/* roulang page: index */
:root {
  --primary: #0e9f8a;
  --primary-light: #d3f0ea;
  --primary-dark: #0a7d6d;
  --accent: #ff6a3d;
  --accent-hover: #e5552c;
  --bg: #faf8f5;
  --white: #ffffff;
  --dark: #1b2a2a;
  --text: #344747;
  --muted: #748585;
  --border: #e8e2dc;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 10px;
  --shadow-xs: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.10);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.14);
  --transition: 0.2s ease;
  --container-w: 1200px;
}
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover,
a:focus {
  color: var(--primary-dark);
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
  border: none;
  outline: none;
  background: none;
}
ul,
ol {
  list-style: none;
}
.container {
  max-width: var(--container-w);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}
.section {
  padding: 80px 0;
}
.section-title {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--dark);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.section-title::after {
  content: "";
  display: block;
  width: 48px;
  height: 4px;
  border-radius: 2px;
  background: var(--accent);
  margin-top: 14px;
}
.section-desc {
  font-size: 16px;
  color: var(--muted);
  max-width: 620px;
  margin-bottom: 36px;
  line-height: 1.7;
}
.section-header {
  margin-bottom: 40px;
}

/* ===== 导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.72);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.5);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
  transition: background 0.25s ease, box-shadow 0.25s ease;
}
.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 6px 30px rgba(0, 0, 0, 0.10);
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--dark);
  white-space: nowrap;
}
.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 17px;
  box-shadow: 0 4px 10px rgba(14, 159, 138, 0.25);
}
.logo-sub {
  font-weight: 500;
  color: var(--muted);
  font-size: 14px;
  margin-left: 2px;
}
.nav-center .nav-list {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-link {
  display: inline-block;
  padding: 9px 18px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  transition: background var(--transition), color var(--transition);
}
.nav-link:hover,
.nav-link:focus {
  background: var(--primary-light);
  color: var(--primary-dark);
}
.nav-link.is-active {
  background: rgba(14, 159, 138, 0.12);
  color: var(--primary-dark);
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-search-btn {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 15px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}
.nav-search-btn:hover {
  background: var(--bg);
  color: var(--primary);
}
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--dark);
  cursor: pointer;
  transition: background var(--transition);
}
.nav-toggle:hover {
  background: var(--bg);
}
.nav-search-dropdown {
  position: absolute;
  top: 68px;
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  width: min(560px, calc(100% - 32px));
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  border: 1px solid var(--border);
}
.nav-search-dropdown.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.search-form {
  display: flex;
  align-items: center;
  gap: 8px;
}
.search-form input {
  flex: 1;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0 16px;
  font-size: 14px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.search-form input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(14, 159, 138, 0.14);
}
.search-form button {
  height: 44px;
  padding: 0 20px;
  border-radius: var(--radius-sm);
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition);
}
.search-form button:hover {
  background: var(--primary-dark);
}
.mobile-menu {
  display: none;
  background: var(--white);
  border-top: 1px solid var(--border);
  padding: 12px 24px 20px;
  box-shadow: var(--shadow-sm);
}
.mobile-menu.is-open {
  display: block;
}
.mobile-menu ul {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.mobile-menu a {
  display: block;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  transition: background var(--transition), color var(--transition);
}
.mobile-menu a:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 46px;
  padding: 0 24px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition), border-color var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
}
.btn-sm {
  height: 38px;
  padding: 0 18px;
  font-size: 14px;
}
.btn-large {
  height: 52px;
  padding: 0 36px;
  font-size: 16px;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 14px rgba(255, 106, 61, 0.28);
}
.btn-primary:hover,
.btn-primary:focus {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 106, 61, 0.32);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(255, 106, 61, 0.20);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover,
.btn-outline:focus {
  background: var(--primary-light);
  color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.btn-outline:active {
  transform: translateY(0);
}
.btn-secondary {
  background: rgba(14, 159, 138, 0.10);
  color: var(--primary-dark);
  border-color: rgba(14, 159, 138, 0.30);
}
.btn-secondary:hover,
.btn-secondary:focus {
  background: rgba(14, 159, 138, 0.18);
  color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.btn:focus-visible {
  outline: 3px solid rgba(14, 159, 138, 0.35);
  outline-offset: 2px;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 72vh;
  display: flex;
  align-items: center;
  background-image: linear-gradient(120deg, rgba(255, 255, 255, 0.92) 30%, rgba(255, 255, 255, 0.55) 70%), url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: 140px 0 80px;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 100px;
  background: linear-gradient(to bottom, transparent, var(--bg));
  pointer-events: none;
}
.hero-content {
  max-width: 680px;
  position: relative;
  z-index: 2;
}
.hero h1 {
  font-size: 44px;
  font-weight: 800;
  line-height: 1.22;
  color: var(--dark);
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.hero h1 .brand {
  color: var(--primary);
  position: relative;
}
.hero-sub {
  font-size: 18px;
  line-height: 1.65;
  color: var(--text);
  margin-bottom: 30px;
  max-width: 560px;
}
.hero-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}
.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
}
.hero-trust span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--muted);
  font-weight: 500;
}
.hero-trust i {
  color: var(--primary);
  font-size: 15px;
}

/* ===== 权益对比表 ===== */
.pricing-section {
  background: var(--white);
}
.price-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px 28px;
  height: 100%;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.price-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: rgba(14, 159, 138, 0.25);
}
.price-card--featured {
  border: 2px solid var(--primary);
  background: linear-gradient(180deg, rgba(14, 159, 138, 0.05), var(--white) 60%);
  box-shadow: var(--shadow-md);
  transform: scale(1.02);
}
.price-card--featured:hover {
  transform: scale(1.02) translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.price-card__badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  padding: 4px 18px;
  border-radius: 999px;
  letter-spacing: 0.06em;
  box-shadow: 0 4px 12px rgba(255, 106, 61, 0.30);
}
.price-card__header {
  text-align: center;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 18px;
}
.price-card__header h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 6px;
}
.price-card__header .price {
  font-size: 40px;
  font-weight: 800;
  color: var(--dark);
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.price-card__header .price span {
  font-size: 15px;
  font-weight: 500;
  color: var(--muted);
}
.price-card__features {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}
.price-card__features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  color: var(--text);
}
.price-card__features i {
  width: 20px;
  text-align: center;
  font-size: 13px;
  flex-shrink: 0;
}
.price-card__features .fa-check {
  color: var(--primary);
}
.price-card__features .fa-times {
  color: #b6c0bd;
}
.price-card .btn {
  width: 100%;
}

