/* ============================================================
   Arrive China — design tokens & shared styles
   Concept: "arrival". Air route arc + airport arrival board + passport stamp.
   Light, crisp, trustworthy. Sky blue + stamp red, on warm paper-white.
   ============================================================ */

/* CJK fallback: Archivo / IBM Plex Sans carry no hanzi, so load a free,
   squarish Simplified Chinese sans (Noto Sans SC) for consistent glyphs.
   Google Fonts serves it subsetted by unicode-range, so only the slices
   containing the characters actually on the page are downloaded. */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;700&display=swap');

:root {
  --paper:      #FBFBF9;
  --paper-2:    #F4F6F4;
  --ink:        #12293B;   /* deep blue-black, headings + body */
  --muted:      #56677A;   /* secondary text */
  --sky:        #1D6FB8;   /* airline blue — primary accent */
  --sky-deep:   #14508A;
  --mist:       #EAF1F7;   /* pale blue blocks */
  --line:       #DCE4EB;   /* hairlines */
  --stamp:      #D2442F;   /* passport-stamp red — sparing accent */
  --stamp-soft: #F7E6E1;
  --good:       #2F7D54;   /* completed state */
  --good-soft:  #E6F2EC;

  --font-display: "Archivo", "Helvetica Neue", "Noto Sans SC", Arial, sans-serif;
  --font-body:    "IBM Plex Sans", "Helvetica Neue", "Noto Sans SC", Arial, sans-serif;

  --maxw: 1080px;
  --radius: 4px;
  --shadow: 0 1px 2px rgba(18,41,59,.06), 0 12px 32px -18px rgba(18,41,59,.28);
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ---------- type ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0 0 0.5em;
}
h1 { font-size: clamp(2.2rem, 5.4vw, 3.6rem); font-weight: 800; }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
h3 { font-size: 1.12rem; }

p { margin: 0 0 1em; }
a { color: var(--sky-deep); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

.num {
  font-family: var(--font-display);
  font-feature-settings: "tnum";
  font-variant-numeric: tabular-nums;
  letter-spacing: 0;
}

/* ---------- layout primitives ---------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.eyebrow {
  font-family: var(--font-display);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--sky-deep);
  margin-bottom: 14px;
}

/* ---------- header ---------- */
.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(251,251,249,.86);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.12rem;
  letter-spacing: -0.01em;
  color: var(--ink);
  /* 2026-09-14：header 放开换行后，品牌名会被挤成两行（"Arrive / China"）。
     品牌是固定短字符串，钉住不换行，把换行让给导航。 */
  flex: none;
  white-space: nowrap;
}
.brand:hover { text-decoration: none; }
.brand-mark {
  height: 30px;
  width: auto;
  display: block;
  flex: none;
}
.nav { display: flex; gap: 24px; align-items: center; }
.nav a {
  font-size: .95rem;
  font-weight: 500;
  color: var(--ink);
  opacity: .78;
}
.nav a:hover { opacity: 1; text-decoration: none; }
.nav .nav-cta {
  background: var(--ink);
  color: #fff;
  padding: 9px 16px;
  border-radius: var(--radius);
  font-weight: 600;
  opacity: 1;
}
.nav .nav-cta:hover { background: var(--sky-deep); }

/* language selector */
.lang-select {
  font-family: var(--font-body);
  font-size: .9rem;
  padding: 6px 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
}
.lang-select:focus-visible { outline: 2px solid var(--sky); outline-offset: 2px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  padding: 13px 22px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .15s, transform .15s, border-color .15s;
}
.btn svg { width: 16px; height: 16px; }
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: var(--sky-deep); text-decoration: none; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--sky); color: var(--sky-deep); text-decoration: none; }
.btn:active { transform: translateY(1px); }

/* ---------- phrasebook audio play button ---------- */
.play-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  margin-right: 10px;
  padding: 0;
  border: 1.5px solid var(--sky);
  border-radius: 50%;
  background: transparent;
  color: var(--sky);
  cursor: pointer;
  flex: 0 0 auto;
  vertical-align: middle;
  transition: background .15s ease, color .15s ease, transform .1s ease;
}
.play-btn svg { width: 13px; height: 13px; }
.play-btn:hover { background: var(--sky); color: #fff; }
.play-btn:active { transform: scale(.92); }
.play-btn.playing { background: var(--sky); color: #fff; }

