/* roulang page: index */
/* ========== 设计令牌 ========== */
:root {
  --deep-tea: #2B211B;
  --amber: #C9955A;
  --terracotta: #8A3B27;
  --paper: #F5EFE6;
  --dark-coal: #191510;
  --warm-white: #FFFCF7;
  --taupe: #A69B8F;
  --light-line: #E0D6C8;
  --radius-card: 10px;
  --radius-btn: 4px;
  --shadow: 0 10px 30px rgba(43,33,27,.08);
  --shadow-hover: 0 18px 40px rgba(43,33,27,.16);
  --font-stack: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
}

/* ========== 基础与重置 ========== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-stack);
  color: var(--deep-tea);
  background: var(--paper);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s ease; }
a:hover { color: var(--amber); }
ul, ol { margin: 0; padding: 0; }
button { font-family: inherit; }
h1, h2, h3, h4, h5, h6 {
  margin: 0 0 .4em;
  font-weight: 800;
  line-height: 1.2;
  color: var(--deep-tea);
}
p { margin: 0 0 1em; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ========== 通用组件 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 30px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .02em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .25s ease;
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--amber);
  color: var(--deep-tea);
}
.btn-primary:hover {
  background: #d9a86f;
  color: var(--deep-tea);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(201,149,90,.35);
}
.btn-primary:focus,
.btn-primary:active {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}
.btn-ghost {
  background: transparent;
  border-color: rgba(255,252,247,.7);
  color: #FFFCF7;
}
.btn-ghost:hover {
  background: #FFFCF7;
  color: var(--deep-tea);
  transform: translateY(-2px);
}
.btn-ghost:focus,
.btn-ghost:active {
  outline: 2px solid #FFFCF7;
  outline-offset: 2px;
}
.badge {
  display: inline-flex;
  align-items: center;
  height: 26px;
  padding: 0 14px;
  background: var(--paper);
  color: var(--deep-tea);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
  white-space: nowrap;
}
.badge-accent {
  background: var(--terracotta);
  color: #fff;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--terracotta);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.eyebrow::after {
  content: "";
  display: block;
  width: 36px;
  height: 1px;
  background: var(--amber);
}
.section-head {
  max-width: 760px;
  margin-bottom: 48px;
}
.section-head h2 {
  font-size: 32px;
  font-weight: 900;
  color: var(--deep-tea);
  margin-bottom: 12px;
}
.section-head p {
  font-size: 16px;
  color: var(--taupe);
  line-height: 1.9;
}
.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
.section-head.center .eyebrow::after { display: none; }
.section-head.center .eyebrow::before,
.section-head.center .eyebrow::after {
  content: "";
  display: inline-block;
  width: 28px;
  height: 1px;
  background: var(--amber);
}
.section-head.center .eyebrow::before { margin-right: 10px; }
.section-head.center .eyebrow::after { margin-left: 10px; }

/* ========== 顶部导航 ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 80px;
  z-index: 1000;
  background: transparent;
  transition: background .35s ease, box-shadow .35s ease, border-color .35s ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(255,252,247,.95);
  box-shadow: 0 4px 20px rgba(43,33,27,.06);
  border-bottom-color: var(--light-line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}
.brand {
  font-size: 18px;
  font-weight: 900;
  color: #FFFCF7;
  letter-spacing: .02em;
  line-height: 1.2;
  text-decoration: none;
  max-width: 320px;
}
.site-header.scrolled .brand { color: var(--deep-tea); }
.site-nav { display: flex; gap: 34px; }
.site-nav a {
  color: rgba(255,252,247,.88);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  padding: 8px 0;
  position: relative;
  transition: color .25s ease;
}
.site-header.scrolled .site-nav a { color: var(--deep-tea); }
.site-nav a:hover { color: var(--amber); }
.site-nav a.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--amber);
  border-radius: 2px;
}
.site-nav a.active { font-weight: 700; }
.site-nav a:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 6px;
}
.nav-cta {
  color: #FFFCF7;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  border: 1px solid rgba(255,252,247,.6);
  padding: 8px 20px;
  border-radius: 999px;
  transition: all .25s ease;
}
.site-header.scrolled .nav-cta {
  color: var(--deep-tea);
  border-color: rgba(43,33,27,.35);
}
.nav-cta:hover {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--deep-tea);
}
.nav-cta:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: 0;
  padding: 12px 8px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #FFFCF7;
  border-radius: 2px;
  transition: background .25s ease;
}
.site-header.scrolled .nav-toggle span { background: var(--deep-tea); }
.mobile-menu {
  display: none;
  position: fixed;
  top: 80px;
  left: 0;
  right: 0;
  background: var(--warm-white);
  z-index: 999;
  box-shadow: var(--shadow);
  border-bottom: 1px solid var(--light-line);
  padding: 8px 24px 18px;
}
.mobile-menu a {
  display: block;
  padding: 15px 0;
  font-size: 18px;
  font-weight: 700;
  color: var(--deep-tea);
  border-bottom: 1px solid var(--light-line);
  text-decoration: none;
}
.mobile-menu a:last-child { border-bottom: 0; }
.mobile-menu a:hover { color: var(--amber); }
.mobile-menu a:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: -4px;
}

