/* roulang page: index */
:root{
  --bg: #0f0b0c;
  --bg-2: #151013;
  --bg-3: #1c1619;
  --card: rgba(24, 18, 20, .86);
  --card-2: rgba(31, 24, 27, .88);
  --line: rgba(255,255,255,.08);
  --line-2: rgba(255,255,255,.12);
  --text: #f5ede9;
  --muted: #c4b3ab;
  --soft: #9d8c86;
  --accent: #aa5c61;
  --accent-2: #d6b07a;
  --accent-3: #7d3d47;
  --success: #7e9a7a;
  --shadow: 0 18px 40px rgba(0,0,0,.34);
  --shadow-soft: 0 10px 24px rgba(0,0,0,.22);
  --radius: 20px;
  --radius-lg: 26px;
  --radius-sm: 14px;
  --container: 1240px;
  --gap: 24px;
  --gap-lg: 32px;
  --gap-sm: 14px;
  --ease: cubic-bezier(.2,.8,.2,1);
  --header-h: 76px;
}

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

html{
  scroll-behavior:smooth;
  background: var(--bg);
}

body{
  margin:0;
  min-height:100vh;
  color:var(--text);
  font: 16px/1.75 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  background:
    radial-gradient(1200px 500px at 18% 0%, rgba(170,92,97,.14), transparent 55%),
    radial-gradient(900px 460px at 100% 12%, rgba(214,176,122,.08), transparent 50%),
    linear-gradient(180deg, #0f0b0c 0%, #120d0f 35%, #0c090a 100%);
  overflow-x:hidden;
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:
    linear-gradient(rgba(255,255,255,.02), rgba(255,255,255,0)),
    radial-gradient(circle at 1px 1px, rgba(255,255,255,.04) 1px, transparent 0);
  background-size:100% 100%, 18px 18px;
  opacity:.28;
  mix-blend-mode:screen;
  z-index:0;
}

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

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

button,
input,
textarea,
select{
  font:inherit;
}

button{
  border:0;
  background:none;
  color:inherit;
  padding:0;
  cursor:pointer;
}

:focus-visible{
  outline:2px solid rgba(214,176,122,.92);
  outline-offset:3px;
}

::selection{
  background: rgba(170,92,97,.36);
  color: #fff;
}

.page-shell{
  position:relative;
  z-index:1;
}

.container{
  width:min(var(--container), calc(100% - 32px));
  margin:0 auto;
}

.site-header{
  position:sticky;
  top:0;
  z-index:60;
  backdrop-filter: blur(16px);
  background: linear-gradient(180deg, rgba(13,10,11,.86), rgba(13,10,11,.68));
  border-bottom:1px solid rgba(255,255,255,.08);
  transition: padding .24s var(--ease), box-shadow .24s var(--ease), background .24s var(--ease);
}

.site-header.is-scrolled{
  box-shadow: 0 8px 24px rgba(0,0,0,.18);
}

.header-inner{
  height:var(--header-h);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  transition: height .24s var(--ease);
}

.site-header.is-scrolled .header-inner{
  height:68px;
}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
  min-width:0;
}

.brand-mark{
  display:inline-flex;
  align-items:center;
  gap:10px;
  max-width:min(48vw, 480px);
  padding:10px 14px;
  border:1px solid rgba(255,255,255,.1);
  border-radius:999px;
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.04);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  letter-spacing:.02em;
  font-weight:800;
  color:var(--text);
}

.brand-mark::before{
  content:"";
  width:10px;
  height:10px;
  border-radius:50%;
  background: radial-gradient(circle at 30% 30%, #ffd9a4, var(--accent));
  box-shadow: 0 0 0 5px rgba(170,92,97,.12);
  flex:0 0 auto;
}

.brand-sub{
  color:var(--muted);
  font-size:13px;
  letter-spacing:.12em;
  text-transform:uppercase;
  white-space:nowrap;
}

.nav-wrap{
  display:flex;
  align-items:center;
  gap:14px;
}

.site-nav{
  display:flex;
  align-items:center;
  gap:8px;
}

.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  border-radius:999px;
  color:var(--muted);
  border:1px solid transparent;
  transition: transform .18s var(--ease), background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease), box-shadow .18s var(--ease);
}

.nav-link:hover{
  color:var(--text);
  transform:translateY(-1px);
  background: rgba(255,255,255,.04);
  border-color: rgba(255,255,255,.08);
  box-shadow: var(--shadow-soft);
}

.nav-link.active{
  color:#fff;
  background: linear-gradient(180deg, rgba(170,92,97,.26), rgba(125,61,71,.16));
  border-color: rgba(214,176,122,.18);
}

.nav-toggle{
  display:none;
  width:46px;
  height:46px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.1);
  background: rgba(255,255,255,.04);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.05);
  align-items:center;
  justify-content:center;
  gap:4px;
  flex-direction:column;
  transition: transform .18s var(--ease), background .18s var(--ease), border-color .18s var(--ease);
}

.nav-toggle span{
  width:18px;
  height:2px;
  border-radius:999px;
  background: var(--text);
  opacity:.92;
  transition: transform .18s var(--ease), opacity .18s var(--ease);
}

.nav-toggle:hover{
  transform:translateY(-1px);
  background: rgba(255,255,255,.06);
  border-color: rgba(255,255,255,.16);
}

.hero{
  position:relative;
  padding: 30px 0 12px;
}

.hero-inner{
  position:relative;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.08);
  border-radius: calc(var(--radius-lg) + 6px);
  background:
    linear-gradient(120deg, rgba(14,10,11,.92), rgba(18,13,15,.86) 44%, rgba(23,18,20,.92)),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  box-shadow: var(--shadow);
  isolation:isolate;
}

.hero-inner::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(700px 300px at 10% 15%, rgba(170,92,97,.24), transparent 60%),
    radial-gradient(540px 260px at 92% 12%, rgba(214,176,122,.14), transparent 58%),
    linear-gradient(180deg, rgba(8,6,7,.42), rgba(8,6,7,.18));
  pointer-events:none;
}

.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns: 1.02fr .98fr;
  gap: 28px;
  padding: clamp(24px, 4vw, 42px);
  align-items:center;
  min-height: 620px;
}

.hero-copy{
  position:relative;
  z-index:1;
}

.kicker-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:18px;
}

.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:34px;
  padding:0 12px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.1);
  color:#f9f3ef;
  background: rgba(255,255,255,.04);
  font-size:13px;
  line-height:1;
  letter-spacing:.03em;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.04);
}

.badge.accent{
  background: linear-gradient(180deg, rgba(170,92,97,.28), rgba(125,61,71,.18));
  border-color: rgba(214,176,122,.18);
}

.badge.gold{
  background: linear-gradient(180deg, rgba(214,176,122,.18), rgba(214,176,122,.08));
  border-color: rgba(214,176,122,.22);
}

.hero-title{
  margin:0;
  font-size: clamp(38px, 4.6vw, 68px);
  line-height:1.06;
  letter-spacing:-.03em;
  max-width: 12ch;
  text-wrap: balance;
}

.hero-title span{
  display:block;
  color: var(--text);
}

.hero-subtitle{
  margin: 18px 0 0;
  max-width: 52ch;
  color: var(--muted);
  font-size: clamp(16px, 1.35vw, 18px);
  line-height:1.9;
}

