  .eyebrow::before {
    content: "";
    width: 26px;
    height: 1px;
    background: var(--brass);
    flex: none;
  }
  .eyebrow-light {
    color: var(--brass-light);
  }
  .eyebrow-light::before {
    background: var(--brass-light);
  }

  .section-pad {
    padding-block: clamp(4rem, 8vw, 6.5rem);
  }
  .section-pad-sm {
    padding-block: clamp(3rem, 5vw, 4.5rem);
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    height: 48px;
    padding: 0 1.5rem;
    border-radius: 8px;
    border: 1px solid transparent;
    font-size: 0.9375rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    line-height: 1;
    white-space: nowrap;
    transition: background var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
    cursor: pointer;
  }
  .btn-primary {
    background: var(--pine);
    color: #fff;
  }
  .btn-primary:hover,
  .btn-primary:focus-visible {
    background: var(--pine-medium);
    transform: translateY(-2px);
  }
  .btn-copper {
    background: var(--brass);
    border-color: var(--brass);
    color: #fff;
  }
  .btn-copper:hover,
  .btn-copper:focus-visible {
    background: var(--brass-light);
    border-color: var(--brass-light);
    transform: translateY(-2px);
  }
  .btn-outline {
    border-color: rgba(255, 255, 255, 0.65);
    color: #fff;
    background: transparent;
  }
  .btn-outline:hover,
  .btn-outline:focus-visible {
    border-color: var(--brass);
    background: var(--brass);
    color: #fff;
  }
  .btn-sm {
    height: 44px;
    padding: 0 1.2rem;
  }
  .link-line {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.88);
    font-weight: 500;
    border-bottom: 1px solid rgba(214, 177, 128, 0.75);
    padding-bottom: 4px;
    transition: color var(--transition), border-color var(--transition);
  }
  .link-line:hover,
  .link-line:focus-visible {
    color: var(--brass-light);
    border-color: var(--brass-light);
  }

  .site-header {
    position: sticky;
    top: 0;
    z-index: 80;
    background: rgba(11, 34, 30, 0.92);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(182, 139, 85, 0.3);
  }
  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 76px;
    gap: 28px;
  }
  .brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex: none;
  }
  .brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: var(--brass);
    color: #fff;
    font-family: "Noto Serif SC", serif;
    font-size: 0.875rem;
    font-weight: 700;
    border-radius: 4px;
    letter-spacing: 0;
  }
  .brand-name {
    color: #fff;
    font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    white-space: nowrap;
  }
  .desktop-nav {
    display: flex;
    align-items: center;
    gap: clamp(18px, 2.2vw, 34px);
    margin-inline: auto;
  }
  .desktop-nav .nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    color: rgba(255, 255, 255, 0.82);
    font-size: 0.9375rem;
    font-weight: 500;
    padding: 24px 0 22px;
    letter-spacing: 0.02em;
    transition: color var(--transition);
  }
  .desktop-nav .nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 3px;
    background: var(--brass);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
  }
  .desktop-nav .nav-link:hover,
  .desktop-nav .nav-link:focus-visible {
    color: #fff;
  }
  .desktop-nav .nav-link:hover::after,
  .desktop-nav .nav-link:focus-visible::after,
  .desktop-nav .nav-link.active::after {
    transform: scaleX(1);
  }
  .desktop-nav .nav-link.active {
    color: #fff;
  }

  .header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    flex: none;
  }

  .mega-wrap {
    position: relative;
  }
  .mega-trigger {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    border: 1px solid rgba(214, 177, 128, 0.28);
    color: rgba(255, 255, 255, 0.88);
    height: 40px;
    padding: 0 14px;
    border-radius: 6px;
    font-size: 0.875rem;
    cursor: pointer;
    transition: background var(--transition), border-color var(--transition), color var(--transition);
  }
  .mega-trigger:hover,
  .mega-trigger:focus-visible {
    background: rgba(182, 139, 85, 0.14);
    border-color: var(--brass);
    color: #fff;
  }
  .mega-panel {
    position: absolute;
    right: 0;
    top: calc(100% + 10px);
    width: 620px;
    max-width: 88vw;
    background: var(--cream);
    border: 1px solid var(--line);
    border-top: 2px solid var(--brass);
    border-radius: 0 0 14px 14px;
    box-shadow: var(--shadow-soft);
    opacity: 0;
    visibility: hidden;
    transform: translateY(6px);
    transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
    z-index: 90;
  }
  .mega-wrap:hover .mega-panel,
  .mega-wrap:focus-within .mega-panel {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .mega-inner {
    padding: 24px;
    display: grid;
    grid-template-columns: 1fr 1.25fr 0.8fr;
    gap: 26px;
  }
  .mega-label {
    display: block;
    font-size: 0.75rem;
    letter-spacing: 0.22em;
    color: var(--text-sub);
    padding-bottom: 8px;
    margin-bottom: 12px;
    border-bottom: 1px solid var(--line);
  }
  .mega-links {
    display: flex;
    flex-direction: column;
    gap: 6px;
  }
  .mega-links a,
  .mega-news-item a,
  .mega-card {
    color: var(--text-main);
    transition: color var(--transition), padding-left var(--transition);
  }
  .mega-links a {
    display: block;
    padding: 6px 0;
    font-size: 0.9375rem;
  }
  .mega-links a:hover,
  .mega-links a:focus-visible {
    color: var(--pine);
    padding-left: 8px;
  }
  .mega-news-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 9px 0;
    border-bottom: 1px dashed var(--line);
  }
  .mega-news-item a:hover,
  .mega-news-item a:focus-visible {
    color: var(--pine);
  }
  .mega-news-item span {
    font-size: 0.8rem;
    color: var(--text-sub);
  }
  .mega-card {
    border-radius: 12px;
    overflow: hidden;
    background: var(--pine-mist);
    border: 1px solid var(--line);
    display: block;
  }
  .mega-card img {
    width: 100%;
    height: 84px;
    object-fit: cover;
  }
  .mega-card span {
    display: block;
    font-size: 0.8rem;
    padding: 6px 10px 8px;
    line-height: 1.5;
  }
  .mega-card:hover,
  .mega-card:focus-visible {
    border-color: var(--brass);
  }
  .menu-open-btn {
    display: none;
    align-items: center;
    gap: 6px;
    border: 1px solid rgba(214, 177, 128, 0.28);
    color: #fff;
    height: 40px;
    padding: 0 14px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.875rem;
  }
  .mobile-nav-state {
    position: absolute;
    opacity: 0;
    pointer-events: none;
  }
  .mobile-nav-layer {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 96;
    background: var(--pine-deep);
    display: flex;
    flex-direction: column;
    padding: 28px clamp(1.25rem, 5vw, 3.5rem);
    opacity: 0;
    visibility: hidden;
    transform: translateX(12%);
    transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  }
  .mobile-nav-state:checked ~ .mobile-nav-layer {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
  }
  .mobile-nav-close {
    align-self: flex-end;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #fff;
    font-size: 0.875rem;
    border: 1px solid rgba(255, 255, 255, 0.35);
    padding: 9px 14px;
    border-radius: 6px;
    cursor: pointer;
    margin-bottom: 28px;
  }
  .mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: 4px;
  }
  .mobile-nav-links a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 4px;
    color: rgba(255, 255, 255, 0.9);
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    font-size: 1.125rem;
  }
  .mobile-nav-links a:hover,
  .mobile-nav-links a:focus-visible {
    color: var(--brass-light);
    padding-left: 8px;
  }
  .mobile-nav-cta {
    margin-top: 32px;
  }
  @media (max-width: 1023.98px) {
    .desktop-nav,
    .mega-wrap,
    .header-actions > .btn-copper {
      display: none;
    }
    .menu-open-btn {
      display: inline-flex;
    }
    .brand-name {
      font-size: 1rem;
    }
  }
  @media (min-width: 1024px) {
    .mobile-nav-layer,
    .mobile-nav-state {
      display: none;
    }
  }

