/* Balance Trans — site styles */
:root {
  --navy: #0b2a4a;
  --navy-2: #123b66;
  --blue: #1f6fb2;
  --accent: #f28c28;
  --accent-dark: #d9741a;
  --ink: #1b2533;
  --muted: #5b6878;
  --line: #e3e8ef;
  --bg: #ffffff;
  --bg-soft: #f4f7fb;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(11, 42, 74, .08);
  --max: 1180px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { line-height: 1.25; color: var(--navy); margin: 0 0 .6em; }
h1 { font-size: clamp(2rem, 4.2vw, 3.1rem); font-weight: 800; letter-spacing: -.02em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; letter-spacing: -.01em; }
h3 { font-size: 1.2rem; font-weight: 700; }
p { margin: 0 0 1em; }
.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.section { padding: 80px 0; }
.section.soft { background: var(--bg-soft); }
.section.dark { background: var(--navy); color: #d8e3f0; }
.section.dark h2, .section.dark h3 { color: #fff; }
.eyebrow {
  display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--accent-dark); margin-bottom: .6rem;
}
.section-head { max-width: 720px; margin-bottom: 44px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.lead { font-size: 1.12rem; color: var(--muted); }
.dark .lead { color: #b9c9dc; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 12px; top: 12px; background: #fff; padding: 8px 12px; z-index: 100; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 13px 22px; border-radius: 999px;
  font-weight: 700; font-size: .98rem; border: 2px solid transparent; cursor: pointer;
  transition: background .2s, color .2s, transform .2s; text-decoration: none !important;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); transform: translateY(-1px); }
.btn-ghost { border-color: rgba(255,255,255,.5); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,.1); }
.btn-outline { border-color: var(--navy); color: var(--navy); }
.btn-outline:hover { background: var(--navy); color: #fff; }

/* Top bar + header */
.topbar { background: var(--navy); color: #c9d6e6; font-size: .85rem; }
.topbar .container { display: flex; justify-content: space-between; gap: 16px; padding-top: 7px; padding-bottom: 7px; flex-wrap: wrap; }
.topbar a { color: #fff; }
.topbar .contacts { display: flex; gap: 18px; flex-wrap: wrap; }
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.96); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 20px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.2rem; color: var(--navy); text-decoration: none !important; }
.logo small { display: block; font-weight: 500; font-style: normal; font-size: .68rem; color: var(--muted); letter-spacing: .04em; text-transform: none; }
.logo .logo-mark { width: auto; height: 40px; }
.logo .wordmark { font-style: italic; text-transform: uppercase; letter-spacing: .01em; color: #1d3f6e; line-height: 1.15; }
.site-footer .logo .wordmark { color: #fff; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav a { color: var(--ink); font-weight: 600; font-size: .93rem; padding: 8px 10px; border-radius: 8px; white-space: nowrap; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--blue); background: var(--bg-soft); text-decoration: none; }
.nav .btn { margin-left: 8px; padding: 10px 18px; color: #fff; }
.nav .btn:hover { background: var(--accent-dark); color: #fff; }
.lang { display: flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; margin-left: 8px; }
.lang a { padding: 5px 11px; font-size: .8rem; font-weight: 700; border-radius: 0; color: var(--muted); }
.lang a.active { background: var(--navy); color: #fff; }
.menu-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; color: var(--navy); }

