/* ================================================================
   KANDO 独立站视觉系统
   方向：冷静的工业精密感 + 高端运动影像 + 清晰的 B2B 项目路径
   说明：全部样式为本地 CSS，不依赖 CDN、框架或在线字体。
   ================================================================ */

/* ---------- 1. 设计令牌：统一颜色、间距、圆角与动画节奏 ---------- */
:root {
  --ink: #111312;
  --ink-soft: #202320;
  --charcoal: #2e312f;
  --fog: #f1f2ee;
  --paper: #fafaf7;
  --white: #ffffff;
  --silver: #c9cdc9;
  --line: rgba(17, 19, 18, 0.18);
  --line-light: rgba(255, 255, 255, 0.24);
  /* 公司 Logo 提取的酒红色成为全站主强调色。 */
  --signal: #8b1f3d;
  --signal-dark: #651329;
  --max: 1440px;
  --gutter: clamp(20px, 4vw, 64px);
  --section: clamp(88px, 10vw, 160px);
  --radius: 2px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --shadow: 0 24px 80px rgba(13, 15, 14, 0.16);
}

/* ---------- 2. 浏览器归一化：让布局在不同设备上保持稳定 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 94px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.menu-open {
  overflow: hidden;
}

img {
  display: block;
  width: 100%;
  max-width: 100%;
}

button,
input,
select,
textarea {
  color: inherit;
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  border: 0;
}

p,
h1,
h2,
h3,
dl,
dd,
ol,
ul {
  margin-top: 0;
}

::selection {
  background: var(--signal);
  color: var(--white);
}

/* 键盘焦点统一采用高对比描边，鼠标点击时不额外显示。 */
:focus-visible {
  outline: 3px solid var(--signal);
  outline-offset: 4px;
}

/* 跳过导航链接默认藏在视口外，获得焦点时出现。 */
.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 999;
  padding: 12px 18px;
  background: var(--white);
  transform: translateY(-150%);
  transition: transform 180ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

/* ---------- 3. 通用版心、标题、按钮和文字链接 ---------- */
.shell {
  width: min(100%, var(--max));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section-pad {
  padding-block: var(--section);
}

.eyebrow {
  margin-bottom: 22px;
  color: var(--charcoal);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.19em;
  line-height: 1.2;
  text-transform: uppercase;
}

.eyebrow--light {
  color: rgba(255, 255, 255, 0.74);
}

h1,
h2,
h3 {
  font-family: "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  font-weight: 700;
  line-height: 0.96;
}

h1,
h2 {
  letter-spacing: -0.02em;
}

h1 em,
h2 em {
  color: var(--signal);
  font-style: normal;
}

h2 {
  max-width: 920px;
  margin-bottom: 0;
  font-size: clamp(46px, 6vw, 92px);
}

.section-heading {
  margin-bottom: clamp(52px, 7vw, 96px);
}

.section-heading--split {
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(240px, 0.55fr);
  gap: clamp(36px, 8vw, 140px);
  align-items: end;
}

.section-heading--split > p {
  max-width: 440px;
  margin-bottom: 4px;
  color: #565b57;
  font-size: 16px;
}

.button {
  display: inline-flex;
  min-height: 54px;
  align-items: center;
  justify-content: space-between;
  gap: 34px;
  padding: 15px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-transform: uppercase;
  transition: color 220ms ease, background 220ms ease, border-color 220ms ease, transform 220ms var(--ease);
}

.button:hover {
  transform: translateY(-2px);
}

.button--signal {
  background: var(--signal);
  color: var(--white);
}

.button--signal:hover {
  background: var(--signal-dark);
}

.button--dark {
  background: var(--ink);
  color: var(--white);
}

.button--dark:hover {
  background: var(--signal);
}

.button--outline-light {
  border-color: var(--line-light);
  color: var(--white);
}

.button--outline-light:hover {
  border-color: var(--white);
  background: var(--white);
  color: var(--ink);
}

.button--wide {
  width: 100%;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  padding-block: 7px;
  border-bottom: 1px solid currentColor;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: gap 220ms var(--ease), color 220ms ease;
}

.text-link:hover {
  gap: 24px;
  color: var(--signal);
}

.text-link--light {
  color: var(--white);
}

/* ---------- 4. 顶部通知条与主导航 ---------- */
.utility-bar {
  position: relative;
  z-index: 102;
  display: flex;
  min-height: 34px;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 8px var(--gutter);
  background: var(--signal);
  color: var(--white);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  line-height: 1.2;
  text-transform: uppercase;
}

.utility-bar p {
  margin: 0;
}

.utility-bar a {
  border-bottom: 1px solid rgba(255, 255, 255, 0.75);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: grid;
  min-height: 72px;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding-inline: var(--gutter);
  border-bottom: 1px solid var(--line);
  background: rgba(250, 250, 247, 0.98);
  color: var(--ink);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  gap: 12px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

/* 公司提供的正式 Logo 使用透明横向版本，适配浅色导航栏。 */
.brand img {
  width: clamp(176px, 15vw, 214px);
  height: auto;
}

.brand-mark {
  display: flex;
  width: 24px;
  height: 21px;
  align-items: flex-end;
  gap: 3px;
}

.brand-mark i {
  display: block;
  width: 6px;
  background: currentColor;
  transform: skewX(-18deg);
}

.brand-mark i:nth-child(1) { height: 13px; }
.brand-mark i:nth-child(2) { height: 21px; background: var(--signal); }
.brand-mark i:nth-child(3) { height: 16px; }

.primary-nav {
  display: flex;
  align-items: center;
  gap: clamp(22px, 3vw, 46px);
}

.primary-nav a,
.nav-cta {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.primary-nav a {
  position: relative;
  padding-block: 26px;
  color: rgba(17, 19, 18, 0.66);
  transition: color 180ms ease;
}

.primary-nav a::after {
  position: absolute;
  right: 0;
  bottom: 20px;
  left: 0;
  height: 1px;
  background: var(--signal);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 220ms var(--ease);
}

.primary-nav a:hover {
  color: var(--ink);
}

.primary-nav a:hover::after,
.primary-nav a.is-current::after {
  transform: scaleX(1);
}

.primary-nav a.is-current {
  color: var(--ink);
}

.nav-cta {
  justify-self: end;
  color: var(--ink);
}

.nav-cta span {
  margin-left: 8px;
  color: var(--signal);
}

.menu-toggle {
  display: none;
}

/* ---------- 5. 首屏：全幅影像、渐变遮罩和精密系统轨道 ---------- */
.hero {
  position: relative;
  min-height: calc(100svh - 106px);
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
}

.hero__media,
.hero__shade {
  position: absolute;
  inset: 0;
  height: 100%;
}

.hero__media {
  object-fit: cover;
  object-position: 50% center;
  animation: hero-enter 1.2s var(--ease) both;
}

.hero__shade {
  background:
    linear-gradient(90deg, rgba(10, 12, 11, 0.9) 0%, rgba(10, 12, 11, 0.63) 36%, rgba(10, 12, 11, 0.08) 67%, rgba(10, 12, 11, 0.16) 100%),
    linear-gradient(0deg, rgba(10, 12, 11, 0.62) 0%, transparent 38%);
}

.hero__content {
  position: relative;
  z-index: 2;
  display: flex;
  min-height: calc(100svh - 106px);
  flex-direction: column;
  justify-content: center;
  padding-top: 54px;
  padding-bottom: 148px;
}

.hero h1 {
  max-width: 930px;
  margin-bottom: 34px;
  font-size: clamp(58px, 8.4vw, 136px);
}

.hero__lead {
  max-width: 580px;
  margin-bottom: 38px;
  color: rgba(255, 255, 255, 0.8);
  font-size: clamp(17px, 1.45vw, 22px);
  line-height: 1.45;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: 34px;
}

.hero__proof {
  position: absolute;
  z-index: 3;
  right: 0;
  bottom: 0;
  left: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line-light);
}

.hero__proof div {
  min-height: 98px;
  padding: 21px 28px 18px 0;
}

.hero__proof div + div {
  padding-left: 28px;
  border-left: 1px solid var(--line-light);
}

.hero__proof dt {
  margin-bottom: 7px;
  color: rgba(255, 255, 255, 0.54);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero__proof dd {
  margin-bottom: 0;
  font-size: 13px;
  font-weight: 700;
}

.system-rail {
  position: absolute;
  z-index: 3;
  top: 0;
  right: max(18px, calc((100vw - var(--max)) / 2 + 18px));
  bottom: 0;
  display: flex;
  width: 18px;
  flex-direction: column;
  align-items: center;
  color: var(--white);
}

.system-rail span {
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-orientation: mixed;
  writing-mode: vertical-rl;
}

.system-rail span:first-child {
  margin-top: 42px;
}

.system-rail span:last-child {
  margin-bottom: 112px;
}

.system-rail i {
  width: 1px;
  flex: 1;
  margin-block: 14px;
  background: var(--signal);
}

@keyframes hero-enter {
  from { opacity: 0; transform: scale(1.035); }
  to { opacity: 1; transform: scale(1); }
}

/* ---------- 6. 受众信任带 ---------- */
.trust-strip {
  display: grid;
  grid-template-columns: minmax(120px, 0.65fr) 4fr;
  min-height: 102px;
  align-items: center;
  border-bottom: 1px solid var(--line);
  background: var(--fog);
}

.trust-strip > p {
  display: flex;
  height: 100%;
  align-items: center;
  margin: 0;
  padding-inline: var(--gutter);
  border-right: 1px solid var(--line);
  color: #767a76;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.trust-strip__items {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  padding-inline: clamp(28px, 5vw, 80px);
}

.trust-strip__items span {
  color: #5a5f5b;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

/* ---------- 7. 受众切换区：大图与项目型文案并置 ---------- */
.audience {
  background: var(--paper);
}

.audience-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-bottom: 38px;
  border-bottom: 1px solid var(--line);
}

.audience-tab {
  position: relative;
  padding: 18px 10px 16px;
  background: transparent;
  color: #737773;
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-align: left;
  text-transform: uppercase;
}

.audience-tab::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 3px;
  background: var(--signal);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 300ms var(--ease);
}

.audience-tab.is-active {
  color: var(--ink);
}

.audience-tab.is-active::after {
  transform: scaleX(1);
}

.audience-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(340px, 0.75fr);
  min-height: 640px;
  background: var(--fog);
  animation: panel-in 500ms var(--ease) both;
}

.audience-panel[hidden] {
  display: none;
}

.audience-panel__media {
  position: relative;
  min-height: 580px;
  overflow: hidden;
}

.audience-panel__media img {
  height: 100%;
  object-fit: cover;
  transition: transform 900ms var(--ease);
}

.audience-panel:hover .audience-panel__media img {
  transform: scale(1.025);
}

.image-note {
  position: absolute;
  right: 20px;
  bottom: 20px;
  padding: 10px 12px;
  background: rgba(250, 250, 247, 0.88);
  color: var(--ink);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  backdrop-filter: blur(12px);
}

.image-note--dark {
  background: rgba(17, 19, 18, 0.86);
  color: var(--white);
}

.audience-panel__copy {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(40px, 5vw, 84px);
}

.panel-index {
  position: absolute;
  top: 26px;
  right: 28px;
  color: var(--signal);
  font-size: 11px;
  font-weight: 700;
}

.audience-panel__copy h3 {
  margin-bottom: 25px;
  font-size: clamp(36px, 4vw, 64px);
  letter-spacing: -0.045em;
}

.audience-panel__copy > p:not(.eyebrow) {
  margin-bottom: 28px;
  color: #555a56;
}

.feature-list {
  margin: 0 0 36px;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.feature-list li {
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  font-weight: 700;
}

@keyframes panel-in {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 8. 模块系统叙事：深色产品目录式双栏 ---------- */
.system-story {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(420px, 0.65fr);
  min-height: 820px;
  background: var(--ink);
  color: var(--white);
}

.system-story__media {
  min-height: 720px;
  overflow: hidden;
}

.system-story__media img {
  height: 100%;
  object-fit: cover;
}

.system-story__copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(54px, 6vw, 96px);
}

.system-story__copy h2 {
  margin-bottom: 34px;
  font-size: clamp(48px, 5.4vw, 86px);
}

.system-story__copy > p:not(.eyebrow) {
  max-width: 620px;
  margin-bottom: 44px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 17px;
}

.module-list {
  margin: 0 0 46px;
  padding: 0;
  border-top: 1px solid var(--line-light);
  list-style: none;
}

.module-list li {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 8px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line-light);
}

.module-list > li > span {
  color: var(--signal);
  font-size: 10px;
  font-weight: 700;
}

.module-list strong,
.module-list small {
  display: block;
}

.module-list strong {
  margin-bottom: 3px;
  font-size: 13px;
  letter-spacing: 0.03em;
}

.module-list small {
  color: rgba(255, 255, 255, 0.5);
  font-size: 11px;
}

/* ---------- 9. 询盘配置器：原生表单选择 + 实时摘要 ---------- */
.configurator {
  background: #e5e7e3;
}

.configurator__layout {
  display: grid;
  grid-template-columns: minmax(300px, 0.7fr) minmax(520px, 1.3fr);
  gap: clamp(60px, 9vw, 150px);
  align-items: start;
}

.configurator__intro {
  position: sticky;
  top: 110px;
}

.configurator__intro h2 {
  margin-bottom: 28px;
  font-size: clamp(50px, 5.2vw, 80px);
}

.configurator__intro > p:not(.eyebrow) {
  max-width: 500px;
  color: #535854;
}

.brief-output {
  margin-top: 46px;
  padding: 24px 0 24px 28px;
  border-left: 3px solid var(--signal);
}

.brief-output > span {
  display: block;
  margin-bottom: 13px;
  color: #737874;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.brief-output strong {
  display: block;
  margin-bottom: 10px;
  font-family: "Arial Narrow", Arial, sans-serif;
  font-size: 22px;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.brief-output p {
  max-width: 420px;
  margin: 0;
  color: #5d625e;
  font-size: 13px;
}

.brief-builder fieldset {
  margin: 0;
  padding: 28px 0 34px;
  border: 0;
  border-top: 1px solid rgba(17, 19, 18, 0.24);
}

.brief-builder legend {
  width: 100%;
  margin-bottom: 20px;
  padding: 0;
  font-size: 13px;
  font-weight: 700;
}

.brief-builder legend span {
  display: inline-block;
  width: 42px;
  color: var(--signal);
  font-size: 10px;
}

.choice-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.choice-row label {
  position: relative;
  cursor: pointer;
}

.choice-row input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.choice-row span {
  display: flex;
  min-height: 60px;
  align-items: center;
  justify-content: center;
  padding: 13px;
  border: 1px solid rgba(17, 19, 18, 0.22);
  background: rgba(255, 255, 255, 0.28);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-align: center;
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.choice-row input:checked + span {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--white);
}

.choice-row input:focus-visible + span {
  outline: 3px solid var(--signal);
  outline-offset: 3px;
}

.brief-builder .button {
  margin-top: 18px;
}

/* ---------- 10. 研发能力：照片与手风琴形成可信的技术叙事 ---------- */
.capabilities {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(460px, 0.85fr);
  min-height: 820px;
  background: var(--paper);
}

.capabilities__media {
  position: relative;
  min-height: 720px;
  overflow: hidden;
}

.capabilities__media img {
  height: 100%;
  object-fit: cover;
}

.capabilities__copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(54px, 6vw, 100px);
}

.capabilities__copy h2 {
  margin-bottom: 28px;
  font-size: clamp(46px, 4.8vw, 74px);
}

.capabilities__lead {
  max-width: 600px;
  margin-bottom: 42px;
  color: #575c58;
}

.capability-accordion {
  border-top: 1px solid var(--line);
}

.capability-item {
  border-bottom: 1px solid var(--line);
}

.capability-item > button {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  padding: 19px 0;
  background: transparent;
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-align: left;
  text-transform: uppercase;
}

.capability-item i,
.faq-item i {
  position: relative;
  display: block;
  width: 14px;
  height: 14px;
  flex: 0 0 14px;
}

.capability-item i::before,
.capability-item i::after,
.faq-item i::before,
.faq-item i::after {
  position: absolute;
  top: 6px;
  left: 0;
  width: 14px;
  height: 1px;
  background: currentColor;
  content: "";
  transition: transform 180ms ease;
}

.capability-item i::after,
.faq-item i::after {
  transform: rotate(90deg);
}

.capability-item.is-open i::after,
.faq-item.is-open i::after {
  transform: rotate(0);
}

.capability-item__body {
  max-width: 560px;
  padding: 0 40px 20px 0;
}

.capability-item__body p {
  margin: 0;
  color: #5f645f;
  font-size: 13px;
}

/* ---------- 11. 五阶段流程：横向技术轨道在移动端改为纵向 ---------- */
.process {
  overflow: hidden;
  background: var(--fog);
}

.process-track {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  margin: 0;
  padding: 0;
  list-style: none;
}

.process-track::before {
  position: absolute;
  top: 8px;
  right: 0;
  left: 0;
  height: 1px;
  background: var(--line);
  content: "";
}

.process-track li {
  position: relative;
  min-height: 280px;
  padding: 40px clamp(18px, 2.5vw, 38px) 28px 0;
}

.process-track li::before {
  position: absolute;
  top: 4px;
  left: 0;
  width: 9px;
  height: 9px;
  border: 2px solid var(--fog);
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 1px var(--signal);
  content: "";
}

.process-track span {
  display: block;
  margin-bottom: 34px;
  color: var(--signal);
  font-size: 10px;
  font-weight: 700;
}

.process-track h3 {
  margin-bottom: 14px;
  font-size: 30px;
  letter-spacing: -0.04em;
}

.process-track p {
  max-width: 210px;
  margin-bottom: 30px;
  color: #5c615d;
  font-size: 13px;
}

.process-track small {
  display: block;
  color: #747975;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ---------- 12. 商业增长区：用大字号结论连接产品与复购逻辑 ---------- */
.commercial-story {
  padding-block: var(--section);
  background: var(--signal);
  color: var(--white);
}

.commercial-story__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(440px, 0.85fr);
  gap: clamp(60px, 10vw, 160px);
}

.commercial-story__headline h2 {
  max-width: 780px;
  font-size: clamp(60px, 7vw, 110px);
}

.commercial-story__headline .eyebrow {
  color: rgba(255, 255, 255, 0.72);
}

.commercial-story__items {
  border-top: 1px solid rgba(255, 255, 255, 0.45);
}

.commercial-story__items article {
  display: grid;
  grid-template-columns: 34px 0.7fr 1fr;
  gap: 16px;
  padding: 26px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.45);
}

