/* ============================================================
   AURELIA 尚艺 · 国际高端艺术品撮合展示平台
   设计系统 终版 —— 美术馆级莫兰迪极简（对标苏富比/佳士得）
   色彩：炭黑 #121212 · 米白 #F8F7F2 · 哑光浅金 #C8B99E
   字体：Inter + 思源黑体（全站无衬线）
   动效：统一 0.3s 缓动 · 圆角统一 4px · 图片统一 4:3
   ============================================================ */
/* 刊头衬线：西文 Cormorant Garamond（正体 + 斜体） */
@import url('/fonts/cormorant/300.css');
@import url('/fonts/cormorant/300-italic.css');
@import url('/fonts/cormorant/400.css');
@import url('/fonts/cormorant/400-italic.css');
@import url('/fonts/cormorant/500.css');
/* 中文宋体：思源宋体（标题 · 刊物级排印） */
@import url('/fonts/noto-serif-sc/300.css');
@import url('/fonts/noto-serif-sc/400.css');
@import url('/fonts/noto-serif-sc/500.css');
@import url('/fonts/noto-serif-sc/600.css');
/* 正文无衬线：Inter + 思源黑体 */
@import url('/fonts/inter/400.css');
@import url('/fonts/inter/500.css');
@import url('/fonts/inter/600.css');
@import url('/fonts/inter/700.css');
@import url('/fonts/noto-sans-sc/300.css');
@import url('/fonts/noto-sans-sc/400.css');
@import url('/fonts/noto-sans-sc/500.css');
@import url('/fonts/noto-sans-sc/700.css');

:root {
  --bg: #F8F7F2;
  --bg-soft: #F2F1EA;
  --card: #FFFFFF;
  --ink: #121212;
  --text: #1A1A1A;
  --text-2: #666666;
  --text-3: #999999;
  --gold: #C8B99E;
  --gold-deep: #A99A7E;
  --hairline: rgba(18, 18, 18, 0.08);
  --hairline-2: rgba(18, 18, 18, 0.05);
  --font: "Inter", "Noto Sans SC", -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  /* 标题字体：西文 Cormorant Garamond（刊头级衬线）→ 中文 Noto Serif SC（思源宋体）
     注意：Cormorant 不含中文字形，中文自动回退到思源宋体，形成「西文衬线 + 中文宋体」的国际刊物排印组合 */
  --display: "Cormorant Garamond", "Noto Serif SC", "Songti SC", "SimSun", Georgia, serif;
  --serif: "Noto Serif SC", "Songti SC", "SimSun", Georgia, serif;
  /* 中西混排：西文用 Inter（无衬线）· 中文用思源宋体（衬线）—— 顺序决定回退，Inter 无中文字形 */
  --mixed: "Inter", "Noto Serif SC", "Songti SC", "SimSun", sans-serif;
  --r: 4px;
  --t: 0.3s ease;
  --ease: cubic-bezier(0.25, 0.8, 0.35, 1);
}

/* 标题不再强制深色（深色区块内继承自身颜色，浅色区块由各处显式指定） */
h1, h2, h3 { color: inherit; }
h1.ink-title, h2.ink-title, h3.ink-title, .sec-en, .page-head h1, .display-title { color: var(--ink); }

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  font-weight: 400;
  line-height: 1.8;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; transition: opacity var(--t), color var(--t); }
button { font-family: var(--font); cursor: pointer; background: none; border: none; color: inherit; }
input, select, textarea { font-family: var(--font); font-size: 14px; color: var(--text); border-radius: var(--r); }
::selection { background: #E9E5D9; color: var(--ink); }
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: rgba(18, 18, 18, 0.14); border-radius: 4px; }

.container { max-width: 1360px; margin: 0 auto; padding: 0 5vw; }

/* ---------- 字体层级（规范执行） ---------- */
h1, h2, h3 { color: var(--ink); font-weight: 700; letter-spacing: 0.02em; }
.sec-en { display: block; font-size: 30px; font-weight: 700; letter-spacing: 0.03em; color: var(--ink); }
.sec-zh { display: block; font-size: 13px; font-weight: 500; letter-spacing: 0.34em; color: var(--text-3); margin-top: 8px; }
.micro { font-size: 12px; color: var(--text-3); letter-spacing: 0.08em; }

/* ---------- 加载/空态/骨架 ---------- */
.spinner {
  width: 26px; height: 26px; margin: 80px auto;
  border: 1px solid var(--hairline); border-top-color: var(--ink);
  border-radius: 50%; animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.empty-tip { text-align: center; color: var(--text-3); font-size: 13px; padding: 80px 0; letter-spacing: 0.1em; }
.empty-tip img { width: 110px; margin: 0 auto 22px; display: block; opacity: 0.9; border-radius: var(--r); }
.skeleton { position: relative; overflow: hidden; background: #EFEEE7; border-radius: var(--r); }
.skeleton::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(100deg, transparent 30%, rgba(255,255,255,0.55) 50%, transparent 70%);
  transform: translateX(-100%); animation: shimmer 1.4s infinite;
}
@keyframes shimmer { to { transform: translateX(100%); } }

/* ---------- 图片：模糊占位渐进加载 ---------- */
html.js img { opacity: 0; filter: blur(10px); transition: opacity var(--t), filter var(--t), transform var(--t); }
html.js img.ld { opacity: 1; filter: none; }

/* ---------- 滚动显现（克制） ---------- */
.reveal { opacity: 0; transform: translateY(10px); transition: opacity 0.35s ease, transform 0.35s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* ============================================================
   顶部导航 —— 透明悬浮 · 滚动转哑光白
   ============================================================ */
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 90; transition: background var(--t); }
.site-header.scrolled,
body[data-page]:not([data-page="home"]) .site-header {
  background: rgba(248, 247, 242, 0.94);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
}
.header-inner {
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center;
  height: 80px; gap: 24px;
}
.site-header.scrolled .header-inner,
body[data-page]:not([data-page="home"]) .header-inner { height: 68px; }

.logo { display: flex; align-items: baseline; gap: 10px; justify-self: start; }
.lg-en { font-size: 17px; font-weight: 600; letter-spacing: 0.34em; color: var(--ink); }
.lg-zh { font-size: 10px; font-weight: 400; letter-spacing: 0.3em; color: var(--text-3); }

.main-nav { display: flex; gap: 42px; justify-content: center; }
.main-nav a { position: relative; text-align: center; padding: 4px 0; }
.nv-en { display: block; font-size: 12px; font-weight: 500; letter-spacing: 0.08em; color: var(--ink); transition: opacity var(--t); }
.nv-zh { display: block; font-size: 9px; letter-spacing: 0.2em; color: var(--text-3); margin-top: 1px; }
.main-nav a::after {
  content: ""; position: absolute; left: 0; bottom: -2px; height: 1px; width: 100%;
  background: var(--gold-deep); transform: scaleX(0); transform-origin: center;
  transition: transform var(--t);
}
.main-nav a:hover::after, .main-nav a.active::after { transform: scaleX(1); }
.main-nav a:hover .nv-en { opacity: 0.62; }

.nav-right { display: flex; align-items: center; gap: 24px; justify-self: end; white-space: nowrap; }
.lang-switch { display: flex; align-items: center; gap: 2px; font-size: 11px; }
.lang-switch button { padding: 4px 8px; font-size: 11px; letter-spacing: 0.06em; color: var(--text-3); transition: color var(--t); }
.lang-switch button.active { color: var(--ink); }
.lang-switch .sep { color: var(--hairline); }
.nav-user { display: flex; align-items: center; gap: 16px; font-size: 11.5px; letter-spacing: 0.06em; }
.nav-user a { color: var(--ink); }
.nav-user a:hover { opacity: 0.6; }
.nav-user .sep { color: var(--hairline); }
.nav-user .who { color: var(--ink); font-weight: 500; }

.nav-burger { display: none; width: 36px; height: 36px; position: relative; }
.nav-burger span { position: absolute; left: 8px; right: 8px; height: 1.5px; background: var(--ink); transition: transform var(--t), opacity var(--t); }
.nav-burger span:nth-child(1) { top: 14px; }
.nav-burger span:nth-child(2) { top: 21px; }
.site-header.menu-open .nav-burger span:nth-child(1) { transform: translateY(3.5px) rotate(45deg); }
.site-header.menu-open .nav-burger span:nth-child(2) { transform: translateY(-3.5px) rotate(-45deg); }

