/* ============================================================
   广州市九叶化妆品有限公司 · 官方网站
   Style — 复刻参考站（蓝白 + 青柠点缀）设计语言，中文适配
   ============================================================ */

:root {
  --blue: #0a8f47;
  --blue-deep: #053d1c;
  --ink: #12213b;
  --muted: #53637a;
  --sky: #ebf7ef;
  --line: #d4e7d8;
  --white: #fff;
  --lime: #a8f060;
  --max: 1240px;
  --serif: "Microsoft YaHei", "微软雅黑", "Noto Serif SC", "Songti SC", Georgia, serif;
  --sans: "Microsoft YaHei", "微软雅黑", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
  --mono: "Microsoft YaHei", "微软雅黑", "JetBrains Mono", "Consolas", monospace;
}

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

body {
  color: var(--ink);
  background: var(--white);
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }

::selection { background: var(--lime); color: var(--blue-deep); }

/* ---------------- 语言切换 ---------------- */
.lang-switch { display: flex; align-items: center; flex-shrink: 0; min-width: 96px; }
.lang-switch select {
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--white)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%230a8f47' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E")
    no-repeat right 11px center;
  padding: 7px 30px 7px 14px;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--blue);
  cursor: pointer;
  outline: none;
  transition: border-color .2s ease;
}
.lang-switch select:hover { border-color: var(--blue); }

/* ---------------- Header ---------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .25s ease;
}
.site-header.scrolled { box-shadow: 0 6px 24px rgba(5, 61, 28, 0.08); }
.site-header-inner {
  height: 76px;
  max-width: var(--max);
  margin: auto;
  padding: 0 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  min-width: 0;
}

.brand { display: flex; align-items: center; gap: 12px; min-width: 208px; flex-shrink: 0; }
.nav { min-width: 0; flex: 1 1 auto; } /* nav 内容过长时内部横向滚动，不挤压 lang-switch */
.brand-mark {
  width: 42px; height: 42px;
  border: 2px solid var(--blue);
  color: var(--blue);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0;
}
.brand-mark.logo-img {
  background-size: cover;
  background-position: center;
  color: transparent;
  border: 0;
  width: 52px;
  height: 52px;
}
.brand strong, .brand small { display: block; line-height: 1.15; letter-spacing: 0; }
.brand strong { font-size: 17px; letter-spacing: 3px; }
.brand small { font-family: var(--mono); font-size: 8px; letter-spacing: 1px; margin-top: 5px; color: var(--muted); }

.nav { display: flex; align-items: center; gap: 24px; font-size: 13px; font-weight: 700; } /* 注意：不能加 overflow-x:auto，否则下拉菜单被裁（CSS 规范：overflow-x 非 visible 会让 overflow-y 隐式变 auto） */
.nav::-webkit-scrollbar { display: none; }
.nav a { color: #34435c; white-space: nowrap; position: relative; padding: 4px 0; }
.nav a::after {
  content: "";
  position: absolute; left: 0; bottom: -2px;
  width: 0; height: 2px; background: var(--blue);
  transition: width .22s ease;
}
.nav a:hover { color: var(--blue); }
.nav a:hover::after { width: 100%; }
.nav-cta {
  background: var(--blue);
  color: #fff !important;
  border: 0;
  padding: 11px 18px;
  font-size: 13px;
  font-weight: 700;
  border-radius: 4px;
  transition: background .2s ease, transform .2s ease;
  white-space: nowrap;
  flex-shrink: 0;
}
.nav-cta:hover { background: var(--blue-deep); transform: translateY(-1px); }
.nav-cta::after { display: none; }

/* 关于九叶 下拉菜单（关于我们 / 人才招聘） */
.nav .has-drop { position: relative; }
.nav .has-drop > a::after { display: none; }
.drop-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(6px);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 14px 34px rgba(5, 61, 28, .14);
  padding: 8px;
  min-width: 132px;
  opacity: 0;
  visibility: hidden;
  transition: opacity .18s ease, transform .18s ease, visibility .18s;
  z-index: 60;
}
.has-drop:hover .drop-menu { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.drop-menu a {
  display: block;
  padding: 9px 14px;
  border-radius: 6px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
}
.drop-menu a::after { display: none !important; }
.drop-menu a:hover { background: var(--sky); color: var(--blue); }

