/* ============================================================
   中析研究所（yjssi）新模板 v17
   视觉升级：玻璃拟态导航 / 渐变强调色 / 大菜单 / 微交互 / 入场动画
   ============================================================ */

:root {
  --teal: #0d9488;
  --teal-deep: #0f766e;
  --teal-light: #e6f7f4;
  --cyan: #22d3ee;
  --orange: #ff7a1a;
  --orange-deep: #e86100;
  --ink: #0f1f38;
  --ink-soft: #48587a;
  --ink-faint: #93a0b8;
  --line: #e6ecf4;
  --bg: #f4f7fa;

  --radius: 12px;
  --radius-lg: 16px;
  --shadow-card: 0 1px 2px rgba(15, 31, 56, .05), 0 6px 18px rgba(15, 31, 56, .05);
  --shadow-pop: 0 10px 34px -8px rgba(13, 148, 136, .16);
  --shadow-deep: 0 22px 50px -16px rgba(13, 30, 56, .35);

  --container: 1200px;

  --text-sm: .84rem;
  --text-xs: .74rem;

  --duration-fast: 150ms;
  --duration-normal: 320ms;
  --ease-out: cubic-bezier(.16, 1, .3, 1);

  --grad-brand: linear-gradient(135deg, #14b8a6, #0d9488);
  --grad-text: linear-gradient(92deg, #0d9488, #06b6d4);
  --font-stack: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-stack);
  color: var(--ink);
  background: #fff;
  font-size: 15px;
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; transition: color var(--duration-fast) ease; }
a:hover { color: var(--teal); }
ul, ol { list-style: none; }
img { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; border: 0; }
::selection { background: #b9ece4; }

:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; border-radius: 4px; }

.container { width: var(--container); max-width: 100%; margin: 0 auto; }

/* 滚动入场动画（仅当 html.js 存在时隐藏，防无 JS 白屏） */
html.js [data-rv] {
  opacity: 0; transform: translateY(24px);
  transition: opacity .7s var(--ease-out), transform .7s var(--ease-out);
}
html.js [data-rv].in { opacity: 1; transform: none; }

/* ============ 顶部工具条（浅色） ============ */
.topbar {
  background: #f5f8fb;
  font-size: var(--text-xs);
  color: #5b6b86;
  border-bottom: 1px solid var(--line);
}
.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 36px;
}
/* 欢迎语前的呼吸圆点 */
.topbar-inner > span:first-child { display: flex; align-items: center; gap: 8px; color: #33445f; }
.topbar-inner > span:first-child::before {
  content: ""; width: 7px; height: 7px; border-radius: 50%;
  background: #10b981; box-shadow: 0 0 0 0 rgba(16, 185, 129, .45);
  animation: live-dot 2.4s ease-out infinite;
}
@keyframes live-dot {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, .45); }
  70% { box-shadow: 0 0 0 7px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}
.topbar-links { display: flex; align-items: center; }
.topbar-links a { color: #5b6b86; padding: 0 10px; }
.topbar-links a:hover { color: var(--ink); }
.topbar-hotline {
  color: #33445f; margin-left: 10px; padding-left: 18px;
  border-left: 1px solid rgba(15, 31, 56, .12);
}
.topbar-hotline b {
  color: var(--orange-deep); font-size: var(--text-sm); margin-left: 4px; letter-spacing: .5px;
  font-variant-numeric: tabular-nums;
}

/* ============ 主头部 ============ */
.header { padding: 22px 0 20px; border-bottom: 1px solid var(--line); background: #fff; }
.header-inner { display: flex; align-items: center; gap: 36px; }

.logo-block { display: flex; align-items: center; flex-shrink: 0; filter: drop-shadow(0 2px 6px rgba(13, 148, 136, .12)); }
.logo-img { display: block; height: 56px; width: auto; }

.search-zone { flex: 1; max-width: 560px; }
.search-box {
  display: flex; align-items: center;
  background: #f2f5f9;
  border: 1.5px solid transparent;
  border-radius: 999px;
  transition: all var(--duration-fast) ease;
}
.search-box:focus-within {
  background: #fff;
  border-color: rgba(13, 148, 136, .55);
  box-shadow: 0 0 0 4px rgba(13, 148, 136, .10), 0 10px 24px -12px rgba(15, 31, 56, .22);
}
.search-box input {
  flex: 1; border: 0; outline: 0; padding: 11px 14px 11px 22px; font-size: .9rem;
  font-family: inherit; color: var(--ink); min-width: 0; background: transparent;
}
.search-box input::placeholder { color: var(--ink-faint); }
.search-box button {
  position: relative; overflow: hidden;
  display: inline-flex; align-items: center; gap: 7px;
  margin-right: 4px; height: 37px; padding: 0 22px;
  border-radius: 999px;
  background: #16294a; color: #fff;
  font-size: .84rem; font-weight: 600; letter-spacing: 2px;
  transition: all var(--duration-fast) ease;
}
.search-box button svg { width: 14px; height: 14px; }
.search-box button::after {
  content: ""; position: absolute; top: 0; bottom: 0; left: -80%; width: 45%;
  background: linear-gradient(105deg, transparent, rgba(255, 255, 255, .35), transparent);
  transform: skewX(-20deg); transition: left .55s var(--ease-out);
}
.search-box button:hover { background: #22406e; }
.search-box button:hover::after { left: 135%; }
.search-hot { margin-top: 9px; font-size: var(--text-xs); color: var(--ink-faint); display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.search-hot a {
  color: var(--ink-soft); background: #f2f5f9;
  padding: 3px 11px; border-radius: 999px;
  transition: all var(--duration-fast) ease;
}
.search-hot a:hover { color: var(--orange-deep); background: #ffefdf; }

