@charset "utf-8";
/* ==========================================================
   RailwayLP · Enterprise UI System v2
   方向：现代工业科技感 —— 克制留白 / 深空蓝 / 品牌橙仅作点缀
   纯 CSS，零依赖。所有类名以 ay- 为前缀，避免与原模板冲突。
   ========================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root {
  /* 品牌色（低频使用，只做强调） */
  --c-brand: #ff6a00;
  --c-brand-600: #ef5f00;
  --c-brand-300: #ffb27a;
  --c-brand-soft: #fff4ec;
  --c-brand-ring: rgba(255, 106, 0, .16);

  /* 深空蓝 */
  --c-ink-900: #06101e;
  --c-ink-800: #0b1728;
  --c-ink-700: #122a45;
  --c-ink-600: #1b3a5c;

  /* 文本 */
  --c-text: #0e1b2b;
  --c-text-2: #4b5b70;
  --c-text-3: #8a98ab;

  /* 面与线 */
  --c-bg: #ffffff;
  --c-bg-soft: #f5f8fc;
  --c-bg-mute: #eef3f9;
  --c-line: #e6ecf3;
  --c-line-2: #f0f4f9;

  /* 语义 */
  --c-ok: #0ea36b;
  --c-warn: #f5a524;
  --c-danger: #e5484d;

  /* 字体 */
  --f-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --f-num: ui-monospace, "SF Mono", Menlo, Consolas, "Courier New", monospace;

  /* 圆角 */
  --r-xs: 6px; --r-sm: 10px; --r-md: 14px; --r-lg: 20px; --r-pill: 999px;

  /* 阴影（多级、克制） */
  --sh-xs: 0 1px 2px rgba(12, 26, 43, .05);
  --sh-sm: 0 2px 10px rgba(12, 26, 43, .06);
  --sh-md: 0 10px 30px rgba(12, 26, 43, .08);
  --sh-lg: 0 24px 60px rgba(12, 26, 43, .12);
  --sh-brand: 0 12px 26px rgba(255, 106, 0, .24);

  /* 布局 */
  --wrap: 1200px;
  --gutter: 24px;
  --header-h: 80px;

  /* 动效 */
  --ease: cubic-bezier(.22, .68, .28, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --dur: .32s;
}

/* ---------- 2. 基础重置 ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; overflow-x: hidden; }
body {
  font-family: var(--f-sans);
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; transition: color .25s var(--ease); }
a:hover { color: var(--c-brand); }
img { max-width: 100%; display: block; border: 0; vertical-align: middle; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5 { font-weight: 600; line-height: 1.35; letter-spacing: -.01em; }
p { line-height: 1.85; }
input, textarea, button, select { font-family: inherit; font-size: inherit; outline: none; }
table { border-collapse: collapse; width: 100%; }
:focus-visible { outline: 2px solid var(--c-brand); outline-offset: 2px; }
::selection { background: var(--c-brand); color: #fff; }

/* ---------- 3. 布局 ---------- */
.ay-container { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.ay-section { padding: clamp(64px, 7vw, 104px) 0; }
.ay-section--soft { background: var(--c-bg-soft); }
.ay-section--tight { padding: clamp(40px, 4.5vw, 64px) 0; }
.ay-section--dark {
  position: relative; overflow: hidden; color: #fff;
  background: linear-gradient(150deg, var(--c-ink-900) 0%, var(--c-ink-700) 58%, var(--c-ink-900) 100%);
}
.ay-section--dark::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(120% 90% at 50% 0%, #000 0%, transparent 78%);
  mask-image: radial-gradient(120% 90% at 50% 0%, #000 0%, transparent 78%);
}
.ay-section--dark::after {
  content: ""; position: absolute; width: 760px; height: 760px; right: -220px; top: -300px;
  background: radial-gradient(circle, rgba(255, 106, 0, .17) 0%, transparent 62%);
  pointer-events: none;
}
.ay-section--dark > * { position: relative; z-index: 1; }

/* ---------- 4. 区块标题（左对齐 + 右侧更多） ---------- */
.ay-shead {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 32px; margin-bottom: 44px; position: relative;
  padding-bottom: 22px; border-bottom: 1px solid var(--c-line);
}
.ay-shead::after {
  content: ""; position: absolute; left: 0; bottom: -1px;
  width: 60px; height: 2px; background: var(--c-brand); border-radius: 2px;
}
.ay-shead__en {
  font-size: 12px; font-weight: 700; letter-spacing: .24em;
  text-transform: uppercase; color: var(--c-text-3); margin-bottom: 10px;
}
.ay-shead__cn {
  font-size: clamp(22px, 2.4vw, 30px); font-weight: 600;
  letter-spacing: -.02em; color: var(--c-text);
}
.ay-shead__desc { margin-top: 12px; max-width: 780px; color: var(--c-text-2); font-size: 15px; }
.ay-shead__more {
  flex: 0 0 auto; display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; color: var(--c-text-2); padding-bottom: 4px;
  transition: color .25s var(--ease), gap .25s var(--ease);
}
.ay-shead__more:hover { color: var(--c-brand); gap: 12px; }
.ay-shead__more i { font-style: normal; }

.ay-shead--center { flex-direction: column; align-items: center; text-align: center; border-bottom: 0; padding-bottom: 0; }
.ay-shead--center::after { left: 50%; transform: translateX(-50%); bottom: -18px; }
.ay-shead--center .ay-shead__desc { margin-left: auto; margin-right: auto; }
.ay-shead--light { border-color: rgba(255, 255, 255, .14); }
.ay-shead--light .ay-shead__en { color: rgba(255, 255, 255, .5); }
.ay-shead--light .ay-shead__cn { color: #fff; }
.ay-shead--light .ay-shead__desc { color: rgba(255, 255, 255, .72); }
.ay-shead--light .ay-shead__more { color: rgba(255, 255, 255, .72); }
.ay-shead--light .ay-shead__more:hover { color: var(--c-brand-300); }

/* ---------- 5. 按钮 ---------- */
.ay-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 44px; padding: 0 26px; border: 1px solid transparent;
  border-radius: var(--r-xs); font-size: 15px; font-weight: 500;
  cursor: pointer; white-space: nowrap; background: transparent;
  transition: background .25s var(--ease), color .25s var(--ease),
              border-color .25s var(--ease), transform .25s var(--ease),
              box-shadow .25s var(--ease);
}
.ay-btn--primary { background: var(--c-brand); color: #fff; }
.ay-btn--primary:hover {
  background: var(--c-brand-600); color: #fff;
  transform: translateY(-2px); box-shadow: var(--sh-brand);
}
.ay-btn--ghost { border-color: rgba(255, 255, 255, .38); color: #fff; }
.ay-btn--ghost:hover {
  background: rgba(255, 255, 255, .12); border-color: #fff; color: #fff;
  transform: translateY(-2px);
}
.ay-btn--outline { border-color: var(--c-line); color: var(--c-text); background: #fff; }
.ay-btn--outline:hover { border-color: var(--c-brand); color: var(--c-brand); transform: translateY(-2px); }
.ay-btn--sm { height: 38px; padding: 0 18px; font-size: 14px; }
.ay-btn--lg { height: 50px; padding: 0 32px; font-size: 16px; }
.ay-btn--block { width: 100%; }