.commercial-story__items span {
  font-size: 10px;
  font-weight: 700;
}

.commercial-story__items h3 {
  margin: 0;
  font-size: 20px;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.commercial-story__items p {
  margin: 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: 13px;
}

/* ---------- 13. 常见问题 ---------- */
.faq {
  background: var(--paper);
}

.faq__layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(480px, 1.28fr);
  gap: clamp(70px, 11vw, 170px);
}

.faq__layout h2 {
  margin-bottom: 30px;
  font-size: clamp(50px, 5.4vw, 82px);
}

.faq__layout > div:first-child > p:last-child {
  max-width: 430px;
  color: #5b605c;
}

.faq__items {
  border-top: 1px solid var(--line);
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-item > button {
  display: flex;
  width: 100%;
  min-height: 78px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 0;
  background: transparent;
  cursor: pointer;
  font-size: 15px;
  font-weight: 700;
  text-align: left;
}

.faq-item > div {
  max-width: 660px;
  padding: 0 44px 26px 0;
}

.faq-item > div p {
  margin: 0;
  color: #5c615d;
  font-size: 14px;
}

/* ---------- 14. 项目询盘区与表单控件 ---------- */
.project {
  padding-block: var(--section);
  background: var(--ink);
  color: var(--white);
}

.project__layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.82fr) minmax(520px, 1.18fr);
  gap: clamp(70px, 11vw, 170px);
}

.project__intro h2 {
  margin-bottom: 34px;
  font-size: clamp(55px, 6.4vw, 98px);
}

.project__intro > p:not(.eyebrow) {
  max-width: 540px;
  color: rgba(255, 255, 255, 0.64);
}

.project__promise {
  display: flex;
  gap: 20px;
  margin-top: 54px;
  padding-top: 24px;
  border-top: 1px solid var(--line-light);
}

.project__promise > span {
  color: var(--signal);
}

.project__promise p {
  margin: 0;
  color: rgba(255, 255, 255, 0.6);
  font-size: 13px;
}

.project__promise strong {
  color: var(--white);
}

.project-form {
  padding: clamp(26px, 4vw, 54px);
  background: var(--white);
  color: var(--ink);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px 18px;
}

.field {
  display: block;
}

.field--wide {
  grid-column: 1 / -1;
}

.field > span {
  display: block;
  margin-bottom: 8px;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  border: 0;
  border-bottom: 1px solid rgba(17, 19, 18, 0.3);
  border-radius: 0;
  background: transparent;
  outline: none;
  transition: border-color 180ms ease;
}

.field input,
.field select {
  height: 48px;
}

.field textarea {
  min-height: 112px;
  padding-block: 13px;
  resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--signal);
}

.field input.is-invalid,
.field select.is-invalid {
  border-color: var(--signal);
}

.field-error {
  display: block;
  min-height: 15px;
  margin-top: 5px;
  color: var(--signal-dark);
  font-size: 10px;
}

.consent {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  margin-top: 24px;
  cursor: pointer;
  color: #626662;
  font-size: 11px;
}

.consent input {
  width: 15px;
  height: 15px;
  margin: 1px 0 0;
  accent-color: var(--signal);
}

.consent-error {
  margin-bottom: 6px;
}

.form-note {
  margin: 13px 0 0;
  color: #777b78;
  font-size: 10px;
  text-align: center;
}

/* ---------- 15. 摘要弹窗：保持本地演示的数据透明性 ---------- */
.brief-dialog {
  width: min(760px, calc(100% - 32px));
  max-height: calc(100svh - 32px);
  padding: 0;
  border: 0;
  border-radius: 0;
  background: var(--paper);
  box-shadow: var(--shadow);
  color: var(--ink);
}

.brief-dialog::backdrop {
  background: rgba(8, 10, 9, 0.76);
  backdrop-filter: blur(7px);
}

.brief-dialog__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 36px 38px 26px;
  border-bottom: 1px solid var(--line);
}

.brief-dialog__head h2 {
  font-size: clamp(36px, 5vw, 56px);
}

.dialog-close {
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  background: transparent;
  cursor: pointer;
  font-size: 32px;
  font-weight: 300;
  line-height: 1;
}

.brief-dialog pre {
  max-height: 44vh;
  overflow: auto;
  margin: 0;
  padding: 28px 38px;
  background: #e8eae6;
  font-family: Consolas, "Courier New", monospace;
  font-size: 12px;
  line-height: 1.75;
  white-space: pre-wrap;
}

.brief-dialog__actions {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 26px 38px 14px;
}

.text-button {
  padding: 10px 0;
  border-bottom: 1px solid currentColor;
  background: transparent;
  cursor: pointer;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.copy-status {
  min-height: 21px;
  margin: 0;
  padding: 0 38px 24px;
  color: #626762;
  font-size: 11px;
}

/* ---------- 16. 页脚 ---------- */
.site-footer {
  padding-top: 54px;
  background: #090b0a;
  color: var(--white);
}

.site-footer__top {
  display: grid;
  grid-template-columns: 1fr 1.6fr 1fr;
  align-items: center;
  padding-bottom: 52px;
}

.brand--footer {
  padding: 8px 12px;
  background: var(--white);
}

.brand--footer img {
  width: 210px;
}

.site-footer__top > p {
  max-width: 480px;
  margin: 0;
  color: rgba(255, 255, 255, 0.56);
  text-align: center;
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(2, auto);
  justify-content: end;
  gap: 9px 26px;
}

.footer-nav a {
  color: rgba(255, 255, 255, 0.68);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: color 180ms ease;
}

.footer-nav a:hover {
  color: var(--white);
}

.site-footer__bottom {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  padding-block: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  color: rgba(255, 255, 255, 0.42);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-footer__bottom span:nth-child(2) { text-align: center; }
.site-footer__bottom span:nth-child(3) { text-align: right; }

/* ---------- 17. 中等桌面：压缩双栏最小宽度与标题字号 ---------- */
@media (max-width: 1180px) {
  .site-header {
    grid-template-columns: auto 1fr auto;
  }

  .primary-nav {
    justify-content: center;
    gap: 22px;
  }

  .audience-panel,
  .system-story,
  .capabilities {
    grid-template-columns: 1.1fr 0.9fr;
  }

  .configurator__layout,
  .project__layout {
    gap: 70px;
  }

  .commercial-story__grid {
    gap: 70px;
  }
}

/* ---------- 18. 平板与移动导航：所有双栏逐步改为单栏 ---------- */
@media (max-width: 900px) {
  html {
    scroll-padding-top: 72px;
  }

  /* 右上角小型下拉菜单不需要锁定整页，页面仍可正常滚动。 */
  body.menu-open {
    overflow: auto;
  }

  .utility-bar {
    justify-content: space-between;
  }

  .site-header {
    min-height: 68px;
    grid-template-columns: 1fr auto;
    /* 移动端继续使用完全不透明的浅色导航，让正式酒红色 Logo 保持清晰。 */
    background: var(--paper);
    backdrop-filter: none;
    isolation: isolate;
  }

  .brand img {
    width: 170px;
  }

  .menu-toggle {
    display: flex;
    align-items: center;
    gap: 12px;
    background: transparent;
    color: var(--ink);
    cursor: pointer;
  }

  .menu-toggle__label {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
  }

  .menu-toggle__icon,
  .menu-toggle__icon::before {
    display: block;
    width: 22px;
    height: 1px;
    background: currentColor;
    content: "";
    transition: transform 220ms ease;
  }

  .menu-toggle__icon::before {
    transform: translateY(6px);
  }

  .menu-toggle[aria-expanded="true"] .menu-toggle__icon {
    transform: translateY(3px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] .menu-toggle__icon::before {
    transform: rotate(-90deg);
  }

  .primary-nav {
    /*
       菜单改为右上角独立下拉面板：紧贴吸顶栏下沿，并保持完全不透明。
       面板宽度固定在舒适阅读范围内，不再覆盖整张网页。
    */
    position: absolute;
    z-index: 99;
    top: calc(100% + 10px);
    right: var(--gutter);
    bottom: auto;
    left: auto;
    display: flex;
    width: min(360px, calc(100vw - (var(--gutter) * 2)));
    height: auto;
    min-height: 0;
    max-height: calc(100dvh - 96px);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    padding: 8px 18px 14px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    overflow-y: auto;
    overscroll-behavior: contain;
    background: #0b0d0c;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.38);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px) scale(0.985);
    transform-origin: top right;
    transition: opacity 180ms ease, transform 220ms var(--ease);
  }

  .primary-nav.is-open {
    /* 展开状态保持 100% 不透明，只遮住面板自身对应的右上角区域。 */
    background: #0b0d0c;
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .primary-nav a {
    padding: 17px 4px;
    border-bottom: 1px solid var(--line-light);
    color: var(--white);
    font-family: "Arial Narrow", Arial, sans-serif;
    font-size: 20px;
    letter-spacing: -0.015em;
    line-height: 1.1;
    text-transform: none;
  }

  .primary-nav a:last-child {
    border-bottom: 0;
  }

  .primary-nav a.is-current {
    color: var(--white);
  }

  .primary-nav a::after,
  .nav-cta {
    display: none;
  }

  .hero {
    min-height: 760px;
  }

  .hero__content {
    min-height: 760px;
  }

  .hero__media {
    object-position: 57% center;
  }

  .hero__shade {
    background:
      linear-gradient(90deg, rgba(10, 12, 11, 0.86) 0%, rgba(10, 12, 11, 0.42) 70%, rgba(10, 12, 11, 0.2) 100%),
      linear-gradient(0deg, rgba(10, 12, 11, 0.76) 0%, transparent 48%);
  }

  .section-heading--split,
  .configurator__layout,
  .commercial-story__grid,
  .faq__layout,
  .project__layout {
    grid-template-columns: 1fr;
  }

  .section-heading--split {
    gap: 30px;
  }

  .trust-strip {
    grid-template-columns: 1fr;
  }

  .trust-strip > p {
    min-height: 42px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .trust-strip__items {
    min-height: 76px;
    padding-inline: var(--gutter);
  }

  .audience-panel,
  .system-story,
  .capabilities {
    grid-template-columns: 1fr;
  }

  .audience-panel__media,
  .system-story__media,
  .capabilities__media {
    min-height: 560px;
  }

  .audience-panel__copy,
  .system-story__copy,
  .capabilities__copy {
    padding: 62px var(--gutter);
  }

  .configurator__intro {
    position: static;
  }

  .process-track {
    grid-template-columns: 1fr;
    padding-left: 26px;
  }

  .process-track::before {
    top: 0;
    right: auto;
    bottom: 0;
    left: 4px;
    width: 1px;
    height: auto;
  }

  .process-track li {
    min-height: 0;
    padding: 0 0 52px 32px;
  }

  .process-track li::before {
    top: 4px;
    left: -26px;
  }

  .process-track span {
    margin-bottom: 14px;
  }

  .process-track p {
    max-width: 520px;
    margin-bottom: 18px;
  }

  .faq__layout,
  .project__layout {
    gap: 58px;
  }

  .site-footer__top {
    grid-template-columns: 1fr 1fr;
    gap: 34px;
  }

  .site-footer__top > p {
    grid-column: 1 / -1;
    grid-row: 2;
    text-align: left;
  }
}

/* ---------- 19. 小屏手机：强化首屏可读性与触控尺寸 ---------- */
@media (max-width: 620px) {
  :root {
    --gutter: 20px;
    --section: 82px;
  }

  .utility-bar {
    min-height: 34px;
  }

  .utility-bar p {
    max-width: 230px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .utility-bar a {
    white-space: nowrap;
  }

  .brand {
    font-size: 16px;
  }

  .primary-nav {
    top: calc(100% + 8px);
    right: 12px;
    width: min(340px, calc(100vw - 24px));
  }

  h2 {
    font-size: clamp(44px, 15vw, 66px);
  }

  .hero,
  .hero__content {
    min-height: 720px;
  }

  .hero__content {
    justify-content: flex-end;
    padding-top: 110px;
    padding-bottom: 194px;
  }

  .hero__media {
    object-position: 67% center;
  }

  .hero__shade {
    background:
      linear-gradient(0deg, rgba(9, 11, 10, 0.96) 0%, rgba(9, 11, 10, 0.76) 45%, rgba(9, 11, 10, 0.06) 90%),
      linear-gradient(90deg, rgba(9, 11, 10, 0.3), transparent);
  }

  .hero h1 {
    margin-bottom: 24px;
    font-size: clamp(51px, 16vw, 72px);
  }

  .hero__lead {
    max-width: 360px;
    margin-bottom: 28px;
    font-size: 15px;
  }

  .hero__actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;
  }

  .hero__proof {
    grid-template-columns: 1fr;
    padding-inline: var(--gutter);
    background: rgba(9, 11, 10, 0.82);
    backdrop-filter: blur(10px);
  }

  .hero__proof div {
    display: grid;
    min-height: 48px;
    grid-template-columns: 90px 1fr;
    align-items: center;
    padding: 10px 0;
  }

  .hero__proof div + div {
    padding-left: 0;
    border-top: 1px solid var(--line-light);
    border-left: 0;
  }

  .hero__proof dt {
    margin: 0;
  }

  .hero__proof dd {
    font-size: 11px;
  }

  .system-rail {
    display: none;
  }

  .trust-strip__items {
    grid-template-columns: repeat(2, 1fr);
    gap: 13px 20px;
    padding-block: 18px;
  }

  .audience-tabs {
    overflow-x: auto;
  }

  .audience-tab {
    min-width: 145px;
  }

  .audience-panel__media,
  .system-story__media,
  .capabilities__media {
    min-height: 420px;
  }

  .audience-panel__copy,
  .system-story__copy,
  .capabilities__copy {
    padding: 52px var(--gutter);
  }

  .audience-panel__copy h3 {
    font-size: 42px;
  }

  .system-story__copy h2,
  .capabilities__copy h2,
  .configurator__intro h2,
  .faq__layout h2,
  .project__intro h2 {
    font-size: clamp(44px, 14vw, 62px);
  }

  .choice-row {
    grid-template-columns: 1fr;
  }

  .choice-row span {
    min-height: 50px;
    justify-content: flex-start;
    padding-inline: 16px;
  }

  .commercial-story__headline h2 {
    font-size: clamp(56px, 17vw, 80px);
  }

  .commercial-story__items article {
    grid-template-columns: 30px 1fr;
  }

  .commercial-story__items p {
    grid-column: 2;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .field--wide {
    grid-column: auto;
  }

  .project-form {
    margin-inline: -8px;
    padding: 28px 22px;
  }

  .brief-dialog__head,
  .brief-dialog pre,
  .brief-dialog__actions,
  .copy-status {
    padding-right: 22px;
    padding-left: 22px;
  }

  .brief-dialog__actions {
    align-items: stretch;
    flex-direction: column;
  }

  .site-footer__top,
  .site-footer__bottom {
    grid-template-columns: 1fr;
    text-align: left;
  }

  .site-footer__top > .text-link {
    justify-self: start;
  }

  .site-footer__bottom {
    gap: 10px;
  }

  .site-footer__bottom span:nth-child(2),
  .site-footer__bottom span:nth-child(3) {
    text-align: left;
  }
}

/* ================================================================
   21. 多页面扩展样式
   Products、Solutions、Contact 与 About Us 共用以下页面组件。
   ================================================================ */

/* ---------- 21.1 内页沉浸式首屏 ---------- */
.page-hero {
  position: relative;
  min-height: 690px;
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
}

.page-hero__media,
.page-hero__shade {
  position: absolute;
  inset: 0;
  height: 100%;
}

.page-hero__media {
  object-fit: cover;
}

.page-hero__shade {
  background:
    linear-gradient(90deg, rgba(10, 12, 11, 0.92) 0%, rgba(10, 12, 11, 0.68) 42%, rgba(10, 12, 11, 0.08) 76%),
    linear-gradient(0deg, rgba(10, 12, 11, 0.52), transparent 48%);
}

.page-hero__content {
  position: relative;
  z-index: 2;
  display: flex;
  min-height: 690px;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding-block: 90px;
}

.page-hero h1,
.contact-hero h1,
.about-hero h1 {
  margin-bottom: 30px;
  font-family: "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  font-size: clamp(62px, 8vw, 126px);
  font-weight: 700;
  letter-spacing: -0.066em;
  line-height: 0.92;
}

.page-hero h1 em,
.contact-hero h1 em,
.about-hero h1 em {
  color: var(--signal);
  font-style: normal;
}

.page-hero__content > p:not(.eyebrow) {
  max-width: 610px;
  margin-bottom: 34px;
  color: rgba(255, 255, 255, 0.75);
  font-size: clamp(16px, 1.5vw, 21px);
}

.page-hero--solutions .page-hero__media {
  object-position: 55% center;
}

/* ---------- 21.2 Products 页面：产品家族与表面系统 ---------- */
.catalog-intro {
  background: var(--paper);
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(24px, 3.2vw, 48px);
}

.catalog-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  background: var(--fog);
}

.catalog-card--wide {
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: minmax(0, 1.35fr) minmax(360px, 0.65fr);
}

.catalog-card__media {
  position: relative;
  min-height: 440px;
  overflow: hidden;
}

.catalog-card--wide .catalog-card__media {
  min-height: 610px;
}

.catalog-card__media img {
  height: 100%;
  object-fit: cover;
  transition: transform 700ms var(--ease);
}

.catalog-card:hover .catalog-card__media img {
  transform: scale(1.025);
}

.catalog-card__copy {
  display: flex;
  flex: 1;
  flex-direction: column;
  align-items: flex-start;
  padding: clamp(30px, 4vw, 58px);
}

.catalog-card__copy h3 {
  margin-bottom: 22px;
  font-size: clamp(34px, 3.4vw, 56px);
  letter-spacing: -0.045em;
}

.catalog-card__copy > p:not(.eyebrow) {
  margin-bottom: 25px;
  color: #565b57;
}

.catalog-card__copy .text-link {
  margin-top: auto;
}

.product-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin: 0 0 32px;
  padding: 0;
  list-style: none;
}

.product-tags li {
  padding: 7px 10px;
  border: 1px solid var(--line);
  color: #626762;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.finish-library {
  padding-block: var(--section);
  background: var(--ink);
  color: var(--white);
}

.finish-library__layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.7fr) minmax(560px, 1.3fr);
  gap: clamp(60px, 9vw, 140px);
  align-items: center;
}

