/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --primary: #0B5D4A;
  --primary-dark: #084736;
  --primary-light: rgba(11, 93, 74, 0.08);
  --accent: #E07B3A;
  --accent-dark: #C96A2D;
  --bg: #F6F4EE;
  --dark: #102A24;
  --text: #26352F;
  --muted: #718078;
  --border: rgba(16, 42, 36, 0.10);
  --white: #FFFFFF;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-pill: 50px;
  --shadow-sm: 0 2px 8px rgba(16, 42, 36, 0.06);
  --shadow-md: 0 8px 20px rgba(16, 42, 36, 0.12);
  --spacing-section: 96px;
  --spacing-section-mobile: 56px;
  --font-family: "Source Han Sans SC", "Noto Sans CJK SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --transition: 0.2s ease;
}

/* ===== Reset / Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: 17px;
  line-height: 1.9;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

button {
  font-family: inherit;
  border: none;
  cursor: pointer;
  background: none;
}

ul, ol {
  list-style: none;
}

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

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  cursor: pointer;
  text-align: center;
  white-space: nowrap;
  border: 1px solid transparent;
}

.btn i {
  font-size: 18px;
}

.btn-primary {
  background: var(--accent);
  color: var(--dark);
}

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

.btn-primary:active {
  transform: translateY(1px);
  box-shadow: none;
}

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

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

.btn-outline-light {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.7);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--white);
  border-color: var(--white);
}

.btn-light {
  background: var(--white);
  color: var(--dark);
}

.btn-light:hover {
  background: #E8EDE9;
  color: var(--dark);
}

.btn-lg {
  padding: 16px 34px;
  font-size: 15px;
  border-radius: var(--radius-pill);
}

.btn-sm {
  padding: 10px 20px;
  font-size: 13px;
  border-radius: var(--radius-pill);
}

/* ===== 顶部导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  height: 72px;
  border-bottom: 1px solid var(--border);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-logo__icon {
  position: relative;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 2px solid var(--primary);
  display: block;
}

.brand-logo__icon::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 2.5px;
  background: var(--accent);
  border-radius: 3px;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) rotate(-40deg);
}

.brand-logo__text {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  padding: 4px 2px;
  position: relative;
  transition: color var(--transition);
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

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

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

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

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

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: all 0.3s;
}

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

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

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

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 96px 0 80px;
  background: var(--dark);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.4;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(16, 42, 36, 0.92) 30%, rgba(16, 42, 36, 0.55) 100%);
}

.hero__inner {
  position: relative;
  z-index: 2;
}

.hero__badge {
  display: inline-block;
  padding: 6px 18px;
  border-radius: var(--radius-pill);
  background: rgba(224, 123, 58, 0.18);
  border: 1px solid rgba(224, 123, 58, 0.4);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 24px;
}

.hero__title {
  font-size: 42px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 20px;
  max-width: 600px;
}

.hero__subtitle {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
  max-width: 560px;
  margin-bottom: 36px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 44px;
}

.hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 24px;
}

.hero__tags span {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
  padding: 0 24px;
  border-right: 1px solid rgba(255, 255, 255, 0.15);
  line-height: 1.4;
}

.hero__tags span:first-child {
  padding-left: 0;
}

.hero__tags span:last-child {
  border-right: none;
}

.hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero__app-img {
  max-width: 360px;
  width: 100%;
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

/* ===== 统计区 ===== */
.stats-section {
  padding: 48px 0;
  background: var(--white);
  border-bottom: 1px solid var(--border);
}

.stats-grid {
  display: flex;
  flex-wrap: wrap;
}

.stat-card {
  text-align: center;
  padding: 24px 12px;
}

.stat-number {
  display: block;
  font-size: 38px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 6px;
}

.stat-number sup {
  font-size: 20px;
  color: var(--accent);
  margin-left: 2px;
}

.stat-label {
  font-size: 14px;
  color: var(--muted);
}

/* ===== 通用 Section ===== */
.section {
  padding: var(--spacing-section) 0;
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}

.section-head__eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-head h2 {
  font-size: 30px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 16px;
}

.section-head p {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.7;
}

/* ===== 功能亮点 ===== */
.features-section {
  padding: var(--spacing-section) 0;
}

.feature-card {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 36px 28px;
  height: 100%;
  transition: all var(--transition);
}

.feature-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.feature-card__icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--primary);
  background: var(--primary-light);
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

/* ===== 轮播截图 ===== */
.screenshots-section {
  padding: var(--spacing-section) 0;
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.orbit {
  max-width: 900px;
  margin: 0 auto;
}

