/* =========================================================
   HONGHUI — Custom Men's Tops Manufacturer
   Global stylesheet — LIGHT / EDITORIAL EDITION
   Aligned to the vanrd.com visual language:
   white base · black type · orange accent · mixed-case headings
   ---------------------------------------------------------
   1. Tokens
   2. Reset & base
   3. Typography & utilities
   4. Buttons
   5. Topbar
   6. Header / navigation
   7. Hero
   8. Marquee & stats
   9. Section shell
   10. Product grid
   11. Split features
   12. Tabs (styles / techniques)
   13. Capability & factory
   14. Certifications
   15. Testimonials
   16. Timeline
   17. Insights
   18. FAQ
   19. CTA + enquiry form
   20. Footer
   21. Floating UI
   22. Responsive
   ========================================================= */

/* ---------- 1. Tokens ---------- */
:root {
  --white: #ffffff;
  --paper: #f7f7f8;
  --paper-2: #eeeff1;
  --paper-3: #e4e5e8;
  --ink: #000000;
  --ink-2: #141414;
  --ink-3: #232323;
  --text: #111111;
  --text-soft: #5c5c5c;
  --text-mute: #8c8c8c;
  --line: #e6e6e6;
  --line-strong: #cfcfcf;
  --accent: #ff9501;
  --accent-dark: #e88500;
  --accent-soft: rgba(255, 149, 1, 0.1);
  --ok: #1f8a5b;
  --container: 1280px;
  --gutter: 26px;
  --radius: 6px;
  --radius-lg: 10px;
  --radius-pill: 100px;
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.06);
  --shadow: 0 18px 46px -22px rgba(0, 0, 0, 0.28);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --font: "Helvetica Neue", Helvetica, Roboto, Arial, "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

/* ---------- 2. Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--white);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  font-weight: 400;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }
input, textarea, select { font: inherit; color: inherit; }

::selection { background: var(--accent); color: #fff; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* ---------- 3. Typography & utilities ---------- */
/* headings are sentence-case, NOT uppercase — matches the reference site */
h1, h2, h3, h4 {
  margin: 0;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.16;
  text-transform: none;
  text-wrap: balance;
}

/* reference site renders its H1 at ~51px and its section H2 at ~30px,
   which keeps most headings to one or two full lines */
.h1 { font-size: clamp(1.95rem, 3.6vw, 3.2rem); line-height: 1.12; letter-spacing: -0.028em; }
.h2 { font-size: clamp(1.45rem, 2.3vw, 2.15rem); letter-spacing: -0.024em; }
.h3 { font-size: clamp(1.05rem, 1.35vw, 1.28rem); letter-spacing: -0.015em; line-height: 1.28; }
.h4 { font-size: 1rem; line-height: 1.3; letter-spacing: -0.01em; }

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

.lead {
  font-size: clamp(0.95rem, 1.05vw, 1.06rem);
  line-height: 1.72;
  color: var(--text-soft);
  max-width: 62ch;
}

/* small centred label above a heading — reference-site style */
.eyebrow {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--text-mute);
  margin: 0 0 14px;
  text-transform: none;
}
.eyebrow--accent { color: var(--accent); }
.eyebrow--light { color: rgba(255, 255, 255, 0.75); }

.container {
  width: min(100% - (var(--gutter) * 2), var(--container));
  margin-inline: auto;
}

.text-accent { color: var(--accent); }
.muted { color: var(--text-mute); }
.center { text-align: center; }
.center .lead { margin-inline: auto; }

.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

/* reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  transition-delay: var(--d, 0ms);
}
.reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

/* ---------- 4. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 14px 28px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  background: var(--ink);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
  transition: background 0.28s var(--ease), color 0.28s var(--ease),
    border-color 0.28s var(--ease), transform 0.28s var(--ease),
    box-shadow 0.28s var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.btn svg { width: 15px; height: 15px; transition: transform 0.28s var(--ease); }
.btn:hover svg { transform: translateX(2px); }

.btn--accent { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn--accent:hover { background: var(--accent-dark); border-color: var(--accent-dark); }