/* ---------- 6. 顶部导航 ---------- */
.ay-header {
  position: sticky; top: 0; z-index: 900;
  background: rgba(255, 255, 255, .94);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--c-line);
  transition: box-shadow var(--dur) var(--ease);
}
.ay-header.is-scrolled { box-shadow: var(--sh-sm); }
.ay-header__inner {
  max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter);
  height: var(--header-h); display: flex; align-items: center; gap: 40px;
}
.ay-logo { display: flex; align-items: center; flex: 0 0 auto; }
.ay-logo img { height: 52px; width: auto; display: block; }
.ay-nav { flex: 1 1 auto; }
.ay-nav__list { display: flex; align-items: center; justify-content: flex-end; gap: 4px; }
.ay-nav__item { position: relative; height: var(--header-h); display: flex; align-items: center; }
.ay-nav__link {
  position: relative; display: flex; align-items: center; gap: 5px;
  height: 100%; padding: 0 15px; font-size: 15px; color: var(--c-text);
  transition: color .25s var(--ease);
}
.ay-nav__link::after {
  content: ""; position: absolute; left: 50%; bottom: 0;
  width: calc(100% - 20px); height: 2px; border-radius: 2px;
  background: var(--c-brand);
  transform: translateX(-50%) scaleX(0); transform-origin: center;
  transition: transform .3s var(--ease);
}
.ay-nav__item:hover .ay-nav__link,
.ay-nav__item.is-active .ay-nav__link { color: var(--c-brand); }
.ay-nav__item:hover .ay-nav__link::after,
.ay-nav__item.is-active .ay-nav__link::after { transform: translateX(-50%) scaleX(1); }
.ay-nav__caret {
  width: 0; height: 0; margin-left: 1px; opacity: .55;
  border-left: 4px solid transparent; border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  transition: transform .3s var(--ease);
}
.ay-nav__item:hover .ay-nav__caret { transform: rotate(180deg); }
.ay-nav__sub {
  position: absolute; top: calc(100% - 8px); left: 50%;
  transform: translateX(-50%) translateY(12px);
  min-width: 190px; padding: 10px;
  background: #fff; border-radius: var(--r-sm);
  border: 1px solid var(--c-line);
  box-shadow: var(--sh-md);
  opacity: 0; visibility: hidden;
  transition: opacity .28s var(--ease), transform .28s var(--ease), visibility .28s;
}
.ay-nav__sub::before {
  content: ""; position: absolute; top: -6px; left: 50%; margin-left: -6px;
  width: 10px; height: 10px; background: #fff; transform: rotate(45deg);
  border-left: 1px solid var(--c-line); border-top: 1px solid var(--c-line);
}
.ay-nav__item:hover .ay-nav__sub {
  opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0);
}
.ay-nav__sub a {
  display: block; padding: 9px 14px; border-radius: var(--r-xs);
  font-size: 14px; color: var(--c-text-2); white-space: nowrap;
  transition: background .2s var(--ease), color .2s var(--ease);
}
.ay-nav__sub a:hover { background: var(--c-brand-soft); color: var(--c-brand); }
.ay-header__cta { display: flex; align-items: center; gap: 20px; flex: 0 0 auto; }
.ay-header__tel { display: flex; flex-direction: column; line-height: 1.25; }
.ay-header__tel span { font-size: 11px; letter-spacing: .1em; color: var(--c-text-3); }
.ay-header__tel strong { font-size: 16px; font-weight: 700; color: var(--c-brand); letter-spacing: -.01em; }
.ay-header__cta .ay-btn { height: 40px; padding: 0 22px; font-size: 14px; }

/* 移动端汉堡 + 抽屉 */
.ay-burger {
  display: none; width: 42px; height: 42px; border: 0; background: transparent;
  cursor: pointer; flex-direction: column; justify-content: center; align-items: center;
  gap: 5px; border-radius: var(--r-xs);
}
.ay-burger span { display: block; width: 20px; height: 2px; border-radius: 2px; background: var(--c-text); transition: transform .3s var(--ease), opacity .3s var(--ease); }
.ay-burger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.ay-burger.is-open span:nth-child(2) { opacity: 0; }
.ay-burger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.ay-mnav {
  position: fixed; inset: calc(var(--header-h) + 38px) 0 0 0; z-index: 950;
  background: #fff; padding: 8px var(--gutter) 40px; overflow-y: auto;
  transform: translateX(100%); visibility: hidden;
  transition: transform .34s var(--ease), visibility .34s;
}
.ay-mnav.is-open { transform: translateX(0); visibility: visible; }
.ay-mnav__item { border-bottom: 1px solid var(--c-line-2); }
.ay-mnav__item > a { display: block; padding: 15px 2px; font-size: 16px; font-weight: 500; }
.ay-mnav__sub { display: flex; flex-wrap: wrap; gap: 8px 16px; padding: 0 2px 16px; }
.ay-mnav__sub a { font-size: 14px; color: var(--c-text-2); }

/* ---------- 7. 首页 Hero ---------- */
.ay-hero {
  position: relative; display: flex; align-items: center;
  min-height: clamp(520px, 74vh, 700px); overflow: hidden;
  background: var(--c-ink-900);
}
.ay-hero__slide { position: absolute; inset: 0; opacity: 0; transition: opacity 1s var(--ease); }
.ay-hero__slide.is-active { opacity: 1; }
.ay-hero__slide img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.05); }
.ay-hero__slide.is-active img { animation: ayKen 10s var(--ease-out) forwards; }
@keyframes ayKen { from { transform: scale(1.05); } to { transform: scale(1.14); } }
.ay-hero__veil {
  position: absolute; inset: 0; z-index: 1;
  background:
    linear-gradient(96deg, rgba(6, 16, 30, .93) 0%, rgba(6, 16, 30, .74) 34%, rgba(6, 16, 30, .26) 66%, rgba(6, 16, 30, .02) 100%),
    linear-gradient(180deg, rgba(6, 16, 30, .32) 0%, transparent 36%, rgba(6, 16, 30, .40) 100%);
}
.ay-hero__inner { position: relative; z-index: 2; width: 100%; }
.ay-hero__content { max-width: 660px; color: #fff; }
.ay-hero__kicker {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12px; font-weight: 700; letter-spacing: .26em; text-transform: uppercase;
  color: var(--c-brand-300); margin-bottom: 22px;
}
.ay-hero__kicker::before { content: ""; width: 28px; height: 2px; background: var(--c-brand); border-radius: 2px; }
.ay-hero__title {
  font-size: clamp(30px, 4.2vw, 52px); font-weight: 700; line-height: 1.22;
  letter-spacing: -.03em; color: #fff; margin-bottom: 22px;
  text-shadow: 0 2px 30px rgba(0, 0, 0, .25);
}
.ay-hero__title em { font-style: normal; color: var(--c-brand-300); }
.ay-hero__desc {
  font-size: 16px; line-height: 1.95; color: rgba(255, 255, 255, .78);
  max-width: 560px; margin-bottom: 36px;
}
.ay-hero__actions { display: flex; flex-wrap: wrap; gap: 14px; }
.ay-hero__dots {
  position: absolute; right: var(--gutter); bottom: 104px; z-index: 3;
  display: flex; gap: 10px; align-items: center;
}
.ay-hero__dot {
  width: 30px; height: 3px; border: 0; padding: 0; cursor: pointer;
  background: rgba(255, 255, 255, .35); border-radius: 3px;
  transition: background .3s var(--ease), width .3s var(--ease);
}
.ay-hero__dot.is-active { background: var(--c-brand); width: 46px; }