.header-actions { display: flex; align-items: center; gap: 24px; margin-left: auto; flex-shrink: 0; }
.hd-hotline { display: flex; align-items: center; gap: 12px; }
.hd-hotline .ic {
  width: 46px; height: 46px; border-radius: 14px;
  background: linear-gradient(135deg, #ffa64d, var(--orange));
  color: #fff; font-size: 19px; display: grid; place-items: center;
  box-shadow: 0 8px 18px -6px rgba(255, 122, 26, .5);
}
.hd-hotline .lab { display: block; font-size: var(--text-xs); color: var(--ink-faint); line-height: 1.5; }
.hd-hotline b {
  font-size: 1.28rem; color: var(--teal-deep); font-weight: 800; letter-spacing: 1px;
  line-height: 1.3; font-variant-numeric: tabular-nums;
}
.hd-cta {
  display: inline-flex; align-items: center; gap: 8px;
  background: #fff; color: var(--teal-deep);
  font-weight: 700; font-size: var(--text-sm); letter-spacing: 1px;
  padding: 10px 21px; border-radius: 999px;
  border: 1.5px solid rgba(13, 148, 136, .5);
  box-shadow: 0 4px 12px -6px rgba(13, 148, 136, .3);
  transition: all var(--duration-fast) ease;
}
.hd-cta svg { width: 15px; height: 15px; }
.hd-cta:hover {
  color: var(--teal-deep); background: var(--teal-light);
  border-color: var(--teal); transform: translateY(-2px);
  box-shadow: 0 10px 20px -8px rgba(13, 148, 136, .4);
}

/* ============ 导航条：浅色毛玻璃吸顶 ============ */
.navbar {
  background: #fff;
  height: 54px;
  position: sticky; top: 0; z-index: 60;
  box-shadow: 0 1px 0 var(--line), 0 10px 26px -22px rgba(15, 31, 56, .45);
}
@supports (backdrop-filter: blur(10px)) {
  .navbar {
    background: rgba(255, 255, 255, .85);
    backdrop-filter: blur(16px) saturate(1.5);
    -webkit-backdrop-filter: blur(16px) saturate(1.5);
  }
}
.navbar-inner { display: flex; height: 100%; }
.nav-links { display: flex; height: 100%; }
.nav-links > a,
.nav-item > a {
  color: var(--ink); padding: 0 24px; height: 100%;
  display: flex; align-items: center; gap: 6px;
  font-size: .95rem; font-weight: 600; letter-spacing: 1px; position: relative;
  transition: background var(--duration-fast) ease, color var(--duration-fast) ease;
}
.nav-links > a:first-child { padding-left: 2px; }
.nav-links > a::after,
.nav-item > a::after {
  content: ""; position: absolute; left: 12px; right: 12px; bottom: 0; height: 3px;
  background: linear-gradient(90deg, var(--teal), var(--cyan)); border-radius: 3px 3px 0 0;
  transform: scaleX(0); transform-origin: center;
  transition: transform var(--duration-normal) var(--ease-out);
}
.nav-links > a:hover::after, .nav-links > a.on::after,
.nav-item > a:hover::after, .nav-item > a.on::after { transform: scaleX(1); }
.nav-links > a:hover, .nav-item > a:hover {
  background: rgba(13, 148, 136, .06); color: var(--teal-deep);
}

