:root {
  color-scheme: light;
  --bg: #fff;
  --surface-soft: #f5f8f8;
  --text: #0b222a;
  --muted: #5c686c;
  --accent: #064b54;
  --accent-strong: #033940;
  --line: #d8e0e2;
  --page: min(1440px, calc(100vw - 64px));
  --header-height: 72px;
  --radius: 12px;
  --pill: 999px;
  --shadow: 0 22px 70px rgba(6, 75, 84, .09);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: "Avenir Next", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif; font-size: 16px; line-height: 1.65; -webkit-font-smoothing: antialiased; }
main [id] { scroll-margin-top: calc(var(--header-height) + 24px); }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
img { display: block; max-width: 100%; }
figure { margin: 0; }
.section-shell { width: var(--page); margin-inline: auto; }
.sr-only, .skip-link:not(:focus) { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: 12px; left: 12px; z-index: 100; padding: 10px 16px; color: #fff; background: var(--accent); border-radius: var(--pill); }

.site-header { position: sticky; top: 0; z-index: 30; height: var(--header-height); border-bottom: 1px solid rgba(204,215,216,.75); background: rgba(255,255,255,.93); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); }
.header-inner { width: var(--page); height: 100%; margin-inline: auto; display: grid; grid-template-columns: 220px minmax(0,1fr) auto; align-items: center; gap: 28px; }
.brand { width: 204px; }
.brand img { width: 60%; height: auto; }
.site-nav { display: flex; justify-content: center; align-items: center; gap: clamp(18px,2vw,34px); white-space: nowrap; }
.site-nav a, .language-link { position: relative; font-size: 14px; font-weight: 600; }
.site-nav a::after { content: ""; position: absolute; right: 0; bottom: -8px; left: 0; height: 1px; background: var(--accent); transform: scaleX(0); transform-origin: right; transition: transform 220ms ease; }
.site-nav a:hover::after, .site-nav a:focus-visible::after, .site-nav a.is-current::after { transform: scaleX(1); transform-origin: left; }
.header-actions { display: flex; align-items: center; gap: 16px; }
.nav-toggle { display: none; }

.button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; padding: 0 25px; border: 1px solid transparent; border-radius: var(--pill); cursor: pointer; font-weight: 700; line-height: 1; white-space: nowrap; transition: transform 180ms ease, background-color 180ms ease, color 180ms ease, border-color 180ms ease; }
.button:hover { transform: translateY(-2px); }
.button:active { transform: translateY(1px) scale(.98); }
.button-primary { color: #fff; background: var(--accent); }
.button-primary:hover { background: var(--accent-strong); }
.button-secondary { color: var(--accent); border-color: var(--accent); background: #fff; }
.button-secondary:hover { color: #fff; background: var(--accent); }
.button-compact { min-height: 42px; padding-inline: 20px; font-size: 14px; }
.button-light { color: var(--accent); background: #fff; }

.partner-hero { min-height: min(650px, calc(100dvh - var(--header-height))); display: grid; grid-template-columns: minmax(520px,.82fr) minmax(620px,1.18fr); align-items: center; gap: 24px; padding-block: 52px 58px; }
.partner-hero-copy { padding-left: clamp(0px,2vw,32px); position: relative; z-index: 2; }
.partner-hero h1 { margin: 0; font-size: clamp(46px,3.5vw,54px); font-weight: 650; letter-spacing: -.055em; line-height: 1.25; }
.partner-hero-copy > p { max-width: 610px; margin: 30px 0 0; color: var(--muted); font-size: clamp(17px,1.25vw,20px); line-height: 1.8; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.partner-hero-media { height: clamp(370px,36vw,520px); overflow: hidden; }
.partner-hero-media img { width: 100%; height: 100%; object-fit: contain; object-position: center; }