/* ============================================================
   首屏 Banner —— 全屏沉浸 · 居中文案 · 暗角滤镜
   ============================================================ */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; justify-content: center; overflow: hidden; background: var(--bg-soft); }
.hero-bg { position: absolute; inset: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(ellipse 72% 62% at 50% 46%, rgba(248,247,242,0.82) 0%, rgba(248,247,242,0.4) 52%, rgba(18,18,18,0.14) 100%);
}
.hero-content { position: relative; z-index: 2; text-align: center; padding: 100px 24px 60px; max-width: 960px; }
.hero-en {
  font-size: clamp(32px, 4.8vw, 58px); font-weight: 700; letter-spacing: 0.045em;
  line-height: 1.25; color: var(--ink);
  opacity: 0; animation: fadeUp 0.7s ease 0.15s both;
}
.hero-cn {
  font-size: 16px; font-weight: 500; letter-spacing: 0.32em; color: var(--text-2);
  margin-top: 26px; opacity: 0; animation: fadeUp 0.7s ease 0.35s both;
}
.hero-note {
  font-size: 11px; font-weight: 500; letter-spacing: 0.26em; text-transform: uppercase; color: var(--text-3);
  margin-top: 38px; opacity: 0; animation: fadeUp 0.7s ease 0.55s both;
}
.hero-rule { position: absolute; bottom: 0; left: 5vw; right: 5vw; height: 1px; background: var(--hairline); z-index: 2; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

/* ============================================================
   平台价值简介 —— 短句分行 · 双语 · 超大留白
   ============================================================ */
.values { padding: 150px 0 130px; }
.value-list { display: flex; flex-direction: column; align-items: center; gap: 0; text-align: center; }
.v-item { padding: 34px 0; max-width: 720px; }
.v-en { font-size: clamp(21px, 2.4vw, 28px); font-weight: 700; letter-spacing: 0.03em; color: var(--ink); line-height: 1.45; }
.v-zh { font-size: 13px; font-weight: 400; letter-spacing: 0.3em; color: var(--text-3); margin-top: 10px; }

/* ============================================================
   区块通用
   ============================================================ */
.section { padding: 120px 0; }
/* 纹理槽位：图片缺失时自动仅显示底色 */
.section-alt { background-color: var(--bg-soft); background-image: url('/img/bg-cream.jpg'); background-size: cover; background-position: center; }
.sec-head { text-align: center; margin-bottom: 72px; }
.section-foot { text-align: right; margin-top: 56px; }
.link-more {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 500; letter-spacing: 0.14em; color: var(--ink);
  padding-bottom: 4px; border-bottom: 1px solid var(--gold);
  transition: opacity var(--t);
}
.link-more:hover { opacity: 0.6; }
.link-more i, .link-more .arr { font-style: normal; transition: transform var(--t); display: inline-block; }
.link-more:hover i, .link-more:hover .arr { transform: translateX(4px); }

/* ============================================================
   艺术品网格 —— 4列规整 · 4:3 统一画幅 · 无边框卡片
   ============================================================ */
.art-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 64px 3.5%; }
.related-wrap .art-grid { grid-template-columns: repeat(3, 1fr); gap: 48px 4%; }
.art-card { display: block; border-radius: var(--r); transition: transform var(--t), box-shadow var(--t); }
.art-card:hover { transform: translateY(-2px); box-shadow: 0 14px 36px rgba(18, 18, 18, 0.06); }
.art-media { aspect-ratio: 4 / 3; overflow: hidden; background: #EFEEE6; border-radius: var(--r); }
.art-media img {
  width: 100%; height: 100%; object-fit: cover; border-radius: var(--r);
  transition: opacity var(--t), filter var(--t), transform var(--t);
}
.art-card:hover .art-media img { transform: scale(1.02); }
.art-meta { padding-top: 20px; }
.art-title { font-size: 15.5px; font-weight: 600; color: var(--ink); letter-spacing: 0.01em; line-height: 1.5; }
.art-artist { font-size: 12.5px; color: var(--text-2); margin: 5px 0 7px; letter-spacing: 0.04em; }
.art-price { font-size: 13px; font-weight: 600; color: var(--ink); letter-spacing: 0.06em; }

/* ============================================================
   成交公示 —— 白卡极简台账 · 浅金点缀
   ============================================================ */
.records-card { background: var(--card); border-radius: var(--r); padding: 10px 48px; box-shadow: 0 4px 28px rgba(18, 18, 18, 0.035); }
.record-row {
  display: flex; justify-content: space-between; align-items: baseline; gap: 24px;
  padding: 27px 0; border-bottom: 1px solid #F0EEE8;
  transition: background var(--t);
}
.record-row:last-child { border-bottom: none; }
.record-date { font-size: 14px; color: var(--text-2); letter-spacing: 0.06em; }
.record-price { font-size: 16px; font-weight: 700; color: var(--ink); letter-spacing: 0.04em; white-space: nowrap; }
.record-cur { font-size: 11px; font-weight: 500; color: var(--gold-deep); letter-spacing: 0.08em; margin-right: 8px; }
.records-note { text-align: center; font-size: 11.5px; color: var(--text-3); letter-spacing: 0.18em; margin-top: 36px; }

/* 台账页（年度分组沿用同一语言） */
.deal-count { max-width: 880px; margin: 0 auto 44px; font-size: 11.5px; color: var(--text-3); letter-spacing: 0.24em; text-transform: uppercase; }
.deal-list { max-width: 880px; margin: 0 auto; }
.deal-row {
  display: flex; justify-content: space-between; align-items: baseline; gap: 24px;
  padding: 26px 0; border-bottom: 1px solid #EFEDE6; transition: background var(--t);
}
.deal-row:hover { background: rgba(255, 255, 255, 0.55); }
.deal-date { font-size: 14px; color: var(--text-2); letter-spacing: 0.06em; }
.deal-price { font-size: 16px; font-weight: 700; color: var(--ink); letter-spacing: 0.04em; white-space: nowrap; }
.deal-cur { font-size: 11px; font-weight: 500; color: var(--gold-deep); letter-spacing: 0.08em; margin-right: 8px; }
.deal-note { max-width: 880px; margin: 44px auto 0; color: var(--text-3); font-size: 11.5px; letter-spacing: 0.16em; }
.deal-note.artist-note { margin-top: 12px; }
.deal-artist {
  flex: 1; text-align: center; font-family: var(--display); font-weight: 400;
  font-size: 17px; color: var(--ink); letter-spacing: 0.06em;
}
.deal-artist.anon { font-style: italic; font-size: 14.5px; color: var(--text-3); letter-spacing: 0.1em; }
.deal-artist.none { color: #D8D4C9; font-size: 15px; }
.record-artist {
  flex: 1; text-align: center; font-family: var(--display); font-size: 14.5px;
  color: var(--ink); letter-spacing: 0.05em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.record-artist.anon { font-style: italic; font-size: 12.5px; color: var(--text-3); }
.record-artist:empty { flex: 0; }
.year-head { display: flex; align-items: baseline; justify-content: space-between; padding: 56px 0 22px; }
.year-head .yh { font-size: 22px; font-weight: 700; color: var(--ink); letter-spacing: 0.04em; }
.year-head .micro { color: var(--text-3); }

/* ============================================================
   艺术社区（首页三卡 · 列表页）
   ============================================================ */
.post-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 56px 4%; }
.post-grid .post-card { display: block; border-radius: var(--r); transition: transform var(--t), box-shadow var(--t); }
.post-grid .post-card:hover { transform: translateY(-2px); box-shadow: 0 14px 36px rgba(18, 18, 18, 0.05); }
.post-media { aspect-ratio: 4 / 3; overflow: hidden; background: #EFEEE6; border-radius: var(--r); margin-bottom: 20px; }
.post-media img { width: 100%; height: 100%; object-fit: cover; border-radius: var(--r); transition: opacity var(--t), filter var(--t), transform var(--t); }
.post-grid .post-card:hover .post-media img { transform: scale(1.02); }
.post-title { font-size: 15px; font-weight: 600; color: var(--ink); line-height: 1.6; letter-spacing: 0.01em; }
.post-time { font-size: 12px; color: var(--text-3); margin-top: 6px; letter-spacing: 0.08em; }