.menu-button {
  display: none;
  background: none; border: 0; padding: 10px;
  flex-direction: column; gap: 5px;
}
.menu-button span {
  width: 24px; height: 2px; background: var(--blue);
  transition: transform .25s ease, opacity .25s ease;
}
.menu-button.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-button.open span:nth-child(2) { opacity: 0; }
.menu-button.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------------- Buttons ---------------- */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid var(--ink);
  padding: 13px 24px;
  font-size: 14px;
  font-weight: 700;
  border-radius: 4px;
  min-width: 0;
  white-space: normal;
  text-align: center;
  line-height: 1.45;
  transition: all .2s ease;
}
.button > span { min-width: 0; }
.button.primary { background: var(--blue); color: #fff; border-color: var(--blue); }
.button.primary:hover { background: var(--blue-deep); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(10, 143, 71, 0.25); }
.button.secondary { background: transparent; color: var(--ink); }
.button.secondary:hover { border-color: var(--blue); color: var(--blue); }
.button.secondary.ink { border-color: var(--white); color: var(--white); }
.button.secondary.ink:hover { background: rgba(255,255,255,.1); }
.button.ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.5); }
.button.ghost:hover { border-color: var(--white); background: rgba(255,255,255,.08); }

.text-link {
  background: none; border: 0; padding: 0;
  color: var(--blue);
  font-size: 14px; font-weight: 700;
  display: inline-flex; align-items: center; gap: 8px;
  min-width: 0;
  white-space: normal;
  transition: gap .2s ease;
}
.text-link > span { min-width: 0; }
.text-link:hover { gap: 14px; }
.text-link.dark { color: #fff; }

.whatsapp-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  background: #25d366;
  color: #fff !important;
  padding: 13px 20px;
  font-size: 14px; font-weight: 700;
  border-radius: 4px;
  cursor: pointer;
  min-width: 0;
  max-width: 100%;
  white-space: normal;
  text-align: center;
  line-height: 1.45;
  transition: transform .2s ease, box-shadow .2s ease;
}
.whatsapp-button:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(37, 211, 102, 0.3); }
/* 仅第一个 span 是圆形图标；文本 span 独立处理（多语言长文本换行） */
.whatsapp-button > span:first-child {
  width: 22px; height: 22px;
  background: rgba(255,255,255,.25);
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: 10px; font-weight: 800;
  flex: none;
}
.whatsapp-button > span:last-child { min-width: 0; }

/* ---------------- Hero ---------------- */
.hero {
  position: relative;
  width: 100%;
  min-height: 620px;
  display: flex;
  align-items: center;
  padding: 56px max(28px, calc((100vw - var(--max)) / 2)) 80px;
  overflow: hidden;
}
.hero-slider { position: absolute; inset: 0; z-index: 0; }
.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0;
  transition: opacity .6s ease;
}
.hero-bg.active { opacity: 1; }
/* 左右切换箭头 */
.hero-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 6;
  width: 46px; height: 46px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .55);
  background: rgba(255, 255, 255, .22);
  color: var(--white);
  font-size: 26px;
  line-height: 1;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: background .2s ease, transform .2s ease;
}
.hero-arrow:hover { background: rgba(255, 255, 255, .45); transform: translateY(-50%) scale(1.08); }
.hero-arrow.left { left: 18px; }
.hero-arrow.right { right: 18px; }
/* 右下角圆点指示器 */
.hero-dots {
  position: absolute;
  right: 24px;
  bottom: 22px;
  z-index: 6;
  display: flex;
  gap: 8px;
}
.hero-dot {
  width: 11px; height: 11px;
  border-radius: 50%;
  border: 0;
  padding: 0;
  background: rgba(255, 255, 255, .45);
  cursor: pointer;
  transition: background .2s ease, transform .2s ease;
}
.hero-dot:hover { background: rgba(255, 255, 255, .75); }
.hero-dot.active { background: var(--lime); transform: scale(1.25); }
/* 左侧白雾渐变：让文字卡片区域更清晰、右侧保留图片细节 */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(90deg, rgba(255,255,255,.78), rgba(255,255,255,.28) 48%, rgba(255,255,255,.06));
  pointer-events: none;
}
.eyebrow, .section-label {
  color: var(--blue);
  letter-spacing: 2px;
  margin: 0;
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.4;
  font-weight: 700;
}
.hero h1 {
  margin: 22px 0 24px;
  font-size: clamp(38px, 4.8vw, 66px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: 1px;
}
.hero h1 em {
  color: var(--blue);
  font-family: var(--serif);
  font-weight: 600;
  font-style: italic;
}
.hero-text { max-width: 540px; color: var(--muted); font-size: 17px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }

/* 左侧文字卡片（浮在 banner 背景图上） */
.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 620px;
  background: rgba(255, 255, 255, .92);
  padding: 40px 44px;
  border-radius: 14px;
  box-shadow: 0 16px 38px rgba(5, 61, 28, .12), 0 2px 6px rgba(5, 61, 28, .04);
}

/* ---------------- Proof strip ---------------- */
.proof-strip {
  background: var(--blue-deep);
  color: var(--white);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding: 40px max(28px, calc((100vw - var(--max)) / 2));
}
.proof-strip div { display: flex; flex-direction: column; gap: 6px; border-left: 1px solid rgba(255,255,255,.18); padding-left: 22px; }
.proof-strip div:first-child { border-left: 0; padding-left: 0; }
.proof-strip strong { font-size: clamp(28px, 3.2vw, 44px); font-weight: 800; color: var(--lime); line-height: 1.1; }
.proof-strip span { font-size: 13px; color: rgba(255,255,255,.78); letter-spacing: 1px; }

/* ---------------- Sections (shared) ---------------- */
.section { max-width: var(--max); margin: auto; padding: 92px 28px; }
.section-label { margin-bottom: 18px; }
.section-label.light { color: var(--lime); }

.intro-grid {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 40px;
  align-items: end;
  margin-bottom: 48px;
}
.intro-grid h2, .quality-heading h2, .oem-title h2,
.factory-heading h2, .products-heading h2, .partners-heading h2,
.about-heading h2, .facility-copy h2, .location-copy h2, .contact h2, .film-copy h2,
.about-heading, .location-heading {
  margin: 0;
  font-size: clamp(28px, 3.4vw, 44px);
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: 1px;
}
.about-heading, .location-heading { margin: 0 0 18px; }
.intro-grid p, .quality-heading p, .oem-title p, .factory-heading p,
.partners-heading p, .about-heading p, .facility-copy p, .location-copy p, .contact p, .film-copy p {
  color: var(--muted);
  margin: 16px 0 0;
  font-size: 16px;
}

/* ---------------- Category grid ---------------- */
.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.category {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 30px 26px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--white);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.category:hover { transform: translateY(-6px); box-shadow: 0 18px 40px rgba(10, 143, 71, 0.10); border-color: var(--blue); }
.category > span { font-family: var(--mono); color: var(--blue); font-size: 13px; font-weight: 700; }
.category h3 { margin: 0; font-size: 22px; letter-spacing: 1px; }
.category p { margin: 0; color: var(--muted); font-size: 14.5px; }
.category-discuss {
  margin-top: auto;
  background: none; border: 0; padding: 0;
  color: var(--blue);
  font-size: 13px; font-weight: 700;
  display: inline-flex; align-items: center; gap: 8px;
  transition: gap .2s ease;
}
.category-discuss:hover { gap: 14px; }