/* ========== Hero 首屏 ========== */
.hero {
  position: relative;
  padding: 150px 0 84px;
  background-color: var(--dark-coal);
  background-image:
    radial-gradient(circle at 74% 16%, rgba(201,149,90,.24), transparent 55%),
    linear-gradient(115deg, rgba(25,21,16,.74), rgba(43,33,27,.86)),
    url('/assets/images/backpic/back-1.jpg');
  background-size: cover;
  background-position: center;
  color: #FFFCF7;
}
.hero .grid-x { align-items: center; }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--amber);
  background: rgba(255,252,247,.08);
  border: 1px solid rgba(255,252,247,.16);
  padding: 7px 16px;
  border-radius: 999px;
  margin-bottom: 22px;
}
.hero h1 {
  font-size: 44px;
  font-weight: 900;
  line-height: 1.16;
  color: #FFFCF7;
  letter-spacing: .01em;
  margin-bottom: 18px;
}
.hero-sub {
  font-size: 17px;
  line-height: 1.9;
  color: rgba(255,252,247,.78);
  max-width: 520px;
  margin-bottom: 30px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 44px; }

/* Hero 预约卡 */
.book-card {
  background: var(--warm-white);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-hover);
  padding: 28px;
  clip-path: polygon(16px 0, 100% 0, 100% 100%, 0 100%, 0 16px);
}
.book-card .card-head {
  border-bottom: 1px solid var(--light-line);
  padding-bottom: 14px;
  margin-bottom: 8px;
}
.book-card .card-head h3 {
  font-size: 18px;
  font-weight: 800;
  color: var(--deep-tea);
  margin: 0;
}
.book-card .card-head p {
  font-size: 13px;
  color: var(--taupe);
  margin: 4px 0 0;
}
.slot-list { list-style: none; margin: 0; padding: 0; }
.slot-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px dashed var(--light-line);
  font-size: 15px;
  color: var(--deep-tea);
}
.slot-list li:last-child { border-bottom: 0; }
.slot-name { font-weight: 700; }
.slot-time { color: var(--taupe); font-size: 14px; }
.slot-status {
  color: var(--terracotta);
  font-size: 13px;
  font-weight: 700;
}
.slot-status.ok { color: #4c7a5a; }
.book-note {
  margin-top: 14px;
  padding: 12px 14px;
  background: var(--paper);
  border-radius: 8px;
  font-size: 13px;
  color: var(--taupe);
  border-left: 2px solid var(--amber);
}
.book-card .btn { width: 100%; margin-top: 16px; }

/* Hero 数据条 */
.hero-stats {
  margin-top: 64px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(255,252,247,.14);
  padding-top: 36px;
  gap: 24px;
}
.hero-stat .num {
  font-size: 30px;
  font-weight: 900;
  color: var(--amber);
  line-height: 1.1;
}
.hero-stat .label {
  font-size: 13px;
  color: rgba(255,252,247,.62);
  margin-top: 4px;
}