/* 社区列表页 */
.post-list { max-width: 960px; margin: 0 auto; }
.post-list .post-card { display: block; padding: 44px 0; border-bottom: 1px solid var(--hairline); transition: opacity var(--t); }
.post-list .post-card:hover { opacity: 0.75; }
.post-list .post-card h3 { font-size: 19px; font-weight: 600; margin-bottom: 10px; letter-spacing: 0.02em; }
.post-list .post-card > p { color: var(--text-2); font-size: 13.5px; max-width: 76ch; margin-bottom: 14px; }
.post-meta { font-size: 11.5px; color: var(--text-3); letter-spacing: 0.12em; display: flex; gap: 26px; }
.post-images { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; margin: 18px 0; }
.post-images img { aspect-ratio: 1; object-fit: cover; border-radius: var(--r); cursor: zoom-in; transition: opacity var(--t); }
.post-images img:hover { opacity: 0.85; }

/* ============================================================
   内页页头
   ============================================================ */
body[data-page]:not([data-page="home"]) { padding-top: 68px; }
.page-head { padding: 88px 0 72px; background-color: var(--bg); background-image: url('/img/bg-cream.jpg'); background-size: cover; background-position: center; }
/* 页头专用底图槽位（成交公示 / 社区） */
body[data-page="transactions"] .page-head {
  background-color: var(--bg);
  background-image: linear-gradient(rgba(248, 247, 242, 0.93), rgba(248, 247, 242, 0.9)), url('/img/bg-data.jpg');
  background-size: cover; background-position: center;
}
body[data-page="community"] .page-head {
  background-color: var(--bg);
  background-image: linear-gradient(rgba(248, 247, 242, 0.93), rgba(248, 247, 242, 0.9)), url('/img/bg-community.jpg');
  background-size: cover; background-position: center;
}
.page-head .container { display: flex; flex-direction: column; align-items: flex-start; }
.page-head .eyebrow { font-size: 11px; letter-spacing: 0.38em; text-transform: uppercase; color: var(--text-3); margin-bottom: 18px; font-weight: 500; }
.page-head h1 { font-size: 32px; font-weight: 700; letter-spacing: 0.02em; line-height: 1.35; }
.display-title { font-size: 32px; font-weight: 700; color: var(--ink); letter-spacing: 0.02em; }
.page-head .sub { color: var(--text-3); font-size: 13px; margin-top: 14px; letter-spacing: 0.12em; }

/* ============================================================
   筛选栏
   ============================================================ */
.filter-bar { padding: 44px 0 14px; display: flex; flex-wrap: wrap; gap: 28px 48px; align-items: flex-end; border-bottom: 1px solid var(--hairline); }
.filter-field label { display: block; font-size: 10.5px; letter-spacing: 0.26em; text-transform: uppercase; color: var(--text-3); margin-bottom: 9px; font-weight: 500; }
.filter-field select, .filter-field input {
  background: transparent; border: none; border-bottom: 1px solid var(--hairline);
  padding: 7px 2px; min-width: 132px; letter-spacing: 0.04em; outline: none;
  font-size: 13px; transition: border-color var(--t); border-radius: 0;
}
.filter-field select:focus, .filter-field input:focus { border-color: var(--gold-deep); }
.filter-actions { margin-left: auto; display: flex; gap: 20px; align-items: center; padding-bottom: 4px; }
.result-count { font-size: 11px; letter-spacing: 0.28em; text-transform: uppercase; color: var(--text-3); padding: 26px 0 10px; font-weight: 500; }

/* ============================================================
   作品详情 —— 沉浸式画廊
   ============================================================ */
.detail-wrap { padding: 60px 0 130px; }
.work-nav { display: flex; justify-content: space-between; gap: 20px; margin-bottom: 40px; }
.tlink {
  position: relative; display: inline-flex; align-items: center; gap: 8px;
  font-size: 11.5px; font-weight: 500; letter-spacing: 0.18em; color: var(--ink);
  padding-bottom: 5px; transition: opacity var(--t);
}
.tlink::after { content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 100%; background: var(--gold); transform: scaleX(0.3); transform-origin: left; transition: transform var(--t); }
.tlink:hover::after { transform: scaleX(1); }
.tlink:hover { opacity: 0.75; }
.tlink i, .tlink .arr { font-style: normal; display: inline-block; transition: transform var(--t); }
.tlink:hover i, .tlink:hover .arr { transform: translateX(4px); }
.dot-sep { width: 3px; height: 3px; border-radius: 50%; background: var(--gold-deep); align-self: center; }

.detail-layout { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 88px; align-items: start; }
.gallery-main { aspect-ratio: 4/3; background: #EFEEE6; overflow: hidden; cursor: zoom-in; border-radius: var(--r); position: relative; }
.gallery-main img { width: 100%; height: 100%; object-fit: cover; border-radius: var(--r); }
.gallery-thumbs { display: flex; gap: 12px; margin-top: 16px; }
.gallery-thumbs img { width: 72px; height: 72px; object-fit: cover; cursor: pointer; opacity: 0.5; border-radius: var(--r); border-bottom: 2px solid transparent; transition: opacity var(--t), border-color var(--t); }
.gallery-thumbs img.active, .gallery-thumbs img:hover { opacity: 1; border-bottom-color: var(--gold); }

.detail-info .cat { font-size: 11px; letter-spacing: 0.34em; text-transform: uppercase; color: var(--text-3); margin-bottom: 20px; font-weight: 500; }
.detail-info h1 { font-size: 30px; font-weight: 700; line-height: 1.4; margin-bottom: 10px; }
.detail-info .artist { font-size: 15px; color: var(--text-2); margin-bottom: 40px; letter-spacing: 0.06em; }
.specs { border-top: 1px solid var(--hairline); margin-bottom: 36px; }
.specs .row { display: flex; justify-content: space-between; padding: 13px 2px; border-bottom: 1px solid var(--hairline-2); font-size: 13.5px; }
.specs .k { color: var(--text-3); letter-spacing: 0.2em; text-transform: uppercase; font-size: 10.5px; padding-top: 4px; font-weight: 500; }
.specs .v { letter-spacing: 0.04em; text-align: right; color: var(--text); }
.price-block { display: flex; align-items: baseline; justify-content: space-between; padding: 22px 0; border-bottom: 1px solid var(--hairline); margin-bottom: 30px; }
.price-label { font-size: 10.5px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--text-3); font-weight: 500; }
.price-value { font-size: 24px; font-weight: 700; color: var(--ink); letter-spacing: 0.03em; }
.tags { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 36px; }
.tag { font-size: 11px; letter-spacing: 0.16em; color: var(--text-2); border: 1px solid var(--hairline); padding: 6px 14px; border-radius: var(--r); transition: border-color var(--t), color var(--t); }
.tag:hover { border-color: var(--gold); color: var(--ink); }
.desc-block h4 { font-size: 10.5px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--text-3); margin-bottom: 14px; font-weight: 500; }
.desc-block p { font-size: 14px; color: var(--text-2); margin-bottom: 12px; line-height: 2; }
.detail-actions { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; margin-top: 44px; }
.related-wrap { margin-top: 120px; border-top: 1px solid var(--hairline); padding-top: 72px; }
.related-title { font-size: 11px; letter-spacing: 0.34em; text-transform: uppercase; color: var(--text-3); margin-bottom: 48px; font-weight: 500; }

/* ============================================================
   按钮 —— 极简透明边框
   ============================================================ */
.btn {
  display: inline-block; border: 1px solid var(--ink); background: transparent; color: var(--ink);
  padding: 13px 32px; font-size: 11.5px; font-weight: 500; letter-spacing: 0.22em; text-transform: uppercase;
  text-align: center; border-radius: var(--r); transition: background var(--t), color var(--t), border-color var(--t), opacity var(--t);
}
.btn:hover { background: var(--ink); color: var(--bg); }
.btn-ink { background: var(--ink); color: var(--bg); }
.btn-ink:hover { background: transparent; color: var(--ink); }
.btn-gold { border-color: var(--gold-deep); color: var(--ink); }
.btn-gold:hover { background: var(--gold-deep); border-color: var(--gold-deep); color: #FFFFFF; }
.btn-sm { padding: 9px 18px; font-size: 10.5px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.35; pointer-events: none; }