.section-whatsapp { margin-top: 40px; }

/* ---------------- Manufacturing ---------------- */
.manufacturing {
  background: var(--blue-deep);
  color: var(--white);
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
  padding: 92px max(28px, calc((100vw - var(--max)) / 2));
}
.manufacturing-image img { width: 100%; border-radius: 14px; box-shadow: 0 24px 50px rgba(0,0,0,.35); }
.manufacturing-content h2 { margin: 0 0 18px; font-size: clamp(28px, 3.4vw, 44px); line-height: 1.25; }
.manufacturing-content > p { color: rgba(255,255,255,.72); margin: 0 0 34px; }
.manufacturing-content dl { display: flex; flex-direction: column; gap: 20px; margin: 0 0 34px; }
.manufacturing-content dl div { display: grid; grid-template-columns: 130px 1fr; gap: 18px; align-items: baseline; border-top: 1px solid rgba(255,255,255,.16); padding-top: 16px; }
.manufacturing-content dt { font-family: var(--mono); font-size: 12px; letter-spacing: 2px; color: var(--lime); }
.manufacturing-content dd { margin: 0; color: rgba(255,255,255,.85); font-size: 15px; }
.manufacturing-content .text-link { margin-bottom: 22px; }

/* ---------------- Quality / certificates ---------------- */
.quality-heading { display: flex; justify-content: space-between; align-items: end; gap: 40px; margin-bottom: 34px; }
.quality-heading p { max-width: 520px; }
.quality-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 40px;
}
.quality-summary div { background: var(--sky); border-radius: 10px; padding: 20px 22px; display: flex; flex-direction: column; gap: 6px; }
.quality-summary strong { font-size: 13px; letter-spacing: 1.5px; color: var(--blue); }
.quality-summary span { font-size: 13.5px; color: var(--muted); }

.certificate-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.certificate-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: var(--white);
  display: flex; flex-direction: column;
  transition: transform .25s ease, box-shadow .25s ease;
}
.certificate-card:hover { transform: translateY(-6px); box-shadow: 0 18px 40px rgba(10, 143, 71, 0.10); }
.certificate-card .cert-thumb {
  position: relative;
  background: var(--sky);
  aspect-ratio: 3 / 2;
  display: grid; place-items: center;
  padding: 26px;
}
.cert-thumb .cert-badge {
  width: 76px; height: 76px;
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: 30px; font-weight: 800;
}
.cert-badge.b-blue { background: var(--blue); color: var(--lime); }
.cert-badge.b-lime { background: var(--lime); color: var(--blue-deep); }
.cert-badge.b-sky { background: #bfe0f5; color: var(--blue); }
.cert-thumb .view-original {
  position: absolute; right: 14px; bottom: 14px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 1px;
  color: var(--blue);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 6px 12px;
}
.certificate-card h3 { margin: 0; padding: 18px 20px 4px; font-size: 17px; letter-spacing: .5px; }
.certificate-card p { margin: 0; padding: 0 20px 20px; color: var(--muted); font-size: 13.5px; }

/* ---------------- OEM process ---------------- */
.oem { background: var(--sky); }
.oem-title { display: flex; justify-content: space-between; align-items: end; gap: 40px; margin-bottom: 46px; }
.oem-title p { max-width: 520px; }
.process-list {
  list-style: none;
  margin: 0; padding: 0;
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.process-list li {
  counter-increment: step;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 28px 24px;
  position: relative;
}
.process-list li::before {
  content: "0" counter(step);
  font-family: var(--mono);
  color: var(--blue);
  font-size: 26px; font-weight: 800;
  display: block; margin-bottom: 14px;
}
.process-list h3 { margin: 0 0 8px; font-size: 17px; letter-spacing: .5px; }
.process-list p { margin: 0; color: var(--muted); font-size: 13.5px; }

/* ---------------- Facility ---------------- */
.facility {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.facility-copy .text-link { margin: 22px 0; }
.facility-images { display: grid; gap: 18px; }
.facility-images img { border-radius: 14px; box-shadow: 0 18px 40px rgba(10, 143, 71, 0.14); }
.facility-main { width: 100%; }
.facility-small { width: 100%; }