.btn--ghost { background: transparent; border-color: var(--line-strong); color: var(--text); }
.btn--ghost:hover { background: var(--ink); border-color: var(--ink); color: #fff; }

.btn--light { background: #fff; border-color: #fff; color: var(--ink); }
.btn--light:hover { background: var(--accent); border-color: var(--accent); color: #fff; }

.btn--outline-light { background: transparent; border-color: rgba(255,255,255,.65); color: #fff; }
.btn--outline-light:hover { background: #fff; border-color: #fff; color: var(--ink); }

.btn--pill { border-radius: var(--radius-pill); }
.btn--block { width: 100%; }
.btn--sm { padding: 11px 20px; font-size: 0.84rem; }

.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.center .btn-row { justify-content: center; }

.textlink {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  transition: color 0.28s var(--ease), gap 0.28s var(--ease);
}
.textlink:hover { color: var(--accent); gap: 11px; }
.textlink svg { width: 14px; height: 14px; }
.textlink--light { color: rgba(255,255,255,.85); }
.textlink--light:hover { color: #fff; }

/* ---------- 5. Topbar ---------- */
.topbar {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.78rem;
}
.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 36px;
}
.topbar a { transition: color 0.25s var(--ease); }
.topbar a:hover { color: #fff; }
.topbar__right { display: flex; align-items: center; gap: 18px; }
.topbar__right svg { width: 14px; height: 14px; vertical-align: -2px; }

/* ---------- 6. Header / navigation ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.35s var(--ease);
}
.header.is-stuck { box-shadow: 0 1px 18px rgba(0, 0, 0, 0.07); }

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  min-height: 70px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 1.32rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--ink);
  flex: none;
}
.logo__dot { width: 6px; height: 6px; background: var(--accent); border-radius: 50%; }
.logo__sub {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-mute);
  align-self: flex-end;
  padding-bottom: 3px;
}

.nav { display: flex; align-items: center; gap: 2px; }
.nav__item { position: relative; }

.nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 9px 13px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  border-radius: var(--radius);
  transition: color 0.25s var(--ease), background 0.25s var(--ease);
}
.nav__link:hover { color: var(--accent); }
.nav__caret { width: 12px; height: 12px; opacity: 0.5; }

.dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 250px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.26s var(--ease), transform 0.26s var(--ease), visibility 0.26s;
}
.nav__item:hover .dropdown,
.nav__item:focus-within .dropdown { opacity: 1; visibility: visible; transform: none; }

.dropdown a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  padding: 9px 12px;
  border-radius: var(--radius);
  font-size: 0.88rem;
  transition: background 0.22s var(--ease), color 0.22s var(--ease);
}
.dropdown a span { font-size: 0.74rem; color: var(--text-mute); }
.dropdown a:hover { background: var(--paper); color: var(--accent); }

.header__actions { display: flex; align-items: center; gap: 12px; flex: none; }

.burger {
  display: none;
  width: 42px; height: 42px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: transparent;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}
.burger span {
  display: block;
  width: 17px; height: 1.6px;
  background: var(--ink);
  transition: transform 0.3s var(--ease), opacity 0.25s var(--ease);
}
body.menu-open .burger span:nth-child(1) { transform: translateY(6.6px) rotate(45deg); }
body.menu-open .burger span:nth-child(2) { opacity: 0; }
body.menu-open .burger span:nth-child(3) { transform: translateY(-6.6px) rotate(-45deg); }

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 85;
  background: #fff;
  padding: 96px 26px 40px;
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: opacity 0.34s var(--ease), transform 0.34s var(--ease), visibility 0.34s;
}
body.menu-open .mobile-menu { opacity: 1; visibility: visible; transform: none; }

.mobile-menu a {
  display: block;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
  font-size: 1.18rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.mobile-menu a:hover { color: var(--accent); }
.mobile-menu__foot { margin-top: 28px; }