/* ============================================================
   表单 / 认证页
   ============================================================ */
.auth-wrap { max-width: 420px; margin: 0 auto; padding: 80px 24px 140px; }
.auth-brand { text-align: center; margin-bottom: 48px; }
.auth-brand .ab-en { font-size: 15px; font-weight: 600; letter-spacing: 0.4em; color: var(--ink); }
.auth-brand .ab-zh { font-size: 10px; letter-spacing: 0.36em; color: var(--text-3); margin-top: 6px; }
.auth-card h1 { font-size: 26px; font-weight: 700; margin-bottom: 6px; }
.auth-card .sub { color: var(--text-3); font-size: 12.5px; margin-bottom: 46px; letter-spacing: 0.08em; }
.field { margin-bottom: 30px; }
.field label { display: block; font-size: 10.5px; letter-spacing: 0.28em; text-transform: uppercase; color: var(--text-3); margin-bottom: 9px; font-weight: 500; }
.field input, .field select, .field textarea {
  width: 100%; background: transparent; border: none; border-bottom: 1px solid var(--hairline);
  padding: 10px 2px; outline: none; letter-spacing: 0.04em; font-size: 14px;
  transition: border-color var(--t); resize: vertical; border-radius: 0;
}
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--ink); }
.field textarea { min-height: 120px; line-height: 1.8; }
.form-error { color: #A4552F; font-size: 12px; margin-bottom: 18px; min-height: 18px; letter-spacing: 0.04em; }
.auth-alt { text-align: center; margin-top: 38px; font-size: 12px; color: var(--text-3); letter-spacing: 0.06em; }
.auth-alt a { color: var(--ink); border-bottom: 1px solid var(--gold); padding-bottom: 2px; }
.auth-note { text-align: center; font-size: 10.5px; color: var(--text-3); margin-top: 26px; letter-spacing: 0.06em; }

/* ============================================================
   个人中心
   ============================================================ */
.profile-wrap { padding: 64px 0 130px; }
.profile-head { display: flex; align-items: baseline; gap: 22px; margin-bottom: 40px; flex-wrap: wrap; }
.profile-head h1 { font-size: 28px; font-weight: 700; }
.status-chip { font-size: 10px; letter-spacing: 0.24em; text-transform: uppercase; padding: 5px 13px; border: 1px solid var(--hairline); border-radius: var(--r); color: var(--text-3); font-weight: 500; }
.status-chip.active { color: var(--ink); border-color: var(--gold); }
.tabs { display: flex; gap: 40px; border-bottom: 1px solid var(--hairline); margin-bottom: 52px; overflow-x: auto; }
.tab { padding: 15px 2px; font-size: 11px; letter-spacing: 0.26em; text-transform: uppercase; color: var(--text-3); border-bottom: 2px solid transparent; margin-bottom: -1px; transition: color var(--t), border-color var(--t); white-space: nowrap; font-weight: 500; }
.tab:hover { color: var(--ink); }
.tab.active { color: var(--ink); border-color: var(--ink); }
.sub-form { max-width: 460px; }
.sub-form h3, .panel h3 { font-size: 10.5px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--text-3); margin-bottom: 26px; font-weight: 500; }
.mini-card { display: flex; gap: 22px; align-items: center; padding: 20px 0; border-bottom: 1px solid var(--hairline-2); }
.mini-card img { width: 64px; height: 64px; object-fit: cover; border-radius: var(--r); }
.mini-card .mc-title { font-size: 14.5px; font-weight: 600; color: var(--ink); }
.mini-card .mc-sub { font-size: 12px; color: var(--text-3); margin: 3px 0 7px; }
.mini-card .mc-price { font-size: 12.5px; color: var(--text-2); font-weight: 600; letter-spacing: 0.05em; }
.mini-card .mc-ops { margin-left: auto; }
.link-remove { font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--text-3); border-bottom: 1px solid var(--hairline); padding-bottom: 3px; transition: color var(--t), border-color var(--t); font-weight: 500; }
.link-remove:hover { color: #A4552F; border-color: #A4552F; }
.list-item { padding: 24px 0; border-bottom: 1px solid var(--hairline-2); }
.list-item h4 { font-size: 16px; font-weight: 600; color: var(--ink); margin-bottom: 6px; }
.list-item .meta { font-size: 10.5px; color: var(--text-3); letter-spacing: 0.18em; display: flex; gap: 22px; align-items: center; flex-wrap: wrap; text-transform: uppercase; font-weight: 500; }

/* ============================================================
   分页 / 模态 / 灯箱 / 提示
   ============================================================ */
.pager { display: flex; justify-content: center; gap: 30px; margin-top: 80px; align-items: center; }
.pager button { font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ink); border-bottom: 1px solid var(--hairline); padding: 5px 2px; transition: opacity var(--t); font-weight: 500; }
.pager button:hover:not(:disabled) { opacity: 0.6; }
.pager button:disabled { opacity: 0.25; cursor: default; }
.pager .pg { font-size: 11px; color: var(--text-3); letter-spacing: 0.2em; }

.modal-overlay {
  position: fixed; inset: 0; z-index: 200; background: rgba(18, 18, 18, 0.42);
  display: flex; align-items: center; justify-content: center; padding: 24px;
  animation: fadeIn 0.3s ease;
}
.modal {
  background: var(--bg); border-radius: var(--r); max-width: 560px; width: 100%;
  max-height: 88vh; overflow-y: auto; padding: 52px 52px 46px; position: relative;
  animation: fadeUp 0.3s ease;
}
.modal h3 { font-size: 21px; font-weight: 700; margin-bottom: 8px; }
.modal .modal-sub { font-size: 12px; color: var(--text-3); margin-bottom: 30px; letter-spacing: 0.06em; }
.modal-close { position: absolute; top: 18px; right: 22px; background: none; border: none; font-size: 22px; color: var(--text-3); line-height: 1; transition: color var(--t); font-weight: 300; }
.modal-close:hover { color: var(--ink); }
.modal .sn-line { font-size: 13px; letter-spacing: 0.18em; color: var(--ink); font-weight: 600; padding: 14px 0; border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); margin-bottom: 26px; }
.channel-list { margin-bottom: 26px; }
.channel-row { display: flex; justify-content: space-between; padding: 14px 2px; border-bottom: 1px solid var(--hairline-2); font-size: 13.5px; }
.channel-row .ct { color: var(--text-3); font-size: 10.5px; letter-spacing: 0.26em; text-transform: uppercase; padding-top: 4px; font-weight: 500; }
.legal-note { font-size: 11.5px; color: var(--text-3); line-height: 2; border-left: 2px solid var(--gold); padding-left: 16px; margin-bottom: 26px; letter-spacing: 0.03em; }

.lightbox { position: fixed; inset: 0; z-index: 300; background: rgba(16, 16, 16, 0.95); display: flex; align-items: center; justify-content: center; animation: fadeIn 0.3s ease; }
.lightbox img { max-width: 88vw; max-height: 84vh; object-fit: contain; border-radius: var(--r); transition: transform var(--t); cursor: zoom-in; }
.lightbox img.zoomed { transform: scale(1.75); cursor: zoom-out; }
.lb-btn { position: absolute; background: none; border: 1px solid rgba(255,255,255,0.3); color: #F8F7F2; width: 46px; height: 46px; border-radius: 50%; font-size: 17px; transition: border-color var(--t), color var(--t); }
.lb-btn:hover { border-color: var(--gold); color: var(--gold); }
.lb-prev { left: 4vw; top: 50%; transform: translateY(-50%); }
.lb-next { right: 4vw; top: 50%; transform: translateY(-50%); }
.lb-close { top: 30px; right: 30px; width: 42px; height: 42px; }
.lb-count { position: absolute; bottom: 34px; left: 50%; transform: translateX(-50%); color: rgba(248,247,242,0.55); font-size: 11px; letter-spacing: 0.3em; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.toast {
  position: fixed; bottom: 44px; left: 50%; transform: translateX(-50%); z-index: 400;
  background: var(--ink); color: var(--bg); padding: 13px 28px; font-size: 12px; letter-spacing: 0.1em;
  border-radius: var(--r); animation: fadeUp 0.3s ease;
}

