/* roulang page: index */
:root {
  --ink-950: #081F1D;
  --brand-deep: #0E3B34;
  --brand-main: #14574A;
  --brand-mid: #207760;
  --teal-soft: #7BC0AC;
  --gold: #C0A062;
  --gold-soft: #E6D3A7;
  --bg: #F7F5F0;
  --bg-soft: #EDF1E8;
  --surface: #FFFFFF;
  --text-main: #1B2B28;
  --text-secondary: #556863;
  --border: #DDE4DC;
  --on-dark: #F4EFE4;
  --shadow-sm: 0 1px 0 rgba(7, 31, 25, .04), 0 8px 24px rgba(7, 31, 25, .06);
  --shadow-hover: 0 16px 32px rgba(7, 31, 25, .10);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-xxl: 36px;
  --container: 1200px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text-main);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, 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 {
  font-family: inherit;
  font-size: inherit;
}

::selection {
  background: var(--brand-main);
  color: #fff;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 40px);
}

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

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--brand-mid);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.kicker::before {
  content: "";
  width: 34px;
  height: 1px;
  background: var(--gold);
}

.section {
  padding: 96px 0;
}

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

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

.section__head {
  margin-bottom: 52px;
}

.section__head-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
}

.section__title {
  margin: 14px 0 0;
  font-size: clamp(28px, 3.4vw, 38px);
  line-height: 1.28;
  letter-spacing: .01em;
  color: var(--text-main);
}

.section__desc {
  max-width: 560px;
  margin: 12px 0 0;
  color: var(--text-secondary);
  font-size: 16px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--brand-main);
  font-weight: 600;
  font-size: 15px;
  border-bottom: 1px solid rgba(20, 87, 74, .28);
  padding-bottom: 2px;
  transition: color .2s ease, border-color .2s ease, gap .2s ease;
}

.text-link:hover {
  color: var(--brand-deep);
  border-color: var(--brand-deep);
  gap: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 28px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
  white-space: nowrap;
}

.btn--primary {
  background: linear-gradient(135deg, var(--brand-main), var(--brand-deep));
  color: #fff;
  box-shadow: 0 8px 22px rgba(14, 59, 52, .24);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(14, 59, 52, .28);
}

.btn--ghost {
  background: transparent;
  border-color: rgba(244, 239, 228, .6);
  color: var(--on-dark);
}

.btn--ghost:hover {
  border-color: var(--on-dark);
  background: rgba(255, 255, 255, .08);
  transform: translateY(-2px);
}

.btn--outline {
  background: var(--surface);
  border-color: rgba(20, 87, 74, .36);
  color: var(--brand-main);
}

.btn--outline:hover {
  border-color: var(--brand-main);
  background: rgba(20, 87, 74, .04);
  transform: translateY(-2px);
}

.btn--gold {
  background: linear-gradient(135deg, var(--gold-soft), var(--gold));
  color: var(--ink-950);
  box-shadow: 0 10px 24px rgba(192, 160, 98, .20);
}

.btn--gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 30px rgba(192, 160, 98, .28);
}

@media (max-width: 640px) {
  .section {
    padding: 64px 0;
  }

  .btn {
    width: 100%;
  }

  .btn--ghost,
  .btn--outline {
    width: auto;
  }
}

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(247, 245, 240, .92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  transition: background .25s ease;
}

.site-header.is-open {
  background: var(--bg);
}

.header__inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
  flex-shrink: 0;
}

.brand__mark {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--brand-main);
}

.brand__text {
  font-size: 20px;
  font-weight: 500;
  letter-spacing: .08em;
  color: var(--text-main);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(22px, 2.4vw, 38px);
}

.nav-link {
  position: relative;
  padding: 10px 2px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color .2s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--brand-main);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .22s ease;
}

.nav-link:hover {
  color: var(--brand-deep);
}

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

.nav-link.is-active {
  color: var(--brand-main);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
  cursor: pointer;
  position: relative;
}

.nav-toggle span {
  position: absolute;
  left: 10px;
  right: 10px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: transform .22s ease, opacity .22s ease, top .22s ease;
}

.nav-toggle span:nth-child(1) {
  top: 15px;
}

.nav-toggle span:nth-child(2) {
  top: 21px;
}

.nav-toggle span:nth-child(3) {
  top: 27px;
}

@media (max-width: 992px) {
  .nav-toggle {
    display: block;
  }

  .main-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    margin: 0;
    padding: 8px calc(max(24px, 50vw - 600px)) 32px;
    background: var(--bg);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    border-bottom: 1px solid rgba(13, 60, 51, .10);
    box-shadow: 0 24px 48px rgba(7, 31, 25, .08);
    transform: translateY(-10px) translateX(0);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: transform .24s ease, opacity .24s ease, visibility .24s ease;
  }

  .is-open .main-nav {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .nav-link {
    width: 100%;
    padding: 15px 0;
    border-bottom: 1px solid var(--border);
    font-size: 17px;
  }

  .nav-link::after {
    display: none;
  }

  .is-open .nav-toggle span:nth-child(1) {
    top: 21px;
    transform: rotate(45deg);
  }

  .is-open .nav-toggle span:nth-child(2) {
    opacity: 0;
  }

  .is-open .nav-toggle span:nth-child(3) {
    top: 21px;
    transform: rotate(-45deg);
  }
}

/* Hero */
.hero {
  position: relative;
  background: linear-gradient(112deg, rgba(8, 31, 29, .94) 0%, rgba(14, 59, 52, .84) 52%, rgba(32, 119, 96, .64) 100%), url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  color: var(--on-dark);
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  right: -120px;
  bottom: -160px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  border: 1px solid rgba(230, 211, 167, .16);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
  padding: 116px 0 104px;
}

.hero h1 {
  max-width: 900px;
  margin: 18px 0 0;
  font-size: clamp(36px, 5.2vw, 60px);
  line-height: 1.16;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--on-dark);
}

.hero__lead {
  max-width: 740px;
  margin: 26px 0 0;
  font-size: clamp(16px, 1.4vw, 19px);
  line-height: 1.85;
  color: rgba(244, 239, 228, .88);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 38px;
}

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
  margin-top: 60px;
  padding-top: 28px;
  border-top: 1px solid rgba(244, 239, 228, .16);
}

.stat-mini {
  display: flex;
  align-items: baseline;
  gap: 10px;
  color: rgba(244, 239, 228, .88);
  font-size: 14px;
}

.stat-mini strong {
  font-size: 24px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--gold-soft);
}

@media (max-width: 640px) {
  .hero__inner {
    padding: 68px 0 72px;
  }

  .hero h1 {
    font-size: 32px;
    line-height: 1.3;
  }

  .hero__lead {
    font-size: 16px;
  }

  .hero__stats {
    margin-top: 40px;
  }
}

/* Brand intro */
.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  gap: 72px;
  align-items: start;
}

.intro-grid h2 {
  margin: 16px 0 0;
  font-size: clamp(30px, 3.2vw, 42px);
  line-height: 1.3;
  letter-spacing: .01em;
}

.intro-note {
  color: var(--text-secondary);
  font-size: 17px;
  line-height: 1.9;
  margin: 0;
}

.intro-note + .intro-note {
  margin-top: 20px;
}

.principles {
  margin-top: 54px;
  border-top: 1px solid var(--border);
}

.principle {
  padding: 26px 0 8px;
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 10px;
}

.principle + .principle {
  border-top: 1px solid var(--border);
  margin-top: 20px;
}

.principle__index {
  color: var(--gold);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .04em;
}

.principle h3 {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 700;
  color: var(--brand-deep);
}

.principle p {
  margin: 0;
  max-width: 520px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.75;
}

@media (max-width: 992px) {
  .intro-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

/* Column catalog */
.cat-list {
  display: grid;
  gap: 28px;
}

.cat-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  min-height: 280px;
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  box-shadow: var(--shadow-sm);
  transition: box-shadow .25s ease, transform .25s ease, border-color .25s ease;
}

.cat-item:nth-child(even) .cat-item__media {
  order: 2;
}

.cat-item:hover {
  box-shadow: var(--shadow-hover);
  border-color: rgba(20, 87, 74, .20);
  transform: translateY(-2px);
}

.cat-item__media {
  min-height: 240px;
  overflow: hidden;
  position: relative;
}

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

.cat-item:hover .cat-item__media img {
  transform: scale(1.03);
}

.cat-item__body {
  padding: 36px 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
}

.cat-item__num {
  color: var(--gold);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  margin-bottom: 10px;
}

.cat-item h3 {
  margin: 0;
  font-size: 22px;
  line-height: 1.4;
}

.cat-item h3 a {
  color: var(--text-main);
  transition: color .2s ease;
}

.cat-item h3 a:hover {
  color: var(--brand-main);
}

.cat-item p {
  margin: 14px 0 22px;
  color: var(--text-secondary);
  font-size: 15px;
  max-width: 620px;
}

@media (max-width: 820px) {
  .cat-item,
  .cat-item:nth-child(even) .cat-item__media {
    grid-template-columns: 1fr;
  }

  .cat-item:nth-child(even) .cat-item__media {
    order: -1;
  }

  .cat-item__media {
    min-height: 220px;
  }

  .cat-item__body {
    padding: 28px 26px 32px;
  }
}

/* latest */
.latest__grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 40px;
  align-items: stretch;
}

.latest__feature {
  grid-column: span 5;
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  min-height: 420px;
  display: flex;
  align-items: flex-end;
  background: var(--brand-deep);
  box-shadow: var(--shadow-sm);
}

.latest__feature img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .8;
}

.latest__feature::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(14, 59, 52, .14) 0%, rgba(8, 31, 29, .88) 100%);
}

.latest__feature-content {
  position: relative;
  z-index: 2;
  color: var(--on-dark);
  padding: 42px;
}

.card-tag {
  display: inline-block;
  background: rgba(230, 211, 167, .18);
  border: 1px solid rgba(230, 211, 167, .5);
  color: var(--gold-soft);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  padding: 4px 12px;
  letter-spacing: .04em;
}

.latest__feature-content h3 {
  margin: 18px 0 10px;
  font-size: 24px;
  line-height: 1.45;
}

.latest__feature-content p {
  margin: 0 0 24px;
  color: rgba(244, 239, 228, .84);
  font-size: 15px;
}

.latest__feature a {
  position: relative;
  z-index: 3;
}

.latest__list {
  grid-column: span 7;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 12px 36px 18px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.news-row {
  display: block;
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
  transition: padding-left .2s ease;
}

.news-row:first-child {
  padding-top: 12px;
}

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

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

.news-row__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  font-size: 13px;
  color: var(--text-secondary);
}

.news-row__meta .badge {
  display: inline-block;
  color: var(--brand-main);
  background: var(--bg-soft);
  border-radius: 999px;
  padding: 2px 12px;
  font-weight: 600;
}

.news-row h3 {
  margin: 8px 0 6px;
  font-size: 19px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color .2s ease;
}

.news-row h3 a {
  color: var(--text-main);
}

.news-row h3 a:hover {
  color: var(--brand-main);
}

.news-row p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.empty-tip {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 180px;
  border: 1px dashed var(--border);
  border-radius: 18px;
  color: var(--text-secondary);
  background: var(--bg-soft);
  font-size: 15px;
  margin-top: 18px;
  padding: 24px;
  text-align: center;
}

@media (max-width: 992px) {
  .latest__feature,
  .latest__list {
    grid-column: span 12;
  }

  .latest__feature {
    min-height: 360px;
  }
}

@media (max-width: 640px) {
  .latest__list {
    padding: 12px 24px 18px;
  }

  .latest__feature-content {
    padding: 28px 24px;
  }

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

/* topic picks */
.pick-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.pick-card {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  min-height: 420px;
  display: flex;
  align-items: flex-end;
  isolation: isolate;
}

.pick-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
  transition: transform .4s ease;
}

.pick-card::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(8, 31, 29, 0) 46%, rgba(8, 31, 29, .92) 100%);
}

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

.pick-card__body {
  width: 100%;
  padding: 40px 42px;
  color: var(--on-dark);
}

.pick-card__body h3 {
  margin: 14px 0 10px;
  font-size: 26px;
  line-height: 1.4;
  font-weight: 700;
}

.pick-card__body p {
  margin: 0 0 18px;
  font-size: 15px;
  color: rgba(244, 239, 228, .88);
  max-width: 520px;
}

@media (max-width: 880px) {
  .pick-grid {
    grid-template-columns: 1fr;
  }

  .pick-card {
    min-height: 360px;
  }
}

@media (max-width: 640px) {
  .pick-card__body {
    padding: 28px 24px;
  }

  .pick-card__body h3 {
    font-size: 21px;
  }
}

/* Trust band */
.trust-band {
  background: linear-gradient(120deg, rgba(8, 31, 29, .94), rgba(14, 59, 52, .82) 46%, rgba(20, 87, 74, .72)), url('/assets/images/backpic/back-3.png') center / cover no-repeat;
  border-radius: var(--radius-xxl);
  padding: 72px clamp(28px, 5vw, 80px);
  color: var(--on-dark);
}

.trust-band__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 56px;
  align-items: center;
}

.trust-band h2 {
  margin: 16px 0 14px;
  font-size: clamp(28px, 3.2vw, 38px);
  line-height: 1.3;
  color: var(--on-dark);
}

