/* roulang page: index */
:root {
  --primary: #146B5F;
  --primary-dark: #0E4F46;
  --primary-light: rgba(20, 107, 95, .1);
  --primary-ring: rgba(20, 107, 95, .18);
  --accent: #D99A26;
  --accent-dark: #C78A1E;
  --accent-light: rgba(217, 154, 38, .1);
  --accent-line: rgba(217, 154, 38, .2);
  --dark-bg: #0D2B26;
  --light-bg: #F6F3ED;
  --card-bg: #FFFFFF;
  --border: #E6E0D6;
  --text: #1F2925;
  --text-muted: #6B736F;
  --success: #2E8B57;
  --error: #C0392B;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .04);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, .08);
  --shadow-primary: 0 6px 16px rgba(20, 107, 95, .3);
  --container: 1200px;
  --header-h: 64px;
  --section-pad: 80px;
  --transition: .2s ease;
}

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

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

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

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition);
}

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

ul,
ol {
  list-style: none;
}

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: 1rem;
  border: none;
  outline: none;
  background: none;
}

input,
select,
textarea {
  width: 100%;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0 14px;
  font-size: .875rem;
  color: var(--text);
  background: #fff;
  transition: border-color var(--transition), box-shadow var(--transition);
}

textarea {
  height: 120px;
  padding: 12px 14px;
  resize: vertical;
  line-height: 1.5;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-ring);
}

label {
  font-size: .8125rem;
  font-weight: 600;
  color: var(--text);
  display: block;
  margin-bottom: 6px;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

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

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}

.section-tag {
  display: inline-block;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-light);
  border-radius: 999px;
  padding: 4px 14px;
  margin-bottom: 14px;
}

.section-head h2 {
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text);
  margin-bottom: 12px;
}

.section-head p {
  color: var(--text-muted);
  font-size: .9375rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 28px;
  border-radius: var(--radius-sm);
  font-size: .9375rem;
  font-weight: 600;
  letter-spacing: .02em;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition), border-color var(--transition);
  white-space: nowrap;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-primary);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: none;
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
}

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

.btn-accent {
  background: var(--accent);
  color: #2B1D05;
  border: 1px solid var(--accent);
}

.btn-accent:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: #2B1D05;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(217, 154, 38, .3);
}

.btn-sm {
  height: 36px;
  padding: 0 18px;
  font-size: .8125rem;
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background .3s ease, border-color .3s ease, box-shadow .3s ease;
}

.site-header.scrolled {
  background: rgba(246, 243, 237, .92);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom-color: rgba(230, 224, 214, .8);
  box-shadow: 0 4px 20px rgba(13, 43, 38, .06);
}

.header-inner {
  display: grid;
  grid-template-columns: 55% 45%;
  align-items: center;
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 28px;
}

.logo {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: .01em;
  white-space: nowrap;
}

.scrolled .logo,
.scrolled .main-nav a {
  color: var(--text);
}

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

.main-nav ul {
  display: flex;
  gap: 22px;
}

.main-nav a {
  font-size: .875rem;
  font-weight: 500;
  color: rgba(255, 255, 255, .92);
  padding: 6px 2px;
  position: relative;
  transition: color var(--transition);
}

.scrolled .main-nav a,
.main-nav a {
  color: var(--text);
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: width var(--transition);
}

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

.main-nav a.active {
  color: var(--primary);
  font-weight: 600;
}

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

.search-btn {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  cursor: pointer;
  color: var(--text);
  transition: background var(--transition);
}

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

.search-btn svg {
  width: 18px;
  height: 18px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}

.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);
}

/* ===== Hero ===== */
.hero {
  min-height: 640px;
  display: flex;
  align-items: center;
  background: var(--light-bg);
  padding-top: var(--header-h);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -80px;
  width: 420px;
  height: 420px;
  background: repeating-linear-gradient(45deg, transparent, transparent 22px, var(--accent-line) 22px, var(--accent-line) 23px);
  border-radius: 50%;
  opacity: .5;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 55% 45%;
  align-items: center;
  gap: 40px;
  position: relative;
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.hero-badge {
  display: inline-block;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--primary);
  background: var(--primary-light);
  border: 1px solid rgba(20, 107, 95, .14);
  border-radius: 999px;
  padding: 5px 16px;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(2.2rem, 4.5vw, 3.25rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: 16px;
  letter-spacing: -.01em;
}

.hero-sub {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 28px;
  max-width: 420px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.hero-note {
  font-size: .8125rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-note::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
  flex-shrink: 0;
}

.hero-visual {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.hero-visual img {
  width: 100%;
  height: 360px;
  object-fit: cover;
}

.hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(13, 43, 38, 0) 55%, rgba(13, 43, 38, .35) 100%);
  pointer-events: none;
}

/* ===== Ladder Steps ===== */
.ladder {
  background: #fff;
}

.ladder-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  align-items: start;
}

.ladder-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  position: relative;
}

.ladder-card:nth-child(2) {
  margin-top: 16px;
}

.ladder-card:nth-child(3) {
  margin-top: 32px;
}

.ladder-card:nth-child(4) {
  margin-top: 48px;
  background: var(--accent-light);
  border-color: rgba(217, 154, 38, .4);
}

.ladder-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.ladder-num {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--accent);
  margin-bottom: 10px;
}

.ladder-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text);
}

.ladder-card p {
  font-size: .875rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.ladder-card ul {
  margin-bottom: 18px;
}

.ladder-card li {
  font-size: .8125rem;
  color: var(--text);
  padding: 3px 0 3px 20px;
  position: relative;
}

.ladder-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
  opacity: .6;
}

.ladder-link {
  font-size: .875rem;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.ladder-link:hover {
  color: var(--primary-dark);
}

.ladder-link svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition);
}

.ladder-link:hover svg {
  transform: translateX(3px);
}

/* ===== Compare ===== */
.compare {
  background: var(--light-bg);
}

.compare-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  background: #fff;
  border: 1px solid var(--border);
  -webkit-overflow-scrolling: touch;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
  background: #fff;
}

.compare-table th,
.compare-table td {
  padding: 16px 20px;
  text-align: center;
  border-bottom: 1px solid var(--border);
  font-size: .875rem;
}

.compare-table th {
  font-weight: 600;
  color: var(--text);
  background: #FAF8F4;
}

.compare-table th:first-child {
  text-align: left;
}

.compare-table td:first-child {
  text-align: left;
  color: var(--text-muted);
  font-size: .875rem;
}

.compare-table tr:last-child th,
.compare-table tr:last-child td {
  border-bottom: none;
}

.compare-table .badge-col {
  position: relative;
}

.badge-col .badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #2B1D05;
  font-size: .6875rem;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: 999px;
  white-space: nowrap;
}

.compare-table .featured-col {
  background: var(--primary-light);
  border-left: 1px solid rgba(20, 107, 95, .2);
  border-right: 1px solid rgba(20, 107, 95, .2);
  transform: scale(1.02);
  box-shadow: 0 0 0 2px var(--primary);
  position: relative;
}

.compare-table .featured-col td {
  border-bottom-color: rgba(20, 107, 95, .1);
}

.compare-ok {
  color: var(--primary);
  font-weight: 700;
}

.compare-no {
  color: #D8D3C9;
}

.compare-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}

.compare-desc {
  font-size: .75rem;
  color: var(--text-muted);
  font-weight: 400;
  margin-top: 2px;
}

/* ===== Timed ===== */
.timed {
  background: linear-gradient(rgba(13, 43, 38, .94), rgba(13, 43, 38, .94)), repeating-linear-gradient(45deg, transparent, transparent 20px, rgba(217, 154, 38, .07) 20px, rgba(217, 154, 38, .07) 21px), url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
  color: #fff;
}

.timed-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.timed-text h2 {
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  font-weight: 700;
  margin-bottom: 10px;
}

.timed-text p {
  color: rgba(255, 255, 255, .75);
  font-size: .9375rem;
}

.timed-countdown {
  display: flex;
  gap: 12px;
  align-items: center;
}

.countdown-item {
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: var(--radius-sm);
  min-width: 70px;
  padding: 12px 8px;
  text-align: center;
}