/* ---------- 7. Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(880px 460px at 90% -12%, var(--accent-soft) 0%, rgba(255, 149, 1, 0) 62%),
    linear-gradient(180deg, var(--paper) 0%, var(--white) 80%);
}

.hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(30px, 5vw, 74px);
  align-items: center;
  padding-block: clamp(58px, 9vh, 110px);
}

.hero__content .eyebrow { margin-bottom: 18px; }

.hero .h1 {
  max-width: 17ch;
  color: var(--ink);
  letter-spacing: -0.032em;
}

.hero__lead {
  margin: 22px 0 0;
  max-width: 52ch;
  font-size: clamp(0.97rem, 1.1vw, 1.09rem);
  line-height: 1.72;
  color: var(--text-soft);
}
.hero__lead strong { color: var(--ink); font-weight: 600; }

.hero .btn-row { margin-top: 32px; }

/* trust chips under the CTA row */
.hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
  margin-top: 36px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}
.hero__chip b {
  display: block;
  font-size: 1.06rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.hero__chip span { font-size: 0.78rem; color: var(--text-mute); }

/* visual collage (real model photography) */
.hero__visual { position: relative; }
.hero__visual-main {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: var(--paper-2);
  box-shadow: var(--shadow);
}
.hero__visual-main img { width: 100%; height: 100%; object-fit: cover; display: block; }

.hero__visual-side {
  position: absolute;
  left: -54px;
  bottom: 30px;
  width: 168px;
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 5px solid #fff;
  background: var(--paper-2);
  box-shadow: var(--shadow);
}
.hero__visual-side img { width: 100%; height: 100%; object-fit: cover; display: block; }

.hero__visual-badge {
  position: absolute;
  top: 24px;
  right: -12px;
  padding: 12px 18px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  text-align: center;
}
.hero__visual-badge b {
  display: block;
  font-size: 1.28rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--accent);
}
.hero__visual-badge span { font-size: 0.72rem; color: var(--text-mute); letter-spacing: 0.02em; }

/* slim service strip under the hero — mirrors the reference layout */
.hero-strip { border-bottom: 1px solid var(--line); background: #fff; }
.hero-strip__inner { display: grid; grid-template-columns: repeat(4, 1fr); }
.hero-strip__item {
  padding: 22px 20px;
  border-right: 1px solid var(--line);
  text-align: center;
}
.hero-strip__item:last-child { border-right: 0; }
.hero-strip__item b {
  display: block;
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: -0.015em;
  margin-bottom: 3px;
}
.hero-strip__item span { font-size: 0.8rem; color: var(--text-mute); }

/* ---------- 8. Marquee & stats ---------- */
.marquee {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  padding: 15px 0;
}
.marquee__track { display: flex; width: max-content; animation: slide 40s linear infinite; }
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__group { display: flex; align-items: center; gap: 40px; padding-right: 40px; }
.marquee__group span {
  display: inline-flex;
  align-items: center;
  gap: 40px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-mute);
  white-space: nowrap;
}
.marquee__group span::after {
  content: "";
  width: 5px; height: 5px;
  background: var(--accent);
  border-radius: 50%;
}
@keyframes slide { to { transform: translateX(-50%); } }

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.stat {
  padding: 38px 26px;
  border-right: 1px solid var(--line);
  text-align: center;
}
.stat:last-child { border-right: 0; }
.stat b {
  display: block;
  font-size: clamp(1.85rem, 3.2vw, 2.6rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--ink);
}
.stat span {
  display: block;
  margin-top: 9px;
  font-size: 0.82rem;
  color: var(--text-mute);
}

/* ---------- 9. Section shell ---------- */
.section { padding: clamp(64px, 7.4vw, 112px) 0; }
.section--tight { padding: clamp(44px, 5vw, 68px) 0; }
.section--paper { background: var(--paper); }
.section--paper2 { background: var(--paper-2); }

.section__head {
  max-width: 780px;
  margin: 0 auto clamp(38px, 4.6vw, 62px);
  text-align: center;
}
.section__head .lead { margin-inline: auto; }
.section__head--left {
  max-width: none;
  margin-inline: 0;
  text-align: left;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(22px, 4vw, 60px);
  align-items: end;
}
.section__head--left .lead { margin-inline: 0; }