.orbit-figure {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.orbit-image {
  max-width: 260px;
  border-radius: 20px;
  box-shadow: var(--shadow-md);
  margin-bottom: 24px;
  border: 6px solid #fff;
  background: #E8EDE9;
}

.orbit-caption {
  text-align: center;
  margin-top: 12px;
}

.orbit-caption .feature-name {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  padding: 6px 20px;
  border-radius: var(--radius-pill);
  margin-bottom: 8px;
}

.orbit-caption p {
  font-size: 14px;
  color: var(--muted);
}

.orbit-bullets {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
}

.orbit-bullets button {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(16, 42, 36, 0.2);
  transition: all var(--transition);
  padding: 0;
}

.orbit-bullets button.is-active {
  background: var(--accent);
  transform: scale(1.2);
}

.orbit-controls {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 24px;
}

.orbit-previous,
.orbit-next {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--primary);
  background: var(--white);
  transition: all var(--transition);
}

.orbit-previous:hover,
.orbit-next:hover {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

/* ===== 系统要求 ===== */
.requirements-section {
  padding: var(--spacing-section) 0;
}

.requirement-card {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 40px 32px;
  height: 100%;
  transition: box-shadow var(--transition);
}

.requirement-card:hover {
  box-shadow: var(--shadow-md);
}

.requirement-card__header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
}

.requirement-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  background: var(--primary);
}

.requirement-card__header h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--dark);
}

.requirement-list {
  margin: 0;
}

.requirement-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

.requirement-list li:last-child {
  border-bottom: none;
}

.requirement-list li span:first-child {
  color: var(--muted);
}

.requirement-list li span:last-child {
  color: var(--text);
  font-weight: 500;
}

/* ===== 评价墙 ===== */
.testimonials-section {
  padding: var(--spacing-section) 0;
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.testimonial-card {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 28px 24px;
  height: 100%;
  transition: box-shadow var(--transition);
  border: 1px solid transparent;
}

.testimonial-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border);
}

.testimonial-card__header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.testimonial-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  flex-shrink: 0;
}

.testimonial-card__meta h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 2px;
}

.testimonial-card__meta .stars {
  color: var(--accent);
  font-size: 13px;
  letter-spacing: 2px;
}

.testimonial-card__text {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

/* ===== 强化下载区 ===== */
.download-section {
  position: relative;
  padding: 96px 0;
  background: var(--dark);
  overflow: hidden;
  text-align: center;
}

.download-section__bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.25;
}

.download-section__content {
  position: relative;
  z-index: 2;
}

.download-section__content h2 {
  font-size: 30px;
  color: var(--white);
  font-weight: 700;
  margin-bottom: 16px;
}

.download-section__content p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
  max-width: 620px;
  margin: 0 auto 36px;
}

.download-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

/* ===== 最新资讯 ===== */
.news-section {
  padding: var(--spacing-section) 0;
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.news-item {
  display: flex;
  gap: 24px;
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 20px;
  transition: all var(--transition);
}

.news-item:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.news-item__thumb {
  width: 180px;
  height: 120px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background: #E8EDE9;
}

.news-item__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-item__body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
}

.badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 6px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  align-self: flex-start;
  margin-bottom: 8px;
}

.news-item__title {
  font-size: 18px;
  font-weight: 600;
  color: var(--dark);
  line-height: 1.5;
  margin-bottom: 6px;
}

.news-item__title a {
  color: inherit;
}

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

.news-item__summary {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 8px;
}

.news-item__time {
  font-size: 13px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.news-empty {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 60px 24px;
  text-align: center;
  color: var(--muted);
  font-size: 15px;
}

.news-more {
  text-align: center;
  margin-top: 36px;
}

/* ===== FAQ ===== */
.faq-section {
  padding: var(--spacing-section) 0;
  background: var(--white);
  border-top: 1px solid var(--border);
}

.accordion {
  max-width: 800px;
  margin: 0 auto;
}

.accordion-item {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color var(--transition);
}

.accordion-item.is-active {
  border-color: var(--primary);
}

.accordion-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 16px;
  font-weight: 600;
  color: var(--dark);
  padding: 20px 24px;
  background: transparent;
  transition: color var(--transition);
}

.accordion-title:hover {
  color: var(--primary);
  background: rgba(11, 93, 74, 0.03);
}

.accordion-title::after {
  content: '+';
  font-size: 22px;
  font-weight: 400;
  color: var(--primary);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.accordion-item.is-active .accordion-title::after {
  transform: rotate(45deg);
}