/* Hero 下方能力条（悬浮压边） */
.ay-facts { position: relative; z-index: 6; margin-top: -58px; }
.ay-facts__inner {
  display: grid; grid-template-columns: repeat(4, 1fr);
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--r-md);
  box-shadow: var(--sh-lg); overflow: hidden;
}
.ay-fact { display: flex; align-items: center; gap: 14px; padding: 26px 24px; border-right: 1px solid var(--c-line); }
.ay-fact:last-child { border-right: 0; }
.ay-fact__idx {
  font-family: var(--f-num); font-size: 12px; font-weight: 700;
  color: var(--c-brand); letter-spacing: .04em; flex: 0 0 auto;
}
.ay-fact__text { font-size: 15px; font-weight: 600; color: var(--c-text); line-height: 1.4; }

/* ---------- 8. 网格与卡片 ---------- */
.ay-grid { display: grid; gap: 24px; }
.ay-grid--4 { grid-template-columns: repeat(4, 1fr); }
.ay-grid--3 { grid-template-columns: repeat(3, 1fr); }
.ay-grid--2 { grid-template-columns: repeat(2, 1fr); }

.ay-card {
  position: relative; display: flex; flex-direction: column;
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--r-md);
  overflow: hidden;
  transition: transform .38s var(--ease), box-shadow .38s var(--ease), border-color .38s var(--ease);
}
.ay-card::after {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px; z-index: 2;
  background: linear-gradient(90deg, var(--c-brand), var(--c-brand-300));
  transform: scaleX(0); transform-origin: left;
  transition: transform .42s var(--ease);
}
.ay-card:hover { transform: translateY(-6px); box-shadow: var(--sh-lg); border-color: transparent; }
.ay-card:hover::after { transform: scaleX(1); }
.ay-card__media { position: relative; overflow: hidden; background: linear-gradient(180deg, #f8fafd 0%, var(--c-bg-mute) 100%); }
.ay-card--product .ay-card__media { aspect-ratio: 4 / 3; display: flex; align-items: center; justify-content: center; padding: 22px; }
.ay-card--product .ay-card__media img { max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; transition: transform .5s var(--ease); }
.ay-card--photo .ay-card__media { aspect-ratio: 16 / 10; }
.ay-card--photo .ay-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.ay-card:hover .ay-card__media img { transform: scale(1.05); }
.ay-card__body { display: flex; flex-direction: column; flex: 1; padding: 20px 22px 22px; }
.ay-card__title { font-size: 16px; font-weight: 600; color: var(--c-text); line-height: 1.5; }
.ay-card__meta { margin-top: 6px; font-size: 13px; color: var(--c-text-3); }
.ay-card__arrow {
  margin-top: auto; padding-top: 14px; display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; color: var(--c-text-3); transition: color .28s var(--ease), gap .28s var(--ease);
}
.ay-card:hover .ay-card__arrow { color: var(--c-brand); gap: 11px; }
.ay-card__tag {
  position: absolute; top: 14px; left: 14px; z-index: 2;
  padding: 4px 10px; border-radius: var(--r-pill); font-size: 12px;
  background: rgba(255, 255, 255, .92); color: var(--c-ink-700);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
}

/* 图上叠字卡（案例专用）：与产品白卡拉开层次 */
.ay-card--overlay { background: var(--c-ink-800); border-color: transparent; }
.ay-card--overlay .ay-card__media { aspect-ratio: 4 / 3; }
.ay-card--overlay .ay-card__media img { width: 100%; height: 100%; object-fit: cover; }
.ay-card--overlay .ay-card__media::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(180deg, rgba(6, 16, 30, 0) 34%, rgba(6, 16, 30, .58) 68%, rgba(6, 16, 30, .9) 100%);
  transition: opacity .4s var(--ease);
}
.ay-card__caption {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 2;
  padding: 20px 22px 22px; color: #fff;
}
.ay-card__caption h3 {
  font-size: 16px; font-weight: 600; color: #fff; line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.ay-card__caption span {
  display: inline-flex; align-items: center; gap: 6px; margin-top: 10px;
  font-size: 12px; color: rgba(255, 255, 255, .72);
  opacity: 0; transform: translateY(6px);
  transition: opacity .35s var(--ease), transform .35s var(--ease);
}
.ay-card--overlay:hover .ay-card__caption span { opacity: 1; transform: none; }

/* ---------- 9. 深色数据区 ---------- */
.ay-about { display: grid; grid-template-columns: 1fr 1.05fr; gap: 64px; align-items: center; }
.ay-about__en {
  font-size: 12px; font-weight: 700; letter-spacing: .26em; text-transform: uppercase;
  color: rgba(255, 255, 255, .5); margin-bottom: 14px;
}
.ay-about__title { font-size: clamp(24px, 2.8vw, 34px); font-weight: 600; color: #fff; letter-spacing: -.02em; line-height: 1.3; }
.ay-about__text { margin: 20px 0 32px; color: rgba(255, 255, 255, .74); font-size: 15px; line-height: 1.95; }
.ay-stats {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px;
  background: rgba(255, 255, 255, .14); border: 1px solid rgba(255, 255, 255, .14);
  border-radius: var(--r-md); overflow: hidden;
}
.ay-stat {
  padding: 30px 26px;
  background: rgba(8, 20, 36, .55);
  -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px);
}
.ay-stat__row { display: flex; align-items: baseline; gap: 4px; }
.ay-stat__num {
  font-family: var(--f-num); font-size: clamp(30px, 3.4vw, 42px); font-weight: 700;
  line-height: 1; letter-spacing: -.03em;
  background: linear-gradient(135deg, #ffb27a 0%, var(--c-brand) 62%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.ay-stat__unit { font-size: 15px; color: rgba(255, 255, 255, .85); }
.ay-stat__label { margin-top: 12px; font-size: 13px; color: rgba(255, 255, 255, .62); line-height: 1.6; }

