/* =========================================================
   BINUO 宾诺电器 — main stylesheet
   1. Tokens & base
   2. Layout utilities
   3. Buttons & chips
   4. Topbar & header
   5. Hero
   6. Sections & cards
   7. Products
   8. Factory / values / buyers / videos
   9. Marquee & FAQ
   10. Inquiry form
   11. Inner pages
   12. Footer & floating actions
   13. Motion, RTL, responsive
   ========================================================= */

/* 1. Tokens & base --------------------------------------- */
:root {
  --navy: #102a43;
  --navy-800: #14324f;
  --navy-600: #1f4468;
  --red: #e6532f;
  --red-600: #cf4525;
  --sand: #f7f3ee;
  --sand-200: #efe8df;
  --white: #fff;
  --ink: #1b2733;
  --muted: #5f6f7e;
  --muted-2: #8a97a3;
  --line: #e6e9ed;
  --green: #25d366;

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;

  --shadow-sm: 0 2px 10px rgba(16, 42, 67, .06);
  --shadow: 0 12px 34px rgba(16, 42, 67, .10);
  --shadow-lg: 0 26px 60px rgba(16, 42, 67, .16);

  --container: 1240px;
  --gutter: 24px;
  --section-y: clamp(56px, 7vw, 104px);

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, "Noto Sans", "Noto Sans Arabic", "Noto Sans Thai", "PingFang SC",
    "Microsoft YaHei", sans-serif;
}

*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, video, svg { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color .2s ease, opacity .2s ease; }
h1, h2, h3, h4 { margin: 0 0 .5em; line-height: 1.18; color: var(--navy); font-weight: 650; letter-spacing: -.015em; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font: inherit; }

.screen-reader-text {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0);
  white-space: nowrap; border: 0;
}
.skip-link:focus {
  position: fixed !important; inset-inline-start: 16px; top: 16px;
  width: auto; height: auto; clip: auto;
  padding: 12px 18px; background: var(--navy); color: #fff; z-index: 9999; border-radius: 6px;
}

/* 2. Layout utilities ------------------------------------ */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.container--narrow { max-width: 860px; }
.section { padding-block: var(--section-y); }
.section--sand { background: var(--sand); }
.site-main { display: block; }

.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 14px;
}

.section-head { max-width: 720px; margin: 0 auto 48px; text-align: center; }
.section-head--left { margin-inline: 0; text-align: start; }
.section-title { font-size: clamp(26px, 3.1vw, 40px); margin-bottom: 14px; text-wrap: balance; }
/* 中文标题优先在标点处断行，避免"小家电"这类词被拆开 */
html[data-lang="zh"] :is(.hero__title, .section-title, .page-title, .p-card__title, .value-card__title) { word-break: keep-all; overflow-wrap: anywhere; }
.section-lead { color: var(--muted); font-size: 16.5px; margin: 0; }

.section-bar { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 44px; flex-wrap: wrap; }
.section-bar .section-head { margin-bottom: 0; }

.empty-note { padding: 40px 0; color: var(--muted); text-align: center; }

.breadcrumb { display: flex; gap: 8px; align-items: center; font-size: 13px; color: var(--muted); margin-bottom: 18px; flex-wrap: wrap; }
.breadcrumb a:hover { color: var(--red); }
.breadcrumb--light, .breadcrumb--light a { color: rgba(255, 255, 255, .78); }

/* 3. Buttons & chips ------------------------------------- */
.btn {
  --btn-bg: var(--navy);
  --btn-fg: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  transition: transform .18s ease, background .2s ease, box-shadow .2s ease, color .2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn--primary { --btn-bg: var(--red); box-shadow: 0 8px 22px rgba(230, 83, 47, .24); }
.btn--primary:hover { --btn-bg: var(--red-600); }
.btn--ghost { --btn-bg: transparent; --btn-fg: var(--navy); border-color: var(--line); }
.btn--ghost:hover { border-color: var(--navy); }
.btn--light { --btn-bg: rgba(255, 255, 255, .14); --btn-fg: #fff; border-color: rgba(255, 255, 255, .38); backdrop-filter: blur(6px); }
.btn--light:hover { --btn-bg: rgba(255, 255, 255, .24); }
.btn--sm { padding: 10px 18px; font-size: 13.5px; }
.btn--block { width: 100%; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 14px;
  color: var(--navy);
  background: #fff;
  transition: all .2s ease;
}
.chip:hover { border-color: var(--navy); }
.chip.is-active { background: var(--navy); color: #fff; border-color: var(--navy); }
.chip__count { font-size: 12px; color: var(--muted-2); }

.tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--sand);
  color: var(--navy);
  font-size: 12px;
  letter-spacing: .01em;
}

.filter-bar { display: flex; gap: 10px; flex-wrap: wrap; padding: 0 0 36px; }
.filter-bar--tight { padding-top: 18px; padding-bottom: 0; }

/* 4. Topbar & header ------------------------------------- */
.topbar { background: var(--navy); color: rgba(255, 255, 255, .82); font-size: 12.5px; }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; min-height: 38px; gap: 16px; }
.topbar-note { margin: 0; letter-spacing: .01em; }
.topbar-links { display: flex; gap: 20px; align-items: center; }
.topbar-links a { display: inline-flex; align-items: center; gap: 7px; }
.topbar-links a:hover { color: #fff; }
.topbar-wa { color: #7ee2a8; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(255, 255, 255, .94);
  backdrop-filter: saturate(150%) blur(10px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .25s ease, background .25s ease;
}
.site-header.is-stuck { box-shadow: 0 6px 24px rgba(16, 42, 67, .09); }
.header-inner { display: flex; align-items: center; gap: 28px; min-height: 74px; }