/* ========== 最新资讯动态板 ========== */
.news-section {
  padding: 96px 0;
  background: var(--paper);
}
.news-list {
  border-top: 1px solid var(--light-line);
}
.news-row {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 24px;
  align-items: center;
  padding: 28px 24px;
  background: transparent;
  border-bottom: 1px solid var(--light-line);
  text-decoration: none;
  color: inherit;
  transition: background .25s ease, padding-left .25s ease;
}
.news-row:hover {
  background: var(--warm-white);
  color: inherit;
  padding-left: 28px;
}
.news-row:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: -4px;
}
.news-date {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.news-day {
  font-size: 34px;
  font-weight: 900;
  color: var(--amber);
  line-height: 1;
}
.news-month {
  font-size: 13px;
  color: var(--taupe);
  margin-top: 2px;
}
.news-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--deep-tea);
  margin: 0 0 6px;
  line-height: 1.4;
}
.news-row:hover .news-body h3 { color: var(--terracotta); }
.news-body p {
  font-size: 14px;
  color: var(--taupe);
  line-height: 1.7;
  margin: 0;
}
.news-time {
  display: inline-block;
  margin-top: 8px;
  font-size: 12px;
  color: var(--taupe);
}
.news-foot {
  display: flex;
  align-items: center;
  gap: 12px;
}
.news-arrow {
  font-size: 22px;
  color: var(--amber);
  transition: transform .25s ease;
}
.news-row:hover .news-arrow { transform: translateX(6px); }
.news-empty {
  text-align: center;
  color: var(--taupe);
  padding: 40px 0;
  font-size: 15px;
}

/* ========== 卖点三连 ========== */
.feature-section {
  padding: 96px 0;
  background: var(--warm-white);
}
.feature-card {
  background: var(--warm-white);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow);
  padding: 32px 28px 28px;
  border-top: 1px solid var(--amber);
  position: relative;
  height: 100%;
  transition: transform .3s ease, box-shadow .3s ease;
  margin-bottom: 16px;
}
.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  border-top: 18px solid rgba(201,149,90,.5);
  border-left: 18px solid transparent;
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.feature-card:focus-within {
  outline: 2px solid var(--amber);
  outline-offset: 4px;
}
.feature-num {
  font-size: 52px;
  font-weight: 900;
  color: rgba(201,149,90,.28);
  line-height: 1;
  margin-bottom: 16px;
  font-variant-numeric: tabular-nums;
}
.feature-icon {
  width: 44px;
  height: 44px;
  margin-bottom: 18px;
  color: var(--terracotta);
}
.feature-icon svg {
  width: 44px;
  height: 44px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.6;
}
.feature-card h3 {
  font-size: 20px;
  font-weight: 800;
  color: var(--deep-tea);
  margin-bottom: 10px;
}
.feature-card p {
  font-size: 14px;
  color: var(--taupe);
  line-height: 1.8;
  margin-bottom: 16px;
}
.feature-link {
  font-size: 14px;
  font-weight: 700;
  color: var(--amber);
  text-decoration: none;
}
.feature-link:hover { color: var(--terracotta); }

/* ========== 数据指标条 ========== */
.stats-strip {
  background: var(--deep-tea);
  color: #FFFCF7;
  padding: 48px 0;
}
.stat-item {
  text-align: center;
  padding: 12px 0;
}
.stat-num {
  font-size: 40px;
  font-weight: 900;
  color: var(--amber);
  line-height: 1.1;
}
.stat-label {
  font-size: 13px;
  color: rgba(255,252,247,.64);
  margin-top: 6px;
  letter-spacing: .03em;
}

/* ========== 场景演示 ========== */
.scene-section {
  padding: 96px 0;
  background: var(--paper);
}
.scene-row {
  align-items: center;
  margin-bottom: 80px;
}
.scene-row:last-child { margin-bottom: 0; }
.scene-media {
  position: relative;
  clip-path: polygon(18px 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%, 0 18px);
  border-radius: var(--radius-card);
  overflow: hidden;
}
.scene-media img {
  width: 100%;
  height: 340px;
  object-fit: cover;
}
.scene-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(25,21,16,.28), rgba(201,149,90,.12));
  pointer-events: none;
}
.scene-caption {
  margin-top: 14px;
  font-size: 13px;
  color: var(--taupe);
}
.scene-copy h2 {
  font-size: 28px;
  font-weight: 900;
  color: var(--deep-tea);
  line-height: 1.3;
  margin-bottom: 16px;
}
.scene-copy p {
  font-size: 15px;
  color: #5A514A;
  line-height: 1.95;
  margin-bottom: 14px;
}
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}
.tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  background: var(--warm-white);
  border: 1px solid var(--light-line);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--deep-tea);
  transition: border-color .2s ease, background .2s ease;
}
.tag:hover {
  border-color: var(--amber);
  background: var(--paper);
}

