@charset "UTF-8";
/* ============================================================================
   苷亮健 · 巴马甜茶  品牌官网样式 v1
   主色：长寿绿 #0E7A3C        辅色：茶金 #C9A24B
   设计基调：自然 · 长寿 · 东方 · 简洁
   ============================================================================ */

/* ---------------------------------------------------------------- 变量 */
:root {
  --brand:        #0E7A3C;
  --brand-dark:   #085C2C;
  --brand-deep:   #053F1E;
  --brand-mid:    #1B9450;
  --brand-soft:   #E9F5EE;
  --brand-line:   #CFE6D8;

  --gold:         #C9A24B;
  --gold-light:   #F4E9CE;
  --gold-deep:    #A67F32;

  --ink:          #14261C;
  --ink-2:        #33453A;
  --ink-3:        #5B6B61;
  --ink-4:        #8A968E;

  --bg:           #FFFFFF;
  --bg-soft:      #F7FAF8;
  --bg-cream:     #FBF8F1;
  --line:         #E7EEE9;
  --line-2:       #DCE6DF;

  --radius-s:  8px;
  --radius:    14px;
  --radius-l:  22px;
  --radius-xl: 32px;

  --shadow-s: 0 1px 2px rgba(20, 38, 28, .04), 0 3px 10px -4px rgba(20, 38, 28, .08);
  --shadow:   0 2px 6px rgba(20, 38, 28, .04), 0 14px 34px -14px rgba(20, 38, 28, .16);
  --shadow-l: 0 4px 12px rgba(20, 38, 28, .05), 0 28px 60px -24px rgba(20, 38, 28, .24);

  --container: 1240px;
  --header-h:  80px;
  --ease:      cubic-bezier(.22, .68, .28, 1);

  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  --font-num: "Optima", "Optima LT Std", "Palatino Linotype", Georgia, "Times New Roman", serif;
}

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

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-2);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body.y-lock { overflow: hidden; }

h1, h2, h3, h4, h5, h6 { margin: 0; font-weight: 600; color: var(--ink); line-height: 1.35; }
p { margin: 0; }
a { color: inherit; text-decoration: none; transition: color .2s; }
img { max-width: 100%; display: block; border: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; }
input, textarea, select { font-family: inherit; }

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

.y-container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
/* 头部容器更宽：容纳「logo + 9 个中文导航 + 热线 + 咨询」，正文仍保持 1240 */
.y-header .y-container,
.y-topbar .y-container { max-width: 1560px; }

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

/* ---------------------------------------------------------------- 通用按钮 */
.y-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 46px;
  padding: 0 26px;
  border-radius: 999px;
  font-size: 14.5px;
  font-weight: 500;
  white-space: nowrap;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .26s var(--ease);
}
.y-btn svg { flex: 0 0 auto; }

.y-btn-primary {
  background: linear-gradient(135deg, var(--brand-mid), var(--brand));
  color: #fff;
  box-shadow: 0 8px 22px -8px rgba(14, 122, 60, .55);
}
.y-btn-primary:hover {
  background: linear-gradient(135deg, var(--brand), var(--brand-dark));
  box-shadow: 0 12px 28px -10px rgba(14, 122, 60, .7);
  transform: translateY(-2px);
  color: #fff;
}

.y-btn-gold {
  background: linear-gradient(135deg, #D9B761, var(--gold));
  color: #3A2A08;
  box-shadow: 0 8px 22px -8px rgba(201, 162, 75, .6);
}
.y-btn-gold:hover { transform: translateY(-2px); color: #3A2A08; }

.y-btn-ghost {
  background: rgba(255, 255, 255, .1);
  border-color: rgba(255, 255, 255, .42);
  color: #fff;
  backdrop-filter: blur(6px);
}
.y-btn-ghost:hover { background: rgba(255, 255, 255, .2); color: #fff; border-color: #fff; }

.y-btn-line {
  background: #fff;
  border-color: var(--line-2);
  color: var(--ink);
}
.y-btn-line:hover { border-color: var(--brand); color: var(--brand); background: var(--brand-soft); }

.y-btn-sm { height: 38px; padding: 0 18px; font-size: 13.5px; }

/* ---------------------------------------------------------------- 顶部信息条 */
.y-topbar {
  background: var(--brand-deep);
  color: rgba(255, 255, 255, .78);
  font-size: 12.5px;
  height: 38px;
  display: flex;
  align-items: center;
  position: relative;
  z-index: 60;
}
.y-topbar .y-container { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.y-topbar-right { display: flex; align-items: center; gap: 22px; }
.y-topbar-right > * { display: inline-flex; align-items: center; gap: 6px; }
.y-topbar-right a:hover { color: #fff; }
.y-topbar-right b { font-weight: 600; color: var(--gold-light); letter-spacing: .3px; font-family: var(--font-num); font-size: 13.5px; }
.y-tb-welcome { letter-spacing: .2px; }

/* 锚点跳转补偿：吸顶头部高度，避免锚点内容被头部遮住 */
section[id], div[id].y-sec { scroll-margin-top: calc(var(--header-h) + 16px); }

/* ---------------------------------------------------------------- 头部 */
.y-header {
  position: relative;
  z-index: 900;   /* 必须高于首屏 hero（内部 z-index:2）与后续板块，否则下拉菜单被盖住 */
  background: #fff;
  border-bottom: 1px solid var(--line);
  transition: box-shadow .3s, background .3s;
}
.y-header.sticky.is-stuck {
  position: fixed;
  top: 0; left: 0; right: 0;
  box-shadow: 0 6px 26px -14px rgba(20, 38, 28, .28);
  animation: ySlideDown .34s var(--ease);
}
@keyframes ySlideDown { from { transform: translateY(-100%); } to { transform: none; } }

.y-header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  /* 注意：此处不能用 overflow:hidden —— 会裁掉导航下拉菜单。
     横向溢出改由 .y-header 的容器与 .y-nav-item > a 的 nowrap 控制。 */
  overflow: visible;
}
.y-brand-wrap { flex: 0 0 auto; min-width: 0; max-width: 320px; }
.y-brand { display: inline-flex; align-items: center; gap: 11px; }
.y-logo-img { display: block; height: 44px; width: auto; max-width: 330px; object-fit: contain; }
.y-logo-txt { display: flex; flex-direction: column; line-height: 1.2; }
.y-logo-txt b {
  font-size: 19px;
  font-weight: 700;
  color: var(--brand-deep);
  letter-spacing: 1.2px;
}
.y-logo-txt small {
  font-size: 10.5px;
  color: var(--ink-4);
  letter-spacing: .6px;
  margin-top: 3px;
  max-width: 230px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.y-brand-mark {
  width: 44px; height: 44px;
  border-radius: 13px;
  background: linear-gradient(140deg, var(--brand-mid), var(--brand-dark));
  color: #fff;
  display: grid; place-items: center;
  font-size: 20px; font-weight: 700;
  box-shadow: 0 6px 16px -8px rgba(14, 122, 60, .7);
}
.y-brand-txt { display: flex; flex-direction: column; line-height: 1.2; }
.y-brand-txt b { font-size: 19px; color: var(--brand-deep); letter-spacing: 1.2px; }
.y-brand-txt small { font-size: 10px; color: var(--ink-4); letter-spacing: 1.4px; margin-top: 3px; text-transform: uppercase; }
.y-brand-gap { display: none; }