.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand-mark { width: 38px; height: 38px; color: var(--navy); flex: none; }
.brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.brand-name { font-size: 21px; font-weight: 800; letter-spacing: .12em; color: var(--navy); }
.brand-sub { font-size: 10.5px; letter-spacing: .18em; color: var(--muted-2); text-transform: uppercase; margin-top: 3px; }
.brand--footer .brand-name,
.brand--footer .brand-sub { color: #fff; }
.brand--footer .brand-mark { color: #fff; }

.primary-nav { margin-inline-start: auto; }
.nav-list { display: flex; align-items: center; gap: 4px; }
.nav-list > li { position: relative; }
.nav-list > li > a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  font-size: 14.5px;
  font-weight: 550;
  color: var(--navy);
  border-radius: 8px;
}
.nav-list > li > a:hover { color: var(--red); }
.nav-list > li.current-menu-item > a,
.nav-list > li.current_page_item > a { color: var(--red); }
.chev { opacity: .55; }

.sub-menu {
  position: absolute;
  top: calc(100% + 10px);
  inset-inline-start: 0;
  min-width: 320px;
  padding: 14px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all .22s ease;
  z-index: 20;
}
.has-panel:hover > .sub-menu,
.has-panel:focus-within > .sub-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.sub-menu a { display: block; padding: 9px 12px; border-radius: 8px; font-size: 14px; color: var(--ink); }
.sub-menu a:hover { background: var(--sand); color: var(--navy); }

.header-actions { display: flex; align-items: center; gap: 14px; }
.lang-switch { display: inline-flex; align-items: center; gap: 2px; padding: 3px; border: 1px solid var(--line); border-radius: 999px; }
.lang-switch a { padding: 5px 9px; font-size: 11.5px; font-weight: 700; letter-spacing: .06em; color: var(--muted); border-radius: 999px; }
.lang-switch a.is-active { background: var(--navy); color: #fff; }
.lang-switch a:hover { color: var(--navy); }
.lang-switch a.is-active:hover { color: #fff; }

.nav-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); background: #fff; border-radius: 10px; padding: 0; cursor: pointer; }
.nav-toggle span { display: block; width: 18px; height: 1.8px; background: var(--navy); margin: 4px auto; transition: .25s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(5.8px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5.8px) rotate(-45deg); }
.nav-mobile-extra { display: none; }

/* 5. Hero ------------------------------------------------ */
.hero { position: relative; height: clamp(520px, 78vh, 760px); overflow: hidden; background: var(--navy); }
.hero__slides {
  position: absolute; inset: 0;
  display: flex; flex-wrap: nowrap;
  will-change: transform;
  transition: transform .8s cubic-bezier(.45, .05, .2, 1);
}
.hero__slide {
  position: relative;
  flex: 0 0 100%; width: 100%; height: 100%;
  display: flex; align-items: center;
  overflow: hidden;
}
.hero__slide.is-active { z-index: 1; }
.hero__media { position: absolute; inset: 0; }
.hero__media::after {
  content: "";
  position: absolute; inset: 0;
  /* 左侧聚焦压暗保证白字可读，右侧保留产品原始亮度；底部加一层薄渐变衔接 trustbar */
  background:
    linear-gradient(180deg, rgba(8, 18, 30, .28) 0%, rgba(8, 18, 30, 0) 26%),
    linear-gradient(100deg, rgba(8, 18, 30, .96) 0%, rgba(8, 18, 30, .86) 32%, rgba(8, 18, 30, .50) 56%, rgba(8, 18, 30, .08) 78%, rgba(8, 18, 30, 0) 90%);
}
.hero__media img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.02); }
.hero__slide.is-active .hero__media img { animation: heroZoom 9s ease-out forwards; }
@keyframes heroZoom { from { transform: scale(1.02); } to { transform: scale(1.09); } }

.hero__content { position: relative; z-index: 2; color: #fff; max-width: var(--container); opacity: 0; transform: translateY(14px); transition: opacity .7s ease .12s, transform .7s ease .12s; }
.hero__slide.is-active .hero__content { opacity: 1; transform: none; }
.hero__slide .hero__content > * { max-width: 620px; }
.hero__eyebrow { display: inline-block; font-size: 12px; letter-spacing: .18em; text-transform: uppercase; color: #ffd9cf; margin-bottom: 18px; font-weight: 600; }
.hero__title { color: #fff; font-size: clamp(30px, 4.4vw, 56px); line-height: 1.1; margin-bottom: 18px; text-wrap: balance; }
.hero__sub { color: rgba(255, 255, 255, .84); font-size: clamp(15px, 1.3vw, 18px); margin-bottom: 30px; }
.hero__actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 40px; }
.hero__catalog {
  display: inline-flex; align-items: center; gap: 9px;
  margin-top: -20px; margin-bottom: 30px;
  font-size: 13px; color: rgba(255, 255, 255, .86);
  border-bottom: 1px solid rgba(255, 255, 255, .3);
  padding-bottom: 3px; transition: color .25s, border-color .25s;
}
.hero__catalog:hover { color: #fff; border-color: #fff; }
.hero__catalog span { font-size: 11px; letter-spacing: .1em; text-transform: uppercase; opacity: .6; padding-inline-start: 5px; }
.catalog-btn { display: inline-flex; align-items: center; gap: 9px; margin-top: 22px; }
.catalog-btn__meta { font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted-2); }
.hero__facts { display: flex; gap: 34px; flex-wrap: wrap; }
.hero__facts li { display: flex; flex-direction: column; }
.hero__facts strong { font-size: 22px; color: #fff; font-weight: 700; }
.hero__facts span { font-size: 12.5px; color: rgba(255, 255, 255, .66); letter-spacing: .02em; }