.finish-library__copy h2 {
  margin-bottom: 30px;
  font-size: clamp(50px, 5.8vw, 88px);
}

.finish-library__copy > p:not(.eyebrow) {
  max-width: 520px;
  margin-bottom: 34px;
  color: rgba(255, 255, 255, 0.66);
}

.finish-library__swatches {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.finish-library__swatches figure {
  margin: 0;
}

.finish-library__swatches img {
  height: 390px;
  object-fit: cover;
}

.finish-library__swatches figcaption {
  padding-top: 12px;
  color: rgba(255, 255, 255, 0.56);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.product-path,
.next-steps {
  background: var(--fog);
}

.route-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.route-grid article {
  display: flex;
  min-height: 310px;
  flex-direction: column;
  padding: clamp(28px, 3.5vw, 50px);
}

.route-grid article + article {
  border-left: 1px solid var(--line);
}

.route-grid span {
  display: block;
  margin-bottom: 54px;
  color: var(--signal);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.route-grid h3 {
  margin-bottom: 18px;
  font-size: clamp(28px, 2.6vw, 40px);
  letter-spacing: -0.04em;
}

.route-grid p {
  margin-bottom: 28px;
  color: #5c615d;
  font-size: 13px;
}

.route-grid a {
  margin-top: auto;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ---------- 21.3 Solutions 页面：客户路径与开发矩阵 ---------- */
.solution-routes {
  background: var(--paper);
}

.solution-list {
  border-top: 1px solid var(--line);
}

.solution-row {
  display: grid;
  grid-template-columns: 130px minmax(320px, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(30px, 5vw, 80px);
  align-items: center;
  padding-block: clamp(56px, 7vw, 100px);
  border-bottom: 1px solid var(--line);
}

.solution-row--reverse .solution-row__media {
  grid-column: 2;
  grid-row: 1;
}

.solution-row--reverse .solution-row__copy {
  grid-column: 3;
}

.solution-row__index {
  align-self: start;
}

.solution-row__index span,
.solution-row__index small {
  display: block;
}

.solution-row__index span {
  margin-bottom: 12px;
  color: var(--signal);
  font-size: 12px;
  font-weight: 700;
}

.solution-row__index small {
  color: #777c78;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.solution-row__copy h3 {
  margin-bottom: 22px;
  font-size: clamp(42px, 4.5vw, 70px);
  letter-spacing: -0.052em;
}

.solution-row__copy > p {
  margin-bottom: 26px;
  color: #585d59;
}

.solution-row__copy ul {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  margin: 0 0 32px;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.solution-row__copy li {
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  color: #4f544f;
  font-size: 11px;
  font-weight: 700;
}

.solution-row__media {
  min-height: 520px;
  overflow: hidden;
}

.solution-row__media img {
  height: 100%;
  object-fit: cover;
}

.development-matrix {
  padding-block: var(--section);
  background: var(--signal);
  color: var(--white);
}

.development-matrix__layout {
  display: grid;
  grid-template-columns: minmax(300px, 0.7fr) minmax(560px, 1.3fr);
  gap: clamp(60px, 9vw, 150px);
  align-items: start;
}

.development-matrix h2 {
  margin-bottom: 28px;
  font-size: clamp(54px, 6vw, 92px);
}

.development-matrix__layout > div:first-child > p:last-child {
  color: rgba(255, 255, 255, 0.72);
}

.matrix-table {
  border-top: 1px solid rgba(255, 255, 255, 0.45);
}

.matrix-table__row {
  display: grid;
  grid-template-columns: 0.65fr 1fr 1fr;
  gap: 22px;
  padding: 22px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.45);
  font-size: 12px;
}

.matrix-table__head {
  color: rgba(255, 255, 255, 0.58);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.matrix-table__row strong {
  font-size: 14px;
}

.matrix-table__row span {
  color: rgba(255, 255, 255, 0.76);
}

/* ---------- 21.4 Contact 页面：排版首屏、准备清单与询盘 ---------- */
.contact-hero {
  padding-block: clamp(100px, 12vw, 180px);
  overflow: hidden;
  background: var(--signal);
  color: var(--white);
}


.contact-hero__layout {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.5fr);
  gap: clamp(50px, 9vw, 140px);
  align-items: end;
}

.contact-hero h1 {
  margin-bottom: 0;
  font-size: clamp(64px, 9vw, 142px);
}

.contact-hero h1 em {
  color: #2a0b14;
}

.contact-hero__aside > p {
  margin-bottom: 34px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 17px;
}

.contact-prep {
  background: var(--paper);
}

.contact-prep__layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.8fr) minmax(520px, 1.2fr);
  gap: clamp(70px, 11vw, 170px);
}

.contact-prep h2 {
  font-size: clamp(50px, 5.5vw, 84px);
}

.prep-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.prep-list li {
  display: grid;
  grid-template-columns: 45px 1fr;
  gap: 15px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.prep-list > li > span {
  padding-top: 4px;
  color: var(--signal);
  font-size: 10px;
  font-weight: 700;
}

.prep-list h3 {
  margin-bottom: 6px;
  font-size: 24px;
  letter-spacing: -0.025em;
}

.prep-list p {
  margin: 0;
  color: #5d625e;
  font-size: 13px;
}

.project--contact {
  scroll-margin-top: 72px;
}

.contact-channel {
  margin-top: 44px;
  padding: 20px 0;
  border-top: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
}

.contact-channel span,
.contact-channel a {
  display: block;
}

.contact-channel > span {
  margin-bottom: 8px;
  color: rgba(255, 255, 255, 0.44);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.contact-channel a {
  color: var(--white);
  font-size: 13px;
  font-weight: 700;
}

/* ---------- 21.5 About 页面：Logo 叶片与品牌原则 ---------- */
.about-hero {
  padding-block: clamp(90px, 11vw, 170px);
  overflow: hidden;
  background: var(--fog);
}

/* ================================================================
   About 页面新增：数据统计带背景图
   ================================================================ */

/* 整个区块：加背景图 + 深色遮罩，让白色文字更清晰 */
.about-stats {
  position: relative;
  padding-block: clamp(80px, 10vw, 130px); /* 上下内边距自适应 */
  background: 
    linear-gradient(rgba(10, 12, 11, 0.78), rgba(10, 12, 11, 0.88)), 
    url('素材库/about us/kando-factory-campus.png'); /* ★★★ 把这里换成你的图片路径 ★★★ */
  background-size: cover;
  background-position: center;
  background-attachment: fixed; /* 可选：视差滚动效果，更有高级感 */
  color: var(--white);
  text-align: center;
  border-block: 1px solid rgba(255, 255, 255, 0.06); /* 极细分隔线，强化工业感 */
}
/* ---------- 统计卡片图标样式 ---------- */
.stat-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  margin-bottom: 6px;
  color: var(--signal);  /* 酒红色图标 */
  background: rgba(139, 31, 61, 0.12); /* 淡淡酒红色圆形背景，增加精致感 */
  border-radius: 50%;
  transition: transform 220ms ease, background 220ms ease;
}


.stat-icon svg {
  width: 34px;
  height: 34px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* 悬停时图标微微上浮 + 背景变亮（提升交互感） */
.stat-item:hover .stat-icon {
  transform: translateY(-4px);
  background: rgba(139, 31, 61, 0.22);
}

/* ---------- 响应式调整（手机和平板） ---------- */
@media (max-width: 768px) {
  .stat-icon {
    width: 50px;
    height: 50px;
  }
  .stat-icon svg {
    width: 28px;
    height: 28px;
  }
}

@media (max-width: 480px) {
  .stat-icon {
    width: 44px;
    height: 44px;
  }
  .stat-icon svg {
    width: 24px;
    height: 24px;
  }
}

/* 网格布局：自动适配列数 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: clamp(30px, 5vw, 60px);
  max-width: 1100px;
  margin: 0 auto;
  align-items: start;
}

/* 每个数据卡片 */
.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

/* 大数字样式（使用和标题一样的字体，保持品牌统一） */
.stat-number {
  font-family: "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  font-size: clamp(52px, 6vw, 82px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--signal); /* 酒红色数字，像心跳一样突出 */
  text-shadow: 0 2px 20px rgba(139, 31, 61, 0.3); /* 微弱的发光效果 */
}

/* 标签文字 */
.stat-label {
  font-size: clamp(13px, 1.2vw, 17px);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.85);
  border-top: 2px solid rgba(255, 255, 255, 0.15);
  padding-top: 12px;
  width: 80%;
}

/* 工具类：隐藏标题但保留给屏幕阅读器 */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ---------- 响应式：平板 ---------- */
@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
  }
  .stat-label {
    width: 100%;
  }
}

/* ---------- 响应式：手机 ---------- */
@media (max-width: 480px) {
  .about-stats {
    padding-block: 60px;
    background-attachment: scroll; /* 手机上关掉视差，更流畅 */
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
  .stat-number {
    font-size: 40px;
  }
  .stat-label {
    font-size: 11px;
    letter-spacing: 0.08em;
  }
}

.about-hero__layout {
  display: grid;
  grid-template-columns: minmax(300px, 0.68fr) minmax(0, 1.32fr);
  gap: clamp(50px, 9vw, 140px);
  align-items: center;
}

.about-hero__mark {
  position: relative;
}

.about-hero__mark::after {
  position: absolute;
  right: -24px;
  bottom: 8%;
  width: 42%;
  height: 3px;
  background: var(--signal);
  content: "";
}

.about-hero__mark img {
  width: min(100%, 500px);
}

.about-hero h1 {
  color: var(--ink);
}

.about-hero__copy > p:last-child {
  max-width: 640px;
  color: #565b57;
  font-size: clamp(17px, 1.5vw, 21px);
}

.about-story {
  background: var(--paper);
}

.about-story__layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(380px, 0.8fr);
  gap: clamp(70px, 11vw, 170px);
}

.about-story h2 {
  font-size: clamp(48px, 5.4vw, 82px);
}

.about-story__copy {
  padding-top: 34px;
}

.about-story__copy p {
  color: #5a5f5b;
}

.about-story__copy .lead-copy {
  color: var(--ink);
  font-size: 21px;
  line-height: 1.45;
}

.about-image-band {
  position: relative;
  min-height: 690px;
  overflow: hidden;
}

.about-image-band > img {
  height: 690px;
  object-fit: cover;
}

.about-image-band__caption {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: rgba(17, 19, 18, 0.9);
  color: var(--white);
  backdrop-filter: blur(12px);
}

.about-image-band__caption span {
  padding: 22px 18px;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-align: center;
  text-transform: uppercase;
}

.about-image-band__caption span + span {
  border-left: 1px solid var(--line-light);
}

.principles {
  background: var(--fog);
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.principle-grid article {
  min-height: 330px;
  padding: clamp(30px, 4vw, 58px);
}

.principle-grid article + article {
  border-left: 1px solid var(--line);
}

.principle-grid span {
  display: block;
  margin-bottom: 70px;
  color: var(--signal);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.principle-grid h3 {
  margin-bottom: 18px;
  font-size: clamp(32px, 3vw, 46px);
  letter-spacing: -0.04em;
}

.principle-grid p {
  color: #595e5a;
  font-size: 13px;
}

.about-capability {
  padding-block: var(--section);
  background: var(--ink);
  color: var(--white);
}

.about-capability__layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.8fr) minmax(540px, 1.2fr);
  gap: clamp(70px, 10vw, 160px);
}

.about-capability h2 {
  font-size: clamp(52px, 6vw, 90px);
}

.about-capability__list {
  border-top: 1px solid var(--line-light);
}

.about-capability__list article {
  display: grid;
  grid-template-columns: 0.42fr 1fr;
  gap: 30px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line-light);
}

.about-capability__list strong {
  font-family: "Arial Narrow", Arial, sans-serif;
  font-size: 24px;
}

.about-capability__list p {
  margin: 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: 13px;
}

/* ---------- 21.6 所有内页共用的结尾 CTA ---------- */
.page-cta {
  padding-block: clamp(76px, 9vw, 130px);
  background: #2a0b14;
  color: var(--white);
}

.page-cta__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) auto;
  gap: 50px;
  align-items: end;
}

.page-cta h2 {
  max-width: 950px;
  font-size: clamp(48px, 6vw, 92px);
}

/* ---------- 21.7 多页面平板响应式布局 ---------- */
@media (max-width: 980px) {
  .catalog-card--wide,
  .finish-library__layout,
  .development-matrix__layout,
  .contact-hero__layout,
  .contact-prep__layout,
  .about-hero__layout,
  .about-story__layout,
  .about-capability__layout {
    grid-template-columns: 1fr;
  }

  .catalog-card--wide .catalog-card__media,
  .solution-row__media {
    min-height: 480px;
  }

  .finish-library__layout,
  .contact-hero__layout,
  .contact-prep__layout,
  .about-hero__layout,
  .about-story__layout,
  .about-capability__layout {
    gap: 54px;
  }

  .solution-row,
  .solution-row--reverse {
    grid-template-columns: 72px 1fr;
  }

  .solution-row__copy,
  .solution-row--reverse .solution-row__copy {
    grid-column: 2;
  }

  .solution-row__media,
  .solution-row--reverse .solution-row__media {
    grid-column: 2;
    grid-row: auto;
  }

  .route-grid,
  .principle-grid {
    grid-template-columns: 1fr;
  }

  .route-grid article,
  .principle-grid article {
    min-height: 0;
  }

  .route-grid article + article,
  .principle-grid article + article {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .route-grid span,
  .principle-grid span {
    margin-bottom: 36px;
  }

  .page-cta__inner {
    grid-template-columns: 1fr;
    align-items: start;
  }
}

/* ---------- 21.8 多页面手机布局 ---------- */
@media (max-width: 620px) {
  .page-hero,
  .page-hero__content {
    min-height: 650px;
  }

  .page-hero__media {
    object-position: 43% center;
  }

  .page-hero__shade {
    background: linear-gradient(0deg, rgba(9, 11, 10, 0.95), rgba(9, 11, 10, 0.26));
  }

  .page-hero__content {
    justify-content: flex-end;
    padding-bottom: 72px;
  }

  .page-hero h1,
  .contact-hero h1,
  .about-hero h1 {
    font-size: clamp(52px, 16vw, 72px);
  }

  .catalog-grid {
    grid-template-columns: 1fr;
  }

  .catalog-card--wide {
    display: flex;
    grid-column: auto;
  }

  .catalog-card__media,
  .catalog-card--wide .catalog-card__media,
  .solution-row__media {
    min-height: 360px;
  }

  .finish-library__swatches {
    grid-template-columns: 1fr;
  }

  .finish-library__swatches img {
    height: 350px;
  }

  .solution-row,
  .solution-row--reverse {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .solution-row__index,
  .solution-row__copy,
  .solution-row__media,
  .solution-row--reverse .solution-row__copy,
  .solution-row--reverse .solution-row__media {
    grid-column: 1;
  }

  .solution-row__copy ul {
    grid-template-columns: 1fr;
  }

  .matrix-table__head {
    display: none;
  }

  .matrix-table__row {
    grid-template-columns: 1fr;
    gap: 7px;
  }

  .contact-hero {
    padding-block: 90px;
  }

  .about-hero__mark img {
    width: 74%;
    margin-inline: auto;
  }

  .about-image-band,
  .about-image-band > img {
    min-height: 520px;
    height: 520px;
  }

  .about-image-band__caption {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-image-band__caption span:nth-child(3) {
    border-top: 1px solid var(--line-light);
    border-left: 0;
  }

  .about-image-band__caption span:nth-child(4) {
    border-top: 1px solid var(--line-light);
  }

  .about-capability__list article {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .page-cta__inner {
    gap: 34px;
  }

  .footer-nav {
    grid-template-columns: repeat(2, auto);
    justify-self: start;
    justify-content: start;
  }

  .site-footer__top > p {
    grid-column: auto;
    grid-row: auto;
  }
}

/* ---------- 20. 减少动态效果：尊重用户系统的无动画偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

/* ================================================================
   22. 全站正文可读性与新版页脚
   说明：仅放大正文、导航、按钮、标签和辅助文字；所有 h1/h2/h3 标题尺寸保持原样。
   ================================================================ */

/* ---------- 22.1 全站非标题文字放大 ---------- */
body {
  font-size: 18px;
}

.utility-bar {
  font-size: 12px;
}

.eyebrow {
  font-size: 13px;
}

.primary-nav a,
.nav-cta {
  font-size: 13px;
}

.button {
  font-size: 14px;
}

.text-link {
  font-size: 14px;
}

main p:not(.eyebrow) {
  font-size: clamp(17px, 1.08vw, 19px);
  line-height: 1.7;
}

main li,
main dd {
  font-size: 16px;
  line-height: 1.6;
}

.hero__lead,
.page-hero__content > p:not(.eyebrow),
.about-hero__copy > p:last-child {
  font-size: clamp(19px, 1.5vw, 23px);
}

.hero__proof dt,
.image-note,
.module-list > li > span,
.brief-output > span,
.process-track small,
.field > span,
.footer-title {
  font-size: 12px;
}

.hero__proof dd,
.feature-list li,
.module-list strong,
.module-list small,
.choice-row span,
.capability-item__body p,
.process-track p,
.commercial-story__items p,
.faq-item > div p,
.form-note,
.consent,
.footer-column a {
  font-size: 15px;
}

.trust-strip > p,
.trust-strip__items span,
.audience-tab,
.product-tags li,
.finish-library__swatches figcaption,
.solution-row__index small,
.matrix-table__head,
.about-image-band__caption span {
  font-size: 12px;
}

.brief-builder legend,
.capability-item > button,
.faq-item > button,
.field input,
.field select,
.field textarea {
  font-size: 16px;
}

.field-error,
.copy-status {
  font-size: 13px;
}

/* ---------- 22.2 深色页脚：Logo 与背景融合，不再使用白色底块 ---------- */
.site-footer {
  padding-top: clamp(64px, 7vw, 96px);
  background: #090b0a;
}

.footer-main {
  display: grid;
  grid-template-columns: minmax(210px, 1.05fr) minmax(130px, .56fr) minmax(260px, 1.2fr) minmax(220px, .9fr);
  gap: clamp(30px, 4vw, 62px);
  align-items: start;
  padding-bottom: clamp(52px, 6vw, 82px);
}

.footer-brand {
  max-width: 330px;
}

.brand--footer {
  padding: 0;
  background: transparent;
}

.brand--footer img {
  width: min(100%, 240px);
  filter: grayscale(1) brightness(0) invert(1);
  opacity: .88;
}