  .category-hero {
    background-color: var(--pine-deep);
    background-image: linear-gradient(90deg, rgba(11, 34, 30, 0.88), rgba(11, 34, 30, 0.62)),
      url("/assets/images/backpic/back-2.webp");
    background-size: cover;
    background-position: center;
    position: relative;
    color: #fff;
    padding-top: clamp(3rem, 5vw, 5rem);
    padding-bottom: clamp(3rem, 4.5vw, 5rem);
  }
  .breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.66);
    margin-bottom: clamp(2rem, 4vw, 3.6rem);
  }
  .breadcrumb a {
    transition: color var(--transition);
  }
  .breadcrumb a:hover,
  .breadcrumb a:focus-visible {
    color: var(--brass-light);
  }
  .breadcrumb span {
    color: rgba(255, 255, 255, 0.4);
  }
  .category-hero h1 {
    font-size: clamp(2.125rem, 4vw, 3.25rem);
    line-height: 1.16;
    margin: 16px 0 18px;
    max-width: 940px;
  }
  .category-hero .lead {
    max-width: 680px;
    color: rgba(255, 255, 255, 0.82);
    font-size: clamp(1rem, 1.2vw, 1.125rem);
    margin-bottom: 28px;
  }
  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 20px;
  }
  .category-hero-bottom {
    margin-top: clamp(2.6rem, 5vw, 4.5rem);
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding-top: 18px;
  }
  .official-strip {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px 26px;
  }
  .official-item {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.76);
    font-size: 0.875rem;
    white-space: nowrap;
  }
  .official-item i {
    color: var(--brass-light);
    width: 16px;
    text-align: center;
  }
  @media (max-width: 640px) {
    .official-strip {
      display: grid;
      grid-template-columns: 1fr 1fr;
    }
  }

  .feature-section {
    background: var(--sand);
  }
  .feature-split {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: center;
    gap: clamp(2.2rem, 5vw, 5.5rem);
  }
  .feature-media {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--pine-mist);
    box-shadow: var(--shadow-soft);
  }
  .feature-media img {
    width: 100%;
    height: clamp(280px, 34vw, 460px);
    object-fit: cover;
    transition: transform 600ms ease;
  }
  .feature-media:hover img {
    transform: scale(1.02);
  }
  .feature-content h2,
  .dark-block h2,
  .step-section h2,
  .faq-section h2,
  .contact-section h2 {
    font-size: clamp(1.75rem, 3vw, 2.4rem);
    margin: 14px 0 18px;
  }
  .feature-content > p,
  .dark-block .block-intro p,
  .step-section .section-head p,
  .faq-section .section-head p,
  .contact-section .contact-copy p {
    color: var(--text-sub);
  }
  .feature-list {
    list-style: none;
    margin: 28px 0 0;
    padding: 0;
    display: grid;
    gap: 16px;
  }
  .feature-list li {
    padding-left: 18px;
    position: relative;
    line-height: 1.75;
    color: var(--text-main);
  }
  .feature-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 2px;
    background: var(--brass);
  }
  .feature-list li strong {
    color: var(--pine);
  }

  .scope-section,
  .step-section {
    background: var(--pine-deep);
    color: #fff;
  }
  .scope-section .eyebrow,
  .step-section .eyebrow {
    color: var(--brass-light);
  }
  .scope-grid {
    margin-top: clamp(2.4rem, 5vw, 4rem);
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: clamp(2rem, 5vw, 5rem);
    align-items: start;
  }
  .block-intro p {
    color: rgba(255, 255, 255, 0.76);
  }
  .scope-list {
    display: grid;
    gap: 16px;
  }
  .scope-row {
    border: 1px solid rgba(214, 177, 128, 0.26);
    background: rgba(255, 255, 255, 0.025);
    padding: 22px 26px;
    border-radius: var(--radius-md);
    display: grid;
    grid-template-columns: 52px 1fr;
    gap: 4px 18px;
    align-items: start;
    transition: border-color var(--transition), background var(--transition);
  }
  .scope-row:hover {
    border-color: var(--brass);
    background: rgba(255, 255, 255, 0.06);
  }
  .scope-row .step-num {
    grid-row: span 2;
    font-family: "Noto Serif SC", serif;
    font-size: 1.4rem;
    color: var(--brass-light);
    line-height: 1.4;
  }
  .scope-row h3 {
    font-size: 1.25rem;
    margin: 0;
  }
  .scope-row p {
    margin: 6px 0 0;
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.9375rem;
    grid-column: 2;
  }

  .compare-section {
    background: var(--cream);
  }
  .compare-wrap {
    margin-top: clamp(2.4rem, 4vw, 4rem);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: var(--cream);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
  }
  .compare-scroll {
    overflow-x: auto;
  }
  .compare-table {
    width: 100%;
    min-width: 780px;
    border-collapse: collapse;
    font-size: 0.9375rem;
  }
  .compare-table th,
  .compare-table td {
    padding: 16px 20px;
    text-align: left;
    vertical-align: top;
    border-bottom: 1px solid var(--line);
  }
  .compare-table thead th {
    background: #f2ede3;
    color: var(--pine);
    font-weight: 600;
    font-size: 0.8125rem;
    letter-spacing: 0.12em;
    white-space: nowrap;
  }
  .compare-table tbody tr:last-child td {
    border-bottom: none;
  }
  .compare-table .feature-row {
    background: rgba(182, 139, 85, 0.08);
    box-shadow: inset 0 0 0 1px rgba(182, 139, 85, 0.15);
  }
  .level-name {
    font-weight: 700;
    white-space: nowrap;
  }
  .badge-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--clay);
    border: 1px solid rgba(192, 91, 60, 0.28);
    padding: 1px 8px;
    border-radius: 4px;
    margin-left: 5px;
    vertical-align: 2px;
  }
  @media (max-width: 640px) {
    .compare-table th,
    .compare-table td {
      padding: 12px 14px;
    }
  }

  .step-section {
    background: var(--pine-deep);
  }
  .section-head {
    max-width: 720px;
    margin-bottom: clamp(2.2rem, 4vw, 3.4rem);
  }
  .steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
    counter-reset: step;
  }
  .step-card {
    border-top: 1px solid rgba(214, 177, 128, 0.28);
    padding-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-height: 180px;
    position: relative;
    transition: border-color var(--transition);
  }
  .step-card:hover {
    border-color: var(--brass);
  }
  .step-card .step-num {
    font-family: "Noto Serif SC", serif;
    color: var(--brass-light);
    font-size: 1.625rem;
  }
  .step-card h3 {
    margin: 8px 0 0;
    font-size: 1.25rem;
  }
  .step-card p {
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.9rem;
    margin: 0;
  }
  @media (max-width: 1023.98px) {
    .feature-split,
    .scope-grid {
      grid-template-columns: 1fr;
    }
    .steps-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  @media (max-width: 600px) {
    .steps-grid {
      grid-template-columns: 1fr;
    }
  }

  .faq-section {
    background: var(--sand);
  }
  .faq-section .section-head p {
    color: var(--text-sub);
  }
  .faq-layout {
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: clamp(2rem, 5vw, 5rem);
  }
  .faq-list {
    display: grid;
    gap: 10px;
  }
  .faq-item {
    background: var(--cream);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    transition: border-color var(--transition);
  }
  .faq-item[open],
  .faq-item:hover {
    border-color: rgba(182, 139, 85, 0.55);
  }
  .faq-item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 16px 18px;
    cursor: pointer;
    list-style: none;
    font-weight: 600;
    color: var(--text-main);
    transition: color var(--transition);
  }
  .faq-item summary::-webkit-details-marker {
    display: none;
  }
  .faq-item summary i {
    color: var(--brass);
    font-size: 0.85rem;
    transition: transform var(--transition);
    flex: none;
  }
  .faq-item[open] summary {
    color: var(--pine);
  }
  .faq-item[open] summary i {
    transform: rotate(45deg);
  }
  .faq-body {
    padding: 0 18px 16px;
    color: var(--text-sub);
    font-size: 0.95rem;
  }
  .faq-body p {
    margin: 0 0 8px;
  }
  @media (max-width: 1023.98px) {
    .faq-layout {
      grid-template-columns: 1fr;
    }
  }