.trust-band p {
  margin: 0;
  color: rgba(244, 239, 228, .8);
  max-width: 520px;
}

.trust-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.stat-block {
  border-left: 1px solid rgba(230, 211, 167, .36);
  padding: 12px 0 6px 22px;
}

.stat-block b {
  display: block;
  font-size: 38px;
  font-weight: 700;
  color: var(--gold-soft);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}

.stat-block span {
  color: rgba(244, 239, 228, .72);
  font-size: 14px;
  letter-spacing: .02em;
}

@media (max-width: 992px) {
  .trust-band__grid {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .trust-band {
    padding: 52px 24px;
  }
}

@media (max-width: 520px) {
  .trust-stats {
    grid-template-columns: 1fr;
  }
}

/* FAQ */
.faq-list {
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 8px 12px;
  margin-bottom: 16px;
  box-shadow: 0 1px 0 rgba(7, 31, 25, .02);
  transition: border-color .2s ease, box-shadow .2s ease;
}

.faq-item[open] {
  border-color: rgba(192, 160, 98, .62);
  box-shadow: 0 12px 28px rgba(7, 31, 25, .06);
}

.faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 20px;
  cursor: pointer;
  font-weight: 600;
  font-size: 17px;
  line-height: 1.6;
  color: var(--text-main);
  transition: color .2s ease;
}

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

.faq-item summary:hover {
  color: var(--brand-main);
}

.faq-item summary::after {
  content: "+";
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--bg-soft);
  color: var(--brand-main);
  font-size: 22px;
  font-weight: 400;
  transition: transform .22s ease, background .22s ease, color .22s ease;
}

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

.faq-item[open] summary::after {
  transform: rotate(45deg);
  background: var(--brand-main);
  color: #fff;
}

.faq-content {
  padding: 0 20px 22px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.85;
}

.faq-content p {
  margin: 0;
}

/* CTA */
.cta__panel {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--brand-deep), var(--brand-main) 62%, #1E6D58);
  border-radius: var(--radius-xxl);
  padding: 72px clamp(28px, 6vw, 92px);
  color: var(--on-dark);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.04fr);
  gap: 56px;
  align-items: center;
}

.cta__panel::before {
  content: "";
  position: absolute;
  width: 300px;
  height: 300px;
  right: -120px;
  top: -120px;
  border-radius: 50%;
  border: 1px solid rgba(230, 211, 167, .18);
}

.cta__panel::after {
  content: "";
  position: absolute;
  width: 240px;
  height: 240px;
  right: 40px;
  bottom: -180px;
  border-radius: 50%;
  border: 1px solid rgba(230, 211, 167, .12);
}

.cta__copy {
  position: relative;
  z-index: 1;
}

.cta__copy h2 {
  margin: 16px 0 14px;
  font-size: clamp(28px, 3.2vw, 40px);
  line-height: 1.3;
  color: var(--on-dark);
}

.cta__copy p {
  margin: 0;
  color: rgba(244, 239, 228, .8);
  font-size: 16px;
  max-width: 480px;
}

.cta__form-wrap {
  position: relative;
  z-index: 1;
}

.cta-form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.cta-form .form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.cta-form label {
  font-size: 14px;
  font-weight: 600;
  color: rgba(244, 239, 228, .84);
}

.cta-form input {
  width: 100%;
  height: 48px;
  border: 1px solid rgba(244, 239, 228, .24);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, .1);
  color: #fff;
  padding: 0 16px;
  outline: none;
  transition: border-color .2s ease, background .2s ease, box-shadow .2s ease;
}

.cta-form input:focus {
  border-color: var(--gold);
  background: rgba(255, 255, 255, .16);
  box-shadow: 0 0 0 3px rgba(192, 160, 98, .24);
}

.cta-form input::placeholder {
  color: rgba(244, 239, 228, .5);
}

.cta-form .btn {
  grid-column: 1 / -1;
  justify-self: start;
  margin-top: 6px;
}

.form-note {
  margin: 18px 0 0;
  font-size: 13px;
  color: rgba(244, 239, 228, .62);
  line-height: 1.7;
}

.form-success {
  display: none;
  margin-top: 18px;
  padding: 14px 18px;
  background: rgba(123, 192, 172, .12);
  border: 1px solid rgba(123, 192, 172, .36);
  border-radius: 14px;
  color: var(--gold-soft);
  font-size: 15px;
}

.form-success.is-visible {
  display: block;
}

@media (max-width: 992px) {
  .cta__panel {
    grid-template-columns: 1fr;
    gap: 34px;
    padding: 48px 24px;
  }

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

  .cta-form .btn {
    width: 100%;
    justify-self: stretch;
  }
}

/* Footer */
.site-footer {
  background: var(--ink-950);
  color: rgba(244, 239, 228, .74);
  margin-top: 96px;
}

.footer__content {
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, .9fr) minmax(0, 1fr);
  gap: 48px;
}

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

.footer-brand .brand__mark {
  color: var(--gold-soft);
}

.footer-brand .brand__text {
  color: var(--on-dark);
}

.footer-desc {
  max-width: 360px;
  margin: 18px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 239, 228, .6);
}

.footer-title {
  color: var(--on-dark);
  font-size: 15px;
  font-weight: 600;
  margin: 8px 0 20px;
  letter-spacing: .05em;
}

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

.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(244, 239, 228, .7);
  font-size: 15px;
  transition: color .2s ease, padding-left .2s ease;
}

.footer-links a::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--gold);
  opacity: .8;
}

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

.footer-contact {
  color: rgba(244, 239, 228, .68);
  font-size: 15px;
  line-height: 2;
}

.footer-contact strong {
  color: var(--on-dark);
  font-weight: 600;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  border-top: 1px solid rgba(244, 239, 228, .1);
  padding: 22px 0 10px;
  font-size: 13px;
  color: rgba(244, 239, 228, .46);
}

.footer-bottom a {
  color: rgba(244, 239, 228, .68);
}

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

@media (max-width: 860px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

/* roulang page: category1 */
:root{
  --color-ink-950:#081F1D;
  --color-brand-deep:#0E3B34;
  --color-brand-main:#14574A;
  --color-brand-mid:#207760;
  --color-teal-soft:#7BC0AC;
  --color-gold:#C0A062;
  --color-gold-soft:#E6D3A7;
  --color-bg:#F7F5F0;
  --color-bg-soft:#EDF1E8;
  --color-surface:#FFFFFF;
  --color-text-main:#1B2B28;
  --color-text-secondary:#556863;
  --color-border:#DDE4DC;
  --color-on-dark:#F4EFE4;
  --radius-sm:6px;
  --radius-md:12px;
  --radius-card:16px;
  --radius-lg:24px;
  --radius-xl:32px;
  --shadow-card:0 1px 0 rgba(7,31,25,.04),0 8px 24px rgba(7,31,25,.06);
  --shadow-hover:0 16px 32px rgba(7,31,25,.1);
  --transition:all .2s ease;
}
html,body,div,span,applet,object,iframe,h1,h2,h3,h4,h5,h6,p,blockquote,pre,a,abbr,acronym,address,big,cite,code,del,dfn,em,img,ins,kbd,q,s,samp,small,strike,strong,sub,sup,tt,var,b,u,i,center,dl,dt,dd,ol,ul,li,fieldset,form,label,legend,table,caption,tbody,tfoot,thead,tr,th,td,article,aside,canvas,details,embed,figure,figcaption,footer,header,hgroup,menu,nav,output,ruby,section,summary,time,mark,audio,video{margin:0;padding:0;border:0;font-size:100%;font:inherit;vertical-align:baseline}
*,*::before,*::after{box-sizing:border-box}
article,aside,details,figcaption,figure,footer,header,hgroup,menu,nav,section{display:block}
ol,ul{list-style:none}
blockquote,q{quotes:none}
blockquote:before,blockquote:after,q:before,q:after{content:"";content:none}
table{border-collapse:collapse;border-spacing:0}
html{scroll-behavior:smooth}
body{
  background:var(--color-bg);
  color:var(--color-text-main);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;background:none;border:none;cursor:pointer}
input,textarea{font-family:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-title{
  font-size:clamp(28px,4vw,36px);
  font-weight:800;
  line-height:1.3;
  letter-spacing:-0.02em;
  color:var(--color-brand-deep);
}
.section-title.light{color:var(--color-on-dark)}
.section-lead{
  font-size:17px;
  line-height:1.9;
  color:var(--color-text-secondary);
  max-width:860px;
  margin-top:16px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--color-brand-mid);
}
.eyebrow::before{
  content:"";
  width:28px;height:1px;
  background:var(--color-gold);
}
.eyebrow--light{color:var(--color-gold-soft)}
.eyebrow--light::before{background:var(--color-gold-soft)}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  font-weight:700;
  font-size:15px;
  line-height:1;
  padding:16px 32px;
  border-radius:999px;
  text-decoration:none;
  transition:var(--transition);
  border:1px solid transparent;
}
.btn svg{width:18px;height:18px}
.btn-primary{
  background:linear-gradient(135deg,var(--color-brand-main),var(--color-brand-deep));
  color:#fff;
  box-shadow:0 10px 24px rgba(14,59,52,.2);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 16px 34px rgba(14,59,52,.28);
}
.btn-primary:active{transform:scale(.98)}
.btn-gold{
  background:linear-gradient(135deg,var(--color-gold-soft),var(--color-gold));
  color:#1B2B28;
  box-shadow:0 10px 26px rgba(121,89,39,.18);
}
.btn-gold:hover{
  transform:translateY(-2px);
  box-shadow:0 16px 36px rgba(121,89,39,.26);
}
.btn-gold:active{transform:scale(.98)}
.btn-outline-light{
  border-color:rgba(255,255,255,.45);
  color:var(--color-on-dark);
  background:rgba(255,255,255,.06);
  backdrop-filter:blur(4px);
}
.btn-outline-light:hover{
  background:rgba(255,255,255,.16);
  transform:translateY(-2px);
}
.btn-outline-light:active{transform:scale(.98)}
.btn-outline{
  border-color:var(--color-brand-main);
  color:var(--color-brand-main);
  background:#fff;
}
.btn-outline:hover{
  background:var(--color-bg-soft);
  transform:translateY(-2px);
}
.btn-outline:active{transform:scale(.98)}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-weight:600;
  color:var(--color-brand-main);
  text-decoration:underline;
  text-decoration-color:rgba(32,119,96,.35);
  text-underline-offset:4px;
  transition:var(--transition);
}
.text-link:hover{color:var(--color-brand-deep);text-decoration-color:var(--color-gold)}
:focus-visible{outline:2px solid var(--color-gold);outline-offset:2px}

/* Header */
.site-header{
  width:100%;
  height:72px;
  background:rgba(247,245,240,.9);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--color-border);
  position:fixed;
  top:0;left:0;z-index:100;
}
.header__inner{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
}
.brand{
  display:inline-flex;
  align-items:baseline;
  gap:2px;
  flex-shrink:0;
}
.brand__mark{
  font-weight:800;
  font-size:23px;
  letter-spacing:-0.05em;
  color:var(--color-brand-deep);
}
.brand__text{
  font-size:19px;
  font-weight:500;
  letter-spacing:.04em;
  color:var(--color-brand-main);
}
.main-nav{
  display:flex;
  align-items:center;
  gap:8px;
}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--color-text-secondary);
  padding:10px 4px;
  line-height:1.2;
  transition:var(--transition);
  white-space:nowrap;
}
.nav-link:hover{color:var(--color-brand-main)}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:100%;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--color-brand-main);
  transition:right .25s ease;
}
.nav-link:hover::after{right:0}
.nav-link.is-active{
  color:var(--color-brand-deep);
  font-weight:700;
}
.nav-link.is-active::after{
  right:0;
  background:var(--color-gold);
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  background:transparent;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  transition:var(--transition);
}
.nav-toggle span{
  display:block;
  width:22px;height:2px;
  background:var(--color-brand-deep);
  border-radius:3px;
  transition:var(--transition);
}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-toggle:hover{background:var(--color-bg-soft)}

/* Hero */
.page-hero{
  padding:168px 0 88px;
  background-size:cover;
  background-position:center;
  position:relative;
  overflow:hidden;
  isolation:isolate;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(100deg,rgba(8,31,29,.94) 0%,rgba(14,59,52,.84) 45%,rgba(14,59,52,.55) 100%);
  z-index:-1;
}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:rgba(244,239,228,.72);
  margin-bottom:36px;
}
.breadcrumb a{color:rgba(244,239,228,.84);transition:var(--transition)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.5}
.hero-content{max-width:900px}
.hero-content .section-title{
  color:var(--color-on-dark);
  font-size:clamp(40px,6vw,60px);
  line-height:1.18;
  margin-top:18px;
  letter-spacing:-.03em;
}
.hero-desc{
  margin-top:24px;
  font-size:18px;
  line-height:1.8;
  color:rgba(244,239,228,.88);
  max-width:760px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:40px;
}
.hero-meta{
  display:grid;
  grid-template-columns:repeat(3,minmax(110px,1fr));
  max-width:660px;
  margin-top:60px;
  border-top:1px solid rgba(244,239,228,.24);
}
.hero-meta div{
  padding:22px 24px 0 0;
  margin-top:0;
}
.hero-meta strong{
  display:block;
  font-size:30px;
  font-weight:800;
  color:var(--color-gold-soft);
  line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.hero-meta span{
  display:block;
  font-size:13px;
  color:rgba(244,239,228,.78);
  margin-top:6px;
}