.footer-brand > p {
  margin: 26px 0 0;
  color: rgba(255, 255, 255, .58);
  font-size: 16px;
  line-height: 1.65;
}

.footer-column {
  min-height: 150px;
  padding-left: 22px;
  border-left: 1px solid rgba(255, 255, 255, .16);
}

.footer-title {
  margin: 0 0 24px;
  color: #c98598;
  font-weight: 800;
  letter-spacing: .14em;
  line-height: 1.2;
  text-transform: uppercase;
}

.footer-nav {
  display: grid;
  grid-template-columns: 1fr;
  justify-content: start;
  gap: 12px;
}

.footer-nav a,
.footer-contact__details a {
  display: block;
  width: fit-content;
  color: rgba(255, 255, 255, .7);
  font-weight: 650;
  letter-spacing: .02em;
  line-height: 1.45;
  text-transform: none;
}

.footer-nav a:hover,
.footer-contact__details a:hover {
  color: var(--white);
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.footer-contact .footer-title {
  margin-bottom: 10px;
}

.footer-quote > p:not(.footer-title) {
  max-width: 290px;
  margin: 0 0 22px;
  color: rgba(255, 255, 255, .58);
  font-size: 15px;
  line-height: 1.6;
}

.footer-quote-button {
  display: inline-flex;
  width: fit-content;
  min-height: 46px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 12px 15px;
  background: var(--signal);
  color: var(--white);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.footer-quote-button:hover {
  background: var(--signal-dark);
}

.site-footer__bottom {
  font-size: 11px;
}

/* ---------- 22.3 新版页脚在平板与手机上的排列 ---------- */
@media (max-width: 980px) {
  .footer-main {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-brand {
    max-width: 390px;
  }
}

@media (max-width: 620px) {
  body {
    font-size: 17px;
  }

  main p:not(.eyebrow) {
    font-size: 17px;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .footer-brand,
  .footer-column {
    max-width: none;
    min-height: 0;
    padding: 28px 0;
    border-left: 0;
    border-bottom: 1px solid rgba(255, 255, 255, .14);
  }

  .footer-brand {
    padding-top: 0;
  }

  .brand--footer img {
    width: 220px;
  }

  .footer-title {
    margin-bottom: 18px;
  }

  .site-footer__bottom {
    font-size: 11px;
  }
}
/* ---------- 22.4 KANDO 联系方式与社媒图标 ---------- */
/* 联系信息保持紧凑但可扫描，address 重置浏览器默认斜体。 */
.footer-contact__details {
  display: flex;
  flex-direction: column;
  gap: 10px;
  color: rgba(255, 255, 255, .58);
  font-size: 14px;
  font-style: normal;
  line-height: 1.55;
}

.footer-contact__details a {
  color: rgba(255, 255, 255, .78);
  font-size: 15px;
  font-weight: 650;
}

/* 图标保持低饱和初始状态，悬浮或键盘聚焦时由底部注入渠道品牌色。 */
.footer-socials {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
}

.footer-socials .icon-content {
  position: relative;
}

.footer-socials .icon-content > :is(a, button) {
  position: relative;
  display: flex;
  width: 42px;
  height: 42px;
  overflow: hidden;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 50%;
  background: rgba(255, 255, 255, .06);
  color: rgba(255, 255, 255, .82);
  transition: color 220ms ease, border-color 220ms ease, transform 220ms ease, box-shadow 220ms ease;
}

.footer-socials .icon-content > :is(a, button):hover,
.footer-socials .icon-content > :is(a, button):focus-visible {
  border-color: transparent;
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, .28);
}

.footer-socials svg {
  position: relative;
  z-index: 1;
  width: 21px;
  height: 21px;
  fill: currentColor;
}

.footer-socials .filled {
  position: absolute;
  inset: auto 0 0;
  width: 100%;
  height: 0;
  background: var(--signal);
  transition: height 260ms cubic-bezier(.2, .75, .25, 1);
}

.footer-socials :is(a, button):hover .filled,
.footer-socials :is(a, button):focus-visible .filled {
  height: 100%;
}

.footer-socials .tooltip {
  position: absolute;
  z-index: 3;
  top: -38px;
  left: 50%;
  padding: 6px 9px;
  border-radius: 4px;
  background: #252826;
  color: var(--white);
  font-size: 11px;
  font-weight: 750;
  line-height: 1;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 6px);
  transition: opacity 180ms ease, transform 180ms ease;
  visibility: hidden;
  white-space: nowrap;
}

.footer-socials .icon-content:hover .tooltip,
.footer-socials .icon-content:focus-within .tooltip {
  opacity: 1;
  transform: translate(-50%, 0);
  visibility: visible;
}

.footer-socials :is(a, button)[data-social="whatsapp"] .filled,
.footer-socials :is(a, button)[data-social="whatsapp"] + .tooltip { background: #128c7e; }
.footer-socials :is(a, button)[data-social="facebook"] .filled,
.footer-socials :is(a, button)[data-social="facebook"] + .tooltip { background: #1877f2; }
.footer-socials :is(a, button)[data-social="youtube"] .filled,
.footer-socials :is(a, button)[data-social="youtube"] + .tooltip { background: #ff0000; }
.footer-socials :is(a, button)[data-social="instagram"] .filled,
.footer-socials :is(a, button)[data-social="instagram"] + .tooltip {
  background: linear-gradient(45deg, #405de6, #833ab4, #c13584, #e1306c, #fd1d1d, #fcb045);
}

/* 尊重系统的减少动态效果偏好。 */
@media (prefers-reduced-motion: reduce) {
  .footer-socials .icon-content > a,
  .footer-socials .filled,
  .footer-socials .tooltip {
    transition: none;
  }
}
/* ---------- 23. 顶部搜索与完整产品目录 ---------- */
/* 主导航增加搜索后改为四列，品牌、导航、搜索和询盘入口仍保持同一基线。 */
.site-header {
  grid-template-columns: auto 1fr auto auto;
  column-gap: clamp(18px, 2.2vw, 34px);
}

.primary-nav {
  justify-self: center;
}

/* 顶部搜索参考用户提供的胶囊输入框：默认圆形，聚焦或有关键词时展开。 */
.header-search {
  position: relative;
  z-index: 2;
  width: 42px;
  height: 42px;
  justify-self: end;
  color: var(--white);
  transition: width 280ms var(--ease);
}

.header-search:focus-within,
.header-search.is-active,
.header-search:has(.header-search__input:not(:placeholder-shown)) {
  width: clamp(190px, 16vw, 238px);
}

.header-search__input {
  width: 100%;
  height: 42px;
  padding: 0 14px 0 42px;
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 999px;
  outline: 0;
  background: #191a1e;
  box-shadow: 1.5px 1.5px 3px #0e0e0e, -1.5px -1.5px 3px rgba(95, 94, 94, .25);
  color: var(--white);
  font-size: 14px;
  cursor: pointer;
  transition: box-shadow 220ms ease, border-color 220ms ease;
}

.header-search__input::placeholder {
  color: rgba(255, 255, 255, .55);
}

.header-search__input:focus,
.header-search__input:not(:placeholder-shown) {
  border-color: rgba(139, 31, 61, .65);
  box-shadow: inset 1.5px 1.5px 3px #0e0e0e, inset -1.5px -1.5px 3px #5f5e5e;
  cursor: text;
}

.header-search__icon {
  position: absolute;
  top: 0;
  left: 0;
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  padding: 10px;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--white);
  cursor: pointer;
}

.header-search__icon svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-width: 1.8;
}

.header-search__icon:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

/* 分类伸缩画廊改写自项目内 AccordionGallery，使用原生 flex 实现。 */
.category-accordion {
  display: flex;
  height: clamp(280px, 31vw, 410px);
  gap: 10px;
  margin-top: clamp(38px, 5vw, 70px);
}

.category-panel {
  position: relative;
  flex: 1 1 0;
  min-width: 0;
  overflow: hidden;
  padding: 0;
  border: 0;
  border-radius: 8px;
  background: #111312;
  box-shadow: 0 20px 50px -30px rgba(0, 0, 0, .65);
  color: var(--white);
  cursor: pointer;
  isolation: isolate;
  transition: flex-grow 480ms var(--ease), transform 320ms var(--ease), filter 320ms ease;
}

.category-panel::after {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(180deg, transparent 38%, rgba(6, 8, 7, .9) 100%);
  content: "";
}

.category-panel img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(.72) contrast(.92);
  transform: scale(1.04);
  transition: filter 420ms ease, transform 700ms var(--ease);
}

.category-panel > span {
  position: absolute;
  right: 24px;
  bottom: 24px;
  left: 24px;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 5px;
  text-align: left;
}

.category-panel small {
  color: rgba(255, 255, 255, .64);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: .11em;
  text-transform: uppercase;
}

.category-panel strong {
  max-width: 100%;
  font-family: "Arial Narrow", Arial, sans-serif;
  font-size: clamp(24px, 3vw, 44px);
  letter-spacing: -.035em;
  line-height: .96;
}

.category-panel:hover,
.category-panel:focus-visible,
.category-panel.is-active {
  flex-grow: 1.85;
  transform: translateY(-4px);
}

.category-panel:hover img,
.category-panel:focus-visible img,
.category-panel.is-active img {
  filter: grayscale(0) contrast(1);
  transform: scale(1);
}

.category-panel:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

/* 目录工具栏在大量产品前提供高效率的明确筛选。 */
.product-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  margin-top: clamp(46px, 6vw, 82px);
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.product-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.product-filters button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  gap: 9px;
  padding: 9px 13px;
  border: 1px solid var(--line);
  background: transparent;
  color: rgba(17, 19, 18, .65);
  font-size: 13px;
  font-weight: 750;
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.product-filters button span {
  color: rgba(17, 19, 18, .38);
  font-size: 10px;
}

.product-filters button:hover,
.product-filters button.is-active {
  border-color: #191a1e;
  background: #191a1e;
  color: var(--white);
}

.product-filters button.is-active span {
  color: rgba(255, 255, 255, .55);
}

.product-count {
  flex: 0 0 auto;
  margin: 0;
  color: rgba(17, 19, 18, .55);
  font-size: 13px;
  font-weight: 700;
}

/* 产品网格默认四列，后续断点逐步调整。 */
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(16px, 2vw, 28px);
  margin-top: 32px;
}

/* 产品卡片同时融合用户提供的翻转结构与 SpotlightCard 追光。 */
.product-tile {
  --spotlight-x: 50%;
  --spotlight-y: 50%;
  position: relative;
  min-width: 0;
  aspect-ratio: 4 / 5;
  perspective: 1200px;
  transition: opacity 260ms ease, filter 260ms ease, transform 260ms ease;
}

.product-tile::after {
  position: absolute;
  inset: -1px;
  z-index: 2;
  border-radius: 8px;
  background: radial-gradient(260px circle at var(--spotlight-x) var(--spotlight-y), rgba(255, 255, 255, .2), transparent 68%);
  content: "";
  opacity: 0;
  pointer-events: none;
  transition: opacity 300ms ease;
}

.product-tile:hover::after,
.product-tile:focus-within::after {
  opacity: .65;
}

.product-tile__button {
  display: block;
  width: 100%;
  height: 100%;
  padding: 0;
  border: 0;
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  text-align: left;
}

.product-tile__button:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 4px;
}

.product-tile__inner {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  box-shadow: 0 16px 42px -24px rgba(0, 0, 0, .65);
  transform-style: preserve-3d;
  transition: transform 520ms var(--ease);
}

.product-tile__face {
  position: absolute;
  inset: 0;
  display: block;
  overflow: hidden;
  border-radius: 8px;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.product-tile__front {
  background: #e8e8e3;
}

.product-tile__front img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 700ms var(--ease);
}

.product-tile__shade {
  position: absolute;
  inset: 35% 0 0;
  background: linear-gradient(180deg, transparent, rgba(7, 9, 8, .86));
}

.product-tile__meta {
  position: absolute;
  right: 16px;
  bottom: 16px;
  left: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--white);
}

.product-tile__meta small,
.product-tile__back-content small {
  color: rgba(255, 255, 255, .62);
  font-size: 10px;
  font-weight: 750;
  letter-spacing: .11em;
  text-transform: uppercase;
}

.product-tile__meta strong,
.product-tile__back-content strong {
  font-family: "Arial Narrow", Arial, sans-serif;
  font-size: clamp(18px, 1.5vw, 24px);
  letter-spacing: -.02em;
  line-height: 1.02;
}

.product-tile__back {
  display: grid;
  place-items: center;
  background: #151515;
  color: var(--white);
  transform: rotateY(180deg);
}

.product-tile__back::before {
  position: absolute;
  width: 58%;
  height: 170%;
  background: linear-gradient(90deg, transparent, #6f1731, #c98598, #6f1731, transparent);
  animation: product-border-rotation 5s linear infinite;
  animation-play-state: paused;
  content: "";
}

.product-tile__back-content {
  position: absolute;
  inset: 2px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-end;
  gap: 12px;
  padding: clamp(18px, 2vw, 28px);
  border-radius: 6px;
  background: radial-gradient(circle at 70% 20%, #302129, #151515 62%);
}

.product-tile__back-content > span:last-child {
  margin-top: 8px;
  color: rgba(255, 255, 255, .68);
  font-size: 12px;
  font-weight: 750;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.product-tile__back-content b {
  color: #c98598;
}

@keyframes product-border-rotation {
  from { transform: rotateZ(0deg); }
  to { transform: rotateZ(360deg); }
}

@media (hover: hover) and (pointer: fine) {
  .product-tile:hover .product-tile__inner,
  .product-tile:focus-within .product-tile__inner {
    transform: rotateY(180deg);
  }

  .product-tile:hover .product-tile__back::before,
  .product-tile:focus-within .product-tile__back::before {
    animation-play-state: running;
  }

  /* 邻近卡片只做轻度弱化，参考组件但避免原示例的强模糊影响选购。 */
  .product-grid:has(.product-tile:hover) .product-tile:not(:hover) {
    filter: saturate(.62);
    opacity: .76;
    transform: scale(.985);
  }
}

.product-empty {
  margin-top: 46px;
  padding: 46px;
  border: 1px solid var(--line);
  text-align: center;
}

.product-empty p {
  margin: 0 0 8px;
  font-family: "Arial Narrow", Arial, sans-serif;
  font-size: 30px;
  font-weight: 750;
}

.product-empty span {
  color: rgba(17, 19, 18, .58);
}

.product-load-more-wrap {
  display: flex;
  justify-content: center;
  margin-top: 42px;
}

.product-load-more {
  min-height: 50px;
  padding: 13px 18px;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease;
}

.product-load-more:hover {
  background: var(--ink);
  color: var(--white);
}

.product-load-more[hidden] {
  display: none;
}

/* 产品详情弹窗把选中的名称直接带入询盘，形成产品到获客的闭环。 */
.product-dialog {
  width: min(920px, calc(100vw - 36px));
  max-height: min(760px, calc(100dvh - 36px));
  padding: 0;
  border: 0;
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 34px 100px rgba(0, 0, 0, .4);
}

.product-dialog::backdrop {
  background: rgba(7, 9, 8, .78);
  backdrop-filter: blur(8px);
}

.product-dialog[open] {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
}

.product-dialog__media {
  min-height: 540px;
  background: #e5e5df;
}

.product-dialog__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-dialog__content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: clamp(34px, 5vw, 72px);
}

.product-dialog__content h2 {
  margin: 8px 0 20px;
  font-size: clamp(34px, 4vw, 58px);
}

.product-dialog__content > p:not(.eyebrow) {
  margin: 0 0 30px;
  color: rgba(17, 19, 18, .62);
}

.product-dialog__close {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 2;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(17, 19, 18, .18);
  border-radius: 50%;
  background: rgba(250, 250, 247, .9);
  color: var(--ink);
  font-size: 26px;
  cursor: pointer;
}

/* 页脚的社媒占位按钮与链接共用同一视觉，不触发页面跳转。 */
.footer-socials button {
  padding: 0;
  border: 0;
  font: inherit;
  cursor: default;
}

/* ---------- 23.1 搜索、产品网格和弹窗响应式 ---------- */
@media (max-width: 1180px) {
  .site-header {
    grid-template-columns: auto 1fr auto;
  }

  .nav-cta {
    display: none;
  }

  .product-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .header-search {
    position: absolute;
    top: 13px;
    right: 110px;
    width: 42px;
  }

  .header-search:focus-within,
  .header-search.is-active,
  .header-search:has(.header-search__input:not(:placeholder-shown)) {
    width: min(230px, calc(100vw - 210px));
  }

  .category-accordion {
    height: 320px;
  }

  .product-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 720px) {
  .category-accordion {
    height: auto;
    flex-direction: column;
  }

  .category-panel,
  .category-panel:hover,
  .category-panel:focus-visible,
  .category-panel.is-active {
    min-height: 146px;
    flex: 0 0 auto;
    transform: none;
  }

  .category-panel strong {
    font-size: 30px;
  }

  .product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  .product-dialog[open] {
    grid-template-columns: 1fr;
    overflow-y: auto;
  }

  .product-dialog__media {
    min-height: min(58vw, 360px);
  }
}

@media (max-width: 520px) {
  .brand img {
    width: 148px;
  }

  .header-search {
    right: 88px;
  }

  .header-search:focus-within,
  .header-search.is-active,
  .header-search:has(.header-search__input:not(:placeholder-shown)) {
    width: min(190px, calc(100vw - 170px));
  }

  .menu-toggle__label {
    display: none;
  }

  .product-filters {
    display: grid;
    width: 100%;
    grid-template-columns: repeat(2, 1fr);
  }

  .product-filters button {
    justify-content: space-between;
  }

  .product-tile__meta {
    right: 11px;
    bottom: 11px;
    left: 11px;
  }

  .product-tile__meta strong {
    font-size: 17px;
  }
}

@media (max-width: 380px) {
  .product-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .header-search,
  .category-panel,
  .category-panel img,
  .product-tile,
  .product-tile__inner,
  .product-tile__front img {
    transition: none;
  }

  .product-tile__back::before {
    animation: none;
  }

  .product-tile__inner {
    transform: none !important;
  }

  .product-tile__back {
    display: none;
  }
}
/* 移动菜单按钮保持至少 44px 可点击区域，避免隐藏文字后只剩一条细线。 */
@media (max-width: 900px) {
  .menu-toggle {
    width: auto;
    min-width: 76px;
    min-height: 44px;
    justify-content: flex-end;
    justify-self: end;
    padding: 10px 0;
    border: 0;
  }
}