/* ---------------- Factory gallery ---------------- */
.factory-heading { display: flex; justify-content: space-between; align-items: end; gap: 40px; margin-bottom: 40px; }
.factory-heading p { max-width: 560px; }
.factory-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.factory-tile {
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: var(--white);
  transition: transform .25s ease, box-shadow .25s ease;
}
.factory-tile:hover { transform: translateY(-6px); box-shadow: 0 18px 40px rgba(10, 143, 71, 0.10); }
.factory-tile button {
  position: relative;
  display: block; width: 100%;
  border: 0; padding: 0;
  background: var(--sky);
}
.factory-tile button img { width: 100%; aspect-ratio: 3/2; object-fit: cover; }
.factory-tile-index {
  position: absolute; top: 14px; left: 14px;
  background: var(--blue);
  color: var(--white);
  font-family: var(--mono); font-size: 12px; font-weight: 700;
  padding: 6px 12px; border-radius: 20px;
}
.factory-tile-action {
  position: absolute; right: 14px; bottom: 14px;
  background: rgba(5, 61, 28, .85);
  color: var(--white);
  font-size: 12px; font-weight: 700;
  padding: 8px 14px; border-radius: 20px;
  display: inline-flex; align-items: center; gap: 6px;
}
.factory-tile h3 { margin: 0; padding: 18px 20px 4px; font-size: 17px; }
.factory-tile p { margin: 0; padding: 0 20px 20px; color: var(--muted); font-size: 13.5px; }
.factory-tile-media { cursor: zoom-in; }

/* ---------------- Image lightbox ---------------- */
.lightbox {
  position: fixed; inset: 0;
  z-index: 200;
  background: rgba(5, 61, 28, .88);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}
.lightbox.open { display: flex; }
.lightbox figure {
  margin: 0;
  max-width: 100%;
  max-height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.lightbox img {
  max-width: 100%;
  max-height: 78vh;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 20px 50px rgba(0,0,0,.5);
  background: #000;
}
.lightbox figcaption {
  color: rgba(255,255,255,.92);
  font-size: 14px;
  font-weight: 500;
}
.lightbox-close {
  position: absolute;
  top: 18px; right: 18px;
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.3);
  background: rgba(0,0,0,.4);
  color: #fff;
  font-size: 16px;
  cursor: pointer;
}
.lightbox-close:hover { background: rgba(0,0,0,.7); }

/* ---------------- Products ---------------- */
.products { background: var(--blue-deep); color: var(--white); }
.products-inner { max-width: var(--max); margin: auto; }
.products-heading { display: flex; justify-content: space-between; align-items: end; gap: 40px; margin-bottom: 44px; }
.products-heading h2 { color: var(--white); }
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.product-grid article {
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  color: var(--ink);
  transition: transform .25s ease, box-shadow .25s ease;
}
.product-grid article:hover { transform: translateY(-6px); box-shadow: 0 18px 40px rgba(0,0,0,.3); }
.catalogue-image { background: var(--sky); }
.catalogue-image img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
.product-grid h3 { margin: 0; padding: 18px 20px 4px; font-size: 18px; }
.product-grid p { margin: 0; padding: 0 20px 22px; color: var(--muted); font-size: 14px; }

/* ---------------- About ---------------- */
.about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.about-image img { width: 100%; border-radius: 14px; box-shadow: 0 18px 40px rgba(10, 143, 71, 0.14); }
.about-facts {
  list-style: none;
  margin: 26px 0 0; padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.about-facts li {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px 18px;
  display: flex; flex-direction: column; gap: 4px;
}
.about-facts strong { color: var(--blue); font-size: 22px; font-weight: 800; }
.about-facts span { color: var(--muted); font-size: 13px; }

/* ---------------- Film (replace with heritage video placeholder) ---------------- */
.film { background: var(--blue-deep); color: var(--white); }
.film-inner {
  max-width: var(--max); margin: auto;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 60px; align-items: center;
  padding: 92px 28px;
}
.film-copy p { color: rgba(255,255,255,.72); }
.film-copy .text-link { margin-top: 22px; color: var(--lime); }
.film-player {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 24px 50px rgba(0,0,0,.4);
  background: transparent;
  width: fit-content;
  max-width: 58vw;
  margin: 0 auto;
}
.film-player video {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 72vh;
  margin: 0 auto;
}
.empty-tip { color: var(--muted); font-size: 15px; grid-column: 1 / -1; padding: 30px 0; text-align: center; }
.film-player img { width: 100%; height: 100%; display: block; object-fit: cover; }
.film-player.film-nosrc { aspect-ratio: 16 / 9; }
.film-play {
  position: absolute; inset: 0;
  margin: auto;
  width: 84px; height: 84px;
  border-radius: 50%;
  border: 0;
  background: rgba(10, 143, 71, .9);
  color: var(--white);
  font-size: 26px;
  display: grid; place-items: center;
  transition: transform .25s ease, background .25s ease;
}
.film-play:hover { transform: scale(1.1); background: var(--blue); }