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; }
.hero .wrap {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 48px;
  align-items: center;
  padding-top: 72px;
  padding-bottom: 72px;
}
.hero-copy h1 { margin-bottom: 16px; }
.hero-copy .lede {
  font-size: 1.18rem;
  color: var(--muted);
  max-width: 34ch;
  margin-bottom: 28px;
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-note {
  margin-top: 20px;
  font-size: .85rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 7px;
}
.hero-note svg { width: 15px; height: 15px; color: var(--good); }

/* arrival board */
.arrival-board {
  background: var(--ink);
  color: #EAF1F7;
  border-radius: 6px;
  padding: 26px 26px 22px;
  box-shadow: var(--shadow);
  position: relative;
}
.ab-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 11px 0;
  border-bottom: 1px solid rgba(234,241,247,.14);
}
.ab-row:last-of-type { border-bottom: none; }
.ab-label {
  font-size: .72rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  opacity: .55;
  font-family: var(--font-display);
  font-weight: 600;
}
.ab-value {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  color: #fff;
  text-align: right;
}
.ab-value .big { font-size: 1.9rem; line-height: 1; display: block; }
.ab-dest .ab-value { color: #9FD0FF; }
.ab-status {
  margin-top: 18px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .8rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: #BDE8C6;
}
.ab-status .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #4FC06E;
  box-shadow: 0 0 0 4px rgba(79,192,110,.18);
}
.ab-stamp {
  position: absolute;
  top: -14px; right: 22px;
  transform: rotate(8deg);
  border: 2px solid var(--stamp);
  color: var(--stamp);
  border-radius: 4px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  padding: 4px 10px;
  background: var(--paper);
}

/* route arc */
.arc {
  display: block;
  margin: 40px auto 8px;
  max-width: 560px;
  width: 100%;
  height: auto;
}
.arc .track { stroke: var(--line); stroke-width: 1.5; fill: none; }
.arc .route {
  stroke: var(--sky);
  stroke-width: 2.5;
  fill: none;
  stroke-dasharray: 5 6;
  stroke-linecap: round;
}
.arc .point { fill: var(--sky); }
.arc .point--dest { fill: var(--stamp); }
.arc .cap { font-family: var(--font-display); font-size: 11px; font-weight: 700; letter-spacing: .08em; fill: var(--muted); text-transform: uppercase; }
.arc .cap--dest { fill: var(--ink); }

/* ---------- steps preview ---------- */
.section { padding: 64px 0; }
.section--mist { background: var(--mist); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { max-width: 60ch; margin-bottom: 40px; }
.section-head h2 { margin-bottom: 10px; }
.section-head p { color: var(--muted); margin: 0; }

.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.step {
  display: grid;
  grid-template-columns: 52px 1fr auto;
  gap: 18px;
  align-items: start;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}
.step:last-child { border-bottom: 1px solid var(--line); }
.step-num {
  width: 42px; height: 42px;
  border-radius: 50%;
  border: 1.5px solid var(--line);
  display: grid; place-items: center;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--sky-deep);
  font-size: 1rem;
}
.step h3 { margin-bottom: 4px; }
.step p { margin: 0; color: var(--muted); font-size: .96rem; }
.step .step-link { align-self: center; font-weight: 600; font-size: .92rem; white-space: nowrap; }
/* 步骤内挂的补充链接（如「要签证怎么办」）——不是第 8 个步骤，不占序号 */
.step .step-more { margin: 6px 0 0; font-size: .9rem; }