.accordion-content {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.8;
}

/* ===== CTA ===== */
.cta-section {
  padding: var(--spacing-section) 0;
  background: var(--bg);
}

.cta-card {
  background: linear-gradient(135deg, var(--primary) 0%, var(--dark) 100%);
  border-radius: 20px;
  padding: 64px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  opacity: 0.15;
}

.cta-card__content {
  position: relative;
  z-index: 2;
}

.cta-card h2 {
  font-size: 30px;
  color: var(--white);
  font-weight: 700;
  margin-bottom: 14px;
}

.cta-card p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
  max-width: 600px;
  margin: 0 auto 32px;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--dark);
  padding: 64px 0 0;
  color: rgba(255, 255, 255, 0.75);
}

.footer-logo {
  font-size: 22px;
  font-weight: 700;
  color: var(--white);
  display: block;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  max-width: 280px;
}

.footer-column h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 20px;
}

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

.footer-column ul li a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
  transition: color var(--transition);
}

.footer-column ul li a:hover {
  color: var(--white);
}

.footer-column ul li span {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
}

.footer-bottom {
  margin-top: 48px;
  padding: 24px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
}

.footer-bottom a {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
}

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

/* ===== 响应式 ===== */
@media screen and (max-width: 1024px) {
  .hero__title {
    font-size: 36px;
  }

  .hero {
    padding: 72px 0 64px;
  }

  .site-nav {
    gap: 20px;
  }

  .nav-list {
    gap: 20px;
  }
}

@media screen and (max-width: 768px) {
  .site-header {
    height: 64px;
  }

  .header-inner {
    height: 64px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
  }

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

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    width: 100%;
  }

  .nav-link {
    display: block;
    padding: 10px 0;
    font-size: 16px;
  }

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

  .nav-link.is-active {
    background: var(--primary-light);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
  }

  .nav-cta {
    margin-top: 12px;
  }

  .hero__title {
    font-size: 28px;
    line-height: 1.35;
  }

  .hero__subtitle {
    font-size: 15px;
  }

  .hero__tags span {
    padding: 0 14px;
    font-size: 13px;
  }

  .hero__visual {
    margin-top: 40px;
  }

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

  .section-head {
    margin-bottom: 36px;
  }

  .section-head h2 {
    font-size: 22px;
  }

  .download-section {
    padding: 64px 0;
  }

  .news-item {
    flex-direction: column;
    gap: 16px;
  }

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

  .cta-card {
    padding: 40px 24px;
  }

  .cta-card h2 {
    font-size: 22px;
  }

  .cta-card p {
    font-size: 14px;
  }

  .btn-lg {
    padding: 14px 24px;
    font-size: 14px;
  }

  .footer-bottom {
    flex-direction: column;
  }
}

@media screen and (max-width: 520px) {
  .container {
    padding: 0 16px;
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero__actions .btn {
    width: 100%;
  }

  .hero__tags {
    flex-direction: column;
    gap: 8px;
  }

  .hero__tags span {
    border-right: none;
    padding: 0;
  }

  .stat-number {
    font-size: 28px;
  }

  .stat-label {
    font-size: 13px;
  }

  .download-actions {
    flex-direction: column;
    align-items: stretch;
  }

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

/* ===== Foundation 覆盖 ===== */
.accordion-title:focus {
  background: rgba(11, 93, 74, 0.04);
  color: var(--primary);
}

.orbit-bullets button:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.orbit-previous:focus,
.orbit-next:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ===== 动效辅助 ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero__content {
  animation: fadeInUp 0.8s ease both;
}

.hero__visual {
  animation: fadeInUp 0.8s ease 0.15s both;
}

/* roulang page: category1 */
:root {
  --primary: #0B5D4A;
  --primary-light: rgba(11, 93, 74, 0.08);
  --primary-dark: #08473A;
  --accent: #E07B3A;
  --accent-dark: #C96A2D;
  --bg: #F6F4EE;
  --dark: #102A24;
  --text: #26352F;
  --muted: #718078;
  --border: rgba(16, 42, 36, 0.10);
  --white: #ffffff;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-pill: 50px;
  --shadow-rest: 0 2px 8px rgba(16, 42, 36, 0.06);
  --shadow-hover: 0 8px 20px rgba(16, 42, 36, 0.12);
  --transition: 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Source Han Sans SC", "Noto Sans CJK SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 17px;
  line-height: 1.9;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease, background 0.2s ease, border 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