.tag-strip { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.center .tag-strip { justify-content: center; }
.tag {
  padding: 6px 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: #fff;
  font-size: 0.78rem;
  color: var(--text-soft);
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}
.tag:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- 10. Product grid ---------- */
.products {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 26px 20px;
}

.card { display: flex; flex-direction: column; }

.card__media {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--paper-2);
}
.card__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.75s var(--ease);
}
.card:hover .card__media img { transform: scale(1.045); }

.card__badge {
  position: absolute;
  top: 10px; left: 10px;
  padding: 5px 10px;
  background: rgba(255, 255, 255, 0.94);
  color: var(--ink);
  font-size: 0.68rem;
  font-weight: 700;
  border-radius: var(--radius-pill);
  backdrop-filter: blur(4px);
}
.card__badge--accent { background: var(--accent); color: #fff; }

.card__body { padding: 15px 2px 0; }
.card h3 {
  font-size: 0.98rem;
  font-weight: 800;
  letter-spacing: -0.015em;
  margin-bottom: 6px;
}
.card__body p { margin: 0; font-size: 0.83rem; line-height: 1.55; color: var(--text-soft); }

/* feature card spanning the grid */
.card--feature {
  grid-column: span 5;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
  background: var(--paper);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: 14px;
}
.card--feature .card__media { aspect-ratio: 16 / 10; border-radius: 0; }
.card--feature .card__body { padding: 40px 46px 40px 0; }

/* ---------- 11. Split features ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(28px, 4.6vw, 72px);
  align-items: center;
}
.split--reverse .split__media { order: 2; }
.split__media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--paper-2);
}
.split__media img { width: 100%; height: 100%; object-fit: cover; }
.split__media--tall { aspect-ratio: 3 / 4; }
.split__media-tag {
  position: absolute;
  bottom: 14px; left: 14px;
  padding: 7px 13px;
  background: rgba(255, 255, 255, 0.94);
  color: var(--ink);
  font-size: 0.76rem;
  font-weight: 700;
  border-radius: var(--radius-pill);
  backdrop-filter: blur(4px);
}

.checklist { list-style: none; margin: 24px 0 0; padding: 0; }
.checklist li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 13px;
  font-size: 0.93rem;
  color: var(--text-soft);
}
.checklist li strong { color: var(--text); font-weight: 700; }
.checklist li::before {
  content: "";
  position: absolute;
  left: 2px; top: 7px;
  width: 13px; height: 7px;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}

.mini-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  margin-top: 30px;
}
.mini-card { padding: 22px 22px 0 0; }
.mini-card b {
  display: block;
  font-size: 0.96rem;
  font-weight: 800;
  letter-spacing: -0.015em;
  margin-bottom: 7px;
}
.mini-card p { font-size: 0.84rem; line-height: 1.6; color: var(--text-soft); margin: 0; }

/* ---------- 12. Tabs ---------- */
.tabs__nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: clamp(30px, 4vw, 48px);
}
.tabs__btn {
  padding: 11px 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-soft);
  transition: all 0.26s var(--ease);
}
.tabs__btn:hover { border-color: var(--line-strong); color: var(--text); }
.tabs__btn.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 700;
}

.tabs__panel { display: none; }
.tabs__panel.is-active { display: block; animation: fadeUp 0.5s var(--ease); }
@keyframes fadeUp { from { opacity: 0; transform: translateY(12px); } }

/* ---------- In-stock styles gallery (real model photography) ---------- */
.look-intro {
  margin: -8px auto 28px;
  max-width: 64ch;
  text-align: center;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--text-soft);
}
.look-intro strong { color: var(--ink); font-weight: 700; }

.look-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px 22px;
}

.look { margin: 0; }
.look__media {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--paper-2);
}
.look__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.75s var(--ease);
}
.look:hover .look__media img { transform: scale(1.045); }