/* ---------- value / why ---------- */
.why { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 8px; }
.why-item { padding: 4px 0; }
.why-item .why-icon { width: 34px; height: 34px; color: var(--sky); margin-bottom: 14px; }
.why-item h3 { margin-bottom: 8px; }
.why-item p { color: var(--muted); font-size: .97rem; margin: 0; }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 44px 0; }
.site-footer .wrap { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.site-footer .fine { color: var(--muted); font-size: .85rem; margin: 0; }
/* ⚠️ 2026-09-14：原来只有 gap、没有 flex-wrap。footer 导航项目多起来
   （guides 索引页有 10 条，俄语标签又长）后单行撑破视口 —— 360px 下
   实测整页 scrollWidth 407~432。移动端是访客主力，故放开换行。 */
.site-footer nav { display: flex; gap: 20px; flex-wrap: wrap; row-gap: 10px; }
.site-footer nav a { font-size: .88rem; }

/* ============================================================
   Checklist page
   ============================================================ */
.page-hero { padding: 56px 0 28px; }
.page-hero h1 { max-width: 18ch; margin-bottom: 12px; }
.page-hero .lede { color: var(--muted); max-width: 56ch; margin: 0; }

.progress-wrap {
  position: sticky;
  top: 64px;
  z-index: 40;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
}
.progress-track {
  height: 8px;
  background: var(--mist);
  border-radius: 999px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--sky), #3F97D6);
  border-radius: 999px;
  transition: width .3s ease;
}
.progress-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 8px;
  font-size: .88rem;
  color: var(--muted);
}
.progress-meta .pct { font-family: var(--font-display); font-weight: 700; color: var(--ink); font-size: 1.05rem; }

.stage {
  padding: 36px 0;
  border-top: 1px solid var(--line);
}
.stage-head { display: grid; grid-template-columns: 44px 1fr; gap: 16px; align-items: start; margin-bottom: 10px; }
.stage-num {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  display: grid; place-items: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .95rem;
}
.stage-head h2 { margin-bottom: 4px; }
.stage-head .stage-sub { color: var(--muted); margin: 0; font-size: .98rem; }
.stage-list { list-style: none; margin: 14px 0 0 60px; padding: 0; }
.stage-list li + li { border-top: 1px solid var(--line); }

.check {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 13px 6px;
  cursor: pointer;
  border-radius: var(--radius);
}
.check:hover { background: var(--paper-2); }
.check input {
  position: absolute;
  opacity: 0;
  width: 1px; height: 1px;
}
.check .box {
  flex: none;
  width: 22px; height: 22px;
  margin-top: 1px;
  border: 1.5px solid var(--line);
  border-radius: 4px;
  display: grid; place-items: center;
  transition: background .15s, border-color .15s;
}
.check .box svg { width: 13px; height: 13px; color: #fff; opacity: 0; transform: scale(.6); transition: opacity .12s, transform .12s; }
.check .txt { font-size: 1rem; }
.check .txt small { display: block; color: var(--muted); font-size: .88rem; margin-top: 2px; }
.check input:checked + .box { background: var(--good); border-color: var(--good); }
.check input:checked + .box svg { opacity: 1; transform: scale(1); }
.check input:focus-visible + .box { outline: 2px solid var(--sky); outline-offset: 2px; }
.check.done .txt { color: var(--muted); }
.check.done .txt::first-line { text-decoration: line-through; text-decoration-color: var(--line); }

.checklist-actions {
  display: flex;
  gap: 14px;
  justify-content: flex-end;
  padding: 28px 0 48px;
}

/* ============================================================
   Article (guide) page
   ============================================================ */
.article-hero { padding: 56px 0 8px; }
.article-hero .eyebrow { color: var(--stamp); }
.article-hero h1 { max-width: 22ch; }
.article-hero .byline { color: var(--muted); font-size: .9rem; }

.article-body {
  display: grid;
  grid-template-columns: minmax(0, 680px) 260px;
  gap: 48px;
  padding: 24px 0 72px;
}
.prose { font-size: 1.06rem; line-height: 1.75; }
.prose h2 { margin: 2em 0 .5em; }
.prose h3 { margin: 1.6em 0 .4em; }
.prose p { margin: 0 0 1.15em; }
.prose ul, .prose ol { padding-left: 1.3em; margin: 0 0 1.2em; }
.prose li { margin-bottom: .5em; }
.prose .callout {
  background: var(--mist);
  border-left: 3px solid var(--sky);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 16px 20px;
  margin: 1.6em 0;
  font-size: .98rem;
}
.prose .callout--warn {
  background: var(--stamp-soft);
  border-left-color: var(--stamp);
}
.prose .callout strong { display: block; margin-bottom: 4px; }
.prose table { width: 100%; border-collapse: collapse; margin: 1.4em 0; font-size: .95rem; }
.prose th, .prose td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); }
.prose th { font-family: var(--font-display); font-weight: 600; font-size: .86rem; letter-spacing: .03em; }
.prose .rec { color: var(--good); font-weight: 600; }
.prose .avoid { color: var(--stamp); font-weight: 600; }