/* ===== 等级亮点 ===== */
.features-section {
  background: var(--bg);
  overflow: hidden;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px 28px;
  padding-right: 32px;
}
.feature-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 30px;
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
  position: relative;
}
.feature-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: rgba(14, 159, 138, 0.20);
}
.feature-card:nth-child(3),
.feature-card:nth-child(4) {
  transform: translateX(32px);
}
.feature-card:nth-child(3):hover,
.feature-card:nth-child(4):hover {
  transform: translateX(32px) translateY(-3px);
}
.feature-card__icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 21px;
  color: var(--primary-dark);
  margin-bottom: 18px;
  transition: background var(--transition), transform var(--transition);
}
.feature-card:hover .feature-card__icon {
  background: rgba(14, 159, 138, 0.18);
  transform: scale(1.06);
}
.feature-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}
.feature-card p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
}

/* ===== 专属内容预览 ===== */
.preview-section {
  background: var(--white);
}
.preview-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 24px;
  align-items: stretch;
}
.preview-card {
  display: flex;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
  position: relative;
}
.preview-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: rgba(14, 159, 138, 0.20);
}
.preview-card--main {
  flex-direction: column;
}
.preview-card--main .preview-card__img {
  height: 260px;
  overflow: hidden;
}
.preview-card--main .preview-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.preview-card--main:hover .preview-card__img img {
  transform: scale(1.04);
}
.preview-card--side {
  align-items: center;
  gap: 0;
}
.preview-card--side .preview-card__img {
  width: 140px;
  height: 110px;
  flex-shrink: 0;
  overflow: hidden;
}
.preview-card--side .preview-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.preview-card--side:hover .preview-card__img img {
  transform: scale(1.05);
}
.preview-card__body {
  padding: 22px;
  flex: 1;
}
.preview-card--side .preview-card__body {
  padding: 16px 18px;
}
.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: var(--primary-light);
  color: var(--primary-dark);
  margin-bottom: 10px;
}
.preview-card__body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 6px;
  line-height: 1.4;
}
.preview-card--side .preview-card__body h3 {
  font-size: 16px;
}
.preview-card__body p {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 10px;
}
.preview-card__meta {
  font-size: 13px;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.preview-side {
  display: flex;
  flex-direction: column;
  gap: 24px;
  height: 100%;
}

/* ===== 最新资讯列表 ===== */
.news-section {
  background: var(--bg);
}
.news-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.news-item {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
}
.news-item:hover {
  box-shadow: var(--shadow-sm);
  border-color: rgba(14, 159, 138, 0.20);
  transform: translateX(2px);
}
.news-item__meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 140px;
  flex-shrink: 0;
}
.news-item__meta time {
  font-size: 13px;
  color: var(--muted);
}
.news-item__content {
  flex: 1;
  min-width: 0;
}
.news-item__content h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 4px;
  line-height: 1.4;
}
.news-item__content h3 a {
  color: var(--dark);
  transition: color var(--transition);
}
.news-item__content h3 a:hover {
  color: var(--primary);
}
.news-item__content p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-item__more {
  flex-shrink: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  white-space: nowrap;
}
.news-item__more:hover {
  color: var(--primary-dark);
}
.news-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--white);
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 24px;
  text-align: center;
}
.news-empty__icon {
  font-size: 34px;
  color: #c9d2cf;
  margin-bottom: 12px;
}
.news-empty p {
  font-size: 15px;
  color: var(--muted);
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--white);
}
.faq-accordion .accordion-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: box-shadow var(--transition), border-color var(--transition);
}
.faq-accordion .accordion-item.is-active {
  box-shadow: var(--shadow-sm);
  border-color: rgba(14, 159, 138, 0.25);
}
.faq-accordion .accordion-title {
  background: transparent;
  border-bottom: 1px solid transparent;
  padding: 18px 52px 18px 24px;
  font-size: 16px;
  font-weight: 700;
  color: var(--dark);
  position: relative;
  display: block;
  transition: background var(--transition), color var(--transition);
}
.faq-accordion .accordion-title:hover,
.faq-accordion .accordion-title:focus {
  background: rgba(14, 159, 138, 0.04);
  color: var(--primary-dark);
}
.faq-accordion .accordion-title::after {
  content: '\f078';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  position: absolute;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 13px;
  color: var(--primary);
  transition: transform 0.25s ease;
}
.faq-accordion .accordion-item.is-active > .accordion-title::after {
  transform: translateY(-50%) rotate(180deg);
}
.faq-accordion .accordion-content {
  background: transparent;
  border-top: 1px solid var(--border);
  padding: 16px 24px 20px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
}
.faq-accordion .accordion-content p {
  margin-bottom: 8px;
}
.faq-accordion .accordion-content p:last-child {
  margin-bottom: 0;
}

/* ===== CTA ===== */
.cta-section {
  background: var(--bg);
}
.cta-box {
  position: relative;
  background-image: linear-gradient(120deg, rgba(27, 42, 42, 0.92), rgba(14, 159, 138, 0.88)), url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  border-radius: var(--radius-lg);
  padding: 60px 48px;
  text-align: center;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  color: #fff;
}
.cta-box h2 {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}
.cta-box p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.88);
  max-width: 520px;
  margin: 0 auto 24px;
  line-height: 1.6;
}
.cta-box__icons {
  display: flex;
  justify-content: center;
  gap: 18px 32px;
  margin-bottom: 30px;
  flex-wrap: wrap;
}
.cta-box__icons span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.92);
}
.cta-box__icons i {
  font-size: 16px;
}
.cta-box .btn-primary {
  font-size: 16px;
  padding: 0 40px;
  height: 52px;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.75);
  padding: 64px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 40px;
  margin-bottom: 44px;
}
.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 19px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
}
.footer-logo .logo-icon {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.62);
  max-width: 300px;
}
.footer-links h4,
.footer-contact h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.68);
  transition: color var(--transition), padding-left var(--transition);
}
.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}
.footer-contact p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.62);
  line-height: 1.65;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}
.footer-bottom a {
  color: rgba(255, 255, 255, 0.55);
}
.footer-bottom a:hover {
  color: #fff;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .section {
    padding: 64px 0;
  }
  .section-title {
    font-size: 26px;
  }
  .hero h1 {
    font-size: 36px;
  }
  .hero-sub {
    font-size: 16px;
  }
  .preview-grid {
    grid-template-columns: 1fr 1fr;
  }
  .preview-card--main .preview-card__img {
    height: 200px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  .nav-center {
    display: none;
  }
  .nav-right .btn-sm {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .nav-wrap {
    height: 60px;
  }
  .nav-search-dropdown {
    top: 60px;
  }
  .mobile-menu {
    display: block;
  }
  .hero {
    min-height: auto;
    padding: 110px 0 60px;
  }
  .hero h1 {
    font-size: 30px;
  }
  .hero-sub {
    font-size: 15px;
  }
  .hero-buttons .btn {
    width: 100%;
  }
  .hero-trust {
    flex-direction: column;
    gap: 10px;
  }
  .section {
    padding: 52px 0;
  }
  .section-title {
    font-size: 24px;
  }
  .features-grid {
    grid-template-columns: 1fr;
    padding-right: 0;
  }
  .feature-card:nth-child(3),
  .feature-card:nth-child(4) {
    transform: none;
  }
  .feature-card:nth-child(3):hover,
  .feature-card:nth-child(4):hover {
    transform: translateY(-3px);
  }
  .preview-grid {
    grid-template-columns: 1fr;
  }
  .preview-side {
    flex-direction: column;
  }
  .preview-card--side .preview-card__img {
    width: 120px;
    height: 100px;
  }
  .news-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 18px;
  }
  .news-item__meta {
    min-width: 0;
    flex-direction: row;
    align-items: center;
    gap: 10px;
  }
  .news-item__content p {
    white-space: normal;
  }
  .news-item__more {
    align-self: flex-end;
  }
  .cta-box {
    padding: 40px 24px;
  }
  .cta-box h2 {
    font-size: 22px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}
@media (max-width: 480px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .logo {
    font-size: 17px;
  }
  .logo-sub {
    display: none;
  }
  .hero h1 {
    font-size: 26px;
  }
  .section-title {
    font-size: 22px;
  }
  .section-desc {
    font-size: 14px;
  }
  .price-card {
    padding: 24px 20px;
  }
  .price-card__header .price {
    font-size: 32px;
  }
  .feature-card {
    padding: 24px 20px;
  }
  .preview-card--side {
    flex-direction: column;
    align-items: flex-start;
  }
  .preview-card--side .preview-card__img {
    width: 100%;
    height: 140px;
  }
  .cta-box__icons {
    flex-direction: column;
    gap: 10px;
  }
}