  .contact-section {
    background: var(--pine-deep);
    color: #fff;
    border-top: 1px solid rgba(182, 139, 85, 0.3);
  }
  .contact-layout {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: clamp(2.5rem, 6vw, 6rem);
    align-items: start;
  }
  .contact-copy h2 {
    margin: 14px 0 18px;
  }
  .contact-copy p {
    color: rgba(255, 255, 255, 0.78);
  }
  .contact-nav p {
    font-size: 0.8125rem;
    letter-spacing: 0.14em;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 10px;
  }
  .contact-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
  }
  .contact-links a {
    display: inline-flex;
    align-items: center;
    min-height: 38px;
    padding: 0 14px;
    border: 1px solid rgba(255, 255, 255, 0.24);
    border-radius: 6px;
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.875rem;
    transition: background var(--transition), border-color var(--transition), color var(--transition);
  }
  .contact-links a:hover,
  .contact-links a:focus-visible {
    border-color: var(--brass);
    background: rgba(182, 139, 85, 0.18);
    color: #fff;
  }
  .contact-card {
    background: var(--cream);
    color: var(--text-main);
    border-radius: var(--radius-lg);
    padding: clamp(1.5rem, 3vw, 2.4rem);
    box-shadow: var(--shadow-soft);
  }
  .lead-form {
    display: grid;
    gap: 18px;
  }
  .form-row {
    display: grid;
    gap: 6px;
  }
  .form-row label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--pine);
  }
  .form-row input,
  .form-row select,
  .form-row textarea {
    width: 100%;
    height: 48px;
    padding: 0 14px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #fff;
    color: var(--text-main);
    font-size: 0.9375rem;
    transition: border-color var(--transition), box-shadow var(--transition);
  }
  .form-row textarea {
    height: 112px;
    padding-top: 12px;
    resize: vertical;
  }
  .form-row input:focus,
  .form-row select:focus,
  .form-row textarea:focus {
    outline: none;
    border-color: var(--brass);
    box-shadow: 0 0 0 3px rgba(182, 139, 85, 0.16);
  }
  .form-note {
    font-size: 0.8125rem;
    color: var(--text-sub);
    margin: 0;
    line-height: 1.6;
  }
  .contact-card .btn {
    width: 100%;
    margin-top: 4px;
  }
  @media (max-width: 1023.98px) {
    .contact-layout {
      grid-template-columns: 1fr;
    }
  }

  .site-footer {
    background: #0b1714;
    color: rgba(255, 255, 255, 0.74);
    border-top: 1px solid rgba(182, 139, 85, 0.35);
  }
  .footer-top {
    display: grid;
    grid-template-columns: 1.4fr 0.8fr 0.9fr 1.1fr;
    gap: 34px;
    padding-block: clamp(3rem, 6vw, 4.5rem) clamp(2rdm, 4vw, 3rem);
  }
  .footer-top .footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    font-family: "Noto Serif SC", serif;
    font-size: 1.1rem;
    font-weight: 700;
  }
  .footer-brand .brand-mark {
    width: 34px;
    height: 34px;
    font-size: 0.75rem;
  }
  .footer-about {
    font-size: 0.90625rem;
    line-height: 1.85;
    margin: 16px 0 0;
    color: rgba(255, 255, 255, 0.6);
    max-width: 340px;
  }
  .footer-title {
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    margin: 0 0 14px;
  }
  .footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 8px;
    font-size: 0.875rem;
  }
  .footer-links a,
  .footer-links li {
    color: rgba(255, 255, 255, 0.66);
    transition: color var(--transition), padding-left var(--transition);
  }
  .footer-links a {
    display: inline-block;
  }
  .footer-links a:hover,
  .footer-links a:focus-visible {
    color: var(--brass-light);
    padding-left: 6px;
  }
  .footer-links i {
    color: var(--brass);
    width: 18px;
    margin-right: 2px;
  }
  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 10px;
    padding: 18px 0;
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.48);
  }
  @media (max-width: 1023.98px) {
    .footer-top {
      grid-template-columns: 1fr 1fr;
    }
  }
  @media (max-width: 640px) {
    .footer-top {
      grid-template-columns: 1fr;
    }
    .footer-bottom {
      flex-direction: column;
    }
  }

/* roulang page: category3 */
:root{
  --pine-deep:#0B221E;
  --pine:#143B32;
  --pine-medium:#1F5548;
  --pine-mist:#E4ECE8;
  --brass:#B68B55;
  --brass-light:#D3B080;
  --sand:#F5F0E6;
  --cream:#FBF8F1;
  --line:#E3DCCE;
  --text-main:#22312C;
  --text-sub:#5E716A;
  --clay:#C05B3C;
  --radius-sm:6px;
  --radius-md:12px;
  --radius-lg:20px;
  --shadow-card:0 2px 12px rgba(11,34,30,0.05);
  --shadow-card-hover:0 18px 40px rgba(11,34,30,0.12);
  --font-ui:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --ease:cubic-bezier(0.22,0.61,0.36,1);
}

*,*::before,*::after{box-sizing:border-box;}
*{margin:0;padding:0;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  font-family:var(--font-ui);
  background:var(--sand);
  color:var(--text-main);
  line-height:1.85;
  font-size:1rem;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{list-style:none;}
h1,h2,h3,h4{line-height:1.28;text-wrap:balance;}
.container{
  width:min(calc(100% - 2rem),1240px);
  margin-inline:auto;
}
.section{padding-block:clamp(3.5rem,8vw,6.5rem);}
.section-tint{background:var(--cream);}
.container-slim{width:min(calc(100% - 2rem),900px);margin-inline:auto;}

.skip-link{
  position:absolute;left:-999px;top:0;z-index:200;
  background:var(--brass);color:#fff;padding:.75rem 1rem;border-radius:var(--radius-sm);
}
.skip-link:focus{left:1rem;top:1rem;}

/* ===== header ===== */
.nav-toggle{position:fixed;opacity:0;pointer-events:none;z-index:-1;}
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(11,34,30,0.92);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(182,139,85,0.3);
}
.header-inner{
  display:flex;align-items:center;gap:1.25rem;
  min-height:78px;
}
.brand{display:inline-flex;align-items:center;gap:.75rem;flex-shrink:0;}
.brand-mark{
  width:2.5rem;height:2.5rem;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--brass);border-radius:8px;
  color:var(--brass-light);
  font-weight:700;font-size:.9rem;letter-spacing:.05em;
  background:rgba(182,139,85,0.1);
}
.brand-name{
  color:#fff;font-weight:600;
  font-size:1.05rem;letter-spacing:.04em;line-height:1.2;
}
.desktop-nav{
  display:none;align-items:center;
  gap:clamp(1rem,2.2vw,2rem);margin-left:auto;
}
.nav-link{
  color:rgba(255,255,255,.82);
  font-size:.9375rem;font-weight:500;
  letter-spacing:.03em;
  padding:.5rem 0;position:relative;
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;bottom:-3px;left:0;width:100%;height:2px;
  background:var(--brass-light);border-radius:2px;
  transform:scaleX(0);transform-origin:center;transition:transform .24s var(--ease);
}
.nav-link:hover,.nav-link:focus-visible{color:#fff;outline:none;}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:#fff;font-weight:600;}

.header-actions{display:flex;align-items:center;gap:.75rem;margin-left:.25rem;}
.header-cta{flex-shrink:0;}

