/* ============================================================
   五量度 · 首页 Apple 流体视觉层（2026-10-24）
   仅作用于首页 body.ah，不改动全站其它页面的既有样式。
   设计原则：轻材质、大留白但无空洞、动效可中断、尊重减弱动效
   ============================================================ */

.ah {
  --ah-ink: #0a1a2b;
  --ah-ink-2: #4a5a6e;
  --ah-ink-3: #7b8a9c;
  --ah-line: rgba(12, 40, 70, .10);
  --ah-line-soft: rgba(12, 40, 70, .06);
  --ah-paper: #ffffff;
  --ah-paper-2: #f4f7fb;
  --ah-brand: #16a6c7;
  --ah-brand-deep: #0d6f8a;
  --ah-deep: #103a56;
  --ah-deep-2: #0a2438;
  --ah-accent: #f4a72c;
  --ah-spring: cubic-bezier(.22, 1, .36, 1);
  --ah-spring-soft: cubic-bezier(.34, 1.25, .48, 1);
  --ah-ease: cubic-bezier(.16, 1, .3, 1);
  --ah-shadow-1: 0 1px 2px rgba(10, 30, 55, .04), 0 10px 30px rgba(10, 30, 55, .06);
  --ah-shadow-2: 0 2px 8px rgba(10, 30, 55, .06), 0 28px 64px rgba(10, 30, 55, .13);
  --ah-shadow-3: 0 40px 90px rgba(10, 30, 55, .18);
  background: var(--ah-paper);
}

/* 滚动进度：极细，不抢视线 */
.ah-progress {
  position: fixed; left: 0; top: 0; height: 2px; width: 100%;
  z-index: 90; pointer-events: none; background: transparent;
}
.ah-progress i {
  display: block; height: 100%; width: 0;
  background: linear-gradient(90deg, var(--ah-brand), #4ecdc4 55%, var(--ah-accent));
  transition: width .12s linear;
}

/* 段落节奏：统一行距与字号层次 */
.ah p { line-height: 1.78; }
.ah h1, .ah h2, .ah h3 { letter-spacing: -.015em; }

/* ============ 通用区块 ============ */
.ah-sec { padding: clamp(48px, 5.6vw, 88px) 0; position: relative; }
.ah-sec--soft { background: var(--ah-paper-2); }
.ah-sec--tint {
  background:
    radial-gradient(900px 420px at 12% 0%, rgba(22, 166, 199, .10), transparent 62%),
    radial-gradient(700px 360px at 92% 12%, rgba(244, 167, 44, .10), transparent 60%),
    var(--ah-paper);
}

.ah-head { max-width: 720px; margin: 0 auto clamp(30px, 4vw, 54px); text-align: center; }
.ah-kicker {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase;
  color: var(--ah-brand-deep);
}
.ah-kicker::before, .ah-kicker::after {
  content: ""; width: 22px; height: 1px; background: currentColor; opacity: .35;
}
.ah-head h2 {
  margin: 14px 0 0; font-size: clamp(25px, 3.3vw, 40px); line-height: 1.2; color: var(--ah-ink);
}
.ah-head p { margin: 14px auto 0; max-width: 560px; font-size: 16px; color: var(--ah-ink-2); }

.ah-head--left { margin-left: 0; text-align: left; }
.ah-head--left p { margin-left: 0; }

/* ============ 首屏 ============ */
.ah-hero {
  position: relative; overflow: hidden; isolation: isolate;
  padding: clamp(44px, 5.4vw, 78px) 0 clamp(36px, 4.4vw, 60px);
  background: linear-gradient(180deg, #fbfdff 0%, #f3f8fb 58%, #ffffff 100%);
}
.ah-hero-bg { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.ah-hero-bg .blob {
  position: absolute; border-radius: 50%; filter: blur(64px); opacity: .55;
  will-change: transform;
}
.ah-hero-bg .b1 {
  width: 460px; height: 460px; left: -120px; top: -140px;
  background: radial-gradient(circle at 40% 40%, rgba(22,166,199,.55), rgba(22,166,199,0) 70%);
  animation: ahDrift1 26s ease-in-out infinite alternate;
}
.ah-hero-bg .b2 {
  width: 520px; height: 520px; right: -140px; top: -80px;
  background: radial-gradient(circle at 60% 45%, rgba(78,205,196,.42), rgba(78,205,196,0) 70%);
  animation: ahDrift2 32s ease-in-out infinite alternate;
}
.ah-hero-bg .b3 {
  width: 380px; height: 380px; left: 46%; bottom: -220px;
  background: radial-gradient(circle at 50% 50%, rgba(244,167,44,.28), rgba(244,167,44,0) 70%);
  animation: ahDrift3 24s ease-in-out infinite alternate;
}
.ah-hero-bg .ah-grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(12,40,70,.045) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(12,40,70,.045) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(760px 420px at 50% 22%, #000 0%, transparent 76%);
  mask-image: radial-gradient(760px 420px at 50% 22%, #000 0%, transparent 76%);
}
@keyframes ahDrift1 { to { transform: translate3d(60px, 40px, 0) scale(1.08); } }
@keyframes ahDrift2 { to { transform: translate3d(-70px, 54px, 0) scale(1.12); } }
@keyframes ahDrift3 { to { transform: translate3d(40px, -50px, 0) scale(1.1); } }