.hero__dots { position: absolute; inset-inline: 0; bottom: 24px; display: flex; justify-content: center; gap: 8px; z-index: 3; }
.hero__dot { width: 26px; height: 3px; border: 0; border-radius: 99px; background: rgba(255, 255, 255, .34); cursor: pointer; padding: 0; transition: .25s ease; }
.hero__dot.is-active { background: #fff; width: 44px; }

.hero__nav {
  position: absolute; bottom: 18px; inset-inline-end: 26px; z-index: 4;
  display: flex; gap: 8px;
}
.hero__nav button {
  width: 40px; height: 40px; padding: 0;
  display: grid; place-items: center;
  border-radius: 50%; cursor: pointer;
  color: #fff;
  background: rgba(8, 18, 30, .38);
  border: 1px solid rgba(255, 255, 255, .34);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  transition: background .25s ease, border-color .25s ease, transform .25s ease;
}
.hero__nav button:hover { background: rgba(8, 18, 30, .72); border-color: #fff; transform: translateY(-1px); }
.hero__nav button:focus-visible { outline: 2px solid #fff; outline-offset: 3px; }
.hero__nav svg { width: 18px; height: 18px; }

/* 6. Trustbar -------------------------------------------- */
.trustbar { background: var(--navy); color: #fff; }
.trustbar__inner { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; padding-block: 26px; }
.trustbar__item { display: flex; flex-direction: column; gap: 2px; padding-inline-start: 18px; border-inline-start: 2px solid rgba(255, 255, 255, .16); }
.trustbar__item strong { font-size: 19px; font-weight: 700; }
.trustbar__item span { font-size: 12.5px; color: rgba(255, 255, 255, .66); }

/* 7. Category cards -------------------------------------- */
.cat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(248px, 1fr)); gap: 24px; }
.cat-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.cat-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: transparent; }
.cat-card__media { display: block; aspect-ratio: 4 / 3; overflow: hidden; background: var(--sand); }
.cat-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s cubic-bezier(.2, .7, .2, 1); }
.cat-card:hover .cat-card__media img { transform: scale(1.06); }
.cat-card__body { display: block; padding: 26px 26px 28px; }
.cat-card__count { font-size: 11.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted-2); }
.cat-card__title { font-size: 22px; margin: 8px 0 10px; }
.cat-card__desc { color: var(--muted); font-size: 14.5px; margin-bottom: 16px; }
.cat-card__tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 18px; }
.cat-card__link { font-size: 13.5px; font-weight: 650; color: var(--red); }

/* 8. Product grid & flip cards --------------------------- */
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.p-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.p-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: transparent; }
.p-card__media { position: relative; display: block; aspect-ratio: 1 / 1; background: var(--sand); overflow: hidden; perspective: 1200px; }
.p-card__flip { position: absolute; inset: 0; display: block; transform-style: preserve-3d; transition: transform .7s cubic-bezier(.25, .8, .25, 1); }
.p-card__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; backface-visibility: hidden; }
.p-card__img--back { transform: rotateY(180deg); }
@media (hover: hover) {
  .p-card:hover .p-card__flip { transform: rotateY(180deg); }
}
.p-card__model {
  position: absolute; inset-inline-start: 14px; top: 14px;
  padding: 5px 11px; border-radius: 999px;
  background: rgba(255, 255, 255, .92);
  color: var(--navy); font-size: 11.5px; font-weight: 700; letter-spacing: .06em;
  backdrop-filter: blur(4px);
}
.p-card__body { display: flex; flex-direction: column; flex: 1; padding: 20px 20px 22px; }
.p-card__title { font-size: 17px; margin: 0 0 8px; }
.p-card__title a:hover { color: var(--red); }
.p-card__excerpt { color: var(--muted); font-size: 13.5px; line-height: 1.6; margin-bottom: 14px; }
.p-card__specs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px 16px; margin-bottom: 18px; }
.p-card__specs li { display: flex; flex-direction: column; font-size: 13px; font-weight: 600; color: var(--navy); }
.p-card__specs span { font-size: 11px; font-weight: 500; color: var(--muted-2); letter-spacing: .04em; text-transform: uppercase; }
.p-card__actions { display: flex; gap: 8px; margin-top: auto; }
.p-card__actions .btn { flex: 1; }

/* 9. Values / buyers / factory --------------------------- */
.values-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.values-grid--3 { grid-template-columns: repeat(3, 1fr); }
.value-card { padding: 30px 26px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.value-card__num { display: block; font-size: 13px; font-weight: 700; color: var(--red); letter-spacing: .1em; margin-bottom: 16px; }
.value-card__title { font-size: 18px; margin-bottom: 10px; }
.value-card__text { color: var(--muted); font-size: 14px; margin: 0; }

.buyers-grid { display: grid; grid-template-columns: repeat(3, 1fr); grid-auto-rows: 220px; gap: 16px; }
.buyer-tile { position: relative; margin: 0; border-radius: var(--radius); overflow: hidden; background: var(--sand); }
.buyer-tile img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s cubic-bezier(.2, .7, .2, 1); }
.buyer-tile:hover img { transform: scale(1.05); }
.buyer-tile figcaption {
  position: absolute; inset-inline: 0; bottom: 0;
  padding: 40px 18px 16px;
  color: #fff; font-size: 13px; font-weight: 600;
  background: linear-gradient(to top, rgba(9, 22, 35, .82), rgba(9, 22, 35, 0));
}
.buyer-tile--1 { grid-column: span 2; grid-row: span 2; }

