:root{--c-primary:#c81e2e;--font:'Microsoft YaHei','PingFang SC',sans-serif;}
/* =========================================
   精血医学检验所 · 血滴血管风
   Red #c81e2e / White #fff9f9 / Dark Red #7a0f18
   ========================================= */
:root {
  --red: #c81e2e;
  --red-bright: #e23545;
  --red-dark: #7a0f18;
  --red-deep: #4d080f;
  --white: #fff9f9;
  --paper: #ffffff;
  --ink: #3d2b2b;
  --ink-soft: #7a6464;
  --line: rgba(200, 30, 46, 0.2);
  --mono: 'Consolas', 'Courier New', monospace;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', sans-serif;
  background: var(--white);
  color: var(--ink);
  line-height: 1.75;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container { width: min(1200px, 92%); margin: 0 auto; }

/* 血管分支背景 */
.vessel-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: .12;
  background-image:
    radial-gradient(circle at 20% 30%, var(--red) 1px, transparent 1.5px),
    radial-gradient(circle at 80% 60%, var(--red) 1px, transparent 1.5px),
    radial-gradient(circle at 40% 80%, var(--red) 1px, transparent 1.5px),
    radial-gradient(circle at 65% 15%, var(--red) 1px, transparent 1.5px),
    radial-gradient(circle at 90% 40%, var(--red) 1px, transparent 1.5px);
  background-size: 140px 140px;
}
.vessel-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(45deg, transparent 0 60px, rgba(200,30,46,.4) 60px 61px),
    repeating-linear-gradient(-45deg, transparent 0 90px, rgba(200,30,46,.25) 90px 91px);
  mask-image: radial-gradient(ellipse at 50% 40%, #000, transparent 75%);
}

header, main, footer { position: relative; z-index: 1; }

/* ---------- 顶部导航 ---------- */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255, 249, 249, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 3px solid var(--red);
  box-shadow: 0 3px 18px rgba(200, 30, 46, .12);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo { position: relative; width: 44px; height: 44px; }
.brand-logo .drop {
  position: absolute;
  top: 4px; left: 50%;
  transform: translateX(-50%);
  width: 26px; height: 34px;
  background: var(--red);
  border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
  transform: rotate(45deg);
  display: grid; place-items: center;
}
.brand-logo .drop::before {
  content: "＋";
  transform: rotate(-45deg);
  color: #fff;
  font-size: 13px;
}
.brand-name strong { font-size: 19px; letter-spacing: 2px; color: var(--red-dark); }
.brand-name small { display: block; font-family: var(--mono); font-size: 10px; letter-spacing: 3px; color: var(--red); }
.nav-links { display: flex; gap: 2px; }
.nav-links a {
  display: block;
  padding: 10px 18px;
  font-size: 15px;
  letter-spacing: 2px;
  color: var(--ink);
  position: relative;
  transition: color .25s;
}
.nav-links a::before {
  content: "●";
  position: absolute;
  left: 2px; top: 50%;
  transform: translateY(-50%) scale(0);
  font-size: 7px;
  color: var(--red);
  transition: transform .25s;
}
.nav-links a:hover, .nav-links a.active { color: var(--red-dark); }
.nav-links a:hover::before, .nav-links a.active::before { transform: translateY(-50%) scale(1); }
.nav-cta a {
  display: inline-block;
  padding: 10px 24px;
  background: var(--red);
  color: #fff;
  font-size: 14px;
  letter-spacing: 2px;
  border-radius: 30px;
  transition: all .3s;
  box-shadow: 0 6px 16px rgba(200,30,46,.28);
}
.nav-cta a:hover { background: var(--red-dark); }
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.menu-toggle span { width: 26px; height: 3px; background: var(--red); border-radius: 2px; }