/* Hero */
.hero {
  position: relative; overflow: hidden; color: #fff;
  background:
    radial-gradient(1000px 500px at 85% -10%, rgba(31,111,178,.55), transparent 60%),
    radial-gradient(700px 400px at -10% 110%, rgba(242,140,40,.25), transparent 60%),
    linear-gradient(135deg, #082038 0%, #0b2a4a 55%, #123b66 100%);
}
.hero .container { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; padding-top: 88px; padding-bottom: 96px; }
.hero h1 { color: #fff; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero p.lead { color: #c4d3e5; max-width: 600px; }
.hero .actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.hero .badges { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 34px; font-size: .9rem; color: #c4d3e5; }
.hero .badges span::before { content: "✓"; color: var(--accent); font-weight: 800; margin-right: 7px; }
.page-hero { background: linear-gradient(135deg, #082038, #123b66); color: #c4d3e5; padding: 64px 0 56px; }
.page-hero h1 { color: #fff; max-width: 860px; }
.page-hero .lead { color: #c4d3e5; max-width: 760px; }
.crumbs { font-size: .85rem; margin-bottom: 14px; color: #9fb4cc; }
.crumbs a { color: #c4d3e5; }

/* Route card */
.routes { background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.14); border-radius: 20px; padding: 26px; backdrop-filter: blur(6px); }
.routes h2 { color: #fff; font-size: 1rem; text-transform: uppercase; letter-spacing: .1em; margin-bottom: 16px; }
.route { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 10px; padding: 14px 0; border-top: 1px dashed rgba(255,255,255,.18); }
.route:first-of-type { border-top: 0; }
.route b { color: #fff; display: block; font-size: 1rem; }
.route small { color: #9fb4cc; font-size: .78rem; }
.route .to { text-align: right; }
.route .arrow { color: var(--accent); font-size: 1.4rem; }
.route-tag { display: inline-block; margin-top: 4px; font-size: .7rem; font-weight: 700; padding: 2px 8px; border-radius: 99px; background: rgba(242,140,40,.18); color: #ffc58a; }

/* Grids & cards */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; transition: box-shadow .2s, transform .2s; }
.card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.card p { color: var(--muted); margin-bottom: 0; }
.card .more { display: inline-block; margin-top: 14px; font-weight: 700; }
.icon { width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center; background: #e8f1fa; color: var(--blue); margin-bottom: 16px; }
.icon svg { width: 26px; height: 26px; }
.feature {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0; border-radius: 20px; overflow: hidden;
  background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow);
}
.feature + .feature { margin-top: 28px; }
.feature .art { background: linear-gradient(135deg, #0b2a4a, #1f6fb2); color: #fff; padding: 40px; display: flex; flex-direction: column; justify-content: center; }
.feature.alt .art { background: linear-gradient(135deg, #7a3b05, #f28c28); order: 2; }
.feature .art .big { font-size: 2.2rem; font-weight: 800; line-height: 1.15; margin-bottom: 10px; }
.feature .art p { color: rgba(255,255,255,.85); }
.feature .body { padding: 40px; }
.ticks { list-style: none; padding: 0; margin: 0 0 1.2em; }
.ticks li { position: relative; padding-left: 28px; margin-bottom: 9px; }
.ticks li::before { content: ""; position: absolute; left: 0; top: .45em; width: 16px; height: 16px; border-radius: 50%; background: var(--accent) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.5l2.5 2.5L12 5.5' stroke='white' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") center/12px no-repeat; }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { font-size: .82rem; font-weight: 600; background: var(--bg-soft); border: 1px solid var(--line); color: var(--navy); padding: 6px 12px; border-radius: 999px; }

/* Steps */
.steps { counter-reset: step; }
.step { position: relative; padding: 26px 24px 24px; background: #fff; border-radius: var(--radius); border: 1px solid var(--line); }
.step::before { counter-increment: step; content: "0" counter(step); font-weight: 800; font-size: 1.6rem; color: var(--accent); display: block; margin-bottom: 8px; }
.step p { color: var(--muted); margin: 0; }
.dark .step { background: rgba(255,255,255,.05); border-color: rgba(255,255,255,.12); }
.dark .step p { color: #b9c9dc; }

/* Tables */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); margin: 1.2em 0 1.6em; }
table { border-collapse: collapse; width: 100%; min-width: 560px; font-size: .95rem; }
th, td { text-align: left; padding: 13px 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: var(--bg-soft); color: var(--navy); font-weight: 700; }
tr:last-child td { border-bottom: 0; }