/* roulang page: article */
:root {
  --primary: #0d7c7b;
  --primary-dark: #0a6463;
  --primary-light: #e6f2f1;
  --accent: #f2643c;
  --accent-dark: #d4552f;
  --accent-light: #fdeee8;
  --bg: #faf8f5;
  --bg-white: #ffffff;
  --bg-gray: #f4f1ec;
  --text: #3a4148;
  --text-light: #7a838d;
  --text-dark: #1d2228;
  --border: #e9e4de;
  --border-light: #f1ede8;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 8px rgba(29, 34, 40, 0.05);
  --shadow-md: 0 10px 28px rgba(29, 34, 40, 0.09);
  --shadow-lg: 0 20px 48px rgba(29, 34, 40, 0.13);
  --space-section: 88px;
  --space-section-sm: 56px;
  --transition: 0.2s ease;
  --container-max: 1200px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; border-radius: var(--radius-md); }
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-dark); }
ul, ol { list-style: none; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }
input, textarea, select { font-family: inherit; font-size: 1rem; }

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 46px;
  padding: 0 28px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: all var(--transition);
  border: 1px solid transparent;
}
.btn i { margin-right: 8px; }
.btn:focus { outline: none; box-shadow: 0 0 0 3px rgba(13, 124, 123, 0.25); }
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-primary:active { transform: translateY(0); }
.btn-accent {
  background: var(--accent);
  color: #fff;
}
.btn-accent:hover { background: var(--accent-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 12px 26px rgba(242, 100, 60, 0.3); }
.btn-accent:active { transform: translateY(0); }
.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover { background: var(--primary-light); color: var(--primary-dark); transform: translateY(-2px); }
.btn-outline:active { transform: translateY(0); }
.btn-sm { height: 38px; padding: 0 20px; font-size: 14px; }
.btn-lg { height: 52px; padding: 0 40px; font-size: 16px; }

.tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  background: var(--primary-light);
  color: var(--primary);
}
.tag-accent {
  background: var(--accent-light);
  color: var(--accent);
}
.tag-gray {
  background: var(--bg-gray);
  color: var(--text-light);
}

.section-label {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 12px;
  letter-spacing: 0.06em;
}
.section-title {
  font-size: 30px;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.3;
  margin-bottom: 16px;
}
.section-sub {
  font-size: 16px;
  color: var(--text-light);
  line-height: 1.7;
  max-width: 680px;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(233, 228, 222, 0.7);
  box-shadow: 0 4px 18px rgba(29, 34, 40, 0.04);
  transition: all 0.3s ease;
}
.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 6px 28px rgba(29, 34, 40, 0.08);
}
.inner-page .site-header {
  background: rgba(255, 255, 255, 0.92);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), #14a5a3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: #fff;
  box-shadow: 0 4px 14px rgba(13, 124, 123, 0.3);
}
.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-dark);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.logo-sub {
  font-weight: 500;
  font-size: 15px;
  color: var(--text-light);
}
.nav-center { flex: 1; display: flex; justify-content: center; }
.nav-list { display: flex; gap: 6px; }
.nav-link {
  display: inline-block;
  padding: 8px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  border-radius: 999px;
  transition: all var(--transition);
}
.nav-link:hover { color: var(--primary); background: var(--primary-light); }
.nav-link.is-active {
  color: var(--primary);
  background: var(--primary-light);
  font-weight: 600;
}
.header-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--text);
  background: var(--bg-white);
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.icon-btn:hover { color: var(--primary); border-color: var(--primary); background: var(--primary-light); }
.nav-toggle { display: none; }

.search-panel {
  display: none;
  padding: 12px 0 18px;
  border-top: 1px solid var(--border-light);
  background: rgba(255, 255, 255, 0.96);
}
.search-panel.is-open { display: block; }
.search-box {
  display: flex;
  gap: 10px;
}
.search-box input {
  flex: 1;
  height: 46px;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0 18px;
  font-size: 15px;
  background: var(--bg-white);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.search-box input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(13, 124, 123, 0.15);
  outline: none;
}

.mobile-menu {
  display: none;
  background: rgba(255, 255, 255, 0.98);
  border-top: 1px solid var(--border-light);
  padding: 12px 0 18px;
}
.mobile-menu.is-open { display: block; }
.mobile-nav-list li a {
  display: block;
  padding: 12px 24px;
  font-size: 16px;
  font-weight: 500;
  color: var(--text);
  border-radius: 8px;
  transition: all var(--transition);
}
.mobile-nav-list li a:hover,
.mobile-nav-list li a.is-active {
  color: var(--primary);
  background: var(--primary-light);
}