.toc {
  position: sticky;
  top: 88px;
  align-self: start;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 18px;
  background: var(--paper);
}
.toc h4 { font-size: .82rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); margin-bottom: 12px; }
.toc ol { margin: 0; padding-left: 1.2em; font-size: .9rem; }
.toc li { margin-bottom: 8px; }
.toc a { color: var(--muted); }
.toc a:hover { color: var(--sky-deep); }

/* ---------- responsive ---------- */
@media (max-width: 880px) {
  .hero .wrap { grid-template-columns: 1fr; gap: 32px; padding-top: 48px; padding-bottom: 48px; }
  .why { grid-template-columns: 1fr; }
  /* ⚠️ 2026-09-14：原来写的是 1fr，而 1fr 的隐含最小是 auto —— 轨道
     无法窄于内容的 min-content，`<table>` 一宽就顶破整页（360px 下
     guides/visa 溢出 66px、guides/payment 27px）。改成 minmax(0,1fr)
     让轨道能被压缩，再给表格自己一个横向滚动容器。 */
  .article-body { grid-template-columns: minmax(0, 1fr); }
  .hero .wrap, .why { min-width: 0; }
  .prose table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; max-width: 100%; }
  .toc { position: static; }
  .stage-list { margin-left: 0; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  /* ⚠️ 2026-09-14 修复：header 是 height:64px 的 flex 且没有 flex-wrap，
     窄屏下品牌+导航+语言选择+CTA 溢出视口 —— 全站 128 页在 360px 下都会
     出现横向滚动条（实测 scrollWidth 549 / 视口 360）。移动端是访客主力，
     故放开换行、去掉固定高度。 */
  .site-header .wrap { height: auto; flex-wrap: wrap; row-gap: 8px; padding-top: 10px; padding-bottom: 10px; }
  .nav { gap: 14px; flex-wrap: wrap; justify-content: flex-end; row-gap: 8px; }
  .step { grid-template-columns: 42px 1fr; }
  .step .step-link { grid-column: 2; }
  .checklist-actions { justify-content: stretch; }
  .checklist-actions .btn { flex: 1; justify-content: center; }
}

/* ---------- accessibility ---------- */
:focus-visible { outline: 2px solid var(--sky); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

/* ============================================================
   Setup guide — step-by-step with phone mockups
   ============================================================ */
.setup-part {
  margin: 44px 0 0;
  padding: 30px 0 0;
  border-top: 1px solid var(--line);
}
.setup-part > h2 { margin-bottom: 6px; }
.setup-part > p { color: var(--muted); max-width: 60ch; }

.setup-step {
  display: grid;
  grid-template-columns: 1fr 232px;
  gap: 36px;
  align-items: center;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}
.setup-step h3 { margin-bottom: 8px; }
.setup-step .step-txt p { color: var(--muted); margin: 0 0 8px; }
.setup-step .step-txt ul { margin: 0; padding-left: 1.2em; color: var(--muted); }
.setup-step .step-txt li { margin-bottom: 5px; }

.phone {
  background: var(--ink);
  border-radius: 26px;
  padding: 9px;
  box-shadow: var(--shadow);
  justify-self: center;
}
.phone-screen {
  background: #fff;
  border-radius: 18px;
  min-height: 300px;
  padding: 13px 12px;
  font-size: .74rem;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.phone-caption {
  grid-column: 1 / -1;
  text-align: center;
  font-size: .8rem;
  color: var(--muted);
  margin: -14px 0 0;
}
.phone-caption .tag {
  color: var(--stamp);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .68rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}