.countdown-item span {
  display: block;
  font-family: "DIN Alternate", "Roboto Mono", monospace;
  font-size: 1.6rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  animation: breath 2.4s ease-in-out infinite;
}

.countdown-item small {
  display: block;
  font-size: .75rem;
  color: rgba(255, 255, 255, .6);
  margin-top: 4px;
}

@keyframes breath {
  0%, 100% { text-shadow: 0 0 4px rgba(217, 154, 38, .4); }
  50% { text-shadow: 0 0 14px rgba(217, 154, 38, .65); }
}

/* ===== FAQ ===== */
.faq-section {
  background: #fff;
}

.faq-list {
  max-width: 760px;
  margin: 0 auto;
}

.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 10px;
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.faq-item.active {
  border-color: rgba(217, 154, 38, .45);
  background: rgba(217, 154, 38, .04);
  box-shadow: var(--shadow-sm);
}

.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 50px;
  padding: 0 20px;
  font-size: .9375rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  gap: 16px;
}

.faq-q .icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 400;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

.faq-item.active .faq-q .icon {
  background: var(--accent);
  color: #2B1D05;
  transform: rotate(45deg);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease, padding .3s ease;
}

.faq-item.active .faq-a {
  max-height: 360px;
  padding: 0 20px 18px;
}

.faq-a p {
  font-size: .875rem;
  color: var(--text-muted);
  line-height: 1.8;
  border-top: 1px dashed var(--border);
  padding-top: 14px;
}

/* ===== Contact ===== */
.contact {
  background: var(--light-bg);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.contact-form-wrap h2 {
  font-size: clamp(1.4rem, 2vw, 1.75rem);
  margin-bottom: 8px;
}

.contact-form-wrap>p {
  color: var(--text-muted);
  font-size: .875rem;
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 18px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-status {
  margin-top: 12px;
  font-size: .875rem;
  display: none;
  align-items: center;
  gap: 6px;
}

.form-status.success {
  display: flex;
  color: var(--success);
}

.form-status.error {
  display: flex;
  color: var(--error);
}

.btn-loading {
  position: relative;
  pointer-events: none;
  opacity: .7;
}

.btn-loading .loader {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, .4);
  border-top-color: #fff;
  border-radius: 50%;
  display: inline-block;
  animation: spin .7s linear infinite;
  margin-right: 8px;
  vertical-align: middle;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.contact-side {
  background: var(--dark-bg);
  border-radius: var(--radius);
  padding: 32px;
  color: #fff;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-side h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.contact-side p {
  font-size: .875rem;
  color: rgba(255, 255, 255, .72);
  line-height: 1.7;
}

.contact-side .side-item {
  border-left: 2px solid var(--accent);
  padding-left: 16px;
}

.contact-side .side-link {
  color: var(--accent);
  font-weight: 600;
  font-size: .875rem;
}

.contact-side .side-link:hover {
  color: #fff;
}

/* ===== News ===== */
.news-section {
  background: #fff;
}

.news-list {
  max-width: 860px;
  margin: 0 auto;
}

.news-item {
  display: flex;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

.news-item:last-child {
  border-bottom: none;
}

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

.news-thumb {
  width: 160px;
  height: 108px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--light-bg);
}

.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .3s ease;
}

.news-item:hover .news-thumb img {
  transform: scale(1.04);
}

.news-body {
  flex: 1;
  min-width: 0;
}

.news-cat {
  display: inline-block;
  font-size: .6875rem;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  border-radius: 999px;
  padding: 2px 10px;
  margin-bottom: 8px;
}

.news-body h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 6px;
  line-height: 1.4;
}

.news-body h3 a {
  color: var(--text);
  transition: color var(--transition);
}

.news-body p {
  font-size: .8125rem;
  color: var(--text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-body time {
  display: block;
  font-size: .75rem;
  color: #B9B4AA;
  margin-top: 8px;
  font-variant-numeric: tabular-nums;
}

.news-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  font-size: .9375rem;
}

.news-empty .empty-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
  opacity: .4;
}

/* ===== CTA ===== */
.cta-section {
  background: var(--primary);
  color: #fff;
  text-align: center;
}

.cta-section h2 {
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  margin-bottom: 12px;
}

.cta-section p {
  color: rgba(255, 255, 255, .8);
  font-size: .9375rem;
  margin-bottom: 28px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

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

.cta-section .btn-primary:hover {
  background: rgba(255, 255, 255, .9);
  box-shadow: 0 6px 20px rgba(0, 0, 0, .18);
}

.cta-section .btn-outline {
  border-color: rgba(255, 255, 255, .6);
  color: #fff;
}

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

/* ===== Footer ===== */
.site-footer {
  background: var(--dark-bg);
  color: rgba(255, 255, 255, .7);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px 48px;
}

.footer-brand .logo {
  color: #fff;
  font-size: 1.25rem;
  margin-bottom: 12px;
  display: inline-block;
}

.footer-brand p {
  font-size: .8125rem;
  color: rgba(255, 255, 255, .55);
  line-height: 1.7;
  max-width: 260px;
}

.footer-col h4 {
  font-size: .9375rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 18px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  font-size: .8125rem;
  color: rgba(255, 255, 255, .55);
  transition: color var(--transition);
}

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

.footer-contact p {
  font-size: .8125rem;
  color: rgba(255, 255, 255, .55);
  line-height: 1.8;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .12);
  padding: 20px 0;
  text-align: center;
}

.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-bottom p {
  font-size: .75rem;
  color: rgba(255, 255, 255, .4);
}

.footer-bottom a {
  color: rgba(255, 255, 255, .4);
}

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

/* ===== Responsive ===== */
@media (max-width: 1023px) {
  :root {
    --section-pad: 60px;
  }

  .header-inner {
    grid-template-columns: 1fr auto;
  }

  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: rgba(246, 243, 237, .98);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s ease, padding .35s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, .08);
  }

  .main-nav.open {
    max-height: 320px;
    padding: 20px 24px;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 0;
  }

  .main-nav a {
    display: block;
    padding: 14px 4px;
    font-size: .9375rem;
    border-bottom: 1px solid rgba(230, 224, 214, .6);
  }

  .main-nav a:last-child {
    border-bottom: none;
  }

  .main-nav a::after {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .header-right .search-btn {
    display: none;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-top: 30px;
  }

  .hero {
    min-height: auto;
    padding-top: calc(var(--header-h) + 30px);
    padding-bottom: 40px;
  }

  .hero-visual img {
    height: 280px;
  }

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

  .ladder-card:nth-child(2) {
    margin-top: 0;
  }

  .ladder-card:nth-child(3) {
    margin-top: 0;
  }

  .ladder-card:nth-child(4) {
    margin-top: 0;
  }

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

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

@media (max-width: 767px) {
  :root {
    --section-pad: 48px;
    --header-h: 56px;
  }

  .container,
  .header-inner,
  .hero-grid,
  .contact-grid {
    padding-left: 16px;
    padding-right: 16px;
  }

  .header-inner {
    padding: 0 16px;
  }

  .logo {
    font-size: 1rem;
  }

  .hero h1 {
    font-size: clamp(1.75rem, 6vw, 2.25rem);
  }

  .hero-sub {
    font-size: 1rem;
  }

  .hero-visual img {
    height: 200px;
  }

  .hero-actions .btn {
    flex: 1;
    min-width: 140px;
  }

  .ladder-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .ladder-card:nth-child(2),
  .ladder-card:nth-child(3),
  .ladder-card:nth-child(4) {
    margin-top: 0;
  }

  .timed-inner {
    flex-direction: column;
    text-align: center;
  }

  .timed-countdown {
    justify-content: center;
  }

  .countdown-item {
    min-width: 60px;
    padding: 10px 4px;
  }

  .countdown-item span {
    font-size: 1.25rem;
  }

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

  .news-item {
    flex-direction: column;
    gap: 12px;
  }

  .news-thumb {
    width: 100%;
    height: 160px;
  }

  .compare-wrap {
    margin: 0 -16px;
    border-radius: 0;
    border-left: none;
    border-right: none;
  }

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

  .footer-bottom .container {
    flex-direction: column;
    text-align: center;
  }