.breadcrumb-bar {
  padding-top: 104px;
  padding-bottom: 20px;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-light);
}
.breadcrumb a {
  color: var(--text-light);
  transition: color var(--transition);
}
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: #bbb; font-size: 12px; }
.breadcrumb .current {
  color: var(--text-light);
  max-width: 260px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.article-main-section {
  padding: 28px 0 0;
}
.article-wrap {
  max-width: 840px;
  margin: 0 auto;
}
.article-header {
  margin-bottom: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border);
}
.article-header h1 {
  font-size: 34px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 16px;
  letter-spacing: 0.01em;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: center;
  font-size: 14px;
  color: var(--text-light);
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.meta-item i { font-size: 13px; color: var(--primary); }

.article-content {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
}
.article-content > * + * { margin-top: 1.1em; }
.article-content p { margin-bottom: 1.2em; }
.article-content h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.4;
  margin-top: 1.6em;
  margin-bottom: 0.6em;
}
.article-content h3 {
  font-size: 19px;
  font-weight: 600;
  color: var(--text-dark);
  margin-top: 1.4em;
  margin-bottom: 0.5em;
}
.article-content h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-dark);
  margin-top: 1.2em;
  margin-bottom: 0.4em;
}
.article-content img {
  max-width: 100%;
  border-radius: 14px;
  margin: 1.6em 0;
  box-shadow: var(--shadow-sm);
}
.article-content ul,
.article-content ol {
  margin-left: 1.4em;
  margin-bottom: 1.2em;
}
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content li { margin-bottom: 0.45em; line-height: 1.75; }
.article-content blockquote {
  border-left: 4px solid var(--primary);
  background: var(--primary-light);
  padding: 16px 22px;
  border-radius: 0 12px 12px 0;
  margin: 1.4em 0;
  color: var(--text);
}
.article-content blockquote p { margin-bottom: 0; }
.article-content pre {
  background: var(--text-dark);
  color: #e6e1db;
  padding: 18px 22px;
  border-radius: 12px;
  overflow-x: auto;
  font-size: 14px;
  line-height: 1.7;
  margin: 1.4em 0;
}
.article-content code {
  background: var(--bg-gray);
  padding: 2px 8px;
  border-radius: 5px;
  font-size: 0.92em;
  color: var(--primary-dark);
  font-family: "SF Mono", Consolas, monospace;
}
.article-content pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}
.article-content a { color: var(--primary); font-weight: 500; }
.article-content a:hover { text-decoration: underline; }
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.4em 0;
  font-size: 15px;
}
.article-content table th,
.article-content table td {
  border: 1px solid var(--border);
  padding: 12px 14px;
  text-align: left;
}
.article-content table th {
  background: var(--bg-gray);
  font-weight: 600;
  color: var(--text-dark);
}

.article-empty {
  padding: 70px 20px;
  text-align: center;
  background: var(--bg-white);
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
}
.article-empty i {
  font-size: 48px;
  color: var(--border);
  margin-bottom: 16px;
  display: block;
}
.article-empty p {
  font-size: 18px;
  font-weight: 500;
  color: var(--text-light);
  margin-bottom: 20px;
}

.related-section {
  padding: var(--space-section-sm) 0;
}
.related-head {
  text-align: center;
  margin-bottom: 36px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.related-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.related-card a { display: block; height: 100%; color: inherit; }
.related-card a:hover { color: inherit; }
.related-img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
}
.related-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.related-card:hover .related-img img { transform: scale(1.05); }
.related-img .tag {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
}
.related-body {
  padding: 18px 20px 20px;
}
.related-body h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-dark);
  line-height: 1.45;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-body p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.link-more {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.link-more i { transition: transform var(--transition); }
.related-card:hover .link-more i { transform: translateX(4px); }

.cta-section {
  padding: 30px 0 var(--space-section);
}
.cta-panel {
  background: linear-gradient(135deg, var(--text-dark) 0%, #2b3238 100%);
  border-radius: var(--radius-lg);
  padding: 64px 48px;
  position: relative;
  overflow: hidden;
  text-align: center;
}
.cta-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity: 0.12;
}
.cta-panel > * { position: relative; z-index: 2; }
.cta-panel h2 {
  font-size: 30px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
  line-height: 1.3;
}
.cta-panel p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
  max-width: 560px;
  margin: 0 auto 32px;
  line-height: 1.7;
}
.cta-features {
  display: flex;
  justify-content: center;
  gap: 0;
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.cta-feature {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 22px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
}
.cta-feature i { color: var(--accent); font-size: 16px; }

.site-footer {
  background: var(--text-dark);
  color: rgba(255, 255, 255, 0.7);
  padding-top: 68px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 40px;
  padding-bottom: 44px;
}
.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.footer-brand .footer-logo .logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), #14a5a3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: #fff;
}
.footer-brand .footer-logo span:last-child {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.02em;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.6);
  max-width: 320px;
}
.footer-links h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 18px;
}
.footer-links ul li { margin-bottom: 10px; }
.footer-links ul li a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  transition: color var(--transition);
}
.footer-links ul li a:hover { color: var(--accent); }
.footer-contact p {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.6);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}
.footer-bottom a {
  color: rgba(255, 255, 255, 0.6);
  margin: 0 6px;
}
.footer-bottom a:hover { color: var(--accent); }

@media (max-width: 1023px) {
  .nav-center { display: none; }
  .nav-toggle { display: flex; }
  .header-actions .btn-sm { display: none; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 767px) {
  :root { --space-section: 64px; }
  .container { padding: 0 16px; }
  .section-title { font-size: 24px; }
  .cta-panel { padding: 44px 24px; }
  .cta-features { flex-direction: column; align-items: center; gap: 8px; }
  .breadcrumb-bar { padding-top: 92px; }
  .article-header h1 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 639px) {
  .logo-text { font-size: 18px; }
  .logo-sub { display: none; }
  .related-grid { grid-template-columns: 1fr; }
  .article-meta { gap: 12px; flex-wrap: wrap; }
  .article-content { font-size: 15px; }
  .article-header h1 { font-size: 24px; }
  .cta-panel h2 { font-size: 24px; }
  .cta-panel p { font-size: 15px; }
}

/* roulang page: category1 */
:root {
  --primary: #0e9f8e;
  --primary-dark: #0b7b6d;
  --primary-light: #e3f4f0;
  --accent: #ff6b4a;
  --accent-dark: #e8573a;
  --accent-light: #fff1ec;
  --bg: #f8f5f0;
  --ink: #1c2a27;
  --text: #2e3a38;
  --muted: #7a8582;
  --border: #e6e1d8;
  --white: #ffffff;
  --success: #2e9e6b;
  --danger: #d9534f;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 10px rgba(28, 42, 39, 0.05);
  --shadow-md: 0 8px 30px rgba(28, 42, 39, 0.08);
  --shadow-lg: 0 16px 50px rgba(28, 42, 39, 0.12);
  --transition: all 0.2s ease;
  --container: 1200px;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