/* Intro block */
.intro-section{
  padding:96px 0 0;
}
.intro-grid{
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);
  gap:80px;
  align-items:center;
}
.intro-copy .eyebrow{margin-bottom:20px}
.intro-copy h2{
  font-size:clamp(28px,4vw,38px);
  font-weight:800;
  color:var(--color-brand-deep);
  line-height:1.35;
  letter-spacing:-.02em;
}
.intro-copy .intro-text{
  margin-top:24px;
  font-size:17px;
  line-height:1.9;
  color:var(--color-text-secondary);
}
.intro-points{
  margin-top:36px;
  border-top:1px solid var(--color-border);
}
.intro-points li{
  display:flex;
  align-items:flex-start;
  gap:16px;
  padding:17px 0;
  border-bottom:1px solid var(--color-border);
  font-size:15px;
  line-height:1.7;
  color:var(--color-text-main);
}
.intro-points li b{
  color:var(--color-brand-main);
  font-weight:700;
  white-space:nowrap;
}
.intro-figure{
  position:relative;
  border-radius:var(--radius-xl);
  overflow:hidden;
  background:var(--color-bg-soft);
  aspect-ratio:4/3;
  box-shadow:var(--shadow-card);
}
.intro-figure img,.intro-figure picture,.intro-figure .cover{
  width:100%;height:100%;object-fit:cover;
}
.intro-figure::after{
  content:"";
  position:absolute;
  inset:0;
  border:1px solid rgba(255,255,255,.2);
  border-radius:var(--radius-xl);
  pointer-events:none;
}

/* Campus data split */
.campus-section{
  padding:96px 0;
}
.split-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) 340px;
  gap:64px;
  align-items:start;
}
.section-heading .section-title{margin-top:8px}
.section-heading .section-desc{
  margin-top:14px;
  color:var(--color-text-secondary);
  font-size:16px;
  line-height:1.75;
  max-width:720px;
}
.archive-block{
  margin-top:52px;
  scroll-margin-top:80px;
}
.archive-head{
  display:flex;
  align-items:flex-start;
  gap:18px;
  padding-bottom:14px;
  border-bottom:2px solid var(--color-brand-main);
}
.archive-head .no{
  font-size:13px;
  font-weight:800;
  color:var(--color-gold);
  letter-spacing:.08em;
  padding-top:8px;
}
.archive-head h3{
  font-size:22px;
  font-weight:800;
  color:var(--color-brand-deep);
  line-height:1.35;
}
.archive-head p{
  font-size:14px;
  color:var(--color-text-secondary);
  margin-top:5px;
}
.entry-row{
  padding:28px 4px;
  border-bottom:1px solid var(--color-border);
  transition:background-color .2s ease;
}
.entry-row:hover{background:rgba(237,241,232,.55)}
.entry-top{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
}
.entry-title{
  display:flex;
  align-items:baseline;
  gap:10px;
  flex-wrap:wrap;
  font-size:18px;
  font-weight:700;
  color:var(--color-text-main);
}
.entry-title small{
  font-size:13px;
  font-weight:400;
  color:var(--color-text-secondary);
}
.entry-tags{display:inline-flex;flex-wrap:wrap;gap:6px}
.tag{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  line-height:1;
  padding:6px 10px;
  border-radius:999px;
  color:var(--color-brand-main);
  background:var(--color-bg-soft);
  border:1px solid var(--color-border);
  opacity:.9;
}
.entry-row p{
  margin-top:12px;
  font-size:14px;
  line-height:1.8;
  color:var(--color-text-secondary);
}
.entry-row p strong{color:var(--color-text-main)}

/* Sidebar */
.sidebar-card{
  position:sticky;
  top:96px;
  background:var(--color-surface);
  border:1px solid var(--color-border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.sidebar-media{
  position:relative;
  height:180px;
  background:var(--color-bg-soft);
}
.sidebar-media img{
  width:100%;height:100%;object-fit:cover;
}
.sidebar-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,transparent 60%,rgba(8,31,29,.4));
}
.sidebar-content{padding:28px}
.sidebar-kicker{
  font-size:12px;
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--color-gold);
}
.sidebar-content h3{
  font-size:22px;
  line-height:1.4;
  color:var(--color-brand-deep);
  font-weight:800;
  margin-top:8px;
}
.sidebar-content .side-desc{
  margin-top:14px;
  font-size:14px;
  line-height:1.75;
  color:var(--color-text-secondary);
}
.side-list{
  margin-top:20px;
  border-top:1px solid var(--color-border);
}
.side-list li{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:12px 0;
  border-bottom:1px solid var(--color-border);
  font-size:14px;
  line-height:1.65;
  color:var(--color-text-secondary);
}
.side-list li i{
  font-style:normal;
  font-weight:800;
  font-size:12px;
  letter-spacing:.06em;
  color:var(--color-brand-mid);
  background:var(--color-bg-soft);
  border-radius:8px;
  width:28px;
  height:24px;
  flex-shrink:0;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-top:2px;
}
.sidebar-actions{
  margin-top:20px;
  display:grid;
  gap:12px;
}
.sidebar-note{
  margin-top:15px;
  font-size:12px;
  line-height:1.7;
  color:var(--color-text-secondary);
  border-left:2px solid var(--color-gold-soft);
  padding-left:12px;
}

/* Fit section */
.fit-section{
  background:var(--color-bg-soft);
}
.fit-title{
  font-size:clamp(28px,4vw,36px);
  line-height:1.3;
  font-weight:800;
  color:var(--color-brand-deep);
  letter-spacing:-.02em;
}
.fit-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:32px;
}
.fit-head .fit-note{
  max-width:700px;
  margin-top:16px;
}
.fit-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:40px;
  margin-top:54px;
}
.fit-item{
  padding:34px 34px 40px;
  background:var(--color-surface);
  border-radius:var(--radius-lg);
  border:1px solid var(--color-border);
  box-shadow:var(--shadow-card);
  transition:var(--transition);
}
.fit-item:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(32,119,96,.35);
}
.fit-no{
  font-size:12px;
  font-weight:800;
  color:var(--color-gold);
  letter-spacing:.16em;
}
.fit-item h3{
  font-size:20px;
  font-weight:700;
  color:var(--color-text-main);
  line-height:1.5;
  margin-top:14px;
}
.fit-item p{
  margin-top:16px;
  font-size:14px;
  line-height:1.8;
  color:var(--color-text-secondary);
}
.fit-item ol{
  margin-top:18px;
  padding-left:0;
}
.fit-item li{
  position:relative;
  padding-left:18px;
  margin-top:8px;
  font-size:14px;
  color:var(--color-text-secondary);
  line-height:1.7;
}
.fit-item li::before{
  content:"";
  position:absolute;
  left:0;
  top:.75em;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--color-teal-soft);
}

/* Process thin section */
.process-section{padding:96px 0}
.process-wrap{
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:72px;
  align-items:center;
}
.process-list{
  margin-top:38px;
  border-top:1px solid var(--color-border);
}
.process-list li{
  position:relative;
  display:flex;
  gap:24px;
  padding:28px 0;
  border-bottom:1px solid var(--color-border);
}
.process-list b{
  flex-shrink:0;
  width:34px;
  font-size:15px;
  color:var(--color-gold);
  font-weight:800;
  font-variant-numeric:tabular-nums;
  line-height:1.8;
}
.process-list h4{
  font-size:18px;
  color:var(--color-brand-deep);
  font-weight:700;
}
.process-list p{
  margin-top:6px;
  font-size:14px;
  line-height:1.75;
  color:var(--color-text-secondary);
}
.process-figure{
  position:relative;
  border-radius:var(--radius-xl);
  overflow:hidden;
  background:var(--color-ink-950);
  min-height:480px;
  display:flex;
  align-items:flex-end;
}
.process-figure img{
  position:absolute;
  inset:0;
  width:100%;height:100%;
  object-fit:cover;
  opacity:.72;
}
.process-figure .figure-text{
  position:relative;
  z-index:1;
  padding:34px;
  color:var(--color-on-dark);
}
.process-figure .figure-text strong{
  display:block;
  font-size:20px;
  font-weight:800;
  margin-bottom:8px;
}
.process-figure .figure-text span{
  font-size:14px;
  line-height:1.7;
  color:rgba(244,239,228,.85);
}

/* FAQ */
.faq-section{
  background:var(--color-surface);
  border-top:1px solid var(--color-border);
}
.faq-grid{
  display:grid;
  grid-template-columns:.4fr .6fr;
  gap:64px;
  align-items:start;
}
.faq-side{
  position:sticky;
  top:120px;
}
.faq-side .section-title{margin-top:10px}
.faq-side p{
  margin-top:18px;
  font-size:15px;
  color:var(--color-text-secondary);
  line-height:1.8;
}
.faq-wrap{
  max-width:900px;
}
.faq-item{
  border-bottom:1px solid var(--color-border);
  background:transparent;
  transition:var(--transition);
}
.faq-item[open]{background:rgba(237,241,232,.35)}
.faq-item summary{
  list-style:none;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:24px 6px;
  cursor:pointer;
  font-size:17px;
  font-weight:600;
  color:var(--color-text-main);
  line-height:1.6;
  transition:var(--transition);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--color-brand-main)}
.faq-item[open] summary{color:var(--color-brand-deep)}
.faq-icon{
  position:relative;
  width:22px;
  height:22px;
  flex-shrink:0;
  border-radius:50%;
  border:1.5px solid var(--color-gold);
  transition:transform .2s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  top:50%;left:50%;
  width:9px;height:1.5px;
  background:var(--color-gold);
  transform:translate(-50%,-50%);
}
.faq-icon::after{transform:translate(-50%,-50%) rotate(90deg)}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(0deg)}
.faq-answer{
  padding:4px 32px 28px 6px;
}
.faq-answer p{
  font-size:15px;
  line-height:1.85;
  color:var(--color-text-secondary);
  max-width:800px;
}

/* Final CTA */
.cta-section{
  padding:96px 0;
}
.cta-block{
  border-radius:var(--radius-xl);
  position:relative;
  overflow:hidden;
  background-size:cover;
  background-position:center;
  isolation:isolate;
  padding:64px 64px 56px;
}
.cta-block::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(110deg,rgba(8,31,29,.95),rgba(14,59,52,.82) 55%,rgba(14,59,52,.62));
  z-index:-1;
}
.cta-inner{max-width:860px}
.cta-inner h2{
  color:var(--color-on-dark);
  font-size:clamp(28px,4vw,38px);
  line-height:1.35;
  font-weight:800;
  letter-spacing:-.02em;
}
.cta-inner p{
  color:rgba(244,239,228,.84);
  font-size:16px;
  line-height:1.8;
  margin-top:16px;
  max-width:720px;
}
.cta-form{
  display:grid;
  grid-template-columns:1fr 1fr auto;
  gap:14px;
  margin-top:32px;
  align-items:center;
}
.cta-form input{
  width:100%;
  height:52px;
  padding:0 18px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.2);
  border-radius:var(--radius-md);
  color:#fff;
  font-size:15px;
  outline:none;
  transition:var(--transition);
}
.cta-form input::placeholder{color:rgba(244,239,228,.7)}
.cta-form input:focus{
  border-color:var(--color-gold-soft);
  background:rgba(255,255,255,.14);
  box-shadow:0 0 0 3px rgba(192,160,98,.2);
}
.cta-form .btn-gold{height:52px;padding:0 28px}
.cta-footnote{
  margin-top:16px;
  font-size:12px;
  color:rgba(244,239,228,.65);
}

/* Footer */
.site-footer{
  background:var(--color-ink-950);
  color:rgba(244,239,228,.72);
}
.footer__content{
  padding:64px 24px 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.3fr .9fr 1fr;
  gap:56px;
  padding-bottom:48px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand .brand__mark{color:var(--color-on-dark);font-size:24px}
.footer-brand .brand__text{color:var(--color-gold-soft);font-size:19px}
.footer-desc{
  margin-top:18px;
  font-size:14px;
  line-height:1.85;
  color:rgba(244,239,228,.58);
  max-width:420px;
}
.footer-title{
  color:var(--color-on-dark);
  font-size:16px;
  font-weight:700;
  margin-bottom:18px;
  letter-spacing:.02em;
}
.footer-links li{
  margin-bottom:12px;
}
.footer-links a{
  color:rgba(244,239,228,.68);
  font-size:14px;
  line-height:1.6;
  position:relative;
  transition:var(--transition);
  display:inline-block;
}
.footer-links a::before{
  content:"";
  position:absolute;
  left:0;bottom:-2px;
  width:0;height:1px;
  background:var(--color-gold);
  transition:width .2s ease;
}
.footer-links a:hover{color:#fff}
.footer-links a:hover::before{width:100%}
.footer-contact p{
  font-size:14px;
  line-height:1.9;
  color:rgba(244,239,228,.68);
}
.footer-contact p strong{
  color:rgba(244,239,228,.9);
  font-weight:600;
}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:8px 24px;
  padding:24px 0;
  font-size:13px;
  color:rgba(244,239,228,.46);
}
.footer-bottom span:first-child{color:rgba(244,239,228,.6)}

