:root {
  --ink: #111c2a;
  --ink-soft: #5d6978;
  --paper: #f4f6f7;
  --surface: #ffffff;
  --line: #dce2e6;
  --line-dark: #b9c3ca;
  --blue: #1d4e89;
  --blue-soft: #e9f0f7;
  --red: #9f3a38;
  --red-soft: #f6e9e7;
  --jade: #277463;
  --jade-soft: #e5f1ee;
  --gold: #9b742b;
  --display: "Songti SC", "STSong", "Noto Serif CJK SC", serif;
  --body: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --mono: "SFMono-Regular", "Cascadia Mono", "Roboto Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  line-height: 1.55;
}
body.drawer-open { overflow: hidden; }
button, input, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }

.skip-link {
  position: fixed;
  z-index: 100;
  top: 8px;
  left: 8px;
  padding: 8px 12px;
  background: var(--ink);
  color: white;
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  z-index: 30;
  top: 0;
  border-bottom: 1px solid rgba(220, 226, 230, .9);
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(18px);
}
.header-inner {
  width: min(1280px, calc(100% - 48px));
  min-height: 64px;
  margin: auto;
  display: grid;
  grid-template-columns: minmax(230px, 1fr) auto minmax(230px, 1fr);
  align-items: center;
  gap: 24px;
}
.brand {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  gap: 11px;
  text-decoration: none;
}
.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 4px;
  background: var(--ink);
  color: white;
  font: 600 18px/1 var(--display);
}
.brand-copy strong { display: block; font-size: 15px; letter-spacing: .02em; }
.brand-copy small { display: block; margin-top: 2px; color: #8a95a1; font: 7px/1.4 var(--mono); letter-spacing: .12em; }
.site-header nav { display: flex; gap: 28px; }
.nav-link {
  position: relative;
  padding: 22px 0 20px;
  color: var(--ink-soft);
  font-size: 13px;
  text-decoration: none;
}
.nav-link::after { content: ""; position: absolute; right: 0; bottom: -1px; left: 0; height: 2px; background: transparent; }
.nav-link:hover, .nav-link.active { color: var(--ink); }
.nav-link.active::after { background: var(--ink); }
.header-meta { display: flex; justify-content: flex-end; align-items: center; gap: 16px; color: var(--ink-soft); font-size: 11px; }
.access-state { display: inline-flex; align-items: center; gap: 7px; }
.access-state i { width: 6px; height: 6px; border-radius: 50%; background: var(--jade); box-shadow: 0 0 0 4px rgba(39, 116, 99, .1); }
.logout-link { padding-left: 16px; border-left: 1px solid var(--line); text-decoration: none; }
.logout-link:hover { color: var(--ink); }

main, footer { width: min(1280px, calc(100% - 48px)); margin: auto; }
.eyebrow, .micro-label {
  margin: 0;
  color: var(--blue);
  font: 10px/1.4 var(--mono);
  letter-spacing: .15em;
  text-transform: uppercase;
}

.intro-panel {
  display: grid;
  grid-template-columns: 1.06fr .94fr;
  gap: clamp(52px, 8vw, 120px);
  align-items: center;
  min-height: 520px;
  padding: 72px 0 66px;
  border-bottom: 1px solid var(--ink);
}
.intro-main h1 {
  margin: 17px 0 21px;
  font: 600 clamp(52px, 6vw, 76px)/1.03 var(--display);
  letter-spacing: -.065em;
}
.intro-main h1 span { color: var(--blue); }
.hero-intro { max-width: 640px; margin: 0; color: var(--ink-soft); font-size: 15px; line-height: 1.9; }
.hero-search {
  display: grid;
  grid-template-columns: 22px 1fr auto;
  align-items: center;
  gap: 10px;
  width: min(580px, 100%);
  min-height: 54px;
  margin-top: 31px;
  padding: 0 14px 0 17px;
  border: 1px solid var(--line-dark);
  background: white;
  box-shadow: 0 10px 30px rgba(17, 28, 42, .05);
}
.hero-search i, .compact-search i {
  position: relative;
  width: 14px;
  height: 14px;
  border: 1.5px solid #8b97a2;
  border-radius: 50%;
}
.hero-search i::after, .compact-search i::after {
  content: "";
  position: absolute;
  right: -4px;
  bottom: -3px;
  width: 6px;
  height: 1.5px;
  background: #8b97a2;
  transform: rotate(45deg);
}
.hero-search input, .compact-search input {
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
}
.hero-search input { height: 52px; font-size: 14px; }
.hero-search kbd { padding: 3px 7px; border: 1px solid var(--line); border-radius: 3px; background: var(--paper); color: #87929d; font: 10px/1 var(--mono); }
.hero-search:focus-within { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(29, 78, 137, .08); }