.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top: 28px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:48px;
  padding:0 20px;
  border-radius: 16px;
  border:1px solid transparent;
  transition: transform .18s var(--ease), background .18s var(--ease), border-color .18s var(--ease), box-shadow .18s var(--ease), color .18s var(--ease), opacity .18s var(--ease);
  box-shadow: var(--shadow-soft);
  font-weight:700;
  letter-spacing:.02em;
}

.btn:hover{
  transform:translateY(-2px);
}

.btn:active{
  transform:translateY(0);
  opacity:.92;
}

.btn-primary{
  color:#fff;
  background: linear-gradient(180deg, #ba6670 0%, #90424b 100%);
  border-color: rgba(255,255,255,.06);
}

.btn-primary:hover{
  box-shadow: 0 16px 28px rgba(170,92,97,.28);
}

.btn-secondary{
  color: var(--text);
  background: rgba(255,255,255,.03);
  border-color: rgba(255,255,255,.12);
}

.btn-secondary:hover{
  background: rgba(255,255,255,.06);
  border-color: rgba(214,176,122,.24);
}

.btn-ghost{
  color: var(--muted);
  background: transparent;
  border-color: rgba(255,255,255,.1);
  box-shadow:none;
}

.btn-ghost:hover{
  color: var(--text);
  background: rgba(255,255,255,.04);
}

.hero-meta{
  margin-top: 26px;
  display:grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap:12px;
}

.meta-item{
  padding:14px 16px;
  border-radius: 18px;
  border:1px solid rgba(255,255,255,.08);
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.025));
}

.meta-label{
  display:block;
  color: var(--soft);
  font-size: 12px;
  letter-spacing:.12em;
  text-transform:uppercase;
}

.meta-value{
  display:block;
  margin-top:6px;
  color: #fff;
  font-weight:700;
  font-size: 16px;
  line-height:1.35;
}

.hero-visual{
  position:relative;
  z-index:1;
  display:grid;
  gap:14px;
  grid-template-columns: 1.06fr .94fr;
  align-items:stretch;
}

.poster-card{
  position:relative;
  overflow:hidden;
  min-height: 520px;
  border-radius: 28px;
  border:1px solid rgba(255,255,255,.08);
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
  box-shadow: var(--shadow);
  transform: translateY(10px);
}

.poster-card img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(1.02) contrast(1.04);
  transform: scale(1.02);
}

.poster-card::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(180deg, rgba(6,4,5,.1) 0%, rgba(6,4,5,.54) 100%),
    radial-gradient(500px 220px at 20% 20%, rgba(170,92,97,.22), transparent 60%);
  pointer-events:none;
}

.poster-badge{
  position:absolute;
  top:18px;
  left:18px;
  z-index:2;
  padding:10px 13px;
  border-radius:999px;
  background: rgba(10,8,9,.38);
  border:1px solid rgba(255,255,255,.12);
  backdrop-filter: blur(10px);
  color:#fff;
  font-size:13px;
  box-shadow: var(--shadow-soft);
}

.poster-info{
  position:absolute;
  left:18px;
  right:18px;
  bottom:18px;
  z-index:2;
  display:grid;
  gap:10px;
}

.poster-title{
  margin:0;
  font-size: 22px;
  line-height:1.35;
  color:#fff;
  text-shadow:0 2px 18px rgba(0,0,0,.26);
}

.poster-desc{
  margin:0;
  color: rgba(245,237,233,.84);
  font-size: 14px;
  line-height:1.8;
}

.visual-stack{
  display:grid;
  gap:14px;
  align-content:space-between;
}

.stack-card{
  padding:18px;
  border-radius: 24px;
  border:1px solid rgba(255,255,255,.08);
  background: linear-gradient(180deg, rgba(24,18,20,.92), rgba(17,13,14,.92));
  box-shadow: var(--shadow-soft);
}

.stack-card h3{
  margin:0;
  font-size:18px;
  line-height:1.4;
}

.stack-card p{
  margin:8px 0 0;
  color:var(--muted);
  font-size:14px;
  line-height:1.8;
}

.stack-metrics{
  display:grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap:12px;
  margin-top:14px;
}

.metric{
  padding:14px;
  border-radius: 18px;
  background: rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
}

.metric strong{
  display:block;
  font-size:22px;
  line-height:1;
  color:#fff;
}

.metric span{
  display:block;
  margin-top:8px;
  color:var(--muted);
  font-size:13px;
}

.quick-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}

.quick-tag{
  display:inline-flex;
  align-items:center;
  min-height:34px;
  padding:0 12px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.03);
  color: var(--muted);
  font-size:13px;
}

.section{
  padding: 20px 0;
}

.section-pad{
  padding-top: 42px;
}

.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:18px;
  margin-bottom:18px;
}

.section-head .copy{
  max-width: 760px;
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-bottom:10px;
  color: var(--accent-2);
  font-size: 12px;
  letter-spacing:.18em;
  text-transform:uppercase;
}

.eyebrow::before{
  content:"";
  width:28px;
  height:1px;
  background: linear-gradient(90deg, rgba(214,176,122,.85), rgba(214,176,122,0));
}

.section-title{
  margin:0;
  font-size: clamp(24px, 2.5vw, 34px);
  line-height:1.2;
  letter-spacing:-.02em;
}

.section-desc{
  margin:12px 0 0;
  color:var(--muted);
  line-height:1.85;
  max-width: 70ch;
}

.trust-band{
  display:grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap:14px;
  margin-top: 18px;
}

.trust-item{
  position:relative;
  overflow:hidden;
  padding:18px 18px 16px;
  border-radius: 20px;
  border:1px solid rgba(255,255,255,.08);
  background:
    linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.03));
  box-shadow: var(--shadow-soft);
}

.trust-item::after{
  content:"";
  position:absolute;
  inset:auto -24px -24px auto;
  width:120px;
  height:120px;
  border-radius:50%;
  background: radial-gradient(circle, rgba(170,92,97,.18), transparent 70%);
  pointer-events:none;
}

.trust-item strong{
  display:block;
  font-size:18px;
  line-height:1.3;
}

.trust-item span{
  display:block;
  margin-top:8px;
  color:var(--muted);
  font-size:14px;
  line-height:1.75;
}

.featured-grid{
  display:grid;
  grid-template-columns: 1.4fr .9fr;
  gap:18px;
}

.feature-card{
  position:relative;
  overflow:hidden;
  border-radius: 26px;
  border:1px solid rgba(255,255,255,.08);
  background: var(--card);
  box-shadow: var(--shadow-soft);
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
}

.feature-card:hover{
  transform: translateY(-4px);
  border-color: rgba(214,176,122,.2);
  box-shadow: 0 22px 36px rgba(0,0,0,.34);
}

.feature-media{
  position:relative;
  overflow:hidden;
  aspect-ratio: 4 / 5;
}

.feature-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transform: scale(1.01);
  transition: transform .45s var(--ease), filter .45s var(--ease);
}

.feature-card:hover .feature-media img{
  transform: scale(1.05);
  filter: brightness(1.06);
}