@media (max-width: 520px) {
  .menu-toggle {
    width: 44px;
    min-width: 44px;
    justify-content: center;
  }
}
/* ================================================================
   24. 精细目录、扩展搜索与逐字上浮表单
   本区覆盖前序组件样式，统一使用 KANDO 酒红、墨黑与克制的灰白层级。
   ================================================================ */

/* ---------- 24.1 顶部圆角搜索：桌面 150px，聚焦后扩展至 250px ---------- */
.header-search {
  width: 150px;
  height: 40px;
  color: var(--ink);
  transition: width 220ms ease-in-out;
}

.header-search:focus-within,
.header-search.is-active,
.header-search:has(.header-search__input:not(:placeholder-shown)) {
  width: 250px;
}

.header-search__input {
  height: 40px;
  padding: 9px 14px 9px 40px;
  border: 1px solid rgba(17, 19, 18, .26);
  background: rgba(250, 250, 247, .96);
  box-shadow: none;
  color: var(--ink);
  opacity: .82;
  cursor: text;
  transition: width 220ms ease-in-out, opacity 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.header-search__input::placeholder {
  color: rgba(17, 19, 18, .5);
}

.header-search__input:focus,
.header-search__input:not(:placeholder-shown) {
  border-color: rgba(139, 31, 61, .72);
  box-shadow: 0 0 0 3px rgba(139, 31, 61, .09);
  opacity: 1;
}

.header-search__icon {
  width: 40px;
  height: 40px;
  padding: 10px;
  color: var(--signal-dark);
}

/* ---------- 24.2 详细产品目录：大类之后继续向下进入分组与小类 ---------- */
.product-taxonomy {
  scroll-margin-top: 94px;
  margin-top: clamp(34px, 5vw, 68px);
  padding: clamp(28px, 4vw, 52px);
  border-top: 4px solid var(--signal-dark);
  background: #111312;
  color: var(--white);
  box-shadow: 0 28px 70px -48px rgba(0, 0, 0, .75);
}

.product-taxonomy[hidden] {
  display: none;
}

.taxonomy-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  padding-bottom: 26px;
  border-bottom: 1px solid rgba(255, 255, 255, .16);
}

.taxonomy-heading .eyebrow {
  margin-bottom: 8px;
  color: #d4a9b6;
}

.taxonomy-heading h2 {
  margin: 0;
  color: var(--white);
  font-size: clamp(34px, 4vw, 52px);
}

.taxonomy-view-all {
  display: inline-flex;
  min-height: 46px;
  flex: 0 0 auto;
  align-items: center;
  gap: 16px;
  padding: 11px 16px;
  border: 1px solid rgba(255, 255, 255, .34);
  background: transparent;
  color: var(--white);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 180ms ease, background 180ms ease;
}

.taxonomy-view-all:hover,
.taxonomy-view-all:focus-visible {
  border-color: var(--signal);
  background: var(--signal-dark);
}

.taxonomy-groups {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1px;
  margin-top: 1px;
  background: rgba(255, 255, 255, .14);
}

.taxonomy-group {
  min-width: 0;
  padding: 24px;
  background: #111312;
}

.taxonomy-group h3 {
  margin: 0 0 18px;
  color: rgba(255, 255, 255, .52);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.taxonomy-group__items {
  display: grid;
  gap: 3px;
}

.taxonomy-chip {
  display: grid;
  min-height: 42px;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 9px 10px;
  border: 0;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
  background: transparent;
  color: rgba(255, 255, 255, .82);
  font-size: 14px;
  text-align: left;
  cursor: pointer;
  transition: padding-left 180ms ease, background 180ms ease, color 180ms ease;
}

.taxonomy-chip small {
  display: grid;
  width: 25px;
  height: 25px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 50%;
  color: rgba(255, 255, 255, .5);
  font-size: 10px;
}

.taxonomy-chip:hover,
.taxonomy-chip:focus-visible,
.taxonomy-chip.is-active {
  padding-left: 15px;
  background: var(--signal-dark);
  color: var(--white);
}

.taxonomy-chip:hover small,
.taxonomy-chip:focus-visible small,
.taxonomy-chip.is-active small {
  border-color: rgba(255, 255, 255, .46);
  color: var(--white);
}

.taxonomy-chip:focus-visible,
.taxonomy-view-all:focus-visible {
  outline: 2px solid #d4a9b6;
  outline-offset: 2px;
}

#product-results {
  scroll-margin-top: 92px;
}

/* ---------- 24.3 联系表单：标签字母在聚焦后依次上浮 ---------- */
.form-control {
  position: relative;
  min-width: 0;
  padding-top: 4px;
}

.form-control input {
  display: block;
  width: 100%;
  height: 62px;
  padding: 18px 0 7px;
  border: 0;
  border-bottom: 2px solid rgba(17, 19, 18, .34);
  border-radius: 0;
  background: transparent;
  color: var(--ink);
  outline: 0;
}

.form-control .field__wave-label {
  position: absolute;
  top: 24px;
  left: 0;
  display: flex;
  pointer-events: none;
  color: rgba(17, 19, 18, .66);
}

.form-control .field__wave-label span {
  display: inline-block;
  min-width: 5px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
  transition: color 300ms cubic-bezier(.68, -.55, .265, 1.55), transform 300ms cubic-bezier(.68, -.55, .265, 1.55);
  transition-delay: calc(var(--i) * 24ms);
}

.form-control .field__wave-label .label-space {
  min-width: 5px;
}

.form-control input:focus,
.form-control input:not(:placeholder-shown) {
  border-bottom-color: var(--signal-dark);
}

.form-control input:focus + .field__wave-label span,
.form-control input:not(:placeholder-shown) + .field__wave-label span {
  color: var(--signal-dark);
  transform: translateY(-25px);
}

.form-control input.is-invalid {
  border-bottom-color: var(--signal);
}

.form-control input.is-invalid + .field__wave-label span {
  color: var(--signal-dark);
}

/* 表单底部说明使用更深的中性灰，满足浅色背景上的可读性要求。 */
.project-form .form-note {
  color: #565b57;
}

/* ---------- 24.4 新组件的响应式修正 ---------- */
@media (max-width: 900px) {
  .header-search {
    width: 42px;
  }

  .header-search:focus-within,
  .header-search.is-active,
  .header-search:has(.header-search__input:not(:placeholder-shown)) {
    width: min(220px, calc(100vw - 210px));
  }

  .taxonomy-heading {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 620px) {
  .product-taxonomy {
    margin-inline: var(--gutter);
    padding: 24px 18px;
  }

  .taxonomy-heading h2 {
    font-size: 34px;
  }

  .taxonomy-view-all {
    width: 100%;
    justify-content: space-between;
  }

  .taxonomy-groups {
    grid-template-columns: 1fr;
  }

  .taxonomy-group {
    padding: 22px 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .header-search,
  .header-search__input,
  .taxonomy-chip,
  .form-control .field__wave-label span {
    transition: none;
  }
}
/* 产品筛选数量与结果统计使用更高对比度，兼顾浅色和深色选中状态。 */
.product-filters button span {
  color: #626662;
}

.product-filters button:hover span,
.product-filters button.is-active span {
  color: rgba(255, 255, 255, .82);
}

.product-count {
  color: #565b57;
}
/* ---------- 25. 表单选择器与品牌复选框：保留原生交互并统一 KANDO 视觉 ---------- */
/* 下拉框外层负责箭头定位；原生 select 继续承担键盘、触摸和读屏交互。 */
.select-control {
  position: relative;
}

.select-control select {
  width: 100%;
  height: 56px;
  padding: 0 48px 0 16px;
  border: 1px solid rgba(17, 19, 18, 0.28);
  border-radius: 8px;
  appearance: none;
  -webkit-appearance: none;
  background: var(--white);
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  box-shadow: 0 1px 2px rgba(17, 19, 18, 0.04);
  transition: border-color 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.select-control select:hover {
  border-color: rgba(17, 19, 18, 0.52);
}

.select-control select:focus,
.select-control select:focus-visible {
  border-color: var(--signal);
  outline: none;
  box-shadow: 0 0 0 3px rgba(139, 31, 61, 0.14);
}

.select-control select.is-invalid {
  border-color: var(--signal);
  box-shadow: 0 0 0 3px rgba(139, 31, 61, 0.1);
}

.select-control select option {
  background: var(--white);
  color: var(--ink);
}

/* 独立箭头不会拦截点击，整个触发器都可用于展开选项。 */
.select-control__icon {
  position: absolute;
  top: 50%;
  right: 16px;
  width: 18px;
  height: 18px;
  transform: translateY(-50%);
  fill: none;
  stroke: var(--signal-dark);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  pointer-events: none;
}

/* 真正的 checkbox 只在视觉上隐藏，仍可获取焦点并参与 required 校验。 */
.custom-checkbox {
  position: relative;
  align-items: center;
  gap: 12px;
  min-height: 28px;
  color: #565b57;
  font-size: 12px;
  line-height: 1.5;
}

.custom-checkbox input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  cursor: pointer;
}

/* 默认深色方块与酒红勾选态呼应底栏和公司 Logo。 */
.custom-checkbox .checkmark {
  position: relative;
  flex: 0 0 22px;
  width: 22px;
  height: 22px;
  border: 2px solid #343434;
  border-radius: 5px;
  background: #343434;
  box-shadow: 0 2px 8px rgba(17, 19, 18, 0.12);
  transition: background-color 220ms ease, border-color 220ms ease, transform 220ms ease, box-shadow 220ms ease;
}

.custom-checkbox:hover .checkmark {
  transform: translateY(-1px);
  box-shadow: 0 5px 14px rgba(17, 19, 18, 0.16);
}

.custom-checkbox input:checked + .checkmark {
  border-color: var(--signal-dark);
  background: var(--signal-dark);
}

.custom-checkbox input:focus-visible + .checkmark {
  outline: 3px solid rgba(139, 31, 61, 0.22);
  outline-offset: 3px;
}

.custom-checkbox input.is-invalid + .checkmark {
  border-color: var(--signal);
  box-shadow: 0 0 0 3px rgba(139, 31, 61, 0.12);
}

.custom-checkbox .checkmark::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 2px;
  display: none;
  width: 5px;
  height: 10px;
  border: solid var(--white);
  border-width: 0 2px 2px 0;
  border-radius: 1px;
  filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.3));
  transform: rotate(45deg);
}

.custom-checkbox input:checked + .checkmark::after {
  display: block;
  animation: checkbox-bounce-fade-in 420ms cubic-bezier(0.165, 0.84, 0.44, 1);
}

.custom-checkbox .consent__text {
  display: block;
}

@keyframes checkbox-bounce-fade-in {
  from {
    opacity: 0;
    transform: translateY(-7px) rotate(45deg);
  }
  to {
    opacity: 1;
    transform: translateY(0) rotate(45deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .select-control select,
  .custom-checkbox .checkmark {
    transition: none;
  }

  .custom-checkbox input:checked + .checkmark::after {
    animation: none;
  }
}


/* ================================================================
   25. 产品 Mega Menu
   以采购路径和清晰层级替代图片卡片，服务 KANDO 的 B2B 解决方案定位。
   ================================================================ */

.primary-nav { align-self: stretch; }

.nav-products {
  display: flex;
  align-items: stretch;
}

.primary-nav .nav-products__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.nav-products__chevron {
  width: 6px;
  height: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
  transition: transform 180ms var(--ease);
}

.nav-products:hover .nav-products__chevron,
.nav-products:focus-within .nav-products__chevron {
  transform: translateY(2px) rotate(225deg);
}

.nav-products__toggle { display: none; }

.product-mega-menu {
  position: absolute;
  z-index: 98;
  top: 100%;
  right: var(--gutter);
  left: var(--gutter);
  max-width: calc(var(--max) - (var(--gutter) * 2));
  margin-inline: auto;
  border: 1px solid rgba(17, 19, 18, .14);
  background: rgba(250, 250, 247, .995);
  box-shadow: 0 28px 70px rgba(13, 15, 14, .18);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-9px);
  transform-origin: top center;
  transition: opacity 160ms ease, transform 220ms var(--ease);
}

.nav-products:hover > .product-mega-menu,
.nav-products:focus-within > .product-mega-menu,
.nav-products.is-menu-open > .product-mega-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.product-mega-menu__inner {
  display: grid;
  min-height: 540px;
  grid-template-columns: minmax(270px, .3fr) minmax(0, 1fr);
}

.product-mega-menu__rail {
  display: flex;
  flex-direction: column;
  padding: 28px 24px 24px;
  border-right: 1px solid var(--line);
  background: #171918;
  color: var(--white);
}

.product-mega-menu__rail > p,
.product-mega-menu__heading span {
  margin: 0;
  color: rgba(255, 255, 255, .52);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.product-mega-menu__tabs {
  margin-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, .14);
}

.product-mega-menu__category {
  position: relative;
  display: grid;
  width: 100%;
  min-height: 58px;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 10px 4px 10px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
  background: transparent;
  color: rgba(255, 255, 255, .62);
  cursor: pointer;
  text-align: left;
  transition: color 180ms ease, background 180ms ease;
}

.product-mega-menu__category::before {
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 0;
  width: 2px;
  background: #c43a61;
  content: "";
  transform: scaleY(0);
  transform-origin: center;
  transition: transform 200ms var(--ease);
}

.product-mega-menu__category strong,
.product-mega-menu__category small { display: block; }

.product-mega-menu__category strong {
  margin-bottom: 4px;
  font-family: "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  letter-spacing: -.02em;
  line-height: 1;
}

.product-mega-menu__category small {
  color: rgba(255, 255, 255, .38);
  font-size: 9px;
  letter-spacing: .02em;
  line-height: 1.2;
}

.product-mega-menu__category b {
  color: #c43a61;
  font-size: 15px;
  opacity: 0;
  transform: translateX(-7px);
  transition: opacity 180ms ease, transform 180ms var(--ease);
}

.product-mega-menu__category.is-active {
  background: rgba(255, 255, 255, .035);
  color: var(--white);
}

.product-mega-menu__category.is-active::before { transform: scaleY(1); }

.product-mega-menu__category.is-active b {
  opacity: 1;
  transform: translateX(0);
}

/* 点击一级类目后以实心圆标记锁定状态，悬停其他类目不再替换内容。 */
.product-mega-menu__category.is-locked b {
  font-size: 0;
  transform: none;
}

.product-mega-menu__category.is-locked b::before {
  content: "●";
  font-size: 9px;
}

.product-mega-menu__all {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding: 16px 0 2px;
  border-top: 1px solid rgba(255, 255, 255, .14);
  color: var(--white);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.product-mega-menu__all span { color: #c43a61; }

.product-mega-menu__content {
  min-width: 0;
  padding: clamp(30px, 3.2vw, 48px);
}

.product-mega-menu__panel[hidden] { display: none; }

.product-mega-menu__heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 36px;
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.product-mega-menu__heading > div { max-width: 650px; }

.product-mega-menu__heading span {
  display: block;
  margin-bottom: 9px;
  color: var(--signal);
}

.product-mega-menu__heading h2 {
  margin: 0 0 10px;
  font-size: clamp(34px, 3vw, 48px);
  letter-spacing: -.04em;
  line-height: .92;
}

.product-mega-menu__heading p {
  max-width: 610px;
  margin: 0;
  color: #676c67;
  font-size: 12px;
  line-height: 1.45;
}

.primary-nav .product-mega-menu__heading a {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 12px;
  padding: 7px 0;
  border-bottom: 1px solid currentColor;
  color: var(--ink);
  font-size: 10px;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.primary-nav .product-mega-menu__heading a::after,
.primary-nav .product-mega-menu__group a::after,
.primary-nav .product-mega-menu__all::after { display: none; }

.product-mega-menu__heading a b { color: var(--signal); }

.product-mega-menu__groups {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 24px clamp(22px, 2.8vw, 44px);
}

.product-mega-menu__group h3 {
  margin: 0 0 13px;
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 10px;
  letter-spacing: .12em;
  line-height: 1.2;
  text-transform: uppercase;
}

.primary-nav .product-mega-menu__group a {
  display: block;
  padding: 4px 0;
  color: #626762;
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.25;
  text-transform: none;
  transition: color 160ms ease, transform 160ms var(--ease);
}

.primary-nav .product-mega-menu__group a:hover,
.primary-nav .product-mega-menu__group a:focus-visible {
  color: var(--signal);
  transform: translateX(3px);
}

@media (max-width: 900px) {
  .nav-products {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 48px;
    align-items: center;
  }

  .primary-nav .nav-products__link { padding-right: 0; }
  .nav-products__chevron { display: none; }

  .nav-products__toggle {
    display: grid;
    width: 44px;
    height: 44px;
    place-items: center;
    justify-self: end;
    border: 1px solid rgba(255, 255, 255, .18);
    border-radius: 50%;
    background: transparent;
    color: var(--white);
    cursor: pointer;
  }

  .nav-products__toggle span {
    width: 8px;
    height: 8px;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: translateY(-2px) rotate(45deg);
    transition: transform 180ms var(--ease);
  }

  .nav-products__toggle[aria-expanded="true"] span {
    transform: translateY(2px) rotate(225deg);
  }

  .product-mega-menu,
  .nav-products:hover > .product-mega-menu,
  .nav-products:focus-within > .product-mega-menu {
    position: static;
    display: none;
    grid-column: 1 / -1;
    width: 100%;
    max-width: none;
    margin: 0;
    border: 0;
    border-bottom: 1px solid var(--line-light);
    background: transparent;
    box-shadow: none;
    opacity: 1;
    pointer-events: auto;
    transform: none;
    transition: none;
  }

  .product-mega-menu.is-open,
  .nav-products:hover > .product-mega-menu.is-open,
  .nav-products:focus-within > .product-mega-menu.is-open { display: block; }

  .product-mega-menu__inner {
    display: block;
    min-height: 0;
  }

  .product-mega-menu__rail {
    display: block;
    padding: 12px 0 14px;
    border: 0;
    background: transparent;
  }

  .product-mega-menu__rail > p,
  .product-mega-menu__all { display: none; }

  .product-mega-menu__tabs {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
    margin: 0;
    border: 0;
  }

  .product-mega-menu__category {
    display: block;
    min-height: 48px;
    padding: 10px 7px;
    border: 1px solid rgba(255, 255, 255, .18);
    color: rgba(255, 255, 255, .68);
    text-align: center;
  }

  .product-mega-menu__category::before,
  .product-mega-menu__category small,
  .product-mega-menu__category b { display: none; }