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

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

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
  transition: var(--transition);
}

ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1, h2, h3, h4 {
  margin: 0;
  color: var(--ink);
  font-weight: 700;
  line-height: 1.3;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 22px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}
.btn:focus-visible {
  outline: 3px solid rgba(14, 159, 142, 0.35);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(255, 107, 74, 0.25);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
  transform: translateY(-2px);
}
.btn-outline-light {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.65);
}
.btn-outline-light:hover {
  background: rgba(255,255,255,0.12);
  color: var(--white);
  border-color: var(--white);
}
.btn-lg {
  height: 52px;
  padding: 0 32px;
  font-size: 16px;
}
.btn-sm {
  height: 38px;
  padding: 0 16px;
  font-size: 14px;
}

/* Header Navigation */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 1px 20px rgba(28, 42, 39, 0.04);
  transition: var(--transition);
}
.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.94);
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-md);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 20px;
}
.site-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  text-decoration: none;
}
.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--primary-light);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}
.logo-text {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.3px;
}
.nav-center .nav-list {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-link {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
}
.nav-link:hover {
  color: var(--primary);
  background: var(--primary-light);
}
.nav-link.is-active {
  color: var(--primary);
  font-weight: 600;
  background: var(--primary-light);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.search-toggle, .nav-toggle {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  font-size: 16px;
  background: transparent;
}
.search-toggle:hover, .nav-toggle:hover {
  background: var(--primary-light);
  color: var(--primary);
}
.nav-toggle {
  display: none;
}
.search-panel {
  display: none;
  padding: 14px 24px 20px;
  border-top: 1px solid rgba(255,255,255,0.3);
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(14px);
}
.search-panel.is-open {
  display: block;
}
.search-panel input {
  width: 100%;
  height: 44px;
  padding: 0 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  font-size: 15px;
  font-family: inherit;
  background: var(--white);
  color: var(--text);
}
.search-panel input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(14, 159, 142, 0.15);
}
.mobile-menu {
  display: none;
  border-top: 1px solid var(--border);
  background: var(--white);
  padding: 12px 24px 20px;
  box-shadow: var(--shadow-md);
}
.mobile-menu.is-open {
  display: block;
}
.mobile-menu ul li a {
  display: block;
  padding: 14px 8px;
  font-size: 16px;
  font-weight: 500;
  color: var(--text);
  border-bottom: 1px solid rgba(0,0,0,0.04);
  text-decoration: none;
}
.mobile-menu ul li:last-child a {
  border-bottom: none;
}
.mobile-menu ul li a:hover {
  color: var(--primary);
}
.mobile-menu ul li a.is-active {
  color: var(--primary);
  font-weight: 700;
}

/* Page Hero (category) */
.page-hero {
  position: relative;
  padding: 150px 0 80px;
  min-height: 430px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.page-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-size: cover;
  background-position: center;
}
.page-hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(248,245,240,0.97) 0%, rgba(248,245,240,0.85) 55%, rgba(248,245,240,0.55) 100%);
}
.hero-bottom-fade {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 100px;
  background: linear-gradient(to bottom, transparent, var(--bg));
  z-index: 1;
}
.page-hero .container {
  position: relative;
  z-index: 2;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 100px;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 18px;
}
.hero-badge i {
  font-size: 12px;
}
.page-hero h1 {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: 0.5px;
  color: var(--ink);
}
.hero-lead {
  margin: 18px 0 28px;
  font-size: 17px;
  line-height: 1.75;
  color: var(--text);
  max-width: 620px;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.breadcrumb {
  margin-top: 18px;
  font-size: 14px;
  color: var(--muted);
}
.breadcrumb a {
  color: var(--muted);
}
.breadcrumb a:hover {
  color: var(--primary);
}
.breadcrumb-sep {
  margin: 0 8px;
  color: #c5c0b8;
}

/* Section base */
.section {
  padding: 80px 0;
}
.section + .section {
  padding-top: 0;
}
.section-head {
  max-width: 640px;
  margin: 0 auto 48px;
  text-align: center;
}
.section-head.left {
  margin-left: 0;
  text-align: left;
}
.section-tag {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 100px;
  background: var(--accent-light);
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 14px;
}
.section-head h2 {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: 0.3px;
}
.section-head p {
  margin: 12px 0 0;
  font-size: 15px;
  color: var(--muted);
}

/* Login Methods */
.login-methods {
  position: relative;
}
.method-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.method-item {
  display: flex;
  gap: 18px;
  padding: 24px 22px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.method-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(14,159,142,0.35);
}
.method-num {
  font-size: 24px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  opacity: 0.5;
  font-variant-numeric: tabular-nums;
}
.method-content h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 6px;
}
.method-content p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  margin: 0;
}
.method-visual {
  position: relative;
  height: 100%;
  min-height: 320px;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.method-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.method-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(28,42,39,0.25), transparent 60%);
}
.method-float-card {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 18px;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(10px);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
}
.float-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border-radius: 10px;
  background: var(--primary-light);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}
.method-float-card strong {
  display: block;
  font-size: 14px;
  color: var(--ink);
}
.method-float-card span {
  font-size: 12px;
  color: var(--muted);
}

/* Login Steps */
.login-steps {
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-top: 8px;
}
.step-item {
  position: relative;
  padding: 28px 24px 24px;
  background: var(--bg);
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: var(--transition);
  overflow: hidden;
}
.step-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--primary);
  opacity: 0;
  transition: var(--transition);
}
.step-item:hover {
  border-color: var(--border);
  background: var(--white);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.step-item:hover::before {
  opacity: 1;
}
.step-index {
  position: absolute;
  top: -10px;
  right: 10px;
  font-size: 76px;
  font-weight: 800;
  color: rgba(14,159,142,0.08);
  line-height: 1;
  pointer-events: none;
}
.step-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  margin-bottom: 16px;
}
.step-item h3 {
  font-size: 17px;
  margin-bottom: 8px;
}
.step-item p {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
  line-height: 1.65;
}

/* Device Support */
.device-support {
  background: var(--bg);
}
.device-visual {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.device-img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}
.device-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(14,159,142,0.12), transparent 50%);
  pointer-events: none;
}
.device-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 24px;
}
.device-item {
  display: flex;
  gap: 16px;
  padding: 18px 20px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}
.device-item:hover {
  border-color: rgba(14,159,142,0.35);
  box-shadow: var(--shadow-sm);
}
.device-item-icon {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  border-radius: 10px;
  background: var(--primary-light);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
}
.device-item h3 {
  font-size: 16px;
  margin-bottom: 4px;
}
.device-item p {
  font-size: 13px;
  color: var(--muted);
  margin: 0;
  line-height: 1.6;
}