.coverage-ledger {
  position: relative;
  padding: 30px;
  overflow: hidden;
  border-top: 3px solid var(--ink);
  background: var(--surface);
  box-shadow: 0 22px 60px rgba(17, 28, 42, .08);
}
.coverage-ledger::after {
  content: "500";
  position: absolute;
  right: -12px;
  bottom: -47px;
  color: rgba(29, 78, 137, .045);
  font: 700 118px/1 var(--mono);
  letter-spacing: -.12em;
}
.ledger-heading { position: relative; z-index: 1; display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; }
.ledger-heading strong { display: block; margin-top: 5px; font: 500 65px/1 var(--display); }
.ledger-heading p { margin: 2px 0 0; color: var(--ink-soft); font-size: 11px; text-align: right; }
.security-tape {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(25, minmax(3px, 1fr));
  gap: 4px;
  margin: 27px 0 21px;
}
.security-tape i { display: block; height: 8px; opacity: .9; transition: transform .18s ease, opacity .18s ease; }
.security-tape i:hover { transform: scaleY(1.8); opacity: 1; }
.security-tape .SH, .market-sh { background: var(--blue); }
.security-tape .SZ, .market-sz { background: var(--red); }
.security-tape .HK, .market-hk { background: var(--jade); }
.legend { position: relative; z-index: 1; display: flex; gap: 19px; color: var(--ink-soft); font-size: 11px; }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend i { width: 7px; height: 7px; border-radius: 50%; }
.legend b { color: var(--ink); font-family: var(--mono); }
.ledger-foot {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: auto 1fr auto 1fr;
  gap: 10px;
  margin-top: 21px;
  padding-top: 17px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 10px;
}
.ledger-foot strong { color: var(--ink); font: 10px/1.5 var(--mono); text-align: right; }

.published, .company-library, .methodology { padding: 88px 0; scroll-margin-top: 70px; }
.section-heading, .library-heading { display: flex; justify-content: space-between; align-items: flex-end; gap: 40px; margin-bottom: 34px; }
.section-heading h2, .library-heading h2 { margin: 7px 0 0; font: 600 clamp(31px, 4vw, 46px)/1.15 var(--display); letter-spacing: -.04em; }
.section-heading > p { max-width: 430px; margin: 0; color: var(--ink-soft); font-size: 12px; line-height: 1.8; text-align: right; }
.research-cards { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--ink); }
.research-card {
  position: relative;
  min-height: 370px;
  padding: 29px 30px;
  overflow: hidden;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: white;
  text-decoration: none;
  transition: transform .2s ease, box-shadow .2s ease;
}
.research-card:nth-child(4n) { border-right: 0; }
.research-card::after { content: attr(data-mark); position: absolute; right: -14px; bottom: -45px; color: rgba(17, 28, 42, .035); font: 700 125px/1 var(--mono); }
.research-card:hover { z-index: 2; transform: translateY(-4px); box-shadow: 0 24px 60px rgba(17, 28, 42, .1); }
.research-card:focus-visible { z-index: 3; }
.card-topline, .card-title { display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.card-topline { color: var(--ink-soft); font: 10px/1.4 var(--mono); }
.card-topline b { padding: 5px 8px; background: var(--jade-soft); color: var(--jade); font: 600 9px/1 var(--body); }
.card-title { margin: 42px 0 22px; align-items: baseline; }
.card-title h3 { margin: 0; font: 600 37px/1.1 var(--display); letter-spacing: -.04em; }
.card-title span { color: var(--ink-soft); font: 10px/1 var(--mono); }
.research-card > p { max-width: 560px; min-height: 79px; margin: 0; color: var(--ink-soft); font-size: 13px; line-height: 1.9; }
.research-card dl { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(3, 1fr); margin: 28px 0 0; border-top: 1px solid var(--line); }
.research-card dl div { padding: 15px 13px 0 0; }
.research-card dt { color: var(--ink-soft); font-size: 9px; }
.research-card dd { margin: 5px 0 0; font: 600 12px/1.4 var(--mono); }
.card-action { position: absolute; z-index: 2; right: 34px; bottom: 27px; color: var(--blue); font-size: 11px; font-weight: 600; }
.card-action i { margin-left: 6px; font-style: normal; }
.featured-moutai { border-bottom: 3px solid var(--red); }
.featured-pab { border-bottom: 3px solid var(--blue); }
.featured-tencent { border-bottom: 3px solid #1768a8; }
.featured-catl { border-bottom: 3px solid #16705a; }
.featured-pingan { border-bottom: 3px solid #cf5b2a; }
.featured-mobile { border-bottom: 3px solid #067a63; }
.featured-midea { border-bottom: 3px solid #146aa3; }
.featured-zijin { border-bottom: 3px solid #996128; }