.feature-media::after{
  content:"";
  position:absolute;
  inset:0;
  background: linear-gradient(180deg, rgba(8,6,7,.06) 0%, rgba(8,6,7,.62) 100%);
}

.feature-body{
  padding:18px;
}

.feature-topline{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:10px;
}

.pill{
  display:inline-flex;
  align-items:center;
  min-height:28px;
  padding:0 10px;
  border-radius:999px;
  background: rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);
  color: var(--muted);
  font-size:12px;
  line-height:1;
}

.feature-title{
  margin:0;
  font-size:20px;
  line-height:1.45;
}

.feature-desc{
  margin:10px 0 0;
  color:var(--muted);
  font-size:14px;
  line-height:1.85;
  display:-webkit-box;
  -webkit-box-orient:vertical;
  -webkit-line-clamp:2;
  overflow:hidden;
}

.feature-meta{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:14px;
  color:var(--soft);
  font-size:13px;
}

.feature-meta span{
  display:inline-flex;
  align-items:center;
  gap:6px;
}

.feature-side{
  display:grid;
  gap:18px;
}

.side-card{
  display:grid;
  grid-template-columns: 110px 1fr;
  gap:14px;
  overflow:hidden;
  border-radius: 24px;
  border:1px solid rgba(255,255,255,.08);
  background: var(--card);
  box-shadow: var(--shadow-soft);
  transition: transform .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
}

.side-card:hover{
  transform: translateY(-4px);
  border-color: rgba(214,176,122,.2);
  box-shadow: 0 22px 36px rgba(0,0,0,.32);
}

.side-media{
  position:relative;
  min-height: 100%;
  overflow:hidden;
}

.side-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  min-height:100%;
  transition: transform .45s var(--ease);
}

.side-card:hover .side-media img{
  transform: scale(1.05);
}

.side-media::after{
  content:"";
  position:absolute;
  inset:0;
  background: linear-gradient(180deg, rgba(8,6,7,.1), rgba(8,6,7,.48));
}

.side-body{
  padding:16px 16px 16px 0;
}

.side-body h3{
  margin:0;
  font-size:18px;
  line-height:1.45;
}

.side-body p{
  margin:8px 0 0;
  color:var(--muted);
  font-size:14px;
  line-height:1.8;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}

.side-meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:12px;
  color:var(--soft);
  font-size:12px;
}

.info-strip{
  border:1px solid rgba(255,255,255,.08);
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(25,19,21,.92), rgba(18,14,15,.92));
  box-shadow: var(--shadow-soft);
  overflow:hidden;
}

.info-grid{
  display:grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap:0;
}

.info-cell{
  padding:20px 18px;
  border-right:1px solid rgba(255,255,255,.06);
}

.info-cell:last-child{
  border-right:0;
}

.info-cell strong{
  display:block;
  font-size:16px;
  line-height:1.35;
}

.info-cell p{
  margin:8px 0 0;
  color:var(--muted);
  font-size:14px;
  line-height:1.8;
}

.latest-wrap{
  margin-top: 4px;
}

.latest-list{
  display:grid;
  gap:14px;
}

.latest-item{
  display:grid;
  grid-template-columns: auto 1fr;
  gap:14px;
  align-items:start;
  padding:18px;
  border-radius: 22px;
  border:1px solid rgba(255,255,255,.08);
  background: linear-gradient(180deg, rgba(24,18,20,.9), rgba(18,14,15,.92));
  box-shadow: var(--shadow-soft);
  transition: transform .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease);
}

.latest-item:hover{
  transform: translateY(-3px);
  border-color: rgba(214,176,122,.2);
  box-shadow: 0 18px 34px rgba(0,0,0,.32);
  background: linear-gradient(180deg, rgba(28,21,24,.95), rgba(18,14,15,.94));
}

.latest-icon{
  width:52px;
  height:52px;
  border-radius:18px;
  display:grid;
  place-items:center;
  background: linear-gradient(180deg, rgba(170,92,97,.26), rgba(125,61,71,.14));
  border:1px solid rgba(214,176,122,.18);
  color:#fff;
  flex:0 0 auto;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.05);
}

.latest-content{
  min-width:0;
}

.latest-top{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  align-items:center;
  margin-bottom:8px;
}

.latest-title{
  margin:0;
  font-size:18px;
  line-height:1.55;
  letter-spacing:-.01em;
}

.latest-desc{
  margin:8px 0 0;
  color:var(--muted);
  font-size:14px;
  line-height:1.85;
  display:-webkit-box;
  -webkit-box-orient:vertical;
  -webkit-line-clamp:2;
  overflow:hidden;
}

.latest-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:12px;
  color:var(--soft);
  font-size:13px;
}

.latest-meta span{
  display:inline-flex;
  align-items:center;
  gap:6px;
}

.empty-state{
  padding:26px 18px;
  border-radius: 22px;
  border:1px dashed rgba(255,255,255,.12);
  background: rgba(255,255,255,.03);
  color:var(--muted);
  text-align:center;
}

.note-grid{
  display:grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap:14px;
}

.note-card{
  padding:18px;
  border-radius: 22px;
  border:1px solid rgba(255,255,255,.08);
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.025));
  box-shadow: var(--shadow-soft);
}

.note-card h3{
  margin:0;
  font-size:18px;
  line-height:1.45;
}

.note-card p{
  margin:10px 0 0;
  color:var(--muted);
  font-size:14px;
  line-height:1.9;
}

.note-list{
  margin:14px 0 0;
  padding:0;
  list-style:none;
  display:grid;
  gap:10px;
}

.note-list li{
  position:relative;
  padding-left:18px;
  color:#e7ddd8;
  font-size:14px;
  line-height:1.7;
}

.note-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:.78em;
  width:7px;
  height:7px;
  border-radius:50%;
  background: linear-gradient(180deg, #d7b17a, #a65b61);
  box-shadow: 0 0 0 4px rgba(214,176,122,.08);
}

.faq-wrap{
  display:grid;
  gap:12px;
}

.faq-item{
  overflow:hidden;
  border-radius: 20px;
  border:1px solid rgba(255,255,255,.08);
  background: linear-gradient(180deg, rgba(24,18,20,.86), rgba(18,14,15,.92));
  box-shadow: var(--shadow-soft);
}

.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:18px 18px;
  font-weight:700;
  line-height:1.6;
  color:#fff;
}

.faq-item summary::-webkit-details-marker{
  display:none;
}

.faq-item summary::after{
  content:"+";
  width:34px;
  height:34px;
  display:grid;
  place-items:center;
  border-radius:12px;
  background: rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);
  color:var(--muted);
  transition: transform .2s var(--ease), background .2s var(--ease), color .2s var(--ease);
  flex:0 0 auto;
}

.faq-item[open] summary::after{
  content:"−";
  background: rgba(170,92,97,.2);
  color:#fff;
}

.faq-body{
  padding: 0 18px 18px;
  color:var(--muted);
  font-size:14px;
  line-height:1.9;
}