/* —— 材料检测大菜单 —— */
.nav-item { display: flex; height: 100%; position: relative; }
.nav-item .caret { font-size: .68rem; opacity: .55; transition: transform var(--duration-normal) var(--ease-out); }
.nav-item:hover .caret { transform: rotate(180deg); }
.mega {
  position: absolute; top: 100%; left: -70px;
  width: 740px; padding: 20px;
  display: grid; grid-template-columns: 1fr 1fr 1fr 218px; gap: 4px 20px;
  background: rgba(255, 255, 255, .97);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(13, 148, 136, .12);
  box-shadow: 0 30px 70px -20px rgba(15, 31, 56, .28);
  opacity: 0; visibility: hidden; transform: translateY(12px);
  transition: opacity .28s var(--ease-out), transform .28s var(--ease-out), visibility 0s linear .28s;
}
/* 悬停桥：防止移向面板途中断开 hover */
.mega::before { content: ""; position: absolute; top: -12px; left: 0; right: 0; height: 12px; }
.nav-item:hover .mega {
  opacity: 1; visibility: visible; transform: translateY(0);
  transition: opacity .28s var(--ease-out), transform .28s var(--ease-out), visibility 0s;
}
.mega-col h4 {
  font-size: .74rem; font-weight: 700; color: var(--ink-faint); letter-spacing: 2px;
  padding: 6px 12px 8px; border-bottom: 1px solid var(--line); margin-bottom: 6px;
}
.mega-col a {
  display: flex; align-items: center; justify-content: space-between;
  height: auto; padding: 8px 12px; border-radius: 9px;
  font-size: .88rem; font-weight: 500; color: var(--ink); letter-spacing: 0;
}
.mega-col a::after {
  content: "›"; font-size: 1rem; color: var(--teal);
  opacity: 0; transform: translateX(-5px);
  transition: all var(--duration-fast) ease;
}
.mega-col a:hover { background: var(--bg); color: var(--teal-deep); }
.mega-col a:hover::after { opacity: 1; transform: translateX(0); }
.mega-promo {
  grid-row: 1 / 3; grid-column: 4;
  border-radius: var(--radius); padding: 18px 16px;
  display: flex; flex-direction: column;
  background:
    radial-gradient(circle at 92% -6%, rgba(94, 234, 212, .5), transparent 52%),
    linear-gradient(150deg, #f2fdfb 0%, #ddf7f1 100%);
  border: 1px solid rgba(13, 148, 136, .16);
  color: var(--ink);
}
.mega-promo b { font-size: .98rem; letter-spacing: 1px; color: var(--ink); }
.mega-promo p { font-size: var(--text-xs); color: var(--ink-soft); margin-top: 6px; line-height: 1.7; }
.mega-promo a {
  margin-top: auto; align-self: flex-start;
  background: var(--grad-brand); color: #fff;
  font-size: var(--text-sm); font-weight: 700;
  padding: 7px 18px; border-radius: 999px;
  box-shadow: 0 6px 14px -6px rgba(13, 148, 136, .5);
}
.mega-promo a:hover { filter: brightness(1.07); }

.nav-cta {
  margin-left: auto; display: flex; align-items: center; gap: 9px;
  padding: 0 30px 0 26px; height: 100%;
  background: linear-gradient(135deg, #ffa64d, var(--orange-deep));
  color: #fff; font-size: .95rem; font-weight: 800; letter-spacing: 2px;
  position: relative; overflow: hidden;
  transition: filter var(--duration-fast) ease;
}
.nav-cta::after {
  content: ""; position: absolute; top: 0; bottom: 0; left: -80%; width: 45%;
  background: linear-gradient(105deg, transparent, rgba(255, 255, 255, .4), transparent);
  transform: skewX(-20deg); transition: left .55s var(--ease-out);
}
.nav-cta:hover { color: #fff; filter: brightness(1.08); }
.nav-cta:hover::after { left: 135%; }
.nav-cta .c-ico { font-style: normal; font-size: 1.05rem; opacity: .9; }

/* ============ 首屏 ============ */
.hero { background: linear-gradient(180deg, #eaf6f4 0%, #fff 100%); padding: 0 0 34px; }
.hero-stage { position: relative; }

.carousel { position: relative; overflow: hidden; height: 540px; }
.slide {
  position: absolute; inset: 0; opacity: 0; transition: opacity 800ms ease;
  display: flex; flex-direction: column; justify-content: center;
  padding: 0 420px 0 max(64px, calc((100% - var(--container)) / 2)); color: #fff;
}
.slide.on { opacity: 1; }
.slide-img, .slide-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0; }
.slide::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background:
    radial-gradient(circle at 86% 22%, rgba(34, 211, 238, .18), transparent 42%),
    linear-gradient(90deg, rgba(4, 18, 38, .92) 0%, rgba(4, 18, 38, .62) 46%, rgba(4, 18, 38, .18) 100%),
    linear-gradient(0deg, rgba(4, 18, 38, .4) 0%, transparent 32%);
}
.slide > *:not(.slide-video) { position: relative; z-index: 2; }
.slide-1 { background: linear-gradient(120deg, #0b3c46 0%, #0f766e 55%, #14b8a6 100%); }
.slide-2 { background: linear-gradient(120deg, #07332b 0%, #0e7a58 55%, #2fb98e 100%); }
.slide-3 { background: linear-gradient(120deg, #4a2408 0%, #b45e14 55%, #f59a3e 100%); }

.slide .kicker {
  align-self: flex-start; display: flex; align-items: center; gap: 9px;
  font-size: var(--text-sm); font-weight: 700; letter-spacing: 3px;
  color: #eafffb; border: 1px solid rgba(148, 233, 220, .45); border-radius: 999px;
  padding: 7px 20px; margin-bottom: 22px;
  background: rgba(13, 148, 136, .28);
  backdrop-filter: blur(6px);
}
.slide .kicker::before {
  content: ""; width: 8px; height: 8px; border-radius: 50%; background: #67e8f9;
  box-shadow: 0 0 10px 2px rgba(94, 234, 212, .8);
}
.slide h2 {
  font-size: clamp(2.5rem, 3.5vw, 3.8rem); font-weight: 800; letter-spacing: 1px;
  line-height: 1.22; text-shadow: 0 2px 22px rgba(0, 0, 0, .4);
  max-width: min(640px, calc(100% - 40px));
}
.slide h2 .hl {
  font-style: normal;
  background: linear-gradient(92deg, #7ef0dd, #22d3ee);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  text-shadow: none;
}
.slide p { margin-top: 18px; font-size: 1.04rem; opacity: .92; max-width: 560px; }