.ah-hero-inner {
  display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
  gap: clamp(28px, 4vw, 64px); align-items: center;
}
.ah-eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 7px 15px 7px 11px; border-radius: 999px;
  background: rgba(255,255,255,.75); border: 1px solid rgba(22,166,199,.24);
  box-shadow: 0 6px 18px rgba(15,60,90,.07);
  font-size: 12.5px; font-weight: 600; color: var(--ah-deep);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.ah-eyebrow .dot {
  width: 7px; height: 7px; border-radius: 50%; background: #14b8a6;
  box-shadow: 0 0 0 0 rgba(20,184,166,.55); animation: ahPulse 2.4s ease-out infinite;
}
@keyframes ahPulse {
  0% { box-shadow: 0 0 0 0 rgba(20,184,166,.5); }
  70% { box-shadow: 0 0 0 9px rgba(20,184,166,0); }
  100% { box-shadow: 0 0 0 0 rgba(20,184,166,0); }
}
.ah-hero h1 {
  margin: 20px 0 0;
  font-size: clamp(33px, 4.9vw, 62px);
  line-height: 1.1; font-weight: 800; color: var(--ah-ink);
  letter-spacing: -.03em;
}
.ah-hero h1 em {
  font-style: normal;
  background: linear-gradient(96deg, var(--ah-brand-deep) 0%, #1c9fb8 46%, #3fbfb2 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.ah-lead {
  margin: 20px 0 0; max-width: 30em; font-size: clamp(15px, 1.15vw, 17px);
  color: var(--ah-ink-2);
}
.ah-cta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 30px; }
.ah-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 24px; border-radius: 999px; font-size: 15px; font-weight: 700;
  transition: transform .5s var(--ah-spring-soft), box-shadow .4s, background-color .3s, color .3s;
  will-change: transform;
}
.ah-btn:hover { transform: translateY(-2px) scale(1.015); }
.ah-btn:active { transform: scale(.97); transition-duration: .12s; }
.ah-btn--primary {
  background: linear-gradient(135deg, #1799b8, #0e7a96); color: #fff;
  box-shadow: 0 10px 26px rgba(14,122,150,.28);
}
.ah-btn--primary:hover { box-shadow: 0 16px 38px rgba(14,122,150,.34); color: #fff; }
.ah-btn--glass {
  background: rgba(255,255,255,.72); color: var(--ah-deep);
  border: 1px solid rgba(12,40,70,.12);
  -webkit-backdrop-filter: blur(10px) saturate(1.4); backdrop-filter: blur(10px) saturate(1.4);
}
.ah-btn--glass:hover { background: #fff; color: var(--ah-brand-deep); box-shadow: var(--ah-shadow-1); }
.ah-btn svg { width: 18px; height: 18px; }
.ah-link {
  font-size: 14.5px; font-weight: 600; color: var(--ah-brand-deep);
  display: inline-flex; align-items: center; gap: 6px;
}
.ah-link i { transition: transform .45s var(--ah-spring); font-style: normal; }
.ah-link:hover i { transform: translateX(4px); }

.ah-hero-stats {
  display: flex; flex-wrap: wrap; gap: 10px 30px; margin: 34px 0 0; padding: 0;
  border-top: 1px solid var(--ah-line-soft); padding-top: 22px;
}
.ah-hero-stats > div { min-width: 92px; }
.ah-hero-stats b {
  display: block; font-size: 25px; line-height: 1.15; color: var(--ah-ink);
  letter-spacing: -.02em; font-weight: 800;
}
.ah-hero-stats span { display: block; margin-top: 3px; font-size: 12.5px; color: var(--ah-ink-3); }