/* ---------- Hero · 大血滴 + 显微镜 ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 50% 30%, rgba(226, 53, 69, .14), transparent 60%),
    linear-gradient(180deg, var(--white), #ffecec);
}
.hero::before, .hero::after {
  content: "";
  position: absolute;
  border: 2px solid var(--red);
  border-radius: 50%;
  opacity: .12;
}
.hero::before { width: 420px; height: 420px; top: -120px; right: -100px; }
.hero::after { width: 300px; height: 300px; bottom: -80px; left: -60px; }
.hero-inner { position: relative; z-index: 2; padding: 150px 20px 90px; }
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 4px;
  color: var(--red);
  border: 1px solid var(--line);
  border-radius: 30px;
  padding: 8px 22px;
  background: #fff;
}
.hero h1 {
  font-size: clamp(34px, 5vw, 56px);
  letter-spacing: 4px;
  color: var(--red-dark);
  margin: 26px 0 16px;
  font-weight: 800;
}
.hero-sub { font-size: 16px; color: var(--ink-soft); max-width: 600px; margin: 0 auto 36px; }
.hero-btns { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: 14px 40px;
  font-size: 15px;
  letter-spacing: 3px;
  border-radius: 40px;
  border: 1px solid transparent;
  transition: all .3s;
  font-family: inherit;
  cursor: pointer;
}
.btn-red { background: var(--red); color: #fff; box-shadow: 0 8px 22px rgba(200,30,46,.3); }
.btn-red:hover { background: var(--red-dark); transform: translateY(-2px); }
.btn-outline { border-color: var(--red); color: var(--red-dark); }
.btn-outline:hover { background: var(--red); color: #fff; }

/* 大血滴造型 */
.hero-drop { display: flex; justify-content: center; margin-bottom: 36px; }
.drop-big {
  position: relative;
  width: 170px; height: 200px;
  margin: 0 auto;
  background: linear-gradient(135deg, var(--red-bright), var(--red-dark));
  border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
  transform: rotate(45deg);
  box-shadow: 0 24px 60px rgba(200,30,46,.4);
  display: grid; place-items: center;
}
.drop-big::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(circle at 30% 25%, rgba(255,255,255,.5), transparent 40%);
}
.drop-big .in {
  transform: rotate(-45deg);
  z-index: 2;
  color: #fff;
  font-size: 56px;
  line-height: 1;
  filter: drop-shadow(0 2px 6px rgba(0,0,0,.25));
}
.drop-float {
  position: absolute;
  width: 12px; height: 12px;
  background: var(--red);
  border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
  animation: dropFloat 3s ease-in-out infinite;
}
.drop-float.f1 { top: 6%; left: 20%; animation-delay: 0s; }
.drop-float.f2 { top: 30%; right: 12%; animation-delay: .8s; }
.drop-float.f3 { bottom: 18%; left: 8%; animation-delay: 1.5s; }
@keyframes dropFloat {
  0%, 100% { transform: translateY(0) rotate(45deg); opacity: .7; }
  50% { transform: translateY(-18px) rotate(45deg); opacity: 1; }
}

/* 显微镜图标 */
.micro {
  position: absolute;
  bottom: 8%;
  right: 6%;
  width: 90px; height: 90px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 14px 34px rgba(200,30,46,.2);
  display: grid; place-items: center;
  font-size: 40px;
  border: 3px solid var(--red);
  animation: brainFloat 5s ease-in-out infinite;
}
@keyframes brainFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ---------- Section 通用 ---------- */
.section { padding: 96px 0; position: relative; }
.section.soft { background: var(--white); }
.section.paper { background: var(--paper); }
.section.deep { background: linear-gradient(150deg, var(--red-deep), var(--red-dark)); color: #fff; }
.sec-head { text-align: center; max-width: 720px; margin: 0 auto 52px; }
.sec-eyebrow {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 4px;
  color: var(--red);
  background: #ffe9ea;
  padding: 5px 18px;
  border-radius: 30px;
  margin-bottom: 14px;
  border: 1px solid var(--line);
}
.sec-head h2 { font-size: clamp(26px, 3.6vw, 38px); letter-spacing: 3px; color: var(--red-dark); }
.sec-head p { color: var(--ink-soft); font-size: 15px; margin-top: 14px; }
.sec-deep .sec-eyebrow { background: rgba(255,255,255,.16); color: #fff; border-color: rgba(255,255,255,.3); }
.sec-deep .sec-head h2 { color: #fff; }
.sec-deep .sec-head p { color: rgba(255,255,255,.85); }

