/* =========================================================
   南京中泓达医药科技有限公司 — 官网样式
   设计基调：小而美。纸感底色、深青主色、铜色点缀，
   讲究留白与细线，不用花哨特效，不加载任何外部资源。
   ========================================================= */

/* ---------- 设计变量 ---------- */
:root {
  --paper:      #F7F4EE;
  --paper-2:    #FDFBF7;
  --white:      #FFFFFF;
  --ink:        #14201E;
  --ink-soft:   #4A5852;
  --ink-faint:  #7C8A83;
  --line:       #DDD6C9;
  --line-soft:  #E8E2D7;
  --teal:       #10433F;
  --teal-2:     #1B635B;
  --teal-tint:  #EDF1EC;
  --copper:     #B0693C;
  --copper-soft:#D8A87E;

  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
               "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Songti SC", "STSong", "Source Han Serif SC", "Noto Serif SC",
                "SimSun", Georgia, "Times New Roman", serif;
  --font-mono: "SF Mono", SFMono-Regular, ui-monospace, Menlo, Consolas, "Courier New", monospace;

  --gutter: 20px;
  --radius: 3px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);

  --shadow-sm: 0 1px 2px rgba(20, 32, 30, 0.04);
  --shadow-md: 0 14px 34px -22px rgba(16, 67, 63, 0.45);
}

@media (min-width: 720px) {
  :root { --gutter: 32px; }
}
@media (min-width: 1200px) {
  :root { --gutter: 40px; }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4 { margin: 0; font-weight: 600; line-height: 1.28; }
p  { margin: 0; }
ul, ol, dl, dd { margin: 0; padding: 0; }
li { list-style: none; }
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }

:focus-visible {
  outline: 2px solid var(--teal-2);
  outline-offset: 3px;
  border-radius: 2px;
}

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

.skip-link {
  position: absolute; top: -100px; left: 16px; z-index: 100;
  padding: 10px 16px; background: var(--teal); color: #fff;
  font-size: 14px; transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 12px; }

.wrap {
  width: 100%;
  max-width: calc(1180px + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- 通用排版元件 ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: 18px;
}
.eyebrow .num {
  display: inline-block;
  margin-right: 8px;
  padding-right: 8px;
  border-right: 1px solid var(--copper-soft);
}

h2 {
  font-family: var(--font-serif);
  font-size: clamp(27px, 5.6vw, 42px);
  letter-spacing: 0.005em;
  color: var(--ink);
  text-wrap: balance;
}

.lede {
  margin-top: 20px;
  font-size: 16px;
  line-height: 1.95;
  color: var(--ink-soft);
  max-width: 60ch;
}

.fine {
  margin-top: 22px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--ink-faint);
  padding-left: 12px;
  border-left: 2px solid var(--line);
}
.fine-dark { color: rgba(247, 244, 238, 0.5); border-left-color: rgba(247, 244, 238, 0.2); }

.br-sm { display: none; }
@media (min-width: 720px) { .br-sm { display: inline; } }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  font-size: 14.5px;
  font-weight: 500;
  letter-spacing: 0.04em;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.25s var(--ease), color 0.25s var(--ease),
              border-color 0.25s var(--ease), transform 0.25s var(--ease),
              box-shadow 0.25s var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: var(--teal);
  color: #F7F4EE;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background: var(--teal-2);
  transform: translateY(-1px);
  box-shadow: 0 10px 24px -14px rgba(16, 67, 63, 0.7);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn-ghost:hover { border-color: var(--teal); color: var(--teal); }

.btn-sm { padding: 9px 16px; font-size: 13px; }
.btn-block { width: 100%; }

/* =========================================================
   页头
   ========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(247, 244, 238, 0.86);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line-soft);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.site-header.is-scrolled {
  border-bottom-color: var(--line);
  background: rgba(247, 244, 238, 0.95);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 62px;
}
@media (min-width: 960px) {
  .header-inner { height: 76px; gap: 28px; }
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--teal);
  flex-shrink: 0;
}
.brand-mark {
  height: 30px;
  width: auto;
  flex-shrink: 0;
  display: block;
}

.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-cn {
  font-size: 16.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--ink);
}
.brand-en {
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.2em;
  color: var(--ink-faint);
  margin-top: 3px;
}