  .product-mega-menu__category.is-active {
    border-color: var(--signal);
    background: var(--signal);
  }

  .product-mega-menu__category strong {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 10px;
    letter-spacing: .02em;
    line-height: 1.2;
  }

  .product-mega-menu__content { padding: 5px 0 18px; }

  .product-mega-menu__heading {
    align-items: center;
    margin-bottom: 14px;
    padding-bottom: 14px;
    border-color: rgba(255, 255, 255, .16);
  }

  .product-mega-menu__heading span,
  .product-mega-menu__heading h2,
  .product-mega-menu__heading p { display: none; }

  .primary-nav .product-mega-menu__heading a {
    width: 100%;
    justify-content: space-between;
    padding: 8px 0;
    border: 0;
    color: var(--white);
    font-size: 11px;
  }

  .product-mega-menu__groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px 18px;
  }

  .product-mega-menu__group h3 {
    color: rgba(255, 255, 255, .48);
    font-size: 9px;
  }

  .primary-nav .product-mega-menu__group a {
    padding: 5px 0;
    border: 0;
    color: rgba(255, 255, 255, .8);
    font-size: 12px;
    line-height: 1.3;
  }
}

@media (max-width: 520px) {
  .product-mega-menu__groups { grid-template-columns: 1fr; }
}

/* ---------- 27. 统一询盘表单与自定义项目下拉 ---------- */
/* 两个页面使用同一节奏：浮动字段保持轻盈，下拉承担唯一的强调视觉。 */
.project-form .form-grid {
  gap: clamp(20px, 2.4vw, 28px) 22px;
}

.project-form .form-control {
  min-height: 78px;
}

.project-form .form-control input {
  font-size: 16px;
}

.select-field {
  position: relative;
  z-index: 2;
}

.select-field:has(.select-control.is-open) {
  z-index: 30;
}

.select-field > .select-field__label {
  margin-bottom: 10px;
  color: var(--ink);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .14em;
}

.select-control.is-enhanced > select {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  padding: 0;
  border: 0;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  overflow: hidden;
  white-space: nowrap;
}

.select-control.is-enhanced > .select-control__icon {
  display: none;
}

.project-select__trigger {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  min-height: 48px;
  padding: 6px 9px 6px 14px;
  border: 1px solid rgba(17, 19, 18, .22);
  border-radius: 10px;
  background: linear-gradient(135deg, #fff 0%, #fbfaf9 100%);
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  text-align: left;
  box-shadow: 0 4px 16px rgba(17, 19, 18, .05);
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.project-select__trigger::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 11px;
  bottom: 11px;
  width: 2px;
  border-radius: 0 4px 4px 0;
  background: var(--signal-dark);
  opacity: 0;
  transform: scaleY(.5);
  transition: opacity 180ms ease, transform 180ms ease;
}

.project-select__trigger:hover {
  border-color: rgba(139, 31, 61, .48);
  box-shadow: 0 7px 20px rgba(17, 19, 18, .08);
  transform: translateY(-1px);
}

.project-select__trigger:focus-visible,
.select-control.is-open .project-select__trigger {
  border-color: var(--signal-dark);
  outline: none;
  box-shadow: 0 0 0 3px rgba(139, 31, 61, .1), 0 8px 24px rgba(17, 19, 18, .09);
}

.select-control.is-open .project-select__trigger::before,
.project-select__trigger:not(.is-placeholder)::before {
  opacity: 1;
  transform: scaleY(1);
}

.project-select__value {
  min-width: 0;
  overflow: hidden;
  color: var(--ink);
  font-size: clamp(13px, 1.1vw, 15px);
  font-weight: 560;
  line-height: 1.25;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.project-select__trigger.is-placeholder .project-select__value {
  color: #666b67;
  font-weight: 450;
}

.project-select__trigger-mark {
  display: grid;
  flex: 0 0 30px;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: 50%;
  background: rgba(139, 31, 61, .08);
  color: var(--signal-dark);
  transition: background-color 180ms ease, color 180ms ease, transform 220ms ease;
}

.project-select__trigger-mark svg {
  width: 15px;
  height: 15px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.select-control.is-open .project-select__trigger-mark {
  background: var(--signal-dark);
  color: var(--white);
  transform: rotate(180deg);
}

.project-select__menu {
  position: absolute;
  top: calc(100% + 7px);
  left: 0;
  right: 0;
  z-index: 50;
  max-height: min(356px, 54vh);
  padding: 6px;
  border: 1px solid rgba(17, 19, 18, .13);
  border-radius: 12px;
  overflow-y: auto;
  background: rgba(255, 255, 255, .98);
  box-shadow: 0 28px 70px rgba(17, 19, 18, .2), 0 4px 14px rgba(17, 19, 18, .08);
  backdrop-filter: blur(12px);
  animation: project-select-in 180ms cubic-bezier(.2, .8, .2, 1);
}

.project-select__menu[hidden] {
  display: none;
}

.project-select__option {
  display: grid;
  grid-template-columns: 16px minmax(0, 1fr) 20px;
  align-items: center;
  gap: 12px;
  width: 100%;
  min-height: 42px;
  padding: 8px 11px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: #2b2e2c;
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  line-height: 1.35;
  text-align: left;
  transition: background-color 150ms ease, color 150ms ease, box-shadow 150ms ease;
}

.project-select__option + .project-select__option {
  margin-top: 2px;
}

.project-select__option-dot {
  width: 7px;
  height: 7px;
  border: 1px solid rgba(17, 19, 18, .35);
  border-radius: 50%;
  transition: border-color 150ms ease, background-color 150ms ease, transform 150ms ease;
}

.project-select__option-check {
  color: var(--signal-dark);
  font-size: 13px;
  font-weight: 800;
  opacity: 0;
  transform: scale(.65);
  transition: opacity 150ms ease, transform 150ms ease;
}

.project-select__option:hover,
.project-select__option:focus-visible {
  background: #f7f2f3;
  color: #67152d;
  outline: none;
}

.project-select__option.is-selected {
  background: #f3e8ec;
  color: #67152d;
  font-weight: 700;
  box-shadow: inset 3px 0 0 var(--signal-dark);
}

.project-select__option.is-selected .project-select__option-dot {
  border-color: var(--signal-dark);
  background: var(--signal-dark);
  transform: scale(1.18);
}

.project-select__option.is-selected .project-select__option-check {
  opacity: 1;
  transform: scale(1);
}

.project-select__option.is-placeholder {
  color: #767b77;
}

.select-control select.is-invalid ~ .project-select__trigger {
  border-color: var(--signal);
  box-shadow: 0 0 0 4px rgba(139, 31, 61, .1);
}

@keyframes project-select-in {
  from {
    opacity: 0;
    transform: translateY(-6px) scale(.985);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@media (max-width: 620px) {
  .project-select__trigger {
    min-height: 48px;
    padding-left: 13px;
  }

  .project-select__menu {
    max-height: min(330px, 50vh);
  }

  .project-select__option {
    min-height: 42px;
    padding-inline: 11px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .project-select__trigger,
  .project-select__trigger::before,
  .project-select__trigger-mark,
  .project-select__option,
  .project-select__option-dot,
  .project-select__option-check {
    transition: none;
  }

  .project-select__menu {
    animation: none;
  }
}


/* ---------- 28. 素材库目录、产品详情与 About 流程卡 ---------- */
/* About 图片上的流程改为轻量的样品评审卡，不再使用整块黑色遮罩。 */
.about-image-band__caption {
  right: clamp(18px, 7vw, 150px);
  bottom: 24px;
  left: clamp(18px, 7vw, 150px);
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  padding: 8px;
  border: 1px solid rgba(255, 255, 255, .55);
  border-radius: 18px;
  background: rgba(250, 249, 246, .9);
  color: var(--ink);
  box-shadow: 0 24px 70px rgba(7, 9, 8, .2);
  backdrop-filter: blur(18px) saturate(1.15);
}

.about-image-band__caption article {
  position: relative;
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 10px;
  min-height: 82px;
  align-items: center;
  padding: 13px 14px;
  border-radius: 12px;
  background: rgba(255, 255, 255, .68);
  overflow: hidden;
}

.about-image-band__caption article::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--signal-dark), rgba(139, 31, 61, .08));
  content: "";
  transform: scaleX(.3);
  transform-origin: left;
  transition: transform 260ms ease;
}

.about-image-band__caption article:hover::after {
  transform: scaleX(1);
}

.about-image-band__caption article > small {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border: 1px solid rgba(139, 31, 61, .28);
  border-radius: 50%;
  color: var(--signal-dark);
  font-size: 9px;
  font-weight: 850;
  letter-spacing: .08em;
}

.about-image-band__caption article > span {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 4px;
  padding: 0;
  text-align: left;
}

.about-image-band__caption article strong {
  font-size: 12px;
  font-weight: 850;
  letter-spacing: .07em;
  line-height: 1.2;
  text-transform: uppercase;
}

.about-image-band__caption article em {
  color: #666b67;
  font-size: 10px;
  font-style: normal;
  line-height: 1.3;
}

.category-accordion--five {
  gap: 8px;
}

.category-accordion--five .category-panel strong {
  font-size: clamp(18px, 2.05vw, 32px);
}

.category-accordion--five .category-panel > span {
  right: 18px;
  bottom: 20px;
  left: 18px;
}

.category-panel small b {
  color: inherit;
  font: inherit;
}

.taxonomy-group__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 18px;
}

.taxonomy-group__head h3 {
  margin: 0;
}

.taxonomy-group__head > button {
  padding: 0;
  border: 0;
  border-bottom: 1px solid rgba(139, 31, 61, .35);
  background: transparent;
  color: var(--signal-dark);
  cursor: pointer;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .06em;
  white-space: nowrap;
}

.product-tile__button {
  color: inherit;
  text-decoration: none;
}

.product-tile__front {
  background: #f2f1ed;
}

.product-tile__front img {
  object-fit: contain;
  background: #f2f1ed;
}

/* 产品详情页：图像与商业说明并重，参数只写确认逻辑，不虚构数值。 */
.product-detail-hero {
  padding: clamp(32px, 5vw, 68px) 0 clamp(72px, 8vw, 118px);
  background: linear-gradient(180deg, #f6f5f1 0%, #eeece6 100%);
}

.product-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-bottom: clamp(28px, 4vw, 52px);
  color: #6b706c;
  font-size: 11px;
}

.product-breadcrumb a {
  color: inherit;
  text-decoration: none;
}

.product-breadcrumb a:hover {
  color: var(--signal-dark);
}

.product-detail-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, .78fr);
  gap: clamp(44px, 7vw, 110px);
  align-items: start;
}

.product-gallery {
  min-width: 0;
}

.product-gallery__main {
  display: grid;
  aspect-ratio: 1.08 / 1;
  place-items: center;
  overflow: hidden;
  border: 1px solid rgba(17, 19, 18, .1);
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 26px 70px -42px rgba(17, 19, 18, .58);
}

.product-gallery__main img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.product-gallery__thumbs {
  display: grid;
  grid-template-columns: repeat(6, minmax(58px, 1fr));
  gap: 8px;
  margin-top: 10px;
}

.product-gallery__thumb {
  aspect-ratio: 1;
  overflow: hidden;
  padding: 0;
  border: 1px solid rgba(17, 19, 18, .13);
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
  opacity: .66;
  transition: border-color 160ms ease, opacity 160ms ease, transform 160ms ease;
}

.product-gallery__thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.product-gallery__thumb:hover,
.product-gallery__thumb:focus-visible,
.product-gallery__thumb.is-active {
  border-color: var(--signal-dark);
  outline: none;
  opacity: 1;
  transform: translateY(-2px);
}

.product-detail-intro {
  position: sticky;
  top: 118px;
  padding-top: 12px;
}

.product-detail-intro h1 {
  max-width: 680px;
  margin: 14px 0 18px;
  font-size: clamp(44px, 5.4vw, 78px);
  letter-spacing: -.055em;
  line-height: .95;
}

.product-detail-intro__positioning {
  margin: 0 0 22px;
  color: var(--signal-dark);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.product-detail-intro__summary {
  max-width: 610px;
  margin: 0;
  color: #515652;
  font-size: clamp(16px, 1.6vw, 20px);
  line-height: 1.62;
}

.product-detail-intro__signals {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 28px;
}

.product-detail-intro__signals span {
  padding: 7px 10px;
  border: 1px solid rgba(139, 31, 61, .2);
  border-radius: 999px;
  background: rgba(255, 255, 255, .54);
  color: #67152d;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.product-detail-intro__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 22px;
  margin-top: 34px;
}

.product-detail-intro__note {
  max-width: 600px;
  margin: 22px 0 0;
  padding-top: 18px;
  border-top: 1px solid rgba(17, 19, 18, .13);
  color: #737874;
  font-size: 11px;
  line-height: 1.55;
}

.product-detail-body {
  background: #fff;
}

.product-detail-overview {
  display: grid;
  grid-template-columns: minmax(260px, .8fr) minmax(420px, 1.2fr);
  gap: clamp(50px, 10vw, 170px);
}

.product-detail-overview h2,
.product-specification-block h2 {
  max-width: 620px;
  font-size: clamp(40px, 5vw, 70px);
  letter-spacing: -.05em;
  line-height: .98;
}

.product-detail-overview__copy p {
  margin: 0;
  color: #555a56;
  font-size: 17px;
  line-height: 1.75;
}

.product-detail-overview__copy p + p {
  margin-top: 22px;
}

.product-detail-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: clamp(60px, 8vw, 120px);
}

.product-detail-cards article {
  min-height: 350px;
  padding: clamp(28px, 3.5vw, 48px);
  border: 1px solid rgba(17, 19, 18, .1);
  border-radius: 16px;
  background: #f5f4f0;
}

.product-detail-cards article > span {
  display: grid;
  width: 34px;
  height: 34px;
  margin-bottom: 58px;
  place-items: center;
  border-radius: 50%;
  background: var(--signal-dark);
  color: #fff;
  font-size: 9px;
  font-weight: 850;
}

.product-detail-cards h3 {
  margin-bottom: 24px;
  font-size: clamp(27px, 2.7vw, 40px);
  letter-spacing: -.035em;
}

.product-detail-cards ul {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.product-detail-cards li {
  position: relative;
  padding-left: 16px;
  color: #5d625e;
  font-size: 13px;
  line-height: 1.5;
}

.product-detail-cards li::before {
  position: absolute;
  top: .65em;
  left: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--signal);
  content: "";
}

.product-specification-block {
  display: grid;
  grid-template-columns: minmax(300px, .78fr) minmax(520px, 1.22fr);
  gap: clamp(50px, 8vw, 130px);
  margin-top: clamp(80px, 10vw, 150px);
  padding-top: clamp(60px, 8vw, 110px);
  border-top: 1px solid var(--line);
}

.product-specification-block__heading > p:last-child {
  max-width: 520px;
  color: #626763;
  font-size: 14px;
}

.product-specification-table table {
  width: 100%;
  border-collapse: collapse;
}

.product-specification-table th,
.product-specification-table td {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  text-align: left;
}

.product-specification-table th {
  width: 31%;
  padding-right: 28px;
  color: var(--ink);
  font-size: 10px;
  font-weight: 850;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.product-specification-table td {
  color: #5b605c;
  font-size: 13px;
  line-height: 1.6;
}

.related-products {
  background: var(--fog);
}

.related-products__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 42px;
}

.related-product-card a {
  display: block;
  color: inherit;
  text-decoration: none;
}

.related-product-card__image {
  display: grid;
  aspect-ratio: 1 / 1;
  place-items: center;
  overflow: hidden;
  border-radius: 12px;
  background: #fff;
}

.related-product-card__image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 420ms var(--ease);
}

.related-product-card a:hover img {
  transform: scale(1.035);
}

.related-product-card__copy {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 4px 0;
}

.related-product-card__copy small {
  color: var(--signal-dark);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.related-product-card__copy strong {
  font-size: 18px;
  line-height: 1.2;
}

.related-product-card__copy > span {
  color: #717672;
  font-size: 11px;
}

.product-not-found {
  min-height: 70vh;
  padding-block: clamp(90px, 14vw, 180px);
}

.product-not-found h1 {
  max-width: 800px;
  font-size: clamp(54px, 8vw, 110px);
}

.product-not-found > p:not(.eyebrow) {
  max-width: 620px;
  margin-bottom: 32px;
  color: #5d625e;
}

@media (max-width: 1040px) {
  .about-image-band__caption {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .product-detail-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(320px, .88fr);
    gap: 42px;
  }

  .product-detail-intro {
    position: static;
  }

  .product-detail-cards {
    grid-template-columns: 1fr 1fr;
  }

  .product-detail-cards article:last-child {
    grid-column: 1 / -1;
    min-height: 260px;
  }

  .related-products__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .about-image-band {
    min-height: 720px;
  }

  .about-image-band > img {
    height: 720px;
  }

  .about-image-band__caption {
    right: 12px;
    bottom: 12px;
    left: 12px;
    gap: 5px;
    padding: 5px;
    border-radius: 13px;
  }

  .about-image-band__caption article {
    grid-template-columns: 26px minmax(0, 1fr);
    min-height: 68px;
    padding: 9px;
  }

  .about-image-band__caption article > small {
    width: 25px;
    height: 25px;
  }

  .about-image-band__caption article strong {
    font-size: 9px;
  }

  .about-image-band__caption article em {
    display: none;
  }

  .product-detail-hero__grid,
  .product-detail-overview,
  .product-specification-block {
    grid-template-columns: 1fr;
  }

  .product-detail-hero__grid {
    gap: 38px;
  }

  .product-detail-intro h1 {
    font-size: clamp(42px, 13vw, 66px);
  }

  .product-gallery__thumbs {
    grid-template-columns: repeat(5, minmax(48px, 1fr));
  }

  .product-detail-cards {
    grid-template-columns: 1fr;
  }

  .product-detail-cards article,
  .product-detail-cards article:last-child {
    grid-column: auto;
    min-height: 0;
  }

  .product-detail-cards article > span {
    margin-bottom: 34px;
  }

  .product-specification-table th,
  .product-specification-table td {
    display: block;
    width: 100%;
  }

  .product-specification-table th {
    padding-bottom: 6px;
    border-bottom: 0;
  }

  .product-specification-table td {
    padding-top: 0;
  }
}

@media (max-width: 520px) {
  .about-image-band__caption {
    grid-template-columns: 1fr 1fr;
  }