.mega-wrap{position:relative;display:none;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:.45rem;
  background:transparent;border:1px solid rgba(183,139,85,.4);
  color:rgba(255,255,255,.9);font-size:.875rem;
  height:38px;padding:0 1rem;border-radius:var(--radius-sm);
  cursor:pointer;letter-spacing:.04em;transition:all .2s var(--ease);
}
.mega-trigger i{font-size:.75rem;transition:transform .2s var(--ease);}
.mega-wrap:hover .mega-trigger i,.mega-wrap:focus-within .mega-trigger i{transform:rotate(180deg);}
.mega-trigger:hover,.mega-trigger:focus-visible{
  background:rgba(182,139,85,.14);color:#fff;outline:none;border-color:var(--brass);
}
.mega-panel{
  position:absolute;right:-.25rem;top:calc(100% + 1.2rem);
  width:640px;background:var(--cream);
  border-top:3px solid var(--brass);
  border-radius:0 0 var(--radius-lg) var(--radius-lg);
  box-shadow:0 24px 70px rgba(7,25,20,.28);
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s;
  overflow:hidden;
}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{
  opacity:1;visibility:visible;transform:translateY(0);
}
.mega-inner{
  display:grid;grid-template-columns:.9fr 1.05fr 1.15fr;
  gap:1.75rem;padding:1.75rem 1.9rem;
}
.mega-col{display:flex;flex-direction:column;gap:.7rem;}
.mega-label{
  font-size:.7rem;font-weight:700;letter-spacing:.28em;
  color:var(--brass);text-transform:uppercase;
}
.mega-links{display:flex;flex-direction:column;gap:.35rem;}
.mega-links a{
  color:var(--text-main);font-size:.9375rem;padding:.3rem 0;
  border-bottom:1px solid rgba(35,49,44,.06);
  transition:color .2s ease,padding-left .2s ease;
}
.mega-links a:hover,.mega-links a:focus-visible{color:var(--brass);padding-left:.45rem;outline:none;}
.mega-news-item{
  font-size:.8125rem;color:var(--text-main);line-height:1.5;
  padding:.5rem 0;border-bottom:1px dashed var(--line);
}
.mega-news-item a{display:block;color:var(--text-main);transition:color .2s;}
.mega-news-item a:hover,.mega-news-item a:focus-visible{color:var(--brass);outline:none;}
.mega-news-item span{color:var(--text-sub);font-size:.75rem;}
.mega-card{
  display:block;border-radius:var(--radius-md);overflow:hidden;
  background:var(--pine);color:#fff;
}
.mega-card img{height:118px;width:100%;object-fit:cover;}
.mega-card span{
  display:block;padding:.75rem .85rem;font-size:.875rem;line-height:1.45;
  color:rgba(255,255,255,.9);
}
.mega-card:hover span,.mega-card:focus-visible span{color:var(--brass-light);}
.mega-card:focus-visible{outline:2px solid var(--brass);outline-offset:2px;}

.mobile-backdrop{
  position:fixed;inset:0;background:rgba(7,22,19,.68);
  z-index:150;opacity:0;pointer-events:none;
  transition:opacity .3s ease;
  -webkit-backdrop-filter:blur(2px);
  backdrop-filter:blur(2px);
}
.mobile-drawer{
  position:fixed;top:0;right:0;width:min(88vw,350px);height:100dvh;
  background:var(--cream);z-index:160;
  transform:translateX(105%);
  transition:transform .32s var(--ease);
  display:flex;flex-direction:column;
  box-shadow:-24px 0 60px rgba(7,25,20,.3);
}
.nav-toggle:checked ~ .mobile-backdrop{opacity:1;pointer-events:auto;}
.nav-toggle:checked ~ .mobile-drawer{transform:translateX(0);}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:1.1rem 1.25rem;background:var(--pine-deep);color:#fff;
}
.drawer-brand{display:flex;align-items:center;gap:.6rem;font-weight:600;}
.drawer-brand .brand-mark{width:2.1rem;height:2.1rem;font-size:.72rem;}
.drawer-close{
  width:2rem;height:2rem;display:inline-flex;align-items:center;justify-content:center;
  color:#fff;border-radius:6px;cursor:pointer;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);
  transition:background .2s,border-color .2s;
}
.drawer-close:hover,.drawer-close:focus-visible{background:var(--brass);outline:none;border-color:var(--brass);}
.drawer-nav{padding:1.25rem;display:flex;flex-direction:column;gap:.25rem;flex:1;}
.drawer-nav a{
  padding:.85rem .8rem;color:var(--text-main);
  border-bottom:1px solid var(--line);
  font-size:1rem;letter-spacing:.03em;
  display:flex;align-items:center;gap:.65rem;
}
.drawer-nav a i{color:var(--brass);font-size:.8rem;}
.drawer-nav a:hover,.drawer-nav a:focus-visible{
  color:var(--brass);background:rgba(182,139,85,.06);outline:none;
}
.drawer-nav a.active-drawer{color:var(--brass);font-weight:700;}
.drawer-contact{
  padding:1.15rem 1.25rem;border-top:1px solid var(--line);
  background:var(--sand);color:var(--text-sub);font-size:.875rem;
}
.drawer-contact .btn{width:100%;justify-content:center;margin-bottom:.6rem;}
.btn-menu-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:8px;color:#fff;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
  cursor:pointer;transition:background .2s ease;
}
.btn-menu-toggle:hover,.btn-menu-toggle:focus-visible{background:rgba(182,139,85,.3);outline:none;border-color:var(--brass);}

/* ===== buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  gap:.55rem;height:48px;padding:0 1.45rem;
  border-radius:6px;font-size:.9375rem;font-weight:600;
  letter-spacing:.05em;border:1px solid transparent;
  cursor:pointer;transition:all .22s var(--ease);
  line-height:1;
  white-space:nowrap;
}
.btn i{font-size:.85rem;}
.btn-sm{height:40px;padding:0 1.1rem;font-size:.875rem;}
.btn-lg{height:52px;padding:0 1.9rem;font-weight:700;}
.btn-pine{background:var(--pine);color:#fff;border-color:var(--pine);}
.btn-pine:hover,.btn-pine:focus-visible{background:var(--pine-medium);border-color:var(--pine-medium);outline:none;transform:translateY(-1px);}
.btn-brass{background:transparent;color:var(--brass-light);border-color:var(--brass);}
.btn-brass:hover,.btn-brass:focus-visible{background:var(--brass);border-color:var(--brass);color:#fff;outline:none;}
.btn-white{background:#fff;color:var(--pine-deep);border-color:#fff;}
.btn-white:hover,.btn-white:focus-visible{background:var(--cream);border-color:var(--cream);outline:none;}

/* ===== category banner ===== */
.cat-banner{
  position:relative;background:var(--pine-deep);color:#fff;
  padding:clamp(3.5rem,7vw,5.5rem) 0 clamp(3rem,6vw,5rem);
  overflow:hidden;
  border-bottom:1px solid rgba(182,139,85,.45);
}
.cat-banner-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center 60%;
  opacity:.2;
}
.cat-banner-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,34,30,.98) 10%,rgba(11,34,30,.74) 52%,rgba(11,34,30,.94) 100%);
}
.cat-banner-content{position:relative;z-index:2;}
.breadcrumb{
  display:inline-flex;align-items:center;flex-wrap:wrap;
  gap:.55rem;color:rgba(255,255,255,.55);font-size:.8125rem;
  margin-bottom:1.5rem;
}
.breadcrumb a{color:rgba(255,255,255,.72);transition:color .2s ease;}
.breadcrumb a:hover,.breadcrumb a:focus-visible{color:var(--brass-light);outline:none;}
.cat-kicker{
  display:block;font-size:.8125rem;letter-spacing:.3em;
  color:var(--brass-light);font-weight:600;
  text-transform:uppercase;margin-bottom:1rem;
}
.category-h1{
  font-family:var(--font-serif);
  font-size:clamp(2rem,4.4vw,3.6rem);
  font-weight:700;color:#fff;
  line-height:1.18;letter-spacing:.01em;
  margin-bottom:1.4rem;max-width:16ch;
}
.category-h1 .mark-text{color:var(--brass-light);}
.cat-lead{
  color:rgba(255,255,255,.78);
  font-size:1.05rem;line-height:1.9;max-width:760px;
  margin-bottom:2rem;
}
.cat-band-tag{
  display:flex;flex-wrap:wrap;gap:.55rem 1.6rem;
  padding-top:1.5rem;border-top:1px solid rgba(182,139,85,.32);
  color:rgba(255,255,255,.6);font-size:.875rem;
}
.cat-tag{display:inline-flex;align-items:center;gap:.4rem;letter-spacing:.04em;}
.cat-tag::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--brass);}

/* ===== section heading ===== */
.kicker{
  display:block;font-size:.8125rem;font-weight:700;
  letter-spacing:.26em;color:var(--brass);
  margin-bottom:.9rem;text-transform:uppercase;
}
.h2{
  font-family:var(--font-serif);
  font-size:clamp(1.55rem,3vw,2.4rem);
  font-weight:700;color:var(--text-main);
  line-height:1.32;letter-spacing:.01em;
  margin-bottom:1rem;
}
.section-sub{
  color:var(--text-sub);max-width:720px;font-size:1rem;line-height:1.9;
}
.section-head-grid{
  display:grid;grid-template-columns:1.2fr 1fr;
  gap:2rem;align-items:end;margin-bottom:2.5rem;
}
.section-head-grid .section-sub{margin-bottom:.3rem;}
@media (max-width:760px){
  .section-head-grid{grid-template-columns:1fr;gap:1rem;}
}

