/* roulang page: index */
:root {
  --bg-primary: #14100C;
  --bg-secondary: #1E1914;
  --bg-card: #241D17;
  --bg-deep: #0E0B08;
  --accent: #C8924E;
  --accent-light: #D9A76B;
  --accent-dark: #A67B3C;
  --tea-green: #7A9E7E;
  --cinnabar: #C05640;
  --text-primary: #ECE5DB;
  --text-secondary: #A8998A;
  --text-muted: #7A6E60;
  --border-amber: rgba(200,146,78,0.2);
  --border-amber-light: rgba(200,146,78,0.35);
  --radius-card: 14px;
  --radius-btn: 10px;
  --shadow-card: 0 8px 24px rgba(0,0,0,0.35);
  --shadow-hover: 0 14px 36px rgba(0,0,0,0.5);
  --container-max: 1200px;
  --gap-section: clamp(4rem, 8vw, 7rem);
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; transition: color .25s, border-color .25s; }
a:hover { color: var(--accent-light); }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
h1, h2, h3, h4 { font-family: var(--font-serif); line-height: 1.35; font-weight: 700; color: var(--text-primary); }
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 clamp(1rem, 3vw, 2rem); }
section { padding: var(--gap-section) 0; }
.section-head { margin-bottom: 3rem; max-width: 720px; }
.section-head .tag { display: inline-flex; align-items: center; gap: 8px; font-size: .8rem; color: var(--accent); letter-spacing: .1em; text-transform: uppercase; margin-bottom: 1rem; font-weight: 500; }
.section-head .tag::before { content: ""; width: 28px; height: 1px; background: var(--accent); }
.section-head h2 { font-size: clamp(1.5rem, 2.8vw, 2.25rem); margin-bottom: 1rem; }
.section-head p { color: var(--text-secondary); font-size: .95rem; }

/* Header */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: 72px;
  display: flex;
  align-items: center;
  background: linear-gradient(to bottom, rgba(20,16,12,.85) 0%, rgba(20,16,12,.5) 60%, transparent 100%);
  transition: background .4s, box-shadow .4s, backdrop-filter .4s;
}
.site-header.scrolled {
  background: rgba(20,16,12,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 4px 20px rgba(0,0,0,.3);
  border-bottom: 1px solid var(--border-amber);
}
.header-inner {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(1rem, 3vw, 2rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-serif); font-size: 1.3rem; font-weight: 700; color: var(--text-primary); }
.brand-icon {
  width: 38px; height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent-light), var(--accent-dark));
  display: flex; align-items: center; justify-content: center;
  color: #1A1512;
  font-size: 1.1rem;
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(200,146,78,.35);
}
.main-nav { display: flex; align-items: center; gap: 2.2rem; }
.main-nav a { color: var(--text-secondary); font-size: .9rem; font-weight: 500; letter-spacing: .02em; position: relative; padding: 4px 2px; }
.main-nav a::after { content: ""; position: absolute; left: 0; bottom: -2px; width: 0; height: 2px; background: var(--accent); transition: width .3s; }
.main-nav a:hover { color: var(--accent-light); }
.main-nav a:hover::after { width: 100%; }
.main-nav a.active { color: var(--accent); }
.main-nav a.active::after { width: 100%; }
.header-cta { display: flex; align-items: center; gap: 1rem; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: .75rem 1.75rem; border-radius: var(--radius-btn); font-weight: 600; font-size: .9rem; border: none; cursor: pointer; transition: all .3s; line-height: 1.4; }
.btn-primary { background: linear-gradient(135deg, #D9A76B, #C8924E); color: #1A1512; box-shadow: 0 6px 20px rgba(200,146,78,.25); }
.btn-primary:hover { background: linear-gradient(135deg, #E0B57E, #D9A76B); color: #1A1512; transform: translateY(-2px); box-shadow: 0 10px 28px rgba(200,146,78,.35); }
.btn-primary:active { transform: translateY(0); }
.btn-outline { background: transparent; color: var(--accent); border: 1px solid var(--border-amber-light); }
.btn-outline:hover { background: rgba(200,146,78,.1); color: var(--accent-light); border-color: var(--accent); transform: translateY(-2px); }
.btn-outline:active { transform: translateY(0); }
.btn-lg { padding: .9rem 2.2rem; font-size: 1rem; }

