/* SinoEuroAI — 设计系统
   风格基准：苹果官网。白/浅灰底、近黑文字、单一蓝色强调、大标题、大量留白、细分割线。 */

:root {
  --bg: #ffffff;
  --bg-alt: #f5f5f7;
  --bg-dark: #000000;
  --text: #1d1d1f;
  --text-2: #6e6e73;
  --text-3: #86868b;
  --accent: #113121;
  --accent-hover: #1d4a35;
  --accent-soft: rgba(17, 49, 33, 0.07);
  --border: rgba(0, 0, 0, 0.08);
  --border-strong: rgba(0, 0, 0, 0.16);
  --dark-border: rgba(255, 255, 255, 0.14);
  --radius-s: 10px;
  --radius: 16px;
  --radius-l: 24px;
  --nav-h: 52px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC",
    "Helvetica Neue", Arial, sans-serif;
  --shadow-s: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-m: 0 4px 24px rgba(0, 0, 0, 0.08);
  --shadow-l: 0 12px 48px rgba(0, 0, 0, 0.14);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: rgba(17, 49, 33, 0.16); }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; display: block; }
[hidden] { display: none !important; }

.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.container-wide { max-width: 1280px; margin: 0 auto; padding: 0 24px; }

/* ---------- 导航 ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--nav-h);
  background: rgba(251, 251, 253, 0.82);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1080px; margin: 0 auto; padding: 0 24px;
  height: 100%; display: flex; align-items: center; gap: 28px;
}
.nav-logo {
  font-size: 17px; font-weight: 650; letter-spacing: -0.02em;
  color: var(--text); display: flex; align-items: center; gap: 9px;
}
.nav-logo:hover { text-decoration: none; opacity: 0.75; }
.nav-logo svg { width: 20px; height: 20px; }
.nav-mark { width: 30px; height: 28px; object-fit: contain; }
.nav-links { display: flex; align-items: center; gap: 26px; margin-left: auto; }
.nav-links a {
  font-size: 13.5px; color: var(--text-2); letter-spacing: 0.01em;
  white-space: nowrap;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); text-decoration: none; }
.nav-links a.active { color: var(--text); }
.nav-toggle {
  display: none; margin-left: auto; border: 0; background: none; cursor: pointer;
  width: 36px; height: 36px; color: var(--text);
}

/* ---------- 页脚 ---------- */
.footer {
  background: var(--bg-alt); padding: 48px 0 64px;
  font-size: 13px; color: var(--text-2);
}
.footer-cols {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px;
  padding-bottom: 32px; border-bottom: 1px solid var(--border);
}
.footer h4 { font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 12px; }
.footer-col a { display: block; color: var(--text-2); padding: 3px 0; }
.footer-col a:hover { color: var(--text); text-decoration: none; }
.footer-note { padding-top: 20px; color: var(--text-3); line-height: 1.7; }

/* ---------- Hero ---------- */
.hero {
  padding: calc(var(--nav-h) + 40px) 0 64px;
  text-align: center;
  background:
    radial-gradient(1200px 480px at 50% -12%, rgba(17, 49, 33, 0.07), transparent 68%),
    var(--bg);
}
.eyebrow {
  font-size: 14px; font-weight: 600; letter-spacing: 0.12em;
  color: var(--accent); text-transform: uppercase;
  margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(40px, 6.4vw, 76px);
  font-weight: 700; letter-spacing: -0.022em; line-height: 1.08;
  margin-bottom: 22px;
}
.hero .sub {
  font-size: clamp(18px, 2.4vw, 23px); line-height: 1.55; color: var(--text-2);
  max-width: 680px; margin: 0 auto 34px;
  font-weight: 400;
}
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  font-family: var(--font); font-size: 15px; font-weight: 500;
  padding: 11px 22px; border-radius: 980px; border: 0; cursor: pointer;
  background: var(--text); color: #fff; line-height: 1.2;
  transition: background 0.2s, transform 0.15s;
}
.btn:hover { background: #2c2c2e; text-decoration: none; }
.btn:active { transform: scale(0.98); }
.btn-ghost {
  background: transparent; color: var(--text);
  box-shadow: inset 0 0 0 1px var(--border-strong);
}
.btn-ghost:hover { background: var(--accent-soft); color: var(--accent); }
.btn-dark { background: var(--text); color: #fff; }
.btn-dark:hover { background: #2c2c2e; }
.section.dark .btn { background: #f5f5f7; color: #1d1d1f; }
.section.dark .btn:hover { background: #fff; }
.btn-sm { font-size: 13px; padding: 7px 15px; }