/* ============================================================
   关于页
   ============================================================ */
.about-wrap { max-width: 760px; margin: 0 auto; padding: 90px 0 140px; }
.about-block { margin-bottom: 90px; }
.about-block .big { font-size: 18px; font-weight: 500; color: var(--ink); line-height: 2.1; letter-spacing: 0.04em; }
.about-block p { margin-bottom: 18px; font-size: 14px; color: var(--text-2); line-height: 2.1; }
.legal-block { border-top: 1px solid var(--hairline); padding: 50px 0; }
.legal-block h3 { font-size: 19px; font-weight: 700; margin-bottom: 22px; }
.legal-block p { font-size: 13.5px; color: var(--text-2); margin-bottom: 14px; line-height: 2; }
.legal-block .anchor-target { scroll-margin-top: 110px; }

/* ============================================================
   页脚 —— 哑光炭黑
   ============================================================ */
.site-footer { background-color: var(--ink); background-image: url('/img/bg-footer.jpg'); background-size: cover; background-position: center; color: #B9B6AD; }
.footer-inner { display: grid; grid-template-columns: 1.7fr 1fr 1fr 1fr; gap: 56px; padding: 96px 0 72px; }
.footer-brand .fb-en { font-size: 19px; font-weight: 600; letter-spacing: 0.36em; color: #F8F7F2; }
.footer-brand .fb-zh { font-size: 10px; letter-spacing: 0.32em; color: #85827A; margin-top: 8px; }
.footer-brand p { font-size: 12px; color: #85827A; margin-top: 22px; max-width: 340px; line-height: 2; letter-spacing: 0.05em; }
.footer-col h4 { font-size: 10px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--gold); margin-bottom: 22px; font-weight: 500; }
.footer-col a { display: block; font-size: 12.5px; color: #B9B6AD; padding: 6px 0; letter-spacing: 0.08em; transition: color var(--t); }
.footer-col a:hover { color: #F8F7F2; }
.footer-bottom { border-top: 1px solid rgba(248, 247, 242, 0.1); padding: 26px 0 32px; display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.footer-bottom span { font-size: 10.5px; color: #6E6B63; letter-spacing: 0.14em; }

/* ============================================================
   艺术家 / 作品档案 / 市场报告 / 搜索 / 专家与流程
   ============================================================ */
.artist-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 56px 3.5%; }
.artist-card { display: block; border-radius: var(--r); transition: transform var(--t), box-shadow var(--t); }
.artist-card:hover { transform: translateY(-2px); box-shadow: 0 14px 36px rgba(18, 18, 18, 0.06); }
.ac-media { aspect-ratio: 4/3; background: #EFEEE6; border-radius: var(--r); display: flex; align-items: center; justify-content: center; overflow: hidden; }
.ac-media img { width: 100%; height: 100%; object-fit: cover; border-radius: var(--r); }
.ac-mono { font-size: 46px; font-weight: 600; color: #C9C4B4; }
.ac-name { margin-top: 18px; font-size: 15.5px; font-weight: 600; color: var(--ink); }
.ac-sub { font-size: 12px; color: var(--text-3); margin-top: 2px; }
.ac-meta { font-size: 12px; color: var(--text-2); margin-top: 7px; }
.ac-count { font-size: 10.5px; color: var(--text-3); margin-top: 7px; letter-spacing: 0.14em; text-transform: uppercase; }

.artist-hero { display: grid; grid-template-columns: 0.86fr 1.14fr; gap: 80px; align-items: start; }
.ah-media { aspect-ratio: 4/3; background: #EFEEE6; border-radius: var(--r); display: flex; align-items: center; justify-content: center; overflow: hidden; }
.ah-media img { width: 100%; height: 100%; object-fit: cover; }
.ah-info .eyebrow { font-size: 11px; letter-spacing: 0.34em; text-transform: uppercase; color: var(--text-3); font-weight: 500; }
.ah-info h1 { font-size: 34px; font-weight: 700; margin: 14px 0 4px; }
.ah-sub { font-size: 15px; color: var(--text-2); letter-spacing: 0.06em; }

.archive-block { margin-top: 44px; border-top: 1px solid var(--hairline); padding-top: 30px; }
.archive-block h4 { font-size: 10.5px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--text-3); margin-bottom: 20px; font-weight: 500; }
.archive-row { display: grid; grid-template-columns: 150px 1fr; gap: 24px; padding: 14px 0; border-bottom: 1px solid var(--hairline-2); }
.archive-row .ak { font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--text-3); padding-top: 4px; font-weight: 500; }
.archive-row .av { font-size: 13.5px; color: var(--text-2); line-height: 2; }

.report-totals { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-bottom: 80px; }
.rt-item { border-top: 1px solid var(--hairline); padding-top: 26px; }
.rt-num { font-size: 42px; font-weight: 700; color: var(--ink); line-height: 1.1; }
.rt-lbl { font-size: 11px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--text-3); margin-top: 10px; font-weight: 500; }
.report-block { margin-bottom: 80px; }
.report-title { font-size: 12.5px; letter-spacing: 0.28em; text-transform: uppercase; color: var(--text-3); font-weight: 500; margin-bottom: 30px; }
.report-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.chart-bars { display: flex; align-items: stretch; gap: 16px; height: 200px; }
.chart-col { flex: 1; display: flex; flex-direction: column; justify-content: flex-end; align-items: center; gap: 12px; height: 100%; }
.chart-col .bar { width: 100%; max-width: 46px; background: var(--ink); opacity: 0.78; min-height: 3px; border-radius: 2px 2px 0 0; transition: height var(--t); }
.chart-col .bar-v { font-size: 13px; font-weight: 600; color: var(--ink); }
.chart-col .bar-l { font-size: 10px; letter-spacing: 0.1em; color: var(--text-3); }
.rank-rows { border-top: 1px solid var(--hairline); }
.rank-row { display: flex; align-items: baseline; gap: 20px; padding: 15px 0; border-bottom: 1px solid var(--hairline-2); }
.rank-row .rk { font-size: 13.5px; font-weight: 600; color: var(--ink); min-width: 96px; }
.rank-row .rv { font-size: 12.5px; color: var(--text-2); }
.rank-row .rp { margin-left: auto; font-size: 12px; color: var(--text-3); letter-spacing: 0.06em; }

/* 语言切换（六语言下拉） */
.lang-select { appearance: none; -webkit-appearance: none; background: transparent; border: none; font-size: 11.5px; letter-spacing: 0.06em; color: var(--text-2); cursor: pointer; padding: 4px 18px 4px 4px; background-image: linear-gradient(45deg, transparent 50%, var(--text-3) 50%), linear-gradient(135deg, var(--text-3) 50%, transparent 50%); background-position: calc(100% - 8px) 52%, calc(100% - 4px) 52%; background-size: 4px 4px, 4px 4px; background-repeat: no-repeat; transition: color var(--t); }
.lang-select:hover, .lang-select:focus { color: var(--ink); }

/* 成交价值走势图 */
.value-chart { margin-bottom: 44px; }
.vc-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 12px; }
.vc-cur { font-size: 13px; font-weight: 700; letter-spacing: 0.16em; color: var(--ink); }
.vc-max { font-size: 10.5px; letter-spacing: 0.12em; color: var(--text-3); }
.vc-svg { width: 100%; height: 200px; display: block; }
.vc-labels { display: flex; justify-content: space-between; margin-top: 10px; font-size: 9.5px; letter-spacing: 0.1em; color: var(--text-3); }

.search-form { display: flex; gap: 14px; max-width: 560px; }
.search-form input { flex: 1; background: transparent; border: none; border-bottom: 1px solid var(--ink); padding: 10px 2px; outline: none; font-size: 15px; letter-spacing: 0.03em; }

.specialist-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.specialist-card { border: 1px solid var(--hairline); border-radius: var(--r); padding: 26px 24px; }
.sp-name { font-size: 15px; font-weight: 600; color: var(--ink); }
.sp-title { font-size: 12.5px; color: var(--text-2); margin-top: 6px; line-height: 1.7; }
.steps-list { border-top: 1px solid var(--hairline); }
.step-row { display: grid; grid-template-columns: 64px 1fr; gap: 24px; padding: 24px 0; border-bottom: 1px solid var(--hairline-2); }
.step-no { font-size: 20px; font-weight: 700; color: var(--gold-deep); }
.step-title { font-size: 15px; font-weight: 600; color: var(--ink); margin-bottom: 6px; }
.step-desc { font-size: 13.5px; color: var(--text-2); line-height: 2; }