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  background-image: linear-gradient(90deg, rgba(20,16,12,.92) 0%, rgba(20,16,12,.75) 45%, rgba(20,16,12,.35) 100%), linear-gradient(to top, var(--bg-primary) 0%, transparent 30%), url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: -20%; right: -5%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(200,146,78,.25), transparent 60%);
  filter: blur(60px);
  animation: beamGlow 8s ease-in-out infinite alternate;
  pointer-events: none;
}
@keyframes beamGlow {
  0% { opacity: .5; transform: translateX(0); }
  100% { opacity: 1; transform: translateX(-30px); }
}
.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 3rem;
  align-items: center;
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(1rem, 3vw, 2rem);
}
.hero-content .hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 999px;
  border: 1px solid var(--border-amber-light);
  background: rgba(200,146,78,.1);
  font-size: .8rem;
  color: var(--accent);
  letter-spacing: .04em;
  margin-bottom: 1.5rem;
}
.hero-badge-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 8px var(--accent); animation: dotPulse 2s infinite; }
@keyframes dotPulse { 0%,100% { opacity: 1; } 50% { opacity: .4; } }
.hero h1 { font-size: clamp(2.25rem, 5.5vw, 4rem); line-height: 1.25; margin-bottom: 1.5rem; color: var(--text-primary); }
.hero h1 .line-accent { display: inline-block; background: linear-gradient(135deg, var(--accent-light), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-sub { color: var(--text-secondary); font-size: 1.05rem; max-width: 560px; margin-bottom: 2rem; line-height: 1.8; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 1rem; margin-bottom: 2.5rem; }
.hero-stats { display: flex; flex-wrap: wrap; gap: 2.5rem; padding-top: 2rem; border-top: 1px solid var(--border-amber); }
.hero-stat .num { font-family: var(--font-serif); font-size: 1.8rem; font-weight: 700; color: var(--accent); line-height: 1.2; }
.hero-stat .label { font-size: .8rem; color: var(--text-muted); margin-top: 4px; }

/* Hero Bento cards */
.hero-bento { display: flex; flex-direction: column; gap: 1.2rem; }
.bento-card {
  background: rgba(30,25,20,.85);
  backdrop-filter: blur(4px);
  border: 1px solid var(--border-amber);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
  transition: transform .3s, border-color .3s;
}
.bento-card:hover { transform: translateY(-4px); border-color: var(--border-amber-light); }
.bento-card h3 { font-size: 1.1rem; margin-bottom: 1rem; display: flex; align-items: center; gap: 8px; }
.bento-card h3 .bento-icon { color: var(--accent); font-size: 1.2rem; }
.bento-tea-list { list-style: none; }
.bento-tea-list li { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-bottom: 1px solid rgba(200,146,78,.08); font-size: .9rem; color: var(--text-secondary); }
.bento-tea-list li:last-child { border-bottom: none; }
.bento-tea-list .tea-cat { font-size: .75rem; background: rgba(200,146,78,.12); color: var(--accent); padding: 2px 8px; border-radius: 999px; margin-left: auto; flex-shrink: 0; }
.bento-score { display: flex; align-items: center; gap: 12px; }
.bento-score .score-num { font-family: var(--font-serif); font-size: 2rem; font-weight: 700; color: var(--accent); }
.bento-score .stars { color: var(--accent); font-size: 1rem; letter-spacing: 2px; }
.bento-score .score-label { font-size: .8rem; color: var(--text-muted); }
.bento-score .score-total { font-size: .75rem; color: var(--text-muted); margin-top: 4px; }

/* Features */
.features { background: var(--bg-primary); position: relative; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.8rem; }
.feature-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-amber);
  border-radius: var(--radius-card);
  padding: 2rem 1.8rem;
  overflow: hidden;
  transition: transform .4s, border-color .4s, box-shadow .4s;
}
.feature-card::before {
  content: "";
  position: absolute;
  top: -30px; right: -30px;
  width: 120px; height: 120px;
  background: radial-gradient(circle, rgba(200,146,78,.2), transparent 60%);
  transition: transform .4s;
}
.feature-card:hover { transform: translateY(-6px); border-color: var(--border-amber-light); box-shadow: var(--shadow-hover); }
.feature-card:hover::before { transform: scale(1.3); }
.feature-num { font-family: var(--font-serif); font-size: 2.2rem; font-weight: 700; color: transparent; -webkit-text-stroke: 1px var(--accent); margin-bottom: 1rem; display: block; }
.feature-icon { font-size: 1.6rem; color: var(--accent); margin-bottom: 1rem; }
.feature-card h3 { font-size: 1.2rem; margin-bottom: .8rem; }
.feature-card p { color: var(--text-secondary); font-size: .9rem; margin-bottom: 1.2rem; }
.feature-more { display: inline-flex; align-items: center; gap: 6px; color: var(--accent); font-size: .85rem; font-weight: 500; }
.feature-more .arrow { transition: transform .3s; display: inline-block; }
.feature-more:hover .arrow { transform: translateX(4px); }