/* Safety Section */
.safety-section {
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.safety-card {
  padding: 28px 24px;
  background: var(--bg);
  border: 1px solid transparent;
  border-radius: var(--radius);
  text-align: left;
  transition: var(--transition);
  height: 100%;
}
.safety-card:hover {
  border-color: var(--border);
  background: var(--white);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.safety-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  margin-bottom: 16px;
}
.safety-card h3 {
  font-size: 16px;
  margin-bottom: 8px;
}
.safety-card p {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
  line-height: 1.65;
}

/* FAQ */
.faq-section {
  background: var(--bg);
}
.faq-list {
  max-width: 780px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.active {
  border-color: rgba(14,159,142,0.4);
  box-shadow: var(--shadow-sm);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 19px 22px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  text-align: left;
  background: transparent;
  border: none;
  cursor: pointer;
}
.faq-question i {
  font-size: 14px;
  color: var(--primary);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item.active .faq-question i {
  transform: rotate(45deg);
}
.faq-answer {
  display: none;
  padding: 0 22px 20px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}
.faq-item.active .faq-answer {
  display: block;
  animation: fadeIn 0.3s ease;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* CTA */
.cta-section {
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}
.cta-box {
  position: relative;
  z-index: 1;
  background: linear-gradient(120deg, #1c2a27, #123b36, #1c2a27);
  border-radius: 24px;
  padding: 70px 48px;
  text-align: center;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.cta-box::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.15;
  pointer-events: none;
}
.cta-box h2 {
  position: relative;
  z-index: 2;
  color: var(--white);
  font-size: 30px;
  font-weight: 800;
  margin-bottom: 12px;
}
.cta-box p {
  position: relative;
  z-index: 2;
  color: rgba(255,255,255,0.75);
  font-size: 16px;
  max-width: 520px;
  margin: 0 auto 32px;
  line-height: 1.7;
}
.cta-actions {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* Footer */
.site-footer {
  background: #141d1b;
  color: rgba(255,255,255,0.7);
  padding: 70px 0 0;
  border-top: 3px solid var(--primary);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 45px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.footer-logo .logo-icon {
  background: rgba(14,159,142,0.16);
  color: var(--primary);
}
.footer-logo span {
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
  max-width: 300px;
  color: rgba(255,255,255,0.6);
}
.footer-links h4,
.footer-contact h4 {
  color: var(--white);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
}
.footer-links ul li {
  margin-bottom: 8px;
}
.footer-links ul li a,
.footer-contact p {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  transition: var(--transition);
}
.footer-links ul li a:hover {
  color: var(--primary);
  padding-left: 4px;
}
.footer-contact p {
  line-height: 1.7;
  margin: 0;
  max-width: 220px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.footer-bottom p {
  margin: 0;
  font-size: 13px;
  color: rgba(255,255,255,0.45);
}
.footer-bottom a {
  color: rgba(255,255,255,0.6);
  text-decoration: none;
}
.footer-bottom a:hover {
  color: var(--primary);
}

/* Foundation override minimal */
.grid-margin-x > .cell {
  margin-bottom: 20px;
}
@media screen and (min-width: 64em) {
  .grid-margin-x > .cell {
    margin-bottom: 0;
  }
}

/* Responsive */
@media screen and (max-width: 1023px) {
  .section {
    padding: 64px 0;
  }
  .page-hero {
    padding: 135px 0 70px;
    min-height: 380px;
  }
  .page-hero h1 {
    font-size: 32px;
  }
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .nav-center {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .cta-box {
    padding: 52px 32px;
  }
}

@media screen and (max-width: 639px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .nav-inner {
    height: 64px;
  }
  .site-header.is-scrolled .search-toggle {
    display: none;
  }
  .logo-text {
    font-size: 15px;
  }
  .page-hero {
    padding: 118px 0 56px;
    min-height: 340px;
  }
  .page-hero h1 {
    font-size: 27px;
  }
  .hero-lead {
    font-size: 15px;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .section {
    padding: 52px 0;
  }
  .section-head {
    margin-bottom: 32px;
  }
  .section-head h2 {
    font-size: 24px;
  }
  .section-head p {
    font-size: 14px;
  }
  .steps-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .method-list {
    gap: 12px;
  }
  .method-item {
    padding: 18px 16px;
  }
  .method-visual {
    min-height: 260px;
    margin-top: 8px;
  }
  .device-img {
    height: 240px;
  }
  .device-list {
    margin-top: 16px;
  }
  .faq-question {
    font-size: 15px;
    padding: 16px 16px;
  }
  .faq-answer {
    padding: 0 16px 16px;
    font-size: 14px;
  }
  .cta-section {
    padding: 62px 0;
  }
  .cta-box {
    padding: 42px 22px;
    border-radius: 18px;
  }
  .cta-box h2 {
    font-size: 23px;
  }
  .cta-actions {
    flex-direction: column;
  }
  .cta-actions .btn {
    width: 100%;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-bottom: 30px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .method-float-card {
    left: 12px;
    right: 12px;
    bottom: 12px;
    padding: 12px 14px;
  }
}