/* 右侧舞台：照片 + 玻璃联动卡 */
.ah-stage { position: relative; transform-style: preserve-3d; }
.ah-stage-in {
  position: relative;
  transform: perspective(1100px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
  transition: transform .5s var(--ah-ease);
  will-change: transform;
}
.ah-stage-photo {
  position: relative; margin: 0; overflow: hidden;
  border-radius: 26px; background: #dfe8ef;
  box-shadow: var(--ah-shadow-3);
  aspect-ratio: 4 / 3.15;
}
.ah-stage-photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.ah-stage-photo::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(6,26,42,0) 46%, rgba(6,26,42,.42) 100%);
}
.ah-badge-live {
  position: absolute; z-index: 2; left: 16px; top: 16px;
  display: inline-flex; align-items: center; gap: 7px;
  padding: 7px 13px; border-radius: 999px;
  background: rgba(8,26,42,.55); color: #fff; font-size: 12px; font-weight: 600;
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,.22);
}
.ah-badge-live i {
  width: 6px; height: 6px; border-radius: 50%; background: #45e0c2;
  animation: ahBlink 1.8s ease-in-out infinite;
}
@keyframes ahBlink { 50% { opacity: .35; } }

.ah-glass {
  position: absolute; z-index: 3; left: -18px; bottom: -26px; width: min(330px, 88%);
  padding: 16px 17px 14px; border-radius: 20px;
  background: rgba(255,255,255,.82);
  border: 1px solid rgba(255,255,255,.75);
  box-shadow: 0 24px 60px rgba(9,30,50,.22);
  -webkit-backdrop-filter: blur(18px) saturate(1.7); backdrop-filter: blur(18px) saturate(1.7);
  animation: ahFloat 7s ease-in-out infinite alternate;
}
@keyframes ahFloat { to { transform: translateY(-9px); } }
.ah-glass-head { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.ah-glass-head b { font-size: 14px; color: var(--ah-ink); }
.ah-glass-head span { font-size: 11.5px; color: var(--ah-ink-3); }
.ah-flow { list-style: none; margin: 12px 0 0; padding: 0; }
.ah-flow li {
  position: relative; display: flex; align-items: center; gap: 9px;
  font-size: 12.5px; color: var(--ah-ink-2); padding: 5px 0 5px 2px;
}
.ah-flow li .d {
  width: 16px; height: 16px; border-radius: 50%; flex: 0 0 16px;
  border: 1.5px solid rgba(22,166,199,.45); background: #fff;
  display: grid; place-items: center;
}
.ah-flow li .d::after {
  content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--ah-brand);
  transform: scale(0); transition: transform .5s var(--ah-spring-soft);
}
.ah-flow li.on .d { border-color: transparent; background: var(--ah-brand); }
.ah-flow li.on .d::after { background: #fff; transform: scale(1); }
.ah-flow li.on { color: var(--ah-ink); font-weight: 600; }
.ah-flow li:nth-child(2) { animation: ahStep 6s ease-in-out infinite; }
.ah-flow li:nth-child(3) { animation: ahStep 6s ease-in-out infinite; animation-delay: 2s; }
@keyframes ahStep { 0%, 60%, 100% { opacity: .55; } 12%, 34% { opacity: 1; } }

.ah-scroll {
  display: inline-flex; align-items: center; gap: 7px; margin: 26px auto 0;
  font-size: 12.5px; color: var(--ah-ink-3); letter-spacing: .08em;
}
.ah-scroll-wrap { text-align: center; }
.ah-scroll span {
  display: block; width: 18px; height: 26px; border: 1.4px solid rgba(12,40,70,.2);
  border-radius: 10px; position: relative;
}
.ah-scroll span::after {
  content: ""; position: absolute; left: 50%; top: 6px; width: 3px; height: 6px;
  margin-left: -1.5px; border-radius: 2px; background: var(--ah-brand);
  animation: ahScrollDot 2s var(--ah-ease) infinite;
}
@keyframes ahScrollDot { 0% { opacity: 0; transform: translateY(0); } 30% { opacity: 1; } 100% { opacity: 0; transform: translateY(9px); } }