.nav-search { display: inline-flex; align-items: center; color: var(--ink); opacity: 0.72; transition: opacity var(--t); }
.nav-search:hover { opacity: 1; }

/* 无障碍：键盘焦点可见 */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }

/* ============================================================
   在线客服（站内会话面板 · 人工居间）
   ============================================================ */
.chat-wrap { position: fixed; inset: 0; z-index: 260; pointer-events: none; }
.chat-wrap .chat-mask { position: absolute; inset: 0; background: rgba(18, 18, 18, 0.3); opacity: 0; transition: opacity var(--t); }
.chat-wrap.open .chat-mask { opacity: 1; pointer-events: auto; }
.chat-panel {
  position: absolute; top: 0; right: 0; bottom: 0; width: 404px; max-width: 94vw;
  background: var(--bg); border-left: 1px solid var(--hairline);
  display: flex; flex-direction: column;
  transform: translateX(102%); transition: transform 0.38s var(--ease);
  box-shadow: -24px 0 64px rgba(18, 18, 18, 0.12);
}
.chat-wrap.open .chat-panel { transform: none; pointer-events: auto; }
.cp-head { display: flex; align-items: flex-start; justify-content: space-between; padding: 26px 28px 20px; border-bottom: 1px solid var(--hairline); }
.cp-title { font-size: 15px; font-weight: 600; letter-spacing: 0.06em; color: var(--ink); }
.cp-sub { font-size: 10.5px; letter-spacing: 0.18em; color: var(--text-3); margin-top: 4px; }
.cp-close { font-size: 22px; line-height: 1; color: var(--text-3); transition: color var(--t); }
.cp-close:hover { color: var(--ink); }
.cp-ctx { display: flex; align-items: center; gap: 14px; padding: 14px 28px; border-bottom: 1px solid var(--hairline-2); font-size: 11px; color: var(--text-3); min-height: 46px; flex-wrap: wrap; }
.cp-ctx-t { letter-spacing: 0.18em; text-transform: uppercase; }
.cp-back { font-size: 10.5px; letter-spacing: 0.16em; color: var(--ink); border-bottom: 1px solid var(--gold); padding-bottom: 2px; transition: opacity var(--t); }
.cp-back:hover { opacity: 0.6; }
.cp-closed { color: #A4552F; letter-spacing: 0.16em; }
.cp-body { flex: 1; overflow-y: auto; padding: 26px 26px 20px; display: flex; flex-direction: column; gap: 16px; }
.cmb { max-width: 86%; }
.cmb.me { align-self: flex-end; }
.cmb-t { font-size: 9.5px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--text-3); margin-bottom: 6px; }
.cmb.me .cmb-t { text-align: right; }
.cmb-c { background: #FFFFFF; border: 1px solid var(--hairline); border-radius: var(--r); padding: 12px 15px; font-size: 13.5px; line-height: 1.9; color: var(--text); white-space: pre-wrap; word-break: break-word; }
.cmb.me .cmb-c { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.cmb-time { font-size: 9.5px; color: var(--text-3); margin-top: 5px; letter-spacing: 0.1em; }
.cmb.me .cmb-time { text-align: right; }
.cmb-sys { align-self: center; max-width: 90%; text-align: center; font-size: 11.5px; line-height: 1.95; color: var(--text-3); background: rgba(18, 18, 18, 0.035); border-radius: var(--r); padding: 11px 15px; }
.cp-foot { border-top: 1px solid var(--hairline); padding: 16px 24px 20px; }
.cp-input { display: flex; gap: 10px; align-items: flex-end; }
.cp-input textarea { flex: 1; resize: none; border: 1px solid var(--hairline); border-radius: var(--r); background: #FFFFFF; padding: 10px 12px; font-size: 13.5px; line-height: 1.7; max-height: 120px; font-family: var(--font); color: var(--text); }
.cp-input textarea:focus { outline: none; border-color: var(--ink); }
.cp-note { font-size: 10px; color: var(--text-3); line-height: 1.8; margin-top: 12px; letter-spacing: 0.04em; }
.cvt { display: block; width: 100%; text-align: left; padding: 16px 0; border-bottom: 1px solid var(--hairline-2); position: relative; transition: opacity var(--t); }
.cvt:hover { opacity: 0.7; }
.cvt-top { display: flex; justify-content: space-between; gap: 12px; font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink); }
.cvt-time { color: var(--text-3); letter-spacing: 0.08em; text-transform: none; white-space: nowrap; }
.cvt-last { font-size: 12.5px; color: var(--text-2); margin-top: 7px; line-height: 1.8; }
.cvt-badge { position: absolute; right: 0; top: 36px; min-width: 17px; height: 17px; border-radius: 9px; background: var(--ink); color: var(--bg); font-size: 9.5px; line-height: 17px; text-align: center; padding: 0 5px; }
.cvt-closed { display: inline-block; margin-top: 6px; font-size: 10px; letter-spacing: 0.14em; color: var(--text-3); }

.chat-fab {
  position: fixed; right: 26px; bottom: 26px; z-index: 240;
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(251, 250, 247, 0.92); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--hairline); border-radius: var(--r);
  padding: 10px 15px; font-size: 11px; letter-spacing: 0.16em; color: var(--ink);
  transition: transform var(--t), box-shadow var(--t);
}
.chat-fab:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(18, 18, 18, 0.1); }
.chat-fab .cf-b { min-width: 16px; height: 16px; border-radius: 8px; background: var(--ink); color: var(--bg); font-size: 9.5px; line-height: 16px; text-align: center; padding: 0 4px; }

/* ============================================================
   V6 —— 全域能力：台账存证 · 展览 OVR · 期刊 · 市场指数 · 藏品 · 合规
   ============================================================ */

/* ---- 无障碍：跳转链接与焦点态（WCAG 2.1 AA） ---- */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--ink); outline-offset: 2px;
}
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--ink); color: var(--bg); padding: 12px 20px; font-size: 12px; letter-spacing: 0.14em;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ---- Cookie 同意条 ---- */
.consent-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 320;
  background: rgba(18, 18, 18, 0.97); color: #F2EDDD; backdrop-filter: blur(10px);
}
.consent-inner { max-width: 1280px; margin: 0 auto; padding: 22px 24px; display: flex; gap: 28px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.consent-text { max-width: 70ch; }
.consent-text strong { display: block; font-size: 12px; letter-spacing: 0.22em; text-transform: uppercase; margin-bottom: 8px; color: #C9A25A; }
.consent-text p { font-size: 12px; line-height: 1.9; color: rgba(243, 238, 223, 0.72); }
.consent-actions { display: flex; gap: 10px; }
.consent-btn { border: 1px solid #C9A25A; background: transparent; color: #F2EDDD; padding: 10px 20px; font-size: 11px; letter-spacing: 0.16em; transition: all var(--t); }
.consent-btn:hover { background: #C9A25A; color: #12100B; }
.consent-btn.ghost { border-color: rgba(243, 238, 223, 0.28); }