/* 导航 —— 弹性自适应：字号/内边距由 site.js 依据真实宽度收敛，绝不溢出 */
.y-nav { flex: 0 0 auto; display: flex; justify-content: center; }
.y-nav-list {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
}
.y-nav-item { position: relative; flex: 0 0 auto; }
.y-nav-item > a {
  --nav-pad: 12px;
  display: flex; align-items: center; justify-content: center; gap: 3px;
  height: var(--header-h);
  padding: 0 var(--nav-pad);
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  white-space: nowrap;
  position: relative;
}
.y-nav-item > a > span:first-child { white-space: nowrap; }
.y-nav-item > a::after {
  content: "";
  position: absolute;
  left: var(--nav-pad); right: var(--nav-pad); bottom: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--brand);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .3s var(--ease);
}
.y-nav-item:hover > a, .y-nav-item.is-active > a { color: var(--brand); }
.y-nav-item:hover > a::after, .y-nav-item.is-active > a::after { transform: scaleX(1); }
.y-caret { display: inline-flex; opacity: .5; transition: transform .3s; }
.y-nav-item.has-drop:hover .y-caret { transform: rotate(180deg); opacity: 1; }

/* 下拉 */
.y-drop {
  position: absolute;
  top: calc(var(--header-h) - 6px);
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  min-width: 190px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-l);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transition: all .28s var(--ease);
  z-index: 1000;
}
.y-nav-item.has-drop:hover .y-drop,
.y-nav-item.has-drop:focus-within .y-drop {
  opacity: 1; visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.y-drop a {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 10px 14px;
  border-radius: 9px;
  font-size: 14px;
  color: var(--ink-2);
  transition: all .2s;
}
.y-drop a svg { opacity: 0; transition: all .2s; transform: translateX(-4px); color: var(--brand); }
.y-drop a:hover, .y-drop a.active { background: var(--brand-soft); color: var(--brand); }
.y-drop a:hover svg, .y-drop a.active svg { opacity: 1; transform: none; }

/* 头部右侧 */
.y-head-act { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.y-tel { display: inline-flex; align-items: center; gap: 8px; flex: 0 0 auto; }
.y-tel-ic {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: var(--brand-soft);
  color: var(--brand);
  display: grid; place-items: center;
  flex: 0 0 auto;
}
.y-tel-tx { display: flex; flex-direction: column; line-height: 1.2; }
.y-tel-tx small { font-size: 10px; color: var(--ink-4); letter-spacing: .3px; white-space: nowrap; }
.y-tel-tx b { font-size: 15.5px; color: var(--brand-deep); font-family: var(--font-num); letter-spacing: .2px; white-space: nowrap; }
.y-btn-cta {
  display: inline-flex; align-items: center; gap: 6px;
  height: 40px; padding: 0 18px;
  border-radius: 999px;
  border: 0;
  background: linear-gradient(135deg, var(--brand-mid), var(--brand));
  color: #fff;
  font-size: 13.5px; font-weight: 500;
  white-space: nowrap;
  flex: 0 0 auto;
  cursor: pointer;
  box-shadow: 0 8px 20px -9px rgba(14, 122, 60, .65);
  transition: all .26s var(--ease);
}
.y-btn-cta:hover { transform: translateY(-2px); box-shadow: 0 12px 26px -10px rgba(14, 122, 60, .8); }

.y-burger {
  display: none;
  width: 42px; height: 42px;
  border: 1px solid var(--line-2);
  border-radius: 11px;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

/* 移动抽屉 */
.y-nav-head, .y-nav-close, .y-nav-foot { display: none; }
.y-mask {
  position: fixed; inset: 0;
  background: rgba(8, 24, 15, .5);
  backdrop-filter: blur(2px);
  opacity: 0; visibility: hidden;
  transition: all .3s;
  z-index: 1990;   /* 高于悬浮客服(900)，低于抽屉(2000) */
}
.y-mask.on { opacity: 1; visibility: visible; }

/* 导航极紧凑模式：JS 判定 5 级降密度仍溢出时启用 */
html.is-nav-tight .y-tel { display: none; }
html.is-nav-tight .y-btn-cta { padding: 0 12px; font-size: 12.5px; }
html.is-nav-tight .y-logo-img { max-width: 150px; height: 56px; }

/* ---------------------------------------------------------------- 首屏轮播 */
.y-hero {
  position: relative;
  height: 620px;
  overflow: hidden;
  background: var(--brand-deep);
}
.y-hero-slide {
  position: absolute; inset: 0;
  opacity: 0;
  transition: opacity 1s var(--ease);
  pointer-events: none;
}
.y-hero-slide.on { opacity: 1; pointer-events: auto; }
.y-hero-bg {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transform: scale(1.06);
  transition: transform 7s linear;
}
.y-hero-slide.on .y-hero-bg { transform: scale(1); }
.y-hero-slide::after {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(96deg, rgba(4, 30, 15, .86) 0%, rgba(4, 30, 15, .62) 42%, rgba(4, 30, 15, .16) 74%, rgba(4, 30, 15, .3) 100%),
    linear-gradient(0deg, rgba(4, 30, 15, .5), transparent 46%);
}
.y-hero-inner {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  align-items: center;
}
.y-hero-txt { max-width: 660px; padding-bottom: 40px; }
.y-hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 16px 7px 12px;
  border-radius: 999px;
  background: rgba(201, 162, 75, .16);
  border: 1px solid rgba(201, 162, 75, .5);
  color: #F0DDA9;
  font-size: 12.5px;
  letter-spacing: 1.4px;
  margin-bottom: 22px;
  backdrop-filter: blur(4px);
}
.y-hero-tag i {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 3px rgba(201, 162, 75, .28);
}
.y-hero-h1 {
  font-size: 54px;
  line-height: 1.24;
  font-weight: 700;
  color: #fff;
  letter-spacing: 1.5px;
  margin-bottom: 20px;
  text-shadow: 0 2px 24px rgba(0, 0, 0, .22);
}
.y-hero-sub {
  font-size: 17px;
  color: rgba(255, 255, 255, .82);
  letter-spacing: .6px;
  margin-bottom: 34px;
  max-width: 540px;
}
.y-hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.y-hero-slide .y-hero-tag,
.y-hero-slide .y-hero-h1,
.y-hero-slide .y-hero-sub,
.y-hero-slide .y-hero-btns {
  opacity: 0;
  transform: translateY(24px);
}
.y-hero-slide.on .y-hero-tag  { animation: yHeroUp .8s var(--ease) .1s forwards; }
.y-hero-slide.on .y-hero-h1   { animation: yHeroUp .8s var(--ease) .24s forwards; }
.y-hero-slide.on .y-hero-sub  { animation: yHeroUp .8s var(--ease) .38s forwards; }
.y-hero-slide.on .y-hero-btns { animation: yHeroUp .8s var(--ease) .52s forwards; }
@keyframes yHeroUp { to { opacity: 1; transform: none; } }