/* ---------- 10. 分类标签 ---------- */
.ay-tabs { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 36px; }
.ay-tabs--center { justify-content: center; }
.ay-tabs:empty { display: none; margin: 0; }
.ay-tab {
  padding: 9px 20px; border-radius: var(--r-pill);
  border: 1px solid var(--c-line); background: #fff;
  font-size: 14px; color: var(--c-text-2);
  transition: all .28s var(--ease);
}
.ay-tab:hover { border-color: var(--c-brand); color: var(--c-brand); }
.ay-tab.is-active { background: var(--c-brand); border-color: var(--c-brand); color: #fff; box-shadow: 0 6px 16px rgba(255, 106, 0, .22); }

/* ---------- 11. 应用效果（横向卡） ---------- */
.ay-feats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.ay-feat {
  display: grid; grid-template-columns: 208px 1fr;
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--r-md);
  overflow: hidden;
  transition: transform .38s var(--ease), box-shadow .38s var(--ease), border-color .38s var(--ease);
}
.ay-feat:hover { transform: translateY(-6px); box-shadow: var(--sh-lg); border-color: transparent; }
.ay-feat__media { position: relative; overflow: hidden; background: var(--c-bg-mute); }
.ay-feat__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.ay-feat:hover .ay-feat__media img { transform: scale(1.06); }
.ay-feat__body { padding: 26px 28px; display: flex; flex-direction: column; }
.ay-feat__idx { font-family: var(--f-num); font-size: 12px; font-weight: 700; letter-spacing: .14em; color: var(--c-brand); }
.ay-feat__title { margin: 12px 0 10px; font-size: 17px; font-weight: 600; color: var(--c-text); line-height: 1.5; }
.ay-feat__desc { font-size: 14px; color: var(--c-text-2); line-height: 1.85; }

/* ---------- 12. 新闻 ---------- */
.ay-news { display: grid; grid-template-columns: 1.18fr 1fr; gap: 28px; }
.ay-news__col {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--r-md);
  padding: 4px 26px 12px;
  transition: box-shadow .38s var(--ease);
}
.ay-news__col:hover { box-shadow: var(--sh-md); }
.ay-news__col-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px 0 16px; border-bottom: 1px solid var(--c-line);
}
.ay-news__col-head h3 { display: flex; align-items: center; gap: 10px; font-size: 17px; font-weight: 600; }
.ay-news__col-head h3 a { color: inherit; }
.ay-news__col-head h3 a:hover { color: var(--c-brand); }
.ay-news__col-head h3::before { content: ""; width: 3px; height: 16px; border-radius: 2px; background: var(--c-brand); }
.ay-news__col-head a { font-size: 13px; color: var(--c-text-3); }
.ay-news__col-head a:hover { color: var(--c-brand); }
.ay-news__item {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 18px 0; border-bottom: 1px dashed var(--c-line);
}
.ay-news__item:last-child { border-bottom: 0; padding-bottom: 8px; }
.ay-news__date {
  flex: 0 0 58px; height: 58px; border-radius: var(--r-sm);
  background: var(--c-bg-soft); border: 1px solid var(--c-line-2);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  line-height: 1.1; transition: background .3s var(--ease), border-color .3s var(--ease);
}
.ay-news__day { font-family: var(--f-num); font-size: 19px; font-weight: 700; color: var(--c-text); }
.ay-news__ym { font-size: 11px; color: var(--c-text-3); margin-top: 3px; }
.ay-news__item:hover .ay-news__date { background: var(--c-brand-soft); border-color: var(--c-brand-ring); }
.ay-news__item:hover .ay-news__day { color: var(--c-brand); }
.ay-news__main { min-width: 0; }
.ay-news__title { font-size: 15px; font-weight: 500; color: var(--c-text); line-height: 1.6; transition: color .25s var(--ease); }
.ay-news__item:hover .ay-news__title { color: var(--c-brand); }
.ay-news__desc {
  margin-top: 6px; font-size: 13px; color: var(--c-text-3); line-height: 1.7;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.ay-news__more { text-align: center; margin-top: 40px; }

/* ---------- 13. 内页头图 ---------- */
.ay-pagehead {
  position: relative; display: flex; align-items: center;
  min-height: 280px; overflow: hidden; background: var(--c-ink-800);
}
.ay-pagehead__bg { position: absolute; inset: 0; }
.ay-pagehead__bg img { width: 100%; height: 100%; object-fit: cover; opacity: .42; }
.ay-pagehead__veil {
  position: absolute; inset: 0;
  background:
    linear-gradient(96deg, rgba(6, 16, 30, .93) 0%, rgba(6, 16, 30, .68) 48%, rgba(6, 16, 30, .18) 100%),
    linear-gradient(180deg, rgba(6, 16, 30, .22), transparent 42%, rgba(6, 16, 30, .38));
}
.ay-pagehead__inner {
  position: relative; z-index: 2; width: 100%; max-width: var(--wrap);
  margin: 0 auto; padding: 56px var(--gutter);
}
.ay-pagehead__en {
  font-size: 12px; font-weight: 700; letter-spacing: .26em; text-transform: uppercase;
  color: var(--c-brand-300);
}
.ay-pagehead__cn {
  margin-top: 12px; font-size: clamp(26px, 3.2vw, 40px); font-weight: 600;
  color: #fff; letter-spacing: -.02em;
}
.ay-pagehead__cn::after {
  content: ""; display: block; width: 48px; height: 3px; border-radius: 2px;
  background: var(--c-brand); margin-top: 20px;
}
.ay-pagehead__desc { margin-top: 18px; max-width: 620px; color: rgba(255, 255, 255, .72); font-size: 15px; }

.ay-crumb { background: #fff; border-bottom: 1px solid var(--c-line); font-size: 13px; color: var(--c-text-3); }
.ay-crumb__inner {
  max-width: var(--wrap); margin: 0 auto; padding: 15px var(--gutter);
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
}
.ay-crumb a { color: var(--c-text-2); }
.ay-crumb a:hover { color: var(--c-brand); }

/* 同级栏目条 */
.ay-subbar { background: #fff; border-bottom: 1px solid var(--c-line); }
.ay-subbar .ay-container { padding-top: 14px; padding-bottom: 14px; }
.ay-subbar .ay-tabs { margin-bottom: 0; }

/* ---------- 14. 内页主体 ---------- */
.ay-main { padding: clamp(36px, 4.2vw, 56px) 0 clamp(64px, 7vw, 100px); }
.ay-main--soft { background: var(--c-bg-soft); }
/* 浅灰底上，卡片去掉描边、改用投影，层次更干净 */
.ay-main--soft .ay-card { border-color: transparent; box-shadow: var(--sh-sm); }
.ay-main--soft .ay-card:hover { box-shadow: var(--sh-lg); }
.ay-panel { background: #fff; border: 1px solid var(--c-line); border-radius: var(--r-lg); padding: clamp(24px, 3vw, 40px); box-shadow: var(--sh-xs); }
.ay-panel--flat { background: transparent; border: 0; box-shadow: none; padding: 0; }