/* ---- 成交公示：检索栏与台账面板 ---- */
.tx-filter { max-width: 880px; margin: 0 auto 30px; display: flex; flex-wrap: wrap; gap: 10px; }
.tx-filter input, .tx-filter select {
  background: #FFFFFF; border: 1px solid #E8E4DA; padding: 10px 14px; font-size: 12.5px; font-family: var(--font); color: var(--text); min-width: 120px;
}
.tx-filter input[type="number"] { width: 120px; }
.tx-filter #tf-q { flex: 1; min-width: 160px; }
.ledger-panel { max-width: 880px; margin: 0 auto 46px; border: 1px solid var(--hairline); background: #FFFFFF; padding: 26px 30px; }
.ledger-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-bottom: 16px; border-bottom: 1px solid var(--hairline); }
.ledger-state { font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase; padding: 5px 12px; border: 1px solid currentColor; }
.ledger-state.ok { color: #4E7359; } .ledger-state.warn { color: #A4552F; }
.ledger-meta { display: flex; flex-wrap: wrap; gap: 30px; padding: 18px 0; font-size: 11.5px; letter-spacing: 0.12em; color: var(--text-3); text-transform: uppercase; }
.ledger-meta b { color: var(--ink); font-weight: 600; }
.ledger-meta b.ok { color: #4E7359; } .ledger-meta b.warn { color: #A4552F; }
.ledger-head-hash { background: #F7F5F0; border: 1px solid var(--hairline); padding: 12px 14px; overflow-x: auto; }
.ledger-head-hash code { font-family: "Inter", Consolas, monospace; font-size: 11.5px; letter-spacing: 0.04em; color: var(--ink); word-break: break-all; }
.ledger-verify { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin-top: 20px; }
.ledger-verify input { flex: 1; min-width: 220px; border: 1px solid var(--hairline); padding: 10px 12px; font-size: 12px; font-family: "Inter", Consolas, monospace; background: #FBFAF7; }
.ledger-result { margin-top: 14px; font-size: 12.5px; line-height: 1.9; color: var(--text-2); }
.ledger-result.ok { color: #4E7359; } .ledger-result.warn { color: #A4552F; }
.deal-date .deal-seal { display: block; font-style: normal; font-family: "Inter", Consolas, monospace; font-size: 10px; letter-spacing: 0.06em; color: var(--text-3); margin-top: 6px; }
.price-poa { font-family: var(--display); font-size: 17px; color: var(--ink); letter-spacing: 0.04em; }
.price-conv { display: block; font-size: 10.5px; color: var(--text-3); letter-spacing: 0.06em; margin-top: 3px; }
.price-hint { display: block; font-size: 11px; color: var(--text-3); letter-spacing: 0.06em; margin-top: 8px; max-width: 40ch; }
.avail-badge { display: inline-block; margin-left: 12px; font-size: 9.5px; letter-spacing: 0.18em; text-transform: uppercase; padding: 3px 9px; border: 1px solid var(--hairline); color: var(--text-3); }
.avail-badge.reserved, .avail-badge.hold { color: var(--gold-deep); border-color: var(--gold); }
.avail-badge.sold { color: var(--text-3); }
.avail-badge.private { color: var(--ink); border-color: var(--ink); }
.art-media .avail-badge { position: absolute; top: 14px; left: 14px; margin: 0; background: rgba(251, 250, 247, 0.92); }
.art-media { position: relative; }

/* ---- 线上展览 ---- */
.exh-list { display: grid; gap: 0; }
.exh-card { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; padding: 56px 0; border-bottom: 1px solid var(--hairline); }
.exh-card:first-child { border-top: 1px solid var(--ink); }
.exh-cover { aspect-ratio: 16/10; overflow: hidden; background: var(--ivory-3); }
.exh-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.4s var(--ease); }
.exh-card:hover .exh-cover img { transform: scale(1.035); }
.exh-state { font-size: 9.5px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--gold-deep); }
.exh-state.archived { color: var(--text-3); }
.exh-body h2, .exh-card h2 { font-family: var(--display); font-weight: 300; font-size: clamp(26px, 3vw, 40px); line-height: 1.2; margin: 14px 0 12px; }
.exh-sub { font-size: 14px; color: var(--text-2); line-height: 1.95; max-width: 46ch; }
.exh-meta { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 24px; font-size: 10.5px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--text-3); }
.exh-strip { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.exh-strip .exh-card { grid-template-columns: 1fr; gap: 22px; padding: 0; border: none; }
.exh-strip .exh-cover { aspect-ratio: 4/3; }
.exh-strip .exh-card h2 { font-size: clamp(20px, 2.1vw, 26px); }
.exh-hero { position: relative; min-height: 62vh; display: flex; align-items: flex-end; background: #0D0B08; overflow: hidden; }
.exh-hero-bg { position: absolute; inset: 0; }
.exh-hero-bg img { width: 100%; height: 100%; object-fit: cover; opacity: 0.72; }
.exh-hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(8, 7, 4, 0.5) 0%, rgba(8, 7, 4, 0.15) 45%, rgba(8, 7, 4, 0.82) 100%); }
.exh-hero-inner { position: relative; z-index: 2; padding: 72px 0 62px; color: #F5F1E4; }
.exh-hero-inner h1 { font-family: var(--display); font-weight: 300; font-size: clamp(34px, 5.4vw, 76px); line-height: 1.1; margin: 18px 0 16px; }
.exh-hero-inner p { font-size: 15px; color: rgba(243, 238, 223, 0.75); max-width: 56ch; line-height: 1.9; }
.exh-hero-inner .eyebrow { color: #C9A25A; font-size: 10px; letter-spacing: 0.4em; text-transform: uppercase; }
.exh-curator { margin-top: 22px; font-size: 10.5px; letter-spacing: 0.24em; text-transform: uppercase; color: rgba(243, 238, 223, 0.55); }
.curator-note { max-width: 760px; margin: 0 auto 70px; font-size: 15px; line-height: 2.1; color: var(--text-2); }
.curator-note p { margin-bottom: 20px; }
.ovr-list { display: grid; gap: 110px; }
.ovr-item { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 72px; align-items: center; }
.ovr-item.alt .ovr-media { order: 2; }
.ovr-media { display: block; aspect-ratio: 4/5; overflow: hidden; background: var(--ivory-3); }
.ovr-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.5s var(--ease); }
.ovr-media:hover img { transform: scale(1.04); }
.ovr-no { font-family: var(--display); font-size: 40px; color: var(--gold); opacity: 0.55; display: block; margin-bottom: 18px; }
.ovr-info h2 { font-family: var(--display); font-weight: 300; font-size: clamp(26px, 3.2vw, 42px); line-height: 1.2; margin-bottom: 12px; }
.ovr-artist { font-family: var(--display); font-style: italic; font-size: 17px; color: var(--text-2); margin-bottom: 14px; }
.ovr-specs { font-size: 11.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-3); margin-bottom: 20px; }
.ovr-note { font-size: 14.5px; line-height: 2.05; color: var(--text-2); margin-bottom: 22px; max-width: 52ch; }
.ovr-price { font-family: var(--display); font-size: 22px; margin-bottom: 26px; }

/* ---- 期刊 ---- */
.jr-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px 48px; }
.jr-card { display: block; }
.jr-card.lead { grid-column: 1/-1; display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 48px; align-items: center; }
.jr-cover { aspect-ratio: 16/10; overflow: hidden; background: var(--ivory-3); margin-bottom: 22px; }
.jr-card.lead .jr-cover { margin: 0; aspect-ratio: 4/3; }
.jr-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.4s var(--ease); }
.jr-card:hover .jr-cover img { transform: scale(1.04); }
.jr-meta { display: flex; gap: 18px; font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--text-3); margin-bottom: 14px; }
.jr-card h2 { font-family: var(--display); font-weight: 300; font-size: clamp(21px, 2.2vw, 30px); line-height: 1.3; margin-bottom: 12px; }
.jr-card.lead h2 { font-size: clamp(28px, 3.4vw, 44px); }
.jr-card p { font-size: 14px; line-height: 2; color: var(--text-2); max-width: 54ch; }
.article-wrap { max-width: 760px; padding: 90px 0 120px; }
.art-head { margin-bottom: 44px; }
.art-head .eyebrow { font-size: 10px; letter-spacing: 0.4em; text-transform: uppercase; color: var(--gold-deep); }
.art-head h1 { font-family: var(--display); font-weight: 300; font-size: clamp(30px, 4.4vw, 56px); line-height: 1.18; margin: 20px 0; }
.art-dek { font-size: 17px; line-height: 1.9; color: var(--text-2); font-family: var(--display); font-style: italic; }
/* 注意：此处原为文章页署名行样式，类名 .art-meta 与作品卡片信息区同名，
   曾导致卡片标题/作者/材质被塞进 flex 行随机折行（排版不齐）。
   现收窄为文章页专用，卡片信息区改为严格的纵向结构（见 gallery.css） */
.article-byline { display: flex; flex-wrap: wrap; gap: 20px; align-items: center; margin-top: 26px; font-size: 10.5px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--text-3); }
.art-cover { aspect-ratio: 16/9; overflow: hidden; margin-bottom: 48px; }
.art-cover img { width: 100%; height: 100%; object-fit: cover; }
.art-text p { font-size: 16px; line-height: 2.15; color: var(--text); margin-bottom: 28px; }
.art-foot { margin-top: 60px; border-top: 1px solid var(--hairline); padding-top: 30px; }