/* 导航：移动端折叠为面板 */
.nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  flex-direction: column;
  padding: 8px var(--gutter) 20px;
  background: var(--paper-2);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 20px 30px -24px rgba(20, 32, 30, 0.5);
}
.site-header[data-open="true"] .nav { display: flex; }

.nav a {
  position: relative;
  padding: 13px 0;
  font-size: 15px;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--line-soft);
  transition: color 0.2s var(--ease);
}
.nav a:hover, .nav a[aria-current="true"] { color: var(--teal); }

.header-cta { display: none; }

.menu-btn {
  margin-left: auto;
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 40px;
  height: 40px;
  padding: 0 8px;
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
}
.menu-btn span {
  display: block;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.3s var(--ease), opacity 0.2s var(--ease);
}
.site-header[data-open="true"] .menu-btn span:first-child { transform: translateY(3.75px) rotate(45deg); }
.site-header[data-open="true"] .menu-btn span:last-child  { transform: translateY(-3.75px) rotate(-45deg); }

@media (min-width: 960px) {
  .menu-btn { display: none; }
  .header-cta { display: inline-flex; margin-left: auto; }
  .nav {
    display: flex;
    position: static;
    flex-direction: row;
    align-items: center;
    gap: 30px;
    margin-left: auto;
    padding: 0;
    background: none;
    border: 0;
    box-shadow: none;
  }
  .nav a {
    padding: 6px 0;
    font-size: 14px;
    border-bottom: 0;
  }
  .nav a::after {
    content: "";
    position: absolute;
    left: 0; bottom: 0;
    width: 100%; height: 1px;
    background: var(--teal);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.32s var(--ease);
  }
  .nav a:hover::after, .nav a[aria-current="true"]::after { transform: scaleX(1); }
  .nav-contact { display: none; }
  .header-cta { margin-left: 6px; }
}

/* =========================================================
   Hero
   ========================================================= */
.hero {
  position: relative;
  padding: 56px 0 0;
  overflow: hidden;
  background:
    radial-gradient(1100px 520px at 78% -8%, rgba(27, 99, 91, 0.09), transparent 62%),
    radial-gradient(760px 420px at 6% 8%, rgba(176, 105, 60, 0.07), transparent 60%),
    var(--paper);
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(20, 32, 30, 0.038) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(20, 32, 30, 0.038) 1px, transparent 1px);
  background-size: 76px 76px;
  mask-image: radial-gradient(700px 460px at 68% 26%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(700px 460px at 68% 26%, #000 0%, transparent 78%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 40px;
  padding-bottom: 52px;
}
@media (min-width: 980px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: 48px;
    align-items: center;
    padding-bottom: 64px;
  }
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(31px, 7.2vw, 58px);
  line-height: 1.24;
  letter-spacing: 0.005em;
  margin-top: 4px;
  text-wrap: balance;
}
.hero-title .hl {
  color: var(--teal);
  white-space: nowrap;
  /* 用背景做高亮条，不依赖负 z-index，任何浏览器都不会被底色盖住 */
  background-image: linear-gradient(to top, rgba(216, 168, 126, 0.55), rgba(216, 168, 126, 0.1));
  background-repeat: no-repeat;
  background-size: 100% 0.3em;
  background-position: 0 86%;
}

.hero-lede { margin-top: 24px; max-width: 46ch; }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}
.hero-note {
  margin-top: 18px;
  font-size: 12.5px;
  color: var(--ink-faint);
  letter-spacing: 0.02em;
}

/* Hero 实景照片：细边框 + 等宽字体图注 */
.hero-photo {
  margin: 0;
  padding: 9px 9px 0;
  background: var(--paper-2);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
}
.hero-photo img {
  width: 100%;
  height: auto;
  display: block;
  filter: saturate(0.94) contrast(1.03);
}
.hero-photo figcaption {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding: 11px 1px 11px;
}

/* Hero 参数条 */
.spec-strip {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
}
@media (min-width: 860px) {
  .spec-strip { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
.spec-strip li {
  padding: 22px 18px 24px 0;
  border-bottom: 1px solid var(--line-soft);
}
@media (min-width: 860px) {
  .spec-strip li {
    padding: 26px 26px 30px;
    border-bottom: 0;
    border-left: 1px solid var(--line-soft);
  }
  .spec-strip li:first-child { border-left: 0; padding-left: 0; }
  .spec-strip li:last-child { padding-right: 0; }
}
.spec-strip b {
  display: block;
  font-family: var(--font-serif);
  font-size: clamp(19px, 3vw, 25px);
  font-weight: 600;
  color: var(--copper);
  letter-spacing: 0.01em;
}
.spec-strip span {
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  color: var(--ink-faint);
  line-height: 1.6;
}