/* ---------- 统计带 ---------- */
.stats-band {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px;
  margin-top: 76px; text-align: center;
}
.stat b {
  display: block; font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 650; letter-spacing: -0.02em; line-height: 1.15;
  font-variant-numeric: tabular-nums;
}
.stat span { display: block; margin-top: 6px; font-size: 13px; color: var(--text-2); }

/* ---------- 区块 ---------- */
.section { padding: 108px 0; }
.section.alt { background: var(--bg-alt); }
.section.dark { background: var(--bg-dark); color: #f5f5f7; }
.section.dark .muted { color: #a1a1a6; }
.section-head { max-width: 720px; margin-bottom: 52px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 {
  font-size: clamp(30px, 4.4vw, 48px);
  font-weight: 700; letter-spacing: -0.02em; line-height: 1.12;
  margin-bottom: 14px;
}
.section-head p { font-size: 18px; color: var(--text-2); line-height: 1.6; }
.section.dark .section-head p { color: #a1a1a6; }
.muted { color: var(--text-2); }
.small { font-size: 13px; }

/* ---------- 卡片网格 ---------- */
.grid { display: grid; gap: 18px; }
.grid > * { min-width: 0; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

.card {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius-l); padding: 28px;
  display: flex; flex-direction: column;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.section.alt .card, .card.fill { background: var(--bg); }
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-m); }
.card h3 { font-size: 20px; font-weight: 650; letter-spacing: -0.01em; margin-bottom: 8px; }
.card p { font-size: 15px; color: var(--text-2); line-height: 1.6; }
.card .card-link {
  margin-top: auto; padding-top: 18px; font-size: 14.5px; font-weight: 500;
}
.card .card-link a { display: inline-flex; align-items: center; gap: 4px; }

/* bento：首个卡片占两列 */
.bento { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.bento .span2 { grid-column: span 2; }

.icon-tile {
  width: 44px; height: 44px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: var(--accent-soft); color: var(--accent);
  margin-bottom: 20px;
}
.icon-tile svg { width: 22px; height: 22px; }

/* ---------- 公司卡片 ---------- */
.co-card {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px 24px;
  display: flex; flex-direction: column; gap: 10px;
  cursor: pointer; text-align: left; font: inherit; color: inherit; width: 100%;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s;
}
.co-card:hover {
  transform: translateY(-2px); box-shadow: var(--shadow-m); border-color: var(--border-strong);
}
.co-card .co-top { display: flex; align-items: baseline; gap: 10px; }
.co-card .co-name { font-size: 16.5px; font-weight: 600; letter-spacing: -0.01em; }
.co-card .co-en { font-size: 13px; color: var(--text-3); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.co-card .co-desc {
  font-size: 14px; color: var(--text-2); line-height: 1.55;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  min-height: 43px;
}
.co-card .co-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.co-card .co-meta {
  margin-top: auto; padding-top: 10px; border-top: 1px solid var(--border);
  display: flex; align-items: center; gap: 8px;
  font-size: 12.5px; color: var(--text-3);
}
.co-card .co-meta .stage { color: var(--accent); font-weight: 500; }

/* ---------- 徽章 / 标签 ---------- */
.chip {
  display: inline-flex; align-items: center;
  font-size: 12px; line-height: 1; padding: 5px 10px;
  border-radius: 980px; background: var(--bg-alt); color: var(--text-2);
  white-space: nowrap;
}
.chip.blue { background: var(--accent-soft); color: var(--accent); }
.chip.dark { background: rgba(255,255,255,0.1); color: #d2d2d7; }