.cta-row { display: flex; align-items: center; gap: 14px; margin-top: 32px; }
.slide .cta {
  background: #fff; color: var(--teal-deep); font-weight: 700; font-size: var(--text-base);
  padding: 12px 40px; border-radius: 999px;
  transition: transform var(--duration-normal) var(--ease-out), box-shadow var(--duration-normal) ease;
}
.slide .cta:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(0, 0, 0, .22); color: var(--teal-deep); }
.slide-2 .cta { color: #0e7a58; } .slide-2 .cta:hover { color: #0e7a58; }
.slide-3 .cta { color: #b4550d; } .slide-3 .cta:hover { color: #b4550d; }
.cta-ghost {
  padding: 11px 26px; border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, .5);
  color: #fff; font-size: var(--text-sm); font-weight: 600; letter-spacing: 1px;
  background: rgba(255, 255, 255, .06); backdrop-filter: blur(4px);
  transition: all var(--duration-fast) ease;
}
.cta-ghost:hover { background: rgba(255, 255, 255, .16); color: #fff; border-color: rgba(255, 255, 255, .8); }

.slide-chips { display: flex; gap: 10px; margin-top: 30px; flex-wrap: wrap; }
.slide-chips span {
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 1px;
  color: #eafffb; padding: 6px 15px; border-radius: 999px;
  background: rgba(255, 255, 255, .10); border: 1px solid rgba(255, 255, 255, .26);
  backdrop-filter: blur(4px);
}

.carousel-dots {
  position: absolute; bottom: 18px; left: max(64px, calc((100% - var(--container)) / 2));
  display: flex; gap: 8px; z-index: 4;
}
.carousel-dots i {
  width: 46px; height: 4px; border-radius: 99px; cursor: pointer;
  background: rgba(255, 255, 255, .28); position: relative; overflow: hidden;
}
.carousel-dots i::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit;
  background: linear-gradient(90deg, #fff, #b5f3ea);
  transform: scaleX(0); transform-origin: left;
}
.carousel-dots i.on::after { animation: dot-fill 5s linear forwards; }
@keyframes dot-fill { to { transform: scaleX(1); } }

/* 询价卡：随 1200px 栅格悬浮于通栏大图右侧 */
.hero-overlay { position: absolute; inset: 0; z-index: 3; pointer-events: none; }
.hero-overlay .inquiry-card { pointer-events: auto; }
.inquiry-card {
  position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  width: 330px;
  background: rgba(255, 255, 255, .90);
  backdrop-filter: blur(16px) saturate(1.3);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-deep);
  padding: 24px 20px 18px;
}
/* 渐变描边 */
.inquiry-card::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit;
  padding: 1.5px; pointer-events: none;
  background: linear-gradient(150deg, rgba(13, 148, 136, .55), rgba(34, 211, 238, .28), rgba(255, 255, 255, .25));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
}
.inquiry-card h3 {
  font-size: 1.02rem; display: flex; align-items: center; gap: 8px; margin-bottom: 15px;
}
.inquiry-card h3::before {
  content: ""; width: 4px; height: 17px; border-radius: 3px;
  background: linear-gradient(180deg, var(--teal), var(--cyan));
}
.inquiry-card input, .inquiry-card textarea {
  width: 100%; border: 1px solid var(--line); border-radius: 9px;
  background: #fbfdfe;
  padding: 10px 12px; font-size: var(--text-sm); font-family: inherit;
  outline: 0; margin-bottom: 10px; color: var(--ink); resize: none;
  transition: border-color var(--duration-fast) ease, box-shadow var(--duration-fast) ease;
}
.inquiry-card input:focus, .inquiry-card textarea:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(13, 148, 136, .14);
}
.inquiry-card button {
  position: relative; overflow: hidden;
  width: 100%; background: linear-gradient(135deg, #ffa64d, var(--orange-deep));
  color: #fff; font-weight: 700; font-size: var(--text-sm);
  padding: 12px 0; border-radius: 10px;
  box-shadow: 0 8px 18px -6px rgba(255, 122, 26, .5);
  transition: filter var(--duration-fast) ease, transform var(--duration-fast) ease;
}
.inquiry-card button::after {
  content: ""; position: absolute; top: 0; bottom: 0; left: -80%; width: 45%;
  background: linear-gradient(105deg, transparent, rgba(255, 255, 255, .4), transparent);
  transform: skewX(-20deg); transition: left .55s var(--ease-out);
}
.inquiry-card button:hover { filter: brightness(1.07); transform: translateY(-1px); }
.inquiry-card button:hover::after { left: 135%; }
.inquiry-note { font-size: var(--text-xs); color: var(--ink-faint); text-align: center; margin-top: 9px; }
.inquiry-card form { display: contents; }
.quote-hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.inquiry-note.is-ok { color: var(--teal-deep, #0f766e); font-weight: 600; }
.inquiry-note.is-err { color: #dc2626; }
.inquiry-card button:disabled { opacity: .65; cursor: wait; filter: none; transform: none; }