/* 分页 */
.ay-pager { display: flex; justify-content: center; align-items: center; gap: 8px; margin-top: 44px; flex-wrap: wrap; }
.ay-pager a, .ay-pager span, .ay-pager .page-num, .ay-pager .page-item {
  min-width: 38px; height: 38px; padding: 0 13px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--c-line); border-radius: var(--r-xs);
  font-size: 14px; color: var(--c-text-2); background: #fff;
  transition: all .25s var(--ease);
}
.ay-pager a:hover, .ay-pager .page-num:hover, .ay-pager .page-item:hover {
  border-color: var(--c-brand); color: var(--c-brand);
}
.ay-pager .page-num-current,
.ay-pager .page-num-current:hover,
.ay-pager .page-item.is-current {
  background: var(--c-brand); border-color: var(--c-brand); color: #fff;
  box-shadow: 0 6px 16px rgba(255, 106, 0, .22);
}
.ay-pager [href="javascript:;"] { color: var(--c-text-3); cursor: not-allowed; }
.ay-pager [href="javascript:;"]:hover { border-color: var(--c-line); color: var(--c-text-3); }

/* ---------- 15. 详情页 ---------- */
.ay-detail__head { display: grid; grid-template-columns: minmax(0, 440px) 1fr; gap: 52px; align-items: start; }
.ay-detail__img {
  position: relative; display: flex; align-items: center; justify-content: center;
  border-radius: var(--r-md); overflow: hidden; aspect-ratio: 1 / 1; padding: 30px;
  background: linear-gradient(160deg, #f8fafd 0%, var(--c-bg-mute) 100%);
  border: 1px solid var(--c-line);
}
.ay-detail__img img { max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; }
.ay-detail__img--photo { aspect-ratio: 16 / 10; padding: 0; }
.ay-detail__img--photo img { width: 100%; height: 100%; object-fit: cover; }
.ay-detail__title { font-size: clamp(22px, 2.6vw, 30px); font-weight: 600; color: var(--c-text); letter-spacing: -.02em; margin-bottom: 22px; }
.ay-detail__meta {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px;
  background: var(--c-line); border: 1px solid var(--c-line);
  border-radius: var(--r-sm); overflow: hidden; margin-bottom: 30px;
}
.ay-detail__meta p { padding: 13px 18px; background: #fff; font-size: 14px; color: var(--c-text-2); }
.ay-detail__meta a { color: var(--c-brand); }
.ay-detail__body { margin-top: 40px; font-size: 15px; color: var(--c-text-2); }
.ay-detail__body img { max-width: 100%; height: auto; margin: 20px auto; border-radius: var(--r-sm); }
.ay-detail__body p { margin-bottom: 16px; }
.ay-detail__body h3, .ay-detail__body h4 { color: var(--c-text); margin: 26px 0 12px; }
.ay-detail__body ul, .ay-detail__body ol { margin: 0 0 16px 20px; list-style: disc; }
.ay-detail__body li { margin-bottom: 8px; }
.ay-detail__body table { margin: 20px 0; border: 1px solid var(--c-line); }
.ay-detail__body th, .ay-detail__body td { border: 1px solid var(--c-line); padding: 12px 16px; font-size: 14px; }
.ay-detail__body th { background: var(--c-bg-soft); color: var(--c-text); font-weight: 600; }
.ay-detail__subtitle {
  display: flex; align-items: center; gap: 12px;
  font-size: 19px; font-weight: 600; color: var(--c-text);
  margin: 52px 0 22px;
}
.ay-detail__subtitle::before { content: ""; width: 4px; height: 20px; border-radius: 2px; background: var(--c-brand); }

.ay-pn {
  display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap;
  margin-top: 52px; padding-top: 26px; border-top: 1px solid var(--c-line);
  font-size: 14px; color: var(--c-text-3);
}
.ay-pn a { color: var(--c-text-2); }
.ay-pn a:hover { color: var(--c-brand); }

/* 文章 */
.ay-article { max-width: 900px; margin: 0 auto; }
.ay-article__title { font-size: clamp(22px, 2.6vw, 30px); font-weight: 600; text-align: center; letter-spacing: -.02em; line-height: 1.45; }
.ay-article__meta {
  display: flex; justify-content: center; align-items: center; gap: 22px; flex-wrap: wrap;
  margin: 20px 0 36px; padding-bottom: 26px; border-bottom: 1px solid var(--c-line);
  font-size: 13px; color: var(--c-text-3);
}
.ay-article__meta span { display: inline-flex; align-items: center; gap: 6px; }

/* ---------- 16. 表单与联系 ---------- */
.ay-form { display: grid; gap: 16px; }
.ay-form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.ay-input {
  width: 100%; height: 48px; padding: 0 18px;
  border: 1px solid var(--c-line); border-radius: var(--r-xs);
  background: var(--c-bg-soft); font-size: 15px; color: var(--c-text);
  transition: background .25s var(--ease), border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.ay-input::placeholder { color: var(--c-text-3); }
.ay-input:hover { border-color: #cfdae8; }
.ay-input:focus { background: #fff; border-color: var(--c-brand); box-shadow: 0 0 0 3px var(--c-brand-ring); }
textarea.ay-input { height: 128px; padding: 14px 18px; resize: vertical; line-height: 1.7; }
.ay-form__code { display: flex; gap: 12px; align-items: center; }
.ay-form__code img { height: 48px; border-radius: var(--r-xs); cursor: pointer; border: 1px solid var(--c-line); }

.ay-contact { display: grid; grid-template-columns: 1fr 1.15fr; gap: 56px; align-items: start; }
.ay-contact__title { font-size: clamp(20px, 2.2vw, 26px); font-weight: 600; color: var(--c-text); letter-spacing: -.02em; }
.ay-contact__sub { margin-top: 12px; color: var(--c-text-2); font-size: 15px; }
.ay-contact__list { display: grid; gap: 1px; margin: 26px 0; background: var(--c-line); border: 1px solid var(--c-line); border-radius: var(--r-sm); overflow: hidden; }
.ay-contact__list p { display: flex; gap: 14px; padding: 14px 18px; background: #fff; font-size: 14px; color: var(--c-text-2); }
.ay-contact__list b { flex: 0 0 56px; font-weight: 500; color: var(--c-text-3); }
.ay-contact__qr { width: 168px; padding: 12px; border: 1px solid var(--c-line); border-radius: var(--r-sm); background: #fff; text-align: center; }
.ay-contact__qr img { width: 100%; border-radius: var(--r-xs); }
.ay-contact__qr p { margin-top: 8px; font-size: 12px; color: var(--c-text-3); }
.ay-contact__formcard { background: var(--c-bg-soft); border: 1px solid var(--c-line); border-radius: var(--r-md); padding: 32px; }