.look figcaption { padding: 13px 2px 0; }
.look figcaption b {
  display: block;
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: -0.015em;
  color: var(--ink);
}
.look figcaption span {
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--text-soft);
}


.style-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(26px, 4.6vw, 64px);
  align-items: center;
}
.style-panel__media {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--paper-2);
}
.style-panel__media img { width: 100%; height: 100%; object-fit: cover; }

/* technique cards */
.tech-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.tech {
  padding: 26px 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease),
    box-shadow 0.35s var(--ease);
}
.tech:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 149, 1, 0.55);
  box-shadow: var(--shadow-sm);
}
.tech__icon {
  width: 40px; height: 40px;
  display: grid;
  place-items: center;
  border-radius: var(--radius);
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: 16px;
}
.tech__icon svg { width: 19px; height: 19px; }
.tech h3 { font-size: 1rem; margin-bottom: 8px; }
.tech p { font-size: 0.84rem; line-height: 1.58; color: var(--text-soft); margin: 0; }

/* ---------- 13. Capability & factory ---------- */
.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  margin-top: 40px;
}
.capability { padding: 28px 24px 0 0; }
.capability b {
  display: block;
  font-size: clamp(1.7rem, 2.7vw, 2.2rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  margin-bottom: 7px;
}
.capability b i { font-style: normal; font-size: 0.9rem; font-weight: 600; color: var(--accent); margin-left: 3px; }
.capability span { display: block; font-size: 0.82rem; color: var(--text-mute); margin-bottom: 9px; }
.capability p { font-size: 0.84rem; line-height: 1.58; color: var(--text-soft); margin: 0; }

.gallery {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  grid-template-rows: repeat(2, 1fr);
  gap: 14px;
  height: 100%;
}
.gallery__item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--paper-2);
  min-height: 180px;
}
.gallery__item:first-child { grid-row: span 2; }
.gallery__item img { width: 100%; height: 100%; object-fit: cover; }

/* ---------- 14. Certifications ---------- */
.certs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.cert {
  padding: 24px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
  transition: transform 0.32s var(--ease), border-color 0.32s var(--ease),
    box-shadow 0.32s var(--ease);
}
.cert:hover { transform: translateY(-3px); border-color: var(--line-strong); box-shadow: var(--shadow-sm); }
.cert__mark {
  width: 42px; height: 42px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  display: grid;
  place-items: center;
  font-size: 0.7rem;
  font-weight: 800;
  margin-bottom: 14px;
}
.cert b { display: block; font-size: 0.95rem; font-weight: 800; margin-bottom: 5px; letter-spacing: -0.015em; }
.cert p { margin: 0; font-size: 0.81rem; line-height: 1.55; color: var(--text-soft); }

/* ---------- 15. Testimonials ---------- */
.quotes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.quote {
  display: flex;
  flex-direction: column;
  padding: 26px 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}
.quote__stars { color: var(--accent); letter-spacing: 0.16em; font-size: 0.78rem; margin-bottom: 14px; }
.quote__text { font-size: 0.92rem; line-height: 1.68; flex: 1; }
.quote__by {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.quote__avatar {
  width: 38px; height: 38px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--ink);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  flex: none;
}
.quote__by b { display: block; font-size: 0.87rem; font-weight: 700; }
.quote__by span { display: block; font-size: 0.76rem; color: var(--text-mute); }

/* ---------- 16. Timeline ---------- */
.timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin-top: 40px;
}
.step { padding: 28px 22px 32px; border-right: 1px solid var(--line); }
.step:last-child { border-right: 0; }
.step__n {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 14px;
}
.step b { display: block; font-size: 1rem; font-weight: 800; letter-spacing: -0.015em; margin-bottom: 8px; }
.step p { font-size: 0.83rem; line-height: 1.58; color: var(--text-soft); margin: 0; }