/* Guarantee strip */
.guarantee { padding: 2.5rem 0; background: var(--bg-secondary); border-top: 1px solid var(--border-amber); border-bottom: 1px solid var(--border-amber); }
.guarantee-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }
.guarantee-item { display: flex; align-items: center; gap: 1rem; }
.guarantee-item .g-icon { width: 46px; height: 46px; border-radius: 12px; background: rgba(200,146,78,.1); border: 1px solid var(--border-amber); display: flex; align-items: center; justify-content: center; color: var(--accent); font-size: 1.3rem; flex-shrink: 0; }
.guarantee-item .g-text h4 { font-size: .95rem; margin-bottom: 2px; }
.guarantee-item .g-text p { font-size: .78rem; color: var(--text-muted); }

/* Scenes / showcase */
.scenes { background: var(--bg-primary); }
.scene-showcase {
  background: var(--bg-secondary);
  border: 1px solid var(--border-amber);
  border-radius: 20px;
  padding: clamp(1.5rem, 4vw, 3rem);
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 3rem;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.scene-showcase::after {
  content: "";
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 300px; height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: .5;
}
.scene-visual { position: relative; min-height: 340px; }
.scene-img {
  position: absolute;
  border-radius: 14px;
  border: 2px solid rgba(200,146,78,.25);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: transform .4s;
}
.scene-img img { width: 100%; height: 100%; object-fit: cover; }
.scene-img-1 { width: 70%; height: 240px; top: 0; left: 0; z-index: 3; }
.scene-img-2 { width: 55%; height: 180px; top: 90px; left: 30%; z-index: 2; }
.scene-img-3 { width: 40%; height: 140px; top: 200px; left: 5%; z-index: 1; }
.scene-img:hover { transform: scale(1.02); z-index: 5; }
.scene-card-label { position: absolute; bottom: 8px; left: 8px; background: rgba(14,11,8,.85); padding: 4px 12px; border-radius: 999px; font-size: .75rem; color: var(--accent); border: 1px solid var(--border-amber); }
.scene-info h2 { font-size: clamp(1.5rem, 2.8vw, 2.25rem); margin-bottom: 1rem; }
.scene-info > p { color: var(--text-secondary); font-size: .95rem; margin-bottom: 1.8rem; line-height: 1.8; }
.time-cards { display: flex; flex-direction: column; gap: .8rem; margin-bottom: 2rem; }
.time-card {
  display: flex; align-items: center; gap: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-amber);
  border-radius: 12px;
  padding: .9rem 1.2rem;
  transition: border-color .3s, background .3s;
}
.time-card:hover { border-color: var(--border-amber-light); background: #2A2119; }
.time-card .t-time { font-family: var(--font-serif); font-size: .85rem; font-weight: 600; color: var(--accent); flex-shrink: 0; min-width: 100px; }
.time-card .t-title { font-size: .9rem; color: var(--text-primary); flex-shrink: 0; }
.time-card .t-desc { font-size: .8rem; color: var(--text-muted); margin-left: auto; text-align: right; }

/* Reviews */
.reviews { background: var(--bg-secondary); }
.reviews-top { display: flex; align-items: center; gap: 2rem; flex-wrap: wrap; margin-bottom: 3rem; }
.rating-badge { display: flex; align-items: center; gap: 1rem; padding: 1rem 1.8rem; border: 1px solid var(--border-amber-light); border-radius: 999px; background: rgba(200,146,78,.08); }
.rating-badge .rating-num { font-family: var(--font-serif); font-size: 2rem; font-weight: 700; color: var(--accent); }
.rating-badge .stars { color: var(--accent); font-size: .95rem; letter-spacing: 2px; }
.rating-badge .rating-total { font-size: .8rem; color: var(--text-muted); }
.reviews-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.8rem; }
.review-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-amber);
  border-radius: var(--radius-card);
  padding: 1.8rem;
  transition: transform .3s, border-color .3s, box-shadow .3s;
}
.review-card:hover { transform: translateY(-4px); border-color: var(--border-amber-light); box-shadow: var(--shadow-hover); }
.review-head { display: flex; align-items: center; gap: 12px; margin-bottom: 1rem; }
.review-avatar { width: 42px; height: 42px; border-radius: 50%; background: linear-gradient(135deg, var(--accent-light), var(--accent-dark)); display: flex; align-items: center; justify-content: center; font-weight: 700; color: #1A1512; font-size: 1rem; }
.review-name { font-size: .9rem; font-weight: 500; color: var(--text-primary); }
.review-date { font-size: .75rem; color: var(--text-muted); }
.review-stars { color: var(--accent); font-size: .8rem; letter-spacing: 1px; margin-bottom: .8rem; }
.review-text { font-size: .88rem; color: var(--text-secondary); line-height: 1.75; }