.quality-console { padding: 48px 0 64px; border-top: 1px solid var(--ink); }
.quality-console > header { display: flex; align-items: flex-end; justify-content: space-between; gap: 30px; margin-bottom: 22px; }
.quality-console h2 { margin: 5px 0 0; font: 600 31px/1.15 var(--display); letter-spacing: -.04em; }
.quality-console > header > p { max-width: 430px; margin: 0; color: var(--ink-soft); font-size: 11px; line-height: 1.7; text-align: right; }
.quality-strip { display: grid; grid-template-columns: minmax(220px, 1.2fr) 3fr; border: 1px solid var(--ink); background: white; }
.quality-progress { padding: 23px 25px; border-right: 1px solid var(--ink); }
.quality-progress span { color: var(--ink-soft); font-size: 9px; }
.quality-progress strong { display: block; margin-top: 8px; font: 500 29px/1 var(--display); }
.quality-progress i { display: block; height: 5px; margin-top: 22px; overflow: hidden; background: var(--line); }
.quality-progress i b { display: block; width: 0; height: 100%; background: var(--red); transition: width .45s ease; }
.quality-strip dl { display: grid; grid-template-columns: repeat(6, 1fr); margin: 0; }
.quality-strip dl div { padding: 22px 16px; border-right: 1px solid var(--line); }
.quality-strip dl div:last-child { border-right: 0; }
.quality-strip dt { color: var(--ink-soft); font-size: 9px; }
.quality-strip dd { margin: 9px 0 0; font: 600 22px/1 var(--mono); }

.company-library { border-top: 1px solid var(--ink); }
.library-metrics { display: flex; gap: 38px; }
.library-metrics div { min-width: 90px; }
.library-metrics strong, .library-metrics span { display: block; }
.library-metrics strong { font: 500 28px/1.2 var(--display); }
.library-metrics span { margin-top: 3px; color: var(--ink-soft); font-size: 9px; }
.filter-bar {
  display: grid;
  grid-template-columns: minmax(230px, 1fr) auto 150px 160px auto;
  gap: 9px;
  padding: 13px;
  border: 1px solid var(--line);
  border-bottom: 0;
  background: white;
}
.compact-search {
  display: grid;
  grid-template-columns: 18px 1fr;
  align-items: center;
  gap: 9px;
  min-height: 40px;
  padding: 0 12px;
  border: 1px solid var(--line);
  background: var(--paper);
}
.compact-search input { height: 38px; font-size: 12px; }
.segment-control { display: flex; margin: 0; padding: 0; border: 1px solid var(--line); }
.segment-control button {
  min-width: 62px;
  min-height: 40px;
  padding: 0 13px;
  border: 0;
  border-right: 1px solid var(--line);
  background: white;
  color: var(--ink-soft);
  font-size: 11px;
  cursor: pointer;
}
.segment-control button:last-child { border-right: 0; }
.segment-control button.selected { background: var(--ink); color: white; }
.select-control select {
  width: 100%;
  min-height: 42px;
  padding: 0 11px;
  border: 1px solid var(--line);
  outline: 0;
  background: white;
  color: var(--ink);
  font-size: 11px;
}
.compact-search:focus-within, .select-control select:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(29, 78, 137, .08); }
.reset-button { min-height: 42px; padding: 0 14px; border: 1px solid var(--line); background: white; color: var(--ink-soft); font-size: 11px; cursor: pointer; }
.reset-button:hover { border-color: var(--ink); color: var(--ink); }
.result-summary { display: flex; justify-content: space-between; align-items: center; padding: 14px 17px; border: 1px solid var(--line); background: #eef2f4; }
.result-summary p { margin: 0; font-size: 12px; }
.result-summary span { color: var(--ink-soft); font-size: 10px; }
.table-panel { border: 1px solid var(--line); border-top: 0; background: white; box-shadow: 0 14px 40px rgba(17, 28, 42, .055); }
.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th { padding: 13px 17px; border-bottom: 1px solid var(--line); color: var(--ink-soft); font-size: 10px; font-weight: 500; letter-spacing: .04em; text-align: left; white-space: nowrap; }
td { padding: 15px 17px; border-bottom: 1px solid #e9edf0; font-size: 12px; vertical-align: middle; }
tbody tr { transition: background .15s ease; }
tbody tr:hover { background: #f7f9fa; }
.number { text-align: right; font-family: var(--mono); }
.rank-cell { color: #929da7; font: 10px/1 var(--mono); }
.code-cell { font: 11px/1 var(--mono); }
.company-cell strong { display: block; font-size: 13px; }
.company-cell small { display: block; max-width: 290px; overflow: hidden; margin-top: 3px; color: var(--ink-soft); font-size: 9px; text-overflow: ellipsis; white-space: nowrap; }
.market-chip, .status-chip { display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; }
.market-chip::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--market-color); }
.status-chip { padding: 4px 8px; font-size: 9px; }
.status-chip.published { background: var(--jade-soft); color: var(--jade); }
.status-chip.not_started { background: #edf0f2; color: #7b8791; }
.detail-button { padding: 6px 0; border: 0; border-bottom: 1px solid transparent; background: transparent; color: var(--blue); font-size: 10px; font-weight: 600; cursor: pointer; }
.detail-button:hover { border-color: var(--blue); }
.loading-cell, .empty-cell { padding: 60px 24px; color: var(--ink-soft); text-align: center; }
.pagination { display: flex; justify-content: space-between; align-items: center; padding: 17px; }
.pagination p { margin: 0; color: var(--ink-soft); font-size: 10px; }
.pagination > div { display: flex; align-items: center; gap: 11px; }
.pagination button { padding: 7px 11px; border: 1px solid var(--line); background: white; color: var(--ink); font-size: 10px; cursor: pointer; }
.pagination button:disabled { opacity: .35; cursor: default; }
.pagination span { font: 10px/1 var(--mono); }