/* ---------- 17. Insights ---------- */
.posts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.post {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.post:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.post__media { aspect-ratio: 16 / 10; overflow: hidden; background: var(--paper-2); }
.post__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.75s var(--ease); }
.post:hover .post__media img { transform: scale(1.04); }
.post__body { padding: 22px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.post__meta { font-size: 0.77rem; color: var(--text-mute); margin-bottom: 9px; }
.post h3 { font-size: 1.08rem; margin-bottom: 9px; }
.post p { font-size: 0.87rem; line-height: 1.6; color: var(--text-soft); margin: 0 0 18px; }
.post .textlink { margin-top: auto; align-self: flex-start; }

/* ---------- 18. FAQ ---------- */
.faq {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
  gap: clamp(26px, 4.6vw, 68px);
  align-items: start;
}
.accordion { border-top: 1px solid var(--line); }
.acc__item { border-bottom: 1px solid var(--line); }
.acc__q {
  width: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 0;
  background: none;
  border: 0;
  text-align: left;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  transition: color 0.25s var(--ease);
}
.acc__q:hover { color: var(--accent); }
.acc__sign { position: relative; width: 15px; height: 15px; flex: none; margin-top: 5px; }
.acc__sign::before,
.acc__sign::after {
  content: "";
  position: absolute;
  background: currentColor;
  transition: transform 0.34s var(--ease), opacity 0.26s var(--ease);
}
.acc__sign::before { left: 0; top: 7px; width: 15px; height: 1.6px; }
.acc__sign::after { left: 6.7px; top: 0; width: 1.6px; height: 15px; }
.acc__item.is-open .acc__sign::after { transform: rotate(90deg); opacity: 0; }
.acc__a { overflow: hidden; height: 0; transition: height 0.4s var(--ease); }
.acc__a p { margin: 0; padding: 0 36px 22px 0; font-size: 0.91rem; line-height: 1.7; color: var(--text-soft); }

/* ---------- 19. CTA + enquiry form ---------- */
.cta { background: var(--ink); color: #fff; position: relative; overflow: hidden; }
.cta__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: clamp(30px, 4.6vw, 72px);
  align-items: start;
}
.cta .lead { color: rgba(255, 255, 255, 0.76); }
.cta .eyebrow { color: rgba(255, 255, 255, 0.6); }
.cta h2 { color: #fff; }

.cta__contact { margin-top: 30px; display: grid; gap: 12px; }
.cta__contact a,
.cta__contact p {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.76);
  transition: color 0.25s var(--ease);
}
.cta__contact a:hover { color: var(--accent); }
.cta__contact svg { width: 16px; height: 16px; color: var(--accent); flex: none; }

.form { background: #fff; border-radius: var(--radius-lg); padding: clamp(24px, 3vw, 36px); }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { display: flex; flex-direction: column; gap: 7px; margin-bottom: 14px; }
.field label { font-size: 0.82rem; font-weight: 600; color: var(--text-soft); }
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  background: #fff;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  font-size: 0.93rem;
  color: var(--text);
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.field textarea { resize: vertical; min-height: 100px; }
.field input::placeholder,
.field textarea::placeholder { color: #b0b0b0; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.field.has-error input,
.field.has-error select,
.field.has-error textarea { border-color: #e05252; }
.field__err { font-size: 0.78rem; color: #d64545; display: none; }
.field.has-error .field__err { display: block; }

.form__note { margin-top: 12px; font-size: 0.79rem; line-height: 1.6; color: var(--text-mute); }

.form__ok {
  display: none;
  padding: 32px 26px;
  text-align: center;
  border: 1px solid #bfe5cf;
  border-radius: var(--radius-lg);
  background: #f1faf4;
}
.form__ok.is-on { display: block; animation: fadeUp 0.45s var(--ease); }
.form__ok svg { width: 38px; height: 38px; color: var(--ok); margin: 0 auto 14px; }
.form__ok h3 { font-size: 1.2rem; margin-bottom: 8px; }
.form__ok p { font-size: 0.9rem; color: var(--text-soft); }