.notice-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card); padding: 16px 18px; flex: 1;
}
.notice-card h3 {
  font-size: .95rem; margin-bottom: 10px; display: flex; justify-content: space-between; align-items: center;
}
.notice-card h3 a { font-size: var(--text-xs); color: var(--ink-faint); font-weight: 400; }
.notice-card li {
  font-size: var(--text-xs); color: var(--ink-soft); padding: 5px 0;
  display: flex; gap: 8px; white-space: nowrap; overflow: hidden;
}
.notice-card li::before { content: ""; width: 5px; height: 5px; border-radius: 50%;
  background: var(--teal); margin-top: 8px; flex-shrink: 0; }
.notice-card li a { overflow: hidden; text-overflow: ellipsis; }

/* ============ 新闻条 ============ */
.news-strip { padding: 34px 0 10px; }
.ns-wrap { display: grid; grid-template-columns: 1fr 330px; gap: 28px; align-items: start; }
.ns-tabs { display: flex; gap: 8px; margin-bottom: 16px; }
.ns-tabs span {
  padding: 6px 20px; border-radius: 999px; font-size: var(--text-sm); font-weight: 600;
  color: var(--ink-soft); background: var(--bg); cursor: pointer;
  transition: all var(--duration-fast) ease;
}
.ns-tabs span:hover { color: var(--teal-deep); }
.ns-tabs span.on { background: var(--grad-brand); color: #fff; box-shadow: 0 4px 12px -4px rgba(13, 148, 136, .5); }
.ns-list { display: none; }
.ns-list.on { display: block; }
.ns-list li {
  display: flex; justify-content: space-between; align-items: baseline; gap: 20px;
  padding: 10px 6px; border-bottom: 1px dashed var(--line); font-size: var(--text-sm);
  transition: background var(--duration-fast) ease;
}
.ns-list li:hover { background: #fafcfe; }
.ns-list li a { color: var(--ink); position: relative; }
.ns-list li a::before {
  content: ""; position: absolute; left: 0; bottom: -2px; height: 1.5px; width: 100%;
  background: var(--grad-text); transform: scaleX(0); transform-origin: left;
  transition: transform var(--duration-normal) var(--ease-out);
}
.ns-list li a:hover { color: var(--teal-deep); }
.ns-list li a:hover::before { transform: scaleX(1); }
.ns-list li time { color: var(--ink-faint); font-size: var(--text-xs); flex-shrink: 0; font-variant-numeric: tabular-nums; }

/* ============ 楼层通用 ============ */
.floor { padding: 44px 0; }
.floor.alt { background: var(--bg); }
.floor-head { display: flex; align-items: center; gap: 16px; margin-bottom: 26px; }
.floor-head h2 {
  font-size: 1.8rem; font-weight: 800; letter-spacing: .5px;
  display: flex; align-items: center; gap: 14px; line-height: 1.2;
}
.floor-head h2::before {
  content: ""; width: 6px; height: 26px; border-radius: 4px; flex-shrink: 0;
  background: linear-gradient(180deg, var(--teal), var(--cyan));
  box-shadow: 0 4px 10px -2px rgba(13, 148, 136, .55);
}
.floor-head h2 em {
  font-style: normal;
  background: var(--grad-text);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.floor-head .sub { font-size: var(--text-xs); color: var(--ink-faint); letter-spacing: 2.5px; text-transform: uppercase; }
.floor-head .more {
  margin-left: auto; font-size: var(--text-sm); color: var(--ink-soft);
  border: 1px solid var(--line); border-radius: 999px; padding: 7px 18px;
  background: #fff; transition: all var(--duration-fast) ease;
}
.floor-head .more:hover { color: var(--teal-deep); border-color: var(--teal); background: var(--teal-light); }

/* 检测服务楼层（CTI 商城版式：左侧通高图版面板 + 右侧细线图文格） */
.svc-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.svc-tabs span {
  position: relative; overflow: hidden;
  padding: 8px 22px; border-radius: 999px; font-size: .92rem; font-weight: 600;
  color: var(--ink-soft); background: #fff; border: 1px solid var(--line);
  cursor: pointer;
  transition: all var(--duration-fast) ease;
}
/* 自动切换进度线 */
.svc-tabs span.on::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 4px; height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, rgba(255,255,255,.95), rgba(255,255,255,.55));
  transform-origin: left;
  animation: tab-fill 5s linear forwards;
}
.floor.paused .svc-tabs span.on::after { animation-play-state: paused; }
@keyframes tab-fill { from { transform: scaleX(0); } to { transform: scaleX(1); } }
.svc-tabs span:hover { color: var(--teal-deep); border-color: rgba(13, 148, 136, .45); }
.svc-tabs span.on {
  background: var(--grad-brand); border-color: transparent; color: #fff;
  box-shadow: 0 5px 14px -5px rgba(13, 148, 136, .5);
}