.faq-body p{
  margin:0;
}

.cta-card{
  position:relative;
  overflow:hidden;
  padding: clamp(22px, 4vw, 34px);
  border-radius: 28px;
  border:1px solid rgba(255,255,255,.08);
  background:
    radial-gradient(850px 260px at 16% 10%, rgba(170,92,97,.18), transparent 58%),
    radial-gradient(600px 240px at 96% 0%, rgba(214,176,122,.1), transparent 54%),
    linear-gradient(180deg, rgba(23,18,20,.96), rgba(16,12,13,.94));
  box-shadow: var(--shadow);
}

.cta-grid{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap:20px;
  align-items:center;
}

.cta-card h2{
  margin:0;
  font-size: clamp(24px, 3vw, 38px);
  line-height:1.2;
}

.cta-card p{
  margin:12px 0 0;
  max-width: 60ch;
  color:var(--muted);
  line-height:1.9;
}

.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:flex-end;
}

.cta-note{
  margin-top:12px;
  color:var(--soft);
  font-size:13px;
  line-height:1.8;
}

.site-footer{
  padding: 24px 0 42px;
}

.footer-shell{
  border-top:1px solid rgba(255,255,255,.08);
  padding-top:26px;
}

.footer-grid{
  display:grid;
  grid-template-columns: 1.2fr .8fr .7fr;
  gap:20px;
}

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

.footer-brand strong{
  font-size:18px;
  line-height:1.5;
}

.footer-brand p{
  margin:0;
  color:var(--muted);
  line-height:1.85;
  max-width: 44ch;
}

.footer-links{
  display:grid;
  gap:10px;
}

.footer-links a{
  display:inline-flex;
  align-items:center;
  gap:8px;
  width:max-content;
  color:var(--muted);
  transition: color .18s var(--ease), transform .18s var(--ease);
}

.footer-links a:hover{
  color:#fff;
  transform: translateX(2px);
}

.footer-meta{
  display:grid;
  gap:12px;
  justify-items:start;
}

.copyline{
  color:var(--soft);
  font-size:13px;
  line-height:1.8;
}

.age-note{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 12px;
  border-radius: 14px;
  background: rgba(214,176,122,.08);
  border:1px solid rgba(214,176,122,.12);
  color:#f1dbc0;
  font-size:13px;
}

.to-top{
  position:fixed;
  right:18px;
  bottom:18px;
  z-index:60;
  width:48px;
  height:48px;
  border-radius: 16px;
  display:grid;
  place-items:center;
  background: linear-gradient(180deg, rgba(170,92,97,.9), rgba(125,61,71,.96));
  color:#fff;
  border:1px solid rgba(255,255,255,.08);
  box-shadow: 0 16px 28px rgba(0,0,0,.28);
  transition: transform .18s var(--ease), filter .18s var(--ease), opacity .18s var(--ease);
}

.to-top:hover{
  transform: translateY(-3px);
  filter:brightness(1.05);
}

.to-top:active{
  transform:translateY(0);
}

@media (max-width: 1200px){
  .hero-grid{
    min-height:0;
    grid-template-columns: 1fr;
  }
  .hero-visual{
    grid-template-columns: 1fr 1fr;
  }
  .poster-card{
    min-height: 470px;
  }
  .featured-grid{
    grid-template-columns: 1fr;
  }
  .feature-side{
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .side-card{
    grid-template-columns: 120px 1fr;
  }
  .note-grid,
  .info-grid,
  .trust-band,
  .cta-grid,
  .footer-grid{
    grid-template-columns: 1fr 1fr;
  }
  .footer-grid{
    row-gap: 18px;
  }
}

@media (max-width: 992px){
  .hero{
    padding-top: 22px;
  }
  .hero-grid{
    padding: 24px;
  }
  .hero-meta{
    grid-template-columns: 1fr;
  }
  .hero-visual{
    grid-template-columns: 1fr;
  }
  .poster-card{
    min-height: 400px;
    transform:none;
  }
  .visual-stack{
    grid-template-columns: 1fr;
  }
  .info-grid,
  .trust-band,
  .note-grid,
  .cta-grid,
  .footer-grid{
    grid-template-columns: 1fr;
  }
  .info-cell{
    border-right:0;
    border-bottom:1px solid rgba(255,255,255,.06);
  }
  .info-cell:last-child{
    border-bottom:0;
  }
  .cta-actions{
    justify-content:flex-start;
  }
  .site-nav{
    display:none;
  }
  .nav-toggle{
    display:inline-flex;
  }
  .site-header.menu-open .site-nav{
    display:flex;
  }
}

@media (max-width: 768px){
  .container{
    width:min(var(--container), calc(100% - 22px));
  }
  .header-inner{
    height:70px;
  }
  .site-header.is-scrolled .header-inner{
    height:64px;
  }
  .brand-mark{
    max-width: 64vw;
    padding:9px 12px;
  }
  .brand-sub{
    display:none;
  }
  .site-nav{
    position:fixed;
    left:11px;
    right:11px;
    top:78px;
    z-index:70;
    padding:12px;
    border-radius: 22px;
    border:1px solid rgba(255,255,255,.08);
    background: rgba(15,11,12,.96);
    box-shadow: var(--shadow);
    flex-direction:column;
    align-items:stretch;
    gap:8px;
  }
  .site-header.is-scrolled .site-nav{
    top:70px;
  }
  .site-header.menu-open .site-nav{
    display:flex;
  }
  .nav-link{
    width:100%;
    justify-content:center;
  }
  .hero-title{
    max-width: none;
  }
  .hero-subtitle{
    max-width:none;
  }
  .latest-item{
    grid-template-columns: 1fr;
  }
  .latest-icon{
    width:46px;
    height:46px;
  }
  .feature-side{
    grid-template-columns: 1fr;
  }
  .side-card{
    grid-template-columns: 104px 1fr;
  }
  .section-head{
    flex-direction:column;
    align-items:flex-start;
  }
  .to-top{
    right:14px;
    bottom:14px;
  }
}

@media (max-width: 520px){
  .hero-grid{
    padding: 18px 16px 18px;
    gap: 18px;
  }
  .hero-title{
    font-size: clamp(30px, 8vw, 40px);
  }
  .hero-subtitle{
    font-size:15px;
    line-height:1.85;
  }
  .hero-actions .btn{
    width:100%;
  }
  .btn{
    min-height:46px;
  }
  .poster-card{
    min-height: 340px;
    border-radius: 22px;
  }
  .poster-title{
    font-size: 18px;
  }
  .stack-card,
  .feature-body,
  .side-body,
  .note-card,
  .cta-card,
  .latest-item,
  .faq-item summary,
  .faq-body{
    padding-left:16px;
    padding-right:16px;
  }
  .feature-body{
    padding-top:16px;
    padding-bottom:16px;
  }
  .side-body{
    padding-left:0;
    padding-right:16px;
  }
  .cta-actions .btn{
    width:100%;
  }
  .faq-item summary{
    font-size:15px;
  }
  .latest-title{
    font-size:16px;
  }
  .section{
    padding: 16px 0;
  }
}

@media (prefers-reduced-motion: reduce){
  html{
    scroll-behavior:auto;
  }
  *,
  *::before,
  *::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
}