/* FAQ */
.faq details { border: 1px solid var(--line); border-radius: 12px; background: #fff; margin-bottom: 12px; }
.faq summary { cursor: pointer; list-style: none; padding: 18px 22px; font-weight: 700; color: var(--navy); display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.4rem; line-height: 1; color: var(--accent); }
.faq details[open] summary::after { content: "–"; }
.faq .answer { padding: 0 22px 18px; color: var(--muted); }

/* Prose (articles & service pages) */
.layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 48px; align-items: start; }
.prose h2 { margin-top: 1.8em; font-size: 1.65rem; }
.prose h3 { margin-top: 1.4em; }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li { margin-bottom: .4em; }
.prose .note { background: #fff7ee; border-left: 4px solid var(--accent); padding: 16px 20px; border-radius: 8px; margin: 1.4em 0; }
.aside { position: sticky; top: 96px; display: grid; gap: 20px; }
.aside .box { border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; background: var(--bg-soft); }
.aside .box.cta { background: var(--navy); color: #c4d3e5; border: 0; }
.aside .box.cta h3 { color: #fff; }
.aside ul { list-style: none; padding: 0; margin: 0; }
.aside li { padding: 7px 0; border-bottom: 1px solid var(--line); }
.aside li:last-child { border-bottom: 0; }
.meta { font-size: .88rem; color: #9fb4cc; }

/* Posts */
.post-card { display: flex; flex-direction: column; }
.post-card .tag { font-size: .75rem; font-weight: 700; color: var(--accent-dark); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 8px; }
.post-card h3 a { color: var(--navy); }

/* CTA band */
.cta-band { background: linear-gradient(120deg, var(--accent), #f6a654); color: #fff; border-radius: 22px; padding: 48px; display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }
.cta-band h2 { color: #fff; margin-bottom: .3em; }
.cta-band p { margin: 0; color: rgba(255,255,255,.92); }
.cta-band .btn { background: var(--navy); color: #fff; }
.cta-band .btn:hover { background: #061a2e; }

/* Forms */
.form { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form .full { grid-column: 1 / -1; }
.form label { display: block; font-weight: 600; font-size: .9rem; margin-bottom: 6px; color: var(--navy); }
.form input, .form select, .form textarea {
  width: 100%; font: inherit; padding: 12px 14px; border: 1px solid #cfd8e3; border-radius: 10px; background: #fff;
}
.form input:focus, .form select:focus, .form textarea:focus { outline: 2px solid rgba(31,111,178,.35); border-color: var(--blue); }
.form textarea { min-height: 120px; resize: vertical; }
.form-note { font-size: .85rem; color: var(--muted); }
.contact-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.contact-list li { display: flex; gap: 14px; align-items: center; }
.contact-list .icon { margin: 0; flex: none; }

/* Footer */
.site-footer { background: #061a2e; color: #9fb4cc; padding: 64px 0 28px; font-size: .93rem; }
.site-footer h3 { color: #fff; font-size: 1rem; margin-bottom: 14px; }
.site-footer a { color: #c9d6e6; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 8px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 36px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); margin-top: 44px; padding-top: 22px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: .85rem; }
.site-footer .logo { color: #fff; margin-bottom: 12px; }

/* Floating contact */
.float { position: fixed; right: 18px; bottom: 18px; display: grid; gap: 10px; z-index: 60; }
.float a { width: 52px; height: 52px; border-radius: 50%; display: grid; place-items: center; color: #fff; box-shadow: 0 8px 20px rgba(0,0,0,.2); font-weight: 800; font-size: .8rem; text-decoration: none; }
.float .zalo { background: #0068ff; }
.float .wa { background: #25d366; }
.float .wechat { background: #07c160; font-size: .85rem; }