/* ---------------- Partners ---------------- */
.partners-heading { display: flex; justify-content: space-between; align-items: end; gap: 40px; margin-bottom: 40px; }
.partners-heading p { max-width: 560px; }
.partner-board {
  background: var(--sky);
  border-radius: 14px;
  padding: 44px 40px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  align-items: center;
}
.partner-chip {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 22px 16px;
  text-align: center;
  font-size: 15px; font-weight: 700; letter-spacing: 1px;
  color: var(--muted);
  transition: transform .2s ease, color .2s ease, border-color .2s ease;
}
.partner-chip:hover { transform: translateY(-4px); color: var(--blue); border-color: var(--blue); }
.partner-chip small { display: block; margin-top: 6px; font-weight: 400; font-size: 12px; color: var(--muted); }
.partner-chip .partner-logo {
  max-width: 100%;
  max-height: 56px;
  margin: 0 auto;
  display: block;
  object-fit: contain;
}

/* ---------------- Location / contact ---------------- */
.location {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: stretch;
}
.location-copy address {
  font-style: normal;
  margin: 26px 0 22px;
  color: var(--ink);
  font-size: 15.5px;
  line-height: 2;
}
.location-copy .text-link { margin-bottom: 22px; }
.location-map {
  border-radius: 14px;
  overflow: hidden;
  min-height: 380px;
  border: 1px solid var(--line);
  background: #e8f1fa;
  position: relative;
  isolation: isolate; /* 隔离子元素 z-index，避免悬浮按钮盖过顶部导航 */
  display: flex;
  align-items: center;
  justify-content: center;
}
.map-art { position: absolute; inset: 0; width: 100%; height: 100%; }
.jiuye-map { position: absolute; inset: 0; z-index: 1; }
.jiuye-map .leaflet-popup-content { font-family: var(--sans); font-size: 13px; line-height: 1.6; }
.jiuye-map .leaflet-popup-content strong { display: block; font-size: 14px; color: var(--blue); margin-bottom: 4px; }
/* 浮动按钮：高德一键导航（地图右下角） */
.map-fab {
  position: absolute;
  right: 16px;
  bottom: 16px;
  z-index: 400;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: var(--blue);
  color: var(--white);
  font-size: 14px;
  font-weight: 700;
  border-radius: 26px;
  box-shadow: 0 6px 18px rgba(10, 143, 71, .35);
  text-decoration: none;
  transition: transform .2s ease, background .2s ease;
  white-space: nowrap;
}
.map-fab:hover { background: var(--blue-deep); transform: translateY(-2px); }
.map-fab svg { display: block; }
.map-panel {
  position: relative;
  z-index: 2;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 26px 28px;
  margin: 24px;
  text-align: center;
  max-width: 380px;
  box-shadow: 0 14px 34px rgba(10, 143, 71, 0.14);
}
.map-panel strong { font-size: 16px; line-height: 1.8; color: var(--ink); }
.map-actions { display: flex; gap: 10px; margin-top: 16px; justify-content: center; flex-wrap: wrap; }
.map-btn {
  padding: 10px 16px;
  border: 1px solid var(--blue);
  border-radius: 6px;
  font-size: 13px; font-weight: 700;
  color: var(--blue);
  background: var(--white);
  transition: all .2s ease;
}
.map-btn.primary { background: var(--blue); color: var(--white); }
.map-btn.primary:hover { background: var(--blue-deep); transform: translateY(-2px); }
.map-btn:hover { border-color: var(--blue); background: var(--sky); }