/* roulang page: article */
:root{
    --bg: #0f0b0c;
    --bg-2: #151013;
    --bg-3: #1c1619;
    --card: rgba(24, 18, 20, .86);
    --card-2: rgba(31, 24, 27, .88);
    --line: rgba(255,255,255,.08);
    --line-2: rgba(255,255,255,.12);
    --text: #f5ede9;
    --muted: #c4b3ab;
    --soft: #9d8c86;
    --accent: #aa5c61;
    --accent-2: #d6b07a;
    --accent-3: #7d3d47;
    --success: #7e9a7a;
    --shadow: 0 18px 40px rgba(0,0,0,.34);
    --shadow-soft: 0 10px 24px rgba(0,0,0,.22);
    --radius: 20px;
    --radius-lg: 26px;
    --radius-sm: 14px;
    --container: 1240px;
    --gap: 24px;
    --gap-lg: 32px;
    --gap-sm: 14px;
    --ease: cubic-bezier(.2,.8,.2,1);
    --header-h: 76px;
  }

  html{
    scroll-behavior:smooth;
    background: var(--bg);
  }
  body{
    margin:0;
    min-height:100vh;
    color:var(--text);
    font: 16px/1.75 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
    background:
      radial-gradient(1200px 500px at 18% 0%, rgba(170,92,97,.14), transparent 55%),
      radial-gradient(900px 460px at 100% 12%, rgba(214,176,122,.08), transparent 50%),
      linear-gradient(180deg, #0f0b0c 0%, #120d0f 35%, #0c090a 100%);
    overflow-x:hidden;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    pointer-events:none;
    background:
      linear-gradient(rgba(255,255,255,.02), rgba(255,255,255,0)),
      radial-gradient(circle at 1px 1px, rgba(255,255,255,.04) 1px, transparent 0);
    background-size:100% 100%, 18px 18px;
    opacity:.28;
    mix-blend-mode:screen;
    z-index:0;
  }

  img{
    max-width:100%;
    display:block;
  }
  a{
    color:inherit;
    text-decoration:none;
  }
  button,
  input,
  textarea,
  select{
    font:inherit;
  }
  button{
    border:0;
    background:none;
    color:inherit;
    padding:0;
    cursor:pointer;
  }
  *{
    box-sizing:border-box;
  }
  :focus-visible{
    outline:2px solid rgba(214,176,122,.95);
    outline-offset:3px;
  }

  .container{
    width:min(var(--container), calc(100% - 32px));
    margin:0 auto;
  }

  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    backdrop-filter: blur(16px);
    background: linear-gradient(180deg, rgba(13,10,11,.86), rgba(13,10,11,.68));
    border-bottom:1px solid rgba(255,255,255,.08);
    transition: padding .24s var(--ease), box-shadow .24s var(--ease), background .24s var(--ease);
  }
  .site-header.is-scrolled{
    box-shadow: 0 8px 24px rgba(0,0,0,.18);
  }
  .header-inner{
    height:var(--header-h);
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    transition: height .24s var(--ease);
  }
  .site-header.is-scrolled .header-inner{
    height:68px;
  }
  .brand{
    display:flex;
    align-items:center;
    gap:12px;
    min-width:0;
  }
  .brand-mark{
    display:inline-flex;
    align-items:center;
    gap:10px;
    max-width:min(48vw, 480px);
    padding:10px 14px;
    border:1px solid rgba(255,255,255,.1);
    border-radius:999px;
    background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
    box-shadow: inset 0 1px 0 rgba(255,255,255,.04);
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
    letter-spacing:.02em;
    font-weight:800;
    color:var(--text);
  }
  .brand-mark::before{
    content:"";
    width:10px;
    height:10px;
    border-radius:50%;
    background: radial-gradient(circle at 30% 30%, #ffd9a4, var(--accent));
    box-shadow: 0 0 0 5px rgba(170,92,97,.12);
    flex:0 0 auto;
  }
  .brand-sub{
    color:var(--muted);
    font-size:13px;
    letter-spacing:.12em;
    text-transform:uppercase;
    white-space:nowrap;
  }
  .nav-wrap{
    display:flex;
    align-items:center;
    gap:14px;
  }
  .site-nav{
    display:flex;
    align-items:center;
    gap:8px;
  }
  .nav-link{
    position:relative;
    display:inline-flex;
    align-items:center;
    height:40px;
    padding:0 14px;
    border-radius:999px;
    color:var(--muted);
    border:1px solid transparent;
    transition: transform .18s var(--ease), background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease), box-shadow .18s var(--ease);
  }
  .nav-link:hover{
    color:var(--text);
    transform:translateY(-1px);
    background: rgba(255,255,255,.04);
    border-color: rgba(255,255,255,.08);
    box-shadow: var(--shadow-soft);
  }
  .nav-link.active{
    color:#fff;
    background: linear-gradient(180deg, rgba(170,92,97,.26), rgba(125,61,71,.16));
    border-color: rgba(214,176,122,.18);
  }
  .nav-toggle{
    display:none;
    width:46px;
    height:46px;
    border-radius:14px;
    border:1px solid rgba(255,255,255,.1);
    background: rgba(255,255,255,.04);
    box-shadow: inset 0 1px 0 rgba(255,255,255,.05);
    align-items:center;
    justify-content:center;
    gap:4px;
    flex-direction:column;
    transition: transform .18s var(--ease), background .18s var(--ease), border-color .18s var(--ease);
  }
  .nav-toggle span{
    width:18px;
    height:2px;
    border-radius:999px;
    background: var(--text);
    opacity:.92;
    transition: transform .18s var(--ease), opacity .18s var(--ease);
  }
  .nav-toggle:hover{
    transform:translateY(-1px);
    background: rgba(255,255,255,.06);
    border-color: rgba(255,255,255,.16);
  }