/* responsive */
@media(max-width:1080px){
  .split-grid{grid-template-columns:minmax(0,1fr) 300px;gap:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px}
  .fit-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:992px){
  .section{padding:72px 0}
  .main-nav{
    position:fixed;
    top:72px;
    left:0;
    right:0;
    background:var(--color-bg);
    border-bottom:1px solid var(--color-border);
    flex-direction:column;
    align-items:stretch;
    gap:0;
    max-height:0;
    overflow:hidden;
    padding:0 24px;
    opacity:0;
    pointer-events:none;
    transition:opacity .2s ease, max-height .25s ease;
  }
  .main-nav.is-open{
    max-height:480px;
    opacity:1;
    pointer-events:auto;
  }
  .nav-link{
    padding:18px 4px;
    border-bottom:1px solid var(--color-border);
    font-size:16px;
  }
  .nav-toggle{
    display:inline-flex;
  }
  .nav-link::after{display:none}
  .nav-link.is-active{background:rgba(237,241,232,.4)}
  .split-grid{grid-template-columns:1fr}
  .sidebar-card{position:static}
  .intro-grid,.process-wrap,.faq-grid{grid-template-columns:1fr;gap:44px}
  .process-figure{min-height:360px}
  .faq-side{position:static}
  .cta-block{padding:48px 28px}
  .cta-form{grid-template-columns:1fr 1fr}
  .cta-form .btn-gold{grid-column:span 2;width:100%}
}
@media(max-width:768px){
  .page-hero{padding:138px 0 56px}
  .hero-actions .btn{width:100%;justify-content:center}
  .hero-meta{margin-top:40px;gap:0}
  .hero-meta div{padding-right:14px}
  .hero-meta strong{font-size:24px}
  .fit-grid{grid-template-columns:1fr}
  .process-figure{min-height:300px}
  .footer{font-size:14px}
  .footer-grid{grid-template-columns:1fr}
  .cta-form{grid-template-columns:1fr}
  .cta-form .btn-gold{grid-column:auto}
  .archive-head p{display:block}
}
@media(max-width:640px){
  .container{padding:0 18px}
  .section{padding:60px 0}
  .page-hero{padding:128px 0 52px}
  .hero-desc{font-size:16px}
  .intro-section{padding-top:60px}
  .campus-section,.process-section{padding-top:60px}
  .fit-item{padding:28px 22px 32px}
  .entry-top{display:block}
  .entry-tags{margin-top:10px}
  .cta-block{padding:36px 20px}
  .footer__content{padding-top:48px}
}

/* roulang page: article */
:root {
    --color-ink-950: #081F1D;
    --color-brand-deep: #0E3B34;
    --color-brand-main: #14574A;
    --color-brand-mid: #207760;
    --color-teal-soft: #7BC0AC;
    --color-gold: #C0A062;
    --color-gold-soft: #E6D3A7;
    --color-bg: #F7F5F0;
    --color-bg-soft: #EDF1E8;
    --color-surface: #FFFFFF;
    --color-surface-soft: #FAF9F6;
    --color-text-main: #1B2B28;
    --color-text-secondary: #556863;
    --color-border: #DDE4DC;
    --color-on-dark: #F4EFE4;
    --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
    --shadow-sm: 0 1px 0 rgba(7, 31, 25, .04), 0 8px 24px rgba(7, 31, 25, .06);
    --shadow-hover: 0 16px 32px rgba(7, 31, 25, .10);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text-main);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

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

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

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

:focus-visible {
    outline: 2px solid var(--color-gold);
    outline-offset: 2px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 clamp(20px, 4vw, 40px);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(247, 245, 240, .88);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--color-border);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.brand {
    display: inline-flex;
    align-items: baseline;
    gap: 2px;
    letter-spacing: -0.02em;
    line-height: 1;
}

.brand__mark {
    font-size: 26px;
    font-weight: 900;
    color: var(--color-brand-main);
}

.brand__text {
    font-size: 22px;
    font-weight: 500;
    color: var(--color-brand-deep);
}

.main-nav {
    display: flex;
    align-items: center;
    gap: clamp(20px, 3vw, 40px);
}

.nav-link {
    position: relative;
    display: inline-block;
    padding: 8px 0;
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text-secondary);
    white-space: nowrap;
    transition: color .2s ease;
}

.nav-link::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 0;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--color-gold), var(--color-gold-soft));
    transform: translateX(-50%);
    transition: width .25s ease;
}

.nav-link:hover,
.nav-link.is-active {
    color: var(--color-brand-deep);
}

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

.nav-link:focus-visible {
    outline: 2px solid var(--color-gold);
    outline-offset: 4px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 10px;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    cursor: pointer;
    transition: background .2s ease;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-brand-deep);
    border-radius: 2px;
    transition: transform .22s ease, opacity .22s ease;
}

.nav-toggle:hover {
    background: var(--color-bg-soft);
}

.nav-toggle.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

main {
    min-height: calc(100vh - 72px);
}

.article-hero {
    padding: 56px 0 30px;
}

.article-shell {
    max-width: 860px;
    margin: 0 auto;
}

.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-bottom: 28px;
    font-size: 13px;
    color: var(--color-text-secondary);
}

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

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

.breadcrumb__sep {
    color: #B4B9B0;
}

.breadcrumb__current {
    max-width: 360px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--color-brand-deep);
}

.article-kicker {
    display: inline-block;
    margin-bottom: 18px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: .12em;
    color: var(--color-gold);
}

.article-title {
    font-size: clamp(30px, 4.2vw, 48px);
    line-height: 1.25;
    font-weight: 800;
    letter-spacing: -0.015em;
    color: var(--color-brand-deep);
    margin-bottom: 28px;
}

.article-title--missing {
    text-align: center;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 24px;
    margin-bottom: 36px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--color-border);
    font-size: 13px;
    color: var(--color-text-secondary);
}

.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.meta-item dt {
    font-weight: 400;
    color: #8A948F;
}

.meta-item dd {
    color: var(--color-text-main);
    font-weight: 500;
}

.article-panel {
    background: var(--color-surface);
    border: 1px solid rgba(221, 228, 220, .8);
    border-radius: 28px;
    box-shadow: var(--shadow-sm);
    padding: clamp(28px, 5vw, 68px);
}

.article-content {
    color: var(--color-text-main);
    font-size: 17px;
    line-height: 1.95;
    overflow-wrap: break-word;
    word-break: break-word;
}

.article-content > p {
    margin-bottom: 26px;
}

.article-content > p:last-child {
    margin-bottom: 0;
}

.article-content h1,
.article-content h2,
.article-content h3,
.article-content h4 {
    color: var(--color-brand-deep);
    font-weight: 700;
    line-height: 1.4;
    margin-top: 46px;
    margin-bottom: 18px;
}

.article-content h1 {
    font-size: 30px;
}

.article-content h2 {
    position: relative;
    padding-left: 16px;
    font-size: 25px;
}

.article-content h2::before {
    content: "";
    position: absolute;
    left: 0;
    top: 10px;
    bottom: 10px;
    width: 3px;
    border-radius: 3px;
    background: var(--color-gold);
}

.article-content h3 {
    font-size: 21px;
}

.article-content h4 {
    font-size: 18px;
}

.article-content a {
    color: var(--color-brand-main);
    text-decoration: underline;
    text-decoration-color: rgba(32, 119, 96, .35);
    text-decoration-thickness: 1px;
    text-underline-offset: 4px;
    transition: color .2s ease, text-decoration-color .2s ease;
}

.article-content a:hover {
    color: var(--color-gold);
    text-decoration-color: var(--color-gold);
}

.article-content ul,
.article-content ol {
    margin: 0 0 26px;
    padding-left: 24px;
}

.article-content li {
    margin-bottom: 10px;
}

.article-content ul li::marker {
    color: var(--color-gold);
}

.article-content blockquote {
    position: relative;
    margin: 36px 0;
    padding: 26px 28px;
    background: var(--color-bg-soft);
    border-radius: 16px;
    border-left: 4px solid var(--color-gold);
    color: var(--color-text-main);
    font-size: 17px;
}

.article-content blockquote p {
    margin-bottom: 8px;
}

.article-content blockquote p:last-child {
    margin-bottom: 0;
}

.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    margin: 34px auto;
    box-shadow: var(--shadow-sm);
}

.article-content figure {
    margin: 34px 0;
}

.article-content figure img {
    margin-bottom: 12px;
}

.article-content figcaption {
    text-align: center;
    font-size: 13px;
    color: var(--color-text-secondary);
}

.article-content hr {
    border: 0;
    height: 1px;
    background: var(--color-border);
    margin: 42px 0;
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 32px 0;
    font-size: 15px;
}

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

.article-content th {
    background: var(--color-bg-soft);
    font-weight: 600;
    color: var(--color-brand-deep);
}

.article-content code {
    background: var(--color-bg-soft);
    border-radius: 6px;
    padding: 2px 6px;
    font-size: .92em;
}

.article-end {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-top: 42px;
    padding-top: 30px;
    border-top: 1px solid var(--color-border);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 22px;
    border-radius: 999px;
    border: 1px solid transparent;
    font-size: 15px;
    font-weight: 600;
    line-height: 1;
    cursor: pointer;
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}

.btn:active {
    transform: scale(.98);
}

.btn--ghost {
    background: transparent;
    border-color: var(--color-brand-mid);
    color: var(--color-brand-main);
}

.btn--ghost:hover {
    background: var(--color-bg-soft);
    border-color: var(--color-brand-deep);
    box-shadow: 0 8px 20px rgba(7, 31, 25, .08);
}

.btn--solid {
    background: linear-gradient(135deg, var(--color-brand-main), var(--color-brand-deep));
    color: #fff;
    box-shadow: 0 10px 24px rgba(14, 59, 52, .18);
}

.btn--solid:hover {
    transform: translateY(-1px);
    box-shadow: 0 18px 34px rgba(14, 59, 52, .22);
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--color-brand-main);
    font-size: 15px;
    font-weight: 600;
    transition: color .2s ease, gap .2s ease;
}

.text-link:hover {
    color: var(--color-gold);
    gap: 8px;
}

.missing-box {
    padding: 40px 20px;
    text-align: center;
}

.missing-box h1 {
    font-size: 40px;
    color: var(--color-brand-deep);
    margin-bottom: 18px;
}

.missing-box p {
    max-width: 520px;
    margin: 0 auto 30px;
    color: var(--color-text-secondary);
    font-size: 16px;
}

.guide-section {
    padding: 72px 0 96px;
}

.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
    margin-bottom: 42px;
}

.section-head__eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: .1em;
    color: var(--color-gold);
    margin-bottom: 12px;
}

.section-head__eyebrow::before {
    content: "";
    width: 26px;
    height: 1px;
    background: var(--color-gold);
}

.section-title {
    font-size: clamp(26px, 3vw, 36px);
    line-height: 1.3;
    font-weight: 700;
    color: var(--color-brand-deep);
    letter-spacing: -0.015em;
}

.section-desc {
    max-width: 640px;
    color: var(--color-text-secondary);
    font-size: 16px;
    line-height: 1.8;
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 24px;
}

.guide-card {
    position: relative;
    grid-column: span 3;
    overflow: hidden;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 24px;
    box-shadow: var(--shadow-sm);
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.guide-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(32, 119, 96, .35);
}

.guide-card__cover {
    overflow: hidden;
    aspect-ratio: 16 / 10;
    background: var(--color-bg-soft);
}

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

.guide-card:hover .guide-card__cover img {
    transform: scale(1.05);
}

.guide-card__body {
    padding: 24px 24px 28px;
}

.guide-card__term {
    display: inline-block;
    font-size: 13px;
    color: var(--color-gold);
    font-weight: 600;
    margin-bottom: 10px;
}

.guide-card__title {
    font-size: 19px;
    line-height: 1.4;
    font-weight: 700;
    color: var(--color-brand-deep);
    margin-bottom: 10px;
}

.guide-card__desc {
    font-size: 14px;
    line-height: 1.75;
    color: var(--color-text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.site-footer {
    background: var(--color-ink-950);
    color: var(--color-on-dark);
    padding: 72px 0 0;
}

.footer__content {
    max-width: 1200px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.3fr .9fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(244, 239, 228, .12);
}

.footer-brand {
    margin-bottom: 20px;
}

.footer-brand .brand__mark {
    color: #fff;
}

.footer-brand .brand__text {
    color: #fff;
}

.footer-desc {
    max-width: 320px;
    font-size: 14px;
    line-height: 1.85;
    color: rgba(244, 239, 228, .72);
}

.footer-title {
    position: relative;
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 20px;
    padding-bottom: 14px;
}

.footer-title::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 28px;
    height: 2px;
    background: var(--color-gold);
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(244, 239, 228, .78);
    font-size: 14px;
    transition: color .2s ease, padding-left .2s ease;
}

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

.footer-contact p {
    margin-bottom: 14px;
    color: rgba(244, 239, 228, .78);
    font-size: 14px;
    line-height: 1.75;
}

.footer-contact strong {
    display: block;
    color: #fff;
    font-weight: 600;
    margin-bottom: 2px;
}

.footer-bottom {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px 32px;
    padding: 24px 0 30px;
    color: rgba(244, 239, 228, .5);
    font-size: 13px;
}

