@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Noto+Serif+SC:wght@500;700;900&family=JetBrains+Mono:wght@400;600&display=swap');

/* =========================================================
   ExpoVista v9「博展汇」
   中性纸 · 墨色 · 焦橙 · 衬线标题 · 深色网格面板
   ========================================================= */
:root {
  /* 纸面与墨色：中性纸，去掉三文鱼色的“暖滤镜” */
  --paper: #F6F5F2;
  --paper-2: #EFEEE9;
  --card: #FFFFFF;
  --ink: #101014;
  --ink-2: #55555F;
  --ink-3: #8B8B95;
  --rule: #E4E3DD;
  --rule-dk: #CFCEC7;

  /* 强调色：只留一种，焦橙 */
  --ember: #C2410C;
  --ember-dk: #9A3308;
  --navy: #2A2A31;       /* 链接与次按钮落回墨色 */
  --gold: #7C7C85;       /* 原来的金线退成辅助灰 */
  --green: #1F6B4F;
  --up: #8A5A2B;         /* 倒计时：压低成赭色 */

  /* 字体 */
  --font-display: "Noto Serif SC", "Songti SC", Georgia, serif;
  --font-sans: "Inter", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", ui-monospace, monospace;

  /* 节奏 */
  --gutter: 40px;
  --container: 1280px;
  --nav-h: 98px;
  --radius: 2px;
  --ease: cubic-bezier(.25, .6, .25, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
::selection { background: var(--ember); color: #F6F5F2; }

html { -webkit-text-size-adjust: 100%; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: var(--navy); text-decoration: none; }
a:hover { color: var(--ember); }
button { font: inherit; cursor: pointer; color: inherit; }
input, textarea, select, button { font-family: inherit; }
ul { list-style: none; }

.serif { font-family: var(--font-display); }
.mono { font-family: var(--font-mono); }
.muted { color: var(--ink-2); }
.tiny { font-size: 12px; }
.hide-mobile { }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 var(--gutter); }

/* ================= 顶栏 ================= */
.topbar {
  background: var(--ink);
  color: #E8E7E2;
  font-size: 13px;
  border-bottom: 1px solid #000;
}
.topbar .container { display: flex; align-items: center; justify-content: space-between; min-height: 34px; gap: 16px; }
.topbar .l { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.topbar .r { display: flex; align-items: center; gap: 20px; }
.topbar a { color: #E8E7E2; opacity: .82; }
.topbar a:hover { opacity: 1; color: #F6F5F2; }
.topbar .live { display: inline-flex; align-items: center; gap: 8px; color: #F0EFEA; font-weight: 500; }
.topbar .live i { width: 6px; height: 6px; border-radius: 50%; background: #4FA57F; }

/* ================= 报头 ================= */
.masthead {
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
}
.masthead .container {
  display: flex;
  align-items: stretch;
  gap: 40px;
  height: 64px;
}
.logo { display: flex; align-items: center; flex: none; }
.logo img { display: block; height: 40px; width: auto; }
.head-actions { display: flex; align-items: center; gap: 12px; margin-left: auto; }