/* ---- 市场指数 ---- */
.stat-grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 26px; margin-bottom: 56px; }
.stat-grid-4 .stat-card { border: 1px solid var(--hairline); background: #FFFFFF; padding: 28px 26px; }
.stat-grid-4 .num { font-family: var(--display); font-weight: 300; font-size: 42px; line-height: 1; }
.stat-grid-4 .lbl { font-size: 10px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--gold-deep); margin-top: 14px; }
.stat-grid-4 .sub { font-size: 11.5px; color: var(--text-3); margin-top: 10px; line-height: 1.8; }

/* ---- 信任中心 / 侵权 / 无障碍 ---- */
.trust-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 26px; margin-bottom: 56px; }
.trust-card { border: 1px solid var(--hairline); background: #FFFFFF; padding: 32px 30px; }
.trust-card h3 { font-family: var(--display); font-weight: 400; font-size: 20px; margin-bottom: 14px; }
.trust-card p { font-size: 13.5px; line-height: 2; color: var(--text-2); }
.partner-row { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 18px; }
.partner { border: 1px solid var(--hairline); padding: 10px 18px; font-size: 11.5px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--text-2); }
.trust-links { display: flex; flex-wrap: wrap; gap: 12px 28px; }
.trust-links a { font-size: 13px; color: var(--ink); border-bottom: 1px solid var(--gold); padding-bottom: 3px; }
.a11y-list { list-style: none; }
.a11y-list li { font-size: 13.5px; line-height: 2.05; color: var(--text-2); padding: 12px 0 12px 26px; border-bottom: 1px solid var(--hairline); position: relative; }
.a11y-list li::before { content: "✓"; position: absolute; left: 0; color: var(--gold-deep); }
.code-block { background: #F7F5F0; border: 1px solid var(--hairline); padding: 18px; font-family: "Inter", Consolas, monospace; font-size: 12px; line-height: 1.9; overflow-x: auto; color: var(--ink); margin-bottom: 14px; }

/* ---- 个人藏品与估值 ---- */
.toolbar-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; margin-bottom: 26px; }
.col-list { display: grid; gap: 0; }
.col-item { display: flex; gap: 24px; align-items: flex-start; justify-content: space-between; padding: 22px 0; border-bottom: 1px solid var(--hairline); }
.col-title { font-family: var(--display); font-size: 19px; }
.col-sub { font-size: 12px; color: var(--text-3); letter-spacing: 0.1em; margin-top: 6px; }
.col-meta { font-size: 12px; color: var(--text-2); margin-top: 6px; }
.col-notes { font-size: 12.5px; color: var(--text-3); margin-top: 8px; line-height: 1.9; }
.col-ops { display: flex; gap: 8px; flex-wrap: wrap; }
.val-reply { margin-top: 12px; border-left: 2px solid var(--gold); padding: 10px 0 10px 14px; font-size: 13px; line-height: 1.95; color: var(--text-2); }

/* ---- 私人洽购空间 ---- */
.room-code-form { display: flex; gap: 12px; margin-top: 30px; }
.room-code-form input { border: 1px solid var(--hairline); background: #FFFFFF; padding: 12px 16px; font-family: "Inter", Consolas, monospace; letter-spacing: 0.2em; text-transform: uppercase; min-width: 220px; }

/* ---- 页脚订阅与台账状态 ---- */
.foot-sub { display: flex; gap: 8px; margin: 14px 0 20px; }
.foot-sub input { flex: 1; background: transparent; border: 1px solid rgba(243, 238, 223, 0.22); color: inherit; padding: 9px 12px; font-size: 12px; font-family: var(--font); }
.foot-sub button { border: 1px solid var(--gold); background: transparent; color: var(--gold); padding: 9px 16px; font-size: 11px; letter-spacing: 0.14em; transition: all var(--t); }
.foot-sub button:hover { background: var(--gold); color: #12100B; }
.foot-note { font-size: 11.5px; line-height: 1.85; opacity: 0.6; margin-bottom: 6px; }
.foot-ledger { font-size: 10.5px; letter-spacing: 0.14em; color: var(--gold); }
.foot-ledger.warn { color: #C58F6F; }

@media (max-width: 1024px) {
  .ovr-item, .ovr-item.alt .ovr-media { grid-template-columns: 1fr; order: 0; }
  .ovr-item { gap: 34px; }
  .ovr-list { gap: 76px; }
  .exh-card { grid-template-columns: 1fr; gap: 26px; padding: 40px 0; }
  .exh-strip { grid-template-columns: 1fr; gap: 40px; }
  .jr-grid { grid-template-columns: 1fr; gap: 44px; }
  .jr-card.lead { grid-column: auto; grid-template-columns: 1fr; }
  .jr-card.lead .jr-cover { margin-bottom: 22px; }
}
@media (max-width: 640px) {
  .consent-inner { padding: 18px 16px; gap: 16px; }
  .ledger-panel { padding: 20px 18px; }
  .ledger-verify { flex-direction: column; align-items: stretch; }
  .tx-filter input, .tx-filter select { min-width: 0; flex: 1 1 44%; }
  .article-wrap { padding: 56px 0 80px; }
  .ovr-no { font-size: 30px; }
  .col-item { flex-direction: column; gap: 14px; }
  .exh-hero-inner { padding: 52px 0 44px; }
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1180px) {
  .art-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 1024px) {
  .art-grid { grid-template-columns: repeat(2, 1fr); gap: 48px 4%; }
  .artist-grid { grid-template-columns: repeat(2, 1fr); }
  .artist-hero { grid-template-columns: 1fr; gap: 44px; }
  .report-cols { grid-template-columns: 1fr; gap: 40px; }
  .specialist-grid { grid-template-columns: 1fr; gap: 16px; }
  .post-grid { grid-template-columns: repeat(2, 1fr); }
  .detail-layout { grid-template-columns: 1fr; gap: 56px; }
  .values { padding: 110px 0 90px; }
  .records-card { padding: 8px 30px; }
  /* 汉堡菜单 */
  .nav-burger { display: block; justify-self: end; }
  .header-inner { grid-template-columns: auto 1fr auto; }
  .main-nav {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; gap: 0; background: var(--bg);
    padding: 10px 5vw 26px; border-bottom: 1px solid var(--hairline);
  }
  .site-header.menu-open .main-nav { display: flex; }
  .main-nav a { text-align: left; padding: 13px 0; border-bottom: 1px solid var(--hairline-2); }
  .main-nav a::after { display: none; }
}
@media (max-width: 640px) {
  .container { padding: 0 22px; }
  .hero { min-height: 88vh; }
  .hero-cn { letter-spacing: 0.18em; font-size: 14px; }
  .section { padding: 80px 0; }
  .values { padding: 80px 0 60px; }
  .v-item { padding: 24px 0; }
  .art-grid { grid-template-columns: 1fr; gap: 44px; }
  .post-grid { grid-template-columns: 1fr; gap: 40px; }
  .records-card { padding: 6px 22px; }
  .record-row, .deal-row { padding: 20px 0; gap: 14px; }
  .deal-artist { font-size: 14.5px; }
  .record-artist { font-size: 12.5px; }
  .footer-inner { grid-template-columns: 1fr; gap: 44px; padding: 64px 0 52px; }
  .modal { padding: 40px 26px; }
  .detail-wrap { padding-top: 36px; }
  .filter-bar { gap: 18px 26px; }
  .gallery-thumbs img { width: 58px; height: 58px; }
  .year-head .yh { font-size: 18px; }
  .work-nav { flex-direction: column; gap: 12px; }
  .nav-user { gap: 10px; font-size: 10.5px; }
  .artist-grid { grid-template-columns: 1fr; gap: 40px; }
  .report-totals { grid-template-columns: 1fr; gap: 24px; }
  .archive-row { grid-template-columns: 1fr; gap: 6px; }
  .chart-bars { gap: 8px; height: 160px; }
  .nav-search { display: none; }
  .chat-panel { width: 100%; max-width: none; }
  .chat-fab { right: 16px; bottom: 16px; padding: 10px 12px; }
  .chat-fab .cf-t { display: none; }
  .cp-head { padding: 20px 20px 16px; }
  .cp-body { padding: 20px 18px; }
  .cp-foot { padding: 14px 16px 16px; }
}