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

ul, ol {
  list-style: none;
}

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

@media (max-width: 640px) {
  .container {
    padding: 0 16px;
  }
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.4;
  color: var(--dark);
}

h1 { font-size: 42px; line-height: 1.3; }
h2 { font-size: 30px; line-height: 1.4; }
h3 { font-size: 20px; line-height: 1.5; }
p { margin-bottom: 1.5em; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  padding: 14px 28px;
  border-radius: var(--radius-btn);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  letter-spacing: 0.02em;
  outline: none;
}

.btn:hover {
  transform: translateY(-1px);
  text-decoration: none;
}

.btn:active {
  transform: translateY(0) scale(0.98);
}

.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--accent);
  color: var(--dark);
  border-color: var(--accent);
}

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

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

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

.btn-white {
  background: var(--white);
  color: var(--dark);
  border-color: var(--white);
}

.btn-white:hover {
  background: rgba(255,255,255,0.88);
  color: var(--dark);
}

.btn-ghost-light {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.7);
}

.btn-ghost-light:hover {
  background: rgba(255,255,255,0.12);
  border-color: var(--white);
  color: var(--white);
}

.btn-sm {
  padding: 10px 20px;
  font-size: 13px;
  border-radius: var(--radius-pill);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 15px;
  border-radius: var(--radius-pill);
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  height: 72px;
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-logo__icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary);
  position: relative;
  display: inline-block;
  flex-shrink: 0;
}

.brand-logo__icon::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 2px;
  background: var(--accent);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-45deg);
  border-radius: 2px;
}

.brand-logo__text {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 32px;
  margin: 0;
  padding: 0;
}

.nav-list li {
  margin: 0;
}

.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  padding: 6px 4px;
  border-bottom: 2px solid transparent;
  position: relative;
  text-decoration: none;
  line-height: 1.4;
  display: inline-block;
}

.nav-link:hover {
  color: var(--primary);
  border-bottom-color: rgba(11, 93, 74, 0.3);
}

.nav-link.is-active {
  color: var(--primary);
  font-weight: 600;
  border-bottom-color: var(--accent);
}

.nav-cta {
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: all 0.3s ease;
}

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

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

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

/* ===== Hero ===== */
.hero {
  position: relative;
  background: linear-gradient(rgba(16, 42, 36, 0.78), rgba(16, 42, 36, 0.72)), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  color: var(--white);
  padding: 96px 0 88px;
  overflow: hidden;
}

.hero-inner {
  position: relative;
  z-index: 2;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: var(--white);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  margin-bottom: 24px;
  letter-spacing: 0.04em;
}

.hero-badge i {
  color: var(--accent);
  font-size: 12px;
}

.hero h1 {
  color: var(--white);
  font-size: 42px;
  line-height: 1.3;
  margin-bottom: 20px;
  letter-spacing: 0.01em;
}

.hero-subtitle {
  font-size: 17px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.88);
  max-width: 560px;
  margin-bottom: 32px;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.hero-stat__num {
  font-size: 28px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.2;
}

.hero-stat__label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
}

.hero-visual {
  position: relative;
}

.hero-img {
  border-radius: var(--radius-card);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
  width: 100%;
  height: 400px;
  object-fit: cover;
}

.score-card {
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--white);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-hover);
  padding: 16px 24px;
  width: calc(100% - 40px);
  max-width: 340px;
  border: 1px solid var(--border);
}

.score-card__meta {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 8px;
  letter-spacing: 0.03em;
}

.score-card__teams {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.score-card__team {
  font-size: 14px;
  font-weight: 600;
  color: var(--dark);
  flex: 1;
}

.score-card__team--right {
  text-align: right;
}

.score-card__score {
  font-size: 24px;
  font-weight: 800;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
}

.score-card__event {
  font-size: 12px;
  color: var(--accent);
  margin-top: 6px;
  text-align: center;
}

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

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}

.section-header .tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}

.section-header h2 {
  font-size: 30px;
  color: var(--dark);
  margin-bottom: 12px;
}

.section-header p {
  font-size: 16px;
  color: var(--muted);
  margin-bottom: 0;
}

/* ===== Feature cards ===== */
.feature-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  transition: box-shadow 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
  height: 100%;
}

.feature-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--primary);
  transform: translateY(-4px);
}

.feature-card__img {
  border-radius: var(--radius-card);
  overflow: hidden;
  margin-bottom: 24px;
  height: 160px;
}

.feature-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

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

.feature-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 19px;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
  margin-bottom: 0;
}