/* ---------- 17. 页脚 + CTA ---------- */
.ay-cta {
  position: relative; overflow: hidden; color: #fff;
  background: linear-gradient(120deg, var(--c-ink-800) 0%, var(--c-ink-700) 50%, #16324f 100%);
}
.ay-cta::after {
  content: ""; position: absolute; width: 620px; height: 620px; right: -140px; top: -260px;
  background: radial-gradient(circle, rgba(255, 106, 0, .2) 0%, transparent 62%);
}
.ay-cta__inner {
  position: relative; z-index: 1; display: flex; align-items: center;
  justify-content: space-between; gap: 40px; flex-wrap: wrap;
  padding: clamp(40px, 4.6vw, 60px) 0;
}
.ay-cta__title { font-size: clamp(20px, 2.3vw, 28px); font-weight: 600; letter-spacing: -.02em; }
.ay-cta__desc { margin-top: 10px; color: rgba(255, 255, 255, .7); font-size: 15px; }
.ay-cta__actions { display: flex; gap: 14px; flex-wrap: wrap; }

.ay-footer { background: var(--c-ink-900); color: rgba(255, 255, 255, .62); }
.ay-footer__top { padding: 60px 0 40px; }
.ay-footer__grid { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(0, 3fr); gap: 48px; align-items: start; }
.ay-footer__logo { height: 44px; margin-bottom: 22px; filter: brightness(0) invert(1); opacity: .95; }
.ay-footer__ct { list-style: none; margin: 0; padding: 0; }
.ay-footer__ct li { display: flex; gap: 12px; font-size: 13px; line-height: 1.7; margin-bottom: 9px; }
.ay-footer__ct span { flex: 0 0 58px; white-space: nowrap; color: rgba(255, 255, 255, .42); }
.ay-footer__ct b { flex: 1; min-width: 0; font-weight: 400; color: rgba(255, 255, 255, .86); word-break: break-all; }
.ay-footer__qrbox { display: flex; align-items: center; gap: 14px; margin-top: 22px; }
.ay-footer__qrtip { font-size: 12px; line-height: 1.6; color: rgba(255, 255, 255, .45); }
.ay-footer__navs { display: grid; grid-template-columns: 1.3fr 1.3fr 1fr 1fr 1fr; gap: 24px; }
.ay-footer__col h4 { color: #fff; font-size: 14px; font-weight: 600; margin-bottom: 16px; }
.ay-footer__col h4 a { color: #fff; }
.ay-footer__col h4 a:hover { color: var(--c-brand); }
.ay-footer__col > a { display: block; font-size: 13px; line-height: 1.5; margin-bottom: 11px; color: rgba(255, 255, 255, .58); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ay-footer__col > a:hover { color: var(--c-brand); }
.ay-footer__links { display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px 18px; padding-top: 24px; margin-top: 34px; border-top: 1px solid rgba(255, 255, 255, .08); }
.ay-footer__links h4 { flex: 0 0 auto; color: rgba(255, 255, 255, .85); font-size: 13px; font-weight: 600; margin-right: 6px; }
.ay-footer__links a { font-size: 13px; color: rgba(255, 255, 255, .5); }
.ay-footer__links a:hover { color: var(--c-brand); }
.ay-footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, .08); padding: 22px 0;
  font-size: 12px; color: rgba(255, 255, 255, .42);
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}
.ay-footer__bottom .ay-container { display: flex; align-items: center; justify-content: space-between; gap: 10px 24px; flex-wrap: wrap; }
.ay-footer__meta { display: flex; align-items: center; gap: 20px; }
.ay-footer__bottom a { color: rgba(255, 255, 255, .42); }
.ay-footer__bottom a:hover { color: var(--c-brand); }

/* ---------- 18. 侧边悬浮 ---------- */
.ay-side { position: fixed; right: 18px; bottom: 88px; z-index: 800; display: grid; gap: 8px; }
.ay-side__item { position: relative; }
.ay-side__btn {
  width: 52px; height: 52px; border-radius: var(--r-sm);
  background: #fff; border: 1px solid var(--c-line); box-shadow: var(--sh-sm);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 1px; font-size: 11px; color: var(--c-text-2); cursor: pointer;
  transition: all .28s var(--ease);
}
.ay-side__btn svg { width: 19px; height: 19px; }
.ay-side__btn:hover { color: #fff; background: var(--c-brand); border-color: var(--c-brand); transform: translateX(-3px); box-shadow: var(--sh-brand); }
.ay-side__pop {
  position: absolute; right: 62px; top: 50%; transform: translateY(-50%) translateX(6px);
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--r-sm);
  box-shadow: var(--sh-md); padding: 14px 18px; white-space: nowrap;
  font-size: 13px; color: var(--c-text-2); line-height: 1.9;
  opacity: 0; visibility: hidden;
  transition: all .28s var(--ease);
}
.ay-side__item:hover .ay-side__pop { opacity: 1; visibility: visible; transform: translateY(-50%) translateX(0); }

/* ---------- 19. 滚动进场动效（仅在 JS 可用时启用，避免无脚本白屏） ---------- */
html.ay-js .ay-reveal {
  opacity: 0; transform: translateY(26px);
  transition: opacity .8s var(--ease-out), transform .8s var(--ease-out);
  transition-delay: var(--d, 0ms);
}
html.ay-js .ay-reveal.is-in { opacity: 1; transform: none; }