.mast-search {
  display: flex;
  align-items: center;
  gap: 8px;
  position: relative;
  background: var(--card);
  border: 1px solid var(--rule-dk);
  border-radius: var(--radius);
  padding: 0 12px;
  height: 40px;
  width: 260px;
  color: var(--ink-3);
  transition: border-color .18s var(--ease);
}
.mast-search:focus-within { border-color: var(--ink); }
.mast-search input {
  flex: 1; min-width: 0; border: 0; background: transparent; outline: none;
  font-size: 14px; color: var(--ink); height: 100%;
}
.mast-search input::placeholder { color: var(--ink-3); }
.mast-search kbd {
  font-family: var(--font-mono); font-size: 11px; color: var(--ink-3);
  border: 1px solid var(--rule); border-radius: 3px; padding: 2px 4px; background: var(--paper-2); flex: none;
}
.mast-search .sug {
  position: absolute; top: calc(100% + 6px); left: 0; right: 0;
  background: var(--card); border: 1px solid var(--rule-dk); border-radius: var(--radius);
  max-height: 340px; overflow-y: auto; z-index: 60;
  opacity: 0; pointer-events: none; transform: translateY(-4px);
  transition: opacity .18s, transform .18s;
}
.mast-search .sug.open { opacity: 1; pointer-events: auto; transform: none; }
.mast-search .sug .grp {
  font-size: 12px; color: var(--ink-3);
  padding: 8px 16px 4px;
}
.mast-search .sug a {
  display: flex; align-items: center; gap: 12px; padding: 8px 16px; color: var(--ink);
  border-top: 1px solid var(--paper-2);
}
.mast-search .sug a:hover { background: var(--paper-2); color: var(--ink); }
.mast-search .sug a img { width: 34px; height: 34px; object-fit: cover; border-radius: 2px; flex: none; }
.mast-search .sug a .k { color: var(--ink-2);
  width: 34px; height: 34px; flex: none; display: grid; place-items: center;
  background: var(--paper-2); border: 1px solid var(--rule); border-radius: 2px;
  font-family: var(--font-mono); font-size: 12px;
}
.mast-search .sug a b { display: block; font-size: 13px; font-weight: 500; line-height: 1.4; }
.mast-search .sug a small { display: block; font-size: 12px; color: var(--ink-3); }

/* 主导航：和 logo 同一行 */
.mainnav { display: flex; align-items: stretch; gap: 28px; }
.mainnav a {
  display: inline-flex; align-items: center;
  padding: 0; font-size: 15px; font-weight: 400; color: var(--ink-2);
  border-bottom: 2px solid transparent; margin-bottom: -1px; position: relative; white-space: nowrap;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}
.mainnav a:hover { color: var(--ink); }
.mainnav a.is-active { color: var(--ink); border-bottom-color: var(--ink); font-weight: 500; }

/* 移动抽屉 */
.mobile-btn {
  display: none; width: 40px; height: 40px; place-items: center;
  background: transparent; border: 1px solid var(--rule-dk); border-radius: var(--radius); color: var(--ink);
}
.drawer {
  position: fixed; top: 0; right: 0; bottom: 0; width: min(320px, 84vw);
  background: var(--paper); border-left: 1px solid var(--rule-dk);
  padding: 24px; z-index: 90; transform: translateX(102%);
  transition: transform .28s var(--ease); overflow-y: auto;
}
.drawer.open { transform: none; }
.drawer a {
  display: block; padding: 12px 4px; font-size: 16px; font-weight: 500;
  border-bottom: 1px solid var(--rule); color: var(--ink);
}
.drawer a.small { font-size: 14px; color: var(--ink-2); }
.drawer a:hover, .drawer a.m-auth { color: var(--ember); }
.drawer-mask {
  position: fixed; inset: 0; background: rgba(16, 16, 20, .4); z-index: 80;
  opacity: 0; pointer-events: none; transition: opacity .25s;
}
.drawer-mask.open { opacity: 1; pointer-events: auto; }

/* ================= 按钮 ================= */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 38px; padding: 0 16px;
  background: var(--paper); color: var(--ink);
  border: 1px solid var(--ink); border-radius: var(--radius);
  font-size: 14px; font-weight: 500;
  transition: background-color .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease), transform .12s var(--ease);
  white-space: nowrap;
}
.btn:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.btn:active { transform: scale(.98); }
.btn:focus-visible, a:focus-visible, button:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.btn-sm { height: 32px; padding: 0 12px; font-size: 13px; }
.btn-lg { height: 46px; padding: 0 24px; font-size: 15px; }
.btn-block { width: 100%; }
.btn-ember { background: var(--ember); color: #F6F5F2; border-color: var(--ember); }
.btn-ember:hover { background: var(--ember-dk); border-color: var(--ember-dk); color: #F6F5F2; }
.btn-navy { background: var(--navy); color: #F0EFEA; border-color: var(--navy); }
.btn-navy:hover { background: #3A3A42; border-color: #3A3A42; color: #F0EFEA; }
.btn-outline { background: transparent; border-color: var(--rule-dk); color: var(--ink); }
.btn-outline:hover { background: var(--paper-2); border-color: var(--ink); color: var(--ink); }
.btn-gold { background: var(--gold); border-color: var(--gold); color: #FFFDF8; }
.btn-gold:hover { background: #8E6E22; border-color: #8E6E22; color: #FFFDF8; }
.btn .ico { display: inline-flex; }