/* Topics */
.topics { background: var(--bg-primary); }
.topics-cloud { display: flex; flex-wrap: wrap; gap: .9rem; }
.topic-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: .6em 1.3em;
  border-radius: 999px;
  border: 1px solid var(--border-amber);
  background: rgba(200,146,78,.06);
  color: var(--text-secondary);
  font-size: .85rem;
  transition: all .3s;
}
.topic-tag:hover { color: var(--accent); border-color: var(--accent); background: rgba(200,146,78,.12); transform: translateY(-2px); }
.topic-tag .count { font-size: .75rem; color: var(--text-muted); }

/* News */
.news { background: var(--bg-secondary); }
.news-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.news-feature-list { display: flex; flex-direction: column; gap: 1.8rem; }
.news-feature-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border-amber);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: transform .4s, border-color .4s, box-shadow .4s;
}
.news-feature-card:hover { transform: translateY(-4px); border-color: var(--border-amber-light); box-shadow: var(--shadow-hover); }
.news-feature-card .cover { position: relative; aspect-ratio: 16 / 8; overflow: hidden; }
.news-feature-card .cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease-out; }
.news-feature-card:hover .cover img { transform: scale(1.03); }
.news-feature-card .cover::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(20,16,12,.6), transparent 60%); }
.news-badge { position: absolute; top: 12px; left: 12px; z-index: 2; background: rgba(20,16,12,.85); color: var(--accent); font-size: .75rem; padding: 4px 12px; border-radius: 999px; border: 1px solid var(--border-amber); }
.news-feature-card .body { padding: 1.2rem 1.4rem 1.4rem; }
.news-feature-card .body h3 { font-size: 1.1rem; margin-bottom: .5rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; line-height: 1.5; }
.news-feature-card .body p { color: var(--text-secondary); font-size: .85rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: .8rem; }
.news-meta { display: flex; align-items: center; gap: 8px; font-size: .78rem; color: var(--text-muted); }
.news-side-list { display: flex; flex-direction: column; gap: .6rem; }
.news-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .9rem 1.1rem;
  background: rgba(20,16,12,.5);
  border: 1px solid transparent;
  border-radius: 10px;
  transition: background .3s, border-color .3s, transform .3s;
}
.news-list-item:hover { background: var(--bg-card); border-color: var(--border-amber); transform: translateX(4px); }
.news-list-title { font-size: .9rem; color: var(--text-primary); flex: 1; display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }
.news-list-time { font-size: .75rem; color: var(--text-muted); flex-shrink: 0; }
.news-empty {
  background: rgba(20,16,12,.4);
  border: 1px dashed var(--border-amber);
  border-radius: var(--radius-card);
  padding: 3rem 2rem;
  text-align: center;
}
.news-empty .empty-icon { font-size: 2rem; margin-bottom: 1rem; }
.news-empty p { color: var(--text-secondary); font-size: .9rem; }
.news-empty span { display: block; font-size: .8rem; color: var(--text-muted); margin-top: .3rem; }

/* FAQ */
.faq { background: var(--bg-primary); }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border-amber);
  border-radius: 12px;
  margin-bottom: 1rem;
  overflow: hidden;
  transition: border-color .3s;
}
.faq-item:hover { border-color: var(--border-amber-light); }
.faq-item summary {
  padding: 1.2em 1.4em;
  font-size: .95rem;
  font-weight: 500;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--text-primary);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-icon { width: 20px; height: 20px; border-radius: 50%; background: rgba(200,146,78,.12); border: 1px solid var(--border-amber); display: flex; align-items: center; justify-content: center; color: var(--accent); font-size: .8rem; transition: transform .35s; flex-shrink: 0; }
.faq-item[open] .faq-icon { transform: rotate(45deg); background: var(--accent); color: #1A1512; }
.faq-item .faq-answer { padding: 0 1.4em 1.4em; color: var(--text-secondary); font-size: .88rem; line-height: 1.85; }