/* ===== Stats bar ===== */
.stats-section {
  background: linear-gradient(rgba(16, 42, 36, 0.82), rgba(16, 42, 36, 0.74)), url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
  padding: 80px 0;
  color: var(--white);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.stat-item {
  text-align: center;
  padding: 24px 16px;
  border-right: 1px solid rgba(255, 255, 255, 0.12);
}

.stat-item:last-child {
  border-right: none;
}

.stat-item__num {
  font-size: 40px;
  font-weight: 800;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 6px;
}

.stat-item__label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
}

/* ===== Scenarios ===== */
.scenario-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  margin-bottom: 80px;
}

.scenario-block:last-child {
  margin-bottom: 0;
}

.scenario-block--reverse {
  direction: rtl;
}

.scenario-block--reverse > * {
  direction: ltr;
}

.scenario-img {
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-rest);
}

.scenario-img img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.scenario-block:hover .scenario-img img {
  transform: scale(1.02);
}

.scenario-content .tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  background: rgba(224, 123, 58, 0.1);
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
  letter-spacing: 0.03em;
}

.scenario-content h3 {
  font-size: 24px;
  color: var(--dark);
  margin-bottom: 16px;
}

.scenario-content p {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.9;
  margin-bottom: 20px;
}

.scenario-points {
  padding: 0;
}

.scenario-points li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text);
  padding: 6px 0;
}

.scenario-points li i {
  color: var(--primary);
  font-size: 14px;
  margin-top: 5px;
  flex-shrink: 0;
}

/* ===== Process ===== */
.process-section {
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.process-step {
  text-align: center;
  padding: 32px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  background: var(--bg);
  transition: all 0.2s ease;
}

.process-step:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--primary);
  background: var(--white);
  transform: translateY(-2px);
}

.process-step__num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  font-size: 16px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.process-step h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 8px;
}

.process-step p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 0;
}

/* ===== FAQ ===== */
.faq-section {
  padding: 96px 0;
}

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

.faq-list .accordion-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  margin-bottom: 16px;
  overflow: hidden;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.faq-list .accordion-item.is-active {
  border-color: var(--primary);
  box-shadow: var(--shadow-rest);
}

.faq-list .accordion-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  padding: 20px 24px;
  background: var(--white);
  border: none;
  line-height: 1.5;
  text-decoration: none;
  position: relative;
}

.faq-list .accordion-title:hover {
  background: var(--bg);
  color: var(--primary);
}

.faq-list .accordion-title::before {
  content: "\2B";
  font-family: inherit;
  font-size: 22px;
  font-weight: 400;
  color: var(--muted);
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  transition: transform 0.3s ease, color 0.2s ease;
}

.faq-list .accordion-item.is-active .accordion-title::before {
  content: "\2212";
  color: var(--primary);
}

.faq-list .accordion-content {
  border: none;
  border-top: 1px solid var(--border);
  background: var(--white);
  padding: 4px 24px 20px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
}

.faq-list .accordion-content p:last-child {
  margin-bottom: 0;
}

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(rgba(16, 42, 36, 0.8), rgba(16, 42, 36, 0.74)), url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
  padding: 96px 0;
  text-align: center;
  color: var(--white);
}

.cta-section h2 {
  color: var(--white);
  font-size: 32px;
  margin-bottom: 16px;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.82);
  font-size: 16px;
  max-width: 560px;
  margin: 0 auto 32px;
}

.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-top: 8px;
}

/* ===== Breadcrumb ===== */
.breadcrumb-bar {
  padding: 24px 0 0;
  font-size: 13px;
  color: var(--muted);
}

.breadcrumb-bar a {
  color: var(--muted);
}

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

.breadcrumb-bar span {
  margin: 0 8px;
  color: rgba(255,255,255,0.5);
}

.breadcrumb-bar .current {
  color: rgba(255,255,255,0.8);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.75);
  padding: 64px 0 32px;
  font-size: 14px;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.75);
  transition: color 0.2s ease;
}

.site-footer a:hover {
  color: var(--white);
}

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

.footer-logo {
  font-size: 22px;
  font-weight: 700;
  color: var(--white);
  display: block;
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 0;
}

.footer-column h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 16px;
}

.footer-column ul {
  padding: 0;
  margin: 0;
}

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

.footer-column ul li a,
.footer-column ul li span {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
}

.footer-column ul li a:hover {
  color: var(--accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  margin-top: 48px;
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
  margin-bottom: 0;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-visual {
    max-width: 600px;
    margin: 0 auto;
    width: 100%;
  }

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

  .stat-item {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .stat-item:nth-child(even) {
    border-left: 1px solid rgba(255, 255, 255, 0.08);
  }