  .page-shell{
    position:relative;
    z-index:1;
    padding: 28px 0 72px;
  }

  .article-hero{
    position:relative;
    overflow:hidden;
    border:1px solid rgba(255,255,255,.08);
    border-radius: calc(var(--radius-lg) + 6px);
    background:
      linear-gradient(120deg, rgba(12,9,10,.96), rgba(18,13,15,.90) 46%, rgba(24,18,20,.92)),
      url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    box-shadow: var(--shadow);
    isolation:isolate;
    margin-bottom: 22px;
  }
  .article-hero::before{
    content:"";
    position:absolute;
    inset:0;
    background:
      radial-gradient(700px 300px at 10% 15%, rgba(170,92,97,.24), transparent 60%),
      radial-gradient(540px 260px at 92% 12%, rgba(214,176,122,.14), transparent 58%),
      linear-gradient(180deg, rgba(8,6,7,.42), rgba(8,6,7,.18));
    pointer-events:none;
  }
  .article-hero-inner{
    position:relative;
    display:grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(300px, .85fr);
    gap: 24px;
    align-items:stretch;
    padding: clamp(22px, 3.8vw, 40px);
    min-height: 420px;
  }
  .hero-copy{
    position:relative;
    z-index:1;
    display:flex;
    flex-direction:column;
    justify-content:center;
    gap: 16px;
  }
  .crumbs{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:8px;
    color:var(--soft);
    font-size:13px;
    line-height:1.4;
  }
  .crumbs a{
    color:var(--muted);
    transition: color .18s var(--ease);
  }
  .crumbs a:hover{
    color:#fff;
  }
  .crumbs .sep{
    color:rgba(255,255,255,.22);
  }
  .article-title{
    margin:0;
    font-size: clamp(32px, 4.4vw, 56px);
    line-height:1.12;
    letter-spacing:.01em;
    font-weight:900;
    max-width: 14ch;
    text-wrap:balance;
  }
  .article-summary{
    margin:0;
    max-width: 66ch;
    color:var(--muted);
    font-size:16px;
  }
  .hero-metrics{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    align-items:center;
  }
  .pill{
    display:inline-flex;
    align-items:center;
    min-height:34px;
    padding:0 12px;
    border-radius:999px;
    border:1px solid rgba(255,255,255,.1);
    background: rgba(255,255,255,.04);
    color:#f5ede9;
    font-size:13px;
    white-space:nowrap;
    box-shadow: inset 0 1px 0 rgba(255,255,255,.04);
  }
  .pill.hot{
    background: linear-gradient(180deg, rgba(170,92,97,.26), rgba(125,61,71,.16));
    border-color: rgba(214,176,122,.18);
  }
  .pill.gold{
    background: linear-gradient(180deg, rgba(214,176,122,.20), rgba(214,176,122,.08));
    border-color: rgba(214,176,122,.24);
  }
  .hero-actions{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    margin-top:4px;
  }
  .btn-soft,
  .btn-primaryish,
  .btn-ghost{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    min-height:46px;
    padding:0 18px;
    border-radius:999px;
    border:1px solid transparent;
    transition: transform .18s var(--ease), border-color .18s var(--ease), background .18s var(--ease), box-shadow .18s var(--ease), color .18s var(--ease), opacity .18s var(--ease);
    white-space:nowrap;
  }
  .btn-primaryish{
    color:#fff;
    background: linear-gradient(180deg, rgba(170,92,97,.98), rgba(125,61,71,.96));
    border-color: rgba(214,176,122,.22);
    box-shadow: 0 12px 26px rgba(125,61,71,.28);
    font-weight:700;
  }
  .btn-primaryish:hover{
    transform:translateY(-1px);
    box-shadow: 0 16px 28px rgba(125,61,71,.32);
    color:#fff;
  }
  .btn-soft{
    color:var(--text);
    background: rgba(255,255,255,.04);
    border-color: rgba(255,255,255,.1);
  }
  .btn-soft:hover{
    transform:translateY(-1px);
    background: rgba(255,255,255,.06);
    border-color: rgba(255,255,255,.16);
    color:#fff;
  }
  .btn-ghost{
    color:var(--muted);
    border-color: rgba(255,255,255,.1);
    background: rgba(255,255,255,.02);
  }
  .btn-ghost:hover{
    color:#fff;
    background: rgba(255,255,255,.05);
    border-color: rgba(255,255,255,.14);
    transform:translateY(-1px);
  }

  .hero-panel{
    position:relative;
    z-index:1;
    display:grid;
    grid-template-rows: 1fr auto;
    gap:14px;
    min-height: 100%;
  }
  .hero-visual{
    position:relative;
    overflow:hidden;
    border-radius: var(--radius-lg);
    border:1px solid rgba(255,255,255,.08);
    background:
      linear-gradient(180deg, rgba(12,10,11,.18), rgba(12,10,11,.68)),
      url('/assets/images/coverpic/cover-1.webp') center/cover no-repeat;
    box-shadow: var(--shadow-soft);
    min-height: 270px;
  }
  .hero-visual::after{
    content:"";
    position:absolute;
    inset:0;
    background: linear-gradient(180deg, transparent 38%, rgba(0,0,0,.58));
  }
  .hero-visual-caption{
    position:absolute;
    left:18px;
    right:18px;
    bottom:16px;
    z-index:1;
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    align-items:center;
    justify-content:space-between;
  }
  .visual-chip{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:8px 12px;
    border-radius:999px;
    background: rgba(18,13,15,.72);
    border:1px solid rgba(255,255,255,.10);
    color:#fff;
    font-size:13px;
    backdrop-filter: blur(10px);
  }
  .visual-chip strong{
    color: var(--accent-2);
    font-weight:800;
  }

  .tdk-card{
    padding:16px;
    border-radius: var(--radius-lg);
    background: var(--card);
    border:1px solid rgba(255,255,255,.08);
    box-shadow: var(--shadow-soft);
  }
  .tdk-head{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    margin-bottom:12px;
  }
  .tdk-title{
    margin:0;
    font-size:15px;
    font-weight:800;
    letter-spacing:.02em;
  }
  .tdk-tag{
    display:inline-flex;
    align-items:center;
    min-height:28px;
    padding:0 10px;
    border-radius:999px;
    background: rgba(214,176,122,.12);
    color: var(--accent-2);
    border:1px solid rgba(214,176,122,.18);
    font-size:12px;
  }
  .tdk-list{
    display:grid;
    gap:10px;
  }
  .tdk-row{
    padding:10px 12px;
    border-radius:16px;
    background: rgba(255,255,255,.03);
    border:1px solid rgba(255,255,255,.07);
  }
  .tdk-row .label{
    display:block;
    color:var(--soft);
    font-size:12px;
    margin-bottom:4px;
  }
  .tdk-row .value{
    display:block;
    color:var(--text);
    font-size:13px;
    line-height:1.55;
  }

  .section{
    margin-top: 22px;
  }
  .section-shell{
    display:grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 22px;
    align-items:start;
  }
  .article-card,
  .aside-card,
  .related-card,
  .notice-bar,
  .cta-shell,
  .faq-card,
  .empty-state{
    border-radius: var(--radius-lg);
    background: var(--card);
    border:1px solid rgba(255,255,255,.08);
    box-shadow: var(--shadow-soft);
  }
  .article-card{
    overflow:hidden;
  }
  .article-card-head{
    padding: 18px 20px 12px;
    border-bottom:1px solid rgba(255,255,255,.08);
    background: linear-gradient(180deg, rgba(255,255,255,.02), transparent);
  }
  .section-label{
    display:inline-flex;
    align-items:center;
    gap:8px;
    min-height:30px;
    padding:0 12px;
    border-radius:999px;
    color:var(--accent-2);
    background: rgba(214,176,122,.1);
    border:1px solid rgba(214,176,122,.16);
    font-size:12px;
    font-weight:700;
    letter-spacing:.04em;
  }
  .article-card-head h2{
    margin:12px 0 0;
    font-size:24px;
    line-height:1.25;
    font-weight:900;
  }
  .meta-row{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-top:14px;
  }
  .meta-item{
    display:inline-flex;
    align-items:center;
    min-height:32px;
    padding:0 12px;
    border-radius:999px;
    border:1px solid rgba(255,255,255,.08);
    background: rgba(255,255,255,.03);
    color:var(--muted);
    font-size:12px;
  }
  .meta-item strong{
    color:#fff;
    margin-right:6px;
    font-weight:700;
  }