  .cta-actions .btn {
    flex: 1;
    min-width: 140px;
  }
}

@media (max-width: 520px) {
  .hero-actions {
    flex-direction: column;
  }

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

  .cta-actions {
    flex-direction: column;
  }

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

/* roulang page: article */
:root{
  --primary:#146B5F;
  --primary-dark:#0F5349;
  --primary-light:rgba(20,107,95,.1);
  --accent:#D99A26;
  --accent-dark:#B8821F;
  --dark:#0D2B26;
  --bg:#F6F3ED;
  --card:#FFFFFF;
  --border:#E6E0D6;
  --text:#1F2925;
  --text-light:#6B736F;
  --success:#2E8B57;
  --error:#C0392B;
  --radius:12px;
  --radius-sm:8px;
  --shadow-sm:0 1px 2px rgba(0,0,0,.04);
  --shadow-md:0 8px 24px rgba(0,0,0,.08);
  --shadow-btn:0 6px 16px rgba(20,107,95,.3);
  --shadow-gold:0 6px 18px rgba(217,154,38,.32);
  --container:1200px;
  --font-main:"PingFang SC","Microsoft YaHei","HarmonyOS Sans SC","Noto Sans SC",sans-serif;
  --font-num:"DIN Alternate","Roboto Mono","SFMono-Regular",monospace;
  --space-lg:80px;
  --space-md:48px;
  --space-sm:24px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-main);background:var(--bg);color:var(--text);line-height:1.75;font-size:1rem}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-dark)}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input,textarea,select{font-family:inherit;font-size:14px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--space-sm)}
.container-narrow{max-width:780px}
section{position:relative}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 24px;border-radius:8px;font-size:15px;font-weight:600;line-height:1;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-btn)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-outline{background:transparent;border:1px solid var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateY(-1px)}
.btn-gold{background:var(--accent);color:#0D2B26}
.btn-gold:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-gold)}
.btn-outline-light{background:transparent;border:1px solid rgba(255,255,255,.7);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;height:64px;background:transparent;transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;border-bottom:1px solid transparent}
.site-header.scrolled{background:rgba(246,243,237,.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:0 4px 20px rgba(0,0,0,.04);border-bottom:1px solid rgba(230,224,214,.7)}
.header-inner{max-width:var(--container);height:100%;margin:0 auto;padding:0 var(--space-sm);display:flex;align-items:center;justify-content:space-between;gap:16px}
.header-left{display:flex;align-items:center;gap:36px;min-width:0}
.logo{font-size:20px;font-weight:700;color:var(--text);letter-spacing:-.2px;display:flex;align-items:baseline;line-height:1.2;white-space:nowrap}
.logo span{color:var(--accent)}
.site-header:not(.scrolled) .logo{color:#fff}
.site-header:not(.scrolled) .logo span{color:var(--accent)}
.main-nav ul{display:flex;gap:8px;align-items:center}
.main-nav ul li a{display:inline-block;padding:8px 14px;font-size:14px;font-weight:500;border-radius:6px;color:var(--text-light);transition:color .2s,background .2s}
.main-nav ul li a:hover{color:var(--primary);background:var(--primary-light)}
.main-nav ul li a.active{color:var(--primary);background:var(--primary-light);font-weight:600}
.site-header:not(.scrolled) .main-nav ul li a{color:rgba(255,255,255,.85)}
.site-header:not(.scrolled) .main-nav ul li a:hover{color:#fff;background:rgba(255,255,255,.12)}
.site-header:not(.scrolled) .main-nav ul li a.active{color:var(--accent);background:rgba(255,255,255,.1)}
.header-right{display:flex;align-items:center;gap:12px;flex-shrink:0}
.search-btn{width:40px;height:40px;border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--text-light);transition:background .2s,color .2s}
.search-btn:hover{background:var(--primary-light);color:var(--primary)}
.search-btn svg{width:20px;height:20px}
.site-header:not(.scrolled) .search-btn{color:rgba(255,255,255,.85)}
.site-header:not(.scrolled) .search-btn:hover{background:rgba(255,255,255,.12);color:#fff}
.nav-toggle{width:42px;height:42px;display:none;flex-direction:column;align-items:center;justify-content:center;gap:5px;border-radius:8px}
.nav-toggle span{width:20px;height:2px;background:var(--text);border-radius:2px;transition:transform .3s ease,opacity .3s ease}
.site-header:not(.scrolled) .nav-toggle span{background:#fff}
.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)}
.article-hero{background:linear-gradient(to right,rgba(13,43,38,.93),rgba(13,43,38,.72)),url('/assets/images/backpic/back-1.webp') center/cover no-repeat;color:#fff;padding:150px 0 52px;position:relative}
.article-hero::after{content:"";position:absolute;right:0;bottom:0;width:260px;height:260px;background:repeating-linear-gradient(135deg,rgba(217,154,38,.12) 0,rgba(217,154,38,.12) 1px,transparent 1px,transparent 12px);pointer-events:none}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:6px;font-size:14px;margin-bottom:24px;color:rgba(255,255,255,.72)}
.breadcrumb a{color:rgba(255,255,255,.85)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:rgba(255,255,255,.45)}
.breadcrumb .current{color:#fff;font-weight:500;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cat-tag{display:inline-flex;align-items:center;padding:4px 12px;background:rgba(217,154,38,.18);border:1px solid rgba(217,154,38,.5);color:var(--accent);border-radius:20px;font-size:12px;font-weight:600;letter-spacing:1px;margin-bottom:14px}
.article-hero-meta{position:relative;z-index:2}
.article-hero-meta h1{font-size:clamp(1.8rem,3.2vw,2.4rem);line-height:1.25;font-weight:700;letter-spacing:-.3px;margin-bottom:16px;max-width:860px;text-shadow:0 2px 12px rgba(0,0,0,.2)}
.article-meta-info{display:flex;align-items:center;gap:16px;font-size:13px;color:rgba(255,255,255,.75)}
.article-meta-info .meta-item{display:inline-flex;align-items:center;gap:6px}
.article-meta-info svg{width:14px;height:14px;opacity:.7}
.article-body{background:var(--bg);padding:56px 0 var(--space-lg)}
.article-content{font-size:16px;line-height:1.8;color:var(--text)}
.article-content p{margin:0 0 1.5em}
.article-content h2{font-size:1.5rem;font-weight:700;line-height:1.4;color:var(--text);border-left:4px solid var(--primary);padding-left:14px;margin:2.4em 0 1em}
.article-content h3{font-size:1.22rem;font-weight:600;line-height:1.45;color:var(--text);border-left:3px solid var(--accent);padding-left:12px;margin:2em 0 .9em}
.article-content h4{font-size:1.08rem;font-weight:600;color:var(--text);margin:1.5em 0 .6em}
.article-content ul{margin:0 0 1.5em;padding-left:1.4em}
.article-content ul li{position:relative;margin-bottom:.55em}
.article-content ul li::before{content:"";position:absolute;left:-1.2em;top:.62em;width:6px;height:6px;background:var(--primary);border-radius:50%}
.article-content ol{margin:0 0 1.5em;padding-left:1.5em;counter-reset:article-ol}
.article-content ol li{counter-increment:article-ol;position:relative;margin-bottom:.55em;padding-left:.4em}
.article-content ol li::before{content:counter(article-ol) ".";color:var(--primary);font-weight:700;margin-right:.35em}
.article-content blockquote{background:#fff;border-left:4px solid var(--primary);padding:16px 22px;border-radius:0 8px 8px 0;margin:1.6em 0;color:var(--text-light);font-size:15px}
.article-content blockquote p{margin-bottom:.4em}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{max-width:100%;height:auto;border-radius:12px;margin:1.6em 0;box-shadow:var(--shadow-sm)}