/* 血管线条分隔 */
.vessel-line {
  position: relative;
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.vessel-line::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 50%;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--red) 12%, var(--red) 88%, transparent);
  opacity: .5;
}
.vessel-line::after {
  content: "";
  position: absolute;
  left: 0; right: 0; top: calc(50% - 16px);
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(200,30,46,.3) 20%, rgba(200,30,46,.3) 80%, transparent);
}
.vessel-node {
  position: relative;
  z-index: 2;
  width: 56px; height: 56px;
  background: var(--white);
  border: 2px solid var(--red);
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: 22px;
  color: var(--red);
  box-shadow: 0 0 0 8px rgba(200,30,46,.08);
}

/* ---------- 检验实力 ---------- */
.ability-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.ability-card {
  background: var(--paper);
  border-radius: 14px;
  padding: 34px 24px;
  text-align: center;
  border: 1px solid var(--line);
  border-top: 4px solid var(--red);
  transition: all .3s;
  position: relative;
  overflow: hidden;
}
.ability-card::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(circle at 50% 0%, rgba(200,30,46,.06), transparent 60%);
  opacity: 0;
  transition: opacity .3s;
}
.ability-card:hover { transform: translateY(-8px); box-shadow: 0 18px 40px rgba(200,30,46,.14); }
.ability-card:hover::after { opacity: 1; }
.ability-card .ic { font-size: 36px; }
.ability-card b { display: block; font-size: 40px; color: var(--red); font-family: var(--mono); margin: 14px 0 4px; }
.ability-card span { font-size: 13px; color: var(--ink-soft); letter-spacing: 1px; }

/* ---------- 检验项目 · 试管+血滴卡片 ---------- */
.test-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.test-card {
  background: var(--paper);
  border-radius: 14px;
  padding: 30px 26px;
  border: 1px solid var(--line);
  position: relative;
  transition: all .3s;
}
.test-card:hover { transform: translateY(-6px); border-color: var(--red); box-shadow: 0 16px 38px rgba(200,30,46,.12); }
.test-card .top { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
/* 试管造型 */
.tube {
  position: relative;
  width: 30px; height: 58px;
  border: 2.5px solid var(--red);
  border-radius: 6px 6px 14px 14px;
  flex-shrink: 0;
}
.tube::before {
  content: "";
  position: absolute;
  top: 0; left: -6px; right: -6px;
  height: 8px;
  background: var(--red);
  border-radius: 4px;
}
.tube::after {
  content: "";
  position: absolute;
  left: 4px; right: 4px;
  bottom: 4px;
  height: 40%;
  background: linear-gradient(180deg, var(--red-bright), var(--red-dark));
  border-radius: 0 0 10px 10px;
}
.tube.level-1::after { height: 20%; }
.tube.level-2::after { height: 38%; }
.tube.level-3::after { height: 55%; }
.tube.level-4::after { height: 72%; }
.test-card .t-name h3 { font-size: 17px; letter-spacing: 1px; }
.test-card .t-name span { font-size: 12px; color: var(--red); font-family: var(--mono); letter-spacing: 1px; }
.test-card p { font-size: 13px; color: var(--ink-soft); }
.test-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 18px; }
.metric {
  background: var(--white);
  border: 1px dashed var(--line);
  border-radius: 10px;
  padding: 12px;
  text-align: center;
}
.metric .m-label { font-size: 11px; color: var(--ink-soft); }
.metric .m-val { font-size: 18px; color: var(--red-dark); font-family: var(--mono); font-weight: 700; margin-top: 4px; }
.metric .m-val small { font-size: 11px; color: var(--ink-soft); }
.metric .m-range { font-size: 10.5px; color: var(--ink-soft); margin-top: 3px; }
.test-foot { margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; }
.test-foot .price { font-size: 14px; color: var(--red); font-weight: 700; }
.test-foot .price small { font-size: 11px; font-weight: 400; color: var(--ink-soft); }
.test-foot .go { font-size: 13px; color: var(--red); }