/* ========== 社会认同 ========== */
.reviews-section {
  padding: 96px 0;
  background: var(--warm-white);
  border-bottom: 1px solid var(--amber);
}
.review-card {
  background: var(--warm-white);
  border: 1px solid var(--light-line);
  border-radius: var(--radius-card);
  padding: 28px;
  box-shadow: var(--shadow);
  height: 100%;
  transition: transform .3s ease, box-shadow .3s ease;
  position: relative;
}
.review-card::before {
  content: "";
  position: absolute;
  bottom: 0;
  right: 0;
  border-bottom: 14px solid var(--amber);
  border-left: 14px solid transparent;
}
.review-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.stars {
  color: var(--amber);
  font-size: 16px;
  letter-spacing: 4px;
  margin-bottom: 14px;
}
.review-text {
  font-size: 14px;
  color: var(--deep-tea);
  line-height: 1.85;
  margin-bottom: 18px;
}
.review-author {
  font-size: 13px;
  color: var(--taupe);
  font-weight: 600;
}
.review-meta {
  font-size: 12px;
  color: var(--taupe);
  margin-top: 2px;
}

/* ========== FAQ 手风琴 ========== */
.faq-section {
  padding: 96px 0;
  background: var(--paper);
}
.custom-accordion {
  background: transparent;
  border: 0;
}
.custom-accordion .accordion-item {
  background: var(--warm-white);
  border: 1px solid var(--light-line);
  border-radius: var(--radius-card);
  margin-bottom: 14px;
  overflow: hidden;
  box-shadow: none;
  transition: box-shadow .25s ease, border-color .25s ease;
}
.custom-accordion .accordion-item.is-active,
.custom-accordion .accordion-item:hover {
  border-color: rgba(201,149,90,.5);
  box-shadow: var(--shadow);
}
.custom-accordion .accordion-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--deep-tea);
  padding: 20px 24px;
  background: var(--warm-white);
  border-bottom: 1px solid transparent;
  line-height: 1.5;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.custom-accordion .accordion-title:hover {
  background: var(--warm-white);
  color: var(--deep-tea);
}
.custom-accordion .accordion-title:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: -4px;
}
.custom-accordion .accordion-title::after {
  content: "+";
  font-size: 24px;
  font-weight: 400;
  color: var(--amber);
  flex-shrink: 0;
  margin-left: 16px;
  transition: transform .2s ease;
}
.custom-accordion .accordion-item.is-active > .accordion-title::after {
  content: "−";
}
.custom-accordion .accordion-item.is-active > .accordion-title {
  background: var(--paper);
  border-bottom-color: var(--light-line);
}
.custom-accordion .accordion-content {
  padding: 20px 24px;
  background: var(--paper);
  border-left: 2px solid var(--amber);
  color: #5A514A;
  font-size: 15px;
  line-height: 1.9;
}
.custom-accordion .accordion-content a { color: var(--terracotta); font-weight: 600; }
.custom-accordion .accordion-content a:hover { color: var(--amber); }
.faq-tip {
  margin-top: 28px;
  text-align: center;
  font-size: 14px;
  color: var(--taupe);
}
.faq-tip a { color: var(--amber); font-weight: 700; }

/* ========== 页脚 CTA ========== */
.cta-band {
  position: relative;
  padding: 96px 0;
  text-align: center;
  background-color: var(--dark-coal);
  background-image:
    radial-gradient(circle at 58% 18%, rgba(201,149,90,.22), transparent 58%),
    linear-gradient(120deg, rgba(25,21,16,.82), rgba(43,33,27,.9)),
    url('/assets/images/backpic/back-2.jpg');
  background-size: cover;
  background-position: center;
  color: #FFFCF7;
}
.cta-band h2 {
  font-size: 34px;
  font-weight: 900;
  color: #FFFCF7;
  margin-bottom: 16px;
}
.cta-band p {
  font-size: 16px;
  color: rgba(255,252,247,.76);
  max-width: 640px;
  margin: 0 auto 34px;
  line-height: 1.9;
}
.cta-band .btn { min-width: 180px; }