/* roulang page: category2 */
:root {
  --primary: #0e8f8a;
  --primary-dark: #0a706c;
  --primary-light: #e0f2f1;
  --accent: #ff6a3d;
  --accent-dark: #e8542a;
  --accent-light: #fff0ea;
  --bg: #faf7f2;
  --bg-white: #ffffff;
  --ink: #1f2a2e;
  --text: #3d4a50;
  --text-light: #7b878d;
  --border: #e6e2dc;
  --shadow-sm: 0 2px 8px rgba(31, 42, 46, 0.06);
  --shadow-md: 0 8px 24px rgba(31, 42, 46, 0.10);
  --shadow-lg: 0 16px 40px rgba(31, 42, 46, 0.14);
  --radius: 14px;
  --radius-lg: 20px;
  --radius-sm: 10px;
  --space-section: 90px;
  --transition: 0.2s ease;
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-main); background: var(--bg); color: var(--text); font-size: 16px; line-height: 1.75; -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: inherit; }
button { cursor: pointer; border: none; background: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: rgba(255, 255, 255, 0.72); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid rgba(230, 226, 220, 0.80); box-shadow: var(--shadow-sm); transition: background 0.3s ease, box-shadow 0.3s ease; }
.site-header.scrolled { background: rgba(255, 255, 255, 0.96); box-shadow: var(--shadow-md); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 700; color: var(--ink); letter-spacing: 0.5px; }
.logo-icon { width: 40px; height: 40px; border-radius: 12px; background: linear-gradient(135deg, var(--primary), #3cb8a8); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 18px; box-shadow: 0 4px 12px rgba(14, 143, 138, 0.28); }
.logo span:last-child { white-space: nowrap; }
.nav-center .nav-list { display: flex; align-items: center; gap: 6px; }
.nav-link { display: inline-block; padding: 8px 16px; font-size: 15px; font-weight: 500; color: var(--text); border-radius: 999px; transition: all var(--transition); }
.nav-link:hover { color: var(--primary); background: var(--primary-light); }
.nav-link.is-active { color: var(--primary); background: var(--primary-light); font-weight: 600; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.header-search { position: relative; }
.search-toggle { width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--text); background: rgba(0,0,0,0.04); transition: all var(--transition); }
.search-toggle:hover { background: var(--primary-light); color: var(--primary); }
.search-panel { position: absolute; top: calc(100% + 10px); right: 0; width: 280px; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-lg); padding: 12px; display: none; }
.search-panel.open { display: block; }
.search-panel input { width: 100%; height: 44px; border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 0 14px; font-size: 14px; color: var(--ink); outline: none; transition: border-color var(--transition), box-shadow var(--transition); }
.search-panel input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(14, 143, 138, 0.15); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 46px; padding: 0 24px; border-radius: var(--radius-sm); font-size: 15px; font-weight: 600; transition: all var(--transition); border: 2px solid transparent; }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 4px 14px rgba(255, 106, 61, 0.30); }
.btn-primary:hover { background: var(--accent-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(255, 106, 61, 0.36); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:focus { outline: none; box-shadow: 0 0 0 4px rgba(255, 106, 61, 0.25); }
.btn-outline { background: transparent; border-color: var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary-light); color: var(--primary-dark); transform: translateY(-2px); }
.btn-outline:active { transform: translateY(0); }
.btn-ghost-light { border-color: rgba(255,255,255,0.7); color: #fff; background: rgba(255,255,255,0.12); }
.btn-ghost-light:hover { background: rgba(255,255,255,0.22); color: #fff; }
.mobile-toggle { display: none; width: 40px; height: 40px; border-radius: 10px; align-items: center; justify-content: center; color: var(--ink); font-size: 20px; background: rgba(0,0,0,0.04); }
.page-hero { position: relative; padding: 150px 0 80px; background: linear-gradient(135deg, rgba(14, 143, 138, 0.94), rgba(14, 110, 108, 0.88)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat; color: #fff; overflow: hidden; }
.page-hero::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 80px; background: linear-gradient(to bottom, transparent, var(--bg)); }
.page-hero .container { position: relative; z-index: 2; }
.page-hero .hero-eyebrow { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.16); border: 1px solid rgba(255,255,255,0.28); padding: 6px 16px; border-radius: 999px; font-size: 13px; letter-spacing: 1px; margin-bottom: 22px; }
.page-hero h1 { font-size: 40px; font-weight: 800; line-height: 1.25; color: #fff; margin-bottom: 16px; letter-spacing: 1px; }
.page-hero .hero-sub { font-size: 17px; line-height: 1.7; max-width: 620px; color: rgba(255,255,255,0.92); margin-bottom: 30px; }
.page-hero .hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.section-block { padding: var(--space-section) 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 48px; }
.section-head .section-label { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: var(--primary); background: var(--primary-light); padding: 6px 18px; border-radius: 999px; margin-bottom: 14px; }
.section-head h2 { font-size: 30px; font-weight: 800; color: var(--ink); line-height: 1.3; margin-bottom: 12px; }
.section-head p { font-size: 16px; color: var(--text-light); line-height: 1.7; }
.plan-compare-section { background: var(--bg-white); }
.plan-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: stretch; }
.plan-card { position: relative; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 36px 28px; transition: all var(--transition); display: flex; flex-direction: column; }
.plan-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.plan-card.is-recommend { background: linear-gradient(180deg, #f4fbfa, #eaf6f5); border: 2px solid var(--primary); box-shadow: 0 12px 32px rgba(14, 143, 138, 0.18); transform: scale(1.03); }
.plan-card.is-recommend:hover { transform: scale(1.03) translateY(-4px); box-shadow: 0 20px 44px rgba(14, 143, 138, 0.24); }
.plan-badge { position: absolute; top: -13px; left: 50%; transform: translateX(-50%); background: var(--accent); color: #fff; font-size: 13px; font-weight: 700; padding: 4px 18px; border-radius: 999px; box-shadow: 0 4px 12px rgba(255, 106, 61, 0.36); white-space: nowrap; }
.plan-name { font-size: 20px; font-weight: 700; color: var(--ink); margin-bottom: 4px; }
.plan-desc { font-size: 14px; color: var(--text-light); margin-bottom: 20px; }
.plan-price { font-size: 36px; font-weight: 800; color: var(--ink); margin-bottom: 8px; line-height: 1.2; }
.plan-price small { font-size: 15px; font-weight: 500; color: var(--text-light); }
.plan-period { font-size: 13px; color: var(--text-light); margin-bottom: 24px; }
.plan-features { flex: 1; margin-bottom: 28px; }
.plan-features li { display: flex; align-items: center; gap: 10px; padding: 8px 0; font-size: 14px; color: var(--text); border-bottom: 1px dashed var(--border); }
.plan-features li:last-child { border-bottom: none; }
.plan-features li .icon-check { color: var(--primary); font-size: 14px; flex: 0 0 18px; }
.plan-features li .icon-minus { color: #ccd3d6; font-size: 14px; flex: 0 0 18px; }
.plan-btn { width: 100%; margin-top: auto; }
.highlight-section { background: var(--bg); }
.highlight-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; max-width: 960px; margin: 0 auto; }
.highlight-card { display: flex; gap: 20px; background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px 28px; transition: all var(--transition); }