/* ===== cooperation module ===== */
.coop-grid{
  display:grid;grid-template-columns:1.05fr .95fr;
  gap:clamp(1.75rem,4vw,4rem);align-items:center;
}
.media-frame{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-card);
}
.media-frame img{width:100%;height:100%;object-fit:cover;transition:transform .55s var(--ease);}
.media-frame:hover img{transform:scale(1.04);}
.media-frame::after{
  content:"";position:absolute;inset:12px;border:1px solid rgba(255,255,255,.28);
  border-radius:calc(var(--radius-lg) - 8px);pointer-events:none;
}
.coop-media{aspect-ratio:5/4;}
.coop-body h2{margin-bottom:1.25rem;}
.coop-body .section-sub{margin-bottom:1.8rem;}
.definition-list{display:flex;flex-direction:column;gap:1.25rem;}
.definition-list li{
  position:relative;padding-left:1.35rem;
  border-bottom:1px solid var(--line);padding-bottom:1.1rem;
}
.definition-list li:last-child{border-bottom:none;padding-bottom:0;}
.definition-list li::before{
  content:"";position:absolute;left:0;top:.45rem;
  width:5px;height:calc(100% - .4rem);background:var(--brass);border-radius:3px;
  transition:height .25s ease;
}
.definition-list strong{display:block;font-weight:700;font-size:1rem;letter-spacing:.02em;margin-bottom:.35rem;}
.definition-list em{font-style:normal;color:var(--text-sub);font-size:.9375rem;line-height:1.75;}
@media (max-width:900px){
  .coop-grid{grid-template-columns:1fr;}
}

/* ===== collaboration rows module ===== */
.collab-head{text-align:center;max-width:760px;margin:0 auto 3rem;}
.collab-head .kicker{text-align:center;}
.collab-list{
  border-top:1px solid var(--line);
}
.collab-row{
  display:grid;grid-template-columns:60px 1fr 1.2fr;
  gap:1.25rem 2rem;padding:1.5rem .35rem;
  border-bottom:1px solid var(--line);
  align-items:start;
  transition:background .2s ease,padding-left .2s ease;
}
.collab-row:hover{background:rgba(182,139,85,.05);padding-left:.9rem;}
.collab-no{
  font-family:var(--font-serif);font-size:2rem;color:var(--brass);
  font-weight:700;line-height:1;letter-spacing:.05em;
  padding-top:.15rem;
}
.collab-title h3{font-size:1.1rem;font-weight:700;letter-spacing:.02em;margin-bottom:.35rem;}
.collab-title span{color:var(--brass);font-size:.75rem;letter-spacing:.2em;}
.collab-desc p{color:var(--text-sub);line-height:1.85;}
@media (max-width:760px){
  .collab-row{grid-template-columns:1fr;gap:.8rem;}
  .collab-no{padding-top:0;}
}

/* ===== deep info band ===== */
.deep-band{
  background:var(--pine-deep);color:#fff;position:relative;
  overflow:hidden;
}
.deep-band::before{
  content:"";position:absolute;width:420px;height:420px;
  border:1px solid rgba(182,139,85,.25);border-radius:50%;
  right:-120px;top:-160px;pointer-events:none;
}
.deep-band .container{position:relative;z-index:2;}
.deep-tag{
  display:grid;grid-template-columns:1fr 1.3fr;
  gap:clamp(2rem,5vw,5rem);padding-block:clamp(3rem,7vw,5rem);
  align-items:center;
}
.deep-copy h2{
  font-family:var(--font-serif);
  font-size:clamp(1.6rem,3vw,2.4rem);
  line-height:1.4;color:#fff;margin-bottom:1.2rem;
}
.deep-copy p{color:rgba(255,255,255,.72);line-height:1.9;margin-bottom:1.2rem;}
.deep-copy .btn{background:var(--brass);border-color:var(--brass);color:#fff;}
.deep-copy .btn:hover{background:var(--brass-light);border-color:var(--brass-light);}
.deep-num{display:flex;flex-direction:column;gap:2rem;}
.num-block{
  border-bottom:1px solid rgba(182,139,85,.35);
  padding-bottom:1.4rem;
}
.num-block .num-value{
  font-family:var(--font-serif);font-size:clamp(2rem,4vw,3.5rem);
  line-height:1;color:var(--brass-light);font-weight:700;
  letter-spacing:-.02em;font-variant-numeric:tabular-nums;
}
.num-block .num-label{
  margin-top:.65rem;color:rgba(255,255,255,.72);
  font-size:.9375rem;letter-spacing:.05em;
}
@media (max-width:780px){
  .deep-tag{grid-template-columns:1fr;}
}

/* ===== process timeline ===== */
.process-wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem;position:relative;margin-top:2.5rem;}
.process-line{
  position:absolute;top:40px;left:10%;right:10%;height:1px;
  background:linear-gradient(90deg,var(--brass),var(--line),var(--brass));
  opacity:.6;
}
.process-step{
  position:relative;background:var(--cream);
  border:1px solid var(--line);border-radius:var(--radius-md);
  padding:2rem 1.4rem 1.5rem;transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s;
}
.process-step:hover{
  transform:translateY(-4px);border-color:rgba(182,139,85,.55);
  box-shadow:var(--shadow-card-hover);
}
.process-step .step-no{
  width:56px;height:56px;display:flex;align-items:center;justify-content:center;
  background:var(--pine);color:#fff;border-radius:16px;
  font-family:var(--font-serif);font-weight:700;font-size:1.25rem;
  box-shadow:0 8px 24px rgba(20,59,50,.28);
  margin-bottom:1.2rem;
}
.process-step h3{font-size:1.05rem;font-weight:700;margin-bottom:.5rem;color:var(--text-main);}
.process-step p{color:var(--text-sub);font-size:.875rem;line-height:1.7;}
@media (max-width:1024px){
  .process-wrap{grid-template-columns:1fr 1fr;}
  .process-line{display:none;}
}
@media (max-width:600px){
  .process-wrap{grid-template-columns:1fr;}
}

/* ===== faq ===== */
.faq-wrap{max-width:820px;margin:2.5rem auto 0;}
.faq-item{
  background:var(--cream);border:1px solid var(--line);
  border-radius:var(--radius-md);margin-bottom:.75rem;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:rgba(182,139,85,.5);box-shadow:var(--shadow-card);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:1rem;padding:1.2rem 1.45rem;
  font-weight:600;color:var(--text-main);letter-spacing:.01em;
  font-size:.975rem;
  position:relative;transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:0 0 1.6rem;width:1.6rem;height:1.6rem;
  display:flex;align-items:center;justify-content:center;
  font-size:1rem;font-weight:500;color:var(--brass);
  border:1px solid var(--brass);border-radius:50%;
  transition:transform .24s var(--ease),background .2s,color .2s;
}
.faq-item summary:hover{color:var(--brass);}
.faq-item[open] summary{color:var(--pine);border-bottom:1px solid var(--line);}
.faq-item[open] summary::after{transform:rotate(45deg);background:var(--brass);color:#fff;}
.faq-item summary:focus-visible{outline:2px solid var(--brass);outline-offset:-2px;border-radius:var(--radius-md);}
.faq-answer{padding:1.15rem 1.45rem 1.4rem;color:var(--text-sub);font-size:.9375rem;line-height:1.85;}
.faq-answer strong{color:var(--text-main);font-weight:600;}

/* ===== contact / CTA ===== */
.contact-section{
  background:var(--pine-deep);color:#fff;
  padding:clamp(3.5rem,7vw,6rem) 0;
  position:relative;overflow:hidden;
}
.contact-section .container{position:relative;z-index:2;}
.contact-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:clamp(2rem,6vw,5rem);align-items:start;}
.contact-heading h2{
  font-family:var(--font-serif);
  font-size:clamp(1.8rem,3.2vw,2.7rem);
  color:#fff;line-height:1.3;margin:.8rem 0 1.3rem;
}
.contact-heading p{color:rgba(255,255,255,.72);line-height:1.9;margin-bottom:1.2rem;}
.contact-list{display:flex;flex-direction:column;gap:.8rem;margin-top:1.8rem;}
.contact-list li{display:flex;gap:.8rem;align-items:flex-start;color:rgba(255,255,255,.85);font-size:.9375rem;}
.contact-list li i{color:var(--brass);margin-top:.35rem;}