.contact { background: var(--sky); }
.contact-inner {
  max-width: var(--max); margin: auto;
  padding: 92px 28px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
  align-items: center;
}
.contact .eyebrow { margin-bottom: 14px; }
.contact h2 { margin: 0 0 14px; font-size: clamp(28px, 3.4vw, 44px); }
.contact p { color: var(--muted); }
.contact-actions { display: flex; flex-direction: column; gap: 14px; align-items: flex-start; }

/* ---------------- Contact form / modal ---------------- */
.contact-form {
  background: var(--white);
  border-radius: 14px;
  padding: 34px;
  box-shadow: 0 18px 40px rgba(10, 143, 71, 0.10);
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.contact-form label { display: flex; flex-direction: column; gap: 7px; font-size: 13px; font-weight: 700; color: var(--ink); }
/* 电话行：区号 + 号码 + 类型标识 */
.phone-line { display: flex; gap: 8px; align-items: center; }
.phone-line select {
  flex: 0 0 118px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 14px;
  color: var(--ink);
  background: var(--white);
  outline: none;
}
.phone-line input { flex: 1; min-width: 0; }
.phone-type { font-size: 12px; font-weight: 700; white-space: nowrap; }
.phone-type.mobile { color: #1e8e5a; }
.phone-type.landline { color: #b0741f; }
.phone-err { font-size: 12px; font-weight: 400; color: #c0392b; }
.contact-form input, .contact-form select, .contact-form textarea {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 14.5px;
  color: var(--ink);
  background: var(--white);
  transition: border-color .2s ease, box-shadow .2s ease;
  width: 100%;
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(10, 143, 71, .12);
}
.contact-form textarea { min-height: 110px; resize: vertical; }
.contact-form .form-note { font-size: 12px; color: var(--muted); margin: 0; }
.form-success {
  text-align: center;
  padding: 30px 10px;
}
.form-success .ok {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: var(--lime);
  color: var(--blue-deep);
  font-size: 30px; font-weight: 800;
  display: grid; place-items: center;
  margin: 0 auto 16px;
}
.form-success h3 { margin: 0 0 8px; font-size: 20px; }
.form-success p { margin: 0; color: var(--muted); font-size: 14px; }

/* ---------------- Modal ---------------- */
.modal-overlay {
  position: fixed; inset: 0;
  z-index: 100;
  background: rgba(5, 61, 28, 0.55);
  display: none;
  align-items: center; justify-content: center;
  padding: 20px;
  backdrop-filter: blur(4px);
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--white);
  border-radius: 16px;
  max-width: 560px;
  width: 100%;
  max-height: 90vh;
  overflow: auto;
  padding: 34px;
  position: relative;
  box-shadow: 0 30px 70px rgba(0,0,0,.35);
}
.modal h3 { margin: 0 0 6px; font-size: 22px; }
.modal .modal-sub { margin: 0 0 20px; color: var(--muted); font-size: 14px; }
.modal-close {
  position: absolute; top: 14px; right: 14px;
  width: 34px; height: 34px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--muted);
  font-size: 16px;
  display: grid; place-items: center;
  transition: all .2s ease;
}
.modal-close:hover { background: var(--sky); color: var(--blue); }