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

  .scenario-block {
    grid-template-columns: 1fr;
    gap: 32px;
    margin-bottom: 56px;
  }

  .scenario-block--reverse {
    direction: ltr;
  }
}

@media (max-width: 768px) {
  .site-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px 24px;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    box-shadow: 0 12px 32px rgba(16, 42, 36, 0.1);
  }

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

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    width: 100%;
  }

  .nav-list li {
    width: 100%;
  }

  .nav-link {
    display: block;
    padding: 12px 0;
    font-size: 16px;
    width: 100%;
    border-bottom: none;
    border-left: 2px solid transparent;
    padding-left: 12px;
  }

  .nav-link.is-active {
    border-bottom: none;
    border-left-color: var(--accent);
    background: var(--primary-light);
  }

  .nav-cta {
    width: 100%;
  }

  .nav-toggle {
    display: flex;
  }

  .section {
    padding: 64px 0;
  }

  .section-header h2 {
    font-size: 24px;
  }

  .hero {
    padding: 64px 0 72px;
  }

  .hero h1 {
    font-size: 30px;
  }

  .hero-subtitle {
    font-size: 15px;
  }

  .hero-stats {
    gap: 20px;
  }

  .hero-stat__num {
    font-size: 22px;
  }

  .feature-card {
    padding: 24px 20px;
  }

  .faq-section {
    padding: 64px 0;
  }

  .cta-section {
    padding: 64px 0;
  }

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

@media (max-width: 520px) {
  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }

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

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

  .stat-item {
    border-left: none !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

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

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

  .score-card {
    position: static;
    transform: none;
    width: 100%;
    margin-top: 16px;
  }