/* ============ 服务卡 ============ */
.ah-svc-grid {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(14px, 1.6vw, 22px);
}
.ah-svc {
  position: relative; display: flex; flex-direction: column;
  padding: 22px 22px 20px; border-radius: 22px;
  background: #fff; border: 1px solid var(--ah-line);
  box-shadow: 0 1px 2px rgba(10,30,55,.03);
  transition: transform .55s var(--ah-spring), box-shadow .45s var(--ah-ease),
              border-color .3s ease, background-color .3s ease;
  will-change: transform;
}
.ah-svc::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  background: radial-gradient(240px 160px at var(--mx, 50%) var(--my, 0%), rgba(22,166,199,.10), transparent 70%);
  opacity: 0; transition: opacity .4s ease;
}
.ah-svc:hover { transform: translateY(-6px); box-shadow: var(--ah-shadow-2); border-color: rgba(22,166,199,.32); }
.ah-svc:hover::after { opacity: 1; }
.ah-svc-ico {
  width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center;
  background: linear-gradient(150deg, rgba(22,166,199,.14), rgba(22,166,199,.04));
  color: var(--ah-brand-deep);
  transition: background .45s, color .45s, transform .55s var(--ah-spring-soft);
}
.ah-svc-ico svg { width: 23px; height: 23px; }
.ah-svc:hover .ah-svc-ico {
  background: linear-gradient(150deg, #1aa2c0, #0f7a95); color: #fff; transform: scale(1.06) rotate(-4deg);
}
.ah-svc h3 { margin: 15px 0 0; font-size: 18px; color: var(--ah-ink); letter-spacing: -.01em; }
.ah-svc p { margin: 7px 0 0; font-size: 14px; color: var(--ah-ink-2); line-height: 1.72; }
.ah-svc .tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
.ah-svc .tags span {
  font-size: 12px; color: var(--ah-ink-3); padding: 4px 9px; border-radius: 7px;
  background: var(--ah-paper-2); transition: color .3s, background .3s;
}
.ah-svc:hover .tags span { color: var(--ah-brand-deep); background: rgba(22,166,199,.09); }
.ah-svc-more {
  margin-top: auto; padding-top: 14px; font-size: 13px; font-weight: 700; color: var(--ah-brand-deep);
  display: inline-flex; align-items: center; gap: 5px; opacity: .45; transform: translateY(3px);
  transition: opacity .35s, transform .45s var(--ah-spring);
}
.ah-svc:hover .ah-svc-more { opacity: 1; transform: none; }

/* ============ 场景图卡 ============ */
.ah-scene-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.ah-scene {
  position: relative; display: block; overflow: hidden; border-radius: 20px;
  aspect-ratio: 4 / 4.5; background: #e7eef4;
  box-shadow: var(--ah-shadow-1);
  transition: transform .6s var(--ah-spring), box-shadow .5s;
}
.ah-scene:hover { transform: translateY(-6px); box-shadow: var(--ah-shadow-2); }
.ah-scene img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform 1.1s var(--ah-ease);
}
.ah-scene:hover img { transform: scale(1.055); }
.ah-scene::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(6,24,38,.05) 0%, rgba(6,24,38,0) 34%, rgba(6,24,38,.78) 100%);
}
.ah-scene-cap { position: absolute; z-index: 2; left: 0; right: 0; bottom: 0; padding: 18px 17px 17px; color: #fff; }
.ah-scene-cap .tag {
  display: inline-block; font-size: 11.5px; letter-spacing: .04em;
  padding: 4px 9px; border-radius: 999px; margin-bottom: 9px;
  background: rgba(255,255,255,.18); border: 1px solid rgba(255,255,255,.3);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
}
.ah-scene-cap b { display: block; font-size: 16px; letter-spacing: -.01em; }
.ah-scene-cap span.txt {
  display: block; margin-top: 6px; font-size: 12.5px; line-height: 1.6; color: rgba(255,255,255,.82);
  max-height: 0; overflow: hidden; opacity: 0;
  transition: max-height .5s var(--ah-ease), opacity .4s, margin-top .4s;
}
.ah-scene:hover .ah-scene-cap span.txt,
.ah-scene:focus-visible .ah-scene-cap span.txt { max-height: 60px; opacity: 1; }

/* ============ 仪器图块 ============ */
.ah-prod-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.ah-prod {
  position: relative; display: block; overflow: hidden; border-radius: 22px;
  background: linear-gradient(160deg, #f7fafc, #eaf1f6);
  aspect-ratio: 1 / 1; box-shadow: var(--ah-shadow-1);
  transition: transform .6s var(--ah-spring), box-shadow .5s;
}
.ah-prod:hover { transform: translateY(-5px); box-shadow: var(--ah-shadow-2); }
.ah-prod img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.1s var(--ah-ease); }
.ah-prod:hover img { transform: scale(1.05); }
.ah-prod::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(8,26,42,0) 44%, rgba(8,26,42,.72) 100%);
}
.ah-prod-body { position: absolute; z-index: 2; left: 18px; right: 18px; bottom: 16px; color: #fff; }
.ah-prod-body b { display: block; font-size: 16.5px; letter-spacing: -.01em; }
.ah-prod-body span { display: block; margin-top: 4px; font-size: 12.5px; color: rgba(255,255,255,.8); }
.ah-prod-body em {
  display: inline-flex; align-items: center; gap: 5px; margin-top: 10px;
  font-style: normal; font-size: 12.5px; font-weight: 700; color: #bff0fa;
  opacity: 0; transform: translateY(5px);
  transition: opacity .35s, transform .45s var(--ah-spring);
}
.ah-prod:hover .ah-prod-body em { opacity: 1; transform: none; }