.video-duo { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 20px; }
.video-card { position: relative; margin: 0; border-radius: var(--radius); overflow: hidden; background: #0d1f31; }
.video-card video { width: 100%; height: 100%; object-fit: cover; display: block; aspect-ratio: 16 / 9; }
.video-card figcaption {
  position: absolute; inset-inline: 0; bottom: 0;
  padding: 44px 22px 18px;
  background: linear-gradient(to top, rgba(9, 22, 35, .86), transparent);
  color: #fff; display: flex; flex-direction: column; gap: 4px;
}
.video-card__tag { font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: #ffc9ba; }
.video-card strong { font-size: 16px; font-weight: 600; }
.video-card--wide video { aspect-ratio: 21 / 9; }

.factory-layout { display: grid; grid-template-columns: 1fr 1.05fr; gap: clamp(32px, 5vw, 72px); align-items: center; }
.factory-list { display: grid; gap: 18px; margin: 28px 0 30px; }
.factory-list li { padding-inline-start: 20px; border-inline-start: 2px solid var(--red); }
.factory-list strong { display: block; font-size: 15px; color: var(--navy); margin-bottom: 3px; }
.factory-list span { font-size: 14px; color: var(--muted); }

.factory-mosaic { display: grid; grid-template-columns: 1fr 1fr; grid-auto-rows: 168px; gap: 14px; }
.factory-mosaic__item { margin: 0; border-radius: var(--radius); overflow: hidden; background: var(--sand); }
.factory-mosaic__item img { width: 100%; height: 100%; object-fit: cover; }
.factory-mosaic__item--1 { grid-row: span 2; }
/* 第 4 张横跨整行收尾，避免右下角留空洞 */
.factory-mosaic__item--4 { grid-column: span 2; }

.section--values { background: var(--sand); }

/* 10. Certifications marquee ----------------------------- */
.marquee { position: relative; overflow: hidden; padding-block: 8px; direction: ltr; mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marquee__track { display: flex; gap: 28px; width: max-content; animation: marquee 38s linear infinite; }
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__item { display: flex; align-items: center; justify-content: center; width: 210px; height: 104px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; padding: 16px; }
.marquee__item img { height: 72px; width: auto; max-width: 100%; object-fit: contain; opacity: .95; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.certs-note { text-align: center; color: var(--muted-2); font-size: 12.5px; margin-top: 26px; }
/* 轮播内部固定 LTR，避免 RTL 下轨道从右缘向左溢出导致看不到内容 */

/* 11. FAQ ------------------------------------------------ */
.faq-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(28px, 5vw, 64px); }
.faq-list { display: grid; gap: 10px; }
.faq-item { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; overflow: hidden; }
.faq-item__q {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 18px 22px; background: none; border: 0; text-align: start;
  font-size: 15.5px; font-weight: 600; color: var(--navy); cursor: pointer;
}
.faq-item__q i { position: relative; width: 14px; height: 14px; flex: none; }
.faq-item__q i::before,
.faq-item__q i::after { content: ""; position: absolute; inset-inline-start: 0; top: 6px; width: 14px; height: 1.8px; background: var(--red); transition: transform .25s ease; }
.faq-item__q i::after { transform: rotate(90deg); }
.faq-item.is-open .faq-item__q i::after { transform: rotate(0); }
.faq-item__a { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-item__a p { margin: 0; padding: 0 22px 20px; color: var(--muted); font-size: 14.5px; }
.faq-page-grid { display: grid; grid-template-columns: 1.6fr .9fr; gap: 40px; align-items: start; }
.faq-aside { position: sticky; top: 110px; }

/* 12. Inquiry form --------------------------------------- */
.section--cta { background: var(--sand); }
.section--cta-inner { border-radius: var(--radius-lg); }
.inquiry-card {
  display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(26px, 4vw, 56px);
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: clamp(24px, 4vw, 48px); box-shadow: var(--shadow-sm);
}
.inquiry-card--compact { grid-template-columns: 1fr; gap: 22px; }
.inquiry-card--compact .inquiry-card__title { font-size: clamp(22px, 2.2vw, 28px); }
.inquiry-card--compact .inquiry-card__lead { max-width: 62ch; }
.inquiry-card--compact .inquiry-card__points { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px 18px; margin: 18px 0 0; }
.inquiry-card--compact .inquiry-card__wa { display: none; }
.inquiry-card__title { font-size: clamp(24px, 2.6vw, 32px); margin-bottom: 12px; }
.inquiry-card__lead { color: var(--muted); font-size: 15px; }
.inquiry-card__points { display: grid; gap: 10px; margin: 22px 0 26px; }
.inquiry-card__points li { position: relative; padding-inline-start: 24px; font-size: 14px; color: var(--ink); }
.inquiry-card__points li::before {
  content: ""; position: absolute; inset-inline-start: 0; top: 6px;
  width: 14px; height: 8px; border-inline-start: 2px solid var(--red); border-bottom: 2px solid var(--red);
  transform: rotate(-45deg);
}
.inquiry-card__wa { display: inline-flex; flex-direction: column; gap: 2px; padding: 14px 18px; border-radius: var(--radius); background: var(--sand); }
.inquiry-card__wa span { font-size: 12px; color: var(--muted); }
.inquiry-card__wa strong { font-size: 17px; color: var(--navy); letter-spacing: .02em; }