/* Contact */
.contact { background: linear-gradient(180deg, var(--bg-secondary), var(--bg-primary)); }
.contact-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; }
.contact-info h2 { font-size: clamp(1.5rem, 2.8vw, 2.25rem); margin-bottom: 1rem; }
.contact-info p { color: var(--text-secondary); font-size: .95rem; margin-bottom: 2rem; line-height: 1.8; }
.contact-methods { display: flex; flex-direction: column; gap: 1rem; }
.contact-method { display: flex; align-items: center; gap: 12px; padding: 1rem 1.2rem; background: var(--bg-card); border: 1px solid var(--border-amber); border-radius: 12px; }
.contact-method .c-icon { width: 42px; height: 42px; border-radius: 10px; background: rgba(200,146,78,.1); display: flex; align-items: center; justify-content: center; color: var(--accent); font-size: 1.2rem; flex-shrink: 0; }
.contact-method .c-label { font-size: .8rem; color: var(--text-muted); }
.contact-method .c-value { font-size: .95rem; color: var(--text-primary); font-weight: 500; }
.contact-form { background: var(--bg-card); border: 1px solid var(--border-amber); border-radius: 18px; padding: 2rem; }
.contact-form h3 { font-size: 1.2rem; margin-bottom: 1.5rem; }
.form-group { margin-bottom: 1.2rem; }
.form-group label { display: block; font-size: .82rem; color: var(--text-secondary); margin-bottom: .5rem; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: .75em 1em;
  background: var(--bg-primary);
  border: 1px solid rgba(168,153,138,.3);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: .92rem;
  transition: border-color .3s, box-shadow .3s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(200,146,78,.15);
  outline: none;
}
.form-group textarea { resize: vertical; min-height: 90px; }
.form-group select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23A8998A' stroke-width='1.5' fill='none'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 1em center; }
.form-submit { width: 100%; margin-top: .5rem; }

/* Footer */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border-amber);
  padding: 3.5rem 0 2rem;
}
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 2.5rem; margin-bottom: 2.5rem; }
.footer-brand .brand { margin-bottom: 1rem; }
.footer-brand p { color: var(--text-muted); font-size: .85rem; line-height: 1.75; max-width: 300px; }
.footer-col h4 { font-size: .95rem; margin-bottom: 1rem; color: var(--text-primary); }
.footer-col a { display: block; color: var(--text-secondary); font-size: .85rem; padding: 4px 0; transition: color .3s, transform .3s; }
.footer-col a:hover { color: var(--accent); transform: translateX(3px); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; padding-top: 2rem; border-top: 1px solid rgba(200,146,78,.1); }
.footer-copy { color: var(--text-muted); font-size: .8rem; }
.footer-back { color: var(--text-muted); font-size: .8rem; display: inline-flex; align-items: center; gap: 6px; }
.footer-back:hover { color: var(--accent); }

/* Float CTA */
.float-cta {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translate(-50%, 120%);
  z-index: 90;
  display: flex;
  align-items: center;
  gap: 1.2rem;
  background: rgba(20,16,12,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-amber-light);
  border-radius: 12px;
  padding: .75rem 1.25rem;
  box-shadow: 0 12px 40px rgba(0,0,0,.5);
  transition: transform .35s ease, opacity .35s ease;
  max-width: calc(100vw - 2rem);
  width: auto;
}
.float-cta.show { transform: translate(-50%, 0); }
.float-cta p { font-size: .9rem; color: var(--text-primary); white-space: nowrap; }
.float-cta .btn { padding: .55em 1.2em; font-size: .85rem; border-radius: 8px; flex-shrink: 0; }
.float-close { background: none; border: none; color: var(--text-muted); font-size: .9rem; cursor: pointer; padding: 4px; line-height: 1; transition: color .3s; }
.float-close:hover { color: var(--text-primary); }

/* Mobile tab */
.mobile-tab {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 120;
  height: calc(56px + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom);
  background: rgba(20,16,12,.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--border-amber);
}
.mobile-tab-inner { display: flex; height: 100%; align-items: center; justify-content: space-around; }
.mobile-tab-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  color: var(--text-muted);
  font-size: .72rem;
  padding: 6px 12px;
  border-radius: 8px;
  transition: color .3s, transform .3s;
}
.mobile-tab-item svg { width: 20px; height: 20px; }
.mobile-tab-item:hover { color: var(--text-secondary); }
.mobile-tab-item.active { color: var(--accent); }
.mobile-tab-item.active { transform: translateY(-2px); }