/* ---------------- Footer ---------------- */
.site-footer {
  background: var(--blue-deep);
  color: rgba(255,255,255,.8);
  padding: 60px max(28px, calc((100vw - var(--max)) / 2)) 30px;
}
.footer-grid {
  max-width: var(--max);
  margin: auto;
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.14);
}
.footer-brand .brand { margin-bottom: 16px; }
.footer-brand .brand-mark { border-color: var(--lime); color: var(--lime); }
.footer-brand .brand strong { color: var(--white); }
.footer-brand p { margin: 0; font-size: 13.5px; color: rgba(255,255,255,.65); max-width: 320px; }
.footer-links { display: flex; flex-direction: column; gap: 12px; font-size: 14px; }
.footer-links h4 { margin: 0 0 8px; color: var(--white); font-size: 14px; letter-spacing: 2px; }
.footer-links a { color: rgba(255,255,255,.7); transition: color .2s ease; }
.footer-links a:hover { color: var(--lime); }
.footer-copyright {
  max-width: var(--max);
  margin: 28px auto 0;
  font-size: 12.5px;
  color: rgba(255,255,255,.45);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------------- Floating CTA ---------------- */
.whatsapp-float {
  position: fixed;
  right: 22px; bottom: 22px;
  z-index: 60;
  background: #25d366;
  color: #fff;
  border: 0;
  border-radius: 50%;
  width: 60px; height: 60px;
  font-size: 22px; font-weight: 800;
  display: grid; place-items: center;
  box-shadow: 0 10px 26px rgba(37, 211, 102, 0.4);
  transition: transform .2s ease;
}
.whatsapp-float:hover { transform: scale(1.08); }
.whatsapp-float .pulse {
  position: absolute; inset: 0;
  border-radius: 50%;
  background: #25d366;
  animation: pulse 2s ease-out infinite;
  z-index: -1;
}
@keyframes pulse {
  0% { transform: scale(1); opacity: .5; }
  100% { transform: scale(1.7); opacity: 0; }
}

/* ---------------- Reveal animations ---------------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; }
.reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; }

/* ---------------- Responsive ---------------- */
@media (max-width: 1080px) {
  .nav { gap: 16px; font-size: 12px; }
  .hero { min-height: 520px; padding: 48px max(20px, calc((100vw - var(--max)) / 2)) 64px; }
  .manufacturing, .facility, .about, .location, .film-inner, .contact-inner { grid-template-columns: 1fr; }
  .intro-grid, .quality-heading, .oem-title, .factory-heading, .products-heading, .partners-heading { grid-template-columns: 1fr; gap: 20px; align-items: start; }
  .category-grid, .certificate-grid, .factory-grid, .product-grid { grid-template-columns: repeat(2, 1fr); }
  .process-list { grid-template-columns: repeat(2, 1fr); }
  .proof-strip { grid-template-columns: repeat(2, 1fr); row-gap: 26px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* 多语言导航较长，≤1024px 时收进汉堡菜单 */
@media (max-width: 1024px) {
  .menu-button { display: flex; }
  .lang-switch select { padding: 6px 24px 6px 10px; font-size: 11.5px; }
  .nav {
    position: fixed;
    top: 76px; left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 20px 40px rgba(5, 61, 28, .12);
    padding: 10px 28px 22px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .25s ease, transform .25s ease;
    max-height: calc(100vh - 76px);
    overflow-y: auto;
  }
  .nav.open { transform: none; opacity: 1; pointer-events: auto; }
  .nav a { padding: 13px 0; width: 100%; border-bottom: 1px solid var(--sky); font-size: 14px; }
  .nav .nav-cta { margin-top: 16px; width: 100%; text-align: center; }
}

@media (max-width: 860px) {
  .site-header-inner { padding: 0 20px; }
  .hero { padding: 44px 20px 60px; }
  .hero h1 { font-size: clamp(32px, 8vw, 46px); }
  .section { padding: 68px 20px; }
  .category-grid, .certificate-grid, .factory-grid, .product-grid { grid-template-columns: 1fr; }
  .proof-strip { grid-template-columns: 1fr; padding: 32px 20px; }
  .proof-strip div { border-left: 0; padding-left: 0; border-top: 1px solid rgba(255,255,255,.18); padding-top: 18px; }
  .proof-strip div:first-child { border-top: 0; padding-top: 0; }
  .manufacturing, .film-inner { padding: 68px 20px; }
  .film-inner { grid-template-columns: 1fr; }
  .film-player { max-width: 100%; }
  .contact-inner { padding: 68px 20px; gap: 40px; }
  .partner-board { grid-template-columns: repeat(2, 1fr); padding: 30px 22px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .location-map { min-height: 300px; }
}

@media (max-width: 480px) {
  .brand small { display: none; }
  .hero-actions .button { width: 100%; justify-content: center; }
  .contact-form { padding: 24px 20px; }
}