.svc-grid { display: none; grid-template-columns: 252px 1fr; }
.svc-grid.on { display: grid; }

/* 左侧通高图片面板 */
.svc-panel { position: relative; overflow: hidden; min-height: 430px; }
.svc-panel > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.sp-scrim {
  position: absolute; inset: 0;
  background: linear-gradient(180deg,
    rgba(7, 23, 43, .28) 0%, rgba(7, 23, 43, .06) 36%, rgba(5, 17, 32, .84) 100%);
}
.sp-txt {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 2;
  padding: 26px 22px 24px; color: #fff;
  display: flex; flex-direction: column; gap: 9px;
}
.sp-txt h3 { font-size: 1.55rem; font-weight: 800; letter-spacing: 3px; text-shadow: 0 2px 14px rgba(0, 0, 0, .4); }
.sp-txt p { font-size: .85rem; line-height: 1.9; color: rgba(255, 255, 255, .94); }
.sp-txt span {
  margin-top: 9px; padding-top: 13px;
  border-top: 1px solid rgba(255, 255, 255, .3);
  font-size: .78rem; line-height: 1.9; color: rgba(255, 255, 255, .78);
}

/* 右侧：细线拼格图文卡 */
.svc-right { display: flex; flex-direction: column; background: #fff; border: 1px solid #e3e9f2; }
.cti-grid {
  flex: 1; display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: #e3e9f2;
}
.cti-card {
  position: relative; display: flex; flex-direction: column;
  background: #fff; overflow: hidden;
  transition: transform var(--duration-normal) var(--ease-out), box-shadow var(--duration-normal) ease;
}
.cti-card img {
  display: block; width: 100%; height: 128px; object-fit: cover;
  transition: transform .5s var(--ease-out);
}
.cti-card:hover img { transform: scale(1.05); }
.cc-body { padding: 12px 14px 13px; display: flex; flex-direction: column; gap: 5px; }
.cc-body h3 {
  font-size: .93rem; font-weight: 700; color: var(--ink);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  transition: color var(--duration-fast) ease;
}
.cti-card:hover .cc-body h3 { color: var(--teal-deep); }
.cc-body p {
  font-size: var(--text-xs); color: var(--ink-soft);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.cti-card::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 0;
  background: linear-gradient(180deg, rgba(13, 148, 136, .9), rgba(34, 211, 238, .65));
  transition: height var(--duration-normal) var(--ease-out);
}
.cti-card:hover::before { height: 3px; }




/* 材料领域 */
.field-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.field-card {
  background: #fff; border: 1px solid #eaeef5; border-radius: var(--radius);
  padding: 22px 14px; text-align: center;
  box-shadow: var(--shadow-card);
  transition: all var(--duration-normal) var(--ease-out);
}
.field-card:hover {
  border-color: rgba(13, 148, 136, .45); transform: translateY(-5px);
  box-shadow: 0 18px 38px -14px rgba(13, 148, 136, .3);
}
.field-card .fic {
  width: 54px; height: 54px; margin: 0 auto 12px; border-radius: 14px;
  display: block; object-fit: cover;
  box-shadow: 0 0 0 3px var(--teal-light), 0 8px 16px -8px rgba(15, 31, 56, .3);
  transition: transform var(--duration-normal) var(--ease-out);
}
.field-card:hover .fic { transform: scale(1.09) rotate(-2deg); }
.field-card h3 { font-size: .92rem; margin-bottom: 6px; transition: color var(--duration-fast) ease; }
.field-card:hover h3 { color: var(--teal-deep); }
.field-card p {
  font-size: var(--text-xs); color: var(--ink-faint);
  display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden;
}

/* 资质横幅 */
.cred-band {
  position: relative;
  background:
    repeating-linear-gradient(115deg, rgba(255, 255, 255, .035) 0 1px, transparent 1px 72px),
    radial-gradient(circle at 82% 18%, rgba(34, 211, 238, .26), transparent 46%),
    radial-gradient(circle at 8% 92%, rgba(20, 184, 166, .2), transparent 40%),
    linear-gradient(120deg, #061f36 0%, #0b4457 55%, #0e8a80 100%);
  color: #fff; padding: 52px 0;
  overflow: hidden;
}
.cred-band::after {
  content: ""; position: absolute; right: -80px; top: -80px; width: 280px; height: 280px;
  border: 1px dashed rgba(103, 232, 249, .3); border-radius: 50%; pointer-events: none;
}
.cred-grid { display: flex; align-items: center; gap: 40px; position: relative; z-index: 1; }
.cred-copy h2 { font-size: 1.65rem; font-weight: 800; letter-spacing: 1px; }
.cred-copy p { margin-top: 12px; opacity: .88; font-size: .92rem; max-width: 560px; }
.cred-chips { display: flex; gap: 10px; margin-top: 20px; flex-wrap: wrap; }
.cred-chips span {
  font-size: var(--text-xs); font-weight: 700; padding: 5px 15px; border-radius: 999px;
  background: rgba(255, 255, 255, .12); border: 1px solid rgba(148, 233, 220, .4);
  backdrop-filter: blur(4px);
}
.cred-stats { margin-left: auto; display: flex; gap: 38px; }
.cred-stat { text-align: center; position: relative; }
.cred-stat::before {
  content: ""; display: block; width: 26px; height: 3px; border-radius: 2px;
  margin: 0 auto 8px; background: linear-gradient(90deg, var(--cyan), #0ea5e9);
}
.cred-stat b { font-size: 2rem; font-weight: 800; font-variant-numeric: tabular-nums; }
.cred-stat b i { font-style: normal; font-size: 1rem; margin-left: 2px; }
.cred-stat span { display: block; font-size: var(--text-xs); opacity: .8; margin-top: 4px; }