/* =========================================================
   通用区块
   ========================================================= */
.section { padding-block: clamp(64px, 9vw, 112px); }
.section-tint { background: var(--teal-tint); }
.section-dark {
  background: var(--teal);
  color: #F7F4EE;
}
.section-dark .eyebrow { color: var(--copper-soft); }
.section-dark .eyebrow .num { border-right-color: rgba(216, 168, 126, 0.35); }
.section-dark h2 { color: #FBF9F4; }
.section-dark .lede { color: rgba(247, 244, 238, 0.7); }

.section-head { max-width: 720px; margin-bottom: clamp(36px, 5vw, 60px); }

.section + .section { border-top: 1px solid var(--line-soft); }
.section-dark + .section, .section + .section-dark { border-top: 0; }

/* ---------- 能力卡片 ---------- */
.cards {
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}
@media (min-width: 700px) { .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1020px) { .cards { grid-template-columns: repeat(3, minmax(0, 1fr)); } }

.card {
  background: var(--paper-2);
  padding: 30px 26px 34px;
  transition: background 0.3s var(--ease), transform 0.3s var(--ease);
}
.card:hover { background: var(--white); }
.card-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--copper);
  margin-bottom: 16px;
}
.card h3 {
  font-family: var(--font-serif);
  font-size: 19.5px;
  margin-bottom: 12px;
  letter-spacing: 0.01em;
}
.card p:not(.card-num) {
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-soft);
}

/* ---------- 分栏 ---------- */
.split { display: grid; gap: 40px; }
@media (min-width: 900px) {
  .split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 72px;
    align-items: start;
  }
}
.split-copy { position: sticky; top: 110px; }
@media (max-width: 899px) { .split-copy { position: static; } }

/* ---------- 参数清单 ---------- */
.spec-list { border-top: 1px solid var(--line); }
.spec-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line-soft);
}
.spec-row dt {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex: 1 1 auto;
  min-width: 0;
  font-size: 14.5px;
  color: var(--ink);
  letter-spacing: 0.01em;
}
.spec-row dt::after {
  content: "";
  flex: 1 1 20px;
  min-width: 14px;
  border-bottom: 1px dotted #C9C1B1;
  transform: translateY(-0.3em);
}
.spec-row dd {
  margin-left: 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--teal-2);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

/* ---------- 流程 ---------- */
.steps { counter-reset: step; display: grid; gap: 0; }
@media (min-width: 900px) {
  .steps {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0;
  }
}

.step {
  position: relative;
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 18px;
  padding: 24px 0 26px;
  border-top: 1px solid var(--line);
}
.step-num {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--copper);
  border-radius: 50%;
  color: var(--copper);
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--paper);
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
}
.step:hover .step-num { background: var(--copper); color: #fff; }

.step h3 {
  font-family: var(--font-serif);
  font-size: 17.5px;
  margin-bottom: 8px;
}
.step p {
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}
.step-meta {
  margin-top: 10px !important;
  font-family: var(--font-mono);
  font-size: 11px !important;
  letter-spacing: 0.06em;
  color: var(--ink-faint) !important;
}

@media (min-width: 900px) {
  .step {
    display: block;
    padding: 0 22px 0 0;
    border-top: 0;
  }
  .step::before {
    content: "";
    position: absolute;
    top: 18px; left: 0;
    width: 100%; height: 1px;
    background: var(--line);
  }
  .step:last-child::before { width: 100%; }
  .step-num {
    position: relative;
    z-index: 1;
    width: 36px; height: 36px;
    background: var(--paper);
  }
  .step > div { margin-top: 22px; }
  .step h3 { margin-top: 0; }
}

/* ---------- 设备表 ---------- */
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }

.table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  text-align: left;
}
.table th {
  padding: 0 16px 12px 0;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(247, 244, 238, 0.45);
  border-bottom: 1px solid rgba(247, 244, 238, 0.22);
  white-space: nowrap;
}
.table td {
  padding: 16px 16px 16px 0;
  font-size: 14px;
  color: rgba(247, 244, 238, 0.86);
  border-bottom: 1px solid rgba(247, 244, 238, 0.1);
  white-space: nowrap;
}
.table td:first-child { color: #FBF9F4; font-weight: 500; }
.table td:not(:first-child) {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: rgba(247, 244, 238, 0.7);
}
.table tbody tr { transition: background 0.2s var(--ease); }
.table tbody tr:hover { background: rgba(247, 244, 238, 0.05); }

/* ---------- 为什么 ---------- */
.why-grid {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}
.why {
  padding: 30px 0;
  border-bottom: 1px solid var(--line-soft);
}
.why h3 {
  font-family: var(--font-serif);
  font-size: 18px;
  margin-bottom: 10px;
}
.why p {
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-soft);
}

/* 两列：每行右侧留分隔线，最后一列去掉 */
@media (min-width: 700px) {
  .why-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .why { padding: 32px 32px 34px; border-right: 1px solid var(--line-soft); }
  .why:nth-child(2n) { border-right: 0; padding-right: 0; }
  .why:nth-child(2n + 1) { padding-left: 0; }
}

/* 三列：重新声明一遍，把两列时的奇偶规则覆盖掉 */
@media (min-width: 1020px) {
  .why-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .why { padding: 32px 32px 34px; border-right: 1px solid var(--line-soft); }
  .why:nth-child(2n) { padding-right: 32px; border-right: 1px solid var(--line-soft); }
  .why:nth-child(2n + 1) { padding-left: 32px; }
  .why:nth-child(3n) { padding-right: 0; border-right: 0; }
  .why:nth-child(3n + 1) { padding-left: 0; }
}

/* ---------- 合作方式 ---------- */
.models {
  display: grid;
  gap: 20px;
}
@media (min-width: 860px) {
  .models { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; }
}

.model {
  background: var(--paper-2);
  border: 1px solid var(--line);
  padding: 32px 26px 34px;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}
@media (min-width: 860px) {
  .models .model + .model { border-left: 0; }
}
.model:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--copper-soft);
  z-index: 1;
}
.model-featured {
  background: var(--teal);
  border-color: var(--teal);
  color: #F7F4EE;
}
.model-featured .model-tag { color: var(--copper-soft); }
.model-featured h3 { color: #FBF9F4; }
.model-featured .model-lead { color: rgba(247, 244, 238, 0.72); }
.model-featured li { color: rgba(247, 244, 238, 0.82); }
.model-featured li::before { background: var(--copper-soft); }

.model-tag {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: 18px;
}
.model h3 {
  font-family: var(--font-serif);
  font-size: 21px;
  margin-bottom: 12px;
}
.model-lead {
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--ink-soft);
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: 18px;
}
.model-featured .model-lead { border-bottom-color: rgba(247, 244, 238, 0.18); }
.model ul { display: grid; gap: 10px; }
.model li {
  position: relative;
  padding-left: 18px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}
.model li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.68em;
  width: 6px; height: 1px;
  background: var(--copper);
}

/* ---------- 关于 ---------- */
.about-grid { display: grid; gap: 36px; }
@media (min-width: 900px) {
  .about-grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 72px;
  }
}
.about-copy p {
  font-size: 15px;
  line-height: 1.95;
  color: var(--ink-soft);
  margin-bottom: 18px;
}
.pullquote {
  margin: 0 0 28px;
  padding: 4px 0 4px 24px;
  border-left: 2px solid var(--copper);
  font-family: var(--font-serif);
  font-size: clamp(18px, 2.6vw, 23px);
  line-height: 1.7;
  color: var(--teal);
  letter-spacing: 0.01em;
}
.about-points {
  display: grid;
  gap: 0;
  margin-top: 30px;
  border-top: 1px solid var(--line);
}
.about-points li {
  display: flex;
  gap: 14px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 14px;
}
.about-points b {
  flex: 0 0 62px;
  color: var(--teal);
  font-weight: 600;
  letter-spacing: 0.02em;
}
.about-points span { color: var(--ink-soft); }

/* ---------- 联系 ---------- */
.section-contact {
  background:
    radial-gradient(900px 420px at 10% 0%, rgba(27, 99, 91, 0.07), transparent 65%),
    var(--paper);
}
.contact-grid { display: grid; gap: 44px; }
@media (min-width: 940px) {
  .contact-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
    gap: 80px;
  }
}