.methodology { border-top: 1px solid var(--ink); }
.method-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.method-grid article { position: relative; min-height: 220px; padding: 24px; border-right: 1px solid var(--line); }
.method-grid article:last-child { border-right: 0; }
.method-grid span { color: var(--red); font: 10px/1 var(--mono); }
.method-grid h3 { margin: 47px 0 13px; font: 600 19px/1.35 var(--display); }
.method-grid p { margin: 0; color: var(--ink-soft); font-size: 11px; line-height: 1.8; }

footer { display: flex; justify-content: space-between; gap: 30px; padding: 29px 0 44px; border-top: 1px solid var(--ink); color: var(--ink-soft); font-size: 10px; }
footer strong { color: var(--ink); letter-spacing: .18em; }
footer p { max-width: 690px; margin: 3px 0 0; }

.drawer-backdrop { position: fixed; z-index: 39; inset: 0; background: rgba(8, 20, 34, .48); backdrop-filter: blur(3px); }
.detail-drawer {
  position: fixed;
  z-index: 40;
  top: 0;
  right: 0;
  width: min(540px, 100%);
  height: 100dvh;
  padding: 54px 43px;
  overflow-y: auto;
  background: white;
  box-shadow: -30px 0 80px rgba(7, 25, 43, .22);
  transform: translateX(104%);
  transition: transform .3s cubic-bezier(.22, .8, .25, 1);
}
.detail-drawer.open { transform: translateX(0); }
.drawer-close { position: absolute; top: 20px; right: 22px; width: 34px; height: 34px; border: 1px solid var(--line); border-radius: 50%; background: white; color: var(--ink); font-size: 22px; cursor: pointer; }
.drawer-code { color: var(--blue); font: 10px/1 var(--mono); letter-spacing: .08em; }
.detail-drawer h2 { margin: 12px 0 4px; font: 600 40px/1.15 var(--display); letter-spacing: -.04em; }
.drawer-en { margin: 0; color: var(--ink-soft); font-size: 11px; }
.drawer-grid { display: grid; grid-template-columns: repeat(2, 1fr); margin: 27px 0; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.drawer-grid div { padding: 15px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.drawer-grid span { display: block; color: var(--ink-soft); font-size: 9px; }
.drawer-grid strong { display: block; margin-top: 5px; font-size: 13px; }
.drawer-section { margin-top: 29px; }
.drawer-section h3 { margin: 0 0 11px; font: 600 18px/1.3 var(--display); }
.drawer-section p { color: var(--ink-soft); font-size: 12px; line-height: 1.8; }
.drawer-section .linked-report-note { margin: 12px 0; padding: 11px 13px; border-left: 3px solid var(--teal); background: rgba(35, 122, 104, .08); }
.linked-report-note strong { color: var(--ink); font-family: var(--mono); }
.research-steps { margin: 0; padding: 0; list-style: none; }
.research-steps li { display: flex; gap: 11px; padding: 10px 0; border-bottom: 1px solid var(--line); color: var(--ink-soft); font-size: 11px; }
.research-steps i { width: 16px; height: 16px; border: 1px solid var(--line); border-radius: 50%; }
.report-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 9px; margin-top: 17px; }
.report-links a { padding: 12px 13px; border: 1px solid var(--ink); text-align: center; text-decoration: none; font-size: 11px; }
.report-links a:first-child { background: var(--ink); color: white; }
.deep-research-link { display: flex; align-items: center; justify-content: space-between; margin-top: 17px; padding: 15px 17px; background: var(--red); color: white; font-size: 12px; font-weight: 600; text-decoration: none; }
.deep-research-link:hover { background: #7f2c2a; }