/* ---------- 筛选栏 ---------- */
.filterbar {
  position: sticky; top: var(--nav-h); z-index: 500;
  background: rgba(255, 255, 255, 0.88);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}
.filter-row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.filter-row select {
  appearance: none; -webkit-appearance: none;
  font-family: var(--font); font-size: 13.5px; color: var(--text);
  background: var(--bg-alt) url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%236e6e73' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat right 12px center;
  border: 0; border-radius: 980px; padding: 8px 30px 8px 16px;
  cursor: pointer; max-width: 200px;
  transition: background-color 0.2s;
}
.filter-row select:hover { background-color: #ebebed; }
.filter-row select.on { background-color: var(--accent-soft); color: var(--accent); font-weight: 500; }
.filter-search {
  flex: 1 1 220px; min-width: 180px; position: relative;
}
.filter-search input {
  width: 100%; font-family: var(--font); font-size: 14px;
  border: 0; border-radius: 980px; background: var(--bg-alt);
  padding: 9px 16px 9px 36px; color: var(--text); outline: none;
  transition: box-shadow 0.2s, background-color 0.2s;
}
.filter-search input::placeholder { color: var(--text-3); }
.filter-search input:focus { box-shadow: 0 0 0 3px rgba(17, 49, 33, 0.22); background: #fff; }
.filter-search svg {
  position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
  width: 15px; height: 15px; color: var(--text-3); pointer-events: none;
}
.result-meta {
  display: flex; align-items: baseline; justify-content: space-between;
  padding: 26px 0 18px; gap: 12px; flex-wrap: wrap;
}
.result-meta h1 { font-size: 26px; font-weight: 700; letter-spacing: -0.015em; }
.result-meta .count { font-size: 14px; color: var(--text-2); font-variant-numeric: tabular-nums; }

/* ---------- 加载更多 ---------- */
.loadmore { text-align: center; padding: 40px 0 8px; }
.loadmore .btn { min-width: 220px; }

/* ---------- 表格 ---------- */
.table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.table th {
  text-align: left; font-size: 12px; font-weight: 600; color: var(--text-3);
  text-transform: uppercase; letter-spacing: 0.06em;
  padding: 10px 14px; border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.table td { padding: 14px; border-bottom: 1px solid var(--border); vertical-align: top; }
.table tr { transition: background 0.15s; }
.table tbody tr:hover { background: var(--bg-alt); }
.table .t-title { font-weight: 600; letter-spacing: -0.01em; }
.table .t-sub { font-size: 12.5px; color: var(--text-3); margin-top: 2px; }
.table .t-desc { color: var(--text-2); font-size: 13.5px; line-height: 1.5; }
.table a { white-space: nowrap; }
.table-wrap { overflow-x: auto; }

/* ---------- 分段控件 ---------- */
.seg {
  display: inline-flex; background: var(--bg-alt); border-radius: 10px; padding: 3px;
  gap: 2px;
}
.seg button {
  font-family: var(--font); font-size: 13.5px; font-weight: 500;
  border: 0; background: transparent; color: var(--text-2);
  padding: 6px 16px; border-radius: 8px; cursor: pointer;
  transition: all 0.18s;
}
.seg button.on { background: #fff; color: var(--text); box-shadow: var(--shadow-s); font-weight: 600; }

/* ---------- Tabs ---------- */
.tabbar { display: flex; gap: 24px; border-bottom: 1px solid var(--border); margin-bottom: 36px; }
.tabbar button {
  font-family: var(--font); font-size: 15px; font-weight: 500; color: var(--text-2);
  background: none; border: 0; padding: 12px 2px; cursor: pointer;
  border-bottom: 2px solid transparent; margin-bottom: -1px;
  transition: color 0.2s, border-color 0.2s;
}
.tabbar button.on { color: var(--text); border-bottom-color: var(--text); }
.tabbar .n { font-size: 12px; color: var(--text-3); font-weight: 400; margin-left: 5px; }