.contact-list {
  margin-top: 36px;
  border-top: 1px solid var(--line);
}
.contact-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  align-items: baseline;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 15px;
}
.contact-label {
  flex: 0 0 86px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.contact-list a { color: var(--teal); border-bottom: 1px solid transparent; transition: border-color 0.2s; }
.contact-list a:hover { border-bottom-color: var(--teal); }

.contact-form {
  background: var(--paper-2);
  border: 1px solid var(--line);
  padding: 28px 22px 26px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
@media (min-width: 640px) { .contact-form { padding: 34px 30px 30px; } }

.field { margin-bottom: 18px; }
.field label {
  display: block;
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  margin-bottom: 8px;
}
.req { color: var(--copper); }

.field input,
.field textarea {
  width: 100%;
  padding: 12px 13px;
  font-family: inherit;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 2px;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.field textarea { resize: vertical; min-height: 120px; }
.field input::placeholder,
.field textarea::placeholder { color: #A9B3AD; }

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--teal-2);
  box-shadow: 0 0 0 3px rgba(27, 99, 91, 0.12);
}
.field.has-error input,
.field.has-error textarea { border-color: var(--copper); }

.form-hint {
  margin-top: 14px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--ink-faint);
}
.form-hint.is-error { color: var(--copper); }
.form-hint.is-ok { color: var(--teal-2); }

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--ink);
  color: rgba(247, 244, 238, 0.62);
  padding-block: 44px 34px;
  font-size: 13px;
}
.footer-grid {
  display: grid;
  gap: 28px;
}
@media (min-width: 820px) {
  .footer-grid {
    grid-template-columns: 1.1fr 0.9fr 1fr;
    align-items: start;
    gap: 40px;
  }
}
.footer-brand { display: flex; gap: 12px; color: var(--copper-soft); }
.footer-brand .brand-mark { height: 26px; width: auto; margin-top: 2px; }
.footer-name {
  font-size: 14.5px;
  font-weight: 500;
  color: #F7F4EE;
  letter-spacing: 0.06em;
}
.footer-tag {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(247, 244, 238, 0.4);
}

.footer-nav { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.footer-nav a {
  font-size: 13px;
  transition: color 0.2s var(--ease);
}
.footer-nav a:hover { color: #F7F4EE; }

.footer-meta p + p { margin-top: 8px; }
.footer-legal { display: flex; gap: 10px; flex-wrap: wrap; }
.footer-legal a { transition: color 0.2s var(--ease); }
.footer-legal a:hover { color: #F7F4EE; }

@media (min-width: 820px) {
  .footer-meta { text-align: right; }
  .footer-legal { justify-content: flex-end; }
}

/* =========================================================
   滚动入场动画
   ========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  will-change: opacity, transform;
}
.reveal.is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* =========================================================
   打印
   ========================================================= */
@media print {
  .site-header, .menu-btn, .hero-art, .contact-form, .site-footer, .hero-actions { display: none !important; }
  body { background: #fff; color: #000; }
  .section, .section-dark, .section-tint { background: #fff !important; color: #000 !important; padding-block: 20px; }
  .section-dark h2, .table td, .table td:first-child { color: #000 !important; }
  a { text-decoration: underline; }
}


/* =========================================================
   第二版新增：数据条 / 反应类型 / 车间 / 质控 / 产品目录
   ========================================================= */

/* ---------- 公司速览数据 ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 34px;
  border-top: 1px solid var(--line);
}
.stats li {
  padding: 18px 0;
  border-bottom: 1px solid var(--line-soft);
}
@media (min-width: 620px) {
  .stats { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .stats li {
    padding: 20px 18px;
    border-right: 1px solid var(--line-soft);
    border-bottom: 0;
  }
  .stats li:first-child { padding-left: 0; }
  .stats li:last-child { border-right: 0; padding-right: 0; }
}
.stats b {
  display: block;
  font-family: var(--font-serif);
  font-size: clamp(28px, 4.6vw, 36px);
  font-weight: 600;
  color: var(--copper);
  letter-spacing: 0.01em;
}
.stats span {
  display: block;
  margin-top: 5px;
  font-size: 12px;
  color: var(--ink-faint);
  line-height: 1.6;
}

/* ---------- 反应类型 ---------- */
.reaction-cols { display: grid; gap: 34px; }
@media (min-width: 620px) {
  .reaction-cols { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 44px; }
}