.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
:focus-visible { outline: 3px solid rgba(29, 78, 137, .24); outline-offset: 3px; }

@media (max-width: 1050px) {
  .header-inner { grid-template-columns: 1fr auto; }
  .site-header nav { display: none; }
  .intro-panel { grid-template-columns: 1fr; gap: 48px; }
  .coverage-ledger { max-width: 760px; }
  .research-cards { grid-template-columns: repeat(2, 1fr); }
  .research-card:nth-child(4n) { border-right: 1px solid var(--line); }
  .research-card:nth-child(2n) { border-right: 0; }
  .filter-bar { grid-template-columns: 1fr 1fr; }
  .compact-search, .segment-control { grid-column: 1 / -1; }
  .reset-button { min-width: 80px; }
  .quality-strip { grid-template-columns: 1fr; }
  .quality-progress { border-right: 0; border-bottom: 1px solid var(--ink); }
  .quality-strip dl { grid-template-columns: repeat(3, 1fr); }
  .quality-strip dl div:nth-child(3) { border-right: 0; }
}

@media (max-width: 720px) {
  .header-inner, main, footer { width: min(100% - 28px, 1280px); }
  .header-inner { min-height: 60px; }
  .access-state { display: none; }
  .intro-panel { min-height: 0; padding: 50px 0; }
  .intro-main h1 { font-size: clamp(46px, 14vw, 66px); }
  .hero-search kbd { display: none; }
  .coverage-ledger { padding: 22px; }
  .security-tape { grid-template-columns: repeat(20, 1fr); gap: 3px; }
  .legend { flex-wrap: wrap; }
  .ledger-foot { grid-template-columns: auto 1fr; }
  .published, .company-library, .methodology { padding: 63px 0; }
  .section-heading, .library-heading { align-items: flex-start; flex-direction: column; }
  .section-heading > p { text-align: left; }
  .research-cards { grid-template-columns: 1fr; }
  .research-card,
  .research-card:nth-child(2n),
  .research-card:nth-child(4n) { min-height: 410px; border-right: 0; border-bottom: 1px solid var(--line); }
  .research-card dl { grid-template-columns: 1fr; }
  .research-card dl div { display: flex; justify-content: space-between; padding-top: 10px; }
  .research-card > p { min-height: 0; }
  .card-action { right: 28px; bottom: 24px; }
  .quality-console > header { align-items: flex-start; flex-direction: column; }
  .quality-console > header > p { text-align: left; }
  .quality-strip dl { grid-template-columns: repeat(2, 1fr); }
  .quality-strip dl div:nth-child(3) { border-right: 1px solid var(--line); }
  .quality-strip dl div:nth-child(2n) { border-right: 0; }
  .library-metrics { width: 100%; justify-content: space-between; gap: 15px; }
  .library-metrics div { min-width: 0; }
  .filter-bar { grid-template-columns: 1fr; }
  .compact-search, .segment-control { grid-column: auto; }
  .segment-control { display: grid; grid-template-columns: repeat(2, 1fr); }
  .segment-control button:nth-child(2) { border-right: 0; }
  .segment-control button:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .result-summary { align-items: flex-start; flex-direction: column; gap: 5px; }
  th, td { padding: 13px 12px; }
  .company-cell small { max-width: 150px; }
  .pagination { align-items: flex-start; flex-direction: column; gap: 13px; }
  .method-grid { grid-template-columns: 1fr; }
  .method-grid article { min-height: 160px; border-right: 0; border-bottom: 1px solid var(--line); }
  .method-grid article:last-child { border-bottom: 0; }
  .method-grid h3 { margin-top: 30px; }
  footer { flex-direction: column; }
  .detail-drawer { padding: 52px 23px 30px; }
  .detail-drawer h2 { font-size: 34px; }
}

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