  .article-body{
    padding: 22px 20px 24px;
  }
  .content-prose{
    font-size: 17px;
    line-height: 1.95;
    color: var(--text);
    word-break: break-word;
  }
  .content-prose > :first-child{
    margin-top:0;
  }
  .content-prose p{
    margin: 0 0 1em;
    color: #f3e8e3;
  }
  .content-prose .lead{
    font-size: 18px;
    color:#fff;
  }
  .content-prose h2,
  .content-prose h3,
  .content-prose h4{
    margin: 1.7em 0 .7em;
    line-height:1.3;
    color:#fff;
    font-weight:900;
  }
  .content-prose h2{ font-size: 24px; }
  .content-prose h3{ font-size: 20px; }
  .content-prose h4{ font-size: 18px; }
  .content-prose ul,
  .content-prose ol{
    padding-left: 1.2em;
    margin: 0 0 1em;
  }
  .content-prose li{
    margin: .4em 0;
    color:#f1e7e2;
  }
  .content-prose blockquote{
    margin: 1.3em 0;
    padding: 16px 18px;
    border-left: 4px solid var(--accent);
    background: rgba(170,92,97,.08);
    border-radius: 16px;
    color:#f7eee9;
  }
  .content-prose hr{
    border:0;
    height:1px;
    margin: 1.6em 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,.16), transparent);
  }
  .content-prose img{
    width:100%;
    height:auto;
    border-radius: 18px;
    margin: 1.2em 0;
    border:1px solid rgba(255,255,255,.08);
    box-shadow: var(--shadow-soft);
  }
  .content-prose figure{
    margin: 1.3em 0;
  }
  .content-prose figcaption{
    margin-top:8px;
    color:var(--soft);
    font-size: 13px;
    text-align:center;
  }
  .content-prose a{
    color: #ffd8cf;
    text-decoration: underline;
    text-decoration-color: rgba(214,176,122,.42);
    text-underline-offset: 3px;
  }
  .content-prose a:hover{
    color:#fff;
  }
  .content-prose table{
    width:100%;
    border-collapse:collapse;
    margin: 1.2em 0;
    overflow:hidden;
    border-radius:16px;
    display:block;
  }
  .content-prose table thead,
  .content-prose table tbody,
  .content-prose table tr{
    display:table;
    width:100%;
    table-layout:fixed;
  }
  .content-prose th,
  .content-prose td{
    padding:12px 14px;
    border-bottom:1px solid rgba(255,255,255,.08);
  }
  .content-prose th{
    background: rgba(255,255,255,.04);
    color:#fff;
    text-align:left;
  }
  .content-prose td{
    color:#f0e6e1;
  }

  .article-footer-actions{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    margin-top:22px;
  }

  .aside-stack{
    display:grid;
    gap: 18px;
    position:sticky;
    top: 92px;
  }
  .aside-card{
    padding:18px;
  }
  .aside-card h3{
    margin:0 0 12px;
    font-size:18px;
    font-weight:900;
  }
  .info-list{
    display:grid;
    gap:10px;
    margin:0;
    padding:0;
    list-style:none;
  }
  .info-list li{
    display:flex;
    gap:12px;
    align-items:flex-start;
    padding:12px 12px;
    border-radius:16px;
    background: rgba(255,255,255,.03);
    border:1px solid rgba(255,255,255,.07);
  }
  .info-dot{
    width:10px;
    height:10px;
    margin-top:7px;
    border-radius:50%;
    background: radial-gradient(circle at 30% 30%, #ffd9a4, var(--accent));
    box-shadow: 0 0 0 5px rgba(170,92,97,.12);
    flex:0 0 auto;
  }
  .info-list strong{
    display:block;
    margin-bottom:4px;
    color:#fff;
    font-size:13px;
  }
  .info-list span{
    display:block;
    color:var(--muted);
    font-size:13px;
    line-height:1.65;
  }

  .mini-tags{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
  }
  .mini-tag{
    display:inline-flex;
    align-items:center;
    min-height:32px;
    padding:0 12px;
    border-radius:999px;
    background: rgba(255,255,255,.03);
    border:1px solid rgba(255,255,255,.08);
    color:var(--text);
    font-size:12px;
    transition: transform .18s var(--ease), background .18s var(--ease), border-color .18s var(--ease);
  }
  .mini-tag:hover{
    transform:translateY(-1px);
    background: rgba(255,255,255,.05);
    border-color: rgba(255,255,255,.14);
  }

  .side-visual{
    overflow:hidden;
    border-radius: 18px;
    border:1px solid rgba(255,255,255,.08);
    background:
      linear-gradient(180deg, rgba(16,12,13,.08), rgba(16,12,13,.6)),
      url('/assets/images/coverpic/cover-2.webp') center/cover no-repeat;
    min-height: 210px;
    position:relative;
  }
  .side-visual::after{
    content:"";
    position:absolute;
    inset:0;
    background: linear-gradient(180deg, transparent, rgba(0,0,0,.55));
  }
  .side-visual-caption{
    position:absolute;
    left:14px;
    right:14px;
    bottom:14px;
    z-index:1;
    display:flex;
    flex-wrap:wrap;
    gap:8px;
  }
  .small-chip{
    display:inline-flex;
    align-items:center;
    min-height:28px;
    padding:0 10px;
    border-radius:999px;
    background: rgba(18,13,15,.72);
    border:1px solid rgba(255,255,255,.10);
    color:#fff;
    font-size:12px;
  }

  .related-wrap{
    margin-top: 22px;
  }
  .section-head{
    display:flex;
    align-items:end;
    justify-content:space-between;
    gap:14px;
    margin-bottom: 14px;
  }
  .section-head h2{
    margin:0;
    font-size:22px;
    font-weight:900;
  }
  .section-head p{
    margin:0;
    color:var(--muted);
    font-size:13px;
  }
  .related-grid{
    display:grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
  .related-card{
    overflow:hidden;
    transition: transform .18s var(--ease), box-shadow .18s var(--ease), border-color .18s var(--ease);
  }
  .related-card:hover{
    transform: translateY(-3px);
    border-color: rgba(214,176,122,.18);
    box-shadow: 0 18px 34px rgba(0,0,0,.34);
  }
  .related-thumb{
    position:relative;
    aspect-ratio: 4 / 3;
    overflow:hidden;
    background: #1f171a;
  }
  .related-thumb img{
    width:100%;
    height:100%;
    object-fit:cover;
    transition: transform .35s var(--ease);
  }
  .related-card:hover .related-thumb img{
    transform: scale(1.05);
  }
  .related-thumb::after{
    content:"";
    position:absolute;
    inset:0;
    background: linear-gradient(180deg, transparent 28%, rgba(0,0,0,.55));
  }
  .related-body{
    padding:16px;
  }
  .related-body h3{
    margin:0 0 8px;
    font-size:16px;
    line-height:1.45;
    font-weight:800;
  }
  .related-body p{
    margin:0;
    color:var(--muted);
    font-size:13px;
    line-height:1.7;
  }
  .related-meta{
    margin-top:12px;
    display:flex;
    flex-wrap:wrap;
    gap:8px;
  }

  .notice-bar{
    margin-top: 22px;
    padding: 16px 18px;
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:12px;
  }
  .notice-bar strong{
    font-size:16px;
    font-weight:900;
  }
  .notice-bar p{
    margin:0;
    color:var(--muted);
    font-size:13px;
  }