/* ---------- 检验流程 ---------- */
.flow-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; align-items: start; }
.flow-step { text-align: center; position: relative; }
.flow-step .f-ic {
  width: 64px; height: 64px;
  margin: 0 auto 14px;
  background: #fff;
  border: 2px solid var(--red);
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: 28px;
  color: var(--red);
  box-shadow: 0 10px 26px rgba(200,30,46,.14);
}
.flow-step h4 { font-size: 15px; }
.flow-step p { font-size: 12.5px; color: var(--ink-soft); margin-top: 6px; }
.flow-arrow { position: absolute; top: 32px; right: -14px; color: var(--red); font-size: 16px; z-index: 2; }

/* ---------- 报告解读 ---------- */
.report-wrap { display: grid; grid-template-columns: 1fr 1.2fr; gap: 40px; align-items: center; }
.report-viz {
  background: linear-gradient(150deg, #ffecec, #fff);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 34px;
  position: relative;
}
.report-sheet {
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 14px 34px rgba(200,30,46,.14);
  overflow: hidden;
  border: 1px solid var(--line);
}
.report-sheet .r-head {
  background: var(--red);
  color: #fff;
  padding: 14px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  letter-spacing: 2px;
}
.report-sheet .r-row {
  display: flex;
  justify-content: space-between;
  padding: 12px 20px;
  border-bottom: 1px dashed var(--line);
  font-size: 13px;
}
.report-sheet .r-row .v { font-family: var(--mono); color: var(--red-dark); font-weight: 700; }
.report-sheet .r-row .flag { font-size: 11px; padding: 1px 8px; border-radius: 10px; }
.report-sheet .r-row .flag.hi { background: #ffe9ea; color: var(--red); }
.report-sheet .r-row .flag.ok { background: #e8f7ec; color: #2c7a47; }
.report-txt .lead { font-size: 18px; color: var(--red-dark); font-weight: 700; margin-bottom: 14px; }
.report-txt p { color: var(--ink-soft); font-size: 14px; margin-bottom: 14px; }
.report-points { display: grid; gap: 14px; margin-top: 20px; }
.report-point { display: flex; gap: 12px; padding: 16px 18px; background: #fff; border-left: 4px solid var(--red); border-radius: 8px; box-shadow: 0 6px 18px rgba(200,30,46,.08); }
.report-point .ic { color: var(--red); }
.report-point h4 { font-size: 15px; }
.report-point p { font-size: 13px; color: var(--ink-soft); margin: 4px 0 0; }

/* ---------- 联系 ---------- */
.contact-wrap { display: grid; grid-template-columns: 1fr 1.2fr; gap: 36px; }
.info-panel { background: #fff; border-radius: 14px; padding: 36px; border: 1px solid var(--line); border-top: 4px solid var(--red); }
.info-panel h3 { font-size: 21px; letter-spacing: 2px; color: var(--red-dark); margin-bottom: 8px; }
.info-panel > p { font-size: 13.5px; color: var(--ink-soft); margin-bottom: 22px; }
.info-list li { display: flex; gap: 12px; align-items: center; padding: 13px 0; border-bottom: 1px dashed var(--line); font-size: 14px; }
.info-list li .ic { color: var(--red); }
.form-panel { background: #fff; border-radius: 14px; padding: 36px; border: 1px solid var(--line); box-shadow: 0 12px 36px rgba(200,30,46,.1); }
.form-panel h3 { font-size: 20px; letter-spacing: 2px; color: var(--red-dark); margin-bottom: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 13px; color: var(--ink-soft); margin-bottom: 8px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid #eccaca;
  border-radius: 8px;
  background: var(--white);
  font-family: inherit;
  font-size: 14px;
  color: var(--ink);
  transition: border-color .3s, box-shadow .3s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(200,30,46,.1);
}
.form-group textarea { min-height: 110px; resize: vertical; }
.form-group .error { display: none; color: var(--red); font-size: 12px; margin-top: 5px; }
.form-group.invalid input, .form-group.invalid textarea { border-color: var(--red); }
.form-group.invalid .error { display: block; }
.form-success { display: none; text-align: center; padding: 40px; background: #ffecec; border-radius: 12px; border: 1px dashed var(--red); }
.form-success .ok { width: 60px; height: 60px; margin: 0 auto; background: var(--red); color: #fff; border-radius: 50%; display: grid; place-items: center; font-size: 26px; }
.form-success h4 { margin: 14px 0 6px; font-size: 20px; color: var(--red-dark); }