/* Mobile adjustments */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .reviews-grid { grid-template-columns: repeat(2, 1fr); }
  .scene-showcase { grid-template-columns: 1fr; gap: 2rem; }
  .scene-visual { min-height: 300px; }
  .contact-wrap { grid-template-columns: 1fr; }
  .guarantee-grid { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 767px) {
  body { padding-bottom: calc(5.5rem + env(safe-area-inset-bottom)); }
  .site-header { height: 64px; }
  .main-nav { display: none; }
  .header-cta .btn { padding: .6em 1.2em; font-size: .85rem; }
  .mobile-tab { display: block; }
  .hero { padding: 110px 0 60px; min-height: auto; }
  .hero-inner { grid-template-columns: 1fr; gap: 2rem; }
  .hero-stats { gap: 1.5rem; }
  .hero-stats .num { font-size: 1.5rem; }
  .features-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .news-wrap { grid-template-columns: 1fr; }
  .scene-visual { min-height: 250px; }
  .scene-img-1 { width: 80%; height: 180px; }
  .scene-img-2 { width: 60%; height: 140px; top: 70px; }
  .scene-img-3 { width: 45%; height: 110px; top: 160px; }
  .guarantee-grid { grid-template-columns: 1fr 1fr; gap: 1rem; }
  .guarantee-item { flex-direction: column; text-align: center; }
  .g-icon { margin-bottom: .4rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .double-col { grid-template-columns: 1fr; }
  .float-cta { bottom: calc(56px + env(safe-area-inset-bottom) + 8px); }
  .float-cta p { font-size: .8rem; max-width: 140px; white-space: normal; }
  .float-cta .btn { padding: .5em 1em; font-size: .8rem; }
  .faq-item summary { font-size: .88rem; }
  .form-submit { font-size: .9rem; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 520px) {
  .hero h1 { font-size: 2rem; }
  .hero-sub { font-size: .92rem; }
  .hero-ctas { flex-direction: column; align-items: stretch; }
  .hero-ctas .btn { width: 100%; }
  .features-grid { grid-template-columns: 1fr; }
  .guarantee-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .news-feature-card .body h3 { font-size: 1rem; }
  .contact-form { padding: 1.5rem; }
  .section-head p { font-size: .85rem; }
  .float-cta { padding: .6em 1em; }
  .float-cta p { max-width: 110px; }
}