.form-card{
  background:var(--cream);color:var(--text-main);
  border-radius:var(--radius-lg);padding:2.4rem 2rem;
  box-shadow:0 34px 80px rgba(0,0,0,.3);
}
.form-card h3{
  font-family:var(--font-serif);font-size:1.45rem;font-weight:700;
  color:var(--text-main);margin-bottom:.5rem;
}
.form-note{font-size:.875rem;color:var(--text-sub);margin-bottom:1.8rem;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;}
.form-field{display:flex;flex-direction:column;gap:.4rem;}
.form-field.full{grid-column:1 / -1;}
.form-field label{
  font-size:.8125rem;letter-spacing:.06em;font-weight:600;color:var(--text-main);
}
.form-field input,.form-field select,.form-field textarea{
  height:48px;width:100%;
  border:1px solid var(--line);background:#fff;
  border-radius:var(--radius-sm);padding:0 .85rem;
  font-size:.9375rem;color:var(--text-main);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-field textarea{height:110px;padding:.7rem .85rem;resize:vertical;}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  outline:none;border-color:var(--brass);
  box-shadow:0 0 0 3px rgba(182,139,85,.2);
}
.form-submit{margin-top:1.5rem;}
.form-privacy{
  font-size:.8125rem;color:var(--text-sub);line-height:1.7;margin-top:1rem;
}
@media (max-width:900px){
  .contact-grid{grid-template-columns:1fr;}
}

/* ===== footer ===== */
.site-footer{
  background:var(--pine-deep);color:rgba(255,255,255,.82);
  border-top:1px solid rgba(182,139,85,.4);
  padding-top:clamp(3rem,6vw,4.5rem);
}
.footer-top{
  display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;
  gap:2.2rem;padding-bottom:2.5rem;
}
.footer-brand{display:flex;align-items:center;gap:.7rem;font-weight:700;font-size:1.1rem;color:#fff;}
.footer-brand .brand-mark{font-size:.82rem;}
.footer-about{
  margin-top:1.1rem;font-size:.875rem;color:rgba(255,255,255,.6);line-height:1.9;max-width:360px;
}
.footer-title{
  color:#fff;font-size:.9375rem;font-weight:600;letter-spacing:.04em;margin-bottom:1rem;
}
.footer-links{display:flex;flex-direction:column;gap:.65rem;font-size:.875rem;}
.footer-links a{color:rgba(255,255,255,.67);transition:color .2s,padding-left .2s;}
.footer-links a:hover,.footer-links a:focus-visible{color:var(--brass-light);padding-left:.3rem;outline:none;}
.footer-links li{display:flex;gap:.6rem;align-items:flex-start;color:rgba(255,255,255,.67);font-size:.875rem;}
.footer-links i{color:var(--brass);margin-top:.35rem;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:1.5rem 0;font-size:.8125rem;color:rgba(255,255,255,.48);
  display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;
}

/* ===== responsive helpers ===== */
@media (min-width:1024px){
  .desktop-nav{display:flex;}
  .mega-wrap{display:block;}
  .btn-menu-toggle{display:none;}
}
@media (max-width:1023px){
  .header-cta{display:none;}
  .header-inner{gap:1rem;}
  .brand-name{font-size:.95rem;letter-spacing:.01em;}
  .brand-mark{width:2.1rem;height:2.1rem;font-size:.78rem;}
}
@media (max-width:600px){
  .footer-top{grid-template-columns:1fr 1fr;}
  .footer-brand-col{grid-column:1 / -1;}
}
@media (max-width:520px){
  .footer-top{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .brand-name{font-size:.88rem;max-width:12rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
}

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

/* roulang page: category1 */
:root{
    --pine-deep:#0B221E;
    --pine:#143B32;
    --pine-medium:#1F5548;
    --pine-mist:#E4ECE8;
    --brass:#B68B55;
    --brass-light:#D3B080;
    --sand:#F5F0E6;
    --cream:#FBF8F1;
    --line:#E3DCCE;
    --text-main:#22312C;
    --text-sub:#5E716A;
    --clay:#C05B3C;
    --radius-sm:5px;
    --radius-md:12px;
    --radius-lg:20px;
    --radius-xl:28px;
    --shadow-soft:0 2px 10px rgba(11,34,30,.06),0 20px 44px rgba(11,34,30,.08);
    --ease:cubic-bezier(.22,.61,.36,1);
  }
  *,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    background:var(--sand);
    color:var(--text-main);
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,.font-serif-display{
    font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
    color:var(--text-main);
    font-weight:700;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none;transition:color .22s var(--ease),transform .24s var(--ease)}
  button{font:inherit;cursor:pointer;border:none;background:none}
  input,select,textarea{font:inherit}
  .container{max-width:1240px;margin-inline:auto;padding-inline:clamp(1rem,4vw,2rem)}
  .section-pad{padding-block:clamp(4rem,8vw,6.5rem)}
  .bg-deep{background:var(--pine-deep)}
  .bg-pine{background:var(--pine)}
  .bg-cream{background:var(--cream)}
  .bg-mist{background:var(--pine-mist)}

  .kicker{
    display:inline-flex;align-items:center;gap:.7rem;
    font-size:.8125rem;letter-spacing:.25em;text-transform:uppercase;
    color:var(--brass);font-weight:600;
  }
  .kicker::before{content:"";width:26px;height:1px;background:var(--brass)}
  .kicker.kicker-light{color:var(--brass-light)}
  .section-head{
    display:flex;align-items:flex-end;justify-content:space-between;
    gap:2rem;margin-bottom:clamp(2.2rem,4vw,3.4rem);
  }
  .section-title{font-size:clamp(1.75rem,2.8vw,2.5rem);line-height:1.25;letter-spacing:.01em;margin-top:.6rem}
  .section-title.light{color:#fff}
  .section-desc{max-width:520px;color:var(--text-sub);font-size:1rem}

  /* buttons */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;
    gap:.5rem;border-radius:8px;padding:.72rem 1.5rem;
    font-size:.9375rem;letter-spacing:.04em;line-height:1.2;
    transition:all .22s var(--ease);min-height:48px;font-weight:600;
  }
  .btn-copper{
    background:var(--brass);color:#fff;box-shadow:inset 0 0 0 1px rgba(255,255,255,.08);
  }
  .btn-copper:hover{background:var(--brass-light);color:#fff;transform:translateY(-2px)}
  .btn-ghost{
    background:transparent;color:#fff;box-shadow:inset 0 0 0 1px var(--brass);
  }
  .btn-ghost:hover{background:var(--brass);color:#fff;transform:translateY(-2px)}
  .btn-pine{
    background:var(--pine);color:#fff;
    box-shadow:inset 0 0 0 1px rgba(255,255,255,.06);
  }
  .btn-pine:hover{background:var(--pine-medium);color:#fff;transform:translateY(-2px)}
  .btn-sm{min-height:40px;padding:.45rem 1.15rem;font-size:.875rem;border-radius:6px}