.article-content a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.article-content a:hover{color:var(--primary-dark)}
.article-content table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:14px}
.article-content table th,.article-content table td{border:1px solid var(--border);padding:10px 14px;text-align:left}
.article-content table th{background:var(--bg);font-weight:600;color:var(--text)}
.article-content table tr:nth-child(even) td{background:rgba(246,243,237,.4)}
.not-found{text-align:center;padding:64px 24px;background:#fff;border-radius:16px;border:1px dashed var(--border)}
.not-found-icon{width:64px;height:64px;margin:0 auto 20px;border-radius:50%;background:var(--primary-light);display:flex;align-items:center;justify-content:center;color:var(--primary)}
.not-found-icon svg{width:30px;height:30px}
.not-found h2{font-size:1.4rem;color:var(--text);margin-bottom:8px}
.not-found p{color:var(--text-light);margin-bottom:24px;font-size:14px}
.article-extras{background:#fff;padding:44px 0 56px;border-top:1px solid var(--border)}
.article-tags{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.tags-label{font-size:13px;font-weight:600;color:var(--text-light);margin-right:4px}
.article-tags a{display:inline-flex;align-items:center;padding:6px 14px;background:var(--bg);border:1px solid var(--border);border-radius:20px;font-size:13px;color:var(--text-light);transition:all .2s ease}
.article-tags a:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-light)}
.article-pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;border-top:1px solid var(--border);padding-top:28px}
.pager-link{display:flex;flex-direction:column;gap:4px;padding:16px 20px;border-radius:12px;border:1px solid var(--border);background:var(--bg);transition:all .2s ease}
.pager-link:hover{border-color:var(--primary);box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.pager-link .pager-label{font-size:12px;color:var(--text-light);font-weight:500}
.pager-link .pager-title{font-size:15px;font-weight:600;color:var(--text);line-height:1.4}
.pager-link:hover .pager-title{color:var(--primary)}
.pager-link.pager-next{text-align:right;align-items:flex-end}
.related-section{padding:var(--space-lg) 0}
.related-section .section-header{text-align:center;margin-bottom:40px}
.related-section .section-header h2{font-size:clamp(1.4rem,2.4vw,1.8rem);font-weight:700;color:var(--text);margin-bottom:8px}
.related-section .section-header p{font-size:14px;color:var(--text-light)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{background:#fff;border:1px solid var(--border);border-radius:16px;overflow:hidden;transition:all .3s ease;box-shadow:var(--shadow-sm);display:flex;flex-direction:column}
.related-card:hover{border-color:var(--primary);box-shadow:var(--shadow-md);transform:translateY(-4px)}
.related-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--dark)}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.related-card:hover .related-thumb img{transform:scale(1.04)}
.related-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(13,43,38,.25),transparent 60%)}
.related-body{flex:1;padding:20px 22px 22px;display:flex;flex-direction:column}
.related-body h3{font-size:1.05rem;font-weight:600;color:var(--text);margin-bottom:6px;line-height:1.4}
.related-card:hover .related-body h3{color:var(--primary)}
.related-body .related-desc{font-size:13px;color:var(--text-light);line-height:1.65;flex:1;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-meta{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--text-light)}
.related-meta .related-date{display:inline-flex;align-items:center;gap:5px}
.related-meta .related-arrow{color:var(--primary);font-weight:600}
.cta-section{padding:0 0 var(--space-lg)}
.cta-card{background:linear-gradient(135deg,var(--dark) 0%,#12352E 100%);border-radius:20px;padding:48px 48px;color:#fff;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:space-between;gap:40px;box-shadow:0 12px 36px rgba(13,43,38,.25)}
.cta-card::before{content:"";position:absolute;left:-60px;top:-60px;width:180px;height:180px;border-radius:50%;background:radial-gradient(circle,rgba(217,154,38,.18),transparent 65%)}
.cta-card::after{content:"";position:absolute;right:0;bottom:0;width:200px;height:200px;background:repeating-linear-gradient(135deg,rgba(217,154,38,.1) 0,rgba(217,154,38,.1) 1px,transparent 1px,transparent 14px)}
.cta-content{position:relative;z-index:2;flex:1}
.cta-content h2{font-size:clamp(1.3rem,2vw,1.7rem);font-weight:700;line-height:1.35;margin-bottom:10px}
.cta-content p{font-size:14px;color:rgba(255,255,255,.75);margin-bottom:0;max-width:520px}
.cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex-shrink:0;flex-wrap:wrap}
.site-footer{background:var(--dark);color:rgba(255,255,255,.75);padding:64px 0 0}
.footer-grid{max-width:var(--container);margin:0 auto;padding:0 var(--space-sm);display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:48px;padding-bottom:48px}
.footer-brand .logo{color:#fff;margin-bottom:14px}
.footer-brand .logo span{color:var(--accent)}
.footer-brand p{font-size:13px;line-height:1.75;color:rgba(255,255,255,.6);max-width:280px}
.footer-col h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:13px;color:rgba(255,255,255,.6);transition:color .2s ease,padding .2s ease}
.footer-col ul li a:hover{color:#fff;padding-left:4px}
.footer-contact p{font-size:13px;line-height:1.7;margin-bottom:8px;color:rgba(255,255,255,.6)}
.footer-contact a{color:rgba(255,255,255,.6)}
.footer-contact a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0}
.footer-bottom .container{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.footer-bottom p{font-size:12px;color:rgba(255,255,255,.45)}
.footer-bottom p a{color:rgba(255,255,255,.45)}
.footer-bottom p a:hover{color:#fff}
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .header-left{gap:20px}
  .main-nav ul li a{padding:8px 10px;font-size:13px}
}
@media (max-width:900px){
  .site-header{height:56px}
  .article-hero{padding:120px 0 44px}
  .header-left{gap:12px}
  .nav-toggle{display:flex}
  .main-nav{position:fixed;top:56px;left:0;right:0;background:#fff;border-bottom:1px solid var(--border);padding:16px 24px 20px;transform:translateY(-120%);opacity:0;visibility:hidden;transition:transform .3s ease,opacity .3s ease;box-shadow:0 16px 32px rgba(0,0,0,.08)}
  .main-nav.open{transform:translateY(0);opacity:1;visibility:visible}
  .main-nav ul{flex-direction:column;gap:4px}
  .main-nav ul li a{display:block;padding:12px 16px;font-size:15px;border-radius:8px}
  .site-header:not(.scrolled) .main-nav ul li a{color:var(--text)}
  .site-header:not(.scrolled) .main-nav ul li a:hover{background:var(--primary-light);color:var(--primary)}
  .site-header:not(.scrolled) .main-nav ul li a.active{color:var(--primary);background:var(--primary-light)}
  .related-grid{grid-template-columns:1fr;gap:16px}
  .cta-card{flex-direction:column;text-align:center;padding:36px 24px}
  .cta-actions{justify-content:center}
  .article-pager{grid-template-columns:1fr}
  .pager-link.pager-next{text-align:left;align-items:flex-start}
}
@media (max-width:640px){
  :root{--space-lg:48px;--space-md:32px}
  .header-right .btn-sm{display:none}
  .breadcrumb{font-size:13px}
  .article-hero-meta h1{font-size:1.5rem}
  .article-content{font-size:15px}
  .related-thumb{aspect-ratio:16/9}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom .container{flex-direction:column;text-align:center}
  .cta-card{padding:28px 20px}
}