  .related-products__grid {
    grid-template-columns: 1fr;
  }

  .product-gallery__thumbs {
    display: flex;
    overflow-x: auto;
  }

  .product-gallery__thumb {
    flex: 0 0 64px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .about-image-band__caption article::after,
  .product-gallery__thumb,
  .related-product-card__image img {
    transition: none;
  }
}

/* ---------- 29. 目录轨道、颜色合并与详情图库修订 ---------- */
/* Home 客户分流：扩大有效宽度，并让选项卡在模块内保持可点击。 */
.audience > .shell {
  width: min(94vw, 1640px);
  max-width: none;
}

.audience-tabs {
  position: sticky;
  top: 92px;
  z-index: 8;
  margin-bottom: 18px;
  padding: 8px 10px 0;
  border: 1px solid var(--line);
  border-bottom-color: var(--line);
  border-radius: 12px 12px 0 0;
  background: rgba(250, 250, 247, .96);
  box-shadow: 0 14px 34px -30px rgba(17, 19, 18, .65);
  backdrop-filter: blur(16px);
}

.audience-tab {
  min-height: 52px;
  padding-inline: 16px;
  pointer-events: auto;
}

.audience-panel {
  grid-template-columns: minmax(0, 1.7fr) minmax(340px, .72fr);
  min-height: 540px;
}

.audience-panel__media {
  min-height: 520px;
}

.audience-panel__copy {
  padding: clamp(36px, 4vw, 64px);
}

.audience-panel__copy h3 {
  font-size: clamp(34px, 3.45vw, 56px);
}

/* Products 改为左侧可收起目录轨道，右侧直接显示产品。 */
.product-directory {
  background: #f7f6f2;
}

.product-directory__heading {
  margin-bottom: clamp(44px, 6vw, 76px);
}

.catalog-workbench {
  display: grid;
  grid-template-columns: minmax(285px, 342px) minmax(0, 1fr);
  gap: clamp(30px, 4vw, 64px);
  align-items: start;
  transition: grid-template-columns 320ms var(--ease), gap 320ms var(--ease);
}

.catalog-workbench.is-rail-collapsed {
  grid-template-columns: 0 minmax(0, 1fr);
  gap: 0;
}

.catalog-rail {
  position: sticky;
  top: 106px;
  max-height: calc(100vh - 128px);
  min-width: 0;
  overflow: auto;
  padding: 18px;
  border: 1px solid rgba(17, 19, 18, .12);
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 28px 70px -58px rgba(17, 19, 18, .72);
  scrollbar-width: thin;
}

.catalog-rail[hidden] {
  display: none;
}

.catalog-rail__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 8px 6px 18px;
  border-bottom: 1px solid var(--line);
}

.catalog-rail__header .eyebrow {
  margin-bottom: 5px;
}

.catalog-rail__header h3 {
  margin: 0;
  font-size: 26px;
  letter-spacing: -.035em;
}

.catalog-rail__collapse,
.catalog-rail__reopen {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 10px;
  border: 1px solid rgba(17, 19, 18, .16);
  border-radius: 999px;
  background: transparent;
  color: #565b57;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .07em;
  text-transform: uppercase;
  cursor: pointer;
}

.catalog-rail__collapse span {
  max-width: 72px;
}

.catalog-rail__collapse:hover,
.catalog-rail__reopen:hover,
.catalog-rail__collapse:focus-visible,
.catalog-rail__reopen:focus-visible {
  border-color: var(--signal-dark);
  outline: none;
  color: var(--signal-dark);
}

.catalog-rail__reopen {
  margin-bottom: 16px;
  padding-inline: 14px;
  background: #fff;
}

.catalog-rail__reopen[hidden] {
  display: none;
}

.catalog-rail__hint {
  margin: 14px 4px;
  padding: 12px 13px;
  border-left: 3px solid var(--signal);
  background: #f4eef0;
  color: #626763;
  font-size: 10px;
  line-height: 1.55;
}

.catalog-rail__hint strong {
  color: var(--signal-dark);
}

.catalog-category-list {
  display: grid;
  gap: 5px;
}

.catalog-category {
  display: grid;
  min-height: 64px;
  grid-template-columns: 42px minmax(0, 1fr) auto;
  gap: 11px;
  align-items: center;
  padding: 9px;
  border: 1px solid transparent;
  border-radius: 12px;
  background: transparent;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
  transition: background 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.catalog-category:hover,
.catalog-category:focus-visible,
.catalog-category.is-active {
  border-color: rgba(139, 31, 61, .22);
  outline: none;
  background: #f5ecef;
  transform: translateX(3px);
}

.catalog-category__thumb,
.catalog-category__index {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  overflow: hidden;
  border-radius: 10px;
  background: #ecebe6;
  color: var(--signal-dark);
  font-size: 9px;
  font-weight: 850;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.catalog-category__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.catalog-category > span:nth-child(2) {
  display: grid;
  gap: 3px;
}

.catalog-category strong {
  font-size: 12px;
  line-height: 1.18;
}

.catalog-category small {
  color: #7b807c;
  font-size: 9px;
  line-height: 1.3;
}

.catalog-category > b {
  display: grid;
  min-width: 27px;
  height: 27px;
  place-items: center;
  border-radius: 50%;
  background: #eeede8;
  color: #5d625e;
  font-size: 9px;
}

.catalog-category.is-active > b {
  background: var(--signal-dark);
  color: #fff;
}

.catalog-results {
  min-width: 0;
}

.product-toolbar {
  position: sticky;
  top: 96px;
  z-index: 5;
  margin: 0 0 24px;
  padding: 15px 0 14px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(247, 246, 242, .95);
  backdrop-filter: blur(14px);
  scroll-margin-top: 118px;
}

.product-selection .eyebrow {
  margin-bottom: 3px;
}

.product-selection h3 {
  margin: 0;
  font-size: clamp(25px, 2.6vw, 38px);
  letter-spacing: -.035em;
}

.product-count {
  max-width: 310px;
  text-align: right;
}

/* 侧栏中的二、三级类目使用原生 details，层级紧凑且可折叠。 */
.product-taxonomy {
  margin: 18px 0 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--ink);
  box-shadow: none;
  scroll-margin-top: 118px;
}

.taxonomy-heading {
  align-items: center;
  gap: 10px;
  padding: 18px 5px 13px;
  border-top: 1px solid var(--line);
  border-bottom: 0;
}

.taxonomy-heading .eyebrow {
  margin-bottom: 3px;
  color: var(--signal-dark);
}

.taxonomy-heading h2 {
  color: var(--ink);
  font-size: 21px;
}

.taxonomy-close {
  padding: 7px 8px;
  border: 0;
  background: transparent;
  color: #6e736f;
  font-size: 9px;
  font-weight: 800;
  text-transform: uppercase;
  cursor: pointer;
}

.taxonomy-close span {
  color: var(--signal-dark);
  font-size: 16px;
}

.taxonomy-view-all {
  width: 100%;
  min-height: 42px;
  justify-content: space-between;
  padding: 10px 12px;
  border: 1px solid rgba(139, 31, 61, .22);
  border-radius: 9px;
  background: #f5ecef;
  color: var(--signal-dark);
  font-size: 9px;
}

.taxonomy-view-all:hover,
.taxonomy-view-all:focus-visible {
  border-color: var(--signal-dark);
  background: var(--signal-dark);
  color: #fff;
}

.taxonomy-groups {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-top: 10px;
  background: transparent;
}

.taxonomy-group {
  padding: 0;
  border-top: 1px solid var(--line);
  background: transparent;
}

.taxonomy-group:last-child {
  border-bottom: 1px solid var(--line);
}

.taxonomy-group summary {
  display: grid;
  min-height: 48px;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 10px 5px;
  color: var(--ink);
  font-size: 11px;
  font-weight: 800;
  cursor: pointer;
  list-style: none;
}

.taxonomy-group summary::-webkit-details-marker {
  display: none;
}

.taxonomy-group summary::after {
  grid-column: 2;
  color: var(--signal-dark);
  content: "+";
  font-size: 17px;
}

.taxonomy-group[open] summary::after {
  content: "−";
}

.taxonomy-group summary small {
  display: none;
}

.taxonomy-group__all {
  width: 100%;
  padding: 7px 9px;
  border: 0;
  border-left: 2px solid var(--signal);
  background: #f2f1ed;
  color: #626763;
  font-size: 9px;
  font-weight: 750;
  text-align: left;
  cursor: pointer;
}

.taxonomy-group__items {
  gap: 2px;
  padding: 6px 0 11px;
}

.taxonomy-chip {
  min-height: 37px;
  padding: 7px 8px;
  border-bottom-color: rgba(17, 19, 18, .08);
  border-radius: 7px;
  color: #555a56;
  font-size: 11px;
}

.taxonomy-chip small {
  width: 23px;
  height: 23px;
  border-color: rgba(17, 19, 18, .12);
  color: #6d726e;
}

.taxonomy-chip:hover,
.taxonomy-chip:focus-visible,
.taxonomy-chip.is-active {
  padding-left: 11px;
  background: var(--signal-dark);
  color: #fff;
}

/* 产品卡取消翻面，一张代表图对应一个真实产品家族。 */
.product-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 2.2vw, 30px);
  margin-top: 0;
}

.catalog-workbench.is-rail-collapsed .product-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.product-tile {
  aspect-ratio: auto;
  perspective: none;
}

.product-tile::after {
  border-radius: 16px;
}

.product-tile:hover {
  transform: translateY(-5px);
}

.product-tile__button {
  height: auto;
  border-radius: 16px;
  color: inherit;
  text-decoration: none;
}

.product-tile__visual {
  position: relative;
  display: grid;
  aspect-ratio: 1 / 1;
  place-items: center;
  overflow: hidden;
  border: 1px solid rgba(17, 19, 18, .08);
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 24px 58px -44px rgba(17, 19, 18, .68);
}

.product-tile__visual img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 480ms var(--ease);
}

.product-tile:hover .product-tile__visual img {
  transform: scale(1.035);
}

.product-variant-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 7px 9px;
  border: 1px solid rgba(255, 255, 255, .72);
  border-radius: 999px;
  background: rgba(255, 255, 255, .88);
  color: var(--signal-dark);
  font-size: 8px;
  font-weight: 850;
  letter-spacing: .07em;
  text-transform: uppercase;
  backdrop-filter: blur(10px);
}

.product-tile__caption {
  display: grid;
  gap: 7px;
  padding: 15px 3px 8px;
}

.product-tile__caption small {
  color: var(--signal-dark);
  font-size: 8px;
  font-weight: 850;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.product-tile__caption strong {
  min-height: 2.3em;
  font-size: clamp(19px, 1.7vw, 27px);
  letter-spacing: -.035em;
  line-height: 1.08;
}

.product-tile__caption > span:last-child {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 9px;
  border-top: 1px solid var(--line);
  color: #747975;
  font-size: 9px;
  font-weight: 750;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.product-tile__caption b {
  color: var(--signal-dark);
}

@media (hover: hover) and (pointer: fine) {
  .product-grid:has(.product-tile:hover) .product-tile:not(:hover) {
    filter: none;
    opacity: 1;
    transform: none;
  }
}

/* VORA 式详情首屏：大图库、清晰询盘动作和可见的颜色选择。 */
.product-gallery__thumbs {
  display: flex;
  grid-template-columns: none;
  gap: 8px;
  padding: 2px 1px 8px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
}

.product-gallery__thumb {
  width: clamp(64px, 7vw, 92px);
  flex: 0 0 auto;
  scroll-snap-align: start;
}

.product-detail-options {
  margin-top: 28px;
  padding: 17px;
  border: 1px solid rgba(17, 19, 18, .12);
  border-radius: 14px;
  background: rgba(255, 255, 255, .7);
}

.product-detail-options[hidden] {
  display: none;
}

.product-detail-options__heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 12px;
}

.product-detail-options__heading strong {
  font-size: 11px;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.product-detail-options__heading span {
  color: var(--signal-dark);
  font-size: 9px;
  font-weight: 800;
}

.product-detail-options__list {
  display: flex;
  gap: 8px;
  padding-bottom: 5px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.product-option {
  display: grid;
  width: 70px;
  flex: 0 0 70px;
  gap: 5px;
  padding: 5px;
  border: 1px solid rgba(17, 19, 18, .13);
  border-radius: 9px;
  background: #fff;
  color: #626763;
  cursor: pointer;
}

.product-option img {
  width: 58px;
  height: 58px;
  border-radius: 6px;
  object-fit: contain;
  background: #f3f2ee;
}

.product-option span {
  overflow: hidden;
  font-size: 8px;
  text-align: center;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.product-option:hover,
.product-option:focus-visible,
.product-option.is-active {
  border-color: var(--signal-dark);
  outline: none;
  color: var(--signal-dark);
}

.product-detail-options > p {
  margin: 9px 0 0;
  color: #7a7f7b;
  font-size: 9px;
  line-height: 1.45;
}

@media (max-width: 1180px) {
  .catalog-workbench {
    grid-template-columns: minmax(250px, 285px) minmax(0, 1fr);
    gap: 28px;
  }

  .product-grid,
  .catalog-workbench.is-rail-collapsed .product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .audience-panel {
    grid-template-columns: minmax(0, 1.45fr) minmax(330px, .8fr);
  }
}

@media (max-width: 900px) {
  .audience > .shell {
    width: min(calc(100% - (var(--gutter) * 2)), 1720px);
  }

  .audience-tabs {
    top: 62px;
  }

  .audience-panel {
    grid-template-columns: 1fr;
  }

  .audience-panel__media {
    min-height: 480px;
  }

  .catalog-workbench,
  .catalog-workbench.is-rail-collapsed {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .catalog-rail {
    position: static;
    max-height: none;
  }

  .catalog-rail__collapse,
  .catalog-rail__reopen {
    display: none;
  }

  .product-toolbar {
    top: 62px;
  }
}

@media (max-width: 620px) {
  .audience-tabs {
    grid-template-columns: repeat(3, minmax(135px, 1fr));
    overflow-x: auto;
  }

  .audience-tab {
    min-height: 46px;
    padding: 12px 10px;
    font-size: 9px;
  }

  .audience-panel__media {
    min-height: 360px;
  }

  .audience-panel__copy {
    padding: 42px 24px;
  }

  .product-grid,
  .catalog-workbench.is-rail-collapsed .product-grid {
    grid-template-columns: 1fr;
  }

  .product-toolbar {
    align-items: flex-end;
    gap: 12px;
  }

  .product-count {
    max-width: 140px;
    font-size: 9px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .catalog-workbench,
  .catalog-category,
  .product-tile,
  .product-tile__visual img {
    transition: none;
  }
}

/* ---------- 30. 第一版产品视觉恢复与非吸附式目录 ---------- */
/* Home 的客户分流标签保留在模块顶部，不再随页面滚动。 */
.audience-tabs {
  position: static;
  top: auto;
  z-index: auto;
  backdrop-filter: none;
}

/* 一级类目恢复为五张图片组成的伸缩画廊。 */
.product-directory__heading {
  margin-bottom: 0;
}

.category-accordion--five {
  margin-top: clamp(34px, 4.6vw, 66px);
}

/* 二、三级类目改为画廊下方的完整横向目录，不吸附、不跟随滚动。 */
.product-taxonomy {
  margin-top: 18px;
  padding: clamp(24px, 3.2vw, 42px);
  border: 1px solid rgba(255, 255, 255, .08);
  border-top: 3px solid var(--signal);
  border-radius: 8px;
  background: #111312;
  color: var(--white);
  box-shadow: 0 30px 70px -50px rgba(0, 0, 0, .8);
  scroll-margin-top: 98px;
}

.product-taxonomy[hidden] {
  display: none;
}

.taxonomy-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  padding: 0 0 20px;
  border: 0;
  border-bottom: 1px solid rgba(255, 255, 255, .16);
}

.taxonomy-heading .eyebrow {
  margin-bottom: 6px;
  color: #c98598;
}

.taxonomy-heading h2 {
  margin: 0;
  color: var(--white);
  font-size: clamp(26px, 3vw, 42px);
}

.taxonomy-close {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, .24);
  border-radius: 999px;
  background: transparent;
  color: rgba(255, 255, 255, .72);
}

.taxonomy-close:hover,
.taxonomy-close:focus-visible {
  border-color: #c98598;
  outline: none;
  color: var(--white);
}

.taxonomy-close span {
  color: #c98598;
}

.taxonomy-view-all {
  display: flex;
  width: 100%;
  min-height: 48px;
  align-items: center;
  justify-content: space-between;
  margin-top: 18px;
  padding: 12px 15px;
  border: 1px solid rgba(201, 133, 152, .45);
  border-radius: 4px;
  background: rgba(139, 31, 61, .18);
  color: var(--white);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .04em;
  cursor: pointer;
}

.taxonomy-view-all:hover,
.taxonomy-view-all:focus-visible {
  border-color: #c98598;
  outline: none;
  background: var(--signal-dark);
}

.taxonomy-groups {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1px;
  margin-top: 18px;
  background: rgba(255, 255, 255, .14);
}

.taxonomy-group,
.taxonomy-group:last-child {
  padding: 18px;
  border: 0;
  background: #171918;
}

.taxonomy-group summary {
  display: grid;
  min-height: 42px;
  grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 10px;
  padding: 0 0 13px;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
  color: var(--white);
  font-size: 12px;
  font-weight: 850;
  cursor: pointer;
  list-style: none;
}

.taxonomy-group summary small {
  display: inline-grid;
  min-width: 25px;
  height: 25px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 50%;
  color: rgba(255, 255, 255, .64);
}

.taxonomy-group summary::after {
  grid-column: auto;
  color: #c98598;
}

.taxonomy-group__all {
  margin-top: 11px;
  padding: 9px 10px;
  border: 0;
  border-left: 2px solid #c98598;
  background: rgba(255, 255, 255, .06);
  color: rgba(255, 255, 255, .72);
}

.taxonomy-group__all:hover,
.taxonomy-group__all:focus-visible {
  outline: none;
  background: rgba(139, 31, 61, .34);
  color: var(--white);
}

.taxonomy-group__items {
  display: grid;
  gap: 3px;
  padding: 7px 0 0;
}

.taxonomy-chip {
  display: flex;
  min-height: 38px;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 9px;
  border: 0;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  border-radius: 3px;
  background: transparent;
  color: rgba(255, 255, 255, .74);
  font-size: 11px;
  text-align: left;
  cursor: pointer;
}

.taxonomy-chip small {
  display: grid;
  width: 24px;
  height: 24px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 50%;
  color: rgba(255, 255, 255, .55);
}