.inquiry-form { display: grid; gap: 14px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field__label { font-size: 12.5px; font-weight: 600; color: var(--navy); letter-spacing: .02em; }
.field input, .field textarea {
  width: 100%; padding: 12px 14px;
  border: 1px solid var(--line); border-radius: 10px;
  font: inherit; font-size: 14.5px; color: var(--ink);
  background: #fcfcfd; transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--navy-600); background: #fff; box-shadow: 0 0 0 3px rgba(31, 68, 104, .1); }
.field textarea { resize: vertical; min-height: 96px; }
/* 反垃圾蜜罐字段：用裁切隐藏，不用 left:-9999px（RTL 下会撑出超宽滚动区） */
.field--hp { position: absolute !important; width: 1px; height: 1px; margin: -1px; padding: 0; border: 0; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; opacity: 0; pointer-events: none; }
.form-note { font-size: 12px; color: var(--muted-2); margin: 0; }
.form-feedback { font-size: 13.5px; margin: 0; min-height: 1em; }
.form-feedback.is-error { color: #c02b1a; }
.form-feedback.is-success { color: #1f7a4d; }
.inquiry-form.is-loading .btn { opacity: .7; pointer-events: none; }

/* 13. Inner pages ---------------------------------------- */
.page-hero { position: relative; min-height: 420px; display: flex; align-items: flex-end; padding-block: 96px 64px; color: #fff; overflow: hidden; background: var(--navy); }
.page-hero__bg { position: absolute; inset: 0; }
.page-hero__bg::after {
  content: ""; position: absolute; inset: 0;
  /* 文字一侧压深保证对比，另一侧保留车间细节 */
  background:
    linear-gradient(180deg, rgba(9, 25, 40, .30) 0%, rgba(9, 25, 40, .18) 40%, rgba(9, 25, 40, .92) 100%),
    linear-gradient(90deg, rgba(9, 25, 40, .86) 0%, rgba(9, 25, 40, .62) 38%, rgba(9, 25, 40, .22) 70%, rgba(9, 25, 40, .08) 100%);
}
.is-rtl .page-hero__bg::after {
  background:
    linear-gradient(180deg, rgba(9, 25, 40, .30) 0%, rgba(9, 25, 40, .18) 40%, rgba(9, 25, 40, .92) 100%),
    linear-gradient(270deg, rgba(9, 25, 40, .86) 0%, rgba(9, 25, 40, .62) 38%, rgba(9, 25, 40, .22) 70%, rgba(9, 25, 40, .08) 100%);
}
.page-hero__bg img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(.78) contrast(1.12) brightness(.92); }
.page-hero__inner { position: relative; z-index: 2; }
.page-hero .page-title { color: #fff; font-size: clamp(30px, 4vw, 48px); }
.page-hero .page-lead { color: rgba(255, 255, 255, .8); font-size: 17px; max-width: 640px; }
.page-hero--compact { min-height: 0; padding-block: 56px 40px; background: var(--sand); color: var(--ink); }
.page-hero--compact .page-title { color: var(--navy); }
.page-hero--compact .page-lead { color: var(--muted); }
/* 紧凑页头后面紧跟的区块不要叠出过大的空白 */
.page-hero--compact + .section { padding-top: clamp(30px, 3.4vw, 52px); }
.page-hero--compact + .section--stats { padding-top: clamp(30px, 3.4vw, 44px); }
.page-title { font-size: clamp(28px, 3.4vw, 42px); }
.page-lead { color: var(--muted); font-size: 16.5px; max-width: 760px; }

.about-intro { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(30px, 5vw, 64px); align-items: center; }
.about-media { position: relative; }
.about-media img { border-radius: var(--radius-lg); }
.about-media__badge {
  position: absolute; inset-inline-end: -14px; bottom: -14px;
  background: var(--navy); color: #fff; padding: 20px 24px; border-radius: var(--radius);
  display: flex; flex-direction: column; box-shadow: var(--shadow);
}
.about-media__badge strong { font-size: 26px; }
.about-media__badge span { font-size: 12px; color: rgba(255, 255, 255, .7); }

.entry-content { font-size: 16px; color: var(--ink); }
.entry-content h2 { font-size: 24px; margin-top: 1.6em; }
.entry-content h3 { font-size: 19px; margin-top: 1.4em; }
.entry-content p, .entry-content li { color: #3c4b59; }
.entry-content ul { list-style: disc; padding-inline-start: 22px; margin-bottom: 1.2em; }
.entry-content ol { list-style: decimal; padding-inline-start: 22px; margin-bottom: 1.2em; }
.entry-content a { color: var(--red); text-decoration: underline; text-underline-offset: 3px; }
.entry-content img { border-radius: var(--radius); margin-block: 1.4em; }

.section--stats { background: var(--sand); padding-block: 48px; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat { display: flex; flex-direction: column; gap: 4px; text-align: center; }
.stat strong { font-size: clamp(26px, 3vw, 38px); color: var(--navy); font-weight: 700; letter-spacing: -.02em; }
.stat span { font-size: 13px; color: var(--muted); }

.split-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 64px); align-items: center; }
.split-media { margin: 0; }
.split-media img { border-radius: var(--radius-lg); }
.check-list { display: grid; gap: 10px; margin: 22px 0 26px; }
.check-list li { position: relative; padding-inline-start: 26px; font-size: 14.7px; color: var(--ink); }
.check-list li::before {
  content: ""; position: absolute; inset-inline-start: 0; top: 7px; width: 13px; height: 7px;
  border-inline-start: 2px solid var(--red); border-bottom: 2px solid var(--red); transform: rotate(-45deg);
}

.process-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: step; }
.process-step { padding: 28px 24px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.process-step__num { display: block; font-size: 12px; font-weight: 700; letter-spacing: .12em; color: var(--red); margin-bottom: 14px; }
.process-step h3 { font-size: 17px; margin-bottom: 8px; }
.process-step p { color: var(--muted); font-size: 14px; margin: 0; }