.footer-bottom a {
    color: rgba(244, 239, 228, .7);
    transition: color .2s ease;
}

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

@media (max-width: 992px) {
    .nav-toggle {
        display: flex;
    }

    .main-nav {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 99;
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        background: rgba(247, 245, 240, .98);
        -webkit-backdrop-filter: blur(16px);
        backdrop-filter: blur(16px);
        padding: 28px 24px 40px;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-8px);
        transition: opacity .25s ease, transform .25s ease, visibility .25s ease;
        overflow-y: auto;
    }

    .main-nav.open {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .nav-link {
        display: block;
        padding: 18px 4px;
        font-size: 18px;
        border-bottom: 1px solid var(--color-border);
        color: var(--color-text-main);
    }

    .nav-link::after {
        display: none;
    }

    .guide-card {
        grid-column: span 6;
    }

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

@media (max-width: 640px) {
    .header__inner {
        height: 64px;
    }

    .nav-toggle {
        width: 40px;
        height: 40px;
    }

    .brand__mark {
        font-size: 23px;
    }

    .brand__text {
        font-size: 19px;
    }

    .article-hero {
        padding: 40px 0 20px;
    }

    .article-panel {
        border-radius: 20px;
        padding: 26px 20px;
    }

    .article-title {
        font-size: 29px;
    }

    .article-meta {
        gap: 10px 16px;
    }

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

    .guide-section {
        padding: 56px 0 68px;
    }

    .section-head {
        flex-direction: column;
        align-items: flex-start;
    }

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

    .guide-card {
        grid-column: span 1;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 34px;
    }

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

/* roulang page: category3 */
:root {
    --color-ink-950: #081F1D;
    --color-brand-deep: #0E3B34;
    --color-brand-main: #14574A;
    --color-brand-mid: #207760;
    --color-teal-soft: #7BC0AC;
    --color-gold: #C0A062;
    --color-gold-soft: #E6D3A7;
    --color-bg: #F7F5F0;
    --color-bg-soft: #EDF1E8;
    --color-surface: #FFFFFF;
    --color-text-main: #1B2B28;
    --color-text-secondary: #556863;
    --color-border: #DDE4DC;
    --color-on-dark: #F4EFE4;
    --radius-sm: 6px;
    --radius-btn: 999px;
    --radius-input: 12px;
    --radius-card: 16px;
    --radius-cover-card: 24px;
    --radius-panel: 32px;
    --shadow-card: 0 1px 0 rgba(7,31,25,.04), 0 8px 24px rgba(7,31,25,.06);
    --shadow-hover: 0 16px 32px rgba(7,31,25,.10);
    --container-width: 1200px;
    --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    margin: 0;
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text-main);
    font-size: 16px;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
  }

  body.no-scroll {
    overflow: hidden;
  }

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

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

  button,
  input,
  select,
  textarea {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
    color: inherit;
  }

  button {
    cursor: pointer;
    border: 0;
    background: none;
    padding: 0;
  }

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

  .visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }

  .container {
    width: min(var(--container-width), 100% - 40px);
    min-width: 0;
    margin-inline: auto;
  }

  @media (max-width: 520px) {
    .container {
      width: 100% - 32px;
    }
  }

  /* ===================== Header ==================== */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(247, 245, 240, 0.86);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--color-border);
  }

  .header__inner {
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
  }

  .brand {
    display: inline-flex;
    align-items: baseline;
    gap: 1px;
    font-size: 22px;
    letter-spacing: 0.02em;
    white-space: nowrap;
    color: var(--color-ink-950);
  }

  .brand__mark {
    font-weight: 800;
    color: var(--color-brand-deep);
  }

  .brand__text {
    font-weight: 400;
    color: var(--color-brand-main);
  }

  .main-nav {
    display: flex;
    align-items: center;
    gap: 34px;
    margin-left: auto;
  }

  .nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: 8px 0;
    transition: color 0.2s ease;
  }

  .nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 2px;
    width: 100%;
    height: 2px;
    background: var(--color-brand-main);
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 0.2s ease;
  }

  .nav-link:hover {
    color: var(--color-brand-deep);
  }

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

  .nav-link.is-active {
    color: var(--color-brand-deep);
    font-weight: 700;
  }

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

  .nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    width: 44px;
    height: 44px;
    padding: 10px;
    border-radius: 10px;
    background: var(--color-bg-soft);
    border: 1px solid var(--color-border);
    transition: background 0.2s ease;
  }

  .nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-brand-main);
    border-radius: 2px;
    transition: transform 0.2s ease, opacity 0.2s ease;
  }

  .nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  @media (max-width: 992px) {
    .nav-toggle {
      display: flex;
    }

    .main-nav {
      position: absolute;
      top: 100%;
      left: 0;
      right: 0;
      display: none;
      flex-direction: column;
      align-items: stretch;
      gap: 0;
      margin-left: 0;
      background: var(--color-surface);
      border-bottom: 1px solid var(--color-border);
      box-shadow: 0 20px 40px rgba(7, 31, 25, 0.08);
      padding: 8px 24px 20px;
    }

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

    .nav-link {
      padding: 16px 0;
      border-bottom: 1px solid var(--color-border);
      font-size: 16px;
    }

    .nav-link::after {
      display: none;
    }

    .nav-link.is-active {
      color: var(--color-brand-main);
    }

    .nav-link.is-active::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--color-gold);
      margin-right: 10px;
    }
  }

  /* ===================== Buttons ==================== */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 30px;
    border-radius: var(--radius-btn);
    font-weight: 700;
    font-size: 15px;
    line-height: 1.2;
    white-space: nowrap;
    border: 1px solid transparent;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
  }

  .btn--primary {
    background: linear-gradient(135deg, var(--color-brand-main), var(--color-brand-deep));
    color: #fff;
  }

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

  .btn--primary:active {
    transform: scale(0.98);
  }

  .btn--gold {
    background: linear-gradient(135deg, var(--color-gold-soft), var(--color-gold));
    color: var(--color-ink-950);
  }

  .btn--gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(8, 31, 29, 0.18);
  }

  .btn--gold:active {
    transform: scale(0.98);
  }

  .btn--ghost {
    background: transparent;
    border-color: rgba(244, 239, 228, 0.65);
    color: var(--color-on-dark);
  }

  .btn--ghost:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: #fff;
    transform: translateY(-2px);
  }

  .btn--ghost:active {
    transform: scale(0.98);
  }

  /* ===================== Page Hero ==================== */
  .page-hero {
    position: relative;
    isolation: isolate;
    padding: 92px 0 132px;
    color: var(--color-on-dark);
    background-image: linear-gradient(104deg, rgba(7, 29, 27, 0.94), rgba(12, 56, 50, 0.80)), url("/assets/images/backpic/back-1.png");
    background-size: cover;
    background-position: center;
  }

  .page-hero::after {
    content: "";
    position: absolute;
    inset: auto 0 0 0;
    height: 96px;
    background: linear-gradient(to bottom, transparent, var(--color-bg));
    z-index: -1;
    pointer-events: none;
  }

  .page-hero__inner {
    position: relative;
    z-index: 1;
  }

  .breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: rgba(244, 239, 228, 0.72);
    margin-bottom: 40px;
  }

  .breadcrumb a {
    color: rgba(244, 239, 228, 0.72);
    transition: color 0.2s ease;
  }

  .breadcrumb a:hover {
    color: #fff;
  }

  .breadcrumb-sep {
    color: rgba(244, 239, 228, 0.40);
  }

  .breadcrumb .current {
    color: var(--color-gold-soft);
  }

  .hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 0;
    margin: 0 0 24px;
    list-style: none;
  }

  .hero-tags li {
    display: inline-flex;
    align-items: center;
    font-size: 13px;
    font-weight: 500;
    padding: 6px 14px;
    border: 1px solid rgba(192, 160, 98, 0.4);
    border-radius: var(--radius-btn);
    color: var(--color-gold-soft);
    background: rgba(192, 160, 98, 0.08);
  }

  .page-hero h1 {
    max-width: 960px;
    margin: 0 0 26px;
    font-size: clamp(38px, 6vw, 58px);
    font-weight: 800;
    line-height: 1.18;
    letter-spacing: -0.02em;
    color: #fff;
  }

  .page-hero h1 .accent {
    color: var(--color-gold-soft);
    font-weight: 700;
  }

  .hero-lead {
    max-width: 780px;
    margin: 0 0 34px;
    font-size: 18px;
    line-height: 1.85;
    color: rgba(244, 239, 228, 0.88);
  }

  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
  }

  .hero-note {
    margin-top: 44px;
    font-size: 13px;
    color: rgba(244, 239, 228, 0.52);
    letter-spacing: 0.01em;
    border-left: 1px solid var(--color-gold);
    padding-left: 14px;
    max-width: 620px;
  }

  /* ===================== Metric Strip ==================== */
  .metric-strip {
    margin-top: -64px;
    position: relative;
    z-index: 5;
  }

  .metric-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-cover-card);
    box-shadow: var(--shadow-card);
    overflow: hidden;
  }

  .metric-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 28px 30px;
    border-right: 1px solid var(--color-border);
  }

  .metric-item:last-child {
    border-right: 0;
  }

  .metric-value {
    font-size: 28px;
    font-weight: 800;
    color: var(--color-brand-deep);
    line-height: 1.2;
    letter-spacing: -0.02em;
  }

  .metric-value small {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-brand-mid);
  }

  .metric-label {
    font-size: 14px;
    line-height: 1.6;
    color: var(--color-text-secondary);
  }

  @media (max-width: 992px) {
    .metric-grid {
      grid-template-columns: repeat(2, 1fr);
    }

    .metric-item:nth-child(2) {
      border-right: 0;
    }

    .metric-item:nth-child(-n+2) {
      border-bottom: 1px solid var(--color-border);
    }
  }

  @media (max-width: 560px) {
    .metric-grid {
      grid-template-columns: 1fr;
    }

    .metric-item {
      border-right: 0;
      border-bottom: 1px solid var(--color-border);
    }

    .metric-item:last-child {
      border-bottom: 0;
    }
  }

  /* ===================== Sections ==================== */
  .section {
    padding: 96px 0;
  }

  .section--soft {
    background: var(--color-bg-soft);
  }

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

  .section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 40px;
    margin-bottom: 48px;
  }

  .section-kicker {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-brand-mid);
    margin-bottom: 12px;
  }

  .section-kicker::before {
    content: "";
    width: 30px;
    height: 1px;
    background: var(--color-gold);
  }

  .section-title {
    margin: 0;
    font-size: clamp(28px, 4vw, 38px);
    font-weight: 800;
    line-height: 1.25;
    letter-spacing: -0.02em;
    color: var(--color-text-main);
  }

  .section-desc {
    max-width: 640px;
    margin: 16px 0 0;
    font-size: 16px;
    color: var(--color-text-secondary);
    line-height: 1.8;
  }

  .section-aside {
    max-width: 360px;
    font-size: 15px;
    line-height: 1.8;
    color: var(--color-text-secondary);
    padding-left: 20px;
    border-left: 1px solid var(--color-border);
  }

  @media (max-width: 768px) {
    .section {
      padding: 60px 0;
    }

    .section-head {
      flex-direction: column;
      gap: 16px;
      margin-bottom: 32px;
    }

    .section-aside {
      max-width: 100%;
      padding-left: 0;
      border-left: 0;
      border-top: 1px solid var(--color-border);
      padding-top: 16px;
    }
  }

  /* ===================== Course Comparison ==================== */
  .compare-layout {
    display: grid;
    grid-template-columns: 360px 1fr;
    gap: 64px;
  }

  .compare-info {
    position: sticky;
    top: 110px;
    align-self: start;
  }

  .compare-info h2 {
    margin: 0 0 20px;
    font-size: clamp(28px, 3vw, 36px);
    line-height: 1.3;
    letter-spacing: -0.02em;
  }

  .compare-info p {
    margin: 0;
    color: var(--color-text-secondary);
    font-size: 16px;
    line-height: 1.85;
  }

  .course-list {
    border-top: 1px solid var(--color-border);
  }

  .course-row {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 28px;
    padding: 38px 0;
    border-bottom: 1px solid var(--color-border);
    transition: background 0.2s ease;
  }

  .course-row:hover {
    background: rgba(237, 241, 232, 0.5);
  }

  .course-index {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 13px;
    font-weight: 700;
    color: var(--color-gold);
    letter-spacing: 0.05em;
    padding-top: 4px;
  }

  .course-index em {
    font-style: normal;
    color: var(--color-text-secondary);
    font-weight: 500;
  }

  .course-body h3 {
    margin: 0 0 10px;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--color-text-main);
  }

  .course-body .course-en {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-gold);
    margin-bottom: 12px;
    letter-spacing: 0.04em;
  }

  .course-body p {
    margin: 0 0 16px;
    color: var(--color-text-main);
    font-size: 16px;
    line-height: 1.85;
    max-width: 680px;
  }

  .course-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
  }

  .tag {
    display: inline-flex;
    align-items: center;
    padding: 5px 12px;
    font-size: 13px;
    border-radius: var(--radius-btn);
    background: var(--color-bg-soft);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    transition: color 0.2s ease, border-color 0.2s ease;
  }