.taxonomy-chip:hover,
.taxonomy-chip:focus-visible,
.taxonomy-chip.is-active {
  padding-left: 12px;
  outline: none;
  background: var(--signal-dark);
  color: var(--white);
}

/* 产品筛选与结果栏回到普通文档流，不再锁在视口顶部。 */
.product-toolbar {
  position: static;
  top: auto;
  z-index: auto;
  margin-top: clamp(42px, 5vw, 72px);
  padding: 0 0 20px;
  background: transparent;
  backdrop-filter: none;
}

.product-count {
  max-width: none;
  text-align: right;
}

/* 产品卡恢复第一版翻面、追光和流动边框；卡面不再显示图片数或颜色数。 */
.product-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(16px, 2vw, 28px);
  margin-top: 32px;
}

.product-tile {
  aspect-ratio: 4 / 5;
  perspective: 1200px;
}

.product-tile::after {
  border-radius: 8px;
}

.product-tile:hover {
  transform: none;
}

.product-tile__button {
  height: 100%;
  border-radius: 8px;
}

@media (hover: hover) and (pointer: fine) {
  .product-grid:has(.product-tile:hover) .product-tile:not(:hover) {
    filter: saturate(.62);
    opacity: .76;
    transform: scale(.985);
  }
}

@media (max-width: 1180px) {
  .product-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .taxonomy-groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .audience-tabs {
    position: static;
    top: auto;
  }

  .product-taxonomy {
    padding: 22px 16px;
  }

  .taxonomy-heading {
    align-items: flex-start;
  }

  .taxonomy-groups {
    grid-template-columns: 1fr;
  }

  .product-toolbar {
    align-items: flex-start;
  }

  .product-count {
    max-width: none;
    text-align: left;
  }

  .product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 460px) {
  .product-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .category-panel,
  .category-panel img,
  .product-tile,
  .product-tile__inner,
  .product-tile__front img {
    transition: none;
  }

  .product-tile__back::before {
    animation: none;
  }
}
/* ---------- 31. Solutions 比例统一与 About 宽幅修订 ---------- */
/* 三条解决方案使用同一结构和同一 4:3 图片比例，避免第二条因反向网格变窄。 */
.solution-row,
.solution-row--reverse {
  grid-template-columns: 130px minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(34px, 4vw, 68px);
}

.solution-row__index {
  grid-column: 1;
  grid-row: 1;
}

.solution-row__copy,
.solution-row--reverse .solution-row__copy {
  grid-column: 2;
  grid-row: 1;
}

.solution-row__media,
.solution-row--reverse .solution-row__media {
  grid-column: 3;
  grid-row: 1;
  min-height: 0;
  aspect-ratio: 4 / 3;
}

.solution-row__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* About 工作场景图按原始 3:2 比例完整展示，流程卡独立放在图片下方。 */
.about-image-band {
  min-height: 0;
  padding: clamp(28px, 4vw, 64px) var(--gutter) clamp(28px, 4vw, 64px);
  overflow: visible;
  background: #151716;
}

.about-image-band > img {
  width: min(100%, 1720px);
  height: auto;
  min-height: 0;
  aspect-ratio: 3 / 2;
  margin-inline: auto;
  border-radius: 18px 18px 0 0;
  object-fit: contain;
  background: #0f1110;
}

.about-image-band__caption {
  position: relative;
  right: auto;
  bottom: auto;
  left: auto;
  width: min(100%, 1720px);
  margin-inline: auto;
  border-top: 0;
  border-radius: 0 0 18px 18px;
}

/* Principles 使用更宽的编辑台式版面，并减少过量纵向留白。 */
.principles {
  padding-block: clamp(72px, 7vw, 112px);
}

.principles > .shell {
  width: min(96vw, 1800px);
  max-width: none;
  padding-inline: clamp(24px, 3vw, 54px);
}

.principles .section-heading {
  margin-bottom: clamp(42px, 4.5vw, 68px);
}

.principles .section-heading--split {
  grid-template-columns: minmax(0, 1.55fr) minmax(300px, .6fr);
  gap: clamp(56px, 8vw, 150px);
}

.principles .section-heading h2 {
  max-width: 920px;
}

.principle-grid article {
  min-height: 280px;
  padding: clamp(30px, 3.2vw, 52px);
}

.principle-grid span {
  margin-bottom: clamp(38px, 4vw, 54px);
}

.principle-grid h3 {
  font-size: clamp(30px, 2.6vw, 42px);
}

.principle-grid p {
  max-width: 420px;
  font-size: 15px;
  line-height: 1.6;
}

@media (max-width: 1040px) {
  .solution-row,
  .solution-row--reverse {
    grid-template-columns: 72px minmax(0, 1fr);
  }

  .solution-row__copy,
  .solution-row--reverse .solution-row__copy {
    grid-column: 2;
    grid-row: 1;
  }

  .solution-row__media,
  .solution-row--reverse .solution-row__media {
    grid-column: 2;
    grid-row: 2;
  }

  .about-image-band__caption {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .principles > .shell {
    width: 100%;
    padding-inline: var(--gutter);
  }

  .principles .section-heading--split,
  .principle-grid {
    grid-template-columns: 1fr;
  }

  .principle-grid article {
    min-height: 0;
  }

  .principle-grid article + article {
    border-top: 1px solid var(--line);
    border-left: 0;
  }
}

@media (max-width: 720px) {
  .solution-row,
  .solution-row--reverse {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .solution-row__index,
  .solution-row__copy,
  .solution-row__media,
  .solution-row--reverse .solution-row__copy,
  .solution-row--reverse .solution-row__media {
    grid-column: 1;
    grid-row: auto;
  }

  .about-image-band {
    padding: 14px 12px 24px;
  }

  .about-image-band > img {
    height: auto;
    min-height: 0;
    border-radius: 12px 12px 0 0;
  }

  .about-image-band__caption {
    right: auto;
    bottom: auto;
    left: auto;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-radius: 0 0 12px 12px;
  }
}
/* ---------- 32. 浏览器适配、内页动效与响应式收口 ---------- */
/* 轮播控制独立于选项卡，保持原本的静态导航位置与酒红色选中线。 */
.audience-carousel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

.audience-carousel > .audience-carousel__controls { grid-area: 1 / 1; }
.audience-carousel > .audience-tabs { grid-area: 2 / 1; }
.audience-carousel > .audience-panel { grid-area: 3 / 1; }

/* 面板共用同一网格行，由最长内容决定高度；隐藏项不可见、不可聚焦。 */
.audience-carousel > .audience-panel[hidden] {
  display: grid;
  visibility: hidden;
  pointer-events: none;
  animation: none;
}

.audience-carousel .audience-panel__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.audience-carousel__controls {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 12px;
}

.audience-carousel__controls[hidden] { display: none; }

.audience-carousel__position {
  margin-right: auto;
  color: #666b67;
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  letter-spacing: .12em;
}

.audience-carousel__controls button {
  display: inline-flex;
  min-width: 42px;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font-size: 12px;
}

.audience-carousel__controls button:hover {
  border-color: var(--signal);
  color: var(--signal);
}

/* 图片不再撑高网格；容器随文案自然伸展，避免按钮溢入下一节。 */
.system-story {
  height: auto;
  min-height: 0;
  grid-template-columns: minmax(0, 1fr);
}

.system-story__media {
  position: relative;
  height: clamp(240px, 42vw, 380px);
  min-height: 0;
}

.system-story__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.system-story__copy {
  min-width: 0;
  padding: clamp(32px, 3.4vw, 64px);
}

.system-story__copy .eyebrow {
  margin-bottom: 16px;
  font-size: 11px;
}

.system-story__copy h2 {
  margin-bottom: 24px;
  font-size: clamp(36px, 3.2vw, 56px);
  line-height: 1.06;
}

.system-story__copy > p:not(.eyebrow) {
  margin-bottom: 28px;
  font-size: 17px;
  line-height: 1.6;
}

.system-story .module-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 22px;
  margin-bottom: 24px;
  border-top: 0;
}

.system-story .module-list li {
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 8px;
  padding-block: 12px;
  border-top: 1px solid var(--line-light);
  border-bottom: 0;
}

.system-story .module-list strong { font-size: 15px; }
.system-story .module-list small { font-size: 13px; line-height: 1.5; }

.system-story__copy > .button {
  align-self: flex-start;
  min-height: 46px;
  padding: 13px 18px;
  font-size: 13px;
}

@media (min-width: 981px) {
  .system-story {
    min-height: calc(100svh - var(--story-header-height, 72px));
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    scroll-margin-top: calc(var(--story-header-height, 72px) - var(--story-scroll-padding, 94px));
  }

  .system-story__media { height: auto; }

  .system-story__copy {
    padding: clamp(24px, 4svh, 56px) clamp(32px, 4vw, 72px);
  }

  .system-story__copy h2 {
    font-size: clamp(36px, min(3.7vw, 7svh), 64px);
    line-height: 1.02;
  }

  .system-story__copy > p:not(.eyebrow) {
    margin-bottom: clamp(16px, 2.8svh, 28px);
    font-size: clamp(15px, 2svh, 18px);
  }
}

@media (min-width: 981px) and (max-width: 1180px) {
  .system-story { grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); }
}

/* 较矮的笔记本窗口压缩排版，而不是裁掉文案或让按钮越界。 */
@media (min-width: 981px) and (max-height: 720px) {
  .system-story__copy { padding: 24px clamp(24px, 2.4vw, 40px); }
  .system-story__copy .eyebrow { margin-bottom: 12px; font-size: 10px; }
  .system-story__copy h2 { font-size: clamp(32px, min(3.2vw, 6svh), 46px); }
  .system-story__copy > p:not(.eyebrow) { margin-bottom: 18px; font-size: 14px; line-height: 1.5; }
  .system-story .module-list { margin-bottom: 18px; }
  .system-story .module-list li { padding-block: 8px; }
  .system-story .module-list strong { font-size: 13px; }
  .system-story .module-list small { font-size: 12px; line-height: 1.4; }
}

@media (min-width: 981px) and (max-height: 640px) {
  .system-story__copy { padding-block: 20px; }
  .system-story__copy h2 { margin-bottom: 16px; }
  .system-story__copy > p:not(.eyebrow),
  .system-story .module-list { margin-bottom: 12px; }
  .system-story .module-list li { padding-block: 6px; }
  .system-story .module-list small { font-size: 11px; line-height: 1.3; }
}

@media (max-width: 480px) {
  .system-story .module-list { grid-template-columns: minmax(0, 1fr); }
}

/* Product 与 Solutions 首屏复用 Home 图片的淡入缩放动效。 */
.page-hero__media {
  animation: hero-enter 1.2s var(--ease) both;
}

/* 第二条 Studio 方案恢复图片在左、文案在右；图片仍保持统一的 4:3 尺寸。 */
@media (min-width: 1041px) {
  .solution-row--reverse .solution-row__media {
    grid-column: 2;
    grid-row: 1;
  }

  .solution-row--reverse .solution-row__copy {
    grid-column: 3;
    grid-row: 1;
  }
}

/* Contact 左栏只保留一条有意义的分隔线，底部说明改成独立信息块。 */
.contact-channel {
  margin-top: 34px;
  padding: 22px 0 0;
  border-top: 1px solid rgba(255, 255, 255, .22);
  border-bottom: 0;
}

.contact-channel a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.project__promise {
  align-items: flex-start;
  margin-top: 32px;
  padding: 22px 24px;
  border-top: 0;
  border-left: 2px solid var(--signal);
  background: rgba(255, 255, 255, .055);
}

.project__promise > span {
  flex: 0 0 auto;
}

/* About 横幅铺满两侧，裁掉下方桌面，流程卡上移叠在图内。 */
.about-image-band {
  height: clamp(380px, 62svh, 620px);
  min-height: 0;
  padding: 0;
  overflow: hidden;
}

.about-image-band > img {
  width: 100%;
  max-width: none;
  height: 100%;
  min-height: 0;
  aspect-ratio: auto;
  margin: 0;
  border-radius: 0;
  object-fit: cover;
  object-position: center top;
}

.about-image-band__caption {
  position: absolute;
  right: var(--gutter);
  bottom: clamp(16px, 2.5vw, 32px);
  left: var(--gutter);
  width: auto;
  max-width: none;
  margin: 0;
  border: 1px solid rgba(255, 255, 255, .55);
  border-radius: 14px;
}

@media (max-width: 760px) {
  .about-image-band { height: 440px; }
  .about-image-band > img { object-position: left top; }
  .about-image-band__caption {
    right: 16px;
    bottom: 16px;
    left: 16px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* 目录曾沿用侧栏的 margin: 18px 0 0；统一整组版心，不仅居中筛选按钮。 */
.product-directory > .shell {
  width: min(calc(100% - (var(--gutter) * 2)), var(--max));
  margin-inline: auto;
}

.product-directory > .shell:not(.product-taxonomy) {
  padding-inline: 0;
}

/* 产品筛选以页面中心为基准，右侧产品数量不再把导航推向左侧。 */
.product-toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
}

.product-filters {
  grid-column: 2;
  justify-content: center;
  margin-inline: auto;
}

.product-count {
  grid-column: 3;
  justify-self: end;
  text-align: right;
}

@media (max-width: 1180px) {
  .product-directory .product-toolbar {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }

  .product-directory .product-filters { grid-area: 1 / 1; }
  .product-directory .product-count {
    grid-area: 2 / 1;
    justify-self: center;
    margin: 0;
    text-align: center;
  }
}

/* 窄屏顶栏改成 Logo / 搜索 / 菜单三列，取消会造成重叠的绝对定位。 */
@media (max-width: 900px) {
  .site-header {
    grid-template-columns: minmax(0, 1fr) auto auto;
    column-gap: 12px;
  }

  .brand {
    grid-column: 1;
    grid-row: 1;
    min-width: 0;
  }

  .header-search {
    position: relative;
    top: auto;
    right: auto;
    grid-column: 2;
    grid-row: 1;
    justify-self: end;
    width: 40px;
  }

  .header-search:focus-within,
  .header-search.is-active,
  .header-search:has(.header-search__input:not(:placeholder-shown)) {
    width: min(210px, max(88px, calc(100vw - 290px)));
  }

  .menu-toggle {
    grid-column: 3;
    grid-row: 1;
  }

  .product-toolbar {
    display: flex;
    align-items: center;
    flex-direction: column;
    justify-content: center;
  }

  .product-filters {
    justify-content: center;
    margin-inline: auto;
  }

  .product-count {
    position: static;
    align-self: center;
    max-width: none;
    text-align: center;
  }
}

@media (max-width: 620px) {
  .site-header {
    column-gap: 8px;
  }

  .brand img {
    width: 148px;
  }

  .menu-toggle {
    width: 44px;
    min-width: 44px;
    justify-content: center;
  }

  .menu-toggle__label {
    display: none;
  }

  .header-search:focus-within,
  .header-search.is-active,
  .header-search:has(.header-search__input:not(:placeholder-shown)) {
    width: min(190px, max(88px, calc(100vw - 248px)));
  }

  .product-filters {
    width: min(100%, 520px);
    margin-inline: auto;
  }
}

@media (max-width: 380px) {
  .brand img {
    width: 126px;
  }

  .header-search:focus-within,
  .header-search.is-active,
  .header-search:has(.header-search__input:not(:placeholder-shown)) {
    width: max(82px, calc(100vw - 226px));
  }
}

/* ---------- Deployment, secure inquiry and legal pages ---------- */
.form-trap {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  clip-path: inset(50%) !important;
  white-space: nowrap !important;
}

.turnstile-slot {
  width: 100%;
  min-height: 0;
  margin-top: 18px;
}

.turnstile-slot:not(:empty) {
  min-height: 65px;
}

.form-status {
  min-height: 1.4em;
  margin: 14px 0 0;
  color: #565852;
  font-size: 0.9rem;
  line-height: 1.5;
}

.form-status.is-error {
  color: #9a163a;
}

.form-status.is-success {
  color: #1e6a45;
  font-weight: 700;
}

.project-form .button[disabled] {
  cursor: wait;
  opacity: 0.76;
}

.button-spinner {
  display: inline-block;
  width: 1em;
  height: 1em;
  margin-right: 0.65em;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  vertical-align: -0.15em;
  animation: kando-spin 0.75s linear infinite;
}

@keyframes kando-spin {
  to { transform: rotate(360deg); }
}

.consent__text a,
.site-footer__bottom a,
.legal-content a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

.consent__text a:hover,
.site-footer__bottom a:hover,
.legal-content a:hover {
  color: var(--signal, #8b1f3d);
}

.legal-hero {
  padding: clamp(96px, 12vw, 170px) 0 clamp(62px, 8vw, 104px);
  background: #111312;
  color: #fff;
}

.legal-shell {
  width: min(100% - 40px, 840px);
}

.legal-hero h1 {
  max-width: 760px;
  margin: 14px 0 18px;
  font-size: clamp(3rem, 8vw, 7.5rem);
  line-height: 0.9;
  letter-spacing: -0.055em;
}

.legal-intro {
  max-width: 640px;
  color: #d7d8d4;
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  line-height: 1.65;
}

.legal-date {
  margin-top: 28px;
  color: #aeb0aa;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.legal-content {
  background: #f7f6f2;
}

.legal-content h2 {
  margin: 48px 0 12px;
  font-size: clamp(1.35rem, 3vw, 2rem);
  letter-spacing: -0.025em;
}

.legal-content h2:first-child {
  margin-top: 0;
}

.legal-content p {
  margin: 0;
  color: #4d504b;
  font-size: 1rem;
  line-height: 1.85;
}

.error-page {
  min-height: 100vh;
  background: #111312;
}

.error-page__main {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 40px 20px;
  background:
    radial-gradient(circle at 82% 15%, rgba(139, 31, 61, 0.42), transparent 36%),
    linear-gradient(135deg, #111312 0%, #1a1c1a 100%);
}

.error-page__panel {
  width: min(100%, 820px);
  color: #fff;
}

.error-page__panel .brand {
  display: inline-flex;
  margin-bottom: clamp(68px, 12vw, 130px);
}

.error-page__panel h1 {
  max-width: 760px;
  margin: 14px 0 22px;
  font-size: clamp(3.2rem, 10vw, 8.5rem);
  line-height: 0.86;
  letter-spacing: -0.065em;
}

.error-page__panel > p:not(.eyebrow) {
  max-width: 620px;
  color: #c7c9c4;
  font-size: clamp(1rem, 2vw, 1.2rem);
  line-height: 1.7;