/* ---------- 页脚 ---------- */
.footer { background: var(--red-deep); color: rgba(255,255,255,.8); padding: 60px 0 26px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; }
.footer .brand-name strong { color: #fff; }
.footer .brand-name small { color: #ffb3ba; }
.footer-brand p { font-size: 13px; line-height: 2; margin-top: 16px; opacity: .85; }
.footer h5 { font-size: 15px; letter-spacing: 3px; color: #ffb3ba; margin-bottom: 20px; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 13px; transition: color .25s; }
.footer-links a:hover { color: #ffb3ba; }
.footer-contact li { font-size: 13px; margin-bottom: 12px; line-height: 1.8; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.14); margin-top: 44px; padding-top: 22px; text-align: center; font-size: 12px; opacity: .55; }

/* ---------- 子页面 Hero ---------- */
.page-hero {
  padding: 160px 0 80px;
  text-align: center;
  position: relative;
  background: linear-gradient(180deg, var(--white), #ffecec);
  border-bottom: 3px solid var(--red);
}
.page-hero h1 { font-size: 40px; letter-spacing: 5px; color: var(--red-dark); }
.page-hero .crumb { margin-top: 14px; font-size: 13px; letter-spacing: 3px; color: var(--ink-soft); }
.page-hero .crumb a:hover { color: var(--red); }
.page-hero .crumb span { color: var(--red); }

/* ---------- 关于页 ---------- */
.story-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center; }
.story-txt p { color: var(--ink-soft); font-size: 14px; margin-bottom: 14px; }
.story-txt .lead { color: var(--red-dark); font-size: 18px; font-weight: 700; }
.story-img img { border-radius: 14px; box-shadow: 0 18px 44px rgba(200,30,46,.2); border: 6px solid #fff; }
.qualify-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.qualify-card { background: #fff; border-radius: 12px; padding: 32px 26px; border-left: 5px solid var(--red); box-shadow: 0 8px 24px rgba(200,30,46,.08); }
.qualify-card .ic { font-size: 30px; }
.qualify-card h3 { font-size: 17px; margin-top: 12px; color: var(--red-dark); }
.qualify-card p { font-size: 13px; color: var(--ink-soft); margin-top: 8px; }

/* ---------- 产品页 ---------- */
.channel-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.channel-card { background: #fff; border-radius: 12px; padding: 30px; border: 1px solid var(--line); transition: all .3s; }
.channel-card:hover { border-color: var(--red); transform: translateY(-6px); box-shadow: 0 14px 32px rgba(200,30,46,.12); }
.channel-card .ic { font-size: 32px; }
.channel-card h3 { font-size: 17px; margin: 12px 0 8px; color: var(--red-dark); }
.channel-card p { font-size: 13px; color: var(--ink-soft); }
.channel-card ul { margin-top: 14px; }
.channel-card ul li { font-size: 13px; color: var(--ink-soft); padding: 6px 0; border-bottom: 1px dashed var(--line); }
.channel-card ul li::before { content: "◆ "; color: var(--red); font-size: 10px; }

/* ---------- 新闻页 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.news-card { background: #fff; border-radius: 12px; overflow: hidden; border: 1px solid var(--line); transition: all .3s; }
.news-card:hover { transform: translateY(-6px); border-color: var(--red); box-shadow: 0 16px 36px rgba(200,30,46,.12); }
.news-card .img { height: 190px; overflow: hidden; position: relative; }
.news-card .img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.news-card:hover .img img { transform: scale(1.07); }
.news-card .img .d {
  position: absolute;
  left: 14px; bottom: -20px;
  width: 54px; height: 54px;
  background: var(--red);
  color: #fff;
  border-radius: 10px;
  display: grid; place-items: center;
  text-align: center;
  box-shadow: 0 8px 20px rgba(200,30,46,.3);
}
.news-card .img .d b { display: block; font-size: 18px; line-height: 1.1; }
.news-card .img .d span { font-size: 10px; }
.news-card .body { padding: 34px 22px 22px; }
.news-card h3 { font-size: 16px; margin-bottom: 8px; line-height: 1.6; }
.news-card p { font-size: 13px; color: var(--ink-soft); }
.news-card .more { display: inline-block; margin-top: 12px; font-size: 13px; color: var(--red); }
.article { max-width: 800px; margin: 0 auto; background: #fff; border-radius: 14px; padding: 44px; border: 1px solid var(--line); }
.article h2 { font-size: 28px; letter-spacing: 2px; text-align: center; color: var(--red-dark); }
.article .meta { text-align: center; font-size: 13px; color: var(--red); margin: 14px 0 26px; }
.article img { border-radius: 10px; margin-bottom: 24px; }
.article p { font-size: 15px; color: var(--ink-soft); margin-bottom: 16px; text-indent: 2em; }
.article h3 { color: var(--red-dark); margin: 24px 0 12px; font-size: 20px; }