/* ---------- 20. 响应式 ---------- */
@media (max-width: 1200px) {
  .ay-grid--4 { grid-template-columns: repeat(3, 1fr); }
  .ay-feats { grid-template-columns: 1fr; }
  .ay-footer__grid { grid-template-columns: minmax(0, 1.3fr) minmax(0, 3fr); gap: 32px; }
  .ay-footer__navs { gap: 18px; }
}
@media (max-width: 1024px) {
  .ay-nav { display: none; }
  .ay-burger { display: flex; }
  .ay-header__inner { gap: 16px; justify-content: space-between; }
  .ay-about { grid-template-columns: 1fr; gap: 40px; }
  .ay-news { grid-template-columns: 1fr; gap: 24px; }
  .ay-detail__head { grid-template-columns: 1fr; gap: 32px; }
  .ay-detail__img { max-width: 420px; }
  .ay-contact { grid-template-columns: 1fr; gap: 36px; }
  .ay-footer__grid { grid-template-columns: 1fr; gap: 34px; }
  .ay-footer__navs { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
  .ay-side { display: none; }
  .ay-facts__inner { grid-template-columns: repeat(2, 1fr); }
  .ay-fact:nth-child(2) { border-right: 0; }
  .ay-fact:nth-child(1), .ay-fact:nth-child(2) { border-bottom: 1px solid var(--c-line); }
  .ay-shead { gap: 20px; }
}
@media (max-width: 768px) {
  :root { --gutter: 18px; --header-h: 64px; }
  .ay-header__tel { display: none; }
  .ay-logo img { height: 44px; }
  .ay-mnav { top: calc(var(--header-h) + 34px); }
  .ay-hero { min-height: 78vh; }
  .ay-hero__desc { font-size: 15px; margin-bottom: 28px; }
  .ay-hero__dots { right: 50%; transform: translateX(50%); bottom: 108px; }
  .ay-facts { margin-top: -40px; }
  .ay-grid--4, .ay-grid--3, .ay-grid--2 { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .ay-card__body { padding: 16px 16px 18px; }
  .ay-card__title { font-size: 15px; }
  .ay-feat { grid-template-columns: 140px 1fr; }
  .ay-feat__body { padding: 20px; }
  .ay-feat__title { font-size: 16px; }
  .ay-section--dark::after { width: 460px; height: 460px; }
  .ay-stats { grid-template-columns: 1fr 1fr; }
  .ay-stat { padding: 22px 18px; }
  .ay-pagehead { min-height: 210px; }
  .ay-pagehead__inner { padding: 40px var(--gutter); }
  .ay-detail__meta { grid-template-columns: 1fr; }
  .ay-form__row { grid-template-columns: 1fr; }
  .ay-panel { border-radius: var(--r-md); }
  .ay-contact__formcard { padding: 22px; }
  .ay-footer__grid { grid-template-columns: 1fr; gap: 34px; }
  .ay-footer__navs { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
  .ay-cta__inner { flex-direction: column; align-items: flex-start; gap: 24px; }
}
@media (max-width: 560px) {
  .ay-grid--4, .ay-grid--3, .ay-grid--2 { grid-template-columns: 1fr; }
  .ay-facts__inner { grid-template-columns: 1fr; }
  .ay-fact { border-right: 0; border-bottom: 1px solid var(--c-line); padding: 18px 20px; }
  .ay-fact:last-child { border-bottom: 0; }
  .ay-feat { grid-template-columns: 1fr; }
  .ay-feat__media { aspect-ratio: 16 / 9; }
  .ay-shead { flex-direction: column; align-items: flex-start; gap: 14px; }
  .ay-footer__navs { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
  .ay-footer__bottom .ay-container { flex-direction: column; align-items: flex-start; gap: 8px; }
  .ay-hero { min-height: 70vh; }
  .ay-hero__actions .ay-btn { flex: 1 1 auto; }
}

/* 尊重"减少动效"偏好 */
@media (prefers-reduced-motion: reduce) {
  .ay-reveal { opacity: 1 !important; transform: none !important; }
  .ay-hero__slide.is-active img { animation: none; }
  * { transition-duration: .01ms !important; animation-duration: .01ms !important; scroll-behavior: auto !important; }
}

/* ==========================================================
   21. v3 增强组件（细节打磨 + 内容层）
   ========================================================== */

/* ---------- 阅读进度条 ---------- */
.ay-progress {
  position: fixed; left: 0; top: 0; height: 2px; width: 0; z-index: 999;
  background: linear-gradient(90deg, var(--c-brand), var(--c-brand-300));
  transition: width .12s linear;
}

/* ---------- 顶部通告条 ---------- */
.ay-topbar {
  background: var(--c-ink-900); color: rgba(255, 255, 255, .62);
  font-size: 12.5px; border-bottom: 1px solid rgba(255, 255, 255, .07);
}
.ay-topbar__inner {
  max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter);
  height: 38px; display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.ay-topbar__tagline { display: inline-flex; align-items: center; gap: 9px; letter-spacing: .04em; }
.ay-topbar__tagline::before {
  content: ""; width: 5px; height: 5px; border-radius: 50%;
  background: var(--c-brand); box-shadow: 0 0 0 3px rgba(255, 106, 0, .18);
}
.ay-topbar__right { display: flex; align-items: center; gap: 22px; }
.ay-topbar__right em { font-style: normal; color: rgba(255, 255, 255, .45); }
.ay-topbar__right b { color: #fff; font-weight: 600; font-family: var(--f-num); letter-spacing: .02em; }

/* ---------- Hero 右侧快捷面板 ---------- */
.ay-hero__aside { position: absolute; right: var(--gutter); top: 50%; transform: translateY(-50%); z-index: 3; }
.ay-hero__panel {
  width: 322px; padding: 22px; color: #fff;
  background: rgba(8, 19, 36, .52);
  border: 1px solid rgba(255, 255, 255, .14); border-radius: var(--r-md);
  -webkit-backdrop-filter: blur(16px) saturate(140%); backdrop-filter: blur(16px) saturate(140%);
  box-shadow: 0 30px 60px rgba(0, 0, 0, .3);
}
.ay-hero__panel h3 {
  font-size: 11.5px; font-weight: 700; letter-spacing: .2em; text-transform: uppercase;
  color: rgba(255, 255, 255, .5); margin-bottom: 12px;
}
.ay-hpanel__list { display: grid; gap: 4px; }
.ay-hpanel__list a {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 10px 12px; border-radius: var(--r-xs); font-size: 14px;
  color: rgba(255, 255, 255, .88); border: 1px solid transparent;
  transition: background .26s var(--ease), border-color .26s var(--ease), transform .26s var(--ease);
}
.ay-hpanel__list a:hover {
  background: rgba(255, 255, 255, .09); border-color: rgba(255, 255, 255, .16);
  color: #fff; transform: translateX(3px);
}
.ay-hpanel__list a i { font-style: normal; font-size: 15px; font-weight: 600; color: var(--c-brand-300); transition: transform .26s var(--ease); }
.ay-hpanel__list a:hover i { transform: translateX(2px); }
.ay-hpanel__foot {
  margin-top: 14px; padding-top: 14px; border-top: 1px solid rgba(255, 255, 255, .12);
  display: flex; align-items: center; justify-content: space-between;
  font-size: 12.5px; color: rgba(255, 255, 255, .6);
}
.ay-hpanel__foot b { color: var(--c-brand-300); font-family: var(--f-num); font-size: 15px; }

/* ---------- 卡片摘要 ---------- */
.ay-card__desc {
  margin-top: 8px; font-size: 13px; color: var(--c-text-3); line-height: 1.7;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.ay-card__desc:empty { display: none; }

/* ---------- 平台能力（图标 6 宫格） ---------- */
.ay-values {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: var(--c-line); border: 1px solid var(--c-line);
  border-radius: var(--r-md); overflow: hidden;
}
.ay-value { position: relative; background: #fff; padding: 30px 28px 32px; transition: background .3s var(--ease); }
.ay-value::after {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px;
  background: linear-gradient(90deg, var(--c-brand), var(--c-brand-300));
  transform: scaleX(0); transform-origin: left; transition: transform .42s var(--ease);
}
.ay-value:hover::after { transform: scaleX(1); }
.ay-value:hover { background: var(--c-bg-soft); }
.ay-value__ico {
  width: 44px; height: 44px; border-radius: 12px; margin-bottom: 16px;
  display: flex; align-items: center; justify-content: center;
  background: var(--c-brand-soft); color: var(--c-brand);
}
.ay-value__ico svg { width: 22px; height: 22px; }
.ay-value h3 { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.ay-value p { font-size: 13.5px; color: var(--c-text-2); line-height: 1.85; }