/* ---------- 详情弹层 ---------- */
.modal-mask {
  position: fixed; inset: 0; z-index: 2000;
  background: rgba(0, 0, 0, 0.45);
  display: flex; align-items: center; justify-content: center;
  padding: 24px; opacity: 0; pointer-events: none; transition: opacity 0.25s;
}
.modal-mask.open { opacity: 1; pointer-events: auto; }
.modal {
  background: #fff; border-radius: var(--radius-l);
  max-width: 640px; width: 100%; max-height: 84vh; overflow-y: auto;
  padding: 36px 38px; position: relative;
  transform: translateY(14px) scale(0.98); transition: transform 0.25s;
  box-shadow: var(--shadow-l);
}
.modal-mask.open .modal { transform: none; }
.modal-close {
  position: absolute; top: 16px; right: 16px; width: 32px; height: 32px;
  border-radius: 50%; border: 0; background: var(--bg-alt); color: var(--text-2);
  font-size: 15px; cursor: pointer; line-height: 1;
  display: flex; align-items: center; justify-content: center;
}
.modal-close:hover { background: #e8e8ed; color: var(--text); }
.modal h2 { font-size: 24px; font-weight: 700; letter-spacing: -0.015em; margin-bottom: 4px; padding-right: 32px; }
.modal .m-en { font-size: 14px; color: var(--text-3); margin-bottom: 16px; }
.modal .m-chips { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 20px; }
.modal .m-body { font-size: 15px; line-height: 1.7; color: var(--text-2); margin-bottom: 22px; }
.modal dl { display: grid; grid-template-columns: 92px 1fr; gap: 10px 16px; font-size: 14px; }
.modal dt { color: var(--text-3); }
.modal dd { color: var(--text); line-height: 1.55; }
.modal dd a { word-break: break-all; }

/* ---------- 图表 ---------- */
.chart-block { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-l); padding: 30px 32px; }
.section.alt .chart-block { background: #fff; }
.chart-block h3 { font-size: 19px; font-weight: 650; letter-spacing: -0.01em; margin-bottom: 4px; }
.chart-block .chart-sub { font-size: 13.5px; color: var(--text-3); margin-bottom: 22px; }
.chart-legend { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 18px; font-size: 12.5px; color: var(--text-2); }
.chart-legend .li { display: inline-flex; align-items: center; gap: 6px; }
.chart-legend .sw { width: 10px; height: 10px; border-radius: 3px; }
svg.chart text { font-family: var(--font); fill: var(--text-3); font-size: 11px; }
svg.chart .gridline { stroke: rgba(0, 0, 0, 0.07); stroke-width: 1; }
svg.chart .axis-label { font-size: 11.5px; }

/* ---------- 深色区数字 ---------- */
.dark-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; text-align: center; }
.dark-stats b { display: block; font-size: clamp(30px, 4.4vw, 52px); font-weight: 650; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.dark-stats span { font-size: 14px; color: #86868b; }

/* ---------- 来源带 ---------- */
.source-strip {
  display: flex; flex-wrap: wrap; gap: 10px; justify-content: center;
}
.source-strip .chip { font-size: 13px; padding: 8px 16px; background: var(--bg-alt); color: var(--text-2); }
.source-strip .chip b { color: var(--text); font-weight: 600; margin-left: 5px; font-variant-numeric: tabular-nums; }

/* ---------- 机器人卡 ---------- */
.bot-card { display: flex; gap: 16px; align-items: flex-start; }
.bot-logo {
  width: 52px; height: 52px; border-radius: 12px; background: var(--bg-alt);
  display: flex; align-items: center; justify-content: center;
  font-weight: 650; font-size: 20px; color: var(--text-2); flex-shrink: 0;
  overflow: hidden;
}
.bot-logo img { width: 100%; height: 100%; object-fit: contain; padding: 4px; }
.bot-body { min-width: 0; flex: 1; }
.bot-body h3 { font-size: 16px; font-weight: 600; margin-bottom: 2px; }
.bot-body .rep { font-size: 13px; color: var(--text-2); margin-bottom: 10px; }
.bot-meta { font-size: 12.5px; color: var(--text-3); display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }

/* ---------- 研究员卡 ---------- */
.res-card h3 { font-size: 16px; font-weight: 600; }
.res-card .res-inst { font-size: 13.5px; color: var(--text-2); margin-bottom: 10px; }
.res-card .res-focus { font-size: 13.5px; color: var(--text-3); line-height: 1.55; }

/* ---------- 空状态 / 说明 ---------- */
.empty { text-align: center; padding: 80px 0; color: var(--text-3); font-size: 15px; }
.note {
  font-size: 13px; color: var(--text-3); line-height: 1.7;
  border-top: 1px solid var(--border); padding-top: 18px; margin-top: 40px;
}
.section.dark .note { border-top-color: var(--dark-border); color: #86868b; }

/* ---------- 滚动显现 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.8s cubic-bezier(0.25, 0.1, 0.25, 1), transform 0.8s cubic-bezier(0.25, 0.1, 0.25, 1); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 页头（数据页通用） ---------- */
.page-head { padding: calc(var(--nav-h) + 56px) 0 26px; }
.page-head h1 { font-size: clamp(32px, 4.6vw, 52px); font-weight: 700; letter-spacing: -0.02em; margin-bottom: 12px; }
.page-head p { font-size: 17px; color: var(--text-2); max-width: 640px; line-height: 1.6; }
.page-head .crumb { font-size: 13px; color: var(--text-3); margin-bottom: 18px; }
.page-head .crumb a { color: var(--text-3); }
.page-head .crumb a:hover { color: var(--accent); }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .grid-3, .bento { grid-template-columns: repeat(2, 1fr); }
  .bento .span2 { grid-column: span 2; }
  .stats-band { grid-template-columns: repeat(3, 1fr); gap: 28px 12px; }
  .footer-cols { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 660px) {
  body { font-size: 16px; }
  .grid-2, .grid-3, .bento { grid-template-columns: 1fr; }
  .bento .span2 { grid-column: span 1; }
  .stats-band { grid-template-columns: repeat(2, 1fr); }
  .dark-stats { grid-template-columns: 1fr; gap: 24px; }
  .section { padding: 72px 0; }
  .hero { padding: calc(var(--nav-h) + 28px) 0 48px; }
  .modal { padding: 28px 24px; }
  .modal dl { grid-template-columns: 1fr; gap: 2px 0; }
  .modal dt { margin-top: 12px; }
  .footer-cols { grid-template-columns: 1fr; }
  .filter-row select { max-width: none; flex: 1 1 45%; }

  .nav-links {
    display: none; position: absolute; top: var(--nav-h); left: 0; right: 0;
    background: rgba(251, 251, 253, 0.96);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    backdrop-filter: saturate(180%) blur(20px);
    flex-direction: column; align-items: flex-start; gap: 4px;
    padding: 12px 24px 20px; border-bottom: 1px solid var(--border);
  }
  .nav-links a { font-size: 17px; font-weight: 500; color: var(--text); padding: 8px 0; }
  .nav-toggle { display: block; }
  .nav.open .nav-links { display: flex; }
}

/* ---------- 导航登录位 ---------- */
.nav-auth { display: flex; align-items: center; gap: 14px; margin-left: 4px; }
.nav-auth a { font-size: 13.5px; color: var(--text-2); white-space: nowrap; }
.nav-auth a:hover { color: var(--text); text-decoration: none; }
.nav-auth .nav-cta {
  background: var(--text); color: #fff; font-weight: 500;
  padding: 5px 13px; border-radius: 980px; transition: background 0.2s;
}
.nav-auth .nav-cta:hover { background: #2c2c2e; color: #fff; }
.nav-user {
  width: 24px; height: 24px; border-radius: 50%; background: var(--text); color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 600;
}
@media (max-width: 660px) {
  .nav-links a { padding: 7px 0; }
  .nav-auth { margin-left: 0; }
  .nav-auth .nav-cta { display: inline-flex; }
}