  .tag:hover {
    color: var(--color-brand-main);
    border-color: var(--color-brand-mid);
  }

  .text-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 700;
    color: var(--color-brand-main);
    border-bottom: 1px solid rgba(20, 87, 74, 0.3);
    padding-bottom: 2px;
    transition: color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
  }

  .text-link::after {
    content: "→";
    transition: transform 0.2s ease;
  }

  .text-link:hover {
    color: var(--color-brand-deep);
    border-color: var(--color-brand-deep);
  }

  .text-link:hover::after {
    transform: translateX(3px);
  }

  @media (max-width: 1024px) {
    .compare-layout {
      grid-template-columns: 1fr;
      gap: 40px;
    }

    .compare-info {
      position: static;
    }
  }

  @media (max-width: 640px) {
    .course-row {
      grid-template-columns: 1fr;
      gap: 12px;
    }

    .course-index {
      padding-top: 0;
    }
  }

  /* ===================== Timeline Section ==================== */
  .timeline-section {
    position: relative;
    overflow: hidden;
  }

  .timeline-intro {
    max-width: 820px;
    margin-bottom: 64px;
  }

  .timeline-intro h2 {
    margin: 0 0 16px;
    font-size: clamp(28px, 3.4vw, 36px);
    line-height: 1.3;
    letter-spacing: -0.02em;
  }

  .timeline-intro p {
    margin: 0;
    font-size: 17px;
    line-height: 1.85;
    color: var(--color-text-secondary);
  }

  .timeline {
    position: relative;
    max-width: 920px;
    padding-left: 70px;
  }

  .timeline::before {
    content: "";
    position: absolute;
    left: 35px;
    top: 10px;
    bottom: 20px;
    width: 1px;
    background: linear-gradient(to bottom, var(--color-gold), var(--color-brand-mid), rgba(32, 119, 96, 0.1));
  }

  .timeline-item {
    position: relative;
    display: grid;
    grid-template-columns: 1fr;
    gap: 6px;
    padding-bottom: 50px;
  }

  .timeline-item:last-child {
    padding-bottom: 0;
  }

  .timeline-dot {
    position: absolute;
    left: -70px;
    top: 6px;
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-btn);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-card);
    color: var(--color-brand-deep);
    font-weight: 800;
    font-size: 15px;
    letter-spacing: -0.01em;
  }

  .timeline-item:nth-child(even) .timeline-dot {
    background: var(--color-ink-950);
    color: var(--color-gold-soft);
    border-color: var(--color-ink-950);
  }

  .timeline-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-cover-card);
    padding: 28px 34px;
    box-shadow: var(--shadow-card);
    transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
  }

  .timeline-card:hover {
    border-color: rgba(32, 119, 96, 0.4);
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
  }

  .timeline-card h3 {
    margin: 0 0 8px;
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text-main);
  }

  .timeline-card .timeline-step {
    display: block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: var(--color-gold);
    margin-bottom: 10px;
  }

  .timeline-card p {
    margin: 0;
    font-size: 15px;
    line-height: 1.8;
    color: var(--color-text-secondary);
  }

  @media (max-width: 700px) {
    .timeline {
      padding-left: 0;
    }

    .timeline::before {
      left: 22px;
    }

    .timeline-item {
      grid-template-columns: 1fr;
      padding-left: 70px;
    }

    .timeline-dot {
      left: 0;
      width: 44px;
      height: 44px;
      font-size: 12px;
    }

    .timeline-card {
      padding: 24px;
    }
  }

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

  .faq-wrap {
    display: grid;
    grid-template-columns: 0.72fr 1.4fr;
    gap: 56px;
    align-items: start;
  }

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

  .faq-intro .section-title {
    margin-bottom: 18px;
  }

  .faq-intro p {
    color: var(--color-text-secondary);
    font-size: 16px;
    line-height: 1.85;
    margin-bottom: 24px;
  }

  .faq-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

  .faq-item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-cover-card);
    overflow: hidden;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
  }

  .faq-item.is-open {
    border-color: rgba(20, 87, 74, 0.3);
    box-shadow: var(--shadow-card);
  }

  .faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    text-align: left;
    padding: 20px 26px;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text-main);
    cursor: pointer;
    transition: color 0.2s ease, background 0.2s ease;
  }

  .faq-question:hover {
    background: var(--color-bg-soft);
  }

  .faq-item.is-open .faq-question {
    color: var(--color-brand-deep);
  }

  .faq-icon {
    width: 28px;
    height: 28px;
    flex: 0 0 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--color-border);
    color: var(--color-gold);
    font-size: 18px;
    line-height: 1;
    transition: transform 0.2s ease, background 0.2s ease;
  }

  .faq-item.is-open .faq-icon {
    transform: rotate(45deg);
    background: var(--color-brand-main);
    color: #fff;
    border-color: var(--color-brand-main);
  }

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.28s ease;
  }

  .faq-answer-inner {
    padding: 2px 28px 26px;
    font-size: 15px;
    line-height: 1.85;
    color: var(--color-text-secondary);
  }

  .faq-item.is-open .faq-answer {
    max-height: 640px;
  }

  @media (max-width: 1024px) {
    .faq-wrap {
      grid-template-columns: 1fr;
      gap: 32px;
    }

    .faq-intro {
      position: static;
    }
  }

  /* ===================== CTA Panel ==================== */
  .cta-section {
    padding: 0 0 96px;
  }

  .cta-panel {
    position: relative;
    isolation: isolate;
    border-radius: var(--radius-panel);
    padding: 72px 72px;
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: 64px;
    align-items: center;
    color: var(--color-on-dark);
    overflow: hidden;
    background-image: linear-gradient(108deg, rgba(7, 29, 27, 0.97), rgba(14, 59, 52, 0.94)), url("/assets/images/backpic/back-2.webp");
    background-size: cover;
    background-position: center;
    box-shadow: var(--shadow-hover);
  }

  .cta-copy h2 {
    margin: 0 0 16px;
    font-size: clamp(28px, 3.4vw, 38px);
    line-height: 1.3;
    letter-spacing: -0.02em;
    color: #fff;
  }

  .cta-copy p {
    margin: 0;
    color: rgba(244, 239, 228, 0.82);
    font-size: 16px;
    line-height: 1.85;
    max-width: 480px;
  }

  .cta-copy .cta-note {
    margin-top: 24px;
    font-size: 14px;
    color: rgba(244, 239, 228, 0.62);
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .cta-copy .cta-note::before {
    content: "";
    width: 26px;
    height: 1px;
    background: var(--color-gold);
    flex: 0 0 26px;
  }

  .cta-form {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.16);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: var(--radius-cover-card);
    padding: 32px;
    display: grid;
    gap: 20px;
  }

  .form-field {
    display: grid;
    gap: 8px;
  }

  .form-field label {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-gold-soft);
    letter-spacing: 0.02em;
  }

  .form-field input,
  .form-field select,
  .form-field textarea {
    width: 100%;
    border-radius: var(--radius-input);
    border: 1px solid rgba(255, 255, 255, 0.22);
    background: rgba(255, 255, 255, 0.94);
    padding: 12px 16px;
    color: var(--color-text-main);
    font-size: 15px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
  }

  .form-field input:focus,
  .form-field select:focus,
  .form-field textarea:focus {
    outline: none;
    border-color: var(--color-gold);
    box-shadow: 0 0 0 3px rgba(192, 160, 98, 0.22);
  }

  .form-field select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231B2B28' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    background-size: 16px;
    padding-right: 42px;
  }

  .form-success {
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: var(--radius-cover-card);
    padding: 36px 24px;
    text-align: center;
  }

  .form-success.is-visible {
    display: flex;
  }

  .form-success span {
    color: var(--color-gold-soft);
    font-size: 16px;
    font-weight: 600;
  }

  @media (max-width: 1024px) {
    .cta-panel {
      grid-template-columns: 1fr;
      gap: 36px;
      padding: 44px 32px;
    }
  }

  @media (max-width: 520px) {
    .cta-panel {
      padding: 36px 18px;
      border-radius: 22px;
    }

    .cta-form {
      padding: 22px;
    }
  }

  /* ===================== Footer ==================== */
  .site-footer {
    background: var(--color-ink-950);
    color: rgba(244, 239, 228, 0.78);
    font-size: 14px;
    line-height: 1.8;
  }

  .footer__content {
    padding: 72px 0 36px;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1.2fr;
    gap: 56px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(244, 239, 228, 0.12);
  }

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

  .footer-brand .brand {
    color: var(--color-on-dark);
  }

  .footer-brand .brand__mark {
    color: var(--color-gold-soft);
  }

  .footer-brand .brand__text {
    color: var(--color-on-dark);
  }

  .footer-desc {
    max-width: 380px;
    margin: 16px 0 0;
    color: rgba(244, 239, 228, 0.62);
    font-size: 14px;
    line-height: 1.85;
  }

  .footer-title {
    margin: 0 0 18px;
    font-size: 16px;
    font-weight: 700;
    color: var(--color-gold-soft);
    letter-spacing: 0.02em;
  }

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

  .footer-links a {
    color: rgba(244, 239, 228, 0.7);
    transition: color 0.2s ease;
  }

  .footer-links a:hover {
    color: var(--color-gold-soft);
  }

  .footer-contact p {
    margin: 0 0 8px;
    color: rgba(244, 239, 228, 0.7);
  }

  .footer-contact strong {
    color: var(--color-on-dark);
    font-weight: 600;
  }

  .footer-bottom {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding-top: 28px;
    font-size: 13px;
    color: rgba(244, 239, 228, 0.48);
  }

  @media (max-width: 992px) {
    .footer-grid {
      grid-template-columns: 1fr 1fr;
      gap: 40px;
    }
  }

  @media (max-width: 640px) {
    .footer__content {
      padding-top: 52px;
    }

    .footer-grid {
      grid-template-columns: 1fr;
      gap: 32px;
    }

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

/* roulang page: category2 */
:root {
  --color-ink-950: #081F1D;
  --color-brand-deep: #0E3B34;
  --color-brand-main: #14574A;
  --color-brand-mid: #207760;
  --color-teal-soft: #7BC0AC;
  --color-gold: #C0A062;
  --color-gold-soft: #E6D3A7;
  --color-bg: #F7F5F0;
  --color-bg-soft: #EDF1E8;
  --color-surface: #FFFFFF;
  --color-text-main: #1B2B28;
  --color-text-secondary: #556863;
  --color-border: #DDE4DC;
  --color-on-dark: #F4EFE4;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  --radius-sm: 6px;
  --radius-btn: 12px;
  --radius-card: 20px;
  --radius-large: 32px;
  --shadow-card: 0 1px 0 rgba(7,31,25,.04), 0 8px 24px rgba(7,31,25,.06);
  --shadow-hover: 0 16px 32px rgba(7,31,25,.10);
  --container: 1200px;
  --space-section: clamp(56px, 7vw, 104px);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text-main);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body.nav-open { overflow: hidden; }
h1, h2, h3, h4, p, ul, ol, figure { margin: 0; }
img { max-width: 100%; display: block; }
a { color: var(--color-brand-main); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--color-brand-mid); }
button, input { font-family: inherit; font-size: inherit; }
[hidden] { display: none !important; }
[id] { scroll-margin-top: 90px; }

.container { max-width: var(--container); margin-inline: auto; padding-inline: 24px; }
.section { padding-block: var(--space-section); }
.section-head { max-width: 800px; margin-bottom: 46px; }
.section-title {
  font-size: clamp(28px, 3.6vw, 40px);
  line-height: 1.24;
  color: var(--color-ink-950);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-top: 12px;
}
.section-head .lead {
  font-size: 16px;
  color: var(--color-text-secondary);
  margin-top: 18px;
  max-width: 700px;
}
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-brand-main);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .14em;
}
.kicker::before { content: ""; width: 28px; height: 1px; background: var(--color-gold); }

/* header start */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(247, 245, 240, .90);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
}
.header__inner { max-width: var(--container); margin-inline: auto; padding-inline: 24px; height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.brand { display: inline-flex; align-items: baseline; gap: 2px; font-size: 23px; }
.brand__mark { font-weight: 800; color: var(--color-brand-main); letter-spacing: -.01em; }
.brand__text { font-weight: 600; color: var(--color-ink-950); letter-spacing: .14em; }
.brand:hover { color: inherit; }
.main-nav { display: flex; align-items: center; gap: 34px; }
.main-nav .nav-link {
  display: inline-block;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}
.main-nav .nav-link:hover { color: var(--color-text-main); }
.main-nav .nav-link.is-active { color: var(--color-brand-main); border-bottom-color: var(--color-brand-main); }
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
}
.nav-toggle span { display: block; width: 22px; height: 2px; border-radius: 2px; background: var(--color-ink-950); transition: transform .22s ease, opacity .22s ease; }
.nav-toggle:hover span { background: var(--color-brand-main); }
.site-header.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-header.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
.site-header.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* breadcrumb */
.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; font-size: 14px; color: rgba(244,239,228,.72); margin-bottom: 26px; }
.breadcrumb a { color: rgba(244,239,228,.88); transition: color .2s ease; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .breadcrumb__sep { color: rgba(244,239,228,.42); }
.breadcrumb [aria-current="page"] { color: var(--color-gold-soft); }