/* 检测标准 */
.std-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.std-card {
  background: #fff; border: 1px solid #eaeef5; border-radius: var(--radius);
  padding: 18px; box-shadow: var(--shadow-card);
  transition: all var(--duration-normal) var(--ease-out);
}
.std-card:hover {
  border-color: rgba(13, 148, 136, .45); box-shadow: 0 16px 36px -14px rgba(13, 148, 136, .3);
  transform: translateY(-4px);
}
.std-card h3 {
  font-size: .92rem; margin-bottom: 12px; padding-left: 10px;
  border-left: 3px solid transparent;
  border-image: linear-gradient(180deg, var(--teal), var(--cyan)) 1;
}
.std-card li {
  font-size: var(--text-xs); color: var(--ink-soft); padding: 4px 0;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.std-card li a { transition: color var(--duration-fast) ease; }
.std-card li a::before { content: ""; margin-right: 8px; color: var(--teal); }
.std-card li a::after { content: "›"; color: var(--teal); opacity: 0; transition: opacity var(--duration-fast) ease; }
.std-card li a:hover { color: var(--teal-deep); }
.std-card li a:hover::after { opacity: 1; }

/* 走进实验室 */
.lab-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.lab-card {
  position: relative; border-radius: var(--radius-lg); overflow: hidden; height: 230px;
  display: flex; align-items: flex-end; color: #fff;
  box-shadow: var(--shadow-card);
  transition: transform var(--duration-normal) var(--ease-out), box-shadow var(--duration-normal) ease;
}
.lab-card:hover { transform: translateY(-5px); box-shadow: 0 20px 44px -14px rgba(6, 44, 41, .45); }
.lab-card .lab-bg {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  transition: transform .6s var(--ease-out);
}
.lab-card::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(180deg, rgba(8, 22, 40, .06) 26%, rgba(6, 40, 37, .88) 100%);
}
.lab-card:hover .lab-bg { transform: scale(1.06); }
.lab-card .lab-ico {
  position: absolute; top: 18px; left: 18px; z-index: 2; font-size: 1.5rem;
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: rgba(255, 255, 255, .14); border: 1px solid rgba(255, 255, 255, .3);
  backdrop-filter: blur(6px);
}
.lab-card .lab-txt { position: relative; z-index: 2; padding: 0 20px 20px; }
.lab-card h3 { font-size: 1.02rem; margin-bottom: 4px; }
.lab-card p { font-size: var(--text-xs); opacity: .85;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ============ 页脚 ============ */
.footer {
  position: relative;
  background:
    radial-gradient(1000px 320px at 88% -80px, rgba(34, 211, 238, .16), transparent 62%),
    radial-gradient(700px 260px at 4% 110%, rgba(20, 184, 166, .12), transparent 58%),
    #0a1526;
  color: #9aaac2; padding-top: 42px; margin-top: 24px;
}
.promise {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px;
  padding-bottom: 30px; border-bottom: 1px solid #16263f;
}
.promise div {
  display: flex; align-items: center; gap: 12px; font-size: var(--text-sm);
  color: #fff; font-weight: 600;
}
.promise .pic {
  width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center;
  background: linear-gradient(145deg, rgba(103, 232, 249, .14), rgba(20, 184, 166, .08));
  border: 1px solid rgba(103, 232, 249, .26);
  font-size: 17px; color: #67e8f9;
}
.promise span { display: block; font-size: var(--text-xs); color: #7386a3; font-weight: 400; }

.f-cols { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 30px; padding: 30px 0; }
.f-brand .f-name { font-size: 1.15rem; font-weight: 800; color: #fff; letter-spacing: 2px; }
.f-brand .f-slogan { font-size: var(--text-xs); color: #5e7596; margin: 6px 0 16px; }
.f-brand p { font-size: var(--text-xs); line-height: 1.9; }
.f-col h3 {
  font-size: .92rem; color: #fff; margin-bottom: 14px; position: relative; padding-left: 12px;
}
.f-col h3::before {
  content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 4px; height: 14px; border-radius: 3px;
  background: linear-gradient(180deg, var(--cyan), #0ea5e9);
}
.f-col li { font-size: var(--text-xs); padding: 4px 0; }
.f-col li a { transition: all var(--duration-fast) ease; }
.f-col li a:hover { color: #67e8f9; padding-left: 3px; }
.f-contact li { display: flex; gap: 8px; padding: 6px 0; font-size: var(--text-xs); }
.f-contact .hotline {
  font-size: 1.3rem; font-weight: 800; color: #ffab5e; letter-spacing: 1px;
  font-variant-numeric: tabular-nums;
}
.f-links {
  border-top: 1px solid #16263f; padding: 14px 0; font-size: var(--text-xs);
  display: flex; gap: 16px; flex-wrap: wrap; color: #5e7596;
}
.copyright {
  border-top: 1px solid #16263f; padding: 18px 0 26px; text-align: center;
  font-size: var(--text-xs); color: #5e7596; line-height: 2;
}
.copyright a:hover { color: #67e8f9; }