/* ---------- 20. Footer ---------- */
.footer { background: var(--paper); border-top: 1px solid var(--line); padding-top: clamp(48px, 6vw, 78px); }
.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: clamp(24px, 3.6vw, 52px);
  padding-bottom: 48px;
}
.footer__brand .logo { margin-bottom: 16px; }
.footer__brand p { font-size: 0.87rem; line-height: 1.68; color: var(--text-soft); max-width: 34ch; }
.footer h4 { font-size: 0.86rem; font-weight: 800; letter-spacing: -0.01em; margin: 0 0 15px; }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.footer ul a,
.footer ul li span { font-size: 0.86rem; color: var(--text-soft); transition: color 0.25s var(--ease); }
.footer ul a:hover { color: var(--accent); }

.newsletter { display: flex; gap: 8px; margin-top: 14px; }
.newsletter input {
  flex: 1; min-width: 0;
  padding: 11px 13px;
  background: #fff;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  font-size: 0.86rem;
}
.newsletter input:focus { outline: none; border-color: var(--accent); }
.newsletter button {
  padding: 11px 18px;
  background: var(--ink);
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  color: #fff;
  font-size: 0.84rem;
  font-weight: 600;
  transition: background 0.25s var(--ease);
}
.newsletter button:hover { background: var(--accent); border-color: var(--accent); }

.footer__bottom {
  border-top: 1px solid var(--line);
  padding: 20px 0 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  align-items: center;
  justify-content: space-between;
  font-size: 0.81rem;
  color: var(--text-mute);
}
.footer__bottom nav { display: flex; flex-wrap: wrap; gap: 20px; }
.footer__bottom a:hover { color: var(--accent); }

/* ---------- 21. Floating UI ---------- */
.progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0;
  background: var(--accent);
  z-index: 120;
  transition: width 0.1s linear;
}

.totop {
  position: fixed;
  right: 20px; bottom: 20px;
  z-index: 70;
  width: 44px; height: 44px;
  display: grid;
  place-items: center;
  background: var(--ink);
  color: #fff;
  border: 0;
  border-radius: 50%;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s,
    background 0.25s var(--ease);
}
.totop.is-on { opacity: 1; visibility: visible; transform: none; }
.totop:hover { background: var(--accent); }
.totop svg { width: 16px; height: 16px; }

.wa-float {
  position: fixed;
  right: 20px; bottom: 76px;
  z-index: 70;
  width: 44px; height: 44px;
  display: grid;
  place-items: center;
  background: #25d366;
  color: #fff;
  border-radius: 50%;
  box-shadow: var(--shadow);
  transition: transform 0.3s var(--ease);
}
.wa-float:hover { transform: scale(1.07); }
.wa-float svg { width: 21px; height: 21px; }

/* ---------- 22. Responsive ---------- */
@media (max-width: 1180px) {
  .products { grid-template-columns: repeat(4, 1fr); }
  .card--feature { grid-column: span 4; }
  .tech-grid, .certs, .capability-grid { grid-template-columns: repeat(2, 1fr); }
  .capability { border-bottom: 1px solid var(--line); padding-bottom: 24px; }
  .quotes { grid-template-columns: repeat(2, 1fr); }
  .timeline { grid-template-columns: repeat(3, 1fr); }
  .step { border-bottom: 1px solid var(--line); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 980px) {
  .nav { display: none; }
  .burger { display: flex; }
  .hero__grid { grid-template-columns: 1fr; gap: 44px; }
  .hero__content { max-width: 60ch; }
  .hero__visual { max-width: 470px; margin-inline: auto; width: 100%; }
  .hero__visual-side { left: -16px; }
  .hero__visual-badge { right: -8px; }
  .look-grid { grid-template-columns: repeat(2, 1fr); }
  .products { grid-template-columns: repeat(3, 1fr); }
  .card--feature { grid-column: span 3; }
  .split, .style-panel, .faq, .cta__grid,
  .section__head--left { grid-template-columns: 1fr; }
  .split--reverse .split__media { order: 0; }
  .hero-strip__inner { grid-template-columns: repeat(2, 1fr); }
  .hero-strip__item { border-bottom: 1px solid var(--line); }
  .hero-strip__item:nth-child(2n) { border-right: 0; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat { border-bottom: 1px solid var(--line); }
  .stat:nth-child(2n) { border-right: 0; }
  .posts { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: 1fr 1fr; }
  .split__media--tall { aspect-ratio: 4 / 3; }
}