/* 轮播控制 */
.y-hero-ctrl {
  position: absolute;
  left: 50%; bottom: 46px;
  transform: translateX(-50%);
  width: 100%; max-width: var(--container);
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 18px;
  z-index: 4;
}
.y-hero-dots { display: flex; gap: 10px; align-items: center; }
.y-hero-dot {
  width: 34px; height: 3px;
  border-radius: 3px;
  border: 0; padding: 0;
  background: rgba(255, 255, 255, .34);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: background .3s;
}
.y-hero-dot.on { background: rgba(255, 255, 255, .3); width: 62px; }
.y-hero-dot.on::after {
  content: "";
  position: absolute; inset: 0;
  background: var(--gold);
  transform-origin: left;
  animation: yDot .1s linear;
}
.y-hero-dot.on.run::after { animation: yDotFill 6s linear forwards; }
@keyframes yDot { from { transform: scaleX(0); } to { transform: scaleX(0); } }
@keyframes yDotFill { from { transform: scaleX(0); } to { transform: scaleX(1); } }
.y-hero-count {
  font-family: var(--font-num);
  color: rgba(255, 255, 255, .68);
  font-size: 14px;
  letter-spacing: 2px;
  margin-left: auto;
}
.y-hero-count b { color: #fff; font-size: 20px; font-weight: 600; }

/* 首屏底部数据条 */
.y-hero-stats {
  position: relative;
  z-index: 5;
  margin-top: -58px;
  margin-bottom: 0;
}
.y-stats-card {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: #fff;
  border-radius: var(--radius-l);
  box-shadow: var(--shadow-l);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .8);
}
.y-stat {
  padding: 26px 22px;
  text-align: center;
  position: relative;
}
.y-stat + .y-stat::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 1px; height: 44px;
  background: var(--line);
}
.y-stat-num {
  font-family: var(--font-num);
  font-size: 40px;
  line-height: 1;
  font-weight: 600;
  color: var(--brand);
  letter-spacing: -.5px;
}
.y-stat-num i { font-size: 20px; font-style: normal; margin-left: 2px; color: var(--gold); }
.y-stat-label {
  margin-top: 9px;
  font-size: 13.5px;
  color: var(--ink-3);
  letter-spacing: .6px;
}

/* ---------------------------------------------------------------- 通用区块 */
.y-sec { padding: 92px 0; position: relative; }
.y-sec.bg-soft  { background: var(--bg-soft); }
.y-sec.bg-white { background: #fff; }
.y-sec.bg-cream { background: var(--bg-cream); }
.y-sec.bg-dark  { background: linear-gradient(140deg, #07331A 0%, #0A5227 56%, #0C6631 100%); }

.y-sec-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 52px;
}
.y-sec-head.is-left { text-align: left; margin-left: 0; }
.y-sec-en {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--gold-deep);
  text-transform: uppercase;
  font-family: var(--font-num);
  font-weight: 600;
  margin-bottom: 12px;
}
.y-sec-en::before, .y-sec-en::after {
  content: "";
  width: 22px; height: 1px;
  background: var(--gold);
  opacity: .6;
}
.y-sec-en.no-line::before, .y-sec-en.no-line::after { display: none; }
.y-sec-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 1px;
  line-height: 1.3;
}
.y-sec-title em { font-style: normal; color: var(--brand); }
.y-sec-desc {
  margin-top: 16px;
  font-size: 15px;
  color: var(--ink-3);
  line-height: 1.85;
}
.y-sec-more { margin-top: 40px; text-align: center; }

.y-sec.bg-dark .y-sec-title,
.y-sec.bg-dark h2, .y-sec.bg-dark h3 { color: #fff; }
.y-sec.bg-dark .y-sec-desc { color: rgba(255, 255, 255, .66); }
.y-sec.bg-dark .y-sec-en { color: var(--gold); }

/* ---------------------------------------------------------------- 关于 */
.y-about-grid {
  display: grid;
  grid-template-columns: 1.02fr 1fr;
  gap: 64px;
  align-items: center;
}
.y-about-media { position: relative; }
.y-about-photo {
  border-radius: var(--radius-l);
  overflow: hidden;
  /* 与原图比例一致（652×405 ≈ 1.61），后台换成任意比例图都不裁字 */
  aspect-ratio: 652 / 405;
  background: var(--bg-soft);
  box-shadow: var(--shadow-l);
  position: relative;
}
.y-about-photo img {
  width: 100%; height: 100%;
  object-fit: contain;      /* 完整显示：宣传图/海报类图片不被裁切 */
  object-position: center;
  transition: transform 1s var(--ease);
}
.y-about-photo img.is-photo { object-fit: cover; }  /* 普通实拍图走铺满 */
.y-about-media:hover .y-about-photo img { transform: scale(1.04); }
.y-about-badge {
  position: absolute;
  right: -18px; bottom: 34px;
  background: linear-gradient(140deg, var(--brand-mid), var(--brand-dark));
  color: #fff;
  border-radius: var(--radius);
  padding: 20px 24px;
  box-shadow: 0 20px 40px -18px rgba(5, 63, 30, .7);
  text-align: center;
  min-width: 132px;
}
.y-about-badge b { display: block; font-family: var(--font-num); font-size: 34px; line-height: 1; font-weight: 600; }
.y-about-badge b i { font-style: normal; font-size: 16px; }
.y-about-badge span { display: block; margin-top: 6px; font-size: 12px; color: rgba(255, 255, 255, .75); letter-spacing: 1px; }
.y-about-deco {
  position: absolute;
  left: -20px; top: -20px;
  width: 120px; height: 120px;
  border: 1px solid var(--gold);
  border-radius: var(--radius-l);
  opacity: .38;
  pointer-events: none;
}
.y-about-body .y-sec-head { margin-bottom: 26px; }
.y-about-body .y-sec-title { font-size: 34px; }
.y-about-p {
  font-size: 15px;
  color: var(--ink-3);
  line-height: 1.95;
  margin-bottom: 26px;
}
.y-about-points {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 22px;
  margin-bottom: 32px;
}
.y-apt {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--ink-2);
}
.y-apt i {
  flex: 0 0 auto;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--brand-soft);
  color: var(--brand);
  display: grid; place-items: center;
  margin-top: 3px;
}
.y-about-acts { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------------------------------------------------------------- 产品中心 */
.y-prod-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
}
.y-prod {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  overflow: hidden;
  transition: all .36s var(--ease);
  display: flex;
  flex-direction: column;
}
.y-prod:hover {
  transform: translateY(-8px);
  border-color: var(--brand-line);
  box-shadow: 0 28px 52px -26px rgba(14, 122, 60, .34);
}
.y-prod-media {
  position: relative;
  aspect-ratio: 1 / 1;
  background: linear-gradient(160deg, #F7FAF8, #EDF4EF);
  overflow: hidden;
  display: grid;
  place-items: center;
  padding: 22px;
}
.y-prod-media img {
  width: 100%; height: 100%;
  object-fit: contain;
  transition: transform .6s var(--ease);
}
.y-prod:hover .y-prod-media img { transform: scale(1.08); }
.y-prod-badge {
  position: absolute;
  left: 14px; top: 14px;
  padding: 4px 11px;
  border-radius: 999px;
  background: linear-gradient(135deg, #D9B761, var(--gold));
  color: #3A2A08;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .4px;
}
.y-prod-body { padding: 20px 22px 24px; flex: 1 1 auto; display: flex; flex-direction: column; }
.y-prod-model {
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 1.6px;
  color: var(--gold-deep);
  text-transform: uppercase;
  margin-bottom: 6px;
}
.y-prod-name {
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.45;
  transition: color .2s;
}
.y-prod:hover .y-prod-name { color: var(--brand); }
.y-prod-sum {
  margin-top: 10px;
  font-size: 13px;
  color: var(--ink-3);
  line-height: 1.72;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 45px;
}
.y-prod-foot {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.y-prod-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 13px;
  color: var(--brand);
  font-weight: 500;
}
.y-prod-link svg { transition: transform .26s; }
.y-prod:hover .y-prod-link svg { transform: translateX(4px); }
.y-prod-ask {
  font-size: 12.5px;
  color: var(--ink-4);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.y-prod-ask:hover { color: var(--gold-deep); }