.highlight-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.highlight-card:nth-child(2) { transform: translateY(24px); }
.highlight-card:nth-child(2):hover { transform: translateY(21px); }
.highlight-card:nth-child(4) { transform: translateY(24px); }
.highlight-card:nth-child(4):hover { transform: translateY(21px); }
.highlight-icon { flex: 0 0 52px; width: 52px; height: 52px; border-radius: 14px; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 22px; }
.highlight-body h3 { font-size: 18px; font-weight: 700; color: var(--ink); margin-bottom: 6px; }
.highlight-body p { font-size: 15px; color: var(--text-light); line-height: 1.65; }
.scene-section { background: var(--bg-white); }
.scene-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; max-width: 1000px; margin: 0 auto; }
.scene-visual { position: relative; }
.scene-visual img { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); }
.scene-visual::after { content: ''; position: absolute; inset: 0; border-radius: var(--radius-lg); background: linear-gradient(to top, rgba(14,143,138,0.14), transparent); }
.scene-content h2 { font-size: 28px; font-weight: 800; color: var(--ink); margin-bottom: 16px; line-height: 1.3; }
.scene-content p { font-size: 16px; line-height: 1.75; color: var(--text); margin-bottom: 16px; }
.scene-list { margin-top: 22px; }
.scene-list li { display: flex; align-items: flex-start; gap: 12px; padding: 8px 0; font-size: 15px; color: var(--text); }
.scene-list li i { color: var(--primary); margin-top: 5px; font-size: 14px; }
.process-section { background: var(--bg); }
.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; max-width: 1100px; margin: 0 auto; }
.process-step { position: relative; background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 30px 22px; text-align: center; transition: all var(--transition); }
.process-step:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.process-num { font-size: 42px; font-weight: 800; color: var(--primary-light); line-height: 1; margin-bottom: 8px; display: block; }
.process-step h4 { font-size: 17px; font-weight: 700; color: var(--ink); margin-bottom: 8px; }
.process-step p { font-size: 14px; color: var(--text-light); line-height: 1.6; }
.process-step::after { content: '\f105'; font-family: 'Font Awesome 6 Free'; font-weight: 900; position: absolute; top: 50%; right: -16px; transform: translateY(-50%); color: #ccd3d6; font-size: 18px; z-index: 2; }
.process-step:last-child::after { display: none; }
.faq-section { background: var(--bg-white); }
.faq-container { max-width: 780px; margin: 0 auto; }
.faq-item { background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 16px; padding: 0 24px; transition: box-shadow var(--transition); }
.faq-item.open { box-shadow: var(--shadow-md); border-color: rgba(14, 143, 138, 0.4); }
.faq-question { display: flex; justify-content: space-between; align-items: center; gap: 16px; width: 100%; padding: 20px 0; font-size: 17px; font-weight: 600; color: var(--ink); text-align: left; }
.faq-question .faq-icon { flex: 0 0 24px; width: 24px; height: 24px; border-radius: 50%; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 13px; transition: transform 0.3s ease; }
.faq-item.open .faq-icon { transform: rotate(135deg); background: var(--primary); color: #fff; }
.faq-answer { display: none; padding: 0 0 22px; font-size: 15px; line-height: 1.75; color: var(--text); }
.faq-item.open .faq-answer { display: block; }
.cta-section { position: relative; background: linear-gradient(135deg, #14252a, #1d383d); padding: 90px 0; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat; opacity: 0.16; }
.cta-section .container { position: relative; z-index: 2; text-align: center; color: #fff; max-width: 720px; }
.cta-section h2 { font-size: 34px; font-weight: 800; color: #fff; margin-bottom: 16px; }
.cta-section p { font-size: 17px; color: rgba(255,255,255,0.82); margin-bottom: 36px; line-height: 1.7; }
.cta-features { display: flex; justify-content: center; gap: 36px; margin-bottom: 36px; flex-wrap: wrap; }
.cta-features span { display: inline-flex; align-items: center; gap: 8px; font-size: 15px; color: rgba(255,255,255,0.9); }
.cta-features i { color: #5fd0c4; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.site-footer { background: #132125; color: #9fb0b5; padding: 70px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 50px; }
.footer-logo { display: flex; align-items: center; gap: 10px; color: #fff; font-size: 20px; font-weight: 700; margin-bottom: 16px; }
.footer-logo .logo-icon { width: 38px; height: 38px; border-radius: 10px; background: linear-gradient(135deg, var(--primary), #3cb8a8); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 16px; }
.footer-brand p { font-size: 14px; line-height: 1.7; margin-bottom: 18px; }
.footer-links h4, .footer-contact h4 { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 18px; }
.footer-links ul li { margin-bottom: 10px; }
.footer-links ul li a { color: #9fb0b5; font-size: 14px; transition: color var(--transition), padding-left var(--transition); }
.footer-links ul li a:hover { color: #5fd0c4; padding-left: 4px; }
.footer-contact p { font-size: 14px; line-height: 1.7; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 26px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 13px; color: #7d9197; }
.footer-bottom a { color: #9fb0b5; }
.footer-bottom a:hover { color: #5fd0c4; }
.mobile-menu { display: none; position: fixed; top: 70px; left: 0; right: 0; background: rgba(255,255,255,0.98); backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); box-shadow: var(--shadow-lg); padding: 16px 24px 24px; z-index: 99; }
.mobile-menu.open { display: block; }
.mobile-menu .nav-list { display: flex; flex-direction: column; gap: 4px; }
.mobile-menu .nav-link { display: block; padding: 14px 16px; font-size: 16px; border-radius: 10px; }
.mobile-menu .nav-link:hover, .mobile-menu .nav-link.is-active { background: var(--primary-light); color: var(--primary); }
.mobile-menu .btn { width: 100%; margin-top: 12px; }
@media (max-width: 1023px) {
  .nav-center { display: none; }
  .header-actions .btn-primary { display: none; }
  .mobile-toggle { display: flex; }
  .plan-grid { gap: 16px; }
  .process-steps { grid-template-columns: 1fr 1fr; gap: 16px; }
  .process-step::after { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .highlight-card:nth-child(2), .highlight-card:nth-child(4) { transform: none; }
  .highlight-card:nth-child(2):hover, .highlight-card:nth-child(4):hover { transform: translateY(-3px); }
}
@media (max-width: 767px) {
  :root { --space-section: 56px; }
  .container { padding: 0 16px; }
  .page-hero { padding: 120px 0 60px; }
  .page-hero h1 { font-size: 28px; }
  .page-hero .hero-sub { font-size: 15px; }
  .hero-actions .btn { width: 100%; }
  .plan-grid { grid-template-columns: 1fr; }
  .plan-card.is-recommend { transform: none; }
  .plan-card.is-recommend:hover { transform: translateY(-4px); }
  .highlight-grid { grid-template-columns: 1fr; }
  .highlight-card:nth-child(2), .highlight-card:nth-child(4) { transform: none; }
  .highlight-card:nth-child(2):hover, .highlight-card:nth-child(4):hover { transform: translateY(-3px); }
  .scene-layout { grid-template-columns: 1fr; gap: 32px; }
  .process-steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .cta-section h2 { font-size: 26px; }
  .cta-actions .btn { width: 100%; }
  .section-head h2 { font-size: 24px; }
  .logo span:last-child { font-size: 18px; }
  .search-panel { width: 220px; }
}
@media (max-width: 479px) {
  .logo span:last-child { max-width: 180px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .cta-features { flex-direction: column; gap: 14px; }
}