/* ================= 状态与标签 ================= */
.st {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 12px; font-weight: 400;
  padding: 2px 8px; border-radius: 2px; border: 1px solid; white-space: nowrap;
}
.st i { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.st.s-up { color: var(--ink-2); border-color: var(--rule-dk); background: transparent; }
.st.s-up.soon { color: #F6F5F2; border-color: var(--ember); background: var(--ember); }
.st.s-on { color: var(--green); border-color: rgba(31, 107, 79, .35); background: transparent; }
.st.s-end { color: var(--ink-3); border-color: var(--rule); background: transparent; }

.tag {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 12px; font-weight: 500; padding: 4px 8px; border-radius: 2px;
  background: var(--paper-2); color: var(--ink-2); border: 1px solid var(--rule);
}
.tag-ind { background: var(--paper-2); color: var(--ink); border-color: var(--rule-dk); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: 13px; font-weight: 500;
  color: var(--ink-3);
}
.eyebrow.gold { color: var(--gold); }
.eyebrow.ink { color: var(--ink-2); }

/* ================= 卡片（展会简报卡） ================= */
.card.exh {
  display: flex; flex-direction: column;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .18s;
}
.card.exh:hover { border-color: var(--rule-dk); }
.card.exh .cover { position: relative; aspect-ratio: 16 / 9; background: var(--paper-2); overflow: hidden; }
.card.exh .cover img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.85); }
.card.exh .cover .st { position: absolute; left: 10px; top: 10px; background: var(--card); }
.card.exh .body { padding: 16px 20px; display: flex; flex-direction: column; gap: 8px; flex: 1; min-width: 0; }
.card.exh .meta { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--ink-3); font-weight: 500; }
.card.exh .meta .ed, .card.exh .meta .dot { color: var(--ink-3); font-weight: 400; }
.card.exh h3 { font-family: var(--font-display); font-size: 20px; font-weight: 600; line-height: 1.35; color: var(--ink); }
.card.exh h3:hover { color: var(--ember); }
.card.exh .facts { display: flex; flex-wrap: wrap; gap: 4px 20px; margin-top: auto; padding-top: 12px; border-top: 1px solid var(--paper-2); }
.card.exh .facts div { display: flex; align-items: baseline; gap: 8px; min-width: 0; }
.card.exh .facts dt { font-size: 11px; letter-spacing: .02em; color: var(--ink-3); flex: none; }
.card.exh .facts dd { font-size: 13px; font-family: var(--font-mono); color: var(--ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.card.exh .foot { display: flex; align-items: center; gap: 12px; padding-top: 12px; border-top: 1px solid var(--paper-2); }
.card.exh .foot .no { font-family: var(--font-mono); font-size: 12px; color: var(--ink-3); letter-spacing: .04em; }
.card.exh .foot .topic-flag { display: inline-flex; align-items: center; gap: 4px; font-size: 12px; font-weight: 500; color: var(--ink); }
.card.exh .foot .topic-flag.n { color: var(--ink-3); font-weight: 400; }
.card.exh .foot .topic-flag:hover { color: var(--ember); }
.card.exh .foot .heart { margin-left: auto; background: transparent; border: 0; color: var(--ink-3); padding: 4px; transition: color .18s var(--ease); }
.card.exh .foot .heart:hover { color: var(--ember); }
.card.exh .foot .heart.on { color: var(--ember); fill: var(--ember); }

/* ================= 数据表 ================= */
.dtable { width: 100%; border-collapse: collapse; background: var(--card); font-size: 13px; }
.dtable .c-topic, .dtable .c-stat { white-space: nowrap; }
.dtable th {
  text-align: left; font-size: 11px; letter-spacing: .02em;
  color: var(--ink-3); font-weight: 500; padding: 12px;
  border-bottom: 2px solid var(--ink); white-space: nowrap;
}
.dtable td { padding: 12px; border-bottom: 1px solid var(--paper-2); vertical-align: middle; }
.dtable tbody tr { transition: background .15s; }
.dtable tbody tr:hover { background: var(--paper); }
.dtable .c-no { font-family: var(--font-mono); font-size: 12px; color: var(--ink-3); white-space: nowrap; }
.dtable .c-name a { display: flex; flex-direction: column; }
.dtable .c-name b { font-weight: 500; color: var(--ink); line-height: 1.4; }
.dtable .c-name small { font-family: var(--font-mono); font-size: 11px; color: var(--ink-3); }
.dtable .c-name a:hover b { color: var(--ember); }
.dtable .c-date, .dtable .c-city { font-family: var(--font-mono); font-size: 13px; white-space: nowrap; }
.dtable .c-venue { color: var(--ink-2); font-size: 13px; white-space: nowrap; }
.dtable .tl { font-size: 12px; font-weight: 500; color: var(--ink); border-bottom: 1px solid var(--rule-dk); }
.dtable .tl:hover { color: var(--ember); border-color: var(--ember); }
.dtable .tl.n { color: var(--ink-3); border: 0; font-weight: 400; }

/* ================= 面板 / 栏目头 ================= */
.panel { background: var(--paper-2); border: 1px solid var(--rule); border-radius: var(--radius); padding: 24px; }
.panel-flat { border-top: 3px solid var(--ink); padding-top: 16px; }

.sec-head { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; margin-bottom: 20px; padding-bottom: 12px; border-bottom: 1px solid var(--rule); }
.sec-head h2 { font-family: var(--font-display); font-size: 28px; font-weight: 600; line-height: 1.3; color: var(--ink); }
.sec-head h2 em { font-style: normal; color: var(--ember); }
.sec-head h2 + .eyebrow { margin-right: auto; }
.sec-head .more { font-size: 13px; font-weight: 500; color: var(--ink-2); white-space: nowrap; }
.sec-head .more:hover { color: var(--ember); }

/* ================= 广告位 ================= */
.ad {
  border: 1px solid var(--rule-dk); background: var(--card); border-radius: var(--radius);
  padding: 16px 20px; position: relative;
}
.ad .ad-label {
  font-size: 12px; color: var(--ink-3);
  font-weight: 400; margin-bottom: 8px;
}
.ad h4 { font-family: var(--font-display); font-size: 16px; font-weight: 600; color: var(--ink); margin-bottom: 4px; }
.ad p { font-size: 13px; color: var(--ink-2); }
.ad .ad-cta { margin-top: 12px; font-size: 13px; font-weight: 500; color: var(--ink); display: inline-flex; gap: 8px; align-items: center; }
.ad.strip { display: flex; align-items: center; gap: 24px; padding: 16px 24px; }
.ad.strip .ad-label { margin: 0; flex: none; }
.ad.strip h4 { margin: 0; }
.ad.strip p { margin: 0; }
.ad.strip .ad-cta { margin: 0 0 0 auto; flex: none; }

/* ================= 弹层 ================= */
.mask {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(16, 16, 20, .5);
  display: grid; place-items: center; padding: 20px;
  opacity: 0; transition: opacity .22s;
}
.mask.open { opacity: 1; }
.modal {
  background: var(--paper); border: 1px solid var(--rule-dk); border-radius: var(--radius);
  width: min(460px, 100%); max-height: 88vh; overflow-y: auto;
  transform: translateY(8px) scale(.99); transition: transform .22s var(--ease);
}
.mask.open .modal { transform: none; }
.modal .mh { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; padding: 20px 24px 12px; border-bottom: 1px solid var(--rule); }
.modal .mh h3 { font-family: var(--font-display); font-size: 20px; }
.modal .mh small { display: block; color: var(--ink-2); font-size: 13px; margin-top: 4px; }
.modal .mb { padding: 20px 24px; }
.modal .or { display: flex; align-items: center; gap: 12px; color: var(--ink-3); font-size: 12px; margin: 16px 0; }
.modal .or::before, .modal .or::after { content: ""; flex: 1; height: 1px; background: var(--rule); }