/* ---------- 服务流程（虚线时间轴） ---------- */
.ay-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.ay-step { position: relative; }
.ay-step::before {
  content: ""; position: absolute; left: 46px; right: -26px; top: 21px; height: 1px;
  background: repeating-linear-gradient(90deg, #d7e1ee 0 6px, transparent 6px 12px);
}
.ay-step:last-child::before { display: none; }
.ay-step__idx {
  position: relative; z-index: 1; width: 44px; height: 44px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: #fff; border: 1px solid var(--c-line); box-shadow: var(--sh-xs);
  font-family: var(--f-num); font-size: 14px; font-weight: 700; color: var(--c-brand);
}
.ay-step h3 { margin: 18px 0 8px; font-size: 16px; font-weight: 600; }
.ay-step p { font-size: 13.5px; color: var(--c-text-2); line-height: 1.85; }

/* ---------- FAQ 折叠 ---------- */
.ay-faq { display: grid; gap: 12px; }
.ay-faq__item {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--r-sm);
  transition: border-color .28s var(--ease), box-shadow .28s var(--ease);
}
.ay-faq__item[open] { border-color: var(--c-brand-ring); box-shadow: var(--sh-sm); }
.ay-faq__q {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 17px 22px; cursor: pointer; font-size: 15px; font-weight: 500;
  list-style: none; transition: color .25s var(--ease);
}
.ay-faq__q::-webkit-details-marker { display: none; }
.ay-faq__q::after {
  content: ""; flex: 0 0 auto; width: 9px; height: 9px; margin-right: 3px;
  border-right: 2px solid var(--c-text-3); border-bottom: 2px solid var(--c-text-3);
  transform: rotate(45deg) translateY(-2px);
  transition: transform .3s var(--ease), border-color .3s var(--ease);
}
.ay-faq__item[open] .ay-faq__q { color: var(--c-brand); }
.ay-faq__item[open] .ay-faq__q::after { transform: rotate(-135deg) translateY(-2px); border-color: var(--c-brand); }
.ay-faq__a {
  margin: 0 22px 20px; padding-top: 15px; border-top: 1px dashed var(--c-line);
  font-size: 14px; color: var(--c-text-2); line-height: 1.95;
}

/* ---------- 列表页栏目头 ---------- */
.ay-listhead {
  position: relative; display: flex; align-items: flex-end; justify-content: space-between;
  gap: 24px; flex-wrap: wrap; margin-bottom: 28px; padding-bottom: 20px;
  border-bottom: 1px solid var(--c-line);
}
.ay-listhead::after {
  content: ""; position: absolute; left: 0; bottom: -1px;
  width: 56px; height: 2px; background: var(--c-brand); border-radius: 2px;
}
.ay-listhead h1 { font-size: clamp(20px, 2.2vw, 26px); font-weight: 600; letter-spacing: -.02em; }
.ay-listhead p { margin-top: 8px; max-width: 760px; font-size: 14px; color: var(--c-text-2); }
.ay-listhead__count { display: inline-flex; align-items: baseline; gap: 8px; font-size: 13px; color: var(--c-text-3); }
.ay-listhead__count b { font-family: var(--f-num); font-size: 18px; color: var(--c-brand); }

/* ---------- 新闻头条（列表首条放大） ---------- */
.ay-news__col a.ay-news__item:first-of-type { padding: 22px 0 24px; }
.ay-news__col a.ay-news__item:first-of-type .ay-news__date {
  flex: 0 0 72px; height: 72px; background: var(--c-brand-soft); border-color: var(--c-brand-ring);
}
.ay-news__col a.ay-news__item:first-of-type .ay-news__day { font-size: 24px; color: var(--c-brand); }
.ay-news__col a.ay-news__item:first-of-type .ay-news__title { font-size: 18px; font-weight: 600; }
.ay-news__col a.ay-news__item:first-of-type .ay-news__desc {
  -webkit-line-clamp: 3; font-size: 14px; margin-top: 10px;
}

/* ---------- 服务保障（详情页小项） ---------- */
.ay-assure { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 30px; }
.ay-assure__i {
  display: flex; gap: 12px; align-items: flex-start; padding: 16px 18px;
  background: var(--c-bg-soft); border: 1px solid var(--c-line); border-radius: var(--r-sm);
}
.ay-assure__i svg { flex: 0 0 auto; width: 20px; height: 20px; margin-top: 3px; color: var(--c-brand); }
.ay-assure__i h4 { font-size: 14px; font-weight: 600; }
.ay-assure__i p { margin-top: 4px; font-size: 12.5px; color: var(--c-text-3); line-height: 1.65; }

/* ---------- 页脚二维码 ---------- */
.ay-footer__qr { flex: 0 0 auto; width: 96px; padding: 7px; background: #fff; border-radius: var(--r-sm); }
.ay-footer__qr img { width: 100%; border-radius: 4px; display: block; }

/* ---------- 增强组件响应式 ---------- */
@media (max-width: 1280px) { .ay-hero__aside { display: none; } }
@media (max-width: 1200px) {
  .ay-steps { grid-template-columns: repeat(2, 1fr); gap: 22px 26px; }
  .ay-step:nth-child(2)::before { display: none; }
}
@media (max-width: 1024px) {
  .ay-topbar__tagline { display: none; }
  .ay-topbar__inner { justify-content: flex-end; }
  .ay-values { grid-template-columns: repeat(2, 1fr); }
  .ay-assure { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .ay-topbar__inner { height: 34px; }
  .ay-topbar__right { gap: 14px; font-size: 11.5px; }
  .ay-values { grid-template-columns: 1fr; }
  .ay-steps { grid-template-columns: 1fr; gap: 18px; }
  .ay-step::before { display: none; }
  .ay-listhead { flex-direction: column; align-items: flex-start; gap: 12px; }
  .ay-faq__q { padding: 15px 18px; font-size: 14px; }
  .ay-faq__a { margin: 0 18px 18px; }
}
@media (max-width: 560px) {
  .ay-topbar__right em { display: none; }
}

/* ---------- 产品卡序号（纯 CSS 计数，无数据依赖） ---------- */
.ay-grid--numbered { counter-reset: ayc; }
.ay-grid--numbered > .ay-card { position: relative; }
.ay-grid--numbered > .ay-card::before {
  content: counter(ayc, decimal-leading-zero);
  counter-increment: ayc;
  position: absolute; top: 12px; left: 14px; z-index: 3;
  font-family: var(--f-num); font-size: 11px; font-weight: 700; letter-spacing: .06em;
  color: var(--c-text-3); background: rgba(255, 255, 255, .92);
  padding: 3px 8px; border-radius: var(--r-pill); border: 1px solid var(--c-line);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  transition: color .3s var(--ease), border-color .3s var(--ease);
}
.ay-grid--numbered > .ay-card:hover::before { color: var(--c-brand); border-color: var(--c-brand-ring); }

/* ---------- 区块底部居中更多按钮 ---------- */
.ay-moremid { display: flex; justify-content: center; margin-top: 40px; }