/* roulang page: article */
:root {
  --bg-primary: #14100C;
  --bg-secondary: #1A1512;
  --bg-card: #1E1914;
  --bg-card-hover: #241D17;
  --bg-deep: #0E0B08;
  --accent: #C8924E;
  --accent-light: #D9A76B;
  --accent-lighter: #E0B57E;
  --accent-dim: rgba(200,146,78,0.12);
  --accent-border: rgba(200,146,78,0.25);
  --green: #7A9E7E;
  --red: #C05640;
  --text-primary: #ECE5DB;
  --text-secondary: #A8998A;
  --text-muted: #7A6E60;
  --radius-card: 14px;
  --radius-btn: 10px;
  --radius-pill: 999px;
  --shadow-card: 0 8px 24px rgba(0,0,0,0.35);
  --shadow-hover: 0 14px 36px rgba(0,0,0,0.5);
  --transition: 0.3s ease;
  --container-max: 1200px;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  background: var(--bg-primary);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, h5, h6 {
  font-family: "Noto Serif SC", "Songti SC", SimSun, serif;
  line-height: 1.35;
  font-weight: 700;
  color: var(--text-primary);
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.3s ease;
}
a:hover {
  color: var(--accent-light);
}
button, input, textarea {
  font-family: inherit;
  font-size: 1rem;
}
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 68px;
  background: linear-gradient(180deg, rgba(20,16,12,0.88), rgba(20,16,12,0.5) 65%, transparent);
  border-bottom: 1px solid transparent;
  transition: background 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}
.site-header.scrolled {
  background: rgba(20,16,12,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: rgba(200,146,78,0.15);
  box-shadow: 0 4px 24px rgba(0,0,0,0.4);
}
.header-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  height: 68px;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.02em;
  transition: color 0.3s ease;
}
.brand:hover {
  color: var(--accent-light);
}
.brand-icon {
  font-size: 1.5rem;
  line-height: 1;
  filter: drop-shadow(0 0 8px rgba(200,146,78,0.5));
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-left: auto;
}
.main-nav a {
  padding: 0.5rem 0.9rem;
  font-size: 0.925rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 8px;
  position: relative;
  transition: color 0.3s ease;
}
.main-nav a:hover {
  color: var(--accent-light);
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0.9rem;
  right: 0.9rem;
  bottom: 0.2rem;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.main-nav a:hover::after,
.main-nav a.active::after {
  transform: scaleX(1);
}
.main-nav a.active {
  color: var(--accent);
}
.header-cta {
  flex-shrink: 0;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.68rem 1.5rem;
  border-radius: var(--radius-btn);
  font-size: 0.925rem;
  font-weight: 600;
  line-height: 1.2;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.3s ease;
  outline: none;
}
.btn:focus-visible {
  outline: 2px solid var(--accent-light);
  outline-offset: 2px;
}
.btn-primary {
  background: linear-gradient(135deg, #D9A76B, #C8924E);
  color: #1A1512;
  box-shadow: 0 4px 16px rgba(200,146,78,0.25);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #E0B57E, #D9A76B);
  color: #1A1512;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(200,146,78,0.35);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 10px rgba(200,146,78,0.2);
}
.btn-outline {
  background: transparent;
  border-color: rgba(200,146,78,0.45);
  color: var(--accent);
}
.btn-outline:hover {
  background: rgba(200,146,78,0.1);
  border-color: var(--accent);
  color: var(--accent-light);
}
.btn-text {
  background: transparent;
  color: var(--text-secondary);
  padding: 0.65rem 1rem;
}
.btn-text:hover {
  color: var(--accent-light);
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 6.5rem 0 1.2rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.breadcrumb a {
  color: var(--accent);
  transition: color 0.3s ease;
}
.breadcrumb a:hover {
  color: var(--accent-light);
}
.breadcrumb .sep {
  color: var(--text-muted);
  opacity: 0.6;
}
.breadcrumb .current {
  color: var(--text-secondary);
  max-width: 220px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.post-article {
  padding-bottom: 1rem;
}
.post-header {
  max-width: 900px;
  margin: 0 auto;
  padding: 2.5rem 0 2.75rem;
}
.post-badge {
  display: inline-block;
  padding: 0.32rem 0.95rem;
  border-radius: var(--radius-pill);
  background: rgba(200,146,78,0.12);
  border: 1px solid rgba(200,146,78,0.35);
  color: var(--accent-light);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}
.post-title {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.35;
  margin: 1rem 0 1.25rem;
}
.post-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.65rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}
.meta-dot {
  opacity: 0.5;
}
.post-summary {
  border-left: 3px solid var(--accent);
  padding: 0.8rem 0 0.8rem 1.25rem;
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.85;
  background: linear-gradient(90deg, rgba(200,146,78,0.06), transparent);
  border-radius: 0 10px 10px 0;
  margin-bottom: 2.25rem;
}
.post-cover {
  margin: 0;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(200,146,78,0.15);
  box-shadow: var(--shadow-card);
}
.post-cover img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}
.post-cover figcaption {
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-muted);
  padding: 0.6rem 1rem;
  background: var(--bg-secondary);
}
.post-body {
  max-width: 720px;
  margin: 0 auto;
  padding: 1rem 0 3.5rem;
  font-size: 1.0625rem;
  line-height: 1.95;
  color: var(--text-primary);
}
.post-body p {
  margin-bottom: 1.5em;
}
.post-body h2 {
  font-size: clamp(1.4rem, 2.5vw, 1.8rem);
  font-weight: 700;
  margin: 2.5rem 0 1rem;
  padding-left: 0.85rem;
  border-left: 3px solid var(--accent);
}
.post-body h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin: 2rem 0 0.75rem;
  color: var(--accent-light);
}
.post-body h4 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 1.5rem 0 0.5rem;
}
.post-body a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(200,146,78,0.4);
  transition: color 0.3s ease, text-decoration-color 0.3s ease;
}
.post-body a:hover {
  color: var(--accent-lighter);
  text-decoration-color: var(--accent);
}
.post-body ul,
.post-body ol {
  margin: 0 0 1.5em 1.5em;
  padding-left: 0.5rem;
}
.post-body li {
  margin-bottom: 0.5em;
}
.post-body ul li::marker {
  color: var(--accent);
}
.post-body ol li::marker {
  color: var(--accent);
  font-weight: 600;
}
.post-body blockquote {
  border-left: 3px solid var(--accent);
  background: var(--bg-card);
  padding: 1.25rem 1.5rem;
  border-radius: 0 10px 10px 0;