/* Simplified Chinese: system CJK fonts (Google Fonts is not used on Chinese pages) */
html[lang="zh-Hans"] body { font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", system-ui, sans-serif; line-height: 1.8; }
html[lang="zh-Hans"] h1, html[lang="zh-Hans"] h2 { letter-spacing: 0; }
html[lang="zh-Hans"] .eyebrow { letter-spacing: .04em; }

/* Callback (one-field) form */
.callback-band { background: var(--bg-soft); border-bottom: 1px solid var(--line); padding: 22px 0; }
.callback { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.callback-text { flex: 1 1 260px; display: flex; flex-direction: column; }
.callback-text b { color: var(--navy); font-size: 1.05rem; }
.callback-text span { color: var(--muted); font-size: .92rem; }
.callback input[type="tel"] { flex: 1 1 200px; font: inherit; padding: 12px 16px; border: 1px solid #cfd8e3; border-radius: 999px; background: #fff; min-width: 0; }
.callback input[type="tel"]:focus { outline: 2px solid rgba(31,111,178,.35); border-color: var(--blue); }
.callback .btn { flex: 0 0 auto; }
.callback-band .form-note, .callback-box .form-note { margin: 8px 0 0; font-size: .78rem; }
.callback-box .callback-text, .callback-box input[type="tel"], .callback-box .btn { flex-basis: 100%; justify-content: center; }
.form-status { margin: 8px 0 0; font-weight: 600; font-size: .92rem; min-height: 0; }
.form-status:empty { display: none; }
.form-status.ok { color: #13804b; }
.form-status.err { color: #c0392b; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.float .call { background: var(--accent); }

/* Responsive */
@media (max-width: 1000px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .hero .container { grid-template-columns: 1fr; padding-top: 60px; padding-bottom: 64px; }
  .layout { grid-template-columns: minmax(0, 1fr); }
  .aside { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 1140px) {
  .menu-toggle { display: block; }
  .nav { display: none; position: absolute; top: 72px; left: 0; right: 0; flex-direction: column; align-items: stretch; background: #fff; border-bottom: 1px solid var(--line); padding: 12px 20px 20px; box-shadow: var(--shadow); }
  .nav.open { display: flex; }
  .nav .btn { margin: 8px 0 0; justify-content: center; }
  .lang { margin: 8px 0 0; align-self: flex-start; }
}
@media (max-width: 720px) {
  .section { padding: 56px 0; }
  .container { padding: 0 16px; }
  .grid-2, .grid-3, .grid-4, .feature, .form, .footer-grid { grid-template-columns: 1fr; }
  .feature.alt .art { order: 0; }
  .feature .art, .feature .body { padding: 28px; }
  .cta-band { padding: 32px 24px; }
  .topbar .hide-sm { display: none; }
}

/* Partner logos */
.partners { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 16px; }
.partner { display: flex; align-items: center; justify-content: center; height: 104px; padding: 16px 20px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); }
.partner img { max-width: 100%; max-height: 64px; width: auto; height: auto; object-fit: contain; }
.partner-name { font-weight: 800; font-size: .95rem; line-height: 1.25; text-align: center; color: var(--ink, #12213a); }
@media (max-width: 520px) { .partners { grid-template-columns: repeat(2, 1fr); gap: 10px; } .partner { height: 88px; padding: 12px; } }

/* VLA membership */
.member-badge { display: flex; align-items: center; gap: 16px; max-width: 520px; margin: 0 auto 28px; padding: 14px 20px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); color: inherit; text-decoration: none; }
.member-badge:hover { box-shadow: var(--shadow); }
.member-badge img { flex: none; width: 64px; height: 64px; }
.member-badge small { display: block; font-size: .75rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.member-badge b { display: block; line-height: 1.3; }
.prose .member-badge { margin: 20px 0 0; }
.footer-member { display: inline-flex; align-items: center; gap: 10px; margin-top: 4px; font-size: .85rem; line-height: 1.35; }
.footer-member img { flex: none; width: 40px; height: 40px; background: #fff; border-radius: 50%; padding: 2px; }