/* 产品体系（大图横条） */
.y-series {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-radius: var(--radius-l);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.y-series-item {
  position: relative;
  min-height: 340px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 28px 26px;
  overflow: hidden;
  color: #fff;
}
.y-series-item img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .8s var(--ease);
}
.y-series-item::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(4, 34, 17, .9) 0%, rgba(4, 34, 17, .42) 46%, rgba(4, 34, 17, .12) 100%);
}
.y-series-item:hover img { transform: scale(1.06); }
.y-series-in { position: relative; z-index: 2; }
.y-series-idx {
  font-family: var(--font-num);
  font-size: 13px;
  color: var(--gold);
  letter-spacing: 2px;
  margin-bottom: 8px;
}
.y-series-name { font-size: 20px; font-weight: 600; color: #fff; margin-bottom: 8px; }
.y-series-desc { font-size: 13px; color: rgba(255, 255, 255, .72); line-height: 1.7; }
.y-series-line {
  width: 0; height: 2px;
  background: var(--gold);
  margin-top: 14px;
  transition: width .4s var(--ease);
}
.y-series-item:hover .y-series-line { width: 48px; }

/* ---------------------------------------------------------------- 核心优势 */
.y-feat-wrap { position: relative; }
.y-feat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.y-feat {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  padding: 34px 26px 30px;
  position: relative;
  overflow: hidden;
  transition: all .34s var(--ease);
}
.y-feat::before {
  content: "";
  position: absolute;
  left: 0; top: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--brand-mid), var(--gold));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .42s var(--ease);
}
.y-feat:hover {
  transform: translateY(-6px);
  box-shadow: 0 26px 48px -26px rgba(14, 122, 60, .3);
  border-color: var(--brand-line);
}
.y-feat:hover::before { transform: scaleX(1); }
.y-feat-ic {
  width: 60px; height: 60px;
  border-radius: 18px;
  background: var(--brand-soft);
  color: var(--brand);
  display: grid; place-items: center;
  margin-bottom: 20px;
  transition: all .34s var(--ease);
}
.y-feat:hover .y-feat-ic {
  background: linear-gradient(140deg, var(--brand-mid), var(--brand-dark));
  color: #fff;
  transform: rotate(-6deg) scale(1.05);
}
.y-feat-en {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 1.8px;
  color: var(--gold-deep);
  margin-bottom: 7px;
  text-transform: uppercase;
}
.y-feat-name { font-size: 18px; font-weight: 600; color: var(--ink); }
.y-feat-idx {
  position: absolute;
  right: 20px; top: 14px;
  font-family: var(--font-num);
  font-size: 46px;
  font-weight: 700;
  color: var(--brand-soft);
  line-height: 1;
  pointer-events: none;
}

/* ---------------------------------------------------------------- 应用领域 */
.y-apply-track {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
  padding: 4px 0 18px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.y-apply-track::-webkit-scrollbar { display: none; }
.y-apply {
  flex: 0 0 268px;
  scroll-snap-align: start;
  position: relative;
  border-radius: var(--radius-l);
  overflow: hidden;
  aspect-ratio: 3 / 3.7;
  background: #E8F1EB;
  box-shadow: var(--shadow-s);
  transition: all .36s var(--ease);
}
.y-apply:hover { box-shadow: var(--shadow-l); transform: translateY(-6px); }
.y-apply img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.y-apply:hover img { transform: scale(1.07); }
.y-apply::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(4, 34, 17, .82), rgba(4, 34, 17, .06) 62%);
}
.y-apply-in {
  position: absolute;
  left: 22px; right: 22px; bottom: 22px;
  z-index: 2;
  color: #fff;
}
.y-apply-name { font-size: 17px; font-weight: 600; letter-spacing: .4px; }
.y-apply-num {
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 2px;
  color: var(--gold);
  margin-bottom: 6px;
}
.y-slider-arrows { display: flex; gap: 10px; justify-content: center; margin-top: 26px; }
.y-arrow {
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid var(--line-2);
  background: #fff;
  color: var(--ink-2);
  display: grid; place-items: center;
  cursor: pointer;
  transition: all .24s;
}
.y-arrow:hover { background: var(--brand); border-color: var(--brand); color: #fff; transform: translateY(-2px); }

/* ---------------------------------------------------------------- 专家团队 */
.y-team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.y-team {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  overflow: hidden;
  transition: all .34s var(--ease);
  display: flex;
  flex-direction: column;
}
.y-team:hover { transform: translateY(-6px); box-shadow: 0 28px 50px -28px rgba(20, 38, 28, .28); }
.y-team-media {
  aspect-ratio: 1 / 1.06;
  background: linear-gradient(160deg, #F2F7F4, #E4EFE8);
  overflow: hidden;
  position: relative;
}
.y-team-media img { width: 100%; height: 100%; object-fit: cover; object-position: top center; transition: transform .7s var(--ease); }
.y-team:hover .y-team-media img { transform: scale(1.05); }
.y-team-body { padding: 22px 24px 26px; text-align: center; }
.y-team-name { font-size: 19px; font-weight: 600; color: var(--ink); }
.y-team-title {
  display: inline-block;
  margin-top: 9px;
  padding: 4px 14px;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand);
  font-size: 12.5px;
  letter-spacing: .3px;
}
.y-team-org {
  margin-top: 12px;
  font-size: 13px;
  color: var(--ink-4);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

/* ---------------------------------------------------------------- 案例 / 基地 */
.y-case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 26px;
}
.y-case {
  position: relative;
  border-radius: var(--radius-l);
  overflow: hidden;
  aspect-ratio: 4 / 3.1;
  display: block;
  box-shadow: var(--shadow-s);
}
.y-case img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.y-case:hover img { transform: scale(1.07); }
.y-case::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(4, 34, 17, .88), rgba(4, 34, 17, .1) 58%, transparent);
}
.y-case-in {
  position: absolute;
  left: 24px; right: 24px; bottom: 24px;
  z-index: 2;
  color: #fff;
}
.y-case-loc {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--gold-light);
  margin-bottom: 8px;
  letter-spacing: .4px;
}
.y-case-name { font-size: 18px; font-weight: 600; color: #fff; line-height: 1.45; }
.y-case-sum {
  margin-top: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, .72);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: all .36s var(--ease);
}
.y-case:hover .y-case-sum { max-height: 60px; opacity: 1; margin-top: 10px; }