.partner-types { padding-block: 70px 78px; border-top: 1px solid var(--line); }
.partner-types h2, .support-section h2, .product-section h2, .path-section h2, .capability-section h2, .faq-section h2 { margin: 0; font-size: clamp(30px,2.7vw,42px); font-weight: 650; letter-spacing: -.04em; line-height: 1.3; }
.partner-type-grid { display: grid; grid-template-columns: repeat(3,1fr); margin-top: 42px; }
.partner-type { display: grid; grid-template-columns: 56px 1fr; gap: 18px; padding: 2px 42px 8px 0; }
.partner-type + .partner-type { padding-left: 42px; border-left: 1px solid var(--line); }
.partner-type h3, .support-item h3, .partner-product h3, .capability-item h3 { margin: 0; color: var(--accent); font-size: 22px; font-weight: 650; }
.partner-type p, .support-item p, .partner-product p, .capability-item p { margin: 10px 0 0; color: var(--muted); }
.icon-circle { width: 48px; height: 48px; display: grid; place-items: center; border: 1px solid #dfe7e8; border-radius: 50%; background: #f7f9f9; color: var(--accent); flex: 0 0 auto; }
.icon-circle svg { width: 26px; height: 26px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.exchange-photo { height: clamp(270px,30vw,430px); margin-top: 48px; overflow: hidden; border-radius: var(--radius); box-shadow: var(--shadow); }
.exchange-photo img { width: 100%; height: 100%; object-fit: cover; object-position: center 48%; }
.section-note { max-width: 900px; margin: 30px auto 0; color: var(--muted); text-align: center; }

.support-section { padding-block: 88px; border-top: 1px solid var(--line); }
.support-rail { position: relative; display: grid; grid-template-columns: repeat(4,1fr); gap: 36px; margin-top: 56px; }
.support-rail::before { content: ""; position: absolute; top: 24px; right: 12.5%; left: 12.5%; height: 1px; background: var(--accent); opacity: .72; }
.support-item { position: relative; z-index: 1; text-align: center; }
.support-item .icon-circle { margin-inline: auto; background: #fff; }
.support-item h3 { margin-top: 18px; }
.support-item p { line-height: 1.8; }
.photo-placeholder { min-height: 270px; display: grid; place-content: center; gap: 8px; margin-top: 54px; border: 1px solid #cbd6d8; border-radius: var(--radius); color: #728084; background: linear-gradient(135deg,#fff,#f9fbfb); text-align: center; }
.photo-placeholder strong { color: var(--accent); font-size: 16px; }

.product-section { padding-block: 86px; background: #f7f9f9; }
.partner-product-grid { display: grid; grid-template-columns: repeat(3,1fr); margin-top: 48px; }
.partner-product { padding: 0 36px; }
.partner-product:first-child { padding-left: 0; }
.partner-product:last-child { padding-right: 0; }
.partner-product + .partner-product { border-left: 1px solid var(--line); }
.partner-product figure { height: 300px; margin-top: 22px; }
.partner-product img { width: 100%; height: 100%; object-fit: contain; }
.partner-product > a { display: inline-flex; gap: 8px; margin-top: 20px; padding-bottom: 4px; border-bottom: 1px solid var(--accent); color: var(--accent); font-weight: 700; }

.path-section { padding-block: 88px; }
.path-list { position: relative; display: grid; grid-template-columns: repeat(5,1fr); gap: 24px; margin: 52px 0 0; padding: 0; list-style: none; }
.path-list::before { content: ""; position: absolute; top: 25px; right: 10%; left: 10%; height: 1px; background: var(--accent); }
.path-list li { position: relative; display: grid; justify-items: center; text-align: center; }
.path-list span { z-index: 1; width: 50px; height: 50px; display: grid; place-items: center; border: 1px solid var(--accent); border-radius: 50%; color: #fff; background: var(--accent); font-weight: 700; }
.path-list strong { margin-top: 18px; font-size: 19px; }
.path-list small { max-width: 190px; margin-top: 8px; color: var(--muted); font-size: 14px; }
.policy-summary { margin: 38px 0 0; color: var(--muted); text-align: center; }

.capability-section { padding-block: 88px; border-top: 1px solid var(--line); }
.capability-grid { display: grid; grid-template-columns: minmax(0,.85fr) minmax(520px,1.15fr); gap: 80px; }
.capability-item { display: grid; grid-template-columns: 48px 1fr; gap: 20px; margin-top: 34px; padding-bottom: 28px; border-bottom: 1px solid var(--line); }
.capability-item h3 { font-size: 20px; }
.anonymous-note { margin: 22px 0 0; color: var(--muted); font-size: 14px; }
.capability-media { display: grid; gap: 18px; }
.capability-photo { height: 230px; overflow: hidden; border-radius: var(--radius); box-shadow: var(--shadow); }
.capability-photo img { width: 100%; height: 100%; object-fit: cover; object-position: center 52%; }
.capability-media .photo-placeholder { min-height: 230px; margin: 0; }