.factory-gallery { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 200px; gap: 14px; }
.factory-gallery__item { margin: 0; border-radius: var(--radius); overflow: hidden; background: var(--sand); }
.factory-gallery__item img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s ease; }
.factory-gallery__item:hover img { transform: scale(1.05); }
/* 横图放宽格、竖图放方格，避免被裁成窄条
   布局： [1 1 2 2] / [1 1 3 3] / [4 5 6 6] */
.factory-gallery__item--1 { grid-column: span 2; grid-row: span 2; }
.factory-gallery__item--2 { grid-column: span 2; }
.factory-gallery__item--3 { grid-column: span 2; }
.factory-gallery__item--6 { grid-column: span 2; }

.video-wide { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(28px, 4vw, 52px); align-items: center; }

.contact-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(26px, 4vw, 48px); align-items: start; }
.contact-info { display: grid; gap: 14px; }
.contact-tile { display: flex; flex-direction: column; gap: 4px; padding: 22px 24px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.contact-tile__label { font-size: 11.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted-2); }
.contact-tile strong { font-size: 17px; color: var(--navy); word-break: break-word; }
/* 号码在 RTL 下必须保持从左到右，否则 +86 759 6618337 会被双向排版拆散 */
.num-ltr { direction: ltr; unicode-bidi: isolate; display: inline-block; }
.contact-tile__hint { font-size: 13px; color: var(--muted); }
.contact-tile__link { font-size: 13px; color: var(--red); font-weight: 600; margin-top: 4px; }
.contact-tile--wa { background: var(--navy); border-color: var(--navy); }
.contact-tile--wa .contact-tile__label { color: rgba(255, 255, 255, .6); }
.contact-tile--wa strong { color: #fff; font-size: 20px; }
.contact-tile--wa .contact-tile__hint { color: rgba(255, 255, 255, .7); }
.contact-tile--muted { background: var(--sand); }

.product-hero { padding-block: 30px 0; }
.product-hero__grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(26px, 4vw, 56px); align-items: start; }
.product-gallery__main { position: relative; border-radius: var(--radius-lg); overflow: hidden; background: var(--sand); aspect-ratio: 1 / 1; }
.product-gallery__main img { width: 100%; height: 100%; object-fit: cover; }
.product-gallery__model { position: absolute; inset-inline-start: 18px; top: 18px; padding: 6px 13px; border-radius: 999px; background: rgba(255, 255, 255, .94); font-size: 12px; font-weight: 700; letter-spacing: .06em; color: var(--navy); }
.product-gallery__thumbs { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.product-gallery__thumb { width: 82px; height: 82px; padding: 0; border: 2px solid transparent; border-radius: 10px; overflow: hidden; background: var(--sand); cursor: pointer; }
.product-gallery__thumb.is-active { border-color: var(--navy); }
.product-gallery__thumb img { width: 100%; height: 100%; object-fit: cover; }

.product-summary__cat { display: inline-block; font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--red); margin-bottom: 12px; }
.product-summary__title { font-size: clamp(26px, 3vw, 38px); margin-bottom: 12px; }
.product-summary__excerpt { color: var(--muted); font-size: 15.5px; }
.spec-strip { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; margin: 22px 0 26px; }
.spec-strip li { background: #fff; padding: 14px 16px; display: flex; flex-direction: column; gap: 2px; }
.spec-strip span { font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted-2); }
.spec-strip strong { font-size: 15px; color: var(--navy); }
.product-summary__actions { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 22px; }
.product-summary__points { display: grid; gap: 8px; }
.product-summary__points li { position: relative; padding-inline-start: 22px; font-size: 13.5px; color: var(--muted); }
.product-summary__points li::before { content: ""; position: absolute; inset-inline-start: 0; top: 8px; width: 6px; height: 6px; border-radius: 50%; background: var(--red); }

.detail-grid { display: grid; grid-template-columns: 1.55fr .75fr; gap: clamp(28px, 4vw, 56px); align-items: start; }
.detail-title { font-size: 22px; margin: 34px 0 14px; }
.detail-title:first-child { margin-top: 0; }
.feature-list { display: grid; gap: 9px; }
.feature-list li { position: relative; padding-inline-start: 24px; font-size: 14.7px; color: #3c4b59; }
.feature-list li::before { content: ""; position: absolute; inset-inline-start: 0; top: 7px; width: 13px; height: 7px; border-inline-start: 2px solid var(--red); border-bottom: 2px solid var(--red); transform: rotate(-45deg); }
.spec-table { width: 100%; border-collapse: collapse; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; font-size: 14.5px; }
.spec-table th, .spec-table td { padding: 12px 16px; text-align: start; border-bottom: 1px solid var(--line); }
.spec-table th { background: var(--sand); font-weight: 600; color: var(--navy); width: 40%; }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: 0; }
.detail-aside { display: grid; gap: 16px; position: sticky; top: 100px; }
.aside-card { padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.aside-card h3 { font-size: 17px; margin-bottom: 8px; }
.aside-card p { font-size: 14px; color: var(--muted); }
.aside-card--muted { background: var(--sand); border-color: transparent; }
.aside-list { display: grid; gap: 8px; font-size: 13.7px; color: #3c4b59; }
.aside-link { display: block; margin-top: 12px; font-size: 13.5px; color: var(--red); }

.pagination { display: flex; gap: 6px; justify-content: center; padding-block: 40px; }
.pagination .page-numbers { display: inline-flex; align-items: center; justify-content: center; min-width: 38px; height: 38px; padding-inline: 10px; border: 1px solid var(--line); border-radius: 10px; font-size: 14px; }
.pagination .page-numbers.current { background: var(--navy); color: #fff; border-color: var(--navy); }