/* ---------------------------------------------------------------- 新闻 */
.y-news-grid {
  display: grid;
  grid-template-columns: 1.12fr 1fr;
  gap: 44px;
  align-items: start;
}
.y-news-hero {
  display: block;
  border-radius: var(--radius-l);
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-s);
  transition: all .34s var(--ease);
}
.y-news-hero:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.y-news-hero-media { aspect-ratio: 16 / 10; overflow: hidden; background: #EDF3EF; }
.y-news-hero-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.y-news-hero:hover .y-news-hero-media img { transform: scale(1.05); }
.y-news-hero-body { padding: 26px 28px 28px; }
.y-news-date-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--gold-deep);
  font-family: var(--font-num);
  letter-spacing: .6px;
  margin-bottom: 12px;
}
.y-news-hero-title {
  font-size: 22px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.48;
  transition: color .2s;
}
.y-news-hero:hover .y-news-hero-title { color: var(--brand); }
.y-news-hero-sum {
  margin-top: 12px;
  font-size: 14px;
  color: var(--ink-3);
  line-height: 1.8;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.y-news-list { display: flex; flex-direction: column; }
.y-news-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px dashed var(--line-2);
  transition: all .3s;
}
.y-news-item:first-child { padding-top: 0; }
.y-news-item:hover { transform: translateX(4px); }
.y-news-date {
  flex: 0 0 auto;
  width: 66px;
  text-align: center;
  border-right: 1px solid var(--line);
  padding-right: 18px;
}
.y-news-date b {
  display: block;
  font-family: var(--font-num);
  font-size: 27px;
  line-height: 1;
  color: var(--brand);
  font-weight: 600;
}
.y-news-date span { display: block; margin-top: 5px; font-size: 11.5px; color: var(--ink-4); letter-spacing: .4px; }
.y-news-txt { flex: 1 1 auto; min-width: 0; }
.y-news-title {
  font-size: 15.5px;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color .2s;
}
.y-news-item:hover .y-news-title { color: var(--brand); }
.y-news-meta { margin-top: 7px; font-size: 12px; color: var(--ink-4); display: flex; gap: 14px; }

/* ---------------------------------------------------------------- 联系 / CTA */
.y-cta { position: relative; overflow: hidden; }
.y-cta::before {
  content: "";
  position: absolute;
  right: -140px; top: -140px;
  width: 460px; height: 460px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201, 162, 75, .18), transparent 68%);
}
.y-cta::after {
  content: "";
  position: absolute;
  left: -120px; bottom: -180px;
  width: 420px; height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(27, 148, 80, .26), transparent 70%);
}
.y-cta-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 460px;
  gap: 60px;
  align-items: center;
}
.y-cta-left { min-width: 0; }
.y-cta-left .y-sec-title { color: #fff; font-size: 38px; }
.y-cta-left .y-sec-desc { color: rgba(255, 255, 255, .68); }
.y-cta-ways {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 34px;
}
.y-cta-way {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .12);
  transition: all .26s;
}
.y-cta-way:hover { background: rgba(255, 255, 255, .12); border-color: rgba(201, 162, 75, .5); }
.y-cta-way i {
  flex: 0 0 auto;
  width: 36px; height: 36px;
  border-radius: 10px;
  background: rgba(201, 162, 75, .16);
  color: var(--gold);
  display: grid; place-items: center;
}
.y-cta-way-tx { min-width: 0; }
.y-cta-way-tx small { display: block; font-size: 11.5px; color: rgba(255, 255, 255, .5); letter-spacing: .6px; }
.y-cta-way-tx b {
  display: block;
  margin-top: 2px;
  font-size: 14.5px;
  color: #fff;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.y-cta-way-tx b.num { font-family: var(--font-num); font-size: 16.5px; letter-spacing: .4px; }

.y-cta-form {
  background: #fff;
  border-radius: var(--radius-l);
  padding: 34px 32px 32px;
  box-shadow: 0 34px 70px -30px rgba(0, 0, 0, .5);
}
.y-cta-form h3 { font-size: 20px; margin-bottom: 6px; }
.y-cta-form > p { font-size: 13px; color: var(--ink-4); margin-bottom: 22px; }
.y-form-row { position: relative; margin-bottom: 14px; }
.y-form-row input,
.y-form-row textarea,
.y-form-row select {
  width: 100%;
  height: 46px;
  padding: 0 15px;
  border: 1px solid var(--line-2);
  border-radius: 11px;
  background: var(--bg-soft);
  font-size: 14px;
  color: var(--ink);
  outline: none;
  transition: all .22s;
}
.y-form-row textarea { height: 96px; padding: 12px 15px; resize: vertical; line-height: 1.7; }
.y-form-row input:focus,
.y-form-row textarea:focus,
.y-form-row select:focus {
  border-color: var(--brand);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(14, 122, 60, .08);
}
.y-form-row input::placeholder, .y-form-row textarea::placeholder { color: #A8B4AC; }
.y-form-submit {
  width: 100%;
  height: 48px;
  border: 0;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--brand-mid), var(--brand));
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all .26s var(--ease);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 10px 24px -10px rgba(14, 122, 60, .65);
}
.y-form-submit:hover { transform: translateY(-2px); box-shadow: 0 14px 30px -12px rgba(14, 122, 60, .8); }
.y-form-note { margin-top: 12px; font-size: 12px; color: var(--ink-4); text-align: center; }

/* ---------------------------------------------------------------- 友情链接 */
.y-brands { padding: 44px 0; background: var(--bg-soft); border-top: 1px solid var(--line); }
.y-brands-head {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}
.y-brands-head h3 { font-size: 15.5px; font-weight: 600; color: var(--ink); white-space: nowrap; }
.y-brands-head .ln { flex: 1 1 auto; height: 1px; background: var(--line-2); }
.y-brands-track {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  scrollbar-width: none;
  padding-bottom: 4px;
}
.y-brands-track::-webkit-scrollbar { display: none; }
.brand-chip {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--line);
  font-size: 13.5px;
  color: var(--ink-3);
  white-space: nowrap;
  transition: all .24s;
}
.brand-chip img { height: 22px; width: auto; object-fit: contain; }
.brand-chip:hover { border-color: var(--brand); color: var(--brand); background: var(--brand-soft); }

/* ---------------------------------------------------------------- 页脚 */
.y-footer {
  background: linear-gradient(160deg, #061F11 0%, #082C18 52%, #07331A 100%);
  color: rgba(255, 255, 255, .6);
  font-size: 13.5px;
  position: relative;
  overflow: hidden;
}
.y-footer::before {
  content: "";
  position: absolute;
  right: -160px; top: -160px;
  width: 520px; height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(27, 148, 80, .16), transparent 70%);
  pointer-events: none;
}
.y-foot-main {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.25fr;
  gap: 48px;
  padding: 66px 0 46px;
}
.y-foot-brand p { margin: 18px 0 22px; line-height: 1.9; color: rgba(255, 255, 255, .46); font-size: 13px; }
.y-foot-tel small { display: block; font-size: 11.5px; color: rgba(255, 255, 255, .4); letter-spacing: 1px; margin-bottom: 4px; }
.y-foot-tel b { font-family: var(--font-num); font-size: 28px; letter-spacing: .5px; font-weight: 600; }
.y-foot-col h4 {
  font-size: 14.5px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 12px;
}
.y-foot-col h4::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 26px; height: 2px;
  background: var(--gold);
  border-radius: 2px;
}
.y-foot-col > a {
  display: block;
  margin-bottom: 11px;
  color: rgba(255, 255, 255, .52);
  font-size: 13.5px;
  transition: all .22s;
}
.y-foot-col > a:hover { color: var(--gold-light); transform: translateX(3px); }
.fc-row {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  margin-bottom: 13px;
  color: rgba(255, 255, 255, .52);
  font-size: 13px;
  line-height: 1.65;
}
.fc-row svg { flex: 0 0 auto; margin-top: 3px; color: var(--gold); opacity: .8; }