.faq-section { padding-block: 82px; border-top: 1px solid var(--line); }
.faq-list { margin-top: 34px; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.faq-list details + details { border-top: 1px solid var(--line); }
.faq-list summary { position: relative; padding: 22px 66px 22px 28px; cursor: pointer; font-size: 18px; font-weight: 650; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; top: 18px; right: 24px; width: 30px; height: 30px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: var(--accent); font-size: 20px; font-weight: 400; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list p { max-width: 1000px; margin: -4px 66px 22px 28px; color: var(--muted); }

.apply-section { padding-block: 72px; color: #fff; background: linear-gradient(125deg,#064b54,#033940); }
.apply-grid { display: grid; grid-template-columns: minmax(300px,.65fr) minmax(600px,1.35fr); gap: 80px; align-items: start; }
.apply-intro h2 { margin: 0; font-size: clamp(34px,3vw,46px); line-height: 1.25; letter-spacing: -.04em; }
.apply-intro p { margin: 20px 0 0; color: #c7d9db; }
.apply-intro a { display: inline-flex; gap: 8px; margin-top: 28px; padding-bottom: 4px; border-bottom: 1px solid rgba(255,255,255,.7); }
.partner-form { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 22px; }
.partner-form label { display: grid; gap: 7px; color: #dce9ea; font-size: 13px; font-weight: 700; }
.partner-form input, .partner-form select, .partner-form textarea { width: 100%; padding: 12px 14px; border: 1px solid rgba(255,255,255,.35); border-radius: 8px; outline: none; color: var(--text); background: #fff; }
.partner-form input:focus, .partner-form select:focus, .partner-form textarea:focus { border-color: #7ec8d0; box-shadow: 0 0 0 3px rgba(126,200,208,.22); }
.partner-form [aria-invalid="true"] { border-color: #ffb4ab; }
.form-wide { grid-column: 1 / -1; }
.form-status { min-height: 20px; margin: 0; color: #ffd2cc; font-size: 13px; }
.form-status.is-success { color: #b9f4d0; }
.partner-form .button { justify-self: start; }

.site-footer { padding-block: 68px 26px; color: #dce7e8; background: #022f35; }
.footer-grid { display: grid; grid-template-columns: minmax(280px,1.4fr) repeat(3,1fr); gap: 50px; }
.footer-brand img { width: 150px; filter: brightness(0) invert(1); }
.footer-brand p { max-width: 420px; margin: 16px 0 0; color: #aebfc1; }
.footer-grid h2 { margin: 0 0 18px; color: #fff; font-size: 14px; }
.footer-grid a { display: block; margin: 11px 0; color: #aebfc1; font-size: 14px; }
.footer-grid a:hover { color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 54px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.16); color: #8fa7aa; font-size: 13px; }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity 700ms ease, transform 700ms ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 1180px) {
  :root { --page: min(100% - 40px,1040px); }
  .header-inner { grid-template-columns: 170px minmax(0,1fr) auto; gap: 18px; }
  .site-nav { gap: 16px; }
  .site-nav a { font-size: 13px; }
  .partner-hero { grid-template-columns: minmax(430px,.9fr) minmax(0,1.1fr); }
  .partner-hero h1 { font-size: 45px; }
  .capability-grid { gap: 48px; }
}

@media (max-width: 860px) {
  :root { --page: min(100% - 32px,720px); --header-height: 64px; }
  .header-inner { position: relative; grid-template-columns: 1fr auto auto; }
  .brand { width: 160px; }
  .nav-toggle { display: grid; width: 42px; height: 42px; place-content: center; gap: 6px; padding: 0; border: 1px solid var(--line); border-radius: 50%; background: #fff; cursor: pointer; }
  .nav-toggle-line { width: 18px; height: 1px; background: var(--accent); }
  .site-nav { position: absolute; top: calc(100% + 1px); right: 0; left: 0; display: none; align-items: stretch; gap: 0; padding: 14px; border: 1px solid var(--line); background: #fff; box-shadow: var(--shadow); }
  .site-nav.is-open { display: grid; }
  .site-nav a { padding: 12px; font-size: 15px; }
  .site-nav a::after { display: none; }
  .header-actions .button { display: none; }
  .partner-hero { min-height: auto; grid-template-columns: 1fr; gap: 12px; padding-block: 52px 24px; }
  .partner-hero-copy { padding-left: 0; }
  .partner-hero h1 { font-size: clamp(38px,8.4vw,54px); }
  .partner-hero-copy > p { margin-top: 22px; font-size: 17px; }
  .partner-hero-media { height: min(58vw,430px); }
  .partner-type-grid { grid-template-columns: 1fr; }
  .partner-type, .partner-type + .partner-type { grid-template-columns: 56px 1fr; padding: 24px 0; border-left: 0; border-bottom: 1px solid var(--line); }
  .exchange-photo { height: min(58vw,410px); margin-top: 38px; }
  .support-rail { grid-template-columns: 1fr 1fr; row-gap: 42px; }
  .support-rail::before { display: none; }
  .partner-product-grid { grid-template-columns: 1fr; }
  .partner-product, .partner-product:first-child, .partner-product:last-child { display: grid; grid-template-columns: 1fr 1.25fr; gap: 26px; padding: 34px 0; }
  .partner-product + .partner-product { border-top: 1px solid var(--line); border-left: 0; }
  .partner-product h3, .partner-product p, .partner-product > a { grid-column: 2; }
  .partner-product figure { grid-row: 1 / span 3; height: 220px; margin: 0; }
  .partner-product p { margin-top: -10px; }
  .partner-product > a { justify-self: start; margin-top: -4px; }
  .path-list { grid-template-columns: 1fr; gap: 0; }
  .path-list::before { top: 25px; bottom: 25px; left: 25px; width: 1px; height: auto; }
  .path-list li { grid-template-columns: 50px 1fr; justify-items: start; gap: 0 20px; padding-bottom: 30px; text-align: left; }
  .path-list span { grid-row: 1 / span 2; }
  .path-list strong { margin-top: 0; align-self: end; }
  .path-list small { max-width: none; }
  .capability-grid, .apply-grid { grid-template-columns: 1fr; gap: 46px; }
  .capability-media { grid-template-columns: 1fr 1fr; }
  .apply-section { padding-block: 64px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
  :root { --page: calc(100% - 28px); }
  .header-inner { grid-template-columns: 1fr auto auto; gap: 10px; }
  .brand { width: 140px; }
  .brand img { width: 70%; }
  .language-link { font-size: 13px; }
  .partner-hero { padding-top: 42px; }
  .partner-hero h1 { font-size: clamp(34px,10.2vw,45px); line-height: 1.28; }
  .hero-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
  .button { min-height: 46px; padding-inline: 12px; font-size: 14px; }
  .partner-hero-media { height: 62vw; }
  .partner-types, .support-section, .product-section, .path-section, .capability-section, .faq-section { padding-block: 62px; }
  .partner-types h2, .support-section h2, .product-section h2, .path-section h2, .capability-section h2, .faq-section h2 { font-size: 30px; }
  .partner-type h3 { font-size: 20px; }
  .exchange-photo { height: 62vw; border-radius: 8px; }
  .support-rail { grid-template-columns: 1fr; }
  .photo-placeholder { min-height: 220px; }
  .partner-product, .partner-product:first-child, .partner-product:last-child { grid-template-columns: 1fr; gap: 14px; }
  .partner-product h3, .partner-product p, .partner-product > a { grid-column: 1; }
  .partner-product figure { grid-row: auto; height: 230px; }
  .partner-product p, .partner-product > a { margin-top: 0; }
  .capability-media { grid-template-columns: 1fr; }
  .capability-media .photo-placeholder { min-height: 210px; }
  .faq-list summary { padding: 19px 58px 19px 18px; font-size: 16px; }
  .faq-list summary::after { right: 16px; }
  .faq-list p { margin: 0 18px 20px; }
  .partner-form { grid-template-columns: 1fr; }
  .form-wide { grid-column: 1; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-brand { grid-column: auto; }
  .footer-bottom { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
  .reveal { opacity: 1; transform: none; }
}