/* ============ 案例 ============ */
.ah-case-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.ah-case {
  display: flex; flex-direction: column; overflow: hidden; border-radius: 20px;
  background: #fff; border: 1px solid var(--ah-line); box-shadow: var(--ah-shadow-1);
  transition: transform .6s var(--ah-spring), box-shadow .5s;
}
.ah-case:hover { transform: translateY(-6px); box-shadow: var(--ah-shadow-2); }
.ah-case-pic { overflow: hidden; aspect-ratio: 16 / 10; background: #eef3f7; }
.ah-case-pic img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.1s var(--ah-ease); }
.ah-case:hover .ah-case-pic img { transform: scale(1.06); }
.ah-case-info { padding: 14px 16px 16px; display: flex; flex-direction: column; flex: 1 1 auto; }
.ah-case-info b { display: block; flex: 1 1 auto; font-size: 14.5px; line-height: 1.55; color: var(--ah-ink); }
.ah-case-info span { display: block; margin-top: 7px; font-size: 12px; color: var(--ah-ink-3); }

/* ============ 品牌墙（走马灯） ============ */
.ah-wall { position: relative; }
.ah-mq {
  overflow: hidden; padding: 4px 0;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
}
.ah-mq + .ah-mq { margin-top: 10px; }
.ah-mq-track { display: flex; width: max-content; animation: ahMq 46s linear infinite; }
.ah-mq-set { display: flex; gap: 10px; padding-right: 10px; }
.ah-mq--rev .ah-mq-track { animation-direction: reverse; animation-duration: 52s; }
.ah-mq:hover .ah-mq-track, .ah-mq:focus-within .ah-mq-track { animation-play-state: paused; }
@keyframes ahMq { from { transform: translate3d(0, 0, 0); } to { transform: translate3d(-50%, 0, 0); } }
.ah-logo {
  flex: 0 0 auto; display: grid; place-items: center;
  width: 154px; height: 66px; padding: 10px 16px; border-radius: 14px;
  background: #fff; border: 1px solid var(--ah-line-soft);
  transition: transform .5s var(--ah-spring), box-shadow .4s, border-color .3s, background .3s;
}
.ah-logo img {
  max-width: 100%; max-height: 100%; width: auto; height: auto;
  object-fit: contain; filter: grayscale(.88) opacity(.86); transition: filter .45s ease;
}
.ah-logo:hover {
  transform: translateY(-3px) scale(1.03); box-shadow: 0 14px 30px rgba(10,30,55,.12);
  border-color: rgba(22,166,199,.3);
}
.ah-logo:hover img { filter: none; }
.ah-wall-note {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 8px 14px;
  margin-top: 26px; font-size: 13.5px; color: var(--ah-ink-2);
}
.ah-wall-note a { font-weight: 700; }

/* ============ 深色双人带（俱乐部 / 工程师） ============ */
.ah-band {
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  border-radius: 26px; overflow: hidden; background: var(--ah-deep-2);
  box-shadow: var(--ah-shadow-3);
}
.ah-band--rev .ah-band-fig { order: 2; }
.ah-band-fig { position: relative; margin: 0; overflow: hidden; min-height: 380px; }
.ah-band-fig img {
  position: absolute; inset: -8% 0; width: 100%; height: 116%;
  object-fit: cover; will-change: transform;
}
.ah-band-fig::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(10,36,56,0) 48%, rgba(10,36,56,.9) 92%, var(--ah-deep-2) 100%);
}
.ah-band--rev .ah-band-fig::after {
  background: linear-gradient(270deg, rgba(10,36,56,0) 48%, rgba(10,36,56,.9) 92%, var(--ah-deep-2) 100%);
}
.ah-band-body { padding: clamp(28px, 3.4vw, 46px); color: #fff; display: flex; flex-direction: column; justify-content: center; }
.ah-band-badge {
  align-self: flex-start; font-size: 12px; padding: 5px 13px; border-radius: 999px;
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.24); color: #eaf6fb;
}
.ah-band h2 { margin: 14px 0 0; font-size: clamp(21px, 2.3vw, 29px); line-height: 1.34; color: #fff; }
.ah-band p { margin: 12px 0 0; font-size: 14.5px; line-height: 1.8; color: #c4d6e4; }
.ah-band-nums { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin: 22px 0 0; }
.ah-band-num {
  padding: 12px 10px; border-radius: 13px; text-align: center;
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.13);
  transition: background .3s, transform .5s var(--ah-spring);
}
.ah-band-num:hover { background: rgba(255,255,255,.12); transform: translateY(-2px); }
.ah-band-num b { display: block; font-size: 19px; color: #fff; line-height: 1.3; }
.ah-band-num span { display: block; margin-top: 3px; font-size: 11.5px; color: #9fb6ca; }
.ah-band-tags { display: flex; flex-wrap: wrap; gap: 7px; margin: 18px 0 0; }
.ah-band-tags span {
  font-size: 12.5px; color: #dceaf3; background: rgba(255,255,255,.09);
  padding: 5px 10px; border-radius: 7px;
}
.ah-band-cta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.ah-band-cta .ah-btn--ghost {
  background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.35);
}
.ah-band-cta .ah-btn--ghost:hover { background: rgba(255,255,255,.12); color: #fff; }