/* hero banner */
.cat-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(76px, 7vw, 120px) 0 clamp(56px, 5vw, 80px);
  color: var(--color-on-dark);
  background:
    linear-gradient(112deg, rgba(8,31,29,.95) 0%, rgba(14,59,52,.84) 48%, rgba(20,87,74,.72) 100%),
    url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
}
.cat-hero::after {
  content: "";
  position: absolute;
  right: -160px;
  top: -160px;
  width: 420px;
  height: 420px;
  border: 1px solid rgba(192,160,98,.32);
  border-radius: 50%;
  pointer-events: none;
}
.cat-hero__inner { position: relative; z-index: 2; }
.cat-hero h1 {
  font-size: clamp(34px, 5vw, 55px);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: #fff;
  max-width: 820px;
}
.cat-hero .hero-deck {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-gold-soft);
  margin-top: 16px;
}
.cat-hero .hero-lead {
  max-width: 720px;
  font-size: 17px;
  line-height: 1.85;
  color: rgba(244,239,228,.86);
  margin-top: 22px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }

/* buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
  padding: 11px 24px;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.btn:focus-visible { outline: 2px solid var(--color-gold); outline-offset: 3px; }
.btn-gold { background: linear-gradient(135deg, #D1AD72, #BE9851); color: #081F1D; box-shadow: 0 6px 18px rgba(0,0,0,.18); }
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgba(0,0,0,.22); color: #081F1D; }
.btn-ghost { border: 1px solid rgba(244,239,228,.58); color: var(--color-on-dark); background: rgba(255,255,255,.05); }
.btn-ghost:hover { background: rgba(255,255,255,.12); color: #fff; transform: translateY(-1px); }

/* hero mini index */
.hero-index {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(24px, 4vw, 56px);
  margin-top: clamp(42px, 5vw, 72px);
  padding-top: 26px;
  border-top: 1px solid rgba(244,239,228,.24);
}
.hero-index div { display: flex; flex-direction: column; gap: 4px; }
.hero-index strong { font-size: 15px; color: #fff; font-weight: 700; }
.hero-index span { font-size: 13px; color: rgba(244,239,228,.68); }

/* entry list */
.entry-list { border-top: 1px solid var(--color-border); }
.entry-item {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  align-items: center;
  gap: 18px;
  padding: 26px 6px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-main);
  transition: background .2s ease, padding-left .2s ease;
}
.entry-item:hover { padding-left: 16px; color: var(--color-brand-main); background: rgba(255,255,255,.6); }
.entry-no { font-size: 13px; font-weight: 600; color: var(--color-gold); letter-spacing: .06em; }
.entry-name { font-size: 16px; font-weight: 600; }
.entry-arrow { color: var(--color-brand-mid); font-size: 22px; transition: transform .2s ease; }
.entry-item:hover .entry-arrow { transform: translateX(4px); }

/* guide horizontal cards */
.feature-section {
  background:
    linear-gradient(to bottom, rgba(237,241,232,.35), transparent 24%),
    var(--color-bg);
}
.guide-rows { display: flex; flex-direction: column; gap: clamp(28px, 4vw, 54px); }
.guide-row {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  align-items: center;
  gap: clamp(20px, 3vw, 42px);
  background: var(--color-surface);
  border: 1px solid rgba(221,228,220,.72);
  border-radius: 28px;
  padding: clamp(18px, 2.4vw, 30px);
  box-shadow: var(--shadow-card);
  transition: box-shadow .25s ease, transform .25s ease;
}
.guide-row:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.guide-media {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--color-bg-soft);
}
.guide-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .55s ease; }
.guide-row:hover .guide-media img { transform: scale(1.035); }
.guide-row:nth-child(even) .guide-media { order: 2; }
.guide-row:nth-child(even) .guide-body { order: 1; }
.guide-body { padding: 8px 6px; }
.guide-kicker {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-brand-mid);
  letter-spacing: .06em;
  margin-bottom: 12px;
}
.guide-kicker span { display: inline-flex; color: var(--color-gold); border: 1px solid rgba(192,160,98,.55); padding: 3px 10px; border-radius: 999px; font-weight: 700; letter-spacing: .05em; }
.guide-body h3 { font-size: clamp(20px, 2.3vw, 27px); color: var(--color-ink-950); line-height: 1.35; font-weight: 800; }
.guide-body > p { margin-top: 14px; font-size: 15px; line-height: 1.85; color: var(--color-text-secondary); }
.point-list { list-style: none; margin-top: 18px; padding: 0; display: grid; gap: 9px; }
.point-list li { position: relative; padding-left: 20px; font-size: 14px; line-height: 1.7; color: var(--color-text-main); }
.point-list li::before { content: ""; position: absolute; left: 2px; top: .58em; width: 8px; height: 8px; border: 1px solid var(--color-gold); border-radius: 50%; }

/* method section */
.method-section { background: var(--color-bg-soft); }
.method-head { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: end; margin-bottom: 48px; }
.method-head .section-title { margin-top: 0; }
.method-head .lead { margin-top: 0; }
.method-list { border-top: 1px solid rgba(20,87,74,.16); }
.method-item { display: grid; grid-template-columns: 80px 260px 1fr; gap: 28px; padding: 30px 8px; border-bottom: 1px solid rgba(20,87,74,.14); align-items: start; }
.method-no { font-size: 13px; color: var(--color-gold); font-weight: 700; letter-spacing: .08em; padding-top: 5px; }
.method-inner h3 { font-size: 18px; color: var(--color-ink-950); font-weight: 700; line-height: 1.45; }
.method-inner p { font-size: 14px; color: var(--color-text-secondary); margin-top: 8px; line-height: 1.75; }

/* faq section */
.faq-list { max-width: 900px; border-top: 1px solid rgba(221,228,220,.9); }
.faq-item { border-bottom: 1px solid rgba(221,228,220,.9); }
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 22px 2px;
  background: none;
  border: 0;
  cursor: pointer;
  color: var(--color-text-main);
  font-size: 17px;
  font-weight: 600;
  font-family: var(--font-sans);
  text-align: left;
  transition: color .2s ease, padding-left .2s ease;
}
.faq-question:hover { color: var(--color-brand-main); padding-left: 6px; }
.faq-icon { position: relative; flex: 0 0 24px; width: 24px; height: 24px; border: 1px solid rgba(192,160,98,.7); border-radius: 50%; transition: transform .25s ease; }
.faq-icon::before, .faq-icon::after { content: ""; position: absolute; top: 50%; left: 50%; background: var(--color-brand-main); transform: translate(-50%, -50%); }
.faq-icon::before { width: 11px; height: 1.5px; }
.faq-icon::after { width: 1.5px; height: 11px; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-answer p { padding: 0 34px 22px 6px; font-size: 15px; color: var(--color-text-secondary); line-height: 1.85; }
.faq-item.is-open { background: rgba(255,255,255,.4); }
.faq-item.is-open .faq-question { color: var(--color-brand-main); }
.faq-item.is-open .faq-icon { transform: rotate(45deg); }

/* cta panel */
.cta-section { padding-block: 0 100px; }
.cta-panel {
  display: grid;
  grid-template-columns: minmax(0,1.1fr) minmax(300px,.9fr);
  align-items: center;
  gap: clamp(24px, 4vw, 64px);
  background: linear-gradient(120deg, #0C322C 0%, #14574A 64%, #1B6656 100%);
  border-radius: 32px;
  padding: clamp(28px, 4.6vw, 64px);
  color: var(--color-on-dark);
  box-shadow: 0 18px 40px rgba(8,31,29,.22);
  position: relative;
  overflow: hidden;
}
.cta-panel::before { content: ""; position: absolute; inset: 0; background: radial-gradient(600px 220px at 10% 0%, rgba(255,255,255,.06), transparent 60%); pointer-events: none; }
.cta-head h2 { color: #fff; font-size: clamp(24px, 3vw, 34px); line-height: 1.35; }
.cta-head p { color: rgba(244,239,228,.74); margin-top: 14px; font-size: 15px; }
.cta-right { position: relative; z-index: 2; }
.cta-form { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 6px; }
.cta-form input {
  flex: 1 1 160px;
  min-width: 0;
  background: #fff;
  border: 1px solid rgba(255,255,255,.5);
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 14px;
  color: var(--color-text-main);
  transition: border-color .2s ease, box-shadow .2s ease;
}
.cta-form input::placeholder { color: #9AABA5; }
.cta-form input:focus { outline: none; border-color: var(--color-gold); box-shadow: 0 0 0 3px rgba(192,160,98,.28); }
.cta-form .btn-ghost { background: rgba(255,255,255,.1); border-color: rgba(244,239,228,.7); }
.cta-form .btn-ghost:hover { background: rgba(255,255,255,.18); }
.cta-note { font-size: 12px; color: rgba(244,239,228,.56); margin-top: 14px; }
.form-success { margin-top: 14px; font-size: 14px; color: var(--color-gold-soft); background: rgba(255,255,255,.08); border: 1px solid rgba(230,211,167,.24); border-radius: 10px; padding: 10px 14px; }

/* footer */
.site-footer { background: var(--color-ink-950); color: rgba(244,239,228,.72); font-size: 14px; padding-top: 60px; margin-top: 0; }
.site-footer a { color: rgba(244,239,228,.76); transition: color .2s ease; }
.site-footer a:hover { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.35fr 1fr 1fr; gap: 46px; padding-bottom: 40px; }
.footer-brand .brand { color: #fff; font-size: 22px; }
.footer-brand .brand__mark { color: var(--color-gold); }
.footer-brand .brand__text { color: var(--color-on-dark); }
.footer-desc { margin-top: 16px; font-size: 14px; line-height: 1.8; color: rgba(244,239,228,.62); max-width: 360px; }
.footer-title { font-size: 14px; font-weight: 700; color: #fff; letter-spacing: .04em; margin-bottom: 16px; }
.footer-title span { display: inline-block; width: 16px; height: 1px; margin-right: 8px; vertical-align: middle; background: var(--color-gold); }
.footer-links { list-style: none; padding: 0; display: grid; gap: 8px; margin-bottom: 22px; }
.footer-contact p { line-height: 1.9; margin: 0; font-size: 13px; }
.footer-contact strong { color: rgba(244,239,228,.88); font-weight: 600; }
.footer-bottom { border-top: 1px solid rgba(244,239,228,.14); padding: 20px 0 24px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 20px; font-size: 12px; color: rgba(244,239,228,.52); }

.visually-hidden { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* responsive */
@media (max-width: 992px) {
  .nav-toggle { display: inline-flex; }
  .main-nav {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    max-height: max-content;
    background: rgba(247,245,240,.98);
    border-bottom: 1px solid var(--color-border);
    padding: 16px 24px 24px;
    transform: translateY(-10px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .24s ease, transform .24s ease;
  }
  .site-header.nav-open .main-nav { transform: none; opacity: 1; visibility: visible; pointer-events: auto; }
  .main-nav .nav-link { padding: 12px 0; border-bottom: 1px solid rgba(221,228,220,.62); border-radius: 0; }
  .guide-row { grid-template-columns: 1fr; }
  .guide-row:nth-child(even) .guide-media { order: 0; }
  .guide-row:nth-child(even) .guide-body { order: 1; }
  .guide-media { aspect-ratio: 16 / 9; }
  .method-head { grid-template-columns: 1fr; gap: 20px; }
  .method-item { grid-template-columns: 48px 1fr; }
  .method-inner p { margin-top: 6px; }
  .cta-panel { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .container { padding-inline: 18px; }
  .hero-index { grid-template-columns: 1fr; gap: 16px; }
  .entry-item { grid-template-columns: 40px 1fr auto; padding: 20px 2px; }
  .guide-row { border-radius: 22px; }
  .guide-row, .guide-row:nth-child(even) { padding: 14px; }
  .guide-body { padding: 8px 6px 14px; }
  .faq-question { font-size: 16px; padding: 20px 2px; }
  .cta-panel { border-radius: 24px; padding: 28px 22px; }
  .cta-right .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; }
}
@media (max-width: 520px) {
  .header__inner { padding-inline: 16px; height: 66px; }
  .cat-hero h1 { font-size: 32px; }
  .hero-deck { font-size: 17px; }
  .hero-actions .btn { width: 100%; }
  .section { padding-block: 52px; }
  .container { padding-inline: 16px; }
  .guide-media { aspect-ratio: 4 / 3; }
  .guide-kicker { align-items: flex-start; flex-direction: column; gap: 8px; }
  .method-item { grid-template-columns: 1fr; gap: 10px; padding: 24px 2px; }
  .method-no { padding: 0; }
  .cta-form { flex-direction: column; }
  .cta-form input { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}