  .cta-shell{
    margin-top: 22px;
    padding: 22px;
    display:grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 18px;
    align-items:center;
    background:
      linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.01)),
      radial-gradient(500px 220px at 100% 0%, rgba(214,176,122,.10), transparent 60%),
      var(--card);
  }
  .cta-shell h2{
    margin:0 0 10px;
    font-size:24px;
    font-weight:900;
  }
  .cta-shell p{
    margin:0;
    color:var(--muted);
  }
  .cta-actions{
    display:flex;
    gap:12px;
    flex-wrap:wrap;
    justify-content:flex-end;
  }

  .faq-wrap{
    margin-top: 22px;
  }
  .faq-grid{
    display:grid;
    gap: 14px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .faq-card{
    padding:18px;
  }
  .faq-q{
    display:flex;
    align-items:flex-start;
    gap:10px;
    margin-bottom:10px;
    font-weight:800;
    color:#fff;
  }
  .faq-q .qmark{
    width:26px;
    height:26px;
    border-radius:50%;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    flex:0 0 auto;
    color:#fff;
    background: linear-gradient(180deg, rgba(170,92,97,.30), rgba(125,61,71,.20));
    border:1px solid rgba(214,176,122,.18);
    font-size:13px;
  }
  .faq-card p{
    margin:0;
    color:var(--muted);
    font-size:13px;
    line-height:1.8;
  }

  .empty-state{
    padding: 30px 22px;
    text-align:center;
  }
  .empty-state h2{
    margin:0 0 10px;
    font-size:24px;
    font-weight:900;
  }
  .empty-state p{
    margin:0 auto 18px;
    max-width: 52ch;
    color:var(--muted);
  }

  .site-footer{
    position:relative;
    z-index:1;
    padding: 20px 0 34px;
    border-top:1px solid rgba(255,255,255,.08);
    background: linear-gradient(180deg, rgba(10,7,8,.12), rgba(10,7,8,.42));
  }
  .footer-shell{
    padding-top: 10px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns: 1.4fr .9fr 1fr;
    gap: 20px;
    align-items:start;
  }
  .footer-brand strong{
    display:block;
    margin-bottom:10px;
    font-size:18px;
    font-weight:900;
  }
  .footer-brand p{
    margin:0;
    color:var(--muted);
    font-size:13px;
    line-height:1.8;
  }
  .footer-links{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
  }
  .footer-links a{
    display:inline-flex;
    align-items:center;
    min-height:36px;
    padding:0 12px;
    border-radius:999px;
    background: rgba(255,255,255,.03);
    border:1px solid rgba(255,255,255,.08);
    color:var(--text);
    font-size:13px;
    transition: transform .18s var(--ease), background .18s var(--ease), border-color .18s var(--ease);
  }
  .footer-links a:hover{
    transform:translateY(-1px);
    background: rgba(255,255,255,.05);
    border-color: rgba(255,255,255,.14);
  }
  .footer-meta{
    display:grid;
    gap:8px;
    justify-items:start;
  }
  .copyline,
  .age-note{
    color:var(--muted);
    font-size:13px;
    line-height:1.7;
  }

  .back-top{
    position:fixed;
    right:18px;
    bottom:18px;
    z-index:70;
    width:48px;
    height:48px;
    border-radius:16px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    background: linear-gradient(180deg, rgba(170,92,97,.95), rgba(125,61,71,.96));
    color:#fff;
    border:1px solid rgba(214,176,122,.22);
    box-shadow: 0 14px 28px rgba(0,0,0,.28);
    opacity:0;
    visibility:hidden;
    transform: translateY(10px);
    transition: opacity .18s var(--ease), visibility .18s var(--ease), transform .18s var(--ease), box-shadow .18s var(--ease);
  }
  .back-top.is-visible{
    opacity:1;
    visibility:visible;
    transform: translateY(0);
  }
  .back-top:hover{
    transform: translateY(-2px);
    box-shadow: 0 18px 32px rgba(0,0,0,.32);
    color:#fff;
  }

  @media (max-width: 1199.98px){
    .article-hero-inner{
      grid-template-columns: minmax(0, 1fr);
    }
    .hero-panel{
      grid-template-rows:auto auto;
    }
    .section-shell{
      grid-template-columns: minmax(0, 1fr) 290px;
    }
    .related-grid{
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .faq-grid{
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .footer-grid{
      grid-template-columns: 1fr 1fr;
    }
    .footer-meta{
      grid-column: 1 / -1;
    }
  }

  @media (max-width: 991.98px){
    .section-shell{
      grid-template-columns: 1fr;
    }
    .aside-stack{
      position:static;
    }
    .cta-shell{
      grid-template-columns: 1fr;
    }
    .cta-actions{
      justify-content:flex-start;
    }
    .related-grid{
      grid-template-columns: 1fr;
    }
    .faq-grid{
      grid-template-columns: 1fr;
    }
    .article-card-head h2{
      font-size: 22px;
    }
  }

  @media (max-width: 767.98px){
    :root{
      --header-h: 68px;
    }
    .brand-mark{
      max-width: 58vw;
      font-size: 14px;
      padding: 9px 12px;
    }
    .brand-sub{
      display:none;
    }
    .nav-toggle{
      display:inline-flex;
    }
    .site-nav{
      position:fixed;
      top: 68px;
      left: 16px;
      right: 16px;
      display:none;
      flex-direction:column;
      align-items:stretch;
      gap:8px;
      padding: 12px;
      border-radius: 20px;
      background: rgba(17,12,14,.96);
      border:1px solid rgba(255,255,255,.10);
      box-shadow: var(--shadow);
      backdrop-filter: blur(14px);
    }
    .site-nav.is-open{
      display:flex;
    }
    .nav-link{
      width:100%;
      justify-content:center;
    }
    .article-title{
      max-width: none;
      font-size: clamp(28px, 8vw, 42px);
    }
    .article-summary{
      font-size:15px;
    }
    .article-body{
      padding: 18px 16px 20px;
    }
    .article-card-head{
      padding: 16px 16px 12px;
    }
    .article-card-head h2{
      font-size: 20px;
    }
    .hero-actions,
    .hero-metrics,
    .meta-row,
    .mini-tags{
      gap:8px;
    }
    .btn-primaryish,
    .btn-soft,
    .btn-ghost{
      width:100%;
    }
    .hero-visual{
      min-height: 220px;
    }
    .footer-grid{
      grid-template-columns: 1fr;
    }
    .footer-meta{
      grid-column:auto;
    }
    .back-top{
      right:14px;
      bottom:14px;
    }
  }

  @media (max-width: 519.98px){
    .container{
      width:min(var(--container), calc(100% - 24px));
    }
    .page-shell{
      padding-top: 18px;
      padding-bottom: 58px;
    }
    .article-hero{
      border-radius: 22px;
    }
    .article-hero-inner{
      padding: 16px;
      gap: 16px;
    }
    .hero-visual-caption{
      left:12px;
      right:12px;
      bottom:12px;
    }
    .tdk-card,
    .aside-card,
    .notice-bar,
    .cta-shell,
    .faq-card{
      border-radius: 22px;
    }
    .notice-bar{
      flex-direction:column;
      align-items:flex-start;
    }
    .section-head{
      flex-direction:column;
      align-items:flex-start;
    }
    .site-footer{
      padding-bottom: 26px;
    }
  }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}