.y-foot-links {
  position: relative;
  z-index: 2;
  padding: 20px 0;
  border-top: 1px solid rgba(255, 255, 255, .08);
  font-size: 12.5px;
}
.y-foot-links .fl-row { display: flex; gap: 12px; align-items: flex-start; }
.y-foot-links .fl-row > span { flex: 0 0 auto; color: rgba(255, 255, 255, .38); }
.y-foot-links .fl-items { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.y-foot-links a { color: rgba(255, 255, 255, .5); }
.y-foot-links a:hover { color: var(--gold-light); }

.y-foot-bot {
  position: relative;
  z-index: 2;
  padding: 20px 0 26px;
  border-top: 1px solid rgba(255, 255, 255, .08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  font-size: 12.5px;
  color: rgba(255, 255, 255, .36);
  flex-wrap: wrap;
}
.fb-links { display: flex; gap: 18px; flex-wrap: wrap; }
.fb-links a:hover { color: rgba(255, 255, 255, .7); }

/* ---------------------------------------------------------------- 回到顶部 */
.back-top {
  position: fixed;
  right: 26px;
  bottom: 34px;
  width: 46px; height: 46px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--brand);
  display: grid; place-items: center;
  cursor: pointer;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all .3s var(--ease);
  z-index: 880;
}
.back-top.on { opacity: 1; visibility: visible; transform: none; }
.back-top:hover { background: var(--brand); color: #fff; border-color: var(--brand); }

/* ---------------------------------------------------------------- 响应式 */
/* 导航字号/内边距由 site.js 依据实际宽度动态收敛，此处只管断开溢出的次要元素 */
@media (max-width: 1440px) {
  .y-head-act { gap: 8px; }
}
@media (max-width: 1280px) {
  .y-logo-img { max-width: 160px; height: 60px; }
  .y-logo-txt b { font-size: 17px; }
  .y-logo-txt small { max-width: 150px; font-size: 10px; }
  .y-tel-tx small { display: none; }
  .y-tel-tx b { font-size: 14.5px; }
}

@media (max-width: 1200px) {
  :root { --container: 1080px; --header-h: 72px; }
  .y-tel { display: none; }
  .y-logo-txt small { max-width: 160px; }
  .y-hero { height: 540px; }
  .y-hero-h1 { font-size: 44px; }
  .y-sec { padding: 76px 0; }
  .y-sec-title { font-size: 31px; }
  .y-prod-grid { grid-template-columns: repeat(3, 1fr); gap: 22px; }
  .y-series { grid-template-columns: repeat(2, 1fr); }
  .y-feat-grid { grid-template-columns: repeat(2, 1fr); }
  .y-about-grid { gap: 44px; }
  .y-cta-grid { grid-template-columns: minmax(0, 1fr) 400px; gap: 40px; }
  .y-foot-main { gap: 34px; }
}

@media (max-width: 1024px) {
  .y-nav { display: none; }
  .y-burger { display: inline-flex; }
  .y-brand-gap { display: none; }
  .y-header-inner { justify-content: space-between; }

  /* 抽屉导航 */
  .y-nav {
    position: fixed;
    top: 0; right: 0;
    width: 320px;
    max-width: 86vw;
    height: 100vh;
    height: 100dvh;
    background: #fff;
    z-index: 2000;   /* 必须高于遮罩(1990)与右侧悬浮客服(900)，避免抽屉被压暗、被遮挡 */
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform .34s var(--ease);
    box-shadow: -20px 0 60px -30px rgba(0, 0, 0, .4);
    overflow-y: auto;
  }
  .y-nav.on { transform: none; }
  .y-nav-head {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 18px 20px;
    border-bottom: 1px solid var(--line);
    flex: 0 0 auto;
  }
  .y-nav-close {
    display: grid; place-items: center;
    margin-left: auto;
    width: 34px; height: 34px;
    border: 0; background: var(--bg-soft);
    border-radius: 9px;
    color: var(--ink-3);
    cursor: pointer;
  }
  .y-nav-list { display: block; padding: 8px 12px; flex: 1 1 auto; }
  .y-nav-item { border-bottom: 1px solid var(--line); }
  .y-nav-item:last-child { border-bottom: 0; }
  .y-nav-item > a {
    height: auto;
    padding: 15px 10px;
    font-size: 15.5px;
    justify-content: space-between;
  }
  .y-nav-item > a::after { display: none; }
  .y-nav-item.is-active > a { color: var(--brand); }
  .y-drop {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    box-shadow: none;
    border: 0;
    border-radius: 0;
    padding: 0 0 10px 10px;
    display: none;
  }
  .y-nav-item.has-drop:hover .y-drop,
  .y-nav-item.has-drop:focus-within .y-drop { transform: none; }
  .y-nav-item.open .y-drop { display: block; }
  .y-nav-item.open .y-caret { transform: rotate(180deg); }
  .y-drop a { padding: 10px 12px; font-size: 14px; background: transparent; }
  .y-drop a svg { display: none; }
  .y-nav-foot {
    display: block;
    padding: 16px 20px 26px;
    border-top: 1px solid var(--line);
    flex: 0 0 auto;
  }
  .y-nav-foot .tel {
    display: flex; align-items: center; justify-content: center; gap: 7px;
    margin-top: 12px;
    font-size: 15px;
    color: var(--brand);
    font-family: var(--font-num);
    font-weight: 600;
  }

  .y-hero { height: 470px; }
  .y-hero-h1 { font-size: 36px; }
  .y-hero-sub { font-size: 15px; }
  .y-stats-card { grid-template-columns: repeat(2, 1fr); }
  .y-stat:nth-child(3)::before { display: none; }
  .y-stat:nth-child(3), .y-stat:nth-child(4) { border-top: 1px solid var(--line); }
  .y-about-grid { grid-template-columns: minmax(0, 1fr); gap: 36px; }
  .y-about-media { max-width: 560px; }
  .y-news-grid { grid-template-columns: minmax(0, 1fr); gap: 30px; }
  .y-team-grid { grid-template-columns: repeat(3, 1fr); gap: 18px; }
  .y-case-grid { grid-template-columns: repeat(2, 1fr); }
  .y-cta-grid { grid-template-columns: minmax(0, 1fr); gap: 34px; }
  .y-cta-form { max-width: 520px; }
  .y-foot-main { grid-template-columns: 1fr 1fr; gap: 32px; }
  .y-sec { padding: 64px 0; }
  .y-sec-title { font-size: 27px; }
  .y-sec-head { margin-bottom: 40px; }
}

@media (max-width: 900px) {
  .y-tel { display: none; }
  .y-header-inner { gap: 12px; }
  .y-prod-grid { grid-template-columns: repeat(2, 1fr); }
  .y-team-grid { grid-template-columns: repeat(2, 1fr); }
  .y-series { grid-template-columns: minmax(0, 1fr); }
  .y-series-item { min-height: 240px; }
  .y-stat-num { font-size: 32px; }
  .y-hero-stats { margin-top: -44px; }
  .y-apply { flex-basis: 240px; }
}