/* ============ 会议活动 ============ */
.ah-event {
  position: relative; overflow: hidden; border-radius: 24px; padding: clamp(22px, 2.6vw, 34px);
  background: linear-gradient(120deg, #0f3b56 0%, #12506f 46%, #17808f 100%);
  color: #fff; display: flex; flex-wrap: wrap; align-items: center; gap: 20px;
  justify-content: space-between; box-shadow: var(--ah-shadow-2);
}
.ah-event::after {
  content: ""; position: absolute; inset: -40% -10%; pointer-events: none;
  background: linear-gradient(100deg, transparent 40%, rgba(255,255,255,.16) 50%, transparent 60%);
  transform: translateX(-40%); animation: ahSheen 6.5s ease-in-out infinite;
}
@keyframes ahSheen { 0%, 55% { transform: translateX(-45%); } 85%, 100% { transform: translateX(45%); } }
.ah-event-main { position: relative; z-index: 2; min-width: 260px; flex: 1 1 460px; }
.ah-event .pill {
  display: inline-flex; align-items: center; gap: 7px; font-size: 12px; font-weight: 600;
  padding: 5px 12px; border-radius: 999px; background: rgba(255,255,255,.16);
  border: 1px solid rgba(255,255,255,.3);
}
.ah-event .pill i { width: 6px; height: 6px; border-radius: 50%; background: #ffd479; animation: ahBlink 1.8s infinite; }
.ah-event h3 { margin: 11px 0 0; font-size: clamp(17px, 1.9vw, 21px); color: #fff; line-height: 1.45; }
.ah-event p { margin: 7px 0 0; font-size: 13.5px; color: rgba(255,255,255,.82); }
.ah-event-actions { position: relative; z-index: 2; display: flex; flex-wrap: wrap; gap: 10px; }
.ah-event-actions .ah-btn { padding: 12px 20px; font-size: 14px; }

/* ============ 品类 / 城市 chips ============ */
.ah-chips-card {
  background: #fff; border: 1px solid var(--ah-line); border-radius: 24px;
  padding: clamp(22px, 2.6vw, 34px); box-shadow: var(--ah-shadow-1);
}
.ah-chips-head {
  display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between;
  gap: 10px; margin-bottom: 4px;
}
.ah-chips-head h2 { font-size: clamp(19px, 2vw, 23px); color: var(--ah-ink); }
.ah-chips-head a { font-size: 13.5px; font-weight: 700; }
.ah-chips-label { margin: 18px 0 9px; font-size: 12px; letter-spacing: .12em; color: var(--ah-ink-3); text-transform: uppercase; }
.ah-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.ah-chip {
  display: inline-flex; align-items: center;
  padding: 8px 15px; border-radius: 999px; font-size: 13.5px; color: var(--ah-deep);
  background: var(--ah-paper-2); border: 1px solid transparent;
  transition: transform .45s var(--ah-spring-soft), background .3s, color .3s, border-color .3s, box-shadow .3s;
}
.ah-chip:hover {
  background: #fff; color: var(--ah-brand-deep); border-color: rgba(22,166,199,.42);
  transform: translateY(-2px); box-shadow: 0 8px 18px rgba(10,30,55,.08);
}
.ah-chip:active { transform: scale(.97); }