/* roulang page: category1 */
:root{
--primary:#146B5F;--primary-dark:#0F5A50;--primary-light:rgba(20,107,95,.10);
--accent:#D99A26;--accent-light:rgba(217,154,38,.10);
--dark:#0D2B26;--bg:#F6F3ED;--card:#FFFFFF;--border:#E6E0D6;
--text:#1F2925;--muted:#6B736F;--success:#2E8B57;--error:#C0392B;
--radius:12px;--radius-md:8px;
--shadow-sm:0 1px 2px rgba(0,0,0,.04);--shadow-md:0 8px 24px rgba(0,0,0,.08);
--nav-h:64px;--spacer:80px;--spacer-sm:48px;
--font:'PingFang SC','Microsoft YaHei','HarmonyOS Sans SC','Noto Sans SC',sans-serif;
--font-num:'DIN Alternate','Roboto Mono',monospace;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);font-size:16px;line-height:1.75;color:var(--text);background:var(--bg)}
img,svg{display:block;max-width:100%}
a{color:var(--primary);text-decoration:none;transition:color .2s}
a:hover{color:var(--primary-dark)}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:transparent}
input,textarea,select{font-family:inherit;font-size:1rem}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 28px;border-radius:var(--radius-md);font-size:15px;font-weight:600;white-space:nowrap;transition:transform .2s,box-shadow .2s,background .2s,color .2s,border-color .2s;line-height:1;min-height:44px}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 6px 16px rgba(20,107,95,.30)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-outline{background:transparent;border:1px solid var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary-light);border-color:var(--primary);color:var(--primary-dark)}
.btn-outline-light{background:transparent;border:1px solid rgba(255,255,255,.65);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.10);border-color:#fff;color:#fff}
.btn-accent{background:var(--accent);color:var(--dark)}
.btn-accent:hover{background:#E0A636;color:var(--dark);transform:translateY(-1px);box-shadow:0 6px 16px rgba(217,154,38,.32)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-lg{height:52px;padding:0 36px;font-size:16px}
.section-head{max-width:720px;margin-bottom:36px}
.section-tag{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;letter-spacing:.04em;color:var(--primary);background:var(--primary-light);border-radius:100px;padding:6px 14px;margin-bottom:14px}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2rem);font-weight:700;line-height:1.25;color:var(--text);margin-bottom:12px}
.section-head p{font-size:15px;color:var(--muted);line-height:1.8}
/* header */
.site-header{position:fixed;top:0;left:0;width:100%;height:var(--nav-h);z-index:1000;transition:background .35s,box-shadow .35s,border-color .35s;border-bottom:1px solid transparent}
.site-header.scrolled{background:rgba(246,243,237,.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--border);box-shadow:0 2px 12px rgba(0,0,0,.04)}
.header-inner{max-width:1200px;height:100%;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between}
.header-left{display:flex;align-items:center;gap:40px}
.header-right{display:flex;align-items:center;gap:12px}
.logo{font-size:1.25rem;font-weight:700;color:var(--text);letter-spacing:.01em;transition:color .3s}
.logo span{color:var(--primary)}
.main-nav ul{display:flex;align-items:center;gap:28px}
.main-nav a{font-size:15px;font-weight:500;color:var(--text);position:relative;padding:6px 2px;transition:color .3s}
.main-nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--primary);border-radius:2px;transition:width .25s}
.main-nav a.active{color:var(--primary)}
.main-nav a.active::after{width:100%}
.main-nav a:hover{color:var(--primary)}
.main-nav a:hover::after{width:100%}
.search-btn{width:42px;height:42px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;color:var(--text);border:1px solid var(--border);background:rgba(255,255,255,.55);transition:background .2s,color .2s,border-color .2s}
.search-btn:hover{background:var(--primary-light);border-color:var(--primary);color:var(--primary)}
.search-btn svg{width:19px;height:19px}
.nav-toggle{display:none;flex-direction:column;align-items:center;justify-content:center;gap:5px;width:44px;height:44px;border-radius:8px;border:1px solid var(--border);background:rgba(255,255,255,.6)}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--text);border-radius:2px;transition:transform .3s,opacity .3s}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.site-header:not(.scrolled) .logo{color:#fff}
.site-header:not(.scrolled) .logo span{color:#fff}
.site-header:not(.scrolled) .main-nav a{color:rgba(255,255,255,.92)}
.site-header:not(.scrolled) .main-nav a.active{color:#fff}
.site-header:not(.scrolled) .main-nav a::after{background:#fff}
.site-header:not(.scrolled) .search-btn{color:#fff;border-color:rgba(255,255,255,.4);background:rgba(255,255,255,.08)}
.site-header:not(.scrolled) .btn-primary{background:var(--accent);color:var(--dark);box-shadow:0 4px 12px rgba(0,0,0,.16)}
.site-header.nav-open:not(.scrolled){background:var(--bg);border-bottom:1px solid var(--border)}
.site-header.nav-open:not(.scrolled) .logo,.site-header.nav-open:not(.scrolled) .logo span{color:var(--text)}
.site-header.nav-open:not(.scrolled) .main-nav a{color:var(--text)}
.site-header.nav-open:not(.scrolled) .main-nav a.active{color:var(--primary)}
.site-header.nav-open:not(.scrolled) .search-btn{color:var(--text);border-color:var(--border);background:#fff}
/* banner */
.page-banner{position:relative;min-height:76vh;display:flex;align-items:center;background:url('/assets/images/backpic/back-1.webp') no-repeat center/cover;padding:calc(var(--nav-h) + 64px) 0 80px}
.page-banner::before{content:"";position:absolute;inset:0;background:linear-gradient(95deg,rgba(13,43,38,.82) 15%,rgba(13,43,38,.55) 50%,rgba(13,43,38,.35) 100%)}
.banner-content{position:relative;z-index:2}
.breadcrumb{font-size:13px;color:rgba(255,255,255,.75);margin-bottom:24px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.breadcrumb a{color:rgba(255,255,255,.9);transition:color .2s}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.55;margin:0 2px}
.page-banner h1{font-size:clamp(2.2rem,4.5vw,3.25rem);font-weight:700;line-height:1.18;color:#fff;margin-bottom:16px;max-width:820px;letter-spacing:.01em}
.banner-lead{font-size:clamp(1.05rem,1.4vw,1.2rem);line-height:1.8;color:rgba(255,255,255,.92);max-width:600px;margin-bottom:28px}
.banner-actions{display:flex;gap:14px;flex-wrap:wrap}
.banner-note{margin-top:22px;font-size:13px;color:rgba(255,255,255,.66)}
/* guide steps */
.guide-section{padding:var(--spacer) 0;background:var(--bg)}
.guide-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.guide-step{position:relative;padding:8px 4px 0}
.step-num{font-family:var(--font-num);font-size:15px;font-weight:700;color:var(--accent);display:flex;align-items:center;gap:10px;margin-bottom:14px}
.step-num::before{content:"";width:9px;height:9px;border-radius:50%;background:var(--accent);display:inline-block}
.guide-step h3{font-size:1.06rem;font-weight:600;color:var(--text);margin-bottom:8px}
.guide-step p{font-size:14px;color:var(--muted);line-height:1.7;margin:0}
.guide-step::after{content:"";position:absolute;top:17px;right:-12px;width:24px;height:1px;border-top:1px dashed rgba(217,154,38,.5)}
.guide-step:last-child::after{display:none}
/* access list section */
.access-list-section{padding:0 0 var(--spacer);background:var(--bg)}
.access-list-wrap{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm);overflow:hidden}
.access-list{display:flex;flex-direction:column}
.access-item{display:grid;grid-template-columns:110px 1fr;gap:24px;padding:26px 28px;border-bottom:1px solid var(--border);transition:background .2s}
.access-item:last-child{border-bottom:none}
.access-item:hover{background:rgba(20,107,95,.03)}
.item-date{font-family:var(--font-num);font-size:14px;font-weight:600;color:var(--muted);letter-spacing:.02em;padding-top:2px;display:flex;align-items:flex-start;gap:8px}
.item-date::before{content:"";width:3px;height:16px;border-radius:2px;background:var(--primary);margin-top:5px}
.item-body h3{font-size:1.06rem;font-weight:600;color:var(--text);margin-bottom:6px;line-height:1.5}
.item-body p{font-size:14px;color:var(--muted);line-height:1.75;margin:0}
.access-figure{padding:40px 28px 28px;display:flex;justify-content:center}
.access-figure img{border-radius:var(--radius);width:100%;max-width:920px;height:auto;object-fit:cover;box-shadow:var(--shadow-md)}
/* FAQ */
.faq-section{padding:0 0 var(--spacer);background:var(--bg)}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}
.faq-left .section-head{margin-bottom:0}
.faq-left p{font-size:15px;color:var(--muted);line-height:1.8}
.faq-list{display:flex;flex-direction:column;gap:10px}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:border-color .2s,box-shadow .2s}
.faq-item:hover{border-color:var(--primary);box-shadow:var(--shadow-md)}
.faq-item.active{border-color:rgba(217,154,38,.6);background:var(--accent-light)}
.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px;min-height:56px;text-align:left;background:none;border:none;font-size:15px;font-weight:600;color:var(--text);line-height:1.5;transition:color .2s}
.faq-question:hover{color:var(--primary)}
.faq-icon{flex:none;width:22px;height:22px;position:relative;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:50%;transition:background .2s,border-color .2s,transform .3s}
.faq-icon::before{content:"";position:absolute;width:10px;height:2px;background:var(--primary);border-radius:2px;transition:background .2s}
.faq-icon::after{content:"";position:absolute;width:2px;height:10px;background:var(--primary);border-radius:2px;transition:opacity .2s}
.faq-item.active .faq-icon{background:var(--accent);border-color:var(--accent);transform:rotate(180deg)}
.faq-item.active .faq-icon::before{background:#fff}
.faq-item.active .faq-icon::after{opacity:0}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-answer-inner{padding:0 20px 8px;font-size:14px;color:var(--muted);line-height:1.8}
.faq-item.active .faq-answer{max-height:300px}
/* CTA contact */
.cta-section{padding:0 0 var(--spacer);background:var(--bg)}
.cta-box{position:relative;background:var(--dark);border-radius:var(--radius);padding:56px 48px;color:#fff;overflow:hidden}
.cta-box::before{content:"";position:absolute;inset:0;background-image:linear-gradient(45deg,rgba(217,154,38,.12) 25%,transparent 25%,transparent 50%,rgba(217,154,38,.12) 50%,rgba(217,154,38,.12) 75%,transparent 75%,transparent);background-size:42px 42px;opacity:.5}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-copy h2{font-size:clamp(1.4rem,2.2vw,1.9rem);font-weight:700;margin-bottom:12px;color:#fff}
.cta-copy p{color:rgba(255,255,255,.75);font-size:15px;line-height:1.8;max-width:520px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-contact{display:flex;align-items:center;gap:14px;margin-top:18px;font-size:14px;color:rgba(255,255,255,.7)}
.cta-contact a{color:#fff;text-decoration:underline;text-underline-offset:4px}
/* footer */
.site-footer{background:var(--dark);color:rgba(255,255,255,.75);padding:68px 0 0}
.footer-grid{max-width:1200px;margin:0 auto;padding:0 24px 44px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo{color:#fff;margin-bottom:16px;display:inline-block}
.footer-brand .logo span{color:var(--accent)}
.footer-brand p{font-size:14px;line-height:1.75;color:rgba(255,255,255,.65);max-width:300px}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:rgba(255,255,255,.65);font-size:14px;transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-contact p{font-size:14px;line-height:1.7;color:rgba(255,255,255,.65)}
.footer-contact a{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0}
.footer-bottom .container{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.55)}
.footer-bottom a{color:rgba(255,255,255,.7);transition:color .2s}
.footer-bottom a:hover{color:#fff}
/* responsive */
@media(max-width:1280px){
.header-inner{padding:0 20px}
.footer-grid{padding-left:20px;padding-right:20px}
}
@media(max-width:1024px){
.guide-steps{grid-template-columns:repeat(2,1fr);gap:32px 24px}
.guide-step:nth-child(2)::after{display:none}
.faq-grid{grid-template-columns:1fr}
.faq-left{margin-bottom:8px}
.footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:900px){
.nav-toggle{display:flex}
.main-nav{position:fixed;top:var(--nav-h);left:0;right:0;background:var(--bg);border-bottom:1px solid var(--border);height:0;overflow:hidden;transition:height .35s ease}
.main-nav.open{height:auto}
.main-nav ul{flex-direction:column;align-items:stretch;gap:0;padding:12px 24px 20px}
.main-nav a{padding:14px 4px;border-bottom:1px solid var(--border);font-size:16px}
.main-nav a:last-child{border-bottom:none}
.site-header:not(.scrolled) .main-nav{background:var(--bg)}
.site-header:not(.scrolled) .main-nav a{color:var(--text)}
}
@media(max-width:767px){
:root{--spacer:48px}
.page-banner{min-height:60vh;padding:calc(var(--nav-h) + 40px) 0 48px}
.banner-actions{width:100%}
.banner-actions .btn{flex:1;min-width:130px}
.access-item{grid-template-columns:1fr;gap:10px;padding:20px}
.item-date{font-size:13px;padding-top:0}
.item-date::before{content:none}
.guide-steps{grid-template-columns:1fr}
.guide-step::after{display:none}
.cta-box{padding:36px 24px}
.cta-inner{flex-direction:column;align-items:flex-start}
.footer-grid{grid-template-columns:1fr;gap:28px}
.footer-bottom .container{flex-direction:column;text-align:center}
.header-right .btn-sm{display:none}
.header-right{gap:8px}
}
@media(max-width:520px){
.container{padding:0 16px}
.header-inner{padding:0 16px}
.banner-actions{flex-direction:column}
.banner-actions .btn{width:100%}
.page-banner h1{font-size:clamp(1.9rem,7vw,2.4rem)}
.faq-question{font-size:14px}
.cta-actions{width:100%}
.cta-actions .btn{width:100%}
}