  /* Header */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(11,34,30,.92);
    backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid rgba(182,139,85,.35);
  }
  .header-inner{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:78px}
  .header-inner .brand{
    display:inline-flex;align-items:center;gap:.6rem;flex-shrink:0;
    font-family:"Noto Serif SC",serif;color:#fff;font-weight:700;font-size:1rem;letter-spacing:.02em;
  }
  .brand-mark{
    display:inline-flex;align-items:center;justify-content:center;width:2.05rem;height:2.05rem;
    background:var(--brass);border-radius:4px;color:#fff;font-size:.8rem;letter-spacing:.04em;
  }
  .desktop-nav{display:flex;align-items:center;gap:clamp(1.4rem,2vw,2.4rem);margin-left:auto}
  .nav-link{
    position:relative;padding:6px 2px;color:rgba(255,255,255,.84);font-size:.9375rem;
    letter-spacing:.05em;white-space:nowrap;
  }
  .nav-link:hover{color:#fff}
  .nav-link::after{
    content:"";position:absolute;left:0;bottom:-4px;height:3px;width:100%;
    background:var(--brass);opacity:0;transform:scaleX(.4);transition:opacity .2s var(--ease),transform .2s var(--ease);
  }
  .nav-link:hover::after,.nav-link.active::after{opacity:1;transform:scaleX(1)}
  .header-actions{display:flex;align-items:center;gap:1.05rem;margin-left:1rem}
  .mega-wrap{position:relative}
  .mega-trigger{
    display:inline-flex;align-items:center;gap:.3rem;
    color:rgba(255,255,255,.86);font-size:.875rem;padding:.5rem .2rem;
  }
  .mega-trigger:hover,.mega-wrap:focus-within .mega-trigger{color:#fff}
  .mega-panel{
    position:absolute;right:-10px;top:calc(100% + 10px);width:620px;max-width:90vw;
    background:var(--cream);border:1px solid var(--line);border-top:2px solid var(--brass);
    border-radius:var(--radius-md);box-shadow:var(--shadow-soft);
    opacity:0;visibility:hidden;transform:translateY(10px);
    transition:all .24s var(--ease);
  }
  .mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{
    opacity:1;visibility:visible;transform:translateY(0);
  }
  .mega-inner{
    display:grid;grid-template-columns:1.2fr 1fr .8fr;gap:2rem;padding:2rem 2rem 1.8rem;
  }
  .mega-label{
    display:block;font-size:.6875rem;letter-spacing:.24em;color:var(--text-sub);
    margin-bottom:1rem;text-transform:uppercase;
  }
  .mega-links{display:flex;flex-direction:column;gap:.55rem}
  .mega-links a{
    display:block;padding:.55rem .15rem;border-bottom:1px solid var(--line);
    color:var(--text-main);font-weight:500;font-size:.925rem;
  }
  .mega-links a:hover{color:var(--pine);padding-left:8px;border-color:var(--brass)}
  .mega-news-item{
    display:flex;align-items:center;justify-content:space-between;gap:.5rem;
    padding:.35rem 0;font-size:.9rem;
  }
  .mega-news-item a{color:var(--text-main);flex:1}
  .mega-news-item a:hover{color:var(--pine)}
  .mega-news-item span{flex-shrink:0;font-size:.67rem;color:var(--text-sub);border:1px solid var(--line);border-radius:18px;padding:.05rem .55rem}
  .mega-card{
    display:block;overflow:hidden;border-radius:var(--radius-md);border:1px solid var(--line);
    background:var(--cream);color:var(--text-main);box-shadow:0 6px 22px rgba(11,34,30,.08);
  }
  .mega-card img{width:100%;height:74px;object-fit:cover}
  .mega-card span{display:block;font-size:.8rem;line-height:1.5;padding:8px 8px 10px}
  .menu-open-btn{display:none;width:42px;height:42px;align-items:center;justify-content:center;color:#fff;border:1px solid rgba(255,255,255,.4);border-radius:8px}
  .mobile-nav-panel{
    position:fixed;inset:0 auto 0 0;width:min(400px,88vw);background:var(--pine-deep);
    z-index:80;padding:2rem 1.6rem;overflow-y:auto;
    transform:translateX(-100%);transition:transform .28s var(--ease);
    border-right:1px solid rgba(182,139,85,.35);
  }
  .mobile-nav-panel.open-state{display:none}
  .mobile-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.8rem}
  .mobile-head .m-brand{color:#fff;font-family:"Noto Serif SC",serif;font-weight:700}
  .mobile-close{
    width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;
    border:1px solid rgba(255,255,255,.45);border-radius:8px;color:#fff;cursor:pointer;font-size:1.4rem;
  }
  .mobile-nav-col{display:flex;flex-direction:column;gap:.4rem}
  .mobile-nav-col a{
    padding:.7rem .2rem;border-bottom:1px solid rgba(255,255,255,.1);
    color:rgba(255,255,255,.9);font-size:1rem;font-weight:500;
  }
  .mobile-nav-col a.active{color:var(--brass-light)}
  .mobile-extra{margin-top:1.2rem;padding-top:1.2rem;border-top:1px solid rgba(255,255,255,.1)}
  .mobile-extra a{display:block;color:rgba(255,255,255,.74);padding:.5rem 0;font-size:.925rem;line-height:1.6}
  .mobile-mask{
    position:fixed;inset:0;background:rgba(1,10,8,.6);z-index:70;
    opacity:0;visibility:hidden;transition:all .25s var(--ease);backdrop-filter:blur(2px);
  }
  #mobile-nav{position:absolute;opacity:0;pointer-events:none}
  #mobile-nav:checked ~ .mobile-mask{opacity:1;visibility:visible}
  #mobile-nav:checked ~ .mobile-nav-panel{transform:translateX(0)}

  @media(max-width:1199px){
    .header-inner{flex-wrap:wrap}
    .desktop-nav{display:none}
    .mega-wrap{display:none}
    .menu-open-btn{display:inline-flex}
  }
  @media(min-width:1200px){
    .menu-open-btn{display:none}
    .mobile-mask,.mobile-nav-panel{display:none}
  }
  @media(max-width:560px){
    .header-cta{display:none}
  }

  /* Hero category banner */
  .page-hero{
    position:relative;background:#0B221E;overflow:hidden;color:#fff;
    padding:clamp(4rem,8vw,7rem) 0 clamp(3.2rem,6vw,5.5rem);
  }
  .page-hero::before{
    content:"";position:absolute;inset:0;
    background:url('/assets/images/backpic/back-3.webp') no-repeat center bottom / cover;
    opacity:.3;transform:scale(1.02);
  }
  .page-hero::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(100deg,rgba(11,34,30,.97) 0%,rgba(11,34,30,.84) 40%,rgba(11,34,30,.56) 100%);
  }
  .page-hero .hero-wrap{position:relative;z-index:2;max-width:720px}
  .hero-crumb{
    display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.4rem;
    color:rgba(255,255,255,.66);font-size:.8rem;letter-spacing:.04em;
  }
  .hero-crumb a:hover{color:var(--brass-light)}
  .hero-crumb i{font-size:.7rem;color:var(--brass)}
  .hero-h1{
    font-size:clamp(2.35rem,4.6vw,3.8rem);line-height:1.22;
    color:#fff;letter-spacing:.01em;margin:1.1rem 0 1.4rem;
  }
  .hero-h1 .thin{
    display:block;font-weight:400;color:var(--brass-light);font-size:.55em;letter-spacing:.16em;
    margin-bottom:.5rem;font-family:"PingFang SC","Microsoft YaHei",sans-serif;
  }
  .hero-lead{
    color:rgba(255,255,255,.82);font-size:1.02rem;line-height:2;
    max-width:620px;border-left:3px solid var(--brass);padding-left:1rem;
  }
  .hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:1rem;margin-top:2rem}
  .trust-list{
    position:relative;z-index:3;border-top:1px solid rgba(182,139,85,.4);
    margin-top:3.4rem;padding-top:1.5rem;
    display:flex;flex-wrap:wrap;gap:1.2rem 2.6rem;align-items:center;
    color:rgba(255,255,255,.86);font-size:.9rem;
  }
  .trust-list span::before{
    content:"◆";display:inline-block;color:var(--brass);font-size:.65rem;margin-right:.55rem;vertical-align:1px;
  }
  /* section A */
  .split-media{
    display:grid;grid-template-columns:.95fr 1.05fr;gap:clamp(2rem,5vw,5rem);
    align-items:center;
  }
  .media-frame{
    border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-soft);
    border:1px solid var(--line);background:var(--pine-mist);
  }
  .media-frame img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/5;transition:transform .8s var(--ease)}
  .media-frame:hover img{transform:scale(1.04)}
  .eyebrow-num{
    display:flex;align-items:center;gap:1rem;margin-bottom:1.4rem;
    font-family:"Noto Serif SC",serif;color:var(--brass);font-size:.875rem;letter-spacing:.1em;
  }
  .eyebrow-num::after{content:"";height:1px;width:70px;background:var(--line)}
  .big-title{font-size:clamp(1.65rem,3vw,2.4rem);line-height:1.35;margin-bottom:1.1rem}
  .split-media .lead{
    color:var(--text-sub);font-size:1rem;margin-bottom:1.3rem;
  }
  .check-list{display:flex;flex-direction:column;gap:1.1rem;margin-top:1.8rem}
  .check-item{
    display:flex;align-items:flex-start;gap:.9rem;
    border-bottom:1px solid var(--line);padding-bottom:.9rem;
  }
  .check-item i{
    flex-shrink:0;width:26px;height:26px;display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--brass);border-radius:50%;color:var(--pine);font-size:.78rem;
    margin-top:.2rem;
  }
  .check-item strong{font-weight:600}
  .check-item p{color:var(--text-sub);font-size:.925rem}

