:root {
  --ink: #12191d;
  --muted: #58646b;
  --line: #cfd7d9;
  --line-dark: #9ca9ad;
  --green: #0f5132;
  --blue: #205ac7;
  --soft: #f2f5f3;
  --yellow: #f3b61f;
  --max: 1240px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: #fff; font-family: Inter, "Noto Sans SC", "Microsoft YaHei", "PingFang SC", Arial, sans-serif; font-size: 16px; line-height: 1.6; letter-spacing: 0; overflow-wrap: anywhere; }
body.lang-en { font-family: Inter, Arial, Helvetica, sans-serif; }
a { color: inherit; text-decoration: none; }
button, textarea { font: inherit; }
button, a, summary { touch-action: manipulation; }
button { cursor: pointer; }
h1, h2, h3, p { margin: 0; }
h1 { font-size: 40px; line-height: 1.15; font-weight: 850; }
h2 { font-size: 28px; line-height: 1.25; font-weight: 820; }
h3 { font-size: 17px; line-height: 1.4; }
p { color: var(--muted); }
[id] { scroll-margin-top: 24px; }
.shell { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.topbar { border-bottom: 1px solid var(--line); }
.nav { min-height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-size: 18px; font-weight: 800; line-height: 1.2; }
.brand-mark { width: 28px; height: 28px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 3px; flex: 0 0 auto; }
.brand-mark i { background: var(--green); }
.brand-mark i:nth-child(2), .brand-mark i:nth-child(3) { background: var(--yellow); }
.nav nav { display: flex; align-items: center; gap: 24px; font-size: 14px; font-weight: 700; }
.nav nav a:not(.button):hover { color: var(--green); }
.button { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 17px; border: 1px solid var(--green); border-radius: 5px; color: #fff; background: var(--green); font-size: 14px; font-weight: 800; line-height: 1.2; text-align: center; }
.button:hover { background: #0a3c25; border-color: #0a3c25; }
.button.compact { min-height: 38px; padding: 8px 14px; font-size: 13px; }
.button.secondary { background: transparent; border-color: #ffffffbf; }
.button.secondary:hover { color: var(--ink); background: #fff; border-color: #fff; }
.intro { position: relative; color: #fff; border-bottom: 1px solid var(--line); background-color: #172126; background-size: cover; background-position: center; }
.intro-cn { background-image: url("assets/market-entry-field-hero.jpg"); }
.intro-en { background-image: url("assets/rfq-item-desk-hero.jpg"); }
.intro .shell { position: relative; padding-top: 40px; padding-bottom: 32px; }
.intro-copy { max-width: 610px; }
.intro-copy > p:not(.image-caption) { margin-top: 18px; max-width: 560px; color: #f0f4f3; font-size: 18px; line-height: 1.6; }
.intro-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.intro-copy .image-caption { margin-top: 18px; color: #e4ece9; font-size: 11px; }
.observations { padding: 40px 0; }
.section-bar { display: flex; align-items: start; justify-content: space-between; gap: 28px; }
.section-bar p { margin-top: 8px; font-size: 15px; }
.review { display: grid; font-size: 12px; line-height: 1.5; white-space: nowrap; color: var(--muted); border-left: 3px solid var(--yellow); padding-left: 12px; }
.review time { font-weight: 700; color: var(--ink); }
.snapshot-note { font-size: 13px; margin: 20px 0; }
.snapshot-note.stale { padding: 12px; border-left: 3px solid #b42318; background: #fff2f0; color: #84291f; }
.filterbar { display: flex; gap: 24px; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.filterbar > span { font-size: 12px; color: var(--muted); }
#filters { display: flex; flex-wrap: wrap; gap: 0; }
.filter { border: 1px solid var(--line); background: #fff; color: var(--muted); padding: 7px 16px; font-size: 13px; font-weight: 700; margin-left: -1px; min-height: 38px; }
.filter:first-child { border-radius: 5px 0 0 5px; margin-left: 0; }