/* ========== 页脚 ========== */
.site-footer {
  background: var(--deep-tea);
  color: rgba(255,252,247,.7);
  padding: 72px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
}
.footer-brand {
  font-size: 20px;
  font-weight: 900;
  color: #FFFCF7;
  line-height: 1.4;
  margin-bottom: 14px;
}
.footer-brand small {
  display: block;
  font-size: 13px;
  font-weight: 400;
  color: rgba(255,252,247,.5);
  margin-top: 6px;
}
.footer-about {
  font-size: 14px;
  line-height: 1.9;
  color: rgba(255,252,247,.62);
  max-width: 360px;
}
.footer-title {
  font-size: 15px;
  font-weight: 700;
  color: #FFFCF7;
  margin-bottom: 16px;
}
.footer-links a {
  display: block;
  padding: 5px 0;
  color: rgba(255,252,247,.68);
  text-decoration: none;
  font-size: 14px;
  transition: color .2s ease, padding-left .2s ease;
}
.footer-links a:hover { color: var(--amber); padding-left: 6px; }
.footer-links a:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}
.footer-contact p {
  font-size: 14px;
  margin-bottom: 8px;
  color: rgba(255,252,247,.68);
}
.footer-contact strong { color: #FFFCF7; font-weight: 600; }
.footer-bottom {
  border-top: 1px solid rgba(255,252,247,.12);
  margin-top: 48px;
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,252,247,.45);
}

/* ========== 底部固定转化条 ========== */
.sticky-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 950;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 0 28px;
  background: rgba(25,21,16,.94);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-top: 1px solid var(--amber);
}
.sticky-bar .sticky-text {
  color: #FFFCF7;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
}
.sticky-bar .btn {
  height: 40px;
  padding: 0 24px;
  font-size: 14px;
  flex-shrink: 0;
}
body { padding-bottom: 64px; }

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .brand { font-size: 16px; max-width: 260px; }
  .site-nav { gap: 22px; }
  .hero h1 { font-size: 38px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); row-gap: 20px; }
  .scene-copy h2 { font-size: 24px; }
  .footer-grid { gap: 32px; }
}

@media (max-width: 768px) {
  .site-nav, .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .hero { padding: 120px 0 64px; }
  .hero h1 { font-size: 32px; }
  .hero-sub { font-size: 16px; }
  .book-card { margin-top: 28px; clip-path: none; border-radius: var(--radius-card); }
  .news-section, .feature-section, .stats-strip, .scene-section, .reviews-section, .faq-section, .cta-band { padding: 64px 0; }
  .section-head h2 { font-size: 26px; }
  .news-row {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 22px 16px;
  }
  .news-row:hover { padding-left: 16px; }
  .news-foot { justify-content: space-between; }
  .news-date { flex-direction: row; align-items: baseline; gap: 8px; }
  .news-day { font-size: 26px; }
  .news-month { margin-top: 0; }
  .stat-num { font-size: 32px; }
  .scene-row { margin-bottom: 56px; }
  .scene-media img { height: 240px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .sticky-bar { height: 56px; padding: 0 16px; }
  body { padding-bottom: 56px; }
  .sticky-bar .sticky-text { font-size: 13px; }
  .sticky-bar .btn { padding: 0 18px; }
  .cta-band h2 { font-size: 28px; }
}

@media (max-width: 520px) {
  .brand { font-size: 15px; }
  .hero h1 { font-size: 27px; }
  .hero-sub { font-size: 15px; }
  .hero-actions .btn { width: 100%; }
  .hero-stats { grid-template-columns: 1fr; text-align: center; }
  .hero-stat .num { font-size: 26px; }
  .feature-card { padding: 26px 20px; }
  .feature-num { font-size: 42px; }
  .review-card { padding: 24px 20px; }
  .custom-accordion .accordion-title { font-size: 16px; padding: 17px 18px; }
  .custom-accordion .accordion-content { padding: 16px 18px; }
  .sticky-bar .sticky-text { display: none; }
  .sticky-bar { justify-content: flex-end; }
  .sticky-bar .btn { width: 100%; }
}

/* roulang page: article */
:root {
  --tea-dark: #2B211B;
  --amber: #C9955A;
  --amber-light: #DBAE78;
  --clay: #8A3B27;
  --bg-paper: #F5EFE6;
  --bg-dark: #191510;
  --bg-warm: #FFFCF7;
  --neutral: #A69B8F;
  --line-light: #E0D6C8;
  --line-dark: rgba(255,255,255,.12);
  --radius-card: 10px;
  --radius-btn: 4px;
  --shadow-1: 0 10px 30px rgba(43,33,27,.08);
  --shadow-2: 0 18px 40px rgba(43,33,27,.16);
  --space-section: 96px;
  --font-main: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-main);
  background: var(--bg-paper);
  color: var(--tea-dark);
  font-size: 17px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 .4em;
  font-weight: 800;
  line-height: 1.3;
  color: var(--tea-dark);
}

p {
  margin: 0 0 1.1em;
}

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

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
  border-radius: 4px;
}

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

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

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  font-family: var(--font-main);
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background .25s ease, color .25s ease, transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