.toast-wrap { position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%); z-index: 110; display: flex; flex-direction: column; gap: 8px; align-items: center; }
.toast {
  display: flex; align-items: center; gap: 12px;
  background: var(--ink); color: #F0EFEA; font-size: 14px; font-weight: 500;
  padding: 12px 16px; border-radius: 2px;
  border-bottom: 2px solid var(--ember);
  transition: opacity .2s;
}
.toast .ico { display: grid; place-items: center; width: 18px; height: 18px; border-radius: 50%; background: var(--green); color: #fff; flex: none; }
.toast.err .ico { background: var(--ember); }

/* ================= 滚动揭示 ================= */
.reveal, .reveal.in { opacity: 1; transform: none; transition: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  * { animation: none !important; }
}

/* ================= 页脚 ================= */
.footer { background: var(--ink); color: #BEBDB8; margin-top: 80px; }
.footer .top {
  display: grid; grid-template-columns: 1.8fr 1fr 1fr 1fr; gap: 44px;
  padding: 52px 0 36px; border-bottom: 1px solid rgba(255, 255, 255, .1);
}
.footer .logo img, .auth-brand .logo img { filter: invert(1) brightness(1.6); opacity: .92; }
.footer .d { font-size: 14px; color: #A8A7A2; margin-top: 12px; max-width: 340px; }
.footer .news { display: flex; margin-top: 16px; max-width: 360px; }
.footer .news input {
  flex: 1; min-width: 0; height: 40px; border: 1px solid rgba(255, 255, 255, .22);
  background: rgba(255, 255, 255, .06); color: #F0EFEA; padding: 0 12px; outline: none; font-size: 13px;
}
.footer .news input::placeholder { color: #8C8B86; }
.footer .news input:focus { border-color: #B4B3AE; }
.footer .news button { height: 40px; padding: 0 16px; border: 0; background: #F0EFEA; color: var(--ink); font-size: 13px; font-weight: 500; }
.footer .news button:hover { background: #FFFFFF; }
.footer h5 { font-size: 13px; font-weight: 500; color: #8C8B86; margin-bottom: 12px; }
.footer ul li a { display: inline-block; color: #B4B3AE; font-size: 14px; padding: 4px 0; }
.footer ul li a:hover { color: #F6F5F2; }
.footer .bot { display: flex; justify-content: space-between; gap: 16px; padding: 16px 0 24px; font-size: 12px; color: #8C8B86; flex-wrap: wrap; }

/* ================= 响应式 ================= */
@media (max-width: 1180px) {
  .masthead .container { gap: 28px; }
  .mainnav { gap: 20px; }
  .mast-search { width: 180px; }
  .mast-search kbd { display: none; }
}
@media (max-width: 1024px) {
  .footer .top { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 860px) {
  :root { --gutter: 22px; --nav-h: 56px; }
  .hide-mobile { display: none !important; }
  .mobile-btn { display: grid; }
  .mast-search { width: 200px; }
  .masthead .container { height: 56px; gap: 16px; }
  .logo img { height: 32px; }
  .mainnav { display: none; }
  .sec-head h2 { font-size: 22px; }
  .card.exh h3 { font-size: 18px; }
  .footer .top { grid-template-columns: 1fr; gap: 28px; padding: 40px 0 28px; }
  .footer { margin-top: 56px; }
  .dtable .hide-sm { display: none; }
}
@media (max-width: 560px) {
  .mast-search { display: none; }
  .topbar .container { min-height: 30px; font-size: 12px; }
  .head-actions { gap: 8px; }
}