.filter:last-child { border-radius: 0 5px 5px 0; }
.filter[aria-pressed="true"] { position: relative; z-index: 1; background: var(--green); border-color: var(--green); color: #fff; }
.record-head, .record { display: grid; grid-template-columns: minmax(100px,.9fr) minmax(150px,1.1fr) minmax(100px,.9fr) minmax(230px,2fr) 36px; gap: 24px; align-items: center; }
.record-head { font-size: 12px; color: var(--muted); padding: 10px 0; border-bottom: 1px solid var(--line); }
.record { padding: 18px 0; border-bottom: 1px solid var(--line); font-size: 14px; min-height: 76px; }
.record h3 { font-size: 15px; font-weight: 750; }
.record .region { font-weight: 700; }
.record .evidence { font-size: 12px; font-weight: 700; display: block; }
.evidence.plan, .evidence.plan_recheck { color: #805c00; }
.evidence.notice { color: var(--blue); }
.record .decision { color: var(--ink); line-height: 1.65; }
.icon { width: 36px; height: 36px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 5px; background: #fff; color: var(--muted); padding: 8px; }
.icon:hover { color: var(--green); border-color: var(--green); }
svg { width: 18px; height: 18px; stroke-width: 1.6; flex-shrink: 0; }
.coverage { margin-top: 18px; font-size: 13px; color: var(--muted); }
summary { cursor: pointer; color: var(--ink); font-weight: 700; }
summary::marker { color: var(--green); }
summary:hover { color: var(--green); }
.coverage p { margin-top: 10px; max-width: 990px; }
.method-band { background: var(--soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 44px 0; }
.example-label { font-size: 12px; color: var(--muted); padding-top: 7px; }
.tabs { display: flex; border-bottom: 1px solid var(--line-dark); gap: 28px; margin: 26px 0; }
.tab { border: 0; background: none; color: var(--muted); border-bottom: 2px solid transparent; padding: 10px 0; font-size: 14px; font-weight: 750; min-height: 42px; }
.tab[aria-selected="true"] { color: var(--green); border-bottom-color: var(--green); }
.method-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 40px; min-height: 145px; }
.method-grid h3 { margin-bottom: 10px; }
.method-grid p { font-size: 14px; line-height: 1.8; }
.timeline { border-top: 1px solid var(--line-dark); margin-top: 28px; padding-top: 24px; }
.timeline h3 { font-size: 17px; }
.timeline ol { display: flex; list-style: none; padding: 0; margin: 20px 0 14px; max-width: 750px; }
.timeline li { flex: 1; font-size: 13px; position: relative; padding: 10px 8px 0 0; border-top: 2px solid var(--line); }
.timeline li::before { content: ""; position: absolute; left: 0; top: -5px; width: 8px; height: 8px; background: var(--green); }
.timeline li:not(:first-child)::before { background: var(--yellow); }
.timeline p { font-size: 13px; max-width: 950px; }
.question-band { color: #fff; background: var(--green); }
.question-section { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; padding: 44px 0; }
.question-section h2 { margin-bottom: 14px; }
.question-section p { color: #dce9e2; font-size: 15px; }
.question-section #question-boundary { font-size: 13px; margin-top: 16px; }
.question-section label { display: block; font-size: 14px; font-weight: 750; margin-bottom: 8px; }
textarea { resize: vertical; width: 100%; min-height: 110px; max-height: 250px; border: 1px solid #b9c6cb; border-radius: 5px; padding: 12px; font-size: 14px; line-height: 1.5; color: var(--ink); background: #fff; }
.form-footer { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 12px; font-size: 12px; color: #dce9e2; }
.question-band .button { color: var(--green); background: #fff; border-color: #fff; }
.question-band .button:hover { color: #fff; background: transparent; }