/* ---------- 联系页 ---------- */
.contact-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.contact-card { background: #fff; border-radius: 12px; padding: 34px 24px; text-align: center; border: 1px solid var(--line); transition: all .3s; }
.contact-card:hover { border-color: var(--red); transform: translateY(-6px); }
.contact-card .ic { font-size: 30px; }
.contact-card h4 { font-size: 16px; margin: 12px 0 6px; color: var(--red-dark); }
.contact-card p { font-size: 13.5px; color: var(--ink-soft); }

/* ---------- 返回顶部 ---------- */
.back-top {
  position: fixed;
  right: 28px; bottom: 28px;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--red);
  color: #fff;
  border: none;
  font-size: 18px;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: all .3s;
  z-index: 99;
  box-shadow: 0 8px 22px rgba(200,30,46,.35);
}
.back-top.show { opacity: 1; pointer-events: auto; }
.back-top:hover { background: var(--red-dark); }

/* ---------- 滚动动画 ---------- */
.reveal { opacity: 0; transform: translateY(34px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-left { transform: translateX(-44px); }
.reveal-left.visible { transform: translateX(0); }
.reveal-right { transform: translateX(44px); }
.reveal-right.visible { transform: translateX(0); }
.delay-1 { transition-delay: .1s; }
.delay-2 { transition-delay: .2s; }
.delay-3 { transition-delay: .3s; }

/* ---------- 响应式 ---------- */
@media (max-width: 992px) {
  .ability-grid { grid-template-columns: repeat(2, 1fr); }
  .test-grid, .qualify-grid, .channel-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
  .flow-grid { grid-template-columns: repeat(3, 1fr); row-gap: 40px; }
  .flow-arrow { display: none; }
  .report-wrap, .contact-wrap, .story-wrap { grid-template-columns: 1fr; }
  .contact-cards { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .nav-links {
    position: fixed;
    top: 75px;
    left: 0; right: 0;
    flex-direction: column;
    background: var(--white);
    border-bottom: 3px solid var(--red);
    padding: 14px 18px;
    transform: translateY(-150%);
    transition: transform .35s ease;
    box-shadow: 0 16px 34px rgba(200,30,46,.16);
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { padding: 13px 10px; border-bottom: 1px dashed var(--line); }
  .nav-links a:last-child { border-bottom: none; }
  .nav-cta { display: none; }
  .menu-toggle { display: flex; }
  .ability-grid, .test-grid, .qualify-grid, .channel-grid, .news-grid { grid-template-columns: 1fr; }
  .flow-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .drop-big { width: 130px; height: 154px; }
  .micro { width: 64px; height: 64px; font-size: 30px; }
  .page-hero { padding: 140px 0 70px; }
  .article { padding: 26px 20px; }
  .back-top { right: 16px; bottom: 16px; }
}

.btn-block{display:block;width:100%;text-align:center;margin-top:6px}


/* ===== CMS 表单提交反馈 ===== */
.form-success.show { display:block; }
.form-alert { padding:14px 18px; border-radius:10px; margin-bottom:20px; font-size:14px; line-height:1.8; }
.form-alert-err { background:rgba(192,57,43,.08); border:1px solid #c0392b; color:#c0392b; }
.form-success.show { padding:14px 18px; border-radius:10px; margin-bottom:20px; background:rgba(39,174,96,.1); border:1px solid #27ae60; color:#27ae60; }