/* roulang page: category2 */
:root {
  --primary: #146B5F;
  --primary-dark: #0E4F46;
  --accent: #D99A26;
  --accent-light: #E8B54C;
  --dark-bg: #0D2B26;
  --light-bg: #F6F3ED;
  --card-bg: #FFFFFF;
  --border: #E6E0D6;
  --text-main: #1F2925;
  --text-weak: #6B736F;
  --success: #2E8B57;
  --error: #C0392B;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .04);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, .08);
  --shadow-accent: 0 6px 16px rgba(20, 107, 95, .3);
  --container-w: 1200px;
  --font-primary: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", "Noto Sans SC", sans-serif;
  --font-num: "DIN Alternate", "Roboto Mono", monospace;
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--light-bg);
  font-family: var(--font-primary);
  color: var(--text-main);
  font-size: 1rem;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--primary-dark); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }

.container { max-width: var(--container-w); margin: 0 auto; padding: 0 24px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 24px;
  border-radius: var(--radius-sm);
  font-size: .9375rem;
  font-weight: 600;
  border: 1px solid transparent;
  transition: all .2s ease;
  white-space: nowrap;
  line-height: 1;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-accent); }
.btn-primary:active { transform: translateY(0); box-shadow: none; }
.btn-outline { background: transparent; border-color: var(--primary); color: var(--primary); }
.btn-outline:hover { background: rgba(20, 107, 95, .1); color: var(--primary-dark); }
.btn-accent { background: var(--accent); color: #2A2110; }
.btn-accent:hover { background: var(--accent-light); color: #1E180A; transform: translateY(-1px); box-shadow: 0 8px 20px rgba(217, 154, 38, .35); }
.btn-sm { height: 38px; padding: 0 18px; font-size: .875rem; }

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: 64px;
  transition: background .3s, box-shadow .3s, backdrop-filter .3s;
}
.site-header.scrolled {
  background: rgba(246, 243, 237, .92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, .06);
}
.header-inner {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.header-left { display: flex; align-items: center; gap: 40px; }
.logo { font-size: 1.25rem; font-weight: 700; color: var(--primary); display: inline-flex; align-items: baseline; gap: 2px; letter-spacing: .02em; }
.logo span { color: var(--accent); }
.main-nav ul { display: flex; gap: 28px; }
.main-nav a {
  font-size: .9375rem;
  color: rgba(255, 255, 255, .92);
  font-weight: 500;
  padding: 6px 2px;
  position: relative;
  transition: color .2s;
}
.site-header.scrolled .main-nav a { color: var(--text-main); }
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s;
}
.main-nav a:hover::after, .main-nav a.active::after { transform: scaleX(1); }
.main-nav a.active { color: var(--primary); font-weight: 600; }
.site-header.scrolled .main-nav a.active { color: var(--primary); }
.header-right { display: flex; align-items: center; gap: 16px; }
.search-btn {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: transparent;
  border: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, .92);
  transition: background .2s, color .2s;
}
.site-header.scrolled .search-btn { color: var(--text-main); }
.search-btn:hover { background: rgba(20, 107, 95, .1); color: var(--primary); }
.search-btn svg { width: 18px; height: 18px; }
.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  background: transparent;
  border: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: all .3s;
}
.nav-toggle.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.page-hero {
  position: relative;
  padding: 180px 0 100px;
  background:
    linear-gradient(135deg, rgba(13, 43, 38, .92) 0%, rgba(13, 43, 38, .78) 45%, rgba(13, 43, 38, .55) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color: #fff;
  overflow: hidden;
}
.page-hero::after {
  content: "";
  position: absolute;
  right: -60px; top: 50%;
  width: 300px; height: 300px;
  background: repeating-linear-gradient(45deg, rgba(217, 154, 38, .2) 0 2px, transparent 2px 14px);
  opacity: .5;
  border-radius: 50%;
  pointer-events: none;
}
.breadcrumb {
  display: flex;
  gap: 8px;
  font-size: .8125rem;
  color: rgba(255, 255, 255, .7);
  margin-bottom: 24px;
  align-items: center;
}
.breadcrumb a { color: rgba(255, 255, 255, .8); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { color: rgba(255, 255, 255, .4); }
.page-hero h1 {
  font-size: clamp(2rem, 4.2vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 16px;
}
.page-hero h1 .hl { color: var(--accent); }
.page-hero .hero-sub {
  max-width: 640px;
  font-size: 1.0625rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, .88);
  margin-bottom: 0;
}