  .hero-img {
    height: 260px;
  }

  .scenario-img img {
    height: 220px;
  }

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

  .footer-bottom p {
    font-size: 12px;
  }
}

/* Foundation overrides */
.grid-container {
  max-width: 1200px;
}

.accordion .accordion-item {
  border: none;
}

button, .button {
  font-family: inherit;
}

a:focus, button:focus {
  outline: none;
}

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

/* roulang page: article */
:root{
  --primary:#0B5D4A;
  --accent:#E07B3A;
  --bg:#F6F4EE;
  --dark:#102A24;
  --text:#26352F;
  --muted:#718078;
  --border:rgba(16,42,36,.10);
  --radius:12px;
  --radius-btn:50px;
  --shadow:0 2px 8px rgba(16,42,36,.06);
  --shadow-hover:0 8px 20px rgba(16,42,36,.12);
  --transition:.2s ease;
  --container:1200px;
  --space:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;font-family:"Source Han Sans SC","Noto Sans CJK SC","PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);font-size:17px;line-height:1.9;-webkit-font-smoothing:antialiased;}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
.grid-x{display:flex;flex-wrap:wrap;}
.cell{padding:0;}
.grid-margin-x{margin:0 -12px;}
.grid-margin-x > .cell{padding:0 12px;}
/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:14px;font-weight:700;padding:14px 28px;border-radius:var(--radius-btn);border:none;cursor:pointer;text-decoration:none;transition:all var(--transition);font-family:inherit;line-height:1.2;}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}
.btn-primary{background:var(--accent);color:var(--dark);}
.btn-primary:hover{background:#C96A2D;transform:translateY(-1px);box-shadow:0 6px 16px rgba(224,123,58,.3);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-outline-light{background:transparent;border:1px solid rgba(255,255,255,.7);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.1);border-color:#fff;}
.btn-light{background:#fff;color:var(--dark);}
.btn-light:hover{background:var(--bg);transform:translateY(-1px);}
.btn-sm{padding:8px 18px;font-size:13px;border-radius:50px;}
/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:100;height:72px;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid rgba(16,42,36,.08);}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;max-width:var(--container);margin:0 auto;padding:0 24px;}
.brand-logo{display:flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0;}
.brand-logo__icon{width:36px;height:36px;border-radius:50%;background:var(--primary);position:relative;display:inline-block;flex-shrink:0;}
.brand-logo__icon::after{content:'';position:absolute;width:14px;height:14px;border:3px solid var(--accent);border-left-color:transparent;border-top-color:transparent;border-radius:50%;top:8px;left:4px;transform:rotate(-30deg);}
.brand-logo__text{font-size:22px;font-weight:700;color:var(--primary);letter-spacing:.5px;white-space:nowrap;}
.site-nav{display:flex;align-items:center;gap:32px;}
.nav-list{display:flex;list-style:none;margin:0;padding:0;gap:32px;align-items:center;}
.nav-link{font-size:15px;font-weight:500;color:var(--text);text-decoration:none;padding:6px 2px;position:relative;transition:color var(--transition);}
.nav-link:hover{color:var(--primary);}
.nav-link.is-active{color:var(--primary);font-weight:600;}
.nav-link.is-active::after{content:'';position:absolute;bottom:0;left:0;right:0;height:2px;background:var(--accent);border-radius:2px;}
.nav-cta{margin-left:12px;flex-shrink:0;}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;width:40px;height:40px;position:relative;z-index:110;padding:0;}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--dark);margin:5px auto;border-radius:2px;transition:all .3s;}
.nav-toggle.is-active span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-active span:nth-child(2){opacity:0;}
.nav-toggle.is-active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
/* 面包屑 */
.article-breadcrumb{padding:28px 0 0;font-size:13px;color:var(--muted);}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;}
.breadcrumb a{color:var(--muted);transition:color var(--transition);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb-divider{color:rgba(16,42,36,.25);margin:0 2px;}
.breadcrumb-current{color:var(--text);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
/* 文章主体 */
.article-main{padding:24px 0 72px;}
.article-header{max-width:760px;margin:0 auto 36px;}
.article-meta{display:flex;align-items:center;gap:16px;margin-bottom:16px;flex-wrap:wrap;}
.category-badge{display:inline-block;background:rgba(11,93,74,.08);color:var(--primary);font-size:13px;font-weight:600;padding:4px 12px;border-radius:6px;border:1px solid rgba(11,93,74,.15);transition:all var(--transition);}
.category-badge:hover{background:rgba(11,93,74,.14);}
.article-date{font-size:14px;color:var(--muted);}
.article-title{font-size:32px;font-weight:700;line-height:1.35;color:var(--dark);margin:0;letter-spacing:.5px;}
/* 正文排版 */
.article-content{max-width:760px;margin:0 auto;font-size:17px;line-height:1.9;color:var(--text);word-break:break-word;}
.article-content > *:first-child{margin-top:0;}
.article-content p{margin-bottom:1.5em;}
.article-content h2{font-size:26px;font-weight:700;color:var(--dark);margin:1.6em 0 .6em;line-height:1.4;}
.article-content h3{font-size:20px;font-weight:600;color:var(--dark);border-left:3px solid var(--primary);padding-left:14px;margin:1.4em 0 .5em;line-height:1.5;}
.article-content h4{font-size:18px;font-weight:600;color:var(--dark);margin:1.2em 0 .5em;}
.article-content a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;transition:color var(--transition);}
.article-content a:hover{color:var(--accent);}
.article-content blockquote{border-left:4px solid var(--accent);background:var(--bg);padding:18px 22px;border-radius:0 8px 8px 0;margin:1.6em 0;color:var(--text);}