  /* service cluster */
  .service-cluster{
    background:var(--pine-deep);color:#fff;position:relative;
    border-block:1px solid var(--brass);
  }
  .service-cluster::before{
    content:"";position:absolute;inset:0;opacity:.13;
    background:url('/assets/images/backpic/back-1.webp') center/cover;
  }
  .service-cluster .container{position:relative}
  .services-rail{
    display:grid;grid-template-columns:repeat(4,1fr);
    gap:2rem;margin-top:1.6rem;
  }
  @media(max-width:990px){.services-rail{grid-template-columns:repeat(2,1fr)}}
  @media(max-width:560px){.services-rail{grid-template-columns:1fr}}
  .service-num-card{
    background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.14);
    border-radius:var(--radius-lg);padding:1.8rem 1.5rem;
    backdrop-filter:blur(4px);transition:all .24s var(--ease);
  }
  .service-num-card:hover{border-color:var(--brass);transform:translateY(-4px);background:rgba(255,255,255,.07)}
  .service-num-card small{
    display:block;color:var(--brass-light);letter-spacing:.1em;font-size:.8rem;margin-bottom:1rem;
  }
  .service-num-card h3{color:#fff;font-size:1.2rem;margin-bottom:.85rem}
  .service-num-card p{color:rgba(255,255,255,.68);font-size:.925rem}
  .service-num-card::after{
    content:"";display:block;width:22px;height:2px;background:var(--brass);
    margin-top:1.20rem;transition:width .3s var(--ease);
  }
  .service-num-card:hover::after{width:46px}

  /* process */
  .process-section{background:var(--cream)}
  .process-wrap{
    display:grid;grid-template-columns:repeat(4,1fr);
    gap:clamp(1rem,2vw,2rem);margin-top:2rem;
  }
  @media(max-width:990px){.process-wrap{grid-template-columns:repeat(2,1fr)}}
  @media(max-width:560px){.process-wrap{grid-template-columns:1fr}}
  .process-step{position:relative;padding-top:4.2rem}
  .process-step::before{
    content:attr(data-step);position:absolute;top:0;left:0;
    font-family:"Noto Serif SC",serif;font-size:2.7rem;font-weight:600;
    color:var(--pine-mist);line-height:1;
  }
  .process-step::after{
    content:"";position:absolute;top:1.7rem;right:-1.1rem;left:3rem;height:1px;
    background:repeating-linear-gradient(to right,var(--brass) 0 12px,transparent 12px 18px);
  }
  @media(max-width:990px){.process-step::after{display:none}}
  @media(min-width:991px){.process-step:last-child::after{display:none}}
  .process-step h4{font-size:1.05rem;margin-bottom:.5rem}
  .process-step p{color:var(--text-sub);font-size:.925rem;max-width:260px}

  /* comparison mini */
  .value-banded{
    background:var(--pine-mist);border-left:4px solid var(--brass);
    padding:clamp(1.6rem,3vw,2.4rem) clamp(1.4rem,3vw,2.4rem);
    border-radius:var(--radius-md);
    display:flex;align-items:center;gap:2rem;flex-wrap:wrap;justify-content:space-between;
  }
  .value-banded h3{font-size:1.3rem;margin-bottom:.2rem}
  .value-banded p{color:var(--text-sub)}

  /* FAQ */
  .faq-stack{max-width:860px;margin-inline:auto}
  .faq-item{
    background:var(--cream);border:1px solid var(--line);border-radius:var(--radius-md);
    margin-bottom:.85rem;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
  }
  .faq-item[open]{border-color:var(--brass);box-shadow:var(--shadow-soft)}
  .faq-item summary{
    list-style:none;cursor:pointer;padding:1.3rem 3rem 1.3rem 1.4rem;
    font-size:1rem;font-weight:600;color:var(--text-main);position:relative;
    transition:color .22s var(--ease);
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary::after{
    content:"+";position:absolute;right:1.4rem;top:50%;transform:translateY(-50%);
    font-size:1.5rem;font-weight:300;color:var(--brass);transition:transform .25s var(--ease);
  }
  .faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg);color:var(--pine)}
  .faq-item[open] summary{color:var(--pine)}
  .faq-item .faq-body{padding:0 1.6rem 1.4rem;color:var(--text-sub);font-size:.925rem}

  /* CTA */
  .cat-cta{
    background:var(--pine-deep);color:#fff;position:relative;
    border-top:1px solid rgba(182,139,85,.3);overflow:hidden;
  }
  .cat-cta__grid{
    display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem);
  }
  @media(max-width:900px){.cat-cta__grid{grid-template-columns:1fr}}
  .cat-cta h2{color:#fff;font-size:clamp(1.7rem,3vw,2.5rem);line-height:1.4}
  .cat-cta .sub-line{color:rgba(255,255,255,.72);margin-top:1rem;font-size:1rem}
  .form-card{
    background:var(--cream);border:1px solid var(--line);border-radius:var(--radius-lg);
    padding:clamp(1.5rem,3vw,2.4rem);box-shadow:0 26px 50px rgba(0,0,0,.18);
  }
  .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
  @media(max-width:600px){.form-grid{grid-template-columns:1fr}}
  .form-field{display:flex;flex-direction:column;gap:.38rem}
  .form-field.col-span{grid-column:1/-1}
  .form-field label{font-size:.88rem;color:var(--text-main)}
  .form-field input,.form-field select,.form-field textarea{
    border:1px solid var(--line);border-radius:6px;background:#fff;padding:.7rem .8rem;
    color:var(--text-main);outline:none;min-height:48px;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
  }
  .form-field textarea{min-height:110px;resize:vertical}
  .form-field input:focus,.form-field select:focus,.form-field textarea:focus{border-color:var(--brass);box-shadow:0 0 0 3px rgba(182,139,85,.18)}
  .privacy-note{font-size:.72rem;color:var(--text-sub);margin-top:.9rem}
  .btn-submit{width:100%;margin-top:1rem}
  /* footer */
  .site-footer{
    background:var(--pine-deep);color:rgba(255,255,255,.72);
    border-top:1px solid var(--brass);
  }
  .footer-top{
    display:grid;grid-template-columns:1.5fr .8fr .8fr 1.1fr;gap:2.5rem;
    padding-block:4rem 3rem;
  }
  @media(max-width:1100px){.footer-top{grid-template-columns:1fr 1fr}}
  @media(max-width:620px){.footer-top{grid-template-columns:1fr}}
  .footer-brand{
    display:flex;align-items:center;gap:.8rem;
    color:#fff;font-family:"Noto Serif SC",serif;font-weight:700;font-size:1.15rem;
  }
  .footer-brand .brand-mark{width:2.4rem;height:2.4rem}
  .footer-about{font-size:.85rem;line-height:1.9;margin-top:1.2rem;max-width:320px;color:rgba(255,255,255,.58)}
  .footer-title{
    font-size:.85rem;text-transform:uppercase;letter-spacing:.18em;color:var(--brass-light);
    margin-bottom:1.2rem;font-weight:600;
  }
  .footer-links{list-style:none;display:flex;flex-direction:column;gap:.58rem;font-size:.92rem}
  .footer-links a{
    display:inline-flex;align-items:center;gap:.3rem;color:rgba(255,255,255,.76);
    transition:all .2s var(--ease);
  }
  .footer-links a:hover{color:var(--brass-light);transform:translateX(-3px)}
  .footer-links li{display:flex;align-items:center;gap:.55rem;color:rgba(255,255,255,.66);font-size:.88rem}
  .footer-links i{color:var(--brass);font-size:.8rem}
  .footer-bottom{
    display:flex;flex-wrap:wrap;gap:1rem 2rem;align-items:center;justify-content:space-between;
    border-top:1px solid rgba(255,255,255,.1);padding-block:1.5rem;
    font-size:.84rem;color:rgba(255,255,255,.5);
  }
  .footer-bottom a{color:rgba(255,255,255,.66)}
  .footer-bottom a:hover{color:var(--brass-light)}