.section { padding: 80px 0; }
.section-head { margin-bottom: 40px; max-width: 680px; }
.section-head .tag {
  display: inline-block;
  background: rgba(20, 107, 95, .1);
  color: var(--primary);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .08em;
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 12px;
}
.section-head h2 { font-size: clamp(1.5rem, 2.6vw, 2rem); font-weight: 700; line-height: 1.25; margin-bottom: 12px; }
.section-head p { color: var(--text-weak); font-size: .9375rem; }

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.step-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.step-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--primary); }
.step-num {
  font-family: var(--font-num);
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  display: block;
  margin-bottom: 16px;
  opacity: .85;
}
.step-card h3 { font-size: 1.0625rem; font-weight: 600; margin-bottom: 8px; }
.step-card p { font-size: .875rem; color: var(--text-weak); line-height: 1.7; margin: 0; }

.faq-wrapper { padding: 80px 0; background: var(--card-bg); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 48px;
  align-items: start;
}
.faq-list { display: flex; flex-direction: column; gap: 10px; }
.faq-item {
  background: var(--light-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .3s, background .3s;
}
.faq-item.active { border-color: var(--accent); background: rgba(217, 154, 38, .04); }
.faq-question {
  width: 100%;
  min-height: 54px;
  padding: 0 20px;
  background: transparent;
  border: none;
  text-align: left;
  font-size: .9375rem;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: color .2s;
}
.faq-question:hover { color: var(--primary); }
.faq-icon {
  width: 22px; height: 22px;
  flex-shrink: 0;
  position: relative;
  display: inline-block;
}
.faq-icon::before, .faq-icon::after {
  content: "";
  position: absolute;
  background: var(--primary);
  border-radius: 2px;
  transition: all .3s;
}
.faq-icon::before { width: 12px; height: 2px; top: 10px; left: 5px; }
.faq-icon::after { width: 2px; height: 12px; top: 5px; left: 10px; }
.faq-item.active .faq-icon::after { transform: scaleY(0); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease, padding .3s ease;
  padding: 0 20px;
}
.faq-item.active .faq-answer {
  max-height: 400px;
  padding: 0 20px 20px;
}
.faq-answer p { font-size: .875rem; line-height: 1.8; color: #3D4742; margin: 0; }

.related-box {
  background: var(--light-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  position: sticky;
  top: 96px;
}
.related-box h3 { font-size: 1.0625rem; font-weight: 700; margin-bottom: 18px; padding-bottom: 14px; border-bottom: 1px solid var(--border); }
.related-list li { margin-bottom: 14px; }
.related-list a {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: .875rem;
  color: var(--text-main);
  line-height: 1.5;
  transition: color .2s;
}
.related-list a .arrow { color: var(--accent); font-family: var(--font-num); transition: transform .2s; }
.related-list a:hover { color: var(--primary); }
.related-list a:hover .arrow { transform: translateX(4px); }
.related-cover {
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 20px;
  position: relative;
  box-shadow: var(--shadow-sm);
}
.related-cover img { width: 100%; height: 160px; object-fit: cover; }
.related-cover .cover-label {
  position: absolute;
  left: 0; bottom: 0;
  width: 100%;
  padding: 32px 16px 12px;
  background: linear-gradient(transparent, rgba(13, 43, 38, .85));
  color: #fff;
  font-size: .8125rem;
  font-weight: 600;
}

.cta-band {
  background: var(--dark-bg);
  position: relative;
  padding: 80px 0;
  overflow: hidden;
  color: #fff;
}
.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(45deg, rgba(217, 154, 38, .08) 0 1px, transparent 1px 18px);
  pointer-events: none;
}
.cta-inner { position: relative; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.cta-inner h2 { font-size: clamp(1.5rem, 2.6vw, 2rem); font-weight: 700; margin-bottom: 10px; }
.cta-inner p { color: rgba(255, 255, 255, .72); font-size: .9375rem; max-width: 520px; margin: 0; }
.cta-btns { display: flex; gap: 16px; flex-shrink: 0; }

.site-footer {
  background: #0D2B26;
  color: rgba(255, 255, 255, .7);
  padding: 64px 0 0;
}
.footer-grid {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 48px;
}
.footer-brand .logo { color: #fff; font-size: 1.375rem; }
.footer-brand .logo span { color: var(--accent); }
.footer-brand p { margin-top: 16px; font-size: .875rem; line-height: 1.8; color: rgba(255, 255, 255, .6); max-width: 300px; }
.footer-col h4 { color: #fff; font-size: .9375rem; font-weight: 600; margin-bottom: 18px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col a { color: rgba(255, 255, 255, .62); font-size: .875rem; transition: color .2s; }
.footer-col a:hover { color: #fff; }
.footer-contact p { font-size: .875rem; line-height: 1.8; color: rgba(255, 255, 255, .62); margin-bottom: 8px; }
.footer-contact a { color: rgba(255, 255, 255, .8); }
.footer-bottom {
  margin-top: 56px;
  border-top: 1px solid rgba(255, 255, 255, .12);
  padding: 20px 0;
}
.footer-bottom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.footer-bottom p { font-size: .8125rem; color: rgba(255, 255, 255, .4); margin: 0; }
.footer-bottom a { color: rgba(255, 255, 255, .4); }
.footer-bottom a:hover { color: var(--accent); }

.mobile-menu {
  position: fixed;
  top: 64px; left: 0; right: 0;
  background: var(--light-bg);
  border-bottom: 1px solid var(--border);
  padding: 20px 24px 28px;
  display: none;
  z-index: 999;
  box-shadow: 0 16px 32px rgba(0, 0, 0, .08);
}
.mobile-menu.open { display: block; }
.mobile-menu ul { display: flex; flex-direction: column; gap: 4px; }
.mobile-menu a {
  display: block;
  padding: 14px 12px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-main);
  border-radius: var(--radius-sm);
  transition: background .2s, color .2s;
}
.mobile-menu a:hover, .mobile-menu a.active { background: rgba(20, 107, 95, .08); color: var(--primary); }

@media (max-width: 1024px) {
  .header-inner { padding: 0 20px; }
  .main-nav a { font-size: .875rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .faq-layout { grid-template-columns: 1fr; }
  .related-box { position: static; }
}

@media (max-width: 900px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .header-right .search-btn { display: none; }
  .header-right .btn-primary { display: inline-flex; }
  .page-hero { padding: 140px 0 72px; }
  .section { padding: 56px 0; }
  .faq-wrapper { padding: 56px 0; }
  .steps-grid { grid-template-columns: 1fr; gap: 16px; }
  .cta-band { padding: 56px 0; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .cta-btns { width: 100%; }
  .cta-btns .btn { flex: 1; }
}

@media (max-width: 768px) {
  .header-inner { padding: 0 16px; }
  .header-right .btn-primary { display: none; }
  .container { padding: 0 16px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom .container { flex-direction: column; text-align: center; }
}

@media (max-width: 520px) {
  .page-hero { padding: 130px 0 60px; }
  .page-hero h1 { font-size: 1.875rem; }
  .btn-lg { width: 100%; }
  .btn { width: 100%; }
  .cta-btns { flex-direction: column; }
  .footer-grid { padding: 0 16px; }
}

:focus-visible {
  outline: 3px solid rgba(20, 107, 95, .35);
  outline-offset: 2px;
}
.btn:focus-visible, .search-btn:focus-visible, .nav-toggle:focus-visible, .faq-question:focus-visible {
  outline: 3px solid rgba(217, 154, 38, .6);
  outline-offset: 2px;
}