.section--404 { text-align: center; padding-block: 120px; }
.error-code { font-size: 76px; font-weight: 800; color: var(--sand-200); line-height: 1; margin: 0 0 12px; }
.error-actions { display: flex; gap: 10px; justify-content: center; margin-top: 26px; }

.post-list { display: grid; gap: 28px; }
.post-item__title { font-size: 22px; margin-bottom: 6px; }
.post-item__meta { font-size: 12.5px; color: var(--muted-2); }

/* 14. Footer & floating actions -------------------------- */
.site-footer { background: var(--navy); color: rgba(255, 255, 255, .74); padding-block: 64px 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 48px; }
.footer-blurb { font-size: 14px; margin: 18px 0 12px; color: rgba(255, 255, 255, .7); }
.footer-entity { font-size: 12.5px; color: rgba(255, 255, 255, .45); }
.footer-title { color: #fff; font-size: 14px; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 18px; }
.footer-list { display: grid; gap: 10px; font-size: 14px; }
.footer-list a:hover { color: #fff; }
.footer-contact li { display: flex; flex-direction: column; gap: 1px; }
.footer-label { font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: rgba(255, 255, 255, .42); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .1); }
.footer-bottom-inner { display: flex; justify-content: space-between; gap: 16px; padding-block: 20px; font-size: 12.5px; color: rgba(255, 255, 255, .5); flex-wrap: wrap; }
.footer-bottom p { margin: 0; }

.wa-float {
  position: fixed; inset-inline-end: 22px; bottom: 26px; z-index: 120;
  display: inline-flex; align-items: center; justify-content: center;
  width: 56px; height: 56px; padding: 0; border-radius: 999px;
  background: var(--green); color: #fff;
  box-shadow: 0 10px 26px rgba(37, 211, 102, .34);
  transition: transform .2s ease, box-shadow .2s ease;
}
.wa-float:hover { transform: translateY(-2px); box-shadow: 0 14px 32px rgba(37, 211, 102, .42); color: #fff; }
/* 默认只显示圆形图标，悬停才浮出文字，避免遮挡右侧内容 */
.wa-float__label {
  position: absolute; inset-inline-end: calc(100% + 10px); top: 50%;
  transform: translateY(-50%) translateX(4px);
  white-space: nowrap; padding: 8px 12px; border-radius: 8px;
  background: rgba(13, 31, 49, .94); color: #fff;
  font-size: 12.5px; font-weight: 650; letter-spacing: .01em;
  opacity: 0; pointer-events: none; transition: opacity .18s ease, transform .18s ease;
}
.wa-float:hover .wa-float__label, .wa-float:focus-visible .wa-float__label { opacity: 1; transform: translateY(-50%) translateX(0); }
.wa-float__pulse { position: absolute; inset: 0; border-radius: 999px; border: 2px solid rgba(37, 211, 102, .55); animation: pulse 2.4s ease-out infinite; }
@keyframes pulse { 0% { transform: scale(1); opacity: .8; } 70% { transform: scale(1.14); opacity: 0; } 100% { opacity: 0; } }

.mobile-bar { display: none; }

/* 15. Motion --------------------------------------------- */
.binuo-js [data-reveal] { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s cubic-bezier(.2, .7, .2, 1); }
.binuo-js [data-reveal].is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  [data-reveal] { opacity: 1; transform: none; }
}

/* 16. RTL ------------------------------------------------ */
.is-rtl .brand-name { letter-spacing: .06em; }
.is-rtl .hero__media::after { background: linear-gradient(180deg, rgba(8, 18, 30, .28) 0%, rgba(8, 18, 30, 0) 26%), linear-gradient(270deg, rgba(9, 25, 40, .93) 0%, rgba(9, 25, 40, .84) 34%, rgba(9, 25, 40, .48) 58%, rgba(9, 25, 40, .10) 80%); }
.is-rtl .chev { transform: rotate(180deg); }
.is-rtl .hero__nav svg { transform: scaleX(-1); }
.is-rtl .inquiry-card__points li::before,
.is-rtl .check-list li::before,
.is-rtl .feature-list li::before { transform: rotate(45deg); }
.is-rtl .btn__label { letter-spacing: 0; }
.is-rtl .spec-table th, .is-rtl .spec-table td { text-align: start; }

/* 17. Responsive ----------------------------------------- */
@media (max-width: 1100px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-col:last-child { grid-column: span 3; }
  .buyers-grid { grid-template-columns: repeat(2, 1fr); }
  .buyer-tile--1 { grid-column: span 2; grid-row: span 1; }
  .factory-gallery { grid-template-columns: repeat(3, 1fr); }
  .factory-gallery__item--1 { grid-row: span 1; grid-column: span 2; }
  .factory-gallery__item--2, .factory-gallery__item--3, .factory-gallery__item--6 { grid-column: span 1; }
}