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

.btn-primary:hover {
  background: var(--amber-light);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(201,153,90,.35);
}

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

.btn-outline {
  border-color: rgba(255,255,255,.65);
  color: var(--bg-warm);
  background: transparent;
}

.btn-outline:hover {
  background: rgba(255,255,255,.12);
  border-color: rgba(255,255,255,.9);
  transform: translateY(-2px);
}

.btn-outline:active {
  transform: translateY(0);
  background: rgba(255,255,255,.2);
}

.btn-lg {
  min-height: 52px;
  padding: 16px 38px;
  font-size: 17px;
}

.btn-sm {
  min-height: 40px;
  padding: 10px 24px;
  font-size: 15px;
}

.tag-badge {
  display: inline-flex;
  align-items: center;
  height: 28px;
  padding: 0 14px;
  border-radius: 999px;
  background: var(--bg-paper);
  color: var(--tea-dark);
  font-size: 13px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
}

.tag-clay {
  background: var(--clay);
  color: #fff;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--clay);
  font-weight: 600;
  transition: color .2s ease;
}

.text-link:hover {
  color: var(--amber);
}

.text-link i {
  transition: transform .2s ease;
}

.text-link:hover i {
  transform: translateX(-4px);
}

/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 999;
  background: rgba(25,21,16,.55);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,.07);
  transition: background .3s ease, border-color .3s ease;
}

.site-header.scrolled {
  background: rgba(25,21,16,.94);
  border-color: rgba(201,153,90,.25);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  gap: 20px;
}

.site-logo {
  font-size: 21px;
  font-weight: 900;
  letter-spacing: .5px;
  color: var(--bg-warm);
  line-height: 1.25;
  white-space: nowrap;
  transition: color .2s ease;
}

.site-logo:hover {
  color: var(--amber-light);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 4px;
  margin-left: 28px;
  color: rgba(245,239,230,.9);
  font-weight: 500;
  font-size: 16px;
  transition: color .2s ease;
}

.site-nav a:hover {
  color: var(--amber-light);
}

.site-nav a.active {
  color: var(--amber);
}

.site-nav a.active::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--amber);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border: 1px solid rgba(255,255,255,.28);
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  transition: border-color .2s ease;
}

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

.nav-toggle:hover {
  border-color: var(--amber);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== Page Hero ===== */
.page-hero {
  position: relative;
  min-height: 430px;
  display: flex;
  align-items: flex-end;
  padding: 170px 0 56px;
  background:
    radial-gradient(560px 320px at 78% 28%, rgba(201,153,90,.22), transparent 70%),
    linear-gradient(115deg, rgba(25,21,16,.9) 0%, rgba(43,33,27,.72) 60%, rgba(25,21,16,.88) 100%),
    url('/assets/images/backpic/back-1.jpg') center / cover no-repeat;
  overflow: hidden;
}

.page-hero::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(201,153,90,.6), transparent);
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: rgba(245,239,230,.72);
  margin-bottom: 26px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255,255,255,.14);
}

.breadcrumb a {
  color: rgba(245,239,230,.75);
  transition: color .2s ease;
}

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

.breadcrumb .sep {
  color: rgba(201,153,90,.7);
}

.breadcrumb .current {
  color: var(--bg-warm);
  font-weight: 600;
}

.hero-title {
  font-size: 46px;
  font-weight: 900;
  line-height: 1.2;
  color: var(--bg-warm);
  max-width: 960px;
  margin: 0 0 20px;
  text-shadow: 0 4px 20px rgba(0,0,0,.35);
}

.hero-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px 20px;
  color: rgba(255,255,255,.85);
  font-size: 15px;
}

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

/* ===== Article Main ===== */
.article-main {
  background: var(--bg-paper);
  padding: 64px 0 120px;
}

.article-wrap {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 24px;
}

.article-card {
  position: relative;
  background: var(--bg-warm);
  border-radius: 14px;
  border-top: 3px solid var(--amber);
  box-shadow: var(--shadow-1);
  padding: 56px 58px;
}