/* ============ FAQ ============ */
.ah-faq { display: grid; grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr); gap: clamp(24px, 3.4vw, 56px); align-items: start; }
.ah-faq-intro h2 { font-size: clamp(24px, 2.8vw, 34px); line-height: 1.24; color: var(--ah-ink); }
.ah-faq-intro p { margin: 14px 0 0; font-size: 15px; color: var(--ah-ink-2); }
.ah-faq-intro .ah-btn { margin-top: 22px; }
.ah-acc { border-top: 1px solid var(--ah-line); }
.ah-acc details { border-bottom: 1px solid var(--ah-line); }
.ah-acc summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; gap: 14px;
  padding: 18px 4px; font-size: 15.5px; font-weight: 600; color: var(--ah-ink);
  transition: color .25s;
}
.ah-acc summary::-webkit-details-marker { display: none; }
.ah-acc summary:hover { color: var(--ah-brand-deep); }
.ah-acc summary .ico {
  margin-left: auto; flex: 0 0 22px; width: 22px; height: 22px; border-radius: 50%;
  border: 1px solid var(--ah-line); position: relative; transition: background .3s, border-color .3s, transform .5s var(--ah-spring);
}
.ah-acc summary .ico::before, .ah-acc summary .ico::after {
  content: ""; position: absolute; left: 50%; top: 50%; background: var(--ah-ink-2);
  transform: translate(-50%, -50%); transition: background .3s, transform .45s var(--ah-spring);
}
.ah-acc summary .ico::before { width: 9px; height: 1.5px; }
.ah-acc summary .ico::after { width: 1.5px; height: 9px; }
.ah-acc details[open] summary .ico { background: var(--ah-brand); border-color: var(--ah-brand); transform: rotate(90deg); }
.ah-acc details[open] summary .ico::before, .ah-acc details[open] summary .ico::after { background: #fff; }
.ah-acc details[open] summary .ico::after { transform: translate(-50%, -50%) scaleY(0); }
.ah-acc .ans { overflow: hidden; }
.ah-acc .ans p { margin: 0 4px 18px; font-size: 14px; color: var(--ah-ink-2); line-height: 1.85; }

/* ============ 服务要素表 ============ */
.ah-facts {
  margin-top: clamp(28px, 3.4vw, 46px); padding: clamp(20px, 2.4vw, 30px);
  border-radius: 20px; background: var(--ah-paper-2); border: 1px solid var(--ah-line-soft);
}
.ah-facts h2 { font-size: 17px; color: var(--ah-ink); }
.ah-facts .def { margin: 8px 0 16px; font-size: 13.5px; color: var(--ah-ink-2); }
.ah-facts table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.ah-facts th, .ah-facts td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--ah-line); vertical-align: top; }
.ah-facts th { width: 130px; color: var(--ah-ink-3); font-weight: 600; }
.ah-facts td { color: var(--ah-ink-2); }
.ah-facts ol { margin: 14px 0 0; padding-left: 20px; font-size: 13.5px; color: var(--ah-ink-2); }
.ah-facts ol li { margin: 6px 0; line-height: 1.7; }
.ah-facts .flow-title { margin: 16px 0 0; font-size: 13.5px; color: var(--ah-ink); }

/* ============ 资讯卡 ============ */
.ah-news-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.ah-news {
  display: flex; flex-direction: column; padding: 22px 22px 18px; border-radius: 22px;
  background: #fff; border: 1px solid var(--ah-line); box-shadow: 0 1px 2px rgba(10,30,55,.03);
  transition: transform .5s var(--ah-spring), box-shadow .45s;
}
.ah-news:hover { transform: translateY(-4px); box-shadow: var(--ah-shadow-1); }
.ah-news h4 { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; font-size: 16px; color: var(--ah-ink); }
.ah-news h4 a { font-size: 12.5px; font-weight: 600; color: var(--ah-ink-3); }
.ah-news h4 a:hover { color: var(--ah-brand-deep); }
.ah-news ul { margin: 14px 0 0; }
.ah-news li + li { border-top: 1px dashed var(--ah-line); }
.ah-news li a {
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  padding: 7px 0; font-size: 13px; line-height: 1.55; color: var(--ah-ink-2);
  transition: color .25s, padding-left .35s var(--ah-spring);
}
.ah-news li a:hover { color: var(--ah-brand-deep); padding-left: 4px; }
.ah-news time, .ah-news .kind {
  display: inline-block; margin-left: 6px; font-size: 11.5px; color: var(--ah-ink-3); white-space: nowrap;
}