  margin: 1.75rem 0;
  color: var(--text-secondary);
}
.post-body blockquote p:last-child {
  margin-bottom: 0;
}
.post-body img {
  border-radius: 12px;
  margin: 1.5rem 0;
  width: 100%;
  height: auto;
}
.post-body figure {
  margin: 1.75rem 0;
}
.post-body figcaption {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}
.post-body code {
  background: var(--bg-card);
  border: 1px solid rgba(200,146,78,0.15);
  border-radius: 6px;
  padding: 0.15rem 0.4rem;
  font-size: 0.875em;
  font-family: "SFMono-Regular", Consolas, monospace;
  color: var(--accent);
}
.post-body pre {
  background: var(--bg-card);
  border: 1px solid rgba(200,146,78,0.15);
  border-radius: 10px;
  padding: 1.25rem;
  overflow-x: auto;
  margin: 1.5rem 0;
}
.post-body hr {
  border: none;
  border-top: 1px solid rgba(200,146,78,0.15);
  margin: 2.5rem 0;
}
.post-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.75rem 0;
}
.post-body th,
.post-body td {
  border: 1px solid rgba(200,146,78,0.15);
  padding: 0.75rem 1rem;
  text-align: left;
}
.post-body th {
  background: var(--bg-card);
  color: var(--accent-light);
  font-weight: 600;
}
.not-found {
  text-align: center;
  padding: 4rem 2.5rem;
  background: var(--bg-card);
  border: 1px solid rgba(200,146,78,0.15);
  border-radius: 16px;
}
.not-found-icon {
  font-size: 3rem;
  display: block;
  margin-bottom: 1rem;
  opacity: 0.6;
}
.not-found p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}
.post-footer {
  max-width: 720px;
  margin: 0 auto;
  padding: 2.25rem 0 4rem;
  border-top: 1px solid rgba(200,146,78,0.12);
}
.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2rem;
}
.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.32rem 0.95rem;
  font-size: 0.8rem;
  border-radius: var(--radius-pill);
  background: rgba(200,146,78,0.08);
  border: 1px solid rgba(200,146,78,0.25);
  color: var(--accent);
  transition: border-color 0.3s ease, background 0.3s ease;
}
.tag:hover {
  border-color: var(--accent);
  background: rgba(200,146,78,0.15);
}
.post-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.related-section {
  padding: 4rem 0 5rem;
  border-top: 1px solid rgba(200,146,78,0.1);
  background: var(--bg-secondary);
}
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 2rem;
}
.section-title {
  font-size: clamp(1.5rem, 2.8vw, 2rem);
  font-weight: 600;
}
.section-sub {
  color: var(--text-muted);
  font-size: 0.9rem;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.related-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid rgba(200,146,78,0.12);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(200,146,78,0.35);
}
.related-cover {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}
.related-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.related-card:hover .related-cover img {
  transform: scale(1.03);
}
.related-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(20,16,12,0.65));
}
.related-badge {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 1;
  padding: 0.25rem 0.7rem;
  font-size: 0.7rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  background: rgba(200,146,78,0.2);
  border: 1px solid rgba(200,146,78,0.4);
  color: var(--accent-light);
  backdrop-filter: blur(4px);
}
.related-info {
  padding: 1rem 1.1rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}
.related-info h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 3em;
  font-family: "Noto Sans SC", "PingFang SC", sans-serif;
}
.related-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
}
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid rgba(200,146,78,0.12);
  padding: 4rem 0 2.5rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.2fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}
.footer-brand .brand {
  font-size: 1.25rem;
}
.footer-brand p {
  margin-top: 1rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.8;
  max-width: 320px;
}
.footer-col h4 {
  font-size: 0.95rem;
  color: var(--text-primary);
  margin-bottom: 1rem;
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-weight: 600;
}
.footer-col a {
  display: block;
  padding: 0.3rem 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: color 0.3s ease, padding-left 0.3s ease;
}
.footer-col a:hover {
  color: var(--accent-light);
  padding-left: 4px;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(200,146,78,0.08);
  font-size: 0.8rem;
  color: var(--text-muted);
}
.footer-back {
  color: var(--text-muted);
  padding: 0.3rem 0.8rem;
  border-radius: 6px;
  transition: color 0.3s ease;
}
.footer-back:hover {
  color: var(--accent);
}
.bottom-tab {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 90;
  height: calc(56px + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom);
  background: rgba(20,16,12,0.93);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid rgba(200,146,78,0.15);
}
.tab-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 500;
  transition: color 0.3s ease, transform 0.3s ease;
}
.tab-item svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.tab-item.active {
  color: var(--accent);
  transform: translateY(-2px);
}
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .main-nav a {
    padding: 0.5rem 0.7rem;
    font-size: 0.875rem;
  }
}
@media (max-width: 767px) {
  .header-inner {
    padding: 0 1rem;
  }
  .header-cta {
    display: none;
  }
  .main-nav {
    display: none;
  }
  .breadcrumb {
    padding-top: 5.5rem;
    padding-bottom: 0.8rem;
  }
  .post-header {
    padding: 1.8rem 0 2rem;
  }
  .post-title {
    font-size: 1.6rem;
  }
  .post-meta {
    font-size: 0.8rem;
  }
  .post-summary {
    font-size: 0.95rem;
    padding-left: 1rem;
  }
  .post-cover {
    border-radius: 12px;
  }
  .post-body {
    padding: 0.5rem 0 2.5rem;
    font-size: 1rem;
  }
  .post-footer {
    padding: 1.75rem 0 2.5rem;
  }
  .related-section {
    padding: 3rem 0 3.5rem;
  }
  .section-head {
    flex-direction: column;
    gap: 0.4rem;
  }
  .related-grid {
    grid-template-columns: 1fr;
    gap: 1.2rem;
  }
  .related-info h3 {
    min-height: 0;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 0.8rem;
    text-align: center;
  }
  .bottom-tab {
    display: flex;
  }
  .site-footer {
    padding-bottom: calc(6.5rem + env(safe-area-inset-bottom));
  }
}
@media (max-width: 520px) {
  .breadcrumb .current {
    max-width: 160px;
  }
  .post-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 0.6rem;
  }
  .post-actions .btn {
    width: 100%;
  }
  .footer-grid {
    gap: 1.6rem;
  }
}