/* ---------- 新版 hero：数字 + 大搜索框 ---------- */
.hero-badge {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 13px; color: var(--text-2);
  background: var(--bg-alt); border-radius: 980px; padding: 6px 14px;
  margin-bottom: 26px;
}
.hero-badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
.hero .focus-line {
  font-size: clamp(16px, 2vw, 20px); font-weight: 500; letter-spacing: 0.02em;
  color: var(--text); margin: -8px 0 18px;
}
.hero .focus-line span { color: var(--text-3); padding: 0 10px; font-weight: 400; }
.hero-search {
  display: flex; align-items: center; gap: 10px;
  max-width: 720px; margin: 44px auto 0;
  background: #fff; border: 1px solid var(--border);
  border-radius: 16px; padding: 8px 8px 8px 20px;
  box-shadow: var(--shadow-m);
  transition: box-shadow 0.2s, border-color 0.2s;
}
.hero-search:focus-within { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(17, 49, 33, 0.12), var(--shadow-m); }
.hero-search svg { width: 18px; height: 18px; color: var(--text-3); flex-shrink: 0; }
.hero-search input {
  flex: 1; min-width: 0; border: 0; outline: none;
  font-family: var(--font); font-size: 16px; color: var(--text);
  padding: 10px 0; background: transparent;
}
.hero-search input::placeholder { color: var(--text-3); }
.hero-search button {
  font-family: var(--font); font-size: 15px; font-weight: 500;
  background: var(--text); color: #fff; border: 0; border-radius: 12px;
  padding: 11px 26px; cursor: pointer; transition: background 0.2s;
}
.hero-search button:hover { background: #2c2c2e; }
.hero-links { margin-top: 18px; font-size: 13.5px; color: var(--text-3); }
.hero-links a { color: var(--accent); margin: 0 7px; }
.stats-band.compact { margin-top: 64px; }

/* ---------- 门禁 ---------- */
body.gate-locked .filterbar { display: none; }
.gate-wrap { display: flex; justify-content: center; padding: 72px 0 110px; }
.gate-card {
  max-width: 460px; width: 100%; text-align: center;
  background: var(--bg-alt); border-radius: var(--radius-l);
  padding: 48px 40px 42px;
}
.gate-lock {
  width: 52px; height: 52px; margin: 0 auto 22px; border-radius: 14px;
  background: #fff; color: var(--text-2);
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-s);
}
.gate-lock svg { width: 24px; height: 24px; }
.gate-card h2 { font-size: 23px; font-weight: 700; letter-spacing: -0.015em; margin-bottom: 10px; }
.gate-card p { font-size: 14.5px; color: var(--text-2); line-height: 1.65; }
.gate-actions { display: flex; gap: 12px; justify-content: center; margin-top: 26px; flex-wrap: wrap; }

/* ---------- 数据来源 logo 墙 ---------- */
.logo-wall {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px;
}
.source-tile {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px 14px 18px;
  text-align: center;
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}
.source-tile:hover { transform: translateY(-2px); box-shadow: var(--shadow-m); }
.source-tile .mono {
  width: 44px; height: 44px; margin: 0 auto 12px; border-radius: 12px;
  background: var(--bg-alt); color: var(--text);
  display: flex; align-items: center; justify-content: center;
  font-size: 19px; font-weight: 650; letter-spacing: -0.02em;
}
.source-tile .nm { font-size: 13px; font-weight: 550; color: var(--text); line-height: 1.35; }
.source-tile .ct { font-size: 12px; color: var(--text-3); margin-top: 3px; font-variant-numeric: tabular-nums; }
@media (max-width: 980px) { .logo-wall { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 660px) { .logo-wall { grid-template-columns: repeat(2, 1fr); } }