@media (max-width: 900px) {
  :root { --section-y: clamp(48px, 8vw, 72px); }
  .topbar { display: none; }
  .header-inner { min-height: 64px; gap: 12px; }
  .nav-toggle { display: block; }
  .header-quote { display: none; }
  .lang-switch { display: none; }
  .primary-nav {
    position: fixed; inset: 0 0 auto 0; top: 64px;
    background: #fff; padding: 18px var(--gutter) 28px;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    transform: translateY(-120%); transition: transform .3s ease;
    max-height: calc(100vh - 64px); overflow-y: auto; z-index: 80;
  }
  .primary-nav.is-open { transform: translateY(0); }
  .nav-list { flex-direction: column; align-items: stretch; gap: 2px; }
  .nav-list > li > a { padding: 14px 4px; font-size: 16px; border-bottom: 1px solid var(--line); border-radius: 0; justify-content: space-between; }
  .sub-menu {
    position: static; opacity: 1; visibility: visible; transform: none;
    box-shadow: none; border: 0; border-radius: 0; padding: 4px 0 10px; min-width: 0;
    background: var(--sand);
  }
  .sub-menu a { padding: 10px 14px; }
  .nav-mobile-extra { display: grid; gap: 12px; margin-top: 20px; }
  .lang-switch--mobile { display: inline-flex; justify-self: start; }
  .hero { height: clamp(460px, 74vh, 620px); }
  .hero__nav { display: none; }
  .hero__facts { gap: 20px; }
  .trustbar__inner { grid-template-columns: repeat(2, 1fr); gap: 16px; padding-block: 22px; }
  .inquiry-card { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .factory-layout, .about-intro, .split-grid, .video-wide, .contact-grid, .faq-layout,
  .product-hero__grid, .detail-grid, .faq-page-grid { grid-template-columns: 1fr; }
  .detail-aside, .faq-aside { position: static; }
  .product-gallery__thumbs { overflow-x: auto; flex-wrap: nowrap; padding-bottom: 4px; }
  .buyers-grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 180px; }
  .buyer-tile--1 { grid-column: span 2; grid-row: span 1; }
  .video-duo { grid-template-columns: 1fr; }
  .values-grid, .values-grid--3 { grid-template-columns: 1fr; }
  .process-list { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 28px 16px; }
  .factory-gallery { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 160px; }
  .factory-gallery__item--1 { grid-column: span 2; grid-row: span 1; }
  .factory-gallery__item--2, .factory-gallery__item--3, .factory-gallery__item--6 { grid-column: span 1; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-col:last-child { grid-column: span 2; }
  .footer-col:first-child { grid-column: span 2; }
  /* 移动端已有底部常驻 WhatsApp 条，隐藏重复的侧边悬浮钮，避免遮挡询盘按钮 */
  .wa-float { display: none; }
  .mobile-bar {
    display: grid; grid-template-columns: 1fr 1fr; gap: 10px;
    position: fixed; inset-inline: 0; bottom: 0; z-index: 110;
    padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
    background: rgba(255, 255, 255, .96); backdrop-filter: blur(10px);
    border-top: 1px solid var(--line);
  }
  .mobile-bar__btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 14px; border-radius: 10px; font-size: 14px; font-weight: 650; }
  .mobile-bar__btn--wa { background: var(--green); color: #fff; }
  .mobile-bar__btn--quote { background: var(--navy); color: #fff; }
  body { padding-bottom: 72px; }
}

@media (max-width: 600px) {
  .section-bar { flex-direction: column; align-items: flex-start; }
  .hero__title { font-size: clamp(26px, 8vw, 34px); }
  /* 移动端首屏内容较多（两个 CTA + 画册下载 + 三个数据），收紧间距保证不溢出固定高度的 hero */
  .hero__sub { margin-bottom: 22px; }
  .hero__actions { margin-bottom: 18px; }
  .hero__catalog { margin-top: -4px; margin-bottom: 14px; font-size: 12px; }
  .hero__catalog span { font-size: 10px; }
  /* 三项数据固定一行三列，避免第三项落单；标签允许折行 */
  .hero__facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px 12px; margin: 0; }
  .hero__facts li { min-width: 0; }
  .hero__facts strong { font-size: 18px; line-height: 1.15; }
  .hero__facts span { font-size: 11px; line-height: 1.35; }
  /* 移动端内容铺满整幅图，改为纵向压深，保证底部数据与画册链接可读 */
  .hero__media::after,
  .is-rtl .hero__media::after {
    background: linear-gradient(180deg, rgba(8, 18, 30, .58) 0%, rgba(8, 18, 30, .34) 34%, rgba(8, 18, 30, .68) 70%, rgba(8, 18, 30, .90) 100%);
  }
  .hero__actions .btn { flex: 1; }
  .hero__facts strong { font-size: 18px; }
  .cat-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: 1fr; gap: 14px; }
  /* 移动端产品卡改为横向紧凑排列：左图右文，缩短页面长度 */
  .p-card { flex-direction: row; align-items: stretch; }
  .p-card__media { flex: 0 0 42%; aspect-ratio: auto; }
  .p-card__body { padding: 14px 15px 14px 16px; }
  .p-card__title { font-size: 15px; margin-bottom: 6px; }
  .p-card__excerpt { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; font-size: 12.5px; margin-bottom: 10px; }
  .p-card__specs { grid-template-columns: 1fr; gap: 2px; margin-bottom: 12px; }
  .p-card__specs li { font-size: 12px; }
  .p-card__specs span { font-size: 10px; }
  .p-card__actions .btn--ghost { display: none; }
  .buyers-grid { grid-template-columns: 1fr; grid-auto-rows: 200px; }
  .buyer-tile--1 { grid-column: span 1; }
  .process-list { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px 12px; }
  /* 首屏只有 3 组数据时排成一行，避免第三项单独落单 */
  .stats-grid:has(> .stat:nth-child(3):last-child) { grid-template-columns: repeat(3, 1fr); gap: 20px 6px; }
  .stats-grid:has(> .stat:nth-child(3):last-child) .stat strong { font-size: 21px; }
  .stats-grid:has(> .stat:nth-child(3):last-child) .stat span { font-size: 11.5px; }
  .spec-strip { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-col:last-child, .footer-col:first-child { grid-column: span 1; }
  .page-hero { min-height: 340px; padding-block: 72px 48px; }
  .inquiry-card { padding: 22px 18px; }
  .factory-gallery { grid-template-columns: 1fr; }
  .factory-gallery__item--1 { grid-column: span 1; }
  .marquee__item { width: 140px; height: 82px; }
}