/* ============ 响应式 ============ */
@media (max-width: 1080px) {
  .ah-hero-inner { grid-template-columns: minmax(0, 1fr); gap: 40px; }
  .ah-stage { max-width: 620px; }
  .ah-glass { left: 0; bottom: -18px; }
  .ah-scene-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ah-case-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ah-faq { grid-template-columns: minmax(0, 1fr); }
  .ah-band { grid-template-columns: minmax(0, 1fr); }
  .ah-band--rev .ah-band-fig { order: 0; }
  .ah-band-fig { min-height: 240px; }
  .ah-band-fig::after, .ah-band--rev .ah-band-fig::after {
    background: linear-gradient(180deg, rgba(10,36,56,0) 40%, rgba(10,36,56,.92) 100%);
  }
}
@media (max-width: 900px) {
  .ah-svc-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ah-prod-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ah-news-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 620px) {
  .ah-hero { padding-top: 32px; }
  .ah-hero h1 { font-size: 32px; }
  .ah-hero-stats { gap: 12px 20px; }
  .ah-hero-stats b { font-size: 21px; }
  .ah-svc-grid, .ah-prod-grid, .ah-scene-grid, .ah-case-grid { grid-template-columns: minmax(0, 1fr); }
  .ah-glass { position: relative; left: 0; bottom: 0; width: 100%; margin-top: 14px; animation: none; }
  .ah-stage-photo { border-radius: 20px; }
  .ah-logo { width: 128px; height: 58px; }
  .ah-band-nums { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 7px; }
  .ah-band-num b { font-size: 15px; }
  .ah-event { gap: 14px; }
}

/* ============ 无障碍：减弱动效 ============ */
@media (prefers-reduced-motion: reduce) {
  .ah-hero-bg .blob,
  .ah-glass, .ah-flow li, .ah-event::after,
  .ah-badge-live i, .ah-eyebrow .dot, .ah-scroll span::after { animation: none !important; }
  .ah-mq-track { animation: none !important; transform: none !important; }
  .ah-mq { overflow-x: auto; -webkit-mask-image: none; mask-image: none; }
  .ah-stage-in { transform: none !important; }
  .ah-svc, .ah-scene, .ah-prod, .ah-case, .ah-btn, .ah-chip { transition-duration: .001ms !important; }
  .ah-scene-cap span.txt { max-height: none; opacity: 1; }
}

/* ============ 触屏 / 无 hover 设备：信息不靠悬停才出现 ============ */
@media (hover: none) {
  .ah-scene-cap span.txt { max-height: 60px; opacity: 1; margin-top: 6px; }
  .ah-prod-body em { opacity: 1; transform: none; }
  .ah-svc-more { opacity: 1; transform: none; }
  .ah-scene:hover img, .ah-prod:hover img, .ah-case:hover .ah-case-pic img { transform: none; }
}

/* ============ 页头：轻材质（首页更接近原生 App 的顶栏） ============ */
.ah .header { background: rgba(255, 255, 255, .82); }
.ah .header.is-scrolled { background: rgba(255, 255, 255, .9); }
@supports ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
  .ah .header { -webkit-backdrop-filter: saturate(1.6) blur(14px); backdrop-filter: saturate(1.6) blur(14px); }
}

/* ============ 左对齐标题行（打破居中节奏） ============ */
.ah-head-row {
  display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between;
  gap: 14px 28px; margin-bottom: clamp(24px, 3vw, 40px);
}
.ah-head-row .ah-head { margin: 0; text-align: left; }
.ah-head-row .ah-head p { margin-left: 0; }
.ah-head-row > .ah-side { padding-bottom: 6px; }

/* ============ 卡片描边更清晰（浅底上不糊） ============ */
.ah-sec--soft .ah-svc, .ah-sec--soft .ah-news { border-color: rgba(12, 40, 70, .08); }

/* ============ 移动端：两列排布，缩短页面长度 ============ */
@media (max-width: 620px) {
  .ah-prod-grid, .ah-scene-grid, .ah-case-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .ah-scene { aspect-ratio: 3 / 4; border-radius: 16px; }
  .ah-scene-cap { padding: 12px 12px 12px; }
  .ah-scene-cap b { font-size: 14px; }
  .ah-scene-cap .tag { font-size: 10.5px; margin-bottom: 6px; }
  .ah-scene-cap span.txt { display: none; }
  .ah-prod { border-radius: 16px; }
  .ah-prod-body { left: 12px; right: 12px; bottom: 11px; }
  .ah-prod-body b { font-size: 13.5px; }
  .ah-prod-body span { font-size: 11px; }
  .ah-prod-body em { display: none; }
  .ah-case { border-radius: 16px; }
  .ah-case-info { padding: 10px 12px 12px; }
  .ah-case-info b { font-size: 13px; }
  .ah-hero-stats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 12px; padding-top: 18px; }
  .ah-cta { gap: 10px; }
  .ah-cta .ah-btn { flex: 1 1 auto; justify-content: center; padding: 13px 16px; }
  .ah-cta .ah-link { flex: 1 1 100%; justify-content: center; margin-top: 2px; }
}


/* ============ 键盘焦点：清晰可见（不依赖鼠标） ============ */
.ah a:focus-visible, .ah summary:focus-visible, .ah button:focus-visible {
  outline: 2px solid var(--ah-brand); outline-offset: 3px; border-radius: 8px;
}