/* mockup building blocks */
.pm-status {
  display: flex; justify-content: space-between;
  font-size: .6rem; color: var(--muted);
  padding-bottom: 6px; border-bottom: 1px solid var(--line);
}
.pm-title { font-weight: 700; font-size: .85rem; }
.pm-app {
  display: flex; align-items: center; gap: 8px;
  border: 1px solid var(--line); border-radius: 8px; padding: 8px;
}
.pm-icon {
  width: 30px; height: 30px; border-radius: 7px; flex: none;
  display: grid; place-items: center; color: #fff; font-weight: 800; font-size: .82rem;
}
.pm-app-name { font-weight: 600; font-size: .76rem; }
.pm-app-sub { color: var(--muted); font-size: .64rem; }
.pm-field {
  border: 1px solid var(--line); border-radius: 6px; padding: 7px 8px;
  color: var(--muted); font-size: .7rem;
}
.pm-btn {
  background: var(--sky); color: #fff; text-align: center;
  border-radius: 6px; padding: 8px; font-weight: 600; font-size: .74rem;
}
.pm-btn--ink { background: var(--ink); }
.pm-row { display: flex; gap: 6px; }
.pm-check { color: var(--good); font-weight: 700; font-size: .76rem; }
.pm-badge {
  align-self: center; background: var(--good-soft); color: var(--good);
  border-radius: 999px; padding: 3px 10px; font-weight: 600; font-size: .68rem;
}

@media (max-width: 880px) {
  .setup-step { grid-template-columns: 1fr; gap: 16px; }
  .phone { justify-self: start; }
}

/* ============================================================
   Data list box — country & port lists
   ============================================================ */
.prose .list-box {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin: 1.4em 0;
  font-size: .95rem;
  line-height: 1.6;
}
.prose .list-box h3 {
  font-size: .9rem;
  font-weight: 700;
  color: var(--sky-deep);
  margin: 0 0 12px;
}
.prose .list-box p { margin: 0 0 .65em; }
.prose .list-box p:last-child { margin-bottom: 0; }
.prose .list-box strong { color: var(--ink); }
.prose .list-box .src {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-size: .78rem;
  color: var(--muted);
}

/* ============================================================
   Contact form
   ============================================================ */
.form-wrap {
  max-width: 560px;
  margin: 0 auto;
  padding: 8px 0 72px;
}
.form-field { margin-bottom: 20px; }
.form-field label {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: .9rem;
  margin-bottom: 6px;
  color: var(--ink);
}
.form-field label .opt { font-weight: 400; color: var(--muted); font-size: .8rem; }
.form-field input[type="text"],
.form-field input[type="email"],
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color .15s, box-shadow .15s;
}
.form-field textarea { min-height: 140px; resize: vertical; }
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--sky);
  box-shadow: 0 0 0 3px rgba(29,111,184,.14);
}
.form-status {
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: .95rem;
  display: none;
}
.form-status--ok { display: block; background: var(--good-soft); color: var(--good); }
.form-status--err { display: block; background: var(--stamp-soft); color: var(--stamp); }

/* hero "get real human help" button */
.hero-human {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: .95rem;
  color: var(--ink);
  transition: border-color .15s, background .15s, color .15s;
}
.hero-human svg { width: 16px; height: 16px; color: var(--stamp); flex: none; }
.hero-human strong { font-weight: 700; color: var(--stamp); }
.hero-human:hover {
  border-color: var(--stamp);
  background: var(--stamp-soft);
  text-decoration: none;
}

/* ── Visa checker 入口 CTA ───────────────────────────────────────────
   全站复用的引流块：放在签证指南与 guides 索引里，把读者送进交互工具。
   与 .prose .callout 同款视觉，但**不依赖 .prose 父级**，任何页面都能用。 */
.vc-cta {
  display: block;
  background: var(--mist);
  border-left: 3px solid var(--sky);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 16px 20px;
  margin: 1.8em 0;
}
.vc-cta strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.02rem;
  color: var(--ink);
  margin-bottom: 4px;
}
.vc-cta p { margin: 0 0 8px; font-size: .98rem; line-height: 1.6; color: var(--ink); }
.vc-cta p:last-child { margin-bottom: 0; }
.vc-cta a { font-weight: 600; }