/* ============ 右侧悬浮 ============ */
.float-side {
  position: fixed; right: 16px; top: 50%; transform: translateY(-50%);
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  box-shadow: 0 14px 34px -12px rgba(15, 31, 56, .25); z-index: 80; overflow: hidden;
}
.float-side a {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  width: 66px; padding: 12px 0; font-size: 11px; color: var(--ink-soft);
  border-bottom: 1px solid var(--line);
  transition: all var(--duration-fast) ease;
}
.float-side a:last-child { border-bottom: 0; }
.float-side a:hover { background: var(--teal-light); color: var(--teal-deep); }
.float-side .f-ico { font-size: 19px; }
.float-side .hot { color: var(--orange-deep); font-weight: 700; }

/* ============ 响应式 ============ */
@media (max-width: 1240px) {
  .mega { left: -110px; }
}

@media (max-width: 1220px) {
  .container { width: 96%; }
  .field-grid, .std-grid, .lab-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 1024px) {
  .header-actions .hd-cta { display: none; }
  .carousel { height: 420px; }
  .slide { padding: 0 48px; }
  .slide-chips, .cta-ghost { display: none; }
  .cta-row { margin-top: 26px; }
  .hero-overlay { position: static; pointer-events: auto; }
  .inquiry-card { position: static; transform: none; width: 100%; max-width: 460px; margin: 14px auto 0; }
  .ns-wrap { grid-template-columns: 1fr; }
  .cred-stats { display: none; }
  .promise { grid-template-columns: repeat(2, 1fr); }
  .f-cols { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .mega { display: none; }
}

@media (max-width: 1024px) {
  /* 检测服务楼层：面板变横幅，卡片降列 */
  .svc-stage, .svc-grid { grid-template-columns: 1fr; }
  .svc-panel { min-height: 190px; }
  .sp-txt h3 { font-size: 1.25rem; }
  .sp-scrim { background: linear-gradient(180deg, rgba(7, 23, 43, .42) 0%, transparent 55%, rgba(5, 17, 32, .78) 100%); }
  .cti-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .cti-grid { grid-template-columns: 1fr; }
  .cc-body h3, .cc-body p { white-space: normal; }
}

@media (max-width: 768px) {
  .topbar-links { display: none; }
  .topbar-inner { justify-content: center; }
  .header-inner { flex-direction: column; gap: 18px; }
  .search-zone { max-width: 100%; width: 100%; }
  .hd-hotline { display: none; }
  /* 移动端: 导航独占整行可横滑; 橙色快速询价按钮隐藏(下方询价卡已是主入口, 避免挤压成竖排) */
  .nav-cta { display: none; }
  .nav-links {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .nav-links::-webkit-scrollbar { display: none; }
  .nav-links > a, .nav-item > a { padding: 0 14px; font-size: var(--text-sm); white-space: nowrap; }
  .nav-links > a:first-child { padding-left: 20px; }
  .carousel { height: 310px; }
  .slide { padding: 0 28px; }
  .slide h2 { font-size: 1.55rem; }
  .slide .cta { padding: 9px 26px; }
  .field-grid, .std-grid, .lab-grid { grid-template-columns: repeat(2, 1fr); }
  .floor { padding: 34px 0; }
  .floor-head { flex-wrap: wrap; }
  .floor-head h2 { font-size: 1.4rem; }
  .floor-head h2::before { height: 20px; }
  .float-side { display: none; }
  .cred-copy h2 { font-size: 1.25rem; }
}

@media (max-width: 480px) {
  .field-grid, .std-grid, .lab-grid { grid-template-columns: 1fr; }
  .nav-links { overflow-x: auto; }
  .slide h2 { font-size: 1.22rem; }
  .f-cols { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition-duration: 1ms !important; animation-duration: 1ms !important; animation-iteration-count: 1 !important; }
  /* 轮播进度条与入场动画降级为直接可见 */
  .carousel-dots i.on::after { transform: scaleX(1); animation: none !important; }
  .svc-tabs span.on::after { display: none; }
  html.js [data-rv] { opacity: 1; transform: none; }
}

/* 移动端 banner: 视频换静态图(省流量+低端机不掉帧) */
.slide-img { display: none; }
@media (max-width: 768px) {
  .slide-video { display: none; }
  .slide-img { display: block; }
}