@media (max-width: 660px) {
  :root { --gutter: 18px; }
  .products { grid-template-columns: repeat(2, 1fr); gap: 20px 14px; }
  .card--feature { grid-column: span 2; grid-template-columns: 1fr; }
  .card--feature .card__body { padding: 24px; }
  .tech-grid, .certs, .quotes, .capability-grid,
  .timeline, .mini-cards { grid-template-columns: 1fr; }
  .capability, .step, .mini-card { border-right: 0; }
  .form__row { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: 1fr; grid-template-rows: none; }
  .gallery__item:first-child { grid-row: span 1; }
  .topbar__left { display: none; }
  .btn { padding: 13px 22px; font-size: 0.86rem; }
  .hero__chips { gap: 10px 22px; }
  .hero__visual-side { width: 118px; left: -8px; bottom: 18px; border-width: 4px; }
  .hero__visual-badge { right: -4px; top: 14px; padding: 9px 13px; }
  .hero__visual-badge b { font-size: 1.06rem; }
  .look-grid { grid-template-columns: repeat(2, 1fr); gap: 18px 12px; }
}

/* =========================================================
   13. 产品款号目录（分组 + 分页懒加载）
   ---------------------------------------------------------
   与既有 .look-grid / .look 视觉完全兼容（沿用同一套卡片样式），
   这里只补充：加载更多、骨架屏、灯箱、状态提示。
   ========================================================= */

.look-grid { position: relative; }

/* 骨架屏（首屏占位，避免布局跳动） */
.look-skeleton-wrap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px 22px;
  grid-column: 1 / -1;
}
.look-skeleton {
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-lg);
  background: linear-gradient(100deg, var(--paper-2) 30%, #fff 50%, var(--paper-2) 70%);
  background-size: 300% 100%;
  animation: lookShimmer 1.5s linear infinite;
}
@keyframes lookShimmer {
  from { background-position: 150% 0; }
  to   { background-position: -50% 0; }
}

/* 滚动哨兵（进入视口即自动续拉下一页） */
.look-sentinel { height: 1px; }

/* 「加载更多」按钮区 */
.look-more {
  display: flex;
  justify-content: center;
  margin-top: clamp(28px, 4vw, 46px);
}
.look-more[hidden] { display: none; }

/* 状态提示（Showing 48 of 3,000 styles） */
.look-status {
  margin: 18px 0 0;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-soft);
  min-height: 1.2em;
}

/* 卡片可点击（打开大图） */
.look__media[data-full-webp] { cursor: zoom-in; }
.look__media[data-full-webp]:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}
.look__media picture { display: block; width: 100%; height: 100%; }
.look__media img { display: block; }

/* ---------- 灯箱 ---------- */
.catlb {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(12, 12, 14, 0.88);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.catlb.is-open { display: flex; animation: catlbIn 0.22s var(--ease); }
@keyframes catlbIn { from { opacity: 0; } }

.catlb__stage {
  position: relative;
  max-width: min(92vw, 900px);
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.catlb__stage img {
  max-width: 100%;
  max-height: 82vh;
  width: auto;
  height: auto;
  border-radius: 14px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
  background: #fff;
}
.catlb__num {
  margin-top: 14px;
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: #fff;
}
.catlb__close {
  position: absolute;
  top: -14px;
  right: -14px;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 50%;
  background: #fff;
  color: #111;
  font-size: 1.3rem;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.35);
}
.catlb__close:hover { background: var(--accent); color: #fff; }

@media (max-width: 780px) {
  .look-skeleton-wrap { grid-template-columns: repeat(2, 1fr); gap: 18px 12px; }
  .catlb__close { top: 8px; right: 8px; }
  .catlb__stage { max-width: 94vw; }
  .catlb__stage img { max-height: 76vh; border-radius: 10px; }
}