@media (max-width: 768px) {
  .y-topbar { display: none; }
  .y-hero { height: 420px; }
  .y-hero-h1 { font-size: 28px; letter-spacing: .5px; }
  .y-hero-sub { font-size: 14px; margin-bottom: 26px; }
  .y-hero-tag { font-size: 11.5px; margin-bottom: 16px; padding: 6px 12px 6px 10px; }
  .y-hero-ctrl { bottom: 26px; }
  .y-hero-count { display: none; }
  .y-btn { height: 42px; padding: 0 20px; font-size: 13.5px; }
  .y-btn-cta { display: none; }
  .y-logo-img { height: 58px; }
  .y-logo-txt b { font-size: 16.5px; }
  .y-logo-txt small { display: none; }
  .y-container { padding: 0 18px; }
  .y-sec { padding: 52px 0; }
  .y-sec-title { font-size: 23px; }
  .y-sec-desc { font-size: 14px; margin-top: 12px; }
  .y-sec-head { margin-bottom: 32px; }
  /* 移动端：徽章缩到角落，避免遮挡图片主体 */
  .y-about-badge { right: 8px; bottom: 8px; padding: 8px 12px; min-width: 0; border-radius: 10px; }
  .y-about-badge b { font-size: 19px; }
  .y-about-badge b i { font-size: 11px; }
  .y-about-badge span { font-size: 9.5px; margin-top: 2px; letter-spacing: .4px; }
  .y-about-deco { display: none; }
  .y-about-points { grid-template-columns: 1fr; }
  .y-feat-grid { grid-template-columns: 1fr; }
  .y-feat { padding: 26px 22px; }
  .y-feat-ic { width: 52px; height: 52px; border-radius: 15px; margin-bottom: 16px; }
  .y-feat-idx { font-size: 38px; }
  .y-prod-grid { gap: 14px; }
  .y-prod-body { padding: 15px 15px 18px; }
  .y-prod-name { font-size: 15px; }
  .y-prod-sum { font-size: 12px; min-height: 41px; }
  .y-prod-media { padding: 14px; }
  .y-prod-ask { display: none; }
  .y-team-grid { grid-template-columns: 1fr; }
  .y-case-grid { grid-template-columns: 1fr; }
  .y-case-sum { max-height: 60px; opacity: 1; margin-top: 10px; }
  .y-news-hero-body { padding: 20px 20px 22px; }
  .y-news-hero-title { font-size: 18px; }
  .y-news-date { width: 56px; padding-right: 12px; }
  .y-news-date b { font-size: 22px; }
  .y-news-title { font-size: 14.5px; }
  .y-cta-ways { grid-template-columns: minmax(0, 1fr); }
  .y-cta-way-tx b { white-space: normal; overflow: visible; text-overflow: clip; line-height: 1.35; }
  .y-cta-left .y-sec-title { font-size: 26px; }
  .y-cta-form { padding: 26px 20px 24px; }
  .y-foot-main { grid-template-columns: 1fr; gap: 30px; padding: 44px 0 30px; }
  .y-foot-bot { flex-direction: column; align-items: flex-start; gap: 10px; }
  .y-stats-card { border-radius: var(--radius); }
  .y-stat { padding: 18px 12px; }
  .y-stat-num { font-size: 27px; }
  .y-stat-label { font-size: 12px; margin-top: 6px; }
  .y-stat-num i { font-size: 15px; }
  .y-apply { flex: 0 0 210px; }
  .back-top { display: none; }
  .y-slider-arrows { margin-top: 18px; }
  .y-arrow { width: 40px; height: 40px; }
}

@media (max-width: 420px) {
  .y-hero { height: 390px; }
  .y-hero-h1 { font-size: 24px; }
  .y-hero-btns .y-btn { flex: 1 1 auto; }
  .y-prod-grid { grid-template-columns: 1fr; }
  .y-prod-media { aspect-ratio: 4 / 3; }
  .y-prod-sum { min-height: 0; }
}

/* ---------------------------------------------------------------- 工具类 */
.y-empty {
  padding: 60px 20px;
  text-align: center;
  color: var(--ink-4);
  font-size: 14px;
}
.y-pager {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 46px;
  flex-wrap: wrap;
}
.y-pager a, .y-pager span {
  min-width: 40px; height: 40px;
  padding: 0 13px;
  border-radius: 10px;
  border: 1px solid var(--line-2);
  background: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--ink-2);
  transition: all .2s;
}
.y-pager a:hover { border-color: var(--brand); color: var(--brand); background: var(--brand-soft); }
.y-pager .on { background: var(--brand); border-color: var(--brand); color: #fff; }
.y-pager .dis { opacity: .42; pointer-events: none; }

/* 打印 */
@media print {
  .y-topbar, .y-header, .float-service, .back-top, .y-footer, .y-hero-ctrl { display: none !important; }
}

/* ================================================================
   首页专属补充（首屏轮播：无内容兜底 / 关于区统计 / 段落变体）
   ================================================================ */
.y-hero.is-empty {
  height: 560px;
  background:
    radial-gradient(1100px 480px at 78% 26%, rgba(201, 162, 75, .18), transparent 62%),
    linear-gradient(135deg, #053F1E 0%, #0A5227 52%, #0E7A3C 100%);
}
.y-hero.is-empty::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    repeating-linear-gradient(45deg, rgba(255, 255, 255, .028) 0 1px, transparent 1px 26px);
  pointer-events: none;
}
.y-hero.is-empty .y-hero-txt { opacity: 1; }
.y-hero.is-empty .y-hero-tag,
.y-hero.is-empty .y-hero-h1,
.y-hero.is-empty .y-hero-sub,
.y-hero.is-empty .y-hero-btns { opacity: 1; transform: none; animation: none; }

/* 关于区数据小条 */
.y-about-mini {
  display: flex;
  gap: 30px;
  padding: 20px 0 24px;
  margin-bottom: 26px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
}
.y-about-mini div b {
  display: block;
  font-family: var(--font-num);
  font-size: 28px;
  line-height: 1;
  color: var(--brand);
  font-weight: 600;
}
.y-about-mini div b i { font-style: normal; font-size: 14px; color: var(--gold); margin-left: 1px; }
.y-about-mini div span { display: block; margin-top: 6px; font-size: 12.5px; color: var(--ink-4); letter-spacing: .4px; }

/* 深色区文字反白工具 */
.y-sec.bg-dark .y-sec-en { color: var(--gold); }
.y-sec.bg-dark .y-sec-en::before,
.y-sec.bg-dark .y-sec-en::after { background: var(--gold); }

/* 联系表单提示 */
.y-form-msg { margin-top: 12px; font-size: 13px; }
.y-form-msg.ok  { color: var(--brand); }
.y-form-msg.err { color: #C2413A; }

/* ---------------------------------------------------------------- 修正：
   1) 首屏标题避免被断成两行以上
   2) 专家 / 案例 卡片文字在浅色背景上也清晰
   ---------------------------------------------------------------- */
.y-hero-h1 { max-width: 12em; word-break: break-word; }
@media (max-width: 768px) {
  .y-hero-h1 { max-width: 100%; font-size: 26px; line-height: 1.34; }
}
@media (max-width: 420px) {
  .y-hero-h1 { font-size: 23px; }
}

/* 专家卡片：文字区加白底描边，避免与图片混在一起 */
.y-team-body { background: #fff; position: relative; z-index: 2; }
.y-team-name { color: var(--ink); }
.y-team-org { color: var(--ink-4); }

/* 案例卡片：底部渐变加深，确保标题可读 */
.y-case::after {
  background: linear-gradient(0deg, rgba(4, 34, 17, .94) 0%, rgba(4, 34, 17, .62) 42%, rgba(4, 34, 17, .12) 74%, transparent 100%) !important;
}
.y-case-name { text-shadow: 0 1px 10px rgba(0, 0, 0, .45); }
.y-case-loc { text-shadow: 0 1px 8px rgba(0, 0, 0, .4); }