/* ---------- 预览模式解锁卡片 ---------- */
.lock-card { grid-column: 1 / -1; padding: 10px 0 30px; }
.lock-inner {
  background: var(--bg-alt); border-radius: var(--radius-l);
  padding: 40px 36px 36px; text-align: center;
}
.lock-inner h3 { font-size: 21px; font-weight: 700; letter-spacing: -0.015em; margin-bottom: 8px; }
.lock-inner p { font-size: 14px; color: var(--text-2); max-width: 460px; margin: 0 auto; line-height: 1.65; }
.table-wrap + .lock-card, #grid .lock-card { padding-bottom: 0; }
table .lock-row td { padding: 0; border-bottom: 0; }

/* ---------- Hero：左文右滚动窗（stalkr 布局） ---------- */
.hero-grid {
  display: grid; grid-template-columns: 1.05fr 0.95fr;
  gap: 64px; align-items: start;
}
.hero-left { text-align: left; padding-top: 34px; }
.hero-left .hero-badge { margin-bottom: 16px; }
.hero-left h1 { font-size: clamp(34px, 4.2vw, 58px); margin-bottom: 16px; }
.hero-left .sub { margin: 0 0 30px; max-width: 480px; font-size: 17px; }
.hero-left .hero-search { margin: 0 0 14px; }
.hero-note { font-size: 13px; color: var(--text-3); }
.hero-note a { color: var(--accent); }

.feed-side { min-width: 0; text-align: left; }
.feed-caption {
  text-align: center; font-size: 13px; color: var(--text-2);
  margin-bottom: 10px;
}
.feed-caption b { color: var(--text); font-weight: 600; }
.feed-caption .arrow { display: block; color: var(--accent); font-size: 15px; margin-top: 2px; }
.browser-win {
  background: #fff; border: 1px solid var(--border);
  border-radius: 20px; box-shadow: var(--shadow-l);
  overflow: hidden;
}
.browser-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 18px; border-bottom: 1px solid var(--border);
}
.browser-dots { display: flex; gap: 7px; }
.browser-dots i { width: 11px; height: 11px; border-radius: 50%; background: #e3e3e8; }
.browser-dots i:first-child { background: #ff5f57; }
.browser-dots i:nth-child(2) { background: #febc2e; }
.browser-dots i:last-child { background: #28c840; }
.browser-label {
  font-size: 11px; font-weight: 600; letter-spacing: 0.1em;
  color: var(--text-3); text-transform: uppercase;
}
.feed-viewport {
  height: 470px; overflow: hidden; position: relative;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 7%, #000 93%, transparent);
  mask-image: linear-gradient(to bottom, transparent, #000 7%, #000 93%, transparent);
}
.feed-track { will-change: transform; animation: feedScroll 42s linear infinite; }
.feed-viewport:hover .feed-track { animation-play-state: paused; }
@keyframes feedScroll {
  from { transform: translateY(0); }
  to   { transform: translateY(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .feed-track { animation: none; }
}
.feed-item { padding: 16px 22px; border-bottom: 1px solid var(--border); }
.feed-item .fi-top { display: flex; align-items: center; gap: 8px; margin-bottom: 5px; }
.feed-item .fi-name { font-size: 14.5px; font-weight: 600; letter-spacing: -0.01em; }
.feed-item .fi-line {
  font-size: 13px; color: var(--text-2); line-height: 1.5; margin-bottom: 6px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.feed-item .fi-meta { font-size: 12px; color: var(--text-3); }
.chip.t-co { background: var(--accent-soft); color: var(--accent); }
.chip.t-robot { background: rgba(29, 29, 31, 0.06); color: var(--text-2); }
.chip.t-inv { background: rgba(29, 29, 31, 0.06); color: var(--text-2); }

@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .feed-viewport { height: 320px; }
  .feed-caption { display: none; }
}

/* ---------- H1 轮换词 ---------- */
.cycle-word {
  color: var(--accent);
  display: inline-block;
  transition: opacity 0.38s ease, filter 0.38s ease, transform 0.38s ease;
}
.cycle-word.cycle-out { opacity: 0; filter: blur(12px); transform: translateY(10px); }
.cycle-word.cycle-in { opacity: 0; filter: blur(12px); transform: translateY(-10px); transition: none; }
@media (prefers-reduced-motion: reduce) {
  .cycle-word { transition: none; }
}