/* roulang page: category3 */
:root {
  --primary: #146B5F;
  --primary-dark: #0E4F46;
  --accent: #D99A26;
  --dark: #0D2B26;
  --light: #F6F3ED;
  --card: #FFFFFF;
  --border: #E6E0D6;
  --text: #1F2925;
  --muted: #6B736F;
  --success: #2E8B57;
  --danger: #C0392B;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 8px 24px rgba(0,0,0,.08);
  --shadow-primary: 0 6px 16px rgba(20,107,95,.3);
  --font-main: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", "Noto Sans SC", sans-serif;
  --font-num: "DIN Alternate", "Roboto Mono", monospace;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text);
  background: var(--light);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--primary-dark); }
button { font-family: inherit; cursor: pointer; }
ul { list-style: none; }

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 24px;
  border-radius: var(--radius-sm);
  font-size: .9375rem;
  font-weight: 600;
  border: none;
  transition: all .2s;
  text-decoration: none;
  white-space: nowrap;
}
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-primary);
}

.btn-sm { height: 38px; padding: 0 18px; font-size: .875rem; }

.btn-ghost {
  background: transparent;
  border: 1px solid var(--primary);
  color: var(--primary);
}
.btn-ghost:hover {
  background: rgba(20,107,95,.1);
  color: var(--primary-dark);
}

.btn-accent {
  background: var(--accent);
  color: var(--dark);
}
.btn-accent:hover {
  background: #EAAA33;
  color: var(--dark);
}

.btn-ghost-light {
  background: transparent;
  border: 1px solid rgba(255,255,255,.65);
  color: #fff;
}
.btn-ghost-light:hover {
  background: rgba(255,255,255,.12);
  color: #fff;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background .3s, box-shadow .3s, border-color .3s;
}
.site-header.scrolled {
  background: rgba(246,243,237,.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom-color: var(--border);
  box-shadow: 0 2px 12px rgba(0,0,0,.04);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.header-left {
  display: flex;
  align-items: center;
  gap: 32px;
}
.logo {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text);
  display: inline-flex;
  align-items: baseline;
  white-space: nowrap;
}
.logo span {
  color: var(--primary);
  font-size: 1.25rem;
}
.main-nav ul {
  display: flex;
  align-items: center;
  gap: 28px;
}
.main-nav a {
  font-size: .875rem;
  font-weight: 500;
  color: var(--text);
  padding: 6px 2px;
  position: relative;
  transition: color .2s;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: width .2s;
}
.main-nav a:hover { color: var(--primary); }
.main-nav a.active { color: var(--primary); font-weight: 600; }
.main-nav a.active::after { width: 100%; }
.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}
.search-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  transition: background .2s, color .2s;
}
.search-btn:hover {
  background: rgba(20,107,95,.08);
  color: var(--primary);
}
.search-btn svg {
  width: 18px;
  height: 18px;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  padding: 10px 8px;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text);
  border-radius: 2px;
  transition: all .3s;
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.page-hero {
  position: relative;
  background:
    linear-gradient(135deg, rgba(13,43,38,.90) 0%, rgba(13,43,38,.75) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding: 140px 0 80px;
  text-align: center;
  color: #fff;
}
.page-hero h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 16px;
  color: #fff;
}
.page-hero-sub {
  font-size: 1.0625rem;
  color: rgba(255,255,255,.85);
  max-width: 560px;
  margin: 0 auto;
}

.intro-block {
  padding: 80px 0 40px;
}
.intro-grid {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 48px;
  align-items: center;
}
.section-tag {
  display: inline-block;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--primary);
  background: rgba(20,107,95,.08);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.intro-text h2 {
  font-size: clamp(1.5rem, 2.4vw, 2rem);
  line-height: 1.3;
  margin-bottom: 16px;
  color: var(--text);
}
.intro-text p {
  color: var(--muted);
  max-width: 520px;
}
.intro-media img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
}

.directory-section {
  padding: 40px 0 80px;
}
.topic-block {
  max-width: 880px;
  margin: 0 auto 72px;
}
.topic-block:last-child {
  margin-bottom: 0;
}
.topic-block h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 8px;
}
.topic-block h2::before {
  content: "";
  width: 4px;
  height: 22px;
  background: var(--accent);
  border-radius: 2px;
  flex-shrink: 0;
}
.topic-desc {
  color: var(--muted);
  font-size: .875rem;
  margin-bottom: 24px;
}
.entry-item {
  display: flex;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  transition: background .2s;
}
.entry-item:hover {
  background: rgba(20,107,95,.03);
}
.entry-num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--accent);
  min-width: 52px;
  line-height: 1.5;
}
.entry-content h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}
.entry-content p {
  font-size: .875rem;
  color: var(--muted);
  line-height: 1.7;
  margin: 0;
}
.topic-media {
  margin-top: 32px;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.topic-media img {
  width: 100%;
  max-height: 360px;
  object-fit: cover;
}
.topic-media figcaption {
  padding: 12px 20px;
  background: var(--card);
  font-size: .8125rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
}

.related-links {
  padding: 64px 0;
  background: var(--card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.related-links h2 {
  text-align: center;
  font-size: clamp(1.5rem, 2.4vw, 2rem);
  margin-bottom: 32px;
}
.related-grid {
  max-width: 880px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.related-card {
  display: block;
  background: var(--light);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: all .2s;
}
.related-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.related-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 8px;
}
.related-card p {
  font-size: .875rem;
  color: var(--muted);
  margin: 0;
}

.cta-block {
  background: var(--dark);
  padding: 72px 0;
  text-align: center;
}
.cta-block h2 {
  font-size: clamp(1.5rem, 2.6vw, 2.25rem);
  color: #fff;
  margin-bottom: 12px;
}
.cta-block p {
  color: rgba(255,255,255,.78);
  max-width: 520px;
  margin: 0 auto 24px;
  font-size: .9375rem;
}
.cta-block .btn {
  min-width: 160px;
}

.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,.75);
  padding: 64px 0 0;
}
.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 48px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
}
.footer-brand .logo {
  color: #fff;
  font-size: 1.25rem;
  margin-bottom: 16px;
}
.footer-brand .logo span {
  color: var(--accent);
}
.footer-brand p {
  font-size: .875rem;
  color: rgba(255,255,255,.6);
  max-width: 280px;
  line-height: 1.7;
}
.footer-col h4 {
  color: #fff;
  font-size: .9375rem;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul a {
  color: rgba(255,255,255,.6);
  font-size: .875rem;
  transition: color .2s;
}
.footer-col ul a:hover {
  color: #fff;
}
.footer-contact p {
  font-size: .875rem;
  color: rgba(255,255,255,.6);
  line-height: 1.7;
  margin-bottom: 8px;
}
.footer-contact a {
  color: rgba(255,255,255,.75);
}
.footer-contact a:hover {
  color: #fff;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding: 24px 0;
}
.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-bottom p {
  font-size: .8125rem;
  color: rgba(255,255,255,.45);
}
.footer-bottom a {
  color: rgba(255,255,255,.45);
}
.footer-bottom a:hover {
  color: #fff;
}

@media (max-width: 900px) {
  .main-nav {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--light);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    box-shadow: 0 8px 24px rgba(0,0,0,.06);
  }
  .main-nav.open {
    display: block;
  }
  .main-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
  .main-nav a {
    display: block;
    padding: 10px 0;
    font-size: 1rem;
  }
  .main-nav a::after {
    display: none;
  }
  .main-nav a.active {
    border-left: 3px solid var(--primary);
    padding-left: 8px;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .header-left {
    gap: 12px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 767px) {
  .container,
  .header-inner {
    padding: 0 16px;
  }
  .header-inner {
    height: 54px;
  }
  .logo {
    font-size: 1rem;
  }
  .logo span {
    font-size: 1.125rem;
  }
  .page-hero {
    padding: 110px 0 56px;
  }
  .intro-block {
    padding: 48px 0 24px;
  }
  .intro-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .directory-section {
    padding: 24px 0 48px;
  }
  .topic-block {
    margin-bottom: 48px;
  }
  .entry-item {
    gap: 14px;
  }
  .entry-num {
    min-width: 36px;
    font-size: 1rem;
  }
  .topic-block h2 {
    font-size: 1.25rem;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom .container {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
  .btn {
    height: 44px;
  }
}