.article-content {
  font-size: 17px;
  line-height: 2;
  color: var(--tea-dark);
}

.article-content p {
  margin-bottom: 1.25em;
}

.article-content h2 {
  font-size: 28px;
  font-weight: 800;
  margin: 1.6em 0 .6em;
  padding-bottom: .35em;
  border-bottom: 1px solid var(--line-light);
}

.article-content h3 {
  font-size: 22px;
  font-weight: 700;
  margin: 1.5em 0 .55em;
}

.article-content h4 {
  font-size: 18px;
  font-weight: 700;
  margin: 1.4em 0 .5em;
}

.article-content a {
  color: var(--clay);
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: color .2s ease;
}

.article-content a:hover {
  color: var(--amber);
}

.article-content ul,
.article-content ol {
  margin: 0 0 1.25em;
  padding-left: 1.5em;
}

.article-content li {
  margin-bottom: .35em;
}

.article-content blockquote {
  position: relative;
  margin: 32px 0;
  padding: 26px 30px;
  background: var(--bg-paper);
  border-left: 4px solid var(--amber);
  border-radius: 0 10px 10px 0;
  font-size: 18px;
  line-height: 1.9;
  color: var(--tea-dark);
}

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

.article-content img {
  border-radius: 12px;
  margin: 24px 0;
  box-shadow: var(--shadow-1);
}

.article-content pre {
  margin: 24px 0;
  padding: 22px;
  background: var(--bg-dark);
  color: var(--bg-paper);
  border-radius: 10px;
  overflow-x: auto;
  font-size: 14px;
  line-height: 1.7;
}

.article-content code {
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}

.article-content pre code {
  background: transparent;
  padding: 0;
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 15px;
}

.article-content th,
.article-content td {
  padding: 12px 16px;
  border: 1px solid var(--line-light);
  text-align: left;
}

.article-content th {
  background: var(--bg-paper);
  font-weight: 700;
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--line-light);
}

.back-home-row {
  margin-top: 32px;
}

/* ===== Empty State ===== */
.article-empty {
  background: var(--bg-warm);
  border-radius: 14px;
  border: 1px solid var(--line-light);
  text-align: center;
  padding: 80px 32px;
  box-shadow: var(--shadow-1);
}

.empty-mark {
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--bg-paper);
  color: var(--amber);
  font-size: 30px;
}

.article-empty h2 {
  font-size: 28px;
  margin-bottom: 12px;
}

.article-empty p {
  max-width: 520px;
  margin: 0 auto 28px;
  color: var(--neutral);
}

/* ===== Related Section ===== */
.related-section {
  background: var(--bg-warm);
  padding: var(--space-section) 0;
  border-top: 1px solid var(--line-light);
}

.section-head {
  margin-bottom: 44px;
}

.section-overline {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--amber);
  margin-bottom: 10px;
}

.section-head h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 8px;
}

.section-head p {
  color: var(--neutral);
  font-size: 16px;
  margin: 0;
}

.related-grid > .cell {
  margin-bottom: 28px;
}

.related-card {
  display: block;
  height: 100%;
  background: var(--bg-warm);
  border: 1px solid var(--line-light);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-1);
  transition: transform .25s ease, box-shadow .25s ease;
}

.related-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-2);
}

.related-img {
  position: relative;
  overflow: hidden;
  background: var(--line-light);
}

.related-img img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform .4s ease;
}

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

.related-body {
  padding: 26px 26px 30px;
}

.related-body h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.45;
}

.related-body p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--neutral);
  margin-bottom: 18px;
}

.related-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--clay);
  font-weight: 600;
  font-size: 15px;
  transition: color .2s ease;
}

.related-card:hover .related-more {
  color: var(--amber);
}

.related-more i {
  transition: transform .2s ease;
}

.related-card:hover .related-more i {
  transform: translateX(4px);
}

/* ===== Footer CTA ===== */
.footer-cta {
  position: relative;
  background: var(--tea-dark);
  padding: 96px 24px;
  overflow: hidden;
}

.footer-cta::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 720px;
  height: 420px;
  background: radial-gradient(closest-side, rgba(201,153,90,.22), transparent);
  pointer-events: none;
}