/* 应用领域卡片文字 */
.y-apply::after {
  background: linear-gradient(0deg, rgba(4, 34, 17, .92) 0%, rgba(4, 34, 17, .5) 42%, rgba(4, 34, 17, .04) 72%) !important;
}
.y-apply-name { text-shadow: 0 1px 10px rgba(0, 0, 0, .42); }

/* 产品体系卡片文字 */
.y-series-item::after {
  background: linear-gradient(0deg, rgba(4, 34, 17, .95) 0%, rgba(4, 34, 17, .6) 46%, rgba(4, 34, 17, .16) 100%) !important;
}

/* ---------------------------------------------------------------- 首屏 · 终版
   原站 banner 图已含完整文案与产品图，叠加卡片会遮挡。
   最终方案：文案贴右下、去掉毛玻璃底，仅用柔和暗角 + 细线装饰
   ---------------------------------------------------------------- */
.y-hero { height: 600px; }
.y-hero-slide::after {
  background:
    linear-gradient(88deg, rgba(4, 26, 13, .34) 0%, rgba(4, 26, 13, .06) 34%, rgba(4, 26, 13, .1) 56%, rgba(4, 26, 13, .62) 100%),
    linear-gradient(0deg, rgba(4, 26, 13, .52) 0%, transparent 40%) !important;
}
.y-hero-inner { align-items: flex-end; justify-content: flex-end; padding-bottom: 74px; }
.y-hero-txt {
  max-width: 400px;
  background: transparent !important;
  border: 0 !important;
  border-radius: 0 !important;
  backdrop-filter: none !important;
  box-shadow: none !important;
  padding: 0 0 0 26px !important;
  border-left: 2px solid var(--gold) !important;
  text-align: left;
}
.y-hero-tag { display: none; }
.y-hero-h1 {
  font-size: 27px !important;
  line-height: 1.42;
  letter-spacing: .8px;
  margin-bottom: 12px;
  text-shadow: 0 2px 16px rgba(0, 0, 0, .55);
}
.y-hero-sub {
  font-size: 13.5px;
  color: rgba(255, 255, 255, .82);
  margin-bottom: 22px;
  line-height: 1.78;
  text-shadow: 0 1px 10px rgba(0, 0, 0, .5);
}
.y-hero-btns { gap: 10px; }
.y-hero-btns .y-btn { height: 42px; padding: 0 20px; font-size: 13.5px; }
.y-hero-ctrl { bottom: 24px; }

@media (max-width: 1200px) {
  .y-hero { height: 540px; }
  .y-hero-h1 { font-size: 24px !important; }
  .y-hero-txt { max-width: 350px; }
}
@media (max-width: 1024px) {
  .y-hero { height: 470px; }
  .y-hero-inner { padding-bottom: 58px; }
  .y-hero-h1 { font-size: 21px !important; }
  .y-hero-txt { max-width: 320px; padding-left: 18px !important; }
}
@media (max-width: 768px) {
  /* banner 原图 1920×620（约 3.1:1），移动端按原比例完整显示，避免文字被裁 */
  .y-hero {
    /* 移动端裁切左右留白后按 2.15:1 显示：
       banner 主体（文字+产品）集中在画面中部，裁边不影响可读性 */
    height: auto !important;
    aspect-ratio: 2.15 / 1;
    min-height: 0;
  }
  .y-hero-bg { object-fit: cover; object-position: 42% center; }
  .y-hero-inner { padding-bottom: 12px; justify-content: flex-end; }
  .y-hero-slide::after {
    background: linear-gradient(0deg, rgba(4, 26, 13, .34) 0%, transparent 46%) !important;
  }
  .y-hero-txt { max-width: 100%; padding-left: 14px !important; }
  .y-hero-h1 { font-size: 15px !important; line-height: 1.4; margin-bottom: 6px; }
  .y-hero-sub { display: none; }
  .y-hero-btns { gap: 8px; }
  .y-hero-btns .y-btn { height: 32px; padding: 0 12px; font-size: 12px; }
  .y-hero-ctrl { bottom: 8px; padding: 0 14px; }
  .y-hero-dot { width: 16px; height: 3px; }
  .y-hero-dot.on { width: 26px; }
  .y-hero-count { display: none; }
}
@media (max-width: 420px) {
  .y-hero { aspect-ratio: 3.1 / 1; }
  .y-hero-h1 { font-size: 14px !important; }
  .y-hero-btns .y-btn { height: 30px; padding: 0 10px; font-size: 11.5px; }
}

/* 首屏按钮组（banner 自带文案时） */
.y-hero-txt.is-btns-only {
  border-left: 0 !important;
  padding-left: 0 !important;
  max-width: none;
}
.y-hero-txt.is-btns-only .y-hero-btns { justify-content: flex-end; }
@media (max-width: 768px) {
  .y-hero-txt.is-btns-only .y-hero-btns { justify-content: flex-start; }
}

/* ---------------------------------------------------------------- 案例 / 基地卡片 · 终版
   原站案例图多为带文字的实拍图，直接覆盖深色渐变后文字会撞。
   改为：图在下、文在上（白色卡片），彻底解决可读性
   ---------------------------------------------------------------- */
.y-case-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 26px; }
.y-case {
  display: flex !important;
  flex-direction: column;
  aspect-ratio: auto !important;
  border-radius: var(--radius-l);
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-s);
  transition: all .34s var(--ease);
}
.y-case:hover { transform: translateY(-6px); box-shadow: 0 28px 50px -28px rgba(20, 38, 28, .26); border-color: var(--brand-line); }
.y-case::after { display: none !important; }
.y-case-media {
  aspect-ratio: 16 / 10.6;
  overflow: hidden;
  background: #EDF3EF;
  position: relative;
}
.y-case-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.y-case:hover .y-case-media img { transform: scale(1.06); }
.y-case-in {
  position: static !important;
  left: auto; right: auto; bottom: auto;
  padding: 20px 22px 22px;
  color: var(--ink);
  background: #fff;
}
.y-case-loc {
  color: var(--gold-deep) !important;
  font-size: 12px;
  margin-bottom: 8px;
  text-shadow: none !important;
}
.y-case-name {
  color: var(--ink) !important;
  font-size: 17px;
  line-height: 1.5;
  text-shadow: none !important;
  transition: color .2s;
}
.y-case:hover .y-case-name { color: var(--brand); }
.y-case-sum {
  color: var(--ink-3) !important;
  max-height: 62px !important;
  opacity: 1 !important;
  margin-top: 9px !important;
  font-size: 13px;
  line-height: 1.7;
}
@media (max-width: 768px) {
  .y-case-media { aspect-ratio: 16 / 10; }
  .y-case-in { padding: 16px 18px 18px; }
  .y-case-name { font-size: 15.5px; }
}

/* CTA 表单标题区：与左侧标题顶部对齐 */
.y-cta-form h3 { font-size: 21px; letter-spacing: .5px; }
.y-cta-form > p { margin-bottom: 20px; }
.y-cta-grid { align-items: start; }
.y-cta-left { padding-top: 6px; }

/* CTA 区块底部留白收一点，避免与友情链接贴太近 */
.y-cta { padding-bottom: 78px; }
@media (max-width: 768px) { .y-cta { padding-bottom: 54px; } }
.y-foot-brand .y-brand img { flex: 0 0 auto; }