.reaction-title {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding-bottom: 12px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-serif);
  font-size: 16.5px;
  letter-spacing: 0.01em;
}
.reaction-title em {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 10px;
  font-style: normal;
  letter-spacing: 0.12em;
  color: var(--copper);
}
.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--copper);
  flex: 0 0 auto;
  transform: translateY(-2px);
}
.dot-soft { background: var(--teal-2); }

.reaction-list li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 14.5px;
  color: var(--ink);
}
.reaction-list li em {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-style: normal;
  letter-spacing: 0.02em;
  color: var(--ink-faint);
  white-space: nowrap;
}
.reaction-hazard li { font-weight: 500; }
.reaction-hazard li::before {
  content: "";
  flex: 0 0 auto;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--copper);
  transform: translateY(-3px);
}
.reaction-list:not(.reaction-hazard) li::before {
  content: "";
  flex: 0 0 auto;
  width: 5px;
  height: 1px;
  background: var(--line);
  transform: translateY(-4px);
}
.reaction-list li:last-child { border-bottom: 0; }

/* ---------- 车间卡片 ---------- */
.plants { display: grid; gap: 22px; }
@media (min-width: 820px) {
  .plants { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
}
.plant {
  background: rgba(247, 244, 238, 0.035);
  border: 1px solid rgba(247, 244, 238, 0.14);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.plant-photo {
  margin: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.2);
}
.plant-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.9s var(--ease);
}
.plant:hover .plant-photo img { transform: scale(1.035); }

.plant-body { padding: 22px 20px 24px; }
@media (min-width: 620px) { .plant-body { padding: 26px 26px 28px; } }
.plant-body h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  color: #FBF9F4;
  margin-bottom: 8px;
}
.plant-lead {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(247, 244, 238, 0.58);
  margin-bottom: 18px;
}
.plant-spec { border-top: 1px solid rgba(247, 244, 238, 0.16); }
.plant-spec div {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 9px 0;
  border-bottom: 1px solid rgba(247, 244, 238, 0.08);
}
.plant-spec div:last-child { border-bottom: 0; }
.plant-spec dt {
  flex: 0 0 74px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  color: rgba(247, 244, 238, 0.42);
}
.plant-spec dd {
  margin: 0;
  font-size: 12.5px;
  font-family: var(--font-mono);
  color: rgba(247, 244, 238, 0.88);
  letter-spacing: 0.01em;
}

.table-block { margin-top: 50px; }
.table-title {
  font-family: var(--font-serif);
  font-size: 18px;
  color: #FBF9F4;
  margin-bottom: 20px;
}

/* ---------- 质量与研发 ---------- */
.qc-spec { margin-top: 30px; border-top: 1px solid var(--line); }
.qc-spec div {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-soft);
}
.qc-spec dt { font-size: 14px; color: var(--ink); }
.qc-spec dd {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--teal-2);
  letter-spacing: 0.01em;
  text-align: right;
}

.split-side { display: grid; gap: 24px; align-content: start; }
.qc-photo {
  margin: 0;
  padding: 8px 8px 0;
  background: var(--paper-2);
  border: 1px solid var(--line);
}
.qc-photo img { width: 100%; height: auto; display: block; }
.qc-photo figcaption {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding: 10px 1px 10px;
}
.lab-note { border-left: 2px solid var(--copper); padding-left: 18px; }
.lab-note h3 {
  font-family: var(--font-serif);
  font-size: 17px;
  margin-bottom: 8px;
}
.lab-note p { font-size: 13.5px; line-height: 1.85; color: var(--ink-soft); }