.small, .question-section #mail-note { font-size: 12px; margin-top: 12px; }
footer { color: #dce4e6; background: #10171a; }
.footer { display: flex; align-items: center; gap: 32px; padding: 32px 0; font-size: 13px; }
.footer strong { color: #fff; font-size: 16px; }
.footer p { flex: 1; color: #aebbc0; font-size: 12px; }
.footer a { font-weight: 750; }
.footer a:hover { color: var(--yellow); }
.skip { position: absolute; left: 16px; top: -100px; padding: 10px 14px; color: #fff; background: var(--ink); z-index: 5; }
.skip:focus { top: 10px; }
:focus-visible { outline: 3px solid var(--yellow); outline-offset: 3px; }
dialog { width: min(620px,calc(100% - 32px)); max-height: calc(100% - 40px); overflow: auto; border: 1px solid var(--line); border-radius: 6px; padding: 26px; color: var(--ink); background: #fff; }
dialog::backdrop { background: #12191d66; }
.dialog-top { display: flex; justify-content: space-between; align-items: center; color: var(--muted); font-size: 12px; }
dialog h2 { margin: 14px 0 24px; font-size: 24px; }
dialog h3 { margin-top: 20px; font-size: 14px; }
dialog p { font-size: 14px; margin-top: 7px; }
.load-state { padding: 25px 0; font-size: 14px; }
@media (max-width: 1040px) {
  .record-head, .record { grid-template-columns: .75fr 1fr .85fr 1.5fr 36px; gap: 16px; }
  .method-grid { gap: 24px; }
  .question-section { gap: 32px; }
  .nav nav .compact { display: none; }
}
@media (max-width: 780px) {
  .shell { width: min(var(--max),calc(100% - 32px)); }
  .nav { min-height: 62px; gap: 16px; }
  .brand { font-size: 16px; }
  .brand-mark { width: 24px; height: 24px; }
  .nav nav { gap: 16px; font-size: 13px; }
  .nav nav a:first-child { display: none; }
  .intro { background-position: 65% center; }
  .intro::before { content: ""; position: absolute; inset: 0; background: #0810138c; pointer-events: none; }
  .intro .shell { padding-top: 30px; padding-bottom: 26px; }
  .intro-copy { max-width: 540px; }
  h1 { font-size: 34px; }
  .intro-copy > p:not(.image-caption) { font-size: 17px; }
  .intro-actions { margin-top: 20px; }
  h2 { font-size: 25px; }
  .observations { padding: 30px 0; }
  .section-bar { gap: 18px; }
  .section-bar p { font-size: 13px; }
  .review { font-size: 11px; }
  .filterbar { display: block; }
  .filterbar > span { display: block; margin-top: 10px; }
  .filter { font-size: 12px; padding: 7px 12px; }
  .record-head { display: none; }
  .record { grid-template-columns: 1fr 36px; gap: 7px 14px; padding: 18px 0; position: relative; }
  .record .region { font-size: 12px; color: var(--muted); grid-column: 1; }
  .record h3 { grid-column: 1; font-size: 16px; }
  .record .evidence { grid-column: 1; font-size: 12px; }
  .record .decision { grid-column: 1; margin-top: 4px; font-size: 14px; }
  .record .icon { grid-column: 2; grid-row: 1/5; align-self: center; }
  .method-band { padding: 32px 0; }
  .method-band .section-bar { display: block; }
  .example-label { display: block; margin-top: 9px; }
  .tabs { gap: 20px; }
  .tab { font-size: 13px; }
  .method-grid { grid-template-columns: 1fr; gap: 24px; min-height: 0; }
  .question-section { grid-template-columns: 1fr; gap: 26px; padding: 32px 0; }
  .form-footer { align-items: start; }
  .footer { align-items: start; flex-direction: column; gap: 16px; }
  .timeline li { font-size: 12px; }
  dialog { padding: 20px; }
}
@media (max-width: 430px) {
  .shell { width: calc(100% - 24px); }
  .brand span:last-child { max-width: 230px; }
  .lang-en .brand { font-size: 14px; }
  .intro-actions { display: grid; grid-template-columns: 1fr; }
  .intro .button { width: 100%; }
  .section-bar { flex-wrap: wrap; }
  .review { display: flex; gap: 8px; }
  .tabs { gap: 16px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }