:root {
  --ink: #1d1d1f;
  --ink-2: #494949;
  --ink-3: #86868b;
  --blue: #0071e3;
  --blue-hover: #0077ed;
  --black: #000;
  --white: #fff;
  --bg-soft: #f5f5f7;
  --link-blue: #0066cc;
  --radius: 18px;
  --max: 1200px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  line-height: 1.5;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  letter-spacing: -0.01em;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ===== NAV (apple-like translucent) ===== */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 1000;
  background: rgba(251,251,253,.8);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid transparent;
  transition: background .4s, border-color .4s;
}
.nav.scrolled { background: rgba(251,251,253,.92); border-bottom-color: rgba(0,0,0,.08); }

.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 48px; max-width: 1000px; margin: 0 auto; padding: 0 22px;
}

.logo { display: flex; align-items: center; gap: 9px; font-size: 17px; font-weight: 600; color: var(--ink); }
.logo-mark {
  width: 28px; height: 28px; border-radius: 7px;
  background: var(--black);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 13px; font-weight: 700;
}

.nav-links { display: flex; gap: 32px; list-style: none; }
.nav-links a {
  font-size: 13px; color: var(--ink-2);
  transition: color .25s; font-weight: 400;
}
.nav-links a:hover, .nav-links a.active { color: var(--ink); }

.nav-cta {
  background: var(--blue); color: #fff;
  padding: 5px 14px; border-radius: 980px;
  font-size: 12px; font-weight: 400;
  transition: background .25s;
}
.nav-cta:hover { background: var(--blue-hover); }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 4px; padding: 6px; }
.nav-toggle span { width: 18px; height: 1.5px; background: var(--ink); border-radius: 2px; }

/* ===== HERO (apple full-bleed) ===== */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex; flex-direction: column; justify-content: flex-end;
  overflow: hidden;
  background: #000;
  padding: 140px 0 60px;
  text-align: center;
  color: #fff;
}

.hero-bg {
  position: absolute; inset: 0;
  background: url("../img/hero-sea.jpg") center 40% / cover no-repeat;
  filter: brightness(.96) saturate(1.08) contrast(1.02);
}
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 50% 92%, rgba(1,10,24,.22) 0%, rgba(1,10,24,0) 62%),
    linear-gradient(180deg, rgba(1,13,28,.03) 0%, rgba(1,13,28,.08) 42%, rgba(1,9,21,.56) 74%, rgba(0,6,15,.84) 100%);
}

.hero-content { position: relative; z-index: 1; }

.hero h1 {
  font-size: clamp(44px, 7vw, 84px);
  line-height: 1.05; font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  text-shadow: 0 2px 30px rgba(0,0,0,.35);
}
.hero h1 .accent {
  background: linear-gradient(90deg, #eefaff 8%, #a9e2ff 48%, #6dc8ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 21px; color: rgba(255,255,255,.82);
  font-weight: 400; max-width: 640px; margin: 0 auto 36px;
  text-shadow: 0 2px 18px rgba(0,0,0,.38);
}

.hero-actions { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; }
.hero .btn-ghost {
  color: #fff;
  background: rgba(255,255,255,.11);
  border: 1px solid rgba(255,255,255,.28);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.hero .btn-ghost:hover { background: rgba(255,255,255,.18); text-decoration: none; }

.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 12px 26px; border-radius: 980px;
  font-size: 17px; font-weight: 400; cursor: pointer;
  transition: all .25s; border: none; font-family: inherit;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-hover); }
.btn-ghost {
  background: transparent; color: var(--link-blue);
  border: none; padding: 12px 8px;
}
.btn-ghost::after { content: "›"; font-size: 20px; line-height: 1; margin-left: 2px; transition: margin .25s; }
.btn-ghost:hover { text-decoration: underline; }
.btn-ghost:hover::after { margin-left: 6px; }

/* ===== SECTION (apple rhythm) ===== */
.section { padding: 120px 0; }
.section-soft { background: var(--bg-soft); }

.section-center { text-align: center; }

.kicker {
  font-size: 14px; font-weight: 600;
  color: var(--link-blue); letter-spacing: 0;
  margin-bottom: 12px;
}

.h-xl {
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 700; letter-spacing: -0.03em; line-height: 1.05;
  color: var(--ink);
}
.h-lg {
  font-size: clamp(32px, 4.4vw, 56px);
  font-weight: 700; letter-spacing: -0.025em; line-height: 1.08;
  color: var(--ink);
}
.lede {
  font-size: 21px; color: var(--ink-2);
  font-weight: 400; line-height: 1.45;
  max-width: 620px;
}
.section-center .lede { margin: 0 auto; }

/* ===== FULL-BLEED IMAGE BANNER ===== */
.banner {
  position: relative;
  height: 640px; overflow: hidden;
}
.banner img { width: 100%; height: 100%; object-fit: cover; }
.banner-caption {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; color: #fff; padding: 0 24px;
  background: linear-gradient(180deg, rgba(0,0,0,.05), rgba(0,0,0,.45));
}
.banner-caption h2 {
  font-size: clamp(36px, 5.5vw, 64px); font-weight: 700;
  letter-spacing: -0.03em; margin-bottom: 12px;
}
.banner-caption p { font-size: 21px; color: rgba(255,255,255,.85); max-width: 560px; }

/* ===== FEATURE GRID ===== */
.features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.feature {
  background: var(--bg-soft);
  border-radius: var(--radius);
  padding: 44px 38px;
  overflow: hidden;
}
.feature h3 { font-size: 24px; font-weight: 600; letter-spacing: -0.01em; margin-bottom: 10px; }
.feature p { font-size: 15px; color: var(--ink-2); line-height: 1.55; }

/* ===== PRODUCT CARDS ===== */
.products { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.product {
  background: var(--bg-soft);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: center;
  padding-top: 40px;
  transition: transform .4s;
}
.product:hover { transform: scale(1.015); }
.product img {
  width: 100%; height: 220px; object-fit: cover;
  border-radius: 12px;
  margin: 0 20px 24px;
}
.product h3 { font-size: 21px; font-weight: 600; letter-spacing: -0.01em; margin-bottom: 8px; padding: 0 24px; }
.product p { font-size: 14.5px; color: var(--ink-2); line-height: 1.5; padding: 0 24px 20px; }
.product .link {
  color: var(--link-blue); font-size: 15px;
  display: inline-block; margin-bottom: 30px;
}
.product .link:hover { text-decoration: underline; }

/* ===== FILTERS ===== */
.filters { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; margin-bottom: 48px; }
.filter-btn {
  background: transparent; border: 1px solid rgba(0,0,0,.15);
  color: var(--ink-2); padding: 8px 20px; border-radius: 980px;
  font-size: 14px; cursor: pointer; font-family: inherit;
  transition: all .25s;
}
.filter-btn:hover { border-color: var(--ink); }
.filter-btn.active { background: var(--black); border-color: var(--black); color: #fff; }

/* ===== TESTIMONIALS ===== */
.voices { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.voice {
  background: var(--bg-soft); border-radius: var(--radius);
  padding: 36px 32px;
}
.voice blockquote { font-size: 16px; color: var(--ink); line-height: 1.6; margin-bottom: 24px; }
.voice .who { font-size: 14px; color: var(--ink-3); }
.voice .who strong { display: block; color: var(--ink); font-size: 15px; font-weight: 600; margin-bottom: 2px; }

/* ===== CERT STRIP ===== */
.certs {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: rgba(0,0,0,.08);
  border-radius: var(--radius); overflow: hidden;
}
.cert { background: var(--bg-soft); padding: 36px 24px; text-align: center; }
.cert strong { display: block; font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.cert span { font-size: 13px; color: var(--ink-3); }

/* ===== DARK CTA ===== */
.cta {
  background: #000; color: #fff;
  padding: 140px 0; text-align: center;
}
.cta h2 {
  font-size: clamp(36px, 5vw, 60px); font-weight: 700;
  letter-spacing: -0.03em; margin-bottom: 14px;
}
.cta p { font-size: 19px; color: rgba(255,255,255,.6); margin-bottom: 40px; }
.cta .btn-ghost { color: #6fd6ff; }
.cta .btn-ghost:hover { text-decoration: underline; }

/* ===== TEAM ===== */
.team { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.member { text-align: center; }
.member img {
  width: 100%; height: 260px; object-fit: cover;
  border-radius: var(--radius);
  filter: grayscale(1); transition: filter .5s;
}
.member:hover img { filter: grayscale(0); }
.member h4 { font-size: 17px; font-weight: 600; margin: 16px 0 4px; }
.member span { font-size: 13.5px; color: var(--ink-3); }

/* ===== TIMELINE ===== */
.timeline { position: relative; padding-left: 32px; max-width: 640px; }
.timeline::before {
  content: ""; position: absolute; left: 0; top: 6px; bottom: 6px;
  width: 1px; background: rgba(0,0,0,.15);
}
.t-item { position: relative; padding-bottom: 44px; }
.t-item:last-child { padding-bottom: 0; }
.t-item::before {
  content: ""; position: absolute; left: -37px; top: 4px;
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--blue); box-shadow: 0 0 0 4px rgba(0,113,227,.15);
}
.t-year { font-size: 13px; font-weight: 700; color: var(--link-blue); letter-spacing: 1px; margin-bottom: 6px; }
.t-item h3 { font-size: 19px; font-weight: 600; margin-bottom: 6px; letter-spacing: -0.01em; }
.t-item p { font-size: 15px; color: var(--ink-2); line-height: 1.6; }

/* ===== NEWS ===== */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.news-card { background: var(--bg-soft); border-radius: var(--radius); overflow: hidden; }
.news-card img { width: 100%; height: 200px; object-fit: cover; }
.news-body { padding: 26px 26px 32px; }
.news-meta { font-size: 12px; color: var(--ink-3); margin-bottom: 10px; }
.news-meta .tag { color: var(--link-blue); font-weight: 600; margin-right: 10px; }
.news-card h3 { font-size: 18px; font-weight: 600; letter-spacing: -0.01em; line-height: 1.4; margin-bottom: 10px; }
.news-card p { font-size: 14px; color: var(--ink-2); line-height: 1.6; }

/* ===== FAQ ===== */
.faq { max-width: 680px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid rgba(0,0,0,.1); }
.faq-item:first-child { border-top: 1px solid rgba(0,0,0,.1); }
.faq-q {
  width: 100%; background: none; border: none; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
  padding: 22px 4px; font-size: 17px; font-weight: 500; color: var(--ink);
  font-family: inherit; text-align: left;
}
.faq-q .plus { font-size: 24px; font-weight: 300; color: var(--ink-3); transition: transform .3s; }
.faq-item.open .plus { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-item.open .faq-a { max-height: 240px; }
.faq-a p { padding: 0 4px 22px; font-size: 15px; color: var(--ink-2); line-height: 1.65; }

/* ===== CONTACT ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 72px; align-items: start; }
.c-info .row { display: flex; gap: 18px; padding: 20px 0; border-bottom: 1px solid rgba(0,0,0,.08); }
.c-info .row strong { display: block; font-size: 13px; color: var(--ink-3); font-weight: 500; margin-bottom: 4px; }
.c-info .row span { font-size: 17px; }

.c-form { background: var(--bg-soft); border-radius: var(--radius); padding: 40px; }
.frow { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }
.fg { margin-bottom: 14px; }
.fg label { display: block; font-size: 13px; font-weight: 500; color: var(--ink-2); margin-bottom: 7px; }
.fg input, .fg select, .fg textarea {
  width: 100%; padding: 12px 14px;
  border: 1px solid rgba(0,0,0,.12); border-radius: 10px;
  font-size: 15px; font-family: inherit; color: var(--ink);
  background: #fff; transition: border-color .2s, box-shadow .2s;
}
.fg input:focus, .fg select:focus, .fg textarea:focus {
  outline: none; border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(0,113,227,.12);
}
.fg textarea { resize: vertical; min-height: 100px; }
.c-form .btn { width: 100%; justify-content: center; font-size: 16px; padding: 14px; }

.map-ph {
  height: 320px; border-radius: var(--radius);
  background: var(--bg-soft);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 8px; color: var(--ink-3); font-size: 14px;
}

/* ===== PAGE HEADER ===== */
.page-header {
  padding: 140px 0 56px;
  text-align: center;
  background: var(--bg-soft);
}
.page-header h1 { font-size: clamp(40px, 6vw, 72px); font-weight: 700; letter-spacing: -0.03em; margin-bottom: 12px; }
.page-header p { font-size: 19px; color: var(--ink-2); max-width: 520px; margin: 0 auto; }
.crumb { font-size: 13px; color: var(--ink-3); margin-bottom: 20px; }
.crumb a:hover { color: var(--ink); text-decoration: underline; }

/* ===== PARTNERS ===== */
.partners { display: flex; flex-wrap: wrap; justify-content: center; gap: 48px 64px; }
.partner { font-size: 19px; font-weight: 600; color: var(--ink-3); letter-spacing: -0.01em; transition: color .3s; }
.partner:hover { color: var(--ink); }

/* ===== FOOTER ===== */
.footer { background: var(--bg-soft); color: var(--ink-2); padding: 52px 0 40px; font-size: 12px; }
.f-top {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px; padding-bottom: 36px;
  border-bottom: 1px solid rgba(0,0,0,.1);
}
.f-brand p { margin: 14px 0 0; max-width: 300px; line-height: 1.6; }
.f-col h4 { font-size: 12px; font-weight: 600; color: var(--ink); margin-bottom: 14px; }
.f-col ul { list-style: none; display: flex; flex-direction: column; gap: 9px; }
.f-col a { transition: color .2s; }
.f-col a:hover { text-decoration: underline; }
.f-bottom {
  padding-top: 24px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
  color: var(--ink-3);
}

/* ===== ANIMATIONS ===== */
[data-animate] { opacity: 0; transform: translateY(24px); transition: opacity .8s ease, transform .8s ease; }
[data-animate].visible { opacity: 1; transform: none; }
[data-animate="2"] { transition-delay: .15s; }
[data-animate="3"] { transition-delay: .3s; }
@media (prefers-reduced-motion: reduce) {
  [data-animate] { opacity: 1; transform: none; transition: none; }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 880px) {
  .features, .products, .voices, .news-grid, .certs, .team { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .f-top { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav-cta { display: none; }
  .banner { height: 480px; }
  .section { padding: 80px 0; }
}
@media (max-width: 560px) {
  .features, .products, .voices, .news-grid, .certs, .team { grid-template-columns: 1fr; }
  .frow { grid-template-columns: 1fr; }
}

/* ===== ROUND 2 REFINEMENTS ===== */

/* typography polish */
h1, h2, h3, h4 { text-rendering: optimizeLegibility; }

/* nav refinement */
.nav-inner .nav-links { gap: 30px; }
.nav.scrolled { background: rgba(251,251,253,.96); }

/* hero refinement */
.hero { min-height: 94vh; }
.hero h1 { font-size: clamp(48px, 7.6vw, 96px); }
.hero p { font-size: 22px; line-height: 1.5; }
.hero-content { width: 100%; min-width: 0; padding-bottom: 8px; }
.hero h1, .hero p { max-width: 100%; }

/* pill button hover lift */
.btn-primary { box-shadow: 0 4px 14px rgba(0,113,227,.35); }
.btn-primary:hover { box-shadow: 0 8px 24px rgba(0,113,227,.45); transform: translateY(-1px); }

/* section kicker line */
.kicker::before { content: ""; display: inline-block; width: 28px; height: 1px; background: var(--blue); vertical-align: middle; margin-right: 10px; }

/* stats band */
.stats-band {
  background: #000; color: #fff;
  padding: 88px 0;
}
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 40px; text-align: center;
}
.stat-num {
  font-size: clamp(44px, 5vw, 68px); font-weight: 700;
  letter-spacing: -0.03em; line-height: 1;
  background: linear-gradient(180deg, #fff 30%, #8e8e93);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.stat-num small { font-size: 24px; -webkit-text-fill-color: #8e8e93; }
.stat-cap { font-size: 14px; color: #86868b; margin-top: 14px; font-weight: 400; }

/* dark feature banner (apple product style) */
.dark-banner {
  background: #000; color: #fff;
  padding: 140px 0;
  text-align: center;
}
.dark-banner .kicker { color: #6fd6ff; }
.dark-banner .kicker::before { background: #6fd6ff; }
.dark-banner h2 {
  font-size: clamp(36px, 5vw, 60px); font-weight: 700;
  letter-spacing: -0.03em; margin-bottom: 16px;
}
.dark-banner p { font-size: 19px; color: #86868b; max-width: 560px; margin: 0 auto 40px; }
.dark-banner-img {
  margin: 64px auto 0; max-width: 1040px;
  border-radius: 24px; overflow: hidden;
  box-shadow: 0 40px 100px rgba(0,0,0,.6);
}
.dark-banner-img img { width: 100%; display: block; }

/* product card refinement */
.product { transition: transform .4s cubic-bezier(.2,.6,.2,1); }
.product:hover { transform: scale(1.02); box-shadow: 0 24px 60px rgba(0,0,0,.12); background: #fff; }
.product img { transition: transform .6s cubic-bezier(.2,.6,.2,1); }
.product:hover img { transform: scale(1.04); }
.product .link { position: relative; }

/* feature card subtle hover */
.feature { transition: background .4s; }
.feature:hover { background: #f0f0f2; }
.feature h3 { font-size: 22px; }

/* cert cards refine */
.cert { transition: background .3s; }
.cert:hover { background: #fff; }
.cert strong { font-size: 15px; }

/* voice cards */
.voice { transition: background .3s; }
.voice:hover { background: #f0f0f2; }
.voice blockquote::before { content: none; }

/* news card hover */
.news-card { transition: transform .35s; }
.news-card:hover { transform: translateY(-4px); background: #f0f0f2; }
.news-card img { transition: transform .6s; }
.news-card:hover img { transform: scale(1.03); }

/* team members */
.member img { border-radius: 24px; }

/* timeline dot pulse */
.t-item::before { transition: box-shadow .3s; }
.t-item:hover::before { box-shadow: 0 0 0 7px rgba(0,113,227,.22); }

/* filter refine */
.filter-btn { font-size: 13px; padding: 7px 18px; }
.filter-btn.active { background: var(--ink); }

/* footer refine */
.footer { font-size: 12px; }
.f-bottom { font-size: 11.5px; }

/* fade-up refinement */
[data-animate] { transition: opacity .9s cubic-bezier(.2,.6,.2,1), transform .9s cubic-bezier(.2,.6,.2,1); }

/* responsive r2 */
@media (max-width: 880px) {
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 560px) {
  .dark-banner { padding: 96px 0; }
}

/* ===== ROUND 2 REFINEMENT ===== */
body { font-size: 16px; }
.container { max-width: 1120px; }

/* nav */
.nav-inner { max-width: 1120px; }
.nav-links { gap: 34px; }
.nav-links a { font-size: 13.5px; }

/* hero */
.hero h1 { letter-spacing: -0.035em; }
.hero .hero-bg { filter: brightness(.96) saturate(1.08) contrast(1.02); }
.hero-eyebrow {
  display: inline-block;
  font-size: 12px; font-weight: 600; letter-spacing: 3px;
  color: rgba(255,255,255,.82);
  background: rgba(3,22,44,.2);
  border: 1px solid rgba(255,255,255,.22);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 7px 13px;
  border-radius: 980px;
  text-transform: uppercase;
  margin-bottom: 22px;
  text-shadow: 0 2px 12px rgba(0,0,0,.36);
}

@media (max-width: 880px) {
  .hero-bg { background-position: center 34%; }
}
@media (max-width: 560px) {
  .hero { padding-top: 112px; padding-bottom: 44px; }
  .hero-bg { background-position: 56% 34%; }
  .hero-bg::after {
    background:
      linear-gradient(180deg, rgba(1,13,28,.04) 0%, rgba(1,13,28,.12) 34%, rgba(1,10,23,.62) 62%, rgba(0,6,15,.92) 100%);
  }
  .hero h1 {
    font-size: 40px; line-height: 1.08;
    overflow-wrap: anywhere;
  }
  .hero h1 .accent { display: block; }
  .hero p { font-size: 17px; line-height: 1.55; margin-bottom: 28px; }
}

/* stats */
.stats {
  background: var(--bg-soft);
  padding: 64px 0;
}
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  text-align: center;
}
.stat-num {
  font-size: 44px; font-weight: 700; letter-spacing: -0.02em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  background: none;
  -webkit-background-clip: initial;
  background-clip: initial;
  -webkit-text-fill-color: currentColor;
}
.stat-num small { font-size: 20px; color: var(--ink-3); font-weight: 500; -webkit-text-fill-color: currentColor; }
.stat-cap { font-size: 14px; color: var(--ink-3); margin-top: 4px; }

/* banner */
.banner { height: 560px; }
.banner-caption {
  background: linear-gradient(180deg, rgba(0,0,0,.1), rgba(0,0,0,.5));
}

/* feature hover */
.feature { transition: background .35s; }
.feature:hover { background: #f0f0f2; }
.feature h3 { font-size: 21px; font-weight: 600; }

/* product card - white bg with shadow */
.products { gap: 24px; }
.product {
  background: #fff;
  box-shadow: 0 1px 2px rgba(0,0,0,.04);
  padding-top: 32px;
}
.product:hover { box-shadow: 0 12px 32px rgba(0,0,0,.1); }
.product img { height: 200px; }
.product h3 { font-size: 19px; font-weight: 600; }

/* voices */
.voice blockquote { font-size: 15px; color: var(--ink-2); }

/* cert strip */
.certs { gap: 0; }
.cert { padding: 32px 20px; }

/* cta */
.cta { padding: 120px 0; }
.cta h2 { font-size: clamp(32px, 4.6vw, 52px); }

/* footer */
.footer { font-size: 12px; padding: 44px 0 36px; }
.f-top { gap: 32px; }
.f-brand p { font-size: 12px; }

/* timeline */
.t-item h3 { font-size: 17px; }
.t-item p { font-size: 14px; }

/* team */
.team { gap: 24px; }
.member img { height: 240px; border-radius: 16px; }
.member h4 { font-size: 16px; margin-top: 14px; }

/* partners */
.partner { font-size: 17px; }

/* news */
.news-card { transition: transform .3s; }
.news-card:hover { transform: translateY(-3px); }
.news-card h3 { font-size: 16px; }

/* faq */
.faq-q { font-size: 16px; }

/* contact */
.c-form { padding: 36px; }
.c-info .row { padding: 16px 0; }

/* section rhythm */
.section { padding: 100px 0; }
.section-soft { background: var(--bg-soft); }

/* mobile r2 */
@media (max-width: 880px) {
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .stat-num { font-size: 34px; }
}

/* ===== ROUND 3 REFINEMENTS ===== */

/* mobile nav dropdown */
.nav-inner { position: relative; }
.nav-links.open {
  display: flex;
  position: absolute; top: 48px; left: 0; right: 0;
  flex-direction: column; gap: 0;
  background: rgba(251,251,253,.98);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  padding: 6px 22px 16px;
  border-bottom: 1px solid rgba(0,0,0,.07);
  box-shadow: 0 20px 40px rgba(0,0,0,.08);
}
.nav-links.open a {
  display: block; padding: 13px 0;
  font-size: 15px;
  border-bottom: 1px solid rgba(0,0,0,.05);
}
.nav-links.open li:last-child a { border-bottom: none; }

/* feature cards: numbered, airy */
.features { counter-reset: feature; gap: 24px; }
.feature { position: relative; padding: 40px 34px 40px 36px; }
.feature::before {
  counter-increment: feature;
  content: "0" counter(feature);
  display: block;
  font-size: 13px; font-weight: 600;
  color: var(--link-blue); letter-spacing: 0;
  margin-bottom: 22px;
}
.feature h3 { font-size: 22px; margin-bottom: 10px; }
.feature p { line-height: 1.6; }

/* product cards: category badge + lift */
.product { position: relative; }
.product[data-category]::before {
  content: attr(data-category);
  position: absolute; top: 16px; left: 16px; z-index: 2;
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--ink);
  font-size: 11.5px; font-weight: 600;
  padding: 5px 12px; border-radius: 980px;
  letter-spacing: 0;
}
.product[data-category="diagnostic"]::before { content: "医学影像"; }
.product[data-category="lab"]::before { content: "检验设备"; }
.product[data-category="rehab"]::before { content: "康复设备"; }
.product[data-category="treatment"]::before { content: "治疗仪器"; }
.product[data-category="monitoring"]::before { content: "监测设备"; }
.product[data-category="environmental"]::before { content: "环保检测"; }

/* contact icons */
.ic {
  width: 42px; height: 42px; flex-shrink: 0;
  border-radius: 50%;
  background: #eaf3ff; color: var(--blue);
  display: flex; align-items: center; justify-content: center;
}

/* hero scroll cue */
.hero-scroll {
  position: absolute; left: 50%; bottom: 26px;
  transform: translateX(-50%);
  width: 24px; height: 38px;
  border: 1.5px solid rgba(255,255,255,.45);
  border-radius: 12px;
  display: flex; justify-content: center;
}
.hero-scroll::after {
  content: ""; width: 3px; height: 8px;
  margin-top: 7px; border-radius: 2px;
  background: rgba(255,255,255,.85);
  animation: scrollcue 1.8s ease-in-out infinite;
}
@keyframes scrollcue {
  0% { transform: translateY(0); opacity: 0; }
  35% { opacity: 1; }
  100% { transform: translateY(10px); opacity: 0; }
}

/* page header polish */
.page-header { padding-top: 132px; padding-bottom: 60px; }
.page-header h1 { letter-spacing: -0.025em; }
.page-header p { font-size: 18px; line-height: 1.55; }

/* responsive r3 */
@media (max-width: 880px) {
  .feature { padding: 32px 26px 32px 28px; }
}
@media (max-width: 560px) {
  .hero-scroll { display: none; }
}

/* ===== VALUES (about) ===== */
.values {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.value-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 40px 34px;
  box-shadow: 0 1px 2px rgba(0,0,0,.04);
  transition: transform .4s cubic-bezier(.2,.6,.2,1), box-shadow .4s;
}
.value-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,.10);
}
.value-icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: linear-gradient(135deg, #e8f4ff, #d3e9ff);
  color: var(--blue);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 22px;
}
.value-icon svg { width: 24px; height: 24px; }
.value-card h3 {
  font-size: 20px; font-weight: 600; letter-spacing: -0.01em;
  margin-bottom: 10px;
}
.value-card p {
  font-size: 15px; color: var(--ink-2); line-height: 1.65;
}
@media (max-width: 880px) {
  .values { grid-template-columns: 1fr; }
  .value-card { padding: 32px 28px; }
}

/* ===== PRODUCT ICON CARDS (p-card) ===== */
.product.p-card {
  background: #fff;
  box-shadow: 0 1px 2px rgba(0,0,0,.04);
  transition: transform .4s cubic-bezier(.2,.6,.2,1), box-shadow .4s;
  padding-top: 36px;
}
.product.p-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,.10);
}
.p-icon {
  width: 88px; height: 88px;
  margin: 0 auto 28px;
  border-radius: 20px;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
}
.p-icon svg { width: 40px; height: 40px; }
.p-icon.water    { background: linear-gradient(135deg, #4fc3f7, #0288d1); }
.p-icon.shield   { background: linear-gradient(135deg, #42a5f5, #1565c0); }
.p-icon.combo    { background: linear-gradient(135deg, #26c6da, #00838f); }
.p-icon.dental   { background: linear-gradient(135deg, #90caf9, #1976d2); }
.p-icon.iot      { background: linear-gradient(135deg, #80deea, #0097a7); }
.p-icon.monitor  { background: linear-gradient(135deg, #4db6ac, #00695c); }
.product.p-card h3 { font-size: 20px; font-weight: 600; letter-spacing: -0.01em; margin: 0 24px 10px; }
.product.p-card p  { font-size: 14.5px; color: var(--ink-2); line-height: 1.6; padding: 0 24px 16px; }
.product.p-card .link { margin: 0 24px 28px; display: inline-block; }

/* ===== GLOBAL POLISH (v-final) ===== */
html { scroll-padding-top: 64px; }

/* 让页面底部留一点呼吸 */
body { padding-bottom: 0; }

/* 通用卡片/区块统一圆角与阴影 token */
.feature, .voice, .news-card, .c-form, .value-card, .product.p-card {
  border-radius: var(--radius);
}

/* 导航滚动时更通透 */
.nav.scrolled { box-shadow: 0 1px 0 rgba(0,0,0,.05); }

/* 标题字距更 Apple */
.h-xl, .h-lg { text-wrap: balance; }

/* 按钮统一聚焦态（可访问性） */
.btn:focus-visible, .filter-btn:focus-visible, .faq-q:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

/* 区块标题进入时轻微上浮 */
[data-animate].visible { will-change: auto; }

/* CTA 深色区加一点蓝色氛围光（非纯黑，更高级） */
.cta {
  background:
    radial-gradient(120% 80% at 50% 0%, rgba(0,113,227,.18) 0%, rgba(0,0,0,0) 60%),
    #000;
}

/* 页脚品牌小标题 */
.f-col h4 { letter-spacing: .02em; }

/* 统计数字更紧凑，避免 100,000 溢出 */
.stat-num { font-size: clamp(34px, 4.4vw, 56px); }
@media (min-width: 881px) {
  .stat-num { font-size: clamp(40px, 4.6vw, 60px); }
}

/* 新闻卡片 meta 行对齐 */
.news-meta { display: flex; align-items: center; }

/* 产品筛选按钮 active 用蓝，呼应品牌 */
.filter-btn.active { background: var(--blue); border-color: var(--blue); color: #fff; }
.filter-btn:hover:not(.active) { border-color: var(--ink); }

/* 移动端首屏字号再收一档 */
@media (max-width: 560px) {
  .hero h1 { font-size: 34px; line-height: 1.1; }
  .hero p { font-size: 16px; }
}

/* ===== NEWS COVER ICON CARDS (v-final) ===== */
.news-cover {
  height: 200px;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.news-cover svg {
  width: 56px; height: 56px;
  opacity: .92;
  transition: transform .4s cubic-bezier(.2,.6,.2,1);
}
.news-card:hover .news-cover svg { transform: scale(1.12); }
.news-cover::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(120% 80% at 30% 10%, rgba(255,255,255,.18) 0%, rgba(0,0,0,0) 60%);
}
.news-cover--expo     { background: linear-gradient(135deg, #0ea5e9, #0369a1); }
.news-cover--factory  { background: linear-gradient(135deg, #0891b2, #164e63); }
.news-cover--cert     { background: linear-gradient(135deg, #f59e0b, #b45309); }
.news-cover--project  { background: linear-gradient(135deg, #22c55e, #15803d); }
.news-cover--partner  { background: linear-gradient(135deg, #8b5cf6, #4c1d95); }
.news-cover--product  { background: linear-gradient(135deg, #06b6d4, #1e40af); }
.news-card .news-cover { border-radius: 12px 12px 0 0; }
.news-card { background: #fff; }
.news-card img { display: none; } /* 照片被 icon 卡片替代 */