/* ---------- 产品目录 ---------- */
.catalog {
  display: grid;
  border-top: 1px solid var(--line);
}
@media (min-width: 760px) {
  .catalog { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 56px; }
}
.catalog-group {
  padding: 24px 0 22px;
  border-bottom: 1px solid var(--line-soft);
}
.catalog-group h3 {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-serif);
  font-size: 16.5px;
  margin-bottom: 12px;
}
.catalog-group h3 em {
  font-family: var(--font-mono);
  font-size: 10px;
  font-style: normal;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.catalog-group ul { display: grid; }
.catalog-group li,
.catalog-inline li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 9px 0;
  border-bottom: 1px dotted #D6CEBF;
  font-size: 13.5px;
  color: var(--ink-soft);
}
.catalog-group li:last-child,
.catalog-inline li:last-child { border-bottom: 0; }
.catalog-group li span,
.catalog-inline li span { flex: 1 1 auto; min-width: 0; }
.catalog-group li span em,
.catalog-inline li span em {
  display: block;
  margin-top: 2px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-style: normal;
  letter-spacing: 0.03em;
  color: var(--ink-faint);
}
.catalog-group code,
.catalog-inline code {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--teal-2);
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.catalog-wide {
  margin-top: 34px;
  padding: 24px 22px 20px;
  background: var(--paper-2);
  border: 1px solid var(--line);
}
@media (min-width: 620px) { .catalog-wide { padding: 28px 30px 24px; } }
.catalog-badge {
  margin-left: auto;
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  color: var(--teal-2);
  border: 1px solid var(--line);
  border-radius: 2px;
  white-space: nowrap;
}
.catalog-inline { display: grid; }
@media (min-width: 700px) {
  .catalog-inline { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 44px; }
}
.catalog-foot {
  margin-top: 28px;
  font-size: 13px;
  color: var(--ink-soft);
}
.catalog-foot a {
  color: var(--teal);
  border-bottom: 1px solid var(--copper-soft);
  transition: border-color 0.2s var(--ease);
}
.catalog-foot a:hover { border-bottom-color: var(--teal); }

/* 打印时隐藏照片边框，避免大面积底色 */
@media print {
  .hero-photo, .qc-photo, .plant { border-color: #ccc; }
}

/* ============ 08 客户故事 ============ */
.stories {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}
.story {
  display: grid;
  gap: 24px;
  padding: 40px 0 44px;
  border-bottom: 1px solid var(--line-soft);
}
.story-head h3 {
  margin: 10px 0 0;
  font-family: var(--font-serif);
  font-size: clamp(20px, 2.8vw, 26px);
  font-weight: 600;
  line-height: 1.4;
  color: var(--ink);
}
.story-num {
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--copper);
}
.story-tag {
  margin-top: 8px;
  font-size: 12.5px;
  color: var(--ink-faint);
  letter-spacing: 0.02em;
}
.story-body p {
  font-size: 14.5px;
  line-height: 1.95;
  color: var(--ink-soft);
}
.story-body p + p { margin-top: 14px; }
.story-facts {
  align-self: start;
  display: grid;
  gap: 8px;
  padding: 16px 20px;
  background: #fff;
  border-left: 3px solid var(--copper);
}
.story-note {
  margin-top: 40px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
  letter-spacing: 0.01em;
}
.story-facts p {
  display: flex;
  gap: 12px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}
.story-facts span {
  flex: 0 0 34px;
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--ink-faint);
  padding-top: 2px;
}
@media (min-width: 900px) {
  .story {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.4fr);
    column-gap: 56px;
  }
  .story-body { grid-column: 2; }
  .story-facts { grid-column: 2; }
}

/* ============ 09 三人小组 ============ */
.team {
  display: grid;
  gap: 16px;
  margin: 0 0 44px;
}
@media (min-width: 760px) {
  .team { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
.team-card {
  padding: 26px 24px 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-top: 3px solid var(--teal);
}
.team-card-featured {
  border-top-color: var(--copper);
  background: var(--paper-2, #fbf9f4);
}
.team-role {
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--copper);
}
.team-card h3 {
  margin: 10px 0 8px;
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
}
.team-card p:not(.team-role) {
  font-size: 13px;
  line-height: 1.85;
  color: var(--ink-soft);
}
.team-note {
  margin: -22px 0 48px;
  font-size: 12.5px;
  color: var(--ink-faint);
}

/* 生产车间实拍 */
.hall-photo { margin-bottom: 34px; }
.hall-photo img { width: 100%; height: auto; display: block; }
.hall-photo figcaption {
  margin-top: 10px;
  font-size: 12px;
  color: rgba(240, 237, 230, 0.62);
}


/* ---- 断行优化：中文不留孤字，英文不拆词 ---- */
p, li, .lede, .hero-note, .card p, .story-body p, .catalog-foot {
  text-wrap: pretty;
  word-break: normal;
  overflow-wrap: break-word;
  line-break: strict;
}
h1, h2, h3, .hero-title, .section-head h2 {
  text-wrap: balance;
  word-break: normal;
}