.cta-inner {
  position: relative;
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.cta-inner h2 {
  font-size: 36px;
  font-weight: 800;
  color: var(--bg-warm);
  margin-bottom: 18px;
}

.cta-inner p {
  color: rgba(245,239,230,.75);
  font-size: 17px;
  margin-bottom: 34px;
}

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

/* ===== Footer ===== */
.site-footer {
  background: var(--tea-dark);
  color: rgba(245,239,230,.85);
  padding: 72px 0 120px;
  border-top: 1px solid rgba(255,255,255,.06);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.4fr;
  gap: 48px;
}

.footer-grid > .cell {
  margin: 0 !important;
  padding: 0 !important;
}

.footer-brand {
  font-size: 22px;
  font-weight: 900;
  color: var(--bg-warm);
  line-height: 1.35;
  margin-bottom: 16px;
}

.footer-brand small {
  display: block;
  font-size: 14px;
  font-weight: 400;
  color: var(--amber);
  margin-top: 6px;
  letter-spacing: .5px;
}

.footer-about {
  font-size: 15px;
  line-height: 1.9;
  color: rgba(245,239,230,.7);
  margin: 0;
}

.footer-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--bg-warm);
  margin-bottom: 18px;
  letter-spacing: .5px;
}

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

.footer-links a {
  color: rgba(245,239,230,.75);
  font-size: 15px;
  transition: color .2s ease, padding-left .2s ease;
}

.footer-links a:hover {
  color: var(--amber-light);
  padding-left: 6px;
}

.footer-contact p {
  margin: 0 0 10px;
  font-size: 15px;
  color: rgba(245,239,230,.75);
}

.footer-bottom {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.12);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 14px;
  color: rgba(245,239,230,.55);
}

/* ===== Sticky CTA ===== */
.sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  z-index: 900;
  background: rgba(25,21,16,.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-top: 1px solid rgba(201,153,90,.38);
}

.sticky-cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 64px;
  padding: 0 16px;
}

.sticky-text {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  color: var(--bg-warm);
  font-size: 15px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
}

.sticky-text i {
  color: var(--amber);
  font-size: 18px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .site-logo {
    font-size: 18px;
  }

  .site-nav a {
    margin-left: 20px;
  }

  .page-hero {
    min-height: 390px;
  }

  .hero-title {
    font-size: 38px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }

  .related-img img {
    height: 190px;
  }
}

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

  .site-logo {
    font-size: 16px;
    white-space: normal;
    max-width: 55%;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-dark);
    flex-direction: column;
    align-items: stretch;
    padding: 12px 24px 24px;
    border-bottom: 1px solid rgba(201,153,90,.3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity .25s ease, transform .25s ease, visibility .25s ease;
    box-shadow: 0 20px 40px rgba(0,0,0,.3);
  }

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

  .site-nav a {
    display: block;
    margin: 0;
    padding: 14px 4px;
    font-size: 20px;
    border-bottom: 1px solid rgba(255,255,255,.08);
    border-radius: 0;
  }

  .site-nav a.active::after {
    bottom: 8px;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--amber);
  }

  .page-hero {
    padding: 130px 0 44px;
    min-height: 360px;
  }

  .hero-title {
    font-size: 32px;
  }

  .article-main {
    padding: 44px 0 90px;
  }

  .article-card {
    padding: 32px 26px;
  }

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

  .article-content h2 {
    font-size: 24px;
  }

  .footer-cta {
    padding: 72px 24px;
  }

  .cta-inner h2 {
    font-size: 30px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

  .site-footer {
    padding-bottom: 110px;
  }

  .sticky-cta-inner {
    height: 56px;
  }

  .sticky-text {
    font-size: 14px;
  }
}

@media (max-width: 520px) {
  .site-logo {
    font-size: 14px;
  }

  .hero-title {
    font-size: 27px;
  }

  .hero-meta {
    gap: 10px;
    font-size: 13px;
  }

  .breadcrumb {
    font-size: 13px;
    margin-bottom: 20px;
  }

  .article-card {
    padding: 24px 18px;
    border-radius: 10px;
  }

  .related-body h3 {
    font-size: 18px;
  }

  .related-img img {
    height: 170px;
  }

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

  .sticky-text i {
    display: none;
  }

  .sticky-text {
    font-size: 13px;
  }

  .sticky-cta-inner .btn {
    min-height: 40px;
    padding: 8px 18px;
    font-size: 14px;
  }
}