/* roulang page: category4 */
:root {
  --color-ink-950: #081f1d;
  --color-brand-deep: #0e3b34;
  --color-brand-main: #14574a;
  --color-brand-mid: #207760;
  --color-teal-soft: #7bc0ac;
  --color-gold: #c0a062;
  --color-gold-soft: #e6d3a7;
  --color-bg: #f7f5f0;
  --color-bg-soft: #edf1e8;
  --color-surface: #ffffff;
  --color-text-main: #1b2b28;
  --color-text-secondary: #556863;
  --color-border: #dde4dc;
  --color-on-dark: #f4efe4;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  --radius-sm: 6px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --shadow-sm: 0 1px 0 rgba(7, 31, 25, .04), 0 8px 24px rgba(7, 31, 25, .06);
  --shadow-hover: 0 16px 32px rgba(7, 31, 25, .10);
  --container: 1200px;
  --section-space: 96px;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text-main);
  background: var(--color-bg);
  font-variant-numeric: tabular-nums;
}
img {
  display: block;
  max-width: 100%;
}
a {
  color: var(--color-brand-main);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}
button {
  font-family: inherit;
  cursor: pointer;
}
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}
section,
footer,
header {
  position: relative;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 245, 240, .92);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
}
.header__inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  font-size: 22px;
  line-height: 1;
  text-decoration: none;
  color: var(--color-text-main);
}
.brand__mark {
  font-weight: 800;
  color: var(--color-gold);
  letter-spacing: -0.02em;
}
.brand__text {
  font-weight: 400;
  letter-spacing: .02em;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 34px;
}
.nav-link {
  position: relative;
  display: inline-block;
  font-size: 15px;
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: 500;
  padding: 22px 0 18px;
  line-height: 1;
  transition: color .2s ease;
}
.nav-link:hover {
  color: var(--color-brand-main);
}
.nav-link.is-active {
  color: var(--color-brand-deep);
  font-weight: 700;
}
.nav-link.is-active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 12px;
  height: 2px;
  border-radius: 2px;
  background: var(--color-brand-main);
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 0;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: var(--color-brand-deep);
  transition: transform .2s ease, opacity .2s ease;
}

/* Footer */
.site-footer {
  background: var(--color-ink-950);
  color: rgba(244, 239, 228, .82);
  padding: 68px 0 24px;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr .9fr 1.2fr;
  gap: 56px;
  padding-bottom: 48px;
}
.footer-brand {
  margin-bottom: 16px;
}
.footer-brand .brand {
  color: var(--color-on-dark);
}
.footer-desc {
  max-width: 360px;
  font-size: 14px;
  line-height: 1.9;
  margin: 0;
  color: rgba(244, 239, 228, .7);
}
.footer-title {
  color: var(--color-on-dark);
  font-size: 15px;
  font-weight: 700;
  margin: 0 0 16px;
  letter-spacing: .02em;
}
.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  color: rgba(244, 239, 228, .72);
  font-size: 14px;
  text-decoration: none;
  transition: color .2s ease;
}
.footer-links a:hover {
  color: var(--color-gold-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.footer-contact {
  font-size: 14px;
  line-height: 1.9;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-contact strong {
  color: var(--color-gold-soft);
  font-weight: 600;
}
.footer-bottom {
  border-top: 1px solid rgba(244, 239, 228, .14);
  padding-top: 22px;
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 22px;
  color: rgba(244, 239, 228, .5);
}

/* Breadcrumb */
.breadcrumb-wrap {
  border-bottom: 1px solid var(--color-border);
  background: #fbfaf7;
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  padding: 18px 0;
  font-size: 13px;
  color: var(--color-text-secondary);
}
.breadcrumb a {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color .2s ease;
}
.breadcrumb a:hover {
  color: var(--color-brand-main);
}
.breadcrumb span {
  margin: 0 10px;
  color: rgba(27, 43, 40, .35);
}

/* Hero */
.c4-hero {
  isolation: isolate;
  overflow: hidden;
  color: var(--color-on-dark);
  padding: 92px 0 108px;
  background: var(--color-brand-deep);
}
.c4-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
}
.c4-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(104deg, rgba(8, 31, 29, .94) 0%, rgba(11, 58, 50, .82) 45%, rgba(14, 59, 52, .58) 100%);
}
.hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--color-gold-soft);
  margin: 0 0 22px;
}
.hero__eyebrow::before {
  content: "";
  width: 32px;
  height: 1px;
  background: rgba(192, 160, 98, .75);
}
.c4-hero h1 {
  font-size: clamp(32px, 5vw, 54px);
  line-height: 1.2;
  font-weight: 800;
  margin: 0 0 24px;
  max-width: 780px;
  letter-spacing: -0.02em;
  color: #fff;
}
.hero__lead {
  max-width: 720px;
  font-size: 17px;
  line-height: 2;
  margin: 0 0 36px;
  color: rgba(244, 239, 228, .88);
}
.hero__actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px 22px;
}
.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 22px 44px;
  margin-top: 72px;
  padding-top: 28px;
  border-top: 1px solid rgba(244, 239, 228, .16);
  max-width: 920px;
}
.badge-num {
  font-size: 26px;
  font-weight: 700;
  color: #fff;
  display: block;
  line-height: 1.2;
}
.badge-txt {
  font-size: 13px;
  color: rgba(244, 239, 228, .66);
  display: block;
  margin-top: 5px;
}

/* Buttons */
.btn {
  border: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  line-height: 1;
  padding: 14px 26px;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
  gap: 8px;
}
.btn-gold {
  color: var(--color-ink-950);
  background: linear-gradient(135deg, #d9bc82, var(--color-gold));
  box-shadow: 0 8px 20px rgba(122, 87, 28, .22);
}
.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(122, 87, 28, .3);
}
.btn-ghost-light {
  color: var(--color-on-dark);
  background: transparent;
  border: 1px solid rgba(244, 239, 228, .6);
}
.btn-ghost-light:hover {
  border-color: #fff;
  color: #fff;
}
.btn-dark {
  color: var(--color-on-dark);
  background: var(--color-brand-main);
  padding: 13px 30px;
}
.btn-dark:hover {
  background: var(--color-brand-deep);
  transform: translateY(-1px);
  box-shadow: var(--shadow-hover);
}

/* Section common */
.page-section {
  padding: var(--section-space) 0;
}
.page-section--soft {
  background: var(--color-bg-soft);
}
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 20px;
}
.section-kicker::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
}
.section-title {
  font-size: clamp(26px, 3.2vw, 36px);
  line-height: 1.34;
  letter-spacing: -0.02em;
  color: var(--color-ink-950);
  margin: 0 0 18px;
  font-weight: 800;
}
.section-desc {
  color: var(--color-text-secondary);
  font-size: 16px;
  line-height: 1.9;
  max-width: 640px;
  margin: 0;
}

/* Intro split */
.intro-grid {
  display: grid;
  grid-template-columns: .9fr 1.3fr;
  gap: 72px;
  align-items: end;
}
.intro-note {
  border-left: 2px solid var(--color-gold);
  padding-left: 24px;
  color: var(--color-text-main);
  font-size: 16px;
  line-height: 2;
  margin: 0;
}
.intro-points {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 32px;
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
}
.intro-point {
  position: relative;
  padding-left: 26px;
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.8;
}
.intro-point + .intro-point {
  margin-top: 18px;
}
.intro-point::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-gold);
}
@media (max-width: 992px) {
  .intro-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .intro-points {
    grid-template-columns: 1fr;
  }
}

/* Type cards */
.type-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 34px;
  margin-top: 48px;
}
.type-card {
  position: relative;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .25s ease, transform .25s ease;
}
.type-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(20, 87, 74, .35);
}
.type-card__media {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--color-bg-soft);
}
.type-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .45s ease;
}
.type-card:hover .type-card__media img {
  transform: scale(1.03);
}
.type-card__body {
  padding: 26px 28px 30px;
}
.type-card__body h3 {
  margin: 0 0 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-ink-950);
  line-height: 1.45;
}
.type-card__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--color-text-secondary);
}

/* Steps */
.steps-wrap {
  background: var(--color-brand-deep);
  border-radius: var(--radius-xl);
  color: var(--color-on-dark);
  padding: 56px 48px;
  margin-top: 0;
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  margin-top: 40px;
}
.step-item {
  position: relative;
}
.step-item::after {
  content: "";
  position: absolute;
  top: 28px;
  left: calc(100% + 14px);
  width: 34px;
  height: 1px;
  background: rgba(244, 239, 228, .35);
}
.step-item:last-child::after {
  display: none;
}
.step-num {
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .04em;
  color: var(--color-gold-soft);
  border: 1px solid rgba(230, 211, 167, .4);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-family: inherit;
}
.step-name {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  margin: 0 0 8px;
}
.step-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(244, 239, 228, .68);
}

/* FAQ */
.faq-wrap {
  max-width: 960px;
  margin: 48px auto 0;
}
.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: 18px;
  overflow: hidden;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.faq-item.is-open {
  border-color: rgba(192, 160, 98, .62);
  box-shadow: 0 12px 30px rgba(7, 31, 25, .07);
}
.faq-item__question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 24px 30px;
  background: transparent;
  border: 0;
  text-align: left;
  font-size: 17px;
  line-height: 1.6;
  font-weight: 600;
  color: var(--color-text-main);
  transition: background .2s ease;
}
.faq-item__question:hover {
  background: rgba(237, 241, 232, .45);
}
.faq-item__icon {
  flex: 0 0 24px;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .25s ease;
}
.faq-item__icon::before,
.faq-item__icon::after {
  content: "";
  position: absolute;
  display: block;
  width: 14px;
  height: 2px;
  background: var(--color-gold);
  border-radius: 2px;
}
.faq-item__icon {
  position: relative;
}
.faq-item__icon::after {
  transform: rotate(90deg);
  transition: transform .25s ease;
}
.faq-item.is-open .faq-item__icon::after {
  transform: rotate(0deg);
}
.faq-item__answer {
  display: none;
  padding: 0 30px 26px;
  font-size: 15px;
  line-height: 1.95;
  color: var(--color-text-secondary);
}
.faq-item.is-open .faq-item__answer {
  display: block;
}

/* CTA panel */
.cta-panel {
  background-color: var(--color-brand-deep);
  background-image: linear-gradient(rgba(8, 31, 29, .86), rgba(8, 31, 29, .86)), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center 20%;
  border-radius: var(--radius-xl);
  padding: 64px 56px;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 64px;
  align-items: center;
  color: var(--color-on-dark);
}
.cta-copy .section-title {
  color: #fff;
}
.cta-copy p {
  color: rgba(244, 239, 228, .78);
  line-height: 1.95;
  max-width: 480px;
}
.lead-form {
  background: rgba(255, 255, 255, .98);
  border-radius: var(--radius-lg);
  padding: 34px;
  color: var(--color-text-main);
  box-shadow: 0 28px 56px rgba(0, 0, 0, .2);
}
.form-row {
  margin-bottom: 22px;
}
.form-row label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-brand-deep);
}
.form-control {
  width: 100%;
  border: 1px solid var(--color-border);
  background: #fff;
  border-radius: 12px;
  padding: 13px 16px;
  font-family: inherit;
  font-size: 15px;
  color: var(--color-text-main);
  transition: border-color .2s ease, box-shadow .2s ease;
}
.form-control:focus {
  outline: none;
  border-color: var(--color-brand-mid);
  box-shadow: 0 0 0 3px rgba(123, 192, 172, .2);
}
.form-control::placeholder {
  color: #96a49f;
}
.form-choice {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
}
.form-choice label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  margin: 0;
  cursor: pointer;
  color: var(--color-text-main);
}
.form-hint {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin: 18px 0 20px;
  line-height: 1.7;
}
.form-success {
  display: none;
  text-align: center;
  padding: 42px 8px;
}
.form-success.is-show {
  display: block;
}
.form-success .icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-bg-soft);
  color: var(--color-brand-main);
  font-weight: 800;
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}
.form-success h3 {
  font-size: 20px;
  margin: 0 0 8px;
}
.form-success p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: 0;
}

/* Section spacing */
.section-footer-cta {
  padding: 0 0 96px;
}
.section-faq {
  padding-top: 96px;
  padding-bottom: 96px;
}

/* Media */
@media (max-width: 992px) {
  :root {
    --section-space: 72px;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .main-nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px 28px;
    background: rgba(247, 245, 240, .98);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--color-border);
    gap: 4px;
  }
  .site-header.nav-open .main-nav {
    display: flex;
  }
  .nav-link {
    width: 100%;
    padding: 13px 0;
    font-size: 16px;
    border-bottom: 1px solid rgba(221, 228, 220, .7);
  }
  .nav-link.is-active::after {
    bottom: 4px;
    right: auto;
    left: 0;
    width: 42px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .cta-panel {
    grid-template-columns: 1fr;
    padding: 42px 30px;
    gap: 38px;
  }
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .step-item::after {
    display: none;
  }
}
@media (max-width: 640px) {
  .c4-hero {
    padding: 64px 0 72px;
  }
  .hero__badges {
    margin-top: 52px;
    gap: 16px 28px;
  }
  .type-grid {
    grid-template-columns: 1fr;
  }
  .steps-grid {
    grid-template-columns: 1fr;
  }
  .steps-wrap {
    padding: 44px 26px;
  }
  .faq-item__question {
    padding: 20px 18px;
    font-size: 16px;
  }
  .faq-item__answer {
    padding: 0 18px 20px;
  }
  .section-title {
    font-size: 25px;
  }
  .page-section {
    padding: 56px 0;
  }
  .section-faq {
    padding-top: 56px;
    padding-bottom: 56px;
  }
  .cta-panel {
    border-radius: 24px;
    padding: 34px 20px;
  }
  .lead-form {
    padding: 22px 18px;
  }
  .footer-bottom {
    flex-direction: column;
  }
  .breadcrumb span {
    margin: 0 6px;
  }
}