.article-content ul,.article-content ol{margin:0 0 1.5em;padding-left:1.4em;}
.article-content li{margin-bottom:.5em;}
.article-content img{max-width:100%;height:auto;border-radius:var(--radius);margin:1.6em 0;box-shadow:var(--shadow);}
.article-content figure{margin:1.6em 0;}
.article-content figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px;}
.article-content hr{border:none;border-top:1px solid var(--border);margin:2em 0;}
.article-content strong{color:var(--dark);font-weight:600;}
.article-content table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;}
.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(--dark);}
.article-content code{background:var(--bg);padding:2px 8px;border-radius:4px;font-size:.9em;}
/* 空状态 */
.article-empty-section{padding:80px 0;}
.article-empty{max-width:600px;margin:0 auto;text-align:center;padding:60px 40px;background:#fff;border:2px dashed rgba(16,42,36,.15);border-radius:16px;}
.empty-icon{width:64px;height:64px;margin:0 auto 20px;border-radius:50%;background:rgba(224,123,58,.1);color:var(--accent);font-size:28px;font-weight:700;display:flex;align-items:center;justify-content:center;}
.article-empty h1{font-size:22px;color:var(--dark);margin-bottom:12px;font-weight:700;}
.article-empty p{color:var(--muted);margin-bottom:24px;font-size:15px;}
/* 相关推荐 */
.related-posts{background:var(--bg);padding:72px 0;border-top:1px solid var(--border);}
.section-header{text-align:center;margin-bottom:48px;}
.section-header h2{font-size:30px;font-weight:700;color:var(--dark);margin:0 0 8px;line-height:1.4;}
.section-header p{font-size:15px;color:var(--muted);margin:0;}
.related-card{display:block;background:#fff;border-radius:var(--radius);border:1px solid var(--border);overflow:hidden;box-shadow:var(--shadow);transition:all var(--transition);height:100%;}
.related-card:hover{box-shadow:var(--shadow-hover);border-color:var(--primary);transform:translateY(-2px);}
.related-card__thumb{width:100%;height:160px;overflow:hidden;position:relative;background:#E8EDE9;}
.related-card__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.related-card:hover .related-card__thumb img{transform:scale(1.03);}
.related-card__body{padding:20px;}
.related-card__body h3{font-size:17px;font-weight:600;color:var(--dark);margin:10px 0 8px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.related-card__body time{font-size:13px;color:var(--muted);}
/* 下载CTA */
.download-cta{background:var(--dark);padding:72px 0;text-align:center;background-image:linear-gradient(135deg,rgba(11,93,74,.4) 0%,rgba(16,42,36,.85) 60%),url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;}
.download-cta h2{color:#fff;font-size:30px;margin:0 0 12px;font-weight:700;line-height:1.4;}
.download-cta p{color:rgba(255,255,255,.75);font-size:16px;max-width:560px;margin:0 auto 32px;line-height:1.7;}
.cta-buttons{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;}
/* 页脚 */
.site-footer{background:var(--dark);color:rgba(255,255,255,.75);padding:56px 0 0;font-size:14px;}
.site-footer .grid-x{padding-bottom:40px;}
.footer-brand p{margin-top:16px;line-height:1.7;color:rgba(255,255,255,.6);max-width:300px;}
.footer-logo{font-size:22px;font-weight:700;color:#fff;display:flex;align-items:center;gap:8px;}
.footer-logo::before{content:'';width:28px;height:28px;border-radius:50%;background:var(--primary);border:2px solid #fff;display:inline-block;position:relative;flex-shrink:0;}
.footer-column h4{color:#fff;font-size:16px;font-weight:600;margin-bottom:16px;}
.footer-column ul{list-style:none;margin:0;padding:0;}
.footer-column li{margin-bottom:10px;}
.footer-column a{color:rgba(255,255,255,.75);text-decoration:none;transition:color var(--transition);}
.footer-column a:hover{color:#fff;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;color:rgba(255,255,255,.5);font-size:13px;}
/* 响应式 */
@media (max-width:1024px){
  :root{--space:72px;}
  .site-nav{position:fixed;top:72px;left:0;right:0;background:#fff;flex-direction:column;padding:16px 24px 24px;box-shadow:0 12px 24px rgba(16,42,36,.12);border-bottom:1px solid var(--border);transform:translateY(-120%);opacity:0;transition:all .3s ease;z-index:99;gap:16px;max-height:calc(100vh - 72px);overflow-y:auto;}
  .site-nav.is-open{transform:translateY(0);opacity:1;}
  .nav-list{flex-direction:column;width:100%;gap:0;padding:0;}
  .nav-list li{width:100%;}
  .nav-link{display:block;width:100%;padding:12px 16px;font-size:16px;border-bottom:1px solid rgba(16,42,36,.06);border-radius:8px;}
  .nav-link.is-active::after{display:none;}
  .nav-link.is-active{background:rgba(11,93,74,.08);color:var(--primary);font-weight:600;}
  .nav-cta{margin:16px 0 0;width:100%;}
  .nav-toggle{display:block;}
  .article-title{font-size:28px;}
  .related-posts .cell{margin-bottom:20px;}
}
@media (max-width:640px){
  :root{--space:56px;}
  .container{padding:0 16px;}
  .header-inner{padding:0 16px;}
  .brand-logo__text{font-size:18px;}
  .article-breadcrumb{padding:20px 0 0;}
  .article-main{padding:20px 0 48px;}
  .article-title{font-size:24px;}
  .article-content{font-size:16px;line-height:1.85;}
  .article-content h2{font-size:22px;}
  .article-content h3{font-size:18px;}
  .section-header h2{font-size:24px;}
  .download-cta{padding:56px 0;}
  .download-cta h2{font-size:24px;}
  .cta-buttons{flex-direction:column;align-items:center;}
  .cta-buttons .btn{width:100%;max-width:300px;}
  .footer-bottom{flex-direction:column;align-items:center;text-align:center;}
  .related-card__thumb{height:140px;}
}
@media (max-width:520px){
  .brand-logo__text{font-size:16px;letter-spacing:0;}
  .brand-logo__icon{width:30px;height:30px;}
  .brand-logo__icon::after{width:10px;height:10px;top:7px;left:3px;border-width:2px;}
  .article-title{font-size:21px;}
  .breadcrumb-current{max-width:200px;}
}